1、 ETSI TS 101 909-1 V1.4.1 (2006-04)Technical Specification Digital Broadband Cable Access to thePublic Telecommunications Network;IP Multimedia Time Critical Services;Part 1: GeneralETSI ETSI TS 101 909-1 V1.4.1 (2006-04) 2 Reference RTS/AT-020044-01 Keywords access, broadband, cable, intelligent ho
2、mes 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 ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searc
3、hes, 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 are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produce
4、d by ETSI Technical Committee Access and Terminals (AT). The present document is part 1 of a multi-part deliverable covering the Digital Broadband Cable Access to the Public Telecommunications Network; IP Multimedia Time Critical Services, as identified below: Part 1: “General“; Part 2: “Architectur
5、al framework for the delivery of time critical services over cable Television networks using cable modems“; Part 3: “Audio Codec Requirements for the Provision of Bi-Directional Audio Service over Cable Television Networks using Cable Modems“; Part 4: “Network Call Signalling Protocol“; Part 5: “Dyn
6、amic Quality of Service for the Provision of Real Time Services over Cable Television Networks using Cable Modems“; Part 6: “Media Terminal Adapter (MTA) device provisioning“; Part 7: “Management Information Base (MIB) Framework“; Part 8: “Media Terminal Adapter (MTA) Management Information Base (MI
7、B)“; Part 9: “Network Call Signalling (NCS) MIB Requirements“; Part 10: “Event Message Requirements for the Provision of Real Time Services over Cable Television Networks using Cable Modems“; Part 11: “Security“; Part 12: “Internet Signalling Transport Protocol (ISTP)“; Part 13: “Trunking Gateway Co
8、ntrol Protocol“; Part 16: “Signalling for Call Management Server ITU-T Recommendation J.178 (2003): Pre-Published Version, modified“; Part 17: “Inter-domain Quality of Service“; Part 18: “Embedded Media Terminal Adapter (e-MTA) offering an interface to analogue terminals and Cable Modem“; Part 19: “
9、IPCablecom Audio Server Protocol Specification“; Part 20: “Lawful Interception“; Part 22: “Management Event Messages“; ETSI ETSI TS 101 909-1 V1.4.1 (2006-04) 5 Part 23: “Internet Protocol Access Terminal - Line Control Signalling (IPAT - LCS)“; Part 24: “MTA Basic Access ISDN Interface (MTA-ISDN)“;
10、 Part 26: “Protocol Implementation Conformance Statement (PICS) proforma specification“; NOTE 1: Additional parts may be proposed and will be added to the list in future versions. NOTE 2: The choice of a multi-part format for this deliverable is to facilitate maintenance and future enhancements. Int
11、roduction The cable industry in Europe and across other regions have already deployed broadband cable television Hybrid Fibre Coax (HFC) data networks running Protocols like the ones specified in ES 201 488 2 or ES 200 800 3. The Cable Industry is in the rapid stages of deploying IP Voice and other
12、time critical multimedia services over these broadband cable television networks. The cable industry has recognized the urgent need to develop ETSI Technical Specifications aimed at developing interoperable interface specifications and mechanisms for the delivery of end to end advanced real time IP
13、multimedia time critical services over bi-directional broadband cable networks. IPCablecom is a set of protocols and associated element functional requirements developed to deliver Quality of Service (QoS) enhanced secure IP multimedia time critical communications services using packetized data tran
14、smission technology to a consumers home over the broadband cable television Hybrid Fibre/Coaxial (HFC) data network running the Cable Modem protocol. IPCablecom utilizes a network superstructure that overlays the two-way data-ready cable television network. While the initial service offerings in the
15、 IPCablecom product line are anticipated to be Packet Voice, the long-term project vision encompasses packet video and a large family of other packet-based services. The cable industry is a global market and therefore the ETSI standards are developed to align to the extent possible with standards ei
16、ther already developed or under development in other regions. The ETSI Specifications are consistent to the extent possible with the CableLabs/PacketCable set of specifications as published by the SCTE. An agreement has been established between ETSI and SCTE in the US to ensure, where appropriate, t
17、hat the release of PacketCable and IPCablecom set of specifications are aligned and to avoid unnecessary duplication. The set of IPCablecom ETSI specifications also refers to ITU-SG9 draft and published recommendations relating to IP Cable Communication. The whole set of multi-part IPCablecom ETSI d
