1、STD-CEPT TIR 32-01 E-ENGL 5771 W 232b4J44 0014583 108 TIR 12-01 E prige 1 Disbibubn: B Recommendation T/R 12-01 (Helsinki 1991) HARMONIZED RADIO FREQUENCY CHANNEL ARRANGEMENTS FOR ANALOGUE AND DIGITAL TERRESTRIAL FIXED SYSTEMS OPERATING IN THE BAND 37 GHz-39.5 GHz Recommendation proposed by the ”Fre
2、quency Management” Working Group TIWG 18 (FM) Text of the Recommendation adopted by the “European Radocomrnunications Committee (ERC): “The European Conference of Postal and Telecommnnications Administrations, considering that a) CEPT has a long-term objective to harmonise the use of frequencies thr
3、oughout Europe, b) CEPT should develop radio frequency channel arrangements in consultation with organisations developing standards for radio systems, in order to make the most effective use of the spectrum available, c) development of a radio frequency channel arrangement for the band 37 GHz-39.5 G
4、Hz requires urgent action, d) the propagation characteristics of the band 37 GHz-39.5 GHz are ideally suited to short-range medium and low grade analogue and digital fixed systems, e) the anticipated development in large-scale mobile networks will require large numbers of short-range links in the su
5、pporting infra-stmcture, f) a number of new or existing systems could operate saccessfully in the band 37 GHz-39.5 GHz thus relieving congestion and reducing the demand for specrum m the lower frequency bands, g) any radio frequency channel arrangement should incorporate a provision for the future i
6、ntroduction of improved equipment standards, h) in lower frequency bands, cross-polar antenna discrimination is a system-planning technique that offers greater frequency re-use, Edition of October 31,1991 STD.CEPT T/R 12-02 E-ENGL 3993 9 2326434 0014584 044 Tm 12-01 E Page 2 noting that 1. 2. 3. 4.
7、5. 6. Article 8 of the Radio Regulations allocates the band 37 GHz-37.5 GHz on an equal primary basis to the Fixed and Mobile services and the band 37.5 GHz-39.5 GHz to the fixed, Mobile and Fixed Satellite services (space to earth). Sharing criteria between Fixed and Mobile, and Pixed and Fixed Sat
8、ellite servicesmayberequired, if an allocation is made to new space services in the band 37.5 GHz-39.5 GHz at WARC 92 then urgent sharing studies will be required, in some CEPT countries there are existing fixed systems in the band 37 GHz-39.5 GHz which are not operating in accordance with the chann
9、el arrangement given in Annex A, m some CEPT countries the band 37 GHz-37.5 GHz is currently unavailable for the Fixed service, ment equipment standards support a 7 MHz raster. In the future it is expected that standards supporting a 3.5 MHz raster will be developed, cnrrently, insufficient propagat
10、ion data is available to permit planning based on a cross-polar operation, recommends that 1. 2. 3. 4. 5. 6. 7. CEP Administrations which have the band 37 GHz-39.5 GHz available for the Fixed service should follow the recommended radio kequency channel arrangements for the band 37 GHz-39.5 GHz given
11、 in Annex A. Until equipment standards have been developed based on a 3.5 MHz raster, the 7 MHz raster should be used. in order to obtain maximum spectrum utilisation, the centre gap and guard bands may be used for a variety of low capacity systems, provided that the limits for out-of-band emissions
12、 are met, the maximum power for terrestrial fixed systems operating in the band 37 GHz-39.5 GHz shall be limited to 50 dBW e.i.r.p., until reliable propagation data is available, antenna polarisation shall be limited to vertical, until sharing criteria between the Fixed and Fixed Satellite services
13、are developed the RR 2578 hits for the PFD of space to earth services shall apply, if, at WARC 92, new space services are allocated to the band 37.5 GHz-39.5 GHz, the RR 2578 limits for the PFD of space to earth services shall apply until parameters for the space services are defined sufficiently fo
