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-
25、86 GHz 1 Basic 250 MHz channels in the 71-76 GHz and 81-86 GHz bands Let fr be the reference frequency of: 71 000 MHz for the band 71-76 GHz, 81 000 MHz for the band 81-86 GHz fn be the centre frequency of a radio-frequency channel in the band 71-76 GHz or 81-86 GHz band, n be the channel number in
26、each band, then the centre frequencies of individual channels with 250 MHz separation, are expressed by the following relationship: fn = fr + 250n MHz where: n = 1, 2, 3, ., 19 for each band The 19 basic 250 MHz channels derived as above maintain 125 MHz guardband (i.e. ZS = 250 MHz as defined in re
27、commendation ITU-R F.746) at each four band edges. 4 Rec. ITU-R F.2006 2 Pairing and aggregating basic channels in frequency bands 71-76/81-86 GHz The principle of using the 2 19 basic channels from within the bands 71-76 GHz and 81-86 GHz jointly in a single duplex FDD arrangement with 10 GHz duple
28、x separation is described in the Fig. 2. FIGURE 2 Combining the 250 MHz channels from 71-76/81-86 GHz bands into a single FDD arrangement with duplex separation of 10 GHz F.2006-02 .f 1 f 2 f 3 f 4 f 5 f 171 GHz 19x250 MHz channels 19x250 MHz channels81 GHz 86 GHzf 19f 2 f 3 f 4 f 5f 1976 GHzThe pri
29、nciple of using the 2 19 basic channels within a single band 71-76 GHz or 81-86 GHz with two separate FDD arrangement with duplex separation of 2.5 GHz is shown in Fig. 3. FIGURE 3 Combining the 250 MHz channels from single 71-76 GHz or 81-86 GHz band into separate FDD arrangement with duplex separa
30、tion of 2.5 GHz F.2006-03. 71 GHzor81 GHz250 MHz channels 250 MHz channelsCentre gap()Note 1Channel: 1 2 3 4 5 9 1 0 11 12 13 14 15 19 250 MHz channels 250 MHz channels76 GHzor86 GHzNote 1 Wider centre gap may be obtained with wider duplex separation (e.g. centre gap made by basicchannels 9, 10 and
31、11 resulting in 2.75 GHz duplex separation).f 1 f 2 f 3 f 4 f 5 f 1f 9 f 2 f 3 f 4 f 5f 19When wider channels are needed, e.g. for very high bitrate and high system gain applications (e.g. employing frequency shift keying modulation and/or gigabit/s or higher capacity), then a flexible number of con
32、secutive 250 MHz channels may be aggregated into FDD channels, as illustrated in Fig. 4, for duplex separation equal or more than 10 GHz, or in Fig. 5, for duplex separation of 2.5 GHz. Administrations that prefer to use of multiple sizes channels in predefined positions may refer to the arrangement
33、s in section 4 of this Annex. Rec. ITU-R F.2006 5 FIGURE 4 Example of aggregating multiple 250 MHz channels, possibly alongside with original 250 MHz wide channels within the joint 71-76 GHz and 81-86 GHz FDD arrangement F.2006-0471 GHz 86 GHzf 2 f 1 (1.25 GHz) fif 2fif 1 (1.25 GHz)76 GHz81 GHzFIGUR
34、E 5 Example of aggregating multiple 250 MHz channels, possibly alongside with original 250 MHz wide channels within the single band 71-76 or 81-86 GHz FDD arrangements F.2006-0571 GHzor81 GHz76 GHzor86 GHzf 2 f1 (1.25 GHz) fif 2fif 1 (1.25 GHz)Centre gapCentre gap3 Specific channel arrangements for
35、multiple size FDD/TDD aggregated channels in frequency bands 71-76/81-86 GHz A multiple sizes channel arrangement for these bands depends on the basic assumptions that an administration makes for the deployment, e.g.: TDD, FDD or their mixed use of the band; Paired FDD assignments with fixed duplex;
36、 FDD channels paired either in each single band or in cross-band pairing, or both contemporarily; For maximum flexibility all possible channel size of N 250 MHz are described in the arrangements. N = 1, 2, 9 resulting in channel size from 250 MHz to 2 250 MHz as described in Fig. 6 for the separate
