DOCSLIB.ORG

THE PROTECTION REQUIREMENTS of RADIOCOMMUNICATIONS SYSTEMS BELOW 10.6 Ghz from GENERIC UWB APPLICATIONS

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
THE PROTECTION REQUIREMENTS of RADIOCOMMUNICATIONS SYSTEMS BELOW 10.6 Ghz from GENERIC UWB APPLICATIONS ECC REPORT 64 Page 1 Electronic Communications Committee (ECC) within the European Conference of Postal and Telecommunications Administrations (CEPT) THE PROTECTION REQUIREMENTS OF RADIOCOMMUNICATIONS SYSTEMS BELOW 10.6 GHz FROM GENERIC UWB APPLICATIONS Helsinki, February 2005 ECC REPORT 64 Page 2 EXECUTIVE SUMMARY This ECC Report considers the protection requirements of radiocommunications services below 10.6 GHz from Generic Ultra Wide Band (UWB) Applications. The study is based mostly on theoretical analysis. The conclusions are based on currently available data on UWB technical characteristics and propagation models, bearing in mind that no specific mitigation techniques for UWB applications were taken into account as they were still under development at the time of writing this report. It should be noted that not all frequency bands which are allocated to the radiocommunications services considered in this report were investigated. The summary of the results of the compatibility studies are given in section 7. The required maximum generic UWB PSD values to protect the existing radiocommunications services are demonstrated to be more stringent than the values given in the FCC mask. To reach a sufficient protection from UWB systems, especially for pulsed UWB applications, it is necessary to set an average power limit and a peak power limit (alternatively to setting a peak limit, it is possible to limit the Pulse Repetition Frequency (PRF) to a certain minimum value). The limits in summary table are valid for the assumption of Additive White Gaussian Noise (AWGN)-like interference effects, which is achievable with the following conditions: • Scenarios with a sufficient number of interferer (>100); • Pulse-based UWB emissions with a PRF-range of PRF>VictimBandwidth, and • MB-OFDM (without Frequency Hopping). The results show that: • The majority of the considered radiocommunications services require up to 20-30 dB more stringent Generic UWB PSD limits than defined in the FCC masks, indoor as well as outdoor. Only a few EESS applications are sufficiently protected by FCC mask, whereas some RAS bands require 50-80 dB more stringent limits; • The consolidated limits shown in Fig. 15 indicate that the allowed Generic UWB PSD limit increases with the frequency. The difference between PSD limit at 10 GHz and that at 200 MHz is about 20 dB; • If the victim radiocommunications service is operated in an outdoor environment only, as is the case for e.g. FS, FSS, RAS, EESS etc, then the increase of noise due to the aggregate UWB interference determines the generic UWB PSD limit. In addition, if the victim radiocommunications service is (also) operated in the indoor environment, e.g. DVB-T, IMT-2000, RLAN, etc, then the closest UWB interferer becomes the determining interference factor due to small spatial separation (small path loss). It can also be observed that for radiocommunications services using narrow band receivers with higher sensitivity more protection is required. ECC REPORT 64 Page 3 INDEX TABLE 1 INTRODUCTION...................................................................................................................................................5 2 ULTRA-WIDEBAND APPLICATIONS .............................................................................................................5 2.1 UWB OPERATING FREQUENCY BANDS...............................................................................................................6 2.2 GEOGRAPHIC POSITIONING AND DISTRIBUTION OF UWB DEVICES ...................................................................7 2.2.1 Random distribution..................................................................................................................................7 2.2.2 Deployment hot-spots................................................................................................................................7 2.2.3 Minimum UWB device separation distance from a potential victim receiver .........................................7 3 TECHNICAL CHARACTERISTICS OF UWB SYSTEMS .............................................................................7 4 POTENTIAL VICTIM RADIOCOMMUNICATIONS SERVICES AND SYSTEMS..................................8 4.1 RADIOCOMMUNICATIONS SERVICES AND SYSTEMS CONSIDERED IN THIS REPORT ............................................8 4.2 POSSIBLE IMPACT OF UWB SYSTEMS ON RADIOCOMMUNICATIONS SERVICES .................................................8 4.3 DISTURBANCE EFFECTS OF UWB ......................................................................................................................8 4.4 GENERIC POWER SPECTRAL DENSITY (R.M.S.) LIMITS FOR A SINGLE UWB INTERFERER ..................................9 4.4.1 Case of victim receiver close to UWB emission .......................................................................................9 4.4.2 Case of fixed victim receiver with high antenna gain placed near the location of UWB emission ......12 5 VICTIM RECEIVER CHARACTERISTICS...................................................................................................12 5.1 RECEIVER MODELLING.....................................................................................................................................12 5.1.1 Receiver susceptibility.............................................................................................................................12 5.1.2 Antennas ..................................................................................................................................................12 5.1.3 Receiver characteristics..........................................................................................................................13 5.2 SHARING CRITERIA AND INTERFERENCE OBJECTIVES ......................................................................................13 6 INTERFERENCE SCENARIOS FOR CO-EXISTENCE STUDIES.............................................................13 6.1 PROPAGATION PREDICTION METHODS FOR UWB CO-EXISTENCE STUDIES .....................................................13 6.1.1 Background .............................................................................................................................................13 6.1.2 Radio Channel Modeling ........................................................................................................................14 6.1.3 Propagation