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Merged with next. Attach successful

This commit is contained in:
Ismael Gomez 2017-09-01 19:32:57 +02:00
parent e5feec1934 02439f291d
commit a51b6b09dd
112 changed files with 2413 additions and 1892 deletions
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33
CMakeLists.txt
View File

@ -42,6 +42,8 @@ include(SRSLTEPackage) #setup cpack
include(CTest)
set(CTEST_MEMORYCHECK_COMMAND valgrind)
set(CTEST_MEMORYCHECK_COMMAND_OPTIONS "--trace-children=yes --leak-check=full" )
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/CTestCustom.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/CTestCustom.cmake"
@ -74,8 +76,30 @@ set(GCC_ARCH native CACHE STRING "GCC compile for specific architecture.")
########################################################################
# Find dependencies
########################################################################
# Threads
find_package(Threads REQUIRED)
# FFT
find_package(MKL)
if(MKL_FOUND)
include_directories(${MKL_INCLUDE_DIRS})
link_directories(${MKL_LIBRARY_DIRS})
set(FFT_LIBRARIES "${MKL_STATIC_LIBRARIES}") # Static by default
else(MKL_FOUND)
find_package(FFTW3F REQUIRED)
if(FFTW3F_FOUND)
include_directories(${FFTW3F_INCLUDE_DIRS})
link_directories(${FFTW3F_LIBRARY_DIRS})
if(BUILD_STATIC)
set(FFT_LIBRARIES "${FFTW3F_STATIC_LIBRARIES}")
else(BUILD_STATIC)
set(FFT_LIBRARIES "${FFTW3F_LIBRARIES}")
endif(BUILD_STATIC)
endif(FFTW3F_FOUND)
endif(MKL_FOUND)
# Crypto
find_package(Polarssl)
if (POLARSSL_FOUND)
set(SEC_INCLUDE_DIRS "${POLARSSL_INCLUDE_DIRS}")
@ -100,12 +124,14 @@ else(POLARSSL_FOUND)
endif (MBEDTLS_FOUND)
endif(POLARSSL_FOUND)
# UHD
find_package(UHD)
if(UHD_FOUND)
include_directories(${UHD_INCLUDE_DIRS})
link_directories(${UHD_LIBRARY_DIRS})
endif(UHD_FOUND)
# BladeRF
if(ENABLE_BLADERF)
find_package(bladeRF)
if(BLADERF_FOUND)
@ -114,6 +140,7 @@ if(ENABLE_BLADERF)
endif(BLADERF_FOUND)
endif(ENABLE_BLADERF)
# Soapy
find_package(SoapySDR)
if(SOAPYSDR_FOUND)
include_directories(${SOAPYSDR_INCLUDE_DIRS})
@ -127,8 +154,8 @@ else(BLADERF_FOUND OR UHD_FOUND OR SOAPYSDR_FOUND)
add_definitions(-DDISABLE_RF)
endif(BLADERF_FOUND OR UHD_FOUND OR SOAPYSDR_FOUND)
# Boost
if(ENABLE_SRSUE OR ENABLE_SRSENB)
# Find Boost
if(BUILD_STATIC)
set(Boost_USE_STATIC_LIBS ON)
endif(BUILD_STATIC)
@ -152,7 +179,7 @@ if(ENABLE_SRSUE OR ENABLE_SRSENB)
find_package(Boost "1.35" COMPONENTS ${BOOST_REQUIRED_COMPONENTS})
endif(ENABLE_SRSUE OR ENABLE_SRSENB)
# srsGUI
if(ENABLE_GUI)
find_package(SRSGUI)
if(SRSGUI_FOUND)
@ -162,6 +189,7 @@ if(ENABLE_GUI)
endif(SRSGUI_FOUND)
endif(ENABLE_GUI)
# VOLK
include(CheckFunctionExistsMath)
if(ENABLE_VOLK)
find_package(Volk)
@ -176,7 +204,6 @@ else(ENABLE_VOLK)
message(STATUS "VOLK library disabled")
endif(ENABLE_VOLK)
########################################################################
# Install Dirs
########################################################################

2
CTestCustom.cmake.in
View File

@ -7,7 +7,7 @@ SET(CTEST_CUSTOM_MEMCHECK_IGNORE
realplot_test
complexplot_test
# Ignore these to, they take too lonk
# Ignore these to, they take too long
fft_normal
fft_extened
chest_test_all_cellids

15
cmake/modules/FindFFTW3F.cmake
View File

@ -15,6 +15,12 @@ find_path(FFTW3F_INCLUDE_DIR
PATHS /usr/local/include
/usr/include )
find_library(FFTW3F_STATIC_LIBRARY
NAMES fftw3f.a libfftw3f.a libfftw3f-3.a
HINTS ${PC_FFTW3F_LIBDIR} ${PC_FFTW3F_LIBRARY_DIRS} $ENV{FFTW3_DIR}/lib
PATHS /usr/local/lib
/usr/lib)
find_library(FFTW3F_LIBRARY
NAMES fftw3f libfftw3f libfftw3f-3
HINTS ${PC_FFTW3F_LIBDIR} ${PC_FFTW3F_LIBRARY_DIRS} $ENV{FFTW3_DIR}/lib
@ -22,12 +28,17 @@ find_library(FFTW3F_LIBRARY
/usr/lib)
set(FFTW3F_LIBRARIES ${FFTW3F_LIBRARY} )
set(FFTW3F_STATIC_LIBRARIES ${FFTW3F_STATIC_LIBRARY} )
set(FFTW3F_INCLUDE_DIRS ${FFTW3F_INCLUDE_DIR} )
message(STATUS "FFTW3F LIBRARIES: " ${FFTW3F_LIBRARIES})
message(STATUS "FFTW3F STATIC LIBRARIES: " ${FFTW3F_STATIC_LIBRARIES})
message(STATUS "FFTW3F INCLUDE DIRS: " ${FFTW3F_INCLUDE_DIRS})
include(FindPackageHandleStandardArgs)
# handle the QUIETLY and REQUIRED arguments and set FFTW3F_FOUND to TRUE
# if all listed variables are TRUE
find_package_handle_standard_args(fftw3f DEFAULT_MSG
FFTW3F_LIBRARY FFTW3F_INCLUDE_DIR)
FFTW3F_LIBRARY FFTW3F_STATIC_LIBRARY FFTW3F_INCLUDE_DIR)
mark_as_advanced(FFTW3F_INCLUDE_DIR FFTW3F_LIBRARY )
mark_as_advanced(FFTW3F_INCLUDE_DIR FFTW3F_STATIC_LIBRARY FFTW3F_LIBRARY )

2
cmake/modules/FindPolarssl.cmake
View File

@ -49,5 +49,5 @@ message(STATUS "POLARSSL STATIC LIBRARIES: " ${POLARSSL_STATIC_LIBRARIES})
message(STATUS "POLARSSL INCLUDE DIRS: " ${POLARSSL_INCLUDE_DIRS})
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(POLARSSL DEFAULT_MSG POLARSSL_LIBRARIES POLARSSL_STATIC_LIBRARIES POLARSSL_INCLUDE_DIRS)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(POLARSSL DEFAULT_MSG POLARSSL_LIBRARIES POLARSSL_INCLUDE_DIRS)
MARK_AS_ADVANCED(POLARSSL_STATIC_LIBRARIES POLARSSL_LIBRARIES POLARSSL_INCLUDE_DIRS)

2
lib/examples/CMakeLists.txt
View File

@ -65,7 +65,7 @@ if(RF_FOUND)
add_executable(cell_search cell_search.c)
target_link_libraries(cell_search srslte_phy srslte_rf)
add_executable(cell_measurement cell_measurement.c ../include/srslte/common/logger_stdout.h)
add_executable(cell_measurement cell_measurement.c)
target_link_libraries(cell_measurement srslte_phy srslte_rf)
add_executable(usrp_capture usrp_capture.c)

3
lib/include/srslte/common/buffer_pool.h
View File

@ -156,6 +156,9 @@ public:
return pool->allocate(debug_name);
}
void deallocate(byte_buffer_t *b) {
if(!b) {
return;
}
b->reset();
pool->deallocate(b);
}

26
lib/include/srslte/common/common.h
View File

@ -83,32 +83,6 @@ static const char error_text[ERROR_N_ITEMS][20] = { "None",
"Can't start",
"Already started"};
typedef enum{
RB_ID_SRB0 = 0,
RB_ID_SRB1,
RB_ID_SRB2,
RB_ID_DRB1,
RB_ID_DRB2,
RB_ID_DRB3,
RB_ID_DRB4,
RB_ID_DRB5,
RB_ID_DRB6,
RB_ID_DRB7,
RB_ID_DRB8,
RB_ID_N_ITEMS,
}rb_id_t;
static const char rb_id_text[RB_ID_N_ITEMS][20] = { "SRB0",
"SRB1",
"SRB2",
"DRB1",
"DRB2",
"DRB3",
"DRB4",
"DRB5",
"DRB6",
"DRB7",
"DRB8"};
/******************************************************************************
* Byte and Bit buffers
*

34
lib/include/srslte/common/interfaces_common.h
View File

@ -28,9 +28,43 @@
#define INTERFACE_COMMON_H
#include "srslte/common/timers.h"
#include "srslte/common/security.h"
#include "srslte/asn1/liblte_rrc.h"
namespace srslte {
class srslte_nas_config_t
{
public:
srslte_nas_config_t(uint32_t lcid_ = 0)
:lcid(lcid_)
{}
uint32_t lcid;
};
class srslte_pdcp_config_t
{
public:
srslte_pdcp_config_t(bool is_control_ = false, bool is_data_ = false, uint8_t direction_ = SECURITY_DIRECTION_UPLINK)
:direction(direction_)
,is_control(is_control_)
,is_data(is_data_)
,do_security(false)
,sn_len(12) {}
uint8_t direction;
bool is_control;
bool is_data;
bool do_security;
uint8_t sn_len;
// TODO: Support the following configurations
// bool do_rohc;
};
class mac_interface_timers
{
public:

3
lib/include/srslte/common/metrics_hub.h
View File

@ -34,6 +34,7 @@ public:
bool init(metrics_interface<metrics_t> *m_, float report_period_secs=1.0) {
m = m_;
start_periodic(report_period_secs*1e6);
return true;
}
void stop() {
thread_cancel();
@ -47,7 +48,7 @@ private:
void run_period() {
metrics_t metric;
m->get_metrics(metric);
for (int i=0;i<listeners.size();i++) {
for (uint32_t i=0;i<listeners.size();i++) {
listeners[i]->set_metrics(metric);
}
}

39
lib/include/srslte/common/timers.h
View File

@ -97,11 +97,13 @@ public:
bool running;
};
timers(uint32_t nof_timers_) : timer_list(nof_timers_) {
timers(uint32_t nof_timers_) : timer_list(nof_timers_),used_timers(nof_timers_) {
nof_timers = nof_timers_;
next_timer = 0;
nof_used_timers = 0;
for (uint32_t i=0;i<nof_timers;i++) {
timer_list[i].id = i;
timer_list[i].id = i;
used_timers[i] = false;
}
}
@ -133,17 +135,36 @@ public:
return NULL;
}
}
uint32_t get_unique_id() {
if (next_timer == nof_timers){
printf("No more unique timer ids (Only %d timers available)\n", nof_timers);
next_timer = 0;
void release_id(uint32_t i) {
if (nof_used_timers > 0 && i < nof_timers) {
used_timers[i] = false;
nof_used_timers--;
} else {
fprintf(stderr, "Error releasing timer: nof_used_timers=%d, nof_timers=%d\n", nof_used_timers, nof_timers);
}
}
uint32_t get_unique_id() {
if (nof_used_timers >= nof_timers) {
fprintf(stderr, "Error getting uinque timer id: no more timers available\n");
return 0;
} else {
while(used_timers[next_timer]) {
next_timer++;
if (next_timer >= nof_timers) {
next_timer=0;
}
}
used_timers[next_timer] = true;
nof_used_timers++;
return next_timer;
}
return next_timer++;
}
private:
uint32_t nof_timers;
uint32_t next_timer;
std::vector<timer> timer_list;
uint32_t nof_used_timers;
uint32_t nof_timers;
std::vector<timer> timer_list;
std::vector<bool> used_timers;
};
} // namespace srslte

6
lib/include/srslte/interfaces/enb_interfaces.h
View File

@ -28,7 +28,9 @@
#include "srslte/common/common.h"
#include "srslte/common/security.h"
#include "srslte/common/interfaces_common.h"
#include "srslte/interfaces/sched_interface.h"
#include "srslte/upper/rlc_interface.h"
#include "srslte/asn1/liblte_rrc.h"
#include "srslte/asn1/liblte_s1ap.h"
@ -156,7 +158,7 @@ public:
virtual void add_user(uint16_t rnti) = 0;
virtual void rem_user(uint16_t rnti) = 0;
virtual void add_bearer(uint16_t rnti, uint32_t lcid) = 0;
virtual void add_bearer(uint16_t rnti, uint32_t lcid, LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg) = 0;
virtual void add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_rlc_config_t cnfg) = 0;
};
// PDCP interface for GTPU
@ -174,7 +176,7 @@ public:
virtual void add_user(uint16_t rnti) = 0;
virtual void rem_user(uint16_t rnti) = 0;
virtual void write_sdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t *sdu) = 0;
virtual void add_bearer(uint16_t rnti, uint32_t lcid, LIBLTE_RRC_PDCP_CONFIG_STRUCT *cnfg=NULL) = 0;
virtual void add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_pdcp_config_t cnfg) = 0;
virtual void config_security(uint16_t rnti,
uint32_t lcid,
uint8_t *k_rrc_enc_,

5
lib/include/srslte/interfaces/sched_interface.h
View File

@ -94,7 +94,8 @@ public:
typedef struct {
int priority;
int bsd;
int pbr;
int pbr;
int group;
enum {IDLE = 0, UL, DL, BOTH} direction;
} ue_bearer_cfg_t;
@ -231,7 +232,7 @@ public:
/* UL information */
virtual int ul_crc_info(uint32_t tti, uint16_t rnti, bool crc) = 0;
virtual int ul_sr_info(uint32_t tti, uint16_t rnti) = 0;
virtual int ul_bsr(uint16_t rnti, uint32_t lcid, uint32_t bsr) = 0;
virtual int ul_bsr(uint16_t rnti, uint32_t lcid, uint32_t bsr, bool set_value = true) = 0;
virtual int ul_recv_len(uint16_t rnti, uint32_t lcid, uint32_t len) = 0;
virtual int ul_phr(uint16_t rnti, int phr) = 0;
virtual int ul_cqi_info(uint32_t tti, uint16_t rnti, uint32_t cqi, uint32_t ul_ch_code) = 0;

122
lib/include/srslte/interfaces/ue_interfaces.h
View File

@ -39,6 +39,7 @@
#include "srslte/common/interfaces_common.h"
#include "srslte/common/common.h"
#include "srslte/common/security.h"
#include "srslte/upper/rlc_interface.h"
namespace srsue {
@ -113,11 +114,16 @@ public:
};
// RRC interface for MAC
class rrc_interface_mac
class rrc_interface_mac_common
{
public:
virtual void ra_problem() = 0;
};
class rrc_interface_mac : public rrc_interface_mac_common
{
public:
virtual void release_pucch_srs() = 0;
virtual void ra_problem() = 0;
};
// RRC interface for PHY
@ -139,7 +145,7 @@ public:
virtual void enable_capabilities() = 0;
virtual void plmn_search() = 0;
virtual void plmn_select(LIBLTE_RRC_PLMN_IDENTITY_STRUCT plmn_id) = 0;
virtual std::string get_rb_name(uint32_t lcid) = 0;
};
// RRC interface for PDCP
@ -150,6 +156,7 @@ public:
virtual void write_pdu_bcch_bch(srslte::byte_buffer_t *pdu) = 0;
virtual void write_pdu_bcch_dlsch(srslte::byte_buffer_t *pdu) = 0;
virtual void write_pdu_pcch(srslte::byte_buffer_t *pdu) = 0;
virtual std::string get_rb_name(uint32_t lcid) = 0;
};
// RRC interface for RLC
@ -157,6 +164,7 @@ class rrc_interface_rlc
{
public:
virtual void max_retx_attempted() = 0;
virtual std::string get_rb_name(uint32_t lcid) = 0;
};
// PDCP interface for GW
@ -172,7 +180,7 @@ class pdcp_interface_rrc
public:
virtual void reset() = 0;
virtual void write_sdu(uint32_t lcid, srslte::byte_buffer_t *sdu) = 0;
virtual void add_bearer(uint32_t lcid, LIBLTE_RRC_PDCP_CONFIG_STRUCT *cnfg=NULL) = 0;
virtual void add_bearer(uint32_t lcid, srslte::srslte_pdcp_config_t cnfg = srslte::srslte_pdcp_config_t()) = 0;
virtual void config_security(uint32_t lcid,
uint8_t *k_rrc_enc_,
uint8_t *k_rrc_int_,
@ -197,7 +205,7 @@ class rlc_interface_rrc
public:
virtual void reset() = 0;
virtual void add_bearer(uint32_t lcid) = 0;
virtual void add_bearer(uint32_t lcid, LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg) = 0;
virtual void add_bearer(uint32_t lcid, srslte::srslte_rlc_config_t cnfg) = 0;
};
// RLC interface for PDCP
@ -234,6 +242,31 @@ public:
};
//BSR interface for MUX
class bsr_interface_mux
{
public:
typedef enum {
LONG_BSR,
SHORT_BSR,
TRUNC_BSR
} bsr_format_t;
typedef struct {
bsr_format_t format;
uint32_t buff_size[4];
} bsr_t;
/* MUX calls BSR to check if it can fit a BSR into PDU */
virtual bool need_to_send_bsr_on_ul_grant(uint32_t grant_size, bsr_t *bsr) = 0;
/* MUX calls BSR to let it generate a padding BSR if there is space in PDU */
virtual bool generate_padding_bsr(uint32_t nof_padding_bytes, bsr_t *bsr) = 0;
/* MAX calls BSR to set the Tx TTI */
virtual void set_tx_tti(uint32_t tti) = 0;
};
/** MAC interface
*
@ -279,6 +312,7 @@ public:
uint32_t rv;
uint16_t rnti;
uint32_t current_tx_nb;
int32_t tti_offset; // relative offset between grant and UL tx/HARQ rx
srslte_softbuffer_tx_t *softbuffer;
srslte_phy_grant_t phy_grant;
uint8_t *payload_ptr;
@ -313,9 +347,27 @@ public:
};
/* Interface RRC -> MAC shared between different RATs */
class mac_interface_rrc_common
{
public:
// Class to handle UE specific RNTIs between RRC and MAC
typedef struct {
uint16_t crnti;
uint16_t temp_rnti;
uint16_t tpc_rnti;
uint16_t sps_rnti;
uint64_t contention_id;
} ue_rnti_t;
typedef struct {
uint32_t max_harq_msg3_tx;
uint32_t max_harq_tx;
} ul_harq_params_t;
};
/* Interface RRC -> MAC */
class mac_interface_rrc
class mac_interface_rrc : public mac_interface_rrc_common
{
public:
@ -323,19 +375,10 @@ public:
LIBLTE_RRC_MAC_MAIN_CONFIG_STRUCT main;
LIBLTE_RRC_RACH_CONFIG_COMMON_STRUCT rach;
LIBLTE_RRC_SCHEDULING_REQUEST_CONFIG_STRUCT sr;
ul_harq_params_t ul_harq_params;
uint32_t prach_config_index;
} mac_cfg_t;
// Class to handle UE specific RNTIs between RRC and MAC
typedef struct {
uint16_t crnti;
uint16_t temp_rnti;
uint16_t tpc_rnti;
uint16_t sps_rnti;
uint64_t contention_id;
} ue_rnti_t;
/* Instructs the MAC to start receiving BCCH */
virtual void bcch_start_rx() = 0;
virtual void bcch_stop_rx() = 0;
@ -395,45 +438,50 @@ typedef struct {
float estimator_fil_w;
bool rssi_sensor_enabled;
} phy_args_t;
/* Interface MAC -> PHY */
class phy_interface_mac
/* RAT agnostic Interface MAC -> PHY */
class phy_interface_mac_common
{
public:
/* Configure PRACH using parameters written by RRC */
virtual void configure_prach_params() = 0;
/* Start synchronization with strongest cell in the current carrier frequency */
virtual bool sync_status() = 0;
/* Sets a C-RNTI allowing the PHY to pregenerate signals if necessary */
virtual void set_crnti(uint16_t rnti) = 0;
virtual void set_crnti(uint16_t rnti) = 0;
/* Time advance commands */
virtual void set_timeadv_rar(uint32_t ta_cmd) = 0;
virtual void set_timeadv(uint32_t ta_cmd) = 0;
/* Sets RAR grant payload */
virtual void set_rar_grant(uint32_t tti, uint8_t grant_payload[SRSLTE_RAR_GRANT_LEN]) = 0;
virtual uint32_t get_current_tti() = 0;
virtual float get_phr() = 0;
virtual float get_pathloss_db() = 0;
};
/* Interface MAC -> PHY */
class phy_interface_mac : public phy_interface_mac_common
{
public:
/* Configure PRACH using parameters written by RRC */
virtual void configure_prach_params() = 0;
virtual void prach_send(uint32_t preamble_idx, int allowed_subframe, float target_power_dbm) = 0;
virtual int prach_tx_tti() = 0;
/* Indicates the transmission of a SR signal in the next opportunity */
virtual void sr_send() = 0;
virtual int sr_last_tx_tti() = 0;
/* Time advance commands */
virtual void set_timeadv_rar(uint32_t ta_cmd) = 0;
virtual void set_timeadv(uint32_t ta_cmd) = 0;
/* Sets RAR grant payload */
virtual void set_rar_grant(uint32_t tti, uint8_t grant_payload[SRSLTE_RAR_GRANT_LEN]) = 0;
/* Instruct the PHY to decode PDCCH with the CRC scrambled with given RNTI */
virtual void pdcch_ul_search(srslte_rnti_type_t rnti_type, uint16_t rnti, int tti_start = -1, int tti_end = -1) = 0;
virtual void pdcch_dl_search(srslte_rnti_type_t rnti_type, uint16_t rnti, int tti_start = -1, int tti_end = -1) = 0;
virtual void pdcch_ul_search_reset() = 0;
virtual void pdcch_dl_search_reset() = 0;
virtual uint32_t get_current_tti() = 0;
virtual float get_phr() = 0;
virtual float get_pathloss_db() = 0;
};
class phy_interface_rrc

3
lib/include/srslte/phy/common/phy_common.h
View File

@ -242,6 +242,9 @@ SRSLTE_API uint32_t srslte_N_ta_new_rar(uint32_t ta);
SRSLTE_API uint32_t srslte_N_ta_new(uint32_t N_ta_old,
uint32_t ta);
SRSLTE_API float srslte_coderate(uint32_t tbs,
uint32_t nof_re);
SRSLTE_API char *srslte_cp_string(srslte_cp_t cp);
SRSLTE_API char *srslte_mod_string(srslte_mod_t mod);

4
lib/include/srslte/phy/fec/turbodecoder_simd.h
View File

@ -48,13 +48,13 @@
// The constant SRSLTE_TDEC_NPAR defines the maximum number of parallel CB supported by all SIMD decoders
#ifdef ENABLE_SIMD_INTER
#include "srslte/phy/fec/turbodecoder_simd_inter.h"
#if LV_HAVE_AVX2
#ifdef LV_HAVE_AVX2
#define SRSLTE_TDEC_NPAR_INTRA 2
#else
#define SRSLTE_TDEC_NPAR_INTRA 1
#endif
#else
#if LV_HAVE_AVX2
#ifdef LV_HAVE_AVX2
#define SRSLTE_TDEC_NPAR 2
#else
#define SRSLTE_TDEC_NPAR 1

5
lib/include/srslte/phy/phch/pdsch.h
View File

@ -107,10 +107,7 @@ SRSLTE_API int srslte_pdsch_set_rnti(srslte_pdsch_t *q,
SRSLTE_API void srslte_pdsch_free_rnti(srslte_pdsch_t *q,
uint16_t rnti);
SRSLTE_API float srslte_pdsch_coderate(uint32_t tbs,
uint32_t nof_re);
SRSLTE_API int srslte_pdsch_cfg(srslte_pdsch_cfg_t *cfg,
SRSLTE_API int srslte_pdsch_cfg(srslte_pdsch_cfg_t *cfg,
srslte_cell_t cell,
srslte_ra_dl_grant_t *grant,
uint32_t cfi,

6
lib/include/srslte/phy/phch/pucch.h
View File

@ -108,7 +108,6 @@ typedef struct SRSLTE_API {
bool group_hopping_en;
float threshold_format1;
float threshold_format1a;
float last_corr;
uint32_t last_n_prb;
uint32_t last_n_pucch;
@ -127,9 +126,8 @@ SRSLTE_API bool srslte_pucch_set_cfg(srslte_pucch_t* q,
srslte_pucch_cfg_t* cfg,
bool group_hopping_en);
SRSLTE_API void srslte_pucch_set_threshold(srslte_pucch_t *q,
float format1,
float format1a);
SRSLTE_API void srslte_pucch_set_threshold(srslte_pucch_t *q,
float format1_threshold);
SRSLTE_API int srslte_pucch_set_crnti(srslte_pucch_t *q,
uint16_t c_rnti);

2
lib/include/srslte/phy/phch/pusch.h
View File

@ -63,7 +63,7 @@ typedef struct {
typedef struct {
srslte_sequence_t seq[SRSLTE_NSUBFRAMES_X_FRAME];
bool sequence_generated;
} srslte_pusch_user_t;
} srslte_pusch_user_t;
/* PUSCH object */
typedef struct SRSLTE_API {

3
lib/include/srslte/phy/utils/vector.h
View File

@ -152,6 +152,9 @@ SRSLTE_API void srslte_vec_conj_cc(cf_t *x, cf_t *y, uint32_t len);
/* average vector power */
SRSLTE_API float srslte_vec_avg_power_cf(cf_t *x, uint32_t len);
/* Correlation between complex vectors x and y */
SRSLTE_API float srslte_vec_corr_ccc(cf_t *x, cf_t *y, uint32_t len);
/* return the index of the maximum value in the vector */
SRSLTE_API uint32_t srslte_vec_max_fi(float *x, uint32_t len);
SRSLTE_API uint32_t srslte_vec_max_abs_ci(cf_t *x, uint32_t len);

11
lib/include/srslte/upper/gw.h
View File

@ -46,7 +46,7 @@ class gw
{
public:
gw();
void init(srsue::pdcp_interface_gw *pdcp_, srsue::ue_interface *ue_, log *gw_log_);
void init(srsue::pdcp_interface_gw *pdcp_, srsue::ue_interface *ue_, log *gw_log_, uint32_t lcid_);
void stop();
void get_metrics(gw_metrics_t &m);
@ -56,11 +56,11 @@ public:
// NAS interface
error_t setup_if_addr(uint32_t ip_addr, char *err_str);
private:
static const int GW_THREAD_PRIO = 7;
static const int GW_THREAD_PRIO = 7;
srsue::pdcp_interface_gw *pdcp;
srsue::ue_interface *ue;
@ -72,6 +72,7 @@ private:
struct ifreq ifr;
int32 sock;
bool if_up;
uint32_t lcid;
long ul_tput_bytes;
long dl_tput_bytes;

4
lib/include/srslte/upper/pdcp.h
View File

@ -46,13 +46,14 @@ public:
srsue::rrc_interface_pdcp *rrc_,
srsue::gw_interface_pdcp *gw_,
log *pdcp_log_,
uint32_t lcid_,
uint8_t direction_);
void stop();
// RRC interface
void reset();
void write_sdu(uint32_t lcid, byte_buffer_t *sdu);
void add_bearer(uint32_t lcid, LIBLTE_RRC_PDCP_CONFIG_STRUCT *cnfg = NULL);
void add_bearer(uint32_t lcid, srslte_pdcp_config_t cnfg = srslte_pdcp_config_t());
void config_security(uint32_t lcid,
uint8_t *k_rrc_enc,
uint8_t *k_rrc_int,
@ -72,6 +73,7 @@ private:
log *pdcp_log;
pdcp_entity pdcp_array[SRSLTE_N_RADIO_BEARERS];
uint32_t lcid; // default LCID that is maintained active by PDCP instance
uint8_t direction;
bool valid_lcid(uint32_t lcid);

11
lib/include/srslte/upper/pdcp_entity.h
View File

@ -67,9 +67,7 @@ public:
srsue::gw_interface_pdcp *gw_,
srslte::log *log_,
uint32_t lcid_,
uint8_t direction_,
LIBLTE_RRC_PDCP_CONFIG_STRUCT *cnfg = NULL
);
srslte_pdcp_config_t cfg_);
void reset();
bool is_active();
@ -94,12 +92,7 @@ private:
bool active;
uint32_t lcid;
bool do_security;
u_int8_t direction;
uint8_t sn_len;
// TODO: Support the following configurations
// bool do_rohc;
srslte_pdcp_config_t cfg;
uint32_t rx_count;
uint32_t tx_count;

9
lib/include/srslte/upper/rlc.h
View File

@ -34,6 +34,7 @@
#include "srslte/common/msg_queue.h"
#include "srslte/upper/rlc_entity.h"
#include "srslte/upper/rlc_metrics.h"
#include "srslte/upper/rlc_common.h"
namespace srslte {
@ -55,13 +56,15 @@ public:
srsue::rrc_interface_rlc *rrc_,
srsue::ue_interface *ue_,
log *rlc_log_,
mac_interface_timers *mac_timers_);
mac_interface_timers *mac_timers_,
uint32_t lcid_);
void stop();
void get_metrics(rlc_metrics_t &m);
// PDCP interface
void write_sdu(uint32_t lcid, byte_buffer_t *sdu);
std::string get_rb_name(uint32_t lcid);
// MAC interface
uint32_t get_buffer_state(uint32_t lcid);
@ -74,8 +77,9 @@ public:
// RRC interface
void reset();
void empty_queue();
void add_bearer(uint32_t lcid);
void add_bearer(uint32_t lcid, LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg);
void add_bearer(uint32_t lcid, srslte_rlc_config_t cnfg);
private:
void reset_metrics();
@ -87,6 +91,7 @@ private:
srslte::mac_interface_timers *mac_timers;
srsue::ue_interface *ue;
srslte::rlc_entity rlc_array[SRSLTE_N_RADIO_BEARERS];
uint32_t default_lcid;
long ul_tput_bytes[SRSLTE_N_RADIO_BEARERS];
long dl_tput_bytes[SRSLTE_N_RADIO_BEARERS];

12
lib/include/srslte/upper/rlc_am.h
View File

@ -76,7 +76,7 @@ public:
srsue::pdcp_interface_rlc *pdcp_,
srsue::rrc_interface_rlc *rrc_,
mac_interface_timers *mac_timers);
void configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg);
void configure(srslte_rlc_config_t cnfg);
void reset();
void empty_queue();
@ -128,15 +128,7 @@ private:
* Ref: 3GPP TS 36.322 v10.0.0 Section 7
***************************************************************************/
// TX configs
int32_t t_poll_retx; // Poll retx timeout (ms)
int32_t poll_pdu; // Insert poll bit after this many PDUs
int32_t poll_byte; // Insert poll bit after this much data (KB)
uint32_t max_retx_thresh; // Max number of retx
// RX configs
int32_t t_reordering; // Timer used by rx to detect PDU loss (ms)
int32_t t_status_prohibit; // Timer used by rx to prohibit tx of status PDU (ms)
srslte_rlc_am_config_t cfg;
/****************************************************************************
* State variables and counters

12
lib/include/srslte/upper/rlc_common.h
View File

@ -27,6 +27,8 @@
#ifndef RLC_COMMON_H
#define RLC_COMMON_H
#include "srslte/upper/rlc_interface.h"
namespace srslte {
/****************************************************************************
@ -66,14 +68,6 @@ typedef enum{
static const char rlc_dc_field_text[RLC_DC_FIELD_N_ITEMS][20] = {"Control PDU",
"Data PDU"};
typedef enum{
RLC_UMD_SN_SIZE_5_BITS = 0,
RLC_UMD_SN_SIZE_10_BITS,
RLC_UMD_SN_SIZE_N_ITEMS,
}rlc_umd_sn_size_t;
static const char rlc_umd_sn_size_text[RLC_UMD_SN_SIZE_N_ITEMS][20] = {"5 bits", "10 bits"};
static const uint16_t rlc_umd_sn_size_num[RLC_UMD_SN_SIZE_N_ITEMS] = {5, 10};
// UMD PDU Header
typedef struct{
uint8_t fi; // Framing info
@ -162,7 +156,7 @@ public:
srsue::pdcp_interface_rlc *pdcp_,
srsue::rrc_interface_rlc *rrc_,
srslte::mac_interface_timers *mac_timers_) = 0;
virtual void configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg) = 0;
virtual void configure(srslte_rlc_config_t cnfg) = 0;
virtual void reset() = 0;
virtual void empty_queue() = 0;

3
lib/include/srslte/upper/rlc_entity.h
View File

@ -54,8 +54,9 @@ public:
srsue::rrc_interface_rlc *rrc_,
mac_interface_timers *mac_timers_);
void configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg);
void configure(srslte_rlc_config_t cnfg);
void reset();
void empty_queue();
bool active();
rlc_mode_t get_mode();

