ITU-T G 9807 1 AMD 1-2017 10-Gigabit-capable symmetric passive optical network (XGS-PON) Amendment 1 (Study Group 15).pdf

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1、 section 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 G.9807.1 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 1 (10/2017) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Access networks Optical line systems for local and access network

2、s 10-Gigabit-capable symmetric passive optical network (XGS-PON) Amendment 1 Recommendation ITU-T G.9807.1 (2016) Amendment 1 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTIC

3、S COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC L

4、INES G.400G.449 COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450G.499 TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS G.600G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 DIGITAL NETWORKS G.800G.899 DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 MULTIMEDIA QUALITY OF SERVICE AND PERF

5、ORMANCE GENERIC AND USER-RELATED ASPECTS G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS G.6000G.6999 DATA OVER TRANSPORT GENERIC ASPECTS G.7000G.7999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 ACCESS NETWORKS G.9000G.9999 Metallic access networks G.9700G.9799 Optical line systems for local and acce

6、ss networks G.9800G.9899 In premises networks G.9900G.9999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T G.9807.1 (2016)/Amd.1 (10/2017) i Recommendation ITU-T G.9807.1 10-Gigabit-capable symmetric passive optical network (XGS-PON) Amendment 1 Summary Recommendat

7、ion ITU-T G.9807.1 describes a 10-Gigabit-capable symmetric passive optical network (XGS-PON) system in an optical access network for residential, business, mobile backhaul and other applications. This system operates over a point-to-multipoint optical access infrastructure at the nominal data rate

8、of 10 Gbit/s both in the downstream and the upstream directions. This Recommendation contains the common definitions, acronyms, abbreviations, conventions, general requirements, physical media dependent layer requirements, and transmission convergence layer requirements of the XGS-PON system. Amendm

9、ent 1 to Recommendation ITU-T G.9807.1 (2016) contains necessary additional details and clarifications for the Recommendation, and provides regular specification maintenance. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.9807.1 2016-06-22 15 11.1002/1000/12834 1.1 ITU-T

10、G.9807.1 (2016) Amd. 1 2017-10-07 15 11.1002/1000/13293 Keywords 10 Gigabit, co-existence, dual-rate, general requirement, optional wavelength set, Passive optical network, PON, physical medium dependent, PLOAM, PMD, symmetric line rates, transmission conformance, TC, XGS-PON, XGS-PON TC. * To acces

11、s 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:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T G.9807.1 (2016)/Amd.1 (10/2017) FOREWORD The International Telecommunication Union (ITU

12、) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issu

13、ing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these top

14、ics. 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 purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression

15、 “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability)

16、 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 the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recomm

17、endation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of c

18、laimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected by patents, which may be required to implement this Recomme

19、ndation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2017 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, w

20、ithout the prior written permission of ITU. Rec. ITU-T G.9807.1 (2016)/Amd.1 (10/2017) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 4 3.1 Terms defined elsewhere 4 3.2 Terms defined in this Recommendation . 7 4 Abbreviations and acronyms 10 5 Conventions 17 5.1 Optical acces

21、s concepts 17 5.2 Multi-wavelength PON system reference points 18 5.3 Optical power and loss parameters . 18 5.4 Dynamic range, sensitivity and overload . 19 5.5 Sensitivity and overload in the presence of FEC 19 5.6 Reach and distance . 19 5.7 Use of the term PON 20 5.8 Use of the term ODN 21 5.9 U

22、se of the terms ONU and ONT 21 5.10 Use of the terms T-CONT and Alloc-ID 21 5.11 Use of the terms bandwidth assignment and bandwidth allocation . 22 5.12 Use of the terms band and range 22 5.13 Transmitter enable control and associated transient times . 22 6 Overview of the XGS-PON Recommendation .

