IMS Assuming an Important Role     on LTE    Alberto Boaventura      alberto@oi.net.br      0 31 21 8875 4998
Mobile Broadband Industry Consolidation                               2500 MM        Mobile Internet Accesses             ...
Mainframe-> Mini-> Desktop -> Smartphones/Tablets                                    5 convergence trends: MBB + Social   ...
Market is eager for more thoughput                                                                 Rel 9 HSPA+     Rel 10 ...
Web Based Services                                                                            Web Services:               ...
Traffic and Revenue decoupling    Rapid and consistent mobile broadband consolidation, air interface    technology advance...
IP Multimedia Subsystem                                                                                                 Co...
What is IMS role in LTE? GSM/GPRS/EDGE              Call Session Control, or core of IMS,                                 ...
Is LTE proper to transport voice services?                                                                                ...
Path to Support Voice and Legacy Services     Voice over                      CSFB                            VoLTE     CS...
What is Circuit Switch Fall Back (CSFB)?  LTE                   Uu                                                        ...
What is VoLTE?                                                                                     SCC AS  LTE            ...
What is VoLGA (Voice over LTE via Generic Access)?  LTE                   Uu                                              ...
Strengths & Weaknesses                            CSFB                               VoLTE                                ...
Concerns for VoLTE► Interconnection (ITX)    – It is imperative to standardize a technical model to be followed by      op...
But IMS is not VoLTE only             3GPP ICS (IMS Centralized Services)         3GPP MMTEL (Multimedia Telephony Service...
IMS Centralized Services                                                             SCC AS (Service Centralization & Cont...
IMS Centralized Services   Delivered Services         Access Network                    Transport &              IMS      ...
MMTEL (Multimedia Telephony Services)► MMTel is a global standard, specified in 3GPPTS 22.173  (Stage 1) and 24.173 (Stage...
RCS (Rich Communication Suite)► Project created by GSMA that represents a join industry effortin order to accelerate and f...
The overall IMS framework is still evolving                               2008-                 2008               2009   ...
Conclusions► Although MBB is consolidating and in will be the preferable Internet access, voice services  still represents...
Obrigado!Gracias! Thanks!Alberto Boaventura  alberto@oi.net.br  0 31 21 8875 4998
Upcoming SlideShare
Loading in …5
×

Lte Latin America 2011 Ims Assuming An Important Role On Lte V1.0

977 views

Published on

Presented in Informa LTE LATAM Forum 2011, it intends to provide an overview about voice service support in LTE and what is the IMS role in this new enviroment, passing through the alternative solutions for voice support in LTE.

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
977
On SlideShare
0
From Embeds
0
Number of Embeds
14
Actions
Shares
0
Downloads
43
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Lte Latin America 2011 Ims Assuming An Important Role On Lte V1.0

  1. 1. IMS Assuming an Important Role on LTE Alberto Boaventura alberto@oi.net.br 0 31 21 8875 4998
