osmo-ttcn3-hacks/library/RLCMAC_CSN1_Types.ttcn

720 lines
21 KiB
Plaintext

/* GPRS RLC/MAC Control Messages as per 3GPP TS 44.060 manually transcribed from the CSN.1 syntax, as no CSN.1
* tool for Eclipse TITAN could be found. Implements only the minimum necessary messages for Osmocom teseting
* purposes. */
/* (C) 2017-2018 Harald Welte <laforge@gnumonks.org>
* contributions by sysmocom - s.f.m.c. GmbH
* All rights reserved.
*
* Released under the terms of GNU General Public License, Version 2 or
* (at your option) any later version.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
module RLCMAC_CSN1_Types {
import from General_Types all;
import from Osmocom_Types all;
import from GSM_Types all;
import from MobileL3_GMM_SM_Types all;
/* TS 44.060 11.2.0.1 */
type enumerated RlcmacDlCtrlMsgType {
PACKET_ACCESS_REJECT ('100001'B),
PACKET_CELL_CHANGE_ORDER ('000001'B),
PACKET_DL_ASSIGNMENT ('000010'B),
PACKET_MEASUREMENT_ORDER ('000011'B),
PACKET_PAGING_REQUEST ('100010'B),
PACKET_PDCH_RELEASE ('100011'B),
PACKET_POLLING_REQUEST ('000100'B),
PACKET_PWR_CONTROL_TA ('000101'B),
/* TODO */
PACKET_TBF_RELEASE ('001000'B),
PACKET_UL_ACK_NACK ('001001'B),
PACKET_UL_ASSIGNMENT ('001010'B),
PACKET_DL_DUMMY_CTRL ('100101'B)
} with { variant "FIELDLENGTH(6)" };
/* TS 44.060 11.2.0.2 */
type enumerated RlcmacUlCtrlMsgType {
PACKET_CELL_CHANGE_FEATURE ('000000'B),
PACKET_CONTROL_ACK ('000001'B),
PACKET_DL_ACK_NACK ('000010'B),
PACKET_UL_DUMMY_CTRL ('000011'B),
PACKET_MEASUREMENT_REPORT ('000100'B),
PACKET_ENH_MEASUREMENT_REPORT ('001010'B),
PACKET_RESOURCE_REQUEST ('000101'B),
PACKET_MOBILE_TBF_STATUS ('000110'B),
PACKET_PSI_STATUS ('000111'B),
PACKET_EGPRS_DL_ACK_NACK ('001000'B),
PACKET_PAUSE ('001001'B),
ADDITIONAL_MS_RA_CAPABILITIES ('001011'B),
PACKET_CELL_CANGE_NOTIFICATION ('001100'B),
PACKET_SI_STATUS ('001101'B),
PACKET_CS_REQUEST ('001110'B),
MBMS_SERVICE_REQUEST ('001111'B),
MBMS_DL_ACK_NACK ('010000'B)
} with { variant "FIELDLENGTH(6)" };
type record NullGlobalTfi {
BIT1 presence ('0'B),
GlobalTfi global_tfi
} with { variant "" };
type record TenTlli {
BIT2 presence ('10'B),
GprsTlli tlli
} with { variant ""
variant (tlli) "BYTEORDER(first)"
};
type union GlobalTfiOrTlli {
NullGlobalTfi global_tfi,
TenTlli tlli
};
/* 11.2.7 Packet Downlink Assignment */
type record PacketDlAssignment {
PageMode page_mode,
BIT1 pres1,
PersistenceLevels persistence_levels optional,
GlobalTfiOrTlli tfi_or_tlli
/* TODO */
} with {
variant (persistence_levels) "PRESENCE(pres1 = '1'B)"
};
/* 11.2.29 Packet Uplink Assignment */
type record O_Gtfi {
BIT1 presence ('0'B),
GlobalTfi global_tfi
} with { variant "" };
type record IO_Tlli {
BIT2 presence ('10'B),
GprsTlli tlli
} with { variant ""
variant (tlli) "BYTEORDER(first)"
};
type record IIO_Tqi {
BIT3 presence ('110'B),
PacketRequestReference pkt_req_ref
} with { variant "" };
type union PktUlAssUnion {
