SIST-V ETSI/EG 202 118 V1.1.1:2005

• Abstract:

  This deliverable specifies the structure of the TETRA numbering scheme.

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.040.35 - Telephone networks
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Ref Project: ETSI EG 202 118 V1.1.1 (2003-05) - Services and Protocols for Advanced Networks (SPAN); The structure of the TETRA numbering resource, interworking and high level policy for administration

SIST-V ETSI/EG 202 118 V1.1.1:2005 is the Slovenian version of ETSI EG 202 118 V1.1.1, an ETSI Guide on the structure of the TETRA numbering resource. It explains how the Individual TETRA Subscriber Identity (ITSI) is structured and how TETRA Mobile Country Codes ((T)MCC) and TETRA Mobile Network Codes ((T)MNC) are allocated and administered. The guide is aimed at National Numbering Plan Administrators, National TETRA Numbering Administrators (NTNA), and network operators, especially where TETRA has to interwork with systems that use ITU-T Recommendation E.212 identities.

What does SIST-V ETSI/EG 202 118 V1.1.1:2005 specify?

SIST-V ETSI/EG 202 118 V1.1.1:2005 specifies guidance for the TETRA country code and network code parts of the ITSI. It applies to TETRA networks regardless of interconnection arrangements and includes guidance for dual mode operation with the GSM family of systems.

The document is organized into an introduction, scope, references, definitions and abbreviations, three technical clauses on ITSI structure and code administration, and one informative annex.

Annex	What it covers
Annex A	Bibliography

What are the key requirements of SIST-V ETSI/EG 202 118 V1.1.1:2005?

SIST-V ETSI/EG 202 118 V1.1.1:2005 sets out how the ITSI is built and how the code spaces are managed in practice. The main points are the fixed structure of the identity, the administration of national and country-level codes, and the guidance for operators who need compatibility with E.212-based systems.

ITSI structure and presentation

Clause 4 states that the ITSI has three parts: a 3-digit (T)MCC, a 4-digit (T)MNC, and an 8-digit SSI, for a maximum of 15 decimal digits. The identity is encoded separately at the air interface, but mobiles normally display it in decimal form, which is the form used in the guide. In practice, this tells implementers what the user sees and what the network carries.

Relationship to IMSI

Clause 4 also explains that the ITSI is similar in structure to the ITU-T Recommendation E.212 IMSI, but it is a separate numbering scheme. That matters when operators compare TETRA identities with GSM or UMTS/IMT-2000 identities, because similarity does not mean interchangeability.

(T)MCC administration

Clause 5 states that the TETRA Memorandum of Understanding (MoU) Group administers the (T)MCC and that the values currently follow the E.212 MCC allocations. The clause also notes that TETRA allocations are not necessarily recognized by all National Regulatory Authorities (NRA), so the administrative arrangement affects international recognition and national coordination.

(T)MNC administration

Clause 6 says that (T)MNC administration is a national matter and may be handled by the National Numbering Plan Administrator or by the NTNA, depending on the country. If the NTNA is not the NRA, the guide advises seeking guidance from the national numbering plan administrator. In practice, this is the part operators need to clear before assigning network codes.

Dual mode operation and alignment

Clause 7 gives guidance for dual mode operation with systems that use E.212 MNCs. It describes two options: keep separate IMSI and ITSI values, or use a common aligned decimal value for both. When alignment is chosen, the operator should first obtain an E.212 MNC and then have the same value allocated in the TETRA (T)MNC space.

Code range guidance

Clause 7.2 states that, where alignment is supported, TETRA single-mode allocations should be limited to the range 1 000 to 9 999, and the range 0100 to 0999 should not be used. That preserves room for aligned dual-mode use and avoids clashes with 3-digit E.212 MNCs. If an operator later introduces dual mode after starting with TETRA-only service, the guide says the operator will need either to renumber or to keep two separate (T)MNC values.

What terms does SIST-V ETSI/EG 202 118 V1.1.1:2005 define?

• administration body - The body responsible for allocating and managing the TETRA Mobile Country Code, currently the TETRA MoU Group.
• National TETRA Numbering Administrator (NTNA) - The body responsible for national allocation and management of TETRA Mobile Network Codes.
• ITSI - Individual TETRA Subscriber Identity, the full subscriber identity used in TETRA.
• (T)MCC - TETRA Mobile Country Code, the country code part of the ITSI.
• (T)MNC - TETRA Mobile Network Code, the network code part of the ITSI.
• SSI - Short Subscriber Identity, the network-specific subscriber part of the ITSI.
• IMSI - International Mobile Subscriber Identity, the E.212 mobile identity used as the comparison point in the guide.
• NRA - National Regulatory Authority, the national authority referenced for numbering administration arrangements.

Who uses SIST-V ETSI/EG 202 118 V1.1.1:2005?

SIST-V ETSI/EG 202 118 V1.1.1:2005 is mainly used by numbering administrators and network operators. National Numbering Plan Administrators and NTNA use it when assigning TETRA code resources, and operators use it when planning network identities or dual mode services with GSM, UMTS, or IMT-2000 systems.

It is also relevant to regulators and organizations involved in numbering policy, because the guide discusses recognition, administration, and alignment of code values.

Which standards are used with SIST-V ETSI/EG 202 118 V1.1.1:2005?