126
lib/include/srslte/upper/rlc_interface.h Normal file
View File

@ -0,0 +1,126 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsUE library.
*
* srsUE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsUE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef RLC_INTERFACE_H
#define RLC_INTERFACE_H
// for custom constructors
#include "srslte/asn1/liblte_rrc.h"
namespace srslte {
typedef enum{
RLC_UMD_SN_SIZE_5_BITS = 0,
RLC_UMD_SN_SIZE_10_BITS,
RLC_UMD_SN_SIZE_N_ITEMS,
}rlc_umd_sn_size_t;
static const char rlc_umd_sn_size_text[RLC_UMD_SN_SIZE_N_ITEMS][20] = {"5 bits", "10 bits"};
static const uint16_t rlc_umd_sn_size_num[RLC_UMD_SN_SIZE_N_ITEMS] = {5, 10};
typedef struct {
/****************************************************************************
* Configurable parameters
* Ref: 3GPP TS 36.322 v10.0.0 Section 7
***************************************************************************/
// TX configs
int32_t t_poll_retx; // Poll retx timeout (ms)
int32_t poll_pdu; // Insert poll bit after this many PDUs
int32_t poll_byte; // Insert poll bit after this much data (KB)
uint32_t max_retx_thresh; // Max number of retx
// RX configs
int32_t t_reordering; // Timer used by rx to detect PDU loss (ms)
int32_t t_status_prohibit; // Timer used by rx to prohibit tx of status PDU (ms)
} srslte_rlc_am_config_t;
typedef struct {
/****************************************************************************
* Configurable parameters
* Ref: 3GPP TS 36.322 v10.0.0 Section 7
***************************************************************************/
int32_t t_reordering; // Timer used by rx to detect PDU loss (ms)
rlc_umd_sn_size_t tx_sn_field_length; // Number of bits used for tx (UL) sequence number
rlc_umd_sn_size_t rx_sn_field_length; // Number of bits used for rx (DL) sequence number
uint32_t rx_window_size;
uint32_t rx_mod; // Rx counter modulus
uint32_t tx_mod; // Tx counter modulus
} srslte_rlc_um_config_t;
class srslte_rlc_config_t
{
public:
LIBLTE_RRC_RLC_MODE_ENUM rlc_mode;
srslte_rlc_am_config_t am;
srslte_rlc_um_config_t um;
// Constructor based on liblte's RLC config
srslte_rlc_config_t(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg) : rlc_mode(cnfg->rlc_mode), am(), um()
{
switch(rlc_mode)
{
case LIBLTE_RRC_RLC_MODE_AM:
am.t_poll_retx = liblte_rrc_t_poll_retransmit_num[cnfg->ul_am_rlc.t_poll_retx];
am.poll_pdu = liblte_rrc_poll_pdu_num[cnfg->ul_am_rlc.poll_pdu];
am.poll_byte = liblte_rrc_poll_byte_num[cnfg->ul_am_rlc.poll_byte]*1000; // KB
am.max_retx_thresh = liblte_rrc_max_retx_threshold_num[cnfg->ul_am_rlc.max_retx_thresh];
am.t_reordering = liblte_rrc_t_reordering_num[cnfg->dl_am_rlc.t_reordering];
am.t_status_prohibit = liblte_rrc_t_status_prohibit_num[cnfg->dl_am_rlc.t_status_prohibit];
break;
case LIBLTE_RRC_RLC_MODE_UM_BI:
um.t_reordering = liblte_rrc_t_reordering_num[cnfg->dl_um_bi_rlc.t_reordering];
um.rx_sn_field_length = (rlc_umd_sn_size_t)cnfg->dl_um_bi_rlc.sn_field_len;
um.rx_window_size = (RLC_UMD_SN_SIZE_5_BITS == um.rx_sn_field_length) ? 16 : 512;
um.rx_mod = (RLC_UMD_SN_SIZE_5_BITS == um.rx_sn_field_length) ? 32 : 1024;
um.tx_sn_field_length = (rlc_umd_sn_size_t)cnfg->ul_um_bi_rlc.sn_field_len;
um.tx_mod = (RLC_UMD_SN_SIZE_5_BITS == um.tx_sn_field_length) ? 32 : 1024;
break;
case LIBLTE_RRC_RLC_MODE_UM_UNI_UL:
um.tx_sn_field_length = (rlc_umd_sn_size_t)cnfg->ul_um_uni_rlc.sn_field_len;
um.tx_mod = (RLC_UMD_SN_SIZE_5_BITS == um.tx_sn_field_length) ? 32 : 1024;
break;
case LIBLTE_RRC_RLC_MODE_UM_UNI_DL:
um.t_reordering = liblte_rrc_t_reordering_num[cnfg->dl_um_uni_rlc.t_reordering];
um.rx_sn_field_length = (rlc_umd_sn_size_t)cnfg->dl_um_uni_rlc.sn_field_len;
um.rx_window_size = (RLC_UMD_SN_SIZE_5_BITS == um.rx_sn_field_length) ? 16 : 512;
um.rx_mod = (RLC_UMD_SN_SIZE_5_BITS == um.rx_sn_field_length) ? 32 : 1024;
break;
default:
// Handle default case
break;
}
}
};
} // namespace srslte
#endif // RLC_INTERFACE_H

2
lib/include/srslte/upper/rlc_tm.h
View File

@ -46,7 +46,7 @@ public:
srsue::pdcp_interface_rlc *pdcp_,
srsue::rrc_interface_rlc *rrc_,
mac_interface_timers *mac_timers);
void configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg);
void configure(srslte_rlc_config_t cnfg);
void reset();
void empty_queue();

9
lib/include/srslte/upper/rlc_um.h
View File

@ -56,7 +56,7 @@ public:
srsue::pdcp_interface_rlc *pdcp_,
srsue::rrc_interface_rlc *rrc_,
mac_interface_timers *mac_timers_);
void configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg);
void configure(srslte_rlc_config_t cnfg);
void reset();
void empty_queue();
@ -92,9 +92,6 @@ private:
// Rx window
std::map<uint32_t, rlc_umd_pdu_t> rx_window;
uint32_t rx_window_size;
uint32_t rx_mod; // Rx counter modulus
uint32_t tx_mod; // Tx counter modulus
// RX SDU buffers
byte_buffer_t *rx_sdu;
@ -108,9 +105,7 @@ private:
* Ref: 3GPP TS 36.322 v10.0.0 Section 7
***************************************************************************/
int32_t t_reordering; // Timer used by rx to detect PDU loss (ms)
rlc_umd_sn_size_t tx_sn_field_length; // Number of bits used for tx (UL) sequence number
rlc_umd_sn_size_t rx_sn_field_length; // Number of bits used for rx (DL) sequence number
srslte_rlc_um_config_t cfg;
/****************************************************************************
* State variables and counters

9
lib/src/asn1/liblte_rrc.cc
View File

@ -2006,6 +2006,7 @@ LIBLTE_ERROR_ENUM liblte_rrc_pack_meas_object_eutra_ie(LIBLTE_RRC_MEAS_OBJECT_EU
liblte_value_2_bits(0, ie_ptr, 1);
// Optional indicators
liblte_value_2_bits(meas_obj_eutra->offset_freq_not_default, ie_ptr, 1);
liblte_value_2_bits(meas_obj_eutra->cells_to_remove_list_present, ie_ptr, 1);
if(0 != meas_obj_eutra->N_cells_to_add_mod)
{
@ -2035,7 +2036,10 @@ LIBLTE_ERROR_ENUM liblte_rrc_pack_meas_object_eutra_ie(LIBLTE_RRC_MEAS_OBJECT_EU
liblte_rrc_pack_neigh_cell_config_ie(meas_obj_eutra->neigh_cell_cnfg, ie_ptr);
// Offset Freq
liblte_rrc_pack_q_offset_range_ie(meas_obj_eutra->offset_freq, ie_ptr);
if(meas_obj_eutra->offset_freq_not_default)
{
liblte_rrc_pack_q_offset_range_ie(meas_obj_eutra->offset_freq, ie_ptr);
}
// Cells To Remove List
if(meas_obj_eutra->cells_to_remove_list_present)
@ -2329,6 +2333,9 @@ LIBLTE_ERROR_ENUM liblte_rrc_pack_meas_object_to_add_mod_list_ie(LIBLTE_RRC_MEAS
// Meas Object ID
liblte_rrc_pack_meas_object_id_ie(list->meas_obj_list[i].meas_obj_id, ie_ptr);
// Meas Object Choice Extension
liblte_value_2_bits(0, ie_ptr, 1); // Choice from before extension marker
// Meas Object Choice
liblte_value_2_bits(list->meas_obj_list[i].meas_obj_type, ie_ptr, 2);

14
lib/src/common/pdu.cc
View File

@ -33,7 +33,7 @@
// Table 6.1.3.1-1 Buffer size levels for BSR
static uint32_t btable[64] = {
0, 5, 10, 12, 14, 17, 19, 22, 26, 31, 36, 42, 49, 57, 67, 78, 91, 107, 125, 146, 171, 200, 234, 274, 321, 376, 440, 515, 603, 706, 826, 967, 1132,
0, 1, 10, 12, 14, 17, 19, 22, 26, 31, 36, 42, 49, 57, 67, 78, 91, 107, 125, 146, 171, 200, 234, 274, 321, 376, 440, 515, 603, 706, 826, 967, 1132,
1326, 1552, 1817, 2127, 2490, 2915, 3413, 3995, 4667, 5476, 6411, 7505, 8787, 10287, 12043, 14099, 16507, 19325, 22624, 26487, 31009, 36304,
42502, 49759, 58255, 68201, 79846, 93479, 109439, 128125, 150000};
@ -428,12 +428,16 @@ int sch_subh::get_bsr(uint32_t buff_size[4])
buff_size[2] = (payload[1]&0x0F) << 4 | (payload[1]&0xC0) >> 6;
buff_size[3] = (payload[2]&0x3F);
} else {
uint32_t nonzero_lcg = (payload[0]&0xc0) >> 6;
nonzero_lcg = (payload[0]&0xc0) >> 6;
buff_size[nonzero_lcg%4] = payload[0]&0x3f;
}
for (int i=0;i<4;i++) {
if (buff_size[i]) {
buff_size[i] = btable[buff_size[i]%64];
if (buff_size[i]<63) {
buff_size[i] = btable[1+buff_size[i]];
} else {
buff_size[i] = btable[63];
}
}
}
return nonzero_lcg;
@ -515,8 +519,8 @@ bool sch_subh::set_bsr(uint32_t buff_size[4], sch_subh::cetype format)
bool sch_subh::set_c_rnti(uint16_t crnti)
{
if (((sch_pdu*)parent)->has_space_ce(2)) {
w_payload_ce[0] = (uint8_t) (crnti&0xff00)>>8;
w_payload_ce[1] = (uint8_t) (crnti&0x00ff);
w_payload_ce[0] = (uint8_t) ((crnti&0xff00)>>8);
w_payload_ce[1] = (uint8_t) ((crnti&0x00ff));
lcid = CRNTI;
((sch_pdu*)parent)->update_space_ce(2);
nof_bytes = 2;

27
lib/src/phy/CMakeLists.txt
View File

@ -55,32 +55,7 @@ set(srslte_srcs $<TARGET_OBJECTS:srslte_agc>
)
add_library(srslte_phy STATIC ${srslte_srcs})
set_target_properties(srslte_phy PROPERTIES
VERSION ${SRSLTE_VERSION_MAJOR}.${SRSLTE_VERSION_MINOR})
find_package(MKL)
if(MKL_FOUND)
include_directories(${MKL_INCLUDE_DIRS})
link_directories(${MKL_LIBRARY_DIRS})
else(MKL_FOUND)
find_package(FFTW3F REQUIRED)
if(FFTW3F_FOUND)
include_directories(${FFTW3F_INCLUDE_DIRS})
link_directories(${FFTW3F_LIBRARY_DIRS})
endif(FFTW3F_FOUND)
endif(MKL_FOUND)
if(MKL_FOUND)
if(BUILD_STATIC)
target_link_libraries(srslte_phy ${MKL_STATIC_LIBRARIES})
else(BUILD_STATIC)
target_link_libraries(srslte_phy ${MKL_LIBRARIES})
endif(BUILD_STATIC)
else(MKL_FOUND)
target_link_libraries(srslte_phy ${FFTW3F_LIBRARIES})
endif(MKL_FOUND)
target_link_libraries(srslte_phy ${FFT_LIBRARIES})
if(VOLK_FOUND)
target_link_libraries(srslte_phy ${VOLK_LIBRARIES})

5
lib/src/phy/common/phy_common.c
View File

@ -178,6 +178,11 @@ uint32_t srslte_N_ta_new(uint32_t N_ta_old, uint32_t ta) {
}
}
float srslte_coderate(uint32_t tbs, uint32_t nof_re)
{
return (float) (tbs + 24)/(nof_re);
}
/* Returns the new time advance as indicated by the random access response
* as specified in Section 4.2.3 of 36.213 */
uint32_t srslte_N_ta_new_rar(uint32_t ta) {

6
lib/src/phy/enb/enb_ul.c
View File

@ -73,8 +73,8 @@ int srslte_enb_ul_init(srslte_enb_ul_t *q,
goto clean_exit;
}
srslte_pucch_set_threshold(&q->pucch, 0.5, 0.5);
srslte_pucch_set_threshold(&q->pucch, 0.8);
if (srslte_chest_ul_init(&q->chest, max_prb)) {
fprintf(stderr, "Error initiating channel estimator\n");
goto clean_exit;
@ -174,8 +174,6 @@ int srslte_enb_ul_set_cell(srslte_enb_ul_t *q, srslte_cell_t cell,
srslte_prach_set_detect_factor(&q->prach, 60);
}
srslte_pucch_set_threshold(&q->pucch, 0.5, 0.5);
if (srslte_chest_ul_set_cell(&q->chest, cell)) {
fprintf(stderr, "Error initiating channel estimator\n");
return SRSLTE_ERROR;

4
lib/src/phy/fec/turbodecoder_gen.c
View File

@ -328,6 +328,9 @@ void srslte_tdec_gen_iteration(srslte_tdec_gen_t * h, float * input, uint32_t lo
} else {
fprintf(stderr, "Error CB index not set (call srslte_tdec_gen_reset() first\n");
}
// Increase number of iterations
h->n_iter++;
}
int srslte_tdec_gen_reset(srslte_tdec_gen_t * h, uint32_t long_cb)
@ -339,6 +342,7 @@ int srslte_tdec_gen_reset(srslte_tdec_gen_t * h, uint32_t long_cb)
}
memset(h->w, 0, sizeof(float) * long_cb);
h->current_cbidx = srslte_cbsegm_cbindex(long_cb);
h->current_cb_len = long_cb;
if (h->current_cbidx < 0) {
fprintf(stderr, "Invalid CB length %d\n", long_cb);
return -1;

23
lib/src/phy/phch/pdsch.c
View File

@ -27,20 +27,9 @@
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
#include <math.h>
#include <srslte/phy/phch/pdsch.h>
#include <srslte/phy/phch/pdsch_cfg.h>
#include <srslte/phy/phch/ra.h>
#include "prb_dl.h"
#include "srslte/phy/phch/pdsch.h"
#include "srslte/phy/phch/sch.h"
#include "srslte/phy/common/phy_common.h"
#include "srslte/phy/utils/bit.h"
#include "prb_dl.h"
#include "srslte/phy/utils/debug.h"
#include "srslte/phy/utils/vector.h"
@ -48,7 +37,6 @@
#define MAX_PDSCH_RE(cp) (2 * SRSLTE_CP_NSYMB(cp) * 12)
const static srslte_mod_t modulations[4] =
{ SRSLTE_MOD_BPSK, SRSLTE_MOD_QPSK, SRSLTE_MOD_16QAM, SRSLTE_MOD_64QAM };
@ -60,12 +48,7 @@ extern int indices[100000];
extern int indices_ptr;
#endif
float srslte_pdsch_coderate(uint32_t tbs, uint32_t nof_re)
{
return (float) (tbs + 24)/(nof_re);
}
int srslte_pdsch_cp(srslte_pdsch_t *q, cf_t *input, cf_t *output, srslte_ra_dl_grant_t *grant, uint32_t lstart_grant, uint32_t nsubframe, bool put)
int srslte_pdsch_cp(srslte_pdsch_t *q, cf_t *input, cf_t *output, srslte_ra_dl_grant_t *grant, uint32_t lstart_grant, uint32_t nsubframe, bool put)
{
uint32_t s, n, l, lp, lstart, lend, nof_refs;
bool is_pbch, is_sss;
@ -257,7 +240,7 @@ int pdsch_init_multi(srslte_pdsch_t *q, uint32_t max_prb, uint32_t nof_rx_antenn
}
}
}
for (int j=0;j<q->nof_rx_antennas;j++) {
for (int j=0;j<SRSLTE_MAX(q->nof_rx_antennas, q->cell.nof_ports);j++) {
q->symbols[j] = srslte_vec_malloc(sizeof(cf_t) * q->max_re);
if (!q->symbols[j]) {
goto clean;

35
lib/src/phy/phch/pucch.c
View File

@ -214,15 +214,15 @@ uint32_t srslte_pucch_get_npucch(uint32_t n_cce, srslte_pucch_format_t format, b
{
uint32_t n_pucch = 0;
if (has_scheduling_request) {
n_pucch = pucch_sched->n_pucch_sr;
n_pucch = pucch_sched->n_pucch_sr;
} else if (format < SRSLTE_PUCCH_FORMAT_2) {
if (pucch_sched->sps_enabled) {
n_pucch = pucch_sched->n_pucch_1[pucch_sched->tpc_for_pucch%4];
} else {
n_pucch = n_cce + pucch_sched->N_pucch_1;
n_pucch = n_cce + pucch_sched->N_pucch_1;
}
} else {
n_pucch = pucch_sched->n_pucch_2;
n_pucch = pucch_sched->n_pucch_2;
}
return n_pucch;
}
@ -411,9 +411,8 @@ static int pucch_get(srslte_pucch_t *q, srslte_pucch_format_t format, uint32_t n
return pucch_cp(q, format, n_pucch, input, z, true);
}
void srslte_pucch_set_threshold(srslte_pucch_t *q, float format1, float format1a) {
q->threshold_format1 = format1;
q->threshold_format1a = format1a;
void srslte_pucch_set_threshold(srslte_pucch_t *q, float format1_threshold) {
q->threshold_format1 = format1_threshold;
}
/** Initializes the PDCCH transmitter and receiver */
@ -435,6 +434,8 @@ int srslte_pucch_init(srslte_pucch_t *q) {
srslte_uci_cqi_pucch_init(&q->cqi);
q->threshold_format1 = 0.8;
ret = SRSLTE_SUCCESS;
}
clean_exit:
@ -616,6 +617,10 @@ static int uci_mod_bits(srslte_pucch_t *q, srslte_pucch_format_t format, uint8_t
// Declare this here, since we can not include refsignal_ul.h
void srslte_refsignal_r_uv_arg_1prb(float *arg, uint32_t u);
float tmp_alpha;
uint32_t tmp_noc, tmp_nprime, tmp_woc;
static int pucch_encode_(srslte_pucch_t* q, srslte_pucch_format_t format,
uint32_t n_pucch, uint32_t sf_idx, uint16_t rnti,
uint8_t bits[SRSLTE_PUCCH_MAX_BITS], cf_t z[SRSLTE_PUCCH_MAX_SYMBOLS], bool signal_only)
@ -659,8 +664,14 @@ static int pucch_encode_(srslte_pucch_t* q, srslte_pucch_format_t format,
if (n_prime_ns%2) {
S_ns = M_PI/2;
}
DEBUG("PUCCH d_0: %.1f+%.1fi, alpha: %.1f, n_oc: %d, n_prime_ns: %d, n_rb_2=%d\n",
DEBUG("PUCCH d_0: %.1f+%.1fi, alpha: %.1f, n_oc: %d, n_prime_ns: %d, n_rb_2=%d\n",
__real__ q->d[0], __imag__ q->d[0], alpha, n_oc, n_prime_ns, q->pucch_cfg.n_rb_2);
tmp_alpha = alpha;
tmp_noc = n_oc;
tmp_nprime = n_prime_ns;
tmp_woc = w_n_oc[N_sf_widx][n_oc%3][m];
for (uint32_t n=0;n<SRSLTE_PUCCH_N_SEQ;n++) {
z[(ns%2)*N_sf_0*SRSLTE_PUCCH_N_SEQ+m*SRSLTE_PUCCH_N_SEQ+n] =
q->d[0]*cexpf(I*(w_n_oc[N_sf_widx][n_oc%3][m]+q->tmp_arg[n]+alpha*n+S_ns));
@ -771,7 +782,7 @@ int srslte_pucch_decode(srslte_pucch_t* q, srslte_pucch_format_t format,
case SRSLTE_PUCCH_FORMAT_1:
bzero(bits, SRSLTE_PUCCH_MAX_BITS*sizeof(uint8_t));
pucch_encode(q, format, n_pucch, sf_idx, rnti, bits, q->z_tmp);
corr = crealf(srslte_vec_dot_prod_conj_ccc(q->z, q->z_tmp, nof_re))/nof_re;
corr = srslte_vec_corr_ccc(q->z, q->z_tmp, nof_re);
if (corr >= q->threshold_format1) {
ret = 1;
} else {
@ -782,11 +793,11 @@ int srslte_pucch_decode(srslte_pucch_t* q, srslte_pucch_format_t format,
break;
case SRSLTE_PUCCH_FORMAT_1A:
bzero(bits, SRSLTE_PUCCH_MAX_BITS*sizeof(uint8_t));
ret = 0;
ret = 0;
for (int b=0;b<2;b++) {
bits[0] = b;
bits[0] = b;
pucch_encode(q, format, n_pucch, sf_idx, rnti, bits, q->z_tmp);
corr = crealf(srslte_vec_dot_prod_conj_ccc(q->z, q->z_tmp, nof_re))/nof_re;
corr = srslte_vec_corr_ccc(q->z, q->z_tmp, nof_re);
if (corr > corr_max) {
corr_max = corr;
b_max = b;
@ -794,7 +805,7 @@ int srslte_pucch_decode(srslte_pucch_t* q, srslte_pucch_format_t format,
if (corr_max > q->threshold_format1) { // check with format1 in case ack+sr because ack only is binary
ret = 1;
}
DEBUG("format1a b=%d, corr=%f, nof_re=%d, th=%f\n", b, corr, nof_re, q->threshold_format1a);
DEBUG("format1a b=%d, corr=%f, nof_re=%d\n", b, corr, nof_re);
}
q->last_corr = corr_max;
bits[0] = b_max;

4
lib/src/phy/phch/pusch.c
View File

@ -512,7 +512,7 @@ int srslte_pusch_encode(srslte_pusch_t *q, srslte_pusch_cfg_t *cfg, srslte_softb
// Run scrambling
srslte_scrambling_bytes(seq, (uint8_t*) q->q, cfg->nbits.nof_bits);
// Correct UCI placeholder/repetition bits
// Correct UCI placeholder/repetition bits
uint8_t *d = q->q;
for (int i = 0; i < q->ul_sch.nof_ri_ack_bits; i++) {
if (q->ul_sch.ack_ri_bits[i].type == UCI_BIT_PLACEHOLDER) {
@ -592,7 +592,7 @@ int srslte_pusch_decode(srslte_pusch_t *q,
// Generate scrambling sequence if not pre-generated
srslte_sequence_t *seq = get_user_sequence(q, rnti, cfg->sf_idx, cfg->nbits.nof_bits);
// Decode RI/HARQ bits before descrambling
// Decode RI/HARQ bits before descrambling
if (srslte_ulsch_uci_decode_ri_ack(&q->ul_sch, cfg, softbuffer, q->q, seq->c, uci_data)) {
fprintf(stderr, "Error decoding RI/HARQ bits\n");
return SRSLTE_ERROR;

2
lib/src/phy/phch/uci.c
View File

@ -380,7 +380,7 @@ int decode_cqi_long(srslte_uci_cqi_pusch_t *q, int16_t *q_bits, uint32_t Q,
ret = srslte_crc_checksum(&q->crc, q->tmp_cqi, nof_bits + 8);
if (ret == 0) {
memcpy(data, q->tmp_cqi, nof_bits*sizeof(uint8_t));
ret = 1;
ret = 1;
} else {
ret = 0;
}

135
lib/src/phy/rf/rf_soapy_imp.c
View File

@ -43,9 +43,15 @@ typedef struct {
SoapySDRRange *ranges;
SoapySDRStream *rxStream;
SoapySDRStream *txStream;
bool tx_stream_active;
bool rx_stream_active;
} rf_soapy_handler_t;
cf_t zero_mem[64*1024];
int soapy_error(void *h)
{
return 0;
@ -82,6 +88,7 @@ void rf_soapy_register_error_handler(void *notused, srslte_rf_error_handler_t ne
}
char* rf_soapy_devname(void* h)
{
return "soapy";
@ -110,10 +117,11 @@ void rf_soapy_set_rx_cal(void *h, srslte_rf_cal_t *cal)
int rf_soapy_start_rx_stream(void *h)
{
rf_soapy_handler_t *handler = (rf_soapy_handler_t*) h;
if (SoapySDRDevice_activateStream(handler->device, handler->rxStream, 0, 0, 0) != 0)
return SRSLTE_ERROR;
if(handler->rx_stream_active == false){
if(SoapySDRDevice_activateStream(handler->device, handler->rxStream, 0, 0, 0) != 0)
return SRSLTE_ERROR;
handler->rx_stream_active = true;
}
return SRSLTE_SUCCESS;
}
@ -121,14 +129,11 @@ int rf_soapy_start_rx_stream(void *h)
int rf_soapy_start_tx_stream(void *h)
{
rf_soapy_handler_t *handler = (rf_soapy_handler_t*) h;
if (SoapySDRDevice_setupStream(handler->device, &(handler->txStream), SOAPY_SDR_TX, SOAPY_SDR_CF32, NULL, 0, NULL) != 0) {
printf("setupStream fail: %s\n", SoapySDRDevice_lastError());
return SRSLTE_ERROR;
}
if(SoapySDRDevice_activateStream(handler->device, handler->txStream, 0, 0, 0) != 0)
return SRSLTE_ERROR;
if(handler->tx_stream_active == false){
if(SoapySDRDevice_activateStream(handler->device, handler->txStream, 0, 0, 0) != 0)
return SRSLTE_ERROR;
handler->tx_stream_active = true;
}
return SRSLTE_SUCCESS;
}
@ -138,7 +143,8 @@ int rf_soapy_stop_rx_stream(void *h)
rf_soapy_handler_t *handler = (rf_soapy_handler_t*) h;
if (SoapySDRDevice_deactivateStream(handler->device, handler->rxStream, 0, 0) != 0)
return SRSLTE_ERROR;
handler->rx_stream_active = false;
return SRSLTE_SUCCESS;
}
@ -149,6 +155,8 @@ int rf_soapy_stop_tx_stream(void *h)
if(SoapySDRDevice_deactivateStream(handler->device, handler->txStream, 0, 0) != 0)
return SRSLTE_ERROR;
handler->tx_stream_active = false;
return SRSLTE_SUCCESS;
}
@ -210,12 +218,26 @@ int rf_soapy_open_multi(char *args, void **h, uint32_t nof_rx_antennas)
bzero(handler, sizeof(rf_soapy_handler_t));
*h = handler;
handler->device = sdr;
if (SoapySDRDevice_setupStream(handler->device, &(handler->rxStream), SOAPY_SDR_RX, SOAPY_SDR_CF32, NULL, 0, NULL) != 0) {
printf("setupStream fail: %s\n", SoapySDRDevice_lastError());
return SRSLTE_ERROR;
handler->tx_stream_active = false;
handler->rx_stream_active = false;
if(SoapySDRDevice_getNumChannels(handler->device,SOAPY_SDR_RX) > 0){
printf("setting up RX stream\n");
if(SoapySDRDevice_setupStream(handler->device, &(handler->rxStream), SOAPY_SDR_RX, SOAPY_SDR_CF32, NULL, 0, NULL) != 0) {
printf("Rx setupStream fail: %s\n", SoapySDRDevice_lastError());
return SRSLTE_ERROR;
}
}
if(SoapySDRDevice_getNumChannels(handler->device,SOAPY_SDR_TX) > 0){
printf("setting up TX stream\n");
if (SoapySDRDevice_setupStream(handler->device, &(handler->txStream), SOAPY_SDR_TX, SOAPY_SDR_CF32, NULL, 0, NULL) != 0) {
printf("Tx setupStream fail: %s\n", SoapySDRDevice_lastError());
return SRSLTE_ERROR;
}
}
return SRSLTE_SUCCESS;
}
@ -300,7 +322,7 @@ double rf_soapy_set_tx_gain(void *h, double gain)
printf("setGain fail: %s\n", SoapySDRDevice_lastError());
return SRSLTE_ERROR;
}
return rf_soapy_get_rx_gain(h);
return rf_soapy_get_tx_gain(h);
}
@ -338,7 +360,7 @@ double rf_soapy_set_tx_freq(void *h, double freq)
printf("setFrequency fail: %s\n", SoapySDRDevice_lastError());
return SRSLTE_ERROR;
}
return SoapySDRDevice_getFrequency(handler->device, SOAPY_SDR_RX, 0);
return SoapySDRDevice_getFrequency(handler->device, SOAPY_SDR_TX, 0);
}
@ -355,10 +377,7 @@ int rf_soapy_recv_with_time_multi(void *h,
double *frac_secs)
{
rf_soapy_handler_t *handler = (rf_soapy_handler_t*) h;
//void *buffs[] = {buff}; //array of buffers
int flags; //flags set by receive operation
int num_channels = 1; // temp
int trials = 0;
@ -368,16 +387,14 @@ int rf_soapy_recv_with_time_multi(void *h,
do {
size_t rx_samples = nsamples;
if (rx_samples > nsamples - n)
{
if (rx_samples > nsamples - n){
rx_samples = nsamples - n;
}
void *buffs_ptr[4];
for (int i=0; i<num_channels; i++)
{
for (int i=0; i<num_channels; i++){
cf_t *data_c = (cf_t*) data[i];
buffs_ptr[i] = &data_c[n];
} //(void*)(&data)
}
ret = SoapySDRDevice_readStream(handler->device, handler->rxStream, buffs_ptr , rx_samples, &flags, &timeNs, 1000000);
if(ret < 0) {
// continue when getting overflows
@ -413,23 +430,49 @@ int rf_soapy_recv_with_time(void *h,
int rf_soapy_send_timed(void *h,
void *data,
int nsamples,
time_t secs,
double frac_secs,
bool has_time_spec,
bool blocking,
bool is_start_of_burst,
bool is_end_of_burst)
void *data,
int nsamples,
time_t secs,
double frac_secs,
bool has_time_spec,
bool blocking,
bool is_start_of_burst,
bool is_end_of_burst)
{
int flags;
long long timeNs;
rf_soapy_handler_t *handler = (rf_soapy_handler_t*) h;
timeNs = secs * 1000000000;
timeNs = timeNs + (frac_secs * 1000000000);
int ret = SoapySDRDevice_writeStream(handler->device, handler->txStream, data, nsamples, &flags, timeNs, 100000);
if(ret != nsamples)
return SRSLTE_ERROR;
return ret;
int flags;
long long timeNs;
int trials = 0;
int ret = 0;
rf_soapy_handler_t *handler = (rf_soapy_handler_t*) h;
timeNs = secs * 1000000000;
timeNs = timeNs + (frac_secs * 1000000000);
int n = 0;
if(!handler->tx_stream_active){
rf_soapy_start_tx_stream(h);
}
cf_t *data_c = (cf_t*) data;
do{
size_t tx_samples = nsamples;
if (tx_samples > nsamples - n) {
tx_samples = nsamples - n;
}
void *buff = (void*) &data_c[n];
const void *buffs_ptr[1] = {buff};
ret = SoapySDRDevice_writeStream(handler->device, handler->txStream, buffs_ptr, tx_samples, &flags, timeNs, 10000);
if(ret < 0)
return SRSLTE_ERROR;
n += ret;
trials++;
}while (n < nsamples && trials < 100);
if(ret != nsamples)
return SRSLTE_ERROR;
return ret;
}

10
lib/src/phy/rf/rf_uhd_imp.c
View File

@ -328,7 +328,7 @@ int rf_uhd_open_multi(char *args, void **h, uint32_t nof_rx_antennas)
if (args[0]=='\0') {
if (find_string(devices_str, "type=b200") && !strstr(args, "recv_frame_size")) {
// If B200 is available, use it
args = "type=b200";
args = "type=b200,master_clock_rate=30.72e6";
handler->devname = DEVNAME_B200;
} else if (find_string(devices_str, "type=x300")) {
// Else if X300 is available, set master clock rate now (can't be changed later)
@ -344,6 +344,8 @@ int rf_uhd_open_multi(char *args, void **h, uint32_t nof_rx_antennas)
handler->dynamic_rate = false;
handler->devname = DEVNAME_X300;
} else if (strstr(args, "type=b200")) {
snprintf(args2, sizeof(args2), "%s,master_clock_rate=30.72e6", args);
args = args2;
handler->devname = DEVNAME_B200;
}
}
@ -399,7 +401,11 @@ int rf_uhd_open_multi(char *args, void **h, uint32_t nof_rx_antennas)
};
handler->nof_rx_channels = nof_rx_antennas;
handler->nof_tx_channels = 1;
handler->nof_tx_channels = 1;
/* Set default rate to avoid decimation warnings */
uhd_usrp_set_rx_rate(handler->usrp, 1.92e6, 0);
uhd_usrp_set_tx_rate(handler->usrp, 1.92e6, 0);
/* Initialize rx and tx stremers */
uhd_rx_streamer_make(&handler->rx_stream);

2
lib/src/phy/ue/ue_cell_search.c
View File

@ -101,7 +101,7 @@ int srslte_ue_cellsearch_init_multi(srslte_ue_cellsearch_t * q, uint32_t max_fra
{
int ret = SRSLTE_ERROR_INVALID_INPUTS;
if (q != NULL) {
if (q != NULL && nof_rx_antennas > 0) {
ret = SRSLTE_ERROR;
srslte_cell_t cell;

9
lib/src/phy/utils/vector.c
View File

@ -681,6 +681,15 @@ float srslte_vec_avg_power_cf(cf_t *x, uint32_t len) {
return crealf(srslte_vec_dot_prod_conj_ccc(x,x,len)) / len;
}
// Correlation assumes zero-mean x and y
float srslte_vec_corr_ccc(cf_t *x, cf_t *y, uint32_t len) {
// return crealf(srslte_vec_dot_prod_conj_ccc(x,y,len)) / len;
float s_x = crealf(srslte_vec_dot_prod_conj_ccc(x, x, len))/len;
float s_y = crealf(srslte_vec_dot_prod_conj_ccc(y, y, len))/len;
float cov = crealf(srslte_vec_dot_prod_conj_ccc(x, y, len))/len;
return cov/(sqrt(s_x*s_y));
}
void srslte_vec_abs_cf(cf_t *x, float *abs, uint32_t len) {
#ifndef HAVE_VOLK_MAG_FUNCTION
int i;

