
基本信息:
- 专利标题: PRECODING METHOD AND PRECODER FOR CROSS-POLARIZED ANTENNA ARRAY
- 专利标题(中):用于跨极化天线阵列的预测方法和预编码
- 申请号:US13977846 申请日:2012-01-03
- 公开(公告)号:US20130279619A1 公开(公告)日:2013-10-24
- 发明人: Jinhui Chen , Lu Wu , Yang Song , Hongwei Yang , Di Lv , Hao Liu
- 申请人: Jinhui Chen , Lu Wu , Yang Song , Hongwei Yang , Di Lv , Hao Liu
- 申请人地址: FR Paris
- 专利权人: ALCATEL LUCENT
- 当前专利权人: ALCATEL LUCENT
- 当前专利权人地址: FR Paris
- 优先权: CN201110002379.6 20110104
- 国际申请: PCT/IB12/00060 WO 20120103
- 主分类号: H04B7/04
- IPC分类号: H04B7/04
摘要:
The present invention provides a precoding method for a cross-polarized antenna array, the cross-polarized antenna array comprising a first group of coplanar polarized antennas and a second group of coplanar polarized antennas, the method comprising the following steps: generating,for at least one layer of data stream,a feedback codebook comprising a plurality of code-words; receiving a selection of the codeword in the feedback codebook; determining a corresponding codeword from the feedback codebook according to the received selection; generating a precoding matrix based on the determined codeword to precode the at least one layer of data stream; wherein each codeword in the feedback codebook comprises a first coefficient portion corresponding to a first group of coplanar polarized antennas and a second coefficient portion corresponding to the second group of coplanar polarized antennas, and there is a complex scaling relation between the coefficients in the first coefficient portion and the second coefficient portion corresponding to the same layer of data stream. Correspondingly, the present invention further provides a precoder for a cross-polarized antenna array.
摘要(中):
本发明提供了一种交叉极化天线阵列的预编码方法,所述交叉极化天线阵列包括第一组共面极化天线和第二组共面极化天线,所述方法包括以下步骤:至少产生 一层数据流,包括多个码字的反馈码本; 在所述反馈码本中接收所述码字的选择; 根据接收到的选择从反馈码本确定相应的码字; 基于所确定的码字生成预编码矩阵以对所述至少一个数据流层进行预编码; 其中所述反馈码本中的每个码字包括对应于第一组共面极化天线的第一系数部分和对应于所述第二组共面极化天线的第二系数部分,并且所述第一系数中的系数之间存在复数的缩放关系 部分和第二系数部分对应于同一层数据流。 相应地,本发明还提供了一种用于交叉极化天线阵列的预编码器。