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公开(公告)号：US09893772B2
公开(公告)日：2018-02-13
申请号：US14442358
申请日：2013-08-14
申请人： LG ELECTRONICS INC.
发明人： Kitae Kim , Jinmin Kim , Hyunsoo Ko , Jaehoon Chung
CPC分类号： H04B7/01 , H04B17/104 , H04L5/0044 , H04L5/0048 , H04L5/005 , H04L5/0051 , H04L5/0053 , H04L25/0204 , H04L25/0224 , H04L25/03898
摘要： A method for transmitting a reference signal to a user equipment at a base station in a wireless communication system is disclosed. The method includes transmitting a control channel and the reference signal having a first pattern for the control channel to the user equipment and transmitting a data channel and the reference signal having a second pattern for the data channel to the user equipment, wherein reference signal density of the second pattern is determined based on a coherence time of the data channel, and the first pattern includes the second pattern.
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42.发明授权公开(公告)号：US09876589B2
公开(公告)日：2018-01-23
申请号：US15513062
申请日：2015-06-02
申请人： LG ELECTRONICS INC.
发明人： Genebeck Hahn , Jaehoon Chung , Eunjong Lee , Jinmin Kim , Kukheon Choi , Kwangseok Noh , Sangrim Lee
IPC分类号： H04J11/00 , H04B17/24 , H04B17/345 , H04W16/28 , H04W24/10
CPC分类号： H04B17/24 , H04B17/345 , H04J11/0026 , H04W16/24 , H04W16/28 , H04W24/10
摘要： According to one embodiment of the present invention, a method by which a fixed base station adjusts inter-cell interference in a wireless communication system comprises the steps of: receiving channel state information-reference signal (CSI-RS) configurations on an access link of each moving cell connected to the fixed base station; determining the CSI-RS configuration on a backhaul link of a first moving cell among the moving cells on the basis of the CSI-RS configurations on the access link; and providing, to the first moving cell, the CSI-RS configuration on the determined backhaul link, wherein the CSI-RS configuration on the determined backhaul link is for measuring, by the backhaul link of the first moving cell, the interference received from an access link of a second moving cell among the moving cells.
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公开(公告)号：US09871647B2
公开(公告)日：2018-01-16
申请号：US14715293
申请日：2015-05-18
发明人： Jinmin Kim , Byung-Wook Min , Donghyun Lee , Jaehoon Chung , Kwangseok Noh
CPC分类号： H04L5/1461 , H04B1/123
摘要： The apparatus includes a transmission signal divider for dividing and transmitting a received signal to a transmission antenna and an attenuator, an attenuator for applying a predetermined attenuation factor to the transmitted signal divided to the attenuator, a phase shifter for phase-shifting the signal to which the attenuation factor is applied by a predetermined phase, and a time delayer for time-delaying the phase-shifted signal by a predetermined time.
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44.发明授权公开(公告)号：US09866303B2
公开(公告)日：2018-01-09
申请号：US14767892
申请日：2014-03-11
申请人： LG ELECTRONICS INC.
发明人： Hyunsoo Ko , Jiwon Kang , Jaehoon Chung
CPC分类号： H04B7/0626 , H04B7/0456 , H04B7/0469 , H04B7/0617 , H04B7/063 , H04B7/0632 , H04B7/0634 , H04B7/0639 , H04B7/0665 , H04L5/0048 , H04W24/10 , H04W72/0413
摘要： The present invention relates to a wireless communication system and, more specifically, to a method and device for reporting channel state information (CSI). The method by which a terminal in a wireless communication system reports CSI, according to one embodiment of the present invention, can comprise the steps of: receiving a reference signal from a base station; and reporting, to the base station, the CSI generated by using the reference signal. The CSI can include at least one first domain precoding matrix indicator (PMI) indicating a first precoding matrix for a first domain of a two-dimensional antenna structure and at least one second domain PMI indicating a second precoding matrix for a second domain of the two-dimensional antenna structure. A reporting period of the at least one first domain PMI can be shorter than a reporting period of the at least one second domain PMI.
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公开(公告)号：US09843423B2
公开(公告)日：2017-12-12
申请号：US14902774
申请日：2014-06-25
申请人： LG ELECTRONICS INC.
发明人： Jiwon Kang , Kilbom Lee , Hyunsoo Ko , Jaehoon Chung
IPC分类号： H04L5/00 , H04B7/06 , H04B7/0456 , H04W72/04
CPC分类号： H04L5/0048 , H04B7/0456 , H04B7/0617 , H04B7/0626 , H04W72/046
摘要： A method for receiving a signal from a base station by a user equipment, using beamforming based on a massive antenna array of the base station in a wireless communication system is disclosed. The method includes configuring an effective antenna array in the massive antenna array, receiving a pilot signal corresponding to the effective antenna array from the base station, reporting channel state information for beamforming to the base station, using the pilot signal, and receiving a user equipment-specifically beamformed signal through the effective antenna array from the base station, wherein the effective antenna array is defined as one or more horizontal antenna ports and one or more vertical antenna ports.
