Content for  TS 23.003  Word version:  18.5.0

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1  Scopep. 12

The present document defines the principal purpose and use of different naming, numbering, addressing and identification resources (i.e. Identifiers (ID)) within the digital cellular telecommunications system and the 3GPP system.
IDs that are covered by this specification includes both public IDs, private IDs and IDs that are assigned to MSs/UEs. Many of the IDs are used temporary in the networks and are allocated and assigned by the operators and some other IDs are allocated and assigned on either global, regional and national level by an administrator. See ITU-T Recommendation E.101 [122].
The present document defines:
the principal purpose and use of International Mobile station Equipment Identities (IMEI) within the digital cellular telecommunications system and the 3GPP system
an identification plan for public networks and subscriptions in the 3GPP systems;
principles of assigning telephone numbers to MSs in the country of registration of the MS;
principles of assigning Mobile Station (MS) roaming numbers to visiting MSs;
an identification plan for location areas, routing areas, and base stations in the GSM system;
an identification plan for MSCs, SGSNs, GGSNs, and location registers in the GSM/UMTS system;
principles of assigning international mobile equipment identities;
principles of assigning zones for regional subscription;
an identification plan for groups of subscribers to the Voice Group Call Service (VGCS) and to the Voice Broadcast Service (VBS); and identification plan for voice group calls and voice broadcast calls; an identification plan for group call areas;
principles for assigning Packet Data Protocol (PDP) addresses to mobile stations;
an identification plan for point-to-multipoint data transmission groups;
an identification plan for CN domain, RNC and service area in the UTRAN system.
an identification plan for mobile subscribers in the WLAN system.
addressing and identification for IMS Service Continuity
an identification plan together with principles of assignment and mapping of identities for the Evolved Packet System; and
addressing and identification for Proximity-based (ProSe) Services.
an identification for Online Charging System (OCS).
an identification plan together with principles of assignment and mapping of identities for the 5G System.
The present document specifies functions, procedures and information which apply to GERAN Iu mode. However, functionality related to GERAN Iu mode is neither maintained nor enhanced.

