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HUAWEI UMTS Radio Access Network Protocols and Signalling Analysis
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Chapter 1 UTRAN Interface Protocols and Functions ................................. 1-1
1.1 Overview ................................................................................................ 1-1
1.2 Uu Interface ............................................................................................ 1-2
1.2.1 Uu Protocol Structure..................................................................... 1-2
1.2.2 RRC Functions............................................................................... 1-4
1.2.3 L2 Functions .................................................................................. 1-5
1.2.4 L1 Functions .................................................................................. 1-6
1.3 Iub interface............................................................................................ 1-6
1.3.1 Iub Protocol Structure .................................................................... 1-6
1.3.2 Functions of NBAP......................................................................... 1-8
1.3.3 NBAP Procedures .......................................................................... 1-8
1.3.4 Iub FP for Common Transport Channel Data Transfer.................. 1-10
1.3.5 Iub FP for Dedicated Transport Channel Data Transfer ................ 1-14
1.4 Iur Interface ............................................................................................ 1-18
1.4.1 Iur Protocol Structure ..................................................................... 1-18
1.4.2 Functions of RNSAP ...................................................................... 1-19
1.4.3 RNSAP Procedures ....................................................................... 1-20
1.4.4 Iur FP for Transport Channel Data Transfer .................................. 1-22
1.5 Iu Interface ............................................................................................. 1-22
1.5.1 Iu Protocol Architecture.................................................................. 1-22
1.5.2 Functions of RANAP ...................................................................... 1-25
1.5.3 RANAP Procedures ....................................................................... 1-26
1.5.4 Functions of Iu UP ......................................................................... 1-28
1.5.5 GTP-U ............................................................................................ 1-33
1.5.6 Functions of SABP......................................................................... 1-33
Chapter 2 Transport Network Layer Procedure Analysis ............................ 2-1
2.1 Overview ................................................................................................ 2-1
2.2 SAAL ...................................................................................................... 2-1
2.2.1 Overview ........................................................................................ 2-1
2.2.2 SSCOP .......................................................................................... 2-2
2.2.3 SSCF ............................................................................................. 2-7
2.2.4 CPCS ............................................................................................. 2-8
2.2.5 SAR................................................................................................ 2-8
2.2.6 LM .................................................................................................. 2-9
2.2.7 SSCOP Message........................................................................... 2-10
2.3 MTP3-B .................................................................................................. 2-11
2.3.1 Overview ........................................................................................ 2-11
2.3.2 Function ......................................................................................... 2-12
2.3.3 Message Structure......................................................................... 2-14
2.3.4 Changeover/Changeback/ Management prohibit .......................... 2-19
2.3.5 Signaling Network Management and Status of Signaling Link ...... 2-20
2.3.6 Signaling Network Management and Signaling Route Status ....... 2-22
2.3.7 MTP3-B Upper User Message....................................................... 2-23
2.3.8 MTP3-B Test Message .................................................................. 2-24
2.3.9 MTP3-B Management Message .................................................... 2-25
2.4 ALCAP.................................................................................................... 2-26
2.4.1 Overview ........................................................................................ 2-26
2.4.2 Function ......................................................................................... 2-27
2.4.3 Message structure ......................................................................... 2-29
2.4.4 Establish Request Message .......................................................... 2-30
2.5 SCCP ..................................................................................................... 2-31
2.5.1 Overview ........................................................................................ 2-31
2.5.2 Function ......................................................................................... 2-32
2.5.3 Message Structure......................................................................... 2-33
2.5.4 Connection Request Message....................................................... 2-34
Chapter 3 Cell Related Procedure Analysis .................................................. 3-1
3.1 Overview ................................................................................................ 3-1
3.2 Procedures Involved in Cell Setup ......................................................... 3-1
3.2.1 Resource Status Indication Procedure .......................................... 3-1
3.2.2 Resource Audit Procedure............................................................. 3-2
