Lg Electronics Inc.

Woosuk Ko

Sungryong Hong

Jongseob Baek

Kyoungsoo Moon

Minsung Kwak

Jaehyung Kim

Jangwon Lee

Sangchul Moon

Jaeho Hwang

Sejin Oh

Seungryul Yang

Jongwoong Shin

Woosuk Kwon

Seungmin Lee

Chulkyu Mun

Jinwoo Kim

Seoyoung Back

Hanbyul Seo

Byounggill Kim

Jinyong Choi

Woochan Kim

Hotaek Hong

Jinwon Lee

Seungjoo An

Kookyeon Kwak

Daesung Hwang

Byeongkook Jeong

Joonhui Lee

Yonghak Suh

Hyunsoo Ko

Sukhyon Yoon

Hyunsu Cha

Donghyun Kang

Youngjin Hong

Kijun Kim

Sungryoung Hong

Timothy G Laud

Hochul Jung

Seoyoung Baek

Suckchel Yang

Youngdae Lee

Giwon Park

Jongwoo Hong

Kaibin Huang

Jungwook Park

Jeonghwan Park

Sanchul Moon

Hyukjin Chae

Laeyoung Kim

Ho Taek Hong

Jongyeul Suh

Soojin Hwang

Soyoung Kim

Somi Park

Robin Thomas

Chulkyu Moon

Zezhong Zhang

Qiao Lan

Hoteak Hong

Jonbseob Baek

Seoungjoo An

According to one embodiment of the present disclosure, provided is a method, by which a first device performs sidelink communication. The method may comprise the steps of: receiving first synchronization information from a first synchronization source associated with a GNSS; receiving second synchronization information from a second synchronization source associated with a base station; determining, on the basis of a difference value between a first time point related to the first synchronization information and a second time point related to the second synchronization information being greater than a preset threshold, a first resource for transmission of a PSCCH on the basis of the second time point; transmitting, on the basis of the first resource, a first SCI through the PSCCH to a second device; and transmitting, on the basis of a second resource determined on the basis of the first SCI, a second SCI and data through a PSSCH related to the PSCCH, the second SCI being different from the first SCI.

Method and apparatus for determining sidelink resources in NR V2X

A method of operating a first devicein a wireless communication system is proposed. The method may comprise: obtaining information related to SL BWP; obtaining information regarding a measurement gap period, in which a transmission of SL data is not allowed, related to positioning of the first device; selecting the SL BWP or the measurement gap period, for use in a transmission of a PRS; transmitting the PRS based on the selected SL BWP or measurement gap period; and performing the positioning based on the PRS.

Method and device for measurement gap formation for SL positioning

A method of operating a first devicein a wireless communication system is proposed. The method may comprise: determining at least one first SL PRS candidate resource for transmitting a first PRS; receiving, from a second device, first control information related to SL PRS through a first control channel related to SL PRS; obtaining information related to at least one first SL PRS resource to be used by the second device, based on the first control information; excluding at least one second SL PRS resource from the at least one first SL PRS candidate resource, based on an RSRP value related to the first control information being greater than or equal to a first threshold and a number of the at least one second SL PRS resource, in which the at least one first SL PRS candidate resource and the at least one first SL PRS resource overlap, being greater than or equal to a second threshold.

Method and device for sensing for SL PRS resource selection

Proposed is an operation method of a first device () in a wireless communication system. The method may comprise the steps of: receiving TDD-UL-DL configuration information including information related to a first slot pattern and information related to a second slot pattern from a base station (); determining a value related to granularity on the basis of i) a period of the first slot pattern, ii) a period of the second slot pattern, and iii) first subcarrier spacing related to SL communication; and transmitting a physical sidelink broadcast channel (PSBCH) including information related to a first UL resource and information related to a second UL resource to a second device ().

Method and device for transmitting information related to slot pattern in NR V2X

Proposed is an operation method for a first device () in a wireless communication system. The method may comprise the steps of: receiving a first positioning reference signal (PRS) from a second device (), on the basis of a first antenna (-), a second antenna (-), and a third antenna (-); obtaining a first time difference, on the basis of a first reception time at which the first PRS is received on the basis of the first antenna (-) and a second reception time at which the first PRS is received on the basis of the second antenna (-); obtaining a second time difference, on the basis of a third reception time at which the first RPS is received on the basis of the third antenna (-) and the first reception time; and obtaining the location of the first device (), on the basis of the first time difference and the second time difference.

Method and apparatus for performing DAS-based positioning

A method by which a first apparatus performs wireless communication is proposed. The method may comprise the steps of: selecting a first synchronization source, on the basis of a sidelink synchronization priority; obtaining a first synchronization, on the basis of the first synchronization source; receiving a plurality of synchronization signals from a plurality of synchronization sources; obtaining a plurality of synchronizations, on the basis of the plurality of synchronization signals; selecting a second synchronization source from among the plurality of synchronization sources, on the basis of a gap between a time related to the first synchronization and a time related to a second synchronization being greater than or equal to a threshold value, wherein the second synchronization is obtained on the basis of the second synchronization source; and transmitting, to a second apparatus, a sidelink-synchronization signal block (S-SSB), on the basis of the first synchronization or the second synchronization. For example, the first synchronization source and the second synchronization source may comprise at least one of a global navigation satellite system (GNSS), a base station, or user equipment. For example, the S-SSB may comprise a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH).