1.1  Referencesp. 13

1.1.1  Normative references |R5|p. 13

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
TS 21.905: "Vocabulary for 3GPP Specifications".
TS 23.008: "Organization of subscriber data".
TS 23.060: "General Packet Radio Service (GPRS); Service description; Stage 2"
TS 23.070: "Routeing of calls to/from Public Data Networks (PDN)".
→ to date, withdrawn by 3GPP
TS 24.008: "Mobile Radio Interface Layer 3 specification; Core Network Protocols; Stage 3".
TS 29.060: "GPRS Tunnelling protocol (GTP) across the Gn and Gp interface".
TS 43.020: "Digital cellular telecommunications system (Phase 2+); Security related network functions".
[8]  Void
TS 51.011: " Specification of the Subscriber Identity Module - Mobile Equipment (SIM - ME) interface".
ITU-T Recommendation E.164: "The international public telecommunication numbering plan".
ITU-T Recommendation E.212: "The international identification plan for public networks and subscriptions ".
ITU-T Recommendation E.213: "Telephone and ISDN numbering plan for land Mobile Stations in public land mobile networks (PLMN)".
ITU-T Recommendation X.121: "International numbering plan for public data networks".
RFC 791:  "Internet Protocol".
RFC 2373:  "IP Version 6 Addressing Architecture".
TS 25.401: "UTRAN Overall Description".
TS 25.413: "UTRAN Iu Interface RANAP Signalling".
RFC 2181:  "Clarifications to the DNS Specification".
RFC 1035:  "Domain Names - Implementation and Specification".
RFC 1123:  "Requirements for Internet Hosts -- Application and Support".
RFC 2462:  "IPv6 Stateless Address Autoconfiguration".
RFC 3041:  "Privacy Extensions for Stateless Address Autoconfiguration in IPv6".
TS 23.236: "Intra Domain Connection of RAN Nodes to Multiple CN Nodes".
TS 23.228: "IP Multimedia (IM) Subsystem - Stage 2"
[25]  Void
RFC 3261:  "SIP: Session Initiation Protocol"
TS 31.102: "Characteristics of the USIM Application".
[28]  Void
TS 44.118: "Radio Resource Control (RRC) Protocol, Iu Mode".
[30]  Void
TS 29.002: "Mobile Application Part (MAP) specification"
TS 22.016: "International Mobile Equipment Identities (IMEI)"
[33]  Void
[34]  Void
TS 45.056: "CTS-FP Radio Sub-system"
TS 42.009: "Security aspects"
TS 25.423: "UTRAN Iur interface RNSAP signalling"
TS 25.419: "UTRAN Iu-BC interface: Service Area Broadcast Protocol (SABP)"
TS 25.410: "UTRAN Iu Interface: General Aspects and Principles"
ISO/IEC 7812: "Identification cards - Numbering system and registration procedure for issuer identifiers"
[41]  Void
TS 33.102: "3G security; Security architecture"
TS 43.130: "Iur-g interface; Stage 2"
RFC 3966:  "The tel URI for Telephone Numbers"
TS 44.068: "Group Call Control (GCC) protocol".
TS 44.069: "Broadcast Call Control (BCC) Protocol".
TS 24.234: Release 12: "3GPP System to WLAN Interworking; UE to Network protocols; Stage 3".
[49]  Void
RFC 4187:  "EAP AKA Authentication".
RFC 4186:  "EAP SIM Authentication".
TS 23.246: "Multimedia Broadcast/Multicast Service (MBMS); Architecture and functional description"
RFC 4282:  "The Network Access Identifier".
RFC 2279:  "UTF-8, a transformation format of ISO 10646".
TS 33.234: Release 12: "Wireless Local Area Network (WLAN) interworking security".
[56]  Void
TS 33.221: "Generic Authentication Architecture (GAA); Support for Subscriber Certificates".
IEEE 1003.1-2004, Part 1: Base Definitions
TS 43.318: "Generic Access to the A/Gb interface; Stage 2"
TS 44.318: "Generic Access (GA) to the A/Gb interface; Mobile GA interface layer 3 specification"
TS 29.163: "Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks"
RFC 2606:  "Reserved Top Level DNS Names"
[65]  Void
TS 51.011: Release 4: "Specification of the Subscriber Identity Module - Mobile Equipment (SIM - ME) interface"
3GPP2 X.S0013-004: "IP Multimedia Call Control Protocol based on SIP and SDP; Stage 3"
TS 23.402: "Architecture Enhancements for non-3GPP accesses"
TS 33.402: "3GPP System Architecture Evolution: Security Aspects of non-3GPP accesses"
TS 23.292: "IP Multimedia Subsystem (IMS) Centralized Services; Stage 2"
TS 23.237: "IP Multimedia Subsystem (IMS) Service Continuity"
TS 23.401: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access"
TS 29.303: "Domain Name System Procedures; Stage 3"
RFC 3958:  "Domain-Based Application Service Location Using SRV RRs and the Dynamic Delegation Discovery Service (DDDS)"
[75]  Void
TS 23.237: "Mobility between 3GPP-Wireless Local Area Network (WLAN) interworking and 3GPP systems"
TS 24.302: "Access to the 3GPP Evolved Packet Core (EPC) via non-3GPP access networks; Stage 3"
TS 29.273: "Evolved Packet System; 3GPP EPS AAA Interfaces"
RFC 7254:  "A Uniform Resource Name Namespace for the Global System for Mobile Communications Association (GSMA) and the International Mobile station Equipment Identity (IMEI)".
RFC 4122:  "A Universally Unique IDentifier (UUID) URN Namespace".
TS 24.229: "IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3".
