SIST ETS 300 626 E1:2003

European digital cellular telecommunications system (Phase 2); Application of the Base Station System Application Part (BSSAP) on the E-interface (GSM 09.08)

Use of the Base Station System Management Application Protocol (BSSMAP) on the E-interface between the anchor Mobile-services Switching Center (MSC) and the terminating Mobile-services Switching Center (MSC)

Evropski digitalni celični telekomunikacijski sistem (faza 2) ¬– Uporaba aplikacijskega dela sistema baznih postaj (BSSAP) pri E-vmesniku (GSM 09.08)

General Information

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.50 - Global System for Mobile Communication (GSM)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI ETS 300 626 ed.1 (1995-08) - European digital cellular telecommunications system (Phase 2); Application of the Base Station System Application Part (BSSAP) on the E-interface (GSM 09.08)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 626 E1:2003
01-december-2003
(YURSVNLGLJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D¤±8SRUDED
DSOLNDFLMVNHJDGHODVLVWHPDED]QLKSRVWDM%66$3SUL(YPHVQLNX*60
European digital cellular telecommunications system (Phase 2); Application of the Base
Station System Application Part (BSSAP) on the E-interface (GSM 09.08)
Ta slovenski standard je istoveten z: ETS 300 626 Edition 1
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST ETS 300 626 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 626 E1:2003

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SIST ETS 300 626 E1:2003
EUROPEAN ETS 300 626
TELECOMMUNICATION July 1995
STANDARD
Source: ETSI TC-SMG Reference: DE/SMG-030908P
ICS: 33.060.30
European digital cellular telecommunications system, Global System for Mobile communications
Key words:
(GSM)
European digital cellular telecommunications system (Phase 2);
Application of the Base Station System
Application Part (BSSAP) on the E-interface
(GSM 09.08)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - [e-mail]
X.400: Internet:
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 1995. All rights reserved.
New presentation - see History box

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ETS 300 626: July 1995 (GSM 09.08 version 4.1.1)
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 Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 626: July 1995 (GSM 09.08 version 4.1.1)
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions and abbreviations .8
4 Principles for the use of BSSAP on the E-interface .8
4.1 General .8
4.2 Transfer of DTAP and BSSMAP layer 3 messages on the E-interface .8
4.3 Roles of MSC-A, MSC-I and MSC-T .9
5 Use of the BSSAP on the E-interface.9
5.1 DTAP .10
5.2 Assignment .10
5.3 Handover resource allocation .10
5.4 Handover execution.10
5.5 Internal handover indication.10
5.6 Release due to BSS generated reasons.11
5.7 Classmark handling .11
5.8 Cipher mode control .11
5.9 Trace invocation.11
5.10 Queuing indication .11
5.11 Data link control SAPI not equal to "0".11
6 BSSMAP messages transferred on the E-interface.12
7 Exceptions for BSSMAP message contents and information element coding when transferred on
the E-interface.13
7.1 Message contents.13
7.2 Information element coding .14
8 BSSAP message error handling when transferred on the E-interface.14
History.15

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ETS 300 626: July 1995 (GSM 09.08 version 4.1.1)
Foreword
This European Telecommunication Standard (ETS) has been produced by the Special Mobile Group
(SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI) and is
now submitted for the Public Enquiry (PE) phase of the ETSI standards approval procedure.
This ETS defines the application of the Base Station System Application Part (BSSAP) on the E-interface
for the European digital cellular telecommunications system (Phase 2).
This ETS corresponds to GSM Technical Specification (GSM-TS) GSM 09.08 version 4.1.1.
Reference is made within this ETS to GSM Technical Specifications (GSM-TS) (note).
NOTE: TC-SMG has produced documents which give the technical specifications for the
implementation of the European digital cellular telecommunications system.
Historically, these documents have been identified as GSM Technical Specifications
(GSM-TS). These TSs may have subsequently become I-ETSs (Phase 1), or ETSs
(Phase 2), whilst others may become ETSI Technical Reports (ETRs). GSM-TSs are,
for editorial reasons, still referred to in current GSM ETSs.
Transposition dates
Date of adoption of this ETS: 30 July 1995
Date of latest announcement of this ETS (doa): 31 October 1995
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 30 April 1996
Date of withdrawal of any conflicting National Standard (dow): 30 April 1996

