1、STD-ETSI TS LO1 224-ENGL 1798 D 3400855 032753b 453 D TS I O I 224 VI .I .I (1998-07) Technical Specification Digital Video Broadcasting (DVB); Home Access Network (HAN) with an active Network Termination (NT) - STD-ETSI TS 101 224-ENGL 1998 D 3400855 0327537 37T W 2 TS 1 O1 224 Vi -1 .i (1998-07) R
2、eference DTWJTC-DVB-84 (bc000icr.PDF) Keywords ATM, broadcasting, digital, video, DVB, TV, EMC ETSI Postai address F-O6921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif en
3、registrde la Cous-Prfecture de Grasse (06) No 780388 Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Internet secretariat Oetsi.fr http:/www.etsi.fr http:/www.etsi.org Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restrict
4、ion extend to reproduction in ail media. O European Telecommunications Standards Institute 1998. O European Broadcasting Union 1998. Ail rights reserved. ETSI STD-ETSI TS 101 224-ENGL 1998 3900855 0327538 22b = 3 TS 1 O1 224 Vl.l.l (199847) Contents Intellectual Property Rights 4 Foreword 4 1 2 3 4
5、5 6 7 8 9 9.1 9.2 10 10.1 10.2 10.3 scope 5 References 5 Abbreviations . 6 Introduction 7 Topology 8 Physical layer . 9 Timing references 9 Operations And Maintenance (OM) flows 9 Infrastructure 10 Cables 10 Higher layer suppe rt . 11 Connec tors 10 MPEG . IP through MPEG 11 Ip 11 History 12 ETSI ST
6、D-ETSI TS LO1 22Li-ENGL 1978 D 3911855 0327537 Lb2 4 TS 1 O1 224 V1 .i .i (1 998-07) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertainllig ta these essential IPRs, if any, is publicly available for ETS
7、I members and non-members , and can be found in SR O00 314: ?Intellectual Propers Rights (IPRs); Essential, orpotentially Essential, IPRs notifed to ETSI in respect ofETSI standards?, which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSI Web server (ht
8、tp:/www.etsi.fr/ipr or http:/www .etsi.org/ipr). 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 SR O00 3 14 (or the updates on the ETSI Web server) which are, or ma
9、y be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by the Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalization ELECtrotechnique (CENELEC) and the European Telecommunication
10、s Standards Institute (ETSI). NOTE: The EBUETSI JTC Broadcast was established in 1990 to co-ordinate the drafting of standards in the specific field of broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body by including in the Memorandum of Understanding also CENELEC,
11、 which is responsible for the standardization of radio and television receivers. The EBU is a professional association of broadcasting organizations whose work includes the co-ordination of its members? activities in the technical, legal, programme-making and programme-exchange domains. The EBU has
12、active members in about 60 countries in the European broadcasting area; its headquarters is in Geneva. European Broadcasting Union CH-1218 GRAND SACONNEX (Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 Digital Video Broadcasting (DVB) Project Founded in September 1993, the DVB Proje
13、ct is a market-led consortium of public and private sector organizations in the television industry. Its aim is to establish the framework for the introduction of MPEG-2 based digital television services. Now comprising over 200 organizations from more than 25 countries around the world, DVB fosters
14、 market-led systems, which meet the real needs, and economic circumstances, of the consumer electronics and the broadcast industry. ETSI STD-ETSI TS LO1 224-ENGL 1998 3400855 0327590 489 5 TS 101 224 Vl.l.1 (199847) 1 Scope The DVB In-Home Digital Network (IHDN) can be subdivided into a Home Access
15、Network (HAN) for the connection to external networks and a Home Local Network (HLN) for interconnections of user equipment to clusters and between rooms. In addition to the DVB access technologies (satellite, cable, terrestrial, SMATV, MMDS) with the interaction channels for interactive broadcast s
16、ervices, the present document defines interfaces and Network Terminations (NT), such as an xDSL modem or an external cable modem. The existing DVB transmission systems form part of the HAN architecture, but access the IRD without any influence from other sections of the HAN. The HAN for use with an
17、active NT is based on an ATM interface operating at 25 Mbit/s or 51 Mbit/s. The EEE 1394 interface with the long reach extension has been selected for the HLN. The broadband access network enables broadband multimedia services, such as video on demand and switched digital broadcast, over twisted pai
18、r lines with an xDSL modem. It may also be used for interaction purposes in combination with any broadcast delivery network. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (i