RFC 5448:  "Improved Extensible Authentication Protocol Method for 3rd Generation Authentication and Key Agreement (EAP-AKA') "
TS 22.011: "Service accessibility".
TS 36.413: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN) ; S1 Application Protocol (S1AP)".
Guidelines for use of a 48-bit Extended Unique Identifier (EUI-48™):
The Broadband Forum TR-069: "CPE WAN Management Protocol v1.1", Issue 1 Amendment 2, December 2007
TS 29.274: "Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C); Stage 3".
TS 33.401: "3GPP System Architecture Evolution: Security Architecture".
TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3".
TS 36.300: " Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2".
TS 23.216: "Single Radio Voice Call Continuity (SRVCC)".
TS 31.103: "IP Multimedia Services Identity Module (ISIM) application".
RFC 4825:  "The Extensible Markup Language (XML) Configuration Access Protocol (XCAP)".
TS 29.229: " Cx and Dx interfaces based on the Diameter protocol; Protocol details".
TS 29.329: " Sh Interface based on the Diameter protocol; Protocol details".
TS 29.165: "Inter-IMS Network to Network Interface (NNI); Stage 3".
TS 23.682: "Architecture Enhancements to facilitate communications with Packet Data Networks and Applications".
TS 44.018: "Mobile radio interface layer 3 specification; Radio Resource Control (RRC) protocol".
TS 44.060: "General Packet Radio Service (GPRS); Mobile Station (MS) - Base Station System (BSS) interface; Radio Link Control / Medium Access Control (RLC/MAC) protocol".
TS 23.251: "Network Sharing; Architecture and functional description".
TS 32.508: "Procedure flows for multi-vendor plug-and-play eNB connection to the network".
TS 23.303: "Proximity-based services (ProSe)".
RFC 7255:  "Using the International Mobile station Equipment Identity (IMEI) Uniform Resource Name (URN) as an Instance ID".
TS 26.346: "Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs".
TS 29.212: "Policy and Charging Control (PCC); Reference points".
TS 23.203: "Policy and charging control architecture".
TS 29.272: "Evolved Packet System (EPS); Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) related interfaces based on Diameter protocol".
[110]  Void.
TS 24.379: "Mission Critical Push To Talk (MCPTT) call control Protocol specification".
TS 43.064: "General Packet Radio Service (GPRS); Overall description of the GPRS Radio Interface; Stage 2".
RFC 6696:  "EAP Extensions for the EAP Re-authentication Protocol (ERP)".
TS 23.280: "Common functional architecture to support mission critical services".
TS 24.281: "Mission Critical Video (MCVideo) signalling control; Protocol specification".
TS 24.282: "Mission Critical Data (MCData) signalling control; Protocol specification".
TS 23.285: "Architecture enhancements for V2X services".
TS 24.116: "Stage 3 aspects of system architecture enhancements for TV services".
TS 23.501: "System Architecture for the 5G System; Stage 2".
TS 23.502: "Procedures for the 5G System; Stage 2".
TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".
ITU-T Recommendation E.101: "Definitions of terms used for identifiers (names, numbers, addresses and other identifiers) for public telecommunication services and networks in the E-series Recommendations".
TS 38.413: "NG Radio Access Network (NG-RAN); NG Application Protocol (NGAP)".
TS 33.501: "Security architecture and procedures for 5G system".
TS 24.501: "Non-Access-Stratum (NAS) protocol for 5G System (5GS); stage 3".
RFC 7542:  "The Network Access Identifier".
RFC 2818:  "HTTP over TLS".
TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".
TS 29.510: "5G System; Network Function Repository Services; Stage 3".
TS 23.316: "Wireless and wireline convergence access support for the 5G System (5GS); Stage 2".
RFC 7042:  "IANA Considerations and IETF Protocol and Documentation Usage for IEEE 802 Parameters".
BBF WT-470: "5G FMC Architecture".
CableLabs WR-TR-5WWC-ARCH: "5G Wireless Wireline Converged Core Architecture".
CableLabs DOCSIS MULPI: "Data-Over-Cable Service Interface Specifications DOCSIS 3.1, MAC and Upper Layer Protocols Interface Specification".
IEEE "Guidelines for Use of Extended Unique Identifier (EUI), Organizationally Unique Identifier (OUI), and Company ID (CID)":
TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification"
TS 38.331: "NR; Radio Resource Control (RRC); Protocol Specification".
TS 23.122: "Non-Access-Stratum (NAS) functions related to Mobile Station (MS) in idle mode".
TS 23.247: "Architectural enhancements for 5G multicast-broadcast services".
TS 38.300: "NR; NR and NG-RAN Overall Description; Stage 2".
TS 33.503: "Security Aspects of Proximity based Services (ProSe) in the 5G System (5GS)".
TS 23.304: "Proximity based Services (ProSe) in the 5G System (5GS); Stage 2".
TS 24.526: "UE policies for 5G System (5GS); Stage 3".
TS 24.368: "Non-Access Stratum (NAS) configuration Management Object (MO)".

