【资料名称】：GSM协议英文原版（第四部全集）

【资料作者】：ETSI TC-SMG

【资料日期】：March 1996

【资料语言】：英文

【资料格式】：PDF

【资料目录和简介】：

GSM 04.02 Version 5.0.0: May 1996
Contents
Foreword ...........................................................................................................................................5
1 Scope ......................................................................................................................................7
1.1 Normative references ..................................................................................................7
1.2 Abbreviations..............................................................................................................9
2 General definitions................................................................................................................... 10
2.1 Reference Configurations........................................................................................... 10
2.2 Functional Groups ..................................................................................................... 10
2.3 Reference Points ...................................................................................................... 10
2.4 GSM Interface Points................................................................................................ 10
3 GSM Reference Configuration.................................................................................................. 11
3.1 Mobile Termination (MT)............................................................................................ 11
3.2 Base Station + MSC (BS/MSC).................................................................................. 12
4 Physical Realisation................................................................................................................. 13
History ............................................................................................................................................. 15






GSM 04.03 Version 5.0.0: May 1996
Contents
Foreword .......................................................................................................................................................5
1 Scope ..................................................................................................................................................7
1.1 Normative references ..........................................................................................................7
1.2 Abbreviations .......................................................................................................................9
2 General definitions ............................................................................................................................10
3 Channel types and their use: Traffic channels and user channels....................................................10
3.1 User channels....................................................................................................................10
3.2 Bm Channel .......................................................................................................................10
3.3 Lm Channels......................................................................................................................11
4 Channel types and their use: Control channels.................................................................................12
4.1 Control channel types ........................................................................................................12
4.1.1 Broadcast Control Channel ...........................................................................12
4.1.2 Common Control Channel.............................................................................12
4.1.3 Dedicated Control Channel ...........................................................................13
5 BS access capability .........................................................................................................................13
6 Channel configurations......................................................................................................................14
6.1 Mandatory capabilities .......................................................................................................14
History..........................................................................................................................................................15







GSM 04.07 Version 5.1.0 March 1996
Contents
Foreword ........................................................................................................................................... 7
1 Scope ...................................................................................................................................... 9
2 Normative references ................................................................................................................ 9
3 Abbreviations .......................................................................................................................... 10
4 Introduction............................................................................................................................. 11
4.1 General.................................................................................................................... 11
4.2 Applicability of functional blocks.................................................................................. 11
4.3 Technique of description ............................................................................................ 11
4.3.1 Service description ................................................................................. 12
4.3.2 Abstract service primitives ...................................................................... 12
4.3.3 Protocols and peer-to-peer communication............................................... 12
4.3.4 Contents of signalling layer 3 related Technical Specifications.................... 13
5 Structure of signalling layer 3 functions...................................................................................... 14
5.1 Basic groups of functions........................................................................................... 14
5.2 Protocol architecture ................................................................................................. 16
6 Services provided by signalling layer 3 at the Mobile Station side ................................................ 17
6.1 Registration services ................................................................................................. 17
6.1.1 Service state diagram............................................................................. 18
6.1.2 Service primitives ................................................................................... 19
