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1. 发明授权

US08861639B2 Method for determining precoding matrix and corresponding communication methods and devices 有权
标题翻译：用于确定预编码矩阵和相应的通信方法和装置的方法
公开(公告)号：US08861639B2
公开(公告)日：2014-10-14
申请号：US13822456
申请日：2011-08-24
申请人： Lu Wu , Jinhui Chen , Yang Song , Hongwei Yang , Di Lv , Hao Liu
发明人： Lu Wu , Jinhui Chen , Yang Song , Hongwei Yang , Di Lv , Hao Liu
IPC分类号： H04L27/00 , H04B7/06 , H04L25/03 , H04B7/04
CPC分类号： H04B7/0456 , H04B7/0426 , H04B7/0469 , H04B7/0617 , H04B7/0626 , H04B7/065 , H04L25/03343
摘要： A method for determining precoding matrix for the sub-band precoding in a transmitter with M transmitting antennas. The method includes determining an optimized first matrix W1 according to wideband and/or long-term channel properties, multiplying the optimized first matrix W1, with each second matrix W2, in a second codebook, to obtain a plurality of candidate precoding matrices, the second matrix W2 corresponds to frequency-selective and/or short-term channel properties; selecting an optimized one from the plurality of candidate preceding matrices for precoding the data to be transmitted, according to a frequency selection and/or a short-term channel state information. The amount of DFT beams may be increased to improve the spatial resolution; a diagonal matrix is involved in the first matrix W1; and phase adjustment is involved in the second matrix W2, so as to guarantee the adjusted phase is evenly distributed among the whole phase space.
摘要翻译：一种用于确定具有M个发射天线的发射机中的子带预编码的预编码矩阵的方法。该方法包括：根据宽带和/或长期信道特性，在第二码本中将优化的第一矩阵W1与每个第二矩阵W2相乘，以确定优化的第一矩阵W1，以获得多个候选预编码矩阵，第二矩阵W2对应于频率选择和/或短期信道特性; 根据频率选择和/或短期信道状态信息，从所述多个候选先前矩阵中选择优化的一个，用于对要发送的数据进行预编码。可以增加DFT光束的量以提高空间分辨率; 对角矩阵涉及第一矩阵W1; 并且第二矩阵W2中涉及相位调整，以保证调整后的相位在整个相位空间内均匀分布。

2. 发明授权

US08831126B2 Method and device for obtaining precoding matrix 有权
标题翻译：获取预编码矩阵的方法和装置
公开(公告)号：US08831126B2
公开(公告)日：2014-09-09
申请号：US13704071
申请日：2011-06-24
申请人： Lu Wu , Yang Song , Jinhui Chen , Hongwei Yang , Di Lv
发明人： Lu Wu , Yang Song , Jinhui Chen , Hongwei Yang , Di Lv
IPC分类号： H04B7/02 , H04B7/10 , H04B7/04 , H04L25/03
CPC分类号： H04B7/0456 , H04B7/0413 , H04B7/0469 , H04B7/0634 , H04B7/0639 , H04B7/065 , H04B7/10 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： The present invention provides a method and device for obtaining precoding matrix. A network apparatus comprises a plurality of groups of cross-polarized linear array antennas. The method comprises: obtaining first channel indicating information indicating a first code word; obtaining second channel indicating information indicating a second code word; determining the precoding matrix, according to the first channel indicating information and the second channel indicating information, the first code word and/or the second code word comprises phase shifts and/or amplitude differences among the plurality of groups of cross-polarized linear array antennas. Since the first code word and the second code word for determining the precoding matrix by the network apparatus comprise phase shifts and amplitude differences among cross-polarized linear array antennas, the phase shifts and amplitude differences among cross-polarized linear array antennas are considered when the network apparatus sends downlink data according to the precoding matrix, so as to be able to improve the receiving quality of the sent data, thereby improving the system performance effectively.
摘要翻译：本发明提供一种获取预编码矩阵的方法和装置。网络装置包括多组交叉极化线性阵列天线。该方法包括：获得指示第一码字的第一信道指示信息; 指示第二码字的第二频道指示信息; 根据第一信道指示信息和第二信道指示信息确定预编码矩阵，第一码字和/或第二码字包括多组交叉极化线性阵列天线之间的相移和/或幅度差异。由于用于由网络装置确定预编码矩阵的第一码字和第二码字包括交叉极化线性阵列天线之间的相移和幅度差，所以当交叉极化线性阵列天线的相移和幅度差异网络设备根据预编码矩阵发送下行链路数据，从而能够提高发送数据的接收质量，从而有效提高系统性能。

