Tech trend for next generation critical communications


Published on

Tech trend for next generation critical communications

Published in: Technology, Business
  • Be the first to comment

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Tech trend for next generation critical communications

  1. 1. Bureau of Standards, Metrology & Inspection B4G 緊急通訊技術發展 (Tech Trend for Next Generation Critical Communications) Institute for Information Industry Speaker: Yi-Hsueh Tsai 2013/10/17
  2. 2. Outlines 1. Introduction a) Standard for wide range of users b) Commitment and 3GPP Cooperation c) Public Safety Requirements and Standards 2. Public Safety Requirements and Standards a) 3GPP public safety work items b) 3GPP standards availability c) GPP Release 12 roadmap 3. Work beyond 3GPP a) b) c) d) Legacy coexistence and migration strategies Handset and infrastructure ecosystem First Responder Network Authority Broadband Spectrum 4. Conclusion
  3. 3. Introduction • Standards used for commercial cellular and critical communications have historically been separate Public Warning System (EMTEL & 3GPP) Digital Mobile Radio eCall • New interest today in adapting LTE (ERM TG DMR) Non-voice Enhanced caller location for critical communication and Communication public safety applications Public Safety • 3GPP is working in collaboration Maritime Distress and Mobile broadband system Safety System TETRA Priority use of public with the critical communication network Satellite emergency communication industry to deliver standards Source: ETSI (ESG & 3GPP) (3GPP & EMTEL) (E2NA, EMTEL, MSG, BRAN & CABLE) (MESA & RRS WG4) (ERM TG26) (TETRA) (3GPP) (SES SatEC)
  4. 4. Standard for wide range of users An open standard where the focus is on meeting the critical communications needs of public safety and security agencies and an increasingly wide range of other market sectors. Government Oil & Gas Transport & logistics Utilities Commercial & Industrial Manufacturing
  5. 5. Critical communications vs Commercial Cellular Commercial cellular • Features: – Huge R&D investment and innovation – Economy of scale – High speed, multimedia – Network capacity • Benefits: – – – – More COTS technology reuse Lower costs Faster standardization Less delivery risk Critical communications • Features: – – – – Robust Excellent group operation Priority control Direct mode • Benefits: – More operating modes supported – Performance (KPI) improvements – Better support for “difficult” radio situations
  6. 6. Commitment and 3GPP Cooperation 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 Requirements & Technical Input LTE Enhancements • Preserve strengths of LTE while also adding features needed for public safety • Maximize the technical commonality between commercial and public safety aspects Cellular Industry Source: 3GPP SA Chair
  7. 7. Public Safety LTE gains momentum William Jackson portrays LTE as a „known‟ part of the future U.S. nationwide public safety network, as specified by the First Responder Network Authority. This article describes the LTE standard as holding ‘…the promise of an interoperable network based on non-proprietary, commercially available technology‟ and takes a look at how LTE fits in to the U.S. public safety environment. Why LTE is the next generation in wireless “ESMCP is keen to enhance the next generation of mobile technology – 4G Long Term Evolution – to deliver the functionality, coverage, security and availability required by U.K.,” said Russell. “ESMCP is planning to appoint a delivery partner in 2015 and hopes to start transition to the new service late 2016.” U.K. Preps for Broadband Mission-Critical Network
  8. 8. Public Safety Requirements and Standards e.g. eMBMS • Public safety imposes unique LTE Standards requirements that cannot all e.g. certain be satisfied with LTE priority & LTE QoS feature standards that are available Product from OEM today. An example of such a requirement is Mission e.g. mission Critical Voice, which critical voice Commercial includes Push to Talk (PTT), LTE Network off-network operation, and a Source: variety of related functions. NPSTC • As LTE standards continue to evolve, and organizations such as FirstNet participate in the 3GPP standards processes to drive desired capabilities, more of the public safety requirements can be satisfied with products based on these standards.
