VoLTE - New Interconnection Models are coming
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The document discusses the challenges and developments related to Voice over LTE (VoLTE) interconnection models, focusing on the Brazilian context. It addresses current VoLTE roaming routing schemes, the necessity for regulatory frameworks, and opportunities for growth in the mobile market. The presentation highlights the importance of creating efficient interconnection solutions to enhance service delivery and support new business models in mobile telecommunication.
VoLTE - New Interconnection Models are coming
- 1. 1 Aberta TIM Brasil VoLTE: New Interconnection Models are coming... November 6th, 2014 Robson Esteves NETWORK INNOVATION II International Workshop on Challenges and Trends on Broadband Wireless Mobile Access Networks – Beyond LTE-A
- 2. 2 Confidential Targets This presentations aims to address the following points: • Focus on VoLTE/IMS NNI aspects (technical, strategic…) • Share the current VoLTE Roaming routing schemes defined and its main characteristics and challenges; • Highlight the necessity to start discussions about the future IMS/VoLTE Interconnection, considering the national context and interconnection rules currently defined in Brazil;
- 3. 3 Confidential VoLTE: New Interconnection Models and Challenges AGENDA VoLTE – Basic Concepts VoLTE Roaming Scenarios National Context and Open Points Who we are
- 4. 4 Confidential VoLTE: New Interconnection Models and Challenges AGENDA VoLTE – Basic Concepts VoLTE Roaming Scenarios National Context and Open Points Who we are
- 5. 5 Confidential TIM Brazil MOBILE MARKETING - GLOBAL LANDSCAPE Source: Merrill Lynch – Global Wireless Matrix 2Q14 (reference Data - 1Q14) | Top 5 + Brasil Brazil ranks fourth in the customer base and service revenues rankings. Even with 138% mobile penetration the market still offers opportunity for MOU, Data/ARPU and Smartphone penetration growth.
- 6. 6 Confidential TIM Brazil KNOWING TIM BETTER
- 7. 7 Confidential TIM Brazil CUSTOMER BASE EVOLUTION
- 8. 8 Confidential VoLTE: New Interconnection Models and Challenges AGENDA VoLTE – Basic Concepts VoLTE Roaming Scenarios National Context and Open Points Who we are
- 9. 9 Confidential VoLTE: Market Context VoLTE – Worldwide Market Status Committed and Live •Hong Kong •Japan •Korea, South •Singapore •United States of America Evaluating •Austria •Brazil •Bulgaria •Denmark •Estonia •Finland •Kuwait •Lithuania •Malaysia •Netherlands •Philippines •Poland •Russian Federation •Saudi Arabia •Slovenia •Sri Lanka •Switzerland •Taiwan Hot Prospects •Australia •Azerbaijan •Canada •China •France •Germany •India •Italy •Mexico •Norway •Spain •Sweden •United Arab Emirates •United Kingdom Early and Interested Markets •Afghanistan •Argentina •Chile •Colombia •Costa Rica •Croatia •Ecuador •El Salvador •Guatemala •Honduras •Lebanon •Nicaragua •Nigeria •Oman •Panama •Paraguay •Peru •Puerto Rico •Qatar •Slovakia •South Africa •Turkey •Uruguay •Venezuela Source: GSMA 02/10/2014 • ~70 Operators are in different stages: • 10 have launched VoLTE in: Hong Kong – HKT, 3 HK Singapore – Singtel South Korea – KT, LG U+, SK Telecom Japan - NTT DoCoMo US - ATT, Verizon Wireless, T-Mobile • ~40 are in the process of deploying VoLTE; • ~20 Operators are trialing VoLTE Source: BICS
- 10. 10 Confidential VOLTE DEVICES VoLTE: Market Context Galaxy Note 2 LTE SHV-E250S Galaxy Note 10.1 LTE 32GB Galaxy Note 3 SM-N900S Galaxy Note 3 SM-N9008V TD-LTE Galaxy Pop SHV-E220S Galaxy S3 LTE SHV-E210 (K,L,S) Galaxy Grand SHV-E270 (K,L,S) Galaxy S4 GT-i9507 / i9507V Galaxy S4 LTE SCH-R970C Galaxy S4 LTE SHV-E300 (K,L,S) Galaxy Mega 6.3 LTE SHV-E310S Galaxy S4 SHV-E330 LTE-A (K,L,S) Galaxy Golden SHV-E400 (K,S) Galaxy Win SHV-E500S Galaxy 4 Zoom LTE SM-C105S Galaxy Round LTE SM-G910S Galaxy S5 SM-G900 (A,D,F,P,R4,S,T) Galaxy S5 SM-G9006V Galaxy S5 SM-9008S Galaxy S5 SM-G9009 (D,M,V) Optimus LTE2 F160LV Optimus F180S Optimus Vu2 F200 (K,L,S) Optimus Vu3 F300 (K,L,S) Optimus GX F310L Optimus G2 F320S Optimus G Pro F240S Optimus LTE III F260S Optimus G Flex F340S Vega IM-R3 A850 (L,S) Vega No 6 IM-A860S Vega Iron IM-A870S IM-A880S Vega Secret Note IM-A890S Ascend D2 LTE Padfone X PF500KL Iphone 6 Source: GSA
- 11. 11 Confidential VOLTE & VoWiFi VoLTE: Market Context Source: http://www.apple.com/iphone-6/connectivity/
- 12. 12 Confidential VoLTE – Basic Concepts VoLTE – Standards (1/2) The GSMA VoLTE (Voice over LTE) initiative was formally announced on 15th February 2010. In establishing the VoLTE initiative, GSMA has adopted the work of the One Voice Initiative as the basis of the work to lead the global mobile industry towards a standard way of delivering voice and messaging services for Long-Term Evolution (LTE). Using IP Multimedia Subsystem specifications developed by 3GPP as its basis, GSMA have expanded upon the original scope of One Voice work to address the entire end-to-end voice and SMS ecosystem by also focusing on Roaming and Interconnect interfaces, in addition the interface between customer and network.