3. 发明授权

US08588799B2 Method and apparatus for processing downlink communication and corresponding assisting method and apparatus 有权
标题翻译：用于处理下行链路通信的方法和装置及相应的辅助方法和装置
公开(公告)号：US08588799B2
公开(公告)日：2013-11-19
申请号：US13505930
申请日：2009-11-04
申请人： Di Lv , Hongwei Yang , Jinhui Chen , Yang Song
发明人： Di Lv , Hongwei Yang , Jinhui Chen , Yang Song
IPC分类号： H04W72/00
CPC分类号： H04B7/0639 , H04B7/0452 , H04B7/0456 , H04B7/0482 , H04L5/0023 , H04L25/0204 , H04L25/021 , H04L25/0248 , H04L25/03955
摘要： A method and apparatus for processing downlink communication and a corresponding assisting method and apparatus are provided. According to an embodiment, a method for assisting a base station in processing downlink communication in a user equipment includes: estimating a downlink channel between the base station and the user equipment; determining a spatial correlation matrix between the base station and the user equipment according to the result of estimating the downlink channel; determining at least one pre-coding vector among a plurality of pre-stored pre-coding vectors based upon the spatial correlation matrix; and notifying the base station about the determined at least one pre-coding vector and spatial correlation matrix. The downlink communication processing disclosed herein improves the performance of a system, improves the average throughput and the throughput of an edge user of the multi-user MIMO system and has a wider applicability scope than the original codebook and feedback mechanism.
摘要翻译：提供了一种用于处理下行链路通信的方法和装置以及相应的辅助方法和装置。根据实施例，一种在用户设备中辅助基站处理下行链路通信的方法包括：估计基站与用户设备之间的下行链路信道; 根据估计下行链路信道的结果，确定基站与用户设备之间的空间相关矩阵; 基于所述空间相关矩阵，确定多个预先存储的预编码矢量中的至少一个预编码矢量; 以及向基站通知所确定的至少一个预编码向量和空间相关矩阵。这里公开的下行链路通信处理提高了系统的性能，提高了多用户MIMO系统的边缘用户的平均吞吐量和吞吐量，并且具有比原始码本和反馈机制更广泛的应用范围。

4. 发明申请

US20130028344A1 METHOD AND APPARATUS FOR INFORMATION FEEDBACK AND PRECODING 有权
标题翻译：信息反馈和预测的方法和装置
公开(公告)号：US20130028344A1
公开(公告)日：2013-01-31
申请号：US13639438
申请日：2010-04-07
申请人： Jinhui Chen , Hongwei Yang , Di Lv , Yang Song
发明人： Jinhui Chen , Hongwei Yang , Di Lv , Yang Song
IPC分类号： H04B7/02
CPC分类号： H04B7/0417 , H04B7/0421 , H04B7/0456 , H04B7/0478 , H04B7/0626 , H04B7/0634 , H04B7/0639
摘要： Methods and apparatuses for information feedback and precoding have been provided. A method for processing communication data at a user equipment in a wireless communication system may comprise: deriving a spatial correlation matrix R of multiple transmit antennas of a base station based on an obtained downlink channel transmission matrix H; transforming a precoding codebook F according to the spatial correlation matrix R; selecting a precoding matrix Fs based on the transformed precoding codebook; and feeding back information about the spatial correlation matrix R and information about the selected precoding matrix Fs to the base station. A method for data precoding at a base station in a wireless communication system may comprise: obtaining, from a user equipment, information about a spatial correlation matrix R of multiple transmit antennas of the base station and information about a precoding matrix Fs selected by the user equipment; determining a desired precoding matrix FR,s based on the obtained information and a precoding codebook; and precoding downlink data to be transmitted to the user equipment with the desired precoding matrix FR,s
摘要翻译：已经提供了用于信息反馈和预编码的方法和装置。一种用于在无线通信系统中的用户设备处理通信数据的方法可以包括：基于获得的下行链路信道传输矩阵H导出基站的多个发射天线的空间相关矩阵R. 根据空间相关矩阵R对预编码码本F进行变换; 基于经变换的预编码码本选择预编码矩阵Fs; 并将关于空间相关矩阵R的信息和关于所选择的预编码矩阵Fs的信息反馈给基站。在无线通信系统中的基站处的用于数据预编码的方法可以包括：从用户设备获得关于基站的多个发射天线的空间相关矩阵R的信息以及关于由用户选择的预编码矩阵F s的信息设备; 基于获得的信息和预编码码本确定期望的预编码矩阵FR; 并用所需的预编码矩阵FR，s对要发送给用户设备的下行链路数据进行预编码

