SIST ETS 300 587-2 E1:2003

European digital cellular telecommunications system (Phase 2); Base Station System - Mobile-services Switching Centre (BSS - MSC) interface; Interface principles (GSM 08.02)

....

Evropski digitalni celični telekomunikacijski sistem (faza 2) – Vmesnik za sistem baznih postaj – komutacija mobilnih storitev (BSS-MSC) – Načela za vmesnik (GSM 08.02)

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 300 587-2 ed.1 (1994-09) - European digital cellular telecommunications system (Phase 2); Base Station System - Mobile-services Switching Centre (BSS - MSC) interface; Interface principles (GSM 08.02)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 587-2 E1:2003
01-december-2003
(YURSVNLGLJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D±9PHVQLN]DVLVWHP
ED]QLKSRVWDM±NRPXWDFLMDPRELOQLKVWRULWHY%6606&±1DþHOD]DYPHVQLN
*60
European digital cellular telecommunications system (Phase 2); Base Station System -
Mobile-services Switching Centre (BSS - MSC) interface; Interface principles (GSM
08.02)
Ta slovenski standard je istoveten z: ETS 300 587-2 Edition 1
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST ETS 300 587-2 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 587-2 E1:2003

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SIST ETS 300 587-2 E1:2003
EUROPEAN ETS 300 587-2
TELECOMMUNICATION September 1994
STANDARD
Source:ETSI TC-SMG Reference:GSM 08.02
ICS: 33.060.30
European digital cellular telecommunications system, Global System for Mobile communications
Key words:
(GSM)
European digital cellular telecommunications system (Phase 2);
Base Station System - Mobile-services Switching Centre
(BSS - MSC) interface
Interface principles
(GSM 08.02)
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 1994. All rights reserved.
New presentation - see History box

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ETS 300 587-2: September 1994
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 300 587-2: September 1994
Contents
Foreword.5
1 General .7
1.1 Scope .7
1.2 Normative references .8
1.3 Definitions and abbreviations.9
2 Functional division between Base Station System (BSS) and MSC.10
2.1 Terrestrial channel management.11
2.1.1 Terrestrial channel allocation .11
2.1.2 Blocking of terrestrial channels .11
2.2 Radio channel management .12
2.2.1 Channel configuration management.12
2.2.2 Radio TCH management.12
2.2.2.1 Radio channel allocation.12
2.2.2.2 TCH radio link supervision .12
2.2.2.3 Frequency hopping management.12
2.2.2.4 Idle channel observation.12
2.2.2.5 TCH power control.12
2.2.2.6 TCH channel release.12
2.2.3 BCCH CCCH management.12
2.2.3.1 Scheduling of BCCH and CCCH messages .13
2.2.4 DCCH Management.13
2.2.4.1 DCCH link supervision.13
2.2.4.2 DCCH channel release.13
2.2.4.3 DCCH power control.13
2.2.4.4 Radio Channel Allocation.13
2.3 Resource indication .13
2.4 Channel coding decoding .13
2.5 Transcoding/rate adaptation.13
2.6 Interworking function (data calls).13
2.7 Measurement information.14
2.7.1 Measurement information reported from the MS .14
2.7.2 Uplink measurement information .14
2.7.3 Traffic information .14
2.8 Handover.14
2.8.1 Internal handover within one cell .14
2.8.2 Internal handover between cells.14
2.8.3 External handover.14
2.8.3.1 Recognition that a handover is required for a radio reason. 15
2.8.3.2 Recognition that a handover is required for a traffic
reason.15
2.8.3.3 Decision of Target Cell.15
2.8.3.4 Execution .15
2.9 Mobility management. 15
2.10 Call control . 15
2.11 Security features.15
2.11.1 User data confidentiality.15
2.11.2 User identity confidentiality.15
2.11.3 Signalling information confidentiality .16
2.11.4 Authentication of users.16
3 Transcoder/rate adapter integration.16

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ETS 300 587-2: September 1994
4 Multiplexing of common and dedicated control channels.16
5 Classes of signalling messages .17
6 Support of services and features other than speech .17
6.1 Data services.17
6.2 Supplementary services.17
7 Interface structures .17
8 Operation and maintenance.17
Annex A (informative): Remote Mobile Switching Unit (RMSU) .19
A.1 Introduction.19
A.2 Functions provided by the RMSU.19
A.3 General requirements .19
History .20

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SIST ETS 300 587-2 E1:2003
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ETS 300 587-2: September 1994
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).
This ETS gives the interface principles Base Station System (BSS) to Mobile-services Switching Centre
(MSC) interface. This ETS corresponds to GSM technical specification GSM 08.02 version 4.1.1.
The specification from which this ETS has been derived was originally based on CEPT documentation,
hence the presentation of this ETS may not be entirely in accordance with the ETSI/PNE rules.
Reference is made within this ETS to GSM-TSs (NOTE).
Reference is also made within this ETS to GSM xx.xx. series. The specifications in the series can be
identified, with their full title, within the normative reference Clause of this ETS by the first two digits of
their GSM reference number e.g. GSM 09.xx series, refers to GSM 09.01, GSM 09.02, etc.
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-TSs).
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 GSM ETSs.