  9. 9. 3GPP public safety work items Work Item Study on Resilient E-UTRAN Operation for Public Safety (FS_REOPS) Proximity-based Services Specification (ProSe) 3GPP Work Item Release Document 13 SP-130240 12 SP-130030 RP-122009 Group Communication System Enablers for LTE (GCSE_LTE) 12 SP-130326 Public Safety Broadband High Power User Equipment for Band 14 for Region 2 11 RP-120362 Source: 3GPP
  10. 10. Proximity-based Services Allow devices in close proximity to communicate directly 1. Reduce network load 2. Increase capacity in given bandwidth 3. Allow communication in areas without network coverage Network Network Cell Site Current LTE Communication Path Cell Site Locally Routed Network Assisted Discovery Direct Communication Cell Site UE Relay
  11. 11. Group Communication System Enablers • Enable efficient group communication 1. 2. 3. 4. Dynamic groups with mobile users and dispatchers Support for floor control (e.g. push to talk) Large groups (perhaps up to 5000) Low latency to add users, obtain channels G.C. Network Application Network API 3GPP LTE Network Layers G.C. Network Application 2. 3. Dispatcher Group Call Enabled LTE Network Network API 3GPP LTE Network Layers • Group call application is separate from the 3GPP system enablers 1. Group Call application sever Cell Site Application layer: group management, floor control decisions, legacy interoperability LTE layer: mobility, service continuity, radio efficiency Group Members Joint: performance, service interaction UE Relay
  12. 12. Resilient E-UTRAN Operation Isolated E-UTRAN can be formed following: 1. Isolated E-UTRAN An Outage event within the infrastructure network Outage in the Infrastructure Network Mobile Command Post • • • • 2. 1 or more eNB(s) Transport connection between eNBs Backhaul Local EPC functions at eNB • Restoration of coverage for the group of eNBs Security between UE and eNB Security between eNBs Offer similar services seen prior to Outage event Deployment of Mobile Command Posts (MCPs) • • • •
  13. 13. 3GPP standards availability Release 12 draft standards and schedule WG Document Title Date SA1 TR 22.803 Study on Proximity-based Services 2011/09~2013/01 SA1 TS 22.115 TS 22.278 Service aspects; Charging and billing Service requirements for the Evolved Packet System (EPS) 2012/12~2013/06 SA2 TR 23.703 Study on architecture enhancements to support Proximity Services 2012/12~2013/09 SA3 TR 33.8xy Study on security issues to support Proximity Services 2013/03~2014/03 RAN1 RAN2 TR 36.843 Feasibility Study on LTE Device to Device Proximity Services Radio Aspects 2012/12~2014/03 SA1 TS 22.468 Group Communication System Enablers for LTE 2012/06~2013/12 SA2 TR 23.768 Study on architecture enhancements to support Group Communication System Enablers for LTE 2013/02~2013/09 Release 13 draft standards and schedule WG Document SA1 TR 22.897 Title Study on Resilient E-UTRAN Operation for Public Safety Date 2013/07~2014/06 Source: 3GPP
  14. 14. ProSe Feature Component Analysis (I) Service Continuity (ext1) RAN support (ext2) SA3 specification (G) UE to UE Relay (C) Direct 1:1 E-UTRA Comm., in coverage (D) Direct 1:many E-UTRA Comm., in coverage (A) Direct 1:1 E-UTRA Comm., out of coverage (H) UE to NW Relay (E) ProSe Comm Path via eNB (F) ProSe-assisted WLAN Direct (B) Direct 1:many E-UTRA Comm., out of coverage Source: 3GPP SA1/SA2 Chair
  15. 15. ProSe Key Components for Public Safety The most important public safety use case is: Group communication in areas where network coverage is unavailable or intermittent, for example, (a) very rural areas, basements, tower blocks etc., (b) during network outages In some of these scenarios the priority is local communication within a group of public safety users in proximity. In other scenarios the important thing is for users to be able to extend coverage (e.g. from a vehicle) to be able to link back to a control room. The following components are key for Release 12: (B) Direct 1:many E-UTRA Communication out of coverage (D) Direct 1:many E-UTRA Communication in E-UTRAN coverage – NPSBN Users may be outside of the range of the fixed network, such as first responders in a rural area assisting in a response to a plane crash or police officers inside a residence responding to a domestic issue. – Off-network voice communications must be immediately accessible to users in the absence of the NPSBN (H) UE to NW Relay – We use this often to extend vehicle-based coverage footprint to handheld devices. – Also key to public safety, we would like this to be included in R12 if a solution can be found Source: UK Home Office that does not add too much complexity to the rest of the work.
