Overview of RCS and VoLTEDavid Hutton Director of Technology GSMA

© GSM Association 2011

David Hutton, Director of Technology, GSMA

The Voice challenge for LTEThe Voice challenge for LTE■ LTE is an all-IP mobile network

– No support for ‘traditional’ CS domain voice

■ Multiple Proposed Technical SolutionsIMS b d V i (“O V i ”)– IMS-based Voice (“One Voice”)

– CS-FallbackVoLGA – utilises 3GPP Generic Access Network– VoLGA utilises 3GPP Generic Access Network

– Over The Top Voice - OTT

■ The risk – industry fragmentation– Poor customer experience

N i l t ti– No common implementation– Economies of scale are lost– Threat to Global Roaming– Threat to Global Roaming

The Solution for Voice over LTEThe Solution for Voice over LTE

■ The Reality – the industry knows where it is going‘O V i ’ d ti GSMA V i LTE (V LTE) > IR 92– ‘OneVoice’ adoption as GSMA Voice over LTE (VoLTE) –> IR.92.

– Massive backing from operator and vendor community.– ‘Migratory solutions’ filling the gap between LTE launch and IMS deployment for Migratory solutions filling the gap between LTE launch and IMS deployment for

some operators.

– VoLTE – GSMA PRD IR.92 “IMS Profile for Voice and SMS”– UNI Profile defining the minimum mandatory set of requirements for UE and

Network to support for a high-quality IMS-based telephony service over LTE.Network to support for a high quality IMS based telephony service over LTE.– Based on 3GPP Release 8 standards (and some Release 9 e.g. Emergency

call)

Current status of Current status of VoLTEVoLTE

VoLTE launched in three networks – SKT, LG U+ and Metro PCSVoLTE launched in three networks SKT, LG U and Metro PCS– Many additional commitments to VoLTE for launch during 2013

Device implementation combines VoLTE with Wideband codec, Video, RCS

In the meantime other operators may launch first with CSFBIn the meantime, other operators may launch first with CSFB.– Delays in SR-VCC capability making CSFB a likely first Voice deployment for

many operators.– CSFB still viewed as sub-optimal interim solution - improvements in set-up time

for CSFB ongoing.PS handover (VoLTE < > VoHSPA) may prove to be the alternative to CSFB– PS-handover (VoLTE <-> VoHSPA) may prove to be the alternative to CSFB.

Everyone is heading to VoLTE – just taking different paths to get there.y g j g p g

Rich Communications Services OverviewRich Communications Services Overview

Innovative set of features beyond today’s Voice, SMS and MMS technologies

http://www.gsma.com/rcs/RCS Device Modes for telephony:-RCS Device Modes for telephony:-

– RCS-VoLTE, RCS-VoHSPA, RCS-AA, RCS-CS

What is What is joynjoyn™?™?

joyn is the global consumer facing brand for RCS-e services that will be used by toperators

www.joynus.comBenefits:-Benefits:

– Service Discovery displays the services available to be used for any particular contact in the user's address book.

– joyn is interoperable between mobile operators, which enables the end user to communicate and be connected with anyone.

– joyn is either available natively in the mobile phone or can be downloaded as joyn is either available natively in the mobile phone or can be downloaded as an app - without the need for passwords or creating a special account (cross-platform technology).

‘It’s just there, it just works’

‘‘joynjoyn’ Licencing and Accreditation Framework’ Licencing and Accreditation Framework

The ‘joyn’ Logo License Agreement is a promise to only use the ‘joyn’ logo when the d i / l tf h f ll l t d th i i i t f RCS device/platform has successfully completed the minimum requirements for RCS IOT

– these requirements are provided in the License Agreement and are applicable q p g ppfor certain device categories (devices, PCs, tablets).

GSMA are undertaking this to enable standardised RCS-e compliant services to be brought to market across the whole industry be brought to market across the whole industry. Client Accreditation and AssuranceNetwork Accreditation and Assurancehttp://www.gsma.com/rcs/interop-and-testing/This approach will mean a high level of assurance of delivering the ‘It’s just there, it j t k ’ hil h i h t t f th ‘j ’ iti t tjust works’ philosophy inherent as part of the ‘joyn’ proposition to customers.List of Accredited Operators and Client Manufacturers: http://www.gsma.com/rcs/iot-accreditation/

GSMA RCS Network APIsGSMA RCS Network APIs

API approach in order to expand capabilities, enable new business models, provide h i f diff ti t d i d i ifi tl d ti t k t f mechanisms for differentiated services, and significantly reduce time-to-market for

innovation – Available to any developer community independent of the development platform y p y p p p– Expose network assets independent of the signaling protocols, network

platforms, or access technology R d d l t t d ti t k t f li ti d i – Reduces development cost and time-to-market for new applications and services

– Simplifies and fuels wider deployment of existing applications and services Supported APIs:-Supported APIs:

– Network Address Book, Presence, Messaging (SMS/MMS), Chat, File Transfer, Call, Video/Image Share, OAuth Framework, Capability Discovery

GSMA RCS Network API ArchitectureGSMA RCS Network API Architecture

RCS gaining momentum worldwideg g

Reachable market footprint already exceeds one billion customers!

Additional GSMA WorkAdditional GSMA Work

IR.34 - Inter-Service Provider IP Backbone GuidelinesIR 58 IMS P fil f V i HSPAIR.58 - IMS Profile for Voice over HSPAIR.64 - IMS Service Centralization and Continuity GuidelinesIR.65 - IMS Roaming and Interworking GuidelinesIR.67 - DNS/ENUM Guidelines for Service Providers & GRX/IPX ProvidersIR.88 - LTE Roaming GuidelinesIR 90 RCS Interworking GuidelinesIR.90 - RCS Interworking GuidelinesIR.94 - IMS Profile for Conversational Video ServiceIN.25 - Proposed national and international RCS-e Interworking RequirementsAA.60-69 - Template Agreements for Interworking (with Service Schedules for various RCS-e services)Available at:- http://www.gsma.com/newsroom/technical-documents/p g

Find out more about other GSMA Technical Projects:- http://www.gsma.com/technicalprojects/

Potential Ecosystem Evolutiony

LTE Packet Switch+ IMS + QoSon

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PolicyIMS API

Operator Network2G Roaming

+ IMS + QoS

QoS-enabled IP Roaming & IPXC

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p3G Interconnect

Circuit Switch

Interconnect

Wi-Fi

IPX

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UNI NNIWi-Fi Roaming

62

UNI Wi-Fi Roaming

DH1

Slide 12

DH1 Change this title!DHutton; 08/10/2012

How to prove it works How to prove it works -- IOTIOT

MSF/ETSI/GSMA RCS VoLTE Interoperability Event 2012… this is where I hand over to Wayne!

THANK YOU!dh tt @

© GSM Association 2011

dhutton@gsm.org