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ETS 300 587-2: September 1994
Blank page

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ETS 300 587-2: September 1994
1 General
1.1 Scope
This Technical Specification gives the principles on which the detailed interface specifications in the rest of
the GSM 08.0X series of Technical Specifications are based.
The set of fixed equipment accessed from the MSC through one particular instance of the interface will be
later referred to as a Base station system (BSS). A BSS ensures the coverage of n cells, where n can be
1 or more.
The function of a BSS may be further subdivided into a control function, performed by one base station
controller (BSC) and a transceiving function,performed by "n" base transceiver station equipments (BTS),
one for each cell. However, the study of such a split is outside the scope of the 08.0x series of Technical
Specifications, where the BSS will be considered as a whole.
The BSS-MSC interface defined in the GSM 08 series of Technical Specifications is designed to support a
wide range of possible architectures on both sides. Characteristics like the physical location of the
transcoders/rate adaptation inside the BSS (either integrated into the transceivers or very near to the
MSC) or the use of traffic or signalling concentration at either side are left to the operators choice. Annex
A to this Technical Specification contains guidance information concerning the use of remote mobile
switching units, which for the purposes of this specification are considered as part of the MSC.
Direct connection between two BSSs is not supported by this interface.
This interface is based on the use of 1 or more 2048 kbit/s digital transmission system interfaces. Each
2048 kbit/s interface provides 31*64 kbit/s channels which can be used for traffic or signalling as the
operator requires.
The signalling is layered, terminology similar to that in the OSI reference model is used in this series,
however the layers referred to are not identical to the equivalently named layer in the OSI model.
This interface is defined at the boundary of the MSC and has a per channel bit rate of 64 kbit/s, but the net
radio path traffic channel is at a rate of less than 16 kbit/s. A transcoder or rate adapter function is thus
needed for the rate conversion. The interface is designed such that the transcoding or rate adaptation
function may be geographically situated at either the MSC site or the BSS site, however the transcoder is
considered to be part of the BSS.
The interface has been designed around the aims of Technical Specification GSM 08.01 allowing each
component and the system as a whole to evolve.

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ETS 300 587-2: September 1994
1.2 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 (prETS 300 527): "European digital cellular telecommunications
system (Phase 2); Handover procedures".
[3] GSM 03.10 (prETS 300 528): "European digital cellular telecommunications
system (Phase 2); GSM Public Land Mobile Network (PLMN) connection types".
[4] GSM 03.20 (prETS 300 534): "European digital cellular telecommunications
system (Phase 2); Security related network functions".
[5] GSM 04.08 (prETS 300 557): "European digital cellular telecommunications
system (Phase 2); Mobile radio interface layer 3 specification".
[6] GSM 08.01 (prETS 300 587-1): "European digital cellular telecommunications
system (Phase 2); Base Station System - Mobile Switching Centre (BSS - MSC)
interface General aspects".
[7] GSM 08.04 (prETS 300 588): "European digital cellular telecommunications
system (Phase 1); Base Station System - Mobile-services Switching Centre
(BSS - MSC) interface Layer 1 specification".
[8] GSM 08.06 (prETS 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".
[9] GSM 08.08 (prETS 300 590): "European digital cellular telecommunications
system (Phase 2); Mobile Switching Centre - Base Station System (MSC - BSS)
interface Layer 3 specification".
[10] GSM 08.20 (prETS 300 591): "European digital cellular telecommunications
system (Phase 2); Rate adaption on the Base Station System - Mobile-services
Switching Centre (BSS - MSC) interface".
[11] GSM 08.51 (prETS 300 592): "European digital cellular telecommunications
system (Phase 2); Base Station Controller - Base Transceiver Station (BSC -
BTS) interface General aspects".
[12] GSM 08.52 (prETS 300 593): "European digital cellular telecommunications
system (Phase 2); Base Station Controller - Base Transceiver Station (BSC -
BTS) interface Interface principles".
[13] GSM 08.54 (prETS 300 594): "European digital cellular telecommunications
system (Phase 2); Base Station Controller - Base Transceiver Station (BSC -
BTS) interface Layer 1 structure of physical circuits".
[14] GSM 08.56 (prETS 300 595): "European digital cellular telecommunications
system (Phase 2); Base Station Controller - Base Transceiver Station (BSC -
BTS) interface Layer 2 specification".

