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Webinar: LTE Money Matters – VoLTE and Roaming

Webinar: LTE Money Matters – VoLTE and Roaming. Seamus Hourihan Senior Vice President, Marketing & PLM Acme Packet. Dan Warren Director of Technology GSMA. Pradeep Bhardwaj Technology Director R&D Syniverse Technologies. Tracy Ford Executive Editor RCR Wireless News.

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Webinar: LTE Money Matters – VoLTE and Roaming

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  1. Webinar: LTE Money Matters – VoLTE and Roaming Seamus Hourihan Senior Vice President, Marketing & PLMAcme Packet Dan Warren Director of Technology GSMA PradeepBhardwaj Technology Director R&D Syniverse Technologies Tracy Ford Executive Editor RCR Wireless News

  2. LTE – Roaming and Voice Text Dan Warren, Senior Director of Technology GSMAdwarren@gsm.org 130 operator commitments to LTE GSM family of technologies creating ecosystems worldwide

  3. Proof of Concept Standards Roaming Interconnect Voice Who has done what – Industry Forums Business Requirements Test and Certification

  4. GSMA activity in LTE • Next Generation Roaming and Interoperability (NGRAI) • Evolved Packet Core (EPC) interfaces differ from those in PS Domain – GTPv2, MIP, Diameter inter-PCRF (S9) and HSS (S6a, S6d) • New technical Home <-> Visited interface definitions needed • Reflection of these changes into framework contracts • Voice over LTE (VoLTE) • LTE is an all-IP mobile network - No support for ‘traditional’ CS domain voice. • GSMA VoLTE initiative established to define a single, voice implementation to allow interoperability, roaming, ecosystem and economy of scale.

  5. Principles of VoLTE • For any system to become truly interoperable and to generate economies of scale and ecosystem characteristics, a number of factors need to be in place. • It needs to be widely backed – VoLTE was supported by 20 operators at launch, now have 40 active operators and around 30 vendors. • It needs to identify open interfaces to enable implementation by any party – VoLTE has defined UNI, NNI and roaming interfaces.

  6. VoLTE - timeline • Commercial Framework templates, Sep 2011 • Roaming Architecture, Jan 2011 • Roaming Call Scenarios, Apr 2011 • UNI defn April 2010 • NNI defn June 2010 • LIVE VoLTE NETWORKS 2012 20102011 • GSMA and MSF VoLTE test event, Sep 2011 • GSMA VoLTE initiative announced at MWC Feb 2010 • GSMA VoLTE Demo with CSL at MAC, Nov 2010 • GSMA VoLTE handset call demo with Verizon at MWC, Feb 2011

  7. LTE Money Matters – VoLTE and Roaming15 March 2011 – RCR Wireless Webinar Pradeep Bhardwaj Technology Director – R&D, Syniverse Technologies Chairman – GSMA HPIG +44-772-558-2624

  8. High Level Architecture VPMN HPMN PDN UTRAN 1 UE GERAN GGSN SGSN 2G/3G 2 UE GGSN PDN Rel. 8 MME P-CSCF S-CSCF UE PDN-GW E-UTRAN 3 S-GW P-GW PDN UE eNodeB 4 1 Local Breakout – 2G/3G - Pre Rel.8 2 Home routing – 2G/3G - Pre Rel.8 PDN 3 Local Breakout – LTE/SAE Rel. 8 4 Home routing – LTE/SAE Rel. 8 IMS

  9. LTE Roaming Signaling & Bearer Flows HSS MME Diameter Diameter Proxy Diameter Syniverse IPX IMS IMS SIP SIP PDN Gateway Serving Gateway GTP/PMIP GTP/PMIP Visited Network Home Network

  10. Target Voice-over LTE Roaming Architecture Mb /

  11. IPX – The Focal Point in LTE Today GRX supports GRPS, EDGE, 3G, HSPA data roaming and MMS interworking No inherent support for LTE or IMS Only specified for use by mobile network operators No required support for QoS Developed by GSMA to foster open standardized IP connectivity for multiple types of service providers Provides for end-to-end QoS in support of both roaming and interworking for LTE and IMS Fully backward compatible with GRX networks Used by MNOs, FNOs, ISPs and ASPs Pivotal point of the whole LTE ecosystem

  12. Voice-over-LTE Interfaces on IPX HPMN - VPMN • Mobility Mgmt • HSS to MME S6a Diameter (supersedes MAP-SS7) • Policy and Charging Rules • hPCRF to vPCRF S9 Diameter • IMS Signalling • P-CSCF to S-CSCF Mw SIP HPMN – Interconnect • IMS Signalling • S-CSCF(a) to S-CSCF(b) Mm SIP VPMN – Interconnect • IMS Media • IMS AGW(a) to IMS AGW(b) Mb RTCP/RTP

  13. Role of Syniverse IPX in LTE/SAE • Interconnect-NNI and Roaming-NNI for LTE • NNI & physical connectivity for GTP & PMIP interfaces • GTPc-v2, GTPc-v1, GTPu-v1, PMIP, MIP • NNI & physical connectivity for Diameter-based interfaces • S6a, S6d, S13, S13’ • S9, S7, Gx, Gxc, Gxd, Rx, Gy • NNI & physical connectivity for new “Diameter Routing” architecture for Roaming Hub for LTE • Inter-IMS NNI & physical connectivity for SIP interfaces • Mw, Mm, Mb

