ETSI ETS 300 609-2 ed.3 (1998-10)

Digital cellular telecommunications system (Phase 2) (GSM); Base Station System (BSS) equipment specification; Part 2: Signalling aspects (GSM 11.23 version 4.9.1)

RE/SMG-081123PR2

Digitalni celični telekomunikacijski sistem (faza 2) ¬– Specifikacija opreme sistema baznih postaj (BSS) – 2. del: Signalizacijski vidiki (GSM 11.23, različica 4.9.1)

General Information

• Status: Published
• Publication Date: 22-Oct-1998
• Technical Committee: SMG 8 - Base Station System (BSS) Testing (GSM 11.20)
• Current Stage: 12 - Completion
• Due Date: 06-Nov-1998
• Completion Date: 23-Oct-1998
• Ref Project: SIST ETS 300 609-2 E3:2003 - Digital cellular telecommunications system (Phase 2) (GSM); Base Station System (BSS) equipment specification; Part 2: Signalling aspects (GSM 11.23 version 4.9.1)

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2003
'LJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D¤±6SHFLILNDFLMDRSUHPHVLVWHPD
ED]QLKSRVWDM%66±GHO6LJQDOL]DFLMVNLYLGLNL*60UD]OLþLFD
Digital cellular telecommunications system (Phase 2) (GSM); Base Station System (BSS)
equipment specification; Part 2: Signalling aspects (GSM 11.23 version 4.9.1)
Ta slovenski standard je istoveten z: ETS 300 609-2 Edition 3
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 609-2
TELECOMMUNICATION October 1998
STANDARD Third Edition
Source: SMG Reference: RE/SMG-081123PR2
ICS: 33.020
Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
Digital cellular telecommunications system (Phase 2);
Base Station System (BSS) equipment specification;
Part 2: Signalling aspects
(GSM 11.23 version 4.9.1)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: [e-mail] - http://www.etsi.org
Tel.: [phone] - Fax: [phone]
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1998. All rights reserved.

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Standards Making Support Dept." at the address shown on the title page.

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
Contents
Foreword .11
1 Scope .13
2 Normative references.13
3 Abbreviations.15
4 Guide to this ETS .15
4.1 Layer 2 signalling .15
4.2 Layer 3 signalling .15
4.3 Core Specifications.15
5 Testing of Layer 2 (LAPDm) functions .16
5.1 Scope.16
5.2 Introduction .16
5.3 Layer 2 test frames .16
5.4 General requirements .17
5.5 Establishment of the dedicated physical resource.18
5.5.1 MS-originated .18
5.5.1.1 Contention resolution on FACCH or SDCCH .18
5.5.1.2 No Contention resolution on FACCH or SDCCH.19
5.5.1.3 No Contention resolution on FACCH (No immediate
Assign procedures).20
5.5.1.4 No contention resolution on SACCH (Short Message
Service).21
5.5.2 BSS-originated .21
5.5.2.1 Short Message Service.21
5.6 Release of the dedicated physical resource .21
5.6.1 MS-originated .21
5.6.2 BSS-originated .21
5.7 LAPDm idle state .21
5.8 Signalling connections (SAPI=0).23
5.8.1 Link establishment.24
5.8.1.1 Normal initialization (contention resolution).24
5.8.1.2 Initialization failure (contention resolution).24
5.8.1.2.1 Repeated SABM (loss of UA frame).24
5.8.1.2.2 SABMs with different information
fields.25
5.8.1.3 Normal initialization (no contention resolution).26
5.8.2 Normal information transfer.27
5.8.2.1 Sequence counting and I frame acknowledgements.27
5.8.2.2 Receipt of an I frame in the timer recovery state.30
5.8.2.3 Segmentation and Concatenation .32
5.8.2.4 Sequence of Segmented and non Segmented I frames .33
5.8.3 Normal Layer 2 release by MS.34
5.8.4 Normal Layer 2 release by BSS .35
5.8.5 Abnormal release .35
5.8.5.1 Abnormal data link release .35
5.8.5.2 Layer 2 release by MS while segmented I frames being
exchanged .37
5.8.5.3 Layer 2 release while BSS in the timer recovery state .37
5.8.6 Frame loss.38
5.8.6.1 I Frame loss (BSS to BSSTE) .38
5.8.6.2 RR Response frame loss (BSSTE to BSS) .38
5.8.6.3 RR response frame loss (BSS to BSSTE) .39
5.8.6.4 UA frame loss (BSS to MS).39

