1 Critical Comms Broadband standardization in ETSI TC TCCE Brian Murgatroyd Chairman ETSI TC TCCE

Critical comms workshop August 2014 Montreal 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 TR 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 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 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 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 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