Invention Grant
- Patent Title: Wireless communication device, terminal device, and method
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Application No.: US16690136Application Date: 2019-11-21
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Publication No.: US10998947B2Publication Date: 2021-05-04
- Inventor: Nishiki Mizusawa
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Xsensus LLP
- Priority: JPJP2015-105519 20150525
- Main IPC: H04B7/0452
- IPC: H04B7/0452 ; H04B7/0456 ; H04B7/06 ; H04W72/04 ; H04W16/28 ; H04W24/10 ; H04B7/0417

Abstract:
A wireless communication device including a control unit configured to generate information for a terminal device based on information acquired from the terminal device. The control unit outputs a reference signal on a first beam generated with at least two or more different first weighting matrices, generates a second weighting matrix specific to a terminal device in accordance with information transmitted from the terminal device in accordance with the reference signal, and outputs data for the terminal device on a second beam with the first weighting matrices and the second weighting matrix. The wireless communication device can supply an appropriate beam to a terminal device while preventing a problem with overhead or increase in the cost of a wireless device, which are caused by an increasing number of antenna elements when FD-MIMO is used.
Public/Granted literature
- US20200091972A1 WIRELESS COMMUNICATION DEVICE, TERMINAL DEVICE, AND METHOD Public/Granted day:2020-03-19
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