- 13. 13 Confidential VoLTE – Basic Concepts VoLTE – Standards (2/2) VoLTE/VoHSPA related key technologies and specifications are ready. Main focus in this presentation Source: Huawei
- 14. 14 Confidential VoLTE – Basic Concepts LTE Roaming Scenarios: Home Routed x Local Breakout (LBO) - Main Concepts Home Routed Local Breakout (LBO) • Home Routed: “similar” (in topology terms) that we have today in 2G/3G networks. • LBO: procedure that allows to access locally, services in the visited network, given opportunities for optimize latency and transport network usage between HPLMN and VPLMN.
- 15. 15 Confidential VoLTE – Basic Concepts LBO and IMS – 3GPP Scenarios (3GPP - TS 23.228) P-CSCF S GW V-PCRF S1-U Gx S9 Rx VPLMN HPLMN UE E-UTRAN PDN GW TrGW H-PCRF IBCF Rest of IMS core MRFP S-CSCF Gm SGi OR Mx Mx = UE’s IP point of presens (IP-PoP) = Media Ix 1: P-CSCF located in VPLMN P-CSCF S-GW V-PCRF S1-U Gx S9 Rx UE E-UTRAN PDN-GW H-PCRF Gm IMS Access GW SGi VPLMN HPLMN Rest of IMS core MRFP S-CSCF OR Mw = UE’s IP point of presens (IP-PoP) = Media Iq 2: P-CSCF located in HPLMN
- 16. 16 Confidential VoLTE - Basic Concepts IPX The internet Protocol (IP) Packet eXchange (IPX) Network is an inter-Service Provider IP backbone which comprises the interconnected networks of IPX Providers and General Packet Radio Service (GPRS) Roaming eXchange (GRX) Providers. An inter-Service Provider IP backbone network which connects Mobile Network Operators (MNOs), Fixed Network Operators (FNOs) Internet Service Providers (ISPs) and Application Service Providers (ASPs) . Source: GSMA IR.34
- 17. 17 Confidential VoLTE – Basic Concepts VoLTE VoLTE is more than just VOICE …….. VoLTE is an ENABLER !! Source: Bouygues Telecom
- 18. 18 Confidential VoLTE – Basic Concepts VoLTE Operator A Operator B Operator C NNI ??? ??? ??? The “VALUE” of this ENABLER depends also on how Telcos will provide these Services Across different Operators.
- 19. 19 Confidential VoLTE – Basic Concepts VoLTE OTTs? It’s done… Operator A Operator B Operator C TRANSPARENT
- 20. 20 Confidential VoLTE – Basic Concepts VoLTE Architecture – Main Components (SIMPLIFIED) and NNI’s CS Networks NNI NNI Specified in Brazil (for TDM) Not yet specified in Brazil (IP-IP for Multimedia Services) IP ACCESS LAYER (LTE RAN + EPC) IMS Core TAS AS 2 AS 3 Operator A IP ACCESS LAYER (LTE RAN + EPC) IMS Core TAS AS 2 AS 3 Operator B
- 21. 21 Confidential VoLTE: New Interconnection Models and Challenges AGENDA VoLTE – Basic Concepts VoLTE Roaming Scenarios National Context and Open Points Who we are
- 22. 22 Confidential VoLTE - Roaming Scenarios Roaming Subscriber From Operator A Roaming Subscriber From Operator B The media and signaling are routed directly between the two operators where the principle used is that home network delegates the routing to the visited network. Current CS Voice Roaming and Interconnection Model Source: NTT DoCoMo
- 23. 23 Confidential VoLTE - Roaming Scenarios Technically, the IMS/VoLTE framework , that is, an ALL IP infrastructure, allows more efficient media data routing (i.e. voice, video etc) strategies, as demonstrated in this scenario, improving latency, transport resources consumption etc . However, potentially, as several different IPX providers could be involved for different tasks – one transporting signaling and others media, it will not be possible for IPX operators that just transports media, to apply charge for voice calls on a time basis. Considering that GSMA positioned VoLTE as an extension to existing voice services, 3GPP developed additional routing schemes that are equivalent to existing circuit switching, allowing to replicate the existing voice charging rules, also for VoLTE calls. Roaming Subscriber From Operator A Roaming Subscriber From Operator B Scenario A: VoLTE Roaming with LBO and direct media routing Source: NTT DoCoMo
- 24. 24 Confidential Three key operational requirements have been identified: 1.Routing media for Voice & video over IMS (VoIMS includes IR.58, IR.92 and IR.94) when call originator is Roaming should be at least as optimal as that of current Circuit Switched (CS) domain. 2. The charging model for roaming used in CS domain shall be maintained in VoIMS. 3. Allow the HPMN to decide, based on service and commercial considerations & regulatory obligations, to enforce the routing of the traffic to itself (home routing). The development that addressed these issues was called R.A.V.E.L.1 – Roaming Architectures for Voice Over IMS with Local Break Out. (3GPP Release 11) A big target of this development was to provide routing schemes that guarantee that voice data flows and signaling flows should be routed on the same path. IR.65 ( IMS Roaming and Interworking Guidelines ) – Operational Requirements VoLTE - Roaming Scenarios 1- There is another initiative in GSMA, called REVOLVER, that is discussing others alternatives and new scenarios for VoLTE Roaming.
