1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 33.060.30 ISBN 0-626-17407-4 SANS 301461:2005Edition 1ETSI EN 301461:2002Edition V1.3.1SOUTH AFRICAN NATIONAL STANDARD Fixed Radio Systems; Point-to-
4、point equipment; High capacity fixed radio systems carrying SDH signals (2 x STM-1) in frequency bands with 40 MHz channel spacing and using Co-Channel Dual Polarized (CCDP) operation This national standard is the identical implementation of ETSI EN 301461:2002 and is adopted with the permission of
5、the European Telecommunications Standards Institute. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 301461:2005 Edition 1 ETSI EN 301461:2002 E
6、dition V1.3.1 Table of changes Change No. Date Scope Abstract Specifies the minimum performance parameters for a high capacity digital radio-relay system operating in frequency bands with 40 MHz channel spacing in the 4 GHz, 5 GHz, U6 GHz and 11 GHz bands. Keywords DFRS, DRRS, point-to-point, radio,
7、 SDH, STM, transmission. National foreword This South African standard was approved by National Committee StanSA TC 74, Communication technology, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. In South Africa, spectrum band plans are reg
8、ulated by the Independent Communications Authority of South Africa (ICASA). The South African Table of Frequency Allocations is obligatory for South Africa and will override any reference to frequency ranges as mentioned in this standard. ETSI EN 301 46 V1.3.1 (2002-11) European Standard (Telecommun
9、ications series) Fixed Radio Systems; Point-to-point equipment; High capacity fixed radio systems carrying SDH signals (2 x STM-1) in frequency bands with 40 MHz channel spacing and using Co-Channel Dual Polarized (CCDP) operation ETSl EN 301 461 V1.3.1 (2002-1 1) Reference RENKM-04140 Keywords DRRS
10、, point-to-point, radio, SDH, STM, transmission, DFRS ETSl 650 Route des Lucioles F-06921 Sohia Antiolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association a but non lucratif enregistree a la Sous-Prefecture de Grasse (06) No 7803188 lmor
11、tant notice Individual copies of the present document can be downloaded from: http:ilww.eisi.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
12、 Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSl printers of the PDF version kept on a specific network drive within ETSl Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Infor
13、mation on the current status of this and other ETSl documents is available at http:l/portal.eisi.oritbistalus!status.asp If you find errors in the present document, send your comment to: editor etsi.org Copyright Notification No part may be reproduced except as authorized by written permission. The
14、copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2002. All rights reserved. DECT, PLUGTESTS and UMTS are Trade Marks of ETSl registered for the benefit of its Members. TIPHON and the TIPHON logo are Trade Marks currently b
15、eing registered by ETSl for the benefit of its Members. 36ppTM is a Trade Mark of ETSl registered for the benefit of its Members and of the 3GPP Organizational Partners. 3 ETSl EN 301 461 V1.3.1 (2002-1 1) Contents Intellectual Property Rights 5 . Foreword 5 1 Scope 6 2 References 7 . 3 Symbols and
16、abbreviations 9 3.1 Symbols 9 . . . 3.2 Abbreviations 9 4 General Characteristics . 10 4.1 Frequency bands and channel arrangements 10 4.2 Modes of operation . 11 4.3 Compatibility requirements between systems . 11 4.4 Error performance and availability requirements . 11 4.5 Environmental profile .
