ETSI
TSI EN 300 523 V4.10.1 (2000-
1)
(GSM 03.03 version 4.10.1)
Contents
Intellectual Property Rights ..........................................................................................................................4
Foreword......................................................................................................................................................4
1 Introduction........................................................................................................................................5
1.1 Scope.......................................................................................................................................................... 5
1.2 References .................................................................................................................................................. 5
1.3 Definitons and abbreviations........................................................................................................................ 6
1.4 General comments to references .................................................................................................................. 6
1.5 Conventions on bitordering.......................................................................................................................... 6
2 Identification of mobile subscribers ....................................................................................................6
2.1 General ....................................................................................................................................................... 6
2.2 Composition of IMSI................................................................................................................................... 7
2.3 Allocation principles ................................................................................................................................... 7
2.4 Structure of TMSI ....................................................................................................................................... 7
2.5 Structure of LMSI ....................................................................................................................................... 8
3 Numbering plan for mobile stations ....................................................................................................8
3.1 General ....................................................................................................................................................... 8
3.2 Numbering plan requirements...................................................................................................................... 8
3.3 Structure of mobile station international PSTN/ISDN number (MSISDN) .................................................... 9
3.4 Mobile Station Roaming Number (MSRN) for PSTN/ISDN routeing........................................................... 9
3.5 Structure of Mobile Station International Data Number..............................................................................10
3.6 Handover Number..................................................................................................................................... 10
4 Identification of location areas and base stations ...............................................................................10
4.1 Composition of the Location Area Identification (LAI)..............................................................................10
4.2 Base station identification.......................................................................................................................... 10
4.2.1 Cell Identity (CI) and Cell Global Identification (CGI) ......................................................................... 10
4.2.2 Base Station Identify Code (BSIC)....................................................................................................... 11
4.3 Regional Subscription Zone Identity (RSZI) .............................................................................................. 11
4.4 Location Number ...................................................................................................................................... 12
5 Identification of MSCs and location registers....................................................................................12
5.1 Identification for routing purpose............................................................................................................... 12
5.2 Identification of HLR for HLR restoration application ............................................................................... 12
6 International mobile station equipment identity and software version number....................................12
6.1 General ..................................................................................................................................................... 12
6.2 Composition of IMEI and IMEISV............................................................................................................ 13
6.2.1 Composition of IMEI........................................................................................................................... 13
6.2.2 Composition of IMEISV...................................................................................................................... 13
6.3 Allocation principles ................................................................................................................................. 14
Annex A (informative): Colour Codes..............................................................................................15
A.1 Utilisation of the BSIC......................................................................................................................15
A.2 Guidance for planning.......................................................................................................................15
A.3 Example of PLMN Colour Codes (NCCs) for the European region ...................................................16
History .......................................................................................................................................................17