6.1.2.1 MMR_REG_REQ........................................................... 19
6.1.2.2 MMR_REG_CNF............................................................ 19
6.1.2.3 [reserved] ...................................................................... 19
6.1.2.4 MMR_NREG_REQ......................................................... 19
6.1.2.5 MMR_NREG_IND........................................................... 19
6.2 Call Control services.................................................................................................. 19
6.2.1 Service state diagram............................................................................. 19
6.2.2 Service primitives ................................................................................... 22
6.2.2.1 MNCC_SETUP_REQ...................................................... 23
6.2.2.2 MNCC_SETUP_IND........................................................ 23
6.2.2.3 MNCC_SETUP_RES ...................................................... 23
6.2.2.4 MNCC_SETUP_CNF....................................................... 23
6.2.2.5 MNCC_SETUP_COMPL_REQ ........................................ 23
6.2.2.6 MNCC_SETUP_COMPL_IND.......................................... 23
6.2.2.7 MNCC_REJ_REQ .......................................................... 23
6.2.2.8 MNCC_REJ_IND............................................................ 23
6.2.2.9 MNCC_CALL_CONF_REQ ............................................. 23
6.2.2.10 MNCC_CALL_PROC_IND............................................... 23
6.2.2.11 MNCC_PROGRESS_IND................................................ 23
6.2.2.12 MNCC_ALERT_REQ...................................................... 23
6.2.2.13 MNCC_ALERT_IND........................................................ 24
6.2.2.14 MNCC_NOTIFY_REQ .................................................... 24
6.2.2.15 MNCC_NOTIFY_IND...................................................... 24
6.2.2.16 MNCC_DISC_REQ......................................................... 24
6.2.2.17 MNCC_DISC_IND .......................................................... 24
6.2.2.18 MNCC_REL_REQ .......................................................... 24
6.2.2.19 MNCC_REL_IND............................................................ 24
6.2.2.20 MNCC_REL_CNF........................................................... 24
6.2.2.21 MNCC_FACILITY_REQ.................................................. 24
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6.2.2.22 MNCC_FACILITY_IND.................................................... 24
6.2.2.23 MNCC_START_DTMF_REQ........................................... 24
6.2.2.24 MNCC_START_DTMF_CNF............................................ 24
6.2.2.25 MNCC_STOP_DTMF_REQ............................................. 24
6.2.2.26 MNCC_STOP_DTMF_CNF ............................................. 25
6.2.2.27 MNCC_MODIFY_REQ.................................................... 25
6.2.2.28 MNCC_MODIFY_IND ..................................................... 25
6.2.2.29 MNCC_MODIFY_RES.................................................... 25
6.2.2.30 MNCC_MODIFY_CNF .................................................... 25
6.2.2.31 MNCC_SYNC_IND ......................................................... 25
6.3 Call independent Supplementary Services Support....................................................... 26
6.3.1 Service state diagram............................................................................. 26
6.3.2 Service primitives ................................................................................... 27
6.3.2.1 MNSS_BEGIN_REQ....................................................... 27
6.3.2.2 MNSS_BEGIN_IND......................................................... 27
6.3.2.3 MNSS_FACILITY_REQ .................................................. 27
6.3.2.4 MNSS_FACILITY_IND .................................................... 27
6.3.2.5 MNSS_END_REQ .......................................................... 27
6.3.2.6 MNSS_END_IND............................................................ 27
6.4 Short Message Services Support ............................................................................... 27
7 Services provided by signalling layer 3 on the Network side ........................................................ 28
7.1 Call control services .................................................................................................. 28
7.1.1 Service state diagram............................................................................. 28
7.1.2 Service primitives ................................................................................... 31
7.1.2.1 MNCC_SETUP_REQ...................................................... 32
7.1.2.2 MNCC_SETUP_IND........................................................ 32
7.1.2.3 MNCC_SETUP_RSP....................................................... 32
7.1.2.4 MNCC_SETUP_CNF....................................................... 32
7.1.2.5 MNCC_SETUP_COMPL_REQ ........................................ 32
7.1.2.6 MNCC_SETUP_COMPL_IND.......................................... 32
7.1.2.7 MNCC_REJ_REQ........................................................... 32
7.1.2.8 MNCC_REJ_IND ............................................................ 32
7.1.2.9 MNCC_CALL_CONF_IND ............................................... 32
7.1.2.10 MNCC_CALL_PROC_REQ ............................................. 32
7.1.2.11 MNCC_PROGRESS_REQ.............................................. 32
7.1.2.12 MNCC_ALERT_REQ ...................................................... 32
7.1.2.13 MNCC_ALERT_IND........................................................ 33
7.1.2.14 MNCC_NOTIFY_REQ..................................................... 33
7.1.2.15 MNCC_NOTIFY_IND ...................................................... 33
7.1.2.16 MNCC_DISC_REQ......................................................... 33
7.1.2.17 MNCC_DISC_IND........................................................... 33
7.1.2.18 MNCC_REL_REQ .......................................................... 33
7.1.2.19 MNCC_REL_IND............................................................ 33
7.1.2.20 MNCC_REL_CNF........................................................... 33
7.1.2.21 MNCC_FACILITY_REQ.................................................. 33
7.1.2.22 MNCC_FACILITY_IND.................................................... 33
7.1.2.23 MNCC_START_DTMF_IND............................................. 33
7.1.2.24 MNCC_START_DTMF_RSP............................................ 33
7.1.2.25 MNCC_STOP_DTMF_IND .............................................. 33
7.1.2.26 MNCC_STOP_DTMF_RSP ............................................. 34
7.1.2.27 MNCC_MODIFY_REQ.................................................... 34
