ITU/CITEL-PCC.I Seminar on Bridging the Standardization Divide. IPTV Standardisation Activities

Transcription

1 ITU/CITEL-PCC.I Seminar on Bridging the Standardization Divide IPTV Standardisation Activities Keith Mainwaring, Technical Leader, Cisco

2 Agenda DVB Digital Video Broadcasting project ETSI TISPAN European s Standards Institute Telecoms & Internet converged Services and Protocols for Advanced Networks ITU-T IPTV Focus Group

3 DVB IPI (IP Infrastructure) ETSI TR Architectural framework for the delivery of DVB services over IP based networks ETSI TS Transport of MPEG2 based DVB services over IP based networks ETSI TS Specification for the use of Video and Audio Coding in DVB services delivered directly over IP protocols (i.e. not involving an MPEG2 transport stream)

4 ETSI TS The information for service discovery and selection services is assembled according to the SD&S (Service Discovery and Selection) protocol, which for multicast (push) services is transported in IP packets according to the DVBSTP (DVB SD&S Transport Protocol) and for unicast (pull) services is transported via HTTP. An SD&S entry point can be implemented using a DNS mechanism. The Real-Time Streaming Protocol (RTSP) is used for control of the delivery of broadcast TV and audio (radio) programs as well as for ondemand delivery. The Audio and Video streams and the Service Information are multiplexed into an MPEG-2 Transport Stream. The resulting MPEG-2 packets are encapsulated in RTP, with DSCP packet markings for quality of service. RTCP is used, for example to send information to receivers about transmission statistics, and IGMP to join and leave multicast streams. The DHCP protocol is used to configure the HNED with an IP address. Real time clock services or accurate network time services are implemented using respectively SNTP or NTP protocol. RTSP profiles for Live Media Broadcast (LMB), Media Broadcast with Trick Modes (MBwTM) and Content on Demand (CoD) are defined.

5 ETSI TISPAN IPTV IMS-based Dedicated IPTV Subsystem

6 TISPAN IMS-based IPTV Architecture Xa SSF SDF Sh Ut Sh IPTV Service Control CoD-SCF BC-SCF N-PVR-SCF IPTV Media Control CoD-MCF BC-MCF N-PVR-MCF UPSF Cx ISC and IPTV Service Xp IPTV Media UE ISC Gm Core IMS y2 IPTV Media Delivery CoD-MDF e2 Gq' BC-MDF Xc Xd NASS e4 RACS Transport Control Transport Transport Processing N-PVR-MDF Media Delivery, Distribution & Storage

7 IMS-based IPTV protocols SIP/SDP protocol reference point Gm reference point ISC reference point y2 HTTP protocol reference point Xa reference point Ut RTSP/SDP protocol reference point Xc IGMP protocol reference point Xc

8 TISPAN Dedicated IPTV Subsystem Architecture UE UE & NGN Apps Intr UE & DRM Intr Tr Ct2 Xc NGN SD&S Customer Facing IPTV s Ss IPTV Control Intr NGN & CF IPTV Apps IPTV Subscriber IPTV Service Control and Delivery Sa Media delivery Control Xp Media Preparation Media DRM Acquisition NGN s IPTV s Media Distribution Ud NGN App UDF IPTV UDF Ug NGN UDAF UPSF Sh Media Content Provider e2 Media delivery Gq Service Layer Charging Consumer Transport Configuration & Authentication NASS e4 RACS Transport Layer Delivery Network Gateway Xd Transport Processing

9 ITU-T IPTV FG WG 1: Architecture and Requirements WG 2: QoS and Performance Aspects WG 3: Service Security and Content Protection WG 4: IPTV Network Control WG 5: End Systems and Interoperability Aspects WG 6: Middleware, and Content Platforms

10 End-User Functional Architecture Content Provider Profile Function Clients Transaction Protocol IPTV s Metadata Content Preparation Content & Metadata Content & Data Sources IPTV Terminal Service Control Content Delivery Content Delivery Control Service Control Media Client Delivery Protocols Content Delivery & Storage Function Content Delivery Control Client IPTV Service Control Function Service Profile Function Home Network Authentication & Configuration Protocol Authentication & IP Allocation Resource Control Network Transport Delivery Network Gateway Function Access Network Edge Core Transport

11 ITU-T IPTV FG Architectures Non-NGN NGN Non-IMS NGN IMS

12 Non-NGN IPTV Architecture

13 NGN Non-IMS IPTV Architecture

14 NGN IMS IPTV Architecture

15 Detailed Architecture Clients Service Discovery & Selection C. Linear TV Client IPTV s Service Discovery & Selection A. Linear TV Provisioning Profile Function Content Provider On-Demand Client Other Clients On-Demand Other s Content DRM Rights Source Metadata Processing MetaData Sources DRM Client DRM Rights & Key management Content Encryption Content Processing Content Aggregation Content Sources Content Preparation IPTV Terminal Service Control IPTV Service Control Function Content Delivery Content Delivery Control

16 ITU-T IPTV FG DOC/en