1、 ETSI TR 102 199 V1.1.1 (2003-10)Technical Report Services and Protocols for Advanced Networks (SPAN);Preliminary analysis of Broadband multimedia servicesETSI ETSI TR 102 199 V1.1.1 (2003-10) 2 Reference DTR/SPAN-130320 Keywords broadband, multimedia, service ETSI 650 Route des Lucioles F-06921 Sop
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6、tions Standards Institute 2003. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registe
7、red for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TR 102 199 V1.1.1 (2003-10) 3 Contents Intellectual Property Rights6 Foreword.6 Introduction 6 1 Scope 8 2 References 8 3 Abbreviations .14 4 Description of broadband multimedia services 17 4.1 Definition of broadb
8、and multimedia services.17 4.1.1 Definition of broadband17 4.1.2 Multimedia service .17 4.1.3 Multimedia application.18 4.1.4 Broadband multimedia service .18 4.2 Classification of broadband multimedia services and applications 18 4.2.1 Criteria for classification 18 4.2.2 Multimedia services refere
9、nce model .19 4.2.2.1 Communication tasks20 4.2.2.2 Media components 21 4.2.2.3 Control and processing functions22 4.2.2.4 Network aspects 23 4.2.3 Identification of generic service capabilities.23 5 Technical requirements for the support and deployment of broadband multimedia services 26 5.1 Archit
10、ecture26 5.2 Accessibility.27 5.2.1 Broadband access technologies with respect to their use for multimedia services .27 5.2.1.1 Fixed access 27 5.2.1.1.1 Analog modems.27 5.2.1.1.2 xDSL .27 5.2.1.1.3 Ethernet .29 5.2.1.1.4 CATV (Cable Television) .29 5.2.1.1.5 PLT (PowerLine Telecommunications) 30 5
11、.2.1.1.6 FTTB (Fibre-to-the building) 30 5.2.1.2 Wireless access .30 5.2.1.2.1 WLAN (Wireless Local Area Network)30 5.2.1.2.2 Radio in the Local Loop 31 5.2.1.2.3 Bluetooth .31 5.2.1.2.4 DECT 32 5.2.1.3 Cellular systems 33 5.2.1.3.1 GPRS (General Packet Radio Service)33 5.2.1.3.2 EDGE (Enhanced Data
12、 for GSM Evolution).33 5.2.1.3.3 UMTS (Universal Mobile Telecommunication Services) .33 5.2.1.4 Terrestrial systems 34 5.2.1.5 Satellite systems35 5.2.1.5.1 Low Earth Orbit (LEO) satellites 35 5.2.1.5.2 High Altitude Platform Stations (HAPS) 35 5.2.1.6 Broadcast systems .36 5.2.1.7 Conclusions.36 5.
13、3 Transport layer .37 5.4 Signalling and protocols (Control layer) 38 5.4.1 Functional elements 38 5.4.1.1 Media Gateway .38 5.4.1.2 Signalling Gateway .38 5.4.1.3 Call/Session Server (Media Gateway Controller) .38 5.4.1.4 Physical implementation .39 ETSI ETSI TR 102 199 V1.1.1 (2003-10) 4 5.4.2 Can
14、didate protocols 39 5.4.2.1 Call control protocols39 5.4.2.1.1 H.323.39 5.4.2.1.2 SIP (Session Initiation Protocol) .42 5.4.2.2 Media Gateway control protocols .45 5.4.2.2.1 MGCP (Media Gateway Control Protocol) .45 5.4.2.2.2 MEGACO/H.248.45 5.4.2.3 Signalling protocols between Call/Session Servers
15、46 5.4.2.3.1 BICC (Bearer Independent Call Control) 46 5.4.2.3.2 H.323 between Call/Session Servers .46 5.4.2.3.3 SIP-T .47 5.4.2.3.4 SIGTRAN47 5.5 Service layer.48 5.5.1 OSA/Parlay.48 5.5.1.1 Standardization of API48 5.5.1.2 OSA/Parlay architecture49 5.5.2 Web services.50 5.5.2.1 Protocols for “Web
16、 services“ 50 5.5.2.1.1 SOAP (Simple Object Access Protocol)50 5.5.2.1.2 WSDL (Web Services Description Language)51 5.5.2.1.3 UDDI (Universal Description, Discovery and Integration).51 5.5.3 Comparison of the two models .52 5.5.4 Scripting languages.52 5.5.5 SIP servlets .52 5.6 Issues affecting all
17、 layers .52 5.6.1 Addressing, numbering and naming .52 5.6.1.1 SCN (Switched Communication Networks) .52 5.6.1.2 IP-based networks .53 5.6.1.3 SCN-IP networks 53 5.6.2 Media coding 55 5.6.2.1 Voice coding .55 5.6.2.1.1 Voice coding techniques in the context of the telephone network.55 5.6.2.1.2 Voic
18、e coding techniques in the context of an IP network .55 5.6.2.1.3 Wideband speech coding techniques .56 5.6.2.1.4 Still-image coding .58 5.6.2.1.5 Moving image coding60 5.6.2.1.6 ITU-R activities in broadcasting63 5.6.3 QoS and performance .64 5.6.3.1 Definitions and framework .64 5.6.3.2 End-to-end
19、 QoS for multimedia services and applications .65 5.6.3.3 End-user multimedia QoS categories65 5.6.3.4 QoS activities in standardization bodies .67 5.6.3.4.1 ETSI EP TIPHON .67 5.6.3.4.2 ITU-T 68 5.6.3.4.3 3GPP IP Multimedia70 5.6.3.4.4 ETSI IP Cablecom.71 5.6.4 Security.71 5.6.4.1 Security aspects.
