1、3400855 0079Lbb I85 GSM 03.69 January 1996 Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-O30369Q ICs: 33.060.50 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS Digital cellular telecommunications syste
2、m (Phase 2+); Voice Broadcast Service (VBS) - Stage 2 (GSM 03.69) ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=etsi,
3、s=secretarat - Internet: secretariata etsi.fr Tel.: +33 92 94 42 O0 - Fax: +33 93 65 47 16 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. 6 European Telecommunications Stan
4、dards Institute 1996. All rights reserved. ETSI GSM*03.69 96 = 3400855 0079367 O13 = Page 2 GSM 03.69 Version 5.0.0: January 1996 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 conce
5、rning its accuracy, please write to “ETSI Editing and Committee Support Dept.“ at the address shown on the title page. ETSI GSM*03.69 96 3400855 0077368 T58 = Page 3 GSM 03.69 Version 5.0.0: January 1996 Contents Foreword . 5 1 2 3 4 5 6 7 8 9 10 Scope 7 Normative references 7 Definitions and abbrev
6、iations 8 3.1 Definitions 8 3.2 Abbreviations . 8 Main concepts . 9 4.1 Group definition 9 4.2 Broadcast process . 9 4.2.1 Broadcast call initiation 9 4.2.1.1 Normal operation with successful outcome . 9 4.2.1.2 Exceptional procedures . 10 On-going broadcast calls . 10 4.2.2.1 Normal operation with
7、successful outcome . 10 4.2.3 Leaving of a broadcast call without termination 11 4.2.4 Broadcast call termination . 11 4.2.5 Acknowledgements . 11 4.2.6 Transactions between the mobile station and the network . 11 4.2.2 4.2.2.2 Exceptional procedures . 11 General architecture 12 Group Call Register
8、(GCR) 12 5.1 5.2 Broadcast call responsibility . 13 Compatibility issues . 13 Transmission . 14 7.1 Transmission architecture 14 7.2 Radio channels 14 7.3 Data confidentiality . 14 Information storage . 14 8.1 Information stored in the GCR . 14 8.1.1 Information used for routing of service subscribe
9、r originated broadcast calls . 14 8.1.2 Broadcast call attributes 15 8.1.2.1 Service area . 15 8.1.2.3 Priorities . 16 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 SIM . 16 Information used for routing of dispatcher originated broa
10、dcast calls . 16 8.1.2.2 Dispatcher identities 15 8.2 8.3 Identities 17 9.1 9.2 Use of identities in the network 17 Elementary identities for broadcast calls . 17 Operation and maintenance aspects 18 11 Function and information flows . 19 Page 4 GSM 03.69 Version 5.0.0: January 1996 11.1 Broadcast f
11、unction management 19 11.2 Group membership management . 19 11.3 Call management 19 11.3.1 Call establishment 19 Service subscriber call establishment . 19 11.3.1.1.1 Initial stage . 19 11.3.1.1.2 Establishment of the transmission means 20 11.3.1.2 Dispatcher call establishment . 21 11.3.1.3 Notific
12、ation procedures . 21 11.3.1.4 Destination subscribers . 24 11.3.1.5 Called dispatchers . 24 11.3.2 Call release . 24 11.3.3 Leaving of a dispatcher . 25 11.3.4 Leaving and returning to a broadcast call of a service subscriber 25 11.3.5 Cell change . 25 11.3.5.1 Listening subscriber 25 1 1.3.5.2 Cal
13、ling subscriber 25 11.3.5.3 Dispatcher . 25 New calls 25 Uplink transmission management 26 Overview of signalling . 26 11.3.1.1 11 3.6 il . 3.7 11.3.8 History . 31 ETSI GSM*O3.69 96 3400855 0079370 bob 9 Page 5 GSM 03.69 Version 5.0.0: January 1996 Foreword This Global System for Mobile communicatio
14、ns Technical Specification (GTS) has been produced by the Special Mobile Group (SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI). This GTS defines the stage 2 of the Voice Broadcast Service (VBS) within the digital cellular telecommunications system (Phase
15、2/Phase 2+). GTS are produced by TC-SMG to enable the GSM Phase 2+ specifications to become publicly available, prior to submission for the formal ETSI standards approval procedure to become European Telecommunications Standards (ETS). This ensures the earliest possible access to GSM Phase 2+ specif
16、ications for all Manufacturers, Network operators and implementors of the Global System for Mobile communications. The contents of this GTS are subject to continuing work within TC-SMG and may change following formal TC-SMG approval. Should TC-SMG modify the contents of this GTS it will then be repu
17、blished by ETSI with an identifying change of release date and an increase in version number as follows: Version 5.x.y where: y the third digit is incremented when editorial only changes have been incorporated in the specification; x the second digit is incremented for all other types of changes, .e
