公开(公告)号：US20240030980A1

公开(公告)日：2024-01-25

申请号：US18265495

申请日：2021-12-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sihai WANG ,  Shuangkaisheng BI ,  Xueru LI ,  Cheng QIN

IPC: H04B7/06 ,  H04L25/02 ,  G06N3/0455

CPC classification number: H04B7/0626 ,  H04L25/0204 ,  G06N3/0455

Abstract: The method includes: An access network device performs first encoding on a channel state information-reference signal CSI-RS, to generate first information, where the CSI-RS is used to obtain channel state information CSI corresponding to a channel between the access network device and a terminal device; the access network device sends the first information to the terminal device over N radio frequency links, where N is a positive integer; the access network device receives third information from the terminal device, where the third information is generated by the terminal device after the terminal device performs second encoding on second information, and the second information is determined by the terminal device based on the first information and the CSI-RS; and the access network device performs first decoding on the third information, to generate the CSI, where the first decoding includes decoding corresponding to the first encoding.

公开(公告)号：US20220393822A1

公开(公告)日：2022-12-08

申请号：US17886453

申请日：2022-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zijie XU ,  Yu GAO ,  Guohua ZHOU ,  Jinlin PENG ,  Shengyue DOU ,  Xueru LI ,  Xianda LIU

IPC: H04L5/00 ,  H04W72/12

Abstract: A communication method and apparatus improve accuracy of correcting a frequency offset. Configuration information received from a network device provides for configuring one or more uplink reference signal resources each including a first time unit and a second time unit. The first time unit includes a first antenna port. The second time unit includes a second antenna port. An uplink reference signal is sent to the network device based on the configuration information.

公开(公告)号：US20220201715A1

公开(公告)日：2022-06-23

申请号：US17690719

申请日：2022-03-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi WEI ,  Xueru LI ,  Bingyu QU ,  Di ZHANG ,  Mingxin GONG

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00

Abstract: This application provides example reference signal (RS) transmission methods and example communication apparatuses. One example reference signal transmission method includes receiving, by a terminal device, first information in a first time unit, where the first information triggers the terminal device to transmit a RS. The terminal device can then transmit the RS in a second time unit, where the second time unit is indicated by a time offset indicator n in valid uplink transmission time units starting from the first time unit.

公开(公告)号：US20210135726A1

公开(公告)日：2021-05-06

申请号：US17144626

申请日：2021-01-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Ruiqi ZHANG

IPC: H04B7/06

Abstract: A channel state information reporting method and apparatus are described. The method can include a terminal device obtaining first indication information and sending the first indication information to a network device. The network device receives the first indication information, where the first indication information indicates a differential value between channel state information of a first antenna port set and channel state information of a second antenna port set. The first antenna port set includes x antenna ports of the terminal device, the second antenna port set includes m antenna ports of the terminal device, and the first antenna port set is different from the second antenna port set. The channel state information reporting method and apparatus in embodiments of this application help improve accuracy of channel state information obtained by a network device, and improve data transmission performance.

公开(公告)号：US20200119787A1

公开(公告)日：2020-04-16

申请号：US16696334

申请日：2019-11-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi ZHANG ,  Xueru LI ,  Di ZHANG

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0413

Abstract: A channel state information sending method, a channel state information receiving method, and a device are disclosed, to reduce resource overheads required when a terminal device feeds back CSI to a network device in a scenario of a high precision codebook—based precoding matrix. The method includes: determining, by a terminal device, a precoding matrix W; sending, by the terminal device, a signal including CSI to a network device; obtaining, by the network device, an RI and indication information based on the signal including the CSI; obtaining, by the network device, a PMI2 based on the RI and the indication information; and determining, by the network device, the precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2.

公开(公告)号：US20200044803A1

公开(公告)日：2020-02-06

申请号：US16579647

申请日：2019-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Jianqin LIU ,  Kunpeng LIU ,  Bingyu QU ,  Yongxing ZHOU

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0413

Abstract: Embodiments of this application provide a channel state information transmission method, a terminal device, and a network device. The method includes: sending, by a terminal device, a first reference signal through a first antenna port set, where the first antenna port set includes n antenna ports; receiving, by the terminal device, a second reference signal through a second antenna port set, where the second antenna port set includes N antenna ports, and the first antenna port set is a proper subset of the second

公开(公告)号：US20190393941A1

公开(公告)日：2019-12-26

申请号：US16559354

申请日：2019-09-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi ZHANG ,  Xueru LI

IPC: H04B7/0456 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00

Abstract: This application provides a method for determining a precoding matrix set, so as to avoid a case in which a relatively large quantity of precoding matrices in a precoding matrix set cannot be used, thereby improving system performance. A terminal device receives indication information from a network device, and determines a second precoding matrix set front a first precoding matrix set whose rank is R based on the indication information. Each precoding matrix W in the first precoding matrix set satisfies W=W1×W2, the second precoding matrix set is a proper subset of the first precoding matrix set, and the second precoding matrix set does not include W=W1×W2 that satisfies the specific condition in the first precoding matrix set.

公开(公告)号：US20190335443A1

公开(公告)日：2019-10-31

申请号：US16506588

申请日：2019-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Xueru LI

IPC: H04W72/04 ,  H04L5/00

Abstract: This application provides a wireless communication method, a terminal device, and a network device. The method includes: determining, by a terminal device, a pilot signal corresponding to at least one of a plurality of search sections of a control channel; and detecting, by the terminal device, a control channel candidate in the at least one search section based on a quasi-co-location (QCL) association between the pilot signal corresponding to each search section and the demodulation pilot of the control channel candidate in each search section.

公开(公告)号：US20190230714A1

公开(公告)日：2019-07-25

申请号：US16370430

申请日：2019-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Xueru LI ,  Bingyu QU

IPC: H04W74/08 ,  H04W74/00

Abstract: The present invention provides an access method, a terminal device, and a base station. The method includes: determining, by a terminal device at a current moment, that a preset condition for a link exception is met, and determining that the current moment is within a preconfigured time window; selecting, by the terminal device, one access resource from at least two preconfigured access resources as a target access resource; and sending, by the terminal device, an access signal to the base station by using a time-frequency resource in the target access resource.

公开(公告)号：US20250168829A1

公开(公告)日：2025-05-22

申请号：US19030507

申请日：2025-01-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongli HE ,  Xueru LI

IPC: H04W72/0446 ,  H04B7/0456 ,  H04L5/00

Abstract: This application communication methods and apparatuses. In an implementation, a communication method includes: A network device sends, to a first relay device, first information indicating a first time unit, a second time unit, and a first phase. The network device sends a first reference signal to a terminal device in the first time unit and the second time unit. The network device receives second information from the terminal device, where the second information indicates a first phase difference or a precoding matrix index (PMI) associated with the first reference signal, and the first phase difference or the PMI and the first phase are used to determine an association relationship between the first relay device and the terminal device.