Lg Electronics Inc.

Giwon Park

Jongyoul Lee

Kiseon Ryu

Hanbyul Seo

Youngdae Lee

Seungmin Lee

Jeongki Kim

Hangyu Cho

Seoyoung Back

Suhwook Kim

Byungjoo Lee

Dongcheol Kim

Jongwoo Hong

Jinsam Kwak

Hyunhee Park

Taesung Lim

Youngsoo Yuk

Youngjun Jo

Jinsoo Choi

Yongho Kim

Jinyoung Chun

Eunjong Lee

Yongho Seok

Jin Soo Lee

Laeyoung Kim

Wookbong Lee

Jiwon Kang

Daesung Hwang

Jaehoon Chung

Heejeong Cho

KiTae Kim

Hyeyoung Choi

Inuk Jung

Jaehyung Song

Woosuk Ko

Jingu Choi

Genebeck Hahn

Jin Ho Lee

Jayeong Kim

Hyunsik Yang

Mingi Kim

Jeonghwan Yoon

Jeongyun Jeong

Young-soo Yuk

Yongsoo Yuk

Jongyoul; Lee

An embodiment provides an operation method of a relay UE related to a sidelink relay in a wireless communication system, the method comprising: receiving, by a relay UE, a relay request from a first remote UE; and determining, by the relay UE, whether to accept the relay request of the first remote UE, wherein the relay request includes first quality of service (QOS)-related information, and the relay UE accepts the relay request on the basis that resource allocation satisfying the first QoS-related information to the first remote UE is possible.

Operation method of relay UE related to relay establishment request in wireless communication system

Provided are a method for performing wireless communication by a first device relaying communication between a second device and a base station, and an apparatus for supporting same. The method may comprise the steps of: establishing a first radio resource control (RRC) connection to the base station; establishing a PC5 connection to the second device; on the basis that there is no data transmission and reception between the first device and the base station, initiating a Uu data inactivity timer; on the basis that there is no data transmission and reception between the first device and the second device, initiating a sidelink (SL) data inactivity timer; and on the basis that the Uu data inactivity timer and the SL data inactivity timer are expired, releasing the first RRC connection between the first device and the base station.

Method and apparatus for performing relaying on basis of data inactivity timer

The present disclosure relates to sidelink retransmission in wireless communications. According to an embodiment of the present disclosure, a method performed by a first wireless device in a wireless communication system comprises: receiving, from a network, sidelink (SL) resources configured with a hybrid automatic repeat request (HARQ) feedback; selecting one or more logical channels only configured with the HARQ feedback; generating a data unit based on the one or more logical channels only configured with the HARQ feedback; and transmitting, to a second wireless device, the data unit based on the SL resources.

Method and apparatus for sidelink retransmission in wireless communication system

An embodiment of the present disclosure provides a method for performing sidelink communication by a first device. The method may comprise the steps of: determining a first resource pool among a plurality of resource pools on the basis of QoS information of first data; and transmitting the first data to a second device in the first resource pool.

Determination of resource pool in NR V2X

A method for performing wireless communication by a first device and an apparatus supporting the same are proposed. For example, the first device may obtain an SL DRX configuration including information related to an SL DRX cycle and information related to a timer for active time. For example, the timer for active time may include at least one of an SL DRX on-duration timer or an SL DRX inactivity timer. For example, the first device may trigger SL DRX command MAC CE reporting related to the PC5-RRC connection. For example, the first device may cancel the triggered SL DRX command MAC CE reporting, based on an MAC reset for the PC5-RRC connection being requested.

Method and apparatus for performing radio communication related to mac reset in NR V2X

A first UE of the present disclosure identifies a first resource for first data and a second resource for second data, transmits, to a second UE, the first data on the basis of control information for allocating the first resource and the first resource, the control information not including reservation information about the second resource notifying of the location of the second resource on the basis of the time interval between the first resource and the second resource being larger than the time interval permitted for the resource reservation, identifies a third resource for the second data in the activation section of a DRX cycle of the second UE, and transmits, to the second UE, the second data on the basis of control information for allocating the third resource and the third resource.

Method and device for resource allocation in wireless communication system

Provided are a method for performing wireless communication by a first device and a device supporting same. The method may comprise the steps of: receiving, from a second device, a first physical sidelink control channel (PSCCH) and a first physical sidelink shared channel (PSSCH) associated with the first PSCCH; receiving, from a third device, a second PSCCH and a second PSSCH associated with the second PSCCH; storing data received over the first PSSCH in a first buffer; storing data received over the second PSSCH in a second buffer; transmitting, to a base station, a scheduling request (SR) and/or a buffer status report (BSR) associated with the first buffer, on the basis that available data is in the first buffer; receiving information associated with a first resource from the base station as a response to the SR and/or BSR associated with the first buffer; and transmitting the data on the first buffer to a fourth device by means of the first resource.

