公开(公告)号：US10763948B2

公开(公告)日：2020-09-01

申请号：US16460110

申请日：2019-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingyu Qu ,  Jianqin Liu

IPC: H04L23/02 ,  H04B7/12 ,  H04B7/06 ,  H04L7/04 ,  H04L27/00 ,  H04L27/26

Abstract: A signal sending method and apparatus, and a signal receiving method and apparatus are provided, to ensure a low peak-to-average power ratio and a frequency domain diversity gain when a signal is sent on two different subcarrier groups in a same time cell. The method includes: mapping, by a transmit end, a first sequence {pia0, pia1, . . . , piaP−1} whose length is P into an ith subcarrier group in M subcarrier groups in a same time cell, where the ith subcarrier group includes K consecutive subcarriers that are evenly distributed, M, P, and K are all greater than or equal to 2, P≤K, there is at least one pair of two inconsecutive subcarrier groups in the M subcarrier groups, and a second sequence {pi} corresponding to the M subcarrier groups meets the following requirement: A sequence {xi} is a Barker sequence, where {xi}={xi|x1=ps+1, x2=ps+2, . . . , xM−s=pM, xM−s+1=p1, xM−s+2=p2, . . . , xM=ps}, or a sequence {cxi} is a second sequence corresponding to M consecutive subcarrier groups, where c is a non-zero complex number; generating, by the transmit end, a sending signal based on signals on subcarriers in the ith subcarrier group; and sending, by the transmit end, the sending signal.

公开(公告)号：US10700844B2

公开(公告)日：2020-06-30

申请号：US15679951

申请日：2017-08-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianqin Liu

IPC: H04L5/00 ,  H04W16/10 ,  H04W72/04 ,  H04B7/02

Abstract: A communications apparatus and an uplink reference signal communication method. User equipment (UE) transmits an uplink reference signal of the UE according to reference signal bandwidth configuration information for the UE, reference signal frequency hopping interval information for the UE, and a frequency domain position parameter. Because the reference signal frequency hopping interval information for the UE is added as a parameter, further sampling is performed when frequency hopping of the uplink reference signal is performed. Therefore, a quantity of measurement times is reduced, and efficiency of channel quality measurement is improved.

公开(公告)号：US20200178231A1

公开(公告)日：2020-06-04

申请号：US16786103

申请日：2020-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Di Zhang ,  Jianqin Liu ,  Kunpeng Liu

IPC: H04W72/04 ,  H04L5/00

Abstract: This application discloses a method for indicating PDSCH receiving information, a data receiving method, and an apparatus. According to this application, a network device generates first indication information, where the first indication information is used to indicate physical downlink shared channel PDSCH receiving information, and the PDSCH receiving information includes information identical to physical downlink control channel PDCCH receiving information; and the network device transmits the first indication information over a PDCCH. This application can be used to improve efficiency of indicating PDSCH receiving information, thereby improving PDSCH receiving performance.

公开(公告)号：US10660075B2

公开(公告)日：2020-05-19

申请号：US15983675

申请日：2018-05-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianqin Liu

IPC: H04W72/04 ,  H04L1/00 ,  H04B7/06 ,  H04B5/00 ,  H04B7/0413 ,  H04L5/00 ,  H04W72/02 ,  H04W72/08 ,  H04W88/06

Abstract: Embodiments of the present disclosure provide a channel state information (CSI) sending method, a CSI receiving method, a terminal, and a base station. The terminal selects a target CSI process from N CSI processes. The terminal sets a CSI reporting mode corresponding to the target CSI process, and sends, based on the CSI reporting mode, a CSI corresponding to the CSI process. The terminal can set a CSI reporting mode corresponding to a CSI process, and send, based on the set CSI reporting mode, a CSI corresponding to the CSI process. However, in the prior art, only the base station configures a CSI reporting mode corresponding to each CSI process. Therefore, flexibility is increased.

