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T-REC-G[1].984.3-200507-S!Amd1!PDF-E.pdf
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ITU-T Recommendation G.984.3 (2004) – Amendment 1 SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital sections and digital line system – Optical line systems for local and access networks Gigabit-capable Passive Optical Networks (G-PON): Transmission convergence layer specification Amendment 1
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International Telecommunication Union
ITU-T
G.984.3
TELECOMMUNICATION
STANDARDIZATION SECTOR
OF ITU
Amendment 1
(07/2005)
SERIES G: TRANSMISSION SYSTEMS AND MEDIA,
DIGITAL SYSTEMS AND NETWORKS
Digital sections and digital line system – Optical line
systems for local and access networks
Gigabit-capable Passive Optical Networks
(G-PON): Transmission convergence layer
specification
Amendment 1
ITU-T Recommendation G.984.3 (2004) – Amendment 1
ITU-T G-SERIES RECOMMENDATIONS
TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS
INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100–G.199
GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-
TRANSMISSION SYSTEMS
G.200–G.299
INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE
SYSTEMS ON METALLIC LINES
G.300–G.399
GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS
ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC
LINES
G.400–G.449
COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450–G.499
TRANSMISSION MEDIA CHARACTERISTICS G.600–G.699
DIGITAL TERMINAL EQUIPMENTS G.700–G.799
DIGITAL NETWORKS G.800–G.899
DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900–G.999
General G.900–G.909
Parameters for optical fibre cable systems G.910–G.919
Digital sections at hierarchical bit rates based on a bit rate of 2048 kbit/s G.920–G.929
Digital line transmission systems on cable at non-hierarchical bit rates G.930–G.939
Digital line systems provided by FDM transmission bearers G.940–G.949
Digital line systems G.950–G.959
Digital section and digital transmission systems for customer access to ISDN G.960–G.969
Optical fibre submarine cable systems G.970–G.979
Optical line systems for local and access networks G.980–G.989
Access networks G.990–G.999
QUALITY OF SERVICE AND PERFORMANCE – GENERIC AND USER-RELATED
ASPECTS
G.1000–G.1999
TRANSMISSION MEDIA CHARACTERISTICS G.6000–G.6999
DATA OVER TRANSPORT – GENERIC ASPECTS G.7000–G.7999
ETHERNET OVER TRANSPORT ASPECTS G.8000–G.8999
ACCESS NETWORKS G.9000–G.9999
For further details, please refer to the list of ITU-T Recommendations.
ITU-T Rec. G.984.3 (2004)/Amd.1 (07/2005) i
ITU-T Recommendation G.984.3
Gigabit-capable Passive Optical Networks (G-PON): Transmission
convergence layer specification
Amendment 1
Summary
This amendment includes various improvements to the G-PON TC-layer specification, including
editorial corrections that are aimed to improve readability and clarify points that were unclear or
contradictory in the original text. Additional improvements are aimed at focusing the implementation
of the GTC by reducing or eliminating some optional features that were included in the original
ITU-T Rec. G.984.3 (02/04).
Source
Amendment 1 to ITU-T Recommendation G.984.3 (2004) was approved on 14 July 2005 by ITU-T
Study Group 15 (2005-2008) under the ITU-T Recommendation A.8 procedure.
Keywords
G-PON, optical.
ii ITU-T Rec. G.984.3 (2004)/Amd.1 (07/2005)
FOREWORD
The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of
telecommunications. 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.
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 Resolution 1.
In some areas of information technology which fall within ITU-T's 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 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 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 Recommendation is required of any party.
INTELLECTUAL PROPERTY RIGHTS
ITU 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 claimed 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 not received notice of intellectual property,
protected by patents, which may be required to implement this Recommendation. However, implementors
are cautioned that this may not represent the latest information and are therefore strongly urged to consult the
TSB patent database.
ITU 2006
All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the
prior written permission of ITU.
ITU-T Rec. G.984.3 (2004)/Amd.1 (07/2005) iii
CONTENTS
Page
Amendment 1........................................................................................................................... 1
1) Clause 2 References..................................................................................................... 1
2) Clause 3 Definitions .................................................................................................... 1
3) Clause 4 Abbreviations................................................................................................ 1
4) New clause 5.4 Traffic control facilities in ONU for upstream .................................. 1
5) Clause 7.4.2 and elsewhere in the Recommendation ................................................... 2
6) Clause 8 GTC TC frame.............................................................................................. 2
7) Clause 8.1.3.6 BWmap fields ...................................................................................... 2
8) Clause 8.1.3.6.1 Allocation ID field............................................................................ 2
9) Clause 8.1.3.6.2 Flags field ......................................................................................... 3
10) Clause 8.1.3.6.3 StartTime field .................................................................................. 3
11) Clause 8.1.3.6.4 StopTime field .................................................................................. 3
12) Clause 8.1.4.1 ATM partition...................................................................................... 3
13) Clause 8.1.4.2 GEM partition...................................................................................... 3
14) Clause 8.2 Upstream frame structure........................................................................... 4
15) Clause 8.2.2.1 BIP field............................................................................................... 4
16) Clause 8.3.2 Mapping of GEM frames into GTC payload.......................................... 4
17) Clause 8.4 Dynamic bandwidth allocation signalling and configuration.................... 5
18) Clause 8.4.2.1 Definitions of the message................................................................... 5
19) Clause 9.2.1 Downstream message definition............................................................. 5
20) Clause 9.2.2 Upstream message definition.................................................................. 6
21) Clause 9.2.3.1 Upstream_Overhead message.............................................................. 6
22) Clause 9.2.3.2 Serial_Number_Mask message............................................................ 6
23) Clause 9.2.3.10 Assign_Alloc-ID message ................................................................. 6
24) Clause 9.2.3.19 Key_Switching_Time message.......................................................... 6
25) New clause 9.2.3.20 Extended_burst_length message ................................................ 7
26) Clause 10 Activation method....................................................................................... 7
27) Figure 11-1 ................................................................................................................... 24
28) Clause 11.1.1 Items detected at OLT........................................................................... 24
29) Clause 11.1.2 Items detected at ONU.......................................................................... 24
30) Clause 12.2 Encryption systems.................................................................................. 25
31) Clause 12.3 Key exchange and switch-over................................................................ 25
32) Clause 13.2.1.2 Shorter last codeword ........................................................................ 25
33) Clause 13.2.3.1 D/S FEC indication bit....................................................................... 25
34) Clause 13.3.1.1 Parity bytes ........................................................................................ 25
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