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公开(公告)号：US09894658B2
公开(公告)日：2018-02-13
申请号：US14885699
申请日：2015-10-16
Inventor： Gye Tae Gil , Ju Yong Lee , Dong Ho Cho , Dae Hee Park , Chang Bae Yoon , Sang Min Oh , Han Young Yim , Yong Hoon Lee
IPC: H04W72/04 , H04B7/04 , H04B7/0491 , H04B7/06
CPC classification number: H04W72/046 , H04B7/0491 , H04B7/0617
Abstract: Provided is a joint pattern beam sectorization method and apparatuses for performing the same, wherein the joint pattern beam sectorization method including generating, in a service target region, a pattern sector corresponding to an antenna array including antennas having an identical radiation pattern by using the antenna array and generating pattern beam sectors in the pattern sector through a beamforming using the antennas.
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公开(公告)号：US09923582B2
公开(公告)日：2018-03-20
申请号：US15264717
申请日：2016-09-14
Inventor： Yong Hoon Lee , Sang Il Lee , Min Hyun Kim , Young Wook Sirl , Eui Rim Jeong , Soon Il Hong , Jong Ok Ha , Seong Jin Kim
CPC classification number: H04B1/04 , H03F1/3247 , H03F3/195 , H03F3/245 , H03F3/68 , H03F2200/451 , H04B1/0475 , H04B2001/0425
Abstract: A high-frequency signal predistortion device includes a high-frequency signal estimator, a predistortion estimator, and a predistorter. The high-frequency signal estimator is configured to determine non-linear distortion characteristics of high-frequency signals transmitted by antennas. The predistortion estimator is coupled to the high-frequency signal estimator. The predistortion estimator is configured to determine a predistortion coefficient based on the non-linear distortion characteristics. The predistorter is coupled to the predistortion estimator. The predistorter is configured to distort a base signal of the high-frequency signals based on the predistortion coefficient.
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3.发明授权Low-cost digital predistortion apparatus and method using envelope detection feedback 有权低成本数字预失真设备和使用包络检测反馈的方法公开(公告)号：US09148093B2
公开(公告)日：2015-09-29
申请号：US14067421
申请日：2013-10-30
Inventor： Yong Hoon Lee , Jin Hyun So , Eui Rim Jeong , Sung Ho Choi , Seung Hyeok Ahn
CPC classification number: H03F1/3247 , H03F3/24 , H03F2200/102
Abstract: Disclosed herein is a low-cost digital predistortion apparatus using envelope detection feedback. The low-cost digital predistortion apparatus includes a digital predistortion unit and an envelope detection feedback unit. The digital predistortion unit converts the output of a predistorter into analog signals, frequency-modulates the analog signals into a pass band signal, and amplifies the frequency-modulated signal via a power amplifier. The envelope detection feedback unit converts the difference between the input and output of the power amplifier of the digital predistortion unit and the output of the power amplifier into baseband signals, respectively, converts the baseband signals into digital signals, estimates the nonlinear distortion characteristic output of the power amplifier, calculates a predistortion parameter that is used to compensate for the estimated nonlinear distortion characteristic output of the power amplifier.
Abstract translation: 这里公开了一种使用包络检测反馈的低成本数字预失真装置。 低成本数字预失真装置包括数字预失真单元和包络检测反馈单元。 数字预失真单元将预失真器的输出转换为模拟信号，将模拟信号频率调制成通带信号，并通过功率放大器放大调频信号。 包络检测反馈单元将数字预失真单元的功率放大器的输入和输出与功率放大器的输出之间的差分别转换为基带信号，将基带信号转换为数字信号，估计非线性失真特性输出 功率放大器，计算用于补偿功率放大器的估计的非线性失真特性输出的预失真参数。
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Patent Agency Ranking
公开(公告)号：US10305563B2
公开(公告)日：2019-05-28
申请号：US15742171
申请日：2016-05-24
Inventor： Gye Tae Gil , Dong Ho Cho , Ju Yong Lee , Dae Hee Park , Yong Hoon Lee , Sang Min Oh , Seung Won Keum
IPC: H04B7/06 , H04B7/0408 , H04B7/0452
Abstract: A massive antenna-based pattern/polarization beam division multiple access method and an apparatus performing the same are provided. The massive antenna-based pattern/polarization beam division multiple access method includes generating a plurality of beam sectors for each antenna array by using a plurality of pattern/polarization antenna arrays and performing MIMO transmission in each of the plurality of beam sectors, wherein the plurality of pattern/polarization antenna arrays each have a different radiation pattern.