23、23 Annex A General requirements of XGS-PON 25 A.5 Architecture of the optical access network . 25 A.6 Migration scenarios 33 A.7 Service requirements 38 A.8 Physical layer requirements 43 A.9 System level requirements 45 A.10 Operational requirements . 46 A.11 Resilience and protection on ODN . 47 A

24、ppendix A.I Examples of practical XGS-PON system architecture 49 Appendix A.II Synchronizing requirements for wireless in CBU scenario 62 Appendix A.III External access network back-up 63 Appendix A.IV Operation with IEEE 1588 66 Appendix A.V Use cases for frequency and time of day synchronization .

25、 67 iv Rec. ITU-T G.9807.1 (2016)/Amd.1 (10/2017) Page Appendix A.VI Transport of ESMC messages over PON 72 Annex B Physical media dependent (PMD) layer specifications of XGS-PON . 74 B.6 Architecture of the optical access network . 74 B.7 Services . 75 B.8 User network interface and service node in

26、terface . 75 B.9 Optical network requirements 76 B.10 X/S tolerance of XGS-PON ONU 91 B.11 Upstream physical layer overhead 93 Appendix B.I Examples of wavelength allocation for XGS-PON, G-PON and video distribution services 94 Appendix B.II Physical layer measurements required to support optical la

27、yer supervision 95 Appendix B.III Allocation of the physical layer overhead time . 97 Appendix B.IV Jitter budget specifications 100 Appendix B.V Measurement of burst mode acquisition time and burst mode eye opening at OLT . 104 Appendix B.VI Upstream PMD examples for XGS-PON 107 Appendix B.VII Rama

28、n analysis in XGS-PON optional wavelength set . 109 Annex C Transmission convergence layer specifications of XGS-PON 111 C.6 XGS-PON transmission convergence layer overview . 111 C.7 Resource allocation and quality of service . 123 C.8 XGS-PON transmission convergence framing sublayer overview 132 C

29、.9 XGS-PON encapsulation method . 139 C.10 XGS-PON PHY adaptation sublayer 143 C.11 PLOAM messaging channel . 154 C.12 XGS-PON ONU activation 173 C.13 XGS-PON OLT and ONU timing relationships . 183 C.14 XGS-PON performance monitoring, supervision and defects . 193 C.15 XGS-PON security . 201 C.16 XG

30、S-PON power management 219 C.17 Channel management . 228 C.18 XGS-PON system protection . 228 C.19 Rogue behaviour and its mitigation 236 Annex C.A Hybrid error control (HEC) decoding and scrambler sequence codes 238 Annex C.B Forward error-correction using shortened Reed-Solomon codes 242 Annex C.C

31、 Secure mutual authentication via OMCI 243 Annex C.D Secure mutual authentication using IEEE 802.1X. 244 Rec. ITU-T G.9807.1 (2016)/Amd.1 (10/2017) v Page Annex C.E Auxiliary management and control channel. 245 Annex C.F Tuning sequences . 246 Annex C.G Transcoded framing with FEC and OAM for PtP WD

32、M AMCC TC . 247 Appendix C.I Downstream line data pattern conditioning . 248 Appendix C.II Time of day derivation and error analysis 249 Appendix C.III Burst profiles . 253 Appendix C.IV Golden vectors . 255 Appendix C.V Protection examples 259 Appendix C.VI ICTP: Inter-channel-termination protocol

33、. 260 Appendix C.VII ONU equalization delay coordination across TWDM channels 264 Appendix C.VIII PON-ID examples . 265 Appendix I Introduction of PMD parameters . 266 I.1 Relationship between OMA, extinction ratio, and average power . 266 Appendix II General statements on the relationship with NG-P

34、ON2 TC layer requirements . 267 Appendix III Use of 10GEPON 10GBASE-PR-D3 (OLT) and 10GBASE-PR-U3 (ONU) optical modules with XGS-PON symmetric 275 Bibliography. 279 Rec. ITU-T G.9807.1 (2016)/Amd.1 (10/2017) 1 Recommendation ITU-T G.9807.1 10-Gigabit-capable symmetric passive optical network (XGS-PO