4
lib/src/radio/radio.cc
View File

@ -333,7 +333,7 @@ void radio::set_tx_srate(float srate)
} else if (srate_khz == 15.36e3) {
nsamples = 131;
} else if (srate_khz == 23.04e3) {
nsamples = 175;
nsamples = 150;
} else {
/* Interpolate from known values */
printf("\nWarning TX/RX time offset for sampling rate %.0f KHz not calibrated. Using interpolated value\n\n", cur_tx_srate);
@ -353,7 +353,7 @@ void radio::set_tx_srate(float srate)
} else if (srate_khz == 15.36e3) {
nsamples = 86;
} else if (srate_khz == 23.04e3) {
nsamples = 119;
nsamples = 110;
} else {
/* Interpolate from known values */
printf("\nWarning TX/RX time offset for sampling rate %.0f KHz not calibrated. Using interpolated value\n\n", cur_tx_srate);

5
lib/src/upper/gw.cc
View File

@ -44,12 +44,13 @@ gw::gw()
:if_up(false)
{}
void gw::init(srsue::pdcp_interface_gw *pdcp_, srsue::ue_interface *ue_, log *gw_log_)
void gw::init(srsue::pdcp_interface_gw *pdcp_, srsue::ue_interface *ue_, log *gw_log_, uint32_t lcid_)
{
pool = byte_buffer_pool::get_instance();
pdcp = pdcp_;
ue = ue_;
gw_log = gw_log_;
lcid = lcid_;
run_enable = true;
gettimeofday(&metrics_time[1], NULL);
@ -255,7 +256,7 @@ void gw::run_thread()
// Send PDU directly to PDCP
pdu->set_timestamp();
ul_tput_bytes += pdu->N_bytes;
pdcp->write_sdu(RB_ID_DRB1, pdu);
pdcp->write_sdu(lcid, pdu);
do {
pdu = pool_allocate;

25
lib/src/upper/pdcp.cc
View File

@ -32,15 +32,22 @@ namespace srslte {
pdcp::pdcp()
{}
void pdcp::init(srsue::rlc_interface_pdcp *rlc_, srsue::rrc_interface_pdcp *rrc_, srsue::gw_interface_pdcp *gw_, log *pdcp_log_, uint8_t direction_)
void pdcp::init(srsue::rlc_interface_pdcp *rlc_, srsue::rrc_interface_pdcp *rrc_, srsue::gw_interface_pdcp *gw_, log *pdcp_log_, uint32_t lcid_, uint8_t direction_)
{
rlc = rlc_;
rrc = rrc_;
gw = gw_;
pdcp_log = pdcp_log_;
lcid = lcid_;
direction = direction_;
pdcp_array[0].init(rlc, rrc, gw, pdcp_log, RB_ID_SRB0, direction); // SRB0
// Default config
srslte_pdcp_config_t cnfg;
cnfg.is_control = false;
cnfg.is_data = false;
cnfg.direction = direction_;
pdcp_array[0].init(rlc, rrc, gw, pdcp_log, lcid, cnfg);
}
void pdcp::stop()
@ -52,7 +59,7 @@ void pdcp::reset()
pdcp_array[i].reset();
}
pdcp_array[0].init(rlc, rrc, gw, pdcp_log, RB_ID_SRB0, direction); // SRB0
pdcp_array[0].init(rlc, rrc, gw, pdcp_log, lcid, direction);
}
/*******************************************************************************
@ -64,17 +71,17 @@ void pdcp::write_sdu(uint32_t lcid, byte_buffer_t *sdu)
pdcp_array[lcid].write_sdu(sdu);
}
void pdcp::add_bearer(uint32_t lcid, LIBLTE_RRC_PDCP_CONFIG_STRUCT *cnfg)
void pdcp::add_bearer(uint32_t lcid, srslte_pdcp_config_t cfg)
{
if(lcid < 0 || lcid >= SRSLTE_N_RADIO_BEARERS) {
if(lcid >= SRSLTE_N_RADIO_BEARERS) {
pdcp_log->error("Radio bearer id must be in [0:%d] - %d\n", SRSLTE_N_RADIO_BEARERS, lcid);
return;
}
if (!pdcp_array[lcid].is_active()) {
pdcp_array[lcid].init(rlc, rrc, gw, pdcp_log, lcid, direction, cnfg);
pdcp_log->info("Added bearer %s\n", rb_id_text[lcid]);
pdcp_array[lcid].init(rlc, rrc, gw, pdcp_log, lcid, cfg);
pdcp_log->info("Added bearer %s\n", rrc->get_rb_name(lcid).c_str());
} else {
pdcp_log->warning("Bearer %s already configured. Reconfiguration not supported\n", rb_id_text[lcid]);
pdcp_log->warning("Bearer %s already configured. Reconfiguration not supported\n", rrc->get_rb_name(lcid).c_str());
}
}
@ -116,7 +123,7 @@ void pdcp::write_pdu_pcch(byte_buffer_t *sdu)
*******************************************************************************/
bool pdcp::valid_lcid(uint32_t lcid)
{
if(lcid < 0 || lcid >= SRSLTE_N_RADIO_BEARERS) {
if(lcid >= SRSLTE_N_RADIO_BEARERS) {
pdcp_log->error("Radio bearer id must be in [0:%d] - %d", SRSLTE_N_RADIO_BEARERS, lcid);
return false;
}

92
lib/src/upper/pdcp_entity.cc
View File

@ -34,8 +34,6 @@ pdcp_entity::pdcp_entity()
:active(false)
,tx_count(0)
,rx_count(0)
,do_security(false)
,sn_len(12)
{
pool = byte_buffer_pool::get_instance();
}
@ -45,38 +43,27 @@ void pdcp_entity::init(srsue::rlc_interface_pdcp *rlc_,
srsue::gw_interface_pdcp *gw_,
srslte::log *log_,
uint32_t lcid_,
u_int8_t direction_,
LIBLTE_RRC_PDCP_CONFIG_STRUCT *cnfg)
srslte_pdcp_config_t cfg_)
{
rlc = rlc_;
rrc = rrc_;
gw = gw_;
log = log_;
lcid = lcid_;
direction = direction_;
cfg = cfg_;
active = true;
tx_count = 0;
rx_count = 0;
do_security = false;
if(cnfg)
{
if(cnfg->rlc_um_pdcp_sn_size_present) {
if(LIBLTE_RRC_PDCP_SN_SIZE_7_BITS == cnfg->rlc_um_pdcp_sn_size) {
sn_len = 7;
}
}
// TODO: handle remainder of cnfg
}
log->debug("Init %s\n", rb_id_text[lcid]);
log->debug("Init %s\n", rrc->get_rb_name(lcid).c_str());
}
void pdcp_entity::reset()
{
active = false;
if(log)
log->debug("Reset %s\n", rb_id_text[lcid]);
log->debug("Reset %s\n", rrc->get_rb_name(lcid).c_str());
}
bool pdcp_entity::is_active()
@ -87,44 +74,32 @@ bool pdcp_entity::is_active()
// RRC interface
void pdcp_entity::write_sdu(byte_buffer_t *sdu)
{
log->info_hex(sdu->msg, sdu->N_bytes, "TX %s SDU, do_security = %s", rb_id_text[lcid], (do_security)?"true":"false");
log->info_hex(sdu->msg, sdu->N_bytes, "TX %s SDU, do_security = %s", rrc->get_rb_name(lcid).c_str(), (cfg.do_security)?"true":"false");
// Handle SRB messages
switch(lcid)
{
case RB_ID_SRB0:
rlc->write_sdu(lcid, sdu);
break;
case RB_ID_SRB1: // Intentional fall-through
case RB_ID_SRB2:
if (cfg.is_control) {
pdcp_pack_control_pdu(tx_count, sdu);
if(do_security)
if(cfg.do_security)
{
integrity_generate(&k_rrc_int[16],
tx_count,
lcid-1,
direction,
cfg.direction,
sdu->msg,
sdu->N_bytes-4,
&sdu->msg[sdu->N_bytes-4]);
}
tx_count++;
rlc->write_sdu(lcid, sdu);
break;
}
// Handle DRB messages
if(lcid >= RB_ID_DRB1)
{
if(12 == sn_len)
{
if (cfg.is_data) {
if(12 == cfg.sn_len) {
pdcp_pack_data_pdu_long_sn(tx_count++, sdu);
} else {
pdcp_pack_data_pdu_short_sn(tx_count++, sdu);
}
rlc->write_sdu(lcid, sdu);
}
rlc->write_sdu(lcid, sdu);
}
void pdcp_entity::config_security(uint8_t *k_rrc_enc_,
@ -132,7 +107,7 @@ void pdcp_entity::config_security(uint8_t *k_rrc_enc_,
CIPHERING_ALGORITHM_ID_ENUM cipher_algo_,
INTEGRITY_ALGORITHM_ID_ENUM integ_algo_)
{
do_security = true;
cfg.do_security = true;
for(int i=0; i<32; i++)
{
k_rrc_enc[i] = k_rrc_enc_[i];
@ -145,37 +120,32 @@ void pdcp_entity::config_security(uint8_t *k_rrc_enc_,
// RLC interface
void pdcp_entity::write_pdu(byte_buffer_t *pdu)
{
// Handle SRB messages
switch(lcid)
{
case RB_ID_SRB0:
// Simply pass on to RRC
log->info_hex(pdu->msg, pdu->N_bytes, "RX %s PDU", rb_id_text[lcid]);
rrc->write_pdu(RB_ID_SRB0, pdu);
break;
case RB_ID_SRB1: // Intentional fall-through
case RB_ID_SRB2:
uint32_t sn;
log->info_hex(pdu->msg, pdu->N_bytes, "RX %s PDU", rb_id_text[lcid]);
pdcp_unpack_control_pdu(pdu, &sn);
log->info_hex(pdu->msg, pdu->N_bytes, "RX %s SDU SN: %d",
rb_id_text[lcid], sn);
rrc->write_pdu(lcid, pdu);
break;
}
// Handle DRB messages
if(lcid >= RB_ID_DRB1)
{
if (cfg.is_data) {
uint32_t sn;
if(12 == sn_len)
if(12 == cfg.sn_len)
{
pdcp_unpack_data_pdu_long_sn(pdu, &sn);
} else {
pdcp_unpack_data_pdu_short_sn(pdu, &sn);
}
log->info_hex(pdu->msg, pdu->N_bytes, "RX %s PDU: %d", rb_id_text[lcid], sn);
log->info_hex(pdu->msg, pdu->N_bytes, "RX %s PDU: %d", rrc->get_rb_name(lcid).c_str(), sn);
gw->write_pdu(lcid, pdu);
} else {
if (cfg.is_control) {
uint32_t sn;
pdcp_unpack_control_pdu(pdu, &sn);
log->info_hex(pdu->msg, pdu->N_bytes, "RX %s SDU SN: %d",
rrc->get_rb_name(lcid).c_str(), sn);
} else {
log->info_hex(pdu->msg, pdu->N_bytes, "RX %s PDU", rrc->get_rb_name(lcid).c_str());
}
// pass to RRC
rrc->write_pdu(lcid, pdu);
}
}

47
lib/src/upper/rlc.cc
View File

@ -41,18 +41,20 @@ void rlc::init(srsue::pdcp_interface_rlc *pdcp_,
srsue::rrc_interface_rlc *rrc_,
srsue::ue_interface *ue_,
log *rlc_log_,
mac_interface_timers *mac_timers_)
mac_interface_timers *mac_timers_,
uint32_t lcid_)
{
pdcp = pdcp_;
rrc = rrc_;
ue = ue_;
rlc_log = rlc_log_;
mac_timers = mac_timers_;
default_lcid = lcid_;
gettimeofday(&metrics_time[1], NULL);
reset_metrics();
rlc_array[0].init(RLC_MODE_TM, rlc_log, RB_ID_SRB0, pdcp, rrc, mac_timers); // SRB0
rlc_array[0].init(RLC_MODE_TM, rlc_log, default_lcid, pdcp, rrc, mac_timers); // SRB0
}
void rlc::reset_metrics()
@ -97,7 +99,15 @@ void rlc::reset()
rlc_array[i].reset();
}
rlc_array[0].init(RLC_MODE_TM, rlc_log, RB_ID_SRB0, pdcp, rrc, mac_timers); // SRB0
rlc_array[0].init(RLC_MODE_TM, rlc_log, default_lcid, pdcp, rrc, mac_timers); // SRB0
}
void rlc::empty_queue()
{
for(uint32_t i=0; i<SRSLTE_N_RADIO_BEARERS; i++) {
if(rlc_array[i].active())
rlc_array[i].empty_queue();
}
}
/*******************************************************************************
@ -110,6 +120,11 @@ void rlc::write_sdu(uint32_t lcid, byte_buffer_t *sdu)
}
}
std::string rlc::get_rb_name(uint32_t lcid)
{
return rrc->get_rb_name(lcid);
}
/*******************************************************************************
MAC interface
*******************************************************************************/
@ -186,11 +201,10 @@ void rlc::write_pdu_pcch(uint8_t *payload, uint32_t nof_bytes)
*******************************************************************************/
void rlc::add_bearer(uint32_t lcid)
{
// No config provided - use defaults for lcid
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
if(RB_ID_SRB1 == lcid || RB_ID_SRB2 == lcid)
{
// No config provided - use defaults for SRB1 and SRB2
if(lcid < 3) {
if (!rlc_array[lcid].active()) {
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS45;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_INFINITY;
@ -198,28 +212,27 @@ void rlc::add_bearer(uint32_t lcid)
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS35;
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS0;
add_bearer(lcid, &cnfg);
add_bearer(lcid, srslte_rlc_config_t(&cnfg));
} else {
rlc_log->warning("Bearer %s already configured. Reconfiguration not supported\n", rb_id_text[lcid]);
rlc_log->warning("Bearer %s already configured. Reconfiguration not supported\n", get_rb_name(lcid).c_str());
}
}else{
rlc_log->error("Radio bearer %s does not support default RLC configuration.",
rb_id_text[lcid]);
rlc_log->error("Radio bearer %s does not support default RLC configuration.\n",
get_rb_name(lcid).c_str());
}
}
void rlc::add_bearer(uint32_t lcid, LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg)
void rlc::add_bearer(uint32_t lcid, srslte_rlc_config_t cnfg)
{
if(lcid < 0 || lcid >= SRSLTE_N_RADIO_BEARERS) {
rlc_log->error("Radio bearer id must be in [0:%d] - %d\n", SRSLTE_N_RADIO_BEARERS, lcid);
return;
}
if (!rlc_array[lcid].active()) {
rlc_log->info("Adding radio bearer %s with mode %s\n",
rb_id_text[lcid], liblte_rrc_rlc_mode_text[cnfg->rlc_mode]);
switch(cnfg->rlc_mode)
get_rb_name(lcid).c_str(), liblte_rrc_rlc_mode_text[cnfg.rlc_mode]);
switch(cnfg.rlc_mode)
{
case LIBLTE_RRC_RLC_MODE_AM:
rlc_array[lcid].init(RLC_MODE_AM, rlc_log, lcid, pdcp, rrc, mac_timers);
@ -238,7 +251,7 @@ void rlc::add_bearer(uint32_t lcid, LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg)
return;
}
} else {
rlc_log->warning("Bearer %s already created.\n", rb_id_text[lcid]);
rlc_log->warning("Bearer %s already created.\n", get_rb_name(lcid).c_str());
}
rlc_array[lcid].configure(cnfg);

161
lib/src/upper/rlc_am.cc
View File

@ -74,20 +74,13 @@ void rlc_am::init(srslte::log *log_,
rrc = rrc_;
}
void rlc_am::configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg)
void rlc_am::configure(srslte_rlc_config_t cfg_)
{
t_poll_retx = liblte_rrc_t_poll_retransmit_num[cnfg->ul_am_rlc.t_poll_retx];
poll_pdu = liblte_rrc_poll_pdu_num[cnfg->ul_am_rlc.poll_pdu];
poll_byte = liblte_rrc_poll_byte_num[cnfg->ul_am_rlc.poll_byte]*1000; // KB
max_retx_thresh = liblte_rrc_max_retx_threshold_num[cnfg->ul_am_rlc.max_retx_thresh];
t_reordering = liblte_rrc_t_reordering_num[cnfg->dl_am_rlc.t_reordering];
t_status_prohibit = liblte_rrc_t_status_prohibit_num[cnfg->dl_am_rlc.t_status_prohibit];
cfg = cfg_.am;
log->info("%s configured: t_poll_retx=%d, poll_pdu=%d, poll_byte=%d, max_retx_thresh=%d, "
"t_reordering=%d, t_status_prohibit=%d\n",
rb_id_text[lcid], t_poll_retx, poll_pdu, poll_byte, max_retx_thresh,
t_reordering, t_status_prohibit);
rrc->get_rb_name(lcid).c_str(), cfg.t_poll_retx, cfg.poll_pdu, cfg.poll_byte, cfg.max_retx_thresh,
cfg.t_reordering, cfg.t_status_prohibit);
}
@ -176,7 +169,7 @@ uint32_t rlc_am::get_bearer()
void rlc_am::write_sdu(byte_buffer_t *sdu)
{
log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU", rb_id_text[lcid]);
log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU", rrc->get_rb_name(lcid).c_str());
tx_sdu_queue.write(sdu);
}
@ -208,12 +201,14 @@ uint32_t rlc_am::get_total_buffer_state()
}
// Bytes needed for tx SDUs
n_sdus = tx_sdu_queue.size();
n_bytes += tx_sdu_queue.size_bytes();
if(tx_sdu)
{
n_sdus++;
n_bytes += tx_sdu->N_bytes;
if(tx_window.size() < 1024) {
n_sdus = tx_sdu_queue.size();
n_bytes += tx_sdu_queue.size_bytes();
if(tx_sdu)
{
n_sdus++;
n_bytes += tx_sdu->N_bytes;
}
}
// Room needed for header extensions? (integer rounding)
@ -256,7 +251,7 @@ uint32_t rlc_am::get_buffer_state()
}
// Bytes needed for tx SDUs
if(tx_window.size() < RLC_AM_WINDOW_SIZE) {
if(tx_window.size() < 1024) {
n_sdus = tx_sdu_queue.size();
n_bytes = tx_sdu_queue.size_bytes();
if(tx_sdu)
@ -286,6 +281,7 @@ int rlc_am::read_pdu(uint8_t *payload, uint32_t nof_bytes)
pthread_mutex_lock(&mutex);
log->debug("MAC opportunity - %d bytes\n", nof_bytes);
log->debug("tx_window size - %d PDUs\n", tx_window.size());
// Tx STATUS if requested
if(do_status && !status_prohibited()) {
@ -298,10 +294,11 @@ int rlc_am::read_pdu(uint8_t *payload, uint32_t nof_bytes)
return build_retx_pdu(payload, nof_bytes);
}
pthread_mutex_unlock(&mutex);
// Build a PDU from SDUs
return build_data_pdu(payload, nof_bytes);
int ret = build_data_pdu(payload, nof_bytes);
pthread_mutex_unlock(&mutex);
return ret;
}
void rlc_am::write_pdu(uint8_t *payload, uint32_t nof_bytes)
@ -343,7 +340,7 @@ void rlc_am::check_reordering_timeout()
if(reordering_timeout.is_running() && reordering_timeout.expired())
{
reordering_timeout.reset();
log->debug("%s reordering timeout expiry - updating vr_ms\n", rb_id_text[lcid]);
log->debug("%s reordering timeout expiry - updating vr_ms\n", rrc->get_rb_name(lcid).c_str());
// 36.322 v10 Section 5.1.3.2.4
vr_ms = vr_x;
@ -358,7 +355,7 @@ void rlc_am::check_reordering_timeout()
if(RX_MOD_BASE(vr_h) > RX_MOD_BASE(vr_ms))
{
reordering_timeout.start(t_reordering);
reordering_timeout.start(cfg.t_reordering);
vr_x = vr_h;
}
@ -372,9 +369,9 @@ void rlc_am::check_reordering_timeout()
bool rlc_am::poll_required()
{
if(poll_pdu > 0 && pdu_without_poll > (uint32_t)poll_pdu)
if(cfg.poll_pdu > 0 && pdu_without_poll > (uint32_t)cfg.poll_pdu)
return true;
if(poll_byte > 0 && byte_without_poll > (uint32_t)poll_byte)
if(cfg.poll_byte > 0 && byte_without_poll > (uint32_t)cfg.poll_byte)
return true;
if(poll_retx())
return true;
@ -405,18 +402,18 @@ int rlc_am::build_status_pdu(uint8_t *payload, uint32_t nof_bytes)
if(pdu_len > 0 && nof_bytes >= (uint32_t)pdu_len)
{
log->info("%s Tx status PDU - %s\n",
rb_id_text[lcid], rlc_am_to_string(&status).c_str());
rrc->get_rb_name(lcid).c_str(), rlc_am_to_string(&status).c_str());
do_status = false;
poll_received = false;
if(t_status_prohibit > 0)
status_prohibit_timeout.start(t_status_prohibit);
if(cfg.t_status_prohibit > 0)
status_prohibit_timeout.start(cfg.t_status_prohibit);
debug_state();
return rlc_am_write_status_pdu(&status, payload);
}else{
log->warning("%s Cannot tx status PDU - %d bytes available, %d bytes required\n",
rb_id_text[lcid], nof_bytes, pdu_len);
rrc->get_rb_name(lcid).c_str(), nof_bytes, pdu_len);
return 0;
}
}
@ -433,7 +430,7 @@ int rlc_am::build_retx_pdu(uint8_t *payload, uint32_t nof_bytes)
// Is resegmentation needed?
if(retx.is_segment || required_buffer_size(retx) > (int)nof_bytes) {
log->debug("%s build_retx_pdu - resegmentation required\n", rb_id_text[lcid]);
log->debug("%s build_retx_pdu - resegmentation required\n", rrc->get_rb_name(lcid).c_str());
return build_segment(payload, nof_bytes, retx);
}
@ -446,7 +443,7 @@ int rlc_am::build_retx_pdu(uint8_t *payload, uint32_t nof_bytes)
poll_sn = vt_s;
pdu_without_poll = 0;
byte_without_poll = 0;
poll_retx_timeout.start(t_poll_retx);
poll_retx_timeout.start(cfg.t_poll_retx);
}
uint8_t *ptr = payload;
@ -455,10 +452,10 @@ int rlc_am::build_retx_pdu(uint8_t *payload, uint32_t nof_bytes)
retx_queue.pop_front();
tx_window[retx.sn].retx_count++;
if(tx_window[retx.sn].retx_count >= max_retx_thresh)
if(tx_window[retx.sn].retx_count >= cfg.max_retx_thresh)
rrc->max_retx_attempted();
log->info("%s Retx PDU scheduled for tx. SN: %d, retx count: %d\n",
rb_id_text[lcid], retx.sn, tx_window[retx.sn].retx_count);
rrc->get_rb_name(lcid).c_str(), retx.sn, tx_window[retx.sn].retx_count);
debug_state();
return (ptr-payload) + tx_window[retx.sn].buf->N_bytes;
@ -491,7 +488,7 @@ int rlc_am::build_segment(uint8_t *payload, uint32_t nof_bytes, rlc_amd_retx_t r
if(nof_bytes <= head_len)
{
log->warning("%s Cannot build a PDU segment - %d bytes available, %d bytes required for header\n",
rb_id_text[lcid], nof_bytes, head_len);
rrc->get_rb_name(lcid).c_str(), nof_bytes, head_len);
return 0;
}
pdu_space = nof_bytes-head_len;
@ -557,15 +554,15 @@ int rlc_am::build_segment(uint8_t *payload, uint32_t nof_bytes, rlc_amd_retx_t r
memcpy(ptr, data, len);
log->info("%s Retx PDU segment scheduled for tx. SN: %d, SO: %d\n",
rb_id_text[lcid], retx.sn, retx.so_start);
rrc->get_rb_name(lcid).c_str(), retx.sn, retx.so_start);
debug_state();
int pdu_len = (ptr-payload) + len;
if(pdu_len > (int)nof_bytes) {
log->error("%s Retx PDU segment length error. Available: %d, Used: %d\n",
rb_id_text[lcid], nof_bytes, pdu_len);
rrc->get_rb_name(lcid).c_str(), nof_bytes, pdu_len);
log->debug("%s Retx PDU segment length error. Header len: %d, Payload len: %d, N_li: %d\n",
rb_id_text[lcid], (ptr-payload), len, new_header.N_li);
rrc->get_rb_name(lcid).c_str(), (ptr-payload), len, new_header.N_li);
}
return pdu_len;
@ -582,6 +579,16 @@ int rlc_am::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
byte_buffer_t *pdu = pool_allocate;
if (!pdu) {
log->console("Fatal Error: Could not allocate PDU in build_data_pdu()\n");
log->console("tx_window size: %d PDUs\n", tx_window.size());
log->console("vt_a = %d, vt_ms = %d, vt_s = %d, poll_sn = %d "
"vr_r = %d, vr_mr = %d, vr_x = %d, vr_ms = %d, vr_h = %d\n",
vt_a, vt_ms, vt_s, poll_sn,
vr_r, vr_mr, vr_x, vr_ms, vr_h);
log->console("retx_queue size: %d PDUs\n", retx_queue.size());
std::map<uint32_t, rlc_amd_tx_pdu_t>::iterator txit;
for(txit = tx_window.begin(); txit != tx_window.end(); txit++) {
log->console("tx_window - SN: %d\n", txit->first);
}
exit(-1);
}
rlc_amd_pdu_header_t header;
@ -603,13 +610,13 @@ int rlc_am::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
if(pdu_space <= head_len)
{
log->warning("%s Cannot build a PDU - %d bytes available, %d bytes required for header\n",
rb_id_text[lcid], nof_bytes, head_len);
rrc->get_rb_name(lcid).c_str(), nof_bytes, head_len);
pool->deallocate(pdu);
return 0;
}
log->debug("%s Building PDU - pdu_space: %d, head_len: %d \n",
rb_id_text[lcid], pdu_space, head_len);
rrc->get_rb_name(lcid).c_str(), pdu_space, head_len);
// Check for SDU segment
if(tx_sdu)
@ -624,7 +631,7 @@ int rlc_am::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
if(tx_sdu->N_bytes == 0)
{
log->info("%s Complete SDU scheduled for tx. Stack latency: %ld us\n",
rb_id_text[lcid], tx_sdu->get_latency_us());
rrc->get_rb_name(lcid).c_str(), tx_sdu->get_latency_us());
pool->deallocate(tx_sdu);
tx_sdu = NULL;
}
@ -635,7 +642,7 @@ int rlc_am::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
header.fi |= RLC_FI_FIELD_NOT_START_ALIGNED; // First byte does not correspond to first byte of SDU
log->debug("%s Building PDU - added SDU segment (len:%d) - pdu_space: %d, head_len: %d \n",
rb_id_text[lcid], to_move, pdu_space, head_len);
rrc->get_rb_name(lcid).c_str(), to_move, pdu_space, head_len);
}
// Pull SDUs from queue
@ -659,7 +666,7 @@ int rlc_am::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
if(tx_sdu->N_bytes == 0)
{
log->info("%s Complete SDU scheduled for tx. Stack latency: %ld us\n",
rb_id_text[lcid], tx_sdu->get_latency_us());
rrc->get_rb_name(lcid).c_str(), tx_sdu->get_latency_us());
pool->deallocate(tx_sdu);
tx_sdu = NULL;
}
@ -669,7 +676,7 @@ int rlc_am::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
pdu_space = 0;
log->debug("%s Building PDU - added SDU segment (len:%d) - pdu_space: %d, head_len: %d \n",
rb_id_text[lcid], to_move, pdu_space, head_len);
rrc->get_rb_name(lcid).c_str(), to_move, pdu_space, head_len);
}
if(tx_sdu)
@ -678,22 +685,22 @@ int rlc_am::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
// Set Poll bit
pdu_without_poll++;
byte_without_poll += (pdu->N_bytes + head_len);
log->debug("%s pdu_without_poll: %d\n", rb_id_text[lcid], pdu_without_poll);
log->debug("%s byte_without_poll: %d\n", rb_id_text[lcid], byte_without_poll);
log->debug("%s pdu_without_poll: %d\n", rrc->get_rb_name(lcid).c_str(), pdu_without_poll);
log->debug("%s byte_without_poll: %d\n", rrc->get_rb_name(lcid).c_str(), byte_without_poll);
if(poll_required())
{
log->debug("%s setting poll bit to request status\n", rb_id_text[lcid]);
log->debug("%s setting poll bit to request status\n", rrc->get_rb_name(lcid).c_str());
header.p = 1;
poll_sn = vt_s;
pdu_without_poll = 0;
byte_without_poll = 0;
poll_retx_timeout.start(t_poll_retx);
poll_retx_timeout.start(cfg.t_poll_retx);
}
// Set SN
header.sn = vt_s;
vt_s = (vt_s + 1)%MOD;
log->info("%s PDU scheduled for tx. SN: %d\n", rb_id_text[lcid], header.sn);
log->info("%s PDU scheduled for tx. SN: %d\n", rrc->get_rb_name(lcid).c_str(), header.sn);
// Place PDU in tx_window, write header and TX
tx_window[header.sn].buf = pdu;
@ -714,26 +721,26 @@ void rlc_am::handle_data_pdu(uint8_t *payload, uint32_t nof_bytes, rlc_amd_pdu_h
std::map<uint32_t, rlc_amd_rx_pdu_t>::iterator it;
log->info_hex(payload, nof_bytes, "%s Rx data PDU SN: %d",
rb_id_text[lcid], header.sn);
rrc->get_rb_name(lcid).c_str(), header.sn);
if(!inside_rx_window(header.sn)) {
if(header.p) {
log->info("%s Status packet requested through polling bit\n", rb_id_text[lcid]);
log->info("%s Status packet requested through polling bit\n", rrc->get_rb_name(lcid).c_str());
do_status = true;
}
log->info("%s SN: %d outside rx window [%d:%d] - discarding\n",
rb_id_text[lcid], header.sn, vr_r, vr_mr);
rrc->get_rb_name(lcid).c_str(), header.sn, vr_r, vr_mr);
return;
}
it = rx_window.find(header.sn);
if(rx_window.end() != it) {
if(header.p) {
log->info("%s Status packet requested through polling bit\n", rb_id_text[lcid]);
log->info("%s Status packet requested through polling bit\n", rrc->get_rb_name(lcid).c_str());
do_status = true;
}
log->info("%s Discarding duplicate SN: %d\n",
rb_id_text[lcid], header.sn);
rrc->get_rb_name(lcid).c_str(), header.sn);
return;
}
@ -766,7 +773,7 @@ void rlc_am::handle_data_pdu(uint8_t *payload, uint32_t nof_bytes, rlc_amd_pdu_h
// Check poll bit
if(header.p)
{
log->info("%s Status packet requested through polling bit\n", rb_id_text[lcid]);
log->info("%s Status packet requested through polling bit\n", rrc->get_rb_name(lcid).c_str());
poll_received = true;
// 36.322 v10 Section 5.2.3
@ -798,7 +805,7 @@ void rlc_am::handle_data_pdu(uint8_t *payload, uint32_t nof_bytes, rlc_amd_pdu_h
{
if(RX_MOD_BASE(vr_h) > RX_MOD_BASE(vr_r))
{
reordering_timeout.start(t_reordering);
reordering_timeout.start(cfg.t_reordering);
vr_x = vr_h;
}
}
@ -811,16 +818,16 @@ void rlc_am::handle_data_pdu_segment(uint8_t *payload, uint32_t nof_bytes, rlc_a
std::map<uint32_t, rlc_amd_rx_pdu_segments_t>::iterator it;
log->info_hex(payload, nof_bytes, "%s Rx data PDU segment. SN: %d, SO: %d",
rb_id_text[lcid], header.sn, header.so);
rrc->get_rb_name(lcid).c_str(), header.sn, header.so);
// Check inside rx window
if(!inside_rx_window(header.sn)) {
if(header.p) {
log->info("%s Status packet requested through polling bit\n", rb_id_text[lcid]);
log->info("%s Status packet requested through polling bit\n", rrc->get_rb_name(lcid).c_str());
do_status = true;
}
log->info("%s SN: %d outside rx window [%d:%d] - discarding\n",
rb_id_text[lcid], header.sn, vr_r, vr_mr);
rrc->get_rb_name(lcid).c_str(), header.sn, vr_r, vr_mr);
return;
}
@ -839,7 +846,7 @@ void rlc_am::handle_data_pdu_segment(uint8_t *payload, uint32_t nof_bytes, rlc_a
if(rx_segments.end() != it) {
if(header.p) {
log->info("%s Status packet requested through polling bit\n", rb_id_text[lcid]);
log->info("%s Status packet requested through polling bit\n", rrc->get_rb_name(lcid).c_str());
do_status = true;
}
@ -869,7 +876,7 @@ void rlc_am::handle_data_pdu_segment(uint8_t *payload, uint32_t nof_bytes, rlc_a
// Check poll bit
if(header.p)
{
log->info("%s Status packet requested through polling bit\n", rb_id_text[lcid]);
log->info("%s Status packet requested through polling bit\n", rrc->get_rb_name(lcid).c_str());
poll_received = true;
// 36.322 v10 Section 5.2.3
@ -887,23 +894,23 @@ void rlc_am::handle_data_pdu_segment(uint8_t *payload, uint32_t nof_bytes, rlc_a
void rlc_am::handle_control_pdu(uint8_t *payload, uint32_t nof_bytes)
{
log->info_hex(payload, nof_bytes, "%s Rx control PDU", rb_id_text[lcid]);
log->info_hex(payload, nof_bytes, "%s Rx control PDU", rrc->get_rb_name(lcid).c_str());
rlc_status_pdu_t status;
rlc_am_read_status_pdu(payload, nof_bytes, &status);
log->info("%s Rx Status PDU: %s\n", rb_id_text[lcid], rlc_am_to_string(&status).c_str());
log->info("%s Rx Status PDU: %s\n", rrc->get_rb_name(lcid).c_str(), rlc_am_to_string(&status).c_str());
poll_retx_timeout.reset();
// Handle ACKs and NACKs
std::map<uint32_t, rlc_amd_tx_pdu_t>::iterator it;
bool update_vt_a = true;
uint32_t i = vt_a;
uint32_t i = vt_a;
while(TX_MOD_BASE(i) < TX_MOD_BASE(status.ack_sn) &&
TX_MOD_BASE(i) < TX_MOD_BASE(vt_s))
{
std::map<uint32_t, rlc_amd_tx_pdu_t>::iterator it;
bool nack = false;
for(uint32_t j=0;j<status.N_nack;j++) {
if(status.nacks[j].nack_sn == i) {
@ -930,7 +937,7 @@ void rlc_am::handle_control_pdu(uint8_t *payload, uint32_t nof_bytes)
}
} else {
log->warning("%s invalid segment NACK received for SN %d. so_start: %d, so_end: %d, N_bytes: %d\n",
rb_id_text[lcid], i, status.nacks[j].so_start, status.nacks[j].so_end, it->second.buf->N_bytes);
rrc->get_rb_name(lcid).c_str(), i, status.nacks[j].so_start, status.nacks[j].so_end, it->second.buf->N_bytes);
}
}
@ -943,14 +950,16 @@ void rlc_am::handle_control_pdu(uint8_t *payload, uint32_t nof_bytes)
if(!nack) {
//ACKed SNs get marked and removed from tx_window if possible
it = tx_window.find(i);
if(tx_window.end() != it)
{
tx_window[i].is_acked = true;
if(tx_window.count(i) > 0) {
it = tx_window.find(i);
it->second.is_acked = true;
if(it->second.buf) {
pool->deallocate(it->second.buf);
it->second.buf = 0;
}
if(update_vt_a)
{
pool->deallocate(tx_window[i].buf);
tx_window.erase(i);
tx_window.erase(it);
vt_a = (vt_a + 1)%MOD;
vt_ms = (vt_ms + 1)%MOD;
}
@ -982,7 +991,7 @@ void rlc_am::reassemble_rx_sdus()
rx_sdu->N_bytes += len;
rx_window[vr_r].buf->msg += len;
rx_window[vr_r].buf->N_bytes -= len;
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU", rb_id_text[lcid]);
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU", rrc->get_rb_name(lcid).c_str());
rx_sdu->set_timestamp();
pdcp->write_pdu(lcid, rx_sdu);
rx_sdu = pool_allocate;
@ -998,7 +1007,7 @@ void rlc_am::reassemble_rx_sdus()
rx_sdu->N_bytes += rx_window[vr_r].buf->N_bytes;
if(rlc_am_end_aligned(rx_window[vr_r].header.fi))
{
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU", rb_id_text[lcid]);
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU", rrc->get_rb_name(lcid).c_str());
rx_sdu->set_timestamp();
pdcp->write_pdu(lcid, rx_sdu);
rx_sdu = pool_allocate;
@ -1042,7 +1051,7 @@ void rlc_am::debug_state()
{
log->debug("%s vt_a = %d, vt_ms = %d, vt_s = %d, poll_sn = %d "
"vr_r = %d, vr_mr = %d, vr_x = %d, vr_ms = %d, vr_h = %d\n",
rb_id_text[lcid], vt_a, vt_ms, vt_s, poll_sn,
rrc->get_rb_name(lcid).c_str(), vt_a, vt_ms, vt_s, poll_sn,
vr_r, vr_mr, vr_x, vr_ms, vr_h);
}