5. 发明授权

US08964882B2 Method of determining precoding matrix and corresponding communication methods and devices 有权
标题翻译：确定预编码矩阵的方法和相应的通信方法和装置
公开(公告)号：US08964882B2
公开(公告)日：2015-02-24
申请号：US13704151
申请日：2011-06-24
申请人： Jinhui Chen , Lu Wu , Yang Song , Hongwei Yang , Di Lv
发明人： Jinhui Chen , Lu Wu , Yang Song , Hongwei Yang , Di Lv
IPC分类号： H04L27/04 , H04B7/04 , H04B7/06 , H04B7/10 , H04L25/03
CPC分类号： H04B7/0478 , H04B7/0469 , H04B7/0626 , H04B7/0639 , H04B7/065 , H04B7/10 , H04L25/03343 , H04L2025/03426 , H04L2025/03808
摘要： In order to improve the performance of the precoding scheme for closely-spaced cross-polarized CLA antennas, the invention proposes a new precoding codebook and precoding matrix. The invention also proposes a method for determining precoding matrix based on the new precoding codebook, and corresponding method and device for communicating by using this precoding matrix. The precoding codebook and matrix proposed in the invention has better performance.
摘要翻译：为了提高紧密间隔的交叉极化CLA天线的预编码方案的性能，本发明提出了一种新的预编码码本和预编码矩阵。本发明还提出了一种基于新的预编码码本来确定预编码矩阵的方法，以及通过使用该预编码矩阵进行通信的相应方法和装置。本发明提出的预编码码本和矩阵具有更好的性能。

6. 发明申请

US20130170578A1 METHOD FOR DETERMINING PRECODING MATRIX AND CORRESPONDING COMMUNICATION METHODS AND DEVICES 有权
标题翻译：用于确定预测矩阵的方法和相应的通信方法和设备
公开(公告)号：US20130170578A1
公开(公告)日：2013-07-04
申请号：US13822456
申请日：2011-08-24
申请人： Lu Wu , Jinhui Chen , Yang Song , Hongwei Yang , Di Lv , Hao Liu
发明人： Lu Wu , Jinhui Chen , Yang Song , Hongwei Yang , Di Lv , Hao Liu
IPC分类号： H04B7/04
CPC分类号： H04B7/0456 , H04B7/0426 , H04B7/0469 , H04B7/0617 , H04B7/0626 , H04B7/065 , H04L25/03343
摘要： A method for determining precoding matrix for the sub-band precoding in a transmitter, wherein the transmitter has M transmitting antennas, and the method comprises: a. determining an optimized first matrix W1 according to wideband and/or long-term channel properties, with the first matrix W1 corresponding to wideband and/or long-term channel properties; b. multiplying the optimized first matrix W1, with each second matrix W2, in a second codebook, so as to obtain a plurality of candidate precoding matrices, the second matrix W2 corresponds to frequency-selective and/or short-term channel properties; c. selecting an optimized one from the plurality of candidate preceding matrices for precoding the data to be transmitted, according to a frequency selection and/or a short-term channel state information; characterized in that, the amount of DFT beams is increased to improve the spatial resolution; a diagonal matrix is involved in said first matrix W1; and phrase adjustment is involved in said second matrix W2, so as to guarantee the adjusted phrase is evenly distributed among the whole phrase space.
摘要翻译：一种用于确定发射机中的子带预编码的预编码矩阵的方法，其中所述发射机具有M个发射天线，并且所述方法包括：a。根据宽带和/或长期信道特性确定优化的第一矩阵W1，其中第一矩阵W1对应于宽带和/或长期信道特性; b。将优化的第一矩阵W1与每个第二矩阵W2相乘在第二码本中，以获得多个候选预编码矩阵，第二矩阵W2对应于频率选择和/或短期信道属性; C。根据频率选择和/或短期信道状态信息，从所述多个候选前置矩阵中选择优化的一个，用于对要发送的数据进行预编码; 其特征在于，增加DFT光束的量以提高空间分辨率; 所述第一矩阵W1中涉及对角矩阵; 并且在所述第二矩阵W2中涉及短语调整，以便保证所调整的短语在整个短语空间中均匀分布。

