1、 International Telecommunication Union ITU-T Y.1903TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (01/2014) SERIES Y: GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS Internet protocol aspects IPTV over NGN Functional requirements of mobile IPTV Recommendati
2、on ITU-T Y.1903 ITU-T Y-SERIES RECOMMENDATIONS GLOBAL INFORMATION INFRASTRUCTURE, INTERNET PROTOCOL ASPECTS AND NEXT-GENERATION NETWORKS GLOBAL INFORMATION INFRASTRUCTURE General Y.100Y.199 Services, applications and middleware Y.200Y.299 Network aspects Y.300Y.399 Interfaces and protocols Y.400Y.49
3、9 Numbering, addressing and naming Y.500Y.599 Operation, administration and maintenance Y.600Y.699 Security Y.700Y.799 Performances Y.800Y.899 INTERNET PROTOCOL ASPECTS General Y.1000Y.1099 Services and applications Y.1100Y.1199 Architecture, access, network capabilities and resource management Y.12
4、00Y.1299 Transport Y.1300Y.1399 Interworking Y.1400Y.1499 Quality of service and network performance Y.1500Y.1599 Signalling Y.1600Y.1699 Operation, administration and maintenance Y.1700Y.1799 Charging Y.1800Y.1899 IPTV over NGN Y.1900Y.1999 NEXT GENERATION NETWORKS Frameworks and functional archite
5、cture models Y.2000Y.2099 Quality of Service and performance Y.2100Y.2199 Service aspects: Service capabilities and service architecture Y.2200Y.2249 Service aspects: Interoperability of services and networks in NGN Y.2250Y.2299 Enhancements to NGN Y.2300Y.2399 Network management Y.2400Y.2499 Networ
6、k control architectures and protocols Y.2500Y.2599 Packet-based Networks Y.2600Y.2699 Security Y.2700Y.2799 Generalized mobility Y.2800Y.2899 Carrier grade open environment Y.2900Y.2999 FUTURE NETWORKS Y.3000Y.3499 CLOUD COMPUTING Y.3500Y.3999 For further details, please refer to the list of ITU-T R
7、ecommendations. Rec. ITU-T Y.1903 (01/2014) i Recommendation ITU-T Y.1903 Functional requirements of mobile IPTV Summary Recommendation ITU-T Y.1903 describes detailed functional requirements of mobile IPTV, which is an application of IPTV (Recommendation ITU-T Y.1901). It applies to where the IPTV
8、terminal device is connected to the IPTV service provider via an IPTV-enabled mobile network to provide the IPTV services irrespective of changes of the location or technical environment. This Recommendation focuses on the requirements for networking aspects of an IPTV terminal device to the IPTV se
9、rvice provider. This Recommendation does not address the common functional requirements of an IPTV service, which are covered by Recommendation ITU-T Y.1901, but provides the requirements specific to mobile IPTV services only. Thus, these functional requirements are used to develop the detailed spec
10、ifications of the IPTV functional components which are defined in Recommendation ITU-T Y.1910 for support of mobile IPTV. History Edition Recommendation Approval Study Group Unique ID*1.0 ITU-T Y.1903 2014-01-13 13 11.1002/1000/12070Keywords Broadcast, functional requirements, IPTV, mobile IPTV, mul
11、ticast. _ *To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T Y.1903 (01/2014) FOREWORD The International Telecommunication Union
12、(ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and
13、issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these
14、 topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expres
15、sion “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicabil
16、ity) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Re
17、commendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability
18、 of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected by patents, which may be required to implement this Re
19、commendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2014 All rights reserved. No part of this publication may be reproduced, by any means whatsoev
20、er, without the prior written permission of ITU. Rec. ITU-T Y.1903 (01/2014) iii Table of Contents Page 1 Scope 1 2 References. 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 3 5 Conventions 4 6 Overview 4 6.1 Architectural a
21、spects of mobile IPTV 4 6.2 Technical issues of mobile IPTV . 7 7 Functional requirements of mobile IPTV . 8 7.1 General requirements of mobile IPTV . 8 7.2 Functional requirements of service aspects 8 7.3 Functional requirements of networking aspects . 9 7.4 Functional requirements of QoS and QoE a
22、spects . 12 7.5 Functional requirements of mobile IPTV terminal device aspects 12 8 Security considerations . 13 Bibliography. 14 Rec. ITU-T Y.1903 (01/2014) 1 Recommendation ITU-T Y.1903 Functional requirements of mobile IPTV 1 Scope This Recommendation describes detailed functional requirements of
23、 mobile IPTV, which is an application of IPTV ITU-T Y.1901. It applies to where the IPTV terminal device is connected to the IPTV service provider via an IPTV-enabled mobile network to provide the IPTV services irrespective of changes of the location or technical environment. This Recommendation foc
24、uses on the requirements for networking aspects between an IPTV terminal device and an IPTV service provider. This Recommendation does not address the common functional requirements of IPTV service, which are covered by ITU-T Y.1901 but provides the requirements specific to mobile IPTV services only
25、. Thus, these functional requirements are used to develop the detailed specifications of the IPTV functional components which are defined in ITU-T Y.1910 for support of mobile IPTV. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in t
26、his text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent ed
27、ition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T X.1191 Recommendation
28、ITU-T X.1191 (2009), Functional requirements and architecture for IPTV security aspects. ITU-T X.1196 Recommendation ITU-T X.1196 (2012), Framework for the downloadable service and content protection system in the mobile Internet Protocol television environment. ITU-T Y.1901 Recommendation ITU-T Y.1
29、901 (2008), Requirements for the support of IPTV services. ITU-T Y.1910 Recommendation ITU-T Y.1910 (2008), IPTV functional architecture. ITU-T Y.2201 Recommendation ITU-T Y.2201 (2009), Requirements and capabilities for ITU-T NGN. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses t
30、he following terms defined elsewhere: 3.1.1 home network b-ITU-T Q.1706: The network to which a mobile user is normally connected, or the service provider with which the mobile user is associated, and where the users subscription information is managed. 2 Rec. ITU-T Y.1903 (01/2014) 3.1.2 Internet P
31、rotocol Television (IPTV) ITU-T Y.1901: Multimedia services such as television/video/audio/text/graphics/data delivered over IP-based networks managed to support the required level of QoS/QoE, security, interactivity and reliability. 3.1.3 IPTV terminal function (ITF) ITU-T Y.1901: The end-user func
32、tion(s) associated with a) receiving and responding to network control channel messages regarding session set-up, maintenance, and tear-down, and b) receiving the content of an IP transport from the network and rendering. 3.1.4 IPTV terminal device ITU-T Y.1901: A terminal device which has ITF funct
33、ionality, e.g., a STB. 3.1.5 mobile network b-ITU-T Y.2091, clause 9: A network that provides wireless access to its services and supports mobility. 3.1.6 multicast b-ITU-T G.9959: A type of communication when a node sends the same frame simultaneously to one or more other nodes in the network. 3.1.