18、eliverables to which the present document belongs specify a Cable Communication Service for the delivery of IP Multimedia Time Critical Services over a HFC Broadband Cable Network to the consumers home cable telecom terminal. ETSI ETSI TS 101 909-1 V1.4.1 (2006-04) 6 1 Scope The present set of docum
19、ents specifies IPCablecom, a set of protocols and associated element functional requirements. These have been developed to deliver Quality of Service (QoS), enhanced secure IP multimedia time critical communication services, using packetized data transmission technology to a consumers home over a ca
20、ble television Hybrid Fibre/Coaxial (HFC) data network. NOTE 1: IPCablecom set of documents utilize a network superstructure that overlays the two-way data-ready cable television network, e.g. as specified within ES 201 488 2 and ES 200 800 3. While the initial service offerings in the IPCablecom pr
21、oduct line are anticipated to be Packet Voice and Packet Video, the long-term project vision encompasses a large family of packet-based services. This may require in the future, not only careful maintenance control, but also an extension of the present set of documents. NOTE 2: The present set of do
22、cuments aims for global acceptance and applicability. It is therefore developed in alignment with standards either already existing or under development in other regions and in International Telecommunications Union (ITU). The present document is part 1 of the above mentioned series of ETSI delivera
23、bles and specifies general aspects of IPCablecom based on J.16x and J.17x ITU-T series of Recommendations. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date
24、of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at
25、 http:/docbox.etsi.org/Reference. 1 ITU-T Recommendation J.112: “Transmission systems for interactive cable television services“. 2 ETSI ES 201 488 (all parts): “Access and Terminals (AT); Data Over Cable Systems“. 3 ETSI ES 200 800: “Digital Video Broadcasting (DVB); DVB interaction channel for Cab
26、le TV distribution systems (CATV)“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: access node: layer two termination device that terminates the network end of the ITU-T Recommendation J.112 connection NOTE: The de
27、finition of “access node“ is technology specific. In ES 201 488 2 and in ITU-T Recommendation J.112, annex A 1, it is called the INA while in ES 200 800 3 and in ITU-T Recommendation J.112, annex B 1 it is the CMTS. cable modem: layer two termination device that terminates the customer end of the J.
28、112 connection ETSI ETSI TS 101 909-1 V1.4.1 (2006-04) 7 IPCablecom: ETSI deliverables including an architecture and a series of Specifications that enable the delivery of real time services (such as telephony) over the cable television networks using cable modems 3.2 Abbreviations For the purposes
29、of the present document, the following abbreviations apply: CMS Call Management Server CMTS Cable Modem Termination System DHCP Dynamic Host Configuration Protocol HFC Hybrid Fibre Coax IP Internet ProtocolIPAT IP Access Terminal ISTP Internet Signalling Transport Protocol LCS Large Capacity Storage
30、 LCS Line Control Signalling LEA Law Enforcement AgencyMGCP Media Gateway Control Protocol MIB Management Information Base MTA Media Terminal Adapter NCS Network Call Signalling PICS Protocol Implementation Conformance Statement PSTN Public Switched Telephone Network QoS Quality of Service TFTP Triv
31、ial File Transfer Protocol TGCP Trunking Gateway Control Protocol 4 Overview of the multi-part deliverable The TS 101 909 series together present an IPCablecom network architecture for the provision of voice and multimedia IP services. The TS 101 909 series of standards represent a set of cohesive s
32、et of interwoven specifications that jointly evolved to present different phases of IPCablecom network developments. Changes made to one part of the series have to identify the consequence to other parts of the series to ensure the elements interface together properly. 4.1 Part 1: General The presen
33、t document. 4.2 Part 2: Architectural framework Defines architecture framework for IPCablecom networks including all major system components and network interfaces necessary for delivery of IPCablecom services. 4.3 Part 3: Audio Codec Requirements Defines the audio and video codecs necessary to prov
34、ide the highest quality and the most resource-efficient service delivery to the customer. Also specifies the performance required in client devices to support future IPCablecom codecs and describes suggested methodology for optimal network support for codecs. Offering a competitive and/or superior p
