公开(公告)号：US10484936B2

公开(公告)日：2019-11-19

申请号：US16207645

申请日：2018-12-03

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：US10455566B2

公开(公告)日：2019-10-22

申请号：US15589371

申请日：2017-05-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun Kim ,  Aris Papasakellariou ,  Kiil Kim ,  Juho Lee ,  Hyojin Lee ,  Joonyoung Cho

IPC: H04W72/04 ,  H04W72/02 ,  H04L5/00 ,  H04B7/0413 ,  H04W84/04

Abstract: A channel transmission/reception method and an apparatus for transmitting/receiving channels between a base station and a mobile terminal efficiently in a mobile communication supporting massive Multiple Input Multiple Output (MIMO) transmission are provided. The method includes determining a resource to which a Demodulation Reference Signal (DMRS) addressed to a terminal is mapped within a resource block, the DMRS resource being positioned in at least one of a first resource set capable of being allocated for DMRS and a second resource set symmetric with the first resource set on a time axis, and transmitting the DMRS and DMRS allocation information to the terminal.

公开(公告)号：US10314074B2

公开(公告)日：2019-06-04

申请号：US15463976

申请日：2017-03-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngbum Kim ,  Juho Lee ,  Joonyoung Cho

IPC: H04W74/00 ,  H04W74/08

Abstract: Apparatuses (including base stations and terminals), systems, and methods for supporting both wideband and narrowband communications are described. In one aspect, a base station supporting first type terminals operating on a first bandwidth and second type terminals operating on a second bandwidth is described, having an information formatter, a transceiver, and a controller. The information formatter generates a Low-end Master Information Block (L-MIB) and a Low-end System Information Block (L-SIB), which are transmitted by the transceiver to first type and second type terminals. The L-MIB includes control information on an L-subframe configuration for supporting a second type terminal and a sub-band configuration of the L-subframe, while the L-SIB includes information on downlink reception and uplink transmission of the second type terminal. When the base station receives a Random Access Channel (RACH) preamble request from one of the terminals, the base station performs the random access procedure.

公开(公告)号：US10142987B2

公开(公告)日：2018-11-27

申请号：US15496616

申请日：2017-04-25

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W72/04 ,  H04L1/00

Abstract: A method and an apparatus for operating a subframe and transmitting channel information for controlling interference in a communication system are provided. If a macro evolved Node B (eNodeB) determines and reports an uplink protection subframe for suppressing uplink transmission to a neighboring eNodeB, transmits scheduling information for uplink data through a downlink subframe corresponding to an uplink protection subframe, and the uplink protection subframe determined by the neighboring eNodeB is reported, a small eNodeB sets the reported uplink protection subframe as a flexible subframe, and uses the flexible subframe for downlink transmission. If the flexible subframe is used for the downlink transmission, a terminal of the small eNodeB measures and transmits non-period channel information in the flexible subframe through at least one uplink subframe.

公开(公告)号：US10142968B2

公开(公告)日：2018-11-27

申请号：US14866200

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：US10084589B2

公开(公告)日：2018-09-25

申请号：US15619903

申请日：2017-06-12

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04J3/00 ,  H04L5/14 ,  H04W72/12 ,  H04L7/06 ,  H04L5/00 ,  H04L1/18 ,  H04J3/16

CPC classification number: H04L5/14 ,  H04J3/1694 ,  H04L1/1854 ,  H04L1/1887 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0092 ,  H04L5/143 ,  H04L5/1469 ,  H04L7/06 ,  H04W72/1278

Abstract: A method for receiving control channel and an apparatus in a wireless communication system are provided. The method includes transmitting, at a base station, information on a primary cell operating in a frequency division duplexing (FDD) mode and a secondary cell operating in a time division duplexing (TDD) mode, transmitting, at the base station, downlink scheduling information for downlink data, transmitting, at the base station, the downlink data in a first subframe according to the downlink scheduling information, and receiving, at the base station, control information corresponding to the downlink data on the primary cell, from a terminal. The control information is transmitted using a physical uplink control channel (PUCCH) format determined based on a type of the first subframe of the secondary cell.

