公开(公告)号：US09391681B2

公开(公告)日：2016-07-12

申请号：US14937392

申请日：2015-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04L23/00 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04L5/0048

Abstract: The present invention provides a method for determining a precoding matrix indicator, user equipment, and a base station. The method includes: receiving a first reference signal set sent by a base station; determining, based on the first reference signal set, one or more intermediate matrices, and reporting, to the base station, a first index used to indicate the intermediate matrix; receiving a second reference signal set sent by the base station; and determining, based on the second reference signal set, a precoding matrix, and reporting, to the base station, a precoding matrix indicator used to indicate the precoding matrix, where the precoding matrix is a product W of two matrices W1 and W2, and W=W1W2, where W1 is a block diagonal matrix, W1=diag{X1,X2}. In this way, transmission performance of an active antenna system can be improved.

Abstract translation: 本发明提供了一种用于确定预编码矩阵指示符，用户设备和基站的方法。 该方法包括：接收由基站发送的第一参考信号集; 基于所述第一参考信号集合确定一个或多个中间矩阵，并向所述基站报告用于指示所述中间矩阵的第一索引; 接收由所述基站发送的第二参考信号组; 以及基于所述第二参考信号组确定预编码矩阵，并向所述基站报告用于指示所述预编码矩阵的预编码矩阵指示符，其中所述预编码矩阵是两个矩阵W1和W2的乘积W，以及 W = W1W2，其中W1是块对角矩阵，W1 = diag {X1，X2}。 以这种方式，可以提高有源天线系统的传输性能。

公开(公告)号：US20160105265A1

公开(公告)日：2016-04-14

申请号：US14973975

申请日：2015-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Yongxing Zhou

IPC: H04L5/00 ,  H04L1/00 ,  H04B17/309

CPC classification number: H04L5/0048 ,  H04B17/309 ,  H04L1/0026 ,  H04L5/0023

Abstract: A method and an apparatus for measuring communication quality are disclosed. The method includes: acquiring reference signal resource configuration information, where the reference signal resource configuration information at least includes: reference signal port configuration information, and reference signal power information of at least one port group; or the reference signal resource configuration information at least includes: reference signal port configuration information, and a ratio of a power of a data channel in at least one port group to a power of a reference signal; and sending the acquired reference signal resource configuration information to user equipment. Therefore, in a multi-antenna system, accurate signal quality measurement information is acquired, or more accurate channel state information is acquired

Abstract translation: 公开了一种用于测量通信质量的方法和装置。 该方法包括：获取参考信号资源配置信息，其中参考信号资源配置信息至少包括参考信号端口配置信息和至少一个端口组的参考信号功率信息; 或参考信号资源配置信息至少包括：参考信号端口配置信息，以及至少一个端口组中的数据信道的功率与参考信号的功率的比率; 并将所获取的参考信号资源配置信息发送给用户设备。 因此，在多天线系统中，获取准确的信号质量测量信息，或获取更准确的信道状态信息

公开(公告)号：US20160065279A1

公开(公告)日：2016-03-03

申请号：US14937392

申请日：2015-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04L5/0048

Abstract: The present invention provides a method for determining a precoding matrix indicator, user equipment, and a base station. The method includes: receiving a first reference signal set sent by a base station; determining, based on the first reference signal set, one or more intermediate matrices, and reporting, to the base station, a first index used to indicate the intermediate matrix; receiving a second reference signal set sent by the base station; and determining, based on the second reference signal set, a precoding matrix, and reporting, to the base station, a precoding matrix indicator used to indicate the precoding matrix, where the precoding matrix is a product W of two matrices W1 and W2, and W=W1W2, where W1 is a block diagonal matrix, W1=diag{X1,X2}. In this way, transmission performance of an active antenna system can be improved.

Abstract translation: 本发明提供了一种用于确定预编码矩阵指示符，用户设备和基站的方法。 该方法包括：接收由基站发送的第一参考信号集; 基于所述第一参考信号集合确定一个或多个中间矩阵，并向所述基站报告用于指示所述中间矩阵的第一索引; 接收由所述基站发送的第二参考信号组; 以及基于所述第二参考信号集合确定预编码矩阵，并向所述基站报告用于指示所述预编码矩阵的预编码矩阵指示符，其中所述预编码矩阵是两个矩阵W1和W2的乘积W，以及 W = W1W2，其中W1是块对角矩阵，W1 = diag {X1，X2}。 以这种方式，可以提高有源天线系统的传输性能。

