Report ITU-R BT.2338-0 (03/2015)
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Report ITU-R BT.2338-0 (03/2015) Services ancillary to broadcasting/services ancillary to programme making spectrum use in Region 1 and the implication of a co-primary allocation for the mobile service in the frequency band 694-790 MHz BT Series Broadcasting service (television) ii Rep. ITU-R BT.2338-0 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 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 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 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. Series of ITU-R Reports (Also available online at http://www.itu.int/publ/R-REP/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, 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 SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management Note: This ITU-R Report was approved in English by the Study Group under 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. Rep. ITU-R BT.2338-0 1 REPORT ITU-R BT.2338-0 Services ancillary to broadcasting/services ancillary to programme making spectrum use in Region 1 and the implication of a co-primary allocation for the mobile service in the frequency band 694-790 MHz1 (2014) TABLE OF CONTENTS Page 1 Scope .............................................................................................................................. 5 2 General overview ............................................................................................................ 5 2.1 Background ......................................................................................................... 5 2.2 Quality and reliability of SAB/SAP in relation to spectrum demand ................. 7 2.3 Future developments ........................................................................................... 7 3 Technical aspects of audio SAB/SAP ............................................................................ 7 3.1 Descriptions: Analogue, digital and cognitive audio SAB/SAP ........................ 7 3.2 Operating conditions for audio links including wireless microphones and in ear monitor systems ............................................................................................ 11 3.3 Control links ....................................................................................................... 14 4 Current use of SAB/SAP equipment and spectrum requirements .................................. 14 4.1 Events requiring support of various SAB/SAP devices ..................................... 15 4.2 SAB/SAP usage in the 700 MHz band between 2007 and 2013 in Germany .... 17 5 Further developments and future requirements for audio SAB/SAP ............................. 19 5.1 Considerations on future perspectives for audio SAB/SAP ............................... 19 5.2 Future challenges ................................................................................................ 19 5.3 Future technologies ............................................................................................. 20 6 Future spectrum for audio SAB/SAP ............................................................................. 21 6.1 Use of IMT duplex gaps and guard bands .......................................................... 21 6.2 Other frequency bands below 2 GHz .................................................................. 21 7 Conclusion ...................................................................................................................... 21 1 This Report was approved jointly by Radiocommunication Study Groups 5 and 6, and any future revision should also be undertaken jointly. 2 Rep. ITU-R BT.2338-0 Page Annex 1 – Glossary of Terms .................................................................................................. 23 Annex 2 – Technical SAB/SAP characteristics 25 2.1 Parameters for wireless microphones, in ear monitors (IEM) and audio links .. 25 2.2 Technical aspects for transmitters ...................................................................... 26 2.3 Technical aspects for receivers ........................................................................... 29 2.4 Propagation issues .............................................................................................. 30 2.5 Interference in to the audio receiver unit of a SAB/SAP system ....................... 33 2.6 A method to measure the radio microphone receiver C/I ................................... 36 2.7 Intermodulation, reverse intermodulation, WSD and SAB/SAP ........................ 38 2.8 Benefit of digital audio SAB/SAP: Possibility to adapt the characteristics to application requirements ..................................................................................... 46 2.9 Discussion and summary of the properties of the new technologies .................. 47 Annex 3 – Study on the influence of OoB emission of an IMT duplex gap ........................... 55 Annex 4 – SAB/SAP spectrum requirements .......................................................................... 57 4.1 General demand considerations .......................................................................... 57 4.2 Demand for different kinds of broadcasting applications ................................... 58 4.3 Demand for places of worship ............................................................................ 60 4.4 Demand for film and advertisement production ................................................. 61 4.5 Demand for recording production ...................................................................... 61 4.6 Demand for corporate events .............................................................................. 61 4.7 Demand for social use ........................................................................................ 62 4.8 Demand for conferences/political events ............................................................ 62 4.9 Snapshots of daily SAB/SAP use ....................................................................... 63 Annex 5 – Information on the usage of the 700 MHz band by SAB/SAP in Region 1 .......... 73 5.1 Introduction ......................................................................................................... 73 5.2 Set up of measurements ...................................................................................... 73 5.3 Coordination of SAB/SAP frequencies .............................................................. 74 5.4 Explanation of presented diagrams ..................................................................... 74 5.5 Measurement results ........................................................................................... 74 5.6 Summary ............................................................................................................. 81 5.7 Conclusion .......................................................................................................... 82 Rep. ITU-R BT.2338-0 3 Page Annex 6 – SAB/SAP spectrum requirements in the 470-790 MHz band at the Eurovision Song Contest 2011 .......................................................................................................... 82 6.1 Introduction ......................................................................................................... 82 6.2 Requirements at the ESC 2011 ........................................................................... 83 6.3 Issues with frequency coordination .................................................................... 86 6.4 Actual spectrum use at ESC ............................................................................... 88 6.5 Alternative coordination ..................................................................................... 91 6.6 Other events ........................................................................................................ 93 6.7 Conclusion .......................................................................................................... 94 6.8 List of References ............................................................................................... 95 4 Rep. ITU-R BT.2338-0 Page 8 Conclusion ...................................................................................................................... 20