1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationMethods of measurement for digital network Performance characteristics of terrestrial digital multimediatransmission networkBS EN 62553:2013National forewordThis British Standard
2、 is the UK implementation of EN 62553:2013. It is identical to IEC 62553:2012.The UK participation in its preparation was entrusted to Technical CommitteeEPL/103, Transmitting equipment for radio communication.A list of organizations represented on this committee can be obtained onrequest to its sec
3、retary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. The British Standards Institution 2013 Published by BSI Standards Limited 2013 ISBN 978 0 580 64892 2 ICS 33.170 Compliance with a British Standard cannot
4、 confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2013.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 62553:2013EUROPEAN STANDARD EN 62553 NORME EUROPENNE
5、EUROPISCHE NORM February 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form
6、and by any means reserved worldwide for CENELEC members. Ref. No. EN 62553:2013 E ICS 33.170 English version Methods of measurement for digital network - Performance characteristics of terrestrial digital multimedia transmission network (IEC 62553:2012) Mthodes de mesure applicables aux rseaux numri
7、ques - Caractristiques de performance des rseaux de transmission numriques multimdia terrestres (CEI 62553:2012) Messverfahren fr digitale Netze - Leistungskenndaten von terrestrischen digitalen Multimedia-Sendernetzen (IEC 62553:2012) This European Standard was approved by CENELEC on 2013-01-01. CE
8、NELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on
9、 application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the C
10、EN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hunga
11、ry, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 62553:2013EN 62553:2013 - 2 - Foreword The text of document 103/89/CDV, future edition 1 of IEC
12、62553, prepared by IEC/TC 103 “Transmitting equipment for radiocommunication“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62553:2013. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identic
13、al national standard or by endorsement (dop) 2013-10-01 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2016-01-01 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or
14、 CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62553:2012 was approved by CENELEC as a European Standard without any modification. BS EN 62553:2013- 3 - EN 62553:2013 Annex ZA (normative) Normative refer
15、ences to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the la
16、test edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 62273-1 2007 Methods of measurement for radio transmitte
17、rs - Part 1: Performance characteristics of terrestrial digital television transmitters EN 62273-1 2007 ISO/IEC 13818-1 + A1 + A2 + A3 + A4 + A5 + A6 2007 2007 2008 2009 2009 2011 2011 Information technology - Generic coding of moving pictures and associated audio information: Systems - - ETSI TR 10
18、1 190 - Digital Video Broadcasting (DVB); Implementation guidelines for DVB terrestrial services; Transmission aspects - - ETSI TS 101 191 - Digital Video Broadcasting (DVB); DVB mega-frame for Single Frequency Network (SFN) synchronization - - ETSI TR 102 377 - Digital Video Broadcasting (DVB); DVB
19、-H Implementation Guidelines - - ARIB STD-B31 - Transmission system for digital terrestrial television broadcasting - - BS EN 62553:2013 2 62553 IEC:2012(E) CONTENTS 1 Scope . 7 2 Normative references . 7 3 Terms and abbreviations 8 4 General conditions of measurement . 9 4.1 Definitions and classif
20、ications of digital terrestrial TV transmission network 9 4.1.1 General . 9 4.1.2 Network classification for transmitting frequencies . 10 4.1.3 Network classification on useable contribution links for signal transport system between stations . 11 4.2 Signal form 11 4.2.1 TS signal form . 11 4.2.2 I
21、F signal form 11 4.3 Test signals and auxiliary signals for measurement . 11 4.3.1 Test signals . 11 4.3.2 Auxiliary signals for measurement . 12 5 Methods of measurement for signal delay time . 12 5.1 Scope 12 5.2 Definition of signal delay time 13 5.2.1 Delay time . 13 5.2.2 Relative delay time di