7.1.2.28 MNCC_MODIFY_IND ..................................................... 34
7.1.2.29 MNCC_MODIFY_RES.................................................... 34
7.1.2.30 MNCC_MODIFY_CNF .................................................... 34
7.2 Call independent Supplementary Services Support....................................................... 35
7.2.1 Service state diagram............................................................................. 35
7.2.2 Service primitives ................................................................................... 36
7.2.2.1 MNSS_BEGIN_REQ....................................................... 36
7.2.2.2 MNSS_BEGIN_IND......................................................... 36
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7.2.2.3 MNSS_FACILITY_REQ .................................................. 36
7.2.2.4 MNSS_FACILITY_IND.................................................... 36
7.2.2.5 MNSS_END_REQ .......................................................... 36
7.2.2.6 MNSS_END_IND............................................................ 36
7.3 Short Message Services Support ............................................................................... 36
8 Services assumed from signalling layers 1 and 2 ....................................................................... 37
8.1 Priority ..................................................................................................................... 37
8.2 Unacknowledged information transfer ......................................................................... 37
8.3 Acknowledged information transfer............................................................................. 37
8.4 Random access ........................................................................................................ 37
8.5 Channel management and measurements ................................................................... 37
9 Interlayer service interfaces on the Mobile Station side .............................................................. 38
9.1 Services provided by the Radio Resource Management entity ...................................... 38
9.1.1 Service state diagram............................................................................. 39
9.1.2 Service primitives ................................................................................... 40
9.1.2.1 RR_EST_REQ ............................................................... 40
9.1.2.2 RR_EST_IND................................................................. 40
9.1.2.3 RR_EST_CNF................................................................ 40
9.1.2.4 RR_REL_IND................................................................. 40
9.1.2.5 RR_SYNC_IND .............................................................. 40
9.1.2.6 RR_DATA_REQ............................................................. 40
9.1.2.7 RR_DATA_IND............................................................... 41
9.1.2.8 RR_UNIT_DATA_IND ..................................................... 41
9.1.2.9 RR_ABORT_REQ .......................................................... 41
9.1.2.10 RR_ABORT_IND............................................................ 41
9.2 Services provided by the Mobility Management entity................................................... 42
9.2.1 Service state diagram............................................................................. 43
9.2.2 Service primitives ................................................................................... 44
9.2.2.1 MMXX_EST_REQ.......................................................... 44
9.2.2.2 MMXX_EST_IND............................................................ 44
9.2.2.3 MMXX_EST_CNF........................................................... 44
9.2.2.4 MMXX_REL_REQ.......................................................... 44
9.2.2.5 MMXX_REL_IND............................................................ 44
9.2.2.6 MMXX_DATA_REQ........................................................ 45
9.2.2.7 MMXX_DATA_IND ......................................................... 45
9.2.2.8 MMXX_UNIT_DATA_REQ .............................................. 45
9.2.2.9 MMXX_UNIT_DATA_IND................................................ 45
9.2.2.10 MMCC_SYNC_IND......................................................... 45
9.2.2.11 MMXX_REEST_REQ ..................................................... 45
9.2.2.12 MMXX_REEST_CNF...................................................... 45
9.2.2.13 MMXX_ERR_IND........................................................... 45
10 Interlayer service interfaces on the Network side ....................................................................... 46
10.1 Services provided by the Radio Resource Management entity ...................................... 46
10.1.1 Service state diagram............................................................................. 47
10.1.2 Service primitives ................................................................................... 48
10.1.2.1 RR_EST_REQ ............................................................... 48
10.1.2.2 RR_EST_IND................................................................. 48
10.1.2.3 RR_EST_CNF................................................................ 48
10.1.2.4 RR_REL_REQ ............................................................... 48
10.1.2.5 RR_REL_IND................................................................. 48
10.1.2.6 RR_SYNC_REQ............................................................. 48
10.1.2.7 RR_SYNC_CNF ............................................................. 48
10.1.2.8 RR_DATA_REQ............................................................. 48
10.1.2.9 RR_DATA_IND............................................................... 49
10.1.2.10 RR_UNIT_DATA_REQ.................................................... 49
10.1.2.11 RR_UNIT_DATA_IND ..................................................... 49
10.1.2.12 RR_ABORT_REQ .......................................................... 49
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10.1.2.13 RR_ABORT_IND............................................................ 49
10.2 Services provided by the Mobility Management entity................................................... 50
10.2.1 Service state diagram............................................................................. 51
10.2.2 Service primitives ................................................................................... 52
10.2.2.1 MMXX_EST_REQ.......................................................... 52
10.2.2.2 MMXX_EST_IND............................................................ 52
10.2.2.3 MMXX_EST_CNF........................................................... 52
10.2.2.4 MMXX_REL_REQ.......................................................... 52