• ETSI EN 300 392-1 - Provides the TETRA V+D network design context and the addressing and identities clause referenced by this guide.
• ETSI TR 102 300-5 - Gives further guidance on numbering and addressing implementation and dialling arrangements.
• ITU-T Recommendation E.190 - Provides general principles for managing, assigning, and reclaiming international numbering resources.
• ITU-T Recommendation E.212 - Defines the international identification plan for mobile terminals and mobile users, including the IMSI and its MCC and MNC structure.
• ITU-T Recommendation X.121 - Was the earlier basis for copying (T)MCC values, before the guide describes the move toward E.212 alignment.

What does the SIST-V ETSI/EG 202 118 V1.1.1:2005 document contain?

The document contains a short technical guide rather than a test method or conformance specification. It includes the ITSI structure, a comparison with the E.212 IMSI structure, and guidance on the allocation and administration of (T)MCC and (T)MNC values. It also explains dual mode alignment policy and the practical consequences for operators who move between TETRA-only and dual mode operation.

Annex A gives the bibliography. The front matter also includes definitions, abbreviations, and a note on intellectual property rights.

SLOVENSKI STANDARD
01-januar-2005
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VLVWHPX7(75$Y]DMHPQRGHORYDQMHLQYLVRNDUDYHQSROLWLNH]DDGPLQLVWULUDQMH
Services and Protocols for Advanced Networks (SPAN); The structure of the TETRA
numbering resource, interworking and high level policy for administration
Ta slovenski standard je istoveten z: EG 202 118 Version 1.1.1
ICS:
33.040.35 Telefonska omrežja Telephone networks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI Guide
Services and Protocols for Advanced Networks (SPAN);
The structure of the TETRA numbering resource,
interworking and high level policy for administration

2 ETSI EG 202 118 V1.1.1 (2003-05)

Reference
DEG/SPAN-110104
Keywords
addressing, administration, interworking
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3 ETSI EG 202 118 V1.1.1 (2003-05)
Contents
Intellectual Property Rights.4
Foreword.4
Introduction .4
1 Scope.5
2 References.5
3 Definitions and abbreviations.5
3.1 Definitions.5
3.2 Abbreviations.6
4 Structure of the TETRA ITSI.6
5 Allocation and administration of TETRA Mobile Country Codes ((T)MCC)).7
6 Allocation and administration of TETRA Mobile Network Codes((T)MNC)).7
7 Guidance on allocating TETRA MNCs for dual mode operation with systems that use
ITU-T Recommendation E.212 MNCs .8
7.1 Background.8
7.2 Allocations of (T)MNC in relation to E.212 MNC .8
Annex A (informative): Bibliography.10
History .11

ETSI
4 ETSI EG 202 118 V1.1.1 (2003-05)
Intellectual Property Rights
IPRs essential or potentially essential to the present document 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 (http://webapp.etsi.org/IPR/home.asp).
All published ETSI deliverables shall include information which directs the reader to the above source of information.
Foreword
This ETSI Guide (EG) has been produced by ETSI Technical Committee Services and Protocols for Advanced
Networks (SPAN).
Introduction
The present document provides information on the TETRA ITSI. The ITSI is similar in structure to
ITU-T Recommendation E.212 [4] IMSI identity. In addition to providing background on the similarities and
differences between these two identities, the present document also describes each of the individual fields of the
TETRA ITSI.
In certain circumstances operators may have to relate these two resources together. Given the management of the
individual elements of the ITSI (the TETRA Mobile Country Code, the TETRA Mobile Network Code and the Short
Subscriber Identity), the present document describes how an approach taken by a National TETRA Numbering
Administrator, responsible for managing the TETRA MNC, might assist an operator in the use of both resources.
TETRA Mobile Country Codes (T)MCC are currently administered by the TETRA Memorandum of Understanding
(MoU) Group, an industry organisation, which has aligned the digital value of the (T) MCC with the
ITU-T Recommendation E.212 [4] MCC. An issue has been raised as to how countries know that these codes are
formally/legally assigned to the country allocated. Discussions are under way to move the administration of (T) MCC
resources to the ITU-TSB.
ETSI
5 ETSI EG 202 118 V1.1.1 (2003-05)
1 Scope
The present document provides guidance on the allocation and management of the country code and network code parts
of the Individual TETRA Subscriber Identity (ITSI) used in TETRA. It applies to all TETRA networks irrespective of
their interconnection arrangements. It includes guidance on the effect of dual mode operations with the GSM family of
systems on the allocation of TETRA codes.
The present document is intended primarily for use by National Numbering Plan Administrator and National TETRA
Numbering Administrator (NTNA) and network operators.
TR 102 300-5 [2] gives further information about the implementation of the ITSI and the various dialling arrangements
that may be used.
2 References
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 and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] ETSI EN 300 392-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 1: General network design". Clause 7 Addressing and Identities.
[2] ETSI TR102 300-5: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers'
guide; Part 5: Guidance on numbering and addressing".
[3] ITU-T Recommendation E.190: "Principles and responsibilities for the management, assignment
and reclamation of E-series international numbering resources".
[4] ITU-T Recommendation E.212: "The international identification plan for mobile terminals and
mobile users".
[5] ITU-T Recommendation X.121: "International numbering plan for public data networks".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
administration body: body responsible for the allocation and management of the TETRA Mobile Country Code,
currently the TETRA MoU Group
National TETRA Numbering Administrator (NTNA): body responsible for the national allocation and management
of the TETRA Mobile Network Codes
ETSI
6 ETSI EG 202 118 V1.1.1 (2003-05)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
...