发明申请
- 专利标题: METHOD AND DEVICE FOR FILTERING CHANNEL ESTIMATION RESULT IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING
- 专利标题(中): 正交频分多路复用过滤通道估计结果的方法与装置
-
申请号: US13132782申请日: 2009-09-03
-
公开(公告)号: US20110228884A1公开(公告)日: 2011-09-22
- 发明人: Ning Qiu , Qiang Li , Li Chen , Nanshan Cao , Tao Zhang , Yueyi You
- 申请人: Ning Qiu , Qiang Li , Li Chen , Nanshan Cao , Tao Zhang , Yueyi You
- 申请人地址: CN Shenzhen Guangdong Province
- 专利权人: ZTE Corporation
- 当前专利权人: ZTE Corporation
- 当前专利权人地址: CN Shenzhen Guangdong Province
- 优先权: CN200810178929.8 20081205
- 国际申请: PCT/CN2009/073740 WO 20090903
- 主分类号: H04B1/10
- IPC分类号: H04B1/10
摘要:
The invention provides a method and device for filtering orthogonal frequency division multiplexing (OFDM) channel estimate result, to solve the problems in the prior art that for channel estimate result filtering the realization is complex or the performance is poor. By embodiments the following method is described: transforming time domain synchronous symbols received by the terminal equipment to frequency domain synchronous symbols; computing frequency domain impulse response sequences based on the frequency domain synchronous symbols; adjusting least mean square (LMS) adaptive filter coefficients based on the frequency domain impulse response sequences; obtaining coefficients of the data symbol channel estimate result frequency domain filter based on the coefficients obtained from said adjusting; filtering the OFDM channel estimate result by using the data symbol channel estimate result frequency domain filter. The corresponding device is disclosed by the embodiments. There is less computation, simpler realization and better filtering performance provided with the OFDM channel estimate result frequency domain filter obtained from the technical solution of the present invention.
信息查询