公开(公告)号：US10735239B2

公开(公告)日：2020-08-04

申请号：US15505908

申请日：2015-09-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Hakseong Kim ,  Suhwan Lim ,  Inkwon Seo

IPC: H04L27/26 ,  H04J11/00 ,  H04W52/54 ,  H04W76/14 ,  H04W4/70

Abstract: One embodiment of the present invention is a method by which a D2D terminal transmits a synchronization signal in a wireless communication system, the synchronization signal transmission method comprising: generating a primary sidelink synchronization signal (PSSS); and transmitting the PSSS, wherein the transmission power of the PSSS is the same as the transmission power of a channel in which system and synchronization-related information is transmitted.

公开(公告)号：US10716093B2

公开(公告)日：2020-07-14

申请号：US15764858

申请日：2016-09-30

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo ,  Hyukjin Chae ,  Seungmin Lee

IPC: H04W72/04 ,  H04L5/00 ,  H04W88/04 ,  H04W76/23 ,  H04W92/18

Abstract: The present application discloses a method for allocating resources for direct communication between terminals in a wireless communication system. Specifically, the method for allocating resources comprises: a step of configuring a first periodic resource so as to transmit multiple messages via direct communication between the terminals; and a step of transmitting the multiple messages by using the first periodic resource if a coding rate corresponding to the first periodic resource is below a maximum coding rate configured by an upper layer, wherein, if the coding rate is equal to or above the maximum coding rate, the first periodic resource is released and a second periodic resource is configured.

公开(公告)号：US10701648B2

公开(公告)日：2020-06-30

申请号：US16422817

申请日：2019-05-24

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo ,  Inkwon Seo ,  Hyukjin Chae

IPC: H04W56/00 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W92/18

Abstract: The present invention relates to a wireless communication system. Disclosed is a method for transmitting a synchronization signal for direction communication between terminals. A method for transmitting a synchronization signal according to one embodiment of the present invention comprises the steps of: mapping a synchronization signal for direction communication between terminals to a sub-frame comprising a first slot and a second slot; and transmitting, to a counterpart terminal, the sub-frame to which the synchronization signal is mapped, wherein the synchronization signal is mapped to four orthogonal frequency division multiple access (OFDM) symbols of the sub-frame, and at least two OFDM symbols of the four OFDM symbols may be adjacent to each other.

公开(公告)号：US10701581B2

公开(公告)日：2020-06-30

申请号：US16069454

申请日：2016-12-26

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04W24/10 ,  H04W24/02 ,  H04W28/08 ,  H04B17/318 ,  H04L12/26 ,  H04W72/08 ,  H04W72/12

Abstract: A method for measuring and reporting a D2D resource by a terminal that supports D2D communication according to an embodiment of the present invention comprises the steps of: measuring a resource usage rate of a first link that is being used by the terminal for D2D communication; transmitting a measurement report including the measured resource usage rate to a base station when the measured resource usage rate exceeds a first threshold value or less than a second threshold value; and receiving resource reallocation information for offloading the D2D communication, from the base station, wherein the resource reallocation information includes probability values indicating probabilities that the first link and the second link, which is configured in a resource different from that of the first link, will be used for the D2D communication, respectively. The terminal may offload the D2D communication performed in the first link onto the second link when the second link is selected through a link selection performed on the basis of the probability values.

公开(公告)号：US10687312B2

公开(公告)日：2020-06-16

申请号：US15522893

申请日：2015-11-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W92/18 ,  H04L29/08

Abstract: One embodiment of the present invention provides a method by which a device to device (D2D) terminal transmits a signal in a wireless communication system, the D2D signal transmission method comprising the steps of: allowing a resource, which is to be used for D2D transmission, to be configured by a base station; and transmitting a D2D control signal by selecting a time frequency resource from the resource, wherein, when there is no data to be transmitted by the terminal, transmission of the D2D control signal is not permitted.