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公开(公告)号：US09831932B2
公开(公告)日：2017-11-28
申请号：US14888383
申请日：2014-04-30
申请人： LG ELECTRONICS INC.
发明人： Jiwon Kang , Kilbom Lee , Hyunsoo Ko , Jaehoon Chung
CPC分类号： H04B7/0617 , H04B7/063 , H04B7/0689 , H04B7/0691 , H04L5/0048
摘要： Disclosed is a method for transmitting, by a terminal, feedback information to a network for partial beamforming based on a multi-antenna in a wireless communication system. Specifically, the method comprises: a step of receiving, from the network, reference signals corresponding to antenna sections included in the multi-antenna; a step of selecting one or more beamforming mode among beamforming modes included in a candidate beamforming mode set on the basis of the reference signals, and forming feedback information related to the selected one or more beamforming modes; and a step of transmitting the feedback information to the network, and the feedback information includes a pre-coding matrix index corresponding to at least one of the antenna sections and connection coefficient information for connecting the antenna sections.
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47.发明授权公开(公告)号：US09819406B2
公开(公告)日：2017-11-14
申请号：US15462714
申请日：2017-03-17
申请人： LG ELECTRONICS INC.
发明人： Hyunsoo Ko , Sunam Kim , Dongguk Lim , Moonil Lee , Jaehoon Chung
IPC分类号： H04B7/02 , H04B7/0456 , H04L5/00 , H04W72/04
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/0469 , H04B7/0478 , H04B7/0486 , H04B7/0617 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04B7/10 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04L5/001 , H04L5/0023 , H04L5/0053 , H04L5/0057 , H04L5/006 , H04L25/03343 , H04L2025/03426 , H04L2025/03808 , H04W48/08 , H04W72/00 , H04W72/0413 , H04W72/0446
摘要： A method for transmitting channel status information (CSI) via uplink in a wireless communication system includes transmitting a first precoding matrix indicator (PMI) and a second PMI at a subframe. A subsampled codebook for each of a precoding codebook for Rank-1 and a precoding codebook for Rank-2 is determined based on at least the first PMI or the second PMI. In case of the Rank-1 or the Rank-2, a number of elements for the first PMI is 8.
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公开(公告)号：US09794037B2
公开(公告)日：2017-10-17
申请号：US14767075
申请日：2013-08-20
申请人： LG ELECTRONICS INC.
发明人： Kitae Kim , Jinmin Kim , Hyunsoo Ko , Jaehoon Chung
CPC分类号： H04L5/0048 , H04L5/0007 , H04L5/0023 , H04L5/006 , H04L5/0082 , H04L5/0085 , H04W88/08
摘要： A method of transmitting a reference signal from a base station to a user equipment in a wireless communication system and apparatus therefor are disclosed. The present invention includes dividing a system band into at least one or more partial bands, configuring a time-axis high density reference signal on a high frequency partial band with reference to a center frequency of the system band, configuring a time-axis low density reference signal on a low frequency partial band with reference to the center frequency, and transmitting the configured reference signals to the user equipment.
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49.发明授权公开(公告)号：US09793971B2
公开(公告)日：2017-10-17
申请号：US14767895
申请日：2014-03-11
申请人： LG ELECTRONICS INC.
发明人： Hyunsoo Ko , Jiwon Kang , Jaehoon Chung
CPC分类号： H04B7/0626 , H04B7/0456 , H04B7/0469 , H04B7/0617 , H04B7/063 , H04B7/0632 , H04B7/0634 , H04B7/0639 , H04B7/0665 , H04L5/0048 , H04W24/10 , H04W72/0413
摘要： The present invention relates to a wireless communication system and, more specifically, to a method and device for reporting channel state information (CSI). The method by which a terminal in a wireless communication system reports CSI, according to one embodiment of the present invention, can comprise the steps for: receiving a reference signal from a base station; and reporting, to the base station, the CSI generated by using the reference signal. When the CSI for a two-dimensional antenna structure defined by a first domain and a second domain includes a channel quality indicator (CQI) for the two-dimensional antenna structure without including a precoding matrix indicator (PMI) for the two-dimensional antenna structure, the CQI can be calculated on the basis of the tilting in the second domain.
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公开(公告)号：US09787448B2
公开(公告)日：2017-10-10
申请号：US14763761
申请日：2013-08-20
申请人： LG ELECTRONICS INC.
发明人： Kitae Kim , Sungho Park , Jaehoon Chung , Sunam Kim , Soocheol Kyeong , Jinmin Kim , Kyunghaeng Lee , Hyunsoo Ko , Jiwon Kang
CPC分类号： H04L5/0048 , H04B7/0456 , H04B7/0469 , H04B7/0617 , H04B7/0628 , H04B7/0634 , H04W72/0453
摘要： A method for transmitting signals to a user equipment at a base station in a wireless communication system is disclosed. The method includes generating a user equipment specific reference signal sequence for the user equipment, determining transmission resources for mapping the user equipment specific reference signal sequence, based on a vertical sector in which the user equipment is located, mapping the user equipment specific reference signal sequence to the determined transmission resources, and transmitting the user equipment specific reference signal sequence to the user equipment using a second-dimensional planar antenna.
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