公开(公告)号：US20210143877A1

公开(公告)日：2021-05-13

申请号：US17152805

申请日：2021-01-20

Applicant: Sony Corporation

Inventor： Jin XU ,  Cheng GAO ,  Siqi LIU ,  Chaonan HE ,  Jianfei CAO

IPC: H04B7/0456 ,  H04B7/04 ,  H04B7/06 ,  H04W24/08

Abstract: An electronic device at a base station end includes a processing circuit, the processing circuit being configured to: configure, in response to request signalling from a user equipment, an aperiodic beam-forming reference signal relevant to a first beam group for the user equipment, wherein the first beam group is determined by a base station according to channel state information periodically fed back by the user equipment; generate downlink control information, so as to indicate that the user equipment feeds back beam selection information according to the aperiodic beam-forming reference signal; determine, according to the beam selection information, one or a plurality of candidate beams and one or a plurality of corresponding second pre-coding codebooks; and determine an effective pre-coding codebook based on the one or multiple second pre-coding codebooks.

公开(公告)号：US20200313733A1

公开(公告)日：2020-10-01

申请号：US16902281

申请日：2020-06-16

Applicant: Sony Corporation

Inventor： Jin XU ,  Chaonan HE ,  Jianfei CAO

IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W24/10 ,  H04B17/309

Abstract: An electronic device for a base station in a wireless communication system comprising a processing circuitry configured to indicate a user equipment to report a first type of channel statement information based on a reference signal for the first type of channel statement information, wherein the base station serves the user equipment in a way of SU-MIMO, make a determination that a second type of channel statement information is required in a case that the base station changes the way serving the user equipment from SU-MIMO to MU-MIMO, and notify the user equipment to report the second type of channel statement information based on a reference signal for the second type of channel statement information.

公开(公告)号：US20180192459A1

公开(公告)日：2018-07-05

申请号：US15739817

申请日：2016-07-19

Applicant: SONY CORPORATION

Inventor： Jin XU ,  Xiaodong XU ,  Ce WANG ,  Yunqiu XIAO

IPC: H04W76/14 ,  H04W76/23 ,  H04W28/18

CPC classification number: H04W76/14 ,  H04L5/001 ,  H04W28/18 ,  H04W72/04 ,  H04W72/048 ,  H04W76/23

Abstract: An electronic device for wireless communications and a wireless communications method. The electronic device includes one or more processors. The processor is configured to determine the current carrier aggression status of first user equipment in response to a proximity-based service direct communication requirement of the first user equipment. The processor is further configured to determine a radio resource configuration of the first user equipment based on the carrier aggression status of the first user equipment, the radio resource configuration being used for proximity-based service direct communication of the first user equipment.

公开(公告)号：US20210368490A1

公开(公告)日：2021-11-25

申请号：US17257018

申请日：2019-07-17

Applicant: Sony Corporation

Inventor： Jin XU ,  Dongru LI ,  Wenjing REN ,  Xiaofeng TAO ,  Jianfei CAO

IPC: H04W72/04 ,  H04W72/08 ,  H04B7/06

Abstract: The present invention relates to a user equipment, an electronic device, a wireless communication method, and a storage medium. The user equipment according to the present invention comprises a processing circuit configured to: select G transmit beam groups from K transmit beams of a network side device; and sending information about the selected G transmit beam groups to the network side device, wherein each of the G transmit beam groups comprises N transmit beams, the user equipment is capable of simultaneously receiving downlink information that the network side device sends by using the N transmit beams, and K, N, G are all integers greater than 1. The use of the user equipment, the electronic device, the wireless communication method, and the storage medium according to the present invention can improve beam selection process in a system that uses a beamforming technique.

公开(公告)号：US20180316404A1

公开(公告)日：2018-11-01

申请号：US15770664

申请日：2016-10-31

Applicant: SONY CORPORATION

Inventor： Jin XU ,  Siqi LIU ,  Cheng GAO ,  Bingcheng JIN ,  Jinhui CHEN

IPC: H04B7/06 ,  H04W16/28 ,  H04L5/00 ,  H04W24/02 ,  H04W24/10 ,  H04W72/08

CPC classification number: H04W24/02

Abstract: A wireless communication device and a wireless communication method. A wireless communication device for use in a base station side includes one or more processors. The processor is configured to obtain a distribution state of a user equipment, and determine to use a channel state information-reference signal (CSI-RS) mechanism based on the distribution state of the user equipment. In addition, the processor is further configured to generate indication information, the indication information being used for indicating to the user equipment the CSI-RS to be used. Besides, the processor is further configured to control to send the CSI-RS to the user equipment according to the CSI-RS mechanism.