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
5.8.7 Reception of REJ frames. 40
5.8.7.1 Data link layer not in the timer recovery state. 40
5.8.7.2 Data link layer in the timer recovery state, reception of a
REJ response frame . 41
5.8.7.3 Data link layer in the timer recovery state, reception of a
REJ command frame. 42
5.8.8 Frame transmission with incorrect C/R values . 44
5.8.8.1 I frame with C bit set to one . 44
5.8.8.2 SABM frame with C bit set to one . 45
5.8.9 Link failure . 46
5.8.10 Errors in the Control Field. 47
5.8.10.1 N(S) sequence error . 47
5.8.10.2 N(R) sequence error . 49
5.8.10.3 Improper F bit. 50
5.8.11 Receipt of invalid frames . 52
5.9 Short Message Services (SMS) (SAPI=3) . 55
5.9.1 MS-originated link establishment. 56
5.9.2 BSS-originated link establishment. 56
5.9.2.1 Normal initialization (no contention resolution) . 56
5.9.2.2 Initialization failure (no contention resolution) . 57
5.9.2.3 Initialization denial (no contention resolution) . 58
5.9.2.4 Total initialization failure (no contention resolution) . 59
5.9.3 Normal information transfer. 59
5.9.4 Normal layer 2 release by MS. 60
5.9.5 Normal Layer 2 release by BSS. 60
5.9.6 Abnormal release. 61
5.9.7 Frame loss. 62
5.9.8 Reception of REJ frames. 62
5.9.8.1 Data link layer not in the timer recovery state. 62
5.9.8.2 Data link layer in the timer recovery state, reception of a
REJ response frame . 63
5.9.8.3 Data link layer in the timer recovery state, reception of a
REJ command frame. 64
5.9.9 Frame transmission with incorrect C/R values . 66
5.9.9.1 I frame with C bit set to one . 66
5.9.9.2 SABM frame with C bit set to one . 67
5.9.10 Link failure . 68
5.9.11 Errors in the Control Field. 69
5.9.12 Receipt of invalid frames . 69
5.10 Simultaneous transactions on both SAPIs . 70
5.10.1 Normal information transfer. 70
5.10.1.1 Transmission and receipt of non segmented I frames on
both SAPIs . 70
5.10.2 Normal layer 2 release. 71
5.10.2.1 Normal release on SAPI 3 while segmented I frames
being exchanged simultaneously on both SAPIs. 71
5.10.2.2 Normal release on SAPI 0 while segmented I frames
being exchanged simultaneously on both SAPIs. 73
5.10.3 Abnormal Release . 74
5.10.3.1 Abnormal release on SAPI 3 while segmented I frames
being exchanged simultaneously on both SAPIs. 74
5.10.3.2 Abnormal release on SAPI 0 while segmented I frames
being exchanged simultaneously on both SAPIs. 75
5.10.4 Frame Loss. 77
5.10.4.1 I frame loss simultaneously on both SAPIs. 77
5.11 Layer 3 functions. 78
5.12 Short Message Service Cell Broadcast (SMSCB) . 79
6 Internal ABIS interfacing. 79
6.1 Layer 1 . 79
6.2 Signalling transport mechanism, layer 2 . 79
6.2.1 Base Station Controller. 79
6.2.1.1 Successful TEI allocation - fixed TEI . 80

