1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T J.196.1 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2016) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS Cable modems and home networking Functional requirement
2、s for second generation HiNoC Recommendation ITU-T J.196.1 Rec. ITU-T J.196.1 (03/2016) i Recommendation ITU-T J.196.1 Functional requirements for second generation HiNoC Summary Recommendation ITU-T J.196.1 specifies requirements for second generation high performance network over coax (HiNoC) that
3、 provides 1 Gbit/s data transmission over coaxial networks in the cable industry. Recommendation ITU-T J.196.1 contains descriptions for functional requirements of the general system, physical (PHY) layer and media access control (MAC) layer function over coaxial networks connected with fibre to the
4、 building (FTTB). History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T J.196.1 2016-03-15 9 11.1002/1000/12767 * 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
5、:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T J.196.1 (03/2016) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization S
6、ector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets ev
7、ery four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these 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 purvi
8、ew, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is volun
9、tary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) 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 th
10、e negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve
11、the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability 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 Recommen
12、dation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at ht
13、tp:/www.itu.int/ITU-T/ipr/. ITU 2016 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T J.196.1 (03/2016) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 1 3.1 Terms defined elsewh
14、ere 1 3.2 Terms defined in this Recommendation . 1 4 Abbreviations and acronyms 1 5 Conventions 2 6 Architecture 2 7 Requirement 3 7.1 Functional requirement . 3 7.2 Requirements of PHY layer 3 7.3 Requirements of MAC layer 4 Appendix I HiNoC 2.0 and 1.0 brief comparison . 5 Appendix II Operational
15、notes 6 Bibliography. 7 Rec. ITU-T J.196.1 (03/2016) 1 Recommendation ITU-T J.196.1 Functional requirements for second generation HiNoC 1 Scope This Recommendation specifies requirements for second generation high performance network over coax (HiNoC) that provides 1 Gbit/s data transmission over a
16、premises coaxial network connected with fibre to the building (FTTB). 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were
17、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 edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendati
18、ons 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 J.195.1 Recommendation ITU-T J.195.1 (2016), Functional requirements for high speed transmission over coaxial networks connected with
19、fiber to the building. ITU-T J.195.2 Recommendation ITU-T J.195.2 (2014), Physical layer specification for high speed transmission over coaxial networks. ITU-T J.195.3 Recommendation ITU-T J.195.3 (2014), Medium Access Control layer specification for high speed transmission over coaxial networks. 3
20、Definitions 3.1 Terms defined elsewhere None. 3.2 Terms defined in this Recommendation None. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: 3DTV three Dimensional Television ARQ Automatic Repeat request CPS Common Part Sublayer CS Convergence Sublayer
21、 DBA Dynamic Bandwidth Allocation FEC Forward Error Correction FTTB Fibre To The Building HD High Definition HiNoC High performance Network over Coax 2 Rec. ITU-T J.196.1 (03/2016) IPv4 Internet Protocol version 4 IPv6 Internet Protocol version 6 LDPC Low Density Parity Check MAC Media Access Contro
22、l OAM Operation, Administration and Maintenance OFDM Orthogonal Frequency Division Multiplexing OFDMA Orthogonal Frequency-Division Multiple Access PHY Physical PON Passive Optical Network QoS Quality of Service SD Standard Definition SS Security Sublayer TV Television UHDTV Ultra High Definition Te
23、levision VoIP Voice over Internet Protocol 5 Conventions In this Recommendation: The keywords “is required to“ indicate a requirement which must be strictly followed and from which no deviation is permitted if conformance to this document is to be claimed. The keywords “is recommended“ indicate a re
24、quirement which is recommended but which is not absolutely required. Thus this requirement need not be present to claim conformance. The keywords “is prohibited from“ indicate a requirement which must be strictly followed and from which no deviation is permitted if conformance to this document is to
25、 be claimed. The keywords “can optionally“ indicate an optional requirement which is permissible, without implying any sense of being recommended. This term is not intended to imply that the vendors implementation must provide the option and the feature can be optionally enabled by the network opera
26、tor/service provider. Rather, it means the vendor may optionally provide the feature and still claim conformance with the specification. In the body of this document and its annexes, the words shall, shall not, should and may sometimes appear, in which case they are to be interpreted, respectively,
27、as is required to, is prohibited from, is recommended, and can optionally. The appearance of such phrases or keywords in an appendix or in material explicitly marked as informative are to be interpreted as having no normative intent. The keywords “HiNoC 1.0“ indicate the HiNoC system defined by ITU-
28、T J.195.1, ITU-T J.195.2 and ITU-T J.195.3. The keywords “HiNoC 2.0“ indicate the second generation HiNoC. 6 Architecture The logic architecture model and protocol stack of HiNoC 2.0 refers to clause 6 of ITU-T J.195.1. Rec. ITU-T J.196.1 (03/2016) 3 7 Requirement 7.1 Functional requirement HiNoC 2.
