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181.发明授权公开(公告)号：US10333609B2
公开(公告)日：2019-06-25
申请号：US15304014
申请日：2015-02-13
Applicant: LG ELECTRONICS INC.
Inventor： Kilbom Lee , Jiwon Kang , Kitae Kim , Heejin Kim
IPC: H04B7/08 , H04L5/00 , H04J11/00 , H04B7/0417 , H04B7/0456
Abstract: A method of generating a transmission signal and a MIMO transmitter are disclosed. The method includes the steps of selecting a reference RE from an RE group including a plurality of resource elements (REs), generating a common precoder and a preprocessing filter to be shared by the plurality of the REs belonging to the RE group based on channel information of the reference RE, generating first signals corresponding to a precoding signal for each of the plurality of the REs in a manner of applying the common precoder to transmission data of each of the plurality of the REs and generating second signals in a manner of compensating first signals of REs except the reference RE among the plurality of the REs using channel information of each of plurality of the REs and the preprocessing filter.
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182.发明授权公开(公告)号：US10205571B2
公开(公告)日：2019-02-12
申请号：US15453771
申请日：2017-03-08
Applicant: LG ELECTRONICS INC.
Inventor： Minki Ahn , Jaehoon Chung , Kilbom Lee , Kyuseok Kim
IPC: H04B7/06 , H04L5/00 , H04B7/0456
Abstract: Provided are a method and an apparatus for performing communication based on hybrid beamforming in a wireless communication system. Specifically, a user equipment (UE) transmits a dedicated scheduling request to a base station (BS). The dedicated scheduling request indicates a first scheduling request that is a request to transmit beam state information, multiplexed on an uplink data channel, or a second scheduling request that is a request to allocate a resource for a reference signal for beam refinement information. When the dedicated scheduling request indicates the first scheduling request, the UE receives an uplink grant including a response to the first scheduling request from the BS. The UE feeds the BSI back multiplexed on the uplink data channel to the BS.
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公开(公告)号：US10193673B2
公开(公告)日：2019-01-29
申请号：US15326026
申请日：2015-08-19
Applicant: LG ELECTRONICS INC.
Inventor： Kilbom Lee , Jiwon Kang , Jinsoo Choi , Wookbong Lee , Dongguk Lim , Hangyu Cho , Eunsung Park
Abstract: One embodiment of the present invention provides a transmitter and a pilot sequence transmission method comprising: generating an asymmetric sequence set comprising a plurality of pilot sequences which have been circular shifted by irregular intervals on a time axis; mapping, to the respective pilot sequences included in the asymmetric sequence set, additional information that is shown by using shared bits and non-shared bits; and selecting any one pilot sequence selected from the asymmetric sequence set and transmitting same to a receiver.
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公开(公告)号：US20190028253A1
公开(公告)日：2019-01-24
申请号：US16079388
申请日：2017-03-23
Applicant: LG ELECTRONICS INC.
Inventor： Joonkui Ahn , Kilbom Lee , Kijun Kim , Hyunsoo Ko
Abstract: A method and a device for transmitting a discovery reference signal (DRS) are provided. The device selects, as a DRS transmission mode, either a switching mode for transmitting a narrow beam or a repeating mode for transmitting a wide beam. The narrow beam covers greater coverage than that of the wide beam. The device transmits the DRS in a plurality of time resources according to the selected DRS transmission mode.
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185.发明授权公开(公告)号：US10181889B1
公开(公告)日：2019-01-15
申请号：US15745283
申请日：2015-08-10
Inventor： Kilbom Lee , Changho Suh , Seiyun Shin , Jaewoong Cho , Jiwon Kang
IPC: H04B7/26 , H04B7/06 , H04B17/24 , H04B17/364 , H04B17/345
Abstract: Disclosed is a communication method using outdated channel state information in a network environment having a G-cell and 2-user terminal, by allowing a terminal and base stations to transmit and receive data symbols for G time slots, and to transmit and receive a reconfiguration signal for an additional one time slot.
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Patent Agency Ranking
公开(公告)号：US10158466B2
公开(公告)日：2018-12-18
申请号：US15327945
申请日：2015-02-12
Applicant: LG ELECTRONICS INC.
