SIST EN 300 940 V6.3.1:2005

• Abstract:

  SUBJECT CC procedures for CCBS recall Messages and IEs for CCBS MM procedures for CCBS recall Structured procedures for CCBS recall Section 8 procedures for CCBS recall Call Control timers for CCBS recall Indication of CCBS possible GPRS, RR sub-layer Inclusion of GPRS session and mobility management New call state values Network controlled allocation of GPRS resource Version 6.2.0: SUBJECT Deletion of the STANDBY timer Addition of downlink single block assignment for GPRS Correction of packet downlink assignment procedure Radio priority level signalling for MO SMS Classmark split Scheduling of SI-13 MS initiated detach procedure collision handling Definition of IEI values for optional information elements Clarification of the Classmark 3 IE Various corrections to GSM 04.08 SAPI negotiation at AA PDP context activation Addition of Network Operation mode in SI 13 Clarification of the GMM cause code handling Deletion of Mac Mode in SI 13 Modification of PDP address IE coding Allows Fixed or Dynamic Access mode in one phase packet access mode for Uplink TBF Clarifications in the negotiation of the READY Timer value Pb parameter defined in SI 13 used only on PCCH misplaced

• 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
• Ref Project: ETSI EN 300 940 V6.3.1 (1999-08) - Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface layer 3 specification (GSM 04.08 version 6.3.1 Release 1997)

Overview

SIST EN 300 940 V6.3.1:2005 defines the specifications for the Mobile Radio Interface Layer 3 within the GSM (Global System for Mobile Communications) digital cellular telecommunications system, focusing on Phase 2+ enhancements. The standard, aligned with ETSI EN 300 940 v6.3.1, outlines the detailed procedures, information elements, and control mechanisms for GSM mobile and network operations, including General Packet Radio Service (GPRS) integration and mobility management. This document provides a fundamental framework for interoperability, reliability, and efficient operation in GSM-based cellular networks, supporting both traditional and packet-switched mobile services.

Key Topics

• Call Control (CC) Procedures:

  • Definitions and management of Call Completion to Busy Subscriber (CCBS) recall procedures and messages.
  • Specification of call control timers and structured recall processes to optimize call handling.

• Mobility Management (MM) Procedures:

  • Structured MM procedures for CCBS, including network and subscriber handling during recalls.
  • Enhanced session and mobility management for GPRS.
  • New call state values for improved network-state awareness.

• Radio Resource (RR) Management:

  • Procedures for channel assignment, handover, and frequency redefinition.
  • Integration and allocation of GPRS resources at the network level.
  • Support for uplink and downlink assignment, SI-13 scheduling, and packet transfer modes.

• Protocol and Timer Enhancements:

  • Removal of obsolete timers (e.g., STANDBY timer) for protocol optimization.
  • Clarifications and corrections to channel assignment and Classmark Information Elements (IEs).
  • Introduction of radio priority level signalling for mobile-originated SMS.

• Information Elements and Error Handling:

  • Management of Information Element Identifiers (IEI) for optional protocol elements.
  • Detailed guidelines for negotiation and clarification of protocol-specific parameters, such as the READY Timer and Mobile Operation Mode.

Applications

SIST EN 300 940 V6.3.1:2005 is critical for:

• Mobile Network Operators implementing GSM networks, ensuring all devices and infrastructure elements adhere to the same layer 3 signaling protocols for call setup, mobility, and resource allocation.
• Telecommunications Equipment Manufacturers developing mobile devices (mobile stations), base stations, and network elements requiring compliance with GSM specifications for seamless global interoperability.
• System Integrators and Software Developers creating GSM and GPRS signaling stacks or supporting applications, who must implement protocols according to the standard’s procedures for multimode device functionality and GPRS integration.
• Testing and Quality Assurance Teams validating GSM products to guarantee consistent network behavior, error handling, and performance in mission-critical mobile services.

Related Standards

• GSM 04.08: The foundational specification for the GSM Mobile Radio Interface Layer 3.
• ETSI EN 300 940 (all versions): European standards that address digital cellular telecommunications systems within the GSM framework.
• 3GPP TS 24.008: Successor documentation for protocol specifications involving circuit-switched and packet-switched domain call and mobility management.
• SIST EN 301 349: Related to GSM mobile communication systems, covering adjacent protocol requirements.
• EN 301 511: Addresses requirements for GSM mobile stations.