O_Gtfi global_tfi,
IO_Tlli tlli,
IIO_Tqi tqi
} with {
variant "TAG(global_tfi, presence = '0'B;
tlli, presence = '10'B;
tqi, presence = '110'B)"
};
type record DynamicAllocation {
BIT1 extd_dyn_alloc,
BIT1 p0_present,
uint4_t p0 optional,
BIT1 pr_mode optional,
BIT1 usf_granularity,
BIT1 ul_tfi_ass_present,
uint5_t ul_tfi_assignment optional,
BIT1 reserved ('0'B),
BIT1 tbf_starting_time_present,
StartingFnDesc tbf_starting_time optional,
TsAllocationUnion ts_allocation
} with {
variant (p0) "PRESENCE(p0_present = '1'B)"
variant (pr_mode) "PRESENCE(p0_present = '1'B)"
variant (ul_tfi_assignment) "PRESENCE(ul_tfi_ass_present = '1'B)"
variant (tbf_starting_time) "PRESENCE(tbf_starting_time_present = '1'B)"
};
type record TsAllocationTs {
BIT1 presence,
uint3_t usf_tn optional
} with {
variant (usf_tn) "PRESENCE(presence = '1'B)"
};
type record length(8) of TsAllocationTs TsAllocationTsArr;
type record TnGamma {
BIT1 presence,
uint3_t usf_tn optional,
uint5_t gamma_tn optional
} with {
variant (usf_tn) "PRESENCE(presence = '1'B)"
variant (gamma_tn) "PRESENCE(presence = '1'B)"
};
type record length(8) of TnGamma TnGamma8;
type record TsAllocationPwr {
uint4_t alpha,
TnGamma tn_gamma
} with { variant "" };
type record TsAllocationUnion {
BIT1 presence,
TsAllocationTsArr ts optional,
TsAllocationPwr ts_with_pwr optional
} with {
variant (ts) "PRESENCE(presence = '0'B)"
variant (ts_with_pwr) "PRESENCE(presence = '1'B)"
};
type record SingleBlockAllocation {
uint3_t timeslot_nr,
BIT1 alpha_present,
uint4_t alpha optional,
uint5_t gamma_tn,
BIT1 p0_present,
uint4_t p0 optional,
BIT1 reserved ('0'B) optional,
BIT1 pr_mode optional,
StartingFnDesc tbf_starting_time
} with {
variant (alpha) "PRESENCE(alpha_present = '1'B)"
variant (p0) "PRESENCE(p0_present = '1'B)"
variant (reserved) "PRESENCE(p0_present = '1'B)"
variant (pr_mode) "PRESENCE(p0_present = '1'B)"
};
type record PktUlAssGprs {
ChCodingCommand ch_coding_cmd,
BIT1 tlli_block_chan_coding,
PacketTimingAdvance pkt_ta,
BIT1 freq_par_present,
FrequencyParameters freq_par optional,
BIT2 alloc_present,
DynamicAllocation dyn_block_alloc optional,
SingleBlockAllocation sgl_block_alloc optional
} with {
variant (freq_par) "PRESENCE(freq_par_present = '1'B)"
variant (dyn_block_alloc) "PRESENCE(alloc_present = '01'B)"
variant (sgl_block_alloc) "PRESENCE(alloc_present = '10'B)"
};
type record PacketUlAssignment {
PageMode page_mode,
BIT1 persistence_levels_present,
PersistenceLevels persistence_levels optional,
PktUlAssUnion identity,
BIT1 is_egprs, /* msg escape */
PktUlAssGprs gprs optional
} with {
variant (persistence_levels) "PRESENCE(persistence_levels_present = '1'B)"
variant (gprs) "PRESENCE(is_egprs = '0'B)"
};
/* 11.2.10 Packet Paging Request */
type record MobileIdentityLV_Paging {
/* Note that the size of 'len' differs from that of the Mobile Identify IE
* as defined in 3GPP TS 24.008 10.5.1.4 "Mobile Identity"; Paging Requests
