ETSI TS 102 639-4-2009 Access and Terminals Transmission and Multiplexing (ATTM) Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems P.pdf

1、 ETSI TS 102 639-4 V1.1.1 (2009-04)Technical Specification Access and Terminals, Transmission and Multiplexing (ATTM);Third Generation Transmission Systems forInteractive Cable Television Services - IP Cable Modems;Part 4: MAC and Upper Layer ProtocolsITU-T Recommendation J.222.2 (07/2007), modified

2、ETSI ETSI TS 102 639-4 V1.1.1 (2009-04) 2 Reference DTS/ATTM-02006-4 Keywords access, broadband, cable, endorsement, MAC, modem ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non

3、 lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived diffe

4、rence in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware th

5、at the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/p

6、ortal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2009. All rights reserved. DECTTM, PL

7、UGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being registered f

8、or the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 102 639-4 V1.1.1 (2009-04) 3 Contents Intellectual Property Rights4 Foreword.4 Introduction 4 1 Scope 5 2 References 5 2.1 Normative r

9、eferences .5 2.2 Informative references6 3 Definitions and abbreviations.6 3.1 Definitions6 3.2 Abbreviations .9 Endorsement notice 10 Modifications to ITU-T Recommendation J.222.2 .10 Annex A (informative): Bibliography.11 History 14 ETSI ETSI TS 102 639-4 V1.1.1 (2009-04) 4 Intellectual Property R

10、ights 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 publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essenti

11、al, 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 ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has be

12、en 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 are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI T

13、echnical Committee Access, Terminals, Transmission and Multiplexing (ATTM). The present document is part 4 of a multi-part deliverable covering Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable modems. Full details of the entire series can be found in part 1

14、i.1. Introduction This European Standard (Cable DOCSIS 3.0 Network series) has been produced by ETSI Access, Terminals, Transmission and Multiplexing Technical Committee (ATTM), Cable Access Network sub-group. ETSI ETSI TS 102 639-4 V1.1.1 (2009-04) 5 1 Scope The present document is part of a series

15、 of ETSI standards that define the third generation of high-speed data-over-cable systems. The third-generation transmission systems introduces a number of new features that build upon what was present in previous versions (ES 201 488 4 and ES 202 488-2 3). The present document includes key new feat

16、ures for the MAC and Upper Layer Protocol Interface, and defines the MAC layer protocols as well as requirements for upper layer protocols (e.g. IP, DHCP, etc.). These series of ETSI standards were developed for the benefit of the cable industry, including contributions by operators and vendors from

17、, Europe, North America and other regions. The source material for this specification was provided by the ITU-T Recommendation J.222.2 8 for which the most recent version can be found at http:/www.itu.int/ITU-T/. NOTE: Also refer to TS 102 639-1 i.2 for the background and overview of the DOCSIS 3.0

18、family of ETSI standards. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part the

19、reof and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location

20、 might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are indispensable for the application of the presen

21、t document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. 1 ETSI TS 102 639-3: “Access and Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for

22、 Interactive Cable Television Services - IP Cable Modems; Part 3: Downstream Interface; ITU-T Recommendation J.210 (11/2006), modified“. 2 ETSI TS 102 639-2: “Access and Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television Services -

23、 IP Cable Modems; Part 2: Physical Layer: ITU-T Recommendation J.222.1 (07/2007), modified“. 3 ETSI ES 202 488-2: “Access and Terminals (AT); Second Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 2: Radio frequency interface specification“. 4 ETSI E

24、S 201 488: “Access and Terminals (AT); Data Over Cable Systems“. ETSI ETSI TS 102 639-4 V1.1.1 (2009-04) 6 5 ETSI TS 102 639-5: “Access and Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 5: Secu

25、rity Services; ITU-T Recommendation J.222.3 (07/2007), modified“. 6 ETSI TS 101 909-5: “Access and Terminals (AT);Digital Broadband Cable Access to the Public Telecommunications Network; IP Multimedia Time Critical Services; Part 5: Dynamic Quality of Service for the Provision of Real Time Services

26、over Cable Television Networks using Cable Modems“. 7 ETSI TS 101 909-4: “Digital Broadband Cable Access to the Public Telecommunications Network; IP Multimedia Time Critical Services; Part 4: Network Call Signalling Protocol Partial Endorsement of ITU-T Recommendation J.162 (11/2005), modified“. 8

27、ITU-T Recommendation J.222.2. “MAC and Upper Layer protocols for third-generation transmission systems for interactive cable television services - IP cable modems“. 2.2 Informative references The following referenced documents are not essential to the use of the present document but they assist the

28、user with regard to a particular subject area. For non-specific references, the latest version of the referenced document (including any amendments) applies. i.2 ETSI TS 102 639-1: “Access and Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cabl

29、e Television Services - IP Cable Modems; Part 1: General“. i.3 ETSI TS 102 639-4: “Access and Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 4: MAC and Upper Layer Protocols; ITU-T Recommendatio

30、n J.222.2 (07/2007), modified“. i.4 ITU-T Recommendation J.222.1: “Third-generation transmission systems for interactive cable television services - IP cable modems: Physical layer specification“. i.5 ITU-T Recommendation J.210: “Downstream RF Interface for Cable Modem Termination Systems“. i.6 ITU-