8
lib/src/upper/rlc_entity.cc
View File

@ -64,7 +64,7 @@ void rlc_entity::init(rlc_mode_t mode,
rlc->init(rlc_entity_log_, lcid_, pdcp_, rrc_, mac_timers_);
}
void rlc_entity::configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg)
void rlc_entity::configure(srslte_rlc_config_t cnfg)
{
if(rlc)
rlc->configure(cnfg);
@ -76,6 +76,12 @@ void rlc_entity::reset()
rlc = NULL;
}
void rlc_entity::empty_queue()
{
rlc->empty_queue();
}
bool rlc_entity::active()
{
return (rlc != NULL);

12
lib/src/upper/rlc_tm.cc
View File

@ -46,7 +46,7 @@ void rlc_tm::init(srslte::log *log_,
rrc = rrc_;
}
void rlc_tm::configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg)
void rlc_tm::configure(srslte_rlc_config_t cnfg)
{
log->error("Attempted to configure TM RLC entity");
}
@ -79,7 +79,7 @@ uint32_t rlc_tm::get_bearer()
// PDCP interface
void rlc_tm::write_sdu(byte_buffer_t *sdu)
{
log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU", rb_id_text[lcid]);
log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU", rrc->get_rb_name(lcid).c_str());
ul_queue.write(sdu);
}
@ -99,7 +99,7 @@ int rlc_tm::read_pdu(uint8_t *payload, uint32_t nof_bytes)
uint32_t pdu_size = ul_queue.size_tail_bytes();
if(pdu_size > nof_bytes)
{
log->error("TX %s PDU size larger than MAC opportunity\n", rb_id_text[lcid]);
log->error("TX %s PDU size larger than MAC opportunity\n", rrc->get_rb_name(lcid).c_str());
return 0;
}
byte_buffer_t *buf;
@ -107,13 +107,13 @@ int rlc_tm::read_pdu(uint8_t *payload, uint32_t nof_bytes)
pdu_size = buf->N_bytes;
memcpy(payload, buf->msg, buf->N_bytes);
log->info("%s Complete SDU scheduled for tx. Stack latency: %ld us\n",
rb_id_text[lcid], buf->get_latency_us());
rrc->get_rb_name(lcid).c_str(), buf->get_latency_us());
pool->deallocate(buf);
log->info_hex(payload, pdu_size, "TX %s, %s PDU", rb_id_text[lcid], rlc_mode_text[RLC_MODE_TM]);
log->info_hex(payload, pdu_size, "TX %s, %s PDU", rrc->get_rb_name(lcid).c_str(), rlc_mode_text[RLC_MODE_TM]);
return pdu_size;
}
void rlc_tm:: write_pdu(uint8_t *payload, uint32_t nof_bytes)
void rlc_tm::write_pdu(uint8_t *payload, uint32_t nof_bytes)
{
byte_buffer_t *buf = pool_allocate;
memcpy(buf->msg, payload, nof_bytes);

97
lib/src/upper/rlc_um.cc
View File

@ -27,7 +27,7 @@
#include "srslte/upper/rlc_um.h"
#define RX_MOD_BASE(x) (x-vr_uh-rx_window_size)%rx_mod
#define RX_MOD_BASE(x) (x-vr_uh-cfg.rx_window_size)%cfg.rx_mod
namespace srslte {
@ -65,41 +65,28 @@ void rlc_um::init(srslte::log *log_,
reordering_timeout_id = mac_timers->get_unique_id();
}
void rlc_um::configure(LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg)
void rlc_um::configure(srslte_rlc_config_t cnfg_)
{
switch(cnfg->rlc_mode)
cfg = cnfg_.um;
switch(cnfg_.rlc_mode)
{
case LIBLTE_RRC_RLC_MODE_UM_BI:
t_reordering = liblte_rrc_t_reordering_num[cnfg->dl_um_bi_rlc.t_reordering];
rx_sn_field_length = (rlc_umd_sn_size_t)cnfg->dl_um_bi_rlc.sn_field_len;
rx_window_size = (RLC_UMD_SN_SIZE_5_BITS == rx_sn_field_length) ? 16 : 512;
rx_mod = (RLC_UMD_SN_SIZE_5_BITS == rx_sn_field_length) ? 32 : 1024;
tx_sn_field_length = (rlc_umd_sn_size_t)cnfg->ul_um_bi_rlc.sn_field_len;
tx_mod = (RLC_UMD_SN_SIZE_5_BITS == tx_sn_field_length) ? 32 : 1024;
log->info("%s configured in %s mode: "
"t_reordering=%d ms, rx_sn_field_length=%u bits, tx_sn_field_length=%u bits\n",
rb_id_text[lcid], liblte_rrc_rlc_mode_text[cnfg->rlc_mode],
t_reordering,
rlc_umd_sn_size_num[rx_sn_field_length],
rlc_umd_sn_size_num[tx_sn_field_length]);
rrc->get_rb_name(lcid).c_str(), liblte_rrc_rlc_mode_text[cnfg_.rlc_mode],
cfg.t_reordering, rlc_umd_sn_size_num[cfg.rx_sn_field_length], rlc_umd_sn_size_num[cfg.rx_sn_field_length]);
break;
case LIBLTE_RRC_RLC_MODE_UM_UNI_UL:
tx_sn_field_length = (rlc_umd_sn_size_t)cnfg->ul_um_uni_rlc.sn_field_len;
tx_mod = (RLC_UMD_SN_SIZE_5_BITS == tx_sn_field_length) ? 32 : 1024;
log->info("%s configured in %s mode: tx_sn_field_length=%u bits\n",
rb_id_text[lcid], liblte_rrc_rlc_mode_text[cnfg->rlc_mode],
rlc_umd_sn_size_num[tx_sn_field_length]);
rrc->get_rb_name(lcid).c_str(), liblte_rrc_rlc_mode_text[cnfg_.rlc_mode],
rlc_umd_sn_size_num[cfg.rx_sn_field_length]);
break;
case LIBLTE_RRC_RLC_MODE_UM_UNI_DL:
t_reordering = liblte_rrc_t_reordering_num[cnfg->dl_um_uni_rlc.t_reordering];
rx_sn_field_length = (rlc_umd_sn_size_t)cnfg->dl_um_uni_rlc.sn_field_len;
rx_window_size = (RLC_UMD_SN_SIZE_5_BITS == rx_sn_field_length) ? 16 : 512;
rx_mod = (RLC_UMD_SN_SIZE_5_BITS == rx_sn_field_length) ? 32 : 1024;
log->info("%s configured in %s mode: "
"t_reordering=%d ms, rx_sn_field_length=%u bits\n",
rb_id_text[lcid], liblte_rrc_rlc_mode_text[cnfg->rlc_mode],
liblte_rrc_t_reordering_num[t_reordering],
rlc_umd_sn_size_num[rx_sn_field_length]);
rrc->get_rb_name(lcid).c_str(), liblte_rrc_rlc_mode_text[cnfg_.rlc_mode],
cfg.t_reordering, rlc_umd_sn_size_num[cfg.rx_sn_field_length]);
break;
default:
log->error("RLC configuration mode not recognized\n");
@ -159,7 +146,7 @@ uint32_t rlc_um::get_bearer()
void rlc_um::write_sdu(byte_buffer_t *sdu)
{
log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU", rb_id_text[lcid]);
log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU", rrc->get_rb_name(lcid).c_str());
tx_sdu_queue.write(sdu);
}
@ -222,14 +209,14 @@ void rlc_um::timer_expired(uint32_t timeout_id)
// 36.322 v10 Section 5.1.2.2.4
log->info("%s reordering timeout expiry - updating vr_ur and reassembling\n",
rb_id_text[lcid]);
rrc->get_rb_name(lcid).c_str());
log->warning("Lost PDU SN: %d\n", vr_ur);
pdu_lost = true;
rx_sdu->reset();
while(RX_MOD_BASE(vr_ur) < RX_MOD_BASE(vr_ux))
{
vr_ur = (vr_ur + 1)%rx_mod;
vr_ur = (vr_ur + 1)%cfg.rx_mod;
log->debug("Entering Reassemble from timeout id=%d\n", timeout_id);
reassemble_rx_sdus();
log->debug("Finished reassemble from timeout id=%d\n", timeout_id);
@ -237,7 +224,7 @@ void rlc_um::timer_expired(uint32_t timeout_id)
mac_timers->get(reordering_timeout_id)->stop();
if(RX_MOD_BASE(vr_uh) > RX_MOD_BASE(vr_ur))
{
mac_timers->get(reordering_timeout_id)->set(this, t_reordering);
mac_timers->get(reordering_timeout_id)->set(this, cfg.t_reordering);
mac_timers->get(reordering_timeout_id)->run();
vr_ux = vr_uh;
}
@ -274,7 +261,7 @@ int rlc_um::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
header.fi = RLC_FI_FIELD_START_AND_END_ALIGNED;
header.sn = vt_us;
header.N_li = 0;
header.sn_size = tx_sn_field_length;
header.sn_size = cfg.tx_sn_field_length;
uint32_t to_move = 0;
uint32_t last_li = 0;
@ -286,7 +273,7 @@ int rlc_um::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
if(pdu_space <= head_len)
{
log->warning("%s Cannot build a PDU - %d bytes available, %d bytes required for header\n",
rb_id_text[lcid], nof_bytes, head_len);
rrc->get_rb_name(lcid).c_str(), nof_bytes, head_len);
return 0;
}
@ -296,7 +283,7 @@ int rlc_um::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
uint32_t space = pdu_space-head_len;
to_move = space >= tx_sdu->N_bytes ? tx_sdu->N_bytes : space;
log->debug("%s adding remainder of SDU segment - %d bytes of %d remaining\n",
rb_id_text[lcid], to_move, tx_sdu->N_bytes);
rrc->get_rb_name(lcid).c_str(), to_move, tx_sdu->N_bytes);
memcpy(pdu_ptr, tx_sdu->msg, to_move);
last_li = to_move;
pdu_ptr += to_move;
@ -306,7 +293,7 @@ int rlc_um::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
if(tx_sdu->N_bytes == 0)
{
log->info("%s Complete SDU scheduled for tx. Stack latency: %ld us\n",
rb_id_text[lcid], tx_sdu->get_latency_us());
rrc->get_rb_name(lcid).c_str(), tx_sdu->get_latency_us());
pool->deallocate(tx_sdu);
tx_sdu = NULL;
}
@ -325,7 +312,7 @@ int rlc_um::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
uint32_t space = pdu_space-head_len;
to_move = space >= tx_sdu->N_bytes ? tx_sdu->N_bytes : space;
log->debug("%s adding new SDU segment - %d bytes of %d remaining\n",
rb_id_text[lcid], to_move, tx_sdu->N_bytes);
rrc->get_rb_name(lcid).c_str(), to_move, tx_sdu->N_bytes);
memcpy(pdu_ptr, tx_sdu->msg, to_move);
last_li = to_move;
pdu_ptr += to_move;
@ -335,7 +322,7 @@ int rlc_um::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
if(tx_sdu->N_bytes == 0)
{
log->info("%s Complete SDU scheduled for tx. Stack latency: %ld us\n",
rb_id_text[lcid], tx_sdu->get_latency_us());
rrc->get_rb_name(lcid).c_str(), tx_sdu->get_latency_us());
pool->deallocate(tx_sdu);
tx_sdu = NULL;
}
@ -347,14 +334,14 @@ int rlc_um::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
// Set SN
header.sn = vt_us;
vt_us = (vt_us + 1)%tx_mod;
vt_us = (vt_us + 1)%cfg.tx_mod;
// Add header and TX
log->debug("%s packing PDU with length %d\n", rb_id_text[lcid], pdu->N_bytes);
log->debug("%s packing PDU with length %d\n", rrc->get_rb_name(lcid).c_str(), pdu->N_bytes);
rlc_um_write_data_pdu_header(&header, pdu);
memcpy(payload, pdu->msg, pdu->N_bytes);
uint32_t ret = pdu->N_bytes;
log->debug("%sreturning length %d\n", rb_id_text[lcid], pdu->N_bytes);
log->debug("%sreturning length %d\n", rrc->get_rb_name(lcid).c_str(), pdu->N_bytes);
pool->deallocate(pdu);
debug_state();
@ -365,23 +352,23 @@ void rlc_um::handle_data_pdu(uint8_t *payload, uint32_t nof_bytes)
{
std::map<uint32_t, rlc_umd_pdu_t>::iterator it;
rlc_umd_pdu_header_t header;
rlc_um_read_data_pdu_header(payload, nof_bytes, rx_sn_field_length, &header);
rlc_um_read_data_pdu_header(payload, nof_bytes, cfg.rx_sn_field_length, &header);
log->info_hex(payload, nof_bytes, "RX %s Rx data PDU SN: %d",
rb_id_text[lcid], header.sn);
rrc->get_rb_name(lcid).c_str(), header.sn);
if(RX_MOD_BASE(header.sn) >= RX_MOD_BASE(vr_uh-rx_window_size) &&
if(RX_MOD_BASE(header.sn) >= RX_MOD_BASE(vr_uh-cfg.rx_window_size) &&
RX_MOD_BASE(header.sn) < RX_MOD_BASE(vr_ur))
{
log->info("%s SN: %d outside rx window [%d:%d] - discarding\n",
rb_id_text[lcid], header.sn, vr_ur, vr_uh);
rrc->get_rb_name(lcid).c_str(), header.sn, vr_ur, vr_uh);
return;
}
it = rx_window.find(header.sn);
if(rx_window.end() != it)
{
log->info("%s Discarding duplicate SN: %d\n",
rb_id_text[lcid], header.sn);
rrc->get_rb_name(lcid).c_str(), header.sn);
return;
}
@ -403,7 +390,7 @@ void rlc_um::handle_data_pdu(uint8_t *payload, uint32_t nof_bytes)
// Update vr_uh
if(!inside_reordering_window(header.sn))
vr_uh = (header.sn + 1)%rx_mod;
vr_uh = (header.sn + 1)%cfg.rx_mod;
// Reassemble and deliver SDUs, while updating vr_ur
log->debug("Entering Reassemble from received PDU\n");
@ -423,7 +410,7 @@ void rlc_um::handle_data_pdu(uint8_t *payload, uint32_t nof_bytes)
{
if(RX_MOD_BASE(vr_uh) > RX_MOD_BASE(vr_ur))
{
mac_timers->get(reordering_timeout_id)->set(this, t_reordering);
mac_timers->get(reordering_timeout_id)->set(this, cfg.t_reordering);
mac_timers->get(reordering_timeout_id)->run();
vr_ux = vr_uh;
}
@ -452,11 +439,11 @@ void rlc_um::reassemble_rx_sdus()
rx_sdu->N_bytes += len;
rx_window[vr_ur].buf->msg += len;
rx_window[vr_ur].buf->N_bytes -= len;
if((pdu_lost && !rlc_um_start_aligned(rx_window[vr_ur].header.fi)) || (vr_ur != ((vr_ur_in_rx_sdu+1)%rx_mod))) {
if((pdu_lost && !rlc_um_start_aligned(rx_window[vr_ur].header.fi)) || (vr_ur != ((vr_ur_in_rx_sdu+1)%cfg.rx_mod))) {
log->warning("Dropping remainder of lost PDU (lower edge middle segments, vr_ur=%d, vr_ur_in_rx_sdu=%d)\n", vr_ur, vr_ur_in_rx_sdu);
rx_sdu->reset();
} else {
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU vr_ur=%d, i=%d (lower edge middle segments)", rb_id_text[lcid], vr_ur, i);
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU vr_ur=%d, i=%d (lower edge middle segments)", rrc->get_rb_name(lcid).c_str(), vr_ur, i);
rx_sdu->set_timestamp();
pdcp->write_pdu(lcid, rx_sdu);
rx_sdu = pool_allocate;
@ -476,7 +463,7 @@ void rlc_um::reassemble_rx_sdus()
log->warning("Dropping remainder of lost PDU (lower edge last segments)\n");
rx_sdu->reset();
} else {
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU vr_ur=%d (lower edge last segments)", rb_id_text[lcid], vr_ur);
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU vr_ur=%d (lower edge last segments)", rrc->get_rb_name(lcid).c_str(), vr_ur);
rx_sdu->set_timestamp();
pdcp->write_pdu(lcid, rx_sdu);
rx_sdu = pool_allocate;
@ -489,7 +476,7 @@ void rlc_um::reassemble_rx_sdus()
rx_window.erase(vr_ur);
}
vr_ur = (vr_ur + 1)%rx_mod;
vr_ur = (vr_ur + 1)%cfg.rx_mod;
}
@ -502,15 +489,15 @@ void rlc_um::reassemble_rx_sdus()
int len = rx_window[vr_ur].header.li[i];
memcpy(&rx_sdu->msg[rx_sdu->N_bytes], rx_window[vr_ur].buf->msg, len);
log->debug("Concatenating %d bytes in to current length %d. rx_window remaining bytes=%d, vr_ur_in_rx_sdu=%d, vr_ur=%d, rx_mod=%d, last_mod=%d\n",
len, rx_sdu->N_bytes, rx_window[vr_ur].buf->N_bytes, vr_ur_in_rx_sdu, vr_ur, rx_mod, (vr_ur_in_rx_sdu+1)%rx_mod);
len, rx_sdu->N_bytes, rx_window[vr_ur].buf->N_bytes, vr_ur_in_rx_sdu, vr_ur, cfg.rx_mod, (vr_ur_in_rx_sdu+1)%cfg.rx_mod);
rx_sdu->N_bytes += len;
rx_window[vr_ur].buf->msg += len;
rx_window[vr_ur].buf->N_bytes -= len;
if((pdu_lost && !rlc_um_start_aligned(rx_window[vr_ur].header.fi)) || (vr_ur != ((vr_ur_in_rx_sdu+1)%rx_mod))) {
if((pdu_lost && !rlc_um_start_aligned(rx_window[vr_ur].header.fi)) || (vr_ur != ((vr_ur_in_rx_sdu+1)%cfg.rx_mod))) {
log->warning("Dropping remainder of lost PDU (update vr_ur middle segments, vr_ur=%d, vr_ur_in_rx_sdu=%d)\n", vr_ur, vr_ur_in_rx_sdu);
rx_sdu->reset();
} else {
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU vr_ur=%d, i=%d, (update vr_ur middle segments)", rb_id_text[lcid], vr_ur, i);
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU vr_ur=%d, i=%d, (update vr_ur middle segments)", rrc->get_rb_name(lcid).c_str(), vr_ur, i);
rx_sdu->set_timestamp();
pdcp->write_pdu(lcid, rx_sdu);
rx_sdu = pool_allocate;
@ -530,7 +517,7 @@ void rlc_um::reassemble_rx_sdus()
log->warning("Dropping remainder of lost PDU (update vr_ur last segments)\n");
rx_sdu->reset();
} else {
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU vr_ur=%d (update vr_ur last segments)", rb_id_text[lcid], vr_ur);
log->info_hex(rx_sdu->msg, rx_sdu->N_bytes, "%s Rx SDU vr_ur=%d (update vr_ur last segments)", rrc->get_rb_name(lcid).c_str(), vr_ur);
rx_sdu->set_timestamp();
pdcp->write_pdu(lcid, rx_sdu);
rx_sdu = pool_allocate;
@ -542,13 +529,13 @@ void rlc_um::reassemble_rx_sdus()
pool->deallocate(rx_window[vr_ur].buf);
rx_window.erase(vr_ur);
vr_ur = (vr_ur + 1)%rx_mod;
vr_ur = (vr_ur + 1)%cfg.rx_mod;
}
}
bool rlc_um::inside_reordering_window(uint16_t sn)
{
if(RX_MOD_BASE(sn) >= RX_MOD_BASE(vr_uh-rx_window_size) &&
if(RX_MOD_BASE(sn) >= RX_MOD_BASE(vr_uh-cfg.rx_window_size) &&
RX_MOD_BASE(sn) < RX_MOD_BASE(vr_uh))
{
return true;
@ -560,7 +547,7 @@ bool rlc_um::inside_reordering_window(uint16_t sn)
void rlc_um::debug_state()
{
log->debug("%s vt_us = %d, vr_ur = %d, vr_ux = %d, vr_uh = %d \n",
rb_id_text[lcid], vt_us, vr_ur, vr_ux, vr_uh);
rrc->get_rb_name(lcid).c_str(), vt_us, vr_ur, vr_ux, vr_uh);
}

11
lib/test/upper/rlc_am_test.cc
View File

@ -67,6 +67,7 @@ public:
// RRC interface
void max_retx_attempted(){}
std::string get_rb_name(uint32_t lcid) { return std::string(""); }
byte_buffer_t *sdus[10];
int n_sdus;
@ -101,6 +102,7 @@ void basic_test()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -180,6 +182,7 @@ void concat_test()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -244,6 +247,7 @@ void segment_test()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -326,6 +330,7 @@ void retx_test()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -422,6 +427,7 @@ void resegment_test_1()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -531,6 +537,7 @@ void resegment_test_2()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -637,6 +644,7 @@ void resegment_test_3()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -739,6 +747,7 @@ void resegment_test_4()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -841,6 +850,7 @@ void resegment_test_5()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);
@ -942,6 +952,7 @@ void resegment_test_6()
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
rlc1.configure(&cnfg);
rlc2.configure(&cnfg);

1
lib/test/upper/rlc_um_test.cc
View File

@ -71,6 +71,7 @@ public:
// RRC interface
void max_retx_attempted(){}
std::string get_rb_name(uint32_t lcid) { return std::string(""); }
byte_buffer_t *sdus[5];
int n_sdus;

6
srsenb/drb.conf.example
View File

@ -15,14 +15,14 @@ qci_config = (
};
dl_um = {
sn_field_length = 10;
t_reordering = 80;
t_reordering = 45;
};
};
logical_channel_config = {
priority = 11;
priority = 13;
prioritized_bit_rate = -1;
bucket_size_duration = 100;
log_chan_group = 3;
log_chan_group = 2;
};
},
{

11
srsenb/enb.conf.example
View File

@ -12,6 +12,7 @@
# mnc: Mobile Network Code
# mme_addr: IP address of MME for S1 connnection
# gtp_bind_addr: Local IP address to bind for GTP connection
# n_prb: Number of Physical Resource Blocks (6,15,25,50,75,100)
#
#####################################################################
[enb]
@ -57,8 +58,8 @@ drb_config = drb.conf
#####################################################################
[rf]
dl_earfcn = 3400
tx_gain = 70
rx_gain = 50
tx_gain = 80
rx_gain = 60
#device_name = auto
#device_args = auto
@ -121,7 +122,7 @@ enable = false
#pdsch_mcs = -1
#pdsch_max_mcs = -1
#pusch_mcs = -1
pusch_max_mcs = 16
#pusch_max_mcs = -1
nof_ctrl_symbols = 2
#####################################################################
@ -141,9 +142,9 @@ nof_ctrl_symbols = 2
#pdsch_max_its = 4
#nof_phy_threads = 2
#pregenerate_signals = false
#tx_amplitude = 0.8
#tx_amplitude = 0.6
#link_failure_nof_err = 50
#rrc_inactivity_timer = 30000
#rrc_inactivity_timer = 10000
#max_prach_offset_us = 30
#####################################################################

2
srsenb/hdr/mac/scheduler.h
View File

@ -108,7 +108,7 @@ public:
int ul_crc_info(uint32_t tti, uint16_t rnti, bool crc);
int ul_sr_info(uint32_t tti, uint16_t rnti);
int ul_bsr(uint16_t rnti, uint32_t lcid, uint32_t bsr);
int ul_bsr(uint16_t rnti, uint32_t lcid, uint32_t bsr, bool set_value = true);
int ul_recv_len(uint16_t rnti, uint32_t lcid, uint32_t len);
int ul_phr(uint16_t rnti, int phr);
int ul_cqi_info(uint32_t tti, uint16_t rnti, uint32_t cqi, uint32_t ul_ch_code);

3
srsenb/hdr/mac/scheduler_harq.h
View File

@ -104,7 +104,8 @@ public:
void set_alloc(ul_alloc_t alloc);
void same_alloc();
bool is_adaptive_retx();
void reset_pending_data();
bool has_pending_ack();
uint32_t get_pending_data();

17
srsenb/hdr/mac/scheduler_ue.h
View File

@ -62,7 +62,7 @@ public:
void rem_bearer(uint32_t lc_id);
void dl_buffer_state(uint8_t lc_id, uint32_t tx_queue, uint32_t retx_queue);
void ul_buffer_state(uint8_t lc_id, uint32_t bsr);
void ul_buffer_state(uint8_t lc_id, uint32_t bsr, bool set_value = true);
void ul_phr(int phr);
void mac_buffer_state(uint32_t ce_code);
void ul_recv_len(uint32_t lcid, uint32_t len);
@ -114,8 +114,10 @@ public:
uint32_t get_max_retx();
bool get_pucch_sched(uint32_t current_tti, uint32_t prb_idx[2], uint32_t *L);
bool pucch_sr_collision(uint32_t current_tti, uint32_t n_cce);
bool pucch_sr_collision(uint32_t current_tti, uint32_t n_cce);
uint32_t get_pending_ul_old_data();
private:
typedef struct {
@ -126,12 +128,13 @@ private:
} ue_bearer_t;
bool is_sr_triggered();
uint32_t get_pending_ul_old_data();
int alloc_pdu(int tbs, sched_interface::dl_sched_pdu_t* pdu);
int alloc_pdu(int tbs, sched_interface::dl_sched_pdu_t* pdu);
static uint32_t format1_count_prb(uint32_t bitmask, uint32_t cell_nof_prb);
static int cqi_to_tbs(uint32_t cqi, uint32_t nof_prb, uint32_t nof_re, uint32_t max_mcs, uint32_t *mcs);
static int alloc_tbs(uint32_t cqi, uint32_t nof_prb, uint32_t nof_re, uint32_t req_bytes, uint32_t max_mcs, int *mcs);
static int cqi_to_tbs(uint32_t cqi, uint32_t nof_prb, uint32_t nof_re, uint32_t max_mcs, uint32_t max_Qm, uint32_t *mcs);
int alloc_tbs_dl(uint32_t nof_prb, uint32_t nof_re, uint32_t req_bytes, int *mcs);
int alloc_tbs_ul(uint32_t nof_prb, uint32_t nof_re, uint32_t req_bytes, int *mcs);
int alloc_tbs(uint32_t nof_prb, uint32_t nof_re, uint32_t req_bytes, bool is_ul, int *mcs);
static bool bearer_is_ul(ue_bearer_t *lch);
static bool bearer_is_dl(ue_bearer_t *lch);

12
srsenb/hdr/mac/ue.h
View File

@ -58,6 +58,10 @@ public:
}
virtual ~ue() {
for (int i=0;i<NOF_HARQ_PROCESSES;i++) {
srslte_softbuffer_rx_free(&softbuffer_rx[i]);
srslte_softbuffer_tx_free(&softbuffer_tx[i]);
}
pthread_mutex_destroy(&mutex);
}
@ -81,7 +85,9 @@ public:
uint32_t rl_failure();
void rl_failure_reset();
void set_lcg(uint32_t lcid, uint32_t lcg);
void metrics_read(srsenb::mac_metrics_t* metrics);
void metrics_rx(bool crc, uint32_t tbs);
void metrics_tx(bool crc, uint32_t tbs);
@ -96,7 +102,9 @@ private:
void allocate_ce(srslte::sch_pdu *pdu, uint32_t lcid);
void metrics_phr(float phr);
uint32_t phr_counter;
uint32_t phr_counter;
std::vector<uint32_t> lc_groups[4];
mac_metrics_t metrics;

26
srsenb/hdr/upper/common_enb.h
View File

@ -43,6 +43,32 @@ namespace srsenb {
#define SRSENB_N_DRB 8
#define SRSENB_N_RADIO_BEARERS 11
typedef enum{
RB_ID_SRB0 = 0,
RB_ID_SRB1,
RB_ID_SRB2,
RB_ID_DRB1,
RB_ID_DRB2,
RB_ID_DRB3,
RB_ID_DRB4,
RB_ID_DRB5,
RB_ID_DRB6,
RB_ID_DRB7,
RB_ID_DRB8,
RB_ID_N_ITEMS,
}rb_id_t;
static const char rb_id_text[RB_ID_N_ITEMS][20] = { "SRB0",
"SRB1",
"SRB2",
"DRB1",
"DRB2",
"DRB3",
"DRB4",
"DRB5",
"DRB6",
"DRB7",
"DRB8"};
// Cat 3 UE - Max number of DL-SCH transport block bits received within a TTI
// 3GPP 36.306 Table 4.1.1
#define SRSENB_MAX_BUFFER_SIZE_BITS 102048

3
srsenb/hdr/upper/pdcp.h
View File

@ -51,7 +51,7 @@ public:
void add_user(uint16_t rnti);
void rem_user(uint16_t rnti);
void write_sdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t *sdu);
void add_bearer(uint16_t rnti, uint32_t lcid, LIBLTE_RRC_PDCP_CONFIG_STRUCT *cnfg=NULL);
void add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_pdcp_config_t cnfg);
void config_security(uint16_t rnti,
uint32_t lcid,
uint8_t *k_rrc_enc_,
@ -89,6 +89,7 @@ private:
void write_pdu_bcch_bch(srslte::byte_buffer_t *pdu);
void write_pdu_bcch_dlsch(srslte::byte_buffer_t *pdu);
void write_pdu_pcch(srslte::byte_buffer_t *pdu);
std::string get_rb_name(uint32_t lcid);
};
class user_interface

4
srsenb/hdr/upper/rlc.h
View File

@ -50,10 +50,11 @@ public:
void add_user(uint16_t rnti);
void rem_user(uint16_t rnti);
void add_bearer(uint16_t rnti, uint32_t lcid);
void add_bearer(uint16_t rnti, uint32_t lcid, LIBLTE_RRC_RLC_CONFIG_STRUCT *cnfg);
void add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_rlc_config_t cnfg);
// rlc_interface_pdcp
void write_sdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t *sdu);
std::string get_rb_name(uint32_t lcid);
// rlc_interface_mac
int read_pdu(uint16_t rnti, uint32_t lcid, uint8_t *payload, uint32_t nof_bytes);
@ -73,6 +74,7 @@ private:
void write_pdu_bcch_dlsch(srslte::byte_buffer_t *sdu);
void write_pdu_pcch(srslte::byte_buffer_t *sdu);
void max_retx_attempted();
std::string get_rb_name(uint32_t lcid);
uint16_t rnti;
srsenb::pdcp_interface_rlc *pdcp;

4
srsenb/rr.conf.example
View File

@ -9,7 +9,7 @@ mac_cnfg =
ulsch_cnfg =
{
max_harq_tx = 4;
periodic_bsr_timer = 5; // in ms
periodic_bsr_timer = 40; // in ms
retx_bsr_timer = 320; // in ms
};
@ -28,7 +28,7 @@ phy_cnfg =
{
beta_offset_ack_idx = 10;
beta_offset_ri_idx = 5;
beta_offset_cqi_idx = 5;
beta_offset_cqi_idx = 10;
};
// PUCCH-SR resources are scheduled on time-frequeny domain first, then multiplexed in the same resource.

