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Access Technologies Interworking Page 2 / 62 Interworking This report is the work of the Q.8 technical group which includes Telecom Services Providers (TSPs) in Switzerland who handle the technological aspects of the interworking between the various broadband access technologies, with OFCOM heading the group. This document is purely informative and does not have legal obligation Final version: 18.04.01 Access Technologies Interworking Page 2 / 62 Q.8 Working Group Access Technologies Interworking Page 3 / 62 Table of contents: 1 Introduction ..............................................................................................................................5 2 Expectations and needs ............................................................................................................6 3 Definitions and terms used.......................................................................................................7 4 Abbreviations ...........................................................................................................................9 5 References ..............................................................................................................................13 6 Mandate of the Q.8 working group ........................................................................................14 6.1 Mandate .......................................................................................................................................... 14 6.2 Subjects which are not part of the discussions ...............................................................................14 6.3 Organisation of the project ............................................................................................................. 15 Part one: Architecture....................................................................................................................16 7 Reference model independent of the technology used...........................................................16 7.1 Priority of the interfaces in the reference model............................................................................. 18 8 Broadband access technologies..............................................................................................20 8.1 Digital Subscriber Line technologies (xDSL) ................................................................................ 20 8.1.1 ADSL technology..................................................................................................................................20 8.1.1.1 Scenario of ADSL architecture.....................................................................................................22 8.1.1.2 Location of possible Network-Network Interfaces (NNI) for ADSL ...........................................23 8.1.1.3 Possible Network Termination Points / User Network Interfaces.................................................24 8.1.1.4 Possible services with ADSL........................................................................................................24 8.1.1.5 Technical description of the interfaces and standards...................................................................25 8.1.1.5.1 The A interface.........................................................................................................................25 8.1.1.5.2 The DPhone interface (subscriber interface)................................................................................26 8.1.1.5.3 The Fdata interface (subscriber interface)...................................................................................27 8.1.1.5.4 The JADSL interface....................................................................................................................27 8.1.1.5.5 The K interfaces .......................................................................................................................28 8.1.2 SDSL technology...................................................................................................................................30 8.1.2.1 Scenario of SDSL architecture......................................................................................................31 8.1.2.2 Location of possible Network-Network Interfaces (NNI) for SDSL ............................................33 8.1.2.3 Possible Network Termination Points / User Network Interfaces.................................................33 8.1.2.4 Possible services with SDSL ........................................................................................................34 8.1.2.5 Technical description of the interfaces and standards...................................................................34 8.1.2.5.1 The A interface.........................................................................................................................34 8.1.2.5.2 The DPhone interface (subscriber interface)................................................................................35 8.1.2.5.3 The FData interface (subscriber interface)..................................................................................35 8.1.2.5.4 The JSDSL interface....................................................................................................................36 8.1.2.5.5 The K interface.........................................................................................................................36 8.2 Cable-modem / CATV technology................................................................................................. 38 8.2.1 Scenario of Cable-modem/CATV architecture......................................................................................39 8.2.2 Location of possible Network-Network Interfaces (NNI) for CATV....................................................40 8.2.3 Possible Network Termination Points / User Network Interfaces .........................................................40 8.2.4 Possible services with Cable-modem.....................................................................................................41 8.2.5 Technical description of the interfaces and standards ...........................................................................41 8.2.5.1 The A interface .............................................................................................................................41 8.2.5.2 The DPhone interface (subscriber interface) ....................................................................................42 8.2.5.3 The FDATA interface (subscriber interface)....................................................................................42 8.2.5.4 The JCATV interface........................................................................................................................42 Q.8 Working Group Access Technologies Interworking Page 4 / 62 8.2.5.4.1 JCATV DOCSIS ..........................................................................................................................43 8.2.5.4.2 JCATV Com21.............................................................................................................................44 8.2.5.4.3 JCATV Terayon ...........................................................................................................................45 8.2.5.4.4 JCATV EuroDocsis......................................................................................................................46 8.2.5.4.5 The K interfaces .......................................................................................................................46 8.3 Wireless Local Loop technology .................................................................................................... 48 8.3.1 Scenario of WLL architecture................................................................................................................49 8.3.2 Location of possible Network-Network Interfaces (NNI) for WLL......................................................50 8.3.3 Possible Network Termination Points / User Network Interfaces .........................................................51 8.3.4 Frequency Spectrum Management ........................................................................................................51 8.3.5 Possible services with WLL ..................................................................................................................51 8.3.6 Technical description of the interfaces and standards ...........................................................................52 8.3.6.1 The A interface .............................................................................................................................52 8.3.6.2 The D interface (subscriber interface)...........................................................................................52 8.3.6.3 The FDATA interface (subscriber interface)....................................................................................53 8.3.6.4 The JWLL interface .........................................................................................................................53 8.3.6.5 The K interfaces............................................................................................................................54 Part two: User Network Interfaces ................................................................................................56 9 Location of possible Network Termination Points (NTP) .....................................................56 10 Notification and publication
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