发明授权
- 专利标题： Channel sounding in OFDMA system
- 专利标题（中）： OFDMA系统中的频道探测
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申请号： US11663946申请日： 2005-09-29
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公开(公告)号： US07924935B2公开(公告)日： 2011-04-12
- 发明人: Wen Tong , Jianglei Ma , Ming Jia , Peiying Zhu , Hang Zhang , Dongsheng Yu , Hua Xu
- 申请人： Wen Tong , Jianglei Ma , Ming Jia , Peiying Zhu , Hang Zhang , Dongsheng Yu , Hua Xu
- 申请人地址： CA St. Laurent, Quebec
- 专利权人： Nortel Networks Limited
- 当前专利权人： Nortel Networks Limited
- 当前专利权人地址： CA St. Laurent, Quebec
- 代理机构： Dinsmore & Shohl LLP
- 国际申请： PCT/CA2005/001474 WO 20050929
- 国际公布： WO2006/034577 WO 20060406
- 主分类号： H04B7/02
- IPC分类号： H04B7/02 ; H04L1/02 ; H04K1/10 ; H04L27/28
摘要：
Method and apparatus for determining a downlink channel response in an orthogonal frequency division multiplexing access (OFDMA) system. The method and apparatus uses the uplink quality indication channel for determining the downlink channel response, or uses round trip pilot relay channel sounding. The uplink quality indication channel may comprise modified mini-tiles. The subscriber station using round trip pilot relay channel sounding sends composite transponder pilots after receiving the DL pilots.
公开/授权文献
- US20080095223A1 Channel Sounding in Ofdma System 公开/授权日：2008-04-24
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