3.2.3 Cell Setup Procedure..................................................................... 3-3
3.2.4 Common Transport Channel Setup Procedure.............................. 3-4
3.2.5 Iub Interface User Plane Setup...................................................... 3-4
3.2.6 System Information Update ........................................................... 3-5
3.2.7 Common Measurement Initiation Procedure ................................. 3-5
3.2.8 Cell Reconfiguration Procedure ..................................................... 3-6
3.2.9 Cell Deletion Procedure ................................................................. 3-7
3.2.10 Resource Status Indication Message .......................................... 3-7
3.2.11 Audit Response Message ............................................................ 3-12
3.2.12 Cell Setup Request Message ...................................................... 3-16
3.2.13 Common Transport Channel Setup Request Message ............... 3-20
3.2.14 System Information Update Request Message ........................... 3-25
3.3 Example of Cell Setup Procedures ........................................................ 3-28
Chapter 4 System Information Procedure Analysis ..................................... 4-1
4.1 Overview ................................................................................................ 4-1
4.1.1 System Information Structure ........................................................ 4-1
4.1.2 System Information Monitoring Mechanism ................................... 4-2
4.1.3 Functions of System Information ................................................... 4-2
4.2 System Information Broadcast and Update............................................ 4-3
4.2.1 System Information Broadcast....................................................... 4-3
4.2.2 System Information Update ........................................................... 4-3
4.2.3 System Information Message ........................................................ 4-4
4.3 System Information Modification ............................................................ 4-6
4.3.1 Modification by a value tag ............................................................ 4-7
4.3.2 Modification by a timer ................................................................... 4-7
4.3.3 Paging Type 1 Message ................................................................ 4-7
Chapter 5 Call Setup and Release Procedure Analysis ............................... 5-1
5.1 Overview ................................................................................................ 5-1
5.2 Paging .................................................................................................... 5-1
5.2.1 Overview ........................................................................................ 5-1
5.2.2 Paging for UEs in Idle Mode or in PCH State ................................ 5-2
5.2.3 Paging for UEs in CELL_DCH or CELL_FACH State .................... 5-3
5.2.4 Paging Type 1 Message ................................................................ 5-3
5.2.5 Paging Type 2 Message ................................................................ 5-4
5.3 RRC Connection Setup .......................................................................... 5-5
5.3.1 Overview ........................................................................................ 5-5
5.3.2 RRC Connection Setup on Dedicated Channel ............................. 5-6
5.3.3 RRC Connection Setup on Common Channel............................... 5-7
5.3.4 RRC Connection Reject ................................................................. 5-7
5.3.5 RRC Connection Request Message .............................................. 5-8
5.3.6 RRC Connection Setup Message .................................................. 5-10
5.3.7 RRC Connection Reject Message ................................................. 5-13
5.3.8 Radio Link Setup Request Message.............................................. 5-14
5.4 Direct Transfer Messages ...................................................................... 5-18
5.4.1 Overview ........................................................................................ 5-18
5.4.2 Initial Direct Transfer ...................................................................... 5-18
5.4.3 Uplink Direct Transfer .................................................................... 5-19
5.4.4 Downlink Direct Transfer................................................................ 5-20
5.4.5 Initial Direct Transfer Message ...................................................... 5-21
5.4.6 Uplink Direct Transfer Message..................................................... 5-22
5.4.7 Downlink Direct Transfer Message ................................................ 5-23
5.5 UE Capability Information....................................................................... 5-24
5.5.1 UE Capability Enquiry .................................................................... 5-25
5.5.2 UE Capability Information Update.................................................. 5-25
5.6 RAB Setup.............................................................................................. 5-26
5.6.1 Overview ........................................................................................ 5-26
5.6.2 DCH-DCH ...................................................................................... 5-27
5.6.3 CCH-DCH ...................................................................................... 5-30
5.6.4 CCH-CCH ...................................................................................... 5-32
5.6.5 RAB Assignment Request Message.............................................. 5-33
5.6.6 RAB Assignment Response Message ........................................... 5-36
5.6.7 Radio Bearer Setup Message ........................................................ 5-38
5.7 Call Release ........................................................................................... 5-43
5.7.1 Overview ........................................................................................ 5-43
5.7.2 Iu Signaling Connection Release................................................... 5-44
5.7.3 RAB Release ................................................................................. 5-45