19、dentified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. A non-specific reference to an ETS shail also be taken to refer to later versions published
20、as an EN with the same number. 111 DVB Interactive Services Commercial Module User and Market Requirements for In-Home Digital Networks - DVB-1SCM-004 (Rev 7). Early Draft TR 101 226: “Digital Video Broadcasting (DVB); In-Home Digital Network (IHDN) guidelines“. In preparation by the DVB Project; to
21、 be based on DVB-TM 2003 DVB- IHDN - 012. Early Draft TS 101 225: “Digital Video Broadcasting (DVB); In-Home Digital Network (IHDN) Home Local Network (HLN)“. In preparation by the DVB Project ATM Forum “Residential Broadband Physical Interfaces Specification“. ATM Forum: “Physical Interface Specifi
22、cation for 25,6 Mbit/s over Twisted Pair Cable“ 121 131 141 151 af-phy -0040 .OOO. 161 171 1T-T Recommendation 1.610: “B-ISDN Operations DVB specification for data broadcasting“. lSO/IEC 13818-1 : “lnformation Technology - Generic Coding of Moving Pictures and Associated Audio Recommendation H.222.0
23、 (systems)“. ETSI 6 TS 1 O1 224 V1.l.l (1 998-07) Li11 IT-T Recommendation J.110 “Basic principles for a worldwide common family of systems for the provision of interactive television services“. 3 Ab b reviatio ns For the purposes of the present document, the following abbreviations apply: ADSL ATM
24、CPE DAVIC DVB DVB-C DVB-MC DVB-MS DVB-S DVB-SMATV DVB-T DVCR DVD EMC HAN “ lEC LEEE IHDN IRD LLC MMDS MVDS MPEG NT OAM PID PHY PC POF POTS PPP RBB RF RFI SDH SMATV SNAP SONET TS m UTP vc XDSL Asynchronous Digital Subscriber Loop Asynchronous Transfer Mode Customer Premises Equipment Digital Audio Vi
25、sual Council Digitai Video Broadcasting DVB cable transmission standard (EN 300 429) DVB Microwave Multipoint Distribution Systems (MMDS) below 10 GHz (EN 300 749) DVB Multipoint Video Distribution Systems (MVDS) at 10 GHz and above (EN 300 748) DVB satellite transmission standard (EN 300 421) DVB s
26、atellite master antenna television delivery standard (EN 300 473) DVB terrestrial transmission standard (EN 300 744) Digital Video Cassette Recorder Digitai Versatile Disk Electromagnetic Compatibility Home Access Network Home Local Network International Electrotechnical Commission Institute of Elec
27、trical and Electronic Engineers In-Home Digital Network Integrated Receiver Decoder Logical Link Control Microwave Multipoint Distribution Systems Multipoint Video Distribution Systems Moving Pictures Experts Group Network Termination Operations And Maintenance Packet IDentifier Physical layer Perso
28、nal Computer Plastic Optical Fibre Plain Old Telephone System Point of Presence Protocol Residential Broadband Radio Frequency Radio Frequency Interference Synchronous Digitai Hierarchy Satellite Master Antenna Television SubNetwork Attachment Point Synchronous Optical Network Transport Stream Telev
29、ision Unscreened Twisted Pair Virtual Container generic Digital Subscriber Loop technology, e.g. ADSL ETSI 7 TS 1 O1 224 Vl .1.1 (1 998-07) 4 Introduction The DVB ln-Home Digital Network (IHDN) can be subdivided into a Home Access Network (HAN) for the connection to external networks and a Home Loca
30、l Network (HLN) for interconnections of user equipment to clusters and between rooms 11 J 121. In addition to the DVB access technologies (satellite, cable, terrestrial, SMATV, MMDS) with the interaction channels for interactive broadcast services, the present document defies interfaces and Network
31、Terminations (NT), such as an xDSL modem or an external cable modem. The existing DVB transmission systems form part of the HAN architecture, but access the IRD without any influence from other sections of the HAN. Different versions of HAN are possible. The HAN for use with an active NT is based on
32、 an ATM interface operating at 25 Mbit/s or 51 Mbit/s. The WE 1394 interface with the long reach extension has been selected for the HLN. ., which enables broadband multimedia services, such as video on demand and switched digitai broadcast, over twisted pair lines with an xDSL modem. It may also be
33、 used for interaction purposes in combination with any broadcast delivery network. The ln-Home Digital Network (IHDN), which is being implemented to meet a set of commercial requirements listed in i is described in reference 121. It consists of two distinct sections, the Home Access Network (HAN) an
34、d the Home Local Network (HLN). The main purpose of the HAN is the connection of Access Network delivered services from a Network Termination (NT) to various items of CPE. The Home Local Network (HLN) 3, based on IEEE 1394, provides interconnection among local clusters of equipment where most of the
