公开(公告)号：US11291002B2

公开(公告)日：2022-03-29

申请号：US16439337

申请日：2019-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Jeong Kang ,  Chi-Woo Lim ,  Jae-Weon Cho ,  Tae-Young Kim

IPC: H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04L25/02

Abstract: An apparatus and a method for operating a mobile station in a wireless communication system are provided. The method includes receiving first information transmitted on a secondary carrier from a base station, and transmitting second information for feedback related to the secondary carrier at a feedback region in a primary carrier based on the first information to the base station.

公开(公告)号：US11197298B2

公开(公告)日：2021-12-07

申请号：US16881603

申请日：2020-05-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae-Young Kim ,  Hyun-Kyu Yu ,  Jae-Weon Cho

IPC: H04B7/0417 ,  H04W72/04 ,  H04B7/06 ,  H04L5/00 ,  H04W88/08

Abstract: An apparatus and method for selecting the best beam in a wireless communication system are provided. An operation of a Base Station (BS) includes repeatedly transmitting reference signals beamformed with a first width, receiving a feedback signal indicating at least one preferred-beam having the first width from at least one terminal, determining a direction range within which reference signals beamformed with a second width are to be transmitted and a transmission pattern, based on the at least one preferred-beam having the first width, repeatedly transmitting the reference signals beamformed with the second width within the determined direction range according to the transmission pattern, and receiving a feedback signal indicating at least one preferred-beam having the second width from the at least one terminal.

公开(公告)号：US10945224B2

公开(公告)日：2021-03-09

申请号：US16362426

申请日：2019-03-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Kyu Yu ,  Tae-Young Kim ,  Jae-Weon Cho

IPC: H04L27/28 ,  H04W56/00 ,  H04W72/04 ,  H04W48/12 ,  H04W16/28

Abstract: A base station and terminal use methods of obtaining synchronization and system information in a wireless communication system. An operation of a base station includes generating a synchronization signal to be transmitted through a Synchronization Channel (SCH), generating a broadcast signal to be transmitted through a Broadcast Channel (BCH), and transmitting repetitively the SCH and the BCH by performing beamforming on the channels with different transmission beams.

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：US10374678B2

公开(公告)日：2019-08-06

申请号：US15752106

申请日：2016-08-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keon-Kook Lee ,  Young-Han Nam ,  Tae-Young Kim ,  Jee-Hwan Noh ,  Hyun-Il Yoo ,  Su-Ryong Jeong

IPC: H04L1/02 ,  H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04B7/0413

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transfer rate beyond a 4G communication system such as LTE. A method and an apparatus for transmitting and receiving channel state information are disclosed. The method comprises: a step of transmitting, to a terminal, a signaling message including first information indicating at least one precoding matrix which is applicable to a symbol vector to be transmitted; a step of transmitting, to the terminal, a channel status information-reference signal (CSI-RS) for the terminal; and a step of receiving channel state information including a channel quality indicator (CQI) which is calculated using the selected precoding matrix on the basis of second information from the terminal.

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：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.