Invention Grant
- Patent Title: Method for determining precoder for hybrid beamforming in wireless communication system, and apparatus therefor
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Application No.: US15748344Application Date: 2016-03-17
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Publication No.: US10090899B2Publication Date: 2018-10-02
- Inventor: Kitae Kim , Jiwon Kang , Kilbom Lee , Heejin Kim , Kungmin Park
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- International Application: PCT/KR2016/002712 WO 20160317
- International Announcement: WO2017/018631 WO 20170202
- Main IPC: H04B7/02
- IPC: H04B7/02 ; H04B7/0456 ; H04B7/06

Abstract:
Disclosed in the present application is a method by which a terminal receives a signal, to which hybrid beamforming is applied, from a base station in a wireless communication system. More specifically, the method comprises the steps of: acquiring information on a first precoder for first beamforming of the hybrid beamforming; generating information on a precompensation precoder for the first beamforming by using the information on the first precoder; reporting the information on the precompensation precoder to the base station; and receiving, from the base station, a signal to which the precompensation precoder, the first beamforming, and second beamforming are applied, wherein the precompensation precoder adjusts, to zero degrees, a boresight direction of a signal to which the first precoder for the first beamforming is applied, and a second precoder for the second beamforming is configured to enable the signal to be transmitted in a final boresight direction on the basis of a boresight direction of zero degrees.
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