models for assessing compatibility of UWB devices with conventional (relatively narrow band) receivers ........................................................................................................................................................15 6.1.4 Propagation models to assess co-existence of different UWB devices or to determine UWB link budget for general compatibility studies.................................................................................................................16 6.1.5 UWB propagation models for compatibility studies between indoor UWB devices and space services 19 6.2 UWB SPECTRUM MASKS .................................................................................................................................19 6.2.1 The -41.3 dBm/MHz flat limit .................................................................................................................19 6.2.2 FCC UWB emission limits ......................................................................................................................19 6.2.3 Slope mask interpolated from FCC mask...............................................................................................21 6.3 METHODOLOGY ...............................................................................................................................................23 6.3.1 Victim receiver categories ......................................................................................................................23 6.3.2 Reference UWB deployment scenarios...................................................................................................23 6.3.3 Single interferer.......................................................................................................................................24 6.3.4 Aggregate interference............................................................................................................................27 6.4 MEASUREMENTS ..............................................................................................................................................34 6.4.1 Scope of the measurement campaign......................................................................................................34 6.4.2 Incumbent radiocommunications services..............................................................................................35 6.4.3 Description of UWB interferer measurement.........................................................................................35 7 SUMMARY OF COMPATIBILITY STUDIES................................................................................................37 7.1 FIXED SERVICE (FS).........................................................................................................................................37 7.1.1 Summary table.........................................................................................................................................37 7.1.2 Conclusions .............................................................................................................................................40
Load more

Recommended publications
  • Frequency and Network Planning Aspects of DVB-T2
    Report ITU-R BT.2254 (09/2012) Frequency and network planning aspects of DVB-T2 BT Series Broadcasting service (television) ii Rep. ITU-R BT.2254 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.
    [Show full text]
  • Minimum Requirements for Dvb-T2 Set Top Boxes
    June 2014 MINIMUM REQUIREMENTS FOR DVB-T2 SET TOP BOXES Table of Content Symbols and Acronyms ........................................................................................................... 5 1 Introduction ..................................................................................................................... 7 1.1 Definitions ........................................................................................................................... 7 2 General Requirements .................................................................................................... 8 2.1 Electromagnetic compatibility, equipment security (EMC compatibility) ................. 8 2.2 Power Supply .................................................................................................................... 8 2.3 Identification of the equipment ....................................................................................... 8 2.4 Safety Requirements ........................................................................................................ 8 2.5 Support Package ............................................................................................................... 8 2.6 Power Supply Cord and Mains Plug .............................................................................. 8 2.7 Processor and Memory .................................................................................................... 9 2.8 Maintenance & Upgrade ................................................................................................
    [Show full text]
  • Cisco Broadband Data Book
    Broadband Data Book © 2020 Cisco and/or its affiliates. All rights reserved. THE BROADBAND DATABOOK Cable Access Business Unit Systems Engineering Revision 21 August 2019 © 2020 Cisco and/or its affiliates. All rights reserved. 1 Table of Contents Section 1: INTRODUCTION ................................................................................................. 4 Section 2: FREQUENCY CHARTS ........................................................................................ 6 Section 3: RF CHARACTERISTICS OF BROADCAST TV SIGNALS ..................................... 28 Section 4: AMPLIFIER OUTPUT TILT ................................................................................. 37 Section 5: RF TAPS and PASSIVES CHARACTERISTICS ................................................... 42 Section 6: COAXIAL CABLE CHARACTERISTICS .............................................................. 64 Section 7: STANDARD HFC GRAPHIC SYMBOLS ............................................................. 72 Section 8: DTV STANDARDS WORLDWIDE ....................................................................... 80 Section 9: DIGITAL SIGNALS ............................................................................................ 90 Section 10: STANDARD DIGITAL INTERFACES ............................................................... 100 Section 11: DOCSIS SIGNAL CHARACTERISTICS ........................................................... 108 Section 12: FIBER CABLE CHARACTERISTICS ...............................................................