20、71 5.6.4.2 Security in PSTN/ISDN 72 5.6.4.3 Security in IP networks .72 5.6.4.4 Security for multimedia.73 5.6.4.5 Activities on security issues in standardization bodies .73 5.6.4.5.1 ITU-T 73 5.6.4.5.2 ETSI 74 5.6.4.5.3 IETF 75 5.6.4.5.4 ISO 77 5.6.5 Network management .80 5.6.5.1 ISO network mana
21、gement model80 5.6.5.2 Network Management protocols .81 5.6.6 Interoperability of systems and terminals for broadband multimedia services provided over different network platforms.82 5.6.7 Multimedia mobility .84 ETSI ETSI TR 102 199 V1.1.1 (2003-10) 5 5.6.7.1 Nomadism, mobile communication and ad-h
22、oc networking.84 5.6.7.2 GMM (Global Multimedia Mobility)84 5.6.7.3 ETSI EP TIPHON mobility service 85 5.6.7.4 H.323 mobility 86 5.6.7.5 3GPP .86 5.6.7.6 IETF 87 6 Current situation in the standardization bodies 87 6.1 ETSI (European Telecommunications Standards Institute)87 6.1.1 Key ETSI TCs and P
23、rojects 87 6.1.2 Related ETSI TCs and Projects.89 6.2 ITU-T .90 6.2.1 Key ITU-T SGs and ITU-T Special Projects90 6.2.2 Related ITU-T SGs and ITU-T Special Projects.92 6.3 ISO (International Organization for Standardization) 93 6.4 ANSI (American National Standards Institute)93 6.5 IETF .93 6.5.1 Key
24、 IETF Technical Areas and Working Groups.93 6.5.2 Related IETF Technical Areas and Working Groups .94 6.6 Other bodies .94 6.6.1 ECMA (Europe-based Association for Standardizing Information and Communication Systems) .94 6.6.2 DSL Forum .94 6.6.3 DVB (Digital Video Broadcasting).95 6.6.4 IMTC (Inter
25、national Multimedia Telecommunications Consortium).95 6.6.5 IPCC (International Packet Communications Consortium) 95 6.6.6 JAIN96 6.6.7 MPLS and Frame Relay Alliance .96 6.6.8 MSF (Multiservice Switching Forum)97 6.6.9 PacketCable 97 6.6.10 Parlay Group.97 6.6.11 TIA (Telecommunications Industry Ass
26、ociation).97 6.6.12 W3C (World Wide Web Consortium) 97 6.6.13 3GPP (3rd Generation Partnership Project)98 6.6.14 3GPP2 (Third Generation Partnership Project 2)98 7 Identification of the standards areas concerned and the gaps.98 7.1 Multimedia services .98 7.2 Accessibility.99 7.3 Control layer.99 7.
27、4 Service layer.99 7.5 Issues affecting all layers .100 7.5.1 Addressing, numbering and naming .100 7.5.2 Media coding 100 7.5.3 QoS .100 7.5.4 Security.101 7.5.5 Network management .101 7.5.6 Interoperability of systems and terminals for broadband multimedia services provided over different network
28、 platforms.102 7.5.7 Mobility 102 Annex A: Bibliography103 History 105 ETSI ETSI TR 102 199 V1.1.1 (2003-10) 6 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is p
29、ublicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the E
30、TSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which ar
31、e, or may be, or may become, essential to the present document. Foreword This Technical Report (TR) has been produced by ETSI Technical Committee Services and Protocols for Advanced Networks (SPAN). Introduction This work has been carried out by STF 234 under the control of the European Commission.