  16. 16. ProSe Reference Architecture Model ProSe APP LTE- Uu E -UTRAN PC 5 SGi S1 UE EPC LTE- Uu PC 4 ProSe APP UE PC 3 PC 2 ProSe Function PC 6 ProSe APP Server PC1: It is the reference point between the ProSe application in the UE and in the ProSe App Server. It is used to define application level signalling requirements. PC2: It is the reference point between the ProSe App Server and the ProSe Function. It is used to define the interaction between ProSe App Server and ProSe functionality provided by the 3GPP EPS via ProSe Function. PC 1 One example may be for application data updates for a ProSe database in the ProSe Function. Another example may be data for use by ProSe App Server in interworking between 3GPP functionality and application data, e.g. name translation. PC3: It is the reference point between the UE and ProSe Function. It is used to define the interaction between UE and ProSe Function. An example may be to use for configuration for ProSe discovery and communication. PC4: It is the reference point between the EPC and ProSe Function. It is used to define the interaction between EPC and ProSe Function. Possible use cases may be when setting up a one-to-one communication path between UEs or when validating ProSe services (authorization) for session management or mobility management in real time. PC5: It is the reference point between UE to UE used for control and user plane for discovery and communication, for relay and one-to-one communication ( between UEs directly and between UEs over LTE-Uu). PC6: This reference point between ProSe Functions in different PLMNs (when not roaming) may be used for functions such as ProSe Discovery between users subscribed to different PLMNs. Source: TR 23.703 v0.5.0
  17. 17. GCSE Feature Component Analysis (J) High Availability (ext1) SA2/ ProSe support (H) Resource Efficiency (K) Interworking ? (I) Roaming Scenarios (G) UE to NW Relay (E) User Interaction (ext2) RAN support (F) Service Continuity (D) Floor Control (L) UE-AS Open Interface (ext3) SA3 specification (C) Geographic Scope (B) Group Comm (TX,RX) (A) Group Management Source: 3GPP SA1/SA2 Chair
  18. 18. GCSE Key Components for Public Safety The key features delivered by existing systems, such as TETRA/P25 are: Simultaneous distribution of the same content to groups of users. Reliable and fast set-up of communications. Support for very large groups of users, either located in a small geographic area or widely spread geographically. The following components are key for Release 12: (A) Group Management Any aspects of this required to make core functionality work. (B) Group Communications (F) Service Continuity Service will not be usable without this. (H) Resource Efficiency Planned or unplanned major incidents may require group communications within a very large group in a small geographic area - requires good radio resource efficiency. (E) User Interaction Some aspects only; related to performance, immediate updating of group membership, all members receiving transmissions at the same time. Source: UK Home Office
  19. 19. GCSE Reference Architecture Model S1-MME MME GC4 P-GW S11 S5 SGi GC5 Media S1-U S-GW GCSE Application UE eNB GC3 Uu ProSe Communication GCSE Application UE UE GCSE Application GC1 MBMS GW GC2 SG-imb MuSe BM-SC SG-mb GCSE Application server GC1: It is the reference point between the GCSE application in the UE and in the application server. It is used to define application level signalling requirement to enable Multipoint functionality for GCSE_LTE, and possibly for session establishment and floor control usages, etc. GC2: It is the reference point between the GCSE AS and the MuSe function. It is used to define the interaction between GCSE AS and MuSe functionality provided by the 3GPP EPS layer. GC3: It is the reference point between the E-UTRAN and MuSe function. It is used to define the interaction between EUTRAN and MuSe function in order to achieve Multipoint functionality provided by the 3GPP EPS layer. GC4: It is the reference point between the MME and MuSe function It is used to define the interaction between MME and MuSe function in order to achieve Multipoint functionality provided by the 3GPP EPS layer. GC5: It is the reference point between the P-GW and MuSe function. It is used to provide DL unicast service by MuSe. Source: TR 23.768 v0.3.0
