ETSI TR 102 021-2 V1.3.1 (2010-12)

Terrestrial Trunked Radio (TETRA); User Requirement Specification TETRA Release 2.1; Part 2: High Speed Data

RTR/TETRA-01199

General Information

• Status: Published
• Publication Date: 21-Dec-2010
• Technical Committee: TCCE 1 - TCCE User Requirements / Services
• Current Stage: 12 - Completion
• Due Date: 23-Dec-2010
• Completion Date: 22-Dec-2010

Standards Content (Sample)

Technical Report
Terrestrial Trunked Radio (TETRA);
User Requirement Specification TETRA Release 2.1;
Part 2: High Speed Data
2 ETSI TR 102 021-2 V1.3.1 (2010-12)

Reference
RTR/TETRA-01199
Keywords
data, TETRA, user
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3 ETSI TR 102 021-2 V1.3.1 (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 . 7
3.1 Definitions . 7
3.2 Abbreviations . 7
4 User Requirement Specification . 8
4.1 High Speed Data (HSD) technology solution . 8
4.2 HSD applications . 8
4.2.1 Point-to-point HSD for non-voice applications . 8
4.2.2 Point-to-multipoint HSD for non-voice applications . 10
4.2.3 Voice over HSD . 10
4.3 Data rate capacity in addition to TETRA V+D . 11
4.4 RF coverage requirements for HSD . 11
4.5 Frequency spectrum efficiency requirements . 11
4.6 Integration of HSD with TETRA Release 1 V+D services . 12
4.7 Compatibility of HSD with TETRA Release 1 V+D services . 12
4.8 HSD call types . 13
4.9 Backward compatibility with TETRA Release 1 . 13
4.10 Migration from TETRA Release 1 . 15
4.11 Availability of HSD. 15
4.12 Relative importance of HSD user requirement criteria . 15
History . 17

