公开(公告)号：US10764000B2

公开(公告)日：2020-09-01

申请号：US16300489

申请日：2017-05-10

Applicant: LG Electronics Inc.

Inventor： Suckchel Yang ,  Byounghoon Kim ,  Kijun Kim ,  Joonkui Ahn

IPC: H04L1/18 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04

Abstract: The present invention relates to a wireless communication system and, particularly, to a method and an apparatus therefor, the method comprising the steps of: receiving data during a first TTI; transmitting a NACK for the data; and receiving a retransmission signal of the data during a second TTI, wherein a time interval between the first TTI and the second TTI changes according to a TTI length.

公开(公告)号：US10716148B2

公开(公告)日：2020-07-14

申请号：US16065766

申请日：2018-03-07

Applicant: LG Electronics Inc.

Inventor： Eunsun Kim ,  Kijun Kim ,  Byounghoon Kim ,  Sukhyon Yoon ,  Hyunsoo Ko

IPC: H04W74/08 ,  H04W52/36 ,  H04W52/42 ,  H04W52/50

Abstract: In the present invention, when a UE transmits a random access preamble, the UE maintains a power ramping counter used for determination of a transmission power equally to a value of previous transmission without incrementing the power ramping counter if a target synchronization signal block is changed differently from a previous random access preamble transmission.

公开(公告)号：US10700816B2

公开(公告)日：2020-06-30

申请号：US16323512

申请日：2017-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Il-Min Kim ,  Joonkui Ahn ,  Byounghoon Kim

IPC: H04L1/08 ,  H03M13/00 ,  H04L1/00 ,  H04L1/18 ,  H03M13/13

Abstract: Provided are a method and an apparatus for performing a HARQ based on a polar code in a wireless communication system. The apparatus transmits multiple first output bits, which are generated from multiple first input bits, to a receiver. Upon receiving a retransmission request, the apparatus generates multiple second output bits from multiple second input bits. The apparatus selects multiple third output bits from among the multiple second output bits, and transmits the selected multiple third output bits to the receiver. Bits, which are encoded differently from the multiple first output bits among the multiple second output bits, are preferentially selected as the multiple third output bits.

公开(公告)号：US10608708B2

公开(公告)日：2020-03-31

申请号：US16255624

申请日：2019-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Byounghoon Kim ,  Youngwoo Yun ,  Kijun Kim ,  Haewook Park

IPC: H04B7/04 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04L25/03

Abstract: A method for reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system, includes transmitting, to a base station, UE capability information including information for a maximum number of channel state information-reference signal (CSI-RS) resources; receiving, from the base station, CSI-RS configuration information via a higher layer signaling; receiving, from the base station, a channel state information-reference signal (CSI-RS) on at least one CSI-RS port based on the CSI-RS configuration information; measuring a channel based on the CSI-RS; and reporting, to the base station, a result of the channel measurement.

公开(公告)号：US10574425B2

公开(公告)日：2020-02-25

申请号：US16065769

申请日：2017-06-28

Applicant: LG Electronics Inc.

Inventor： Eunsun Kim ,  Kijun Kim ,  Yunjung Yi ,  Joonkui Ahn ,  Byounghoon Kim ,  Hyunsoo Ko

IPC: H04L5/00 ,  H04L27/26

Abstract: In the present invention, a part of a first demodulation reference signal sequence generated on the basis of a basic subcarrier interval (hereinafter, a first subcarrier interval) is used for a second subcarrier interval which is K times the first subcarrier interval. Values selected one for every K from among values constituting the first demodulation reference signal sequence may be used as values constituting a second demodulation reference signal sequence for the second subcarrier interval.

