公开(公告)号：US10944451B2

公开(公告)日：2021-03-09

申请号：US15560979

申请日：2016-03-14

Applicant: Samsung Electronics Co., Ltd

Inventor： Jong-Bu Lim ,  Ji-Yun Seol ,  Byung-Hwan Lee

IPC: H04B7/06 ,  H04B17/345 ,  H04B17/336 ,  H04L5/14 ,  H04W88/08

Abstract: The present invention relates to a 5th-generation (5G) or pre-5G communication system provided for supporting higher data transmission rates than 4th-generation (4G) communication system such as long term evolution (LTE). The present invention relates to a method in which an access point (AP) operates a full-duplex scheme in a communication system supporting a beam-forming scheme, the method comprising the steps of: generating a magnetic interference intensity table according to transmitted beam patterns and received beam patterns; determining, by the AP, a transmitted beam pattern and a received beam pattern for all stations (STAs) on the basis of channel measurement feedback information received from the stations, which provide service, and the electromagnetic-interference intensity table; and performing a communication operation with each of the stations on the basis of the determined transmitted beam pattern and received beam pattern.

公开(公告)号：US10484040B2

公开(公告)日：2019-11-19

申请号：US15149607

申请日：2016-05-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Bu Lim ,  Byung-Hwan Lee ,  Ji-Yun Seol ,  Tae-Young Kim ,  Min Sagong

IPC: H04L5/14 ,  H04N19/117 ,  H04J11/00 ,  H04B1/58

Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method for cancelling a self-interference (SI) signal in a communication system supporting a full-duplex scheme is provided. The method includes estimating an SI channel, performing a pre-filtering operation on a transmission signal based on the estimated SI channel, generating copied-SI signals based on the estimated SI channel, and cancelling an SI signal based on the copied-SI signals, wherein the pre-filtering operation includes an operation for decreasing a number of SI signals.

公开(公告)号：US10367659B2

公开(公告)日：2019-07-30

申请号：US15570647

申请日：2016-04-29

Applicant: Samsung Electronics Co., Ltd. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Keon-Kook Lee ,  Sun-Ho Park ,  Byonghyo Shim ,  Tae-Young Kim ,  Ji-Yun Seol

IPC: G01R31/08 ,  H04L25/02 ,  H04L25/03 ,  H04B7/0452 ,  H04W24/08

Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate beyond the 4G communication system, such as LTE. The present invention provides a method for estimating a downlink channel by a receiver in a wireless communication system, the method comprising: estimating the downlink channel on the basis of a reference signal to recover an information bit, and checking whether the information bit recovery has succeeded; and when the information bit recovery has not succeeded, selecting at least one of the received signals as a virtual reference signal on the basis of the accuracy of the data reconstructed at a related resource location and the correlation between the related resource location and a resource location related to the reference signal, and estimating the downlink channel on the basis of at least one virtual reference signal.

公开(公告)号：US10361765B2

公开(公告)日：2019-07-23

申请号：US14294044

申请日：2014-06-02

Applicant: Samsung Electronics Co., Ltd. ,  Korea Advanced Institute of Science and Technology

Inventor： Ji-Yun Seol ,  Hee-Seong Yang ,  Joo-Hwan Chun

IPC: H04B7/04 ,  H04B7/06 ,  H04W72/04

Abstract: One or more embodiments provide a method for controlling array antenna device in a base station (BS) in a communication system. The method includes determining whether to perform a calibration operation for BSs while operating in one of a normal mode and an interference control mode. The method also includes transiting from the one of the normal mode and the interference control mode to a calibration mode based on the determining result of whether to perform the calibration operation for the BSs. A reference antenna among antennas included in the array antenna device is used in all of the normal mode, the interference control mode, and the calibration mode.

公开(公告)号：US10306655B2

公开(公告)日：2019-05-28

申请号：US15418616

申请日：2017-01-27

Applicant: Samsung Electronics Co., Ltd

Inventor： Min Sagong ,  Yong-Ho Cho ,  Ji-Yun Seol ,  Yeo-Hun Yun

IPC: H04W72/04 ,  H04W72/08 ,  H04W74/08

Abstract: A method for determining an uplink (UL) channel quality by a base station (BS) includes obtaining a coverage class (CC) value of a user equipment (UE), receiving a random access (RA) signal from the UE, determining an UL channel quality of a band in which the RA signal is transmitted, based on the CC value and the RA signal, and generating UL resource allocation information based on the UL channel quality and transmitting the UL resource allocation information to the UE. The BS includes a transceiver configured to obtain a CC value of a UE and to receive a RA signal from the UE, and a controller configured to determine an UL channel quality of a band in which the RA signal is transmitted, based on the CC value and the RA signal. A UE includes determines a CC value of the UE based on a DL signal.

