1、 ETSI TS 100 933 V8.6.0 (2005-06)Technical Specification Digital cellular telecommunications system (Phase 2+);Voice Group Call Service (VGCS);Stage 2(3GPP TS 03.68 version 8.6.0 Release 1999)GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRfloppy3 ETSI ETSI TS 100 933 V8.6.0 (2005-06) 1 3GPP TS 03.68 versio
2、n 8.6.0 Release 1999 Reference RTS/TSGC-010368v860 Keywords GSM ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88
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8、68 version 8.6.0 Release 1999 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 0
9、00 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Pol
10、icy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Tec
11、hnical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ET
12、SI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp . ETSI ETSI TS 100 933 V8.6.0 (2005-06) 3 3GPP TS 03.68 version 8.6.0 Release 1999 Contents Intellectual Property Rights2 Foreword.2 Foreword.5 1 Scope 6 2 Refe
13、rences 6 3 Definitions and abbreviations.7 3.1 Definitions7 3.2 Abbreviations .7 4 Main concepts 8 4.1 Group definition .8 4.2 Group conversations.8 4.2.1 Group call initiation8 4.2.1.1 Normal operation with successful outcome 8 4.2.1.2 Exceptional procedures .9 4.2.2 On-going group calls 9 4.2.2.1
14、Normal operation with successful outcome 9 4.2.2.2 Exceptional procedures .10 4.2.3 Leaving of a group call without termination.10 4.2.4 Group call termination10 4.2.5 Acknowledgements.10 4.2.6 Transactions between the mobile station and the network11 5 General architecture .11 5.1 Group Call Regist
15、er (GCR)11 5.2 Voice group call responsibility.12 6 Compatibility issues .12 7 Transmission 13 7.1 Transmission architecture.13 7.2 Radio channels .13 7.3 Data confidentiality 14 8 Information storage 14 8.1 Information stored in the GCR .14 8.1.1 Information used for routing of service subscriber o
16、riginated voice group calls14 8.1.2 Group call attributes14 8.1.2.1 Group call area15 8.1.2.2 Dispatcher identities15 8.1.2.3 No activity time.15 8.1.2.4 Priorities16 8.2 Information managed per subscriber 16 8.2.1 Stored in the HLR.16 8.2.2 Stored in the VLR.16 8.2.3 Stored in the SIM16 8.3 Informa
17、tion used for routing of dispatcher originated voice group calls16 9 Identities.17 9.1 Elementary identities for group calls17 9.2 Use of identities in the network17 10 Operation and maintenance aspects .18 11 Function and information flows .19 11.1 Group management 19 11.2 Group membership manageme
18、nt19 ETSI ETSI TS 100 933 V8.6.0 (2005-06) 4 3GPP TS 03.68 version 8.6.0 Release 1999 11.3 Call management19 11.3.1 Call establishment.19 11.3.1.1 Service subscriber call establishment19 11.3.1.1.1 Initial stage 19 11.3.1.1.2 Establishment of the transmission means 20 11.3.1.1.3 Release of the dedic
19、ated transmission means of the calling service subscriber.20 11.3.1.1.4 Release of the dedicated transmission means of mobile stations responding to a notification21 11.3.1.1.5 Transfer of a talking service subscriber to a dedicated connection .21 11.3.1.2 Dispatcher call establishment21 11.3.1.3 No
20、tification procedures.22 11.3.1.4 Destination service subscribers .23 11.3.1.5 Destination dispatchers .23 11.3.2 Call release24 11.3.3 Leaving of a dispatcher.24 11.3.4 Leaving and returning to a voice group call24 11.3.5 Cell change .24 11.3.5.1 Listening subscriber 24 11.3.5.2 Talking subscriber.
21、24 11.3.5.3 Dispatcher .24 11.3.6 New calls 25 11.3.7 Uplink transmission management.25 11.3.8 Overview of signalling25 11.4 Functional requirement of Anchor MSC 43 11.5 Functional requirement of Relay MSC.50 11.6 Functional requirement of GCR .58 11.7 Functional requirement of VLR .61 12 Content of
22、 messages.63 12.1 Messages on the B-interface (MSC-VLR) .63 12.1.1 Allocate Group Call Number63 12.1.2 Allocate Group Call Number ack .63 12.1.3 Allocate Group Call Number negative response.64 12.1.4 Release Group Call Number .64 12.2 Messages on the E-interface (MSC-MSC) .64 12.2.1 Prepare Group Ca
23、ll .64 12.2.2 Prepare Group Call ack.64 12.2.3 Prepare Group Call negative response64 12.2.4 Send Group Call End Signal.64 12.2.5 Forward Group Call Signalling.65 12.2.6 Process Group Call Signalling65 12.3 Messages on the I-interface (MSC-GCR) 65 12.3.1 GCR Interrogation 65 12.3.2 GCR Interrogation
24、 ack66 12.3.3 GCR interrogation negative response .67 12.3.4 Call released67 Annex A (informative): Change History 68 History 69 ETSI ETSI TS 100 933 V8.6.0 (2005-06) 5 3GPP TS 03.68 version 8.6.0 Release 1999 Foreword This Technical Specification has been produced by the 3rdGeneration Partnership P
25、roject (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in
26、version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corr
27、ections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 100 933 V8.6.0 (2005-06) 6 3GPP TS 03.68 version 8.6.0 Release 1999 1 Scope The present document specifies the stage two description of the Voice Group Call Servic
28、e (VGCS) which allows speech conversation of a predefined group of service subscribers in half duplex mode on the radio link taking into account multiple subscribers involved in the group call per cell. 2 References The following documents contain provisions which, through reference in this text, co
29、nstitute provisions of the present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. A non-specific
30、 reference to an ETS shall also be taken to refer to later versions published as an EN with the same number. For this Release 1999 document, references to GSM documents are for Release 1999 versions (version 8.x.y). 1 Void. 1a 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 02.68: “V
31、oice Group Call Service (VGCS) - stage 1“. 3 3GPP TS 03.22: “Functions related to Mobile Station (MS) in idle mode“. 4 3GPP TS 23.067: “enhanced Multi-Level Precedence and Pre-emption service (eMLPP); Stage 2“. 5 3GPP TS 24.008: “Mobile radio interface Layer 3 specification; Core network protocols;