18、. technical enhancements, corrections, updates, etc. Reference is made within this GTS to GSM-TSs (note). NOTE: TC-SMG has produced documents which give the technical specifications for the implementation of the digital cellular telecommunications system. Historically, these documents have been iden
19、tified as GSM Technical Specifications (GSM-TSs). These TSs may have subsequently become I-ETSs (Phase l), or ETWETSI Technical Reports (ETRs) (Phase 2). TC-SMG has also produced ETSI GSM TSs which give the technical specifications for the implementation of Phase 2+ enhancements of the digital cellu
20、lar telecommunications system. These version 5.x.x GSM Technical Specifications may be referred to as GTSs. Page 6 GSM 03.69 Version 5.0.0: January 1996 Blank page - ETSI GSM*03*69 96 3400855 0079372 489 Page 7 GSM 03.69 Version 5.0.0: January 1996 1 Scope This Global System for Mobile communication
21、s Technical Specification (GTS) specifies the stage 2 description of the Voice Broadcast Service (VBS) which allows the distribution of speech (or other signals which can be transmitted via the speech codec), generated by a service subscriber, into a predefined geographical area to all or a group of
22、 service subscribers located in this area. 2 Normative references This specification incorporates by dated and undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated refer
23、ences, subsequent amendments to or revisions of any of these publications apply to this specification only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. 131 41 51 71 GSM O1 .O4 (ETR 100): “European digital cellula
24、r telecommunications system (Phase 2); Abbreviations and acronyms“. GSM 02.69: “Digital cellular telecommunications system (Phase 2+); Voice Broadcast Call Service (VBS) - stage 1 I. GSM 03.22 (ETS 300 535): “European digital cellular telecommunications system (Phase 2); Functions related to Mobile
25、Station (MS) in idle mode“. GSM 03.67: “Digital cellular telecommunications system (Phase 2+); enhanced Multi-Level Precedence and Pre-emption service (eMLPP) - Stage 2“. GSM 05.08 (ETS 300 578): “European digital cellular telecommunications system (Phase 2); Radio subsystem link control“. GSM 08.08
26、 (ETS 300 590): “European digital cellular telecommunications system (Phase 2); Mobile Switching Centre - Base Station System (MSC - BSS) interface Layer 3 specification“. CCITT Recommendation E.164: “Numbering plan for the ISDN era“ ETSI GSN*03=69 96 3400855 0079373 335 Page 8 GSM 03.69 Version 5.0
27、.0: January 1996 3 Definitions and abbreviations 3.1 Definitions Definitions used in this specification are also defined in GSM 02.69. broadcast channel: Downlink to be allocated in each cell of the service area for a particular broadcast call. All mobile stations of the destination subscriber being
28、 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 ID). broadcast call member: Any group member or dispatcher participating in an on going broadcast call
29、. broadcast call attributes: Service area, dispatcher identities and acknowledgement destinations applying to a broadcast call. Group Call Register (GCR): A functionality in the network containing the broadcast call attributes. The attributes are assigned by registration. group call anchor MSC: The
30、MSC responsible for managing and maintaining a particular broadcast call. The group call anchor MSC is determined as the one controlling the cells of the service area. For broadcast call services where the service area exceeds an MSC area, the group call anchor MSC is predefined in the network. grou
31、p call relay MSC: MSC controlling cells of a service area which are not under control of the group call anchor MSC for those broadcast call services where the service area exceeds one MSC area. notification: Notifications are given on common channels or dedicated channels in order to inform group me
32、mbers which are either in idle mode or in dedicated mode or participating in a group call or broadcast call on the existence of broadcast calls. Notification Channel (NCH): Common channel on which the notifications are sent by the network (equivalent to a paging channel). 3.2 Abbreviations Abbreviat
33、ions used in this specification are also listed in GSM O1 .O4 l. For the purpose of this specification, the following abbreviations apply: eMLPP GCR: NCH: VBS: VGCS: enhanced Multi-Level Precedence and Pre-emption Group Call Register Notification Channel Voice Broadcast Service Voice Group Call Serv
34、ice Page 9 GSM 03.69 Version 5.0.0: January 1996 4 Main concepts 4.1 Group definition Service 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 receive broadca
