发明申请
US20070280336A1 Constrained Optimization Based Mimo Lmmse-Sic Receiver for Cdma Downlink
审中-公开
用于Cdma下行链路的基于Mimo Lmmse-Sic接收器的约束优化
- 专利标题： Constrained Optimization Based Mimo Lmmse-Sic Receiver for Cdma Downlink
- 专利标题（中）： 用于Cdma下行链路的基于Mimo Lmmse-Sic接收器的约束优化
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申请号： US10590671申请日： 2005-02-23
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公开(公告)号： US20070280336A1公开(公告)日： 2007-12-06
- 发明人: Jianzhong Zhang , Balaji Raghothaman , Giridhar Mandyam
- 申请人： Jianzhong Zhang , Balaji Raghothaman , Giridhar Mandyam
- 申请人地址： FI ESPOO, FINLAND 02150
- 专利权人： NOKIA CORPORATION
- 当前专利权人： NOKIA CORPORATION
- 当前专利权人地址： FI ESPOO, FINLAND 02150
- 国际申请： PCT/US05/06132 WO 20050223
- 主分类号： H04Q7/00
- IPC分类号： H04Q7/00
摘要：
A system according to embodiments of this invention provide a multiple transmit antenna (117-1 . . . M), multiple receive antenna (121-1 . . . N) (MIMO) receiver (125) design for the communication downlinks such as those used in CDMA technology. Two algorithms referred to as the MIMO LMMSE-FFT and MIMO LMMSE-SIC (Successive Interference Cancellation) algorithms, are described in detail. In embodiments of the invention, the interference cancellation step is achieved without the impractical assumption of the knowledge of all the active Walsh codes in the systems, unlike many other interference cancellation based algorithms found in the literature.
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