Abstract: A base station receives from a wireless device one or more first radio resource control messages indicating assistance information and in response transmits to the wireless device one or more second RRC messages indicating one or more configured grant configurations. The assistance information includes an identifier indicating a logical channel and one or more periodicities associated with the logical channel.

Abstract: The present invention relates to a wireless communication system, and in particular, to a method and a device therefor, in which a sequence for a primary sidelink synchronization signal (PSSS) is generated on the basis of a specific cyclic shift value, and the PSSS is transmitted to a second device on the basis of the generated sequence, wherein the specific cyclic shift value is one of a plurality of first cyclic shift values for the PSSS, the plurality of first cyclic shift values are on the basis of a certain ratio being applied to offsets of second cyclic shift values for a downlink primary synchronization signal (DL PSS) sequence, and the intervals between the plurality of first cyclic shift values are maximized.

Abstract: A first wireless device receives, from a base station, one or more radio resource control messages indicating a type of demodulation reference signal (DMRS). A DMRS configuration of a physical sidelink shared channel (PSSCH) is determined based on the type of DMRS and a length of the DMRS. The first wireless device transmits, to a second wireless device, sidelink control information indicating the DMRS configuration of the PSSCH.

Abstract: One embodiment of the present invention relates to a method of measuring and transmitting a Channel occupancy Ratio (CR) by a user equipment in a wireless communication system, the method including measuring the CR evaluated as the number of subchannels related to a transmission of the UE in an interval in a predetermined size and performing the transmission based on the measured CR, wherein the interval in the predetermined size includes both a past time interval and a future time interval with reference to a timing at which the user equipment measures the number of the subchannels.

Abstract: A wireless device receives RRC messages comprising configuration parameters of multicast transmissions, wherein the configuration parameters indicate CFRs comprising a number of resource blocks within a bandwidth part of a cell, a RNTI, and a value of a maximum MIMO layer indication for transmission via the CFRs. The wireless device receives, via the CFRs and based on the RNTI, a group common DCI indicating a multicast transmission of a TB, and the multicast transmission of the TB with a number of MIMO layers equal to or less than the value.

Abstract: Wireless communications for a sidelink are described. A wireless devices and/or a base station may determine at least one resource and/or time period for communications via a sidelink. The base station and/or the wireless device may schedule sidelink communication, based on the determined resource(s) and/or time period(s), which may increase the likelihood of successful sidelink communications between wireless devices.

Abstract: 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.

Abstract: One embodiment of the present invention relates to a method for receiving a sidelink synchronization signal (SLSS) by a terminal in a wireless communication system, comprising the steps of: receiving a physical sidelink broadcast channel (PSBCH); determining which of global navigation satellite systems (GNSS) or an eNB is to be a synchronization source according to priority information included in the PSBCH; and receiving an SLSS associated with the determined synchronization source, wherein the terminal determines that the priority information is valid only when a public land mobile network (PLMN) associated with the priority information matches a PLMN to which the terminal belongs.

Abstract: One embodiment of the present invention relates to a method whereby a terminal transmits data to another terminal in a wireless communication system, the data transmission method comprising the steps of: selecting resources for transmitting multiple pieces of data; and transmitting the multiple pieces of data by using the selected resources, wherein the terminal is configured to execute the transmission through sensing, and if the terminal fails to transmit the data a preset number of times or more in a row, the terminal reselects resources.

Abstract: A method includes receiving, by a wireless device, configuration parameters indicating common frequency resources of multicast and broadcast service (MBS) transmissions are configured within a bandwidth part (BWP) of a cell. The method may also include monitoring, based on the configuration parameters and via the BWP, a first number of PDCCH candidates for unicast transmissions and a second number of PDCCH candidates for the MBS transmissions. A sum of the first number and the second number is less than or equal to a third number associated with a PDCCH monitoring capability of the wireless device. The method may further include receiving a first downlink control information (DCI), via the BWP, scheduling a first transport block (TB) for the unicast transmissions. The method may additionally include receiving a second DCI, via the common frequency resources of the BWP, scheduling a second TB for the MBS transmissions.

