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Critical Communications World, 21st-24th May 2013 1 © 3GPP 2012 © 3GPP 2013 LTE Standards for Public Safety – 3GPP view Balazs Bertenyi Chairman of 3GPP.

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Presentation on theme: "Critical Communications World, 21st-24th May 2013 1 © 3GPP 2012 © 3GPP 2013 LTE Standards for Public Safety – 3GPP view Balazs Bertenyi Chairman of 3GPP."— Presentation transcript:

1 Critical Communications World, 21st-24th May 2013 1 © 3GPP 2012 © 3GPP 2013 LTE Standards for Public Safety – 3GPP view Balazs Bertenyi Chairman of 3GPP TSG-SA

2 Critical Communications World, 21st-24th May 2013 2 © 3GPP 2012 © 3GPP 2013 Introduction Standards used for commercial cellular and critical communications have historically been separate New interest today in adapting LTE for critical communication and public safety applications 3GPP is working in collaboration with the critical communication industry to deliver standards

3 Critical Communications World, 21st-24th May 2013 3 © 3GPP 2012 © 3GPP 2013 Commercial cellular Benefits of vast success: Huge R&D investment and innovation Economy of scale High speed, multimedia Network capacity But: Not optimized for critical communications (Generally) no strong coverage obligations

4 Critical Communications World, 21st-24th May 2013 4 © 3GPP 2012 © 3GPP 2013 Critical communications Features: Robust Excellent group operation Priority control Direct mode But: Expensive due to limited volume Slower evolution than commercial cellular Etc,…

5 Critical Communications World, 21st-24th May 2013 5 © 3GPP 2012 © 3GPP 2013 Commitment to LTE National Public Safety Telecommunications Council Spectrum and US$7bn funding for LTE-based national US public safety network at 700MHz Started standards process in 3GPP Tetra + Critical Communications Association Committed to LTE for broadband critical communication systems

6 Critical Communications World, 21st-24th May 2013 6 © 3GPP 2012 © 3GPP 2013 3GPP Cooperation TC TETRA Requirements & Technical Input LTE Enhancements Preserve strengths of LTE while also adding features needed for public safety Maximise the technical commonality between commercial and public safety aspects Cellular Industry

7 Critical Communications World, 21st-24th May 2013 7 © 3GPP 2012 © 3GPP 2013 Striking a balance – the sliding scale More customization Less customization More COTS technology reuse Lower costs Faster standardization Less delivery risk More operating modes supported Performance (KPI) improvements Better support for “difficult” radio situations ?

8 Critical Communications World, 21st-24th May 2013 8 © 3GPP 2012 © 3GPP 2013 Public safety scope in 3GPP Radio Layer Features Frequency band support Power level support Radio enablers for system features Radio Layer Features Frequency band support Power level support Radio enablers for system features System Features Proximity services (ProSE) Group call on LTE enablers (GCSE_LTE) System Features Proximity services (ProSE) Group call on LTE enablers (GCSE_LTE)

9 Critical Communications World, 21st-24th May 2013 9 © 3GPP 2012 © 3GPP 2013 Allow devices in close proximity to communicate directly Reduce network load Increase capacity in given bandwidth Allow communication in areas without network coverage Proximity services objectives Also interest for consumer applications Public safety only From 3GPP TR 22.803

10 Critical Communications World, 21st-24th May 2013 10 © 3GPP 2012 © 3GPP 2013 Proximity services (ProSE) Cell Site Network Current LTE Communication Path

11 Critical Communications World, 21st-24th May 2013 11 © 3GPP 2012 © 3GPP 2013 Proximity services (ProSE) Cell Site Network 1 2 Network Assisted Discovery

12 Critical Communications World, 21st-24th May 2013 12 © 3GPP 2012 © 3GPP 2013 Proximity services (ProSE) Cell Site Network Direct Communication with Proximity Service

13 Critical Communications World, 21st-24th May 2013 13 © 3GPP 2012 © 3GPP 2013 Proximity services (ProSE) Cell Site Network Locally Routed Communication with Proximity Service

14 Critical Communications World, 21st-24th May 2013 14 © 3GPP 2012 © 3GPP 2013 Proximity services (ProSE) Cell Site Network User Equipment to Network Relay

