公开(公告)号：US09913265B2

公开(公告)日：2018-03-06

申请号：US14802555

申请日：2015-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Guan ,  Lixia Xue ,  Yongxing Zhou ,  Qiang Li ,  Jingyuan Sun

IPC: H04W72/04 ,  H04L5/00 ,  H04L12/24 ,  H04L12/751 ,  H04W48/12 ,  H04W88/02

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0073 ,  H04L41/12 ,  H04L45/02 ,  H04W48/12 ,  H04W72/04 ,  H04W88/02

Abstract: Embodiments of the present invention provide a detecting method, a transmitting method and an apparatus for a common control channel. The detecting method includes: determining a candidate resource set within virtual downlink resources of a current cell. The candidate resource set can include at least one candidate resource carrying a common control channel of the current cell. A detection is performed on at least one candidate resource in the candidate resource set, so as to acquire the common control channel of the current cell. In the embodiments of the present invention, a selection range of resources for transmitting a common control channel is extended, so that inter-cell interference of the common control channel can be coordinated, and a detection performance of the common control channel can be improved.

公开(公告)号：US09859962B2

公开(公告)日：2018-01-02

申请号：US14923019

申请日：2015-10-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/00 ,  H04B7/0456 ,  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.

公开(公告)号：US09838097B2

公开(公告)日：2017-12-05

申请号：US15439686

申请日：2017-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Jianghua Liu

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0456

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0473 ,  H04B7/0626 ,  H04B7/0639

Abstract: Embodiments of the present invention provide a 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 three matrices being w1, Z, and w2, that is, w=w1zw2, where both w1 and Z are block diagonal matrices, w1=a formula (I), Z=a formula (II), each of w1 and Z includes at least one block matrix, that is, NB≧1, and each column of each block matrix zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix W according to the PMI.

公开(公告)号：US20170331542A1

公开(公告)日：2017-11-16

申请号：US15668531

申请日：2017-08-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Leiming Zhang

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

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 abase 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.

公开(公告)号：US20170325206A1

公开(公告)日：2017-11-09

申请号：US15660980

申请日：2017-07-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqin Liu ,  Kunpeng Liu ,  Qiang Wu ,  Yongxing Zhou ,  Jianghua Liu

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/00 ,  H04L5/0053 ,  H04W72/04

Abstract: The present invention provides a method for assigning the number of control channel candidates and the number of blind detection times, a base station, and a user equipment. The method includes determining a first aggregation level set {L1i} and determining the number of EPDCCH candidates corresponding to each aggregation level in the {L1i}. {L1i} is formed by N aggregation levels supported by an EPDCCH. A second aggregation level set {L2j} is determined along with the number of EPDCCH candidates corresponding to each aggregation level in the {L2j}. {L2j} is formed by M aggregation levels supported by an EPDCCH to be detected, {L2j} is a subset of {L1i}, and the number of EPDCCH candidates corresponding to L2j in {L2j} is greater than or equal to the number of EPDCCH candidates corresponding to L2j in {L1i}.

公开(公告)号：US09813213B2

公开(公告)日：2017-11-07

申请号：US14807082

申请日：2015-07-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yan Cheng ,  Yongxing Zhou ,  Lixia Xue ,  Brian Classon

IPC: H04L5/00 ,  H04W72/04 ,  H04J11/00 ,  H04W48/12 ,  H04W72/00

CPC classification number: H04L5/0051 ,  H04J11/0073 ,  H04J11/0076 ,  H04J11/0079 ,  H04J2011/0096 ,  H04L5/0007 ,  H04L5/0053 ,  H04W48/12 ,  H04W72/005 ,  H04W72/04

Abstract: The present invention provides a downlink channel decoding method, a downlink information transmission method, a user equipment, and a base station. The downlink channel decoding method includes: determining, by a user equipment, a resource unit occupied by a DMRS; and decoding a downlink channel based on the DMRS transmitted on the resource unit. The present invention can enable different DMRS patterns to concurrently exist on an NCT carrier. In a downlink transmission process, a DMRS pattern used for downlink transmission is determined according to priorities of different channels and/or signals, which can ensure optimal performance of a high-priority channel and/or signal, and can further improve downlink transmission performance.