Method and apparatus for selecting plurality of time synchronizations in NR V2X

An operations method of a first devicein wireless communication system is proposed. The method may comprise: obtaining information related to a measurement gap period in which a plurality of SL PRS configurations are configured; selecting at least one second resource for a transmission of a second PRS, based on a second SL PRS configuration included in the plurality of SL PRS configurations, such that a number of overlapping resources with at least one first resource related to a first SL PRS configuration is less than or equal to a threshold.

Method and device for SL PRS transmission based on measurement gap

A first device receives information related to an absolute location of a positioning reference from the positioning reference; obtains a first PRS reception timing based on a positioning reference signal (PRS) received from the positioning reference; obtains a second PRS reception timing at which a second device receives the PRS from the positioning reference, based on a phase difference value between first RSs received on first subcarriers from the second device; obtains a third PRS reception timing at which a third device receives the PRS from the positioning reference, based on a phase difference value between second RSs received on second subcarriers from the third device; estimates a relative location of the positioning reference, based on the first PRS reception timing, the second PRS reception timing, and the third PRS reception timing; and obtains location information of the first device based on the absolute location and the relative location.

Method and apparatus for performing sidelink-based positioning

Provided is a method for a first device to perform wireless communication. The method may include the steps of: receiving a configured grant from a base station; transmitting a first transport block through a first sidelink resource related to a first hybrid automatic repeat request (HARQ) process ID and allocated by the configured grant; failing to transmit the first transport block; and transmitting a second transport block through a second sidelink resource related to a second HARQ process ID and allocated by the configured grant, on the basis of the second HARQ process ID related to the second sidelink resource being the same as the first HARQ process ID.

Method and device for transmitting transport block in NR V2X

A first apparatus performs wireless communication by receiving an RRC message including information related to a first sidelink (SL) resource; receiving first DCI related to activation of the first SL resource via a first PDCCH at a first time, the first DCI including information related to a first PUCCH resource for reporting HARQ feedback; receiving second DCI related to release of the first SL resource via a second PDCCH at a second time; transmitting, to a second apparatus, a transport block (TB) via a physical sidelink shared channel (PSSCH) based on the first SL resource between the second time and a third time; and transmitting, to a base station, the HARQ feedback for the TB based on the first PUCCH resource. The first SL resource is released from the third time, the first time is before the second time, and the second time is before the third time.

Method and apparatus for reporting HARQ feedback in NR V2X

Disclosed are a method and device for a first terminal to transmit a positioning reference signal (PRS) through a physical sidelink feedback channel (PSFCH) in a wireless communication system supporting sidelink communication according to various embodiments. Disclosed are a method and device, wherein the method comprises the steps of: allocating a first frequency resource region for a PRS within a resource region for the PSFCH so that the PRS is multiplexed with a feedback signal; transmitting allocation information on the first frequency resource region; and transmitting the PRS and the feedback signal through the PSFCH on the basis of the allocation information, wherein the size of the first frequency resource region is determined on the basis of the size of a pre-configured frequency resource for the feedback signal and the type of the multiplexing, and the allocation information includes information on the multiplexing type, the size of the first frequency resource region, and the start frequency of the first frequency resource.

Method and device for terminal to transmit positioning reference signal in wireless communication system supporting sidelink communication

The present disclosure relates to a positioning method using a sidelink, and a device. According to one aspect, a method of performing positioning through a sidelink by a vehicle terminal can comprise the steps of: receiving a request positioning reference signal (PRS) from a positioning terminal; determining the positioning terminal-based direction angle on the basis of the request PRS; determining a response PRS ID corresponding to the request PRS ID of a request RRS, on the basis of the determined direction angle; and transmitting a response PRS corresponding to the determined response PRS ID. The vehicle terminal is capable of communicating with at least one of another vehicle terminal, a UE related to an autonomous driving vehicle, the BS or a network.

Positioning method using sidelink, and device therefor

Proposed is a method for performing wireless communication by a first device. The method may comprise the steps of: receiving a configured grant from a base station; transmitting a first physical sidelink control channel (PSCCH) or a first physical sidelink shared channel (PSSCH) to a second device through a first sidelink resource assigned by the configure grant; receiving a dynamic grant from the base station through a physical downlink control channel (PDCCH), wherein the dynamic grant comprises index information of the configured grant related to the dynamic grant; and on the basis of the index information of the configured grant, retransmitting the first PSCCH or the first PSSCH to the second device through a second sidelink resource assigned by the dynamic grant.

Method and device for identifying transmission resource on basis of control information in NR V2X

Disclosed are a method and apparatus for determining a position of a Vehicle-to-Everything (V2X) device in a wireless communication system according to various embodiments. Disclosed are a method and apparatus, the method comprising the steps of: receiving a first signal from a first road side unit (RSU) and a second signal from a second RSU through a first antenna and a second antenna distributed over a predetermined distance; measuring a first time difference that is a reception time difference for the first signal and a second time difference that is a reception time difference for the second signal between the first antenna and the second antenna; and determining the position of the V2X device on the basis of the first time difference and the second time difference.

Method for determining location of V2X device in wireless communication system supporting sidelink, and apparatus therefor

A method by which a terminal operates in a wireless communication system, according to one embodiment, comprises the steps of: receiving time difference of arrival (TDoA) slots from anchor nodes (ANs); and measuring the position of the terminal by using the TDoA slots, wherein the TDoA slots include control information of the ANs and positioning reference signals (PRSs) of the ANs.

Method and apparatus for measuring position of terminal in wireless communication system

Growing community of inventors

Seoul, South Korea

Woosuk Ko