7. 发明授权

US09042474B2 Method and apparatus for information feedback and precoding 有权
标题翻译：用于信息反馈和预编码的方法和装置
公开(公告)号：US09042474B2
公开(公告)日：2015-05-26
申请号：US13639438
申请日：2010-04-07
申请人： Jinhui Chen , Hongwei Yang , Di Lv , Yang Song
发明人： Jinhui Chen , Hongwei Yang , Di Lv , Yang Song
IPC分类号： H04B7/04 , H04B7/06
CPC分类号： H04B7/0417 , H04B7/0421 , H04B7/0456 , H04B7/0478 , H04B7/0626 , H04B7/0634 , H04B7/0639
摘要： Methods and apparatuses for information feedback and precoding have been provided. A method for processing communication data at a user equipment in a wireless communication system may comprise: deriving a spatial correlation matrix R of multiple transmit antennas of a base station based on an obtained downlink channel transmission matrix H; transforming a precoding codebook F according to the spatial correlation matrix R; selecting a precoding matrix Fs based on the transformed precoding codebook; and feeding back information about the spatial correlation matrix R and information about the selected precoding matrix Fs to the base station. A method for data precoding at a base station in a wireless communication system may comprise: obtaining, from a user equipment, information about a spatial correlation matrix R of multiple transmit antennas of the base station and information about a precoding matrix Fs selected by the user equipment; determining a desired precoding matrix FR,s based on the obtained information and a precoding codebook; and precoding downlink data to be transmitted to the user equipment with the desired precoding matrix FR,s.
摘要翻译：已经提供了用于信息反馈和预编码的方法和装置。一种用于在无线通信系统中的用户设备处理通信数据的方法可以包括：基于获得的下行链路信道传输矩阵H导出基站的多个发射天线的空间相关矩阵R. 根据空间相关矩阵R对预编码码本F进行变换; 基于经变换的预编码码本选择预编码矩阵Fs; 并将关于空间相关矩阵R的信息和关于所选择的预编码矩阵Fs的信息反馈给基站。在无线通信系统中的基站处的用于数据预编码的方法可以包括：从用户设备获得关于基站的多个发射天线的空间相关矩阵R的信息以及关于由用户选择的预编码矩阵F s的信息设备; 基于获得的信息和预编码码本确定期望的预编码矩阵FR; 并用所需的预编码矩阵FR，s对要发送给用户设备的下行链路数据进行预编码。

8. 发明申请

US20130279619A1 PRECODING METHOD AND PRECODER FOR CROSS-POLARIZED ANTENNA ARRAY 有权
标题翻译：用于跨极化天线阵列的预测方法和预编码
公开(公告)号：US20130279619A1
公开(公告)日：2013-10-24
申请号：US13977846
申请日：2012-01-03
申请人： Jinhui Chen , Lu Wu , Yang Song , Hongwei Yang , Di Lv , Hao Liu
发明人： Jinhui Chen , Lu Wu , Yang Song , Hongwei Yang , Di Lv , Hao Liu
IPC分类号： H04B7/04
CPC分类号： H04B7/0478 , H04B7/0469 , H04B7/0634 , H04B7/10
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.
摘要翻译：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。

