ITU-R M 1450-5-2014 Characteristics of broadband radio local area networks《宽带无线局域网的特点》.pdf
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1、 Recommendation ITU-R M.1450-5(02/2014)Characteristics of broadband radio local area networksM SeriesMobile, radiodetermination, amateurand related satellite servicesii Rec. ITU-R M.1450-5 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economic
2、al use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by Wor
3、ld and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used f
4、or the submission of patent statements and licensing declarations by patent holders are available from http:/www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series
5、 of ITU-R Recommendations (Also available online at http:/www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermin
6、ation, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management SNG Satell
7、ite news gathering TF Time signals and frequency standards emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2014 ITU 2014 All rights reserved. No part of this publica
8、tion may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R M.1450-5 1 RECOMMENDATION ITU-R M.1450-5 Characteristics of broadband radio local area networks (Questions ITU-R 212/5 and ITU-R 238/5) (2000-2002-2003-2008-2010-2014) Scope This Recommendation provides th
9、e characteristics of broadband radio local area networks (RLANs) including technical parameters, and information on RLAN standards and operational characteristics. Basic characteristics of broadband RLANs and general guidance for their system design are also addressed. The ITU Radiocommunication Ass
10、embly, considering a) that broadband radio local area networks (RLANs) are widely used for fixed, semi-fixed (transportable) and portable computer equipment for a variety of broadband applications; b) that broadband RLANs are used for fixed, nomadic and mobile wireless access applications; c) that b
11、roadband RLAN standards currently being developed are compatible with current wired LAN standards; d) that it is desirable to establish guidelines for broadband RLANs in various frequency bands; e) that broadband RLANs should be implemented with careful consideration to compatibility with other radi
12、o applications, noting a) that Report ITU-R F.2086 provides technical and operational characteristics and applications of broadband wireless access systems (WAS) in the fixed service; b) that other information on broadband WAS, including RLANs, is contained in Recommendations ITU-R F.1763, ITU-R M.1
13、652, ITU-R M.1739 and ITU-R M.1801, recommends 1 that the broadband RLAN standards in Table 2 should be used (see also Notes 1, 2 and 3); 2 that Annex 2 should be used for general information on RLANs, including their basic characteristics; 3 that the following Notes should be regarded as part of th
14、is Recommendation. NOTE 1 Acronyms and terminology used in this Recommendation are given in Table 1. NOTE 2 Annex 1 provides detailed information on how to obtain complete standards described in Table 2. NOTE 3 This Recommendation does not exclude the implementation of other RLAN systems. 2 Rec. ITU
15、-R M.1450-5 TABLE 1 Acronyms and terms used in this Recommendation Access method Scheme used to provide multiple access to a channel AP Access point ARIB Association of Radio Industries and Businesses ATM Asynchronous transfer mode Bit rate The rate of transfer of a bit of information from one netwo
16、rk device to another BPSK Binary phase-shift keying BRAN Broadband Radio Access Networks (A technical committee of ETSI) Channelization Bandwidth of each channel and number of channels that can be contained in the RF bandwidth allocation Channel Indexing The frequency difference between adjacent cha
17、nnel centre frequencies CSMA/CA Carrier sensing multiple access with collision avoidance DAA Detect and avoid DFS Dynamic frequency selection DSSS Direct sequence spread spectrum e.i.r.p. Equivalent isotropically radiated power ETSI European Telecommunications Standards Institute Frequency band Nomi
18、nal operating spectrum of operation FHSS Frequency hopping spread spectrum HIPERLAN2 High performance radio LAN 2 HiSWANa High speed wireless access network type a HSWA High speed wireless access IEEE Institute of Electrical and Electronics Engineers IETF Internet Engineering Task Force LAN Local ar
19、ea network LBT Listen before talk MU Medium utilisation MMAC Multimedia mobile access communication Modulation The method used to put information onto an RF carrier MIMO Multiple input multiple output OFDM Orthogonal frequency division multiplexing PSD Power spectral density PSTN Public switched tel
20、ephone network QAM Quadrature amplitude modulation QoS Quality of Service QPSK Quaternary phase-shift keying RF Radio frequency Rec. ITU-R M.1450-5 3 RLAN Radio local area network SSMA Spread spectrum multiple access Tx power Transmitter power RF power in Watts produced by the transmitter TCP Transm
21、ission control protocol TDD Time division duplex TDMA Time-division multiple access TPC Transmit power control WATM Wireless asynchronous transfer mode 4 Rec. ITU-R M.1450-5 TABLE 2 Characteristics including technical parameters associated with broadband RLAN standards Characteristics IEEE Std 802.1
22、1-2012(Clause 17, commonly known as 802.11b) IEEE Std 802.11-2012 (Clause 18, commonly known as 802.11a(1) IEEE Std 802.11-2012 (Clause 19, commonly known as 802.11g(1) IEEE Std 802.11-2012 (Clause 18, Annex D and Annex E, commonly known as 802.11j) IEEE Std 802.11-2012 (Clause 20, commonly known as
23、 802.11n) IEEE Std 802.11ad-2012ETSI EN 300 328 ETSI EN 301 893ARIB HiSWANa, (1)ETSI EN 302 567 Access method CSMA/ CA, SSMA CSMA/CA Scheduled, CSMA/CA TDMA/TDD Modulation CCK (8 complex chip spreading) 64-QAM-OFDM 16-QAM-OFDM QPSK-OFDM BPSK-OFDM 52 subcarriers (see Fig. 1) DSSS/CCK OFDM PBCC DSSS-O
24、FDM 64-QAM-OFDM 16-QAM-OFDM QPSK-OFDM BPSK-OFDM 52 subcarriers (see Fig. 1) 64-QAM-OFDM16-QAM-OFDMQPSK-OFDM BPSK-OFDM 56 subcarriers in 20 MHz 114 subcarriers in 40 MHz MIMO, 1-4 spatial streams 256-QAM-OFDM 64-QAM-OFDM 16-QAM-OFDM QPSK-OFDM BPSK-OFDM 56 subcarriers in 20 MHz 114 subcarriers in 40 M
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