公开(公告)号：US20220345266A1

公开(公告)日：2022-10-27

申请号：US17642494

申请日：2020-09-11

Applicant: ZTE CORPORATION

Inventor： Guozeng ZHENG ,  Hao WU ,  Yong LI ,  Chuangxin JIANG

IPC: H04L5/00 ,  H04W72/12

Abstract: Provided are an uplink transmission method and device. The uplink transmission method is applied to a first communication node and includes: receiving a downlink reference signal sent by a second communication node and acquiring downlink channel information; sending an uplink reference signal by using the downlink channel information; monitoring downlink control signaling sent by the second communication node, where the downlink control signaling includes a sub-band SRS resource indication; and sending an uplink transmission channel according to scheduling of the downlink control signaling.

公开(公告)号：US20220286261A1

公开(公告)日：2022-09-08

申请号：US17825318

申请日：2022-05-26

Applicant: ZTE Corporation

Inventor： Hao WU ,  Yong LI ,  Guozeng ZHENG ,  Zhaohua LU ,  Yu Ngok LI

IPC: H04L5/00 ,  H04W24/10

Abstract: This disclosure relates to channel state information reference signal configuration, precoding, and transmission, and channel state information feedback configuration, compression, and transmission in multiple-input and multiple-output (NEMO) wireless communication systems. The various embodiments provide channel state information reference signal and feedback schemes which facilitate a decrease of the amount of information that need to be transmitted and reduce communication resource overhead for channel state information configuration and feedback.

公开(公告)号：US20220263543A1

公开(公告)日：2022-08-18

申请号：US17628291

申请日：2020-05-29

Applicant: ZTE CORPORATION

Inventor： Yong LI ,  Hao WU ,  Guozeng ZHENG ,  Zhaohua LU

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/0456

Abstract: Provided are a method and apparatus for feeding back layer information, a method and apparatus for receiving layer information, a communication node and a medium. The method for feeding back layer information includes: receiving configuration information of a first communication node; determining layer information of the first communication node according to the configuration information; and feeding back the layer information to the first communication node.

公开(公告)号：US20210258048A1

公开(公告)日：2021-08-19

申请号：US17245598

申请日：2021-04-30

Applicant: ZTE Corporation

Inventor： Yong LI ,  Hao WU ,  Zhaohua LU ,  Yijian CHEN ,  Yu Ngok LI

IPC: H04B7/0456

Abstract: A wireless communication method is described for a channel state information reporting method. The reporting method may include a communication node performing the following example operations: (1) Performing differential operation on a sequence of coefficients used to compose the precoding matrix vector with a certain vector, where the differential operation may be performed on adjacent frequency domain units in order to produce a resulting sequence. The sequence of coefficients of the certain vector is a sequence formed by the value of the certain vector's coefficients on the different unit of the frequency domain. (2) The resulting sequence can be transformed to obtain another sequence on another domain. (3) Send back at least some of the data in the another sequence to a network node.

公开(公告)号：US20190020396A1

公开(公告)日：2019-01-17

申请号：US16068748

申请日：2017-02-10

Applicant: ZTE CORPORATION

Inventor： Hao WU ,  Yijian CHEN ,  Jianxing CAI ,  Huahua XIAO ,  Yu LI ,  Zhaohua LU ,  Yong LI ,  Yuxin WANG

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/06 ,  H04B7/063 ,  H04B7/0639

Abstract: Provided are a method for channel information feedback in a multi-antenna system, and a terminal. The method comprises: a terminal receives CSI-RSs of M ports sent by a base station, and performs estimation according to the CSI-RSs to obtain M-dimensional downlink channel information; the terminal uses a transformation function Fk to perform a linear transformation on the M-dimensional downlink channel information, and obtains Nk-dimensional kth type channels, wherein k is greater than or equal to 1 and less than or equal to K, M≥Nk, and K≥1; the terminal uses a preset Nk-dimensional codebook to respectively perform channel information quantisation on the kth type channels, and determines a corresponding precoding matrix and precoding matrix indicator information (PMIk); the terminal selects S type channels from within K type channels, and feeds index numbers of the selected channels and corresponding PMI back to the base station.