SIST EN 300 940 V7.7.1:2005

• Abstract:

  CRs SMG#31bis, TSG#7

• Status: Published
• Publication Date: 31-Jan-2005
• ICS: 33.070.01 - Mobile services in general
• Technical Committee: RES - Radio equipment and systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Feb-2005
• Due Date: 01-Feb-2005
• Completion Date: 01-Feb-2005
• Mandate: M 275
• Ref Project: ETSI EN 300 940 V7.7.1 (2000-10) - Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface layer 3 specification (GSM 04.08 version 7.7.1 Release 1998)

SIST EN 300 940 V7.7.1:2005 is the Slovenian version of EN 300 940 Version 7.7.1 for the GSM mobile radio interface layer 3. It specifies the Layer 3 procedures, message contents and information element coding used between a GSM mobile station and the network, covering radio resource management, mobility management, circuit-switched call control and packet services.

The standard is written for GSM implementations that need to exchange, interpret and generate Layer 3 signalling correctly on the air interface. In practice, it is the reference for protocol design, interoperability testing and conformance work on mobile station and network equipment.

What does SIST EN 300 940 V7.7.1:2005 specify?

SIST EN 300 940 V7.7.1:2005 specifies the GSM mobile radio interface layer 3. Clause 0 sets the scope around interface structures, the structure of Layer 3 procedures, test procedures, use of logical channels, an overview of control procedures, and the applicability of implementations including VGCS, VBS and GPRS.

The document is organized into clauses 0 to 11, followed by annexes that add compatibility rules, coding examples, cause values, an algorithm, and information element lists.

Annex	What it covers
B	Compatibility checking on the calling side and called side
C	Principles for placing information and the relationship between bearer capability and low layer compatibility
D	Coding examples for speech, modem access and group 3 facsimile
G	Additional cause codes, including MS identification, subscription options, PLMN-specific failures, congestion and GMM causes
H	Call control cause values grouped by cause class
I	Causes related to the nature of request and invalid messages
J	A general principle, performance, encoding, decoding and a detailed example
K	Lists of common, RR, MM and CC information elements

Clause 3 covers Radio Resource management procedures, Clause 4 covers Mobility Management, Clause 5 covers circuit-switched Call Control, Clause 6 covers packet services, Clause 7 gives structured procedure examples, Clause 8 handles unknown and erroneous protocol data, Clause 9 defines message contents, Clause 10 defines general message format and information element coding, and Clause 11 lists system parameters such as timers and counters.

What are the key requirements of SIST EN 300 940 V7.7.1:2005?

SIST EN 300 940 V7.7.1:2005 defines the signalling behaviour that a mobile station and the network must follow for access, mobility, calls and packet data. The practical value of the standard is that it fixes the message sequence, state transitions and coding needed for interoperability.

Radio Resource management in Clause 3

Clause 3 defines RR service in idle mode, dedicated mode, group receive mode, group transmit mode, packet idle mode and packet transfer mode. It also covers the services expected from the data link and physical layers.

This matters because a GSM implementation must move cleanly between idle, dedicated and packet-related states without losing control of the radio link.

Clause 3 also specifies network access and connection establishment procedures such as service request and contention resolution, immediate assignment, paging, notification, uplink access, packet access, packet downlink assignment and single-block packet access.

This tells implementers how a mobile station asks for access and how the network grants it, rejects it or redirects it.

Mobility Management and GPRS mobility in Clause 4

Clause 4 defines MM and GMM states on both the mobile station side and the network side, including service states such as NORMAL SERVICE, LIMITED SERVICE, NO IMSI and PLMN SEARCH, and GMM states such as GMM-DEREGISTERED and GMM-REGISTERED.

This is the part that controls how the device knows where it is registered, what service it can use, and when it must update its location.

Clause 4 also covers TMSI reallocation, authentication, identification, IMSI detach, abort, MM information, location updating, periodic updating and IMSI attach. For GPRS, it adds GPRS attach, GPRS detach, routing area updating, P-TMSI reallocation, authentication and ciphering, identification, paging, anonymous access support and GMM Information.

In practice, these procedures are what keep subscriber identity, location and packet service registration aligned between the mobile station and the network.

Call control in Clause 5

Clause 5 defines the elementary procedures for circuit-switched Call Control, including mobile originating call establishment, mobile terminating call establishment, call state handling, traffic channel assignment, queuing, clearing, call re-establishment, prolonged clearing and DTMF protocol control.

