IPTV mechanism for content delivery using P2P Haihua Li, CATR, lihaihua@mail.ritt.com.cn 14th CJK NGN WG Meeting December 10-12, 2008 Tokyo,Japan

Content of presentation Specification in CCSA and deployment instances in China. Relevant technical points Some consideration to Y.iptv-netcontrol-fw, Q2 in ITU-T Li Haihua,CATR Page 2 2018/6/18

CCSA is working on the specification of “Media delivery system of IPTV” P2P Architecture based IPTV Media Delivery System CDN Architecture based IPTV Media Delivery System Use cases and requirements of IPTV media Delivery System Architecture of IPTV Media Delivery System Convergence of P2P with traditional CDN IPTV P2PCDN（Content Delivery Network with Peer to Peer overlay） Li Haihua,CATR Page 3 2018/6/18

China Netcom’s “VISUALNET PROJECT” Service positioning HQ realtime or near realtime video Simplify the value chain Contents producer/provider： Contents produce and operate Netcom Platform：Bundle the distribution platform 、marketing channel and end users Contents producer Contents provider Services provider Netcom Channels USER Li Haihua,CATR 2018/6/18

CMCC:DSN（Distributed Services Network ） Communication(e.g. VoIP/chat/game) Streaming Etc. Li Haihua,CATR 2018/6/18

Using P2P at different layer Using P2P between Media servers: Media server can search and retrieve content from other media server Using P2P between UE: UEs can share media contents as well as other capacities, such as memory and disk storage with each other Using P2P between Media servers Using P2P between UE Li Haihua,CATR 2018/6/18

Segmentation——a significant feature of P2P segmentation --split a program into different segments, then each peer can only store some of those segments Node A Node B UE 1 Node C 2 3 4 5 Node D UE Node A Node B Node C Node D Program0 Program0 1 2 3 4 5 Segment Instance：Using P2P between Media servers Benefits from using P2P 1） Save storage 2) Resource sharing 3) Over load 4) Lower CAPEX and OPEX. Not using carrier-level devices for P2P Li Haihua,CATR 2018/6/18

Influences to Content Delivery network using P2P Network part Distributed storage Content Management Content Distribution IPTV service control … Terminal part Resource and admission control(RACF) Such as: Using network diversity for QoS !!! Each segment might be very small, Segment switching might be very quickly Li Haihua,CATR 2018/6/18

Some consideration about Y. iptv-netcontrol-fw,Q2 ITU-T has tried to introduce P2P into content delivery network Consideration： Make it clear that P2P can be introduced within servers in CDN and within UE, and give the relevant requirements Some modification to Section 9.4”Overlay network” may be required Overlay Service and Network for IPTV Li Haihua,CATR 2018/6/18

Summary CCSA:IPTV P2PCDN Segmentation and influences consideration to Y.iptv-netcontrol-fw Li Haihua,CATR 2018/6/18

Thanks for your attention!