34、7 nomadism b-ITU-T Q.1761: Ability of the user to change his network access point after moving; when changing the network access point, the users service session is completely stopped and then started again, i.e., there is no handover possible. It is assumed that the normal usage pattern is that use
35、rs shutdown their service session before moving to another access point or changing terminal. This is the mobility alluded to in the case of fixed mobile convergence. 3.1.8 personal mobility b-ITU-T Q.1761: Ability of a user to access telecommunication services at any terminal on the basis of a pers
36、onal identifier, and the capability of the network to provide those services according to the users service profile. Note that personal mobility involves the network capability to locate the terminal associated with the user for the purposes of addressing, routing and charging of the users calls. 3.
37、1.9 service ITU-T Y.1901: A set of functionalities enabled by a provider for end-users. NOTE Example provisioned functionalities include IP connectivity with managed quality of service, video-on-demand. 3.1.10 service mobility b-ITU-T H.510: The ability of a user to use the particular (subscribed) s
38、ervice irrespective of the location of the user and the terminal that is used for that purpose. 3.1.11 terminal device (TD) ITU-T Y.1901: An end-user device which typically presents and/or processes the content, such as a personal computer, a computer peripheral, a mobile device, a TV set, a monitor
39、, a VoIP terminal or an audiovisual media player. 3.1.12 terminal mobility b-ITU-T Q.1761: Ability of a terminal to access telecommunication services from different locations and while in motion, and the capability of the network to identify and locate that terminal. 3.1.13 visited network b-ITU-T Q
40、.1706: The network outside a home network that provides service to a mobile user. This term is more business significant than geographically significant. 3.1.14 wireless network characteristics ITU-T Y.1901: The characteristics of a wireless network expressed in terms of the current available bandwi
41、dth, packet loss and possibly other wireless network information parameters for a specific wireless link type, e.g., WLAN, cellular, WPAN or WMAN. Rec. ITU-T Y.1903 (01/2014) 3 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 broadcast (based on b-ITU-T
42、 G.9959): A type of communication where a node sends the same frame simultaneously to all other network nodes within a direct range. 3.2.2 broadcast service: A service using broadcast technology to deliver information simultaneously from a single sender to every receiver on the network. 3.2.3 broadc
43、ast service region: A service region providing broadcast service(s) to mobile IPTV TDs. 3.2.4 mobile IPTV: An application of IPTV as specified in ITU-T Y.1901. It applies to where the IPTV terminal device is connected to the IPTV service provider via an IPTV-enabled mobile network. It must be able t
44、o communicate and access services irrespective of changes of the location or technical environment. NOTE There are multiple possible levels of mobility, from nomadism, where IPTV service is resumed only after the move is complete, to full mobility, where IPTV service is continuous throughout the mov
45、ement. 3.2.5 mobile IPTV TD: An IPTV terminal device supporting mobile IPTV. 3.2.6 mobility (defined as generalized mobility in b-ITU-T Y.2001): The ability for the user or other mobile entities to communicate and access services irrespective of changes of the location or technical environment. The
46、degree of service availability may depend on several factors including the access network capabilities, service level agreements between the users home network and the visited network (if applicable), etc. Mobility includes the ability of telecommunication with or without service continuity. 3.2.7 m
47、ulticast service: A service using multicast technology to deliver information simultaneously from a single sender to multiple receivers belonging to a specific service group. 3.2.8 multicast service region: A service region providing multicast service(s) to mobile IPTV TDs. 3.2.9 radio resources: Av
48、ailable bandwidth in the mobile access network to provide services to mobile IPTV TDs. 3.2.10 service region: A logical area, consisting of more than one base station (BS) or access point (AP) of the mobile access network, used to provide in an efficient way the same services to all mobile IPTV TDs
49、connected to that service region. NOTE As an example, in a 3G mobile access network, a service region consists of several neighbouring cells. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: AAA Authentication, Authorization, Accounting AP Access Point BS Base Station IPTV Internet Protocol Television ITF IPTV Terminal Function MBMS Multimedia Broadcast and Multicast Service 4 Rec. ITU-T Y.1903 (01/2014) MBS Multicas