This matters for voice calls and other circuit-switched services because it specifies how calls are set up, maintained, interrupted and released.

Clause 5 also covers active-state signalling such as user notification, call rearrangements, support of Dual Services and user-initiated service level up- and downgrading.

That gives engineers the signalling rules for advanced call handling and for changing service levels during an active call.

Packet services in Clause 6

Clause 6 specifies GPRS Session Management, including session management states and the procedures for PDP context activation, modification and deactivation. It also covers AA PDP context activation and deactivation.

This is the part that controls packet data session setup and release, so it is central for devices that carry user data over GPRS.

Error handling, message definitions and timers

Clause 8 defines how to handle unknown, unforeseen and erroneous protocol data, including unknown transaction identifiers, unknown message types, mandatory information element errors and semantically incorrect contents.

This is important because real networks and devices must remain interoperable even when a message is unexpected or partly wrong.

Clause 9 defines the functional content of the messages for RR, MM, CC, GPRS Mobility Management and GPRS Session Management. Clause 10 then defines the general message format and the coding of the information elements used by those messages.

Clause 11 lists the timers and counters used by RR, MM, GMM, Session Management and Circuit-switched Call Control. In practice, these timers control waiting periods, retries and state transitions.

What terms does SIST EN 300 940 V7.7.1:2005 define?

• Global System for Mobile communications (GSM) - The digital cellular system covered by the standard.
• Radio Resource (RR) - The part of the protocol that manages radio access, channel assignment, handover and release.
• Mobility Management (MM) - The part that handles location, identity and registration procedures.
• GPRS Mobility Management (GMM) - The mobility procedures used for GPRS services.
• Session Management (SM) - The part that controls packet data sessions such as PDP context activation and deactivation.
• Voice Group Call Service (VGCS) - The group-call service covered by the RR procedures and message definitions.
• Voice Broadcast Service (VBS) - The broadcast-call service covered by the RR procedures and message definitions.
• General Packet Radio Service (GPRS) - The packet service mode included alongside circuit-switched GSM procedures.

Who uses SIST EN 300 940 V7.7.1:2005?

SIST EN 300 940 V7.7.1:2005 is used by GSM mobile station and network equipment designers, protocol implementers, and conformance test engineers. It is also used by quality managers and buyers who need to check that equipment supports the required radio resource, mobility, call control and packet procedures.

In practice, it supports work on mobile stations, base station and network-side signalling, interoperability testing, and investigation of protocol traces when a call, location update or packet session fails.

What does the SIST EN 300 940 V7.7.1:2005 document contain?

The document contains detailed procedure descriptions for RR, MM, CC, GMM and SM, plus structured examples in Clause 7. Those examples include immediate assignment, service request and contention resolution, ciphering mode setting, channel mode modify, mobile originating and mobile terminating call establishment, DTMF protocol control, call re-establishment and network initiated mobile originating call (CCBS).

It also contains the functional definitions of messages in Clause 9 and the coding of the related information elements in Clause 10. That makes the standard useful not only for understanding behaviour, but also for building and checking the actual bits on the air interface.

Annexes B, C, D, G, H, I, J and K add compatibility checking, coding examples, cause values, an algorithm description and information element listings. Together, they support implementation, testing and troubleshooting when a protocol exchange needs to be decoded or validated.