30
srsenb/sib.conf.example
View File

@ -23,9 +23,9 @@ sib2 =
rach_cnfg =
{
num_ra_preambles = 52;
preamble_init_rx_target_pwr = -108;
preamble_init_rx_target_pwr = -104;
pwr_ramping_step = 6; // in dB
preamble_trans_max = 7;
preamble_trans_max = 10;
ra_resp_win_size = 10; // in ms
mac_con_res_timer = 64; // in ms
max_harq_msg3_tx = 4;
@ -53,14 +53,14 @@ sib2 =
pdsch_cnfg =
{
p_b = 0;
rs_power = -4;
rs_power = 20;
};
pusch_cnfg =
{
n_sb = 1;
hopping_mode = "inter-subframe";
pusch_hopping_offset = 2;
enable_64_qam = false;
enable_64_qam = false; // 64QAM PUSCH is not currently enabled
ul_rs =
{
cyclic_shift = 0;
@ -71,25 +71,25 @@ sib2 =
};
pucch_cnfg =
{
delta_pucch_shift = 1;
n_rb_cqi = 1;
delta_pucch_shift = 2;
n_rb_cqi = 2;
n_cs_an = 0;
n1_pucch_an = 2;
n1_pucch_an = 12;
};
ul_pwr_ctrl =
{
p0_nominal_pusch = -108;
alpha = 1.0;
p0_nominal_pucch = -88;
p0_nominal_pusch = -85;
alpha = 0.7;
p0_nominal_pucch = -107;
delta_flist_pucch =
{
format_1 = 2;
format_1 = 0;
format_1b = 3;
format_2 = 0;
format_2a = 0;
format_2b = 0;
format_2 = 1;
format_2a = 2;
format_2b = 2;
};
delta_preamble_msg3 = 4;
delta_preamble_msg3 = 8;
};
ul_cp_length = "Normal";
};

6
srsenb/src/CMakeLists.txt
View File

@ -31,7 +31,9 @@ target_link_libraries(srsenb srsenb_upper
if (RPATH)
set_target_properties(srsenb PROPERTIES INSTALL_RPATH ".")
endif (RPATH)
endif (RPATH)
install(TARGETS srsenb DESTINATION ${RUNTIME_DIR})
########################################################################
# Option to run command after build (useful for remote builds)
@ -42,3 +44,5 @@ if (NOT ${BUILDENB_CMD} STREQUAL "")
else(NOT ${BUILDENB_CMD} STREQUAL "")
message(STATUS "No post-build-ENB command defined")
endif (NOT ${BUILDENB_CMD} STREQUAL "")
install(TARGETS srsenb DESTINATION ${RUNTIME_DIR})

9
srsenb/src/mac/mac.cc
View File

@ -33,6 +33,7 @@
#include <strings.h>
#include <pthread.h>
#include <unistd.h>
#include <srslte/interfaces/sched_interface.h>
#include "srslte/common/log.h"
#include "mac/mac.h"
@ -163,7 +164,9 @@ int mac::rlc_buffer_state(uint16_t rnti, uint32_t lc_id, uint32_t tx_queue, uint
int mac::bearer_ue_cfg(uint16_t rnti, uint32_t lc_id, sched_interface::ue_bearer_cfg_t* cfg)
{
if (ue_db.count(rnti)) {
if (ue_db.count(rnti)) {
// configure BSR group in UE
ue_db[rnti]->set_lcg(lc_id, (uint32_t) cfg->group);
return scheduler.bearer_ue_cfg(rnti, lc_id, cfg);
} else {
Error("User rnti=0x%x not found\n", rnti);
@ -259,7 +262,7 @@ void mac::rl_failure(uint16_t rnti)
if (ue_db.count(rnti)) {
uint32_t nof_fails = ue_db[rnti]->rl_failure();
if (nof_fails >= (uint32_t) args.link_failure_nof_err && args.link_failure_nof_err > 0) {
Info("Detected PUSCH failure for rnti=0x%x\n", rnti);
Info("Detected Uplink failure for rnti=0x%x\n", rnti);
rrc_h->rl_failure(rnti);
ue_db[rnti]->rl_failure_reset();
}
@ -384,7 +387,7 @@ int mac::rach_detected(uint32_t tti, uint32_t preamble_idx, uint32_t time_adv)
}
// Save RA info
pending_rars[ra_id].preamble_idx = preamble_idx;
pending_rars[ra_id].ta_cmd = time_adv;
pending_rars[ra_id].ta_cmd = 2*time_adv;
pending_rars[ra_id].temp_crnti = last_rnti;
// Add new user to the scheduler so that it can RX/TX SRB0

20
srsenb/src/mac/scheduler.cc
View File

@ -302,12 +302,12 @@ int sched::ul_cqi_info(uint32_t tti, uint16_t rnti, uint32_t cqi, uint32_t ul_ch
return ret;
}
int sched::ul_bsr(uint16_t rnti, uint32_t lcid, uint32_t bsr)
int sched::ul_bsr(uint16_t rnti, uint32_t lcid, uint32_t bsr, bool set_value)
{
pthread_mutex_lock(&mutex);
int ret = 0;
if (ue_db.count(rnti)) {
ue_db[rnti].ul_buffer_state(lcid, bsr);
ue_db[rnti].ul_buffer_state(lcid, bsr, set_value);
} else {
Error("User rnti=0x%x not found\n", rnti);
ret = -1;
@ -792,13 +792,13 @@ int sched::ul_sched(uint32_t tti, srsenb::sched_interface::ul_sched_res_t* sched
user->unset_sr();
}
log_h->info("SCHED: %s %s rnti=0x%x, pid=%d, dci=%d,%d, grant=%d,%d, n_rtx=%d, tbs=%d, bsr=%d (%d)\n",
log_h->info("SCHED: %s %s rnti=0x%x, pid=%d, dci=%d,%d, grant=%d,%d, n_rtx=%d, tbs=%d, bsr=%d (%d-%d)\n",
is_rar?"RAR":"UL",
is_newtx?"tx":"retx",
rnti, h->get_id(),
sched_result->pusch[nof_dci_elems].dci_location.L, sched_result->pusch[nof_dci_elems].dci_location.ncce,
alloc.RB_start, alloc.L, h->nof_retx(), sched_result->pusch[nof_dci_elems].tbs,
user->get_pending_ul_new_data(current_tti),pending_data_before);
user->get_pending_ul_new_data(current_tti),pending_data_before, user->get_pending_ul_old_data());
nof_dci_elems++;
} else {
@ -812,8 +812,16 @@ int sched::ul_sched(uint32_t tti, srsenb::sched_interface::ul_sched_res_t* sched
}
}
}
}
}
// Update pending data counters after this TTI
for(std::map<uint16_t, sched_ue>::iterator iter=ue_db.begin(); iter!=ue_db.end(); ++iter) {
sched_ue *user = (sched_ue *) &iter->second;
uint16_t rnti = (uint16_t) iter->first;
user->get_ul_harq(current_tti)->reset_pending_data();
}
sched_result->nof_dci_elems = nof_dci_elems;
sched_result->nof_phich_elems = nof_phich_elems;

17
srsenb/src/mac/scheduler_harq.cc
View File

@ -98,7 +98,7 @@ bool harq_proc::get_ack()
void harq_proc::set_ack(bool ack_)
{
ack = ack_;
ack_received = true;
ack_received = true;
log_h->debug("ACK=%d received pid=%d, n_rtx=%d, max_retx=%d\n", ack_, id, n_rtx, max_retx);
if (n_rtx >= max_retx) {
Warning("SCHED: discarting TB pid=%d, tti=%d, maximum number of retx exceeded (%d)\n", id, tti, max_retx);
@ -229,13 +229,22 @@ bool ul_harq_proc::has_pending_ack()
active = false;
}
if (!active) {
pending_data = 0;
need_ack = false;
need_ack = false;
}
return ret;
}
uint32_t ul_harq_proc::get_pending_data()
void ul_harq_proc::reset_pending_data()
{
if (!active) {
pending_data = 0;
}
}
uint32_t ul_harq_proc::get_pending_data()
{
return pending_data;
}

103
srsenb/src/mac/scheduler_ue.cc
View File

@ -26,6 +26,8 @@
#include <string.h>
#include <boost/concept_check.hpp>
#include <srslte/interfaces/sched_interface.h>
#include <srslte/phy/phch/pucch.h>
#include "srslte/srslte.h"
#include "srslte/common/pdu.h"
@ -163,12 +165,17 @@ void sched_ue::phy_config_enabled(uint32_t tti, bool enabled)
phy_config_dedicated_enabled = enabled;
}
void sched_ue::ul_buffer_state(uint8_t lc_id, uint32_t bsr)
void sched_ue::ul_buffer_state(uint8_t lc_id, uint32_t bsr, bool set_value)
{
if (lc_id < sched_interface::MAX_LC) {
lch[lc_id].bsr = bsr;
Debug("SCHED: UL lcid=%d buffer_state=%d\n", lc_id, bsr);
}
if (set_value) {
lch[lc_id].bsr = bsr;
} else {
lch[lc_id].bsr += bsr;
}
}
Debug("SCHED: bsr=%d, lcid=%d, bsr={%d,%d,%d,%d}\n", bsr, lc_id,
lch[0].bsr, lch[1].bsr, lch[2].bsr, lch[3].bsr);
}
void sched_ue::ul_phr(int phr)
@ -230,7 +237,8 @@ bool sched_ue::get_pucch_sched(uint32_t current_tti, uint32_t prb_idx[2], uint32
if (!phy_config_dedicated_enabled) {
return false;
}
srslte_pucch_sched_t pucch_sched;
srslte_pucch_sched_t pucch_sched;
pucch_sched.sps_enabled = false;
pucch_sched.n_pucch_sr = cfg.sr_N_pucch;
pucch_sched.n_pucch_2 = cfg.n_pucch_cqi;
pucch_sched.N_pucch_1 = cfg.pucch_cfg.n1_pucch_an;
@ -239,7 +247,7 @@ bool sched_ue::get_pucch_sched(uint32_t current_tti, uint32_t prb_idx[2], uint32
// First check if it has pending ACKs
for (int i=0;i<SCHED_MAX_HARQ_PROC;i++) {
if (((dl_harq[i].get_tti()+8)%10240) == current_tti) {
if (((dl_harq[i].get_tti()+4)%10240) == current_tti) {
uint32_t n_pucch = srslte_pucch_get_npucch(dl_harq[i].get_n_cce(), SRSLTE_PUCCH_FORMAT_1A, has_sr, &pucch_sched);
if (prb_idx) {
for (int i=0;i<2;i++) {
@ -249,7 +257,7 @@ bool sched_ue::get_pucch_sched(uint32_t current_tti, uint32_t prb_idx[2], uint32
if (L) {
*L = 1;
}
Debug("SCHED: Reserved Format1A PUCCH for rnti=0x%x, n_prb=%d,%d, n_pucch=%d\n", rnti, prb_idx[0], prb_idx[1], n_pucch);
Info("SCHED: Reserved Format1A PUCCH for rnti=0x%x, n_prb=%d,%d, n_pucch=%d\n", rnti, prb_idx[0], prb_idx[1], n_pucch);
return true;
}
}
@ -263,9 +271,24 @@ bool sched_ue::get_pucch_sched(uint32_t current_tti, uint32_t prb_idx[2], uint32
if (L) {
*L = 1;
}
Debug("SCHED: Reserved Format1 PUCCH for rnti=0x%x, n_prb=%d,%d, n_pucch=%d\n", rnti, prb_idx[0], prb_idx[1], cfg.sr_N_pucch);
Info("SCHED: Reserved Format1 PUCCH for rnti=0x%x, n_prb=%d,%d, n_pucch=%d\n", rnti, prb_idx[0], prb_idx[1], cfg.sr_N_pucch);
return true;
}
// Finally check Format2 (periodic CQI)
if (cfg.cqi_enabled && srslte_cqi_send(cfg.cqi_idx, current_tti)) {
if (prb_idx) {
for (int i=0;i<2;i++) {
prb_idx[i] = srslte_pucch_n_prb(&cfg.pucch_cfg, SRSLTE_PUCCH_FORMAT_2, cfg.cqi_pucch, cell.nof_prb, cell.cp, i);
}
}
if(L) {
*L = 2;
}
Info("SCHED: Reserved Format2 PUCCH for rnti=0x%x, n_prb=%d,%d, n_pucch=%d, pmi_idx=%d\n",
rnti, prb_idx[0], prb_idx[1], cfg.cqi_pucch, cfg.cqi_idx);
return true;
}
return false;
}
@ -297,6 +320,8 @@ void sched_ue::ul_recv_len(uint32_t lcid, uint32_t len)
}
}
}
Debug("SCHED: recv_len=%d, lcid=%d, bsr={%d,%d,%d,%d}\n", len, lcid,
lch[0].bsr, lch[1].bsr, lch[2].bsr, lch[3].bsr);
}
void sched_ue::set_ul_crc(uint32_t tti, bool crc_res)
@ -370,7 +395,7 @@ int sched_ue::generate_format1(dl_harq_proc *h,
uint32_t nof_ctrl_symbols = cfi+(cell.nof_prb<10?1:0);
uint32_t nof_re = srslte_ra_dl_grant_nof_re(&grant, cell, sf_idx, nof_ctrl_symbols);
if (fixed_mcs_dl < 0) {
tbs = alloc_tbs(dl_cqi, nof_prb, nof_re, req_bytes, max_mcs_dl, &mcs);
tbs = alloc_tbs_dl(nof_prb, nof_re, req_bytes, &mcs);
} else {
tbs = srslte_ra_tbs_from_idx(srslte_ra_tbs_idx_from_mcs(fixed_mcs_dl), nof_prb);
mcs = fixed_mcs_dl;
@ -441,7 +466,7 @@ int sched_ue::generate_format0(ul_harq_proc *h,
uint32_t N_srs = 0;
uint32_t nof_re = (2*(SRSLTE_CP_NSYMB(cell.cp)-1) - N_srs)*allocation.L*SRSLTE_NRE;
if (fixed_mcs_ul < 0) {
tbs = alloc_tbs(ul_cqi, allocation.L, nof_re, req_bytes, max_mcs_ul, &mcs);
tbs = alloc_tbs_ul(allocation.L, nof_re, req_bytes, &mcs);
} else {
tbs = srslte_ra_tbs_from_idx(srslte_ra_tbs_idx_from_mcs(fixed_mcs_ul), allocation.L);
mcs = fixed_mcs_ul;
@ -554,6 +579,10 @@ uint32_t sched_ue::get_pending_ul_new_data(uint32_t tti)
} else {
pending_data = 0;
}
if (pending_data) {
Debug("SCHED: pending_data=%d, pending_ul_data=%d, bsr={%d,%d,%d,%d}\n", pending_data,pending_ul_data,
lch[0].bsr, lch[1].bsr, lch[2].bsr, lch[3].bsr);
}
return pending_data;
}
@ -581,7 +610,7 @@ uint32_t sched_ue::get_required_prb_dl(uint32_t req_bytes, uint32_t nof_ctrl_sym
for (n=1;n<cell.nof_prb && nbytes < req_bytes;n++) {
nof_re = srslte_ra_dl_approx_nof_re(cell, n, nof_ctrl_symbols);
if (fixed_mcs_dl < 0) {
tbs = alloc_tbs(dl_cqi, n, nof_re, 0, max_mcs_dl, &mcs);
tbs = alloc_tbs_dl(n, nof_re, 0, &mcs);
} else {
tbs = srslte_ra_tbs_from_idx(srslte_ra_tbs_idx_from_mcs(fixed_mcs_dl), n);
}
@ -610,7 +639,7 @@ uint32_t sched_ue::get_required_prb_ul(uint32_t req_bytes)
uint32_t nof_re = (2*(SRSLTE_CP_NSYMB(cell.cp)-1) - N_srs)*n*SRSLTE_NRE;
int tbs = 0;
if (fixed_mcs_ul < 0) {
tbs = alloc_tbs(ul_cqi, n, nof_re, 0, max_mcs_ul, &mcs);
tbs = alloc_tbs_ul(n, nof_re, 0, &mcs);
} else {
tbs = srslte_ra_tbs_from_idx(srslte_ra_tbs_idx_from_mcs(fixed_mcs_ul), n);
}
@ -731,36 +760,60 @@ uint32_t sched_ue::format1_count_prb(uint32_t bitmask, uint32_t cell_nof_prb) {
return nof_prb;
}
int sched_ue::cqi_to_tbs(uint32_t cqi, uint32_t nof_prb, uint32_t nof_re, uint32_t max_mcs, uint32_t *mcs) {
int sched_ue::cqi_to_tbs(uint32_t cqi, uint32_t nof_prb, uint32_t nof_re, uint32_t max_mcs, uint32_t max_Qm, uint32_t *mcs) {
float max_coderate = srslte_cqi_to_coderate(cqi);
int sel_mcs = max_mcs+1;
float coderate = 99;
float coderate = 99;
float eff_coderate = 99;
uint32_t Qm = 1;
int tbs = 0;
do {
sel_mcs--;
uint32_t tbs_idx = srslte_ra_tbs_idx_from_mcs(sel_mcs);
tbs = srslte_ra_tbs_from_idx(tbs_idx, nof_prb);
coderate = srslte_pdsch_coderate(tbs, nof_re);
} while(sel_mcs > 0 && coderate >= max_coderate);
coderate = srslte_coderate(tbs, nof_re);
Qm = SRSLTE_MIN(max_Qm, srslte_mod_bits_x_symbol(srslte_ra_mod_from_mcs(sel_mcs)));
eff_coderate = coderate/Qm;
} while((sel_mcs > 0 && coderate > max_coderate) || eff_coderate > 0.930);
if (mcs) {
*mcs = (uint32_t) sel_mcs;
}
return tbs;
}
/* In this scheduler we tend to use all the available bandwidth and select the MCS
int sched_ue::alloc_tbs_dl(uint32_t nof_prb,
uint32_t nof_re,
uint32_t req_bytes,
int *mcs)
{
return alloc_tbs(nof_prb, nof_re, req_bytes, false, mcs);
}
int sched_ue::alloc_tbs_ul(uint32_t nof_prb,
uint32_t nof_re,
uint32_t req_bytes,
int *mcs)
{
return alloc_tbs(nof_prb, nof_re, req_bytes, true, mcs);
}
/* In this scheduler we tend to use all the available bandwidth and select the MCS
* that approximates the minimum between the capacity and the requested rate
*/
int sched_ue::alloc_tbs(uint32_t cqi,
uint32_t nof_prb,
uint32_t nof_re,
uint32_t req_bytes,
uint32_t max_mcs,
int *mcs)
int sched_ue::alloc_tbs(uint32_t nof_prb,
uint32_t nof_re,
uint32_t req_bytes,
bool is_ul,
int *mcs)
{
uint32_t sel_mcs = 0;
int tbs = cqi_to_tbs(cqi, nof_prb, nof_re, max_mcs, &sel_mcs)/8;
uint32_t sel_mcs = 0;
uint32_t cqi = is_ul?ul_cqi:dl_cqi;
uint32_t max_mcs = is_ul?max_mcs_ul:max_mcs_dl;
uint32_t max_Qm = is_ul?4:6; // Allow 16-QAM in PUSCH Only
int tbs = cqi_to_tbs(cqi, nof_prb, nof_re, max_mcs, max_Qm, &sel_mcs)/8;
/* If less bytes are requested, lower the MCS */
if (tbs > (int) req_bytes && req_bytes > 0) {

137
srsenb/src/mac/ue.cc
View File

@ -58,8 +58,14 @@ void ue::config(uint16_t rnti_, uint32_t nof_prb, sched_interface *sched_, rrc_i
for(int i=0;i<NOF_HARQ_PROCESSES;i++) {
pending_buffers[i] = NULL;
}
// Set LCID group for SRB0 and SRB1
set_lcg(0, 0);
set_lcg(1, 0);
}
void ue::reset()
{
bzero(&metrics, sizeof(mac_metrics_t));
@ -86,7 +92,16 @@ void ue::rl_failure_reset()
{
nof_failures = 0;
}
void ue::set_lcg(uint32_t lcid, uint32_t lcg)
{
// find and remove if already exists
for (int i=0;i<4;i++) {
lc_groups[lcg].erase(std::remove(lc_groups[lcg].begin(), lc_groups[lcg].end(), lcid), lc_groups[lcg].end());
}
lc_groups[lcg].push_back(lcid);
}
srslte_softbuffer_rx_t* ue::get_rx_softbuffer(uint32_t tti)
{
return &softbuffer_rx[tti%NOF_HARQ_PROCESSES];
@ -136,63 +151,83 @@ void ue::process_pdu(uint8_t* pdu, uint32_t nof_bytes, uint32_t tstamp)
if (pcap) {
pcap->write_ul_crnti(pdu, nof_bytes, rnti, true, last_tti);
}
uint32_t lcid_most_data = 0;
int most_data = -99;
while(mac_msg_ul.next()) {
assert(mac_msg_ul.get());
if (mac_msg_ul.get()->is_sdu())
{
if (mac_msg_ul.get()->is_sdu()) {
// Route logical channel
log_h->debug_hex(mac_msg_ul.get()->get_sdu_ptr(), mac_msg_ul.get()->get_payload_size(),
"PDU: rnti=0x%x, lcid=%d, %d bytes\n",
rnti, mac_msg_ul.get()->get_sdu_lcid(), mac_msg_ul.get()->get_payload_size());
log_h->debug_hex(mac_msg_ul.get()->get_sdu_ptr(), mac_msg_ul.get()->get_payload_size(),
"PDU: rnti=0x%x, lcid=%d, %d bytes\n",
rnti, mac_msg_ul.get()->get_sdu_lcid(), mac_msg_ul.get()->get_payload_size());
/* In some cases, an uplink transmission with only CQI has all zeros and gets routed to RRC
* Compute the checksum if lcid=0 and avoid routing in that case
*/
bool route_pdu = true;
bool route_pdu = true;
if (mac_msg_ul.get()->get_sdu_lcid() == 0) {
uint8_t *x = mac_msg_ul.get()->get_sdu_ptr();
uint32_t sum = 0;
for (uint32_t i=0;i<mac_msg_ul.get()->get_payload_size();i++) {
uint32_t sum = 0;
for (uint32_t i = 0; i < mac_msg_ul.get()->get_payload_size(); i++) {
sum += x[i];
}
if (sum == 0) {
route_pdu = false;
route_pdu = false;
Warning("Received all zero PDU\n");
}
}
if (route_pdu) {
rlc->write_pdu(rnti,
mac_msg_ul.get()->get_sdu_lcid(),
mac_msg_ul.get()->get_sdu_ptr(),
mac_msg_ul.get()->get_payload_size());
rlc->write_pdu(rnti,
mac_msg_ul.get()->get_sdu_lcid(),
mac_msg_ul.get()->get_sdu_ptr(),
mac_msg_ul.get()->get_payload_size());
}
// Indicate scheduler to update BSR counters
sched->ul_recv_len(rnti, mac_msg_ul.get()->get_sdu_lcid(), mac_msg_ul.get()->get_payload_size());
if ((int) mac_msg_ul.get()->get_payload_size() > most_data) {
most_data = (int) mac_msg_ul.get()->get_payload_size();
lcid_most_data = mac_msg_ul.get()->get_sdu_lcid();
}
// Save contention resolution if lcid == 0
if (mac_msg_ul.get()->get_sdu_lcid() == 0 && route_pdu) {
uint32_t nbytes = srslte::sch_subh::MAC_CE_CONTRES_LEN;
uint32_t nbytes = srslte::sch_subh::MAC_CE_CONTRES_LEN;
if (mac_msg_ul.get()->get_payload_size() >= nbytes) {
uint8_t *ue_cri_ptr = (uint8_t*) &conres_id;
uint8_t *pkt_ptr = mac_msg_ul.get()->get_sdu_ptr(); // Warning here: we want to include the
for (uint32_t i=0;i<nbytes;i++) {
ue_cri_ptr[nbytes-i-1] = pkt_ptr[i];
uint8_t *ue_cri_ptr = (uint8_t *) &conres_id;
uint8_t *pkt_ptr = mac_msg_ul.get()->get_sdu_ptr(); // Warning here: we want to include the
for (uint32_t i = 0; i < nbytes; i++) {
ue_cri_ptr[nbytes - i - 1] = pkt_ptr[i];
}
} else {
Error("Received CCCH UL message of invalid size=%d bytes\n", mac_msg_ul.get()->get_payload_size());
}
}
} else {
// Process MAC Control Element
if (!process_ce(mac_msg_ul.get())) {
Warning("Received Subheader with invalid or unkonwn LCID\n");
}
}
}
}
mac_msg_ul.reset();
/* Process CE after all SDUs because we need to update BSR after */
bool bsr_received = false;
while(mac_msg_ul.next()) {
assert(mac_msg_ul.get());
if (!mac_msg_ul.get()->is_sdu()) {
// Process MAC Control Element
bsr_received |= process_ce(mac_msg_ul.get());
}
}
// If BSR is not received means that new data has arrived and there is no space for BSR transmission
if (!bsr_received && lcid_most_data > 2) {
// Add BSR to the LCID for which most data was received
sched->ul_bsr(rnti, lcid_most_data, 256, false); // false adds BSR instead of setting
Debug("BSR not received. Giving extra grant\n");
}
Debug("MAC PDU processed\n");
@ -220,9 +255,10 @@ void ue::push_pdu(uint32_t tti, uint32_t len)
bool ue::process_ce(srslte::sch_subh *subh) {
uint32_t buff_size[4] = {0, 0, 0, 0};
uint32_t idx = 0;
float phr = 0;
uint16_t old_rnti = 0;
float phr = 0;
int idx = 0;
uint16_t old_rnti = 0;
bool is_bsr = false;
switch(subh->ce_type()) {
case srslte::sch_subh::PHR_REPORT:
phr = subh->get_phr();
@ -241,23 +277,26 @@ bool ue::process_ce(srslte::sch_subh *subh) {
}
break;
case srslte::sch_subh::TRUNC_BSR:
case srslte::sch_subh::SHORT_BSR:
case srslte::sch_subh::LONG_BSR:
case srslte::sch_subh::SHORT_BSR:
idx = subh->get_bsr(buff_size);
if (idx > 0) {
// Indicate BSR to scheduler
sched->ul_bsr(rnti, idx, buff_size[idx]);
Info("CE: Received BSR rnti=0x%x, lcid=%d, value=%d\n", rnti, idx, buff_size[idx]);
} else if (idx == 0) {
// TODO: map lcid group to lcid
for (int i=0;i<4;i++) {
sched->ul_bsr(rnti, i, buff_size[i]);
}
Info("CE: Received Long BSR rnti=0x%x, value=%d,%d,%d,%d\n", rnti,
buff_size[0], buff_size[1], buff_size[2], buff_size[3]);
} else {
printf("Error!\n");
for (uint32_t i=0;i<lc_groups[idx].size();i++) {
// Indicate BSR to scheduler
sched->ul_bsr(rnti, lc_groups[idx][i], buff_size[idx]);
}
Info("CE: Received %s BSR rnti=0x%x, lcg=%d, value=%d\n",
subh->ce_type()==srslte::sch_subh::SHORT_BSR?"Short":"Trunc", rnti, idx, buff_size[idx]);
is_bsr = true;
break;
case srslte::sch_subh::LONG_BSR:
subh->get_bsr(buff_size);
for (int idx=0;idx<4;idx++) {
for (uint32_t i=0;i<lc_groups[idx].size();i++) {
sched->ul_bsr(rnti, lc_groups[idx][i], buff_size[idx]);
}
}
is_bsr = true;
Info("CE: Received Long BSR rnti=0x%x, value=%d,%d,%d,%d\n", rnti,
buff_size[0], buff_size[1], buff_size[2], buff_size[3]);
break;
case srslte::sch_subh::PADDING:
Debug("CE: Received padding for rnti=0x%x\n", rnti);
@ -266,7 +305,7 @@ bool ue::process_ce(srslte::sch_subh *subh) {
Error("CE: Invalid lcid=0x%x\n", subh->ce_type());
break;
}
return true;
return is_bsr;
}

6
srsenb/src/main.cc
View File

@ -130,7 +130,7 @@ void parse_args(all_args_t *args, int argc, char* argv[]) {
bpo::value<int>(&args->expert.mac.sched.pusch_mcs)->default_value(-1),
"Optional fixed PUSCH MCS (ignores reported CQIs if specified)")
("scheduler.pusch_max_mcs",
bpo::value<int>(&args->expert.mac.sched.pusch_max_mcs)->default_value(16),
bpo::value<int>(&args->expert.mac.sched.pusch_max_mcs)->default_value(-1),
"Optional PUSCH MCS limit")
("scheduler.nof_ctrl_symbols",
bpo::value<int>(&args->expert.mac.sched.nof_ctrl_symbols)->default_value(3),
@ -152,7 +152,7 @@ void parse_args(all_args_t *args, int argc, char* argv[]) {
"Maximum number of turbo decoder iterations")
("expert.tx_amplitude",
bpo::value<float>(&args->expert.phy.tx_amplitude)->default_value(0.8),
bpo::value<float>(&args->expert.phy.tx_amplitude)->default_value(0.6),
"Transmit amplitude factor")
("expert.nof_phy_threads",
@ -176,7 +176,7 @@ void parse_args(all_args_t *args, int argc, char* argv[]) {
"Chooses the coefficients for the 3-tap channel estimator centered filter.")
("expert.rrc_inactivity_timer",
bpo::value<uint32_t>(&args->expert.rrc_inactivity_timer)->default_value(30000),
bpo::value<uint32_t>(&args->expert.rrc_inactivity_timer)->default_value(10000),
"Inactivity timer in ms")

17
srsenb/src/phy/phch_worker.cc
View File

@ -49,6 +49,8 @@ using namespace std;
#ifdef ENABLE_GUI
#include "srsgui/srsgui.h"
#include <semaphore.h>
#include <srslte/phy/phch/ra.h>
void init_plots(srsenb::phch_worker *worker);
pthread_t plot_thread;
sem_t plot_sem;
@ -114,7 +116,7 @@ void phch_worker::init(phch_common* phy_, srslte::log *log_h_)
return;
}
srslte_pucch_set_threshold(&enb_ul.pucch, 0.8, 0.5);
srslte_pucch_set_threshold(&enb_ul.pucch, 0.8);
srslte_sch_set_max_noi(&enb_ul.pusch.ul_sch, phy->params.pusch_max_its);
srslte_enb_dl_set_amp(&enb_dl, phy->params.tx_amplitude);
@ -183,8 +185,8 @@ void phch_worker::set_config_dedicated(uint16_t rnti,
srslte_enb_ul_cfg_ue(&enb_ul, rnti, uci_cfg, pucch_sched, srs_cfg);
ue_db[rnti].I_sr = I_sr;
ue_db[rnti].I_sr_en = true;
ue_db[rnti].I_sr_en = true;
if (pucch_cqi) {
ue_db[rnti].pmi_idx = pmi_idx;
ue_db[rnti].cqi_en = true;
@ -360,7 +362,6 @@ int phch_worker::decode_pusch(srslte_enb_ul_pusch_t *grants, uint32_t nof_pusch,
}
if (cqi_enabled) {
uci_data.uci_cqi_len = srslte_cqi_size(&cqi_value);
Info("cqi enabled len=%d\n", uci_data.uci_cqi_len);
}
// mark this tti as having an ul grant to avoid pucch
@ -369,7 +370,11 @@ int phch_worker::decode_pusch(srslte_enb_ul_pusch_t *grants, uint32_t nof_pusch,
srslte_ra_ul_grant_t phy_grant;
int res = -1;
if (!srslte_ra_ul_dci_to_grant(&grants[i].grant, enb_ul.cell.nof_prb, n_rb_ho, &phy_grant, tti%8)) {
res = srslte_enb_ul_get_pusch(&enb_ul, &phy_grant, grants[i].softbuffer,
if (phy_grant.mcs.mod == SRSLTE_MOD_64QAM) {
phy_grant.mcs.mod = SRSLTE_MOD_16QAM;
}
phy_grant.Qm = SRSLTE_MIN(phy_grant.Qm, 4);
res = srslte_enb_ul_get_pusch(&enb_ul, &phy_grant, grants[i].softbuffer,
rnti, grants[i].rv_idx,
grants[i].current_tx_nb,
grants[i].data,
@ -420,7 +425,7 @@ int phch_worker::decode_pusch(srslte_enb_ul_pusch_t *grants, uint32_t nof_pusch,
}
*/
log_h->info_hex(grants[i].data, phy_grant.mcs.tbs/8,
"PUSCH: rnti=0x%x, prb=(%d,%d), tbs=%d, mcs=%d, rv=%d, snr=%.1f dB, n_iter=%d, crc=%s%s%s%s\n",
"PUSCH: rnti=0x%x, prb=(%d,%d), tbs=%d, mcs=%d, rv=%d, snr=%.1f dB, n_iter=%d, crc=%s%s%s%s\n",
rnti, phy_grant.n_prb[0], phy_grant.n_prb[0]+phy_grant.L_prb,
phy_grant.mcs.tbs/8, phy_grant.mcs.idx, grants[i].grant.rv_idx,
snr_db,

16
srsenb/src/upper/pdcp.cc
View File

@ -25,6 +25,7 @@
*/
#include "upper/pdcp.h"
#include "upper/common_enb.h"
namespace srsenb {
@ -50,7 +51,7 @@ void pdcp::add_user(uint16_t rnti)
{
if (users.count(rnti) == 0) {
srslte::pdcp *obj = new srslte::pdcp;
obj->init(&users[rnti].rlc_itf, &users[rnti].rrc_itf, &users[rnti].gtpu_itf, log_h, SECURITY_DIRECTION_DOWNLINK);
obj->init(&users[rnti].rlc_itf, &users[rnti].rrc_itf, &users[rnti].gtpu_itf, log_h, RB_ID_SRB0, SECURITY_DIRECTION_DOWNLINK);
users[rnti].rlc_itf.rnti = rnti;
users[rnti].gtpu_itf.rnti = rnti;
users[rnti].rrc_itf.rnti = rnti;
@ -72,14 +73,13 @@ void pdcp::rem_user(uint16_t rnti)
}
}
void pdcp::add_bearer(uint16_t rnti, uint32_t lcid, LIBLTE_RRC_PDCP_CONFIG_STRUCT* cnfg)
void pdcp::add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_pdcp_config_t cfg)
{
if (users.count(rnti)) {
users[rnti].pdcp->add_bearer(lcid, cnfg);
users[rnti].pdcp->add_bearer(lcid, cfg);
}
}
void pdcp::reset(uint16_t rnti)
{
if (users.count(rnti)) {
@ -143,6 +143,10 @@ void pdcp::user_interface_rrc::write_pdu_pcch(srslte::byte_buffer_t* pdu)
{
fprintf(stderr, "Error: Received PCCH from ue=%d\n", rnti);
}
std::string pdcp::user_interface_rrc::get_rb_name(uint32_t lcid)
{
return std::string(rb_id_text[lcid]);
}
}

