发明授权
- 专利标题: Equalizer in a wireless communication system
- 专利标题(中): 均衡器在无线通信系统中
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申请号: US12977748申请日: 2010-12-23
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公开(公告)号: US08160128B2公开(公告)日: 2012-04-17
- 发明人: Gokhan Mergen , Parvathanathan Subrahmanya , Nitin Kasturi , Rajesh Sundaresan
- 申请人: Gokhan Mergen , Parvathanathan Subrahmanya , Nitin Kasturi , Rajesh Sundaresan
- 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 Larry Moskowitz; Sayed H. Beladi
- 主分类号: H04B1/10
- IPC分类号: H04B1/10
摘要:
Techniques for performing equalization at a receiver are described. In an aspect, equalization is performed by sub-sampling an over-sampled input signal to obtain multiple sub-sampled signals. An over-sampled channel impulse response estimate is derived and sub-sampled to obtain multiple sub-sampled channel impulse response estimates. At least one set of equalizer coefficients is derived based on at least one sub-sampled channel impulse response estimate. At least one sub-sampled signal is filtered with the at least one set of equalizer coefficients to obtain at least one output signal. One sub-sampled signal (e.g., with largest energy) may be selected and equalized based on a set of equalizer coefficients derived from an associated sub-sampled channel impulse response estimate. Alternatively, the multiple sub-sampled signals may be equalized based on multiple sets of equalizer coefficients, which may be derived separately or jointly. The equalizer coefficients may be derived in the time domain or frequency domain.
公开/授权文献
- US20110090946A1 EQUALIZER IN A WIRELESS COMMUNICATION SYSTEM 公开/授权日:2011-04-21