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Handle packet access reject during packet resource request 

When Packet resource request is received, PCU will generate the
packet access reject if no resources are present. The encoding is done
based on section 7.1.3.2.1 and 8.1.2.5 of 44.060 version 7.27.0 Release 7.
This patch also includes the test case to validate the generated
packet access reject message.

This patch is integration tested on Osmo-trx setup with Ettus B210 board
and LG F70 MS with some simulation code changes in Osmo-pcu.

Change-Id: I05ff25124b58905586caa0c0c37023d69724f121
This commit is contained in:
aravind sirsikar 2017-01-24 12:36:08 +05:30 committed by Harald Welte
parent 1d8744ce96
commit e9a138e111
7 changed files with 398 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/bts.cpp
View File

@ -1356,8 +1356,12 @@ void gprs_rlcmac_pdch::rcv_resource_request(Packet_Resource_Request_t *request,
egprs_ms_class);
ul_tbf = tbf_alloc_ul(bts_data(), trx_no(), ms_class,
egprs_ms_class, tlli, ta, ms);
if (!ul_tbf)
if (!ul_tbf) {
handle_tbf_reject(bts_data(), ms, tlli,
trx_no(), ts_no);
return;
}
/* set control ts to current MS's TS, until assignment complete */
LOGP(DRLCMAC, LOGL_DEBUG, "Change control TS to %d until assinment is complete.\n", ts_no);

11
src/gprs_rlcmac_sched.cpp
View File

@ -56,7 +56,9 @@ static uint32_t sched_poll(BTS *bts,
*ul_ack_tbf = ul_tbf;
if (ul_tbf->dl_ass_state == GPRS_RLCMAC_DL_ASS_SEND_ASS)
*dl_ass_tbf = ul_tbf;
if (ul_tbf->ul_ass_state == GPRS_RLCMAC_UL_ASS_SEND_ASS)
if (ul_tbf->ul_ass_state == GPRS_RLCMAC_UL_ASS_SEND_ASS
|| ul_tbf->ul_ass_state ==
GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ)
*ul_ass_tbf = ul_tbf;
#warning "Is this supposed to be fair? The last TBF for each wins? Maybe use llist_add_tail and skip once we have all states?"
}
@ -136,8 +138,11 @@ static struct msgb *sched_select_ctrl_msg(
* because they may kill the TBF when the CONTROL ACK is
* received, thus preventing the others from being processed.
*/
if (tbf == ul_ass_tbf && tbf->direction == GPRS_RLCMAC_DL_TBF)
if (tbf == ul_ass_tbf && tbf->ul_ass_state ==
GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ)
msg = ul_ass_tbf->create_packet_access_reject();
else if (tbf == ul_ass_tbf && tbf->direction ==
GPRS_RLCMAC_DL_TBF)
if (tbf->ul_ass_state ==
GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ)
msg = ul_ass_tbf->create_packet_access_reject();