35、st calls associated with that group ID. In addition, certain group members are entitled by their subscription to initiate broadcast calls. Certain dispatchers connected to external networks also require the capability to initiate or receive broadcast calls. In addition to subscriber details in the H
36、LR, 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 which include only the group ID (.e. no IMSI or TMSI details). Having become a group member, each service subscriber can se
37、t 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 broadcast calls to that group ID. When in deactive state the subscriber can not make calls to the group and the mobile station ignores any notification for
38、 that group ID. 4.2 Broadcast process 4.2.1 Broadcast call initiation 4.2.1.1 Normal operation with successful outcome A broadcast call service area can be restricted to a single MSC area or can exceed one MSC area (implementation option). A broadcast call shall be initiated by a calling subscriber
39、by a related MMI action for the service selection and the group ID dialled. The group call anchor MSC identifies (by requesting the Group Call Register (GCR, see clause 5) the service area (set of cells over which the call is to be established) together with a set of dispatchers to be included in th
40、e call. When a calling subscriber initiates a broadcast call, one broadcast call channel shall be established in each cell of the service area. At the same time standard connections to dispatchers in the mobile network or in an external network shall be established. The calling subscriber shall have
41、 an dedicated standard uplinldownlink. All mobile stations of the listening service subscribers in one cell shall only listen to the same common downlink (broadcast call channel). Only one broadcast call channel shall be established in each cell for any given broadcast call, although there may be a
42、number of simultaneous broadcast calls within the same cell. Service subscribers shall be notified with details of the broadcast call channel in each cell. These broadcast call notification messages shall be broadcast on the notification channel (NCH). The notification messages use the group ID rath
43、er than individual TMSls/lMSls. Additionally, a service area identity (service area ID) shall be included in the paging message in order to enable a resolution in the case of overlapping service areas. A service subscribers mobile station needs to be able to recognise notification messages for those
44、 group IDS subscribed to and presently activated. Page 10 GSM 03.69 Version 5.0.0: January 1996 As a network option, messages are also sent on appropriate broadcast call channel SACCHs or FACCHs, in order to notify broadcast call members who may participate in other broadcast calls. In addition , al
45、so paging information messages for standard calls may be sent in order to inform broadcast call members on actually paged point-to-point calls. As a further network option, notification on the broadcast call shall be provided to service subscribers which have subscribed to the paged group ID and whi
46、ch are in dedicated mode. The ability to react on these notification and priority information messages which are provided into on- going calls shall be a mobile station option. It shall be indicated to the mobile stations by the network if the notification and paging information on the broadcast cal
47、l channel SACCH or FACCH is provided. The process of broadcasting messages on NCHs and appropriate SACCHs or FACCHs is to be carried out throughout the call in order to provide the “late entry“ facility whereby group members entering the area can join the call. On receiving details of a broadcast ca
48、ll, a broadcast call members mobile station which is in idle mode shall adjust to the nominated channel and receive the information on the downlink. Whilst receiving, the mobile station shall not transmit on the uplink SACCH. This broadcast call receive mode is different to the normal idle mode or d
49、edicated mode. 4.2.1.2 Exceptional procedures Completion of links into congested cells where pre-emption did not occur is required. If the cell in which the calling service subscriber is located will be reset, the broadcast call shall be released. On receiving details of a broadcast call, a broadcast call members mobile station which is in dedicated mode shall automatically leave the dedicated mode and adjust to the nominated channel and receive the information on the downlink if the new call is of higher priority than the existing call and pre-emption applies.