15 Critical Communications World, 21st-24th May 2013 15 © 3GPP 2012 © 3GPP 2013 Enable efficient group communication Dynamic groups with mobile users and dispatchers Support for floor control (eg push to talk mode) Large groups (perhaps up to 5000) Low latency to add users, obtain channels Group call application is separate from the 3GPP system enablers Application is outside the scope of 3GPP Group call enablers objectives

16 Critical Communications World, 21st-24th May 2013 16 © 3GPP 2012 © 3GPP 2013 Group calling Dispatcher Cell Site Group Members ProSE Relay Cell Site Group Call Enabled LTE Network Group Call application sever

17 Critical Communications World, 21st-24th May 2013 17 © 3GPP 2012 © 3GPP 2013 Group call application/enabler split Split between application and LTE layers still being developed. Proposals: Application layer: group management, floor control decisions, legacy interoperability LTE layer: mobility, service continuity, radio efficiency Joint: performance, service interaction What is the nature of the APIs? Pure IP sockets? What is the application protocol? Something non-IP? G.C. Network ApplicationG.C. Handset Application 3GPP LTE Network Layers 3GPP LTE Handset Layers Network APIHandset API

18 Critical Communications World, 21st-24th May 2013 18 © 3GPP 2012 © 3GPP 2013 Work Item3GPP Release Work Item Document Reference Proximity-based Services Specification (ProSe) 12SP-120883 Group Communication System Enablers for LTE (GCSE_LTE) 12SP-120876 Public Safety Broadband High Power User Equipment for Band 14 for Region 2 11RP-120362 3GPP public safety work items http://www.3gpp.org/ftp/Information/WORK_PLAN/

19 Critical Communications World, 21st-24th May 2013 19 © 3GPP 2012 © 3GPP 2013 3GPP Phasing 3GPP Standards releases last 18-24 months Major work items typically span several releases Break complex problems in to solvable pieces Deliver minimum viable solution and enhance later Anticipate that public safety will span more than one release

20 Critical Communications World, 21st-24th May 2013 20 © 3GPP 2012 © 3GPP 2013 3GPP Release 12 roadmap 201320142015 June Requirements freeze (Postponed from March for public safety work) December Architecture freeze June Signalling freeze Release 12 Implementations available? Requirements Architecture Protocols Bug fixing Later phase enhancements….

21 Critical Communications World, 21st-24th May 2013 21 © 3GPP 2012 © 3GPP 2013 Migration and legacy interworking Commercial cellular industry has strong requirements on smooth technology migration and interworking The tighter the legacy interworking the more costly/complex the system Interworking requirements between Critical Communications Broadband and TETRA need to be carefully considered Common groups Voice migration (co-existence of VoIP and TETRA voice) Handset capabilities

22 Critical Communications World, 21st-24th May 2013 22 © 3GPP 2012 © 3GPP 2013 Participate in person Be visible Provide technical leadership Bring contributions Delivering architecture and radio standards Liaison statements are a poor substitute for knowledgeable people in the meeting We need your physical presence and active participation Take care to preserve meaningful reuse of COTS LTE technology 3GPP must balance priorities of all members Contributions drive the work

23 Critical Communications World, 21st-24th May 2013 23 © 3GPP 2012 © 3GPP 2013 Standards are one element in enabling a market 3GPP will deliver LTE enhancements for public safety in Release 12 Potential users need to also consider: Spectrum Regulation Application designs Legacy coexistence and migration strategies Handset and infrastructure ecosystem Work beyond 3GPP

24 Critical Communications World, 21st-24th May 2013 24 © 3GPP 2012 © 3GPP 2013 3GPP has started work on public safety standards Meet market needs in an interoperable manner 3GPP is cooperating with the public safety community Technical participation in Release 12 is needed Where to balance benefits of reuse Vs customization? New business opportunities with commercial mobile operators Interworking and migration need careful consideration LTE based public safety networks Use common off the shelf technology Improve on existing capabilities with broadband and multimedia Conclusion ?

25 Critical Communications World, 21st-24th May 2013 25 © 3GPP 2012 © 3GPP 2013 www.3gpp.org More Information about 3GPP: contact@3gpp.org Thank You ! Balazs Bertenyi Chairman of 3GPP TSG-SA

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