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公开(公告)号：US20200044700A1
公开(公告)日：2020-02-06
申请号：US16594646
申请日：2019-10-07
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jianguo Wang , Yongxing Zhou , Jianghua Liu
IPC: H04B7/0456 , H04B7/06 , H04B7/0417
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.
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公开(公告)号：US20200007264A1
公开(公告)日：2020-01-02
申请号：US16566106
申请日：2019-09-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Qiang Wu , Yongxing Zhou
Abstract: According to a resource configuration method, user equipment, and a base station that are provided in embodiments of the present invention and relate to the communications field. A specific solution is as follows: A base station sends M reference signals to UE in N time units in a time unit set, where the reference signal is used by the UE to perform channel quality measurement, and each reference signal in the M reference signals is corresponding to one piece of precoding matrix information. The base station receives channel quality indication information sent by the UE.
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公开(公告)号：US10470166B2
公开(公告)日：2019-11-05
申请号：US15694606
申请日：2017-09-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yan Cheng , Yongxing Zhou , Bingyu Qu
Abstract: Embodiments of the present invention provide a hybrid automatic repeat request-acknowledgment transmission method and an apparatus. The hybrid automatic repeat request-acknowledgment transmission method includes: receiving, by user equipment, on a first serving cell in a subframe n-k, a PDSCH or a downlink control channel indicating downlink SPS release; and sending, by the user equipment in a subframe n, an HARQ-ACK corresponding to the PDSCH or the downlink control channel that is of the first serving cell and that is in the subframe n-k, where an HARQ-ACK timing includes a first HARQ-ACK timing or a second HARQ-ACK timing.
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公开(公告)号：US10425848B2
公开(公告)日：2019-09-24
申请号：US14589686
申请日：2015-01-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingyuan Sun , Liang Xia , Yongxing Zhou , Xiaotao Ren , Mingyu Zhou , Tao Guo
Abstract: A method for virtual carrier aggregation, a base station, and a user equipment are provided. A base station receives measurement capability indication information and indication information indicating a capability of receiving data transmission that are reported by a UE. The base station selects a measurement set for the UE according to the measurement capability indication information, and sends the measurement set to the UE, where the indication information indicating the capability of receiving data transmission includes information of carriers on which the UE supports concurrent receiving of data transmission and the measurement capability indication information includes indication information indicating a capability of the UE for measuring CSI and/or indication information indicating a capability of the UE for measuring RSRP. The base station can flexibly select an activated carrier set for the UE.
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公开(公告)号：US10362505B2
公开(公告)日：2019-07-23
申请号：US15683264
申请日：2017-08-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Xia , Xiaotao Ren , Yongxing Zhou
Abstract: Provided in embodiments of the present application are a method and terminal for handling channel state information (CSI). The embodiments use the terminal to measure and report to a base station first CSI, where the first CSI comprises a first rank indicator (RI), a first precoding matrix indicator (PMI), and a first channel quality indicator (CQI), to acquire a second RI and/or a second PMI on the basis of the first CSI. The terminal is able to utilize the second RI to measure and report to the base station the PMI and CQI corresponding to the second RI; or, utilize the second RI and the second PMI to measure and report to the base station the CQI corresponding to the second RI and to the second PMI; or, utilize the second PMI to measure and report to the base station the RI and CQI corresponding to the second PMI.
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Patent Agency Ranking
公开(公告)号：US20190173550A1
公开(公告)日：2019-06-06
申请号：US16268284
申请日：2019-02-05
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.
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公开(公告)号：US20190140710A1
公开(公告)日：2019-05-09
申请号：US16233444
申请日：2018-12-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianguo Wang , Yongxing Zhou , Yong Wu , Liang Xia
IPC: H04B7/0456 , H04L5/00 , H04B7/06
Abstract: A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first reference signal set, where the precoding matrix is a function of the user equipment-specific matrix or matrix set; and sending a precoding matrix indicator to the base station, where the precoding matrix indicator corresponds to the selected precoding matrix. In the embodiments of the present invention, CSI feedback precision can be improved without excessively increasing feedback overhead, thereby improving system performance.
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公开(公告)号：US10230443B2
公开(公告)日：2019-03-12
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 , H04N19/124 , G06F17/16 , H04B7/0413
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.
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129.发明申请公开(公告)号：US20180343159A1
公开(公告)日：2018-11-29
申请号：US16055353
申请日：2018-08-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianqin Liu , Jianghua Liu , Qiang Wu , Yongxing Zhou
Abstract: The present invention provides a signal sending apparatus, a signal detection apparatus, a signal sending and detection system, a signal sending method, and a signal detection method. The apparatus determines a time unit that is in each time window and that is used to transmit a synchronization signal, and transmits the synchronization signal in the determined time unit in each time window. Therefore, a synchronization signal is always located in a time unit that has a fixed location in each time window, so that a device at a receive end needs to perform detection only in a fixed time unit in each time window, thereby reducing complexity of designing and detecting the synchronization signal.
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公开(公告)号：US10141990B2
公开(公告)日：2018-11-27
申请号：US15950820
申请日：2018-04-11
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jianguo Wang , Yongxing Zhou , Yong Wu , Liang Xia
IPC: H04B7/0456 , H04L5/00 , H04B7/06
Abstract: A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first reference signal set, where the precoding matrix is a function of the user equipment-specific matrix or matrix set; and sending a precoding matrix indicator to the base station, where the precoding matrix indicator corresponds to the selected precoding matrix. In the embodiments of the present invention, CSI feedback precision can be improved without excessively increasing feedback overhead, thereby improving system performance.
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