Abstract: An aspect of the present invention provides a method for receiving a channel state information-reference signal (CSI-RS) by a terminal in a wireless communication system, the method comprising the steps of: receiving, from a base station, CSI-RS configuration information indicating a CSI-RS configuration about mapping of the CSI-RS; and receiving, from the base station, the CSI-RS which is transmitted through multiple antenna ports, on the basis of the received CSI-RS configuration information, wherein, when the CSI-RS configuration is a 32-port CSI-RS configuration into which four 8-port CSI-RS configurations are aggregated, a code division multiplexing (CDM)-8 pattern, in which the number of orthogonal weight vectors is 8, is applied to the 32-port CSI-RS configuration, wherein the CDM-8 pattern may be applied to one resource element (RE)-pair selected for each of the aggregated 8-port CSI-RS configurations.

Abstract: Presented in one embodiment of the present invention is a method by which a first terminal communicates with a second terminal in a wireless communication system, comprising the steps of: allowing the first terminal to receive control information from a base station; allowing the first terminal to select a transmission resource on the basis of the control information; and allowing the first terminal to communicate with a second terminal on the basis of the transmission resource, wherein the control information is transmitted to the first terminal and the second terminal by the base station, and the control information includes information for preventing a transmission resource selection collision between the first terminal and the second terminal. The first terminal is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.

Abstract: 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.

Abstract: A wireless device transmits one or more radio resource control (RRC) messages indicating assistance information, where the assistant information indicates: an identifier indicating a logical channel; and one or more periodicities associated with the logical channel. The wireless device receives, in response to the assistance information, one or more second RRC messages indicating one or more configured grant configurations. The wireless device triggers a buffer status report in response to data of the logical channel becoming available. In response to receiving one or more activation commands indicating activation of the one or more configured grant configurations, the wireless device cancels the buffer status report.

Abstract: A wireless device receives a radio network temporary identifier (RNTI) for multicast and broadcast services (MBS) of a cell, a first parameter indicating a first location of first common frequency resources (CFR) for the MBS within a first BWP and a second parameter indicating a second location of second CFR for the MBS within a second BWP. The wireless device receives, based on the RNTI, via an active BWP of the cell a group common downlink control information (DCI) scheduling a transport block of the MBS, wherein: the group common DCI is received via the first CFR for the MBS based on the first BWP being the active BWP or the group common DCI is received via the second CFR for the MBS based on the second BWP being the active BWP; and the transport block of the MBS.

Abstract: A wireless device receives one or more radio resource control (RRC) messages comprising one or more configuration parameters of a bandwidth part, wherein the one or more configuration parameters comprise: a first physical uplink control channel (PUCCH) configuration, for reporting uplink feedback, indicating a first PUCCH and a first PUCCH format; and, a second PUCCH configuration, for reporting sidelink feedback, indicating a second PUCCH and a second PUCCH format. The wireless device transmits, via the first PUCCH format and a first PUCCH resource of the first PUCCH configuration, an uplink feedback report of a downlink transport block. The wireless device transmits, via the second PUCCH format and a second PUCCH resource of the second PUCCH configuration, a sidelink feedback report of a sidelink transport block.

Abstract: A wireless device receives one or more configuration parameters including a plurality of sidelink feedback resources, where at least two sidelink feedback resources, of the plurality of sidelink feedback resources, are associated with different values for received signal power, and each of the at least two sidelink feedback resources are at least one of a time resource or a frequency resource. The wireless device selects, based on a received signal power of the different values for the received signal power, a sidelink feedback resource from the at least two sidelink feedback resources. The wireless device transmits a sidelink feedback signal, to a second wireless device, via the sidelink feedback resource.

Abstract: Provided are a method in which a terminal determines whether or not information is successfully transmitted to a plurality of terminals in a group in a wireless communication system, and a device supporting same. The method can comprise the steps of: transmitting the information to a plurality of terminals in the group; receiving zero or one or more feedback information items on a first resource in response to the transmitted information; and determining whether or not the information is successfully transmitted to the plurality of terminals in the group, on the basis of power measured in the first resource and power measured in a second resource.

Abstract: Wireless devices may communicate with each other via a sidelink. Sidelink capability information may be sent and/or used to determine configuration parameters for sidelink communications between wireless devices.

Abstract: Provided is a method for a first device (100) to perform sidelink transmission. The method may comprise: a step for performing sensing on a plurality of resources on the basis of a first resource unit including one or more symbols; a step for selecting a first transmission resource from the plurality of resources on the basis of the sensing; and a step for performing the sidelink transmission on the first transmission resource.