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公开(公告)号：US09876472B2
公开(公告)日：2018-01-23
申请号：US15270375
申请日：2016-09-20
Inventor： Yong Hoon Lee , Eui Rim Jeong , Sang Il Lee , Soon Il Hong , Soon Chan Park , Kwang Pyo Lee , Jong Ok Ha
CPC classification number: H03F1/0216 , H03F1/0227 , H03F1/3247 , H03F3/20 , H03F3/245 , H03F2200/102 , H03F2200/324 , H03F2200/435 , H03F2200/516 , H03F2201/3224
Abstract: An apparatus includes a first predistorter configured to calculate a first predistortion parameter and configured to distort an input signal using the first predistortion parameter to output a first distortion signal, a second predistorter configured to calculate a second predistortion parameter and configured to distort the first distortion signal using the second predistortion parameter to output a second distortion signal, a power supply configured to receive the first distortion signal to generate a first envelope signal, and configured to limit a bandwidth of the first envelope signal to obtain a second envelope signal to supply a source voltage, and a power amplifier configured to receive the source voltage and to output an output signal obtained by amplifying the second distortion signal.
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6.发明授权Apparatus and method for operating analog beam in a beam division multiple access system 有权在光束分割多址系统中操作模拟波束的装置和方法公开(公告)号：US09450720B2
公开(公告)日：2016-09-20
申请号：US14304198
申请日：2014-06-13
Inventor： Jeong-Ho Park , Yong Hoon Lee , Min-Hyun Kim , Seong-Jin Kim , Hyun-Jeong Kang
CPC classification number: H04L5/0037 , H04B7/086 , H04B7/2643 , H04L5/0023 , H04W72/046
Abstract: A method and apparatus for operating an analog beam is provided. The apparatus includes a hybrid beam-forming structure having a small number of digital chains provided in a digital stage and a signal is transmitted and received in a Time Division Multiple Access (TDMA) scheme. The apparatus includes an analog beam-forming operating unit configured to change the analog beam for a counterpart device for which use of a next frame is to be permitted, upon receiving a request for using the next frame from at least one of multiple devices that transmit and receive signals in units of frames and a communication unit configured to transmit information indicating that the analog beam is changed to permit the use of the next frame by the counterpart device to the multiple devices.
Abstract translation: 提供了一种用于操作模拟光束的方法和装置。 该装置包括具有在数字级中提供的少量数字链的混合波束形成结构，并且以时分多址（TDMA）方案发送和接收信号。 该装置包括：模拟波束形成操作单元，被配置为在从发送的多个设备中的至少一个接收到使用下一帧的请求时，改变用于下一帧的允许的对方设备的模拟波束 并以帧为单位接收信号，通信单元被配置为发送指示模拟波束被改变的信息，以允许对方设备使用下一帧到多个设备。
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7.发明申请公开(公告)号：US20180205436A1
公开(公告)日：2018-07-19
申请号：US15742171
申请日：2016-05-24
Inventor： Gye Tae Gil , Dong Ho Cho , Ju Yong Lee , Dae Hee Park , Yong Hoon Lee , Sang Min Oh , Seung Won Keum
IPC: H04B7/06 , H04B7/0452 , H04B7/0408
CPC classification number: H04B7/0617 , H04B7/0408 , H04B7/0452 , H04B7/0456 , H04B7/10
Abstract: A massive antenna-based pattern/polarization beam division multiple access method and an apparatus performing the same are provided. The massive antenna-based pattern/polarization beam division multiple access method includes generating a plurality of beam sectors for each antenna array by using a plurality of pattern/polarization antenna arrays and performing MIMO transmission in each of the plurality of beam sectors, wherein the plurality of pattern/polarization antenna arrays each have a different radiation pattern.
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8.发明申请公开(公告)号：US20160219567A1
公开(公告)日：2016-07-28
申请号：US14885699
申请日：2015-10-16
Inventor： Gye Tae Gil , Ju Yong Lee , Dong Ho Cho , Dae Hee Park , Chang Bae Yoon , Sang Min Oh , Han Young Yim , Yong Hoon Lee
CPC classification number: H04W72/046 , H04B7/0491 , H04B7/0617
Abstract: Provided is a joint pattern beam sectorization method and apparatuses for performing the same, wherein the joint pattern beam sectorization method including generating, in a service target region, a pattern sector corresponding to an antenna array including antennas having an identical radiation pattern by using the antenna array and generating pattern beam sectors in the pattern sector through a beamforming using the antennas.
Abstract translation: 提供了一种联合图案波束分割方法及其执行方法，其中联合图案波束分割方法包括：在服务对象区域中，通过使用天线，生成与包括具有相同辐射图案的天线相对应的天线阵列的图形扇区 阵列并通过使用天线的波束成形在图案扇区中产生图案光束扇区。
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