公开(公告)号：US09438328B2

公开(公告)日：2016-09-06

申请号：US14753490

申请日：2015-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Leiming Zhang

IPC: H04B7/06

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

Abstract: Embodiments of the present invention provide a method for feeding back channel state information, a user equipment, and a base station, to improve feedback precision of channel state information. The 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[v ejφv]T, v=[1 ejθ]; and sending a precoding matrix indicator PMI to the base station, where the PMI is corresponding to the selected precoding matrix W. The present invention may further improve quantization precision and achieve balance between overheads and the quantization precision. The base station performs precoding on a sent signal according to a fed back precoding matrix indicator, which can improve precoding precision, thereby improving a data transmission rate and system throughput.

Abstract translation: 本发明的实施例提供了一种用于反馈信道状态信息，用户设备和基站的方法，以提高信道状态信息的反馈精度。 该方法包括：接收由基站发送的参考信号; 根据参考信号从码本中选择预编码矩阵W，其中预编码矩阵W的列向量可以表示为α[vejφv] T，v = [1ejθ]; 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W.本发明可以进一步提高量化精度并实现开销和量化精度之间的平衡。 基站根据反馈预编码矩阵指示符对发送的信号进行预编码，这可以提高预编码精度，从而提高数据传输速率和系统吞吐量。

公开(公告)号：US20160043789A1

公开(公告)日：2016-02-11

申请号：US14923019

申请日：2015-10-26

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.

公开(公告)号：US09203491B2

公开(公告)日：2015-12-01

申请号：US14569522

申请日：2014-12-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/04 ,  H04B7/06 ,  H04L25/03

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：US20150318973A1

公开(公告)日：2015-11-05

申请号：US14754273

申请日：2015-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Qiang Wu

IPC: H04L5/00 ,  H04B7/06 ,  H04W24/06

CPC classification number: H04L5/0092 ,  H04B7/0626 ,  H04B17/318 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0094 ,  H04W24/06

Abstract: A reference signal measurement method, a reference signal sending method, a user equipment, and a base station are provided. According to solutions in the embodiments of the present application, a user equipment determines reference signal resource configuration, which includes reference signal port configuration, reference signal subframe configuration, and reference signal configuration, and a quantity of ports configured in the reference signal port configuration is N; receives a reference signal according to the reference signal resource configuration; and performs measurement based on the received reference signal to obtain channel state information and/or signal quality information. In the embodiments of the present invention, a quantity of ports configured in the reference signal port configuration is N; and a quantity of supported ports may vary with different values of N.

Abstract translation: 提供了参考信号测量方法，参考信号发送方法，用户设备和基站。 根据本申请实施例的解决方案，用户设备确定参考信号资源配置，其包括参考信号端口配置，参考信号子帧配置和参考信号配置，并且在参考信号端口配置中配置的端口数量 N; 根据参考信号资源配置接收参考信号; 并且基于接收的参考信号进行测量，以获得信道状态信息和/或信号质量信息。 在本发明的实施例中，以参考信号端口配置配置的端口数量为N; 并且一些支持的端口可以随着N的不同值而变化。

公开(公告)号：US20140133601A1

公开(公告)日：2014-05-15

申请号：US14149439

申请日：2014-01-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongxing Zhou ,  Jianguo Wang

IPC: H04L25/03 ,  H04B7/04

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：US20140119228A1

公开(公告)日：2014-05-01

申请号：US14149499

申请日：2014-01-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Xingqing Cheng ,  Yongxing Zhou

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04W16/26 ,  H04W24/10 ,  H04W84/047

Abstract: The present invention provides a method for configuring a reference signal, a UE, and an eNB. The method includes: determining, by a UE, a reference signal configuration priority set, and sending information of the reference signal configuration priority set to an eNB; and receiving, by the UE, a reference signal configuration measurement set sent by the eNB, where the reference signal configuration measurement set is configured by the eNB according to the information of the reference signal configuration priority set, and the reference signal configuration measurement set is used for the UE to measure and feed back channel state information. In embodiments of the present invention, a reference signal configuration matched with an optimal actual channel of a UE can be selected when an RRH or a base station is geographically separated, so that the UE can acquire a good channel condition.

Abstract translation: 本发明提供了一种用于配置参考信号，UE和eNB的方法。 该方法包括：由UE确定参考信号配置优先级集合，并将设置的参考信号配置优先级信息发送给eNB; 并由UE接收由eNB发送的参考信号配置测量集，其中参考信号配置测量集由eNB根据参考信号配置优先级设置的信息配置，并且参考信号配置测量集合是 用于UE测量和反馈信道状态信息。 在本发明的实施例中，当RRH或基站在地理上分离时，可以选择与UE的最佳实际信道匹配的参考信号配置，使得UE可以获得良好的信道条件。

公开(公告)号：US11849386B2

公开(公告)日：2023-12-19

申请号：US17478709

申请日：2021-09-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lixia Xue ,  Xu Zhang ,  Jianguo Wang ,  Yi Qin ,  Yongzhao Cao

IPC: H04W72/04 ,  H04W48/10 ,  H04J11/00 ,  H04W56/00 ,  H04L5/00 ,  H04L25/03 ,  H04W72/30 ,  H04L47/76 ,  H04N21/462 ,  H04B17/382 ,  H04W72/23 ,  H04L27/26 ,  H04L47/70

CPC classification number: H04W48/10 ,  H04J11/0073 ,  H04J11/0079 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/03012 ,  H04L47/76 ,  H04W56/001 ,  H04W72/04 ,  H04W72/30 ,  H04B17/382 ,  H04L27/2671 ,  H04L47/822 ,  H04N21/4622 ,  H04W72/23

Abstract: A control information sending/receiving method and device are provided, to implement indicating a time-frequency location of a control channel to a terminal device in a 5G NR system or a future evolved LTE system. The method includes: receiving, by a terminal device, broadcast information; determining, from at least two predefined time-domain locations, a time-domain location of a broadcast channel carrying the broadcast information; determining a time-domain location of a control channel based on the time-domain location of the broadcast channel; and performing control channel detection in the determined time-domain location of the control channel.

公开(公告)号：US11700101B2

公开(公告)日：2023-07-11

申请号：US17876248

申请日：2022-07-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Jianqin Liu ,  Chuanfeng He ,  Xu Zhang

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/20 ,  H04W72/044 ,  H04L27/26

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04W72/12 ,  H04W72/20 ,  H04L5/0048 ,  H04L27/2602 ,  H04W72/044

Abstract: One example method includes receiving configuration information of a control channel resource set, where the configuration information indicates a quantity of time-frequency resource blocks of the control channel resource set and an offset from a frequency domain center location of a synchronization signal block to a frequency domain center location of the control channel resource set, the synchronization signal block includes broadcast information and a synchronization signal, and the broadcast information includes the configuration information. The control channel resource set is determined based on the quantity of time-frequency resource blocks and the offset, and control information is received within the control channel resource set.

公开(公告)号：US11533086B2

公开(公告)日：2022-12-20

申请号：US16987117

申请日：2020-08-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/0456 ,  H04B7/06 ,  H04L25/03

Abstract: The present disclosure relates to a method for determining a precoding matrix indicator, a user equipment (UE), a base station (e.g., 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.

公开(公告)号：US10784932B2

公开(公告)日：2020-09-22

申请号：US16164719

申请日：2018-10-18

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/0456 ,  H04B7/06 ,  H04L25/03

Abstract: The present invention relates to a method for determining a precoding matrix indicator, a user equipment (UE), a base station (e.g., 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.