14、r appropriate sharing criteria to be developed, Administrations may choose to allow existing systems to remain in the band 37 GHz-39.5 GHz until the year 2005, and may determine, on a national basis, the degree of protection given. International co- ordination between existing and new systems shall
15、be in accordance with Article 12 of the Radio Regulations.” Edition of October 31, 1991 STD-CEPT T/R 12-01 E-ENGL 3992 I 2326434 0014565 TBO T/R 12-01 E page 3 Annex A 1. 1.1. The radio fiequency channel arrangement for carrier spacings of 140 MHz, 56 MHZ, 28 MHz, 14 MHz, DERIVATION OF RADIO FREQUEN
16、CY CHANNELS 7 MHz and 3.5 MHz shall be derived as follows: Let fi be the reference fiequency of 38.248 MHZ; fn be the centre fiequency (h4Hz) of a radio-fiequency channel in the lower half of the band; fn be the centre frequency (MHz) of a radio-frequency channel in the upper half of the band; then
17、the fiequencies of individual channels are expressed by the foiiowing relationships: For systems with a carrier spacing of 140 MHz: Lower half of band:fn = (fi - 1260 + 140 n) MHz Uppa half of band:fn = (fi + 140 n) MHz where: n=l,2,3, 8 For systems with a carrier spacing of 56 MHz: Lower half of ba
18、nd:h = (fi - 1218 + 56 n) MHz Upper half of bandfn = (fr + 42 + 56 n) MHz wherc n=l,2.3 , 20 Por systems with a carrier spacing of 28 MHz: Lowerhalfofband:fn=(fi-l204+28n)MHz Upper half of bandfn = (fi + 56 + 28 n) MHz where: n=l,2,3 , 40 For systems with a carrier spacing of 14 MHz: Lower halfof ba
19、nd& = (fi - 1197 + 14 n) MHz Upper half of band:fn = (fi + 63 + 14 n) MHz where: n= 1, 2, 3, 80 For systems with a carrier spacing of 7 MHz: Lower half of band:fn = (fi - 1193.5 + 7 n) MHz Upper halfofbandfn = (fi + 66.5 + 7 n) MHz where: n= 1, 2, 3, 160 For systems With a carrier spacing of 3.5 MHz
20、: Lower half of band:h = (fi - 1191.75 + 7 n) MHz Upper half of bandfn = (fr + 68.25 + 3.5 n) MHz where: n= 1,2, 3, 320 Edition of October 31.1991 STD-CEPT T/R 12-01 E-ENGL 1991 23ZbliL4 001Y58b 917 D TIR 12-01 E Page 4 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I
21、II I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I l. Table 1. Channel Frequency Plan This is a fully homogeneous band plan, based on a 3.5 MHz raster, with channel edges aligned a) 140 MHz channels (7 MHz x 20) 8 channels b) 56 MHz channels (7 MHz x 8) 20 channels c) 28 MHz channels (7
22、MHzx4) 40 channels d) 14 MHz channels (7 MHz x 2) 80 channels e) 7 MHz channels 160 channels f) 3.5 MHz channels 320 channels t 37.058 MHz t 38,178 MHz Edition of October 31,1991 STD-CEPT TIR IS-O1 E-ENGL 1991 232b414 0014587 853 = T/R 1241 E PW 5 - 40 x 28 MHz channels - = - Table 2. Occupied spect
23、rum: 37 GHz to 39.5 GHz Band 3 e - P - 40 x 28 MHz channels Eez a) 140 MHz channels (7 MHzx 20) Guard band 58 MHz -I It Guard band 140 MHz 4 I+ Guard band 62 MHz -+I I+- b) 56 MHz channels (7 MHz x 8) 58 MHz 4 It 140 MHz -I I- 62 MHz -I l- 20 x 56 MHz channels 20 x 56 MHz channels I I l I c) 28 MHz
24、channels (7 MHz x 4) 58 MlJz -I It 140 MHz 4 I+- 62 MHz -I I- d) 14 MHz channels (7 MHz x 2) 58 MHz -I I- 140 MHz -I I- 62 MHz 4 I+ I I I I 1 80 x 14 MHz channels 80 x 14 MHz channels I I I L I I e) 7 MHz channels 58 MHz -4 I- 140 MHz -1 I- 62 MHz -I I- l I I I I 1 160 x 7 MHz channels I I L I I f)
25、3.5 MHz channels 58 MHz 4 I+- 140 MHz -4 I+ 62 MHz +I I- - (1) 320 x 3.5 MHz channels 1 _c_ I 320 x 3.5 MHz channels 1 l I 1 I I T 37,000 MHz t 38.178 MHz t 38.3 1 B MHz t 39,500 MHz Edition of October 31,1991 T/R 12-01 Harmonized radio frequency channel arrangements for analogue and digital terrestrial fixed systems operating in the band 37-39.5 GHz BEL CZE D DNK Adm I Imp1 I Remarks AUT I Yes Yes Yes Yes Yes IRL ISL LIE LVA NOR POL Yes Yes Yes Planned Yes Planned POR ROU S SUI Yes SVN Yes TUR Yes 2.9.1997. Regulation on radio licenses, art. 14 (0ff.Gaz. of SVN, No. 50/97) Yes Yes YeS