Practical Benefits

Implementing SIST EN 300 940 V6.3.1 ensures:

• Interoperable GSM and GPRS Services: Consistent communication between mobile devices and base stations across vendors.
• Enhanced Mobility and Resource Management: Standardized handover, session management, and resource allocation techniques improve service quality.
• Efficient Call Handling: Procedures for call completion, timer management, and structured error handling support reliable service delivery.
• Future-Proof Implementations: Clarified and updated protocol specifications facilitate compatibility with later GSM and GPRS advances.

This standard is essential for any organization involved in the development, deployment, and maintenance of GSM Phase 2+ telecommunications infrastructure.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface layer 3 specification (GSM 04.08 version 6.3.1 Release 1997)33.070.01Mobilni servisi na splošnoMobile services in generalICS:Ta slovenski standard je istoveten z:EN 300 940 Version 6.3.1SIST EN 300 940 V6.3.1:2005en01-februar-2005SIST EN 300 940 V6.3.1:2005SLOVENSKI
STANDARD
EN 300 940 V6.3.1 (1999-08)European Standard (Telecommunications series)Digital cellular telecommunications system (Phase 2+);Mobile radio interface layer 3 specification(GSM 04.08 version 6.3.1 Release 1997)GLOBAL SYSTEM
FOR MOBILE COMMUNICATIONSRSIST EN 300 940 V6.3.1:2005

(GSM 04.08 version 6.3.1 Release 1997)ETSI2EN 300 940 V6.3.1 (1999-08)ReferenceREN/SMG-030408Q6R1 (8pc0310o.PDF)KeywordsDigital cellular telecommunications system,Global System for Mobile communications (GSM)ETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: [phone]
Fax: [phone]Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/[e-mail] copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: [e-mail] NotificationNo 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 1999.All rights reserved.SIST EN 300 940 V6.3.1:2005

(GSM 04.08 version 6.3.1 Release 1997)ETSI3EN 300 940 V6.3.1 (1999-08)ContentsIntellectual Property Rights.26Foreword.26Introduction.260 Scope.280.1Scope of the Technical Specification.280.2Application to the interface structures.280.3Structure of layer 3 procedures.280.4Test procedures.280.5Use of logical channels.280.6Overview of control procedures.290.6.1List of procedures.290.7Applicability of implementations.310.7.1Voice Group Call Service (VGCS) and Voice Broadcast Service (VBS).310.7.2General Packet Radio Service (GPRS).321References.322Definitions and abbreviations.362.1Random values.362.2Vocabulary.363Radio Resource management procedures.373.1Overview/General.373.1.1General.373.1.2Services provided to upper layers.383.1.2.1Idle mode.383.1.2.2Dedicated mode.383.1.2.3Group receive mode.393.1.2.4Group transmit mode.393.1.2.5Packet idle mode.393.1.2.6Packet transfer mode.393.1.3Services required from data link and physical layers.403.1.4Change of dedicated channels.403.1.4.1Change of dedicated channels using SAPI = 0.403.1.4.2Change of dedicated channels using other SAPIs than 0.403.1.4.3Sequenced message transfer operation.403.1.4.3.1Variables and sequence numbers.413.1.4.3.1.2Send sequence number N(SD).413.1.4.3.2Procedures for the initiation, transfer execution and termination of the sequenced messagetransfer operation.413.1.4.3.2.2Transfer Execution.413.1.5Procedure for Service Request and Contention Resolution.413.2Idle mode procedures and general procedures in packet idle and packet transfer modes.423.2.1Mobile Station side.423.2.2Network side.423.2.2.1System information broadcasting.423.2.2.2Paging.433.3RR connection establishment.443.3.1RR connection establishment initiated by the mobile station.443.3.1.1Entering the dedicated mode : immediate assignment procedure.443.3.1.1.1Permission to access the network.443.3.1.1.2Initiation of the immediate assignment procedure.443.3.1.1.3Answer from the network.453.3.1.1.3.1On receipt of a CHANNEL REQUEST message.453.3.1.1.3.2Assignment rejection.46SIST EN 300 940 V6.3.1:2005