10.2.2.5 MMXX_REL_IND............................................................ 52
10.2.2.6 MMXX_DATA_REQ........................................................ 52
10.2.2.7 MMXX_DATA_IND ......................................................... 52
10.2.2.8 MMXX_UNIT_DATA_REQ............................................... 52
10.2.2.9 MMXX_UNIT_DATA_IND ................................................ 52
10.2.2.10 MMCC_SYNC_REQ....................................................... 53
10.2.2.11 MMCC_SYNC_CNF........................................................ 53
11 Standard L3 Messages............................................................................................................ 54
11.1 Components of a standard L3 message...................................................................... 54
11.1.1 Format of information elements ............................................................... 54
11.1.1.1 Information element type and value part ........................... 54
11.1.1.2 Length indicator .............................................................. 54
11.1.1.3 Information element identifier ........................................... 55
11.1.1.4 Categories of IEs; order of occurrence of IEI, LI, and
value part....................................................................... 55
11.2 Imperative part of a standard L3 message .................................................................. 58
11.2.1 Protocol discriminator ............................................................................. 58
11.2.2 Skip indicator ......................................................................................... 58
11.2.3 Transaction identifier............................................................................... 59
11.2.4 Message type ........................................................................................ 60
11.2.5 Further information elements of the imperative part ................................... 61
11.3 Non-imperative part of a standard L3 message............................................................ 61
11.4 Presence requirements of information elements........................................................... 62
11.5 Handling of superfluous information............................................................................. 62
11.5.1 Information elements that are unnecessary in a message .......................... 62
Annex A (informative): MN-Services arrow diagram......................................................................... 63
History ............................................................................................................................................. 70







GSM 04.11 Version 5.1.0 March 1996
Contents
Foreword ........................................................................................................................................... 7
1 Scope ...................................................................................................................................... 9
1.1 Normative references .................................................................................................. 9
1.2 Abbreviations.............................................................................................................. 9
2 Overview of Short Message Service (SMS) support................................................................... 10
2.1 Protocols and protocol architecture ............................................................................ 10
2.2 Use of channels ........................................................................................................ 11
2.3 Layer 2 SAPI 3 handling ............................................................................................ 11
3 Service definition ..................................................................................................................... 12
3.1 General.................................................................................................................... 12
3.2 Service provided by the CM-sublayer.......................................................................... 12
3.2.1 Definition of primitives on the MS side...................................................... 13
3.2.1.1 MNSMS-ABORT-REQuest.............................................. 13
3.2.1.2 MNSMS-DATA-REQuest................................................. 13
3.2.1.3 MNSMS-DATA-INDication ............................................... 13
3.2.1.4 MNSMS-ESTablish-REQuest........................................... 13
3.2.1.5 MNSMS-ESTablish-INDication ......................................... 14
3.2.1.6 MNSMS-ERROR-INDication............................................ 14
3.2.1.7 MNSMS-RELease-REQuest............................................ 14
3.2.2 Definition of primitives on the network side ............................................... 14
3.2.2.1 MNSMS-ABORT-REQuest.............................................. 14
3.2.2.2 MNSMS-DATA-REQuest................................................. 14
3.2.2.3 MNSMS-DATA-INDication ............................................... 15
3.2.2.4 MNSMS-ESTablish-REQuest........................................... 15
3.2.2.5 MNSMS-ESTablish-INDication ......................................... 15
3.2.2.6 MNSMS-ERROR-INDication............................................ 15
3.2.2.7 MNSMS-RELease-REQuest............................................ 15
3.3 Service provided by SM-RL ....................................................................................... 15
3.3.1 Definition of primitives on the MS side...................................................... 16
3.3.1.1 SM-RL-DATA-REQuest .................................................. 16
3.3.1.2 SM-RL-DATA-INDication................................................. 16
3.3.1.3 SM-RL-MEMORY-AVAILABLE-REQuest......................... 16
3.3.1.4 SM-RL-REPORT-REQest ............................................... 17
3.3.1.5 SM-RL-REPORT-INDication............................................ 17
3.3.2 Definition of primitives on the network side ............................................... 17
3.3.2.1 SM-RL-DATA-REQuest .................................................. 17
3.3.2.2 SM-RL-DATA-INDication................................................. 17
3.3.2.3 SM-RL-MEMORY-AVAILABLE-INDication........................ 17
3.3.2.4 SM-RL-REPORT-REQuest ............................................. 18
3.3.2.5 SM-RL-REPORT-INDication............................................ 18
4 [Spare]................................................................................................................................... 18
5 CM-procedures....................................................................................................................... 19
