ETSI TR 102 021-5 V1.2.1 (2010-12)

Technical Report
Terrestrial Trunked Radio (TETRA);
User Requirement Specification TETRA Release 2.1;
Part 5: Interworking and Roaming

2 ETSI TR 102 021-5 V1.2.1 (2010-12)

Reference
RTR/TETRA-01194
Keywords
interworking, roaming, TETRA, UR, user
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3 ETSI TR 102 021-5 V1.2.1 (2010-12)
Contents
Intellectual Property Rights . 4
Foreword . 4
Introduction . 4
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 7
4 User requirement specification . 7
4.1 Introduction . 7
4.2 Interworking . 9
4.2.1 Voice interworking requirements . 9
4.2.2 Data interworking requirements . 9
4.3 Roaming . 9
4.4 Service roaming . 10
4.5 Implementing technical requirements . 10
4.6 Timeline . 11
History . 12

ETSI
4 ETSI TR 102 021-5 V1.2.1 (2010-12)
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).
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.
Foreword
This Technical Report (TR) has been produced by ETSI Technical Committee Terrestrial Trunked Radio (TETRA).
The present document is part 5 of a multi-part deliverable covering the User Requirement Specifications (URSs) for
TETRA Release 2 and Release 2.1, as identified below:
Part 1: "General overview" (Release 2.1);
Part 2: "High Speed Data" (Release 2.1);
Part 3: "Codec" (Release 2);
Part 4: "Air Interface Enhancements" (Release 2.1);
Part 5: "Interworking and Roaming" (Release 2.1);
Part 6: "Subscriber Identity Module (SIM)" (Release 2.1);
Part 7: "Security" (Release 2.1);
Part 8: "Air - Ground - Air services" (Release 2);
Part 9 "Peripheral Equipment Interface" (Release 2.1);
Part 10: "Local Mode Broadband" (Release 2.1);
Part 11: "Over The Air Management" (Release 2.1);
Part 12: "Direct Mode Operation" (Release 2.1).
Introduction
The Terms of Reference for TC TETRA approved at ETSI Board meeting #69, November 2008 are to produce ETSI
deliverables (and maintenance thereafter) in accordance with the following requirements:
• The provision of user driven services, facilities and functionality as required by traditional Professional Mobile
Radio (PMR) user organizations such as the Emergency Services, Government, Military, Transportation,
Utility and Industrial organizations as well as Public Access Mobile Radio (PAMR) Operators.
• The evolution and enhancement of TETRA as required by the market with the provision of new services,
facilities and functionality made possible by new technology innovations and standards.
• Further enhancements of the TETRA standard in order to provide increased benefits and optimization in terms
of spectrum efficiency, network capacity, system performance, quality of service, security and other relevant
parameters.
ETSI
5 ETSI TR 102 021-5 V1.2.1 (2010-12)
• The backward compatibility and integration of the new services, facilities and functionality with existing
TETRA standards in order to future-proof the existing and future investments of TETRA users.
Technical Objective
TETRA is one of a number of digital wireless communication technologies standardized by ETSI.
ETSI TC TETRA produces standards and/or adapts existing standards for efficient digital PMR and PAMR voice and
data services, including broadband evolution.
The present document provides the User Requirement Specifications for interworking and roaming.
The URS is required by Working Group 3 (WG3) of TC TETRA to provide improved interworking and roaming
between TETRA networks and other TETRA networks and between TETRA networks and public mobile networks
such as GSM, GPRS and UMTS.
ETSI
6 ETSI TR 102 021-5 V1.2.1 (2010-12)
1 Scope
The user requirements contained in this URS are described in non-technical terms and are based on an analysis of the
results for air interface enhancements from the TETRA Release 2 Market Questionnaire, described in
TR 102 021-1 [i.1], clauses 4.2 and 4.3 and the Future of TETRA workshop held during the TETRA World Congress
2007, TR 102 621 [i.2]. The present document provides the user requirements for TETRA interworking and roaming.
The present document is applicable to the specification of TETRA Release 2.1 equipment.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
Not applicable.
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI TR 102 021-1: "Terrestrial Trunked Radio (TETRA); User Requirement Specification
TETRA Release 2; Part 1: General Overview".
[i.2] ETSI TR 102 621: "Terrestrial Trunked Radio (TETRA); TWC2007 Future of TETRA workshop
report".
[i.3] ETSI TR 101 448: "Terrestrial Trunked Radio (TETRA); Functional requirements for the TETRA
ISI derived from Three-Country Pilot Scenarios".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
interworking: where TETRA users on one system can comm
...