  20. 20. 3GPP Release 12 roadmap Requirements Architecture Protocols Bug fixing Later Phase Enhancements … 2012 2013 June 2014 Dec. Requirements Freeze (Postpone from March for Public Safety Work) 2015 June Signaling Freeze Architecture Freeze Release 12 Implementations Available? Source: 3GPP SA Chair
  21. 21. Work beyond 3GPP • Standards are one element in enabling a market – 3GPP will deliver LTE enhancements for public safety in Rel-12 • Potential users need to also consider – Legacy coexistence and migration strategies • Interworking requirement need to be carefully considered • Extension of PTT application with P25/TETRA to the LTE network – Handset and infrastructure ecosystem • Use of a commercial wireless carrier – Regulation • The „Middle Class Tax Relief and Job Creation Act of 2012‟ directs FirstNet to establish a single nationwide public safety broadband network. – Spectrum (ITU) • World Radio Conference - 2015 (WRC-15) is currently under preparation – Working Party 5A: allocations for PPDR (Public Protection and Disaster Relief) – Working Party 5D: WRC-15 agenda point 1.2 (organization of 700 MHz band) – Application designs
  22. 22. Legacy coexistence and migration strategies • The legacy coexistence is for the LTE network to interwork with P25/TETRA voice and low data-rate services such as short message. Cloud - based Applications including • This interworking enables interoperability and also provides the necessary migration path from P25/TETRA with an LTE overlay to a mission-critical LTE network running all mission critical services. Control Room Applications Single sign-on services (security) Communications services - including PMR/LMR applications Subscriber & group management, group calls, etc. TETRA, TETRAPOL, etc. PMR/LMR networks Non Mission Critical data (commercial LTE) Mission Critical Data (Private LTE) Mission Critical Voice (Private LTE) Upgrade Learn Build Migrate 1 2 3 4 Mission Critical voice Using commercial services Until LTE 3G/4G carriers readiness & maturity Source: Alcatel-Lucent/TCCA Strategic: requires spectrum for private LTE TIME / STAGE
  23. 23. BB system introduction and coexistence The application is focused on coexistence between Narrowband PMR systems and Broadband PMR systems. Narrowband systems for voice communications and low data rate communications: (1)TETRA, (2) TETRAPOL, (3) APCO 25 These systems are using 10 to 25 kHz bandwidths. For high data rate communications, LTE is the system that is targeted to be used for future PMR Broadband. Bandwidths of 1.4 MHz, 3 MHz, 5 MHZ, 10Mhz are considered. Source: Cassidian
  24. 24. Handset and infrastructure ecosystem LTE provides numerous benefits that make it attractive for partnerships between jurisdictions, and between public and private organizations. Experts predict there will be more partnerships as more public safety agencies begin moving forward with deployments. Financial benefits as shown in right figure, it is dramatically more cost-effective to build a network as part of a publicprivate partnership rather than on a standalone basis. -10% Source: Bell Labs
  25. 25. Use of a commercial wireless carrier In the US, it is expected that FirstNet will select an Internet Packet Exchange (IPX) provider to handle the connectivity between the NPSBN and the various commercial networks with whom NPBSN creates roaming agreements. NPBSN When roaming onto commercial networks, it may be desirable to route certain traffic, such as Internet traffic, locally in the commercial LTE network. Source: NPSTC Commercial LTE