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
6.2.1.2 Denied TEI allocation - fixed TEI .81
6.2.1.3 Successful TEI allocation - additional TEI .82
6.2.1.4 Denied TEI allocation - additional TEI .83
6.2.2 Base Transceiver Station .84
6.2.2.1 Successful TEI allocation - fixed TEI.85
6.2.2.2 Denied TEI allocation - fixed TEI .86
6.2.2.3 Successful TEI allocation - additional TEI .87
6.2.2.4 Denied TEI allocation - additional TEI .88
6.3 LAYER 3 .90
7 Interfacing with the mobile services switching centre .91
7.1 Physical interface layer 1 .91
7.2 Signalling transport mechanism, layer 2.91
7.3 Layer 3 protocol .91
8 Base station system network aspects .92
8.1 Base station system network functions.92
8.1.1 General.92
8.1.2 Testing of the DTAP.93
8.1.2.1 Messages from MSC to MS.93
8.1.2.2 Messages from MS to MSC.94
8.1.3 Testing of the BSSMAP and RR functions.94
8.1.3.1 System information.96
8.1.3.1.1 Dedicated resource set up.96
8.1.3.1.2 No dedicated resource established .97
8.1.3.2 Service requests in SABM frames.98
8.1.3.2.1 Allowed messages.98
8.1.3.2.2 Not allowed messages.99
8.1.3.3 Random access by MS and immediate assignment .100
8.1.3.3.1 Normal Case - SDCCH.100
8.1.3.3.2 Normal Case - TCH .101
8.1.3.3.3 T3101 expiry case.103
8.1.3.3.4 No radio resources available .104
8.1.3.3.5 Immediate assignment extended.105
8.1.3.4 Paging.106
8.1.3.4.1 Normal case.106
8.1.3.4.2 Paging reorganization .107
8.1.3.4.3 Channel needed.108
8.1.3.5 Measurement reporting .108
8.1.3.6 Assignment.109
8.1.3.6.1 Normal case - data/one speech
version .109
8.1.3.6.2 Normal case - several permitted
speech versions.110
8.1.3.6.3 Not supported speech versions .111
8.1.3.6.4 Internal Directed Retry - several
permitted speech versions.112
8.1.3.6.5 Internal Directed Retry - data/one
speech version.113
8.1.3.6.6 External Directed Retry - several
permitted speech versions.115
8.1.3.6.7 External Directed Retry - data/one
speech version.116
8.1.3.6.8 T10 expiry .118
8.1.3.6.9 Terrestrial resources already allocated120
8.1.3.6.10 Reverse to old channel .120
8.1.3.7 External handover as seen from the old BSS.122
8.1.3.7.1 Normal case.122
8.1.3.7.2 T8 expiry .123
8.1.3.7.3 Reversion to old channel .124
8.1.3.8 External handover as seen from the new BSS.126
8.1.3.8.1 Non-synchronized network .126
8.1.3.8.1.1 Normal Case data/one speech version126

