公开(公告)号：US20240170860A1

公开(公告)日：2024-05-23

申请号：US18552845

申请日：2022-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qing LIU ,  Qi SHI

IPC: H01Q21/30 ,  H01Q1/32 ,  H01Q1/52 ,  H01Q5/378

CPC classification number: H01Q21/30 ,  H01Q1/3275 ,  H01Q1/521 ,  H01Q5/378

Abstract: An antenna comprises a first radiator, a second radiator, a third radiator located on a printed circuit board PCB. Operating frequency bands of the first radiator and the second radiator comprise a first frequency band, a resonance frequency band generated by the third radiator comprises the first frequency band. A current on the first radiator is orthogonal to a current on the second radiator, and a distance between the first radiator, the second radiator, and the third radiator is less than a half of a first wavelength, wherein the first wavelength is a wavelength corresponding to the first frequency band.

公开(公告)号：US20230239069A1

公开(公告)日：2023-07-27

申请号：US18192068

申请日：2023-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qing LIU ,  Lei ZHENG

IPC: H04L1/00 ,  G06N3/08

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/0019 ,  G06N3/08

Abstract: This application provides a modulation and coding scheme (MCS) selection method. In the method, a first communication device determines a predicted block error rate that corresponds to each MCS of a plurality of MCSs at a transmission time interval (TTI) 1 by using a neural network model, where a prediction parameter that corresponds to each MCS includes a channel parameter and the MCS. The first communication device selects, from the plurality of MCSs based on the plurality of MCSs and the predicted block error rate that corresponds to each MCS, a target MCS that corresponds to the TTI 1, and sends data to a second communication device at the TTI 1 based on the target MCS. The method disclosed herein helps improve channel transmission performance.

公开(公告)号：US20210021310A1

公开(公告)日：2021-01-21

申请号：US17061218

申请日：2020-10-01

Applicant: Huawei Technologies Co., Ltd. ,  FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： Lorenzo MIRETTI ,  Renato CAVALCANTE ,  Slawomir STANCZAK ,  Qing LIU

IPC: H04B7/0456 ,  H04B7/06 ,  H04L25/02

Abstract: The present invention provides a device, a base station device, and a method for respectively obtaining an estimate of a DL covariance matrix from an UL covariance matrix. The devices and method are particularly suitable for massive MIMO scenarios, and are particularly applicable to FDD systems. The device comprises a processor configured to compute an APS of an antenna array, in particular in the continuous angular domain, based on the UL covariance matrix of a communication channel and an UL response of the antenna array. Further, the processor is configured to compute the DL covariance matrix of the channel based on the APS and a DL response of the antenna array. The base station device includes the device and the antenna array.

公开(公告)号：US20180004247A1

公开(公告)日：2018-01-04

申请号：US15547354

申请日：2015-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qing LIU ,  Shuhui SUN ,  Aimeng WANG

IPC: G06F1/16 ,  H01Q13/18

CPC classification number: G06F1/163 ,  H01Q1/273 ,  H01Q13/10 ,  H01Q13/18

Abstract: A wearable device includes: a metal middle cover, a metal bottom cover, a printed circuit board PCB, and a gap. The metal middle cover encircles the wearable device for a whole circle and serves as an exterior of the wearable device. The metal bottom cover is located under the metal middle cover and serves as a rear cover of the wearable device. The gap with a preset width exists between the metal middle cover and the metal bottom cover, and serves as a slot antenna of the wearable device. The PCB is in an inner side of the metal middle cover, and is located above the metal bottom cover. The PCB is electrically connected to the metal middle cover by using a feed point, and feeds power to the metal middle cover.