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TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
Numbering, addressing and identification
(3GPP TS 23.003 version 15.5.0 Release 15)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
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3GPP TS 23.003 version 15.5.0 Release 15 1 ETSI TS 123 003 V15.5.0 (2018-10)
Reference
RTS/TSGC-0423003vf50
Keywords
GSM,UMTS
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ETSI
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3GPP TS 23.003 version 15.5.0 Release 15 2 ETSI TS 123 003 V15.5.0 (2018-10)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
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Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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3GPP TS 23.003 version 15.5.0 Release 15 3 ETSI TS 123 003 V15.5.0 (2018-10)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 10
1 Scope . 11
1.1 References . 12
1.1.1 Normative references . 12
1.1.2 Informative references . 16
1.2 Abbreviations . 16
1.3 General comments to references . 17
1.4 Conventions on bit ordering . 17
2 Identification of mobile subscribers . 17
2.1 General . 17
2.2 Composition of IMSI. 17
2.2A Subscription Permanent Identifier (SUPI) . 18
2.2B Subscription Concealed Identifier (SUCI) . 18
2.3 Allocation and assignment principles . 21
2.4 Structure of TMSI . 21
2.5 Structure of LMSI . 22
2.6 Structure of TLLI . 22
2.7 Structure of P-TMSI Signature . 23
2.8 Globally Unique Temporary UE Identity (GUTI) . 23
2.8.1 Introduction. 23
2.8.2 Mapping between Temporary and Area Identities for the EUTRAN and the UTRAN/GERAN based
s yste ms . 24
2.8.2.0 Introduction . 24
2.8.2.1 Mapping from GUTI to RAI, P-TMSI and P-TMSI signature . 24
2.8.2.1.1 Introduction . 24
2.8.2.1.2 Mapping in the UE . 24
2.8.2.1.3 Mapping in the old MME . 25
2.8.2.2 Mapping from RAI and P-TMSI to GUTI . 25
2.8.2.2.1 Introduction . 25
2.8.2.2.2 Mapping in the UE . 25
2.8.2.2.3 Mapping in the new MME. 26
2.9 Structure of the S-Temporary Mobile Subscriber Identity (S-TMSI) . 26
2.10 5G Globally Unique Temporary UE Identity (5G-GUTI) . 26
2.10.1 Introduction. 26
2.10.2 Mapping between Temporary Identities for the 5GS and the E-UTRAN . 27
2.10.2.0 Introduction . 27
2.10.2.1 Mapping from 5G-GUTI to GUTI . 27
2.10.2.1.1 Introduction . 27
2.10.2.1.2 Mapping in the UE . 27
2.10.2.1.3 Mapping in the old AMF . 28
2.10.2.2 Mapping from GUTI to 5G-GUTI . 28
2.10.2.2.1 Introduction . 28
2.10.2.2.2 Mapping in the UE . 28
2.10.2.2.3 Mapping in the new AMF . 28
2.11 Structure of the 5G-S-Temporary Mobile Subscriber Identity (5G-S-TMSI) . 29
3 Numbering plan for mobile stations . 29
3.1 General . 29
3.2 Numbering plan requirements . 29
Structure of Mobile Subscriber ISDN number (MSISDN) . 29
3.4 Mobile Station Roaming Number (MSRN) for PSTN/ISDN routeing . 30
3.5 Structure of Mobile Station International Data Number . 31
3.6 Handover Number . 31
ETSI
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3GPP TS 23.003 version 15.5.0 Release 15 4 ETSI TS 123 003 V15.5.0 (2018-10)
3.7 Structure of an IP v4 address . 31
3.8 Structure of an IP v6 address . 31
4 Identification of location areas and base stations . 31
4.1 Composition of the Location Area Identification (LAI) . 31
4.2 Composition of the Routing Area Identification (RAI) . 32
4.3 Base station identification . 32
4.3.1 Cell Identity (CI) and Cell Global Identification (CGI) . 32
4.3.2 Base Station Identify Code (BSIC) . 32
4.4 Regional Subscription Zone Identity (RSZI) . 33
4.5 Location Number . 34
4.6 Composition of the Service Area Identification (SAI) . 34
4.7 Closed Subscriber Group . 34