* use only 4 bit to encode the length of a mobile identity, whereas the IE
* uses a byte. */
uint4_t len,
octetstring mobile_id
} with {
variant (len) "LENGTHTO(mobile_id)"
variant (mobile_id) "BYTEORDER(first)"
};
type record PageInfoPs {
BIT1 presence ('0'B),
BIT1 ptmsi_or_mobile_id,
GsmTmsi ptmsi optional,
MobileIdentityLV_Paging mobile_identity optional
} with {
variant (ptmsi) "PRESENCE(ptmsi_or_mobile_id = '0'B)"
variant (mobile_identity) "PRESENCE(ptmsi_or_mobile_id = '1'B)"
};
type record PageInfoCs {
BIT1 presence ('1'B),
BIT1 tmsi_or_mobile_id,
GsmTmsi tmsi optional,
MobileIdentityLV_Paging mobile_identity optional,
ChannelNeeded chan_needed,
BIT1 emlpp_prio_present,
uint3_t emlpp_prio optional
} with {
variant (tmsi) "PRESENCE(tmsi_or_mobile_id = '0'B)"
variant (mobile_identity) "PRESENCE(tmsi_or_mobile_id = '1'B)"
variant (emlpp_prio) "PRESENCE(emlpp_prio_present = '1'B)"
};
type union PageInfo {
PageInfoPs ps,
PageInfoCs cs
} with {
variant "TAG(ps, presence = '0'B; cs, presence = '1'B)"
};
type record PacketPagingReq {
PageMode page_mode,
BIT1 persistence_levels_present,
PersistenceLevels persistence_levels optional,
BIT1 nln_present,
uint2_t nln optional,
BIT1 repeated_pageinfo_present,
PageInfo repeated_pageinfo optional
} with {
variant (persistence_levels) "PRESENCE(persistence_levels_present = '1'B)"
variant (nln) "PRESENCE(nln_present = '1'B)"
variant (repeated_pageinfo) "PRESENCE(repeated_pageinfo_present = '1'B)"
};
/* 11.2.28 Uplink Ack/Nack */
type enumerated ChCodingCommand {
CH_CODING_CS1 ('00'B),
CH_CODING_CS2 ('01'B),
CH_CODING_CS3 ('10'B),
CH_CODING_CS4 ('11'B)
} with { variant "FIELDLENGTH(2)" };
type record UlAckNackGprs {
ChCodingCommand ch_coding_cmd,
AckNackDescription ack_nack_desc,
BIT1 cont_res_tlli_present,
GprsTlli cont_res_tlli optional,
BIT1 pkt_ta_present,
PacketTimingAdvance pkt_ta optional,
BIT1 pwr_ctrl_present,
PowerControlParameters pwr_ctrl optional
/* TODO: Extension Bits, Rel5 ,... */
} with {
variant (cont_res_tlli) "PRESENCE(cont_res_tlli_present = '1'B)"
variant (pkt_ta) "PRESENCE(pkt_ta_present = '1'B)"
variant (pwr_ctrl) "PRESENCE(pwr_ctrl_present = '1'B)"
variant (cont_res_tlli) "BYTEORDER(first)"
};
type record PacketUlAckNack {
PageMode page_mode,
BIT2 msg_excape ('00'B),
uint5_t uplink_tfi,
BIT1 is_egprs ('0'B), /* msg escape */
UlAckNackGprs gprs optional
/* TODO: EGPRS */
} with { variant (gprs) "PRESENCE(is_egprs = '0'B)" };
/* 11.2.8 Packet Downlink Dummy Control Block */
type record PacketDlDummy {
PageMode page_mode,
BIT1 persistence_levels_present,
PersistenceLevels persistence_levels optional
} with {
variant (persistence_levels) "PRESENCE(persistence_levels_present = '1'B)"
};
/* 11.9 Global Power Control Parameters */
type record GlobalPwrCtrlParams {
uint4_t alpha,
uint5_t t_avg_v,
uint5_t t_avg_t,
uint4_t pb,
BIT1 pc_meas_chan,
BIT1 spare ('0'B),
