公开(公告)号：US20130223295A1

公开(公告)日：2013-08-29

申请号：US13779103

申请日：2013-02-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seunghoon CHOI ,  Joonyoung CHO ,  Youngbum KIM ,  Hyoungju JI

IPC: H04W72/04

CPC classification number: H04W72/0413 ,  H04L1/1614 ,  H04L1/1635 ,  H04L1/18 ,  H04L1/1861 ,  H04L5/00 ,  H04L5/0055 ,  H04L5/14 ,  H04W72/00 ,  H04W72/0406 ,  H04W72/0446 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08

Abstract: A method for transmitting a physical channel in a Time Division Duplex (TDD) communication system capable of carrier aggregation is provided for supporting aggregation of carriers having different TDD configurations. The communication method of a terminal in a TDD radio communication system accomplishing broadband through carrier aggregation of primary and secondary cells, of which aggregated carriers have different TDD Uplink-Downlink (UL-DL) configurations, includes receiving Physical Downlink Shared Channel (PDSCH) through the secondary cell, and transmitting acknowledgement information corresponding to the PDSCH to a base station, where acknowledgement information is transmitted on a Physical Uplink Control CHannel (PUCCH) of the primary cell.

公开(公告)号：US20210336661A1

公开(公告)日：2021-10-28

申请号：US17366553

申请日：2021-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun KIM ,  Hyojin LEE ,  Hyoungju JI ,  Juho LEE ,  Joonyoung CHO

IPC: H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0456

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 a first channel state information reference signal (CSI-RS) and a second CSI-RS from a base station; generating channel state information (CSI) based on both the first CSI-RS and the second CSI-RS; and reporting the CSI to the base station, wherein the CSI includes a rank indicator (RI) and a channel quality indicator (CQI).

公开(公告)号：US20210029626A1

公开(公告)日：2021-01-28

申请号：US17069308

申请日：2020-10-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngbum KIM ,  Joonyoung CHO ,  Yongjun KWAK ,  Juho LEE ,  Hyojin LEE ,  Hyoungju JI ,  Younsun KIM ,  Sangmin RO ,  Seunghoon CHOI

IPC: H04W48/16 ,  H04W56/00 ,  H04W24/10

Abstract: A discovery signal transmission/reception method and an apparatus for improving energy efficiency of the system are provided. The discovery signal transmission method of a base station in a mobile communication system according to the present disclosure includes acquiring a discovery signal configuration of a neighbor cell, transmitting the discovery signal configuration to a terminal, receiving a measurement report including a result of measurement on a discovery signal of the neighbor from the terminal, the measurement being performed based on the discovery signal configuration, and determining whether to make a handover decision for the terminal based on the measurement report. The discovery signal transmission/reception method of the present disclosure is advantageous in improving energy efficiency of a mobile communication system.

公开(公告)号：US20200252110A1

公开(公告)日：2020-08-06

申请号：US16852985

申请日：2020-04-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun KIM ,  Hyojin LEE ,  Hyoungju JI ,  Juho LEE ,  Joonyoung CHO

IPC: H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0456

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 a first channel state information reference signal (CSI-RS) and a second CSI-RS from a base station; generating channel state information (CSI) based on both the first CSI-RS and the second CSI-RS; and reporting the CSI to the base station, wherein the CSI includes a rank indicator (RI) and a channel quality indicator (CQI).

公开(公告)号：US20200077346A1

公开(公告)日：2020-03-05

申请号：US16678590

申请日：2019-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yongjun KWAK ,  Joonyoung CHO ,  Hyoungju JI ,  Sangmin RO

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

Abstract: Methods and apparatuses are provided in which at least one parameter associated with a sidelink transmission is received from a base station. It is identified whether an uplink transmission is scheduled in a transmission time interval (TTI) in which a sidelink transmission to a second terminal is scheduled. The sidelink transmission is transmitted to the second terminal in the TTI in case that no uplink transmission is scheduled in the TTI. The sidelink transmission is transmitted based on a smaller transmission power value from two transmission power values.