31、T Recommendation J.222.3: “Third-generation transmission systems for interactive cable television services - IP cable modems: Security services“. i.7 ITU-T Recommendation J.112: “Transmission systems for interactive cable television services“. i.8 ITU-T Recommendation J.122: “Second-generation trans

32、mission systems for interactive cable television services - IP cable modems“. i.9 ITU-T Recommendation J.163: “Dynamic quality of service for the provision of real-time services over cable television networks using cable modems“. i.10 ITU-T Recommendation J.162: “Network call signalling protocol for

33、 the delivery of time-critical services over cable television networks using cable modems“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: active codes: set of spreading codes which carry information in an S-CDMA u

34、pstream NOTE: The complementary set, the unused codes, are idle and are not transmitted. Reducing the number of active codes below the maximum value of 128 may provide advantages including more robust operation in the presence of coloured noise. ETSI ETSI TS 102 639-4 V1.1.1 (2009-04) 7 bonded chann

35、el(s): one or more independent RF channels whose data packets are logically combined into one higher-speed data stream bonded channel Set: identified set of upstream or downstream channels among which a stream of packets is distributed bonding group: list of channels providing a means to identify th

36、e specific channels bonded together NOTE: Sometimes referred to as a “Bonded Channel Group“. cable modem service group: in the HFC plant topology, the complete set of downstream and upstream channels within a single CMTS that a single Cable Modem could potentially receive or transmit on NOTE: In mos

37、t HFC deployments, a CM-SG corresponds to a single Fiber Node. Usually, a CM-SG serves multiple CMs. DOCSIS 1.x: abbreviation for “DOCSIS 1.0 or 1.1“ downstream bonded service flow: downstream Service Flow for which DOCSIS MAC Frames are transmitted on one or more Downstream Channels downstream bond

38、ing group: subcomponent object of a MAC Domain that distributes packets from an assigned set of downstream bonding service flows to an associated set of downstream channels of that mac domain downstream service extended header: DOCSIS extended header that contains a Downstream Service ID (DSID) down

39、stream service group: complete set of Downstream Channels (DCs) from a single CMTS that could potentially reach a single Cable Modem NOTE: A DS-SG corresponds to a broadband forward carrier path signal from one CMTS. In an HFC deployment, a DS-SG corresponds to the downstream fiber transmission from

40、 one CMTS to one or more Fiber Nodes. load balancing group: full or partial subset of a MAC Domain Cable Modem Service Group (MD-CM-SG) to which a CM is administratively assigned NOTE: LBGs contain at least one upstream channel and at least one downstream channel. modular cable modem termination sys

41、tem: CMTS composed of discrete functional blocks linked together using Gigabit Ethernet links multiple outstanding requests: ability of the cable modem to make additional bandwidth request for new packets for a service flow while one or more previous requests for older packets remain unfulfilled Pre

42、-3.0 DOCSIS: versions of Data-Over-Cable-Service-Interface-Specifications (DOCSIS) specifications prior to the DOCSIS 3.0 suite of specifications primary-capable downstream channel: Downstream Channel that can be used by a DOCSIS 3.0 CM as its Primary Downstream Channel, or by a DOCSIS 1.x/2.0 CM as

43、 its Downstream Channel primary channel: See Primary Downstream Channel. primary downstream channel: downstream channel from which a CM derives CMTS master clock timing for upstream transmission NOTE: All other concurrently received channels are called “secondary downstream channels“. primary servic

44、e flow: first service flow, in each direction, defined in the CM configuration file queue-depth based request: request in multiples of bytes based on the CMs queue depth and QoS parameters for a specific service flow NOTE: This request does not include any estimation of physical layer overhead. rece

45、ive channel configuration: CMTS send the RCC encoding in the REG-RSP message. The RCC contains TLVs to initially configure a CMs Receive Channels (RCs) and Receive Modules (RMs) ETSI ETSI TS 102 639-4 V1.1.1 (2009-04) 8 receive channel profile: RCP describes a logical representation of the CMs downs

46、tream physical layer in terms of Receive Channels (RCs) and Receive Modules (RMs) NOTE: A Cable Modem reports its ability to receive multiple channels with one or more RCP Encodings in a REG-REQ message. receive channel set: set of downstream channels assigned to an individual CM is called its Recei

47、ve Channel Set, and is explicitly configured by the CMTS using the RCC encodings receive module: component in the CM physical layer implementation shared by multiple Receive Channels resequencing channel list: this is a list of channels on which the CM receives packets labelled with that DSID resequ

48、encing context: CM Resequencing Context, identified by a Resequencing DSID, is the set of Downstream Resequencing Channel List, Sequence Change Count, and DSID Resequencing Wait time NOTE: Downstream packets containing a Resequencing DSID and a sequence number are delivered, resequenced and forwarde

49、d according to the attributes of the Resequencing Context. resequencing downstream service identifier: downstream service identifier for which the CMTS signals packet resequencing attributes routing CMTS: CMTS that makes traffic forwarding decisions between its Network System Interfaces and MAC Domain Interfaces based upon the Layer 3 (network) address of a packet S-CDMA frame: two dimensional representation of mini-slots, where the dimensions are codes and time NOTE: An S-CDMA frame is composed of p active codes in the