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ETS 300 587-2: September 1994
[15] GSM 08.58 (prETS 300 596): "European digital cellular telecommunications
system (Phase 2); Base Station Controller - Base Transceiver Station (BSC -
BTS) interface Layer 3 specification".
[16] GSM 08.60 (prETS 300 597): "European digital cellular telecommunications
system (Phase 2); Inband control of remote transcoders and rate adaptors".
[17] GSM 08.61 (prETS 300 598): "European digital cellular telecommunications
system (Phase 2); Inband control of remote transcoders and rate adaptors (half
rate)".
[18] GSM 12.01 (prETS 300 612-2): "European digital cellular telecommunications
system (Phase 2); Common aspects of GSM Network Management (NM)".
1.3 Definitions and abbreviations
Abbreviations used in this specification are listed in GSM 01.04

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ETS 300 587-2: September 1994
2 Functional division between Base Station System (BSS) and MSC
FUNCTIONAL SPLIT
�˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜´˜˜˜˜˜´˜˜˜˜˜˜˜˜˜˜˜˜¿
‡                   œ  ‡ œ  ‡      ‡
‡Item/Task              œ  ‡ BSS ‡MSC,VLR,HLR ‡
ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜˜˜˜·
‡Terrestrial Channel Management    œ  ‡ œ  ‡      ‡
‡ channel allocation         œ  ‡ œ  ‡   X   ‡
‡ blocking indication        œ  ‡ œX ‡      ‡
‡                   œ  ‡ œ ‡      ‡
‡Radio channel management       œ  ‡ œ  ‡      ‡
‡                   œ  ‡ œ  ‡      ‡
‡  Radio channel configuration    œ  ‡ œ  ‡      ‡
‡  management            œ  ‡ œX ‡      ‡
‡  frequency hopping management   œ  ‡ œX ‡      ‡
‡  idle channel observation     œ  ‡ œX ‡      ‡
‡  power control           œ  ‡ œX ‡      ‡
‡                   œ  ‡ œ  ‡      ‡
‡ TCH management           œ  ‡ œ  ‡      ‡
‡  channel allocation (choice)    œ  ‡ œX ‡      ‡
‡  link supervision         œ  ‡ œX ‡      ‡
‡  channel release          œ  ‡ œX ‡ X (Invoked ‡
‡                   œ  ‡ œ  ‡  by MSC) ‡
‡                   œ  ‡ œ  ‡      ‡
‡ BCCH/CCCH management        œ  ‡ œ  ‡      ‡
‡  scheduling of messages      œ  ‡ œX ‡      ‡
‡                   œ  ‡ œ  ‡      ‡
‡ DCCH management          œ  ‡ œ  ‡      ‡
‡  link supervision         œ  ‡ œX ‡      ‡
‡  channel release          œ  ‡ œX ‡ X (Invoked ‡
‡  DCCH allocation          œ  ‡ œX ‡  by MSC ‡
‡                   œ  ‡ œ  ‡      ‡
‡Radio resource indication      œ  ‡ œ  ‡      ‡
‡ report status of idle channels   œ  ‡ œX ‡      ‡
‡                   œ  ‡ œ  ‡      ‡
‡Channel coding decoding,       œ  ‡ œ  ‡ MSC defines‡
‡ on the basis of call type     œ  ‡ œX ‡ call type ‡
‡                   œ  ‡ œ  ‡      ‡
‡Transcoding/rate adaptation     œ  ‡ œX ‡   .   ‡
‡                   œ  ‡ œ  ‡      ‡
‡Interworking Function (data calls)  œ  ‡ œ  ‡   X   ‡
‡                   œ  ‡ œ  ‡      ‡
‡Measurements             œ  ‡ œ  ‡      ‡
‡ reported from MS          œ  ‡ œX ‡      ‡
‡ uplink               œ  ‡ œX ‡      ‡
‡ traffic              œ  ‡ œ  ‡   X   ‡
�˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜`˜˜˜˜˜`˜˜˜˜˜˜˜˜˜˜˜˜�

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ETS 300 587-2: September 1994
FUNCTIONAL SPLIT
�˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜´˜˜˜˜˜´˜˜˜˜˜˜˜˜˜˜˜˜¿
‡                     ‡   ‡      ‡
‡Item/Task                ‡ BSS ‡ MSC,VLR,HLR‡
ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜
...