公开(公告)号：US20180077635A1

公开(公告)日：2018-03-15

申请号：US15818078

申请日：2017-11-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngbum KIM ,  Joonyoung CHO ,  Yongjun KWAK ,  Juho LEE ,  Hyojin LEE ,  Hyoungju JI ,  Younsun KIM ,  Sangmin RO ,  Seunghoon CHOI

IPC: H04W48/16 ,  H04W24/10

CPC classification number: H04W48/16 ,  H04W24/10 ,  Y02D70/00 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146

Abstract: A discovery signal transmission/reception method and an apparatus for improving energy efficiency of the system are provided. The discovery signal transmission method of a base station in a mobile communication system according to the present disclosure includes acquiring a discovery signal configuration of a neighbor cell, transmitting the discovery signal configuration to a terminal, receiving a measurement report including a result of measurement on a discovery signal of the neighbor from the terminal, the measurement being performed based on the discovery signal configuration, and determining whether to make a handover decision for the terminal based on the measurement report. The discovery signal transmission/reception method of the present disclosure is advantageous in improving energy efficiency of a mobile communication system.

公开(公告)号：US20170346612A1

公开(公告)日：2017-11-30

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 ,  H04B7/06 ,  H04B7/0452 ,  H04B7/0456

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04L5/0023 ,  H04L5/0057 ,  H04W24/10

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：US20170331597A1

公开(公告)日：2017-11-16

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: H04L1/18 ,  H04W72/04 ,  H04W76/02 ,  H04W72/12

CPC classification number: H04L1/1887 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1861 ,  H04W72/0406 ,  H04W72/12 ,  H04W76/10

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：US20170207900A1

公开(公告)日：2017-07-20

申请号：US15470151

申请日：2017-03-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngbum KIM ,  Seunghoon CHOI ,  Joonyoung CHO ,  Hyoungju JI

IPC: H04L5/14 ,  H04L12/24 ,  H04W72/12 ,  H04L1/18

CPC classification number: H04L5/14 ,  H04L1/1812 ,  H04L1/1861 ,  H04L41/08 ,  H04W72/12 ,  H04W88/08

Abstract: A method of defining physical channel transmit/receiving timings and resource allocation is provided for use in a Time Division Duplex (TDD) communication system supporting carrier aggregation. A method for receiving, at a base station, a Hybrid Automatic Repeat Request (HARQ) acknowledgement from a terminal in a Time Division Duplex (TDD) system supporting carrier aggregation of a primary cell and at least one secondary cell includes transmitting a downlink physical channel through one of the primary and secondary cells, receiving the HARQ acknowledgement corresponding to the downlink physical channel of the primary cell at a first timing predetermined for the primary cell, and receiving the HARQ acknowledgement corresponding to the downlink physical channel of the secondary cell at second timing, wherein the second timing is determined according to the first timing.

公开(公告)号：US20160066304A1

公开(公告)日：2016-03-03

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: H04W72/04 ,  H04L5/14

CPC classification number: H04W72/042 ,  H04L5/0055 ,  H04L5/14 ,  H04L5/1469 ,  H04W56/00

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.

Abstract translation: 提供终端的方法，基站，终端和基站的方法。 所述终端的方法包括接收包括第一时分双工（TDD）配置信息的系统信息; 通过更高层的信令接收控制信息; 监视基于所述控制信息识别的第一子帧中的物理下行链路控制信道（PDCCH）; 以及基于所述监视结果识别第二TDD配置信息。 基站的方法包括发送包括第一时分双工（TDD）配置信息的系统信息; 通过较高层信令发送控制信息; 在基于所述控制信息识别的第一子帧中的物理下行链路控制信道（PDCCH）上发送下行链路控制信息，其中，所述下行链路控制信息用于识别第二TDD配置信息。