公开(公告)号：US11350354B2

公开(公告)日：2022-05-31

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：US11057259B2

公开(公告)日：2021-07-06

申请号：US16694932

申请日：2019-11-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jeongho Yeo ,  Youngbum Kim ,  Donghan Kim ,  Yongjun Kwak ,  Taehyoung Kim ,  Juho Lee ,  Younsun Kim ,  Seunghoon Choi ,  Sungjin Park ,  Jinyoung Oh ,  Youngwoo Kwak

IPC: H04L27/26 ,  H04L5/00 ,  H04W74/00 ,  H04W68/02 ,  H04W76/11 ,  H04W56/00 ,  H04L1/00 ,  H04L5/02 ,  H04W72/04 ,  H04W72/08 ,  H04W74/08 ,  H04W76/15 ,  H04W4/70 ,  H04W84/10 ,  H04W84/18

Abstract: A master information block (MIB) received by a terminal from a base station includes information associated with a first subcarrier spacing for at least one system information block (SIBx) (x=1, 2, 3, . . . ) and a random access response. The SIBx, received based on the first subcarrier spacing, includes information associated with a second subcarrier spacing for a physical random access channel (PRACH). A random access preamble is transmitted to the base station based on the second subcarrier spacing, and the random access response is received from the base station based on the first subcarrier spacing.

公开(公告)号：US10972991B2

公开(公告)日：2021-04-06

申请号：US16298963

申请日：2019-03-11

Applicant: Samsung Electronics Co., Ltd

Inventor： Hyoungju Ji ,  Yongjun Kwak ,  Younsun Kim ,  Sangmin Ro ,  Juho Lee

IPC: H04B7/00 ,  H04W56/00

Abstract: Disclosed is a method of transmitting/receiving a signal by a transmission device in a mobile communication system. The method includes: receiving information related to synchronization signals from a Base Station (BS); transmitting a first synchronization signal based on the received information; and receiving a second synchronization signal corresponding to the first synchronization signal based on the received information. When a UE cannot receive a synchronization signal from the BS or is located beyond a coverage of the BS, or when the BS cannot operate due to an emergency or disaster situation, UEs can configure self synchronization therebetween in a predetermined area without any assistance from the BS and thus broadcast and unicast transmission are possible between the UEs based on the synchronization.

公开(公告)号：US10812983B2

公开(公告)日：2020-10-20

申请号：US15737636

申请日：2016-06-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jeongho Yeo ,  Yongjun Kwak ,  Juho Lee ,  Youngbum Kim

IPC: H04W16/14 ,  H04L5/00 ,  H04L27/26 ,  H04W8/24 ,  H04W28/26 ,  H04W72/04

Abstract: Provided are a communication method and system that combine IoT technologies with 5G communication systems supporting a higher data rate after 4G systems. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart or connected cars, healthcare, digital education, retail businesses, and security and safety related services on the basis of 5G communication technologies and IoT related technologies. The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting uplink and downlink signals in a system supporting IoT terminals that perform transmission and reception using only one subcarrier. Specifically, there is provided a method including: allocating a resource for an IoT terminal; and exchanging a signal through a specific subcarrier of the resource between the IoT terminal and the base station supporting the IoT terminal.

公开(公告)号：US10805871B2

公开(公告)日：2020-10-13

申请号：US16598409

申请日：2019-10-10

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：US10701653B2

公开(公告)日：2020-06-30

申请号：US15571437

申请日：2016-05-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yongjun Kwak ,  Sangmin Ro ,  Juho Lee ,  Kyeongin Jeong

