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公开(公告)号：US10333581B2
公开(公告)日：2019-06-25
申请号：US15555933
申请日：2016-07-07
Applicant: LG ELECTRONICS INC.
Inventor： Dongkyu Kim , Hyunsoo Ko , Kwangseok Noh , Sangrim Lee , Hojae Lee
Abstract: A method for a FDR scheme-using communication device transmitting reference signals for estimating a channel of a non-linear self-interference signal comprises the step of transmitting, on a specific symbol of a corresponding subframe, reference signals for estimating the channel of the non-linear self-interference signal, wherein a sequence mapped to the reference signals is a sequence generated in a frequency domain by being discrete Fourier transform (DFT)-converted, and the generated sequence may be mapped, on the frequency domain, to a RE for the reference signals.
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公开(公告)号：US10326483B2
公开(公告)日：2019-06-18
申请号：US15545515
申请日：2015-10-21
Applicant: LG ELECTRONICS INC.
Inventor： Dongkyu Kim , Hyunsoo Ko , Jaehoon Chung , Kukheon Choi , Kwangseok Noh , Sangrim Lee
IPC: H04B1/44 , H04B1/12 , H04B15/02 , H04B1/525 , H04B7/08 , H04L5/14 , H04B17/14 , H04B1/56 , H04L5/00 , H04B17/345
Abstract: A method for removing a self-interference signal by a device supporting an FDR mode can further comprise the steps of: transmitting a signal to a counterpart node in a predetermined time interval; generating, in an RF stage of the device, a residual self-interference signal after removal of an analog self-interference signal with respect to the signal and then storing same; and receiving from the counterpart node a NACK signal with respect to the transmission of the signal; retransmitting the signal to the counterpart node; and, if decoding of the signal which has been received in the predetermined time interval is successful, using only a part of the stored residual self-interference signal when removing a digital self-interference signal on the basis of the retransmission.
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公开(公告)号：US10230506B2
公开(公告)日：2019-03-12
申请号：US15517511
申请日：2014-10-07
Applicant: LG ELECTRONICS INC.
Inventor： Kungmin Park , Heejeong Cho , Hyunsoo Ko , Hyeyoung Choi , Ilmu Byun
Abstract: A signal transmission method for reducing inter-cell interference according to the present invention may comprise the steps of: determining a rank on the basis of feedback information received from a terminal; generating a transmission sequence according to the rank; generating a repetitive transmission sequence by repeating the transmission sequence, and shifting a position of a symbol within the repetitive transmission sequence; and transmitting the transmission sequence and the repetitive transmission sequence. As a result, the present invention can implement an inter-cell interference randomization even in a closed-loop MINO.
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194.发明授权公开(公告)号：US10193647B2
公开(公告)日：2019-01-29
申请号：US15519517
申请日：2014-10-27
Applicant: LG ELECTRONICS INC.
Inventor： Kungmin Park , Heejeong Cho , Hyunsoo Ko , Hyeyoung Choi , Ilmu Byun
Abstract: The present invention relates to generating an interference pattern for controlling inter-cell interference, a method for signaling therefor, and an apparatus utilizing the method. The method for signaling an interference pattern according to the present invention may comprise the steps of: determining the length and cyclic shift offset for a first interference pattern to be allocated to a set reference resource from among interference pattern sets; generating a cell-specific sequence to which the cyclic shift offset of the first interference pattern has been applied; and allocating the first interference pattern and cell-specific sequence to a resource and transmitting same.
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公开(公告)号：US10149260B2
公开(公告)日：2018-12-04
申请号：US15402933
申请日：2017-01-10
Applicant: LG ELECTRONICS INC.
Inventor： Hyunsoo Ko , Seokmin Shin , Bonghoe Kim , Yunjung Yi
Abstract: A method and apparatus for transmitting and receiving narrowband (NB) synchronization signals. A base station transmits an NB secondary synchronization signal (SSS) indicating N NB cell identities assigned for NB Internet of Things (IoT) operation, a specific sequence generated by multiplying a base sequence with a cover sequence in element units is used for the NB SSS, wherein the base sequence is generated through a second Zadoff-Chu sequence having a length corresponding to a largest prime number less than a length L in a frequency domain, and the specific sequence is divisionally mapped to and transmitted in a plurality of orthogonal frequency division multiplexing (OFDM) symbols in elements each having a length M.
