380 likes | 522 Vues
Interworking between HN and IPTV Other SDOs’ Status and A New Standard Item. ISO/IEC JTC1 SC25 WG1 Pyung-Soo Kim, Ph. D. System Software Solution Lab. Dept. of EE, Korea Polytechnic University. Prelude. This presentation is not a new proposal concretely researched.
E N D
Interworking between HN and IPTVOther SDOs’ Status and A New Standard Item ISO/IEC JTC1 SC25 WG1 Pyung-Soo Kim, Ph. D. System Software Solution Lab. Dept. of EE, Korea Polytechnic University
Prelude • This presentation is not a new proposal concretely researched. • Just, an introduction of other SDOs’ status on Interworking between Home Network and IPTV • ITU-T, Open IPTV Forum, DVB Project. • Then, a new standard item to be researched is briefly introduced. • I hope to propose officially a new standard item in next October meeting after researching concretely.
Why IPTV Service in HN? • The HN has become a preferred environment for many end users to receive multimedia services in the home. • Thus, IPTV services are likely to be delivered using home networking technology. • In order to provide IPTV users with good user experience and to bring down the costs, IPTV devices need to interact seamlessly with the HN and with each other on the HN. • For that purpose, a standardized HN architecture and technology supporting IPTV services might be essential.
Standards for IPTV • SDOs for IPTV
Standards for Interworking between HN and IPTV • SDOs for Interworking between HN and IPTV
Overview of ITU-T Standards • Standards for Interworking of HN and IPTV SG16 SG9 SG16 SG13
ITU-T Q.21/16 Q.21/SG16 Multimedia Architecture IPTV Home Network [Q.21/16] H.622.1(2008) Architecture and functional requirements for Home Network supporting IPTV services H.IPTV-RM Architecture and functional requirements for remote management of HN supporting IPTV services H.IPTV-NGN-RM NGN based Home Networks supporting IPTV services capabilities
ITU-T Q.21/16 (H.622.1) • Keywords • The relationship between the HN and IPTV-related entities • HGI(Home Gateway Initiative) based approach • Objective and Scope • HNs and IPTV-related entities are defined, and interfaces between these entities are identified. • Functions needed for the HN to support IPTV services are described. • It further sets criteria to verify compliance of HN devices, e.g., IPTV terminal devices, to the identified rules and requirements.
ITU-T Q.21/16 (H.622.1) • Home network architecture in H.622.1 IPTV Functional Architecture [ITU-T Y.1910] HN Architecture in H.622.1
ITU-T Q.21/16 (H.622.1) • Components • Primary Domain (IP-HN-P) • Deals with IPTV-related IP traffic between the access network and the IPTV terminal device (IPTV TD) including audio and video streams • Secondary Domain (IP-HN-S and PR-HN-S) • IP secondary domain(IP-HN-S) based on IP protocols • Ex) IEC 62481 (DLNA) Application Area • Non-IP secondary domain(PR-HN-S) based on non-IP protocols • Ex) IEEE 1394
ITU-T Q.21/16 (H.622.1) • Components • IPTV terminal device (IPTV TD) • IPTV set-top box • DMS in case DLNA application area • Home network terminal device (HN-TD) • Terminal devices that do not directly interact with the service or network provider may be used by the end-user to use IPTV services on the home network (A traditional TV) • DMP (Display device) in case DLNA application area
ITU-T Q.21/16 (H.622.1) • Components • Delivery Network Gateway (DNG) • A gateway between AN and HN • Home gateway, Residential gateway and so on are used for the same device • Providing crucial functions for services on the HN • Implementing the DNG function (DNGF) that is the set of functions that mediate between the network and service provider domains and the IPTV terminal function (ITF)
ITU-T Q.21/16 (H.622.1) • Components • Interfaces
ITU-T Q.21/16 (H.622.1) • Main Specifications • Quality of Service (QoS) • Security • Interoperability (with DLNA based and UPnP based devices) • Delivery Network Gateway (DNG) • Network Management
ITU-T Q.21/16 (H.622.1) • DNG Specification • HGI based mainly • Home Gateway Technical Requirements: Release 1 • Cooperation between HGI and ITU-T SG16 on IPTV End System Contribution • Specifications • Functional overview • IPI-4/IPI-3 interfaces • Packet processing • Network service support • IGMP functionality
ITU-T Q.21/16 (H.622.1) • Annex : Considerations on ISO/IEC 15045-1 for IPTV services • Packet processing and interfaces of the DNG • The packet processing in the sense of QoS and multicast at the gateway device, which are important aspects for IPTV, is not mentioned in ISO/IEC 15045-1. • A [ISO/IEC 15045-1] compliant device is required to meet requirements of H.622.1. • Security consideration • In addition to the protection of devices and information, designing a [ISO/IEC 15045-1] compliant requires the operational aspects of IPTV services, for example, content protection.
Overview of OIPF • Members
Overview of OIPF • Open IPTV Forum(OIPF) • Shall specify a common and open E2E solution for supplying a variety of IPTV and internet multimedia services to consumer equipment in the home network • Shall consider the establishment of certification and logo programs to ensure the E2E interoperability • Shall have all the key players included, e.g. CE vendors, content providers, network operators, service providers, network equipment vendors and home network equipment vendors • By deploying a home network with devices conforming to the OIPF’s specifications, consumers will also be able to enjoy various IPTV services on other connected devices.