    [Show full text]
  • Sdt303um Analog/Digital Tv Transmitter
    Screen Service SDT 303UM SDT303UM ANALOG/DIGITAL TV TRANSMITTER CONTENTS 1 INTRODUCTION ..................................................................................................................................... 2 2 EQUIPMENT COMPOSITION ................................................................................................................. 2 2.1 SINGLE AND DUAL DRIVER CONFIGURATION ............................................................................ 2 3 SCA 202UB ............................................................................................................................................. 5 4 SDT MAGNUM (See Relevant Manual) ................................................................................................. 15 4.1 CONTROL UNIT ............................................................................................................................. 15 4.2 POWER DISTRIBUTION UNIT ....................................................................................................... 16 4.3 OUTPUT COMBINER & DUMMY LOAD ........................................................................................ 16 4.4 OUTPUT DIRECTIONAL COUPLER .............................................................................................. 16 4.5 OUTPUT FILTER ........................................................................................................................... 16 5 TECHNICAL SPECIFICATIONS ...........................................................................................................
    [Show full text]
  • Radio Spectrum Memorandums of Understanding and Agreements
    Radio Spectrum Memorandums of Understanding and agreements Publication date: June 2017 About this document 1.1 This document provides details the Memoranda of Understanding (MoUs) and Agreements entered into by Ofcom relating to cross-border radio frequency coordination and the management of interference. The information provided in this document includes: Mobile Service and Broadband Wireless Business Radio Broadcasting Services: o BAND III (174-225/230 MHz) o BANDS IV/V (470-862 MHz) 1.2 MoUs define the signal power, in a specified frequency band, that may be received in a neighbour country from a station in the home country. Stations that exceed the defined power levels are coordinated directly between the administrations on behalf of the operators. MoUs do not give an absolute assurance of no interference into stations close to a border or set an absolute limit on the signal strength that may be received in one administration from a transmitter in another. They specify a trigger level, which is used to initiate a formal coordination procedure so that an administration may have knowledge of, and an opportunity to express concern about, transmitters in a neighbouring country. 1.3 Where they are available, recommendations published by the European Conference of Postal and Telecommunications (CEPT) typically provide a basis for the negotiation of MoUs with neighbouring administrations. It is unusual to make a separate assessment of interference between the UK and a neighbour administration. Ofcom contributes to the development of the CEPT recommendations. 1.4 The licensee is responsible for ensuring compliance with the terms of the MOU, Ofcom will coordinate with the neighbouring administration if the licensee is unable to comply.
    [Show full text]
  • UMTS); Requirements on Ues Supporting a Release-Independent Frequency Band (3GPP TS 25.307 Version 5.3.0 Release 5)
    ETSI TS 125 307 V5.3.0 (2004-09) Technical Specification Universal Mobile Telecommunications System (UMTS); Requirements on UEs supporting a release-independent frequency band (3GPP TS 25.307 version 5.3.0 Release 5) 3GPP TS 25.307 version 5.3.0 Release 5 1 ETSI TS 125 307 V5.3.0 (2004-09) Reference RTS/TSGR-0225307v530 Keywords UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission.
    [Show full text]
  • CEPT REPORT 21 1 July 2008
    CEPT REPORT 21 1 July 2008 CEPT Report 21 Report A from CEPT to the European Commission in response to the Mandate on: “Technical considerations regarding harmonisation options for the Digital Dividend” “Compatibility issues between “cellular / low power transmitter” networks and “larger coverage / high power / tower” type of networks” Final Report on 30 March 2007 by the CEPT ECC Electronic Communications Committee Electronic Communications Committee (ECC) within the European Conference of Postal and Telecommunications Administrations (CEPT) CEPT REPORT 21 1 July 2008 Table of contents 0 EXECUTIVE SUMMARY ............................................................................................................................ 3 1 INTRODUCTION ........................................................................................................................................ 10 2 MANDATE TO CEPT ................................................................................................................................. 10 3 REPORT........................................................................................................................................................ 11 3.1 THE CO-EXISTENCE OF RPC1 AND RCP2/3 NETWORKS IN BANDS IV AND V ....................................... 11 3.1.1 The issue ........................................................................................................................................... 11 3.1.1.1 General description..................................................................................................................................11
    [Show full text]
  • Frequency and Network Planning Aspects of DVB-T2
    EBU – TECH 3348 Frequency and Network Planning Aspects of DVB-T2 Status: Report Geneva May 2011 1 Page intentionally left blank. This document is paginated for two-sided printing EBU Tech 3348 Frequency & Network Planning Aspects of DVB-T2 Contents 1. Introduction ...................................................................................... 7 1.1 Commercial requirements for DVB-T2 ............................................................................ 7 1.2 DVB-T and DVB-T2; what is the difference?...................................................................... 8 1.3 Notes on this report.................................................................................................. 8 2. System properties ............................................................................... 9 2.1 Bandwidth ............................................................................................................. 9 2.2 FFT size ................................................................................................................ 9 2.3 Modulation scheme and guard interval ..........................................................................10 2.4 Available data rate..................................................................................................11 2.5 C/N values ............................................................................................................13 2.6 Rotated constellation...............................................................................................18
