iptv standard and mobility issues

Mobile IPTV Mobile IPTV 기술기술및및표준화표준화동향동향

Soohong Daniel [email protected]

Mobile Convergence Laboratory, Digital Medial R&D Center, Samsung Electronics.

-- TTA TTA 핵심기술표준핵심기술표준세미나세미나 2007 2007 --

mailto:[email protected]

TTA 표준전문가워크샵 - 2007 2/30

Table of Contents

• Wireless Broadcast/Multicast• Mobile IPTV Characteristics• Mobile IPTV Deployment• Mobile IPTV Standard Aspect• Concluding Remarks


Prologue

Mobile TV IPTV

IP Mobility

Mobile IPTV


Wireless Broadcast/Multicast

• Use Cases• Technical Aspect


Use Cases

• Pure Broadcast/Multicast Services (no interactivity):– Mobile TV– Mobile newspaper – Mobile clip distribution – Mobile games distribution– Mobile software upgrades and distribution

• Interactive Broadcast/Multicast Services:– Interactive mobile TV; scheduled programs (news, soaps, trailers, game show, advertising) with speci

fic back channels (WEB-access, voting, chat) – Personalized news– Betting services– Auction services– Trading services– Multi-party conference call – Massively multiplayer online games; Online Quiz, Online Roll Play), Online Realtime Strategy Game,

Online Tactical Roll Play Shooter, Online Player Community Game– Location based Traffic Guide; Navigation support and Traffic Information Public Transport Guidance

IP Broadcast Network


Technical Aspect (cont’d)


Technical Aspect


Mobile IPTV Characteristics

• IPTV Definition• Mobile IPTV Definition• IPTV View• Mobile IPTV View• Mobile IPTV Technical Obstacles


IPTV Definition

• IPTV definition in ITU-T– IPTV is defined as multimedia services such as television/video/ audio/text/graphics/data

delivered over IP based networks managed to provide the required level of QoS/QoE, security, interactivity and reliability.


Mobile IPTV Definition

• Mobile IPTV definition in our hand– Mobile IPTV is defined as multimedia services such as television/video/

audio/text/graphics/data delivered over IP based wireless networks managed to provide the required level of QoS/QoE, security, interactivity and mobility.


IPTV Views (cont’d)

• HD contents over fixed broadband connection– QOS guaranteed (at least 10 Mbps guaranteed)

• IPTV traffics ONLY go through the exclusive way of QOS path – No best efforts• Not video streaming over public internet viewed on a PC

– Exclusive secure path– Legacy Network (1st Stage)– NGN Network (2nd Stage)

• IMS / Non-IMS


Mobile IPTV Views (cont’d)

• IPTV Plus Mobility Profile– Portability– Hybrid services (indoor and outdoor)

• Personal Stations (IPTV Source Generator)– UCC requirements

• Mobile Scenarios– Service profiles discussed often assume HD quality video and audio, which is practically

impossible for mobile terminals


Mobile IPTV Technical Obstacles

• Reduced Capability Devices– A/V decoders, interactive middleware

• Adaptability– Various types of access networks, form factors, levels of processing power

• Mobility– Mobile terminals are moving so the environment changes dynamically

• Protocols and algorithms– Dealing with network congestion– Dealing with packet loss due to wireless interference

• Ubiquitousness– Different applications and services available from those of the fixed


Mobile IPTV Deployment

• Approaches• Mobile IPTV Extension


IP Networks

Approaches (cont’d)

• Set-Top (or Edge Router) extension taking Mobility Profile into consideration– Extra Wireless interface (internal or external)– Extended functions wrt Mobility Profile

• 1st Stage for Mobile IPTV deployment (In Home / Office)

Sender ReceiverNetworkEquipment

Set-Top Box/Edge Router


IP Networks

Approaches

• Mobile IPTV stations enabling wireless interface– End-To-End Mobility Profile communication

• 2nd Stage for Mobile IPTV deployment (UCC)

Sender ReceiverNetworkEquipment

NetworkEquipment


Mobile IPTV Extension (cont’d)

