公开(公告)号：US20130182683A1

公开(公告)日：2013-07-18

申请号：US13744162

申请日：2013-01-17

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04B7/0404 ,  H04B7/0695 ,  H04W72/046

Abstract: A method and apparatus perform Uplink (UL) beam tracking in a beamforming-based wireless communication system. A Mobile Station (MS) repeatedly transmits code sequences mapped respectively to MS transmit beams through each MS transmit beam as many times as the number of Base Station (BS) receive beams while sweeping the MS transmit beams. The MS receives, from a BS, transmit beam information indicating at least one best transmit beam selected from the MS transmit beams by the BS, and allocation information used to allocate UL resources for UL feedback. The MS transmits best beam information indicating the at least one best transmit beam and a MS identifier to the BS using the UL resources.

Abstract translation: 一种方法和装置在基于波束成形的无线通信系统中执行上行链路（UL）波束跟踪。 移动站（MS）在扫描MS发送波束的同时，重复发送分别映射到MS发射波束的码序列，通过每个MS发送波束多达基站（BS）接收波束的数量。 MS从BS接收指示由BS发送的MS发射波束中选择的至少一个最佳发射波束的波束信息，以及用于分配用于UL反馈的UL资源的分配信息。 MS使用UL资源向BS发送指示至少一个最佳发射波束和MS标识符的最佳波束信息。

公开(公告)号：US11552767B2

公开(公告)日：2023-01-10

申请号：US17353280

申请日：2021-06-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Kyu Yu ,  Jae-Won Kim ,  Jeong-Ho Park ,  Su-Ryong Jeong ,  Cheol Jeong

IPC: H04B7/0408 ,  H04B7/06 ,  H04L5/00

Abstract: A method and apparatus for transmitting and receiving data in a communication system using beamforming are provided. The transmission method includes transmitting a control channel signal in a control channel region of a subframe using a first transmission beam of a base station. The transmission method also includes transmitting a data signal during a predetermined time period of a data region after the control channel region in the subframe using a second transmission beam determined based on the first transmission beam. The transmission method further includes transmitting a data signal in a remaining data region following the predetermined time period using a scheduled transmission beam.

公开(公告)号：US10681694B2

公开(公告)日：2020-06-09

申请号：US15775297

申请日：2016-11-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Won Kim ,  Hyun-Kyu Yu ,  Yong-Seok Kim ,  Beom-Sik Bae

IPC: H04W72/04 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04W16/28 ,  H04W72/02 ,  H04B7/0413 ,  H04W74/00 ,  H04W74/02 ,  H04W74/08 ,  H04W72/12 ,  H04L5/00

Abstract: The present invention relates to a 5th-generation (5G) or pre-5G communication system to be provided to support a higher data transmission rate beyond a 4th-generation (4G) communication system such as long term evolution (LTE). The present invention relates to a method for performing a random access process by a base station in a communication system supporting a beamforming scheme, the method comprising the steps of: transmitting information on a reception beam corresponding to each unit time interval; performing, in each unit time interval, a reception beam sweeping process on the basis of the reception beam corresponding to each unit time interval; stopping the reception beam sweeping process when, in the process of performing the reception beam sweeping process, it is detected that a random access process should be performed with a UE in a specific unit time interval; and performing the random access process with the UE.

公开(公告)号：US10375733B2

公开(公告)日：2019-08-06

申请号：US13890551

申请日：2013-05-09

Applicant: Samsung Electronics Co. Ltd.

Inventor： Su-Ryong Jeong ,  Yeong-Moon Son ,  Hyun-Kyu Yu ,  Tae-Young Kim

IPC: H04W74/08 ,  H04B7/08 ,  H04B7/06 ,  H04W16/28

Abstract: A method of performing beamforming in a base station is provided. The method includes receiving random access channel signals transmitted in one or more transmit beams from a terminal, using one or more receive beams, determining at least one best transmit beam from the one or more transmit beams and at least one best receive beam from the one or more receive beams, and transmitting information about the best transmit beam and the best receive beam to the terminal.

