ITU-T G 9901-2014 Narrowband orthogonal frequency division multiplexing power line communication transceivers – Power spectral density specification (Study Group 15).pdf
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1、 International Telecommunication Union ITU-T G.9901TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (04/2014) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Access networks In premises networks Narrowband orthogonal frequency division multiplexing power line communication tran
2、sceivers Power spectral density specification Recommendation ITU-T G.9901 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEM
3、S 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 LINES G.400G.449 COORDINATION OF RADIOTELEPHONY AND L
4、INE 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 PERFORMANCE GENERIC AND USER-RELATED ASPECTS G.1000G.199
5、9 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 access networks G.9800G.9899 In premises networks G.9900
6、G.9999For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T G.9901 (04/2014) i Recommendation ITU-T G.9901 Narrowband orthogonal frequency division multiplexing power line communication transceivers Power spectral density specification Summary Recommendation ITU-T G.9901
7、 specifies the control parameters that determine spectral content, power spectral density (PSD) mask requirements, a set of tools to support the reduction of the transmit PSD, the means to measure this PSD for transmission over power line wiring, as well as the allowable total transmit power into a
8、specified termination impedance. It complements the system architecture, physical layer (PHY) and data link layer (DLL) specifications in Recommendations ITU-T G.9902 (G.hnem), ITU-T G.9903 (G3-PLC) and ITU-T G.9904 (PRIME). This Recommendation uses material from Recommendation ITU-T G.9955 includin
9、g Amendment 1; specifically material from the main body of the text, and Annexes A, B and E. This edition integrates material from the 2012 version of this Recommendation with its corresponding Amendment 1, plus the following additional modifications: removal of optional FCC-1.a and FCC-1.b bandplan
10、s in Annex B. clarifications on the use of frequency notching in Annex B. History Edition Recommendation Approval Study Group Unique ID*1.0 ITU-T G.9901 2012-11-20 15 11.1002/1000/11827 1.1 ITU-T G.9901 (2012) Amd. 1 2013-07-12 15 11.1002/1000/11895 2.0 ITU-T G.9901 2014-04-04 15 11.1002/1000/12089
11、_ *To access 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.9901 (04/2014) FOREWORD The International Telecommunication Union (ITU) is
12、 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 issuing
13、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.
14、 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 “Ad
15、ministration“ 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
16、 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 Recommenda
17、tion 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 clai
18、med 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 Recommenda
19、tion. 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 2014 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, with
20、out the prior written permission of ITU. Rec. ITU-T G.9901 (04/2014) iii Table of Contents Page 1 Scope 1 2 References. 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 2 5 Conventions 2 6 PSD related specifications relating to
21、 CENELEC bands (9-148.5 kHz) 2 Annex A PSD specifications for G.hnem transceivers . 3 A.1 Frequency band specifications . 3 A.2 Transmit PSD mask 5 A.3 Electric specification 6 Annex B PSD specifications for G3-PLC transceivers . 8 B.1 CENELEC band specifications 8 B.2 FCC band specifications . 8 B.
22、3 PSD mask specifications (notching) . 9 Annex C PSD specifications for PRIME transceivers 12 C.1 Introduction 12 C.2 PHY parameters 12 C.3 Preamble parameters 13 C.4 Electrical specification of the transmitter . 13 Rec. ITU-T G.9901 (04/2014) 1 Recommendation ITU-T G.9901 Narrowband orthogonal freq
23、uency division multiplexing power line communication transceivers Power spectral density specification 1 Scope This Recommendation specifies the control parameters that determine spectral content, power spectral density (PSD) mask requirements, a set of tools to support the reduction of the transmit
24、 PSD, the means to measure this PSD for the transmission over power line wiring, as well as the allowable total transmit power into a specified termination impedance. It complements the system architecture, physical layer (PHY), and data link layer (DLL) specifications in Recommendations ITU-T G.990
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