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
8.1.3.8.1.2 Normal case - several permitted
speech versions . 128
8.1.3.8.1.3 No LAPDm connection. 130
8.1.3.8.1.4 Wrong Handover Reference . 132
8.1.3.8.1.5 Wrong physical channel. 133
8.1.3.8.1.6 No radio resources available. 134
8.1.3.8.1.7 Clear Command from the MSC. 135
8.1.3.8.1.8 No terrestrial resource available . 136
8.1.3.8.1.9 Handover - CLM2. 137
8.1.3.8.1.10 Handover - CLM2 and CLM3 . 137
8.1.3.8.2 Synchronized network . 138
8.1.3.9 Internal handover . 138
8.1.3.9.1 Internal inter-cell handover. 138
8.1.3.9.1.1 Normal case. 139
8.1.3.9.1.2 No LAPDm connection. 141
8.1.3.9.2 Internal intra-cell handover. 142
8.1.3.9.2.1 Intra-cell handover by the assignment
procedure . 142
8.1.3.9.2.1.1 Normal case. 142
8.1.3.9.2.1.2 T10 expiry. 144
8.1.3.9.2.1.3 Revert to old channel . 145
8.1.3.9.2.1.4 CLM2. 146
8.1.3.9.2.2 Intra-cell handover by the handover
procedure . 147
8.1.3.9.2.2.1 Normal case. 147
8.1.3.9.2.2.2 T8 expiry. 148
8.1.3.9.2.2.3 Reverse to old channel. 149
8.1.3.10 Frequency redefinition. 150
8.1.3.11 Transmission mode change. 151
8.1.3.12 Ciphering mode setting . 152
8.1.3.12.1 Cipher Mode Complete . 152
8.1.3.12.2 DTAP message. 154
8.1.3.12.3 IMEISV request without starting
encryption. 155
8.1.3.12.4 IMEISV request with invalid answer . 156
8.1.3.12.5 IMEISV not requested with invalid
answer. 157
8.1.3.13 Additional assignment. 158
8.1.3.14 Partial release . 158
8.1.3.15 Classmark. 159
8.1.3.15.1 Classmark change . 159
8.1.3.15.2 Classmark Interrogation. 159
8.1.3.16 Channel release. 160
8.1.3.16.1 Normal case. 161
8.1.3.16.2 T3109 expiry. 162
8.1.3.16.3 Radio resources out of service. 163
8.1.3.17 Radio link failure. 164
8.1.3.18 Blocking. 164
8.1.3.18.1 Single circuit blocking. 164
8.1.3.18.1.1 Normal Case . 164
8.1.3.18.1.2 Blocking a terrestrial circuit already
used on a call . 166
8.1.3.18.1.3 No response to the Unblocking
message. 167
8.1.3.18.1.4 Unblocking, Normal case . 168
8.1.3.18.1.5 MSC Reset during Blocking procedure169
8.1.3.18.2 Circuit group blocking. 170
8.1.3.18.2.1 Circuit group block - Normal case. 170
8.1.3.18.2.2 Circuit group unblock - Normal case. 171
8.1.3.19 Resource indication. 172
8.1.3.19.1 Spontaneous indication. 172
8.1.3.19.2 One single indication. 173
8.1.3.19.3 Periodic indication . 174

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
8.1.3.19.4 No indication .175
8.1.3.19.5 Extended resource indicator .176
8.1.3.20 Reset .177
8.1.3.20.1 Global reset.177
8.1.3.20.1.1 Global reset at the BSS .177
8.1.3.20.1.2 Global reset at the MSC.178
8.1.3.20.2 Reset circuit .179
8.1.3.20.2.1 Reset circuit at the BSS.180
8.1.3.20.2.2 Reset circuit at the MSC .181
8.1.3.21 Handover candidate enquiry.182
8.1.3.21.1 Handover candidate enquiry for 3 MSs182
8.1.3.21.2 Handover candidate enquiry for 1 MS.183
8.1.3.21.3 Repetition of the Handover candidate
enquiry message.184
8.1.3.22 Trace invocation .186
8.1.3.22.1 Trace invoked by the MSC.186
8.1.3.22.2 Trace invoked by the BSS .186
8.1.3.23 Flow control .186
8.1.3.23.1 Overload in the MSC.187
8.1.3.23.2 Overload in the BSS .187
8.1.3.24 Data link control for SAPI not equal to 0.187
8.1.3.24.1 MSC-originated transaction .187
8.1.3.24.1.1 Normal case.187
8.1.3.24.1.2 MS failure.188
8.1.3.24.1.3 SAPI 3 transactions rejected in the
OMC.189
8.1.3.24.2 MS-originated transaction.190
8.1.3.24.2.1 Normal case.190
8.1.3.25 Queuing indication.191
8.1.3.25.1 Assignment case .191
8.1.3.25.2 Handover case.193
8.1.3.26 Short Message Service Cell Broadcast (SMSCB).194
8.1.3.27 Unequipped circuit.194
8.1.3.27.1 Normal case.194
8.1.3.27.2 Assignment request message .195
8.1.3.27.3 Handover request message.196
8.1.3.27.4 Blocking acknowledge message.197
8.1.3.27.5 Unblocking acknowledge message .197
8.1.3.27.6 Reset circuit message .198
8.1.3.27.7 Circuit group blocking acknowledge
message .199
8.1.3.27.8 Circuit group unblocking acknowledge
message .200
8.1.3.27.9 Unequipped circuit message .201
8.1.3.28 Confusion.201
8.1.3.28.1 Reserved element used.201
8.1.3.28.2 Zero length value .202
8.1.3.28.3 Inconsistent length value .203
8.1.4 Multiband Management.204
8.1.4.1 Controlled Early Classmark Sending Option .204
8.1.4.2 External handover as seen from the new multiband BSS .206
8.1.4.2.1 Non-synchronized network .206
8.1.4.2.2 Synchronized network.208
8.1.4.2.3 No GSM resources available .208
8.1.4.2.4 No DCS 1800 resources available.208
8.1.4.3 External Directed Retry.208
8.1.4.3.1 External Directed Retry - No
resources in one band .210
8.1.4.4 Internal Directed Retry.211
8.1.4.5 Internal handover.212
8.1.4.6 Specific System Information Management.212
8.1.4.6.1 No dedicated resource established .212
8.1.4.6.2 Dedicated resource set up.213

