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公开(公告)号：US20210352603A1
公开(公告)日：2021-11-11
申请号：US17385235
申请日：2021-07-26
发明人： Hoondong NOH , Youngwoo Kwak , Donghan Kim , Taehyoung Kim , Cheolkyu Shin , Seunghoon Choi , Younsun Kim
摘要： 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. The present invention provides a method and an apparatus which can achieve accurate time and frequency synchronization while reducing system load, in line with the design requirements for a 5G communication system. Particularly, the present invention provides a method for acquiring time and frequency synchronization by a terminal in a communication system, the method comprising the steps of: receiving a first synchronization signal from a base station; receiving a second synchronization signal from the base station; and receiving a channel state information-reference signal (CSI-RS) from the base station, and acquiring downlink time and frequency synchronization with the base station on the basis of the CSI-RS.
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92.发明授权公开(公告)号：US11134433B2
公开(公告)日：2021-09-28
申请号：US16727485
申请日：2019-12-26
发明人： Taehyoung Kim , Youngbum Kim , Jinyoung Oh , Seunghoon Choi , Heedon Gha , Taehan Bae
摘要： The 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). A method of a user equipment is provided. The method includes identifying a first bandwidth part for a cell and a second bandwidth part for the cell through a radio resource control signaling, wherein each of the first bandwidth part and the second bandwidth part is defined with a corresponding subcarrier spacing and frequency domain location; identifying a first control resource set on the first bandwidth part and a second control resource set on the second bandwidth part through the radio resource control signaling; and acquiring second downlink control information for the second bandwidth part based on the first control resource set on the first bandwidth part being activated.
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公开(公告)号：US11133914B2
公开(公告)日：2021-09-28
申请号：US16791365
申请日：2020-02-14
发明人： Jinkyu Kang , Younsun Kim , Youngbum Kim , Taehyoung Kim , Cheolkyu Shin , Seunghoon Choi
摘要： 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 performed by a terminal in a communication system is provided. The method includes receiving, from a base station, demodulation reference signal (DMRS) configuration information using higher layer signaling; receiving, from the base station, downlink control information for transmitting uplink data, the downlink control information including information on DMRS and resource allocation information for the uplink data; identifying a number of at least one DMRS symbol and respective position of the at least one DMRS symbol based on the information on DMRS and resource allocation information; and transmitting, to the base station, the uplink data and the DMRS based on the identified respective position of the at least one DMRS symbol.
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公开(公告)号：US11128506B2
公开(公告)日：2021-09-21
申请号：US16871474
申请日：2020-05-11
发明人： Cheolkyu Shin , Taehyoung Kim , Jinyoung Oh , Youngwoo Kwak , Seunghoon Choi
摘要： 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 by a terminal in a wireless communication system is provided. The method includes identifying a slot type of a terminal from a first slot type and a second slot type, determining a position of a demodulation reference signal (DMRS) based on the slot type, and receiving the DMRS based on the position from a base station.
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公开(公告)号：US11026265B2
公开(公告)日：2021-06-01
申请号：US16482583
申请日：2018-01-18
发明人： Taehyoung Kim , Youngbum Kim , Cheolkyu Shin , Hoondong Noh , Younsun Kim , Jeongho Yeo , Jinyoung Oh , Seunghoon Choi , Youngwoo Kwak
摘要： 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. The present invention provides a method and a device for a terminal transmitting/receiving a signal while executing random access in a communication system, and provides a method and a device for configuring the size of an RBG and a PRG.
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公开(公告)号：US10986616B2
公开(公告)日：2021-04-20
申请号：US16463658
申请日：2017-11-17
发明人： Donghan Kim , Jeongho Yeo , Younsun Kim , Juho Lee , Heedon Gha , Yongjun Kwak , Youngbum Kim , Taehyoung Kim , Sungjin Park , Jinyoung Oh , Seunghoon Choi
摘要： The present disclosure relates to a communication technique for fusing, with an IoT technology, a 5G communication system for supporting a higher data transfer rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety-related services, on the basis of 5G communication technologies and IoT-related technologies. Disclosed is a setting method for an efficient uplink signal transmission of a terminal in a case where a plurality of waveforms are supported to efficiently operate an uplink in a next generation mobile communication.
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97.发明授权公开(公告)号：US10973016B2
公开(公告)日：2021-04-06
申请号：US16420824
申请日：2019-05-23
发明人： Taehyoung Kim , Youngbum Kim , Seunghoon Choi
摘要： A method for receiving downlink control information (DCI) in a communication system is provided. The method includes identifying a starting resource block of the allocated resource associated with an active bandwidth part based on a starting resource block associated with the initial bandwidth part and a scaling parameter, when a size for the DCI of DCI format 1_0 in a user equipment (UE) specific search space (USS) is derived from a size of the initial bandwidth part and the DCI of DCI format 1_0 is applied to the active bandwidth part, and identifying a length of contiguously allocated resource blocks of the allocated resource associated with the active bandwidth part based on a length contiguously allocated resource blocks associated with the initial bandwidth part and the scaling parameter.
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公开(公告)号：US10965410B2
公开(公告)日：2021-03-30
申请号：US15106256
申请日：2014-12-16
发明人： Youngwoo Kwak , Younsun Kim , Jinyoung Oh , Hyojin Lee , Hyoungju Ji , Seunghoon Choi
IPC分类号： H04L5/00 , H04W72/04 , H04B7/04 , H04B7/06 , H04B7/0456
摘要： A method for transmitting and receiving channel state information at a terminal of a mobile communication system according to an embodiment of the preset specification comprises the steps of: determining at least one of first precoding information and first rank information corresponding to a first dimension; receiving, from a base station, a reference signal corresponding to a second dimension; determining at least one of second precoding information and second rank information corresponding to the second dimension, on the basis of the reference signal; and transmitting, to the base station, channel state information which has been determined on the basis of at least one of the first precoding information, the first rank information, the second precoding information and the second rank information. According to an embodiment of the present specification, it is possible to correctly transmit and receive pre-coding information and channel state information at a terminal and a base station including a plurality of antennas, and to reduce an overhead occurring at the time of transmission and reception.
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公开(公告)号：US10958493B2
公开(公告)日：2021-03-23
申请号：US16869884
申请日：2020-05-08
发明人： Hyoungju Ji , Younsun Kim , Youngbum Kim , Joonyoung Cho , Seunghoon Choi
摘要： 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.
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100.发明授权公开(公告)号：US10952199B2
公开(公告)日：2021-03-16
申请号：US16363637
申请日：2019-03-25
发明人： Taehyoung Kim , Youngbum Kim , Seunghoon Choi
摘要： A communication method and system for converging a 5G communication system for supporting higher data rates beyond a 4G system with a technology for Internet of Things (IoT) is disclosed. A method of a terminal in a wireless communication system is provided. The method includes receiving downlink control information (DCI) including frequency domain resource allocation information on a physical downlink control channel (PDCCH) from a base station, identifying an allocated resource for transmitting or receiving data based on the frequency domain resource allocation information, and transmitting or receiving the data on the allocated resource. When the frequency domain resource allocation information is based on a first bandwidth part of a first bandwidth and the DCI is for a second bandwidth part corresponding to a second bandwidth, the allocated resource is identified by applying a scaling factor based on the first bandwidth and the second bandwidth.
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