公开(公告)号：US10206178B2

公开(公告)日：2019-02-12

申请号：US15389360

申请日：2016-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Joongkwan Huh ,  Jaewook Song ,  Sukhyon Yoon ,  Kyuin Lee

IPC: H04B7/04 ,  H04W52/24 ,  H04B7/0413 ,  H04J11/00

Abstract: Provided are a method of selectively using an interference rejection combining (IRC) receiver by a user equipment (UE) in a wireless communication system, and an apparatus supporting the same. The UE may calculate a dominant interferer proportion (DIP) estimation parameter based on a covariance matrix, may estimate a DIP based on the DIP estimation parameter, and may determine whether to use the IRC receiver based on the estimated DIP and a DIP threshold.

公开(公告)号：US12047203B2

公开(公告)日：2024-07-23

申请号：US17594297

申请日：2019-05-08

Applicant: LG ELECTRONICS INC.

Inventor： Kyungsoo Woo ,  Kyuin Lee ,  Joongkwan Huh

IPC: H04L25/02 ,  H04J13/00 ,  H04L27/26

CPC classification number: H04L25/0204 ,  H04J13/0014 ,  H04L27/2607

Abstract: A method by which a first wireless device tracks a channel in a wireless AV system, according to one embodiment of the present invention, comprises the steps of: receiving a radio signal including a first part related to a preamble and a second part related to a data block and a GI; estimating an initial channel on the basis of the preamble; estimating a residual channel on the basis of the GI, wherein a reconstruction sequence reconstructed on the basis of a Golay sequence having a predetermined length is applied to the GI; and updating a channel on the basis of first information acquired on the basis of the initial channel estimation and second information acquired on the basis of the residual channel estimation.

公开(公告)号：US09793946B2

公开(公告)日：2017-10-17

申请号：US15322706

申请日：2014-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Joongkwan Huh ,  Jaewook Song ,  Hyungsung Jung ,  Sukhyon Yoon

IPC: H04B1/10 ,  H04B1/7115

CPC classification number: H04B1/7115 ,  H04B1/1081

Abstract: A disclosure of the present specification provides a rake receiver. The rake receiver may comprise: an oscillator; a radio frequency integrated circuit (RFIC) for processing analog signals, which are received after experiencing multipath propagation, according to a sampling clock generated by the oscillator and a carrier frequency clock; a rake processing unit for allocating fingers for each path to signals output from the RFIC, and then performing decoding, wherein the rake processing unit outputs information on a timing position through time tracking, a power metric sampled on-time, and the difference between a power metric at a half chip early-time and a power metric at a half chip late-time; and an auto frequency controller (AFC) for calculating a beta (β) value for adjusting the sampling clock of the oscillator according to the ratio of the difference between the power metric at the half chip early-time and the power metric at the half chip late-time to the power metric sampled on-time.

公开(公告)号：US11838168B2

公开(公告)日：2023-12-05

申请号：US17593774

申请日：2019-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Joongkwan Huh ,  Jaewook Song ,  Kyuin Lee

IPC: H04L5/00 ,  H04L27/26 ,  H04L27/38 ,  H04L27/34

CPC classification number: H04L27/3809 ,  H04L27/3427

Abstract: A method for supporting a receiving operation based on 2D-NUC performed by a first wireless device according to the present embodiment, comprises the steps of: receiving first and second input information from a second wireless device; performing equalization on the first and second input information; and generating LLR information on the basis of lookup table information predetermined for the equalized first and second input information and 2D-NUC.

公开(公告)号：US11743089B2

公开(公告)日：2023-08-29

申请号：US17758597

申请日：2020-01-31

Applicant: LG ELECTRONICS INC.

Inventor： Joongkwan Huh ,  Kyuin Lee ,  Jaewook Song ,  Kyungsoo Woo ,  Yoonsuk Oh

IPC: H04L27/26

CPC classification number: H04L27/2647

Abstract: The present specification relates to a reception apparatus and method for demodulating a signal in a wireless AV system. The reception apparatus estimates a transmission signal on the basis of an MMSE weight matrix. The reception apparatus divides the estimated transmission signal for respective reception antennas and performs an IFFT. The reception apparatus estimates and compensates for phase noise for the respective reception antennas on the basis of the signal for which the IFFT has been performed. The reception apparatus demodulates the estimated and compensated signal for respective streams.