5.7.4 Combined Release of CS Domain Iu Signaling Link and RAB ...... 5-47
5.7.5 RRC Connection Release .............................................................. 5-48
Chapter 6 Mobility Management Procedure Analysis .................................. 6-1
6.1 Overview ................................................................................................ 6-1
6.2 Forward handover .................................................................................. 6-1
6.2.1 Overview ........................................................................................ 6-1
6.2.2 Cell Update .................................................................................... 6-1
6.2.3 URA Update ................................................................................... 6-3
6.2.4 Cell Update Message..................................................................... 6-4
6.2.5 URA Update Message ................................................................... 6-6
6.3 Soft Handover ........................................................................................ 6-8
6.3.1 Overview ........................................................................................ 6-8
6.3.2 Radio Link Addition ........................................................................ 6-9
6.3.3 Radio Link Deletion........................................................................ 6-10
6.3.4 Radio Link Addition and Deletion................................................... 6-12
6.3.5 Radio Link Setup Request Message.............................................. 6-13
6.3.6 Active Set Update Message........................................................... 6-13
6.4 Hard Handover ....................................................................................... 6-15
6.4.1 Overview ........................................................................................ 6-15
6.4.2 Compressed Mode......................................................................... 6-16
6.4.3 Iur Interface Hard Handover .......................................................... 6-17
6.4.4 Combined Hard Handover ............................................................. 6-19
6.4.5 Radio Link Setup Request Message.............................................. 6-22
6.4.6 Physical Channel Reconfiguration Message ................................. 6-22
6.5 Inter-RAT Handover ............................................................................... 6-24
6.5.1 Overview ........................................................................................ 6-24
6.5.2 WCDMA->GSM Inter-RAT Handover ............................................ 6-25
6.5.3 GSM->WCDMA Inter-RAT Handover ............................................ 6-27
6.5.4 GSM/GPRS->WCDMA Cell Reselection ....................................... 6-29
6.5.5 WCDMA->GSM/GPRS Cell Reselection ....................................... 6-29
6.5.6 Handover from UTRAN Command Message................................. 6-32
6.5.7 Handover to UTRAN Command Message..................................... 6-33
6.6 Relocation .............................................................................................. 6-35
6.6.1 Overview ........................................................................................ 6-35
6.6.2 Static Relocation ............................................................................ 6-35
6.6.3 Relocation with Hard Handover ..................................................... 6-39
6.6.4 Relocation with Forward Handover................................................ 6-41
6.6.5 Relocation Required Message....................................................... 6-42
6.6.6 Relocation Request Message ........................................................ 6-45
6.6.7 Relocation Command Message ..................................................... 6-46
6.6.8 UTRAN Mobility Information Message........................................... 6-49
6.6.9 Uplink Signaling Transfer Indication Message............................... 6-51
Chapter 7 Dynamic Resource Control Procedure Analysis ........................ 7-1
7.1 Overview ................................................................................................ 7-1
7.2 RAB Modification.................................................................................... 7-1
7.2.1 Overview ........................................................................................ 7-1
7.2.2 RAB Modification (DCH-DCH) ....................................................... 7-1
7.2.3 RAB Assignment Request Message.............................................. 7-3
7.2.4 Radio Bearer Reconfiguration Message ........................................ 7-3
7.3 Dynamic Channel Reconfiguration......................................................... 7-6
7.3.1 Overview ........................................................................................ 7-6
7.3.2 RB Reconfiguration........................................................................ 7-7
7.3.3 Radio Bearer Reconfiguration Message ........................................ 7-8
Appendix A Tracing Tools .............................................................................. A-1
A.1 About Tracing Tools............................................................................... A-1
A.1.1 RNC Tracing Tool .......................................................................... A-1
A.1.2 NodeB Tracing Tool....................................................................... A-1
Appendix B Call Example ............................................................................... B-1
B.1 Overview ................................................................................................ B-1
B.2 Originating Call Procedure..................................................................... B-1
B.3 Terminated Call procedure .................................................................... B-4
Appendix C Acronyms and Abbreviations.................................................... C-1
Index .................................................................................................................
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