SLOVENSKI STANDARD
01-februar-2005
'LJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D9PHVQLN]DPRELOQLUDGLR
6SHFLILNDFLMDWUHWMHSODVWL*60UD]OLþLFDL]GDMD
Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface
layer 3 specification (GSM 04.08 version 7.7.1 Release 1998)
Ta slovenski standard je istoveten z: EN 300 940 Version 7.7.1
ICS:
33.070.01 Mobilni servisi na splošno Mobile services in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)
Digital cellular telecommunications system (Phase 2+);
Mobile radio interface layer 3 specification
(GSM 04.08 version 7.7.1 Release 1998)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
2 ETSI EN 300 940 V7.7.1 (2000-10)
(GSM 04.08 version 7.7.1 Release 1998)
Reference
REN/TSGN-010408Q7R3
Keywords
Digital cellular telecommunications system,
Global System for Mobile communications (GSM)
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.:[phone] Fax:[phone]
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at http://www.etsi.org/tb/status/
If you find errors in the present document, send your comment to:
[e-mail]
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 2000.
All rights reserved.
ETSI
3 ETSI EN 300 940 V7.7.1 (2000-10)
(GSM 04.08 version 7.7.1 Release 1998)
Contents
Intellectual Property Rights.27
Foreword.27
Introduction .28
0 Scope .29
0.1 Scope of the Technical Specification .29
0.2 Application to the interface structures.29
0.3 Structure of layer 3 procedures.29
0.4 Test procedures .29
0.5 Use of logical channels.30
0.6 Overview of control procedures .30
0.6.1 List of procedures .30
0.7 Applicability of implementations .32
0.7.1 Voice Group Call Service (VGCS) and Voice Broadcast Service (VBS).33
0.7.2 General Packet Radio Service (GPRS) .33
1 References .34
2 Definitions and abbreviations.37
2.1 Random values .37
2.2 Vocabulary .38
3 Radio Resource management procedures.39
3.1 Overview/General .39
3.1.1 General.39
3.1.2 Services provided to upper layers .39
3.1.2.1 Idle mode .39
3.1.2.2 Dedicated mode.40
3.1.2.3 Group receive mode .40
3.1.2.4 Group transmit mode.40
3.1.2.5 Packet idle mode .41
3.1.2.6 Packet transfer mode.41
3.1.3 Services required from data link and physical layers.41
3.1.4 Change of dedicated channels.41
3.1.4.1 Change of dedicated channels using SAPI = 0.41
3.1.4.2 Change of dedicated channels using other SAPIs than 0 .41
3.1.4.3 Sequenced message transfer operation.42
3.1.4.3.1 Variables and sequence numbers.42
3.1.4.3.1.2 Send sequence number N(SD) .42
3.1.4.3.2 Procedures for the initiation, transfer execution and termination of the sequenced message
transfer operation.42
3.1.4.3.2.2 Transfer Execution.42
3.1.5 Procedure for Service Request and Contention Resolution .42
3.1.6 Preemption.43
3.2 Idle mode procedures and general procedures in packet idle and packet transfer modes.44
3.2.1 Mobile Station side .44
3.2.2 Network side.45
3.2.2.1 System information broadcasting.45
3.2.2.2 Paging .46
3.3 RR connection establishment .46
3.3.1 RR connection establishment initiated by the mobile station .46
3.3.1.1 Entering the dedicated mode : immediate assignment procedure .46
3.3.1.1.1 Permission to access the network .46
3.3.1.1.2 Initiation of the immediate assignment procedure.47
3.3.1.1.3 Answer from the network.48
3.3.1.1.3.1 On receipt of a CHANNEL REQUEST message .48
3.3.1.1.3.2 Assignment rejection .49
ETSI
4 ETSI EN 300 940 V7.7.1 (2000-10)
(GSM 04.08 version 7.7.1 Release 1998)
3.3.1.1.4 Assignment completion .49
3.3.1.1.4.1 Early classmark sending .49
3.3.1.1.4.2 GPRS suspension procedure .50
3.3.1.1.5 Abnormal cases .50