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
9 Base station controller network aspects . 215
9.1 Base station controller network functions. 215
9.1.1 General . 215
9.1.2 Transparent messages. 216
9.1.3 Non-transparent messages . 216
9.1.3.1 Link establishment indication . 217
9.1.3.2 Link establishment request . 219
9.1.3.3 Link release indication. 220
9.1.3.4 Link release request. 221
9.1.3.5 Transmission of transparent L3-message in
acknowledged mode . 223
9.1.3.6 Reception of transparent L3-message in acknowledged
mode . 223
9.1.3.7 Transmission of transparent L3-message in
unacknowledged mode . 224
9.1.3.8 Reception of transparent L3-message in unacknowledged
mode . 224
9.1.3.9 Link error indication. 225
9.1.3.10 Channel activation. 225
9.1.3.11 Channel mode modify . 227
9.1.3.12 Handover detection. 229
9.1.3.13 Encryption . 230
9.1.3.13.1 Start of encryption . 230
9.1.3.13.2 Stop of encryption . 231
9.1.3.13.3 Failure case. 232
9.1.3.14 Measurement reporting. 234
9.1.3.14.1 Basic measurement reporting . 234
9.1.3.14.2 Pre-processed measurement
reporting (optional) . 234
9.1.3.14.3 Pre-processing configuration
(optional) . 234
9.1.3.15 Deactivate SACCH. 235
9.1.3.16 Radio channel release . 236
9.1.3.17 MS power control (optional) . 237
9.1.3.18 Transmission power control (optional). 238
9.1.3.19 Connection failure . 239
9.1.3.20 Physical context request (optional) . 240
9.1.3.21 SACCH Info modify. 241
9.1.3.22 Channel request by MS. 242
9.1.3.23 Paging. 242
9.1.3.24 Delete indication. 243
9.1.3.25 CCCH load indication. 243
9.1.3.26 Broadcast information modify . 243
9.1.3.27 Immediate assignment. 244
9.1.3.28 Short Message Service Cell Broadcast (SMSCB) . 244
9.1.3.29 Radio resource indication. 244
9.1.3.30 SACCH filling information modify. 246
9.1.3.31 Flow control. 247
9.1.3.32 Error reporting. 247
10 Base transceiver station network aspects . 248
10.1 Base transceiver station network aspects functions . 248
10.1.1 General . 248
10.1.2 Transparent messages. 248
10.1.3 Non-transparent messages . 248
10.1.3.1 Link establishment indication . 249
10.1.3.1.1 SDCCH, Contention Resolution . 250
10.1.3.1.2 FACCH, Contention Resolution,
Channel Mode modify, Sapi3 . 251
10.1.3.1.3 No Contention Resolution, Normal
Case. 252
10.1.3.2 Link establishment request . 253
10.1.3.2.1 Normal Case . 253