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Patent Agency Ranking
196.发明授权公开(公告)号：US10098107B2
公开(公告)日：2018-10-09
申请号：US15377969
申请日：2016-12-13
Applicant: LG ELECTRONICS INC.
Inventor： Hyunsoo Ko , Kitae Kim , Jaehoon Chung
Abstract: An embodiment of the present invention relates to a method in which a terminal receives control information in a wireless communication system, said method comprising: a step of performing blind decoding in at least one portion of a resource region except the time unit indicated by a physical control format indicator channel (PCFICH) on a subframe, said at least one portion of the resource region is determined by whether a synchronizing signal or system information is transmitted or not.
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公开(公告)号：US20180254926A1
公开(公告)日：2018-09-06
申请号：US15755413
申请日：2016-05-24
Applicant: LG ELECTRONICS INC.
Inventor： Dongkyu Kim , Hyunsoo Ko , Kwangseok Noh , Sangrim Lee , Hojae Lee
CPC classification number: H04L25/0328 , H04B1/525 , H04L5/1461 , H04L25/0224 , H04L25/03821 , H04L27/2691 , H04W72/082
Abstract: A method for cancelling self-interference by a base station that uses a full duplex radio (FDR) scheme may comprise the steps of: transmitting, to a terminal, information associated with reference signal (RS) power boosting, which has been changed for estimation of a self-interference channel; transmitting an RS on the basis of the changed RS power boosting; estimating the self-interference channel according to the RS; and cancelling the self-interference on the basis of the estimation of the self-interference channel.
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198.发明授权公开(公告)号：US10056926B2
公开(公告)日：2018-08-21
申请号：US15528151
申请日：2014-11-20
Applicant: LG ELECTRONICS INC.
Inventor： Ilmu Byun , Heejeong Cho , Hyunsoo Ko , Hyeyoung Choi , Kungmin Park
IPC: H04B1/00 , H04B15/00 , H04B1/10 , H04B17/345 , H04B7/0413
CPC classification number: H04B1/10 , H04B7/024 , H04B7/0413 , H04B7/0478 , H04B17/345 , H04J11/0056 , H04W52/42
Abstract: Provided are a method and a device for transmitting and receiving inter-cell information for cancelling inter-cell interference in a wireless communication system. The method for transmitting and receiving inter-cell information may comprise the steps of: taking a PMI set which is a set of PMIs of a signal generating interference to an area partitioned in a predetermined direction and transmitting same to the base station of an adjacent cell transmitting the signal generating interference; and receiving, from the base station of the adjacent cell, PMI information on at least one of the PMIs included in the PMI set.
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公开(公告)号：US10050753B2
公开(公告)日：2018-08-14
申请号：US15505811
申请日：2014-09-17
Applicant: LG ELECTRONICS, INC.
Inventor： Kungmin Park , Heejeong Cho , Hyunsoo Ko , Hyeyoung Choi , Ilmu Byun
IPC: H04W72/08 , H04L5/00 , H04W72/12 , H04B17/309 , H04B17/345 , H04J1/16
Abstract: Disclosed is a method for mitigating inter-cell interference. A method for mitigating inter-cell interference can comprise the steps of: a terminal, which is being serviced by means of a fixed cell, receiving from the fixed cell a first signal that is generated on the basis of a first STBC; the terminal, in time resources overlapping the reception time of the first signal, receiving from a moving cell a second signal that is generated on the basis of a second STBC; and the terminal determining a transmission symbol component on the basis of the first signal and an interference component on the basis of the first signal and the second signal.
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公开(公告)号：US10009075B2
公开(公告)日：2018-06-26
申请号：US14552918
申请日：2014-11-25
Applicant: LG Electronics Inc.
Inventor： Hyunsoo Ko , Heejeong Cho , Hyeyoung Choi , Ilmu Byun , Kungmin Park
IPC: H04B7/04 , H04W24/08 , H04B7/0417 , H04B7/0456 , H04L5/00
CPC classification number: H04B7/0456 , H04B7/0417 , H04B7/046 , H04B7/0486 , H04L5/0032 , H04L5/0048
Abstract: Here, operation for 3D beam forming is disclosed. UE, receiving reference signals from one or more base stations (eNBs), may report feedback information comprising precoding matrix information to the one or more eNBs. The precoding matrix information indicates a first type precoding matrix for a horizontal direction and a second type precoding matrix for a vertical direction. eNBs may transmit signals, which are precoded based on a third type precoding matrix for beam forming both on the horizontal direction and the vertical direction.
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