Abstract: A first wireless device determines a number of sidelink slots configured in a sidelink resource pool. The first wireless device determines a second reservation period in units of slots based on a first reservation period in milli-second (ms) and the number of sidelink slots. The first wireless device transmits a transport block via one or more transmission resources selected based on the second reservation period.

Abstract: A wireless device transmits one or more maximum numbers of multiple-input multiple-output (MIMO) layers for reception of a physical downlink shared channel (PDSCH), of a cell, scheduled by downlink control information (DCI) from each transmit/receive point (TRP) of a plurality of TRPs of the cell. The wireless device receives one or more parameters indicating a first number of MIMO layers, for a first TRP of the plurality of TRPs of the cell, wherein the first number of MIMO layers is equal to or less than a first maximum number of MIMO layers, of the one or more maximum numbers of MIMO layers, corresponding to the first TRP. The wireless device receives one or more transport blocks with a second number of MIMO layers, wherein the second number is equal to or less than the first number.

Abstract: A wireless device receives one or more parameters indicating a plurality of sidelink carriers, a discontinuous transmission (DTX) threshold value, and a channel busy ratio (CBR) threshold value for a sidelink carrier selection procedure. The wireless device selects one or more first sidelink carriers from the plurality of sidelink carriers. The wireless device determines that the number DTXs on at least one sidelink carrier is equal to the DTX threshold value. Based on the determining, the wireless device triggers the sidelink carrier selection procedure and transmits a message indicating the at least one sidelink carrier. The wireless device selects, during the triggered sidelink carrier selection procedure and based on a CBR being below the CBR threshold value, a third sidelink carrier from the plurality of sidelink carriers. The wireless device transmits, to the second wireless device, a sidelink transport block (TB) via the third sidelink carrier.

Abstract: Provided are a method for performing sidelink transmission by a first apparatus (100) and an apparatus for supporting same. The method may comprise steps of: determining to perform first sidelink transmission related to LTE and second sidelink transmission related to NR; and performing any one of the first sidelink transmission or the second sidelink transmission on the basis of a priority order of the first sidelink transmission and a priority order of the second sidelink transmission.

Abstract: One embodiment of the present invention relates to a method for transmitting, by a terminal, feedback on a signal from another terminal in a wireless communication system. The method for transmitting feedback information comprises the steps of: receiving signals transmitted by a plurality of terminals; and transmitting feedback information on each of at least parts of the received signals, wherein the feedback information is transmitted together with data of the terminal transmitting the feedback information, and the feedback information includes time information that allows the terminals that transmitted each of the parts of signals that are subject to the feedback to recognize that the feedback information is feedback on the signals transmitted by the same terminals. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the BS or a network.

Abstract: A wireless device receives a radio resource control (RRC) message indicating a first resource pool of a sidelink (SL) communication. The wireless device determines, from a candidate resource set in the first resource pool, a SL grant indicating resources for one or more SL transmissions of the SL communication. The wireless device receives, by a medium access control (MAC) layer from a physical layer of the wireless device, an indication of SL listen before talk (LBT) failure of a first resource of the resources indicated in the SL grant. Based on the indication, the wireless device selects, for the first resource, a second resource from the first resource pool excluding resources associated with SL LBT failure. The wireless device transmits, via the second resource, the one or more SL transmissions of the SL communication.

Abstract: According to an embodiment, proposed herein is an operating method of a first apparatus in a wireless communication system. The method may include the steps of determining a first region for selecting resources related to transmission of sidelink information, and adjusting the first region to a second region based on information related to sidelink HARQ feedback.

Abstract: A first wireless device may receive, from a base station, one or more first messages indicating downlink (DL) discontinuous reception (DRX) parameters comprising a DL DRX on-duration start offset. The first wireless device may determine a starting time of a sidelink DRX (SL DRX) on-duration based on the DL DRX on-duration start offset. The first wireless device may receive, from a second wireless device, one or more sidelink transport blocks during the SL DRX on-duration.

Abstract: A base station may transmit, to a first wireless device, a timing offset indicator indicating an offset, in slots, between a sidelink feedback resource and an uplink feedback resource. The base station may receive, from the first wireless device and in an uplink slot, a sidelink feedback report. A first sidelink feedback resource within a sidelink slot may be at a time indicated by the offset from a second sidelink feedback resource for a sidelink transport block transmitted by the first wireless device to a second wireless device. The uplink slot may overlap with the first sidelink feedback resource in time, and the uplink slot may be a last uplink feedback slot overlapping with the first sidelink feedback resource.

Abstract: Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise the steps of: establishing a first session for SL communication with a second device; transmitting auxiliary information relating to the SL communication to a base station; and receiving information on a resource relating to the SL communication from the base station.