(GSM 04.08 version 6.3.1 Release 1997)ETSI4EN 300 940 V6.3.1 (1999-08)3.3.1.1.4Assignment completion.463.3.1.1.4.1Early classmark sending.473.3.1.1.4.2GPRS suspension procedure.473.3.1.1.5Abnormal cases.473.3.1.2Entering the group transmit mode: uplink access procedure.483.3.1.2.1Mobile station side.483.3.1.2.1.1Uplink investigation procedure.483.3.1.2.1.2Uplink access procedure.483.3.1.2.2Network side.493.3.1.2.3Abnormal cases.493.3.1.3Dedicated mode and GPRS.493.3.2Paging procedure for RR connection establishment.503.3.2.1Paging initiation by the network.503.3.2.1.1Paging initiation using paging subchannel on CCCH.503.3.2.1.2Paging initiation using paging subchannel on PCCCH.513.3.2.1.3Paging initiation using PACCH.513.3.2.2Paging response.523.3.2.3Abnormal cases.523.3.3Notification procedure.523.3.3.1Notification of a call.523.3.3.2Joining a VGCS or VBS call.533.3.3.3Reduced NCH monitoring mechanism.533.4Procedures in dedicated mode and in group transmit mode.543.4.1SACCH procedures.543.4.1.1General.543.4.1.2Measurement report.553.4.1.3Extended measurement report $(MAFA)$.553.4.2Transfer of messages and link layer service provision.563.4.3Channel assignment procedure.563.4.3.1Channel assignment initiation.563.4.3.2Assignment completion.573.4.3.3Abnormal cases.583.4.4Handover procedure.583.4.4.1Handover initiation.593.4.4.2Physical channel establishment.603.4.4.2.1Finely synchronized cell case.603.4.4.2.2Non synchronized cell case.603.4.4.2.3Pseudo-synchronized cell case.613.4.4.2.4Pre-synchronized cell case.613.4.4.3Handover completion.623.4.4.4Abnormal cases.623.4.5Frequency redefinition procedure.633.4.5.1Abnormal cases.633.4.6Channel mode modify procedure.633.4.6.1Normal channel mode modify procedure.643.4.6.1.1Initiation of the channel mode modify procedure.643.4.6.1.2Completion of channel mode modify procedure.643.4.6.1.3Abnormal cases.643.4.6.2Channel mode modify procedure for a voice group call talker.643.4.6.2.1Initiation of the channel mode modify procedure.643.4.6.2.2Completion of mode change procedure.653.4.6.2.3Abnormal cases.653.4.7Ciphering mode setting procedure.653.4.7.1Ciphering mode setting initiation.653.4.7.2Ciphering mode setting completion.653.4.8Additional channel assignment procedure.663.4.8.1Additional assignment procedure initiation.663.4.8.2Additional assignment procedure completion.663.4.8.3Abnormal cases.663.4.9Partial channel release procedure.66SIST EN 300 940 V6.3.1:2005

(GSM 04.08 version 6.3.1 Release 1997)ETSI5EN 300 940 V6.3.1 (1999-08)3.4.9.1Partial release procedure initiation.673.4.9.2Abnormal cases.673.4.10Classmark change procedure.673.4.11Classmark interrogation procedure.673.4.11.1Classmark interrogation initiation.673.4.11.2Classmark interrogation completion.673.4.12Indication of notifications and paging information.683.4.13RR connection release procedure.683.4.13.1Normal release procedure.683.4.13.1.1Channel release procedure initiation in dedicated mode and in group transmit mode.683.4.13.1.2Abnormal cases.693.4.13.2Radio link failure in dedicated mode.693.4.13.2.1Mobile side.703.4.13.2.2Network side.703.4.13.3RR connection abortion in dedicated mode.703.4.13.4Uplink release procedure in group transmit mode.703.4.13.5Radio link failure in group transmit mode.703.4.13.5.1Mobile side.713.4.13.5.2Network side.713.4.14Receiving a RR STATUS message by a RR entity.713.4.15Group receive mode procedures.713.4.15.1Mobile station side.713.4.15.1.1Reception of the VGCS or VBS channel.713.4.15.1.2Monitoring of downlink messages and related procedures.723.4.15.1.2.1Spare.723.4.15.1.2.2Spare.723.4.15.1.2.3Channel mode modify procedure.723.4.15.1.2.4Notification and paging information.723.4.15.1.2.4.1Use of Reduced NCH monitoring.723.4.15.1.2.5Uplink status messages.733.4.15.1.2.6Channel release message.733.4.15.1.2.7Information on paging channel restructuring.733.4.15.1.3Uplink reply procedure.733.4.15.1.4Leaving the group receive mode.733.4.15.2Network side.743.4.15.2.1Provision of messages on the VGCS or VBS channel downlink.743.4.15.2.2Release of the VGCS or VBS Channels.753.4.15.3Failure cases.753.4.16Configuration change procedure.753.4.16.1Configuration change initiation.753.4.16.2Configuration change completion.753.4.16.3Abnormal cases.753.4.17Mapping of user data substreams onto timeslots in a multislot configuration.763.4.18Handling of classmark information at band change.763.4.19Assignment to a Packet Data channel.763.4.19.1Assignment to PDCH initiation.773.4.19.2Completion of the Assignment to PDCH procedure.783.4.19.3Abnormal cases.783.4.20RR-Network Commanded Cell Change Order.783.4.20.1RR-network commanded cell change order initiation.793.4.20.2Network controlled cell reselection completion.793.4.20.3Abnormal cases.793.5RR procedures on CCCH related to temporary block flow establishment.803.5.1Packet paging procedure using CCCH.803.5.1.1Packet paging initiation by the network.803.5.1.2On receipt of a packet paging request.813.5.2Packet access procedure using CCCH.813.5.2.1Entering the packet transfer mode: packet access procedure.813.5.2.1.1Permission to access the network.813.5.2.1.2Initiation of the packet access procedure: channel request.81SIST EN 300 940 V6.3.1:2005