32、Stage 3“. 6 3GPP TS 05.08: “Radio subsystem link control“. 7 3GPP TS 08.08: “Mobile Switching Centre - Base Station System (MSC - BSS) interface Layer 3 specification“. 8 CCITT Recommendation E.164: “Numbering plan for the ISDN era“. 9 3GPP TS 04.68 (ETS 100 948): “Group Call Control (GCC) protocol“
33、. 10 3GPP TS 29.002: “Mobile Application Part (MAP) specification“. 11 3GPP TS 04.18: “Mobile radio interface layer 3 specification; Radio Resource Control Protocol“. ETSI ETSI TS 100 933 V8.6.0 (2005-06) 7 3GPP TS 03.68 version 8.6.0 Release 1999 3 Definitions and abbreviations 3.1 Definitions Defi
34、nitions used in the present document are also defined in 3GPP TS 02.68. For the purposes of the present document, the following terms and definitions apply. voice group call channel: Combined uplink/downlink to be allocated in a cell of the group call area for a particular voice group call. The upli
35、nk can be used by the presently talking service subscriber only. All mobile stations of the listening service subscribers in one cell shall listen to the common downlink. group members: Service subscribers entitled to belong to a particular group classified by a certain group identification (group I
36、D). voice group call member: Any group member or dispatcher participating in an on going voice group call. group call attributes: Group call area, dispatcher identities, and the non-activity time which results in the release of the voice group call by the network. Group Call Register (GCR): A functi
37、onality in the network containing the group call attributes. group call anchor MSC: The MSC responsible for managing and maintaining a particular voice group call. The group call anchor MSC is determined as the one controlling the cells of the group call area (see also group call relay MSC). For voi
38、ce group call services where the group call area exceeds one MSC area, the group call anchor MSC is predefined in the network. group call relay MSC: MSC controlling cells of a group call area which are not under control of the group call anchor MSC for those voice group call services where the group
39、 call area exceeds one MSC area. notification: Notifications are given on common control channels or dedicated channels in order to inform group members which are either in idle mode or in dedicated mode or participating in a voice group call or voice broadcast call on the existence of voice group c
40、alls. Notification Channel (NCH): Common control channel on which the notifications are sent by the network (equivalent to a paging channel). 3.2 Abbreviations Abbreviations used in the present document are also listed in 3GPP TS 21.905. For the purposes of the present document, the following abbrev
41、iations apply: eMLPP enhanced Multi-Level Precedence and Pre-emption GCR Group Call Register NCH Notification Channel VBS Voice Broadcast Service VGCS Voice Group Call Service ETSI ETSI TS 100 933 V8.6.0 (2005-06) 8 3GPP TS 03.68 version 8.6.0 Release 1999 4 Main concepts 4.1 Group definition Servic
42、e subscribers can become group members on a PLMN wide basis to one or more groups pre-defined in the network by a corresponding group identification (group ID). The membership enables them to initiate or receive voice group calls associated with that group ID. Certain dispatchers connected to extern
43、al networks also require the capability to initiate or receive voice group calls. In addition to subscriber details in the HLR, it is necessary for the mobile station to be aware of its group membership by storing details on the SIM. This is required because it shall respond to notification messages
44、 which include only the group ID (i.e. no IMSI or TMSI details). Having become a group member, each service subscriber can set to active state or deactive state the group ID or any one out of his several group IDs on the SIM. In active state the subscriber can initiate voice group calls to that grou
45、p. When in deactive state the subscriber can not make voice group calls to the group and the mobile station ignores any notification for that group. 4.2 Group conversations 4.2.1 Group call initiation 4.2.1.1 Normal operation with successful outcome A group call area can be restricted to a single MS
46、C area or can exceed one MSC area (implementation option). A voice group call shall be initiated by a calling service subscriber by a related input function, e.g. via MMI, specifying the selected service and the group ID dialled or by a calling dispatcher by the MSISDN address (see subclause 9.2). T
47、he MSC in which a voice group call is initiated obtains (by requesting the Group Call Register (GCR, see clause 5) the group call attributes. This GCR interrogation after call initiation also determines whether the MSC shall act as anchor or as relay MSC. If the MSC is not the MSC then the call will
48、 be “forwarded“ from the relay to the respective MSC (information also delivered by GCR) and further “call-establishment“ is done by the anchor MSC as described in the following. When a calling service subscriber or calling dispatcher initiates a voice group call, one voice group call channel shall
49、be established in each cell of the group call area and notifications for that call shall be sent in each of these cells. As an alternative, voice group call channels may only be established in cells in reaction to responses received from mobile stations on the notifications. At the same time standard connections to dispatchers in the mobile network or in an external network shall be established. A voice group call channel shall consist of a combined uplink/downlink. The uplink will be used exclusively by the presently talking service subscriber