40
src/tbf.cpp
View File

@ -1174,6 +1174,10 @@ struct msgb *gprs_rlcmac_tbf::create_packet_access_reject()
bitvec_free(packet_access_rej);
ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE;
/* Start Tmr only if it is UL TBF */
if (direction == GPRS_RLCMAC_UL_TBF)
tbf_timer_start(this, 0, Treject_pacch);
return msg;
}
@ -1403,3 +1407,39 @@ bool gprs_rlcmac_tbf::is_control_ts(uint8_t ts) const
{
return ts == control_ts;
}
struct gprs_rlcmac_ul_tbf *handle_tbf_reject(struct gprs_rlcmac_bts *bts,
GprsMs *ms, uint32_t tlli, uint8_t trx_no, uint8_t ts)
{
struct gprs_rlcmac_ul_tbf *ul_tbf = NULL;
struct gprs_rlcmac_trx *trx = &bts->trx[trx_no];
ul_tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf);
if (!ul_tbf)
return ul_tbf;
talloc_set_destructor(ul_tbf, ul_tbf_dtor);
new (ul_tbf) gprs_rlcmac_ul_tbf(bts->bts);
if (!ms)
ms = bts->bts->ms_alloc(0, 0);
ms->set_tlli(tlli);
llist_add(&ul_tbf->list(), &bts->bts->ul_tbfs());
ul_tbf->bts->tbf_ul_created();
ul_tbf->set_state(GPRS_RLCMAC_ASSIGN);
ul_tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH);
ul_tbf->set_ms(ms);
ul_tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF);
ul_tbf->ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ;
ul_tbf->control_ts = ts;
ul_tbf->trx = trx;
ul_tbf->m_ctrs = rate_ctr_group_alloc(ul_tbf, &tbf_ctrg_desc, 0);
ul_tbf->m_ul_egprs_ctrs = rate_ctr_group_alloc(ul_tbf,
&tbf_ul_egprs_ctrg_desc, 0);
ul_tbf->m_ul_gprs_ctrs = rate_ctr_group_alloc(ul_tbf,
&tbf_ul_gprs_ctrg_desc, 0);
return ul_tbf;
}

4
src/tbf.h
View File

@ -43,6 +43,7 @@ class GprsMs;
#define Tassign_agch 0,200000 /* waiting after IMM.ASS confirm */
#define Tassign_pacch 2,0 /* timeout for pacch assigment */
#define Treject_pacch 0,2000 /* timeout for tbf reject for PRR*/
enum gprs_rlcmac_tbf_state {
GPRS_RLCMAC_NULL = 0, /* new created TBF */
@ -316,6 +317,9 @@ struct gprs_rlcmac_dl_tbf *tbf_alloc_dl_tbf(struct gprs_rlcmac_bts *bts,
void tbf_free(struct gprs_rlcmac_tbf *tbf);
struct gprs_rlcmac_ul_tbf *handle_tbf_reject(struct gprs_rlcmac_bts *bts,
GprsMs *ms, uint32_t tlli, uint8_t trx_no, uint8_t ts_no);
int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf);
void tbf_timer_start(struct gprs_rlcmac_tbf *tbf, unsigned int T,