公开(公告)号：US10476626B2

公开(公告)日：2019-11-12

申请号：US15607232

申请日：2017-05-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianqin Liu ,  Qiang Wu ,  Yongxing Zhou

IPC: H04L1/00 ,  H04W16/28 ,  H04W24/10 ,  H04B7/06 ,  H04L1/20 ,  H04W72/08

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, reference signals used for measurement and overheads of corresponding measurement and feedback are reduced. 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; receives channel quality indication information sent by the UE.

公开(公告)号：US10454546B2

公开(公告)日：2019-10-22

申请号：US16248344

申请日：2019-01-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi Zhang ,  Jianqin Liu

IPC: H04B7/02 ,  H04B7/0456 ,  H04L1/06 ,  H04B7/06 ,  H04W84/04

Abstract: A method and apparatus for precoding matrix indicator feedback reduce a quantity of bits in the feedback. In the method, a terminal device receive a reference signal from a base station and determines a precoding matrix W in a precoding matrix set corresponding to a rank indication. W satisfies W=W1×W2×W3, where W1, W2 and W3 are matrices and respectively corresponding to a first, second and third precoding matrix indicator. None of W1, W2, and W3 is an identity matrix, and the 2M columns in W1 comprise every column in W1×W2. The terminal device transmits the rank indication, the first precoding matrix indicator, the second precoding matrix indicator, and the third precoding matrix indicator to the base station.

公开(公告)号：US10447522B2

公开(公告)日：2019-10-15

申请号：US16055334

申请日：2018-08-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L27/26 ,  H04J1/00 ,  H04J11/00 ,  H04L5/00

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.

公开(公告)号：US20190230636A1

公开(公告)日：2019-07-25

申请号：US16371681

申请日：2019-04-01

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/04 ,  H04L5/00

Abstract: In a system and method of control channel transmission in the communications field, REs, except those used for transmitting a DMRS, are grouped in each physical resource block pair of L physical resource block pairs. The L physical resource block pairs are determined to be used to transmit a control channel into N eREGs. The number of valid REs are calculated except other overheads in each eREG of the N eREGs. Each of the eCCEs are mapped onto M eREGs according to the number of valid REs included in each eREG of the N eREGs of each physical resource block pair. The eCCE is sent in the REs included in the eREG.

公开(公告)号：US10305571B2

公开(公告)日：2019-05-28

申请号：US15686692

申请日：2017-08-25

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04W16/28 ,  H04W36/00

Abstract: A data transmission method, apparatus, and system, and user equipment are provided. The data transmission method may include determining configuration information of a first time unit in a radio time window, where the first time unit includes multiple sub-time units, a switching time period and a transmission time period are reserved in a first sub-time unit at an interval of at least N sub-time units in the first time unit, the switching time period is used to perform analog beam switching for a common channel and/or a common reference signal, and N is a natural number. The method also includes transmitting the common channel and/or the common reference signal in the first sub-time unit in the first time unit according to the configuration information of the first time unit, where the common channel and/or the common reference signal are/is transmitted in the transmission time period.

公开(公告)号：US10237864B2

公开(公告)日：2019-03-19

申请号：US15988220

申请日：2018-05-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqin Liu ,  Jianghua Liu ,  Qiang Wu ,  Chi Gao

IPC: H04W72/04 ,  H04W72/00 ,  H04L5/00

Abstract: The present application provides a method and an apparatus for allocating control channel candidates, which relate to the communications field, and can allocate control channel candidates at different aggregation levels to K ePDCCH sets and reduce complexity of blind detection performed by a UE. The method includes: determining K sets for transmitting a control channel, where each set in the K sets includes at least one physical resource block pair; and allocating control channel candidates at each aggregation level to at least one set in the K sets according to at least one of aggregation levels supported by the control channel to be transmitted, the number of control channel candidates corresponding to each aggregation level, the K sets for transmitting the control channel, and types of the sets.