Non-NGN : Legacy Internet


Mobile IPTV Extension

NGN & Non-IMS

Data Scalability

NGN & IMS

• Mobile IPTV Extension based on ITU-T Architecture• Mobility and Handover over Application/Transport Layer• Further study (2007 - , TTA)


Mobile IPTV Standard Aspect

• ITU-T IPTV FG• OMA BCAST• 3GPP MBMS• DVB CBMS• IETF• TTA• SVC• WiBro


ITU-T IPTV FG

• ITU-T IPTV FG until ’07 / 2Q– Mission statement

• The mission of IPTV Focus Group is to coordinate and promote the development of global IPTV standards taking into account the existing work of the ITU study groups as well as Standards Developing Organizations (SDOs), Fora and Consortia.

– Goal• Definition of IPTV and identification of scenarios, requirements and service• Review and gap analysis of existing standards and ongoing works• Coordination of existing standardization activities• Harmonization of the development of new standards• Encourage interoperability with existing systems where possible


OMA BCAST

Relevant works:DVB (IP Datacast over DVB-H)3GPP (MBMS)3GPP2 (BCMCS)IETF (RMT, MMUSIC)


3GPP MBMS

MBMS Receiver

Content Provider

IP Network

Core Network

UTRAN

GERAN

SGSN GGSN

Gi

MBMS Receiver

BM-SCGmb

MBMS: Multimedia Broadcast/Multicast Service BCMCS: Broadcast/Multicast Service


DVB CBMS

CBMS: Convergence of Broadcast and Mobile Service (DVB-H)


IETF

• IETF Efforts– Link Characteristic Information for indicating the available bandwidth (characteristics of

wireless connection) sent by mobile terminal to sender (IPTV contents provider)

– RMT / MMUSIC Working Group

– 16ng (IP over IEEE 802.16 Networks) Working Group


TTA

• TTA PG219 / WG2193– Technical requirements (’06)

• Service Requirements• Terminal Requirements• Network Requirements• QoS/QoE Requirements• Security Requirements

– Protocol design (’07)

ITU-TFG IPTV

ITU-TSG13/19

TTAWG2193


SVC

• Coding scheme– SVC (Scalable Video Coding)

(H.264, MPEG-4, MPEG-2, …)

HD@60Hz Contents

Coding

CIF@15Hz Contents

Coding

Trans-coding

VeryComplexoperation

SVC


WiBro

• WiBro MBS– The Multicast Broadcast Service (MCBCS) feature refers to network’s ability to

provide flexible and efficient mechanisms of sending common (the same) information content to multiple users using shared radio resources

Unicast MechanismUnicast Mechanism Multicast MechanismMulticast Mechanism

A source sends the samenumber of datagramsas the number of receivers

A source sends a datagram regardless ofthe number of receivers

Unicast MechanismUnicast Mechanism Multicast MechanismMulticast Mechanism

A source sends the samenumber of datagramsas the number of receivers

A source sends a datagram regardless ofthe number of receivers


Concluding Remarks

• Conclusion• Way Forward


Conclusion

• IPTV service over QOS wired networks as of today

• IPTV service over WiBro, Cellular, Hot-Spot in the near future

• TTA (WG2193) is at the fronthead of Mobile IPTV– Protocol design by 2007 in accordance with ITU-T (FG IPTV, SG13, SG19)– Participation: http://www.tta.or.kr/Home2003/committee/CommitToR.jsp– Mailing list: http://eeca16.sogang.ac.kr/mailman/listinfo/wg2193

http://www.tta.or.kr/Home2003/committee/CommitToR.jsp

http://eeca16.sogang.ac.kr/mailman/listinfo/wg2193


Way Forward

ITU-TIPTV FG

ITU-TSG13/19

Others SDOs

TTA WG2193 Phase I (’06) TTA WG2193 Phase II (’07) Mobile IPTV Spec.

RequirementRequirement - Refinement

Protocol

iptv standard and mobility issues

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