9. 发明申请

US20130089165A1 METHOD OF DETERMINING PRECODING MATRIX AND CORRESPONDING COMMUNICATION METHODS AND DEVICES 有权
标题翻译：确定预测矩阵的方法和相应的通信方法和设备
公开(公告)号：US20130089165A1
公开(公告)日：2013-04-11
申请号：US13704151
申请日：2011-06-24
申请人： Jinhui Chen , Lu Wu , Yang Song , Hongwei Yang , Di Lv
发明人： Jinhui Chen , Lu Wu , Yang Song , Hongwei Yang , Di Lv
IPC分类号： H04B7/04
CPC分类号： H04B7/0478 , H04B7/0469 , H04B7/0626 , H04B7/0639 , H04B7/065 , H04B7/10 , H04L25/03343 , H04L2025/03426 , H04L2025/03808
摘要： In order to improve the performance of the precoding scheme for closely-spaced cross-polarized CLA antennas, the invention proposes a new precoding codebook and precoding matrix. The invention also proposes a method for determining precoding matrix based on the new precoding codebook, and corresponding method and device for communicating by using this precoding matrix. The precoding codebook and matrix proposed in the invention has better performance.
摘要翻译：为了提高紧密间隔的交叉极化CLA天线的预编码方案的性能，本发明提出了一种新的预编码码本和预编码矩阵。本发明还提出了一种基于新的预编码码本来确定预编码矩阵的方法，以及通过使用该预编码矩阵进行通信的相应方法和装置。本发明提出的预编码码本和矩阵具有更好的性能。

10. 发明申请

US20120214500A1 METHOD AND APPARATUS FOR PROCESSING DOWNLINK COMMUNICATION AND CORRESPONDING ASSISTING METHOD AND APPARATUS 有权
标题翻译：用于处理下行链路通信和相关辅助方法和设备的方法和装置
公开(公告)号：US20120214500A1
公开(公告)日：2012-08-23
申请号：US13505930
申请日：2009-11-04
申请人： Di Lv , Hongwei Yang , Jinhui Chen , Yang Song
发明人： Di Lv , Hongwei Yang , Jinhui Chen , Yang Song
IPC分类号： H04W72/04
CPC分类号： H04B7/0639 , H04B7/0452 , H04B7/0456 , H04B7/0482 , H04L5/0023 , H04L25/0204 , H04L25/021 , H04L25/0248 , H04L25/03955
摘要： The invention provides a method and apparatus for processing downlink communication and a corresponding assisting method and apparatus. According to an embodiment of the invention, there is provided a method for assisting a base station in processing downlink communication in a user equipment, which includes the steps of: estimating a downlink channel between the base station and the user equipment; determining a spatial correlation matrix between the base station and the user equipment according to the result of estimating the downlink channel; determining at least one pre-coding vector among a plurality of pre-stored pre-coding vectors based upon the spatial correlation matrix; and notifying the base station about the determined at least one pre-coding vector and spatial correlation matrix. The invention improves the performance of a system, improves the average throughput and the throughput of an edge user of the multi-user MIMO system and has a wider applicability scope then the original codebook and feedback mechanism.
摘要翻译：本发明提供了一种用于处理下行链路通信的方法和装置以及相应的辅助方法和装置。根据本发明的实施例，提供了一种用于辅助基站处理用户设备中的下行链路通信的方法，包括以下步骤：估计基站与用户设备之间的下行链路信道; 根据估计下行链路信道的结果，确定基站与用户设备之间的空间相关矩阵; 基于所述空间相关矩阵，确定多个预先存储的预编码矢量中的至少一个预编码矢量; 以及向基站通知所确定的至少一个预编码向量和空间相关矩阵。本发明改进了系统的性能，提高了多用户MIMO系统的边缘用户的平均吞吐量和吞吐量，并具有更广泛的应用范围，然后是原始码本和反馈机制。

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