110
tests/tbf/TbfTest.cpp
View File

@ -3242,6 +3242,114 @@ const struct log_info debug_log_info = {
ARRAY_SIZE(default_categories),
};
static void test_packet_access_rej_prr_no_other_tbfs()
{
BTS the_bts;
uint32_t fn = 2654218;
int ts_no = 7;
uint8_t trx_no = 0;
uint32_t tlli = 0xffeeddcc;
struct gprs_rlcmac_ul_tbf *ul_tbf = NULL;
printf("=== start %s ===\n", __func__);
setup_bts(&the_bts, ts_no, 4);
int rc = 0;
ul_tbf = handle_tbf_reject(the_bts.bts_data(), NULL, tlli,
trx_no, ts_no);
OSMO_ASSERT(ul_tbf != 0);
/* trigger packet access reject */
uint8_t bn = fn2bn(fn);
rc = gprs_rlcmac_rcv_rts_block(the_bts.bts_data(),
trx_no, ts_no, fn, bn);
OSMO_ASSERT(rc == 0);
ul_tbf->handle_timeout();
printf("=== end %s ===\n", __func__);
}
static void test_packet_access_rej_prr()
{
BTS the_bts;
uint32_t fn = 2654218;
uint16_t qta = 31;
int ts_no = 7;
uint8_t trx_no = 0;
RlcMacUplink_t ulreq = {0};
Packet_Resource_Request_t *presreq = NULL;
uint8_t ms_class = 11;
uint8_t egprs_ms_class = 11;
uint32_t rach_fn = fn - 51;
uint32_t sba_fn = fn + 52;
uint32_t tlli = 0xffeeddcc;
MS_Radio_Access_capability_t *pmsradiocap = NULL;
Multislot_capability_t *pmultislotcap = NULL;
printf("=== start %s ===\n", __func__);
setup_bts(&the_bts, ts_no, 4);
int rc = 0;
/*
* Trigger rach till resources(USF) exhaust
*/
rc = the_bts.rcv_rach(0x78, rach_fn, qta, 0,
GSM_L1_BURST_TYPE_ACCESS_0);
rc = the_bts.rcv_rach(0x79, rach_fn, qta, 0,
GSM_L1_BURST_TYPE_ACCESS_0);
rc = the_bts.rcv_rach(0x7a, rach_fn, qta, 0,
GSM_L1_BURST_TYPE_ACCESS_0);
rc = the_bts.rcv_rach(0x7b, rach_fn, qta, 0,
GSM_L1_BURST_TYPE_ACCESS_0);
rc = the_bts.rcv_rach(0x7c, rach_fn, qta, 0,
GSM_L1_BURST_TYPE_ACCESS_0);
rc = the_bts.rcv_rach(0x7d, rach_fn, qta, 0,
GSM_L1_BURST_TYPE_ACCESS_0);
rc = the_bts.rcv_rach(0x7e, rach_fn, qta, 0,
GSM_L1_BURST_TYPE_ACCESS_0);
/* fake a resource request */
ulreq.u.MESSAGE_TYPE = MT_PACKET_RESOURCE_REQUEST;
presreq = &ulreq.u.Packet_Resource_Request;
presreq->PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
presreq->ID.UnionType = 1; /* != 0 */
presreq->ID.u.TLLI = tlli;
presreq->Exist_MS_Radio_Access_capability = 1;
pmsradiocap = &presreq->MS_Radio_Access_capability;
pmsradiocap->Count_MS_RA_capability_value = 1;
pmsradiocap->MS_RA_capability_value[0].u.Content.
Exist_Multislot_capability = 1;
pmultislotcap = &pmsradiocap->MS_RA_capability_value[0].
u.Content.Multislot_capability;
pmultislotcap->Exist_GPRS_multislot_class = 1;
pmultislotcap->GPRS_multislot_class = ms_class;
if (egprs_ms_class) {
pmultislotcap->Exist_EGPRS_multislot_class = 1;
pmultislotcap->EGPRS_multislot_class = egprs_ms_class;
}
send_ul_mac_block(&the_bts, trx_no, ts_no, &ulreq, sba_fn);
/* trigger packet access reject */
uint8_t bn = fn2bn(fn);
rc = gprs_rlcmac_rcv_rts_block(the_bts.bts_data(),
trx_no, ts_no, fn, bn);
OSMO_ASSERT(rc == 0);
printf("=== end %s ===\n", __func__);
}
void test_packet_access_rej_epdan()
{
BTS the_bts;
@ -3310,6 +3418,8 @@ int main(int argc, char **argv)
test_immediate_assign_rej();
test_tbf_egprs_two_phase_puan();
test_packet_access_rej_epdan();
test_packet_access_rej_prr();
test_packet_access_rej_prr_no_other_tbfs();
if (getenv("TALLOC_REPORT_FULL"))
talloc_report_full(tall_pcu_ctx, stderr);