公开(公告)号：US10531488B2

公开(公告)日：2020-01-07

申请号：US15751840

申请日：2016-08-11

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Joonkui Ahn ,  Seonwook Kim ,  Kijun Kim ,  Byounghoon Kim ,  Hanbyul Seo

IPC: H04W28/04 ,  H04W74/08 ,  H04B7/06 ,  H04W16/28 ,  H04W16/14

Abstract: According to one embodiment of the present invention, a method by which a wireless communication device including a plurality of antennas transmits and receives a wireless signal in an unlicensed band in a wireless communication system comprises the steps of: performing a clear channel assessment (CCA) by using the plurality of antennas for a predetermined time interval in the unlicensed band; and transmitting the wireless signal through the unlicensed band when it is determined that the unlicensed band is in an idle state in which the unlicensed band is not occupied by other wireless communication devices, wherein the step of performing the CCA can comprise the steps of: acquiring one reference value by using energy sensing indicators (ESIs) measured through the plurality of antennas; and comparing the reference value with a CCA threshold value so as to determine whether the unlicensed band is in an idle state.

公开(公告)号：US10334591B2

公开(公告)日：2019-06-25

申请号：US15313947

申请日：2015-05-26

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Byounghoon Kim ,  Myoungseob Kim

IPC: H04W48/16 ,  H04W72/04 ,  H04W72/02 ,  H04W4/70 ,  H04W76/14 ,  H04B1/7136 ,  H04L5/00 ,  H04L29/08 ,  H04W8/00 ,  H04W84/12 ,  H04W84/18 ,  H04W92/18 ,  H04L1/18 ,  H04W88/02 ,  H04W84/04 ,  H04L1/00

Abstract: According to an embodiment of the present invention, a discovery signal transmission method, by a device to device (D2D) terminal in a wireless communication system, comprises the steps of: determining time-frequency resources for transmitting a discovery signal in a discovery period; and transmitting a discover signal on the time-frequency resources, wherein the discovery signal, if repeated b number of times in the discovery period, is repeated in consecutive time resources, and the frequency resources in each consecutive time resource are hopped as much as floor(Nf/b), wherein Nf is the number of discovery resources per subframe.

公开(公告)号：US10284408B2

公开(公告)日：2019-05-07

申请号：US15324256

申请日：2015-07-13

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung Yi ,  Hyangsun You ,  Byounghoon Kim ,  Seonwook Kim ,  Joonkui Ahn ,  Kijun Kim

IPC: H04L27/26 ,  H04W16/14 ,  H04W74/08 ,  H04W84/12

Abstract: A method and apparatus for transmitting a Wi-Fi signal in a wireless communication system is provided. A device supporting long-term evolution in unlicensed spectrum (LTE-U) transmits a LTE signal, and transmits the Wi-Fi signal. The Wi-Fi signal may be transmitted by various methods, i.e. by being emulated in the LTE signal, by using a Wi-Fi processor which is embedded in a LTE processor, or by using a Wi-Fi processor which is individual to a LTE processor.

公开(公告)号：US10264559B2

公开(公告)日：2019-04-16

申请号：US15272064

申请日：2016-09-21

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Hanbyul Seo ,  Kijun Kim ,  Byounghoon Kim

IPC: H04W72/04 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04B1/7143

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting an uplink signal. A method for transmitting an uplink signal at a UE in a wireless communication system includes, when a virtual cell ID for a reference signal for demodulation of a physical uplink channel is provided, generating a sequence of the reference signal on the basis of the virtual cell ID, and transmitting the generated reference signal to an eNB. A cyclic shift hopping pattern of the reference signal can be determined on the basis of the virtual cell ID.

公开(公告)号：US10257797B2

公开(公告)日：2019-04-09

申请号：US15502481

申请日：2015-08-07

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun You ,  Seonwook Kim ,  Joonkui Ahn ,  Yunjung Yi ,  Byounghoon Kim ,  Suckchel Yang ,  Hanbyul Seo

IPC: H04W56/00 ,  H04J11/00 ,  H04W8/00 ,  H04L5/00 ,  H04W48/16

Abstract: Provided are a method and a device whereby a synchronization signal is transmitted and received. One embodiment of the present invention involves using one of a plurality of cells (first cell hereinbelow) in order to transmit synchronization signal setting information of a cell (second cell hereinbelow) set in an unlicensed band of the plurality of cells. The synchronization signal is transmitted on the second cell, based on the synchronization signal setting information. The synchronization signal is used in order to acquire time and frequency synchronization with the second cell.