(GSM 04.08 version 6.3.1 Release 1997)ETSI6EN 300 940 V6.3.1 (1999-08)3.5.2.1.3Packet immediate assignment.823.5.2.1.4Packet access completion.853.5.2.1.5Abnormal cases.853.5.2.2Sending an RLC/MAC control message: single block packet access procedure.853.5.3Packet downlink assignment procedure using CCCH.853.5.3.1Entering the packet transfer mode: packet downlink assignment procedure.853.5.3.1.2Initiation of the packet downlink assignment procedure.863.5.3.1.3Packet downlink assignment completion.873.5.3.1.4Abnormal cases.873.5.3.2Sending an RLC/MAC control message: single block packet downlink assignment procedure.884Elementary procedures for Mobility Management.884.1General.884.1.1Type of MM and GMM procedures.894.1.2MM sublayer states.904.1.2.1MM sublayer states in the mobile station.904.1.2.1.1Main states.904.1.2.1.2Substates of the MM IDLE state.944.1.2.2The update Status.954.1.2.3MM sublayer states on the network side.964.1.3GPRS mobility management (GMM) sublayer states.974.1.3.1GMM states in the MS.974.1.3.1.1Main states.974.1.3.1.1.1GMM-NULL.974.1.3.1.1.2GMM-DEREGISTERED.974.1.3.1.1.3GMM-REGISTERED-INITIATED.974.1.3.1.1.4GMM-REGISTERED.984.1.3.1.1.5GMM-DEREGISTERED-INITIATED.984.1.3.1.2.5GMM-DEREGISTERED.NO-IMSI.984.1.3.1.2.6GMM-DEREGISTERED.NO-CELL-AVAILABLE.984.1.3.1.2.7GMM-DEREGISTERED.PLMN-SEARCH.984.1.3.1.3Substates of state GMM-REGISTERED.994.1.3.1.3.1GMM-REGISTERED.NORMAL-SERVICE.994.1.3.1.3.2GMM-REGISTERED.SUSPENDED.994.1.3.1.3.3GMM-REGISTERED.UPDATE-NEEDED.994.1.3.1.3.4GMM-REGISTERED.ATTEMPTING-TO-UPDATE.994.1.3.1.3.5GMM-REGISTERED.NO-CELL-AVAILABLE.994.1.3.2GPRS update status.1004.1.3.3GMM mobility management states on the network side.1014.1.3.3.1Main States.1014.1.3.3.1.1GMM-DEREGISTERED.1014.1.3.3.1.2GMM-COMMON-PROCEDURE-INITIATED.1014.1.3.3.1.3GMM-REGISTERED.1014.1.3.3.1.4GMM-DEREGISTERED-INITIATED.1014.1.3.3.2Substates of state GMM-REGISTERED.1024.1.3.3.2.1GMM-REGISTERED.NORMAL-SERVICE.1024.1.3.3.2.2GMM-REGISTERED.SUSPENDED.1024.2Behaviour of the MS in MM Idle state, GMM-DEREGISTERED state and GMM-REGISTERED state.1024.2.1Primary Service State selection.1034.2.1.1Selection of the Service State after Power On.1034.2.1.2Other Cases.1034.2.2Detailed Description of the MS behaviour in MM IDLE State.1044.2.2.1Service State, NORMAL SERVICE.1044.2.2.2Service State, ATTEMPTING TO UPDATE.1044.2.2.3Service State, LIMITED SERVICE.1054.2.2.4Service State, NO IMSI.1054.2.2.5Service State, SEARCH FOR PLMN, NORMAL SERVICE.1064.2.2.6Service State, SEARCH FOR PLMN.1064.2.2.7Service State, RECEIVING GROUP CALL (NORMAL SERVICE).1064.2.2.8Service State, RECEIVING GROUP CALL (LIMITED SERVICE).1074.2.3Service state when back to state MM IDLE from another state.107SIST EN 300 940 V6.3.1:2005

