CEPT T R 22-06 E-1994 Harmonised Radio Frequency Bands for High Performance Radio Local Area Networks (HIPERLANs) in the 5 GHz and 17 GHz Frequency Range《5 GHz和17 GHz频率范围高性能无线电局域网(.pdf
《CEPT T R 22-06 E-1994 Harmonised Radio Frequency Bands for High Performance Radio Local Area Networks (HIPERLANs) in the 5 GHz and 17 GHz Frequency Range《5 GHz和17 GHz频率范围高性能无线电局域网(.pdf》由会员分享,可在线阅读,更多相关《CEPT T R 22-06 E-1994 Harmonised Radio Frequency Bands for High Performance Radio Local Area Networks (HIPERLANs) in the 5 GHz and 17 GHz Frequency Range《5 GHz和17 GHz频率范围高性能无线电局域网(.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、STD-CEPT T/R 22-Ob E-ENGL 1994 = 232b414 0014b50 b42 T/R 22-06 E Page 1 Distribution: 6 Recommendation T/R 22-06 (Madrid 1992, revised at Nicosia 1994) HARMONISED RADIO FREQUENCY BANDS FOR HIGH PERFORMANCE RADIO LOCAL AREA NETWORKS (HIPERLANs) IN THE 5 GHz AND 17 GHz FREQUENCY RANGE Recommendation p
2、roposed by the Working Group “Frequency Management“ (FM) Text of the Recommendation adopted by the “European Radiocommunications Committee“ (ERC): INTRODUCTION In 1991 the European Radiocommunications Committee (ERC) published Report No. 1 on the harmonisation of frequency bands for Radio Lorn1 Area
3、 Networks (RLANs). Subsequently, CEPT Recommendation TIR 10- O1 E (relating to the harmonised radio frequency bands for Wide Band Data Transmission Systems using spread spectrum technology) was published. This Recommendation rmgnises the need to idenw suitable radio spectnim to meet the requirements
4、 of a future European standard for High Performance Radio Local Area Networks (HIPERLANs) being developed by ETSI. After consultation with ETSI, it was established that HIPERLANs required a predictable sharing environment and a band of at least 150 MHz, estimated from the instantaneous data rate of
5、20 Mbits/s per terminal and an average of loo0 MbitdS/floor/hectare. A requirement for two different fiequency bands was foreseen, one offering good fiequency re-use within buildings and the other offering good in-building penetration. It is recognised that the fahire HIPERLAN standard requiring hig
6、her data rates will necessitate a more predictable sharing environment. In cooperation with ETSI and after forther analysis and spectrum engineering studies suitable spectrum was identified in the 5 GHz and the 17 GHz frequency range. CEFT carried out compatibility studies to support the choice of t
7、he frequency bands for RLANs. These studies are m ERC reports Nos. 1 and 8. The European Conference of Postal and Telecommunications Administrations, considering that a) CEPT has a long term objective to harmonise the use of radio frequencies throughout Europe; b) CEFT should develop frequency arran
8、gements in consultation with organisations developing standards for radio systems in order to make the most efficient use of the available spectrum; c) there is an increasing use of computer equipment, computer terminals and peripheral equipment by the business and industrial community; d) there is
9、a requirement to exchange information between such equipment through Local Area Networks e) existing LANs consist of equipment interconnected by cable resulting in a rigid hardware siruchue; f) LANs using radio (RLANs) would enable a more flexible approach to the installation, reconfiguration and us
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