3.3.1.2 Entering the group transmit mode: uplink access procedure.50
3.3.1.2.1 Mobile station side .51
3.3.1.2.1.1 Uplink investigation procedure.51
3.3.1.2.1.2 Uplink access procedure .51
3.3.1.2.2 Network side.52
3.3.1.2.3 Abnormal cases .52
3.3.1.3 Dedicated mode and GPRS.52
3.3.2 Paging procedure for RR connection establishment .52
3.3.2.1 Paging initiation by the network .52
3.3.2.1.1 Paging initiation using paging subchannel on CCCH.53
3.3.2.1.2 Paging initiation using paging subchannel on PCCCH .54
3.3.2.1.3 Paging initiation using PACCH.54
3.3.2.2 Paging response.54
3.3.2.3 Abnormal cases .54
3.3.3 Notification procedure .55
3.3.3.1 Notification of a call.55
3.3.3.2 Joining a VGCS or VBS call.55
3.3.3.3 Reduced NCH monitoring mechanism.56
3.3.3.4 Notification response procedure.57
3.4 Procedures in dedicated mode and in group transmit mode .57
3.4.1 SACCH procedures.57
3.4.1.1 General.57
3.4.1.2 Measurement report .58
3.4.1.3 Extended measurement report $(MAFA)$.58
3.4.2 Transfer of messages and link layer service provision .58
3.4.3 Channel assignment procedure .59
3.4.3.1 Channel assignment initiation .59
3.4.3.2 Assignment completion.60
3.4.3.3 Abnormal cases .61
3.4.4 Handover procedure.61
3.4.4.1 Handover initiation.62
3.4.4.2 Physical channel establishment.63
3.4.4.2.1 Finely synchronized cell case .64
3.4.4.2.2 Non synchronized cell case .64
3.4.4.2.3 Pseudo-synchronized cell case .64
3.4.4.2.4 Pre-synchronized cell case.65
3.4.4.3 Handover completion.65
3.4.4.4 Abnormal cases .65
3.4.5 Frequency redefinition procedure .66
3.4.5.1 Abnormal cases .67
3.4.6 Channel mode modify procedure.67
3.4.6.1 Normal channel mode modify procedure.67
3.4.6.1.1 Initiation of the channel mode modify procedure.67
3.4.6.1.2 Completion of channel mode modify procedure .67
3.4.6.1.3 Abnormal cases .68
3.4.6.2 Channel mode modify procedure for a voice group call talker .68
3.4.6.2.1 Initiation of the channel mode modify procedure.68
3.4.6.2.2 Completion of mode change procedure.68
3.4.6.2.3 Abnormal cases .68
3.4.7 Ciphering mode setting procedure .68
3.4.7.1 Ciphering mode setting initiation.68
3.4.7.2 Ciphering mode setting completion .69
3.4.8 Additional channel assignment procedure .69
3.4.8.1 Additional assignment procedure initiation .70
3.4.8.2 Additional assignment procedure completion.70
3.4.8.3 Abnormal cases .70
3.4.9 Partial channel release procedure.70
3.4.9.1 Partial release procedure initiation.70
ETSI
5 ETSI EN 300 940 V7.7.1 (2000-10)
(GSM 04.08 version 7.7.1 Release 1998)
3.4.9.2 Abnormal cases .70
3.4.10 Classmark change procedure .71
3.4.11 Classmark interrogation procedure .71
3.4.11.1 Classmark interrogation initiation.71
3.4.11.2 Classmark interrogation completion .71
3.4.12 Indication of notifications and paging information.71
3.4.13 RR connection release procedure.71
3.4.13.1 Normal release procedure .71
3.4.13.1.1 Channel release procedure initiation in dedicated mode and in group transmit mode .72
3.4.13.1.2 Abnormal cases .73
3.4.13.2 Radio link failure in dedicated mode .73
3.4.13.2.1 Mobile side.73
3.4.13.2.2 Network side.73
3.4.13.3 RR connection abortion in dedicated mode .74
3.4.13.4 Uplink release procedure in group transmit mode .74
3.4.13.5 Radio link failure in group transmit mode .74
3.4.13.5.1 Mobile side.74
3.4.13.5.2 Network side.74
3.4.14 Receiving a RR STATUS message by a RR entity.74
3.4.15 Group receive mode procedures .75
3.4.15.1 Mobile station side .75
3.4.15.1.1 Reception of the VGCS or VBS channel.75
3.4.15.1.2 Monitoring of downlink messages and related procedures.75