227
tests/tbf/TbfTest.err
View File

@ -8873,3 +8873,230 @@ Modifying MS object, TLLI = 0x00000000, TA 220 -> 0
TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=NULL) changes state from NULL to FLOW
The MS object cannot fully confirm an unexpected TLLI: 0xffeeddcc, partly confirmed
TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) append
MS requests UL TBF on RACH, so we provide one
ra=0x78 Fn=2654167 qta=31 is_11bit=0:
********** TBF starts here **********
Allocating UL TBF: MS_CLASS=0/0
Creating MS object, TLLI = 0x00000000
Slot Allocation (Algorithm A) for class 0
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
- Assign uplink TS=7 TFI=0 USF=0
PDCH(TS 7, TRX 0): Attaching TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=NULL), 1 TBFs, USFs = 01, TFIs = 00000001.
- Setting Control TS 7
Attaching TBF to MS object, TLLI = 0x00000000, TBF = TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=NULL)
Allocated TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=NULL): trx = 0, ul_slots = 80, dl_slots = 00
Modifying MS object, TLLI = 0x00000000, TA 220 -> 7
TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to FLOW
TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=FLOW) starting timer 3169.
TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=FLOW) [UPLINK] START
TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=FLOW) RX: [PCU <- BTS] RACH qbit-ta=31 ra=0x78, Fn=2654167 (17,25,9)
TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=FLOW) TX: START Immediate Assignment Uplink (AGCH)
- TRX=0 (0) TS=7 TA=7 TSC=0 TFI=0 USF=0
Sending data request: trx=0 ts=0 sapi=2 arfcn=0 fn=0 block=0 data=2d 06 3f 10 0f 00 00 78 8b 29 07 00 c8 00 70 0b 2b 2b 2b 2b 2b 2b 2b
MS requests UL TBF on RACH, so we provide one
ra=0x79 Fn=2654167 qta=31 is_11bit=0:
********** TBF starts here **********
Allocating UL TBF: MS_CLASS=0/0
Creating MS object, TLLI = 0x00000000
Slot Allocation (Algorithm A) for class 0
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
- Assign uplink TS=7 TFI=1 USF=1
PDCH(TS 7, TRX 0): Attaching TBF(TFI=1 TLLI=0x00000000 DIR=UL STATE=NULL), 2 TBFs, USFs = 03, TFIs = 00000003.
- Setting Control TS 7
Attaching TBF to MS object, TLLI = 0x00000000, TBF = TBF(TFI=1 TLLI=0x00000000 DIR=UL STATE=NULL)
Allocated TBF(TFI=1 TLLI=0x00000000 DIR=UL STATE=NULL): trx = 0, ul_slots = 80, dl_slots = 00
Modifying MS object, TLLI = 0x00000000, TA 220 -> 7
TBF(TFI=1 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to FLOW
TBF(TFI=1 TLLI=0x00000000 DIR=UL STATE=FLOW) starting timer 3169.
TBF(TFI=1 TLLI=0x00000000 DIR=UL STATE=FLOW) [UPLINK] START
TBF(TFI=1 TLLI=0x00000000 DIR=UL STATE=FLOW) RX: [PCU <- BTS] RACH qbit-ta=31 ra=0x79, Fn=2654167 (17,25,9)
TBF(TFI=1 TLLI=0x00000000 DIR=UL STATE=FLOW) TX: START Immediate Assignment Uplink (AGCH)
- TRX=0 (0) TS=7 TA=7 TSC=0 TFI=1 USF=1
Sending data request: trx=0 ts=0 sapi=2 arfcn=0 fn=0 block=0 data=2d 06 3f 10 0f 00 00 79 8b 29 07 00 c8 42 70 0b 2b 2b 2b 2b 2b 2b 2b
MS requests UL TBF on RACH, so we provide one
ra=0x7a Fn=2654167 qta=31 is_11bit=0:
