公开(公告)号：US10477489B2

公开(公告)日：2019-11-12

申请号：US15784868

申请日：2017-10-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yongjun Kwak ,  Joonyoung Cho ,  Hyoungju Ji ,  Sangmin Ro

IPC: H04W52/24 ,  H04W52/36 ,  H04W52/38 ,  H04W72/04

Abstract: Methods and apparatuses are provided for controlling power in a communication system. It is identified whether there is uplink transmission from a first UE. Sidelink transmission is transmitted from the first UE to a second UE based on a transmission power, if there is no uplink transmission from the first UE.

公开(公告)号：US10404420B2

公开(公告)日：2019-09-03

申请号：US15664350

申请日：2017-07-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyoungju Ji ,  Joonyoung Cho ,  Seunghoon Choi ,  Youngbum Kim ,  Juho Lee

IPC: H04W4/00 ,  H04L1/18 ,  H04W72/04 ,  H04W76/10 ,  H04W72/12

Abstract: A method and an apparatus for transmitting uplink/downlink data on time division duplexing (TDD) carriers are provided. The method includes transmitting to a base station in a primary cell (PCell) and a secondary cell (SCell), a TDD uplink (UL)/downlink (DL) configuration of the PCell having a DL subframe super-set or UL subset that are common in the SCell and the PCell and a TDD UL-DL configuration differing from each other, receiving data at a first subframe in the SCell, and transmitting, when a UL subframe set of the SCell is a subset of a UL subframe of the PCell, a feedback corresponding to the data at a subframe predefined in association with the first subframe in the PCell according to the TDD UL-DL configuration of the SCell. The method supports both the self-scheduling and cross-carrier scheduling of the UE using carriers of different TDD configurations.

公开(公告)号：US10299258B2

公开(公告)日：2019-05-21

申请号：US14625092

申请日：2015-02-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun Kim ,  Cheng Shan ,  Juho Lee ,  Hyojin Lee ,  Kiil Kim ,  Joonyoung Cho ,  Hyoungju Ji ,  Sangmin Ro ,  Seunghoon Choi

IPC: H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04B7/0456 ,  H04L5/00 ,  H04L1/02 ,  H04L27/00

Abstract: A method for transmitting control information by a base station in a wireless communication system is provided. The method includes determining a precoder to be applied to a resource and a Demodulation Reference Signal (DMRS) port, the resource being used to transmit the control information, and the DMRS port corresponding to the resource and being used to transmit a DMRS, precoding the resource and the DMRS port by using the determined precoder, and transmitting the control information and the DMRS to a user equipment.

公开(公告)号：US10299229B2

公开(公告)日：2019-05-21

申请号：US14864102

申请日：2015-09-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangmin Ro ,  Yongjun Kwak ,  Hyoungju Ji ,  Joonyoung Cho ,  Younsun Kim ,  Seunghoon Choi

IPC: H04W56/00

Abstract: Disclosed is a method by a terminal in a communication system, including attempting to acquire synchronization information from a cell, attempting to acquire synchronization information from another terminal, if the synchronization information from the cell is not acquired, and acquiring synchronization information by the terminal, if the synchronization information from the another terminal is not acquired.

公开(公告)号：USRE47374E1

公开(公告)日：2019-04-30

申请号：US15040930

申请日：2016-02-10

Applicant: Samsung Electronics Co., Ltd

Inventor： Jianzhong Zhang ,  Joonyoung Cho ,  Zhouyue Pi ,  Juho Lee ,  Aris Papasakellariou ,  Farooq Khan

IPC: H04L1/00 ,  H04L5/00 ,  H04L1/16

Abstract: Methods and apparatus for remapping and regrouping transmission resources in a wireless communication system. First, a set of new permutation algorithms based on Galois field operation is proposed. Then the proposed algorithms and the known Pruned Bit Reversal Ordering (PBRO) algorithm are applied to several of various resource mapping schemes, including slot or symbol level Orthogonal Cover (OC)/Cyclic Shift (CS) mapping, cell-specific slot-level and symbol-level CS hopping patterns, and subframe and slot level base sequence hopping patterns.