3.4.15.1.2.1 Spare .75
3.4.15.1.2.2 Spare .75
3.4.15.1.2.3 Channel mode modify procedure.75
3.4.15.1.2.4 Notification and paging information.75
3.4.15.1.2.4.1 Use of Reduced NCH monitoring .76
3.4.15.1.2.5 Uplink status messages .76
3.4.15.1.2.6 Channel release message.76
3.4.15.1.2.7 Information on paging channel restructuring.76
3.4.15.1.3 Uplink reply procedure.76
3.4.15.1.4 Leaving the group receive mode .77
3.4.15.2 Network side .77
3.4.15.2.1 Provision of messages on the VGCS or VBS channel downlink.77
3.4.15.2.2 Release of the VGCS or VBS Channels .78
3.4.15.3 Failure cases.78
3.4.16 Configuration change procedure.78
3.4.16.1 Configuration change initiation.79
3.4.16.2 Configuration change completion .79
3.4.16.3 Abnormal cases .79
3.4.17 Mapping of user data substreams onto timeslots in a multislot configuration.79
3.4.18 Handling of classmark information at band change.80
3.4.19 Assignment to a Packet Data channel.80
3.4.19.1 Assignment to PDCH initiation.80
3.4.19.2 Completion of the Assignment to PDCH procedure .81
3.4.19.3 Abnormal cases .81
3.4.20 RR-Network Commanded Cell Change Order .82
3.4.20.1 RR-network commanded cell change order initiation.82
3.4.20.2 Network controlled cell reselection completion.83
3.4.20.3 Abnormal cases .83
3.4.21 Application Procedures.84
3.4.21.1 General.84
3.4.21.2 Application Information Transfer .84
3.4.21.2.1 Normal Procedure without Segmentation.84
3.4.21.2.2 Normal Procedure with Segmentation.84
3.4.21.2.3 Abnormal Cases.85
3.5 RR procedures on CCCH related to temporary block flow establishment .85
3.5.1 Packet paging procedure using CCCH.85
3.5.1.1 Packet paging initiation by the network.85
3.5.1.2 On receipt of a packet paging request .86
3.5.2 Packet access procedure using CCCH .86
ETSI
6 ETSI EN 300 940 V7.7.1 (2000-10)
(GSM 04.08 version 7.7.1 Release 1998)
3.5.2.1 Entering the packet transfer mode: packet access procedure .86
3.5.2.1.1 Permission to access the network .87
3.5.2.1.2 Initiation of the packet access procedure: channel request.87
3.5.2.1.3 Packet immediate assignment.87
3.5.2.1.4 Packet access completion .90
3.5.2.1.5 Abnormal cases .90
3.5.2.2 Sending an RLC/MAC control message: single block packet access procedure .90
3.5.3 Packet downlink assignment procedure using CCCH .91
3.5.3.1 Entering the packet transfer mode: packet downlink assignment procedure.91
3.5.3.1.2 Initiation of the packet downlink assignment procedure .91
3.5.3.1.3 Packet downlink assignment completion.92
3.5.3.1.4 Abnormal cases .93
3.5.3.2 Sending an RLC/MAC control message: single block packet downlink assignment procedure.93
4 Elementary procedures for Mobility Management.93
4.1 General .93
4.1.1 MM and GMM procedures .94
4.1.1.1 Types of MM and GMM procedures .94
4.1.1.2 MM-GMM co-ordination for GPRS MS's .95
4.1.1.2.1 GPRS MS operating in mode A or B in a network that operates in mode I .95
4.1.1.2.2 GPRS MS operating in mode A or B in a network that operates in mode II or III.96
4.1.2 MM sublayer states.96
4.1.2.1 MM sublayer states in the mobile station.96
4.1.2.1.1 Main states.96
4.1.2.1.2 Substates of the MM IDLE state .100
4.1.2.2 The update Status .101
4.1.2.3 MM sublayer states on the network side.102
4.1.3 GPRS mobility management (GMM) sublayer states.103
4.1.3.1 GMM states in the MS .103
4.1.3.1.1 Main states.103
4.1.3.1.1.1 GMM-NULL .103
4.1.3.1.1.2 GMM-DEREGISTERED .103
4.1.3.1.1.3 GMM-REGISTERED-INITIATED.103
4.1.3.1.1.4 GMM-REGISTERED.104
4.1.3.1.1.5 GMM-DEREGISTERED-INITIATED .104
4.1.3.1.2.5 GMM-DEREGISTERED.NO-IMSI .104
4.1.3.1.2.6 GMM-DEREGISTERED.NO-CELL-AVAILABLE .104