  2. 2. Mobile Broadband Industry Consolidation 2500 MM Mobile Internet Accesses surpass Desktop Internet Global Internet is still 2000 MM Accesses growing : 1.8B Users, +13% Y/Y 18.8T 1500 MM Minutes Spent, +21% Y/Y 1000 MM But, mobile will be 500 MM preferable access in 4 Years 0 MM 2007E 2008E 2009E 2010E 2011E 2012E 2013E 2014E 2015E Mobile Desktop Source: Morgan Stanley 2010 Revenue forecast per application type 2008-2015 Source: Ericsson 2010 The MBB is rapidly consolidating, and in couple years will be the preferable Internet access. Despite of that, voice services still represents the most important part of revenue, but it is being replaced by the new communication types … Diretoria de Engenharia e Operações – Planejamento Técnico
  3. 3. Mainframe-> Mini-> Desktop -> Smartphones/Tablets 5 convergence trends: MBB + Social Networking + Video + VoIP + usability in differentiated devices Mobile Internet Internet Desktop Mini 10 B+ Mainframe 1 B+ 100 MM+ 1 MM+ 10 MM+ 1960 1970 1980 1990 2020+ Source: Morgan Stanley 2010 The expressive Mobile Internet growth projection is justified by integration of functionalities (for personal use) in a single device, andbecoming in next years the preferential Internet device against desktops. Diretoria de Engenharia e Operações – Planejamento Técnico
  4. 4. Market is eager for more thoughput Rel 9 HSPA+ Rel 10 LTE TV 3D DL: 84 Mbps DL:> 1 Gbps HDTV UL: 23 Mbps BW: 100 MHz BW: 10 MHz LTE Advanced Rubust On-Demand Augmented Rel 8 HSPA+ Rel 8 LTE Gaming Reality DL: 42 Mbps DL: 326 Mbps UL: 11,5 Mbps UL: 86 Mbps Video P2P BW: 5 MHz 20 MHzConference Virtualization Visual Mbps+ Networking Rel 7 HSPA+ Mobile TV Internet DL: 28 Mbps Collaboration M2M UL: 11,5 Mbps BW: 5 MHz Music Games Mbps Social Rel 6 HSPA MMS Networks DL: 14 Mbps Email Mobile Web UL: 11,5 Mbps BW: 5 MHz EDGE Telemetry LBS/GPS kbps DL:237 kbps UL:59 kbps EMS IM GPRS SMS DL:80 kbps UL:20 kbps The operators are still intensively investing in network infrastructureand new band licenses in order to follow continuous market anxiety for more throughput. de Engenharia e Operações – Planejamento Técnico Diretoria
  5. 5. Web Based Services Web Services: • Lower Costs • Minimum Risk • Advertisement and Lower Tariff Business Model • Most important Telco threat Opeator Network: • OPEX Operator Transport Network • CAPEX • License Obligations SGSN/MME MSAN/AGW ONT Operator Customers: ONU modem • Contract Obligations • License Obligations • Customer Prospect Cost HSPA/LTE Wi-Fi FTTx xDSL • Price Competition But higher throughput enables services in the new web industry (over the top), impacting severely the traditional operator business models. Diretoria de Engenharia e Operações – Planejamento Técnico
  6. 6. Traffic and Revenue decoupling Rapid and consistent mobile broadband consolidation, air interface technology advances, machine type communication and new smart devices will bring a tsunami of IP data traffic. In the same time, high competition with lack technology barrier force a rapid service lifecycle and new services becomes mature quickly, with low profitability. Traffic Revenue Voice Dominant Data Dominant New challenge: how to be profitable in data era? Diretoria de Engenharia e Operações – Planejamento Técnico
  7. 7. IP Multimedia Subsystem Control New Service Creation User Data Self Provisioning Service Portal Transport Service Only!!! Billing IMS QoS Session Control Service Access Control Transpor t Network Transpor t Network Privacy and Security Multimedia Access Access Network Network Internet Access ONU ONU Transport Network HSPA/LTE FTTx HSPA/LTE FTTx Access Network IMS is the most impressive and complete framework that allows operator to offer differentiated services, controlled by network, guarantying customer service experience and investment value protection Diretoria de Engenharia e Operações – Planejamento Técnico