- 25. 25 Confidential Roaming Subscriber From Operator A Roaming Subscriber From Operator B Basic service-aware charging principles can be applied: • Voice as MoU • SMS as messages • All other IMS traffic as MB •‘Signaling loop’ between VPLMN and HPLMN A Charged? Scenario B: RAVEL Scheme I – VoLTE Roaming w/ LBO and media routed via HPMN B party Other aspects: • New function must be integrated – TRF (Transit & Routing Function) • Does not leverage HPLMN x VPLMN interconnect relationships for VPLMN routed traffic and reduces HPMN media control; • OMR (Optimal Media Routing) must be applied avoiding “tromboning media”. VoLTE - Roaming Scenarios Source: NTT DoCoMo
- 26. 26 Confidential Scenario C: RAVEL Scheme II – VoLTE Roaming w/ LBO and HOME ROUTED VoLTE - Roaming Scenarios Roaming Subscriber From Operator A Roaming Subscriber From Operator B Basic service-aware charging principles can be applied: • Voice as MoU • SMS as messages • All other IMS traffic as MB No TRF is needed. Some reasons to apply this model: • The calling party is subject to lawful interception which needs to be performed by the home operator; The HPLMN of the calling party needs to insert during the call, tones or announcements; It is cheaper for the home network to route the call to the destination. Source: NTT DoCoMo
- 27. 27 Confidential VoLTE: New Interconnection Models and Challenges AGENDA VoLTE – Basic Concepts VoLTE Roaming Scenarios National Context and Open Points Who we are
- 28. 28 Confidential National SMP (Mobile service) Interconnection - Current Regulation – Voice Services VoLTE - National Context and Open Points VIVO CLARO OI TIM CN A SDH / PDH Ntw VIVO CLARO OI TIM CN n SDH / PDH Ntw TDM Interconnections For each CN (National Area Code), potentially, we replicate these scenarios “n times”, consuming TDM resources, Network management, basic infrastructure, MSC/MGW interfaces etc. For STFC (Fixed service), there are many other interconnection points, considering the Local Area concept.
- 29. 29 Confidential “Some” Open Points / Suggestions for discussion: How will the IP-IP interconnection model in Brazil be designed to support the expected services over VoLTE infrastructure? (i.e.: voice, video, messaging, files transferring, etc) Will current interconnection models (“CN based” for SMP and “Local Area based” for STFC) be replicated also for IP? Which are the “best” routing schemes in Brazilian context? (considering: regulatory, geographic and economics aspects) Does it make sense to define different routing rules for different services? VoLTE - National Context and Open Points
- 30. 30 Confidential Some “practical” initial propositions (just promoting the discussions!) VoLTE - National Context and Open Points • Develop an interworking framework among MNOs; • Assure a seamless E2E service experience; • Define, develop and agree a VoLTE interconnection model. Retail and Wholesale • Evaluate regulatory and technical aspects related with different labeled communication streams (i.e. voice, HD voice, HD video, messaging, file sharing etc.); • Evaluate the regulatory issues related to pricing x Byte models in this context; Regulatory Scenario A NEW REGULATORY AND COMPETITIVE LANDMARK IS NECESSARY... and the discussion begins now
- 31. 31 Confidential 1 2 3 4 TIM is committed to QUALITY and MOBILE BROADBAND, leading the INNOVATION and the NEW. NEW 4G ECOSYSTEM will push the development of new services and applications that meet all SOCIETY. NEW BUSINESS MODELS and NEW REGULATORY LANDMARK are MANDATORY for this transformation. BRAZIL SHALL HAVE A NEW ROLE in worldwide LTE agenda, pushing the standards for a Brazilian reality. VoLTE - National Context and Open Points
- 32. 32 Confidential THANK YOU! (resteves@timbrasil.com.br)