发明授权
- 专利标题： Wireless communication system based on code spreading-orthogonal frequency division multiple access and smart antenna
- 专利标题（中）： 基于代码扩展 - 正交频分多址和智能天线的无线通信系统
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申请号： US12682441申请日： 2008-10-08
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公开(公告)号： US08174960B2公开(公告)日： 2012-05-08
- 发明人: Guanghan Xu , Hang Li , Jun Huang
- 申请人： Guanghan Xu , Hang Li , Jun Huang
- 申请人地址： CN Beijing
- 专利权人： Beijing Xinwei Telecom Technology, Inc.
- 当前专利权人： Beijing Xinwei Telecom Technology, Inc.
- 当前专利权人地址： CN Beijing
- 代理机构： Nixon Peabody LLP
- 代理商 Jeffrey L. Costellia
- 优先权： CN200710175703 20071010
- 国际申请： PCT/CN2008/072616 WO 20081008
- 国际公布： WO2009/049530 WO 20090423
- 主分类号： H04J11/00
- IPC分类号： H04J11/00
摘要：
A time division duplex wireless communication system based on Code Spreading-Orthogonal Frequency Division Multiple Access (CS-OFDMA) and a smart antenna includes: an antenna array and multichannel transceiver, a space processor, a demodulator, an L2 processor and a modulator. The CS-OFDMA system provided by the present invention combines synchronous CDMA technique and OFDMA technique, overcomes the severe ISI caused by spectrum-spreading by the conventional CDMA system while transmitting wideband data, effectively counteracts frequency-selective fading and inter-cell interference, and is beneficial to reliable transmission of narrowband voice and wideband data and also beneficial to co-frequency networking.
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