  8. 8. What is IMS role in LTE? GSM/GPRS/EDGE Call Session Control, or core of IMS, MSS GMSS Um BTS (SR-VCC) Policy & Charging Control, introduced at responsible for establishing, billing, event BSC (MGCF) coordination, media and resources beginning of IMS architecture, responsible PLMN/ controlling and service development in to manage properly the network resources PSTN/SS7 order to fulfill the serviceAand application A-Bis based on service level requirements. requirements. C/D C/D PCC gives to user applications the Mc IuCS In LTE, the IMS will replace the existing required and fair network resources based MGW switch offices in CS Domain. Gs/Gd/ HSS on service business requirements. Sv/SGs UMTS/HSPA/HSPA+ Gb GGSN Uu Gr Gc (P-GTW) Gn Internet Iub IuPS GTP-U Gi NodeB RNC SGSN (MME/SGW) Mg Cx Gm Gx LTE/EPS Mw Rx Uu There is no CS domain inPCRF The CS S-CSCF P-CSCF LTE. services, such as TDM calls and SMS, will Mw Gy S1 be replaced (or migrated to) by services ISC ENodeB under IP network environment. Ro AS I-CSCF OCS IMS IMS will not only enable the multimedia services, but this is one of the mostpowerful tool for capturing opportunities and any service lifecycle stage: Rating and charging services for developing compelling and competitive revenue models. Diretoria de Engenharia e Operações – Planejamento Técnico
  9. 9. Is LTE proper to transport voice services? 200kHz GSM/GPRS/EDGE 0 1 2 3 4 5 6 7 Um BTS MSS/MGW BSC PLMN/ Logical and physical channels are PSTN/SS7 structured in 8 TS, named TRX. The TRX A-Bis A capacity is 2,5 Erl @ 1% GoS C Services based on deterministic TDM network. HLR The spectral efficiency is 9 users per MHz UMTS/HSPA/HSPA+ Uu NodeB MSS/MGW RNC 3,84MHz PLMN/ Each 5MHz (3,84 MHz) carrier is able to PSTN/SS7 transport 125 voice channel. But the RF Iub Iu-CS C limitation this number is around 60 channels, that corresponds 47Erl @ 1% GoS HLR The spectral efficiency is 20 users per MHz 180 kHz LTE/EPS Uu Freq. MME/S/PGW TTI/2 PLMN/ IMS T. PSTN/SS7 S1 S1 Sgi/ There is no dedicated resources (channels) ENodeB Gm Cx/Sp for voice transport in LTE. The voice services are based on VoIP, and the capacity S6a is function of statistical multiplexing HSS premises. The spectral efficiency is 80 user per MHz Diretoria de Engenharia e Operações – Planejamento Técnico
  10. 10. Path to Support Voice and Legacy Services Voice over CSFB VoLTE CS Domain VoLGA Diretoria de Engenharia e Operações – Planejamento Técnico
  11. 11. What is Circuit Switch Fall Back (CSFB)? LTE Uu PLMN/ SGs PSTN/SS7 S1 SGs ENodeB MME/SGW/PGW MSC C HLR/HSS/AAA GSM/UMTS A/Iu-CS Um/Uu Abis/Iub BTS/NodeB BSC/RNC► Defined in 3GPP TS 23.272, represents a short term solution for voice and legacy services supporting in LTE network.► Consists to redirect from LTE network any service based on CS domain (voice or SMS) to 2G/3G network► Requires SGs interface activation for terminating services. Diretoria de Engenharia e Operações – Planejamento Técnico
  12. 12. What is VoLTE? SCC AS LTE TAS Uu PLMN/ IMS PSTN/SS7 S1 Gm/Rx/SGi PSTN ENodeB MME/SGW/PGW Cx/Sp I2/I3 HLR/HSS Sv/SGs AAA/SPR GSM/UMTS Um/Uu C PSTN Abis/Iub A/Iu-CS BTS/NodeB BSC/RNC MSC SR-VCC► VoLTE is a GSMA and 3GPP conjunction initiative, supported in 3GPP IMS recommendation framework, which architecture is defined IR.92 based on 3GPP TS 23.002 and TS 23.228.► 3GPP vision for voice service support in LTE► Needs Applications Servers for Service Centralization and Continuity (SCC), Telephony► The service continuity and handover are guaranteed by SR-VCC (Single Radio Voice Call Continuity), defined in 3GPP TS 23.216, using a special interface between MME and MSS, Sv, for call achoring. Diretoria de Engenharia e Operações – Planejamento Técnico