uint4_t n_avg_i
};
/* 12.12a Global Packet Timing Advance */
type record TimingAdvanceIdxTN {
uint4_t ta_idx,
uint3_t ts_num
};
type record GlobalPacketTA {
BIT1 ta_val_presence,
uint4_t ta_val optional,
BIT1 ul_presence,
TimingAdvanceIdxTN ul optional,
BIT1 dl_presence,
TimingAdvanceIdxTN dl optional
} with {
variant (ta_val) "PRESENCE(ta_val_presence = '1'B)"
variant (ul) "PRESENCE(ul_presence = '1'B)"
variant (dl) "PRESENCE(dl_presence = '1'B)"
};
/* 11.2.13 Packet Power Control/Timing Advance */
type record PacketPwrControlTAMsg {
BIT1 g_pwr_ctrl_presence,
GlobalPwrCtrlParams g_pwr_ctrl optional,
BIT1 split,
BIT1 split_desc optional,
GlobalPacketTA g_pkt_ta optional,
PowerControlParameters pwr_ctrl optional
/* TODO: additions for R99, REL-7, REL-12 */
} with {
variant (g_pwr_ctrl) "PRESENCE(g_pwr_ctrl_presence = '1'B)"
variant (split_desc) "PRESENCE(split = '1'B)"
/* FIXME: Fancy coding: either both IEs together, or one of them */
variant (g_pkt_ta) "PRESENCE(split = '0'B, split_desc = '0'B)"
variant (pwr_ctrl) "PRESENCE(split = '0'B, split_desc = '1'B)"
};
type record PacketPwrControlTA {
PageMode page_mode,
NullGlobalTfi global_tfi,
/* See 11.1.3.3 'Message escape' error label
* 0 < Message body > ! < Message escape : 1 bit (*) = <no string> > */
BIT1 msg_escape,
PacketPwrControlTAMsg msg optional
} with {
variant (msg) "PRESENCE(msg_escape = '0'B)"
};
/* 11.2.0.1 */
type union RlcmacDlCtrlUnion {
PacketDlAssignment dl_assignment,
PacketUlAssignment ul_assignment,
PacketPagingReq paging,
PacketUlAckNack ul_ack_nack,
PacketDlDummy dl_dummy,
PacketPwrControlTA pwr_ta,
octetstring other
} with { variant "" };
type record RlcmacDlCtrlMsg {
RlcmacDlCtrlMsgType msg_type,
RlcmacDlCtrlUnion u
} with {
variant (u) "CROSSTAG(dl_assignment, msg_type = PACKET_DL_ASSIGNMENT;
ul_assignment, msg_type = PACKET_UL_ASSIGNMENT;
paging, msg_type = PACKET_PAGING_REQUEST;
ul_ack_nack, msg_type = PACKET_UL_ACK_NACK;
dl_dummy, msg_type = PACKET_DL_DUMMY_CTRL;
pwr_ta, msg_type = PACKET_PWR_CONTROL_TA;
other, OTHERWISE
)"
};
external function enc_RlcmacDlCtrlMsg(in RlcmacDlCtrlMsg si) return octetstring
with { extension "prototype(convert) encode(RAW)" };
external function dec_RlcmacDlCtrlMsg(in octetstring stream) return RlcmacDlCtrlMsg
with { extension "prototype(convert) decode(RAW)" };
/* 11.2.6 Packet Downlikn Ack/Nack */
type record ILevel {
BIT1 presence,
uint4_t i_level optional
} with { variant (i_level) "PRESENCE(presence = '1'B)" };
type record length(8) of ILevel ILevels;
type record ChannelQualityReport {
uint6_t c_value,
uint3_t rxqual,
uint6_t sign_var,
ILevels i_levels
} with { variant "" };
type record PacketDlAckNack {
uint5_t dl_tfi,
AckNackDescription ack_nack_desc,
BIT1 chreq_desc_presence,
ChannelReqDescription chreq_desc optional,
ChannelQualityReport ch_qual_rep
} with { variant "" };
/* 11.2.2 Packet Control Acknowledgement */