14
srsenb/src/upper/rlc.cc
View File

@ -25,6 +25,7 @@
*/
#include "upper/rlc.h"
#include "upper/common_enb.h"
namespace srsenb {
@ -53,7 +54,7 @@ void rlc::add_user(uint16_t rnti)
{
if (users.count(rnti) == 0) {
srslte::rlc *obj = new srslte::rlc;
obj->init(&users[rnti], &users[rnti], &users[rnti], log_h, mac_timers);
obj->init(&users[rnti], &users[rnti], &users[rnti], log_h, mac_timers, RB_ID_SRB0);
users[rnti].rnti = rnti;
users[rnti].pdcp = pdcp;
users[rnti].rrc = rrc;
@ -82,11 +83,11 @@ void rlc::reset(uint16_t rnti)
void rlc::clear_buffer(uint16_t rnti)
{
if (users.count(rnti)) {
log_h->info("Clearing buffer rnti=0x%x\n", rnti);
users[rnti].rlc->reset();
users[rnti].rlc->empty_queue();
for (int i=0;i<SRSLTE_N_RADIO_BEARERS;i++) {
mac->rlc_buffer_state(rnti, i, 0, 0);
}
log_h->info("Cleared buffer rnti=0x%x\n", rnti);
}
}
@ -97,7 +98,7 @@ void rlc::add_bearer(uint16_t rnti, uint32_t lcid)
}
}
void rlc::add_bearer(uint16_t rnti, uint32_t lcid, LIBLTE_RRC_RLC_CONFIG_STRUCT* cnfg)
void rlc::add_bearer(uint16_t rnti, uint32_t lcid, srslte::srslte_rlc_config_t cnfg)
{
if (users.count(rnti)) {
users[rnti].rlc->add_bearer(lcid, cnfg);
@ -184,4 +185,9 @@ void rlc::user_interface::write_pdu_pcch(srslte::byte_buffer_t* sdu)
fprintf(stderr, "Error: Received PCCH from ue=%d\n", rnti);
}
std::string rlc::user_interface::get_rb_name(uint32_t lcid)
{
return std::string(rb_id_text[lcid]);
}
}

58
srsenb/src/upper/rrc.cc
View File

@ -24,13 +24,13 @@
*
*/
#include <srslte/interfaces/sched_interface.h>
#include <srslte/asn1/liblte_rrc.h>
#include "srslte/asn1/liblte_mme.h"
#include "upper/rrc.h"
using srslte::rb_id_text;
using srslte::byte_buffer_t;
using srslte::bit_buffer_t;
using srslte::rb_id_t;
namespace srsenb {
@ -314,12 +314,11 @@ void rrc::release_complete(uint16_t rnti)
if (!users[rnti].is_idle()) {
rlc->clear_buffer(rnti);
users[rnti].send_connection_release();
// There is no RRCReleaseComplete message from UE thus sleep to enable all retx in PHY +50%
usleep(1.5*8*1e3*cfg.mac_cnfg.ulsch_cnfg.max_harq_tx);
// There is no RRCReleaseComplete message from UE thus wait ~100 subframes for tx
usleep(100000);
}
rem_user(rnti);
} else {
rrc_log->error("Received ReleaseComplete for unknown rnti=0x%x\n", rnti);
}
}
@ -439,7 +438,7 @@ void rrc::add_paging_id(uint32_t ueid, LIBLTE_S1AP_UEPAGINGID_STRUCT UEPagingID)
// Described in Section 7 of 36.304
bool rrc::is_paging_opportunity(uint32_t tti, uint32_t *payload_len)
{
int sf_pattern[4][3] = {{9, 4, 0}, {-1, 9, 4}, {-1, -1, 5}, {-1, -1, 9}};
int sf_pattern[4][4] = {{9, 4, -1, 0}, {-1, 9, -1, 4}, {-1, -1, -1, 5}, {-1, -1, -1, 9}};
if (pending_paging.empty()) {
return false;
@ -468,7 +467,7 @@ bool rrc::is_paging_opportunity(uint32_t tti, uint32_t *payload_len)
if ((sfn % T) == (T/N) * (ueid % N)) {
int sf_idx = sf_pattern[i_s%4][(Ns-1)%3];
int sf_idx = sf_pattern[i_s%4][(Ns-1)%4];
if (sf_idx < 0) {
rrc_log->error("SF pattern is N/A for Ns=%d, i_s=%d, imsi_decimal=%d\n", Ns, i_s, ueid);
} else if ((uint32_t) sf_idx == (tti%10)) {
@ -607,11 +606,11 @@ void rrc::run_thread()
}
switch(p.lcid)
{
case srslte::RB_ID_SRB0:
case RB_ID_SRB0:
parse_ul_ccch(p.rnti, p.pdu);
break;
case srslte::RB_ID_SRB1:
case srslte::RB_ID_SRB2:
case RB_ID_SRB1:
case RB_ID_SRB2:
parse_ul_dcch(p.rnti, p.lcid, p.pdu);
break;
case LCID_REM_USER:
@ -919,7 +918,7 @@ void rrc::ue::set_security_key(uint8_t* key, uint32_t length)
k_up_enc,
k_up_int);
parent->configure_security(rnti, srslte::RB_ID_SRB1,
parent->configure_security(rnti, RB_ID_SRB1,
k_rrc_enc, k_rrc_int,
k_up_enc, k_up_int,
cipher_algo, integ_algo);
@ -1156,9 +1155,14 @@ void rrc::ue::send_connection_setup(bool is_setup)
// Configure MAC
parent->mac->ue_cfg(rnti, &sched_cfg);
// Configure SRB1 in RLC and PDCP
// Configure SRB1 in RLC
parent->rlc->add_bearer(rnti, 1);
parent->pdcp->add_bearer(rnti, 1);
// Configure SRB1 in PDCP
srslte::srslte_pdcp_config_t pdcp_cnfg;
pdcp_cnfg.is_control = true;
pdcp_cnfg.direction = SECURITY_DIRECTION_DOWNLINK;
parent->pdcp->add_bearer(rnti, 1, pdcp_cnfg);
// Configure PHY layer
parent->phy->set_config_dedicated(rnti, phy_cfg);
@ -1170,7 +1174,6 @@ void rrc::ue::send_connection_setup(bool is_setup)
rr_cfg->sps_cnfg_present = false;
send_dl_ccch(&dl_ccch_msg);
}
@ -1309,17 +1312,34 @@ void rrc::ue::send_connection_reconf(srslte::byte_buffer_t *pdu)
// Add SRB2 and DRB1 to the scheduler
srsenb::sched_interface::ue_bearer_cfg_t bearer_cfg;
bearer_cfg.direction = srsenb::sched_interface::ue_bearer_cfg_t::BOTH;
bearer_cfg.group = 0;
parent->mac->bearer_ue_cfg(rnti, 2, &bearer_cfg);
bearer_cfg.group = conn_reconf->rr_cnfg_ded.drb_to_add_mod_list[0].lc_cnfg.ul_specific_params.log_chan_group;
parent->mac->bearer_ue_cfg(rnti, 3, &bearer_cfg);
// Configure SRB2 in RLC and PDCP
parent->rlc->add_bearer(rnti, 2);
parent->pdcp->add_bearer(rnti, 2);
// Configure SRB2 in PDCP
srslte::srslte_pdcp_config_t pdcp_cnfg;
pdcp_cnfg.direction = SECURITY_DIRECTION_DOWNLINK;
pdcp_cnfg.is_control = true;
pdcp_cnfg.is_data = false;
parent->pdcp->add_bearer(rnti, 2, pdcp_cnfg);
// Configure DRB1 in RLC
parent->rlc->add_bearer(rnti, 3, &conn_reconf->rr_cnfg_ded.drb_to_add_mod_list[0].rlc_cnfg);
// Configure DRB1 in PDCP
parent->pdcp->add_bearer(rnti, 3, &conn_reconf->rr_cnfg_ded.drb_to_add_mod_list[0].pdcp_cnfg);
pdcp_cnfg.is_control = false;
pdcp_cnfg.is_data = true;
if (conn_reconf->rr_cnfg_ded.drb_to_add_mod_list[0].pdcp_cnfg.rlc_um_pdcp_sn_size_present) {
if(LIBLTE_RRC_PDCP_SN_SIZE_7_BITS == conn_reconf->rr_cnfg_ded.drb_to_add_mod_list[0].pdcp_cnfg.rlc_um_pdcp_sn_size) {
pdcp_cnfg.sn_len = 7;
}
}
parent->pdcp->add_bearer(rnti, 3, pdcp_cnfg);
// DRB1 has already been configured in GTPU through bearer setup
// Add NAS Attach accept
@ -1432,7 +1452,7 @@ void rrc::ue::send_dl_ccch(LIBLTE_RRC_DL_CCCH_MSG_STRUCT *dl_ccch_msg)
rnti,
liblte_rrc_dl_ccch_msg_type_text[dl_ccch_msg->msg_type]);
parent->pdcp->write_sdu(rnti, srslte::RB_ID_SRB0, pdu);
parent->pdcp->write_sdu(rnti, RB_ID_SRB0, pdu);
} else {
parent->rrc_log->error("Allocating pdu\n");
@ -1453,7 +1473,7 @@ void rrc::ue::send_dl_dcch(LIBLTE_RRC_DL_DCCH_MSG_STRUCT *dl_dcch_msg, byte_buff
rnti,
liblte_rrc_dl_dcch_msg_type_text[dl_dcch_msg->msg_type]);
parent->pdcp->write_sdu(rnti, srslte::RB_ID_SRB1, pdu);
parent->pdcp->write_sdu(rnti, RB_ID_SRB1, pdu);
} else {
parent->rrc_log->error("Allocating pdu\n");

6
srsenb/src/upper/s1ap.cc
View File

@ -173,7 +173,7 @@ void s1ap::build_tai_cgi()
void s1ap::initial_ue(uint16_t rnti, srslte::byte_buffer_t *pdu)
{
ue_ctxt_map[rnti].eNB_UE_S1AP_ID = next_eNB_UE_S1AP_ID++;
ue_ctxt_map[rnti].stream_id = next_ue_stream_id++;
ue_ctxt_map[rnti].stream_id = 1;
ue_ctxt_map[rnti].release_requested = false;
enbid_to_rnti_map[ue_ctxt_map[rnti].eNB_UE_S1AP_ID] = rnti;
send_initialuemessage(rnti, pdu, false);
@ -182,7 +182,7 @@ void s1ap::initial_ue(uint16_t rnti, srslte::byte_buffer_t *pdu)
void s1ap::initial_ue(uint16_t rnti, srslte::byte_buffer_t *pdu, uint32_t m_tmsi, uint8_t mmec)
{
ue_ctxt_map[rnti].eNB_UE_S1AP_ID = next_eNB_UE_S1AP_ID++;
ue_ctxt_map[rnti].stream_id = next_ue_stream_id++;
ue_ctxt_map[rnti].stream_id = 1;
ue_ctxt_map[rnti].release_requested = false;
enbid_to_rnti_map[ue_ctxt_map[rnti].eNB_UE_S1AP_ID] = rnti;
send_initialuemessage(rnti, pdu, true, m_tmsi, mmec);
@ -594,7 +594,7 @@ bool s1ap::handle_uectxtreleasecommand(LIBLTE_S1AP_MESSAGE_UECONTEXTRELEASECOMMA
s1ap_log->warning("Not handling S1AP message extension\n");
}
uint16_t rnti;
uint16_t rnti = 0;
if(msg->UE_S1AP_IDs.choice_type == LIBLTE_S1AP_UE_S1AP_IDS_CHOICE_UE_S1AP_ID_PAIR) {
if(msg->UE_S1AP_IDs.choice.uE_S1AP_ID_pair.ext) {

3
srsenb/test/upper/ip_test.cc
View File

@ -155,6 +155,7 @@ public:
void set_activity_user(uint16_t rnti) {}
bool is_paging_opportunity(uint32_t tti, uint32_t *payload_len) {return false;}
void read_pdu_pcch(uint8_t* payload, uint32_t buffer_size) {}
std::string get_rb_name(uint32_t lcid) { return std::string("lcid"); }
void write_pdu(uint32_t lcid, srslte::byte_buffer_t *sdu)
{
@ -566,7 +567,7 @@ int main(int argc, char *argv[])
my_phy.init(&phy_args, &phy_cfg, &my_radio, &my_mac, &log_phy);
my_mac.init(&mac_args, &mac_cfg.cell, &my_phy, &my_tester, &my_tester, &log_mac);
my_rlc.init(&my_tester, &my_tester, &my_tester, &log_rlc, &my_mac);
my_rlc.init(&my_tester, &my_tester, &my_tester, &log_rlc, &my_mac, 0 /* SRB0 */);
my_tester.init(&my_rlc, &my_mac, &my_phy, &log_tester, prog_args.ip_address);
if (prog_args.enable_gui) {

14
srsue/hdr/mac/demux.h
View File

@ -41,8 +41,8 @@ namespace srsue {
class demux : public srslte::pdu_queue::process_callback
{
public:
demux();
void init(phy_interface_mac* phy_h_, rlc_interface_mac *rlc, srslte::log* log_h_, srslte::timers* timers_db_);
demux(uint8_t nof_harq_proc_);
void init(phy_interface_mac_common* phy_h_, rlc_interface_mac *rlc, srslte::log* log_h_, srslte::timers* timers_db_);
bool process_pdus();
uint8_t* request_buffer(uint32_t pid, uint32_t len);
@ -57,7 +57,6 @@ public:
void process_pdu(uint8_t *pdu, uint32_t nof_bytes, uint32_t tstamp);
private:
const static int NOF_HARQ_PID = 8;
const static int MAX_PDU_LEN = 150*1024/8; // ~ 150 Mbps
const static int NOF_BUFFER_PDUS = 64; // Number of PDU buffers per HARQ pid
uint8_t bcch_buffer[1024]; // BCCH PID has a dedicated buffer
@ -73,10 +72,11 @@ private:
bool is_uecrid_successful;
phy_interface_mac *phy_h;
srslte::log *log_h;
srslte::timers *timers_db;
rlc_interface_mac *rlc;
phy_interface_mac_common *phy_h;
srslte::log *log_h;
srslte::timers *timers_db;
rlc_interface_mac *rlc;
uint8_t nof_harq_proc;
// Buffer of PDUs
srslte::pdu_queue pdus;

321
srsue/hdr/mac/dl_harq.h
View File

@ -27,9 +27,15 @@
#ifndef DL_HARQ_H
#define DL_HARQ_H
#define Error(fmt, ...) log_h->error_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Warning(fmt, ...) log_h->warning_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Info(fmt, ...) log_h->info_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Debug(fmt, ...) log_h->debug_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#include "srslte/common/log.h"
#include "srslte/common/timers.h"
#include "mac/demux.h"
#include "mac/mac_common.h"
#include "mac/dl_sps.h"
#include "srslte/common/mac_pcap.h"
@ -39,79 +45,314 @@
namespace srsue {
template <std::size_t N, typename Tgrant, typename Taction, typename Tphygrant>
class dl_harq_entity
{
public:
const static uint32_t NOF_HARQ_PROC = 8;
const static uint32_t HARQ_BCCH_PID = NOF_HARQ_PROC;
const static uint32_t HARQ_BCCH_PID = N;
dl_harq_entity();
bool init(srslte::log *log_h_, mac_interface_rrc::mac_cfg_t *mac_cfg, srslte::timers *timers_, demux *demux_unit);
/***************** PHY->MAC interface for DL processes **************************/
void new_grant_dl(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_dl_t *action);
void tb_decoded(bool ack, srslte_rnti_type_t rnti_type, uint32_t harq_pid);
void reset();
void start_pcap(srslte::mac_pcap* pcap);
int get_current_tbs(uint32_t harq_pid);
dl_harq_entity() : proc(N+1)
{
pcap = NULL;
}
bool init(srslte::log *log_h_, srslte::timers *timers_, demux *demux_unit_)
{
timers_db = timers_;
demux_unit = demux_unit_;
si_window_start = 0;
log_h = log_h_;
for (uint32_t i=0;i<N+1;i++) {
if (!proc[i].init(i, this)) {
return false;
}
}
return true;
}
/***************** PHY->MAC interface for DL processes **************************/
void new_grant_dl(Tgrant grant, Taction *action)
{
if (grant.rnti_type != SRSLTE_RNTI_SPS) {
uint32_t harq_pid;
// Set BCCH PID for SI RNTI
if (grant.rnti_type == SRSLTE_RNTI_SI) {
harq_pid = HARQ_BCCH_PID;
} else {
harq_pid = grant.pid%N;
}
if (grant.rnti_type == SRSLTE_RNTI_TEMP && last_temporal_crnti != grant.rnti) {
grant.ndi = true;
Info("Set NDI=1 for Temp-RNTI DL grant\n");
last_temporal_crnti = grant.rnti;
}
if (grant.rnti_type == SRSLTE_RNTI_USER && proc[harq_pid].is_sps()) {
grant.ndi = true;
Info("Set NDI=1 for C-RNTI DL grant\n");
}
proc[harq_pid].new_grant_dl(grant, action);
} else {
/* This is for SPS scheduling */
uint32_t harq_pid = get_harq_sps_pid(grant.tti)%N;
if (grant.ndi) {
grant.ndi = false;
proc[harq_pid].new_grant_dl(grant, action);
} else {
if (grant.is_sps_release) {
dl_sps_assig.clear();
if (timers_db->get(TIME_ALIGNMENT)->is_running()) {
//phy_h->send_sps_ack();
Warning("PHY Send SPS ACK not implemented\n");
}
} else {
Error("SPS not implemented\n");
//dl_sps_assig.reset(grant.tti, grant);
//grant.ndi = true;
//procs[harq_pid].save_grant();
}
}
}
}
void tb_decoded(bool ack, srslte_rnti_type_t rnti_type, uint32_t harq_pid)
{
if (rnti_type == SRSLTE_RNTI_SI) {
proc[N].tb_decoded(ack);
} else {
proc[harq_pid%N].tb_decoded(ack);
}
}
void reset()
{
for (uint32_t i=0;i<N+1;i++) {
proc[i].reset();
}
dl_sps_assig.clear();
}
void start_pcap(srslte::mac_pcap* pcap_) { pcap = pcap_; }
int get_current_tbs(uint32_t harq_pid) { return proc[harq_pid%N].get_current_tbs(); }
void set_si_window_start(int si_window_start_) { si_window_start = si_window_start_; }
float get_average_retx() { return average_retx; }
void set_si_window_start(int si_window_start);
float get_average_retx();
private:
class dl_harq_process {
public:
dl_harq_process();
bool init(uint32_t pid, dl_harq_entity *parent);
void reset();
bool is_sps();
void new_grant_dl(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_dl_t *action);
void tb_decoded(bool ack);
int get_current_tbs();
dl_harq_process()
{
is_initiated = false;
ack = false;
bzero(&cur_grant, sizeof(Tgrant));
}
bool init(uint32_t pid_, dl_harq_entity *parent)
{
if (srslte_softbuffer_rx_init(&softbuffer, 110)) {
Error("Error initiating soft buffer\n");
return false;
} else {
pid = pid_;
is_initiated = true;
harq_entity = parent;
log_h = harq_entity->log_h;
return true;
}
}
void reset()
{
ack = false;
payload_buffer_ptr = NULL;
bzero(&cur_grant, sizeof(Tgrant));
if (is_initiated) {
srslte_softbuffer_rx_reset(&softbuffer);
}
}
void new_grant_dl(Tgrant grant, Taction *action)
{
// Compute RV for BCCH when not specified in PDCCH format
if (pid == HARQ_BCCH_PID && grant.rv == -1) {
uint32_t k;
if ((grant.tti/10)%2 == 0 && grant.tti%10 == 5) { // This is SIB1, k is different
k = (grant.tti/20)%4;
grant.rv = ((uint32_t) ceilf((float)1.5*k))%4;
} else if (grant.rv == -1) {
k = (grant.tti-harq_entity->si_window_start)%4;
grant.rv = ((uint32_t) ceilf((float)1.5*k))%4;
}
}
calc_is_new_transmission(grant);
if (is_new_transmission) {
ack = false;
srslte_softbuffer_rx_reset_tbs(&softbuffer, cur_grant.n_bytes*8);
n_retx = 0;
}
// Save grant
grant.last_ndi = cur_grant.ndi;
grant.last_tti = cur_grant.tti;
memcpy(&cur_grant, &grant, sizeof(Tgrant));
// Fill action structure
bzero(action, sizeof(Taction));
action->default_ack = ack;
action->generate_ack = true;
action->decode_enabled = false;
// If data has not yet been successfully decoded
if (ack == false) {
// Instruct the PHY To combine the received data and attempt to decode it
payload_buffer_ptr = harq_entity->demux_unit->request_buffer(pid, cur_grant.n_bytes);
action->payload_ptr = payload_buffer_ptr;
if (!action->payload_ptr) {
action->decode_enabled = false;
Error("Can't get a buffer for TBS=%d\n", cur_grant.n_bytes);
return;
}
action->decode_enabled = true;
action->rv = cur_grant.rv;
action->rnti = cur_grant.rnti;
action->softbuffer = &softbuffer;
memcpy(&action->phy_grant, &cur_grant.phy_grant, sizeof(Tphygrant));
n_retx++;
} else {
Warning("DL PID %d: Received duplicate TB. Discarting and retransmitting ACK\n", pid);
}
if (pid == HARQ_BCCH_PID || harq_entity->timers_db->get(TIME_ALIGNMENT)->is_expired()) {
// Do not generate ACK
Debug("Not generating ACK\n");
action->generate_ack = false;
} else {
if (cur_grant.rnti_type == SRSLTE_RNTI_TEMP && ack == false) {
// Postpone ACK after contention resolution is resolved
action->generate_ack_callback = harq_entity->generate_ack_callback;
action->generate_ack_callback_arg = harq_entity->demux_unit;
Debug("ACK pending contention resolution\n");
} else {
Debug("Generating ACK\n");
}
}
}
void tb_decoded(bool ack_)
{
ack = ack_;
if (ack == true) {
if (pid == HARQ_BCCH_PID) {
if (harq_entity->pcap) {
harq_entity->pcap->write_dl_sirnti(payload_buffer_ptr, cur_grant.n_bytes, ack, cur_grant.tti);
}
Debug("Delivering PDU=%d bytes to Dissassemble and Demux unit (BCCH)\n", cur_grant.n_bytes);
harq_entity->demux_unit->push_pdu(pid, payload_buffer_ptr, cur_grant.n_bytes, cur_grant.tti);
} else {
if (harq_entity->pcap) {
harq_entity->pcap->write_dl_crnti(payload_buffer_ptr, cur_grant.n_bytes, cur_grant.rnti, ack, cur_grant.tti);
}
if (ack) {
if (cur_grant.rnti_type == SRSLTE_RNTI_TEMP) {
Debug("Delivering PDU=%d bytes to Dissassemble and Demux unit (Temporal C-RNTI)\n", cur_grant.n_bytes);
harq_entity->demux_unit->push_pdu_temp_crnti(payload_buffer_ptr, cur_grant.n_bytes);
} else {
Debug("Delivering PDU=%d bytes to Dissassemble and Demux unit\n", cur_grant.n_bytes);
harq_entity->demux_unit->push_pdu(pid, payload_buffer_ptr, cur_grant.n_bytes, cur_grant.tti);
// Compute average number of retransmissions per packet
harq_entity->average_retx = SRSLTE_VEC_CMA((float) n_retx, harq_entity->average_retx, harq_entity->nof_pkts++);
}
}
}
} else {
harq_entity->demux_unit->deallocate(payload_buffer_ptr);
}
Info("DL %d: %s tbs=%d, rv=%d, ack=%s, ndi=%d (%d), tti=%d (%d)\n",
pid, is_new_transmission?"newTX":"reTX ",
cur_grant.n_bytes, cur_grant.rv, ack?"OK":"KO",
cur_grant.ndi, cur_grant.last_ndi, cur_grant.tti, cur_grant.last_tti);
if (ack && pid == HARQ_BCCH_PID) {
reset();
}
}
bool is_sps() { return false; }
int get_current_tbs() { return cur_grant.n_bytes*8; }
private:
bool calc_is_new_transmission(mac_interface_phy::mac_grant_t grant);
bool calc_is_new_transmission(Tgrant grant)
{
bool is_new_tb = true;
if ((srslte_tti_interval(grant.tti, cur_grant.tti) <= 8 && (grant.n_bytes == cur_grant.n_bytes)) ||
pid == HARQ_BCCH_PID)
{
is_new_tb = false;
}
if ((grant.ndi != cur_grant.ndi && !is_new_tb) || // NDI toggled for same TB
is_new_tb || // is new TB
(pid == HARQ_BCCH_PID && grant.rv == 0)) // Broadcast PID and 1st TX (RV=0)
{
is_new_transmission = true;
Debug("Set HARQ for new transmission\n");
} else {
is_new_transmission = false;
Debug("Set HARQ for retransmission\n");
}
return is_new_transmission;
}
bool is_initiated;
dl_harq_entity *harq_entity;
srslte::log *log_h;
bool is_new_transmission;
bool is_new_transmission;
uint32_t pid;
uint8_t *payload_buffer_ptr;
bool ack;
uint32_t n_retx;
uint32_t n_retx;
mac_interface_phy::mac_grant_t cur_grant;
Tgrant cur_grant;
srslte_softbuffer_rx_t softbuffer;
};
static bool generate_ack_callback(void *arg);
// Private members of dl_harq_entity
static bool generate_ack_callback(void *arg)
{
demux *demux_unit = (demux*) arg;
return demux_unit->get_uecrid_successful();
}
uint32_t get_harq_sps_pid(uint32_t tti);
uint32_t get_harq_sps_pid(uint32_t tti) { return 0; }
dl_sps dl_sps_assig;
dl_harq_process proc[NOF_HARQ_PROC+1];
std::vector<dl_harq_process> proc;
srslte::timers *timers_db;
mac_interface_rrc::mac_cfg_t *mac_cfg;
demux *demux_unit;
srslte::log *log_h;
srslte::mac_pcap *pcap;
uint16_t last_temporal_crnti;
int si_window_start;
int si_window_start;
float average_retx;
float average_retx;
uint64_t nof_pkts;
};

18
srsue/hdr/mac/mac.h
View File

@ -98,17 +98,6 @@ public:
u_int32_t get_unique_id();
uint32_t get_current_tti();
enum {
HARQ_RTT,
TIME_ALIGNMENT,
CONTENTION_TIMER,
BSR_TIMER_PERIODIC,
BSR_TIMER_RETX,
PHR_TIMER_PERIODIC,
PHR_TIMER_PROHIBIT,
NOF_MAC_TIMERS
} mac_timers_t;
static const int MAC_NOF_UPPER_TIMERS = 20;
@ -117,6 +106,7 @@ private:
static const int MAC_MAIN_THREAD_PRIO = 5;
static const int MAC_PDU_THREAD_PRIO = 6;
static const int MAC_NOF_HARQ_PROC = 8;
// Interaction with PHY
srslte::tti_sync_cv ttisync;
@ -141,9 +131,9 @@ private:
mux mux_unit;
demux demux_unit;
/* DL/UL HARQ */
dl_harq_entity dl_harq;
ul_harq_entity ul_harq;
/* DL/UL HARQ */
dl_harq_entity<MAC_NOF_HARQ_PROC, mac_grant_t, tb_action_dl_t, srslte_phy_grant_t> dl_harq;
ul_harq_entity<MAC_NOF_HARQ_PROC, mac_grant_t, tb_action_ul_t, srslte_phy_grant_t> ul_harq;
/* MAC Uplink-related Procedures */
ra_proc ra_procedure;

45
srsue/hdr/mac/mac_common.h Normal file
View File

@ -0,0 +1,45 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsUE library.
*
* srsUE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsUE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef MAC_COMMON_H
#define MAC_COMMON_H
namespace srsue {
typedef enum {
HARQ_RTT,
TIME_ALIGNMENT,
CONTENTION_TIMER,
BSR_TIMER_PERIODIC,
BSR_TIMER_RETX,
PHR_TIMER_PERIODIC,
PHR_TIMER_PROHIBIT,
NOF_MAC_TIMERS
} mac_timers_t;
} // namespace srsue
#endif // MAC_COMMON_H

12
srsue/hdr/mac/mux.h
View File

@ -55,9 +55,9 @@ namespace srsue {
class mux
{
public:
mux();
mux(uint8_t nof_harq_proc_);
void reset();
void init(rlc_interface_mac *rlc, srslte::log *log_h, bsr_proc *bsr_procedure, phr_proc *phr_procedure_);
void init(rlc_interface_mac *rlc, srslte::log *log_h, bsr_interface_mux *bsr_procedure, phr_proc *phr_procedure_);
bool is_pending_any_sdu();
bool is_pending_sdu(uint32_t lcid);
@ -87,16 +87,17 @@ private:
std::vector<lchid_t> lch;
// Keep track of the PIDs that transmitted BSR reports
bool pid_has_bsr[MAX_HARQ_PROC];
std::vector<bool> pid_has_bsr;
// Mutex for exclusive access
pthread_mutex_t mutex;
srslte::log *log_h;
rlc_interface_mac *rlc;
bsr_proc *bsr_procedure;
bsr_interface_mux *bsr_procedure;
phr_proc *phr_procedure;
uint16_t pending_crnti_ce;
uint8_t nof_harq_proc;
/* Msg3 Buffer */
static const uint32_t MSG3_BUFF_SZ = 128;
@ -105,9 +106,6 @@ private:
/* PDU Buffer */
srslte::sch_pdu pdu_msg;
bool msg3_has_been_transmitted;
};
} // namespace srsue

14
srsue/hdr/mac/proc_bsr.h
View File

@ -37,7 +37,7 @@
namespace srsue {
class bsr_proc : public srslte::timer_callback
class bsr_proc : public srslte::timer_callback, public bsr_interface_mux
{
public:
bsr_proc();
@ -48,18 +48,6 @@ public:
void set_priority(uint32_t lcid, uint32_t priority);
void timer_expired(uint32_t timer_id);
uint32_t get_buffer_state();
typedef enum {
LONG_BSR,
SHORT_BSR,
TRUNC_BSR
} bsr_format_t;
typedef struct {
bsr_format_t format;
uint32_t buff_size[4];
} bsr_t;
bool need_to_send_bsr_on_ul_grant(uint32_t grant_size, bsr_t *bsr);
bool generate_padding_bsr(uint32_t nof_padding_bytes, bsr_t *bsr);
bool need_to_send_sr(uint32_t tti);

