CEPT ERC REC 13-04 E-1999 Preferred Frequency Bands for Fixed Wireless Access in the Frequency Range between 3 and 29 5 GHz (Tallin 1998)《3-29 5GHz频率范围中固定无线接入首选频段 塔4林1998年》.pdf
《CEPT ERC REC 13-04 E-1999 Preferred Frequency Bands for Fixed Wireless Access in the Frequency Range between 3 and 29 5 GHz (Tallin 1998)《3-29 5GHz频率范围中固定无线接入首选频段 塔4林1998年》.pdf》由会员分享,可在线阅读,更多相关《CEPT ERC REC 13-04 E-1999 Preferred Frequency Bands for Fixed Wireless Access in the Frequency Range between 3 and 29 5 GHz (Tallin 1998)《3-29 5GHz频率范围中固定无线接入首选频段 塔4林1998年》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、CEPTIERCIREC 13-04 E Page 1 Distribution: B CEPT/ERC/RECOMMENDATION 13-04 E (Tallin 1998) PREFERRED FREQUENCY BANDS FOR FIXED WIRELESS ACCESS IN THE FREQUENCY RANGE BETWEEN 3 AND 29.5 GHz Recommendation proposed by the Working Group “Frequency Management” (WGFM) Text of the Reconiriieridation adopte
2、d by the “Eitropeari Radiocoiiniiiriications Conunittee” (ERC): INTRODUCTION Fixed Wireless Access (FWA) is encompassed by the definition of Wireless Access (WA), also known as Wireless Loca! Loor, (WLL).” recently developed by ITU-R. WA is 3 fold: FWA, Mobile Wireless Access (MWA) and Nomadic Wirel
3、ess Access (NWA). The latter two variants are not considered in this Recommendation. The ITU defines Wireless Access as “end user radio connection(s) to core networks”. This recommendation covers only FWA in frequency bands between 3 and 29.5 GHz. Multimedia Wireless Systems (MWS) above 29.5 GHz are
4、 catered for in separate ERC Decisions and Recommendations. The MWS band at 40.5 -43.5 GHz is so designated. This Recommendation should be complemented, as necessary, by other Recommendations or Decisions covering the other aspects of MWS. This Recommendation has been prepared in the light of guidan
5、ce from CEPT that it is urgently needed by CEPT administrations. However, due to the rapid evolution of the telecommunication environment, a review of this Recommendation will be necessary within the next 2 years. FWA can be provided by using the technologies based on infrastructure of cordless, cel
6、lular, point-to-point, point to-multipoint, and multipoint-to-multipoint systems. In most cases FWA systems in the frequency range 3-29.5 GHz can be provided by using either point-to-multipoint or multipoint-to-multipoint technology operating in frequency bands allocated to the fixed service. Howeve
7、r, in some cases, point-to-point FWA technology can be used to connect subscribers. FWA technology can provide data rates from 9.6kbit/sec up to several MbiVsec. This Recommendation identifies preferred frequency bands for FWA in order to encourage Administrations to progress towards a harmonised si
8、tuation. Currently it is recognised that, in some cases, due to the use of the proposed preferred bands by other applications, it is not possible to accommodate the spectrum requirements for FWA in a well-defined set of harmonised bands in CEPT countries. For this reason a flexible approach with the
9、 identification of different frequency bands has been adopted in this Recommendation, allowing room to adapt to specific national situations and needs and giving firm guidelines to administrations, operators and manufacturers. FWA technologies may be used for telecommunicatioris services (telephone,
10、 video telephones, interactive TV, data transmission, etc.) as well as for MWS (interactive TV, fast Internet, etc.). At present Administrations will provide regulations in each country to identify the appropriate bands for such services. The process of convergence will help to achieve harmonisedopt
11、imised solutions. Edition of May 31, lo99 CEPTIERCIREC 13-04 E Page 2 “The European Conference of Postal and Telecommunications Administrations, coiuideririg a) that in Europe requirements were identified for the provision of harmonised frequency spectrum for FWA systems, especially in frequency ban
12、ds above 3 GHz; b) that in Europe a band has been designated around 40 GHz as the home for broadband, v, multimedia wireless services; c) that the use of harmonised frequency bands would ease frequency co-ordination between adjacent countries and with other radio services, that these requirements ma
13、y vary considerably from country to country; d) that at present a single common harmonised frequency band is not available and may not be appropriate; e) that the identification of a number of frequency bands allocated to the fixed service is necessary to provide for the flexible accommodation of th
- 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:
- CEPTERCREC1304E1999PREFERREDFREQUENCYBANDSFORFIXEDWIRELESSACCESSINTHEFREQUENCYRANGEBETWEEN3AND295GHZTALLIN19983295GHZ

链接地址:http://www.mydoc123.com/p-592831.html