22、fference 13 5.3 Direct/indirect measurement 13 5.3.1 General . 13 5.3.2 Direct measurement system 14 5.3.3 Indirect measurement system . 14 5.4 Measurement place . 14 5.5 Classification of measurement system . 15 6 Methods of measurement for performances of radio wave relay station 17 6.1 Scope 17 6
23、.2 Measurement diagram and measurement items . 17 6.2.1 General . 17 6.2.2 Measurement diagram . 17 6.2.3 Measurement items . 18 6.3 Methods of measurement 18 6.3.1 General . 18 6.3.2 BER (case 2) . 19 6.3.3 Equivalent noise degradation (END) 20 6.3.4 Amplitude frequency characteristics 21 6.3.5 Del
24、ay profile 22 6.3.6 Phase jitter 22 7 Methods of measurement for performances of signal quality improvement instrument used in radio wave relay station . 24 7.1 General . 24 7.2 Classification of signal quality improvement instrument . 25 7.3 Measurement diagram and measurement condition . 25 7.4 Co
25、mmon measurement items 25 BS EN 62553:201362553 IEC:2012(E) 3 7.5 Methods of measurement for each kind of compensator 26 Annex A (informative) Examples of measurement methods for signal delay . 27 Annex B (informative) Examples of measurement methods for signal quality of relay stations . 38 Annex C
26、 (normative) Principle and methods of measurement of compensators 45 Figure 1 Example of transmission network . 10 Figure 2 Delay time and relative delay time difference definitons . 13 Figure 3 Direct and indirect measurement method . 14 Figure 4 Measurement diagram of received signal of relay stat
27、ion (case a) . 17 Figure 5 Measurement diagram of relay station (case b) . 17 Figure 6 BER- Measurement method . 20 Figure 7 Definition of END . 21 Figure 8 Measurement diagram of amplitude-frequency characteristics 22 Figure 9 Measurement block diagram of delay profile 22 Figure 10 Reference model
28、23 Figure 11 Conceptual diagram of relay station using a compensator 25 Figure A.1 General measurement system for cases 1 to 3 . 27 Figure A.2 Example of frame sync signal extracting part 28 Figure A.3 Example of OFDM demodulator for frame timing extraction . 29 Figure A.4 Block diagram of direct me
29、asurement methods for time delay of OFDM signal 30 Figure A.5 Example of frequency characteristics of combined signal 31 Figure A.6 Example of delay profile of combined signal . 31 Figure A.7 General measurement system for cases 5,6,13 and 14 . 32 Figure A.8 Timing chart for signal delay measurement
30、 . 32 Figure A.9 Principle of measurement using 1 pps signal 33 Figure A.10 General measurement system for cases 7, 8 and 15,16 34 Figure A.11 Measurement system for delay time (time reference is 1pps signal of GPS). 35 Figure A.12 Timing relation of each signals 36 Figure A.13 Delay profile of OFDM
31、 signal 37 Figure B.1 BER measurement conceptual diagram for Null Packet method 39 Figure B.2 Examples of measurement result by Null Packet method 39 Figure B.3 Method to compare the data before/after correction 40 Figure B.4 Superimposed C/N measurement system 41 Figure B.5 Inherent degradation of
32、OFDM demodulator measurement system . 43 Figure B.6 Calculation process of delay profile 44 Figure C.1 Example of measurement block diagram for performances of loop-back canceller . 46 Figure C.2 Example of measurement block diagram for performances of diversity reception equipment . 48 Figure C.3 E
33、xample of measurement block diagram for performances of co-channel interference canceller . 50 BS EN 62553:2013 4 62553 IEC:2012(E) Figure C.4 Example of measurement block diagram for performances of C/N Reset equipment . 52 Table 1 Classification of contribution link . 11 Table 2 Parameter set of O
34、FDM signal for test in ISDB-T system. 11 Table 3 Parameter set of OFDM signal for test in DVB-T/H system 12 Table 4 Combination of signal type 13 Table 5 Classification of measurement system for signal delay time 16 Table 6 An example of measurement items for Relay station . 18 Table 7 Example of th
35、e parameter set of spectrum analyzer 22 Table 8 Compensators used in digital terrestrial broadcasting relay network 25 Table 9 Examples of measurement items for signal quality improvement instrument 26 Table A.1 Signal format and timing extraction of each case . 27 Table A.2 Equipment list for measu