371
srsue/hdr/mac/ul_harq.h
View File

@ -27,78 +27,268 @@
#ifndef ULHARQ_H
#define ULHARQ_H
#define Error(fmt, ...) log_h->error_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Warning(fmt, ...) log_h->warning_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Info(fmt, ...) log_h->info_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Debug(fmt, ...) log_h->debug_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#include "srslte/interfaces/ue_interfaces.h"
#include "srslte/common/log.h"
#include "mac/mux.h"
#include "mac/mac_common.h"
#include "mac/ul_sps.h"
#include "srslte/common/mac_pcap.h"
#include "srslte/common/timers.h"
#include "srslte/common/interfaces_common.h"
/* Uplink HARQ entity as defined in 5.4.2 of 36.321 */
namespace srsue {
template <std::size_t N, typename Tgrant, typename Taction, typename Tphygrant>
class ul_harq_entity
{
public:
const static uint32_t NOF_HARQ_PROC = 8;
static uint32_t pidof(uint32_t tti);
static uint32_t pidof(uint32_t tti)
{
return (uint32_t) tti%N;
}
ul_harq_entity() {
ul_harq_entity() : proc(N)
{
pcap = NULL;
timers_db = NULL;
mux_unit = NULL;
log_h = NULL;
mac_cfg = NULL;
params = NULL;
rntis = NULL;
average_retx = 0;
nof_pkts = 0;
nof_pkts = 0;
}
bool init(srslte::log *log_h,
mac_interface_rrc::ue_rnti_t *rntis,
mac_interface_rrc::mac_cfg_t *mac_cfg,
srslte::timers* timers_,
mux *mux_unit);
void reset();
void reset_ndi();
void start_pcap(srslte::mac_pcap* pcap);
bool init(srslte::log *log_h_,
mac_interface_rrc_common::ue_rnti_t *rntis_,
mac_interface_rrc_common::ul_harq_params_t *params_,
srslte::timers* timers_db_,
mux *mux_unit_)
{
log_h = log_h_;
mux_unit = mux_unit_;
params = params_;
rntis = rntis_;
timers_db = timers_db_;
for (uint32_t i=0;i<N;i++) {
if (!proc[i].init(i, this)) {
return false;
}
}
return true;
}
void reset()
{
for (uint32_t i=0;i<N;i++) {
proc[i].reset();
}
ul_sps_assig.clear();
}
void reset_ndi()
{
for (uint32_t i=0;i<N;i++) {
proc[i].reset_ndi();
}
}
void start_pcap(srslte::mac_pcap* pcap_)
{
pcap = pcap_;
}
/***************** PHY->MAC interface for UL processes **************************/
void new_grant_ul(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_ul_t *action);
void new_grant_ul_ack(mac_interface_phy::mac_grant_t grant, bool ack, mac_interface_phy::tb_action_ul_t *action);
void harq_recv(uint32_t tti, bool ack, mac_interface_phy::tb_action_ul_t *action);
void new_grant_ul(Tgrant grant, Taction *action)
{
if (grant.rnti_type == SRSLTE_RNTI_USER ||
grant.rnti_type == SRSLTE_RNTI_TEMP ||
grant.rnti_type == SRSLTE_RNTI_RAR)
{
if (grant.rnti_type == SRSLTE_RNTI_USER && proc[pidof(grant.tti)].is_sps()) {
grant.ndi = true;
}
run_tti(grant.tti, &grant, action);
} else if (grant.rnti_type == SRSLTE_RNTI_SPS) {
if (grant.ndi) {
grant.ndi = proc[pidof(grant.tti)].get_ndi();
run_tti(grant.tti, &grant, action);
} else {
Info("Not implemented\n");
}
}
}
int get_current_tbs(uint32_t tti);
void new_grant_ul_ack(Tgrant grant, bool ack, Taction *action)
{
set_ack(grant.tti, ack, action);
new_grant_ul(grant, action);
}
void harq_recv(uint32_t tti, bool ack, Taction *action)
{
set_ack(tti, ack, action);
run_tti(tti, NULL, action);
}
int get_current_tbs(uint32_t tti)
{
int tti_harq = (int) tti-4;
if (tti_harq < 0) {
tti_harq += 10240;
}
uint32_t pid_harq = pidof(tti_harq);
return proc[pid_harq].get_current_tbs();
}
float get_average_retx();
float get_average_retx()
{
return average_retx;
}
private:
private:
class ul_harq_process {
public:
ul_harq_process();
bool init(uint32_t pid, ul_harq_entity *parent);
void reset();
void reset_ndi();
ul_harq_process()
{
current_tx_nb = 0;
current_irv = 0;
is_initiated = false;
is_grant_configured = false;
tti_last_tx = 0;
bzero(&cur_grant, sizeof(Tgrant));
}
bool init(uint32_t pid_, ul_harq_entity *parent)
{
if (srslte_softbuffer_tx_init(&softbuffer, 110)) {
fprintf(stderr, "Error initiating soft buffer\n");
return false;
} else {
is_initiated = true;
harq_entity = parent;
log_h = harq_entity->log_h;
pid = pid_;
payload_buffer = (uint8_t*) srslte_vec_malloc(payload_buffer_len*sizeof(uint8_t));
if (!payload_buffer) {
Error("Allocating memory\n");
return false;
}
pdu_ptr = payload_buffer;
return true;
}
}
void reset()
{
current_tx_nb = 0;
current_irv = 0;
tti_last_tx = 0;
is_grant_configured = false;
bzero(&cur_grant, sizeof(Tgrant));
}
void reset_ndi() { ndi = false; }
void run_tti(uint32_t tti, mac_interface_phy::mac_grant_t *grant, mac_interface_phy::tb_action_ul_t* action);
void run_tti(uint32_t tti_tx, Tgrant *grant, Taction* action)
{
uint32_t max_retx;
if (is_msg3) {
max_retx = harq_entity->params->max_harq_msg3_tx;
} else {
max_retx = harq_entity->params->max_harq_tx;
}
uint32_t get_rv();
bool has_grant();
// Receive and route HARQ feedbacks
if (grant) {
if ((!(grant->rnti_type == SRSLTE_RNTI_TEMP) && grant->ndi != get_ndi()) ||
(grant->rnti_type == SRSLTE_RNTI_USER && !has_grant()) ||
grant->is_from_rar)
{
// New transmission
void set_harq_feedback(bool ack);
bool get_ndi();
bool is_sps();
uint32_t last_tx_tti();
uint32_t get_nof_retx();
int get_current_tbs();
// Uplink grant in a RAR
if (grant->is_from_rar) {
Debug("Getting Msg3 buffer payload, grant size=%d bytes\n", grant->n_bytes);
pdu_ptr = harq_entity->mux_unit->msg3_get(payload_buffer, grant->n_bytes);
if (pdu_ptr) {
generate_new_tx(tti_tx, true, grant, action);
} else {
Warning("UL RAR grant available but no Msg3 on buffer\n");
}
// Normal UL grant
} else {
// Request a MAC PDU from the Multiplexing & Assemble Unit
pdu_ptr = harq_entity->mux_unit->pdu_get(payload_buffer, grant->n_bytes, tti_tx, pid);
if (pdu_ptr) {
generate_new_tx(tti_tx, false, grant, action);
} else {
Warning("Uplink grant but no MAC PDU in Multiplex Unit buffer\n");
}
}
} else {
// Adaptive Re-TX
if (current_tx_nb >= max_retx) {
Info("UL %d: Maximum number of ReTX reached (%d). Discarting TB.\n", pid, max_retx);
reset();
action->expect_ack = false;
} else {
generate_retx(tti_tx, grant, action);
}
}
} else if (has_grant()) {
// Non-Adaptive Re-Tx
if (current_tx_nb >= max_retx) {
Info("UL %d: Maximum number of ReTX reached (%d). Discarting TB.\n", pid, max_retx);
reset();
action->expect_ack = false;
} else {
generate_retx(tti_tx, action);
}
}
if (harq_entity->pcap && grant) {
if (grant->is_from_rar) {
grant->rnti = harq_entity->rntis->temp_rnti;
}
harq_entity->pcap->write_ul_crnti(pdu_ptr, grant->n_bytes, grant->rnti, get_nof_retx(), tti_tx);
}
}
void set_harq_feedback(bool ack)
{
harq_feedback = ack;
// UL packet successfully delivered
if (ack) {
Info("UL %d: HARQ = ACK for UL transmission. Discarting TB.\n", pid);
reset();
} else {
Info("UL %d: HARQ = NACK for UL transmission\n", pid);
}
}
uint32_t get_rv()
{
int rv_of_irv[4] = {0, 2, 3, 1};
return rv_of_irv[current_irv%4];
}
bool has_grant() { return is_grant_configured; }
bool get_ndi() { return ndi; }
bool is_sps() { return false; }
uint32_t last_tx_tti() { return tti_last_tx; }
uint32_t get_nof_retx() { return current_tx_nb; }
int get_current_tbs() { return cur_grant.n_bytes*8; }
private:
mac_interface_phy::mac_grant_t cur_grant;
Tgrant cur_grant;
uint32_t pid;
uint32_t current_tx_nb;
@ -118,28 +308,109 @@ private:
uint8_t *payload_buffer;
uint8_t *pdu_ptr;
void generate_retx(uint32_t tti_tx, mac_interface_phy::tb_action_ul_t *action);
void generate_retx(uint32_t tti_tx, mac_interface_phy::mac_grant_t *grant,
mac_interface_phy::tb_action_ul_t *action);
void generate_new_tx(uint32_t tti_tx, bool is_msg3, mac_interface_phy::mac_grant_t *grant,
mac_interface_phy::tb_action_ul_t *action);
void generate_tx(uint32_t tti_tx, mac_interface_phy::tb_action_ul_t *action);
void generate_retx(uint32_t tti_tx, Taction *action)
{
generate_retx(tti_tx, NULL, action);
}
// Retransmission with or w/o grant (Section 5.4.2.2)
void generate_retx(uint32_t tti_tx, Tgrant *grant,
Taction *action)
{
int irv_of_rv[4] = {0, 3, 1, 2};
if (grant) {
// HARQ entity requests an adaptive transmission
if (grant->rv) {
current_irv = irv_of_rv[grant->rv%4];
}
memcpy(&cur_grant, grant, sizeof(Tgrant));
harq_feedback = false;
Info("UL %d: Adaptive retx=%d, RV=%d, TBS=%d\n",
pid, current_tx_nb, get_rv(), grant->n_bytes);
generate_tx(tti_tx, action);
} else {
Info("UL %d: Non-Adaptive retx=%d, RV=%d, TBS=%d\n",
pid, current_tx_nb, get_rv(), cur_grant.n_bytes);
// HARQ entity requests a non-adaptive transmission
if (!harq_feedback) {
generate_tx(tti_tx, action);
}
}
// On every Msg3 retransmission, restart mac-ContentionResolutionTimer as defined in Section 5.1.5
if (is_msg3) {
harq_entity->timers_db->get(CONTENTION_TIMER)->reset();
}
harq_entity->mux_unit->pusch_retx(tti_tx, pid);
}
// New transmission (Section 5.4.2.2)
void generate_new_tx(uint32_t tti_tx, bool is_msg3_, Tgrant *grant, Taction *action)
{
if (grant) {
// Compute average number of retransmissions per packet considering previous packet
harq_entity->average_retx = SRSLTE_VEC_CMA((float) current_tx_nb, harq_entity->average_retx, harq_entity->nof_pkts++);
memcpy(&cur_grant, grant, sizeof(Tgrant));
harq_feedback = false;
is_grant_configured = true;
current_tx_nb = 0;
current_irv = 0;
is_msg3 = is_msg3_;
Info("UL %d: New TX%s, RV=%d, TBS=%d, RNTI=%d\n",
pid, is_msg3?" for Msg3":"", get_rv(), cur_grant.n_bytes, cur_grant.rnti);
generate_tx(tti_tx, action);
}
}
// Transmission of pending frame (Section 5.4.2.2)
void generate_tx(uint32_t tti_tx, Taction *action)
{
action->current_tx_nb = current_tx_nb;
current_tx_nb++;
action->expect_ack = true;
action->rnti = is_msg3?harq_entity->rntis->temp_rnti:cur_grant.rnti;
action->rv = cur_grant.rv>0?cur_grant.rv:get_rv();
action->softbuffer = &softbuffer;
action->tx_enabled = true;
action->payload_ptr = pdu_ptr;
memcpy(&action->phy_grant, &cur_grant.phy_grant, sizeof(Tphygrant));
current_irv = (current_irv+1)%4;
tti_last_tx = tti_tx;
}
};
void run_tti(uint32_t tti, mac_interface_phy::mac_grant_t *grant, mac_interface_phy::tb_action_ul_t* action);
void set_ack(uint32_t tti, bool ack);
// Implements Section 5.4.2.1
// Called with UL grant
void run_tti(uint32_t tti, Tgrant *grant, Taction* action)
{
uint32_t tti_tx = (tti+action->tti_offset)%10240;
proc[pidof(tti_tx)].run_tti(tti_tx, grant, action);
}
void set_ack(uint32_t tti, bool ack, Taction *action)
{
int tti_harq = (int) tti - action->tti_offset;
if (tti_harq < 0) {
tti_harq += 10240;
}
uint32_t pid_harq = pidof(tti_harq);
if (proc[pid_harq].has_grant() && (proc[pid_harq].last_tx_tti() <= (uint32_t)tti_harq)) {
proc[pid_harq].set_harq_feedback(ack);
}
}
ul_sps ul_sps_assig;
srslte::timers *timers_db;
mux *mux_unit;
ul_harq_process proc[NOF_HARQ_PROC];
std::vector<ul_harq_process> proc;
srslte::log *log_h;
srslte::mac_pcap *pcap;
mac_interface_rrc::ue_rnti_t *rntis;
mac_interface_rrc::mac_cfg_t *mac_cfg;
mac_interface_rrc_common::ue_rnti_t *rntis;
mac_interface_rrc_common::ul_harq_params_t *params;
float average_retx;
uint64_t nof_pkts;

83
srsue/hdr/ue.h
View File

@ -37,6 +37,7 @@
#include <string>
#include <pthread.h>
#include "ue_base.h"
#include "srslte/radio/radio_multi.h"
#include "phy/phy.h"
#include "mac/mac.h"
@ -56,90 +57,16 @@
namespace srsue {
/*******************************************************************************
UE Parameters
*******************************************************************************/
typedef struct {
uint32_t dl_earfcn;
float dl_freq;
float ul_freq;
float rx_gain;
float tx_gain;
uint32_t nof_rx_ant;
std::string device_name;
std::string device_args;
std::string time_adv_nsamples;
std::string burst_preamble;
}rf_args_t;
typedef struct {
bool enable;
std::string filename;
}pcap_args_t;
typedef struct {
bool enable;
std::string phy_filename;
std::string radio_filename;
}trace_args_t;
typedef struct {
std::string phy_level;
std::string mac_level;
std::string rlc_level;
std::string pdcp_level;
std::string rrc_level;
std::string gw_level;
std::string nas_level;
std::string usim_level;
std::string all_level;
int phy_hex_limit;
int mac_hex_limit;
int rlc_hex_limit;
int pdcp_hex_limit;
int rrc_hex_limit;
int gw_hex_limit;
int nas_hex_limit;
int usim_hex_limit;
int all_hex_limit;
std::string filename;
}log_args_t;
typedef struct {
bool enable;
}gui_args_t;
typedef struct {
phy_args_t phy;
float metrics_period_secs;
bool pregenerate_signals;
int ue_cateogry;
}expert_args_t;
typedef struct {
rf_args_t rf;
rf_cal_t rf_cal;
pcap_args_t pcap;
trace_args_t trace;
log_args_t log;
gui_args_t gui;
usim_args_t usim;
expert_args_t expert;
}all_args_t;
/*******************************************************************************
Main UE class
*******************************************************************************/
class ue
:public ue_interface
,public ue_metrics_interface
:public ue_base
{
public:
static ue* get_instance(void);
static void cleanup(void);
ue();
bool init(all_args_t *args_);
void stop();
@ -159,8 +86,6 @@ public:
private:
static ue *instance;
ue();
virtual ~ue();
srslte::radio_multi radio;
@ -191,8 +116,6 @@ private:
all_args_t *args;
bool started;
rf_metrics_t rf_metrics;
srslte::LOG_LEVEL_ENUM level(std::string l);
bool check_srslte_version();
};

165
srsue/hdr/ue_base.h Normal file
View File

@ -0,0 +1,165 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsUE library.
*
* srsUE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsUE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
/******************************************************************************
* File: ue_base.h
* Description: Base class for UEs.
*****************************************************************************/
#ifndef UE_BASE_H
#define UE_BASE_H
#include <stdarg.h>
#include <string>
#include <pthread.h>
#include "srslte/radio/radio_multi.h"
#include "phy/phy.h"
#include "upper/usim.h"
#include "srslte/interfaces/ue_interfaces.h"
#include "srslte/common/logger.h"
#include "srslte/common/log_filter.h"
#include "ue_metrics_interface.h"
namespace srsue {
/*******************************************************************************
UE Parameters
*******************************************************************************/
typedef struct {
uint32_t dl_earfcn;
float dl_freq;
float ul_freq;
float rx_gain;
float tx_gain;
uint32_t nof_rx_ant;
std::string device_name;
std::string device_args;
std::string time_adv_nsamples;
std::string burst_preamble;
}rf_args_t;
typedef struct {
bool enable;
std::string filename;
}pcap_args_t;
typedef struct {
bool enable;
std::string phy_filename;
std::string radio_filename;
}trace_args_t;
typedef struct {
std::string phy_level;
std::string mac_level;
std::string rlc_level;
std::string pdcp_level;
std::string rrc_level;
std::string gw_level;
std::string nas_level;
std::string usim_level;
std::string all_level;
int phy_hex_limit;
int mac_hex_limit;
int rlc_hex_limit;
int pdcp_hex_limit;
int rrc_hex_limit;
int gw_hex_limit;
int nas_hex_limit;
int usim_hex_limit;
int all_hex_limit;
std::string filename;
}log_args_t;
typedef struct {
bool enable;
}gui_args_t;
typedef struct {
phy_args_t phy;
float metrics_period_secs;
bool pregenerate_signals;
std::string ue_cateogry;
}expert_args_t;
typedef struct {
rf_args_t rf;
rf_cal_t rf_cal;
pcap_args_t pcap;
trace_args_t trace;
log_args_t log;
gui_args_t gui;
usim_args_t usim;
expert_args_t expert;
}all_args_t;
typedef enum {
LTE = 0,
SRSUE_INSTANCE_TYPE_NITEMS
} srsue_instance_type_t;
static const char srsue_instance_type_text[SRSUE_INSTANCE_TYPE_NITEMS][10] = { "LTE" };
/*******************************************************************************
Main UE class
*******************************************************************************/
class ue_base
:public ue_interface
,public ue_metrics_interface
{
public:
ue_base() {}
virtual ~ue_base() {}
static ue_base* get_instance(srsue_instance_type_t type);
void cleanup(void);
virtual bool init(all_args_t *args_) = 0;
virtual void stop() = 0;
virtual bool is_attached() = 0;
virtual void start_plot() = 0;
void handle_rf_msg(srslte_rf_error_t error);
// UE metrics interface
virtual bool get_metrics(ue_metrics_t &m) = 0;
virtual void pregenerate_signals(bool enable) = 0;
srslte::log_filter rf_log;
rf_metrics_t rf_metrics;
srslte::LOG_LEVEL_ENUM level(std::string l);
};
} // namespace srsue
#endif // UE_BASE_H

13
srsue/hdr/upper/nas.h
View File

@ -66,12 +66,11 @@ class nas
: public nas_interface_rrc, public nas_interface_ue {
public:
nas();
void init(usim_interface_nas *usim_,
rrc_interface_nas *rrc_,
gw_interface_nas *gw_,
srslte::log *nas_log_);
void init(usim_interface_nas *usim_,
rrc_interface_nas *rrc_,
gw_interface_nas *gw_,
srslte::log *nas_log_,
srslte::srslte_nas_config_t cfg_);
void stop();
emm_state_t get_state();
@ -101,6 +100,8 @@ private:
usim_interface_nas *usim;
gw_interface_nas *gw;
srslte::srslte_nas_config_t cfg;
emm_state_t state;
plmn_selection_state_t plmn_selection;

132
srsue/hdr/upper/rrc.h
View File

@ -29,6 +29,7 @@
#include "pthread.h"
#include "rrc_common.h"
#include "srslte/common/buffer_pool.h"
#include "srslte/common/log.h"
#include "srslte/common/common.h"
@ -42,29 +43,12 @@ using srslte::byte_buffer_t;
namespace srsue {
// RRC states (3GPP 36.331 v10.0.0)
typedef enum {
RRC_STATE_IDLE = 0,
RRC_STATE_PLMN_SELECTION,
RRC_STATE_CELL_SELECTING,
RRC_STATE_CELL_SELECTED,
RRC_STATE_CONNECTING,
RRC_STATE_CONNECTED,
RRC_STATE_N_ITEMS,
} rrc_state_t;
static const char rrc_state_text[RRC_STATE_N_ITEMS][100] = {"IDLE",
"PLMN SELECTION",
"CELL SELECTION",
"CONNECTING",
"CONNECTED",
"RRC CONNECTED"};
typedef enum {
SI_ACQUIRE_IDLE = 0,
SI_ACQUIRE_SIB1,
SI_ACQUIRE_SIB2
} si_acquire_state_t;
class rrc
: public rrc_interface_nas,
public rrc_interface_phy,
@ -206,72 +190,68 @@ private:
void write_pdu_pcch(byte_buffer_t *pdu);
// Radio bearers
typedef enum{
RB_ID_SRB0 = 0,
RB_ID_SRB1,
RB_ID_SRB2,
RB_ID_DRB1,
RB_ID_DRB2,
RB_ID_DRB3,
RB_ID_DRB4,
RB_ID_DRB5,
RB_ID_DRB6,
RB_ID_DRB7,
RB_ID_DRB8,
RB_ID_MAX
} rb_id_t;
std::map<uint8_t, std::string> bearers;
std::string get_rb_name(uint32_t lcid) { return bearers.at(lcid); }
// RLC interface
void max_retx_attempted();
void max_retx_attempted();
// Senders
void send_con_request();
void send_con_restablish_request();
void send_con_restablish_complete();
void send_con_setup_complete(byte_buffer_t *nas_msg);
void send_ul_info_transfer(uint32_t lcid, byte_buffer_t *sdu);
void send_security_mode_complete(uint32_t lcid, byte_buffer_t *pdu);
void send_rrc_con_reconfig_complete(uint32_t lcid, byte_buffer_t *pdu);
void send_rrc_ue_cap_info(uint32_t lcid, byte_buffer_t *pdu);
void send_con_request();
void send_con_restablish_request();
void send_con_restablish_complete();
void send_con_setup_complete(byte_buffer_t *nas_msg);
void send_ul_info_transfer(uint32_t lcid, byte_buffer_t *sdu);
void send_security_mode_complete(uint32_t lcid, byte_buffer_t *pdu);
void send_rrc_con_reconfig_complete(uint32_t lcid, byte_buffer_t *pdu);
void send_rrc_ue_cap_info(uint32_t lcid, byte_buffer_t *pdu);
// Parsers
void parse_dl_ccch(byte_buffer_t *pdu);
void parse_dl_dcch(uint32_t lcid, byte_buffer_t *pdu);
void parse_dl_info_transfer(uint32_t lcid, byte_buffer_t *pdu);
void parse_dl_ccch(byte_buffer_t *pdu);
void parse_dl_dcch(uint32_t lcid, byte_buffer_t *pdu);
void parse_dl_info_transfer(uint32_t lcid, byte_buffer_t *pdu);
// Helpers
void reset_ue();
void rrc_connection_release();
void radio_link_failure();
uint32_t sib_start_tti(uint32_t tti, uint32_t period, uint32_t x);
void apply_sib2_configs(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_2_STRUCT *sib2);
void handle_con_setup(LIBLTE_RRC_CONNECTION_SETUP_STRUCT *setup);
void handle_con_reest(LIBLTE_RRC_CONNECTION_REESTABLISHMENT_STRUCT *setup);
void
handle_rrc_con_reconfig(uint32_t lcid, LIBLTE_RRC_CONNECTION_RECONFIGURATION_STRUCT *reconfig, byte_buffer_t *pdu);
void add_srb(LIBLTE_RRC_SRB_TO_ADD_MOD_STRUCT *srb_cnfg);
void add_drb(LIBLTE_RRC_DRB_TO_ADD_MOD_STRUCT *drb_cnfg);
void release_drb(uint8_t lcid);
void apply_rr_config_dedicated(LIBLTE_RRC_RR_CONFIG_DEDICATED_STRUCT *cnfg);
void apply_phy_config_dedicated(LIBLTE_RRC_PHYSICAL_CONFIG_DEDICATED_STRUCT *phy_cnfg, bool apply_defaults);
void apply_mac_config_dedicated(LIBLTE_RRC_MAC_MAIN_CONFIG_STRUCT *mac_cfg, bool apply_defaults);
// Helpers for setting default values
void set_phy_default_pucch_srs();
void set_phy_default();
void set_mac_default();
void set_rrc_default();
void reset_ue();
void rrc_connection_release();
void radio_link_failure();
static void* start_sib_thread(void *rrc_);
void sib_search();
uint32_t sib_start_tti(uint32_t tti, uint32_t period, uint32_t x);
void apply_sib2_configs(LIBLTE_RRC_SYS_INFO_BLOCK_TYPE_2_STRUCT *sib2);
void handle_con_setup(LIBLTE_RRC_CONNECTION_SETUP_STRUCT *setup);
void handle_con_reest(LIBLTE_RRC_CONNECTION_REESTABLISHMENT_STRUCT *setup);
void handle_rrc_con_reconfig(uint32_t lcid, LIBLTE_RRC_CONNECTION_RECONFIGURATION_STRUCT *reconfig, byte_buffer_t *pdu);
void add_srb(LIBLTE_RRC_SRB_TO_ADD_MOD_STRUCT *srb_cnfg);
void add_drb(LIBLTE_RRC_DRB_TO_ADD_MOD_STRUCT *drb_cnfg);
void release_drb(uint8_t lcid);
void apply_rr_config_dedicated(LIBLTE_RRC_RR_CONFIG_DEDICATED_STRUCT *cnfg);
void apply_phy_config_dedicated(LIBLTE_RRC_PHYSICAL_CONFIG_DEDICATED_STRUCT *phy_cnfg, bool apply_defaults);
void apply_mac_config_dedicated(LIBLTE_RRC_MAC_MAIN_CONFIG_STRUCT *mac_cfg, bool apply_defaults);
// Helpers for setting default values
void set_phy_default_pucch_srs();
void set_phy_default();
void set_mac_default();
void set_rrc_default();
void set_bearers();
};
} // namespace srsue

53
srsue/hdr/upper/rrc_common.h Normal file
View File

@ -0,0 +1,53 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsUE library.
*
* srsUE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsUE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef RRC_COMMON_H
#define RRC_COMMON_H
namespace srsue {
// RRC states (3GPP 36.331 v10.0.0)
typedef enum {
RRC_STATE_IDLE = 0,
RRC_STATE_PLMN_SELECTION,
RRC_STATE_CELL_SELECTING,
RRC_STATE_CELL_SELECTED,
RRC_STATE_CONNECTING,
RRC_STATE_CONNECTED,
RRC_STATE_N_ITEMS,
} rrc_state_t;
static const char rrc_state_text[RRC_STATE_N_ITEMS][100] = {"IDLE",
"PLMN SELECTION",
"CELL SELECTION",
"CONNECTING",
"CONNECTED",
"RRC CONNECTED"};
} // namespace srsue
#endif // RRC_COMMON_H

6
srsue/src/CMakeLists.txt
View File

@ -31,7 +31,7 @@ if (RPATH)
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
endif (RPATH)
add_executable(srsue main.cc ue.cc metrics_stdout.cc)
add_executable(srsue main.cc ue_base.cc ue.cc metrics_stdout.cc)
target_link_libraries(srsue srsue_mac
srsue_phy
srsue_upper
@ -46,6 +46,8 @@ if (RPATH)
set_target_properties(srsue PROPERTIES INSTALL_RPATH ".")
endif (RPATH)
install(TARGETS srsue DESTINATION ${RUNTIME_DIR})
########################################################################
# Option to run command after build (useful for remote builds)
########################################################################
@ -55,3 +57,5 @@ if (NOT ${BUILDUE_CMD} STREQUAL "")
else(NOT ${BUILDUE_CMD} STREQUAL "")
message(STATUS "No post-build-UE command defined")
endif (NOT ${BUILDUE_CMD} STREQUAL "")
install(TARGETS srsue DESTINATION ${RUNTIME_DIR})

16
srsue/src/mac/demux.cc
View File

@ -36,11 +36,11 @@
namespace srsue {
demux::demux() : mac_msg(20), pending_mac_msg(20)
demux::demux(uint8_t nof_harq_proc_) : mac_msg(20), pending_mac_msg(20), nof_harq_proc(nof_harq_proc_)
{
}
void demux::init(phy_interface_mac* phy_h_, rlc_interface_mac *rlc_, srslte::log* log_h_, srslte::timers* timers_db_)
void demux::init(phy_interface_mac_common* phy_h_, rlc_interface_mac *rlc_, srslte::log* log_h_, srslte::timers* timers_db_)
{
phy_h = phy_h_;
log_h = log_h_;
@ -68,9 +68,9 @@ void demux::deallocate(uint8_t* payload_buffer_ptr)
uint8_t* demux::request_buffer(uint32_t pid, uint32_t len)
{
uint8_t *buff = NULL;
if (pid < NOF_HARQ_PID) {
if (pid < nof_harq_proc) {
return pdus.request(len);
} else if (pid == NOF_HARQ_PID) {
} else if (pid == nof_harq_proc) {
buff = bcch_buffer;
} else {
Error("Requested buffer for invalid PID=%d\n", pid);
@ -119,9 +119,9 @@ void demux::push_pdu_temp_crnti(uint8_t *buff, uint32_t nof_bytes)
*/
void demux::push_pdu(uint32_t pid, uint8_t *buff, uint32_t nof_bytes, uint32_t tstamp)
{
if (pid < NOF_HARQ_PID) {
if (pid < nof_harq_proc) {
return pdus.push(buff, nof_bytes, tstamp);
} else if (pid == NOF_HARQ_PID) {
} else if (pid == nof_harq_proc) {
/* Demultiplexing of MAC PDU associated with SI-RNTI. The PDU passes through
* the MAC in transparent mode.
* Warning: In this case function sends the message to RLC now, since SI blocks do not
@ -190,8 +190,8 @@ bool demux::process_ce(srslte::sch_subh *subh) {
Info("Received TA=%d\n", subh->get_ta_cmd());
// Start or restart timeAlignmentTimer
timers_db->get(mac::TIME_ALIGNMENT)->reset();
timers_db->get(mac::TIME_ALIGNMENT)->run();
timers_db->get(TIME_ALIGNMENT)->reset();
timers_db->get(TIME_ALIGNMENT)->run();
break;
case srslte::sch_subh::PADDING:
break;

337
srsue/src/mac/dl_harq.cc
View File

@ -1,337 +0,0 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsUE library.
*
* srsUE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsUE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#define Error(fmt, ...) log_h->error_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Warning(fmt, ...) log_h->warning_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Info(fmt, ...) log_h->info_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Debug(fmt, ...) log_h->debug_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#include "mac/mac.h"
#include "mac/dl_harq.h"
namespace srsue {
/***********************************************************
*
* HARQ ENTITY
*
*********************************************************/
dl_harq_entity::dl_harq_entity()
{
pcap = NULL;
}
bool dl_harq_entity::init(srslte::log* log_h_, mac_interface_rrc::mac_cfg_t *mac_cfg_, srslte::timers* timers_, demux *demux_unit_)
{
timers_db = timers_;
demux_unit = demux_unit_;
mac_cfg = mac_cfg_;
si_window_start = 0;
log_h = log_h_;
for (uint32_t i=0;i<NOF_HARQ_PROC+1;i++) {
if (!proc[i].init(i, this)) {
return false;
}
}
return true;
}
void dl_harq_entity::start_pcap(srslte::mac_pcap* pcap_)
{
pcap = pcap_;
}
void dl_harq_entity::reset()
{
for (uint32_t i=0;i<NOF_HARQ_PROC+1;i++) {
proc[i].reset();
}
dl_sps_assig.clear();
}
uint32_t dl_harq_entity::get_harq_sps_pid(uint32_t tti) {
return 0;
}
void dl_harq_entity::new_grant_dl(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_dl_t* action)
{
if (grant.rnti_type != SRSLTE_RNTI_SPS) {
uint32_t harq_pid;
// Set BCCH PID for SI RNTI
if (grant.rnti_type == SRSLTE_RNTI_SI) {
harq_pid = HARQ_BCCH_PID;
} else {
harq_pid = grant.pid%NOF_HARQ_PROC;
}
if (grant.rnti_type == SRSLTE_RNTI_TEMP && last_temporal_crnti != grant.rnti) {
grant.ndi = true;
Info("Set NDI=1 for Temp-RNTI DL grant\n");
last_temporal_crnti = grant.rnti;
}
if (grant.rnti_type == SRSLTE_RNTI_USER && proc[harq_pid].is_sps()) {
grant.ndi = true;
Info("Set NDI=1 for C-RNTI DL grant\n");
}
proc[harq_pid].new_grant_dl(grant, action);
} else {
/* This is for SPS scheduling */
uint32_t harq_pid = get_harq_sps_pid(grant.tti)%NOF_HARQ_PROC;
if (grant.ndi) {
grant.ndi = false;
proc[harq_pid].new_grant_dl(grant, action);
} else {
if (grant.is_sps_release) {
dl_sps_assig.clear();
if (timers_db->get(mac::TIME_ALIGNMENT)->is_running()) {
//phy_h->send_sps_ack();
Warning("PHY Send SPS ACK not implemented\n");
}
} else {
Error("SPS not implemented\n");
//dl_sps_assig.reset(grant.tti, grant);
//grant.ndi = true;
//procs[harq_pid].save_grant();
}
}
}
}
void dl_harq_entity::tb_decoded(bool ack, srslte_rnti_type_t rnti_type, uint32_t harq_pid)
{
if (rnti_type == SRSLTE_RNTI_SI) {
proc[NOF_HARQ_PROC].tb_decoded(ack);
} else {
proc[harq_pid%NOF_HARQ_PROC].tb_decoded(ack);
}
}
int dl_harq_entity::get_current_tbs(uint32_t harq_pid)
{
return proc[harq_pid%NOF_HARQ_PROC].get_current_tbs();
}
bool dl_harq_entity::generate_ack_callback(void *arg)
{
demux *demux_unit = (demux*) arg;
return demux_unit->get_uecrid_successful();
}
void dl_harq_entity::set_si_window_start(int si_window_start_)
{
si_window_start = si_window_start_;
}
float dl_harq_entity::get_average_retx()
{
return average_retx;
}
/***********************************************************
*
* HARQ PROCESS
*
*********************************************************/
dl_harq_entity::dl_harq_process::dl_harq_process() {
is_initiated = false;
ack = false;
bzero(&cur_grant, sizeof(mac_interface_phy::mac_grant_t));
}
void dl_harq_entity::dl_harq_process::reset() {
ack = false;
payload_buffer_ptr = NULL;
bzero(&cur_grant, sizeof(mac_interface_phy::mac_grant_t));
if (is_initiated) {
srslte_softbuffer_rx_reset(&softbuffer);
}
}
bool dl_harq_entity::dl_harq_process::init(uint32_t pid_, dl_harq_entity *parent) {
if (srslte_softbuffer_rx_init(&softbuffer, SRSLTE_MAX_PRB)) {
fprintf(stderr, "Error initiating soft buffer\n");
return false;
} else {
pid = pid_;
is_initiated = true;
harq_entity = parent;
log_h = harq_entity->log_h;
return true;
}
}
bool dl_harq_entity::dl_harq_process::is_sps()
{
return false;
}
bool dl_harq_entity::dl_harq_process::calc_is_new_transmission(mac_interface_phy::mac_grant_t grant) {
bool is_new_tb = true;
if ((srslte_tti_interval(grant.tti, cur_grant.tti) <= 8 && (grant.n_bytes == cur_grant.n_bytes)) ||
pid == HARQ_BCCH_PID)
{
is_new_tb = false;
}
if ((grant.ndi != cur_grant.ndi && !is_new_tb) || // NDI toggled for same TB
is_new_tb || // is new TB
(pid == HARQ_BCCH_PID && grant.rv == 0)) // Broadcast PID and 1st TX (RV=0)
{
is_new_transmission = true;
Debug("Set HARQ for new transmission\n");
} else {
is_new_transmission = false;
Debug("Set HARQ for retransmission\n");
}
return is_new_transmission;
}
void dl_harq_entity::dl_harq_process::new_grant_dl(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_dl_t* action)
{
// Compute RV for BCCH when not specified in PDCCH format
if (pid == HARQ_BCCH_PID && grant.rv == -1) {
uint32_t k;
if ((grant.tti/10)%2 == 0 && grant.tti%10 == 5) { // This is SIB1, k is different
k = (grant.tti/20)%4;
grant.rv = ((uint32_t) ceilf((float)1.5*k))%4;
} else if (grant.rv == -1) {
k = (grant.tti-harq_entity->si_window_start)%4;
grant.rv = ((uint32_t) ceilf((float)1.5*k))%4;
}
}
calc_is_new_transmission(grant);
if (is_new_transmission) {
ack = false;
srslte_softbuffer_rx_reset_tbs(&softbuffer, cur_grant.n_bytes*8);
n_retx = 0;
}
// Save grant
grant.last_ndi = cur_grant.ndi;
grant.last_tti = cur_grant.tti;
memcpy(&cur_grant, &grant, sizeof(mac_interface_phy::mac_grant_t));
// Fill action structure
bzero(action, sizeof(mac_interface_phy::tb_action_dl_t));
action->default_ack = ack;
action->generate_ack = true;
action->decode_enabled = false;
// If data has not yet been successfully decoded
if (ack == false) {
// Instruct the PHY To combine the received data and attempt to decode it
payload_buffer_ptr = harq_entity->demux_unit->request_buffer(pid, cur_grant.n_bytes);
action->payload_ptr = payload_buffer_ptr;
if (!action->payload_ptr) {
action->decode_enabled = false;
Error("Can't get a buffer for TBS=%d\n", cur_grant.n_bytes);
return;
}
action->decode_enabled = true;
action->rv = cur_grant.rv;
action->rnti = cur_grant.rnti;
action->softbuffer = &softbuffer;
memcpy(&action->phy_grant, &cur_grant.phy_grant, sizeof(srslte_phy_grant_t));
n_retx++;
} else {
Warning("DL PID %d: Received duplicate TB. Discarting and retransmitting ACK\n", pid);
}
if (pid == HARQ_BCCH_PID || harq_entity->timers_db->get(mac::TIME_ALIGNMENT)->is_expired()) {
// Do not generate ACK
Debug("Not generating ACK\n");
action->generate_ack = false;
} else {
if (cur_grant.rnti_type == SRSLTE_RNTI_TEMP && ack == false) {
// Postpone ACK after contention resolution is resolved
action->generate_ack_callback = harq_entity->generate_ack_callback;
action->generate_ack_callback_arg = harq_entity->demux_unit;
Debug("ACK pending contention resolution\n");
} else {
Debug("Generating ACK\n");
}
}
}
int dl_harq_entity::dl_harq_process::get_current_tbs()
{
return cur_grant.n_bytes*8;
}
void dl_harq_entity::dl_harq_process::tb_decoded(bool ack_)
{
ack = ack_;
if (ack == true) {
if (pid == HARQ_BCCH_PID) {
if (harq_entity->pcap) {
harq_entity->pcap->write_dl_sirnti(payload_buffer_ptr, cur_grant.n_bytes, ack, cur_grant.tti);
}
Debug("Delivering PDU=%d bytes to Dissassemble and Demux unit (BCCH)\n", cur_grant.n_bytes);
harq_entity->demux_unit->push_pdu(pid, payload_buffer_ptr, cur_grant.n_bytes, cur_grant.tti);
} else {
if (harq_entity->pcap) {
harq_entity->pcap->write_dl_crnti(payload_buffer_ptr, cur_grant.n_bytes, cur_grant.rnti, ack, cur_grant.tti);
}
if (ack) {
if (cur_grant.rnti_type == SRSLTE_RNTI_TEMP) {
Debug("Delivering PDU=%d bytes to Dissassemble and Demux unit (Temporal C-RNTI)\n", cur_grant.n_bytes);
harq_entity->demux_unit->push_pdu_temp_crnti(payload_buffer_ptr, cur_grant.n_bytes);
} else {
Debug("Delivering PDU=%d bytes to Dissassemble and Demux unit\n", cur_grant.n_bytes);
harq_entity->demux_unit->push_pdu(pid, payload_buffer_ptr, cur_grant.n_bytes, cur_grant.tti);
// Compute average number of retransmissions per packet
harq_entity->average_retx = SRSLTE_VEC_CMA((float) n_retx, harq_entity->average_retx, harq_entity->nof_pkts++);
}
}
}
} else {
harq_entity->demux_unit->deallocate(payload_buffer_ptr);
}
Info("DL %d: %s tbs=%d, rv=%d, ack=%s, ndi=%d (%d), tti=%d (%d)\n",
pid, is_new_transmission?"newTX":"reTX ",
cur_grant.n_bytes, cur_grant.rv, ack?"OK":"KO",
cur_grant.ndi, cur_grant.last_ndi, cur_grant.tti, cur_grant.last_tti);
if (ack && pid == HARQ_BCCH_PID) {
reset();
}
}
}