  26. 26. First Responder Network Authority The „Middle Class Tax Relief and Job Creation Act of 2012‟ directs First Responder Network Authority (FirstNet), a new entity within NTIA, to establish a single nationwide, interoperable public safety broadband network. It will develop recommended technical requirements to ensure nationwide interoperability, based on the LTE standard. FCC will facilitate transition of public safety broadband spectrum (700 MHz D Block) to FirstNet. Source: FirstNet
  27. 27. Relationship between 3GPP and other SDOs Developing internet protocol specs Developing Recommendations Referring to specs ITU-R/T Input specs Developing Mobile application specs Developing Wireless LAN/MAN specs Cross reference of specs Requirements Referring to 3GPP specs (contributed by individual members) Cross reference of specs MRP Terminal certification based on 3GPP specs Partners of 3GPP Referring to 3GPP specs for the local specs Terminal Certification Organisational Partners EU Japan Korea China North America Source: 3GPP
  28. 28. ITU-R Study Group Meetings: Working Party 5D Research and Technology Trials WRC-2012 2011 2012 Standard WRC-2019 WRC-2015 2013 2014 2015 2016 Product R&D 2017 2018 2019 Deployment 5G 2020 2021 2022 Revisions to RR, Resolutions & Questions, Recommendations Reports ITU Member States (including Regional Groups, Informal Group) Final Acts RA Rec WRC RR Technical bases CPM Director RRB RRB: Radio Regulations Board SGs: Radio-communication Study Groups SC: Special Committee (Regulation & Proc.) RA: Radio-communication Assembly WRC: World Radiocommunication Conference Radiocommunication Bureau SGs & SC RofP Source: ITU & Huawei
  29. 29. Broadband Spectrum in America (Region 2) • United States was the first country to allocate Broadband Public Safety spectrum. • Initially 5+5 MHz spectrum was allocated by the USA for dedicated Broadband Public Safety spectrum. Earlier this year US Congress passed a law allocating the additional 5+5 MHz dedicated PSBB spectrum. • Recently Canada has also indicated its intention to follow a similar Source: ITU allocation
  30. 30. Broadband Spectrum in EMEA (Region 1) • Europe's 700 MHz digital dividend is only 30+30 MHz and all of this will be allocated to Public cellular operators. • Broadband PPDR spectrum in Region 1 may be found in Digital Dividend 2 which is expected beyond 2015 • Some countries in Europe are looking at some interim solutions in the lower frequency bands around 400 MHz. • However, sufficient broadband spectrum may not be available in those bands. Source: ITU
  31. 31. Broadband Spectrum in Asia (Region 3) • Many Asian countries will adopt APT band plan for 700 MHz Digital Dividend. • Some countries in Asia will allocate the Lower 10+10 MHz (703713/758-768) for Broadband PPDR. • The advantage of the lower portion is that it will provide buffer for the DTV below 698 MHz in terms of co-existence and protection to the TV services. Source: ITU
  32. 32. Other Broadband Spectrum Option • Some Asian countries (e.g. Australia, Singapore) are also looking at the 800 MHz band, which has been planned by 3GPP for LTE under Band 26. Within this band, any 10+10 MHz could be used for Broadband PPDR. • Some Region 3 countries are also considering use the US band plan. Within the US 700 MHz band, 3GPP Band 13 or 14 could be used for Broadband PPDR for which PSLTE devices are already available. • One Region 3 Country is considering 1.4 GHz Band while Some countries are also looking at 2.3 GHz IMT Band. Source: ITU
  33. 33. Conclusions • 3GPP has started work on public safety standards – Meet market needs in an interoperable manner – Technical participation in Release 12 is needed • LTE based public safety networks – Use common off the shelf technology – Improve on existing capabilities with broadband and multimedia • Work beyond 3GPP – New business opportunities with commercial mobile operators – Interworking and migration need careful consideration – ITU‟s Working Party 5A dealing notably with allocations for Public Protection and Disaster Relief (PPDR)
  34. 34. Reference 1. 2. 3. 4. 5. 6. 7. Radio Communications for Emergency Response and Disaster Relief ( EMPhAtiC – Standardization Strategy ( Public safety LTE: A How-to Guide (
  35. 35. Q&A