ITU-R F 2006-2012 Radio-frequency channel and block arrangements for fixed wireless systems operating in the 71-76 and 81-86 GHz bands《71-76和81-86 GHz频段范围内固定无线系统的射频信道和区配置》.pdf
《ITU-R F 2006-2012 Radio-frequency channel and block arrangements for fixed wireless systems operating in the 71-76 and 81-86 GHz bands《71-76和81-86 GHz频段范围内固定无线系统的射频信道和区配置》.pdf》由会员分享,可在线阅读,更多相关《ITU-R F 2006-2012 Radio-frequency channel and block arrangements for fixed wireless systems operating in the 71-76 and 81-86 GHz bands《71-76和81-86 GHz频段范围内固定无线系统的射频信道和区配置》.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、 Recommendation ITU-R F.2006(03/2012)Radio-frequency channel and block arrangements for fixed wireless systems operating in the 71-76 and 81-86 GHz bandsF SeriesFixed serviceii Rec. ITU-R F.2006 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and ec
2、onomical 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
3、by World 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
4、used for 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.
5、Series 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, radiode
6、termination, 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
7、Satellite 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, 2012 ITU 2012 All rights reserved. No part of this p
8、ublication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R F.2006 1 RECOMMENDATION ITU-R F.2006 Radio-frequency channel and block arrangements for fixed wireless systems operating in the 71-76 and 81-86 GHz bands (2012) Scope This Recommendation provides rad
9、io-frequency channel and block arrangements for fixed wireless systems (FWS) operating in the 71-76/81-86 GHz range, which may be used for broadband applications and other high-speed networks. The preferred arrangements are based on common homogeneous pattern with elementary slots of 125 MHz. The pr
10、eferred radio-frequency block arrangements are based on 5 GHz sub-band or block possibly subdivided to form smaller blocks. The preferred channel arrangement provides flexible identification of channel sizes from 250 MHz to 4 500 MHz and duplex frequency either of 2.5 GHz (single sub-band, 71-76 GHz
11、 or 81-86 GHz, arrangement) or 10 GHz (joint sub-bands, 71-76 GHz and 81-86 GHz together, arrangements). The ITU Radiocommunication Assembly, considering a) that there is a particular need for fixed wireless systems (FWS) for large data capacity transport, e.g. for uncompressed high-definition telev
12、ision (HDTV) signal transmission or for mobile networks applications, the deployment of which is expected to rapidly grow; b) that the frequency bands 71-76 GHz and 81-86 GHz are allocated to the fixed service; c) that the propagation characteristics in these bands are ideally suited for use of shor
13、t-range high capacity digital radio links in high-density networks; d) that in these frequency bands high directivity antennas are achievable even with small size antennas, increasing the density of equipment and further reducing risk of interference with same and other services; e) that several ser
14、vices with various transmission signal characteristics and capacities may be in simultaneous use in this frequency band; f) that the applications in this frequency band may require different channel bandwidths; g) that, in some cases, a flexible sub-band or block arrangement, can accommodate various
15、 FWS technologies, whilst remaining consistent with good spectrum management principles, including provision for inter-systems/services operation and overall spectrum efficiency; h) that, when link-by-link frequency coordination is applied, the definition of radio-frequency channel arrangements is p
16、referable; j) that careful frequency planning permits accommodation of frequency division duplex (FDD) and time division duplex (TDD) applications; k) that different applications licensed by various administrations may require different radio-frequency channel arrangements; l) that, in some countrie
17、s, only limited portions of the two bands may be available for civil applications; m) that some countries may wish to or already have made these bands available through a flexible simplified approach without any specific channel plan, 2 Rec. ITU-R F.2006 noting a) that Recommendation ITU-R F.1519 pr
18、ovides guidance on frequency arrangements based on frequency blocks for systems in the fixed service; b) that Report ITU-R F.2107 provides characteristics and applications of fixed wireless systems operating in frequency ranges between 57 GHz and 134 GHz, recommends 1 that administrations wishing to
19、 implement a radio-frequency channel or block arrangement for the 71-76 GHz and 81-86 GHz bands should consider the following homogeneous pattern of 125 MHz slots: fn = 71.0625 + 0.125 (n 1) GHz where: fn : centre frequency of the n-th slot n = 1 to 40 for the band 71-76 GHz 81 to 120 for the band 8
20、1-86 GHz; 2 that administrations wishing to use specific radio-frequency channels or blocks should have size multiple of 250 MHz and should be composed by aggregating 2 or a higher even number of frequency slots from the homogeneous pattern; 3 that administrations wishing to assign sub-bands or freq
21、uency blocks for FWS in the frequency bands 71-76/81-86 GHz, should consider the sub-bands or block arrangements presented in Annex 1; 4 that administrations should consider the adoption of carrier centre frequencies, within the preferred frequency blocks, from the channel slots of 250 MHz, as deriv
22、ed in recommends 2; 5 that administrations wishing to assign pre-defined channels of 250 MHz, or multiples thereof, either paired or unpaired, should consider the flexible channel arrangements illustrated in Annex 2. Rec. ITU-R F.2006 3 Annex 1 Radio-frequency sub-band or block arrangements in the b
23、and 71-76/81-86 GHz This arrangement is based on the use of the basic 5 GHz sub-bands, which can be subdivided to form smaller paired blocks, as shown in the examples of Fig. 1. According to the needs, other block subdivisions are possible, including blocks of different size. FIGURE 1 Examples of fr
24、equency block arrangement for the ranges 71-76/81-86 GHz F.2006-0171 GHz 76 GHz 81 GHz 86 GHz5.0 GHz5.0 GHz2.5 GHz 2.5 GHz 2.5 GHz 2.5 GHz1.25GHz1.25GHz1.25GHz1.25GHz1.25GHz1.25GHz1.25GHz1GHz1GHz1GHz1GHz1GHz1GHz1GHz1GHz1GHz1GHz1.25GHzAnnex 2 Radio-frequency channel arrangements in the band 71-76/81-
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