公开(公告)号：US09800385B2

公开(公告)日：2017-10-24

申请号：US14979967

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/04 ,  H04B7/0413 ,  H04W72/04

CPC classification number: H04L5/0053 ,  H04B7/04 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0048 ,  H04W72/0446

Abstract: Embodiments disclose a reference signal transmission method and an apparatus. The method includes receiving reference signal resource configuration information sent by a base station, where the reference signal resource configuration information includes antenna port quantity information and a resource configuration index. The method also includes determining a reference signal configuration from a reference signal configuration set according to the antenna port quantity information and the resource configuration index. The method also includes obtaining, according to the determined reference signal configuration, positions of the resource elements REs that are used to send the reference signal on the antenna ports in the antenna port set, and receiving reference signals according to the positions of the REs.

公开(公告)号：US09713101B2

公开(公告)日：2017-07-18

申请号：US14715037

申请日：2015-05-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04W4/00 ,  H04B7/216 ,  H04W52/24 ,  H04W36/00 ,  H04B7/06 ,  H04L1/00 ,  H04W24/04 ,  H04W72/04 ,  H04B17/309 ,  H04L5/00

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.

公开(公告)号：US09641296B2

公开(公告)日：2017-05-02

申请号：US14471950

申请日：2014-08-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunchang Tian ,  Yongxing Zhou ,  Qiang Wu

IPC: H04W4/00 ,  H04L5/00 ,  H04L1/00 ,  H04L1/08 ,  H04W28/18

CPC classification number: H04L5/0037 ,  H04L1/00 ,  H04L1/0075 ,  H04L1/08 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0094 ,  H04W28/18

Abstract: Embodiments of the present invention provide a data transmission method and system, a base station, and a user equipment (UE). The method includes: obtaining, by a base station, a second number of physical resource blocks (PRBs) according to a first number of PRBs, where the second number of PRBs is smaller than the first number of PRBs, and the first number of PRBs is exactly divisible by the second number of PRBs; sending, by the base station, indication information to a UE, where the indication information is used to indicate the second number of PRBs or an encoded bit repetition multiple, and the encoded bit repetition multiple is equal to the first number of PRBs divided by the second number of PRBs; and obtaining, by the UE, the encoded bit repetition multiple according to the indication information, and performing data transmission according to the encoded bit repetition multiple.

公开(公告)号：US09350432B2

公开(公告)日：2016-05-24

申请号：US14713502

申请日：2015-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04L27/00 ,  H04B7/04 ,  H04L25/03 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0641 ,  H04L25/03923 ,  H04L25/03936

Abstract: In the field of communication technologies, a method and an apparatus for acquiring a Precoding Matrix Indicator (PMI) and a Precoding Matrix (PM) are provided. The method includes: acquiring a reference PMI and a differential PMI according to a first non-differential codebook and a first diagonal differential codebook, where codewords included in the first diagonal differential codebook form a diagonal matrix. The apparatus includes a PMI acquiring module. Acquiring a reference PMI and a differential PMI according to a non-differential codebook and a diagonal differential codebook can reduce the feedback overhead or improve the feedback precision; and the fact that a codeword included in the diagonal differential codebook is a diagonal matrix can maintain amplitude characteristics (for example, a constant modulus characteristic, and a finite character set constraint characteristic) of elements of the non-differential codebook or facilitate power distribution among antennas.

Abstract translation: 在通信技术领域中，提供了一种用于获取预编码矩阵指示符（PMI）和预编码矩阵（PM）的方法和装置。 该方法包括：根据第一非差分码本和第一对角差分码本获取参考PMI和差分PMI，其中包括在第一对角差分码本中的码字形成对角矩阵。 该装置包括PMI获取模块。 根据非差分码本和对角差分码本获取参考PMI和差分PMI可以减少反馈开销或提高反馈精度; 并且包括在对角差分码本中的码字是对角矩阵的事实可以保持非差分码本的元素的幅度特性（例如，恒定模量特性和有限字符集约束特性）或促进功率分布之间的功率分配 天线。