29、0-Gen-1 HiNoC 2.0 is required to be applied to the passive coaxial access network in a premises network. HiNoC 2.0-Gen-2 HiNoC 2.0 is required to support any IP-based services, such as standard definition (SD) or high definition (HD) television (TV), three dimensional TV (3DTV), ultrahigh definition
30、 TV (UHDTV), interactive services, voice over Internet protocol (VoIP) and Internet access. HiNoC 2.0-Gen-3 HiNoC 2.0 is required not to affect the adjacent channels that provide services and deployments such as analogue broadcasting, digital broadcasting and data services. HiNoC 2.0-Gen-4 HiNoC 2.0
31、 is required to support a tree distribution structure and centralized distribution structure of a coaxial cable access network. HiNoC 2.0-Gen-5 HiNoC 2.0 is recommended to be applicable below the 1.2 GHz frequency band on a coaxial network. HiNoC 2.0-Gen-6 HiNoC 2.0 is required to be robust enough t
32、o resist the interference and micro-reflection in a short-range coaxial environment. HiNoC 2.0-Gen-7 HiNoC 2.0 is required to allocate downstream and upstream bandwidth flexibly (symmetrical/asymmetrical scenario). HiNoC 2.0-Gen-8 HiNoC 2.0 is required to support 128 MHz bandwidth per channel. HiNoC
33、 2.0-Gen-9 HiNoC 2.0 is required to support channel bonding to provide a higher transmission rate. HiNoC 2.0-Gen-10 HiNoC 2.0 is required to be able to schedule the time-slot for the master-node and client-node to send or receive. HiNoC 2.0-Gen-11 HiNoC 2.0 is required to support end-to-end operatio
34、n, administration and maintenance (OAM) integration with a passive optical network (PON). HiNoC 2.0-Gen-12 HiNoC 2.0 is required to avoid spectrum overlap with existing cable services. HiNoC 2.0-Gen-13 HiNoC 2.0 is required to be compatible with HiNoC 1.0. HiNoC 2.0-Gen-14 The screening attenuation
35、of the coaxial cable to connect the HiNoC 2.0 system is required to be higher than 60 dB. 7.2 Requirements of PHY layer HiNoC 2.0-PHY-1 HiNoC 2.0 is required to be based on orthogonal frequency division multiplexing (OFDM) modulation. HiNoC 2.0-PHY-2 HiNoC 2.0 physical (PHY) layer is required to sup
36、port adaptive constellation mapping function for each OFDM subcarrier in accordance with the channel conditions in the coaxial network. HiNoC 2.0-PHY-3 HiNoC 2.0 PHY is required to support a flexible forward error correction (FEC) encoding rate in accordance with channel conditions in the coaxial ne
37、twork. HiNoC 2.0-PHY-4 HiNoC 2.0 PHY is required to satisfy out-of-band attenuation to reduce the adjacent channel interference in the coaxial network. HiNoC 2.0-PHY-5 HiNoC 2.0 PHY is required to perform channel estimation in the connections between master-node and client-node. 4 Rec. ITU-T J.196.1
38、 (03/2016) 7.3 Requirements of MAC layer 7.3.1 System requirements of the convergence sublayer (CS) layer HiNoC 2.0-MAC-1 HiNoC 2.0 media access control (MAC) layer is required to support an address learning function. HiNoC 2.0-MAC-2 HiNoC 2.0 MAC is required to support a packing and unpacking of da
39、ta frames function. HiNoC 2.0-MAC-3 HiNoC 2.0 MAC is required to support Internet protocol version 4 (IPv4) and Internet protocol version 6 (IPv6). HiNoC 2.0-MAC-4 HiNoC 2.0 MAC is required to support a dynamic bandwidth allocation (DBA) function. HiNoC 2.0-MAC-5 HiNoC 2.0 MAC is required to support