36、rement . 30 Table A.3 Equipment list for delay time measurement 35 Table B.1 Definition of Null Packet (in case of ISDB-T) 38 Table B.2 Example of noise power measurement parameters (6 MHz ISDB-T) . 42 Table B.3 Example of signal power measurement parameters (6 MHz ISDB-T) 42 BS EN 62553:201362553 I
37、EC:2012(E) 7 METHODS OF MEASUREMENT FOR DIGITAL NETWORK Performance characteristics of terrestrial digital multimedia transmission network 1 Scope When a transmission network for digital terrestrial television broadcasting (DTTB) is being deployed, new networking technologies such as the Single Freq
38、uency Network (SFN) can be employed excelling the conventional analogue TV systems. However, new technical evaluation parameters are introduced for installing SFN systems. In addition new quality evaluation methods are also established in order to achieve stable and high-quality broadcasting service
39、s avoiding the cliff effect, which is one of the typical phenomena in the digital transmission that the signal quality is abruptly degraded when the received C/N becomes just lower than a specific value representing the system limit. Given the background described above, this International Standard
40、has the purposes of establishing measuring methods that enable the objective evaluation of the performance of transmission networks so as to make stable DTTB services a reality, establishing a technical baseline, such as a definition of technical terms, to standardize measuring methods. The measurem
41、ent methods described in this standard are intended for digital terrestrial television transmission network test and validation. The measurement methods for digital terrestrial transmitter are not included in this standard. These methods are described in IEC 62273-1. This standard does not give any
42、regulations and/or mandatory requirements. The specifications and requirements defined for each system have priority over this standard. However, there may be some cases where details are not specified in each individual specification or different systems should be evaluated under a common measureme
43、nt method. The purpose of this standard is to provide a common technical baseline that makes measurement results comparable in all cases. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For da
44、ted references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 62273-1:2007, Methods of measurement for radio transmitters Performance characteristics of terrestrial digital televisiont transmitters ISO/IE
45、C 13818-1:2007, Information technology Generic coding of moving pictures and associated audio information: Systems Amendments 1 to 6 TR 101 190, Digital video broadcasting (DVB); implementation guidelines for DVB Terrestrial services;Transmission aspects BS EN 62553:2013 8 62553 IEC:2012(E) TS 101 1
46、91, Digital video broadcasting (DVB); DVB mega-frame for Single Frequency Network (SFN) synchronization TR 102 377, Digital Video Broadcasting (DVB); DVB-H Implementation Guidelines ARIB STD-B31, Transmission system for digital terrestrial television broadcasting 3 Terms and abbreviations ADC Analog
47、 to Digital Converter ARIB Association of Radio Industries and Businesses ASI Asynchronous Serial Interface ATM Asynchronous Transfer Mode BER Bit Error Ratio C/N Carrier to Noise rate CPU Central Processing Unit DTTB Digital Terrestrial Television Broadcasting DVB Digital Video Broadcasting DVB-H D
48、VB Handheld DVB-T DVB Terrestrial D/U Desired to Undesired Signal Ratio END Equivalent Noise Degradation ETSI European Telecommunication Standards Institute FFT Fast Fourier Transform GPS Global Positioning System IF Intermediate Frequency IFFT Inverse Fast Fourier Transform IIP ISDB-T Information P
49、acket IP Internet Protocol ISDB-T Integrated Services Digital Broadcasting Terrestrial ISI Inter Symbol Interference ISO International Organization for Standardization ITU International Telecommunication Union JEITA Japan Electronics and Information Technology Industries Association MER Modulation Error Ratio MFN Multi-Frequency Network MIP Mega-frame Initialization Packet MMSE Minimum Mean Square Error MPEG Movi