********** TBF starts here **********
Allocating UL TBF: MS_CLASS=0/0
Creating MS object, TLLI = 0x00000000
Slot Allocation (Algorithm A) for class 0
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
- Assign uplink TS=7 TFI=2 USF=2
PDCH(TS 7, TRX 0): Attaching TBF(TFI=2 TLLI=0x00000000 DIR=UL STATE=NULL), 3 TBFs, USFs = 07, TFIs = 00000007.
- Setting Control TS 7
Attaching TBF to MS object, TLLI = 0x00000000, TBF = TBF(TFI=2 TLLI=0x00000000 DIR=UL STATE=NULL)
Allocated TBF(TFI=2 TLLI=0x00000000 DIR=UL STATE=NULL): trx = 0, ul_slots = 80, dl_slots = 00
Modifying MS object, TLLI = 0x00000000, TA 220 -> 7
TBF(TFI=2 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to FLOW
TBF(TFI=2 TLLI=0x00000000 DIR=UL STATE=FLOW) starting timer 3169.
TBF(TFI=2 TLLI=0x00000000 DIR=UL STATE=FLOW) [UPLINK] START
TBF(TFI=2 TLLI=0x00000000 DIR=UL STATE=FLOW) RX: [PCU <- BTS] RACH qbit-ta=31 ra=0x7a, Fn=2654167 (17,25,9)
TBF(TFI=2 TLLI=0x00000000 DIR=UL STATE=FLOW) TX: START Immediate Assignment Uplink (AGCH)
- TRX=0 (0) TS=7 TA=7 TSC=0 TFI=2 USF=2
Sending data request: trx=0 ts=0 sapi=2 arfcn=0 fn=0 block=0 data=2d 06 3f 10 0f 00 00 7a 8b 29 07 00 c8 84 70 0b 2b 2b 2b 2b 2b 2b 2b
MS requests UL TBF on RACH, so we provide one
ra=0x7b Fn=2654167 qta=31 is_11bit=0:
********** TBF starts here **********
Allocating UL TBF: MS_CLASS=0/0
Creating MS object, TLLI = 0x00000000
Slot Allocation (Algorithm A) for class 0
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
- Assign uplink TS=7 TFI=3 USF=3
PDCH(TS 7, TRX 0): Attaching TBF(TFI=3 TLLI=0x00000000 DIR=UL STATE=NULL), 4 TBFs, USFs = 0f, TFIs = 0000000f.
- Setting Control TS 7
Attaching TBF to MS object, TLLI = 0x00000000, TBF = TBF(TFI=3 TLLI=0x00000000 DIR=UL STATE=NULL)
Allocated TBF(TFI=3 TLLI=0x00000000 DIR=UL STATE=NULL): trx = 0, ul_slots = 80, dl_slots = 00
Modifying MS object, TLLI = 0x00000000, TA 220 -> 7
TBF(TFI=3 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to FLOW
TBF(TFI=3 TLLI=0x00000000 DIR=UL STATE=FLOW) starting timer 3169.
TBF(TFI=3 TLLI=0x00000000 DIR=UL STATE=FLOW) [UPLINK] START
TBF(TFI=3 TLLI=0x00000000 DIR=UL STATE=FLOW) RX: [PCU <- BTS] RACH qbit-ta=31 ra=0x7b, Fn=2654167 (17,25,9)
TBF(TFI=3 TLLI=0x00000000 DIR=UL STATE=FLOW) TX: START Immediate Assignment Uplink (AGCH)
- TRX=0 (0) TS=7 TA=7 TSC=0 TFI=3 USF=3
Sending data request: trx=0 ts=0 sapi=2 arfcn=0 fn=0 block=0 data=2d 06 3f 10 0f 00 00 7b 8b 29 07 00 c8 c6 70 0b 2b 2b 2b 2b 2b 2b 2b
MS requests UL TBF on RACH, so we provide one
ra=0x7c Fn=2654167 qta=31 is_11bit=0:
********** TBF starts here **********
Allocating UL TBF: MS_CLASS=0/0
Creating MS object, TLLI = 0x00000000
Slot Allocation (Algorithm A) for class 0
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
- Assign uplink TS=7 TFI=4 USF=4
PDCH(TS 7, TRX 0): Attaching TBF(TFI=4 TLLI=0x00000000 DIR=UL STATE=NULL), 5 TBFs, USFs = 1f, TFIs = 0000001f.
- Setting Control TS 7
Attaching TBF to MS object, TLLI = 0x00000000, TBF = TBF(TFI=4 TLLI=0x00000000 DIR=UL STATE=NULL)
Allocated TBF(TFI=4 TLLI=0x00000000 DIR=UL STATE=NULL): trx = 0, ul_slots = 80, dl_slots = 00