公开(公告)号：US09258044B2

公开(公告)日：2016-02-09

申请号：US14844714

申请日：2015-09-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming Zhang ,  Qiang Wu ,  Jianghua Liu ,  Jianguo Wang

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04B7/0639 ,  H04B7/0691 ,  H04L1/0026

Abstract: The present disclosure provides a method for feeding back a precoding matrix indicator, a receive end and a transmit end, where the method includes: selecting, by a receive end, a precoding matrix W from a codebook based on a reference signal, where W ∈ [ X 1 ⁡ ( θ 1 ) X 2 ⁡ ( θ 2 , φ n ) ] , the θ1 and the θ2 indicate a phase difference of weighted values for signal transmission between two neighboring antennas in a first antenna group of a transmit end and a phase difference of weighted values for signal transmission between two neighboring antennas in a second antenna group of the transmit end, the φn indicates a phase difference of weighted values for signal transmission between the first antenna group and the second antenna group, where the signal transmission between the first antenna group and the second antenna group is for a same transmission layer, φ n = ⅇ j ⁢ ⁢ 2 ⁢ π ⁢ ⁢ n M , and sending, by the receive end, a precoding matrix indicator PMI to the transmit end.

Abstract translation: 本公开提供了一种用于反馈预编码矩阵指示符，接收端和发送端的方法，其中该方法包括：基于参考信号从码本中选择预编码矩阵W，其中W∈ [X 1⁡（＆thetas; 1）X 2⁡（＆thetas; 2，＆phgr; n）]，第一个天线中的两个相邻天线之间的信号传输的加权值的相位差 发送端的第二天线组中的两个相邻天线之间的信号传输的加权值的发送端组和相位差表示第一天线组和第二天线组之间的信号传输的加权值的相位差 第二天线组，其中第一天线组和第二天线组之间的信号传输用于相同的传输层， n =ⅇj⁢2＆pgr; ，并且由接收端向发送端发送预编码矩阵指示符PMI。

公开(公告)号：US09252992B2

公开(公告)日：2016-02-02

申请号：US14149439

申请日：2014-01-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongxing Zhou ,  Jianguo Wang

IPC: H04L27/00 ,  H04L25/03 ,  H04L1/06 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/10

CPC classification number: H04L25/03923 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0636 ,  H04B7/0639 ,  H04B7/0665 ,  H04B7/0842 ,  H04B7/10 ,  H04L1/06

Abstract: Embodiments of the present invention provide a method, an apparatus and a system for multi-antenna transmission, wherein a third precoding matrix determined by a sending end device is a function of a first precoding matrix and a second precoding matrix. That the first precoding matrix has a block diagonal structure and that sub-matrices corresponding to two blocks are Hermitian matrices enable the above-mentioned third precoding matrix to match with a transmit spatial autocorrelation matrix of a cross-polarized antenna or a distributed antenna, thereby enhancing precoding performance and improving system throughput effectively.

Abstract translation: 本发明的实施例提供了一种用于多天线传输的方法，装置和系统，其中由发送端设备确定的第三预编码矩阵是第一预编码矩阵和第二预编码矩阵的函数。 第一预编码矩阵具有块对角结构，并且对应于两个块的子矩阵是Hermitian矩阵，使得上述第三预编码矩阵能够与交叉极化天线或分布式天线的发射空间自相关矩阵匹配，由此 提高预编码性能，有效提高系统吞吐量。

公开(公告)号：US20150249961A1

公开(公告)日：2015-09-03

申请号：US14715037

申请日：2015-05-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04W52/24 ,  H04B7/06 ,  H04L1/00 ,  H04W72/04 ,  H04W24/04

CPC classification number: H04W52/244 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0665 ,  H04B17/309 ,  H04L1/0023 ,  H04L5/00 ,  H04W24/04 ,  H04W36/0083 ,  H04W72/0426

Abstract: Embodiments of the present application provide an access method and device. In the embodiments of the present application, a terminal obtains, according to reference signals sent by a first transmission point and a second transmission point and a first precoding matrix, quality information of the reference signals after a channel corresponding to each transmission point is precoded, so that the terminal is capable of obtaining quality information of precoded reference signals more accurately and the first transmission point switches the terminal to an appropriate second transmission point, thereby implementing flow distribution between all transmission points and improving access reliability of the terminal.

