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：US10778297B2

公开(公告)日：2020-09-15

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 ,  H04B7/0417 ,  H04B7/06 ,  H04L1/06 ,  H04B7/04 ,  H04L1/00

Abstract: A signal transmission method, system and device are described. When measuring a reference signal and determining channel quality, a user equipment (UE) obtains a difference between codeword-to-CSI-RS mapping relationships by using a channel quality measurement model. The UE, using a measurement, calculates an optimized mapping relationship. The UE determines at least one mapping relationship from the mapping relationships, to adjust a codeword-to-CSI-RS mapping relationship of a channel.

公开(公告)号：US10727916B2

公开(公告)日：2020-07-28

申请号：US16188911

申请日：2018-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu ,  Di Zhang

IPC: H04B7/0456 ,  H04L1/06 ,  H04B7/0426 ,  H04B7/06 ,  H04B7/0408

Abstract: A channel information sending method, a data sending method, and a device are provided, to improve feedback precision of a precoding matrix. A first device includes: a receiving module, configured to receive a reference signal; a processing module, configured to measure the reference signal to obtain first channel information and second channel information; and a sending module, configured to send the first channel information and the second channel information. When generating the precoding matrix, the second device may perform weighted combination on M first vectors based on the weighted combination factor indicated by the received second channel information, instead of selecting only one eigenvector from a plurality of eigenvectors, so that the generated precoding matrix is more precise.

公开(公告)号：US10587322B2

公开(公告)日：2020-03-10

申请号：US15971599

申请日：2018-05-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu

IPC: H04B7/06 ,  H04B7/0456 ,  H04W24/08

Abstract: Embodiments of the present invention provide a CSI measurement and feedback method and apparatus. In some embodiments, a terminal receives a reference signal sent by a base station, and the terminal performs channel measurement based on the reference signal, to obtain first CSI carrying a target index I1. Different cases of the target index exist. The terminal sends the first CSI.

公开(公告)号：US10581497B2

公开(公告)日：2020-03-03

申请号：US16504832

申请日：2019-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu ,  Xueru Li ,  Bingyu Qu

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

Abstract: The present disclosure relates to information feedback methods and apparatus. One example method includes receiving signaling from a base station, where the signaling is used to instruct to feed back transmit diversity-based channel state information and sending feedback information to the base station, where the feedback information includes precoding matrix indicator (PMI), the PMI is used to indicate a precoding matrix in a precoding matrix set, and a structure of the precoding matrix is one of two specific structures.

公开(公告)号：US10575292B2

公开(公告)日：2020-02-25

申请号：US15630837

申请日：2017-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Chaojun Li ,  Qiang Wu

IPC: H04W72/04 ,  H04L5/00

Abstract: Embodiments of the present invention provide methods for transmitting and receiving a control channel, a base station, and a user equipment, which relate to the communication field, and can solve a transmission problem of available changing transmission resources caused by introduction of an E-PDCCH. A method includes determining, by a terminal device, a resource set and resource elements (REs) of predetermined overheads in the resource set. The REs of the predetermined overheads include an RE of at least one of a paging channel and a synchronization channel, with at least one of following REs: an RE of a channel state information-reference signal (CSI-RS), an RE of a cell-specific reference signal (CRS), an RE of a demodulation reference signal (DMRS), or a muted RE. The terminal device receives from a base station, a control channel on an RE subset comprised in the resource set, wherein the RE subset comprises a part of the REs in the resource set and do not contain the REs of the predetermined overheads.

公开(公告)号：US10554273B2

公开(公告)日：2020-02-04

申请号：US16188911

申请日：2018-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu ,  Di Zhang

IPC: H04B7/0456 ,  H04L1/06 ,  H04B7/0426 ,  H04B7/06 ,  H04B7/0408

Abstract: A channel information sending method, a data sending method, and a device are provided, to improve feedback precision of a precoding matrix. A first device includes: a receiving module, configured to receive a reference signal; a processing module, configured to measure the reference signal to obtain first channel information and second channel information; and a sending module, configured to send the first channel information and the second channel information. When generating the precoding matrix, the second device may perform weighted combination on M first vectors based on the weighted combination factor indicated by the received second channel information, instead of selecting only one eigenvector from a plurality of eigenvectors, so that the generated precoding matrix is more precise.

公开(公告)号：US20190334602A1

公开(公告)日：2019-10-31

申请号：US16505204

申请日：2019-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Xueru Li

IPC: H04B7/06 ,  H04L25/02

Abstract: This application provides a channel state information feedback method, user equipment, and a base station. A base station configures N first reference signal resources for UE, and sends the N first reference signal resources to the UE. The UE feeds back the CSI of the M first reference signal resources in a horizontal dimension and the M pieces of first reference signal resource indication information to the base station. This overcomes a disadvantage that only channel state information in a horizontal dimension is fed back in conventional channel estimation.

公开(公告)号：US20190260432A1

公开(公告)日：2019-08-22

申请号：US16403119

申请日：2019-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xueru Li ,  Kunpeng Liu ,  Bingyu Qu

IPC: H04B7/0417 ,  H04W72/04

Abstract: The present invention describes a channel measurement method, including: sending, by a base station, first control information to user equipment UE, where the first control information is used to indicate a measurement reference signal of the UE on a carrier, and the first control information includes at least one first measurement configuration set, and is used to instruct the UE to measure the measurement reference signal based on the at least one first measurement configuration set; sending, by the base station, the measurement reference signal to the UE.

公开(公告)号：US20190174551A1

公开(公告)日：2019-06-06

申请号：US16272705

申请日：2019-02-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Bingyu Qu ,  Jianqin Liu

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04L5/00

Abstract: A method includes: configuring, by a base station, at least two types of random access resources, where the at least two types of random access resources include a first-type random access resource and a second-type random access resource; and different types of random access resources are in a one-to-one correspondence with different sending beam forms of a terminal; or the first-type random access resource is associated with resources of different downlink signals, and the second-type random access resource is not associated with the resources of the different downlink signals.