公开(公告)号：US20200154406A1

公开(公告)日：2020-05-14

申请号：US16747249

申请日：2020-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang

IPC: H04W72/04

Abstract: Embodiments of the present invention provide a signal transmission apparatus, system, and method. A first network device detects, in a first resource group, a first signal sent by a second network device, and the first network device determines an mth resource in a second resource group according to an nth resource in the first resource group and a first correspondence.

公开(公告)号：US10574323B2

公开(公告)日：2020-02-25

申请号：US15935036

申请日：2018-03-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu ,  Yongxing Zhou

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/0417 ,  H04B7/0452

Abstract: Determining, by user equipment, a measurement procedure and a type of fed-back channel state information CSI according to a type of a measurement process, where the type of the measurement process includes a definition of a signal measurement pilot and a definition of an interference measurement pilot, and different types of measurement processes correspond to different measurement procedures and/or different types of fed-back channel state information CSI; and performing, by the user equipment, measurement and feedback according to the determined measurement procedure and/or the determined type of the fed-back CSI. The user equipment can determine different measurement processes and different types of fed-back channel state information CSI according to different types of measurement processes.

公开(公告)号：US10555277B2

公开(公告)日：2020-02-04

申请号：US15675008

申请日：2017-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang

IPC: H04W72/04 ,  H04B17/309 ,  H04B7/0413

Abstract: Embodiments of the present invention provide a signal transmission apparatus, system, and method. A first network device detects, in a first resource group, a first signal sent by a second network device, and the first network device determines an mth resource in a second resource group according to an nth resource in the first resource group and a first correspondence.

公开(公告)号：US10469143B2

公开(公告)日：2019-11-05

申请号：US16059948

申请日：2018-08-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang ,  Jianghua Liu ,  Yongxing Zhou

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/04

Abstract: A precoding matrix set determining method and apparatus, and a parameter indication information sending method and apparatus are provided. The precoding matrix set determining method include: determining, by a first network device, a parameter used for determining a precoding matrix set, where the parameter includes at least one of a phase parameter, an amplitude parameter, a quantity of vectors in the precoding matrix set, a quantity of vectors in a first codebook set in dual-codebook feedback, and a quantity of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixed; and using the parameter to determine the precoding matrix set, where the precoding matrix set includes at least one precoding matrix. By using this solution, flexibility of feeding back a precoding matrix indicator is improved.

公开(公告)号：US10454537B2

公开(公告)日：2019-10-22

申请号：US15630303

申请日：2017-06-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu ,  Jianghua Liu ,  Leiming Zhang

IPC: H04L5/00 ,  H04B7/0417 ,  H04B7/0456 ,  H04W24/08 ,  H04B7/0452 ,  H04L1/20 ,  H04B7/06

Abstract: Embodiments of the present invention provide a channel measurement and feedback method, a network device, and a system, and relate to the field of communications technologies. The method includes: receiving, by a first network device, pilot port configuration information sent by a second network device, where the pilot port configuration information is used to describe at least two pilot ports; measuring, by using the at least two pilot ports, a pilot signal sent by the second network device, and determining first information, where the first information includes at least one of second information of the first network device or third information of a third network device when it is assumed that the first network device and the third network device communicate with the second network device by performing spatial multiplexing on a same time frequency resource.

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：US20190190761A1

公开(公告)日：2019-06-20

申请号：US16270308

申请日：2019-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2626 ,  H04L1/00 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/2605

Abstract: This application relates to the field of wireless communications technologies, and discloses a signal sending method. The method includes: mapping, onto a time frequency resource, a first signal that is in frequency domain and that corresponds to a subcarrier spacing parameter in a subcarrier spacing system parameter group, and generating a second signal that is in time domain and that corresponds to the first signal; and sending the second signal to a second network device. First signals corresponding to the different subcarrier spacing system parameters occupy a same quantity of subcarriers, and second signals corresponding to the different subcarrier spacing system parameters occupy a same time length T.

公开(公告)号：US10326504B2

公开(公告)日：2019-06-18

申请号：US16015831

申请日：2018-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang ,  Jianghua Liu

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/04 ,  H04B7/0673 ,  H05K999/99

Abstract: A method for measuring and feeding back channel information and a corresponding apparatus are provided. In an embodiment the method includes determining, by a first network device, a first codebook from a first codebook set, wherein the first codebook set comprises at least two first codebooks, wherein a sub-vector Wx of each first codebook is formed by a zero vector and a non-zero vector, wherein vectors forming the Wx are associated with different groups of antenna ports, wherein each first codebook comprises at least one first sub-vector   [ V a 0 0 V a 1 0 ] and/or at least one second sub-vector   [ 0 V b 0 0 V b 1 ] , and wherein Va0 and Va1 are elements in the vector Va, and Vb0 and Vb1 are elements in the vector Vb and sending a codebook index to a second network device, wherein the codebook index is associated with the first codebook selected from the first codebook set.

公开(公告)号：US10320457B2

公开(公告)日：2019-06-11

申请号：US15467813

申请日：2017-03-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rong Wen ,  Kunpeng Liu ,  Jiguang He ,  Taejoon Kim

IPC: H04B7/06 ,  H04L1/06 ,  H04L25/02 ,  H04W72/04 ,  H04B7/0456

Abstract: Embodiments of the present application provide a beam tracking method, apparatus, and system, which relate to the communications field, so that a relatively high channel capacity can be obtained, and system spectrum efficiency can be improved. The method includes: obtaining, by a communications device, a channel relevance coefficient, and determining a first radio-frequency weighted matrix of the communications device in an (n+1)th timeslot according to the relevance coefficient, where n is an integer, and n≥1; receiving, by the communications device, a first known signal sent by a peer device, and determining an equivalent channel matrix in the (n+1)th timeslot according to the received first known signal; and determining, by the communications device, a digital weighted matrix of the communications device in the (n+1)th timeslot according to the equivalent channel matrix, so as to match a real-time channel and transmit data by using the real-time channel.

公开(公告)号：US20190173539A1

公开(公告)日：2019-06-06

申请号：US16272428

申请日：2019-02-11

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Kunpeng Liu ,  Leiming Zhang ,  Jianghua Liu

IPC: H04B7/0456 ,  H04L1/06 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/04 ,  H04L1/00

Abstract: Embodiments of the present invention disclose a signal transmission method, a system, and a device. When measuring a reference signal and determining channel quality, UE obtains a difference between codeword to CSI-RS mapping relationships by using a channel quality measurement model, may calculate an optimized mapping relationship by means of measurement, and determines at least one mapping relationship from these mapping relationships, to adjust a codeword to CSI-RS mapping relationship of a channel, thereby improving system flexibility and increasing channel resource utilization.