type enumerated CtrlAck {
MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN_NEW_TFI ('00'B),
MS_RCVD_RBSN1_NO_RBSN0 ('01'B),
MS_RCVD_RBSN0_NO_RBSN1 ('10'B),
MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN ('11'B)
} with { variant "FIELDLENGTH(2)" };
type record PacketCtrlAck {
GprsTlli tlli,
CtrlAck ctrl_ack
/* TODO: Rel5 additions */
} with { variant ""
variant (tlli) "BYTEORDER(first)"
};
/* 1.2.8b Packet Uplink Dummy Control Block */
type record PacketUlDummy {
GprsTlli tlli
} with { variant ""
variant (tlli) "BYTEORDER(first)"
};
/* TS 44.060 sec 12.30 MS Radio Access Capability 2
* (for value part, see 3GPP TS 24.008 sec 10.5.5.12a and table 10.5.146) */
type union MSRadioAccCap2 {
MSRadioAccessCapabilityV msRadioAccessCapabilityV
};
/* Table 11.2.16.2 Access Type */
type enumerated RlcAccessType {
RLC_ACC_TYPE_TWO_PHASE ('00'B),
RLC_ACC_TYPE_PAG_RESPONSE ('01'B),
RLC_ACC_TYPE_CELL_UPDATE ('10'B),
RLC_ACC_TYPE_MM ('11'B)
} with { variant "FIELDLENGTH(2)" };
type union PacketResourceReqID {
GlobalTfi gtfi,
GprsTlli tlli
} with { variant (tlli) "BYTEORDER(first)" };
/* 11.2.16 Packet Resource Request */
type record PacketResourceReq {
BIT1 acc_type_presence,
RlcAccessType acc_type optional,
BIT1 id_type,
PacketResourceReqID id,
BIT1 ms_rac2_presence,
MSRadioAccCap2 ms_rac2 optional,
ChannelReqDescription ch_req_desc,
BIT1 change_mark_presence,
BIT2 change_mark optional,
BIT6 C_val,
BIT1 sign_var_presence,
BIT6 sign_var optional,
ILevels I_levels
/* TODO: additional contents for further Releases (starting from 1999) */
} with {
variant (acc_type) "PRESENCE(acc_type_presence = '1'B)"
variant (id) "CROSSTAG(gtfi, id_type = '0'B; tlli, id_type = '1'B)"
variant (ms_rac2) "PRESENCE(ms_rac2_presence = '1'B)"
variant (change_mark) "PRESENCE(change_mark_presence = '1'B)"
variant (sign_var) "PRESENCE(sign_var_presence = '1'B)"
};
/* 11.2.0.2 */
type union RlcmacUlCtrlUnion {
PacketCtrlAck ctrl_ack,
PacketDlAckNack dl_ack_nack,
PacketUlDummy ul_dummy,
PacketResourceReq resource_req,
octetstring other
} with { variant "" };
type record RlcmacUlCtrlMsg {
RlcmacUlCtrlMsgType msg_type,
RlcmacUlCtrlUnion u
} with {
variant (u) "CROSSTAG(ctrl_ack, msg_type = PACKET_CONTROL_ACK;
dl_ack_nack, msg_type = PACKET_DL_ACK_NACK;
ul_dummy, msg_type = PACKET_UL_DUMMY_CTRL;
resource_req, msg_type = PACKET_RESOURCE_REQUEST;
other, OTHERWISE
)"
};
external function enc_RlcmacUlCtrlMsg(in RlcmacUlCtrlMsg si) return octetstring
with { extension "prototype(convert) encode(RAW)" };
external function dec_RlcmacUlCtrlMsg(in octetstring stream) return RlcmacUlCtrlMsg
with { extension "prototype(convert) decode(RAW)" };
type bitstring ReceivedBlockBitmap length(64) with { variant "BYTEORDER(last)" };
/* 12.3 Ack/Nack Description */
type record AckNackDescription {
BIT1 final_ack,
uint7_t starting_seq_nr,
ReceivedBlockBitmap receive_block_bitmap
} with { variant "" };
