公开(公告)号：US20190363922A1

公开(公告)日：2019-11-28

申请号：US16536652

申请日：2019-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Amir DEZFOOLIYAN ,  Vignesh SETHURAMAN ,  Hamed MALEKI ,  Linbo LI ,  Kee-Bong SONG

IPC: H04L27/26

Abstract: A method and apparatus are provided. The method includes receiving a reference signal from a transceiver, estimating a time offset (TO) of the reference signal in the frequency domain based on a spectral phase ramp introduced by the TO, compensating the TO of the reference signal based on the estimated TO in the frequency domain by applying the spectral phase ramp to the received reference signal, and providing a TO compensated signal of the reference signal.

公开(公告)号：US20180234281A1

公开(公告)日：2018-08-16

申请号：US15586792

申请日：2017-05-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Amir DEZFOOLIYAN ,  Vignesh SETHURAMAN ,  Hamed MALEKl ,  Linbo LI ,  Kee-Bong SONG

IPC: H04L27/26

CPC classification number: H04L27/2662 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2675

Abstract: A method and apparatus are provided. The method includes receiving a reference signal from a transceiver, estimating a time offset (TO) of the reference signal in the frequency domain based on an accumulation of subcarriers before cross-correlation, providing a TO compensated signal of the reference signal based on the estimated TO in the frequency domain, transforming the TO compensated signal into the time domain, and estimating a frequency offset (FO) based on the time domain TO compensated signal.

公开(公告)号：US20170086133A1

公开(公告)日：2017-03-23

申请号：US14964212

申请日：2015-12-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kee-bong SONG ,  Shengshan CUI ,  Hairuo ZHUANG ,  Yangwen LIANG ,  Vignesh SETHURAMAN

IPC: H04W48/16 ,  H04W24/08 ,  H04W56/00 ,  H04B17/318

CPC classification number: H04W56/004 ,  H04B17/318 ,  H04B17/391 ,  H04B17/3911 ,  H04B17/3912 ,  H04W56/0035 ,  H04W56/0055

Abstract: Apparatuses (including user equipment (UE) and modem chips for UE), systems, and methods for calculating more accurate Reference Signal Received Power (RSRP) measurements and/or detecting/eliminating ghost cells from a list of (supposed) neighboring cells are described. In one method, the cross-correlations between adjacent Cell-specific Reference Signals (CRSs) are used to calculate the RSRP and to detect any ghost cells in a list of (supposed) neighboring cells. Any detected ghost cell may be deleted from any searches and measurements by the UE, and may also be reported to the network.