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公开(公告)号：US10925085B2
公开(公告)日：2021-02-16
申请号：US15769897
申请日：2016-12-28
Inventor： Jung Sun Um , Hoiyoon Jung , Seung Keun Park , Sungjin Yoo
IPC: H04W72/14 , H04L5/00 , H04L27/26 , H04L27/00 , H04W72/12 , H04W16/14 , H04W72/04 , H04W84/12 , H04W74/08 , H04L25/02
Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
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2.发明授权Method and apparatus for impulsive noise mitigation using adaptive blanker based on BPSK modulation system 有权基于BPSK调制系统的自适应滤波器的脉冲噪声抑制方法和装置公开(公告)号：US09118370B2
公开(公告)日：2015-08-25
申请号：US14255319
申请日：2014-04-17
Applicant: Electronics and Telecommunications Research Institute , Industry-University Cooperation Foundation Hanyang University
Inventor： Seung Keun Park , Sang Bong Jeon , Su Na Choi , Haewoon Nam , Hyungkook Oh
CPC classification number: H04B1/0475 , H04B1/1027
Abstract: A method for impulsive noise mitigation using an adaptive blanker based on BPSK modulation system includes estimating narrowband Middleton parameters of impulsive noise from signals received for a fixed time period; calculating a threshold using the estimated narrowband Middleton parameters; operating the first blanker to suppress impulsive noise from the signal received at a given point of time through the comparison of the SNR value of the received signal and the threshold. Further, the method includes operating the second blanker to suppress impulsive noise from the received signal through the comparison of the summation of the threshold and the SNR value with an absolute value of the received signal, when the SNR value is above the threshold.
Abstract translation: 使用基于BPSK调制系统的自适应消隐器的脉冲噪声抑制方法包括：从固定时间段内接收的信号估计脉冲噪声的窄带米德尔顿参数; 使用估计的窄带米德尔顿参数计算阈值; 通过比较接收信号的SNR值和阈值，操作第一消隐器以抑制从给定时间点接收到的信号的脉冲噪声。 此外，当SNR值高于阈值时，该方法包括操作第二消隐器以通过将阈值和SNR值的求和与接收信号的绝对值进行比较来抑制来自接收信号的脉冲噪声。
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公开(公告)号：US11589381B2
公开(公告)日：2023-02-21
申请号：US17176175
申请日：2021-02-15
Inventor： Jung Sun Um , Hoiyoon Jung , Seung Keun Park , Sungjin Yoo
IPC: H04W72/14 , H04W16/14 , H04W72/04 , H04L5/00 , H04L27/26 , H04L27/00 , H04W72/12 , H04W72/0446 , H04W84/12 , H04W74/08 , H04L25/02
Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
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4.发明授权公开(公告)号：US10673576B2
公开(公告)日：2020-06-02
申请号：US15576739
申请日：2016-08-05
Inventor： Jung Sun Um , Sung Jin Yoo , Hoi Yoon Jung , Seung Keun Park
Abstract: An operating method of a communication node in a network supporting licensed and unlicensed bands is disclosed. An operation method of a base station comprises the steps of: transmitting a PDSCH to a UE in an unlicensed band; receiving an HARQ response to the PDSCH from the UE; and determining a size of a CW on the basis of a proportion of NACKs in HARQ responses. Therefore, a performance of a communication network can be improved.
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公开(公告)号：US10595335B2
公开(公告)日：2020-03-17
申请号：US15573753
申请日：2016-10-31
Inventor： Hoi Yoon Jung , Jung Sun Um , Sung Jin Yoo , Seung Keun Park
Abstract: A scheduling method for a communication network supporting an unlicensed band is disclosed. An operation method of UE comprises the steps of: receiving, from a base station, an unlicensed band burst including a plurality of subframes in an unlicensed band; acquiring control information from the unlicensed band burst; and acquiring data from the unlicensed band burst on the basis of the control information. Therefore, the performance of the communication network can be improved.
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Patent Agency Ranking
公开(公告)号：US10135594B2
公开(公告)日：2018-11-20
申请号：US15234278
申请日：2016-08-11
Inventor： Hoi Yoon Jung , Sung Jin Yoo , Jung Sun Um , Seung Keun Park
Abstract: Disclosed is a scheduling method for a communication network supporting an unlicensed band. An operation method of a user equipment (UE) may comprise obtaining a control channel from a partial subframe having a length of less than 1 millisecond in an unlicensed band; obtaining scheduling information from the control channel; and obtaining a data channel indicated by the scheduling information from the partial subframe. Therefore, performance of the communication network can be enhanced.
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7.发明授权公开(公告)号：US09473180B2
公开(公告)日：2016-10-18
申请号：US14946255
申请日：2015-11-19
Inventor： Kyu Min Kang , Seung Keun Park , Jae Cheol Park , Jung Sun Um
Abstract: Disclosed is an apparatus for converting a frequency. The apparatus includes: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a second oscillation frequency which is obtained by adding the input frequency to a carrier frequency of any one carrier signal among a (n+1)-th to a 2n-th carrier signals; and a mixer configured to mix and output the first oscillation signal or the second oscillation signal with an input signal having the input frequency.
Abstract translation: 公开了一种用于转换频率的装置。 该装置包括：振荡器，被配置为产生具有第一振荡频率的第一振荡信号，所述第一振荡频率通过从第一至第n载波信号中的任何一个载波信号的载波频率中减去输入频率而获得（n是自然的 并且生成具有第二振荡频率的第二振荡信号，所述第二振荡频率通过将输入频率与第（n + 1）至第2n载波信号中的任何一个载波信号的载波频率相加而获得; 以及混频器，被配置为利用具有输入频率的输入信号混合并输出第一振荡信号或第二振荡信号。
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公开(公告)号：US11510214B2
公开(公告)日：2022-11-22
申请号：US17186245
申请日：2021-02-26
Inventor： Jung Sun Um , Bong-Su Kim , Igor Kim , Seung Keun Park
Abstract: A method of generating shared information includes determining an attenuation effect on transmission power of a new radio station due to a reception mask of an existing radio station, calculating an interference effect of the existing radio station due to the new radio station using the attenuation effect, determining a protection domain of the existing radio station according to the interference effect, and generating shared information to be used by the new radio station based on the protection domain, wherein the protection domain is a domain in which a frequency available to the new radio station is restricted.
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公开(公告)号：US11140690B2
公开(公告)日：2021-10-05
申请号：US15771362
申请日：2017-01-26
Inventor： Jung Sun Um , Hoiyoon Jung , Sungjin Yoo , Seung Keun Park
Abstract: A method for transmitting an uplink signal in an unlicensed band by a terminal is provided. The terminal receives first scheduling information that schedules one or more uplink subframes, from a base station in a first downlink subframe. The terminal receives second scheduling information that determines a transmission time point of the uplink signal, from the base station in a second downlink subframe after the first downlink subframe. The terminal transmits the uplink signal in a first uplink subframe corresponding to the transmission time point among the one or more uplink subframes.
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公开(公告)号：US11050506B2
公开(公告)日：2021-06-29
申请号：US16275096
申请日：2019-02-13
Inventor： Jung Sun Um , Igor Kim , Seung Keun Park , Hyeyeon Kwon , Yunbae Kim , Young Hwan Lee
Abstract: An apparatus for analyzing a frequency use status may obtain a candidate radio network temporary identifier (RNTI) using downlink control information (DCI), estimate an active RNTI from the candidate RNTI, and analyze a frequency use status using the active RNTI.
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