公开(公告)号：US20210022186A1

公开(公告)日：2021-01-21

申请号：US17039581

申请日：2020-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianqin Liu ,  Xiang Gao ,  Yongxing Zhou

IPC: H04W74/08 ,  H04W72/04

Abstract: This application discloses a communications method, and the method includes: receiving, by a terminal device, first information, where the first information is used to indicate one or more first time units in a random access system frame; and determining, by the terminal device, the one or more first time units based on the first information and a configuration table, where one or more time units in the configuration table are determined based on an uplink-downlink configuration period and a second time unit, the one or more first time units are an optional time domain resource of a random access sequence, and the second time unit is an optional time domain resource of a synchronization channel block. According to the method and the apparatus in this application, the optional time domain resource of the random access sequence can be determined.

公开(公告)号：US10791504B2

公开(公告)日：2020-09-29

申请号：US15716763

申请日：2017-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Yongxing Zhou ,  Leiming Zhang

IPC: H04W48/16 ,  H04W74/08 ,  H04W56/00

Abstract: A wireless access method and apparatus, the method including sending N first signal sets on N first resources, where N is an integer greater than 1, receiving Z response signals from a terminal for the N first signal sets, where each response signal of the response signals comprises indication information of a resource on which the respective first signal set of the N first signal sets is located, Z is an integer greater than or equal to 1, and Z is less than or equal to N, and sending M second signal sets on M second resources according to the Z response signals, where M is an integer greater than or equal to 1, and each second signal set of the M second signal sets corresponds to at least one of the N first signal sets.

公开(公告)号：US10715239B2

公开(公告)日：2020-07-14

申请号：US16599877

申请日：2019-10-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Leiming Zhang

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

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 from a base station, selecting a precoding matrix W from a codebook according to the reference signal, and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix W.

公开(公告)号：US10693694B2

公开(公告)日：2020-06-23

申请号：US16355157

申请日：2019-03-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lixia Xue ,  Xu Zhang ,  Yongxing Zhou

IPC: H04L27/26 ,  H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04W88/02 ,  H04B7/0452

Abstract: This application relates to the mobile communications field, and in particular, to a technology for obtaining a reference signal in a wireless communications system. In an example method for obtaining a reference signal, a terminal device obtains position offset information and a first sequence based on the position offset information. The terminal device demodulates, by using the first sequence, a control channel signal carried in a control channel resource set, to obtain downlink control information.

公开(公告)号：US10588137B2

公开(公告)日：2020-03-10

申请号：US15656493

申请日：2017-07-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Zhang ,  Yuanjie Li ,  Yongxing Zhou ,  Qinghai Zeng

IPC: H04W72/08 ,  H04W24/10 ,  H04W36/00 ,  H04L5/00 ,  H04B7/06 ,  H04W84/12

Abstract: A measurement apparatus and method. The method includes sending, by a radio access network system, information about a subframe mode corresponding to at least one beam, where the information about the subframe mode instructs a UE to perform measurement according to the information about the subframe mode, and the method further includes receiving, by the radio access network system, a measurement result sent by the UE. The measurement apparatus and method can be used to perform the measurement in a millimeter wave scenario.

公开(公告)号：US10523291B2

公开(公告)日：2019-12-31

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: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00

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.

公开(公告)号：US10511425B2

公开(公告)日：2019-12-17

申请号：US16201672

申请日：2018-11-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingyuan Sun ,  David Jean-Marie Mazzarese ,  Yongxing Zhou ,  Liang Xia ,  Xiaotao Ren ,  Yan Cheng

IPC: H04L12/801 ,  H04L5/14 ,  H04L12/751 ,  H04L12/28 ,  H04L5/00 ,  H04B7/06 ,  H04B7/024 ,  H04L1/00

Abstract: Embodiments of the present invention provide a channel-state information process processing method, a network device, and a user equipment, where the channel-state information process processing method includes: after receiving a first channel-state information CSI request sent by a first network device, if CSI corresponding to multiple aperiodic CSI processes has not been reported by a user equipment, dropping CSI corresponding to a part of aperiodic CSI processes among the multiple aperiodic CSI processes, where each CSI process is associated with a channel measurement resource and an interference measurement resource. A problem existing after a CoMP technology is introduced can be solved that the UE cannot implement processing of multiple CSI processes.

公开(公告)号：US10454640B2

公开(公告)日：2019-10-22

申请号：US15255953

申请日：2016-09-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04L5/00 ,  H04B7/0456 ,  H04B7/06 ,  H04B17/309 ,  H04B17/382

Abstract: The present application discloses a method for reporting channel state information, user equipment, and a base station. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set includes at least two reference signals; sending first CSI to the base station, where the first CSI is determined according to the first reference signal set, and the first CSI includes a first RI and/or a first PMI, where the first PMI is used to indicate a first precoding matrix; receiving a second reference signal set sent by the base station, where the second reference signal set is determined based on the first CSI, and the second reference signal set includes at least one reference signal; and sending second CSI to the base station, where the second CSI is determined according to the second reference signal set.

公开(公告)号：US20190274124A1

公开(公告)日：2019-09-05

申请号：US16417926

申请日：2019-05-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Guan ,  Lixia Xue ,  Yongxing Zhou

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00 ,  H04W76/27 ,  H04W72/00 ,  H04W72/12

Abstract: Embodiments of the present invention provide a control information sending method, receiving method, and device. The control information sending method includes: determining a first subframe of a first radio frame on a first carrier, where the first subframe includes a control region; sending control information in the control region of the first subframe of the first radio frame to a user equipment, where the control information includes a PDCCH; and sending an ePDCCH in a second subframe of the first radio frame to the user equipment. According to the embodiments of the present invention, when control information borne on an ePDCCH cannot be sent in a first radio frame, a PDCCH can still be sent to a user equipment through a control region in a first subframe, thereby achieving purposes of performing uplink/downlink scheduling for the user equipment and downlink feedback for uplink data of the user equipment.

公开(公告)号：US10312990B2

公开(公告)日：2019-06-04

申请号：US15909732

申请日：2018-03-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bingyu Qu ,  Jianqin Liu ,  Kunpeng Liu ,  Yongxing Zhou

IPC: H04B7/12 ,  H04B7/06 ,  H04B7/26 ,  H04L27/26 ,  H04L27/34 ,  H04L5/00

Abstract: A signal sending method includes: mapping, by a sending device, a first sequence onto M even-numbered subcarriers in 2M subcarriers, and mapping a second sequence onto M odd-numbered subcarriers in the 2M subcarriers, where the first sequence is one of a third sequence and a fourth sequence, the second sequence is the other of the third sequence and the fourth sequence, the 2M subcarriers are subcarriers on a same time domain symbol, and for elements of a second time domain sequence corresponding to the fourth sequence and a first time domain sequence corresponding to the third sequence at a same moment, when a complex factor is taken out, one of the first time domain sequence and the second time domain sequence is an in-phase component, and the other is a quadrature component; and transforming sequences mapped onto the 2M subcarriers to a time domain to generate transmit signals, and then sending the transmit signals.