35、roduct requires support for more than high-quality delivery of audio. In addition to features and signalling capabilities, which are beyond the scope of this document, the audio codec application must provide transparent support for certain audio features. These include general detection mechanisms,
36、 DTMF, fax, analog modem, echo cancellation, and hearing-impaired support. ETSI ETSI TS 101 909-1 V1.4.1 (2006-04) 8 4.4 Part 4: Network Call Signalling Protocol ETSI TS 101 909-4 adopts ITU-T Recommendation J.162 with some ETSI extensions defined within TS 101 909-4. This part specifies a profile o
37、f an application programming interface, Media Gateway Controller Interface (MGCI), and a corresponding protocol, Media Gateway Control Protocol (MGCP), for controlling Voice over IP (VoIP) embedded clients from external call control elements. The MGCP is based on a call control architecture, where t
38、he call control “intelligence“ resides outside the gateways and is handled by external call control elements. The profile, as described in TS 101 909-4, is referred to as the Network Call Signalling (NCS) Protocol. 4.5 Part 5: Dynamic Quality of Service Defines the QoS Architecture for the “Access“
39、portion of the IPCablecom network, provided to requesting applications on a per-flow basis. The access portion of the network is defined to be between the Multimedia Terminal Adapter (MTA) and the Cable Modem Termination System (CMTS). The method of QoS allocation over the backbone is unspecified in
40、 the present edition of TS 101 909-5. The Dynamic QoS specification incorporates protocols to enable providers of packet-based voice communications using the IPCablecom framework to use different charging models, including both flat-rate charging as well as usage-based charging. It is the intent of
41、TS 101 909-5 to ensure that enhanced QoS is provided only to authorized and authenticated users. The Dynamic QoS specification recognizes the requirements of a commercially viable voice communications service analogous to that offered by means of the public switched telephone network. It is importan
42、t to ensure that resources are available before the two parties involved in the session are invited to communicate. Thus, resources are reserved before the recipient of the communication is notified that someone is trying to initiate a communication. If there are insufficient resources for a session
43、, then the session is blocked. 4.6 Part 6: Media Terminal Adapter (MTA) device provisioning ETSI TS 101 909-6 adopts ITU-T Recommendation J.167 with some ETSI extensions defined within TS 101 909-6. This part defines the protocol mechanisms for provisioning of an IPCablecom embedded-MTA device by a
44、single provisioning and network management provider. 4.7 Part 7: Management Information Base (MIB) Framework Describes the framework in which IPCablecom MIBs (Management Information Base) are defined. It provides information on the management requirements of IPCablecom specified devices and function
45、s, and how these requirements are supported in the MIB. It is intended to support and complement the actual MIB documents, which are issued separately. The original ETSI published version of TS 101 909-7 defined the MIB in full. However, in later versions of TS 101 909-7 reference to the latest IETF
46、 IPCDN published MIB was used. 4.8 Part 8: Media Terminal Adapter (MTA) Management Information Base (MIB) Defines the MIB module which supplies the basic management objects for the MTA Device. The original ETSI published version of TS 101 909-8 defined the MIB in full. However, in later versions of
47、TS 101 909-8 reference to the latest IETF IPCDN published MIB was used. ETSI ETSI TS 101 909-1 V1.4.1 (2006-04) 9 4.9 Part 9: Network Call Signalling (NCS) MIB Requirements Defines the MIB module which supplies the basic management object for the NCS protocol. The original ETSI published version of
48、TS 101 909-8 defined the MIB in full. However, in later versions of TS 101 909-8 reference to the latest IETF IPCDN published MIB was used. 4.10 Part 10: Event Message Requirements Defines the concept of Event Messages used to collect usage for the purposes of billing within the IPCablecom architect
49、ure. An Event Message is a data record containing information about network usage and activities. A single Event Message may contain a complete set of data regarding usage or it may only contain part of the total usage information. When correlated by the Record Keeping System (RKS), information contained in multiple Event Messages provides a complete record of the service. This complete record of the service is often referred to as a Call Detail Record (CDR). Event Messages or CDRs may be sent to one or more back office applications such as a billing system,