35、 traffic will not traverse the Access Network. An example of such a configuration is shown in figure 2. The present document describes and defines the elements of an ATM HAN for use with an active NT. ETSI STD-ETSI TS LO1 22Li-ENGL 1778 3400855 0327543 b93 Other DVB broadcast or interactive systems
36、Telco ATM Network I -1 Active Telco NT L 8 d SetTopBox I- EFE 1394 I n TC 1 O1 224 V1 .i .i (1 998-07) Camcorder u POTS Wiring HAN Long Reach EEE 1394 Em1394 HLN Figure 2: Elements of the IHDN As the purpose of this ATM HAN is primarily to distribute ATM Access Network delivered services to various
37、locations within the home, it shail provide a means of connecting multiple in-home devices to the Access Network as shown above. However, the limiting case would be a single connected device. Depending on the implementation, it may also support intra-home communications Le. device to device communic
38、ation within the home without going via the Access Network, but local regulatory resbictions might prevent such functionality being incorporated into the NT itself. 5 Topology The classical ATM point-to-point, star topology shall be supported. 9 TS 101 224 V1.l.l (1998-07) 6 Physical layer The Physi
39、cal layer (PHY) specified for the DVB HAN is a subset of the Residential Broadband (RBB) PHY defined by the ATM Forum in 141. The ATM Forum specification defines a system that will operate at either 25,6 Mbiih or 51,2 MbiVs; it was derived from the existing ATM 25 specification SJ, but was modified
40、so as to provide: improved RFI egress properties, particularly in the spectral region below 30 MHz which is not covered by existing radiated emissions regulations, but is subject to the legally enforceable requirement not to interfere with existing services; an optional, higher speed (51,2 MbiVs) mo
41、de; physical layer OAM functionality; mandatory support for 8 kHz timing: Category 5 TP and POF are the only supported media types. This ATM Forum ATM 25/51 specification is backward compatible with, and will interoperate with ATM 25 as defined in IS. When the 51,2 MbiVs mode is implemented it shall
42、 be able to autosense the operating speed of the other end of the link and drop back to a lower rate of 25,6 MbiVs if necessary for interoperability. A common transmit level is used at both speeds which supports operation over 50 m of Category 5 UP cable and remains compatible with the current 25.6
43、Mbitfs UTP PHY over such cables. The following options in 141 are mandatory for the DVB HAN: The 51,2 Mbit/s mode shall be supported; 100 a, Category 5 Unscreened Twisted Pair (UTP) copper cable shall be supported. Formal EMC requirements are country specific and so do not form part of the DVB HAN s
44、pecification. However, there is a widely applicable general requirement not to interfere with any existing licensed service. The most difficult services with which to co-exist are amateur and shortwave radio. The ATM Forum PHY specification 141 has been developed so that co-existence with such servi
45、ces can be achieved. 7 Timing references Certain applications, in particular those which involve interworking with narrowband services at some point in the (external) network, may require the delivery of a network referenced (e.g. 8 kHz) clock. The ATM HAN shall provide an 8 kHz clock reference deri
46、ved from a timing reference on the access network connection. This clock reference shall be distributed by means of the timing character markers defined in 4. The HAN is not SONETKDH framed; there is no requirement for the PHY to support loop timing at the terminal equipment. Timing characters will
47、not be looped back at terminal equipment. 8 Operations And Maintenance (OAM) flows The ATM HAN shall support F4 and F5 OAM flows, as defied in 161. Physical layer OAM functions shall be supported, as specified in 141. ETSI STD*ETSI TS 101 224-ENGL 1778 3400855 0327545 4bb 1 10 TS 1 O1 224 V1.l.l (1
48、998-07) Transmit + I Receive + 9 Infrastructure 3 4 5 6 7 8 The existing published wiring standard did not cover the home environment, and so the following subset of the infrastructure reference model developed by the RBB Working Group of the ATM Forum and used in 4 has been adopted. Unused Unused U
49、nused Unused Unused Unused Unused Unused Receive + Transmit + Receive - Transmit - 9.1 Cables 100 R, Category 5 UTP copper cable shall be used. The nominal maximum reach between the NT and an item of CPE is 50 m. This includes the length of any patch cords. 9.2 Connectors The supported connector type is specified in EC 603-7 7 (commonly referred to as RJ45). Figure 3: Example of UTP-RJ45 Jack The contact assignments for the UTP-RJ45 receptacle (jack) shown in figure 3 shali be as listed in table 1. Table 1: Contact Assignments for UTP-RJ4
