发明授权
- 专利标题: Successive interference cancellation receiver processing with selection diversity
- 专利标题(中): 连续干扰消除接收机处理与选择分集
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申请号: US12257200申请日: 2008-10-23
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公开(公告)号: US07890144B2公开(公告)日: 2011-02-15
- 发明人: Anand D. Subramaniam , Tamer Kadous
- 申请人: Anand D. Subramaniam , Tamer Kadous
- 申请人地址: US CA San Diego
- 专利权人: Qualcomm Incorporated
- 当前专利权人: Qualcomm Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 Peng Zhu; Stanton Braden
- 主分类号: H04B1/38
- IPC分类号: H04B1/38 ; H04B17/00
摘要:
Techniques are provided to support successive interference cancellation (SIC) receiver processing with selection diversity whereby each of NT transmit antennas may be turned on or off. One symbol stream may be transmitted from each transmit antenna. A SIC receiver recovers the transmitted symbol streams in a specific order. Up to NT! orderings are evaluated. For each ordering, NT post-detection SNRs are obtained for NT transmit antennas and used to determine NT data rates, where the data rate is zero if the post-detection SNR is worse than a minimum required SNR. An overall data rate is computed for each ordering based on the NT data rates. The ordering with the highest overall data rate is selected for use. Up to NT symbol streams are processed at the data rates for the selected ordering and transmitted. The transmitted symbol streams are recovered in accordance with the selected ordering.
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