公开(公告)号：US20200083940A1

公开(公告)日：2020-03-12

申请号：US16684219

申请日：2019-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin GE ,  Wei HAN ,  Xiaoyan BI ,  Hongzhe SHI ,  Ye WU ,  Huangping JIN

IPC: H04B7/0456 ,  H04B7/06

Abstract: This application provides a technical solution for rank indication, and especially when a CQI number is not configured or a CQI number is 1, a network device configures a rank indication restriction parameter as that at least one of ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported by the terminal device; or even if the network device does not perform the foregoing configuration, and none of the ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported, the terminal device may select at least one rank for RI reporting, so as to resolve a problem that a system cannot work. In addition, according to embodiments of this application, bit overheads required for RI reporting may further be reduced.

公开(公告)号：US20190334592A1

公开(公告)日：2019-10-31

申请号：US16506995

申请日：2019-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei HAN ,  Lu WU ,  Huangping JIN

IPC: H04B7/0456 ,  H04B7/06

Abstract: Embodiments of the present application provide a parameter indication method and parameter determining method, a receive device, and a transmit device. The parameter indication method includes: generating indication information for each of a plurality of antenna panels, where the indication information is used to indicate an adjustment parameter of the antenna panel, and the adjustment parameter includes at least one of an amplitude adjustment parameter and a phase adjustment parameter; and sending the indication information. The embodiments of the present application further provide a parameter determining method, a receive device, and a transmit device. In the technical solutions provided in the embodiments of the present application, adjustment parameters of the plurality of antenna panels are fed back to adjust the plurality of antenna panels, so that a precoding vector constructed based on the plurality of antenna panels is more accurate.

公开(公告)号：US20190334588A1

公开(公告)日：2019-10-31

申请号：US16504354

申请日：2019-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei HAN ,  Huangping JIN ,  Xiaoyan BI

IPC: H04B7/0417 ,  H04B7/06

Abstract: Embodiments of the present invention provide a channel information feedback method, a channel information determining method, a receive end device, and a transmit end device. The channel information feedback method includes: generating at least one piece of description information for each of a plurality of subbands included in a wideband, where each piece of description information is used to describe a description vector of a channel matrix corresponding to the subband, the description information includes at least one of a vector parameter and a weighting parameter; and sending the at least one piece of description information. The embodiments of the present invention further provide a channel information determining method, a receive end device, and a transmit end device. A precoding effect can be improved when precoding is performed based on the description vector fed back in the technical solutions provided in the embodiments of the present invention.

公开(公告)号：US20190268795A1

公开(公告)日：2019-08-29

申请号：US16410180

申请日：2019-05-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye WU ,  Huangping JIN ,  Xiaobo CHEN ,  Xiaoyan BI

IPC: H04W24/10 ,  H04L1/18 ,  H04L1/00

Abstract: Embodiments of the present disclosure provide a channel measurement method and user equipment. In one example method, a first transmission control information is received. A semi-persistent channel measurement is started when the first transmission control information meets a first preset condition, where the first preset condition includes at least one of the following conditions: the first transmission control information is associated with a radio network temporary identifier RNTI of a first preset type, and a value of a first group of information in the first transmission control information meets a first preset rule.

公开(公告)号：US20190222384A1

公开(公告)日：2019-07-18

申请号：US16367231

申请日：2019-03-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lu WU ,  Hongzhe SHI ,  Huangping JIN

IPC: H04L5/00 ,  H04W72/08 ,  H04W72/04 ,  H04B7/08

CPC classification number: H04L5/0048 ,  H04B7/063 ,  H04B7/0641 ,  H04B7/0695 ,  H04B7/088 ,  H04W16/28 ,  H04W72/046 ,  H04W72/085

Abstract: Embodiments provide a beam tracking method and system, a device, and a storage medium, and belongs to the field of communications technologies. The method includes: receiving a demodulation reference signal DMRS sent by a transmit end device; and feeding back an updated beam to the transmit end device when determining, based on the DMRS, that a beam deviation occurs. The method helps resolve a problem in the prior art that accuracy for determining an optimal beam is relatively low, and improve the accuracy for determining the optimal beam. This application is used for beam tracking.