OIPFStandards • E2E Specifications • Architecture and interfaces • Network and terminal functionality • Interactive and personalized services • Technology choices for all major functionalities • A common UNI (User-Network Interface) for the Open Internet and Managed Networks • Certification of equipment including end user devices and service provider offerings
OIPFStandards • E2E Specifications shall support: • A variety of IPTV and Internet multimedia services • Managed networks and the Open Internet • Integration with communication services • Convergence of IPTV and multimedia services across different access technologies • Easy integration of 3rd party content offerings • Various devices in the home network
OIPFStandards • Service Models
OIPFStandards • UNI maps between OITFandAccess Networkin User Domain • OITF (Open IPTV Terminal Function)
OIPFStandards • Gateways • IG (IMS Gateway Functional Entity) • Communication services such as messenger, presence • AG (Application Gateway Functional Entity) • Personalized advertisement, videoconferencing • CSPG (Content and Service Protection Gateway Functional Entity) • Security, DRM, authentication • WG (WAN Gateway Functional Entity) • General Residential Gateway
Broadcast Home Network Security Overview of DVB Broadband Mobile Fixed Telecom WirelessTelecom [출처] MPEG MMT Requirements Workshop, July, 1st 2009
DVB-IPTV Standards • DVB works co-operatively via liaisons (some informal) with all SDOs represented • Standards & BlueBooks (about Home Network) • DVB-IPTV 1.4 : Transport of MPEG 2 TS Based DVB Services over IP Based Networks (and associated XML) • Support for Content Download Services for user (pull download) or service provider (push download) initiated download of content items to the Home Network End Device (HNED) • Regionalization metadata to enable a Home Network End Device to acquire the region in which it is located (CellID assignment) • DVB-HN (Home Network) Reference Model Phase 1 • High-level Technical Requirements for QoS for DVB Services in the Home Network
Service Provider 1 Service Provider N Service Provider 2 Live Broadcast Live Broadcast Live Broadcast CoD CoD CoD SD&S server Service inf. SD&S server Service inf. SD&S server Service inf. BCG BCG BCG DVB-IPTV Standards • Functional model HNED: Home Network End Device DNG: Delivery Network Gateway SD&S: Service Discovery and Selection BCG: Broadband Content Guide CoD: Content on Demand CDS: Content Download Service - - - indicates optional entity Content Providers CDS Focus of DVB-IPTV specification Delivery Network (Access & Core) Home Network SD&S server Service provider inf. IPI-3 IPI-1 IPI-4 DNG NAT HNED Time server DHCP DHCP Firmware Update Remote Management DNS
A New Standard Item @ ISO/IEC JTC1 SC25 WG1
Motivation of New Standard Item The HN has become a preferred environment for many users to receive multimedia services, such as IPTV, in the home. Today or in near future, Telco based or Cable based primary IPTV service providers will put a residential gateway (RG) in the HN to provide various consumer-facing services. Using the RG, 3rd party or retail IPTV service providers as well as primary IPTV service providers can implement more advanced and innovative customer service features. A newstandard item on HES based RG might be required for supporting IPTV services in HN.
New Standard Item Local IPTV Service Platform (LISP) on Residential Gateway (Tentative title) can play a role of a conceptual platform to provide programming interfaces and functionalities to enable 3rd party or retail IPTV service providers to deliver home network related local IPTV applications and services to end users in the home network. can communicate and interwork with primary service delivery platforms to create more value for (Telco based or Cable based originating) primary IPTV service provider as well as end users in the home network. can be a “patch on” solution of the residential gateway for HES(ISO/IEC 15045-1), that is, not a “built in” solution.
New Standard Item What can be home network based local IPTV applications and services through LISP on RG? Home Control & Automation Services Home Media & Information Services Healthcare Services Internet Telephony Public Interest Services Portal Services Targeted Content Distribution
New Standard Item • Service Scenario Home Network End Users in Home (Telco based or Cable based) Primary IPTV Service LISP on RG Managed or Unmanaged Network HN related local applications and services for IPTV 3rd Party or Retail Service Provider
What to do for a New Standard Item? To define functional requirements for the LISP on RG in the home network environment Architecture, Security(Authentication), 3rd Party Service Provider Management, User Information Management, Content Management, Access Control, Accounting, etc. To provide interfaces and functionalities to enable 3rd party or retail IPTV service providers to offer home network based local IPTV applications and services though the LISP on RG.
Conclusions Today’s presentation has not been a new proposal concretely researched. Just, an introduction of other SDOs’ status on Interworking between IPTV and Home Network ITU-T, Open IPTV Forum, DVB Project. A new standard item to be researched has been briefly introduced.
Conclusions The new standard item should be a “patch on” solution of the residential gateway for HES(ISO/IEC 15045-1), that is, not a “built in” solution in order to preserve interoperability of the original ISO/IEC 15045-1 specifications. I hope to propose officially a new standard item in next October meeting after researching concretely.
Kim, Pyung-Soo Ph.D Professor System Software Solution Lab. Dept. of Electronics Engineering Korea Polytechnic University Email : pskim@kpu.ac.kr http://blog.naver.com/poongdou Tel : 031-8041-0489 대단히 감사합니다 Thank you so much ありがとうございます 非常感謝你 Danke schön Duizendmaal dank