4.8 HNB Name . 34
4.9 CSG Type . 34
4.10 HNB Unique Identity . 35
5 Identification of MSCs, GSNs, location registers and CSSs . 35
5.1 Identification for routeing purposes . 35
5.2 Identification of HLR for HLR restoration application . 36
5.3 Identification of the HSS for SMS . 36
6 International Mobile Station Equipment Identity, Software Version Number and Permanent
Equipment Identifier. 36
6.1 General . 36
6.2 Composition of IMEI and IMEISV . 36
6.2.1 Composition of IMEI . 36
6.2.2 Composition of IMEISV . 37
6.3 Allocation principles . 37
6.4 Permanent Equipment Identifier (PEI) . 37
7 Identification of Voice Group Call and Voice Broadcast Call Entities . 38
7.1 Group Identities . 38
7.2 Group Call Area Identification . 38
7.3 Voice Group Call and Voice Broadcast Call References . 38
8 SCCP subsystem numbers . 39
8.1 Globally standardized subsystem numbers used for GSM/UMTS . 39
8.2 National network subsystem numbers used for GSM/UMTS . 39
9 Definition of Access Point Name . 40
9A Definition of Data Network Name . 40
9.0 General . 40
9.1 Structure of APN . 40
9.1.1 Format of APN Network Identifier . 40
9.1.2 Format of APN Operator Identifier . 41
9.2 Definition of the Wild Card APN . 42
9.2.1 Coding of the Wild Card APN . 42
9.3 Definition of Emergency APN . 42
10 Identification of the Cordless Telephony System entities . 42
10.1 General description of CTS-MS and CTS-FP Identities . 42
10.2 CTS Mobile Subscriber Identities . 42
10.2.1 General . 42
10.2.2 Composition of the CTSMSI . 42
10.2.3 Allocation principles . 43
10.2.4 CTSMSI hexadecimal representation . 43
10.3 Fixed Part Beacon Identity . 43
10.3.1 General . 43
10.3.2 Composition of the FPBI . 43
10.3.2.1 FPBI general structure . 43
10.3.2.2 FPBI class A. 44
10.3.2.3 FPBI class B . 44
10.3.3 Allocation principles . 44
ETSI
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3GPP TS 23.003 version 15.5.0 Release 15 5 ETSI TS 123 003 V15.5.0 (2018-10)
10.4 International Fixed Part Equipment Identity . 45
10.4.1 General . 45
10.4.2 Composition of the IFPEI . 45
10.4.3 Allocation and assignment principles . 45
10.5 International Fixed Part Subscription Identity . 45
10.5.1 General . 45
10.5.2 Composition of the IFPSI . 46
10.5.3 Allocation and assignment principles . 46
11 Identification of Localised Service Area . 46
12 Identification of PLMN, RNC, Service Area, CN domain and Shared Network Area . 47
12.1 PLMN Identifier . 47
12.2 CN Domain Identifier . 47
12.3 CN Identifier . 47
12.4 RNC Identifier . 47
12.5 Service Area Identifier . 48
12.6 Shared Network Area Identifier . 48
13 Numbering, addressing and identification within the IP multimedia core network subsystem . 48
13.1 Introduction . 48
13.2 Home network domain name. 48
13.3 Private User Identity . 49
13.4 Public User Identity . 49
13.4A Wildcarded Public User Identity . 50
13.4B Temporary Public User Identity . 50
13.5 Public Service Identity (PSI) . 50
13.5A Private Service Identity . 51
13.6 Anonymous User Identity . 51
13.7 Unavailable User Identity . 51
13.8 Instance-ID . 52
13.9 XCAP Root URI . 52
13.9.1 XCAP Root URI on Ut interface . 52
13.9.1.1 General . 52
13.9.1.2 Format of XCAP Root URI . 52
13.10 Default Conference Factory URI for MMTel . 53
13.11 Unknown User Identity . 53
13.12 Default WWSF URI . 53
13.12.1 General . 53
13.12.2 Format of the Default WWSF URI . 53
13.13 IMEI based identity . 54
14 Numbering, addressing and identification for 3GPP System to WLAN Interworking . 54
14.1 Introduction . 54
14.2 Home network realm . 54
14.3 Root NAI . 55
14.4 Decorated NAI . 55
14.4A Fast Re-authentication NAI . 56
14.5 Temporary identities. 56
14.6 Alternative NAI .
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