4.1.3.1.2.7 GMM-DEREGISTERED.PLMN-SEARCH .104
4.1.3.1.2.8 GMM-DEREGISTERED.SUSPENDED.105
4.1.3.1.3 Substates of state GMM-REGISTERED.105
4.1.3.1.3.1 GMM-REGISTERED.NORMAL-SERVICE.105
4.1.3.1.3.2 GMM-REGISTERED.SUSPENDED.105
4.1.3.1.3.3 GMM-REGISTERED.UPDATE-NEEDED.105
4.1.3.1.3.4 GMM-REGISTERED.ATTEMPTING-TO-UPDATE.105
4.1.3.1.3.5 GMM-REGISTERED.NO-CELL-AVAILABLE.105
4.1.3.1.3.7 GMM-REGISTERED.ATTEMPTING-TO-UPDATE-MM .106
4.1.3.1.3.8 GMM-REGISTERED.IMSI-DETACH-INITIATED.106
4.1.3.2 GPRS update status.106
4.1.3.3 GMM mobility management states on the network side.107
4.1.3.3.1 Main States .107
4.1.3.3.1.1 GMM-DEREGISTERED .107
4.1.3.3.1.2 GMM-COMMON-PROCEDURE-INITIATED.107
4.1.3.3.1.3 GMM-REGISTERED.107
4.1.3.3.1.4 GMM-DEREGISTERED-INITIATED .107
4.1.3.3.2 Substates of state GMM-REGISTERED.108
4.1.3.3.2.1 GMM-REGISTERED.NORMAL-SERVICE.108
4.1.3.3.2.2 GMM-REGISTERED.SUSPENDED.108
4.2 Behaviour of the MS in MM Idle state, GMM-DEREGISTERED state and GMM-REGISTERED state .108
4.2.1 Primary Service State selection .109
4.2.1.1 Selection of the Service State after Power On.109
4.2.1.2 Other Cases .109
4.2.2 Detailed Description of the MS behaviour in MM IDLE State .110
ETSI
7 ETSI EN 300 940 V7.7.1 (2000-10)
(GSM 04.08 version 7.7.1 Release 1998)
4.2.2.1 Service State, NORMAL SERVICE.110
4.2.2.2 Service State, ATTEMPTING TO UPDATE .110
4.2.2.3 Service State, LIMITED SERVICE.111
4.2.2.4 Service State, NO IMSI.111
4.2.2.5 Service State, SEARCH FOR PLMN, NORMAL SERVICE.112
4.2.2.6 Service State, SEARCH FOR PLMN .112
4.2.2.7 Service State, RECEIVING GROUP CALL (NORMAL SERVICE) .112
4.2.2.8 Service State, RECEIVING GROUP CALL (LIMITED SERVICE) .113
4.2.3 Service state when back to state MM IDLE from another state.113
4.2.4 Behaviour in state GMM-DEREGISTERED.114
4.2.4.1 Primary substate selection.114
4.2.4.1.1 Selection of the substate after power on or enabling the MS's GPRS capability.114
4.2.4.1.2 Other Cases.114
4.2.4.2 Detailed description of the MS behaviour in state GMM-DEREGISTERED.115
4.2.4.2.1 Substate, NORMAL-SERVICE .115
4.2.4.2.2 Substate, ATTEMPTING-TO-ATTACH .115
4.2.4.2.3 Substate, LIMITED-SERVICE .115
4.2.4.2.4 Substate, NO-IMSI .115
4.2.4.2.5 Substate, NO-CELL .115
4.2.4.2.6 Substate, PLMN-SEARCH .116
4.2.4.2.7 Substate, ATTACH-NEEDED .116
4.2.4.2.8 Substate, SUSPENDED .116
4.2.4.3 Substate when back to state GMM-DEREGISTERED from another GMM state .116
4.2.5 Behaviour in state GMM-REGISTERED.116
4.2.5.1 Detailed description of the MS behaviour in state GMM-REGISTERED.117
4.2.5.1.1 Substate, NORMAL-SERVICE .117
4.2.5.1.2 Substate, SUSPENDED .117
4.2.5.1.3 Substate, UPDATE-NEEDED.117
4.2.5.1.4 Substate, ATTEMPTING-TO-UPDATE .117
4.2.5.1.5 Substate, NO-CELL-AVAILABLE .117
4.2.5.1.6 Substate, LIMITED-SERVICE .118
4.2.5.1.7 Substate, ATTEMPTING-TO-UPDATE-MM .118
4.3 MM common procedures .118
4.3.1 TMSI reallocation procedure .118
4.3.1.1 TMSI reallocation initiation by the network .118
4.3.1.2 TMSI reallocation completion by the mobile station .119
4.3.1.3 TMSI reallocation completion in the network.119
4.3.1.4 Abnormal cases .119
4.3.2 Authentication procedure.120
4.3.2.1 Authentication request by the network.120
4.3.2.2 Authentication response by the mobile station.120
4.3.2.3 Authentication processing in the network.120
4.3.2.4 Ciphering key sequence number .120
4.3.2.5 Unsuccessful authentication.120
4.3.2.6 Abnormal cases .121
4.3.3 Identification procedure.121
4.3.3.1 Identity request by the network.122
4.3.3.2 Identification response by the mobile station.122
4.3.3.3 Abnormal cases .
...