ITU-T G 989 3-2015 40-Gigabit-capable passive optical networks (NG-PON2) Transmission convergence layer specification (Study Group 15)《吉比特无源光网络40 传输汇聚层规范(研究组15)》.pdf
《ITU-T G 989 3-2015 40-Gigabit-capable passive optical networks (NG-PON2) Transmission convergence layer specification (Study Group 15)《吉比特无源光网络40 传输汇聚层规范(研究组15)》.pdf》由会员分享,可在线阅读,更多相关《ITU-T G 989 3-2015 40-Gigabit-capable passive optical networks (NG-PON2) Transmission convergence layer specification (Study Group 15)《吉比特无源光网络40 传输汇聚层规范(研究组15)》.pdf(250页珍藏版)》请在麦多课文档分享上搜索。
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 G.989.3 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (10/2015) SERIES G: TRANSMISSION SYSTEMS AND MEDIA,IGITAL SYSTEMS AND NETWORKS Digital sections and digital line system Optical line systems for local and access netwo
2、rks 40-Gigabit-capable passive optical networks (NG-PON2): Transmission convergence layer specification Recommendation ITU-T G.989.3 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACT
3、ERISTICS 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 MET
4、ALLIC LINES 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 General G.900G.909 Parameters f
5、or optical fibre cable systems G.910G.919 Digital sections at hierarchical bit rates based on a bit rate of 2048 kbit/s G.920G.929 Digital line transmission systems on cable at non-hierarchical bit rates G.930G.939 Digital line systems provided by FDM transmission bearers G.940G.949 Digital line sys
6、tems G.950G.959 Digital section and digital transmission systems for customer access to ISDN G.960G.969 Optical fibre submarine cable systems G.970G.979 Optical line systems for local and access networks G.980G.989 Metallic access networks G.990G.999 MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE GEN
7、ERIC 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 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T G.989
8、.3 (10/2015) i Recommendation ITU-T G.989.3 40-Gigabit-capable passive optical networks (NG-PON2): Transmission convergence layer specification Summary Recommendation ITU-T G.989.3 specifies the transmission convergence layer of 40 Gigabit-capable passive optical network (NG-PON2) systems providing
9、optical access for residential, business, mobile backhaul and other applications. A NG-PON2 system supports multiple wavelength channels and enables flexibility to add capacity as the demand grows to 100 Gbit/s and beyond. A NG-PON2 system may contain a set of time and wavelength division multiplexi
10、ng (TWDM) channels, or a set of point-to-point wavelength division multiplexing (PtP WDM) channels, or both. The TWDM channels operate at the nominal line rates of 9.95328 and 2.48832 Gbit/s in both downstream and upstream directions. The PtP WDM channels support nominal line rate classes of 1.25 Gb
11、it/s, 2.5 Gbit/s and 10 Gbit/s, depending on the PtP WDM client. The transmission convergence (TC) layer is the protocol layer of the NG-PON2 system that is positioned between the physical media dependent (PMD) layer and service clients. It builds on the Recommendation ITU-T G.987.3, with modificati
12、ons for NG-PON2 specific features. This Recommendation forms an integral part of the ITU-T G.989 series of Recommendations (ITU-T G.989, ITU-T G.989.1 and ITU-T G.989.2) that, together with the ONU management and control interface (OMCI), Recommendation ITU-T G.988, specifies a coherent set of acces
13、s transmission systems. The NG-PON2 system is also a member of the ITU-T G.9802 family. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.989.3 2015-10-22 15 11.1002/1000/12562 Keywords Auxiliary management and control channel transmission convergence, AMCC TC, framing subla
14、yer, FS, 40 Gigabit-capable passive optical network, NG-PON2, point-to-point wavelength division multiplexing, PtP WDM, time and wavelength division multiplexing subsystem transmission convergence, TWDM TC. * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of yo
15、ur web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T G.989.3 (10/2015) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and co
16、mmunication 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 issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis.
17、 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 topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resoluti
18、on 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 “Administration“ is used for conciseness to indicate both a telecommunication administration and
19、 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) and compliance with the Recommendation is achieved when all of these mandatory provisions are me
20、t. 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 Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibi
21、lity 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 claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Rec
22、ommendation 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 Recommendation. However, implementers are cautioned that this may not represent the latest information a
23、nd are therefore strongly urged to consult the TSB patent database at http:/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 G.989.3 (10/2015) iii Table of Contents Pa
24、ge 1 Scope . 1 2 References . 2 3 Definitions 2 4 Abbreviations and acronyms 3 5 Conventions 3 6 NG-PON2 transmission convergence layer overview 3 6.1 TWDM transmission convergence layer 3 6.2 PtP WDM AMCC transmission convergence layer overview . 17 7 TWDM resource allocation and quality of service
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