37、arrangements in 71-76 GHz or 81-86 GHz sub-bands with duplex separation 2.5 GHz. N = 1, 2, 18 resulting in channel size from 250 MHz to 4 500 MHz as described in Fig. 7 for the joint arrangement in both 71-76 GHz and 81-86 GHz sub-bands with 10 GHz duplex separation. In this case channels from 250 M
38、Hz to 2 250 MHz maintain the same centre frequency of the corresponding channels in previous separate arrangements; this makes easier, when necessary, the contemporary coordination of systems with 2.5 GHz and 10 GHz duplex separation. 6 Rec. ITU-R F.2006 FIGURE 6 Channel positions for TDD and single
39、-band FDD applications (2.5 GHz fixed duplex for all channels) F.2006-06Channel numbering scheme (TDD and single-band FDD)Ch. size (MHz) Channel boundary(MHz). Single-band FDD: duplex spacing = 2 500 MHzLower Upper250 500 750 1 000 1 250 1 500 1 750 2 000 2 250123456711112223348910(unpaired)11(1)12(
40、2)14(4)15(5)16(6)17(7)18(8)13(3)19(9)9(4)8(3)7(2)6(1)4(1)5(2)6(3)4(2)3(1)3(1)11112(1)2(1)2(1)2(1)71 37571 62571 87572 12572 37572 62572 87573 12573 37573 62573 82574 12574 37574 62574 87575 12575 37575 62575 87581 37581 62581 87582 12582 37582 62582 87583 12583 37583 62583 87584 12584 37584 62584 87
41、585 12585 37585 62585 87571 125 81 125Unpaired(channel10/250 MHz)Unpaired(channel10/250 MHz)Pair/unp.(ch.19(9)/250 MHz)Pair/unp.(ch.19(9)/250 MHz)Pair/unp.(ch.19(9)/250 MHz)5 (unpaired)orlowersizepair/unpairnLegend:m (n)Paired (go) or unpaired “n“ channel in each bandPaired “n“ or unpaired “m“ chann
42、el in each bandUnpaired channel of same size or paire/unpaired channel(s) of lower size(s) in each bandPaired or unpaired channel 19(9) of basic 250 MHz pattern in each bandPaired or unpaired channel(s) of lower size(s) in each bandUnpaired channel 10 of basic 250 MHz pattern in each bandPaired/unpa
43、iredchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersize2(unpaired)orpaired/unpairedchannelsoflowersizeDS= 2 500 MHzRec. ITU-R F.
44、2006 7 FIGURE 7 Channel positions for TDD and joint cross-bands FDD applications (10 GHz fixed duplex for all channels) F.2006-07Channel numbering scheme (TDD and cross-bands FDD)Ch. size (MHz) ( ). MHz Cross-band: duplex spacing = 10 GHzLower Upper2501(1)2(2)4(4)5(5)8(8)18(18)3(3)71 37571 62571 875
45、72 12572 37572 62573 12573 62573 87574 12574 37574 62574 87575 12575 37575 62575 87581 37581 62581 87582 12582 37582 62582 87583 12583 37583 62583 87584 12584 37584 62584 87585 12585 37585 62585 87571 125 81 125Pair./unp.(ch. 10(10)/250 MHz)Legend:Paired channel (i.e. “n“ go/lower band and “n “ retu
46、rn/upper band) or unpaired channel (i.e. “n“ in each band)Paired/unpaired channelsoflowersizePaired/unpairedchannelsoflowersizeDS=10GHz500 750 1 000 1 250 1 500 1 750 2 000 2 250 2 500 2 750 3 000 3 250 3 500 3 750 4 000 4 250 4 500Channel boundary72 87573 3756(6)7(7)9(9)19(19)17(17)16(16)15(15)13(1
47、3)14(14)12(12)11(11)10(10)1(1)2(2)3(3)4(4)5(5)6(6)7(7)8(8)9(9)4(4)3(3)3(3)4(4)5(5)6(6)2(2)2(2)2(2)2(2)2(2)2(2)2(2)3(3)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)1(1)n (n)Channels 10(10) and 19(19) of basic 250 MHz pattern: paired (i.e. “10“ and/or “19“ go/lower band, “10 “ and/or “1
48、9 “ return/upper band) or unpaired (i.e. “10“ and/or “19“ in each band)Lower size(s) channel(s), paired (i.e. “n“ go/lower band and “n “ return/upper band) or unpaired (i.e. “n“ in each band)Pair./unp.(ch. 10(10)/250 MHz)Pair./unp.(ch. 19(19)/250 MHz)Pair./unp.(ch. 19(19)/250 MHz)Pair./unp.(ch. 19(1
49、9)/250 MHz)Pair./unp.(ch. 19(19)/250 MHz)Paired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpairedchannelsoflowersizePaired/unpaired channelsoflowersize