1.1.2  Informative references |R5|p. 18

[44]  Void
GSMA PRD IR.34: "Inter-PLMN Backbone Guidelines"
[59]  Void
GSMA TS.06 "IMEI Allocation and Approval Process":

1.2  Abbreviationsp. 18

For the purposes of the present document, the abbreviations defined in TS 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
5G Broadband Residential Gateway
5G Cable Residential Gateway
5G Globally Unique Temporary Identifier
5G Non-Seamless WLAN offload
5G Residential Gateway
5G System
5G S-Temporary Mobile Subscription Identifier
Access and Mobility Management Function
Control Plane Prose Remote User Key
Evolved Packet System
EAP Re-authentication
EAP Re-authentication Protocol
Fixed Network Broadband Residential Gateway
Fixed Network Cable RGGUAMI Globally Unique AMF Identifier
Fixed Network RG
Globally Unique Temporary UE Identity
Global Cable Identifier
Global Line Identifier
Globally Unique Temporary UE Identity
Hybrid Fiber Coax
Human Readable Network Name
IMS Centralized Services
Multimedia Priority Service
Machine Type Communication
Non 5G Capable over WLAN
NR Cell Global Identity
NR Cell Identity
Network Specific Identifier
Online Charging System
Permanent Equipment Identifier
Radio Capability Signalling Optimisation
Residential Gateway
Stand-alone Non-Public Network
Subscription Concealed Identifier
Subscription Permanent Identifier
Trusted WLAN AAA Proxy
User Plane ProSe Remote User Key
Universally Unique Identifier
Wireline 5G Access Network
Wireline 5G Cable Access Network
Wireline BBF Access NetworkWebRTC Web Real-Time Communication
Wireless Local Area Network
WebRTC Web Server Function

1.3  General comments to referencesp. 19

The identification plan for public networks and subscriptions defined below is that defined in ITU-T Recommendation E.212.
The ISDN numbering plan for MSs and the allocation of mobile station roaming numbers is that defined in ITU-T Recommendation E.213. Only one of the principles for allocating ISDN numbers is proposed for PLMNs. Only the method for allocating MS roaming numbers contained in the main text of ITU-T Recommendation E.213 is recommended for use in PLMNs. If there is any difference between the present document and the ITU-T Recommendations, the former shall prevail.
For terminology, see also ITU-T Recommendations E.101, E.164 and X.121.

1.4  Conventions on bit orderingp. 19

The following conventions hold for the coding of the different identities appearing in the present document and in other GSM Technical Specifications if not indicated otherwise:
  • the different parts of an identity are shown in the Figures in order of significance;
  • the most significant part of an identity is on the left part of the Figure and the least significant on the right.
When an identity appears in other Technical Specifications, the following conventions hold if not indicated otherwise:
  • digits are numbered by order of significance, with digit 1 being the most significant;
  • bits are numbered by order of significance, with the lowest bit number corresponding to the least significant bit.

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