公开(公告)号：US10368261B2

公开(公告)日：2019-07-30

申请号：US14707550

申请日：2015-05-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seung-Hoon Park ,  Hyun-Seok Ryu ,  Peng Xue ,  Hyun-Kyu Yu ,  Cheol Jeong ,  Sang-Won Choi

IPC: H04W24/10 ,  H04W56/00 ,  H04W88/04 ,  H04W76/14

Abstract: A synchronization method and an apparatus for Device-to-Device (D2D) communication in a User Equipment (UE) are provided. The method includes comparing a reception power of a signal received from an evolved Node B (eNB) with a first reference power, if the reception power is less than the first reference power, generating and transmitting a synchronization signal for D2D communication by operating as a synchronization reference UE, comparing the reception power of a signal received from the eNB with a second reference power, and if the reception power is greater than or equal to the first reference power and less than the second reference power, relaying a synchronization signal received from the eNB by operating as a synchronization relaying UE.

公开(公告)号：US10292139B2

公开(公告)日：2019-05-14

申请号：US13933000

申请日：2013-07-01

Applicant: Samsung Electronics Co., Ltd

Inventor： Hyun-Kyu Yu ,  Jeong-Ho Park ,  Ji-Yun Seol ,  Su-Ryong Jeong

IPC: H04W72/00 ,  H04W72/04 ,  H04W72/12 ,  H04B7/0408

Abstract: A method and an apparatus using beamforming in a wireless communication system are provided. The communication method includes detecting generation of uplink data to be transmitted from a Mobile Station (MS) to a Base Station (BS), and transmitting a scheduling request signal requesting uplink resource allocation in at least one channel region corresponding to uplink transmission and reception beams in an uplink resource area allocated to a scheduling request channel.

公开(公告)号：US10244494B2

公开(公告)日：2019-03-26

申请号：US15648355

申请日：2017-07-12

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：US10219232B2

公开(公告)日：2019-02-26

申请号：US14687144

申请日：2015-04-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Kyu Yu ,  Jeong-Ho Park ,  Cheol Jeong ,  Chang-Hyun Kim ,  Jae-Eun Kang ,  Kang-Jin Yoon

IPC: H04W24/08 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04 ,  H04W72/00 ,  H04B7/06 ,  H04W48/12 ,  H04W48/20

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 Long Term Evolution (LTE). An apparatus and a method for searching neighboring cells in a wireless communication system are provided. The method includes receiving, from adjacent base stations, a part of a first set of reference signals that are beamformed using different transmission beams arranged in a first order, the part of the first set of the reference signals being received during a first measurement interval in a first time interval, and receiving, from the adjacent base stations, a part of a second set of the reference signals that are beamformed using different transmission beams arranged in a second order, which is different from the first order, the part of the second set of the reference signals being received during a second measurement interval in a second time interval.

公开(公告)号：US10194465B2

公开(公告)日：2019-01-29

申请号：US15031253

申请日：2014-09-24

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

Inventor： Jung-Hoon Lee ,  Wan Choi ,  Hyun-Kyu Yu

IPC: H04B7/00 ,  H04W74/02 ,  H04B7/04 ,  H04L1/16 ,  H04B7/0452 ,  H04B7/0417 ,  H04J11/00 ,  H04L27/10 ,  H04B7/06

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 of transmitting feedback information by a receiving apparatus in a wireless communication system supporting a multiple input multiple output (MIMO) scheme is provided. The method includes transmitting, to a transmitting apparatus, an antenna group identifier (ID) of one or more antenna groups used by the transmitting apparatus and feedback information including information related to channel quality which the receiving apparatus is capable of acquiring if the one or more antenna groups are used, wherein each of the antenna groups includes one or more antennas.

公开(公告)号：US10148331B2

公开(公告)日：2018-12-04

申请号：US15491396

申请日：2017-04-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Kyu Yu ,  Tae-Young Kim ,  Jeong-Ho Park

IPC: H04B7/06 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W88/02

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 method for operating a terminal in a wireless communication system comprises transmitting, to a base station, at least one reference signal through at least one first transmission beam and if ACK information for the at least one reference signal is received from the base station, transmitting, to the base station, the at least one reference signal through at least one second transmission beam. A width of the at least one second transmission beam is greater than a width of the at least one first transmission beam.