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
10.1.3.2.2 T200 x (N200 + 1) times expiry.254
10.1.3.3 Link release indication .255
10.1.3.4 Link release request .256
10.1.3.4.1 Normal Case.256
10.1.3.4.2 T200 x (N200 + 1) times expiry.257
10.1.3.5 Transmission of transparent L3-message in
acknowledged mode.259
10.1.3.6 Reception of transparent L3-message in acknowledged
mode.260
10.1.3.7 Transmission of transparent L3-message in
unacknowledged mode.261
10.1.3.8 Reception of transparent L3-message in unacknowledged
mode.261
10.1.3.9 Link error indication .261
10.1.3.10 Channel activation .261
10.1.3.11 Channel mode modify.262
10.1.3.11.1 Normal Case.263
10.1.3.11.2 Abnormal Case .263
10.1.3.12 Handover detection.264
10.1.3.12.1 Non-synchronized case .264
10.1.3.12.2 Synchronized case.266
10.1.3.13 Start of encryption.267
10.1.3.13.1 Ciphering mode complete.267
10.1.3.13.2 DTAP message.269
10.1.3.13.3 Start of encryption with unavailable
algorithm .270
10.1.3.13.4 Stop ciphering.271
10.1.3.13.5 Failure case .272
10.1.3.14 Measurement reporting .273
10.1.3.14.1 Basic measurement reporting.273
10.1.3.14.2 Pre-processed measurement
reporting (optional).274
10.1.3.14.3 Pre-processing configuration
(optional).274
10.1.3.15 Deactivate SACCH .275
10.1.3.16 Radio channel release.275
10.1.3.17 MS power control.276
10.1.3.18 Transmission power control (optional).277
10.1.3.19 Connection failure.278
10.1.3.20 Physical context request (optional).279
10.1.3.21 Channel request by MS .279
10.1.3.22 Paging.280
10.1.3.23 Delete indication .282
10.1.3.24 CCCH load indication .282
10.1.3.25 Broadcast information modify.282
10.1.3.26 Immediate assignment .284
10.1.3.26.1 Normal case.284
10.1.3.26.2 Extended immediate assignment
procedure.285
10.1.3.26.3 Reject immediate assignment
procedure.286
10.1.3.27 Short Message Service Cell Broadcast (SMSCB).287
10.1.3.27.1 SMS broadcast request .287
10.1.3.27.2 SMS broadcast command .288
10.1.3.28 Radio resource indication .288
10.1.3.29 SACCH filling information modify .289
10.1.3.30 Flow control .290
10.1.3.31 Error reporting.291
11 GSM Phases interworking.292
11.1 Interworking between phase 1 mobile and phase 2 network.292
11.2 Interworking between phase 2 mobile and phase 1 network.292
11.2.1 Scope .292

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ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
11.2.2 References . 292
11.2.3 Radio Interface . 292
11.2.3.1 Information Elements. 292
11.2.3.1.1 Mobile Classmark 1. 292
11.2.3.1.1.1 Revision Level. 292
11.2.3.1.1.1.1 Location updating - revision level 00. 293
11.2.3.1.1.1.2 Location updating - revision level 01. 293
11.2.3.1.1.1.3 Location updating - revision level 10. 294
11.2.3.1.1.1.4 Location updating - revision level 11. 295
11.2.3.1.1.2 Encryption algorithm A5/1 . 296
11.2.3.1.1.2.1 Location updating - encryption
algorithm A5/1 . 296
11.2.3.1.2 Mobile classmark 2 . 296
11.2.3.1.2.1 Revision level . 296
11.2.3.1.2.1.1 CM Service - revision level 00. 297
11.2.3.1.2.1.2 CM Service - revision level 01. 298
11.2.3.1.2.1.3 CM Service - revision level 10. 298
11.2.3.1.2.1.4 CM Service - revision level 11. 299
11.2.3.1.2.2 Encryption algorithm A5/1 . 300
11.2.3.1.2.2.1 CM Service - encryption algorithm
A5/1. 300
11.2.3.1.2.3 Frequency capability. 301
11.2.3.1.2.3.1 CM Service. 301
11.2.3.1.2.4 SS Screening Indicator. 302
11.2.3.1.2.4.1 CM Service - SS Screening Indicator
01 . 302
11.2.3.1.2.4.2 CM Service - SS Screening Indicator
10 . 303
11.2.3.1.2.4.3 CM Service - SS Screening Indicator
11 . 303
11.2.3.1.2.5 PS Capability. 304
11.2.3.1.2.5.1 CM Service - PS Capability . 304
11.2.3.1.2.6 Encryption Algorithm A5/2, A5/3 . 305
11.2.3.1.2.6.1 CM Service - Encryption Algorithm
A5/2. 305
11.2.3.1.2.6.2 CM Service - Encryption Algorithm
A5/3. 306
11.2.3.1.2.6.3 CM Service - Encryption Algorithm
A5/2, A5/3. 307
11.2.3.1.3 Location Updating Type . 308
11.2.3.1.3.1 Location Updating - Location -
Updating Type. 308
11.2.3.2 Radio Resource Procedures. 309
11.2.3.2.1 Assignment Procedure. 309
11.2.3.2.1.1 Assignment Failure - RR cause 09 . 309
11.2.3.2.1.2 Assignment Failure - RR cause 0A. 310
11.2.3.2.2 Handover Procedure . 311
11.2.3.2.2.1 Handover Failure - RR cause 09. 311
11.2.3.2.2.2 Handover Failure - RR cause 0A . 312
11.2.3.3 Transmission Mode Change. 314
11.2.3.3.1 Channel Mode Modify . 314
11.2.3.4 Messages. 315
11.2.3.4.1 Classmark Change. 315
11.2.3.4.1.1 Mobile Station Classmark 3 . 315
11.2.4 Abis-interface. 316
11.2.5 A-interface . 316
Annex A (informative): Change history. 317
History. 318

