ETSI EN 301 253-2001 Fixed Radio Systems Point-to-Multipoint Equipment Frequency Hopping Code Division Multiple Access (FH-CDMA) Point-To-Multipoint Digital Radio Systems in Freque.pdf
《ETSI EN 301 253-2001 Fixed Radio Systems Point-to-Multipoint Equipment Frequency Hopping Code Division Multiple Access (FH-CDMA) Point-To-Multipoint Digital Radio Systems in Freque.pdf》由会员分享,可在线阅读,更多相关《ETSI EN 301 253-2001 Fixed Radio Systems Point-to-Multipoint Equipment Frequency Hopping Code Division Multiple Access (FH-CDMA) Point-To-Multipoint Digital Radio Systems in Freque.pdf(24页珍藏版)》请在麦多课文档分享上搜索。
1、ETSI EN 301 253 1.2.1 (2001-02) European Standard (Telecommunications series) Fixed Radio Systems; Point-to-multipoint equipment; Frequency Hopping Code Division Multiple Access (FH-CDMA); Point-to-multipoint digital radio systems in frequency bands in the range 3 GHz to 11 GHz 2 ETSI EN 301 253 V1.
2、2.1 (2001-02) Tt- Reference REN/TM-04111-21 Keywords CDMA, DRRS, multipoint, radio, RLL, transmission, FWA ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre
3、 la Sous-prfecture de Grasse (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from: present document may be made available in more than one electronic version or in print. In any case of existing perceived difference in contents between such versions, the
4、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
5、 change of status. Information on the current status of this and other ETSI documents is available at :/.$./$/ If you find errors in the present document, send your comment to: editor etsi.fr Copyright Notification No part may be reproduced except as authorized by written permission. The copyright a
6、nd the foregoing restriction extend to reproduction in all media. 8 European Telecommunications Standards Institute 2001. All rights reserved. ETSI 3 ETSI EN 301 253 V1.2.1 (2001 -02) Contents Intellectual Property Rights 5 Foreword 5 Introduction 6 1 1.1 1.2 1.3 1.4 2 3 3.1 3.2 3.3 4 4.1 4.2 4.2.1
7、4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 5 5.1 5.2 5.3 5.4 5.4.1 5.4.2 5.4.2.1 5.4.2.2 5.4.3 5.4.3.1 5.4.3.2 5.4.4 5.4.5 5.5 5.5.1 5.5.2 5.5.3 5.5.4 5.5.4.1 5.5.4.2 5.5.4.3 5.6 5.6.1 5.6.2 Scope 7 Applications 7 Compatibility 7 References 8 Definitions, symbols and abbreviations . 10 Frequency bands and channe
8、l arrangements . 7 Access Method 7 Definitions 10 Symbols 11 Abbreviations 11 General system architecture 12 Sub-system Components . 13 Transmission Error Performance 13 Round Trip Delay 13 Telecommunications Management Network (TMN) interface . 14 Synchronization . 14 Radio characteristics . 14 Sys
9、tem characteristics 13 Transparency and voice coding methods . 14 FH characteristics 14 Frequency bands 14 Channel arrangements . 14 Maximum System Capacity . 15 Transmitter (Tx) characteristics . 15 Tx power range 15 Automatic Transmit Power Control (ATPC) 15 Remote Transmit Power Control (RTPC) 16
10、 Spectrum density mask . 16 Discrete CW components exceeding the spectrum mask limit (all stations) 17 Transmit Power Control . 15 Spectrum Mask 16 Transmitter spurious emissions . 18 Radio Frequency (RF) tolerance . 18 Receiver (Rx) Characteristics 18 Input level range 18 Spurious Emissions 18 BER
11、Performance 19 Interference Sensitivity 19 Co channel interference sensitivity 19 Adjacent channel interference sensitivity . 20 Antenna Port Characteristics 20 RF interface . 20 Return loss . 20 Broadband Continuous Wave (CW) interference rejection capability . 20 6 7 7.2 Environmental Conditions .
12、 21 Types of subscriber equipment and network exchange interface 21 Power supply and environmental characteristics 21 7.1 Power Supply 21 ETSI 4 ETSI EN 301 253 V1.2.1 (2001-02) 7.2.1 Equipment within weather-protected locations 22 7.2.2 Equipment for non weather-protected locations 22 7.3 ElecoMagn
13、etic Compatibility (EMC) Conditions . 22 Annex A (informative): Bibliography . 23 History . 24 ETSI 5 ETSI EN 301 253 V1.2.1 (2001-02) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these esse
14、ntial IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR O00 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest update
15、s are available on the ETSI Web server ClattD:/www.etsP.c/iDr. Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR O00 314 (or the updates on the ETSI Web server
16、) 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 Committee Transmission and Multiplexing (TM). The former title of the present document was “Transmission and Multiplexing (TM); Di
17、gital Radio Relay Systems (DRRS); Frequency Hopping Code Division Multiple Access (FH-CDMA); Point-to-multipoint DRRS in fi-equency bands in the range 3 GHz to 11 GHz“. National transposition dates Date of adoption of this EN Date of latest announcement of this EN (doa): Date of latest publication o
18、f new National Standard or endorsement of this EN (dop/e): Date of withdrawal of any conflicting National Standard (dow): 16 February 2001 31 May 2001 30 November 2001 30 November 2001 ETSI 6 ETSI EN 301 253 V1.2.1 (2001-02) Introduction The main field of application of Point-to-Multipoint (P-MP) Sy
19、stems is to provide access to both public and private networks (Public Switched Telephone Network (PSTN), Private Data Network (PDN), .). By means of P-MP systems the network service area may be extended to cover both distant and scattered subscriber locations; and the systems may be applied to buil
20、d new access networks covering both urban and rural areas. Subscribers are offered the full range of services by the particular public or private network. Subscribers have access to these services by means of the various standardized user network interfaces (2-wire loop, new data services). P-MP sys
21、tems provide standard network interfaces and transparently connect subscribers to the appropriate network node. These systems allow a service to be connected to a number of subscribers ranging ftom a few to several thousand, and over a wide range of distances. P-MP systems are generally configured a
22、s Pre-Assigned Multiple Access (PAMA) Radio Systems or as Demand Assigned Multiple Access (DAMA) Radio Systems. The essential features of a typical P-MP DAMA Radio System are: - efficient use of the radio spectrum; - concentration; - transparency. Radio is often the ideal way of obtaining communicat
23、ions at low cost and almost independent of distance, and difficult topography. Moreover, a small number of sites is required for these installations, thus facilitating rapid implementation and minimizing maintenance requirements of the systems. Concentration means that m subscribers can share n radi
24、o channels (m being larger than n), allowing better use to be made of the available frequency spectrum and at a lower equipment cost. The term “multi-access means that every subscriber has access to every channel (instead of a fixed assignment as in most multiplex systems). When a call is initiated
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ETSIEN3012532001FIXEDRADIOSYSTEMSPOINTTOMULTIPOINTEQUIPMENTFREQUENCYHOPPINGCODEDIVISIONMULTIPLEACCESSFHCDMAPOINTTOMULTIPOINTDIGITALRADIOSYSTEMSINFREQUEPDF

链接地址:http://www.mydoc123.com/p-729404.html