ETSI TS 148 008 V17.0.0 (2022-05)

Digital cellular telecommunications system (Phase 2+) (GSM); Mobile Switching Centre - Base Station system (MSC-BSS) interface; Layer 3 specification (3GPP TS 48.008 version 17.0.0 Release 17)

RTS/TSGR-0048008vh00

General Information

• Status: Not Published
• Technical Committee: 3GPP RAN - Technical Specification Group Radio Access Network
• Current Stage: 12 - Completion
• Completion Date: 05-May-2022

Standards Content (Sample)

ETSI TS 148 008 V17.0.0 (2022-05)






TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Mobile Switching Centre - Base Station system (MSC-BSS)
interface;
Layer 3 specification
(3GPP TS 48.008 version 17.0.0 Release 17)

R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS

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3GPP TS 48.008 version 17.0.0 Release 17 1 ETSI TS 148 008 V17.0.0 (2022-05)

Reference
RTS/TSGR-0048008vh00
Keywords
GSM
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ETSI

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3GPP TS 48.008 version 17.0.0 Release 17 2 ETSI TS 148 008 V17.0.0 (2022-05)
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ETSI

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3GPP TS 48.008 version 17.0.0 Release 17 3 ETSI TS 148 008 V17.0.0 (2022-05)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 11
1 Scope . 12
1.1 References . 12
1.2 Definitions and Abbreviations . 14
2 Application to interface structures . 15
2.1 The BSS Operation and Maintenance Application Part . 15
2.2 The Direct Transfer Application Part . 15
2.3 The BSS Management Application Part . 16
2.4 Handling of abnormal events related to the BSSAP Header . 16
3 The BSS Management Application Part . 17
3.1 BSSMAP Procedures . 17
3.1.1 Assignment . 17
3.1.1.1 Successful Operation . 18
3.1.1.2 Assignment Failure . 21
3.1.1.3 Abnormal Conditions . 22
3.1.2 Blocking and Unblocking . 22
3.1.2.1 Successful Operation . 23
3.1.2.2 Abnormal Conditions . 24
3.1.2.2.1 Applying to the Single Circuit Block Procedure . 24
3.1.2.2.2 Applying to the Circuit Group Block Procedure . 24
3.1.3 Resource Indication . 25
3.1.3.1 Successful Operation . 26
3.1.4 Reset . 27
3.1.4.1 Global Reset Procedure . 27
3.1.4.1.1 Reset at the BSS . 27
3.1.4.1.2 Reset at the MSC . 27
3.1.4.1.3 Abnormal Conditions . 28
3.1.4.1.3.1 Abnormal Condition at the BSS. 28
3.1.4.1.3.2 Abnormal Condition at the MSC . 28
3.1.4.2 Reset Circuit . 28
3.1.4.2.1 Reset Circuit at the BSS . 28
3.1.4.2.2 Reset Circuit at the MSC . 28
3.1.4.2.3 Abnormal conditions . 28
3.1.4.3 Reset IP Resource . 29
3.1.4.3.1 Reset IP Resource procedure initiated by the BSS . 29
3.1.4.3.2 Reset IP Resource procedure initiated by the MSC . 29
3.1.4.3.3 Abnormal conditions . 29
3.1.5 External Handover . 30
3.1.5.1 Handover Required Indication . 30
3.1.5.1.1 Generation of the HANDOVER REQUIRED message . 31
3.1.5.1.2 Abnormal conditions for DTM Handover . 33
3.1.5.2 Handover Resource allocation . 34
3.1.5.2.1 Operation of the procedure . 34
3.1.5.2.2 Handover Resource Allocation Failure . 38
3.1.5.2.3 Abnormal conditions . 39
3.1.5.3 Handover execution . 39
3.1.5.3.1 Operation of the procedure . 40
3.1.5.3.2 Handover Failure . 41
3.1.5.3.3 Abnormal Conditions . 42
3.1.5a Handover from GSM to another System. 42
3.1.5a.1 Generation of the HANDOVER REQUIRED message for intersystem handover . 43
ETSI

