3.5 GHz固定无线接入市场令人关注

Remarkable 3.5 GHz Fixed Wireless Access Market

3.5GHz是国际电联推荐的用于固定无线接入的频段,系统构成一般包括基站、远端站和网管系统三大部分。3.5GHz固定无线接入可基于电路方式、IP方式、ATM方式等,提供的业务包括中高速因特网接入、局域网互连、VPN、租用线、IP电话/IP传真、视频会议、PSTN/ISDN等。中国2001年在5个城市首次进行了3.5GHz固定接入业务的招标,目前中标公司大都在提供业务。2002年年底信息产业部在32个城市再次进行3.5GHz频段的招标,激发了新一轮的竞争。

GHz is the frequency band for fixed wire-less access recommended by ITU.Gen erally,3.5GHz ac cess sys tem architecture include s base sta tion,remote sta tion and network management system.3.5GHz fixe d wireless ac cess can base on circuit mode,IP mode or ATM mode.The services i t can pro vide include high-speed In ternet ac cess,LAN interconnection,VPN, leased line,IP phone /IP fax,video conference,PSTN /ISDN,etc.In2001, 3.5GHz fixed wireless ac cess ser-vice has been bid in5cities and compa ni es winning atender are pro vid ing services.At the end of2002,MI I has in vited public bidding for3.5GHz service in32cities,which will in spire new round of competi tion.