35、N) Editorial note: This is a complete-text publication. Modifications introduced by this amendment are shown in revision marks relative to Recommendation ITU-T G.9807.1 (2016). 1 Scope This Recommendation defines a 10-Gigabit-capable symmetric passive optical network (XGS-PON) system in an optical a

36、ccess network for residential, business, mobile backhaul and other applications. XGS-PON systems are able to operate on the same optical distribution network (ODN) as XG-PON systems. The XGS-PON systems are capable of operating at the same wavelengths as an existing XG-PON system or operating at the

37、 gigabit-capable passive optical network (G-PON) wavelengths. Co-existence of XGS-PON with G-PON, 10-gigabit passive optical network (XG-PON) and next generation passive optical network 2 (NG-PON2) is supported. Maximal reuse of existing ITU-T PON Recommendations is made. The XGS-PON transmission co

38、nvergence (TC) layer is based on the NG-PON2 and XG-PON TC layers. No hardware-affecting modifications to the TC-layers are needed. It is expected that TC layer devices designed for time and wavelength division multiplexing (TWDM) PON will be able to operate as XGS-PON TC layer devices. The downstre

39、am optical physical medium dependent (PMD) specifications are derived from the XG-PON PMD. 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 edi

40、tions indicated were 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 val

41、id ITU-T Recommendations 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 G.652 Recommendation ITU-T G.652 (2009), Characteristics of a single-mode optical fibre and cable. ITU-T G.657 Re

42、commendation ITU-T G.657 (2012), Characteristics of a bending-loss insensitive single-mode optical fibre and cable for the access network. ITU-T G.703 Recommendation ITU-T G.703 (2016), Physical/electrical characteristics of hierarchical digital interfaces. ITU-T G.709 Recommendation ITU-T G.709/Y.1

43、331 (2016), Interfaces for the optical transport network. ITU-T G.783 Recommendation ITU-T G.783 (2006), Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks; and its amendments. ITU-T G.808.1 Recommendation ITU-T G.808.1 (2014), Generic protection switching Linear trai

44、l and subnetwork protection. ITU-T G.810 Recommendation ITU-T G.810 (1996), Definitions and terminology for synchronization networks. 2 Rec. ITU-T G.9807.1 (2016)/Amd.1 (10/2017) ITU-T G.813 Recommendation ITU-T G.813 (2003), Timing characteristics of SDH equipment slave clocks (SEC). ITU-T G.825 Re

45、commendation ITU-T G.825 (2000), The control of jitter and wander within digital networks which are based on the synchronous digital hierarchy (SDH); and its amendments. ITU-T G.872 Recommendation ITU-T G.872 (2012), Architecture of optical transport networks. ITU-T G.902 Recommendation ITU-T G.902

46、(1995), Framework Recommendation on functional access networks (AN) Architecture and functions, access types, management and service node aspects. ITU-T G.957 Recommendation ITU-T G.957 (2006), Optical interfaces for equipments and systems relating to the synchronous digital hierarchy. ITU-T G.959.1

47、 Recommendation ITU-T G.959.1 (2016), Optical transport network physical layer interfaces. ITU-T G.982 Recommendation ITU-T G.982 (1996), Optical access networks to support services up to the ISDN primary rate or equivalent bit rates. ITU-T G.983.1 Recommendation ITU-T G.983.1 (2005), Broadband opti

48、cal access systems based on Passive Optical Networks (PON). ITU-T G.983.3 Recommendation ITU-T G.983.3 (2001), A broadband optical access system with increased service capability by wavelength allocation. ITU-T G.984.1 Recommendation ITU-T G.984.1 (2008), Gigabit-capable passive optical networks (GP

49、ON): General characteristics. ITU-T G.984.2 Recommendation ITU-T G.984.2 (2003), Gigabit-capable Passive Optical Networks (GPON): Physical Media Dependent (PMD) layer specification. ITU-T G.984.5 Recommendation ITU-T G.984.5 (2014), Gigabit-capable passive optical networks (G-PON): Enhancement band. ITU-T G.984.6 Recommendation ITU-T G.984.6 (2008), Gigabit-capable passive optical n