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公开(公告)号：US20180192466A1
公开(公告)日：2018-07-05
申请号：US15738765
申请日：2016-01-22
Applicant: LG ELECTRONICS INC.
Inventor： Kungmin PARK , Jiwon KANG , Kitae KIM , Kilbom LEE , Heejin KIM
CPC classification number: H04W76/25 , H04L41/0866 , H04L41/0893 , H04W4/06 , H04W4/40 , H04W8/26 , H04W48/14 , H04W48/16 , H04W72/0413 , H04W74/0833 , H04W76/15 , H04W84/005 , H04W88/06 , H04W88/08
Abstract: A method of accessing a network by using a virtual UE scheme and a UE thereto are disclosed. The method includes performing a first random access procedure for a first DU group including one or more DUs with respect to a base station, performing a second random access procedure for a second DU group with respect to the base station, while maintaining a connection of the first DU group with the base station, and communicating with the base station via the first DU group and the second DU group.
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102.发明申请公开(公告)号：US20180191417A1
公开(公告)日：2018-07-05
申请号：US15739867
申请日：2016-06-27
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Jiwon KANG , Kilbom LEE , Heejin KIM , Kungmin PARK
IPC: H04B7/06 , H04B7/0413 , H04W72/02
CPC classification number: H04B7/0617 , H04B7/04 , H04B7/0404 , H04B7/0413 , H04B7/0695 , H04W72/02
Abstract: A method and apparatus for transmitting an uplink beam scanning signal in a wireless communication system is provided. A terminal first performs downlink beam scanning, and then transmits the uplink beam scanning signal to a base station through a time-frequency resource corresponding to a beam selected according to the downlink beam scanning. The terminal may transmit information on the downlink beam scanning to the base station. The base station may divide a plurality of terminals into a plurality of groups on the basis of information on downlink beam scanning, received from the plurality of terminals, and perform uplink beam scanning for only uplink beams which are selected corresponding to the plurality of groups among all the uplink beams.
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公开(公告)号：US20180176069A1
公开(公告)日：2018-06-21
申请号：US15580262
申请日：2016-01-20
Applicant: LG ELECTRONICS INC.
Inventor： Kilbom LEE , Jiwon KANG , Kitae KIM , Kungmin PARK , Heejin KIM
CPC classification number: H04L27/38 , H04L27/2655 , H04L27/2657 , H04L27/2672 , H04L27/2676 , H04L27/34 , H04W84/12
Abstract: Disclosed is a method for estimating a CFO, the method comprising: measuring a size ratio of a signal pair received in two consecutive OFDM symbols of a predetermined subcarrier; determining the received signal pair as a signal pair to be used for estimating a residual CFO when the size ratio is within a first threshold range; and estimating the residual CFO, using only the received signal pair which has been determined to be used for estimating the residual CFO.
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公开(公告)号：US20180145808A1
公开(公告)日：2018-05-24
申请号：US15571601
申请日：2016-05-17
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Jiwon KANG , Kilbom LEE , Heejin KIM , Kungmin PARK
CPC classification number: H04L5/0048 , H04B7/04 , H04B7/0413 , H04B7/0617 , H04B7/0695 , H04L5/0007 , H04L25/0224 , H04W16/02 , H04W16/28 , H04W56/001 , H04W72/085 , H04W88/02 , H04W88/08
Abstract: Provided are a method and an apparatus for transmitting an uplink reference signal in a wireless communication system. A terminal receives from a base station, information on the maximum repetition number of the uplink reference signal, determines the repetition number of the uplink reference signal using the received information on the maximum repetition number of the uplink reference signal and signal quality obtained through downlink synchronization, and repeatedly transmits, to the base station, the uplink reference signal according to the determined repetition number of the uplink reference signal. The base station determines the uplink coverage of the terminal on the basis of the repeatedly received uplink reference signal.
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105.发明申请公开(公告)号：US20180097807A1
公开(公告)日：2018-04-05
申请号：US15672191
申请日：2017-08-08
Applicant: LG ELECTRONICS INC.
Inventor： Genebeck HAHN , Jiwon KANG , Heejin KIM , Ilmu BYUN , Heejeong CHO
IPC: H04L29/06
CPC classification number: H04L63/0876 , H04L61/2053 , H04L61/6054 , H04L63/061 , H04L63/123 , H04W8/04 , H04W8/26 , H04W12/02 , H04W12/06
Abstract: In the present invention, a method and an apparatus for performing initial access procedure based on authentication in a wireless communication system are disclosed. The method may comprise generating a pseudo permanent identifier based on a permanent identifier of the user equipment, transmitting, to a first authentication entity, a first message including the pseudo permanent identifier and an index of a specification authentication key, receiving, from the first authentication entity, a second message including a first MAC for at least one a first new authentication key generated by a second authentication entity or a first increased counter at the second authentication entity for a specific authentication counter, and transmitting, to the first authentication entity, a third message including a second MAC for at least one a second new authentication key generated by the user equipment or a second increased counter at the user equipment for the specific authentication counter.