32、The objective of the presented Technical Report is to evaluate the requirements for standardization, identify existing standards and to identify the standardization gaps with respect to the technology for Broadband Multimedia Services. The convergence of telecommunications, radio communications the
33、information technology and home electronics, and also the convergence of broadcasting and interactive applications, which is coupled with the variety of networks, including the new ones like IP based networks and mobile networks, brings the roll out of new broadband multimedia services. With the eme
34、rgence of high-speed networks, the European society will request real-time multimedia communications as an extension of existing one-media systems. This apply for an all range of applications and services in key areas of the eEurope 2005 initiative, such as e-government, e-learning, e-health and e-b
35、usiness. Diversity of emerging new broadband multimedia services require to speed up the standardization process in the whole area of multimedia-related and broadband technologies in such a way the standards fully respond to user requirements in terms of easy to use, accessibility, mobility, securit
36、y, quality of service, end-to-end interoperability, etc. Broadband multimedia applications and services need to be independent of the networks they operate across. The impetus for this has been the growth in the use of the Internet with its concept of “available anywhere at anytime“. An open network
37、 architecture has also to ensure that new broadband multimedia applications can be readily configured to meet user needs using available network resources in a network-independent way. In other words, the architecture for the support of broadband multimedia services has to ensure that users can get
38、the information content they want, in any media, anytime, anywhere, over any facilities. This context has generated a need for a new networks model called NGN (Next Generation Networks). Considering the facts mentioned above, the following approach has been taken for the present document: Clause 4 i
39、ntroduces broadband multimedia services and applications with respect to the definition, classification and identification of possible services. It also provides the multimedia services reference model. Clause 5 identifies technical requirements for the support and deployment of broadband multimedia
40、 services. As the basis for doing this, the NGN model with its layering architecture has been chosen. The technical requirements are thus identified with respect to the NGN access, transport, control and service layer. However, there are also technical issues that are affecting all NGN layers. They
41、are specified in clause 5.6 and include addressing, naming and numbering, media coding, quality of service, security, network management, interoperability and multimedia mobility. ETSI ETSI TR 102 199 V1.1.1 (2003-10) 7 In clause 6, an overview of running activities within different standardization
42、bodies related to broadband multimedia services and technologies and to NGN is given. Clause 7 identifies standardization gaps with respect to the technology for broadband multimedia services and NGN. The standardization gaps are classified with respect to the structure of the present document as me
43、ntioned above. ETSI ETSI TR 102 199 V1.1.1 (2003-10) 8 1 Scope The present document analyses technical requirements for the support and deployment of Broadband Multimedia Services in Europe. It evaluates the requirements for standardization, identifies existing standards and standardization gaps wit
44、h respect to the technology for Broadband Multimedia Services. 2 References For the purposes of this Technical Report (TR), the following references apply: 1 ITU-T Recommendation F.700 (2000): “Framework Recommendation for multimedia services“. 2 ITU-T Recommendation Y.100 (1998): “General overview
45、of the Global Information Infrastructure standards development“. 3 ITU-T Recommendation Q.702 (1988): “Signalling data link“. 4 ITU-T Recommendation Q.703 (1996): “Signalling link“. 5 ETSI EN 300 421 (1997): “Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for 11/1
46、2 GHz satellite services“. 6 ITU-T Recommendation J.112 (1998): “Transmission systems for interactive cable television services“. 7 ITU-T Recommendation J.122 (2002): “Second generation transmission systems for interactive cable television services - IP cable modems“. 8 ETSI ETS 300 800 (1998): “Dig
47、ital Video Broadcasting (DVB); Interaction channel for Cable TV distribution systems (CATV)“. 9 ETSI EN 301 790 (2003): “Digital Video Broadcasting (DVB); Interaction channel for satellite distribution systems“. 10 IETF RFC 3031 (2001): “Multiprotocol Label Switching Architecture“. 11 IETF RFC 3261
48、(2002): “SIP: Session Initiation Protocol“. 12 ITU-T Recommendation Q.1901 (2000): “Bearer independent call control protocol“. 13 ETSI EN 301 848-1 (2001): “Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); Bearer Independent Call Control (BICC); Signalling procedures in an A
49、TM/IP/ backbone network; Capability Set 1 (CS1); Part 1: Protocol specification ITU-T Recommendations Q.1901 and Q.765.5, modified“. 14 IETF RFC 3372 (2002): “Session Initiation Protocol for Telephones (SIP-T): Context and Architectures“. 15 IETF RFC 2960 (2000): “Stream Control Transmission Protocol“. 16 IETF RFC 3309 (2002): “Stream Control Transmission Protocol (SCTP) Checksum Change“. 17 ETSI TS 102 144 (2003): “Services and Protocols for Advanced Networks (SPAN); MTP/SCCP/SSCOP and SIGTRAN (Transport of SS7 over IP); Stream Control Transm
