Lg Electronics Inc.

Uihyun Hong

Hanbyul Seo

Seungmin Lee

Daesung Hwang

Hyukjin Chae

Yunjung Yi

Hyunho Lee

Youngtae Kim

Jongyoul Lee

Sungyong Kang

An embodiment provides an operation method of a sidelink reception terminal in a wireless communication system, the method comprising the steps of: receiving a first physical sidelink shared channel (PSSCH) and a second PSSCH by a sidelink reception terminal; and transmitting feedbacks for the first PSSCH and the second PSSCH through a first physical sidelink feedback channel (PSFCH) resource and a second PSFCH resource, respectively, by the sidelink reception terminal, wherein the first PSSCH and the second PSSCH are received in different slots, and a first PSFCH related to the first PSSCH and a second PSFCH related to the second PSSCH are transmitted through different frequency resources within an identical time resource area.

Operation method of UE related to sidelink communication and feedback in wireless communication system

A method for performing wireless communication by a first apparatus and an apparatus for supporting same are provided. The method may comprise the steps of: receiving a physical sidelink control channel (PSCCH) from a second apparatus; receiving a physical sidelink shared channel (PSSCH) related to the PSCCH from the second apparatus; determining a physical sidelink feedback channel (PSFCH) resource related to the PSSCH, on the basis of a slot and sub-channel related to the PSSCH; and obtaining a channel busy ratio (CBR) value related to PSFCH transmission on the PSFCH resource. The CBR value may be obtained on the basis of (i) a first slot before a first offset from a slot that received the PSSCH related to the PSFCH resource, and (ii) measurement in a time section between the first slot and a second slot before a second offset.

Method and apparatus for performing congestion control in NR V2X

An embodiment relates to a method for operating a first user equipment (UE) in a wireless communication system, the method comprising the steps of: receiving, by the first UE, second CBR information from a second UE; and determining a change in a frequency band on the basis of the second CBR information and first CBR information generated by the first UE, wherein a frequency band of the first UE is narrower than a frequency band of the second UE, and the second CBR information is generated by the second UE on the basis of the frequency band of the first UE.

Method for operating UE related to CBR in wireless communication system

An aspect of the present disclosure is a method for a user equipment in a wireless communication system, wherein a sidelink control signal is transmitted on an aggregation slot including a plurality of slots, and a first sidelink data signal and a second sidelink data signal are transmitted on the aggregation slot on the basis of the sidelink control signal. The priority set for the second sidelink data signal is higher than that set for the first sidelink data signal. A second slot, on which the second sidelink data signal is transmitted, among the plurality of slots is selected on the basis of sensing information for selecting a first slot, on which the first sidelink data signal is transmitted, among the plurality of slots.

Method for transmitting and receiving sidelink signal in wireless communication system

Provided in some implementations is a sidelink-related operation method of a first user equipment (UE) in a wireless communication system, including the steps in which: a first UE receives, from a second UE, a physical sidelink control channel (PSCCH) including modulation coding scheme (MCS) information; a channel status information reference signal (CSI-RS) and a physical sidelink shared channel (PSSCH) related to the PSCCH are received; CSI is derived on the basis of the CSI-RS; and the first UE transmits, to the second UE, a CSI report including the CSI, wherein the CSI is derived on the basis of the determination of an MCS table.

Operation method of UE related to sidelink CSI report in wireless communication system

Provided are a method by which a first device performs wireless communication, and an apparatus supporting same. The method may comprise the steps of: allocating at least one resource block (RB) from among a set of a plurality of RBs for a physical sidelink feedback channel (PSFCH) in a PSFCH slot, with respect to a physical sidelink shared channel (PSSCH) resource; performing PSSCH reception from a second device on the basis of the PSSCH resource related to the PSFCH slot; and transmitting hybrid automatic repeat request acknowledgment (HARQ-ACK) information to the second device in response to the PSSCH reception, on the basis of the at least one RB allocated with respect to the PSSCH resource.