/* 12.7 Channel Request Description */
type enumerated RlcMode {
RLC_MODE_ACKNOWLEDGED (0),
RLC_MODE_UNACKNOWLEDGED (1)
} with { variant "FIELDLENGTH(1)" };
type enumerated LlcPduType {
LLC_PDU_IS_SACK_OR_ACK (0),
LLC_PDU_IS_NOT_SACK_OR_ACK (1)
} with { variant "FIELDLENGTH(1)" };
type record ChannelReqDescription {
uint4_t peak_tput_class,
uint2_t priority,
RlcMode rlc_mode,
LlcPduType llc_pdu_type,
uint16_t RlcOctetCount
} with { variant "" };
/* 12.8 Frequency Parameters */
type record FreqIndirect {
uint6_t maio,
uint4_t ma_number,
BIT1 change_mark1_present,
uint2_t change_mark1 optional,
BIT1 change_mark2_present,
uint2_t change_mark2 optional
} with {
variant (change_mark1) "PRESENCE(change_mark1_present = '1'B)"
variant (change_mark2) "PRESENCE(change_mark2_present = '1'B)"
};
type record FreqDirect1 {
uint6_t maio,
GprsMobileAllication mobile_allocation
}
type record FreqDirect2 {
uint6_t maio,
uint6_t hsn,
uint4_t ma_freq_len,
octetstring m1_freq_list
} with {
/* FIXME: this can not be expressed in TTCN-3 ?!? */
//variant (ma_freq_len) "LENGTHTO(m1_freq_list)+3"
variant (ma_freq_len) "LENGTHTO(m1_freq_list)"
};
type record FrequencyParameters {
uint3_t tsc,
BIT2 presence,
uint10_t arfcn optional,
FreqIndirect indirect optional,
FreqDirect1 direct1 optional,
FreqDirect2 direct2 optional
} with {
variant (arfcn) "PRESENCE(presence = '00'B)"
variant (indirect) "PRESENCE(presence = '01'B)"
variant (direct1) "PRESENCE(presence = '10'B)"
variant (direct2) "PRESENCE(presence = '11'B)"
};
/* 12.10 Global TFI */
type record GlobalTfi {
boolean is_dl_tfi,
uint5_t tfi
} with { variant (is_dl_tfi) "FIELDLENGTH(1)" };
/* 12.10a GPRS Mobile Allocation */
type record RflNumberList {
uint4_t rfl_number,
BIT1 presence,
RflNumberList rfl_number_list optional
} with {
variant (rfl_number_list) "PRESENCE(presence = '1'B)"
};
type record GprsMobileAllication {
uint6_t hsn,
BIT1 rfl_number_list_present,
RflNumberList rfl_number_list optional,
BIT1 ma_present,
uint6_t ma_length optional,
bitstring ma_bitmap optional
/* TODO: ARFCN index list */
} with {
variant (rfl_number_list) "PRESENCE(rfl_number_list_present = '1'B)"
variant (ma_length) "PRESENCE(ma_present = '0'B)"
variant (ma_bitmap) "PRESENCE(ma_present = '0'B)"
/* FIXME: this can not be expressed in TTCN-3 ?!? */
//variant (ma_length) "LENGTHTO(ma_bitmap)+1"
variant (ma_length) "LENGTHTO(ma_bitmap)"
}
/* 12.11 Packet Request Reference */
type record PacketRequestReference {
uint11_t ra_info,
uint16_t frame_nr
} with { variant "" };
/* 12.12 Packet Timing Advance */
type record PacketTimingAdvance {
BIT1 val_present,
uint6_t val optional,
BIT1 idx_present,
uint4_t idx optional,
uint3_t timeslot_nr optional
} with {
variant (val) "PRESENCE(val_present = '1'B)"
variant (idx) "PRESENCE(idx_present = '1'B)"
variant (timeslot_nr) "PRESENCE(idx_present = '1'B)"
};
/* 12.13 Power Control Parameters */