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Patent Agency Ranking
106.发明申请公开(公告)号：US20180077730A1
公开(公告)日：2018-03-15
申请号：US15553972
申请日：2016-03-07
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Jiwon KANG , Kilbom LEE , Kungmin PARK , Heejin KIM
CPC classification number: H04W74/0833 , H04J13/0055 , H04L5/0053 , H04W56/0005
Abstract: Provided are a method and an apparatus for detecting a random access channel (RACH) preamble on the basis of a plurality of zero-correlation zones (ZCZ) in a wireless communication system. A user equipment (UE) transmits a RACH preamble, generated using a combination of a plurality of sequences corresponding to a plurality of zero-correlation zones, to an evolved NodeB (eNB). The evolved NodeB (eNB) detects a plurality of peaks from the RACH preamble and transmits a random access response to the UE.
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107.发明申请公开(公告)号：US20170288835A1
公开(公告)日：2017-10-05
申请号：US15513710
申请日：2015-09-24
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Hyunsoo KO , Jiwon KANG , Kilbom LEE , Heejin KIM
CPC classification number: H04L5/0048 , H04L5/0016 , H04L5/0023 , H04L5/0051 , H04L27/2613 , H04W72/042
Abstract: A method for transmitting, by a base station, a demodulation reference signal (DMRS) in a wireless communication system according to one embodiment of the present invention comprises the steps of generating a DMRS sequence; mapping the DMRS sequence to resource elements of respective layers; and transmitting, through respective antenna ports corresponding to the respective layers, the DMRS sequence mapped to the resource elements, wherein if the number of layers exceeds a predetermined number, the DMRS sequence is mapped to the resource elements according to a pattern on at least two bundled consecutive resource blocks.
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108.发明申请公开(公告)号：US20170273063A1
公开(公告)日：2017-09-21
申请号：US15504896
申请日：2015-08-21
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Jiwon KANG , Kilbom LEE , Heejin KIM
CPC classification number: H04W72/046 , H04B7/0617 , H04B7/0695 , H04L1/1812 , H04L5/0005 , H04L5/005 , H04L5/0053 , H04W72/005 , H04W72/0446 , H04W88/02 , H04W88/08
Abstract: The present invention relates to a method and a device for transmitting a training symbol for hybrid beamforming. A method for transmitting a training symbol for estimating an analog beam in a wireless access system which supports hybrid beamforming according to one embodiment of the present invention comprises: a step of repeatedly transmitting a training symbol a number of times equivalent to the number of analog candidate beams; and a step of repeatedly transmitting a broadcasting channel a number of times equivalent to the number of analog candidate beams. A training symbol section, where the training symbol is transmitted, can be allocated to the same subframe as a subframe to which the repeatedly transmitted broadcasting channel is allocated.
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109.发明申请公开(公告)号：US20170214507A1
公开(公告)日：2017-07-27
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 , H04W72/04 , H04B7/0456
CPC classification number: H04L5/0048 , H04B7/0452 , H04B7/0456 , H04B7/0478 , H04B7/065 , H04L5/005 , H04L27/2613 , H04W72/0446
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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110.发明申请公开(公告)号：US20170134079A1
公开(公告)日：2017-05-11
申请号：US15316820
申请日：2014-06-25
Applicant: LG Electronics Inc.
Inventor： Kitae KIM , Heejin KIM , Kilbom LEE , Jiwon KANG
IPC: H04B7/0456 , H04B7/04
CPC classification number: H04B7/0456 , H04B7/0421 , H04B7/0604 , H04B7/0617 , H04B7/0639
Abstract: Disclosed in the present invention is a method for a transmitting end transmitting a signal in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to a receiving end, a first reference signal for providing a reference beam which is equal in all directions, and a second reference signal for providing a boundary beam which heads toward a pre-set direction; receiving, from the receiving end, feedback information on the difference value between the reference beam gain and the boundary beam gain; estimating the mobility information of the receiving end on the basis of the amount of change in the difference value; and, by using the mobility information, performing beamforming for transmitting a signal to the receiving end.
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