5.1 General.................................................................................................................... 19
5.2 Short Message Control states.................................................................................... 19
5.2.1 SMC states at the MS side of the radio interface...................................... 19
5.2.1.1 Mobile Originating Case .................................................. 19
5.2.1.1.1 MO-Idle (State 0)............................... 19
5.2.1.1.2 MO-MM-connection pending (State 1) . 19
5.2.1.1.3 MO-Wait for CP-ACK (State 2) ........... 19
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5.2.1.1.4 MO-MM-connection established (State
3) ...................................................... 19
5.2.1.2 Mobile Terminating case.................................................. 19
5.2.1.2.1 MT-Idle (State 0)................................ 19
5.2.1.2.2 MT-Wait for CP-ACK (State 2)............ 20
5.2.1.2.3 MT-MM-connection established (State
3) ...................................................... 20
5.2.2 SMC states at the network side of the radio interface ............................... 20
5.2.2.1 Mobile Originating Case .................................................. 20
5.2.2.1.1 MO-Idle (State 0)............................... 20
5.2.2.1.2 MO-Wait for CP-ACK (State 2) ........... 20
5.2.2.1.3 MO-MM-connection established (State
3) ...................................................... 20
5.2.2.2 Mobile Terminating Case................................................. 20
5.2.2.2.1 MT-Idle (State 0)................................ 20
5.2.2.2.2 MT-MM-connection pending (State 1) .. 20
5.2.2.2.3 MT-Wait for CP-ACK (State 2)............ 20
5.2.2.2.4 MT-MM-connection established (State
3) ...................................................... 20
5.3 Short message control procedures ............................................................................. 21
5.3.1 MM-connection establishment.................................................................. 21
5.3.2 RPDU transfer........................................................................................ 21
5.3.3 Release of MM and CM connections........................................................ 22
5.3.4 Abnormal cases ..................................................................................... 22
5.4 Concatenating short message or notification transfers.................................................. 23
6 SM-RL-procedures.................................................................................................................. 24
6.1 General .................................................................................................................... 24
6.2 Transition states of SMR entity................................................................................... 24
6.2.1 SMR-states at the MS-side of the radio interface...................................... 24
6.2.1.1 Idle (State 0).................................................................. 24
6.2.1.2 Wait for RP-ACK (State 1) .............................................. 24
6.2.1.3 Wait for RETRANS TIMER (State 4)................................ 24
6.2.2 SMR-states at the network side of the radio interface ............................... 24
6.2.2.1 Idle (State 0).................................................................. 24
6.2.2.2 Wait for RP-ACK (State 1) .............................................. 24
6.2.2.3 Wait to send RP-ACK (State 3) ....................................... 25
6.3 Short Message Relay procedures............................................................................... 25
6.3.1 TPDU relaying........................................................................................ 25
6.3.2 [spare]................................................................................................... 26
6.3.3 Notification relaying................................................................................. 26
6.3.3.1 MS side ......................................................................... 26
6.3.3.1.1 Idle state ........................................... 26
6.3.3.1.2 Wait for RP-ACK state........................ 26
6.3.3.1.3 Wait for RETRANS Timer state ........... 26
6.3.3.2 Network side .................................................................. 27
6.3.3.2.1 Idle state ........................................... 27
6.3.3.2.2 Wait to Send RP-ACK state ................ 27
6.3.4 Abnormal cases ..................................................................................... 27
7 Message functional definitions and content ................................................................................ 28
7.1 General .................................................................................................................... 28
7.2 Messages for short message or notification transfer on CM ......................................... 28
7.2.1 CP-DATA............................................................................................... 28
7.2.2 CP-ACK................................................................................................. 29
7.2.3 CP-ERROR ........................................................................................... 29
7.3 Messages for short message and notification transfer on SM-RL.................................. 29
7.3.1 RP-DATA............................................................................................... 29
7.3.1.1 RP-DATA (Network to Mobile Station).............................. 29
7.3.1.2 RP-DATA (Mobile Station to Network).............................. 30
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7.3.2 RP-SMMA............................................................................................. 30
7.3.3 RP-ACK ................................................................................................ 30
7.3.4 RP-ERROR ........................................................................................... 30
8 Message format and information elements coding...................................................................... 31
8.1 CP-messages........................................................................................................... 31
8.1.1 General ................................................................................................. 31
8.1.2 Protocol Discriminator and Transaction Identifier....................................... 31
8.1.3 Message type........................................................................................ 31
8.1.4 Other required information elements ........................................................ 32
8.1.4.1 CP-User data element..................................................... 32
8.1.4.2 CP-Cause element.......................................................... 32