公开(公告)号：US10219260B2

公开(公告)日：2019-02-26

申请号：US14935926

申请日：2015-11-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyoungju Ji ,  Joonyoung Cho ,  Seunghoon Choi ,  Youngbum Kim

IPC: H04J3/22 ,  H04W72/04 ,  H04W56/00 ,  H04L5/00 ,  H04L5/14

Abstract: A method by a terminal, a method by a base station, a terminal, and a base station are provided. The method by the terminal includes receiving system information including first time division duplex (TDD) configuration information; receiving control information via a higher layer signaling; monitoring a physical downlink control channel (PDCCH) in a first subframe identified based on the control information; and identifying second TDD configuration information based on the monitoring result. The method by the base station includes transmitting system information including first time division duplex (TDD) configuration information; transmitting control information via a higher layer signaling; transmitting downlink control information on a physical downlink control channel (PDCCH) in a first subframe identified based on the control information, wherein the downlink control information is used to identify second TDD configuration information.

公开(公告)号：US10182353B2

公开(公告)日：2019-01-15

申请号：US13907081

申请日：2013-05-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngbum Kim ,  Juho Lee ,  Joonyoung Cho ,  Hyoungju Ji ,  Younsun Kim ,  Sangmin Ro ,  Seunghoon Choi

IPC: H04W16/14 ,  H04L5/00 ,  H04W52/32 ,  H04W52/14 ,  H04W52/24 ,  H04W52/34

Abstract: A physical channel transmission method using inter-eNB carrier aggregation is provided for improvement of peak data rate and system throughput in a wireless communication system. The physical channel transmission method of a terminal in a communication system supporting carrier aggregation includes receiving carrier aggregation configuration information from a network; aggregating a plurality of carriers according to the carrier aggregation configuration information; and transmitting an uplink control channel on a common uplink frequency on which a plurality of base stations join the carrier aggregation.

公开(公告)号：US10165554B2

公开(公告)日：2018-12-25

申请号：US14866117

申请日：2015-09-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyoungju Ji ,  Younsun Kim ,  Juho Lee ,  Joonyoung Cho

IPC: H04W72/04 ,  H04L5/00

Abstract: A control channel transmission/reception method and apparatus are provided. The control channel transmission method of a base station includes acquiring a criterion for sorting control channels, sorting the controls channels into at least two control channel sets based on the criterion, configuring the control channels by allocating at least one antenna port to each control channel set, and transmitting the control channels as configured.

公开(公告)号：US10153881B2

公开(公告)日：2018-12-11

申请号：US15675334

申请日：2017-08-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun Kim ,  Juho Lee ,  Hyojin Lee ,  Joonyoung Cho ,  Hyoungju Ji

IPC: H04L5/00 ,  H04W24/10 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0452

Abstract: A method and an apparatus for transmitting/receiving channel state information for use in multi-antenna system are provided. A signal communication method of a base station having a plurality of antennas in a wireless communication system includes determining antenna ports of first and second directions based on directions of the plurality of antennas, allocating channel measurement resources for the respective antenna ports to a terminal, transmitting a feedback configuration to the terminal according to the channel measurement resources, and receiving feedback information from the terminal based on the channel measurement resource and the feedback configuration. The signal transmission/reception method and apparatus are advantageous in transmitting/receiving channel state information efficiently in the system using a plurality of antennas.

公开(公告)号：US10038582B2

公开(公告)日：2018-07-31

申请号：US15255922

申请日：2016-09-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyoungju Ji ,  Younsun Kim ,  Youngbum Kim ,  Joonyoung Cho ,  Seunghoon Choi

IPC: H04J3/00 ,  H04L27/26 ,  H04B7/26 ,  H04L1/00 ,  H04L5/14 ,  H04W72/04

CPC classification number: H04L27/2602 ,  H04B7/2656 ,  H04L1/0061 ,  H04L5/1469 ,  H04W72/042

Abstract: A method and an apparatus for transmitting and receiving Time Division Duplex (TDD) frame configuration information are disclosed. The base station transmits TDD frame configuration information as system information to a user equipment through a common control channel so as to dynamically change the TDD frame configuration according to uplink and downlink traffic conditions. The base station may deliver the same system information to all user equipments in the cell, removing ambiguity in User Equipment (UE) operations and avoiding interference. In comparison to an existing method of delivering TDD frame configuration information through system information update, the disclosed method enables user equipments to rapidly cope with traffic changes. In addition, user equipments may receive and apply TDD frame configuration information at the same time.