Inventor： Jiwon Kang , Sunam Kim , Kitae Kim , Kilbom Lee , Heejin Kim
IPC: H04L5/00 , H04B7/06 , H04B7/0456 , H04W72/04 , H04L27/26 , H04B7/0452
Abstract: Disclosed herein is a method for transmitting a reference signal from a base station to a user equipment (UE) in a wireless communication system. The method includes mapping the reference signal defined by a plurality of antenna ports to resource elements, applying precoding to the reference signal using different precoders according to the plurality of antenna ports, and transmitting the precoded reference signal to the UE.
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公开(公告)号：US10148419B2
公开(公告)日：2018-12-04
申请号：US15571765
申请日：2016-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Kilbom Lee , Jiwon Kang , Kitae Kim , Kungmin Park , Heejin Kim
Abstract: Disclosed is a method for receiving a synchronization signal, comprising: respectively receiving, from a plurality of base stations, a plurality of synchronization signals generated by using a phase pattern vector set, which is nested orthogonal and hierarchically configured; measuring a sequence index and an index of a phase pattern vector for the plurality of synchronization signals; selecting, among the plurality of base stations, a base station having the highest correlation value calculated as a measurement result; and establishing a connection with the selected base station, wherein the phase pattern vector set has different phase pattern vectors for changing a phase of a synchronization signal sequence up to a predetermined repetition number.
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188.发明授权公开(公告)号：US10136444B2
公开(公告)日：2018-11-20
申请号：US15501819
申请日：2014-08-14
Inventor： Kilbom Lee , Changho Suh , Seiyun Shin , Jaewoong Cho , Jiwon Kang , Kitae Kim
Abstract: Disclosed is a communication method of a terminal utilizing outdated channel information in a two-cell, three-user network environment, the method comprising: transmitting nine different first linear combinations to a first base station in each time slot during a first time interval; receiving a first feedback signal from a second base station which has received the first linear combination as an interference signal; transmitting four different second linear combinations to the first base station during a first sub-time interval of a third time interval; receiving a second feedback signal from the second base station which has received the second linear combinations as an interference signal; and transmitting reconfiguration signals consisting of eight data symbols to the first base station during a third sub-time interval of the third time interval. Further, a communication method of a base station corresponding to such a terminal is also disclosed.
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公开(公告)号：US10135662B2
公开(公告)日：2018-11-20
申请号：US15524873
申请日：2015-11-30
Applicant: LG ELECTRONICS INC.
Inventor： Kilbom Lee , Hangyu Cho , Wookbong Lee , Jinsoo Choi , Jiwon Kang
Abstract: Disclosed is a sequence generation method comprising: generating a basic sequence structure including C48 having 48 tones, X6 having six tones, and X5 having five tones; selecting any one of a plurality of phase rotation factors predetermined for a bandwidth; and generating a sequence to be inputted into a preamble to be transmitted to a terminal, by using the phase rotation factor, applied in basic sequence structural units, and the basic sequence structure.
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190.发明申请公开(公告)号：US20180254863A1
公开(公告)日：2018-09-06
申请号：US15448166
申请日：2017-03-02
Applicant: LG Electronics Inc.
Inventor： Kukheon Choi , Kilbom Lee , Kyuseok Kim , Minki Ahn
CPC classification number: H04W72/0413 , H04L5/0023 , H04L5/005 , H04L5/0073 , H04W72/042 , H04W72/046
Abstract: A method for reducing inter-cell interference caused by transmission (Tx) beam tracking by a user equipment (UE) in a wireless communication system comprises transmitting, to a serving base station (BS), an indicator indicating request for reporting of information about a Tx beam identifier (ID) identifying a Tx beam causing interference to a neighbor cell by transmitting sounding reference symbol (SRS) and information about a cell ID of the neighbor cell; receiving, from the serving BS, control information indicating a position of a resource for transmission of the information about the Tx beam ID and the information about the cell ID of the neighbor cell; and transmitting, to the serving BS, the information about the Tx beam ID and the information about the cell ID of the neighbor cell through the position of resource indicated by the control information.
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