Modifying MS object, TLLI = 0x00000000, TA 220 -> 7
TBF(TFI=4 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to FLOW
TBF(TFI=4 TLLI=0x00000000 DIR=UL STATE=FLOW) starting timer 3169.
TBF(TFI=4 TLLI=0x00000000 DIR=UL STATE=FLOW) [UPLINK] START
TBF(TFI=4 TLLI=0x00000000 DIR=UL STATE=FLOW) RX: [PCU <- BTS] RACH qbit-ta=31 ra=0x7c, Fn=2654167 (17,25,9)
TBF(TFI=4 TLLI=0x00000000 DIR=UL STATE=FLOW) TX: START Immediate Assignment Uplink (AGCH)
- TRX=0 (0) TS=7 TA=7 TSC=0 TFI=4 USF=4
Sending data request: trx=0 ts=0 sapi=2 arfcn=0 fn=0 block=0 data=2d 06 3f 10 0f 00 00 7c 8b 29 07 00 c9 08 70 0b 2b 2b 2b 2b 2b 2b 2b
MS requests UL TBF on RACH, so we provide one
ra=0x7d Fn=2654167 qta=31 is_11bit=0:
********** TBF starts here **********
Allocating UL TBF: MS_CLASS=0/0
Creating MS object, TLLI = 0x00000000
Slot Allocation (Algorithm A) for class 0
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
- Assign uplink TS=7 TFI=5 USF=5
PDCH(TS 7, TRX 0): Attaching TBF(TFI=5 TLLI=0x00000000 DIR=UL STATE=NULL), 6 TBFs, USFs = 3f, TFIs = 0000003f.
- Setting Control TS 7
Attaching TBF to MS object, TLLI = 0x00000000, TBF = TBF(TFI=5 TLLI=0x00000000 DIR=UL STATE=NULL)
Allocated TBF(TFI=5 TLLI=0x00000000 DIR=UL STATE=NULL): trx = 0, ul_slots = 80, dl_slots = 00
Modifying MS object, TLLI = 0x00000000, TA 220 -> 7
TBF(TFI=5 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to FLOW
TBF(TFI=5 TLLI=0x00000000 DIR=UL STATE=FLOW) starting timer 3169.
TBF(TFI=5 TLLI=0x00000000 DIR=UL STATE=FLOW) [UPLINK] START
TBF(TFI=5 TLLI=0x00000000 DIR=UL STATE=FLOW) RX: [PCU <- BTS] RACH qbit-ta=31 ra=0x7d, Fn=2654167 (17,25,9)
TBF(TFI=5 TLLI=0x00000000 DIR=UL STATE=FLOW) TX: START Immediate Assignment Uplink (AGCH)
- TRX=0 (0) TS=7 TA=7 TSC=0 TFI=5 USF=5
Sending data request: trx=0 ts=0 sapi=2 arfcn=0 fn=0 block=0 data=2d 06 3f 10 0f 00 00 7d 8b 29 07 00 c9 4a 70 0b 2b 2b 2b 2b 2b 2b 2b
MS requests UL TBF on RACH, so we provide one
ra=0x7e Fn=2654167 qta=31 is_11bit=0:
********** TBF starts here **********
Allocating UL TBF: MS_CLASS=0/0
Creating MS object, TLLI = 0x00000000
Slot Allocation (Algorithm A) for class 0
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
- Assign uplink TS=7 TFI=6 USF=6
PDCH(TS 7, TRX 0): Attaching TBF(TFI=6 TLLI=0x00000000 DIR=UL STATE=NULL), 7 TBFs, USFs = 7f, TFIs = 0000007f.
- Setting Control TS 7
Attaching TBF to MS object, TLLI = 0x00000000, TBF = TBF(TFI=6 TLLI=0x00000000 DIR=UL STATE=NULL)
Allocated TBF(TFI=6 TLLI=0x00000000 DIR=UL STATE=NULL): trx = 0, ul_slots = 80, dl_slots = 00
Modifying MS object, TLLI = 0x00000000, TA 220 -> 7
TBF(TFI=6 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to FLOW
TBF(TFI=6 TLLI=0x00000000 DIR=UL STATE=FLOW) starting timer 3169.
TBF(TFI=6 TLLI=0x00000000 DIR=UL STATE=FLOW) [UPLINK] START
TBF(TFI=6 TLLI=0x00000000 DIR=UL STATE=FLOW) RX: [PCU <- BTS] RACH qbit-ta=31 ra=0x7e, Fn=2654167 (17,25,9)
TBF(TFI=6 TLLI=0x00000000 DIR=UL STATE=FLOW) TX: START Immediate Assignment Uplink (AGCH)
- TRX=0 (0) TS=7 TA=7 TSC=0 TFI=6 USF=6