IPC: H04J3/06 ,  H04W56/00 ,  H04L5/00 ,  H04W24/08

Abstract: The present disclosure relates to a communication technique for converging IoT technology and a 5G communication system for supporting higher data transmission rate after a 4G system, and a system thereof. The present disclosure can be applied to an intelligent service (for example, a smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, and security and safety related service etc.) based on 5G communication technology and IoT related technology. The present invention relates to a signal receiving method and apparatus of a terminal in device-to-device wireless communication. In the present invention, a D2D reception terminal can measure a DM RS transmitted together with a PSBCH or detect energy with respect to the entirety of or a part of a symbol region through which the PSBCH or DM RS in a synchronization subframe can be transmitted so as to enable use as a criterion for determining whether to retry PSBCH decoding. When a DM RS measurement level or an energy detecting level is larger than a certain threshold value, the D2D reception terminal recognizes that the PSBCH has been transmitted and may retry the PSBCH decoding for a certain time or a certain number of times. When a DM RS measurement level or an energy detecting level is smaller than a certain threshold value, the D2D reception terminal recognizes that the PSBCH has not been transmitted and may not retry the PSBCH decoding. When the PSBCH decoding is not retried, the D2D reception terminal can try other PSSS/SSSS detection. Through the present invention, the D2D reception terminal can avoid inefficient operation of retrying the PSBCH decoding for a certain time or a certain number of times despite non-transmission of the PSBCH.

公开(公告)号：US20200084081A1

公开(公告)日：2020-03-12

申请号：US16684563

申请日：2019-11-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jeongho Yeo ,  Youngbum Kim ,  Donghan Kim ,  Yongjun Kwak ,  Taehyoung Kim ,  Juho Lee ,  Younsun Kim ,  Seunghoon Choi ,  Sungjin Park ,  Jinyoung Oh ,  Youngwoo Kwak

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04W74/08 ,  H04W68/02 ,  H04W76/15 ,  H04W74/00 ,  H04W72/04 ,  H04L5/02 ,  H04W72/08

Abstract: The present disclosure relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with an IoT technology and a system thereof. The system may be used for an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. The present disclosure discloses a method and apparatus for inserting an index into a code block as a unit in which a channel code is executed and transmitting the same.

公开(公告)号：US10568077B2

公开(公告)日：2020-02-18

申请号：US15974022

申请日：2018-05-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngbum Kim ,  Seunghoon Choi ,  Yongjun Kwak ,  Donghan Kim ,  Younsun Kim

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W72/06

Abstract: 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). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method whereby a terminal transmits hybrid automatic repeat request (HARQ) acknowledgement (ACK)/negative ACK (NACK) information corresponding to downlink data received from a corresponding base station is provided.

公开(公告)号：US10390335B2

公开(公告)日：2019-08-20

申请号：US15412711

申请日：2017-01-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seunghoon Choi ,  Jinyoung Oh ,  Jeongho Yeo ,  Youngbum Kim ,  Yongjun Kwak ,  Juho Lee

IPC: H04W72/04 ,  H04W16/14 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

Abstract: A communication method and a system for supporting a high data transmission rate are provided. The method and system fuses 5G communication systems with IoT technology to transmit data at a high rate after 4G systems. The communication method and system are applied to intelligent services, based on 5G communication technology and IoT related technology, for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security, safety-related services, etc. The method for transmitting control information by a user equipment (UE) includes generating uplink control information (UCI), identifying whether a physical uplink shared channel (PUSCH) is not configured to transmit on a primary cell (PCell), identifying whether the PUSCH is configured to transmit on at least one secondary cell (SCell) for licensed band, and transmitting, to a base station, the UCI according to the identification.

公开(公告)号：US09998940B2

公开(公告)日：2018-06-12

申请号：US14249026

申请日：2014-04-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yongjun Kwak ,  Youngbum Kim ,  Hyoungju Ji ,  Sangmin Ro

IPC: H04W24/10 ,  H04W8/00 ,  H04W72/08 ,  H04W76/02

CPC classification number: H04W24/10 ,  H04W8/005 ,  H04W72/082 ,  H04W76/14

Abstract: Methods and apparatuses are provided for Device-to-Device (D2D) communication in a wireless communication system. A terminal receives a D2D communication initiation message from a base station. The terminal measures strength of a received signal on a radio resource predetermined for use in the D2D communication. The terminal transmits a measurement report of the strength of the received signal to the base station. The terminal receives allocation of a resource in the radio resource for transmitting a discovery signal to another terminal for the D2D communication from the base station.