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：US09155063B2

公开(公告)日：2015-10-06

申请号：US14597613

申请日：2015-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Kyungsoo Woo ,  Sukhyon Yoon ,  Hyowon Bae ,  Seunghee Han ,  Hyungsung Jung ,  Joonseok Maeng

IPC: H04W24/00 ,  H04W64/00 ,  G01S5/02 ,  G01S5/10 ,  H04W24/10 ,  H04W48/16

CPC classification number: H04W64/006 ,  G01S1/20 ,  G01S5/0221 ,  G01S5/0236 ,  G01S5/10 ,  H04W24/10 ,  H04W48/16 ,  H04W64/00

Abstract: A method of determining a position in a wireless communication system and apparatus thereof are disclosed. The present invention includes receiving system information including information on a reference cell and at least one neighbor cell from a location server, receiving positioning reference signals (PRSs) from the reference cell and the at least one neighbor cell using the system information, measuring reference signal time difference (RSTD) of each of the at least one neighbor cell for the reference cell, and transmitting the at least one measured RSTD to the location server. And, the RSTD is a relative timing difference between two cells. Moreover, the system information includes at least one cell for obtaining a system frame number (SFN) by the UE, as the reference cell or the at least one neighbor cell.