p1 IP Over DVB System Requirements Issues for SI-DAT to Consider Narisa N. Y. Chu Georges Martinez David Garrec 23 July, 2001

p2 IP Over DVB Delivery Program Content Provider Satellite Operator Cable Operator Terrestrial Broadcast Operator Insert IP stream related to Program Insert IP stream un-related to Program or IP stream related to Local Program Insert IP stream related to Program

p3 IP Over DVB Requirements (1) Video related IP vs. Generic IP  IP data related to program content  Program Content Provider generated IP stream  IP Stream with Digital Program Insertion by Operators IP stream is conveniently encapsulated with the video and audio components  IP data un-related to program content  Operator becomes ISP : DVB-ISP IP stream can carry in conjunction with different video and audio streams, or can be in stand-alone MPEG streams IP services localized to the deployed networks

p4 IP Over DVB Requirements (2)  Characteristics of Satellite, Cable, Terrestrial Delivery Networks  Coverage – mix of DVB and IP service load  Penetration – Delivery of IP service via the most predominant network  Architecture – Consider all network elements including HE, Remux, Server, and STB  Services - related to the delivery network  Network Requirements  Static or dynamic network configuration management  Remux – signalling, bandwidth management, video and IP traffic optimization  Mapping of multiple IP / MAC addresses  Refreshing rate – performance requirement for IP related information reliability

p5 IP Over DVB Requirements (3)  Terminal Requirements  Level of required Interactivity  Assumed network knowledge Learns the IP platform (IP server profiles, location) configurations Maintains preset NIT information Identifies mandatory vs. optional information Accesses to IP addresses quickly and efficiently Supports many Multicast addresses  Cost effectiveness  Content  Native DVB Video Audio Private Data  Native IP Internet Content: web browser, , news, announcements, etc. Streaming Video

p6 IP Over DVB Delivery Issues Summary Program Content Provider Satellite Operator Cable Operator Terrestrial Broadcast Operator Insert IP stream related to Program Insert IP stream un-related to Program or IP stream related to Local Program Insert IP stream related to Program (Typically uses Private Data Component in PMT to signal IP data) -May use IMT to signal IP data -Concerns about NIT integrity -Uses PMT -Uses MAC Address List Descriptor -Maintains MPEG integrity (Uses PMT and MAC List Descriptor?)

p7 Guiding System Questions  Video vs. Data Delivery Service  Balance of Video versus IP Traffic  Optimization  Priority  Subscriber Acceptance  MPEG vs. IP Cross-pollination  Latency  Interactivity  Compression vs. Packetization  Multicast, Simulcast, Point-to-point  Terminal Complexity Impact  Network Complexity Impact