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公开(公告)号：US11469846B2
公开(公告)日：2022-10-11
申请号：US17041716
申请日：2019-04-03
发明人： Hayoung Yang , Chongdon Kim , Ikbeom Lee , Joohyun Lee
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 relates to a method and device for decoding data by a base station in a wireless communication system, and the method of the present invention comprises the steps of: transmitting, by a base station, phase tracking reference signal (PTRS) allocation information, which includes PTRS port information and orthogonal cover code (OCC) information, to a terminal; receiving, from the terminal, a demodulation reference signal (DMRS) and a PTRS to which an OCC depending on the OCC information has been applied, so as to estimate phase noise; and compensating the phase noise to decode data received from the terminal.
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公开(公告)号：US20180183510A1
公开(公告)日：2018-06-28
申请号：US15850795
申请日：2017-12-21
发明人： Ikbeom Lee , Jinhwan Kang , Chongdon Kim , Hayoung Yang , Joohyun Lee
摘要： An interference cancellation method and apparatus of a base station is provided for use in a wireless communication system, which includes receiving a first signal by a first antenna and a second signal by a second antenna, measuring interference amounts in the first signal and the second signal based on a result of channel measurement performed on the first signal and the second signal, and generating a third signal as a target of decoding by adjusting channel parameters associated with channel conditions of the first antenna and the second antenna based on the measured interference amounts. The channel parameters are generated based on the channel measurement result.
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公开(公告)号：US11108458B2
公开(公告)日：2021-08-31
申请号：US16473916
申请日：2018-01-05
发明人： Joohyun Lee , Seijoon Shim , Hayoung Yang
摘要： This disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate after a 4G communication system such as LTE. An apparatus that combines a plurality of radio signals according to an embodiment of the present invention comprises: a plurality of antennas which receive the plurality of radio signals; a baseband modem which generates channel estimation information related to the plurality of radio signals and combines the plurality of radio signals on the basis of combining control information; and a controller which generates the combining control information on the basis of the channel estimation information and preset configuration information and transmits the combining control information to the baseband modem.
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公开(公告)号：US10448349B2
公开(公告)日：2019-10-15
申请号：US15754805
申请日：2016-08-31
发明人： Seijoon Shim , Hayoung Yang , Joohyun Lee , Soongyoon Choi
摘要： Provided are a cell ID determination method and apparatus for a receiving device in a wireless communication system. The cell ID determination method for a receiving device may include: receiving a first synchronization signal and a second synchronization signal; generating a first joint signal by concatenating the first synchronization signal and the second synchronization signal; calculating the correlation between the first joint signal and each of a preset number of cell IDs; and determining a cell ID using the calculated correlations.
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公开(公告)号：US10405286B2
公开(公告)日：2019-09-03
申请号：US15149725
申请日：2016-05-09
发明人： Seijoon Shim , Youngtaek Bae , Hayoung Yang , Joohyun Lee , Soong-Yoon Choi , Chanho Choi
摘要： A method of an electronic device is provided. The method includes receiving signals from adjacent base stations comprising a first base station and a second base station, respectively, detecting a first synchronization signal and a second synchronization signal for the first base station among the received signals, estimating a first signal corresponding to the detected first synchronization signal and second synchronization signal, eliminating the first signal among the signals received from the adjacent base stations, and detecting a second signal for the second base station.
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公开(公告)号：US10348522B2
公开(公告)日：2019-07-09
申请号：US15565575
申请日：2016-04-06
发明人： Yeongsam Kim , Youngkwan Choi , Hayoung Yang , Joohyun Lee
IPC分类号： H04L25/02 , H04L25/03 , H04B1/709 , H04L27/227 , H04L27/233 , H04B1/7093 , H04L1/00 , H04L27/01
摘要： The present invention relates to a device and a method for detecting a transmission signal in a wireless communication system, and a reception device in a wireless communication system comprises: a transceiver for receiving a signal from a transmitting end; a first correlator for performing a first correlation and outputting a real part among the results of the first correlation; a second correlator for performing a second correlation and outputting an imaginary part among the results of the second correlation; and a control unit for controlling the first correlator and the second correlator on the basis of a channel change rate so as to detect a transmission signal.
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公开(公告)号：US11700547B2
公开(公告)日：2023-07-11
申请号：US16960702
申请日：2019-01-17
发明人： Joohyun Lee , Hayoung Yang , Soongyoon Choi
IPC分类号： H04W28/06 , H04W24/10 , H04W72/0446 , H04W72/0453
CPC分类号： H04W28/06 , H04W24/10 , H04W72/0446 , H04W72/0453
摘要： A radio frequency (RF) unit, a digital unit, and methods of transmitting and receiving data in a wireless communication system are provided. The digital unit may include: a transceiver configured to receive compressed data from an RF unit, a processor configured to divide a frequency domain and a time domain into a plurality of blocks, set a compression parameter to be applied to each of the plurality of blocks, and expand the received data in units of the blocks based on the set compression parameter, and a memory storing the compression parameter.
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公开(公告)号：US11419075B2
公开(公告)日：2022-08-16
申请号：US16971905
申请日：2019-02-27
发明人： Seijoon Shim , Hayoung Yang , Chongdon Kim , Byungjoon Park , Myeongcheol Shin , Joohyun Lee , Chanho Choi
摘要： The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. A method for transmitting and receiving data comprises the steps of: receiving a first synchronization block over a first narrow band; identifying whether an indicator indicating that the first narrow band is not allocated to a terminal is included in the first synchronization block; and performing synchronization in the first narrow band if the indicator indicating that the first narrow band is not allocated to the terminal is not included in the first synchronization block.
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公开(公告)号：US10581649B2
公开(公告)日：2020-03-03
申请号：US16282110
申请日：2019-02-21
发明人： Hayoung Yang , Chongdon Kim , Joohyun Lee
摘要： Provided are an apparatus for supporting a plurality of wireless communication systems and an operating method of the same. The apparatus receives an integrated signal including a first wireless communication system signal and a second wireless communication system signal assigned to a certain frequency band, performs first processing on the integrated signal, performs second processing on the integrated signal, is scheduled to perform at least one of first interference cancellation (IC) process of canceling interference of the first wireless communication system signal from the integrated signal based on the signal on which first processing is performed or second IC process of canceling interference of the second wireless communication system signal from the integrated signal based on the signal on which second processing is performed, and performs at least one of the first IC process or the second IC process based on the scheduling.
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公开(公告)号：US10263824B2
公开(公告)日：2019-04-16
申请号：US14948797
申请日：2015-11-23
发明人： Youngtaek Bae , Hayoung Yang , Joohyun Lee
摘要： A method for estimating a frequency offset of a reception signal and, more particularly, a signal processing method which can be applied to a receiver modem in a wireless communication system, are provided. The method includes using an absolute value within a specific time area in an inverse discrete fourier transform (IDFT) output of a decorrelation signal between a reception signal and a reference signal, and enabling a highly approximate estimation of a frequency offset through only a single decorrelation test using a characteristic of a predetermined permutation of a signal.
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