公开(公告)号：US20200220688A1

公开(公告)日：2020-07-09

申请号：US16826948

申请日：2020-03-23

Applicant: Samsung Electronics Co., Ltd.

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

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

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：US20200068492A1

公开(公告)日：2020-02-27

申请号：US16549999

申请日：2019-08-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwonjong LEE ,  Byungju LEE ,  Hyojin LEE ,  Younsun KIM ,  Juho LEE

IPC: H04W52/02 ,  H04W52/26

Abstract: A terminal may obtain a parameter related to energy consumption of the terminal, determine a bit resolution value of an analog-to-digital converter (ADC) of the terminal for reducing the energy consumption of the terminal, and set the bit resolution value of the ADC as the determined bit resolution value.

公开(公告)号：US20200045622A1

公开(公告)日：2020-02-06

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：US20190289630A1

公开(公告)日：2019-09-19

申请号：US16429647

申请日：2019-06-03

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：US20190268855A1

公开(公告)日：2019-08-29

申请号：US16408220

申请日：2019-05-09

Applicant: Samsung Electronics Co., Ltd

Inventor： Youngbum KIM ,  Yongjun KWAK ,  Jeongho YEO ,  Juho LEE

IPC: H04W52/14 ,  H04W72/04 ,  H04W52/24 ,  H04W52/50 ,  H04W88/06 ,  H04W52/38 ,  H04W52/36 ,  H04W52/28

Abstract: The present invention defines a method for controlling uplink transmission power of a terminal in a communication system which is operated by combining heterogeneous systems. Specifically, the present invention defines a method for selectively applying a power control command in order to control uplink power of a terminal in a communication system which is operated by combining an LTE/LTE-A system with a system which applies a new radio access technology, and a method for differently operating power control units depending on whether beam sweeping is applied or not. Such methods efficiently control transmission power of a terminal, and lower the generation of uplink interference signals, thereby improving system efficiency.

公开(公告)号：US20180279242A1

公开(公告)日：2018-09-27

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: 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：US20180176788A1

公开(公告)日：2018-06-21

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 ,  H04W8/24 ,  H04W28/26 ,  H04L27/26 ,  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：US20180167919A1

公开(公告)日：2018-06-14

申请号：US15841949

申请日：2017-12-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Taehyoung KIM ,  Yongjun KWAK ,  Donghan KIM ,  Juho LEE ,  Youngbum KIM ,  Seunghoon CHOI

IPC: H04W72/04 ,  H04L1/00 ,  H04W52/02 ,  H04W24/10 ,  H04W16/14

CPC classification number: H04W72/042 ,  H04L1/0039 ,  H04L5/0051 ,  H04L5/0053 ,  H04W16/14 ,  H04W24/10 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/21

Abstract: The present disclosure relates to a communication method and a 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) is provided. 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 decoding method for a terminal is provided. The method includes receiving a downlink control channel, receiving a reference signal in respective physical resource block (PRB) pairs, performing a correlation operation between a first sequence for the received reference signal and a second sequence for a predetermined reference signal for decoding the downlink control channel, and performing decoding of a search space for the downlink control channel in the PRB pair determined based on a result of the correlation operation.

公开(公告)号：US20180109353A1

公开(公告)日：2018-04-19

申请号：US15307999

申请日：2016-06-23

Applicant: Samsung Electronics Co., Ltd

Inventor： Yongjun KWAK ,  Youngbum KIM ,  Jeongho YEO ,  Juho LEE

IPC: H04L1/00 ,  H04L1/18 ,  H04W72/12 ,  H04L5/00

CPC classification number: H04L1/0038 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0082 ,  H04L5/0092 ,  H04L27/26 ,  H04L27/2602 ,  H04W72/1273 ,  H04W72/1289

Abstract: The present disclosure relates to a communication technique and a system thereof, which can combine a 5G communication system for supporting a higher data rate than that of a beyond 4G system with an IoT technology. The present disclosure may be applied to intelligent services on the basis of the 5G communication technology and 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 wireless communication system, in particular, a method and an apparatus for using downlink and uplink control channel transmission in a system that supports transmission/reception in a transmission timing interval that is shorter than 1 ms are provided to define physical channels that are necessary in the case of having a transmission timing interval that is shorter than 1 ms, in particular, a TTI of 1 OFDM symbol length, and to perform mapping of the physical channels on resource allocation and resource blocks.

公开(公告)号：US20170180096A1

公开(公告)日：2017-06-22

申请号：US15443703

申请日：2017-02-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngbum KIM ,  Joonyoung CHO ,  Jinkyu HAN ,  Juho LEE ,  Hyoungju JI ,  Seunghoon CHOI

IPC: H04L5/00 ,  H04L1/18 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04L5/0053 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0078 ,  H04L5/0098 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1284 ,  H04W72/1289

Abstract: Disclosed is a method for communication of a terminal in a communication system, including receiving downlink control information (DCI) for scheduling a second cell, transmitting uplink data corresponding to the DCI on a first subframe of the second cell, and receiving feedback information for the uplink data on a second subframe identified based on a time division duplex (TDD) uplink/downlink (UL/DL) configuration of a first cell, if the first cell and the second cell are configured for the terminal, and the TDD UL/DL configuration of the first cell and a TDD UL/DL configuration of the second cell are different, and the DCI for scheduling the second cell is received on the first cell.