    [Show full text]
  • Air-Chemistry “Turbulence”: Power-Law Scaling and Statistical Regularity
    Atmos. Chem. Phys., 11, 8395–8413, 2011 www.atmos-chem-phys.net/11/8395/2011/ Atmospheric doi:10.5194/acp-11-8395-2011 Chemistry © Author(s) 2011. CC Attribution 3.0 License. and Physics Air-chemistry “turbulence”: power-law scaling and statistical regularity H.-m. Hsu1, C.-Y. Lin2, A. Guenther1, J. J. Tribbia1, and S. C. Liu2 1National Center for Atmospheric Research, Boulder, Colorado, USA 2Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan Received: 17 December 2010 – Published in Atmos. Chem. Phys. Discuss.: 22 March 2011 Revised: 1 July 2011 – Accepted: 22 July 2011 – Published: 18 August 2011 Abstract. With the intent to gain further knowledge on the 1 Introduction spectral structures and statistical regularities of surface atmo- spheric chemistry, the chemical gases (NO, NO2, NOx, CO, SO2, and O3) and aerosol (PM10) measured at 74 air quality During the last decades, a large quantity of near-surface air monitoring stations over the island of Taiwan are analyzed quality measurements, including aerosol and chemical gases, for the year of 2004 at hourly resolution. They represent has been accumulated. Significant progress in understand- a range of surface air quality with a mixed combination of ing chemical processes/reactions and their interactions with geographic settings, and include urban/rural, coastal/inland, meteorological processes in the lower atmosphere have been plain/hill, and industrial/agricultural locations. In addi- made, and some of them are described in Seinfeld and Pandis tion to the well-known semi-diurnal and diurnal oscillations, (2006). However, there is still a lack of information on how weekly, and intermediate (20 ∼ 30 days) peaks are also iden- chemical species are related to various dynamical scales in tified with the continuous wavelet transform (CWT).
    [Show full text]
  • Spectrum/Frequency Requirements for Bands Allocated to Broadcasting on a Primary Basis
    Report ITU-R BT.2387-0 (07/2015) Spectrum/frequency requirements for bands allocated to broadcasting on a primary basis BT Series Broadcasting service (television) ii Rep. ITU-R BT.2387-0 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.
    [Show full text]
  • Potential Benefits from Sub-700 Mhz Spectrum in India
    Potential benefits from sub-700 MHz spectrum in India A report for the GSMA January 2015 Tim Miller Val Jervis John Burns Sarongrat Wongsaroj Tim Hogg About Plum Plum offers strategic, policy, regulatory and technical advice on problems relating to the use of spectrum and to the telecommunications, online and audio-visual media sectors. A London-based partnership founded in 2007, it works for governments, regulators, service providers and equipment suppliers around the world. Its advice is based on economic analysis and technical knowledge of radio engineering, which it combines with extensive market knowledge of the communications sectors to provide clear and sound analysis. Plum Consulting, London T: +44(20) 7047 1919, www.plumconsulting.co.uk Table of Contents 1 Introduction ..................................................................................................................................... 1 1.1 Digital transition ......................................................................................................................... 1 1.2 Key working assumptions ......................................................................................................... 2 1.3 Structure of analysis .................................................................................................................. 2 2 The broadcasting market ............................................................................................................... 4 2.1 Terrestrial TV ...........................................................................................................................
    [Show full text]
  • Download (79.46
    Reliance Communications Limited Comments on the TRAI’s Consultation Paper on Issues Relating to Mobile Television Service Comments of RCOM on the Consultation Paper on Mobile Television Service General Comments 1. Worldwide a number of mobile operators have conducted mobile TV field trials and reported positive results. The Mobile broadcasting commercial services have been introduced in Korea, United States, Finland, Germany and few other countries. In India also, Doordarshan has currently launched a Mobile TV pilot project and is in the process of rolling out commercial Mobile TV services. To foster competition and technology innovation in the marketplace, private operators should also be given an opportunity and therefore formulation of proper regulatory framework and identification of proper spectrum bands for launch of this service are important. 2. We would like to stress that the mobile TV shall be a personalized service with an element of interactivity. Due to interactive features, the broadcasting service in the purest form shall be excluded. In this context mobile TV should be seen as coming together of the traditional broadcasting (point to area coverage) and communication services (one to one) in mobile environment. Therefore such services should be specifically provided under the Telecom license like Unified Access Service Licenses. 3. The innovative high capacity broadcast technologies with interactive capabilities of the communication networks shall spark the mobile TV services. The TRAI should, therefore, recommend an enabling framework so that telecom operators are able to use their infrastructures and have the benefit of synergies for the provisioning of the Mobile TV Services. 4. The TRAI should also address the important issue of interconnection like availability of content on non-discriminatory basis on mobile TV platform.
    [Show full text]