  13. 13. What is VoLGA (Voice over LTE via Generic Access)? LTE Uu PLMN/ PSTN/SS7 S1 SGi/Sv A/Iu-CS ENodeB MME/SGW/PGW VANC MSC D’ C HLR/HSS/AAA GSM/UMTS A/Iu-CS Um/Uu Abis/Iub BTS/NodeB BSC/RNC► Based on Generic Access Network interface defined in 3GPP TS 43.318 and 23.879 for CS services over PS domain.► Not totally standardized, and there is no formal references in 3GPP, however there is specific forum, with set of operators and suppliers participation: VoLGA Forum.► Needs a specific network element: VANC (VoLGA Access Network Controller).► Supports handover, but it needs huge integration job Diretoria de Engenharia e Operações – Planejamento Técnico
  14. 14. Strengths & Weaknesses CSFB VoLTE VoLGA No IMS investment Voice and data services can be No IMS investment delivered in the same network 3GPP standard, and widely Strengths supported in several vendors -> No need CS domain. no roaming problems Data sessions can be Requires IMS introduction or Not standardized by 3GPP interromped during the voice expansion calls. Only a single operator announced In the first moment will not be support ubiquitous and there will be Weaknesses Long call establishment time (at roaming problems. Needs terminal support. least 3 seconds more); Solves the problem for CS domain Não utiliza os benefícios da alta (legacy services) eficiência espectral do LTE; Diretoria de Engenharia e Operações – Planejamento Técnico
  15. 15. Concerns for VoLTE► Interconnection (ITX) – It is imperative to standardize a technical model to be followed by operators for network integration and interconnection: • User and control plan protocols • Visited and home network models • QoS • Service transparency – GSMA is working in a set of recommendations that are being synthesized in IR.34 and IR.88. – And in Brasil? And in Latin America?► Roaming – It is important to create business models in order to be consistent with financial and revenue sharing premises; – GSMA created an interconnection model called IPX (IP eXchange), GRX successor, for IP, VoIP and IMS interconnection services; – And in Brasil? And in Latin America? Diretoria de Engenharia e Operações – Planejamento Técnico
  16. 16. But IMS is not VoLTE only 3GPP ICS (IMS Centralized Services) 3GPP MMTEL (Multimedia Telephony Services) GSMA RCS (Rich Communication Suite) Diretoria de Engenharia e Operações – Planejamento Técnico
  17. 17. IMS Centralized Services SCC AS (Service Centralization & Continuity) AS► Specified in 3GPP TS 23.292, provides all service ICS User Agent redefinitions, including over CS domain, for CS Access Adaptation developing based on IMS. Service control funcionalities (I1): Registration, Call Control,Service Continuity► All network services are provided via IMS – Existing basic call and supplementary services – New multi-media services (MMTel, Video etc.) SCC AS► Allows legacy UE access ISC – Best effort service delivery – up to the UE SGSN/ capability GGSN Gm/I1 – Access adaptation – allows non-IMS UE to gain Sv access to IMS network CSCF I2 ISC► Fixed and Mobile Convergence MSS/MGW I3 – Agnostic to access network – Guaranties fixed and mobile unified services TAS Terminais (UE)► Roaming support ICS (Interface I1 & Gm support) – Industry standard Non ICS► Service continuity – Can be supported in different network and MSC Server operaors Must support I2 and I3 interface functioonalities► Needed for SR-VCC Diretoria de Engenharia e Operações – Planejamento Técnico
  18. 18. IMS Centralized Services Delivered Services Access Network Transport & IMS Application & IP Backbone Services Metro Ethernet VoIP Complete MMTEL Metro PCRF AS Boadband FTTx Ethernet QoS HLR/ IP Enriched services OLT HSS/AAA IPTV over IMS Real Time Services ONT x-CSCF PTSN Simulation Par de Fios TAS MSAN BRAS MGCF Rede 2G MGW Voice over CS Partial MMTEL SCC Low data rate IP Services BSC BTS BGCF Rede 3G Voice over CS (UMTS only) MMTEL VoIP Complete MMTEL RNC NodeB Boadband Core QoS MRFC IP Enriched services Mobile MRFP LTE/EPC IPTV over IMS Network Real Time Services PTSN Simulation IBCF IM SSF IBGF ENodeB MME/PGW Diretoria de Engenharia e Operações – Planejamento Técnico