公开(公告)号：US10075277B2

公开(公告)日：2018-09-11

申请号：US15830910

申请日：2017-12-04

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04J3/00 ,  H04L5/00 ,  H04W72/04 ,  H04L5/14 ,  H04L1/18 ,  H04J3/16 ,  H04W28/10

CPC classification number: H04L5/0055 ,  H04J3/00 ,  H04J3/1694 ,  H04L1/1812 ,  H04L5/001 ,  H04L5/1415 ,  H04L5/1469 ,  H04W28/10 ,  H04W72/0413 ,  H04W72/042

Abstract: The present disclosure relates to a method and an apparatus for transmitting a control channel in an intra-cell carrier aggregation system. The method includes establishing a connection with a base station through a Primary cell (Pcell) of a Time Division Duplex (TDD) scheme and a Secondary cell (Scell) of a Frequency Division Duplex (FDD) scheme. The method also includes receiving data through the Scell before a timing configured as an uplink sub-frame according to a TDD UpLink-DownLink (UL-DL) configuration of the Pcell. The method also includes transmitting a feedback of the received data through the Pcell in a feedback sub-frame. By the method, a feedback for a data can be effectively transferred.

公开(公告)号：US09986537B2

公开(公告)日：2018-05-29

申请号：US14760337

申请日：2014-01-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04W72/04 ,  H04B7/06 ,  H04W72/08 ,  H04L5/00 ,  H04B7/024

CPC classification number: H04W72/0406 ,  H04B7/024 ,  H04B7/0626 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0073 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/085

Abstract: Disclosed are an apparatus for transmitting and receiving a downlink data in a wireless communications system supporting cooperation between transmission points and a method therefor. A method for transmitting a downlink data in a wireless communications system includes the steps of: transmitting the information on resources management collection including the CSI-RS information for measuring the terminal received bower to a terminal; receiving a report of the received power measurement of the CSI-RS corresponding to the resources management collection from the terminal; determining the measurement collection including the CSI-RS information for the terminal to infer a channel based on the received power measurement report; and transmitting the resources mapped with data to the terminal based on the measurement collection.

公开(公告)号：US09907027B2

公开(公告)日：2018-02-27

申请号：US14071124

申请日：2013-11-04

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W52/24 ,  H04L1/00 ,  H04W48/00 ,  H04W88/08 ,  H04B17/345

CPC classification number: H04W52/243 ,  H04B17/345 ,  H04L1/00 ,  H04W48/00 ,  H04W88/08

Abstract: Methods and apparatus are provided for transmitting and receiving control information, for interference detection by a User Equipment (UE), in a wireless communication system. A base station determines whether the UE supports interference-aware detection. When the UE supports interference-aware detection, the control information is generated that includes interference signal modulation scheme information and demodulation reference signal measurement information. The control information is transmitted to the UE. The interference at the UE is measured based on the received control information.

公开(公告)号：US09838183B2

公开(公告)日：2017-12-05

申请号：US15369567

申请日：2016-12-05

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04J3/00 ,  H04L5/00 ,  H04J3/16 ,  H04L5/14 ,  H04L1/18 ,  H04W72/04 ,  H04W28/10

Abstract: The present disclosure relates to a method and an apparatus for transmitting a control channel in an intra-cell carrier aggregation system. The method includes establishing a connection with a base station through a Primary cell (Pcell) of a Time Division Duplex (TDD) scheme and a Secondary cell (Scell) of a Frequency Division Duplex (FDD) scheme. The method also includes receiving data through the Scell before a timing configured as an uplink sub-frame according to a TDD UpLink-DownLink (UL-DL) configuration of the Pcell. The method also includes transmitting a feedback of the received data through the Pcell in a feedback sub-frame. By the method, a feedback for a data can be effectively transferred.