ETSI
4 ETSI TR 102 021-2 V1.3.1 (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 2 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 102 021-2 V1.3.1 (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 the TETRA High Speed Data (HSD).
The URS is required by TC TETRA to guide the enhancement of the current TETRA standard, mainly the evolution of
the HSD standard part towards broadband.
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6 ETSI TR 102 021-2 V1.3.1 (2010-12)
1 Scope
The present document contains the User Requirements Specifications (URS) which are described in non-technical terms
and are based on an analysis of the results for High Speed Data from the TETRA Release 2 Market Questionnaire,
described in TR 102 021-1 [i.1], clauses 4.2 and 4.3, subsequent results from a joint ETSI/TETRA MoU High Speed
Data Workshop held in January 2002, and the Future of TETRA workshop held during the TETRA World
Congress 2007 [i.2]. This URS does not offer any technical solutions as they are considered the responsibility of
TC TETRA/WG4. The present document provides the user requirements for HSD translated into terms of:
• HSD applications and net data rates to support non-voice applications
• Data rate capacity in addition to TETRA V+D
• RF coverage requirements for HSD
• Frequency spectrum efficiency requirements
• Integration of HSD with TETRA Release 1 V+D services
• Compatibility of HSD with TETRA Release 1 V+D services
• HSD call types
• Backward Compatibility with TETRA Release 1
• Migration from TETRA Release 1
• Availability of HSD
• Relative importance of HSD user requirement criteria
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 2.1; Part 1: General overview".
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7 ETSI TR 102 021-2 V1.3.1 (2010-12)
[i.2] ETSI TR 102 621: "Terrestrial Trunked Radio (TETRA); TWC2007 Future of TETRA workshop
report".
[i.3] ETSI TR 102 745: "Reconfigurable Radio Systems (RRS); User Requirements for Public Safety".
[i.4] Analysys Mason/TETRA Association (March 2010): "Public safety mobile broadband and
spectrum needs".
NOTE: Available at www.tetra-association.com.
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
conventional access: HSD access method introduced in TETRA Release 2 where the control channel is on a TETRA 1
bearer
NOTE: This means that each HSD cell have at least one TETRA 1 bearer even if all terminals would use only the
HSD service.
direct access: HSD access method introduced in TETRA Release 2.1 where the control channel messaging is done on
the HSD bearers
High Speed Data (HSD): net data rates in excess of 28,8 kbit/s being the current capability of TETRA Release 1
TETRA Release 2: Work Programme within ETSI Project TETRA to enhance the services and facilities of TETRA in
order to meet new user requirements, utilize new technology and increase the longevity of TETRA within the traditional
market domains of PMR and PAMR
TETRA Release 2.1: Work Programme within TC TETRA to enhance the services and facilities of TETRA in order to
meet new user requirements, utilize new technology and increase the longevity of TETRA within the traditional market
domains of PMR and PAMR
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ANPR Automatic Number Plate Recognition
ECG ElectroCardioGram
GoS Grade of Service
HSD High Speed Data
kbit/s kilo (thousand) bits per second
MoU Memorandum of Understanding
MS Mobile Station
PAMR Public Access Mobile Radio
PMR Private Mobile Radio
RF Radio Frequency
SwMI Switching Management Infrastructure
TC Technical Committee
TEDS TETRA Enhanced Data Service
TIP TETRA Interoperability Profile
TMO Trunked Mode Operation
URS User Requirement Specification
V+D Voice and Data
VoIP Voice over Internet Protocol
WAP Wireless Application Protocol
WG Working Group
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8 ETSI TR 102 021-2 V1.3.1 (2010-12)
4 User Requirement Specification
4.1 High Speed Data (HSD) technology solution
The HSD technology solution selected by WG4 will be based on a technology that best meets the User Requirements as
described in this URS, balanced against any technology constraints identified in WG4 from the candidate technology
proposals submitted into WG4 for HSD standard consideration.
4.2 HSD applications
4.2.1 Point-to-point HSD for non-voice applications
The net data rates to support non-voice applications on HSD are listed in table 1. For ease of understanding
requirements, the table has been sorted in order of net data rates. It is important to note that the original list of HSD
applications was derived from the work done by WG1 in May 2001 and from a joint ETSI/TETRA MoU High Speed
Data Workshop held in January 2002. The list did not take into consideration the needs of other TETRA and PMR users
organizations who did not participate in the questionnaire, workshop, or WG1 work in early 2001. The table has been
updated for Release 2.1 based on e.g. Public Safety user requirements gathered by RRS [i.3] and a paper published by
the TETRA Association in 2010 [i.4].
The table focuses on net transfer needs as gross bandwidth requirements depend on the technology chosen. For
example, mainstream public mobile communications technologies often use a significant amount of bandwidth for error
correction to provide a reasonable service at cell edge etc. The '2005 Voice % impact' column in table 1 indicates how
the 2002 workshop expected introduction of the named service to impact on voice capacity requirements by 2005,
i.e. if an application would have been expected to halve the voice requirement the entry would be -50 %. This column is
empty for those applications that were not included in the 2002 workshop.
Table 1 has been updated for Release 2.1 where indicated.
Table 1: Net data rates to support non-voice applications
Applications 2005 Size Size Transfer Rate Application Notes
Voice % (kByte) (kbit) time (s) (kbit/s) group
impact
Location Services -2 % 0,1 0,8 1 0,8 Real time
short data
Telemetry (real time transfer) 0 % 0,2 1,6 0,5 3,2 Real time
short data
Operation and control 0 % 0,2 1,6 0,5 3,2 Real time
short data
Biodynamic vital data sampling, 0 % 5 40 10 4 Real time
inc. ECG short data
Telemetry (Real time - 5 kbyte) 0 % 5 40 10 4 Real time
short data
WAP/on-line forms 0 % 3 24 5 4,8 Database
Interaction
ANPR - text and picture of the 3,8 30,4 4 7,6 File transfers
number plate
ANPR - response (downlink) 2 16 2 8 File transfer
People and Vehicles -2 % 1 8 1 8 Real time
status/location/messaging(1 kbyte) short data
Data tasking e.g. command and -5 % 5 40 5 8 Database
control/work management Interaction
Fingerprint data abstracted from 0 % 10 80 10 8 File transfer
the fingerprint image
Remote controlled devices   low Remote Not including
control image transfer
Content Push (10 kbyte) 1 % 10 80 4 20 File Transfer
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9 ETSI TR 102 021-2 V1.3.1 (2010-12)
Applications 2005 Size Size Transfer Rate Application Notes
Voice % (kByte) (kbit) time (s) (kbit/s) group
impact
Interagency Communications inc. 0 % 10 80 4 20 File
Intranet (10 kbyte) Transfer/Office
Application
Database inquiries 10 kbyte to 0 % 12,5 100 5 20 Database
100 kbyte Interaction
Mobile computing - office 0 % 12,5 100 5 20 Office
applications Application
Connect to hospitals and national 0 % 100 800 20 40 File Transfer
health comm. network
Connect to hospitals and national 1 % 50 400 10 40 Office
health comm. network Application
Internet incl. web browsing 0 % 50 400 10 40 Office
10 kbyte to 50 kbyte (per page) Application
Sensor networks  delay a medium Image transfer
few
seconds
ANPR - picture of the car 25 200 4 50 Image transfer
Graphics, maps, location -1 % 125 1 000 20 50 Image
100 kbyte to 1 Mbyte Transfer
Video Conferencing 64 kbit/s 0 %  64 Video Transfer
Image transfer 0 % 100 800 10 80 Image
Transfer
(image JPEG ± 50 kbyte)
Fingerprint image 0 % 100 800 10 80 Image
Transfer,
Video streaming (surveillance) 0 %  delay a high Video Transfer Previously
few 50 kbit/s
seconds
e-mails incl. Attachments 2 Mbytes 0 % 2 000 16 000 60 267 File Transfer Previously
300 s and
53 kbit/s
Video clips 1 Mbytes to 2 Mbytes 0 % 2 000 16 000 32 500 Video Transfer