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3GPP TS 48.008 version 17.0.0 Release 17 4 ETSI TS 148 008 V17.0.0 (2022-05)
3.1.5a.2 Inter-System Handover Resource Allocation Failure . 44
3.1.5a.3 Intersystem handover Execution . 45
3.1.5a.4 Inter System Handover Failure . 46
3.1.5a.5 Abnormal Conditions . 46
3.1.5b Handover from another system to GSM . 46
3.1.5b.1 General . 46
3.1.5b.2 Inter-System Handover Resource Allocation . 47
3.1.5c BSS Internal Handover with MSC support . 47
3.1.5c.1 Internal Handover Preparation . 47
3.1.5c.1.1 Internal Handover Required Reject . 48
3.1.5c.2 Internal Handover Execution . 48
3.1.5c.2.1 Internal Handover failure. 49
3.1.5c.2.2 Abnormal Conditions . 49
3.1.5c.3 Internal Handover Enquiry . 50
3.1.6 Internal Intra-Cell Handover Procedure . 50
3.1.7 Internal Inter-Cell Handover Procedure . 51
3.1.8 Handover Candidate Enquiry . 51
3.1.8.1 Successful Operation . 52
3.1.8.2 Abnormal conditions . 52
3.1.9 Release of Radio Resource And Terrestrial Resource . 52
3.1.9.1 Release Due To Transaction Completion . 52
3.1.9.1a Release of radio resources and the terrestrial resources for VGCS/VBS calls: . 53
3.1.9.2 Release due to BSS generated reason . 53
3.1.9.3 Release due to successful handover . 55
3.1.9.4 Release due to uplink release . 55
3.1.10 Paging . 55
3.1.11 Trace Invocation . 55
3.1.12 Flow Control . 56
3.1.12.1 Philosophy . 56
3.1.12.2 Processor Overload at the MSC . 56
3.1.12.3 Processor/CCCH overload at the BSS . 57
3.1.12.4 Message throughput congestion . 57
3.1.13 Classmark Handling Procedures . 57
3.1.13.1 Classmark request procedure . 57
3.1.13.2 Classmark updating procedure . 57
3.1.14 Cipher Mode Control . 57
3.1.14.1 Successful Operation . 57
3.1.14.2 Abnormal Conditions . 58
3.1.15 General SCCP Abnormal Conditions . 58
3.1.16 Initial MS message. 59
3.1.17 Queuing Indication . 59
3.1.17.1 Operation of the procedure in case of assignment procedure . 59
3.1.17.2 Operation of the procedure in case of hand-over resource allocation procedure . 60
3.1.18 Data Link Control SAPI not Equal to "0" . 60
3.1.18.1 Data link set up across the radio interface . 60
3.1.18.1.1 MS to MSC direction . 60
3.1.18.1.2 MSC to MS Direction . 60
3.1.18.2 Choice of the signalling link . 60
3.1.19 BSSMAP Error Handling . 61
3.1.19.1 Definitions of Types of Information Elements . 61
3.1.19.2 Erroneous Events . 62
3.1.19.3 Non-erroneous Events . 62
3.1.19.4 Other Events . 62
3.1.19.5 Appropriate Error Message and Cause Value . 63
3.1.19.6 Unequipped Circuit Identification Code . 63
3.1.19.7 Field Elements . 64
3.1.20 Load Indication Procedure . 64
3.1.20.1 Operation of the procedure . 65
3.1.21 Voice group call service and voice broadcast service call set-up and resource assignment . 65
3.1.21.1 Successful operation. 66
3.1.21.2 VGCS/VBS call set-up abnormal cases . 66
3.1.21.3 VGCS/VBS call set-up failure . 66
ETSI

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3GPP TS 48.008 version 17.0.0 Release 17 5 ETSI TS 148 008 V17.0.0 (2022-05)
3.1.22 Voice group call service and voice broadcast service Assignment procedure . 66
3.1.22.1 Successful operation. 66
3.1.22.2 VGCS/VBS Assignment abnormal cases . 69
3.1.22.3 VGCS/VBS Assignment failure . 70
3.1.22.4 VGCS/VBS Queuing Indication . 71
3.1.23 (void) . 71
3.1.24 Voice group call uplink control procedure - talker priority not supported by the network . 71
3.1.24.1 Uplink allocation procedure . 71
3.1.24.1.1 Successful uplink allocation operation . 72
3.1.24.1.2 Unsuccessful uplink allocation operation . 72
3.1.24.2 Uplink release procedure . 72
3.1.24.3 Uplink seize procedure . 72
3.1.24a Voice group call uplink control procedure - talker priority supported by the network . 72
3.1.24.a.1 General . 72
3.1.24a.2 Uplink allocation procedure . 73
3.1.24a.2.1 Successful uplink allocation operation . 73
3.1.24a.2.1.1 Normal Priority Request . 73
3.1.24a.2.1.2 Privileged or Emergency Priority Request via Uplink Access procedure . 73
3.1.24a.2.1.3 Privileged or Emergency Priority Request via Priority Uplink Request procedure . 73
3.1.24a.2.2 Unsuccessful uplink allocation operation . 74
3.1.24a.2.2.1 Normal Priority Uplink Request . 74
3.1.24a.2.2.2 Privileged or Emergency Uplink Request via Uplink Access procedure . 74
3.1.24a.2.2.3 Privileged or Emergency Uplink Request via Priority Uplink Request procedure . 74
3.1.24a.3 Uplink release procedure . 75
3.1.24a.4 Uplink seize procedure . 75
3.1.24a.5 Emergency Reset procedure via UPLINK ACCESS message . 75
3.1.24a.5.1 Unsuccessful . 75
3.1.24a.6 Emergency Reset procedure via PRIORITY UPLINK REQUEST message . 75
3.1.24a.6.1 Unsuccessful . 75
3.1.24b Talker Information . 75
3.1.24c SMS to ongoing VGCS call all . 76
3.1.24d Distributing application-specific data to ongoing VGCS call . 76
3.1.25 PDSS1 flow control . 76
3.1.26 Circuit re-selection procedure . 76
3.1.27 LSA handling . 77
3.1.28 Location Acquisition.
...