Abstract translation: 本申请的实施例提供一种访问方法和设备。 在本申请的实施例中，终端根据由第一传输点和第二传输点和第一预编码矩阵发送的参考信号，获得对与每个传输点对应的信道之后的参考信号的质量信息进行预编码， 使得终端能够更精确地获得预编码参考信号的质量信息，并且第一传输点将终端切换到适当的第二传输点，从而实现所有传输点之间的流量分配并提高终端的接入可靠性。

公开(公告)号：US20150098516A1

公开(公告)日：2015-04-09

申请号：US14569522

申请日：2014-12-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/04

CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/065 ,  H04L25/03949

Abstract: The present invention relates to a method for determining a precoding matrix indicator, a user equipment UE, a base station eNB, and a system. The method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of two matrices W1 and W2, where W1 is a block diagonal matrix, where each block matrix is a Kronecker product of a matrix Ai and a matrix Bi; and sending a precoding matrix indicator PMI to the base station, where the PMI corresponds to the selected precoding matrix, so that the base station obtains the precoding matrix according to the PMI.

Abstract translation: 本发明涉及一种用于确定预编码矩阵指示符的方法，用户设备UE，基站eNB和系统。 该方法包括：接收由基站发送的参考信号; 基于参考信号，从码本中选择预编码矩阵，其中包括在码本中的预编码矩阵W是两个矩阵W1和W2的乘积，其中W1是块对角矩阵，其中每个块矩阵是克罗内克积 的矩阵Ai和矩阵Bi; 并向基站发送预编码矩阵指示符PMI，其中PMI对应于所选择的预编码矩阵，使得基站根据PMI获得预编码矩阵。

公开(公告)号：US20130064207A1

公开(公告)日：2013-03-14

申请号：US13673562

申请日：2012-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Xiaobo Chen ,  Weijun Sun

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04B7/0456 ,  H04L1/0031 ,  H04L25/03343 ,  H04W72/0413

Abstract: A method and an apparatus for transmitting and receiving precoding information are disclosed. The method can be implemented in a communication system, wherein the communication system includes a terminal and a data transmitting apparatus in communication with the terminal, a system bandwidth of the communication system is divided into at least one bandwidth part (BP) and each BP comprises at least one subband. The method includes: selecting, by the terminal, a subband within a first BP of the at least one BP according to a preset criterion or a predefined rule; obtaining, by the terminal, precoding information of the subband selected within the first BP; and transmitting, by the terminal, the precoding information of the subband selected within the first BP to the data transmitting apparatus.

Abstract translation: 公开了一种用于发送和接收预编码信息的方法和装置。 该方法可以在通信系统中实现，其中通信系统包括与终端通信的终端和数据发送装置，通信系统的系统带宽被划分为至少一个带宽部分（BP），并且每个BP包括 至少一个子带。 该方法包括：根据预设标准或预定规则，由终端选择至少一个BP的第一BP内的子带; 由终端获得在第一BP内选择的子带的预编码信息; 以及由所述终端将所述第一BP内选择的子带的预编码信息发送到所述数据发送装置。

公开(公告)号：US12089230B2

公开(公告)日：2024-09-10

申请号：US18329501

申请日：2023-06-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu Zhang ,  Jianguo Wang ,  Lixia Xue ,  Zheng Chen

IPC: H04W72/23 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/27 ,  H04W80/08

CPC classification number: H04W72/23 ,  H04L5/0007 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/27 ,  H04W80/08

Abstract: A control information transmission method, apparatus, and systems are disclosed. An example method includes: determining configuration information of a control channel, wherein the configuration information comprises at least one of frequency domain information or time domain information, the at least one of frequency domain information or time domain information indicates a time-frequency resource occupied by the control channel, and the configuration information further comprises indication information indicating a quantity of at least one resource element set, wherein the time-frequency resource occupied by the control channel comprises the at least one resource element set; mapping control information to one or more of the at least one resource element set based on the configuration information; sending the configuration information to a terminal device; and sending the control information to the terminal device.

公开(公告)号：US11831379B2

公开(公告)日：2023-11-28

申请号：US17873580

申请日：2022-07-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Leiming Zhang

IPC: H04B7/06 ,  H04N19/124 ,  G06F17/16 ,  H04B7/0413

CPC classification number: H04B7/0626 ,  H04B7/0634 ,  H04B7/0639 ,  G06F17/16 ,  H04B7/0413 ,  H04N19/124

Abstract: The present disclosure relates to methods for feeding back channel state information, user equipment, and base stations. One example method includes receiving a reference signal sent by a base station, selecting a precoding matrix W from a codebook according to the reference signal, where a column vector of the precoding matrix W may be expressed as α[vejϕv]T, v=[1 ejθ], and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the precoding matrix W.