EUROPEAN
ETS 300 940
TELECOMMUNICATION
October 1999
STANDARD
Sixth Edition
Source: SMG
Reference: RE/SMG-020408QR8
ICS: 33.020
Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM)
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
R
Digital cellular telecommunications system (Phase 2+);
Mobile radio interface;
Layer 3 specification
(GSM 04.08 version 5.12.1 Release 1996)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: secretariat@etsi.fr - http://www.etsi.org
Tel.: +33 4 92 94 42 00 - Fax: +33 4 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.
© European Telecommunications Standards Institute 1999. All rights reserved.
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ETS 300 940 (GSM 04.08 version 5.12.1 Release 1996): October 1999
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 Standards Making Support Dept." at the address shown on the title page.
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ETS 300 940 (GSM 04.08 version 5.12.1 Release 1996): October 1999
Contents
Intellectual Property Rights..........................................................................................................................21
Foreword .....................................................................................................................................................21
Introduction..................................................................................................................................................22
0 Scope .......................................................................................................................................................23
0.