17、11 4.5.1 Equipment within weather protected locations (indoor locations) 12 4.5.2 Equipment for non-weather protected locations (outdoor locations) 12 4.6 Mechanical dimensions 12 4.7 Power supply 12 4.8 Electromagnetic compatibility 12 4.9 Block diagram 13 . 4.10 TMN interface 13 4.11 Branching fee
18、der and antenna requirements . 14 4.11.1 Antenna radiation pattern 14 . 4.11.2 Antenna cross-polar discrimination 14 4.11.3 Antenna Inter-Port Isolation (IPI) . 14 4.11.4 Waveguide flanges 14 4.1 1.5 Return Loss (RL) 14 4.1 1.6 Intermodulation products I4 5 Parameters for digital systems 15 5.1 Tran
19、smission capacity 15 5.2 Baseband parameters 15 . 5.2.1 Plesiochronous interfaces I5 5.2.2 SDH baseband interface 15 . . 5.3 Transmitter characteristics 15 5.3.1 Transmitter power range . 15 5.3.2 Automatic Transmit Power Control 15 5.3.3 Transmitter output power tolerance 16 5.3.4 TX local oscillat
20、or frequency arrangements 16 5.3.5 RF spectrum mask 16 5.3.6 Discrete CW lines exceeding the spectrum mask limit . 17 5.3.6.1 Spectral lines at the symbol rate 17 5.3.6.2 Other spectral lines 17 . 5.3.7 Spurious emissions 18 . 5.3.7.1 Spurious emissions - external 18 5.3.7.2 Spurious emissions - int
21、ernal 18 5.3.8 Radio frequency tolerance 19 5.4 Receiver characteristics 19 5.4.1 Input level range . 19 5.4.2 RX local oscillator frequency arrangements . 19 . . . 5.4.3 Spurious emlssons 20 . . 5.4.3.1 Spurious emsslons - external 20 . . 5.4.3.2 Spurious emissions - internal 20 . . . . 5.4.4 Recev
22、er image rejection 20 5.5 System performance without diversity . 20 ETSI BER as a function of receiver input signal level RSL 20 Equipment residual BER 21 Interference sensitivity 21 . Co-channel “external“ interference sensltvty . 21 . Adjacent channel interference sensitlvlty 21 CW interference 22
23、 . . Distortion sensltlvty 22 . Cross Polar Interference Senstivity . 23 . . Co-channel “internal“ interference sensitivity in flat fading condltlons . 23 . . Co-channel “internal“ interference sensitivity in dispersive fading condtons 23 System characteristics with diversity . 23 . Differential del
24、ay compensation 23 . BER performance 24 Annex A (informative): Additional Information . 26 A . 1 Antenna requirements . 26 A . 1.1 Antenna radiation patterns 26 A . 1.2 Antenna Cross-Polar Discrimination (XPD) 26 A . 1.3 Antenna Inter-Port Isolation (IPI) 26 A . 1.4 Feederlantenna return loss 26 A.2
25、 Automatic Transmit Power Control . 26 A.3 Spectrum masks 27 A.4 Co-channel (internal and external) and adjacent channel interference . 27 A.5 Measurement test set for XPI characteristics . 29 Annex B (informative): Bibliography . 30 History 31 Intellectual Property Rights IPRs essential or potentia
26、lly essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 311: “Intellectual Property Rights (IPRsj; Essential, or yoteiztially Esserztial,
27、IPRs izor$ed to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/ucbap.ci.itrg/IPR/homc asp). Pursuant to the ETSI IPR Policy. no investigation, including IPR searches, has been carried out by ETSI. No guaran
28、tee can be given as to the existence of other IPRs not referenced in ETSI SR 000 3 14 (or the updates on the ETSI Web server) which are, or may be, or may become. essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Commit
29、tee Transmission and Multiplexing (TM). The present document introduces new classes and grades of equipments focused on applications with single or few channels per links. with or without the XPIC option, suitable for co-polar adjacent channel operation; typical for mobile networks infrastructures.
30、National transposition dates Date of adoption of this EN: 1 November 2002 Date of latest announcement of this EN (doa): 28 February 2003 Date of latest publication of new National Standard or endorsement of this EN (dople): 3 1 August 2003 Date of withdrawal of any conflicting National Standard (dow
31、): 3 1 August 2003 Scope The present document specifies the minimum performance parameters for a high capacity digital radio-relay system operating in frequency bands with 40 MHz channel spacing in the 4 GHz. 5 GHz. U6 GHz and 11 GHz bands. The channel capacty is 1 x STM 1 on each polarization that
32、allows to transmit up to 2 x STM 1 signals in the same RF channel by using both polarizations in co-channel dual polarized (CCDP) mode of operation with cross-polar interference canceller techniques (XPIC). The present document is also applicable to 1 x STM-1 ACCP systems operating with co-polar arr
33、angement of 40 MHz for which the CCDP operation with XPIC is considered a non applicable option: for those systems the clauses relevant to XPIC operation (i.e. co-channel “internal“ interference) are not applicable. These systems are intended for local high capacity links (e.g. mobile infrastructure
34、 connections) where few channels may be used by different operators) and the crowded environment may require co-polar operation on adjacent channels. Recognizing the benefits from the industrial point of view. two different grades of system have been defined Grade A: based on 30 MHz-like system tech
35、nology (i.e. based on 128 states modulation) with reduced receiver BER threshold capability. Grade B: based on 40 MHz system technology (i.e. based on 64 states modulation) with improved receiver BER threshold capability. It has to be noted that STM-1 systems can be grouped in order to offer an SDH
36、interface higher than STM-1 The area of application of these digital radio-relay systems is foreseen to be in trunk and access networks forming part of an SDH-network including optical rings. Systems considered in the present document shall be able to respect ITU-R and ITU-T performance objectives.