From the table it can be seen that a significant percentage of applications can be supported with net data rates of
80 kbit/s and below. Some as yet undefined applications may require higher data rates. Higher data rates may also be
required to improve transfer time of applications identified above. Many of the listed applications could also be
supported on a V+D network.
Although the information provided on this table is useful, it is important to note that the mix of applications supported
on a network and the amount of non voice traffic is unknown. When the use of mobile data applications over TETRA
becomes daily routine, the available data speeds and capacity will quickly be exhausted even with low speed
applications. Therefore, the net speed of the air interface should be calculated based not only on the top speeds required
by the applications listed, but also thinking of how to cope if there are several users requiring the fast service plus other
users requiring a slower service simultaneously within a small area.
For example, in the UK normally an Automatic Number Plate Recognition (ANPR) mobile camera is set to only send
the picture of the licence plate and a text file including the interpretation, date, time etc. But it may be required that the
the picture of the vehicle is sent too, within the same time given. If situated next to a busy motorway (more than one
vehicle per second) this setup alone would create a steady near real time uplink bandwidth requirement of close to
100 kbit/s.
It is also important to note that the applications listed could be rationalized further within categories. However, as the
GoS requirements (transfer time in seconds as shown in the table) vary between the identical applications, their
individuality has been retained.
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10 ETSI TR 102 021-2 V1.3.1 (2010-12)
Lastly, it should be remembered that as the mainstream data technologies move towards web based applications that are
not bandwidth optimized due to ever increasing bandwidth available both in the fixed and wireless networks, the
applications to be run over TETRA are likely to be built in a similar manner to avoid paying significantly more for
special development tools and environments. This in turn will increase the true amount of bits transmitted per
transaction sometimes significantly.
The feedback from the 2007 workshop [i.2] places "increased speed, capacity, and efficiency of TEDS" to the number 1
position in almost all participant categories, only being left second in a couple, behind "RF coverage compatibility
between TETRA V+D and TEDS". This is a clear indication of the general feeling that TEDS as defined for Release 2
will not cover future needs when it comes to speed, capacity, and efficiency of the HSD service and more is required.
4.2.2 Point-to-multipoint HSD for non-voice applications
Although a typical use case, point-to-point communication is not the only data need the users have. Especially user
organisations working on group basis, e.g. police in many cases, have a need to inform several people at virtually the
same time. The most effective way of doing this is to utilize point-to-multipoint functionality, instead of sending the
same information multiple times using point-to-point functionality. TETRA supports group addressed short data
messaging already in Release 1 and to take full advantage of the enhanced data rates Release 2.1 brings,
point-to-multipoint HSD is required.
...