40、 a service priority mapping function. HiNoC 2.0-MAC-6 HiNoC 2.0 MAC is required to support a stream classification function. HiNoC 2.0-MAC-7 HiNoC 2.0 MAC is required to support a quality of service (QoS) control function. HiNoC 2.0-MAC-8 HiNoC 2.0 MAC is recommended to support a multicast services
41、management and packet filter function. 7.3.2 System requirements of the common part sublayer (CPS) HiNoC 2.0-MAC-9 HiNoC 2.0 MAC is required to support a channel allocation function. HiNoC 2.0-MAC-10 HiNoC 2.0 MAC is required to support a node quitting and deletion function. HiNoC 2.0-MAC-11 HiNoC 2
42、.0 MAC is required to support a link maintenance function. HiNoC 2.0-MAC-12 HiNoC 2.0 MAC is required to support an automatic repeat request (ARQ). 7.3.3 System requirements of the security sublayer (SS) layer HiNoC 2.0-MAC-13 HiNoC 2.0 MAC is required to support an identity function. HiNoC 2.0-MAC-
43、14 HiNoC 2.0 MAC is required to support an authentication function. HiNoC 2.0-MAC-15 HiNoC 2.0 MAC is required to support a data encryption function. HiNoC 2.0-MAC-16 HiNoC 2.0 MAC is required to support a key management function. Rec. ITU-T J.196.1 (03/2016) 5 Appendix I HiNoC 2.0 and 1.0 brief com
44、parison (This appendix does not form an integral part of this Recommendation.) HiNoC 2.0 is the second generation HiNoC. HiNoC 1.0 refers to the HiNoC system defined by ITU-T J.195.1, ITU-T J.195.2 and ITU-T J.195.3. Considering the operators facing rapid increasing bandwidth pressure, HiNoC 2.0 pri
45、marily aims at enhancing the data transmission speed of the HiNoC system up to 1 Gbit/s. A new channel coding is defined in HiNoC 2.0 to improve the robustness of the HiNoC system. HiNoC 2.0 can provide smaller DBA granularity and lower latency transmission. HiNoC 2.0 is compatible with HiNoC 1.0; H
46、iNoC 1.0 HiNoC modem (HM) can register with HiNoC 2.0 HiNoC bridge (HB). A brief comparison of HiNoC 2.0 and HiNoC 1.0 is shown as Table I.1. Table I.1 HiNoC 2.0 and 1.0 brief comparison Key parameters HiNoC 2.0 HiNoC 1.0 Working frequency Below 1.2 GHz Below 1.2 GHz Transmission speed Up to 1 Gbit/
47、s Up to 100 Mbit/s Spectrum bandwidth 128 MHz/channel (supporting channel bundle) 16 MHz/channel (supporting channel bundle) Modulation OFDM, adaptive subcarrier modulation OFDM, adaptive subcarrier modulation Constellation DQPSK, QPSK/8QAM/16QAM/32QAM/ 64QAM/128QAM/256QAM/ 512QAM/1024QAM/2048QAM/ 4
48、096QAM DQPSK, QPSK/8QAM/16QAM/32QAM/ 64QAM/128QAM/256QAM/ 512QAM/1024QAM Carrier number 2048 (1982 effective) 256 (210 effective) Channel coding BCH, low density parity check (LDPC) BCH Duplex/multi-access mode TDD/TDMA, orthogonal frequency-division multiple access (OFDMA) (optional) TDD/TDMA 6 Rec
49、. ITU-T J.196.1 (03/2016) Appendix II Operational notes (This appendix does not form an integral part of this Recommendation.) Possible interference from or to the wireless signal or radiocommunication services, such as terrestrial broadcast, global system for mobile communications (GSM), 3G/4G, Wi-Fi and aeronautical navigation, might degrade the signal or service quality both in coaxial cable and in air, and can even be risky to flight safety in the worst-case scenario. Therefor