(GSM 04.08 version 6.3.1 Release 1997)ETSI7EN 300 940 V6.3.1 (1999-08)4.2.4Behaviour in state GMM-DEREGISTERED.1084.2.4.1Primary substate selection.1084.2.4.1.1Selection of the substate after power on or enabling the MS’s GPRS capability.1084.2.4.1.2Other Cases.1094.2.4.2Detailed description of the MS behaviour in state GMM-DEREGISTERED.1094.2.4.2.1Substate, NORMAL-SERVICE.1094.2.4.2.2Substate, ATTEMPTING-TO-ATTACH.1094.2.4.2.3Substate, LIMITED-SERVICE.1094.2.4.2.4Substate, NO-IMSI.1094.2.4.2.5Substate, NO-CELL.1094.2.4.2.6Substate, PLMN-SEARCH.1104.2.4.2.7Substate, ATTACH-NEEDED.1104.2.4.3Substate when back to state GMM-DEREGISTERED from another GMM state.1104.2.5Behaviour in state GMM-REGISTERED.1104.2.5.1Detailed description of the MS behaviour in state GMM-REGISTERED.1104.2.5.1.1Substate, NORMAL-SERVICE.1104.2.5.1.2Substate, SUSPENDED.1114.2.5.1.3Substate, UPDATE-NEEDED.1114.2.5.1.4Substate, ATTEMPTING-TO-UPDATE.1114.2.5.1.5Substate, NO-CELL-AVAILABLE.1114.2.5.1.6Substate, LIMITED-SERVICE.1114.3MM common procedures.1114.3.1TMSI reallocation procedure.1124.3.1.1TMSI reallocation initiation by the network.1124.3.1.2TMSI reallocation completion by the mobile station.1124.3.1.3TMSI reallocation completion in the network.1124.3.1.4Abnormal cases.1124.3.2Authentication procedure.1134.3.2.1Authentication request by the network.1134.3.2.2Authentication response by the mobile station.1134.3.2.3Authentication processing in the network.1144.3.2.4Ciphering key sequence number.1144.3.2.5Unsuccessful authentication.1144.3.2.6Abnormal cases.1154.3.3Identification procedure.1154.3.3.1Identity request by the network.1154.3.3.2Identification response by the mobile station.1154.3.3.3Abnormal cases.1154.3.4IMSI detach procedure.1164.3.4.1IMSI detach initiation by the mobile station.1164.3.4.2IMSI detach procedure in the network.1164.3.4.3IMSI detach completion by the mobile station.1164.3.4.4Abnormal cases.1174.3.5Abort procedure.1174.3.5.1Abort procedure initiation by the network.1174.3.5.2Abort procedure in the mobile station.1174.3.6MM information procedure.1174.3.6.1MM information procedure initiation by the network.1174.3.6.2MM information procedure in the mobile station.1174.4MM specific procedures.1184.4.1Location updating procedure.1184.4.2Periodic updating.1194.4.3IMSI attach procedure.1204.4.4Generic Location Updating procedure.1204.4.4.1Location updating initiation by the mobile station.1204.4.4.1aNetwork Request for Additional mobile station Capability Information.1204.4.4.2Identification request from the network.1204.4.4.3Authentication by the network.1204.4.4.4Ciphering mode setting by the network.1204.4.4.5Attempt Counter.120SIST EN 300 940 V6.3.1:2005

(GSM 04.08 version 6.3.1 Release 1997)ETSI8EN 300 940 V6.3.1 (1999-08)4.4.4.6Location updating accepted by the network.1214.4.4.7Location updating not accepted by the network.1214.4.4.8Release of RR connection after location updating.1224.4.4.9Abnormal cases on the mobile station side.1224.4.4.10Abnormal cases on the network side.1234.5Connection management sublayer service provision.1244.5.1MM connection establishment.1244.5.1.1MM connection establishm
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