37、The systems considered should operate in these networks having regard for existing hop length, which are considered to be normally up to about 30 km to 40 krn for access and about 60 km for trunk networks, respectively. Hop lengths greater than this latter length are used in special applications. Th
38、e systems considered in the present document are intended to allow operation with respect to existing PDH systems using 16 QAM modulation and transmitting 140 MbitJs applying a channel spacing of 40 MHz. The parameters specified fall into two categories: a) parameters that are required to provide co
39、mpatibility between channels connected to the same antenna via a multichannel branching system. or channels on the same route connected to separate antennas; NOTE: Due to the internal functionality of the XPIC, equipment operating on both polarization of the same channel is considered to form a sing
40、le CCDP system. b) parameters defining the transmission quality of the proposed system. The standardization deals with baseband, IF and RF characteristics relevant to SDH. Antendfeeder system requirements are also considered for information to the reader, however antenna characteristics are generall
41、y covered in EN 300 833 34. Baseband interfaces have to be considered for STM-1 signals in accordance with ITU-T Recommendations G.707 I and G.957 2. PDH interfaces according to ITU-T Recommendation 6.703 3 for signals mapped into STM-1 signals according to ITU-T Recommendation G.707 I could be used
42、. Safety aspects will not be considered in the present document. 7 ETSl EN 301 461 V1.3.1 (2002-1 1) 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of pub
43、lication andior edition number or version number) or non-specific. For a specific reference: subsequent revisions do not apply. For a non-specific reference. the latest version applies. I ITU-T Recommendation G.707N. 1322 (2000): “Network node interface for the synchronous digital hierarchy (SDH)“.
44、PI ITU-T Recommendation 6.957 (1999): “Optical interfaces for equipments and systems relating to the synchronous digital hierarchy“. 31 ITU-T Recommendation G.703 (2001): “Physical/electrical characteristics of hierarchical digital interfaces“. 41 CEPT/ERCREC 12-08: “Harmonised radio frequency chann
45、el arrangements and block allocations for low. medium and high capacity systems in the band 3 600 MHz to 4 200 MHz“. s ITU-R Recommendation F.635-6: “Radio-frequency channel arrangements based on a homogeneous pattern for radio-relay systems operating in the 1 GHz band“. 61 ITU-R Recommendation F. 1
46、099-3: “Radio-frequency channel arrangements for high-capacity digital radio-relay systems in the 5 GHz (4 400 - 5 000 MHz) band“. 71 CEPTERC/REC 14-02: “Radio-frequency channel arrangements for medium and high capacity analogue or high capacity digital radio-relay systems operating in the band 6 42
47、5 MHz - 7 125 MHz“. ITU-R Recommendation F.384-7: “Radio-frequency channel arrangements for medium and high capacity analogue or digital radio-relay systems operating in the upper 6 GHz band“. CEPTERCREC 12-06: “Harmonised radio frequency channel arrangements for digital terrestrial fixed systems op
48、erating in the band 10,7 GHz to 11.7 GHz“. ITU-R Recommendation F.387-9: “Radio-frequency channel arrangements for radio-relay systems operating in the 11 GHz band“. ITU-T Recommendation G.826 (1999): “Error performance parameters and objectives for international, constant bit rate digital paths at
49、or above the primary rate“. ITU-R Recommendation F.1397: “Error performance objectives for real digital radio links used in the international portion of a 27 500 km hypothetical reference path at or above the primary rate“. ITU-R Recommendation F. 1491: “Error performance objectives for real digital radio links used in the national portion of a 27 500 km hypothetical reference path at or above the primary rate“. ITU-R Recommendation F.752-1: “Diversity techniques for radio-relay systems“ ITU-R Recommendation F. 1093-1: “Effects of multipath pro
