Critical Comms Broadband standardization
in ETSI TC TCCE
Brian Murgatroyd
Chairman
ETSI TC TCCE
1
Agenda
Introduction
Rationale
Early work
User Requirements Specification
Security work
CCA Architectural reference model
CCA mobile to network interface architecture
CCA mobile to network interface specification
Critical comms workshop August 2014 Montreal
Introduction
ETSI TC TCCE (ex TC TETRA) changed its title and ToRs in 2013 in response to users needs to
have a technical body with the mandate to develop critical communications broadband
standards as well as continuing the development and maintenance of TETRA standards. This
was in part to be more inclusive and not confine any interfacing to narrowband legacy
technologies to TETRA
TCCE works closely with the TCCA (Tetra and Critical Communications Association) particularly
with the generation of requirements. This has given us much wider access to users and
operators than would have been possible within ETSI
TCCE have been working on critical communications broadband standardization since 2010
and the work is described in later slides
Critical comms workshop August 2014 Montreal
Rationale
It is our belief that critical communications should be provided as fully as possible at the
application layer, so that standard products can be used, allowing wide choices of networks
and terminals. Real competition engenders innovation and best prices
It is in the best interests of users, operators and industry if standards are produced as
efficiently and quickly as possible. Delay leads to the adoption of proprietary solutions with
consequent disadvantages
There are certain irreducible requirements that must be standardized if viable critical
communications systems are to be developed.
Critical comms workshop August 2014 Montreal
Early TCCE BB standardization work
Production of a service requirement document describing the spectrum needed for
critical communications broadband systems –ETSI TR102 628
Evaluation and quantification of BB functions in terms of spectrum requirements,
performance and network from the LEWP matrix of requirements
Original concept was to implement TETRA signalling over BB systems to provide CC
functionality
Concept then changed and LTE was accepted as the bearer of choice and other
narrowband PMR/LMR technologies embraced
Critical comms workshop August 2014 Montreal
User Requirements Specification
Comprehensive and consolidated user requirements specification was required
These are the formal reference documents from which the technical standards are
developed
Two documents have been produced:
• ETSI TR 102 022-1 V1.1.1 Mission critical Broadband Communications; Part 1,
Requirements published in 2012
• Takes many inputs: from TCCA, LEWP, transport for London, Rail, Utilities
• Maps data requirements against the capabilities of TETRA, TEDS and LTE
• Describes that the highest priority for police across Europe is for video at disaster
• ETSI TR 102 022-2 V0.0.6 Mission critical ETSI TR Broadband Communications; Part 2
Critical Communications Application, publication imminent
• Describes the reasoning behind the method of creating critical communications networks by
•
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using aplication layer interfaces on standard netwroks that have e.g Group Comms system
enablers
Describes 13 CCA interfaces which have been developed in the architectural refernce model
Describes all required CCA features
Critical comms workshop August 2014 Montreal
Study into security mechanisms for mission critical
broadband systems
A study into security systems appropriate for both an underlying broadband system (e.g. LTE)
and also for applications providing mission-critical services, including Group call and Direct
Mode (ProSe) services
It has been recognised that there are many security features that will be required by public
safety bodies in addition to those likely to be provided by standard LTE and these should
where possible operate at the application layer
Stable draft due - March 2015
Critical comms workshop August 2014 Montreal
Critical Communications architecture reference
model
Published as ETSI TR 103 269-1
Critical Communications
Architecture; Part 1 Critical
Communications Architecture
Reference Model
Describes the reference model
for a CCA and the various
interfaces between the entities
that provide a CC solution
operating over broadband IP
networks including but not
confined to LTE
Critical comms workshop August 2014 Montreal
Critical Communications Application mobile to
network interface architecture
This is the first priority CCA interface
Output will be an ETSI technical report describing the architecture and relevant entities for
the mobile to network interface of a CCA operating over a broadband IP interface
Stable draft imminent
Critical comms workshop August 2014 Montreal
Critical Communications Application mobile to
network interface specification
Output will be a harmonized ETSI Standard (EN) specifying the mobile to network interface
of a CCA operating over a broadband IP interface
Stable draft due - March 2015
Critical comms workshop August 2014 Montreal