Sending data request: trx=0 ts=0 sapi=2 arfcn=0 fn=0 block=0 data=2d 06 3f 10 0f 00 00 7e 8b 29 07 00 c9 8c 70 0b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
+++++++++++++++++++++++++ RX : Uplink Control Block +++++++++++++++++++++++++
------------------------- RX : Uplink Control Block -------------------------
MS requests UL TBF in packet resource request of single block, so we provide one:
MS requests UL TBF in packet resource request of single block, but there is no resource request scheduled!
MS supports EGPRS multislot class 11.
********** TBF starts here **********
Allocating UL TBF: MS_CLASS=11/11
Creating MS object, TLLI = 0x00000000
Modifying MS object, TLLI = 0x00000000, MS class 0 -> 11
Modifying MS object, TLLI = 0x00000000, EGPRS MS class 0 -> 11
Slot Allocation (Algorithm A) for class 11
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
- Skipping TS 7, because no USF available
- Failed to allocate a TS, no USF available
No PDCH resource
Creating MS object, TLLI = 0x00000000
Modifying MS object, UL TLLI: 0x00000000 -> 0xffeeddcc, not yet confirmed
TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to ASSIGN
Attaching TBF to MS object, TLLI = 0xffeeddcc, TBF = TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN)
Received RTS for PDCH: TRX=0 TS=7 FN=2654218 block_nr=8 scheduling USF=0 for required uplink resource of UL TFI=0
TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) starting timer 0.
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654218 block=8 data=40 84 7f f7 6e e6 41 4b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Destroying MS object, TLLI = 0x00000000
Creating MS object, TLLI = 0x00000000
Modifying MS object, UL TLLI: 0x00000000 -> 0xffeeddcc, not yet confirmed
TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=NULL) changes state from NULL to ASSIGN
Attaching TBF to MS object, TLLI = 0xffeeddcc, TBF = TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN)
TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) starting timer 0.
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654218 block=8 data=47 84 7f f7 6e e6 41 4b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) timer 0 expired.
TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) releasing due to PACCH assignment timeout.
TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) free
TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN) stopping timer 0.
Detaching TBF from MS object, TLLI = 0xffeeddcc, TBF = TBF(TFI=0 TLLI=0xffeeddcc DIR=UL STATE=ASSIGN)
Destroying MS object, TLLI = 0xffeeddcc
********** TBF ends here **********

4
tests/tbf/TbfTest.ok
View File

@ -77,3 +77,7 @@ Testing retx for MCS 6 to reseg_mcs 3
=== start test_packet_access_rej_epdan ===
packet reject: 40 84 7f f7 6e e6 41 4b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
=== end test_packet_access_rej_epdan ===
=== start test_packet_access_rej_prr ===
=== end test_packet_access_rej_prr ===
=== start test_packet_access_rej_prr_no_other_tbfs ===
=== end test_packet_access_rej_prr_no_other_tbfs ===