18
srsue/src/mac/mac.cc
View File

@ -42,7 +42,9 @@
namespace srsue {
mac::mac() : ttisync(10240),
timers_db((uint32_t) NOF_MAC_TIMERS),
timers_db((uint32_t) NOF_MAC_TIMERS),
mux_unit(MAC_NOF_HARQ_PROC),
demux_unit(MAC_NOF_HARQ_PROC),
pdu_process_thread(&demux_unit)
{
started = false;
@ -65,13 +67,13 @@ bool mac::init(phy_interface_mac *phy, rlc_interface_mac *rlc, rrc_interface_mac
srslte_softbuffer_rx_init(&pch_softbuffer, 100);
bsr_procedure.init( rlc_h, log_h, &config, &timers_db);
phr_procedure.init(phy_h, log_h, &config, &timers_db);
mux_unit.init ( rlc_h, log_h, &bsr_procedure, &phr_procedure);
demux_unit.init (phy_h, rlc_h, log_h, &timers_db);
ra_procedure.init (phy_h, rrc, log_h, &uernti, &config, &timers_db, &mux_unit, &demux_unit);
phr_procedure.init(phy_h, log_h, &config, &timers_db);
mux_unit.init ( rlc_h, log_h, &bsr_procedure, &phr_procedure);
demux_unit.init (phy_h, rlc_h, log_h, &timers_db);
ra_procedure.init (phy_h, rrc, log_h, &uernti, &config, &timers_db, &mux_unit, &demux_unit);
sr_procedure.init (phy_h, rrc, log_h, &config);
ul_harq.init ( log_h, &uernti, &config, &timers_db, &mux_unit);
dl_harq.init ( log_h, &config, &timers_db, &demux_unit);
ul_harq.init ( log_h, &uernti, &config.ul_harq_params, &timers_db, &mux_unit);
dl_harq.init ( log_h, &timers_db, &demux_unit);
reset();
@ -293,7 +295,7 @@ void mac::new_grant_ul(mac_interface_phy::mac_grant_t grant, mac_interface_phy::
/* Start PHR Periodic timer on first UL grant */
if (is_first_ul_grant) {
is_first_ul_grant = false;
timers_db.get(mac::PHR_TIMER_PERIODIC)->run();
timers_db.get(PHR_TIMER_PERIODIC)->run();
}
if (grant.rnti_type == SRSLTE_RNTI_USER && ra_procedure.is_contention_resolution()) {
ra_procedure.pdcch_to_crnti(true);

20
srsue/src/mac/mux.cc
View File

@ -37,7 +37,7 @@
namespace srsue {
mux::mux() : pdu_msg(MAX_NOF_SUBHEADERS)
mux::mux(uint8_t nof_harq_proc_) : pdu_msg(MAX_NOF_SUBHEADERS), pid_has_bsr(nof_harq_proc_), nof_harq_proc(nof_harq_proc_)
{
pthread_mutex_init(&mutex, NULL);
@ -51,7 +51,7 @@ mux::mux() : pdu_msg(MAX_NOF_SUBHEADERS)
msg3_flush();
}
void mux::init(rlc_interface_mac *rlc_, srslte::log *log_h_, bsr_proc *bsr_procedure_, phr_proc *phr_procedure_)
void mux::init(rlc_interface_mac *rlc_, srslte::log *log_h_, bsr_interface_mux *bsr_procedure_, phr_proc *phr_procedure_)
{
log_h = log_h_;
rlc = rlc_;
@ -141,7 +141,7 @@ srslte::sch_subh::cetype bsr_format_convert(bsr_proc::bsr_format_t format) {
void mux::pusch_retx(uint32_t tx_tti, uint32_t pid)
{
if (pid_has_bsr[pid%MAX_HARQ_PROC]) {
if (pid_has_bsr[pid%nof_harq_proc]) {
bsr_procedure->set_tx_tti(tx_tti);
}
}
@ -189,13 +189,17 @@ uint8_t* mux::pdu_get(uint8_t *payload, uint32_t pdu_sz, uint32_t tx_tti, uint32
bsr_is_inserted = true;
}
}
// MAC control element for PHR
float phr_value;
if (phr_procedure->generate_phr_on_ul_grant(&phr_value)) {
if (pdu_msg.new_subh()) {
pdu_msg.get()->set_phr(phr_value);
if (phr_procedure) {
float phr_value;
if (phr_procedure->generate_phr_on_ul_grant(&phr_value)) {
if (pdu_msg.new_subh()) {
pdu_msg.get()->set_phr(phr_value);
}
}
}
// Update buffer states for all logical channels
int sdu_space = pdu_msg.get_sdu_space();
for (uint32_t i=0;i<lch.size();i++) {
@ -252,7 +256,7 @@ uint8_t* mux::pdu_get(uint8_t *payload, uint32_t pdu_sz, uint32_t tx_tti, uint32
/* Generate MAC PDU and save to buffer */
uint8_t *ret = pdu_msg.write_packet(log_h);
pid_has_bsr[pid%MAX_HARQ_PROC] = bsr_is_inserted;
pid_has_bsr[pid%nof_harq_proc] = bsr_is_inserted;
if (bsr_is_inserted) {
bsr_procedure->set_tx_tti(tx_tti);
}

42
srsue/src/mac/proc_bsr.cc
View File

@ -57,10 +57,10 @@ void bsr_proc::init(rlc_interface_mac *rlc_, srslte::log* log_h_, mac_interface_
void bsr_proc::reset()
{
timers_db->get(mac::BSR_TIMER_PERIODIC)->stop();
timers_db->get(mac::BSR_TIMER_PERIODIC)->reset();
timers_db->get(mac::BSR_TIMER_RETX)->stop();
timers_db->get(mac::BSR_TIMER_RETX)->reset();
timers_db->get(BSR_TIMER_PERIODIC)->stop();
timers_db->get(BSR_TIMER_PERIODIC)->reset();
timers_db->get(BSR_TIMER_RETX)->stop();
timers_db->get(BSR_TIMER_RETX)->reset();
reset_sr = false;
sr_is_sent = false;
@ -78,14 +78,14 @@ void bsr_proc::reset()
/* Process Periodic BSR */
void bsr_proc::timer_expired(uint32_t timer_id) {
switch(timer_id) {
case mac::BSR_TIMER_PERIODIC:
case BSR_TIMER_PERIODIC:
if (triggered_bsr_type == NONE) {
// Check condition 4 in Sec 5.4.5
triggered_bsr_type = PERIODIC;
Debug("BSR: Triggering Periodic BSR\n");
}
break;
case mac::BSR_TIMER_RETX:
case BSR_TIMER_RETX:
// Enable reTx of SR only if periodic timer is not infinity
int periodic = liblte_rrc_periodic_bsr_timer_num[mac_cfg->main.ulsch_cnfg.periodic_bsr_timer];
if (periodic >= 0) {
@ -222,17 +222,17 @@ void bsr_proc::step(uint32_t tti)
}
int periodic = liblte_rrc_periodic_bsr_timer_num[mac_cfg->main.ulsch_cnfg.periodic_bsr_timer];
if (periodic > 0 && (uint32_t)periodic != timers_db->get(mac::BSR_TIMER_PERIODIC)->get_timeout())
if (periodic > 0 && (uint32_t)periodic != timers_db->get(BSR_TIMER_PERIODIC)->get_timeout())
{
timers_db->get(mac::BSR_TIMER_PERIODIC)->set(this, periodic);
timers_db->get(mac::BSR_TIMER_PERIODIC)->run();
timers_db->get(BSR_TIMER_PERIODIC)->set(this, periodic);
timers_db->get(BSR_TIMER_PERIODIC)->run();
Info("BSR: Configured timer periodic %d ms\n", periodic);
}
int retx = liblte_rrc_retransmission_bsr_timer_num[mac_cfg->main.ulsch_cnfg.retx_bsr_timer];
if (retx > 0 && (uint32_t)retx != timers_db->get(mac::BSR_TIMER_RETX)->get_timeout())
if (retx > 0 && (uint32_t)retx != timers_db->get(BSR_TIMER_RETX)->get_timeout())
{
timers_db->get(mac::BSR_TIMER_RETX)->set(this, retx);
timers_db->get(mac::BSR_TIMER_RETX)->run();
timers_db->get(BSR_TIMER_RETX)->set(this, retx);
timers_db->get(BSR_TIMER_RETX)->run();
Info("BSR: Configured timer reTX %d ms\n", retx);
}
@ -309,18 +309,18 @@ bool bsr_proc::need_to_send_bsr_on_ul_grant(uint32_t grant_size, bsr_t *bsr)
grant_size, total_data, bsr_sz);
ret = true;
}
if (timers_db->get(mac::BSR_TIMER_PERIODIC)->get_timeout() && bsr->format != TRUNC_BSR) {
timers_db->get(mac::BSR_TIMER_PERIODIC)->reset();
timers_db->get(mac::BSR_TIMER_PERIODIC)->run();
if (timers_db->get(BSR_TIMER_PERIODIC)->get_timeout() && bsr->format != TRUNC_BSR) {
timers_db->get(BSR_TIMER_PERIODIC)->reset();
timers_db->get(BSR_TIMER_PERIODIC)->run();
}
}
// Cancel all triggered BSR and SR
triggered_bsr_type = NONE;
reset_sr = true;
// Restart or Start ReTX timer
if (timers_db->get(mac::BSR_TIMER_RETX)->get_timeout()) {
timers_db->get(mac::BSR_TIMER_RETX)->reset();
timers_db->get(mac::BSR_TIMER_RETX)->run();
if (timers_db->get(BSR_TIMER_RETX)->get_timeout()) {
timers_db->get(BSR_TIMER_RETX)->reset();
timers_db->get(BSR_TIMER_RETX)->run();
}
return ret;
}
@ -340,9 +340,9 @@ bool bsr_proc::generate_padding_bsr(uint32_t nof_padding_bytes, bsr_t *bsr)
bsr_type_tostring(triggered_bsr_type), bsr_format_tostring(bsr->format),
bsr->buff_size[0], bsr->buff_size[1], bsr->buff_size[2], bsr->buff_size[3]);
if (timers_db->get(mac::BSR_TIMER_PERIODIC)->get_timeout() && bsr->format != TRUNC_BSR) {
timers_db->get(mac::BSR_TIMER_PERIODIC)->reset();
timers_db->get(mac::BSR_TIMER_PERIODIC)->run();
if (timers_db->get(BSR_TIMER_PERIODIC)->get_timeout() && bsr->format != TRUNC_BSR) {
timers_db->get(BSR_TIMER_PERIODIC)->reset();
timers_db->get(BSR_TIMER_PERIODIC)->run();
}
}

26
srsue/src/mac/proc_phr.cc
View File

@ -76,13 +76,13 @@ bool phr_proc::pathloss_changed() {
/* Trigger PHR when timers exire */
void phr_proc::timer_expired(uint32_t timer_id) {
switch(timer_id) {
case mac::PHR_TIMER_PERIODIC:
timers_db->get(mac::PHR_TIMER_PERIODIC)->reset();
timers_db->get(mac::PHR_TIMER_PERIODIC)->run();
case PHR_TIMER_PERIODIC:
timers_db->get(PHR_TIMER_PERIODIC)->reset();
timers_db->get(PHR_TIMER_PERIODIC)->run();
Debug("PHR: Triggered by timer periodic (timer expired).\n");
phr_is_triggered = true;
break;
case mac::PHR_TIMER_PROHIBIT:
case PHR_TIMER_PROHIBIT:
int pathloss_db = liblte_rrc_dl_pathloss_change_num[mac_cfg->main.phr_cnfg.dl_pathloss_change];
if (pathloss_changed()) {
Info("PHR: Triggered by pathloss difference. cur_pathloss_db=%f (timer expired)\n", last_pathloss_db);
@ -105,8 +105,8 @@ void phr_proc::step(uint32_t tti)
if (timer_periodic != cfg_timer_periodic && cfg_timer_periodic > 0)
{
timer_periodic = cfg_timer_periodic;
timers_db->get(mac::PHR_TIMER_PERIODIC)->set(this, timer_periodic);
timers_db->get(mac::PHR_TIMER_PERIODIC)->run();
timers_db->get(PHR_TIMER_PERIODIC)->set(this, timer_periodic);
timers_db->get(PHR_TIMER_PERIODIC)->run();
phr_is_triggered = true;
Info("PHR: Configured timer periodic %d ms\n", timer_periodic);
}
@ -118,12 +118,12 @@ void phr_proc::step(uint32_t tti)
if (timer_prohibit != cfg_timer_prohibit && cfg_timer_prohibit > 0)
{
timer_prohibit = cfg_timer_prohibit;
timers_db->get(mac::PHR_TIMER_PROHIBIT)->set(this, timer_prohibit);
timers_db->get(mac::PHR_TIMER_PROHIBIT)->run();
timers_db->get(PHR_TIMER_PROHIBIT)->set(this, timer_prohibit);
timers_db->get(PHR_TIMER_PROHIBIT)->run();
Info("PHR: Configured timer prohibit %d ms\n", timer_prohibit);
phr_is_triggered = true;
}
if (pathloss_changed() && timers_db->get(mac::PHR_TIMER_PROHIBIT)->is_expired())
if (pathloss_changed() && timers_db->get(PHR_TIMER_PROHIBIT)->is_expired())
{
Info("PHR: Triggered by pathloss difference. cur_pathloss_db=%f\n", last_pathloss_db);
phr_is_triggered = true;
@ -140,10 +140,10 @@ bool phr_proc::generate_phr_on_ul_grant(float *phr)
Debug("PHR: Generating PHR=%f\n", phr?*phr:0.0);
timers_db->get(mac::PHR_TIMER_PERIODIC)->reset();
timers_db->get(mac::PHR_TIMER_PROHIBIT)->reset();
timers_db->get(mac::PHR_TIMER_PERIODIC)->run();
timers_db->get(mac::PHR_TIMER_PROHIBIT)->run();
timers_db->get(PHR_TIMER_PERIODIC)->reset();
timers_db->get(PHR_TIMER_PROHIBIT)->reset();
timers_db->get(PHR_TIMER_PERIODIC)->run();
timers_db->get(PHR_TIMER_PROHIBIT)->run();
phr_is_triggered = false;

20
srsue/src/mac/proc_ra.cc
View File

@ -115,7 +115,7 @@ void ra_proc::read_params() {
delta_preamble_db = delta_preamble_db_table[configIndex%5];
if (contentionResolutionTimer > 0) {
timers_db->get(mac::CONTENTION_TIMER)->set(this, contentionResolutionTimer);
timers_db->get(CONTENTION_TIMER)->set(this, contentionResolutionTimer);
}
}
@ -165,14 +165,14 @@ void ra_proc::process_timeadv_cmd(uint32_t ta) {
if (preambleIndex == 0) {
// Preamble not selected by UE MAC
phy_h->set_timeadv_rar(ta);
timers_db->get(mac::TIME_ALIGNMENT)->reset();
timers_db->get(mac::TIME_ALIGNMENT)->run();
timers_db->get(TIME_ALIGNMENT)->reset();
timers_db->get(TIME_ALIGNMENT)->run();
Debug("Applying RAR TA CMD %d\n", ta);
} else {
// Preamble selected by UE MAC
if (!timers_db->get(mac::TIME_ALIGNMENT)->is_running()) {
if (!timers_db->get(TIME_ALIGNMENT)->is_running()) {
phy_h->set_timeadv_rar(ta);
timers_db->get(mac::TIME_ALIGNMENT)->run();
timers_db->get(TIME_ALIGNMENT)->run();
Debug("Applying RAR TA CMD %d\n", ta);
} else {
// Ignore TA CMD
@ -355,8 +355,8 @@ void ra_proc::tb_decoded_ok() {
state = CONTENTION_RESOLUTION;
// Start contention resolution timer
timers_db->get(mac::CONTENTION_TIMER)->reset();
timers_db->get(mac::CONTENTION_TIMER)->run();
timers_db->get(CONTENTION_TIMER)->reset();
timers_db->get(CONTENTION_TIMER)->run();
}
} else {
rDebug("Found RAR for preamble %d\n", rar_pdu_msg.get()->get_rapid());
@ -417,7 +417,7 @@ bool ra_proc::contention_resolution_id_received(uint64_t rx_contention_id) {
rDebug("MAC PDU Contains Contention Resolution ID CE\n");
// MAC PDU successfully decoded and contains MAC CE contention Id
timers_db->get(mac::CONTENTION_TIMER)->stop();
timers_db->get(CONTENTION_TIMER)->stop();
if (transmitted_contention_id == rx_contention_id)
{
@ -453,7 +453,7 @@ void ra_proc::step_contention_resolution() {
(started_by_pdcch && pdcch_to_crnti_received != PDCCH_CRNTI_NOT_RECEIVED))
{
rDebug("PDCCH for C-RNTI received\n");
timers_db->get(mac::CONTENTION_TIMER)->stop();
timers_db->get(CONTENTION_TIMER)->stop();
rntis->temp_rnti = 0;
state = COMPLETION;
}
@ -565,7 +565,7 @@ void ra_proc::pdcch_to_crnti(bool contains_uplink_grant) {
void ra_proc::harq_retx()
{
timers_db->get(mac::CONTENTION_TIMER)->reset();
timers_db->get(CONTENTION_TIMER)->reset();
}
}

394
srsue/src/mac/ul_harq.cc
View File

@ -1,394 +0,0 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsUE library.
*
* srsUE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsUE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#define Error(fmt, ...) log_h->error_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Warning(fmt, ...) log_h->warning_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Info(fmt, ...) log_h->info_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#define Debug(fmt, ...) log_h->debug_line(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
#include "srslte/common/log.h"
#include "mac/mac.h"
#include "mac/ul_harq.h"
namespace srsue {
/***********************************************************
*
* HARQ ENTITY
*
*********************************************************/
bool ul_harq_entity::init(srslte::log *log_h_,
mac_interface_rrc::ue_rnti_t *rntis_,
mac_interface_rrc::mac_cfg_t *mac_cfg_,
srslte::timers *timers_db_,
mux *mux_unit_) {
log_h = log_h_;
mux_unit = mux_unit_;
mac_cfg = mac_cfg_;
rntis = rntis_;
timers_db = timers_db_;
for (uint32_t i=0;i<NOF_HARQ_PROC;i++) {
if (!proc[i].init(i, this)) {
return false;
}
}
return true;
}
uint32_t ul_harq_entity::pidof(uint32_t tti) {
return (uint32_t) tti%NOF_HARQ_PROC;
}
void ul_harq_entity::start_pcap(srslte::mac_pcap* pcap_)
{
pcap = pcap_;
}
void ul_harq_entity::reset() {
for (uint32_t i=0;i<NOF_HARQ_PROC;i++) {
proc[i].reset();
}
ul_sps_assig.clear();
}
void ul_harq_entity::reset_ndi() {
for (uint32_t i=0;i<NOF_HARQ_PROC;i++) {
proc[i].reset_ndi();
}
}
int ul_harq_entity::get_current_tbs(uint32_t tti) {
int tti_harq = (int) tti-4;
if (tti_harq < 0) {
tti_harq += 10240;
}
uint32_t pid_harq = pidof(tti_harq);
return proc[pid_harq].get_current_tbs();
}
void ul_harq_entity::set_ack(uint32_t tti, bool ack) {
int tti_harq = (int) tti - 4;
if (tti_harq < 0) {
tti_harq += 10240;
}
uint32_t pid_harq = pidof(tti_harq);
if (proc[pid_harq].has_grant() && (proc[pid_harq].last_tx_tti() <= (uint32_t)tti_harq)) {
proc[pid_harq].set_harq_feedback(ack);
}
}
void ul_harq_entity::harq_recv(uint32_t tti, bool ack, mac_interface_phy::tb_action_ul_t* action)
{
set_ack(tti, ack);
run_tti(tti, NULL, action);
}
// Implements Section 5.4.1
void ul_harq_entity::new_grant_ul(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_ul_t* action)
{
if (grant.rnti_type == SRSLTE_RNTI_USER ||
grant.rnti_type == SRSLTE_RNTI_TEMP ||
grant.rnti_type == SRSLTE_RNTI_RAR)
{
if (grant.rnti_type == SRSLTE_RNTI_USER && proc[pidof(grant.tti)].is_sps()) {
grant.ndi = true;
}
run_tti(grant.tti, &grant, action);
} else if (grant.rnti_type == SRSLTE_RNTI_SPS) {
if (grant.ndi) {
grant.ndi = proc[pidof(grant.tti)].get_ndi();
run_tti(grant.tti, &grant, action);
} else {
Info("Not implemented\n");
}
}
}
void ul_harq_entity::new_grant_ul_ack(mac_interface_phy::mac_grant_t grant, bool ack, mac_interface_phy::tb_action_ul_t* action)
{
set_ack(grant.tti, ack);
new_grant_ul(grant, action);
}
// Implements Section 5.4.2.1
// Called with UL grant
void ul_harq_entity::run_tti(uint32_t tti, mac_interface_phy::mac_grant_t *grant, mac_interface_phy::tb_action_ul_t* action)
{
uint32_t tti_tx = (tti+4)%10240;
proc[pidof(tti_tx)].run_tti(tti_tx, grant, action);
}
float ul_harq_entity::get_average_retx()
{
return average_retx;
}
/***********************************************************
*
* HARQ PROCESS
*
*********************************************************/
static int rv_of_irv[4] = {0, 2, 3, 1};
static int irv_of_rv[4] = {0, 3, 1, 2};
ul_harq_entity::ul_harq_process::ul_harq_process() {
current_tx_nb = 0;
current_irv = 0;
is_initiated = false;
is_grant_configured = false;
tti_last_tx = 0;
bzero(&cur_grant, sizeof(mac_interface_phy::mac_grant_t));
}
void ul_harq_entity::ul_harq_process::reset() {
current_tx_nb = 0;
current_irv = 0;
tti_last_tx = 0;
is_grant_configured = false;
bzero(&cur_grant, sizeof(mac_interface_phy::mac_grant_t));
}
bool ul_harq_entity::ul_harq_process::has_grant() {
return is_grant_configured;
}
void ul_harq_entity::ul_harq_process::reset_ndi() {
ndi = false;
}
bool ul_harq_entity::ul_harq_process::get_ndi()
{
return ndi;
}
uint32_t ul_harq_entity::ul_harq_process::get_rv()
{
return rv_of_irv[current_irv%4];
}
void ul_harq_entity::ul_harq_process::set_harq_feedback(bool ack) {
harq_feedback = ack;
// UL packet successfully delivered
if (ack) {
Info("UL %d: HARQ = ACK for UL transmission. Discarting TB.\n", pid);
reset();
} else {
Info("UL %d: HARQ = NACK for UL transmission\n", pid);
}
}
bool ul_harq_entity::ul_harq_process::init(uint32_t pid_, ul_harq_entity* parent) {
if (srslte_softbuffer_tx_init(&softbuffer, SRSLTE_MAX_PRB)) {
fprintf(stderr, "Error initiating soft buffer\n");
return false;
} else {
is_initiated = true;
harq_entity = parent;
log_h = harq_entity->log_h;
pid = pid_;
payload_buffer = (uint8_t*) srslte_vec_malloc(payload_buffer_len*sizeof(uint8_t));
if (!payload_buffer) {
Error("Allocating memory\n");
return false;
}
pdu_ptr = payload_buffer;
return true;
}
}
void ul_harq_entity::ul_harq_process::run_tti(uint32_t tti_tx, mac_interface_phy::mac_grant_t* grant, mac_interface_phy::tb_action_ul_t* action)
{
uint32_t max_retx;
if (is_msg3) {
max_retx = harq_entity->mac_cfg->rach.max_harq_msg3_tx;
} else {
max_retx = liblte_rrc_max_harq_tx_num[harq_entity->mac_cfg->main.ulsch_cnfg.max_harq_tx];
}
// Receive and route HARQ feedbacks
if (grant) {
if ((!(grant->rnti_type == SRSLTE_RNTI_TEMP) && grant->ndi != get_ndi()) ||
(grant->rnti_type == SRSLTE_RNTI_USER && !has_grant()) ||
grant->is_from_rar)
{
// New transmission
// Uplink grant in a RAR
if (grant->is_from_rar) {
Debug("Getting Msg3 buffer payload, grant size=%d bytes\n", grant->n_bytes);
pdu_ptr = harq_entity->mux_unit->msg3_get(payload_buffer, grant->n_bytes);
if (pdu_ptr) {
generate_new_tx(tti_tx, true, grant, action);
} else {
Warning("UL RAR grant available but no Msg3 on buffer\n");
}
// Normal UL grant
} else {
// Request a MAC PDU from the Multiplexing & Assemble Unit
pdu_ptr = harq_entity->mux_unit->pdu_get(payload_buffer, grant->n_bytes, tti_tx, pid);
if (pdu_ptr) {
generate_new_tx(tti_tx, false, grant, action);
} else {
Warning("Uplink grant but no MAC PDU in Multiplex Unit buffer\n");
}
}
} else {
// Adaptive Re-TX
if (current_tx_nb >= max_retx) {
Info("UL %d: Maximum number of ReTX reached (%d). Discarting TB.\n", pid, max_retx);
reset();
action->expect_ack = false;
} else {
generate_retx(tti_tx, grant, action);
}
}
} else if (has_grant()) {
// Non-Adaptive Re-Tx
if (current_tx_nb >= max_retx) {
Info("UL %d: Maximum number of ReTX reached (%d). Discarting TB.\n", pid, max_retx);
reset();
action->expect_ack = false;
} else {
generate_retx(tti_tx, action);
}
}
if (harq_entity->pcap && grant) {
if (grant->is_from_rar) {
grant->rnti = harq_entity->rntis->temp_rnti;
}
harq_entity->pcap->write_ul_crnti(pdu_ptr, grant->n_bytes, grant->rnti, get_nof_retx(), tti_tx);
}
}
int ul_harq_entity::ul_harq_process::get_current_tbs()
{
return cur_grant.n_bytes*8;
}
void ul_harq_entity::ul_harq_process::generate_retx(uint32_t tti_tx, mac_interface_phy::tb_action_ul_t *action)
{
generate_retx(tti_tx, NULL, action);
}
// Retransmission with or w/o grant (Section 5.4.2.2)
void ul_harq_entity::ul_harq_process::generate_retx(uint32_t tti_tx, mac_interface_phy::mac_grant_t *grant,
mac_interface_phy::tb_action_ul_t *action)
{
if (grant) {
// HARQ entity requests an adaptive transmission
if (grant->rv) {
current_irv = irv_of_rv[grant->rv%4];
}
memcpy(&cur_grant, grant, sizeof(mac_interface_phy::mac_grant_t));
harq_feedback = false;
Info("UL %d: Adaptive retx=%d, RV=%d, TBS=%d\n",
pid, current_tx_nb, get_rv(), grant->n_bytes);
generate_tx(tti_tx, action);
} else {
Info("UL %d: Non-Adaptive retx=%d, RV=%d, TBS=%d\n",
pid, current_tx_nb, get_rv(), cur_grant.n_bytes);
// HARQ entity requests a non-adaptive transmission
if (!harq_feedback) {
generate_tx(tti_tx, action);
}
}
// On every Msg3 retransmission, restart mac-ContentionResolutionTimer as defined in Section 5.1.5
if (is_msg3) {
harq_entity->timers_db->get(mac::CONTENTION_TIMER)->reset();
}
harq_entity->mux_unit->pusch_retx(tti_tx, pid);
}
// New transmission (Section 5.4.2.2)
void ul_harq_entity::ul_harq_process::generate_new_tx(uint32_t tti_tx, bool is_msg3_,
mac_interface_phy::mac_grant_t *grant,
mac_interface_phy::tb_action_ul_t *action)
{
if (grant) {
// Compute average number of retransmissions per packet considering previous packet
harq_entity->average_retx = SRSLTE_VEC_CMA((float) current_tx_nb, harq_entity->average_retx, harq_entity->nof_pkts++);
memcpy(&cur_grant, grant, sizeof(mac_interface_phy::mac_grant_t));
harq_feedback = false;
is_grant_configured = true;
current_tx_nb = 0;
current_irv = 0;
is_msg3 = is_msg3_;
Info("UL %d: New TX%s, RV=%d, TBS=%d, RNTI=%d\n",
pid, is_msg3?" for Msg3":"", get_rv(), cur_grant.n_bytes, cur_grant.rnti);
generate_tx(tti_tx, action);
}
}
// Transmission of pending frame (Section 5.4.2.2)
void ul_harq_entity::ul_harq_process::generate_tx(uint32_t tti_tx, mac_interface_phy::tb_action_ul_t *action)
{
action->current_tx_nb = current_tx_nb;
current_tx_nb++;
action->expect_ack = true;
action->rnti = is_msg3?harq_entity->rntis->temp_rnti:cur_grant.rnti;
action->rv = cur_grant.rv>0?cur_grant.rv:get_rv();
action->softbuffer = &softbuffer;
action->tx_enabled = true;
action->payload_ptr = pdu_ptr;
memcpy(&action->phy_grant, &cur_grant.phy_grant, sizeof(srslte_phy_grant_t));
current_irv = (current_irv+1)%4;
tti_last_tx = tti_tx;
}
bool ul_harq_entity::ul_harq_process::is_sps()
{
return false;
}
uint32_t ul_harq_entity::ul_harq_process::last_tx_tti()
{
return tti_last_tx;
}
uint32_t ul_harq_entity::ul_harq_process::get_nof_retx()
{
return current_tx_nb;
}
}

22
srsue/src/main.cc
View File

@ -127,7 +127,7 @@ void parse_args(all_args_t *args, int argc, char *argv[]) {
"index of the core used by the sync thread")
("expert.ue_category",
bpo::value<int>(&args->expert.ue_cateogry)->default_value(4),
bpo::value<string>(&args->expert.ue_cateogry)->default_value("4"),
"UE Category (1 to 5)")
("expert.metrics_period_secs",
@ -343,18 +343,26 @@ void *input_loop(void *m) {
return NULL;
}
int main(int argc, char *argv[]) {
int main(int argc, char *argv[])
{
signal(SIGINT, sig_int_handler);
all_args_t args;
metrics_stdout metrics;
ue *ue = ue::get_instance();
cout << "--- Software Radio Systems LTE UE ---" << endl << endl;
parse_args(&args, argc, argv);
srsue_instance_type_t type = LTE;
ue_base *ue = ue_base::get_instance(type);
if (!ue) {
cout << "Error creating UE instance." << endl << endl;
exit(1);
}
cout << "--- Software Radio Systems " << srsue_instance_type_text[type] << " UE ---" << endl << endl;
if (!ue->init(&args)) {
exit(1);
}
metrics_stdout metrics;
metrics.init(ue, args.expert.metrics_period_secs);
pthread_t input;

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