发明名称 |
METHOD AND DEVICE FOR ESTIMATING CHANNEL IN MULIPLE-RECEIVING ANTENNA SYSTEM |
摘要 |
Disclosed are a method and device for estimating a channel in a multiple-receiving antenna system. The method comprises: a channel estimation is performed on a received pilot signal by using a least square channel estimation algorithm to obtain an estimation value HLS; an N′-dimensional channel autocorrelation matrix formula (I) and a channel frequency domain autocorrelation matrix Ri from a transmitting antenna i to any receiving antenna are acquired, and a weight matrix W which is descrambled and denoised is calculated, wherein i=1, 2, . . . , NT, and NT is the number of antennae at a transmitting end; the estimation value HLS is corrected by using the weight matrix W to obtain a corrected estimation value HP-LMMSE. The method and device of the disclosure may obtain the performance as close as possible to the LMMSE technology through less prior statistic information, and have a simple implementation manner. |
申请公布号 |
US2015236872(A1) |
申请公布日期 |
2015.08.20 |
申请号 |
US201314421783 |
申请日期 |
2013.08.16 |
申请人 |
ZTE CORPORATION |
发明人 |
Xiong Gaocai;Qin Hongfeng;Xiao Yue;Zhao Hongzhi |
分类号 |
H04L25/02;H04L27/26;H04B7/04;H04L5/00 |
主分类号 |
H04L25/02 |
代理机构 |
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代理人 |
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主权项 |
1. A method for estimating a channel in a multiple-receiving antenna system, comprising:
performing channel estimation on a received pilot signal by using a least square channel estimation algorithm to obtain an estimation value HLS; acquiring an N′-dimensional channel autocorrelation matrix R, and a channel frequency domain autocorrelation matrix Ri from a transmitting antenna i to any receiving antenna to calculate a weight matrix W which is descrambled and denoised, wherein i=1,2, . . . , NT and NT is the number of antennae at a transmitting end; and correcting the estimation value HLS by using the weight matrix W to obtain a corrected estimation value HP-LMMSE. |
地址 |
Shenzhen, Guangdong Province CN |