8.2 RP-messages........................................................................................................... 33
8.2.1 General ................................................................................................. 33
8.2.2 Message type indicator (MTI) ................................................................. 33
8.2.3 Message reference ................................................................................ 34
8.2.4 [Spare].................................................................................................. 34
8.2.5 Other required information elements ........................................................ 34
8.2.5.1 Originator address element ............................................. 34
8.2.5.2 Destination address element............................................ 35
8.2.5.3 RP-User data element..................................................... 35
8.2.5.4 RP-Cause element.......................................................... 36
9 Handling of unknown, unforeseen, and erroneous protocol data .................................................. 38
9.1 General .................................................................................................................... 38
9.2 CP Error Handling ..................................................................................................... 38
9.2.1 Message too short ................................................................................. 38
9.2.2 Unknown or unforeseen transaction identifier ............................................ 38
9.2.3 Unknown or unforeseen message type..................................................... 38
9.2.4 Non-semantical mandatory information element errors............................... 39
9.2.5 Messages with semantically incorrect contents......................................... 39
9.3 RP Error Handling ..................................................................................................... 39
9.3.1 Message too short ................................................................................. 39
9.3.2 Unknown or unforeseen Message Reference............................................ 40
9.3.3 Unknown or unforeseen message type..................................................... 40
9.3.4 Non-semantical mandatory information element errors............................... 40
9.3.5 Messages with semantically incorrect contents......................................... 40
10 Timers.................................................................................................................................... 41
Annex A (informative): Arrow diagrams .......................................................................................... 42
Annex B (normative): SDL-description of the CM-layer .................................................................. 47
Annex C (informative): Arrow diagrams .......................................................................................... 63
Annex D (normative): SDL-description of the short message relay layer.......................................... 69
D.1 Introduction............................................................................................................... 69
Annex E (informative): Cause definition .......................................................................................... 77
Annex F (informative): LAPDm SAPI 3 handling for short message service ....................................... 83
History ............................................................................................................................................. 90









GSM 04.12 Version 5.0.0: July 1996
Contents
Foreword ...........................................................................................................................................5
1. Scope.......................................................................................................................................7
1.1 Normative references...................................................................................................7
1.2 Definitions and abbreviations ........................................................................................7
2 General description....................................................................................................................7
2.1 Scheduling Information.................................................................................................8
3 Message Format on BTS-MS Interface .......................................................................................8
3.1 General ......................................................................................................................8
3.2 Format convention .......................................................................................................9
3.2.1 Numbering convention ...............................................................................9
3.2.2 Order of bit transmission ...........................................................................9
3.3 Block content ..............................................................................................................9
3.3.1 Block Type.............................................................................................10
3.4 SMSCB Message......................................................................................................10
3.5 Schedule Message ....................................................................................................11
3.5.1 Header ..................................................................................................11
3.5.2 New CBSMS Message Bitmap ................................................................12
3.5.3 New CBSMS Message Description ..........................................................13
3.5.4 Other Message Descriptions ...................................................................13
3.5.5 Message description encoding.................................................................14
3.5.5.1 First transmission of an SMSCB within the Schedule
Period............................................................................14
3.5.5.2 Retransmission indication.................................................14
3.5.5.3 Free Message Slot, optional reading ................................15
3.5.5.4 Free Message Slot, reading advised ................................15
3.5.5.5 Reserved Codepoints......................................................15
Annex A (informative): Sample Implementation of SMSCB DRX Mode..............................................16
History .............................................................................................................................................18