1. IPTV mechanism for content delivery using P2P
Haihua Li, CATR,
14th CJK NGN WG Meeting
December 10-12, 2008
Tokyo,Japan

2. 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

3. 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

4. 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

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

6. 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

7. 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

8. 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

9. 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

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

11. Thanks for your attention!