公开(公告)号：US10306633B2

公开(公告)日：2019-05-28

申请号：US15274431

申请日：2016-09-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yeo-Hun Yun ,  Chan-Hong Kim ,  Tae-Young Kim ,  Kyeong-Yeon Kim ,  Ji-Yun Seol ,  Yong-Ho Cho ,  Ming Hoka

IPC: H04L5/00 ,  H04W4/70 ,  H04W72/04 ,  H04W88/02

Abstract: A method for operating a resource in a base station (BS) in a wireless communication system supporting multi-carrier is disclosed. The method includes acquiring reference information related to at least one resource block (RB) to be allocated to a user equipment (UE), determining a RB type to be used in the at least one RB based on the reference information, and transmitting, to the UE, information related to the RB type to be used in the at least one RB. The present disclosure relates to a communication method and system for converging a 5th-generation (5G) communication system for supporting higher data rates beyond a 4th-generation (4G) system with a technology for internet of things (IoT), which may be applied to intelligent services based on the 5G communication technology and the IoT-related technology.

公开(公告)号：US10291352B2

公开(公告)日：2019-05-14

申请号：US15449794

申请日：2017-03-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung-Nam Hong ,  Tae-Young Kim ,  Ji-Yun Seol

IPC: H04L1/00 ,  G06F11/10 ,  H04L1/08 ,  H04L1/16 ,  H04L1/18 ,  H04L1/20

Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method for transmitting a signal in transmitting apparatus in a wireless communication system supporting a hybrid automatic repeat request (HARQ) scheme is provided. The method includes transmitting a signal to a receiving apparatus; detecting there is a need for a retransmission operation for the signal; and performing the retransmission operation for the signal based on at least one of a reception scheme used in the receiving apparatus or an interference characteristic of an interference signal.

公开(公告)号：US10237034B2

公开(公告)日：2019-03-19

申请号：US15508886

申请日：2015-09-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Seung Son ,  Kyeong-Yeon Kim ,  Chan-Hong Kim ,  Tae-Young Kim ,  Ji-Yun Seol ,  Keon-Kook Lee ,  Su-Ryong Jeong

IPC: H04L5/00 ,  H04B7/06 ,  H04W88/02 ,  H04W88/08

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A terminal in a wireless communication system according to an embodiment of the present invention comprises: a controller for determining a first size corresponding to a number of bits allocated for a first PMI (precoding matrix indicator) and a second size corresponding to a number of bits allocated for a second PMI; and a transmitting unit for transmitting feedback information, including the first PMI corresponding to the first size and the second PMI corresponding to the second size, to a base station.

公开(公告)号：US10230440B2

公开(公告)日：2019-03-12

申请号：US15496633

申请日：2017-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae-Young Kim ,  Hyun-Kyu Yu ,  Ji-Yun Seol

IPC: H04B7/06 ,  H04B7/0452 ,  H04B7/0456

Abstract: A communication method and an apparatus using beamforming in a wireless communication system are provided. The communication method includes determining a candidate user set including one or more Mobile Stations (MSs), for Multiple User-Multiple Input Multiple Output (MU-MIMO) transmission, transmitting beam information indicating best Base Station (BS) transmission beams of the MSs of the candidate user set to the MSs of the candidate user set, receiving Precoding Matrix Index (PMI) information indicating a PMI to be used for baseband precoding from each of the MSs of the candidate user set, the PMI information being determined based on the beam information, and transmitting a signal precoded based on the PMI information to at least one MS.

公开(公告)号：US10069665B2

公开(公告)日：2018-09-04

申请号：US14654798

申请日：2013-12-23

Applicant: Samsung Electronics Co., Ltd

Inventor： Hyun-Kyu Yu ,  Won-Il Roh ,  Jeong-Ho Park ,  Min Sagong ,  Ji-Yun Seol ,  Chi-Woo Lim ,  Kyung-Whoon Cheun ,  Jae-Weon Cho ,  Sung-Nam Hong

IPC: H04B1/00 ,  H04L27/10 ,  H04L1/18 ,  H04L27/34 ,  H04L1/00 ,  H04L27/00 ,  H04L27/32

CPC classification number: H04L27/10 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/1812 ,  H04L27/0008 ,  H04L27/32 ,  H04L27/34

Abstract: Disclosed is a method and device for transmitting and receiving a signal by using modulation techniques in a wireless communication system. The method according to the present invention includes: selecting one of QAM and improved QAM according to at least one predefined criterion; encoding information bits to be transmitted according to a first encoding scheme and mapping encoded information bits to QAM symbols when the QAM is selected; encoding information bits to be transmitted according to a second encoding scheme and mapping encoded information bits to improved QAM symbols when the improved QAM is selected; and transmitting the QAM symbols or the improved QAM symbols through a given resource region.