Page 11
ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
Foreword
This European Telecommunication Standard (ETS) has been produced by the Special Mobile Group
(SMG) of the European Telecommunications Standards Institute (ETSI).
This ETS describes the signalling tests for the Base Station System (BSS) within the digital cellular
telecommunications system (Phase 2).
Transposition dates
Date of adoption of this ETS: 23 October 1998
Date of latest announcement of this ETS (doa): 31 January 1999
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 July 1999
Date of withdrawal of any conflicting National Standard (dow): 31 July 1999

Page 12
ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
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Page 13
ETS 300 609-2 (GSM 11.23 version 4.9.1): October 1998
1 Scope
This European Telecommunication Standard (ETS) contains the signalling aspects of the Base Station
System for GSM. The set of signalling tests cover major areas of functionality on the air, Abis and
A-interfaces, but is not designed to be a complete set of all the possible scenarios.
The tests were designed from the set of core specifications that exist for the GSM network and any
changes that occur these specifications will be reflected in the test set documented within.
2 Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this specification only when incorporated in it by the amendment or revision. For undated
references, the latest edition of the publication referred to applies.
[1] ETR 100 (GSM 01.04): "Digital cellular telecommunications system (Phase 2);
Abbreviations and acronyms".
[2] ETS 300 521 (GSM 03.01): "Digital cellular telecommunications system
(Phase 2); Network functions".
[3] ETS 300 555 (GSM 04.06): "Digital cellular telecommunications system
(Phase 2); Mobile Station - Base Station System (MS - BSS) interface Data Link
(DL) layer specification".
[4] ETS 300 557 (GSM 04.08): "Digital cellular telecommunications system
(Phase 2); Mobile radio interface layer 3 specification".
[5] ETS 300 560 (GSM 04.12): "Digital cellular telecommunications system
(Phase 2); Short Message Service Cell Broadcast (SMSCB) support on the
mobile radio interface".
[6] ETS 300 574 (GSM 05.02): "Digital cellular telecommunications system
(Phase 2); Multiplexing and multiple access on the radio path".
[7] ETS 300 577 (GSM 05.05): "Digital cellular telecommunications system
(Phase 2); Radio transmission and reception".
[8] ETS 300 587-2 (GSM 08.02): "Digital cellular telecommunications system
(Phase 2); Base Station System - Mobile-services Switching Centre (BSS -
MSC) interface; Interface Principles".
[9] ETS 300 589 (GSM 08.06): "Digital cellular telecommunications system
(Phase 2); Signalling transport mechanism specification for the Base Station
System - Mobile-services Switching Centre (BSS - MSC) interface".
[10] ETS 300 590 (GSM 08.08): "Digital cellular telecommunications system
(Phase 2); Mobile Switching Centre - Base Station System (MSC - BSS)
interface Layer 3 s
...