Method and device for requesting transmission resource for relay in NR V2X

Provided are a method for performing wireless communication by a first device, and a device supporting same. The method may comprise the steps of: establishing a radio resource control (RRC) connection with a base station; establishing a PC5 connection with a second device that relays communication between the first device and the base station; setting, on the basis of establishment of the PC5 connection with the second device, a power saving mode for saving power related to Uu communication between the base station and the first device; and performing communication with the base station on the basis of the power saving mode.

Method and device for performing communication on basis of power saving mode

According to an embodiment of the present disclosure, provided is a method by which a first apparatus performs sidelink communication. The method includes the steps of: reserving a plurality of first sidelink transmission resources for transmitting a PSCCH and a PSSCH to a second apparatus; transmitting the PSCCH and the PSSCH to the second apparatus through at least one of the plurality of first sidelink transmission resources; on the basis of a failure of the second apparatus to decode sidelink data included in the PSSCH, reselecting a plurality of second sidelink transmission resources for transmitting the sidelink data; and transmitting the sidelink data to the second apparatus on the basis of the plurality of second sidelink transmission resources.

Method and apparatus for reselecting sidelink transmission resource in NR V2X

According to an embodiment of the present disclosure, provided is a method by which a first apparatus performs sidelink communication. The method may comprise the steps of: transmitting a first transport block to a second apparatus, on a resource allocated by a first SL grant received from a base station; transmitting, to the base station, a system information request message requesting system information; transmitting, on an exceptional resource pool, a second transport block to the second apparatus, on the basis of the transmission of the system information request message to the base station; and receiving, from the base station, first system information related to the system information request message.

Method and apparatus for performing resource pool-based sidelink communication in NR V2X

A method and apparatus for sidelink hybrid automatic repeat request (HARQ) feedback and resource pool selection is provided. When user equipment (UE) autonomous resource selection is configured, a wireless device selects a resource pool configured with physical sidelink feedback channel (PSFCH) resources, among one or more resource pools allowed for a logical channel, based on i) sidelink data being available in the logical channel, ii) any resource pool being not selected for the logical channel, and iii) hybrid automatic repeat request (HARQ) feedback being enabled for the logical channel.

Sidelink HARQ feedback and resource pool selection

An embodiment relates to an operating method of a UE related to a sidelink relay in a wireless communication system, the operating method comprising: receiving, by the UE, a relay functionality enable-related request message; setting, by the UE, a timer; and enabling, by the UE, relay functionality on the basis of expiration of the timer, wherein the timer is released on the basis of receiving a broadcast message notifying relay functionality enable.

Operating method of UE related to relay in wireless communication system

Proposed is an operation method of a first device () in a wireless communication system. The method may comprise the steps of: starting a first timer associated with an on-duration period; receiving, from a second device () via a physical sidelink control channel (PSCCH), first sidelink control information (SCI) for the scheduling of second SCI; receiving, from the second device () via a physical sidelink shared channel (PSSCH), the second SCI, which includes a 16-bit first destination identifier (ID), and a medium access control (MAC) header, which includes an eight-bit second destination ID; acquiring a third destination ID on the basis of the first destination ID and the second destination ID; comparing the third destination ID with a 24-bit first source ID of a first device (); starting a second timer on the basis of the first source ID which is the same as the third destination ID; and carrying out sidelink communication with the second device () on the basis of the second timer which is operating.

Method and device for carrying out timer-based power saving in NR V2X

The present disclosure relates to transmission prioritization in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving, from a network, information for a threshold related to a buffer status report (BSR); prioritizing a logical channel group (LCG) for the BSR based on the threshold, wherein a highest priority of one or more logical channels having data available for transmission in the LCG is lower than the threshold; prioritizing the BSR based on the prioritized LCG; creating a media access control (MAC) protocol data unit (PDU) comprising at least the prioritized BSR; and transmitting the MAC PDU.

Method and apparatus for transmission prioritization in wireless communication system

Provided are a method for a first device carrying out wireless communication, and an apparatus supporting same. The method may comprise the steps of: transmitting sidelink control information (SCI) to a second device via a physical sidelink control channel (PSCCH); transmitting data to the second device via a physical sidelink shared channel (PSSCH) which is associated with the PSCCH; determining a physical sidelink feedback channel (PSFCH) resource on the basis of a slot and subchannel associated with the PSSCH: increasing a DTX counter by one on the basis of failing to receive hybrid automatic repeat request (HARQ) feedback on the PSFCH resource; receiving, from the second device, information related to dropping the transmission of the HARQ feedback; and decreasing the DTX counter by N on the basis of the information related to dropping the transmission of the HARQ feedback. Sidelink (SL) radio link failure (RLF) may be declared on the basis that the DTX counter reaches the maximum number of DTXs, and N may be a positive integer.

Method and device for RLF in NR V2X

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Seoul, South Korea

Giwon Park