Method and apparatus for configuring PSFCH resource in NR V2X

An aspect of the present disclosure is a method for user equipment in a wireless communication system, wherein a physical sidelink control channel (PSCCH) and a physical sidelink shared channel (PSSCH) are received on an aggregation slot including a plurality of slots, and a sidelink signal is transmitted on a resource selected on the basis of at least one among a reference signal received power (RSRP), a received signal strength indication (RSSI), and a reference signal received quality (RSRQ), which are measured from the aggregation slot. The RSRP is measured from each of slots, on which a plurality of PSCCHs are received, among the plurality of slots on the basis of the plurality of PSCCHs being received on the aggregation slot.

One embodiment relates to a method for operating an RX UE in a wireless communication system, comprising the steps in which: the RX UE performs automatic gain control (AGC) in an aggregation set; and the RX UE receives a sidelink signal through the aggregation set, on the basis of the AGC, wherein the aggregation set starts from a predetermined slot related to the number of slots included in the aggregation set.

Method for operating sidelink UE in slot aggregation in wireless communication system

Disclosed in one embodiment is an operating method of a sidelink receiving terminal in a wireless communication system, comprising the steps of: receiving a physical sidelink shared channel (PSSCH); and transmitting a physical sidelink feedback channel (PSFCH) after receiving the PSSCH, wherein the receiving terminal performs Tx/Rx switching in one part of a first symbol, which is the symbol after the last symbol in which the PSSCH is received, transmits a signal related to automatic gain control (AGC) in the remaining part of the first symbol, and transmits the PSFCH in the symbol after the first symbol.

Operating method of UE related to sidelink communication and feedback transmission resource in wireless communication system

According to an embodiment of the present disclosure, a method for performing SL communication by a first device is provided. The method comprises the steps of: determining a plurality of first bits on which interleaving is to be performed from among a plurality of bits of a first encoded code block and a plurality of second bits except for the plurality of first bits from among the plurality of bits of the first encoded code block; performing interleaving on the plurality of first bits; transmitting, to a second device, the plurality of first bits on which the interleaving has been performed, on a plurality of first REs related to the plurality of first bits; and transmitting, to the second device, the plurality of second bits on a plurality of second REs related to the plurality of second bits.

Interleaving for code block

An embodiment is a method for a user equipment (UE) to transmit a phase-tracking reference signal (PTRS) related to sidelink in a wireless communication system, the method comprising the steps of: generating demodulation reference signals (DMRSs) related to a physical sidelink shared channel (PSSCH); generating a PTRS related to the PSSCH; and transmitting the PTRS and at least a portion of the DMRSs, wherein a DMRS sequence mapped to a prescribed position in a first PSSCH symbol in which the DMRSs are transmitted is used for generating the PTRS, and the prescribed position corresponds to a frequency location at which the PTRS is transmitted and includes a frequency location at which the generated DMRSs are not transmitted.

UE operation method related to sidelink PTRS in wireless communication system

Provided are a method by which a first device performs wireless communication and an apparatus for supporting same. The method may comprise the steps of: determining a first PSSCH resource selected by a second device; selecting a second PSSCH resource; and transmitting a PSSCH by using the second PSSCH resource. Here, a PSFCH resource related to the second PSSCH resource may not overlap a PSFCH resource related to the first PSSCH resource.

Method and apparatus for selecting PSSCH resource in NR V2X

One embodiment relates to a sidelink terminal device which transmits a PSCCH in a wireless communications system, the device comprising: a memory; and a processor coupled to the memory, wherein the processor transmits a PSCCH by using at least some resources among PSCCH candidate resources associated with PSSCH candidate resources, and the resources for transmitting the PSCCH include a number Z of sequential resource blocks (RBs) and also include the center frequency of the PSCCH candidate resources on the frequency axis.

Method whereby sidelink terminal transmits pscch in wireless communications system, and device therefor

One embodiment is an operation method of a user equipment (UE) in a wireless communication system, the method comprising the steps of: transmitting a 1st stage sidelink control information (SCI) on a PSCCH; and transmitting a 2nd stage SCI on a PSSCH, wherein a first scrambling sequence associated with the 1st stage SCI is generated on the basis of a fixed value, and a second scrambling sequence associated with the 2nd stage SCI is generated on the basis of a cyclic redundancy check (CRC)-related value.

Growing community of inventors

Seoul, South Korea

Uihyun Hong