type record ZeroOneGamma {
BIT1 gamma_present,
uint5_t gamma
} with {
variant (gamma) "PRESENCE (gamma_present = '1'B)"
};
type record length(8) of ZeroOneGamma ZeroOneGammas;
type record PowerControlParameters {
uint4_t alpha,
ZeroOneGammas gamma
} with { variant "" };
/* 12.14 Persistence Level */
type record length(4) of uint4_t PersistenceLevels;
/* 12.20 Page Mode */
type enumerated PageMode {
PAGE_MODE_NORMAL ('00'B),
PAGE_MODE_EXTENDED ('01'B),
PAGE_MODE_REORG ('10'B),
PAGE_MODE_SAME ('11'B)
} with { variant "FIELDLENGTH(2)" };
/* 12.21 Starting Frame Number */
type record StartingFnDesc {
BIT1 presence,
uint16_t absolute_starting_time optional,
uint13_t relative_k optional
} with {
variant (absolute_starting_time) "PRESENCE(presence = '0'B)"
variant (relative_k) "PRESENCE(presence = '1'B)"
};
/* 3GPP TS 44.060, table 11.2.5a.2 "EGPRS PACKET CHANNEL REQUEST" */
type union EGPRSPktChRequest {
EGPRSPktChRequest_MC5P2RB3 one_phase,
EGPRSPktChRequest_NOB3P2RB3 short, // deprecated
EGPRSPktChRequest_MCG3P2RB3 one_phase_red,
EGPRSPktChRequest_P2RB3 two_phase,
EGPRSPktChRequest_RB5 signalling,
EGPRSPktChRequest_RB5 one_phase_unack,
EGPRSPktChRequest_RB5 dedicated,
EGPRSPktChRequest_RB5 emergency,
EGPRSPktChRequest_P2RB3 two_phase_ipa,
EGPRSPktChRequest_RB5 signalling_ipa
} with {
variant "TAG (
one_phase, tag = '0'B;
short, tag = '100'B;
one_phase_red, tag = '101'B;
two_phase, tag = '110000'B;
signalling, tag = '110011'B;
one_phase_unack, tag = '110101'B;
dedicated, tag = '110110'B;
emergency, tag = '110111'B;
two_phase_ipa, tag = '111000'B;
signalling_ipa, tag = '111001'B;
)"
};
private type record EGPRSPktChRequest_MC5P2RB3 {
BIT1 tag,
BIT5 multislot_class,
BIT2 priority,
BIT3 random_bits
};
private type record EGPRSPktChRequest_NOB3P2RB3 {
BIT3 tag,
BIT3 nr_of_blocks,
BIT2 priority,
BIT3 random_bits
};
private type record EGPRSPktChRequest_MCG3P2RB3 {
BIT3 tag,
BIT3 multislot_class_group,
BIT2 priority,
BIT3 random_bits
};
private type record EGPRSPktChRequest_P2RB3 {
BIT6 tag,
BIT2 priority,
BIT3 random_bits
};
private type record EGPRSPktChRequest_RB5 {
BIT6 tag,
BIT5 random_bits
};
/* TITAN violates length restrictions on returned type, so we cannot do '... return BIT11'.
* Keep this function private as it returns octet-aligned bitstring (+5 padding bits). */
private external function enc_EGPRSPktChRequestInternal(in EGPRSPktChRequest req) return bitstring
with { extension "prototype(convert) encode(RAW)" };
function enc_EGPRSPktChRequest2bits(in EGPRSPktChRequest req) return BIT11
{
var bitstring ra11_pad := enc_EGPRSPktChRequestInternal(req);
return substr(ra11_pad, 0, 11); /* TITAN adds 5 padding bits */
}
function enc_EGPRSPktChRequest2uint(in EGPRSPktChRequest req) return uint16_t
{
var BIT11 ra11 := enc_EGPRSPktChRequest2bits(req);
return bit2int(ra11);
}
} with { encode "RAW"; variant "FIELDORDER(msb)" variant "BYTEORDER(last)" };