  19. 19. MMTEL (Multimedia Telephony Services)► MMTel is a global standard, specified in 3GPPTS 22.173 (Stage 1) and 24.173 (Stage 3) for real time multimedia communications.► Establishes IMS service requirements for legacy CS domain services and ETSI TISPAN.► Provides, beyond CS Domain simulated basic and supplementary services, the following Internet services: – Chat: text message delivery – Speech conversation – Video communications – File (pictures, video clips, data files etc.) transfer – Point to point and point to multi-point communications – Dynamic session add-on and removal – Presence-enabled address book – Terminal capability adaptation – Location services► As standard, allows roaming between operators. Diretoria de Engenharia e Operações – Planejamento Técnico
  20. 20. RCS (Rich Communication Suite)► Project created by GSMA that represents a join industry effortin order to accelerate and fatcilitate the service and application adoption, allowing interoperability, convergence, enriched multimedia communication, advanced presence services based on IMS; Enriched Call Enhanced Voice calls with Messaging multimedia content Conversational sharing message experience Enhanced Phonebook Agenda Advanced presence functionalities Diretoria de Engenharia e Operações – Planejamento Técnico
  21. 21. The overall IMS framework is still evolving 2008- 2008 2009 2010 2011 EDGE E-EDGE DL:237 kbps DL:1,89 Mbps UL:59 kbps UL: 947 kbps Access Network Rel 7 HSPA+ Rel 8 HSPA+ Rel 9 HSPA+ Rel 10 HSPA+ DL: 28 Mbps DL: 42 Mbps DL: 84 Mbps DL: 168 Mbps UL: 11,5 Mbps UL: 11,5 Mbps UL: 23 Mbps UL: 23 Mbps BW: 5 MHz BW: 5 MHz BW: 10 MHz BW: 20/10 MHz Rel 8 LTE Rel 9 LTE Rel 10 LTE DL: 326 Mbps Self Organized DL:> 1 Gbps UL: 86 Mbps Network BW: 100 MHz 20 MHz LTE Advanced Core Network and IMS Rel 5 IMS EPC VoLGA OneVoice IMS Evolved Pack First Firs specification Operator Core & Common specification in in 2002 iniitiative IMS - Release 8 2009 Rel 7 MMTEL CS Fall Back ICS & SRVCC VoLTE GSMA First GSMA initiative First First specification in announced in specification in specification SR- 2002 february 2010. Rel.8 VCC Rel.8 Diretoria de Engenharia e Operações – Planejamento Técnico
  22. 22. Conclusions► Although MBB is consolidating and in will be the preferable Internet access, voice services still represents the most important part of revenue.► LTE provides high throughput with low latency that is excellent for data services, but it represents 10 times more spectrum efficiency than GSM for voice transport.► The operators are still intensively investing in network infrastructure and new band licenses in order to follow continuous market anxiety for more throughput. That enables other competitors beyond operator control from new Web Service industry.► IMS is the most impressive and complete framework that allows operator to offer differentiated services, controlled by network, guarantying customer service experience and investment value protection.► Besides, IMS will enable the VoIP over LTE technology, taking advantage of high spectrum efficiency, guarantying the user level experience and operator business premises.► IMS does not only enable the multimedia services (such as VoLTE, MMTEL and ICS), but it is one of the most powerful tool for capturing opportunities and any service lifecycle stage (PCC): Rating and charging services for developing compelling and competitive revenue models.► Interconnection and roaming technical and business model are pragmatic open issues that must be solved in next years. Diretoria de Engenharia e Operações – Planejamento Técnico
  23. 23. Obrigado!Gracias! Thanks!Alberto Boaventura alberto@oi.net.br 0 31 21 8875 4998

×