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ETS 300 626: July 1995 (GSM 09.08 version 4.1.1)
1 Scope
This European Telecommunication Standard (ETS) describes the subset of Base Station System
Application Part (BSSAP) messages and procedures, defined in TS GSM 08.06 and TS GSM 08.08,
which is used on the E-interface. A general description can be found in TS GSM 03.02 and TS GSM
03.09.
For the initiation and execution of handover between MSCs a subset of BSSMAP procedures are used.
For the subsequent control of resources allocated to the mobile station BSSMAP procedures are used.
DTAP is used for the transfer of connection management and mobility management messages between
the mobile station and the controlling MSC.
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 ETS only when incorporated in it by amendment or revision. For undated references, the
latest edition of the publication referred to applies.
[1] GSM 01.04 (ETR 100): "European digital cellular telecommunications system
(Phase 2); Abbreviations and acronyms".
[2] GSM 03.09 (ETS 300 527): "European digital cellular telecommunications
system (Phase 2); Handover procedures".
[3] GSM 08.06 (ETS 300 589): "European digital cellular telecommunications
system (Phase 2); Signalling transport mechanism specification for the Base
Station System - Mobile-services Switching Centre (BSS - MSC) interface".
[4] GSM 08.08 (ETS 300 590): "European digital cellular telecommunications
system (Phase 2); Mobile Switching Centre - Base Station System (MSC - BSS)
interface Layer 3 specification".
[5] GSM 09.02 (ETS 300 599): "European digital cellular telecommunications
system (Phase 2); Mobile Application Part (MAP) specification".
[6] GSM 09.10 (ETS 300 605): "European digital cellular telecommunications
system (Phase 2); Information element mapping between Mobile Station - Base
Station System and BSS ˜ Mobile-services Switching Centre (MS - BSS - MSC)
Signalling procedures and the Mobile Application Part (MAP)".

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3 Definitions and abbreviations
For the purposes of this ETS the following abbreviations apply:
BSS Base Station System
BSSAP Base Station System Application Part
BSSMAP Base Station System Management Application Part
CCCH Common Control CHannel
DLCI Data Link Connection Identifier
DTAP Direct Transfer Application Part
MSC Mobile-services Switching Centre
MSC-A Mobile-services Switching Centre, Anchor (Anchor MSC)
MSC-I Mobile-services Switching Centre, Intermediate (Intermediate MSC)
MSC-T Mobile-services Switching Centre, Target (Target MSC)
SAPI Service Access Point Identifier
SCCP Signalling Connection Control Part
TCAP Transaction Capabilities Application Part
Other abbreviation used in the GSM specifications are listed in GSM 01.04.
4 Principles for the use of BSSAP on the E-interface
4.1 General
The mechanisms for the transfer of the BSSAP messages on the E-interface is defined in TS GSM 09.02.
The operation of the handover procedures between MSCs and the use of the BSSMAP messages for
those procedures is described in TS GSM 03.09 and TS GSM 09.10.
In the same way as a SCCP signalling connection is used for the messages relating to one mobile station
on the MSC-BSS interface a TCAP dialogue is used on the E-interface for messages relating to one
mobile station. As no correspondence to the connectionless service on the MSC-BSS interface is used on
the E-interface none of the global procedures (see TS GSM 08.08 subclause 3.1) are applicable.
The management of the terrestrial circuits between the MSCs is outside the scope of the E-interface (see
TS GSM 03.09), therefore all procedures, messages and information elements relating to terrestrial
circuits are also excluded from the BSSMAP procedures and messages used on the E-interface.
4.2 Transfer of DTAP and BSSMAP layer 3 messages on the E-interface
The BSSAP data which on the MSC-BSS interface is contained in the user data field of the exchanged
SCCP frames (see TS GSM 08.06) is on the E-interface transferred as the contents of the signalling info
in a BSS-APDU parameter as described in TS GSM 09.02.
The BSSAP data consists of a BSSAP header and a DTAP or BSSMAP layer 3 message. The BSSAP
header contains, as specified in TS GSM 08.06 (subclauses 6.3.1, 6.3.2 and 6.3.3), of a discriminatio
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