1、 Recommendation ITU-R M.2085-0 (09/2015) Technical conditions for the use of wireless avionics intra-communication systems operating in the aeronautical mobile (R) service in the frequency band 4 200-4 400 MHz M Series Mobile, radiodetermination, amateur and related satellite services ii Rec. ITU-R
2、M.2085-0 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 the basis of whic
3、h 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 on IPR is descr
4、ibed 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 for Implementation
5、 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 play-out; film for
6、 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 and meteorology S
7、F 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 the procedure d
8、etailed 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.2085-0 1 RECOMMENDATION ITU-R M.2085-01 Technical conditions for the use of wireles
9、s avionics intra-communication systems operating in the aeronautical mobile (R) service in the frequency band 4 200-4 400 MHz (2015) Scope This Recommendation provides technical conditions for the use of the aeronautical mobile (R) service reserved exclusively for wireless avionics intra-communicati
10、on (WAIC) systems in the frequency band 4 200-4 400 MHz. Keywords Aeronautical, radionavigation Abbreviations/Glossary WAIC Wireless avionics intra-communication The ITU Radiocommunication Assembly, considering a) that the frequency band 4 200-4 400 MHz is also allocated to the aeronautical radionav
11、igation service on a primary basis, reserved exclusively for radio altimeters installed on board aircraft; b) that Recommendation ITU-R M.2067-0 provides technical characteristics and protection criteria for wireless avionics intra-communication (WAIC) systems which indicates that only one outside W
12、AIC system transmitter is active in the same frequency range at the same time on a single aircraft; c) that Recommendation ITU-R M.2059-0 provides operational and technical characteristics and protection criteria of radio altimeters; d) that WAIC systems are operated in a manner that ensures the saf
13、e operation of radio altimeters; e) that Report ITU-R M.2283 provides descriptions and spectrum requirements of WAIC systems; f) that WAIC systems operating inside an aircraft receive the benefits of fuselage attenuation to facilitate sharing with other services; g) that WAIC systems operate during
14、all phases of flight, including on the ground, recognizing a) that Annex 10 to the Convention on International Civil Aviation contains standards and recommended practices for aeronautical radionavigation and radiocommunication systems used by international civil aviation; 1 The Director of the Radio
15、communication Bureau is requested to bring this Recommendation to the attention of the International Civil Aviation Organization (ICAO). 2 Rec. ITU-R M.2085-0 b) that compatibility studies in the frequency band 4 200-4 400 MHz between WAIC systems and systems identified in considering a) are contain
16、ed in Report ITU-R M.2319, recommends that, in order to protect radio altimeters, the maximum equivalent isotropically radiated power density generated by outside WAIC systems of a single aircraft, as referenced in considering b), should not exceed: 5 dBm/MHz for systems using high data rate; and 6 dBm/MHz where both high and low data rates are used. _