公开(公告)号：US10687294B2

公开(公告)日：2020-06-16

申请号：US15125510

申请日：2015-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo

IPC: H04W56/00 ,  H04W48/20 ,  H04L5/14 ,  H04W76/14 ,  H04W92/18

Abstract: One embodiment of the present invention relates to a method for a user equipment to transmit a device-to-device (D2D) signal in a time division duplex (TDD) wireless communication system, the method comprising the steps of: generating a primary synchronization signal and a secondary synchronization signal; and transmitting a subframe in which the primary synchronization signal and the secondary synchronization signal are mapped, wherein, if the cell selection reception level value and the cell selection quality value of the user equipment are all greater than 0, then the user equipment applies a fixed timing advance offset value (e.g. 624 Ts) that is greater than 0 when transmitting the subframe.

公开(公告)号：US10674487B2

公开(公告)日：2020-06-02

申请号：US15122253

申请日：2015-03-12

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Inkwon Seo ,  Suckchel Yang ,  Hyukjin Chae

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

Abstract: The present invention relates to a method and an apparatus for transmitting an uplink control channel of a terminal in a wireless communication system that supports a use change of radio resources. Specifically, the method comprises the steps of: receiving offset information for a second physical uplink control channel (PUCCH) resource region associated with a second type subframe and a third type subframe, the second PUCCH resource region being set on the basis of a first PUCCH resource region for a first type subframe; and transmitting, to a base station, an acknowledgement/negative-ACK (ACK/NACK) for at least one downlink subframe, using the second PUCCH resource region designated according to the offset information.

公开(公告)号：US20200162213A1

公开(公告)日：2020-05-21

申请号：US16492250

申请日：2018-03-21

Applicant: LG Electronics Inc.

Inventor： Youngtae Kim ,  Hanbyul Seo ,  Hyukjin Chae ,  Heejin Kim ,  Seungmin Lee

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/06 ,  H04L1/18 ,  H04L1/00 ,  H04W4/44

Abstract: The present invention relates to a method and apparatus for a transmission device to transmit a reference signal in a wireless communication system. Specifically, the method includes: a step for receiving the settings of a resource pool composed of uplink resources; and a step for mapping reference signals and data onto a specific uplink resource on the basis of the resource pool settings and N (where N is a natural number) antennas for the transmission device, and is characterized in that the reference signals are mapped to at least one resource element at a specific location on the specific uplink resource, and the data is mapped on the specific uplink resource excluding the at least one specific location to be mutually orthogonal on the basis of one resource axis among the time-frequency resources and so that the data is continuous depending on the number of antennas. The transmitting device is capable of communicating with at least one of another receiving device, a receiving device related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US10623923B2

公开(公告)日：2020-04-14

申请号：US16283167

申请日：2019-02-22

Applicant: LG Electronics Inc.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Hyukjin Chae ,  Youngtae Kim

IPC: H04W74/08 ,  H04W72/12 ,  H04W72/04 ,  H04W4/40 ,  H04W28/26 ,  H04W74/00 ,  H04W72/14 ,  H04W76/28 ,  H04W76/27 ,  H04L1/00 ,  H04L1/16 ,  H04L5/14 ,  H04W8/00 ,  H04W56/00

Abstract: The present invention provides a vehicle-to-X (V2X) operation method performed by a V2X terminal in a wireless communication system, the method comprising: reserving a finite number of resources used for performing a V2X communication; and performing the V2X communication on the finite number of reserved resources.

公开(公告)号：US10594455B2

公开(公告)日：2020-03-17

申请号：US15781419

申请日：2016-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Hanbyul Seo ,  Hyukjin Chae ,  Kijun Kim ,  Inkwon Seo

IPC: H04L5/00 ,  H04L27/26 ,  H04W4/44 ,  H04W4/46 ,  H04W4/70 ,  H04W72/04 ,  H04W80/02

Abstract: A demodulation reference signal (DMRS) transmission method in a vehicle-to-something (V2X) communication is disclosed. The DMRS in V2X communication is mapped onto four symbols in at least one subframe from among a plurality of subframes. For correction of the frequency offset, the four symbols may comprise a symbol pair located at least two symbol intervals.