1、 Recommendation ITU-R M.1827-1 (01/2015) Guideline on technical and operational requirements for stations of the aeronautical mobile (R) service limited to surface application at airports in the frequency band 5 091-5 150 MHz M Series Mobile, radiodetermination, amateur and related satellite service
2、s ii Rec. ITU-R M.1827-1 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on t
3、he basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy
4、 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 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 fo
5、r 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 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 pl
6、ay-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications a
7、nd meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management SNG 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
8、 the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2015 ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without written permission of ITU. Rec. ITU-R M.1827-1 1 RECOMMENDATION ITU-R M.1827-1 Guideline on technical and o
9、perational requirements for stations of the aeronautical mobile (R) service limited to surface application at airports in the frequency band 5 091-5 150 MHz (2007-2015) Scope This Recommendation provides technical and operational requirements for stations of the aeronautical mobile (route) service (
10、AM(R)S) limited to surface applications at airports in the frequency band 5 091-5 150 MHz that should be used by administrations as a technical guideline for establishing conformance requirements for stations for worldwide use. Keywords AM(R)S, FSS, airport, conformance. Abbreviations/Glossary AM(R)
11、S Aeronautical mobile (route) service ARNS Aeronautical radionavigation service FSS Fixed satellite service The ITU Radiocommunication Assembly, considering a) that the aeronautical stations will operate on a national, regional and international basis around the world; b) that circulation of aeronau
12、tical stations is usually a subject of a number of national and international rules and regulations including satisfactory conformance to a mutually agreed technical standard and operational requirements of the International Civil Aviation Organisation; c) that there is a need for identifying the te
13、chnical and operational requirements for the conformance testing of the aeronautical stations; d) that the identification of technical and operational requirements for aeronautical stations would provide a common technical basis for facilitating conformance testing of aeronautical stations by variou
14、s national, regional and international authorities and the development of mutual recognition arrangements for conformance of aeronautical stations; e) that the technical and operational requirements need to achieve an acceptable balance between radiocommunication equipment complexity and the need fo
15、r effective use of the radio-frequency spectrum, considering also a) that there is a requirement to fully protect all primary services in the band 5 091-5 150 MHz; b) that results of the studies conducted in accordance with Resolution 414 (Rev.WRC-03) showed the feasibility of using the frequency ba
16、nd 5 091-5 150 MHz by the AM(R)S limited to surface application at airports on a primary basis under certain conditions; 2 Rec. ITU-R M.1827-1 c) that the identification by ITU-R of technical and operational requirements for aeronautical stations operating in the frequency band 5 091-5 150 MHz shoul
17、d prevent unacceptable interference to other services; d) that technical and operational characteristics should be continuously and accurately measurable and controllable, recognizing a) that the frequency band 5 000-5 250 MHz is allocated to the aeronautical radionavigation service (ARNS) on a prim
18、ary basis; b) that the frequency band 5 030-5 150 MHz is to be used for the operation of the international standard microwave landing system for precision approach and landing. The frequency band 5 091-5 150 MHz is also used in the FSS for feeder links for non-geostationary mobile-satellite service
19、systems. The requirements of the international standard microwave landing system shall take precedence over other uses of the band 5 030-5 091 MHz in accordance with No. 5.444 of the Radio Regulations, recommends 1 that the technical and operational requirements for stations of AM(R)S limited to sur
20、face application at airports in the frequency band 5 091-5 150 MHz given in Annex 1 should be used by administrations as a guideline for ensuring compatibility with the fixed satellite service (FSS). 2 the following Note is considered as part of this Recommendation. NOTE Due to the fact that other l
21、imits may also be acceptable and that all essential requirements are not covered by this Recommendation, further study is required, in particular with respect to the flexible apportionment of Ts/Ts approach used in this Recommendation Annex 1 Essential requirements related to compatibility with fixe
22、d satellite service networks in the frequency band 5 091-5 150 MHz For the analyses that follow, Table 1 summarizes the assumed FSS receiver characteristics. TABLE 1 Parameter values used in satellite interference calculations Parameter Units HIBLEO-4 FL Satellite receiver noise temperature T K 550
23、Antenna effective area at 5 120 MHz dB(m2) 35.6 Polarization discrimination Lp dB 1 Feed loss Lfeed dB 2.9 Satellite receiver bandwidth B MHz 1.23 Satellite receive antenna gain Gr dBi 4 Rec. ITU-R M.1827-1 3 NOTE The compliance with the pfds defined below would be obtained under free-space propagat
24、ion conditions. Requirements on the aeronautical mobile (route) service The requirements that follow represent technical guidelines to be used by administrations for establishing conformance requirements for stations for worldwide use. Other limits may also be acceptable, however further study is re
25、quired. The pfd defined in this section is based on ensuring that the increase in noise temperature of the FSS satellite due to operation in the frequency band 5 091-5 150 MHz of the AM(R)S (i.e. (Ts/Ts)AM(R)S) does not exceed the greater of the following two values: 1) 2% 2) 5% (Ts/Ts)ARNS where: (
26、Ts/Ts)ARNS: is the increase in noise temperature due to the ARNS in the same band. Three examples of this calculation are provided below. The first assumes that the (Ts/Ts)ARNS is 3%. The second assumes that no ARNS is present in the band. The third assumes that (Ts/Ts)ARNS is 3%. The methodology as
27、sumes 2502 co-channel AM(R)S transmitters operating concurrently within the field of view of the FSS satellite. Example 1: (Ts/Ts)ARNS = 3% In this case, 5% (Ts/Ts)ARNS equals 2%, hence, (Ts/Ts)AM(R) S = 2%, i.e. 17 dB. Assuming the Table 1 characteristics for the FSS, the maximum aggregate interfer
28、ence level tolerable at the receiver input is IAgg-Rec: M H z )23.1/d B ( W3.157dB17 K TBI R e cA g g where: K: Boltzmanns constant (1.38 1023 J/K) T: receiver noise temperature (K) B: receiver bandwidth (Hz). Therefore at the satellite receiver antenna input the maximum pfd level produced by one AM
29、(R)S transmitter is: )M H z23.1m/(d B W77.1456.3597.2319.243.1574l o g10)250(l o g102210 PF e e dR e cA g gM a x LLGrIp f dwhere: Gr: FSS receiver antenna gain 250: maximum number of AM(R)S stations emitting simultaneously in the FSS receiver bandwidth. Example 2: (Ts/Ts)ARNS = 0 In this case, 5% (T
30、s/Ts)ARNS equals 5%, which is greater than 2%, Hence, (Ts/Ts)AM(R)S = 5%, i.e. 13 dB. 4 Rec. ITU-R M.1827-1 Hence: M H z )23.1/d B ( W3.153dB13 K TBI R e cA g g Therefore at the satellite receiver antenna input the maximum pfd level produced by one AMRS transmitter is: )M H z23.1m/(d B W77.1416.3597.2319.243.1534l o g10)250(l o g102210 PF e e dR e cA g gM a x LLGrIp f dExample 3: (Ts/Ts)ARNS 3% In this case, 5% (Ts/Ts)ARNS is smaller than 2%, Hence, (Ts/Ts)AM(R)S = 2%, i.e. 17 dB, as in Example 1, and the same pfdMax value is obtained as in Example 1.