  14. Role of Syniverse IPX in LTE/SAE • Separation of GTP-c signalling for Bilateral & Roaming Hub traffic • Separation of Diameter signalling for Bilateral & Roaming Hub traffic • Diameter interfaces to Online & Offline Charging Systems • IMS and Non-IMS environments • Support for Diameter-MAP IWF if needed • IP-v4/IP-v6 interworking

  15. VoLTE Architecture Summary • VoLTE architecture work nearly complete • UNI: GSMA PRD IR.92 complete • NNI: IPX defined as Interconnect- & Roaming-NNI • Roaming: GSMA PRD IR.88 complete • IMS-NNI: GSMA PRD IR.65 available • Ongoing items • 3GPP-OMR or IP-based Optimal Routing – Consensus emerging • VoLTE Charging Requirements identified • Main issues identified: • Visibility into information required for Charging when media traverses separately from signalling • Cascading of commercial principles • Possible architecture options/choices currently discussed

  16. LTE roaming and VoLTEsession delivery requirements

  17. LTE roaming basics HSS PCRF PCRF MME Subscriber Data 4 Roaming border Visited network Home network 1 Attach 2 2 Authenticate Authenticate Update Location 3 Policy exchange 5

  18. LTE roaming challenges MNO 1 MNO 2 • Service reach - Diameter interoperability • Security • Routing • Performance – transactions/sec • Cost – CAPEX & OPEX IPX A MNO 4 MNO 3 Visited network Home network S9 MNO 5 MNO 6 IPX B S6a MNO 8 MNO 7

  19. Policy exchange controller solves LTE roaming challenges MNO 1 MNO 2 • Interoperability • AVP manipulation & filtering • IWF - SCTP-TCP. IPv6-IPv4 • Security • Overload & DoS/DDoS protection • Access control – AVP lists • Authentication & verification – IMSI-PLMN, mutual certificates, IMSI range blocking • Routing • Subscriber authentication (home MNO & IMSI-HSS) • Preferred roaming partner • PCRF load balancing IPX A MNO 4 MNO 3 MNO 5 MNO 6 IPX B Standards • RFC 3588 Diameter agent (relay or proxy) • 3GPP Diameter Routing Agent (DRA) • GSMA Diameter Edge Agent (DEA) MNO 8 MNO 7

  20. VoLTE session delivery challenges • Voice is different from data • Service availability/reliability • Minimal latency & jitter • Highly peer-peer • Trust • Regulatory compliance • Not just voice - presence-enabled interactive video, IM, collaboration • Service accessibility • Any access network, any device; • Roaming • 3G fallback for voice • Physical deployment • Right scale at right time • Cost - CAPEX, OPEX, backhaul IMS/NGN data centers Cx/Dx ISC Rf Mw e2 Other IPnetworks Rx Rx/Rq Transport backbone Gm Gm EPC FTTxxDSLCableLeased line Internet CS UTRAN eUTRAN Fixed line LTE 3G

  21. Session border controller solves VoLTE access challenges IMS/NGN data centers • Service reach • Ubiquitous access - LTE, fixed, Internet • Protocol translations, fix-ups & transcoding • IPv4-v6 IWF • 3G fallback - integrated ATCF, ATGW • Roaming support – V-PCSCF • NAT traversal - fixed line • Security - overload & DoS/DDoSattack protection • QoE • Admission control - bandwidth (PCRF Rx) & signaling constraints • Transport control – prioritization, media release, optimal routing • QoE reporting • Regulatory compliance • Emergency services – E-CSCF • Lawful intercept • Revenue & cost management • Integrated functions • Virtualization - multiple services • Charging interface - Rf Cx/Dx ISC Rf Mw e2 Other IPnetworks Transport backbone Rx/Rq AggregationPoP Rx Gm Gm EPC FTTxxDSLCableLeased line Internet CS UTRAN eUTRAN LTE Fixed line 3G

  22. LTE voice and data roaming • Interconnect SBCs • Interoperability – signaling and media • Security • SLA assurance – QoE • Cost - SBC–PEC integration Home Visited Services & apps IPX Core transport S6a Internet S9/S6a S9 S9 Aggregation PoP (EPC) S6a Access eUTRAN eUTRAN SIP signaling SIP media Packet data Diameter 22

  23. Net-Net • VoLTE and LTE roaming introduce new requirements for trusted, first-class session delivery • Security • Interoperability • QoE • Revenue & cost management • Regulatory compliance • SBCs and PECs play critical roles in satisfying LTE session delivery requirements Under embargo until Feb 14, 2011

  24. The leader in session delivery network solutions for trusted, first-class, next-generation voice, data & unified communications services

  25. Questions? – submit via control panel Want to learn more? Meet Acme Packet at Booth 1814 or visit www.acmepacket.com/mobile Free whitepaper: Policy Exchange Controllers: Enriching Diameter Signaling for LTE & IMSwww.acmepacket.com/policyexchangecontrol

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