Abstract: A method may include transmitting, to a wireless device, radio resource control (RRC) messages that include parameters of a multicast and broadcast service (MBS). The parameters may indicate a first feedback operation with hybrid automatic repeat request (HARQ) feedback being enabled and may indicate a second feedback operation with the HARQ feedback being disabled. A group common downlink control information (DCI) may indicate one of the first feedback operation or the second feedback operation. The method may also include transmitting a first group common DCI, which may schedule a first transport block (TB) of the MBS and may indicate the first feedback operation. The method may further include receiving, based on the first group common DCI indicating the first feedback operation, a first HARQ feedback for the first TB.

Abstract: A destination wireless device receives, from a base station, configuration parameters of physical sidelink feedback channel (PSFCH) radio resources. The destination wireless device receives, from a source wireless device, sidelink control information comprising an identity (ID) of the source wireless device. The destination wireless device transmits, to the source wireless device, an acknowledgement for a transport block via a PSFCH radio resource having an index. The index is based on: the ID of the source wireless device, an ID of the destination wireless device, and a modulo operation performed on a quantity of the PSFCH radio resources.

Abstract: A base station transmits a radio resource control (RRC) message to a wireless device. The RRC message comprises configuration parameters for scheduling a plurality of physical uplink shared channels (PUSCHs) via a downlink control information (DCI). The configuration parameters comprise an indication indicating whether a dynamic determination of a PUSCH of the plurality of PUSCHs for multiplexing an uplink control information (UCI) is enabled or disabled. The UCI overlaps with a first PUSCH of the plurality of PUSCHs. In response to the indication indicating that the dynamic determination is enabled, the base station receives, from the wireless device, the UCI via a second PUSCH of the plurality of PUSCHs.

Abstract: A method can include transmitting, by a second wireless device to a first wireless device, sidelink control information (SCI) indicating a request for resource selection by the first wireless device for one or more sidelink communications with the second wireless device. The method can also include transmitting, by the second wireless device to the first wireless device, a medium access control (MAC) control element (CE) indicating a reservation interval for the resource selection by the first wireless device for the one or more sidelink communications with the second wireless device to the first wireless device. The method can further include receiving, by the second wireless device from the first wireless device, a message indicating a set of resources selected by the first wireless device for the one or more sidelink communications.

Abstract: A first wireless device transmits, to a second wireless device, a request message for a set of non-preferred resources for a sidelink transmission by the first wireless device. The first wireless device receives, from the second wireless device, coordination information indicating the set of non-preferred resources. A priority of the coordination information equals a priority of the sidelink transmission. Reference signal received powers (RSRPs) of the set of non-preferred resources are higher than an RSRP threshold.

Abstract: A wireless device may receive, based on an RNTI associated with a multicast and broadcast services (MBS) session, a group common downlink control information (DCI) scheduling a transport block (TB) of the MBS session. Based on the RNTI being associated with the MBS session, the wireless device may determine a scrambling identity for a TB of the MBS session. The wireless device may receive the TB scrambled with a scrambling sequence initialized based on a value of the scrambling identity and a value of the RNTI.

Abstract: A wireless device determines sidelink configurations for sidelink communications that indicate: zone configurations for sidelink transmissions; and communication range thresholds each corresponding to a respective zone configuration of the zone configurations. The wireless device transmits, to one or more second wireless devices, sidelink control information, SCI, that indicates: a zone, of a first zone configuration of the zone configurations, indicating a geographic location of the first wireless device; and a first communication range threshold, of the first zone configuration, indicating a communication range of the sidelink transmissions.

Abstract: A method can include receiving radio resource control messages indicating a bandwidth part (BWP), of a cell, including first resource blocks (RBs) and second RBs, indicating common frequency resources, including the first RBs of the BWP, associated with a multicast and broadcast service (MBS) configured for wireless devices including the wireless device, and including a radio network temporary identifier (RNTI) associated with the MBS. The method can also include receiving, via the common frequency resources of the BWP, a group common downlink control information (DCI) addressed to the RNTI. The group common DCI can indicate a multicast transmission of a transport block to the wireless device. The group common DCI can be different from a second DCI indicating unicast transmission for a second transport block. The method can further include starting a BWP inactivity timer of the cell in response to receiving the group common DCI.

Abstract: A wireless device receives configuration parameters comprising an indication of a sidelink resource pool comprising first feedback radio resources and second feedback radio resources, a first feedback parameter for selecting the first feedback radio resources of the sidelink resource pool, and a second feedback parameter for selecting the second feedback radio resources of the sidelink resource pool. The wireless device receives a sidelink control information (SCI). The wireless device selects, based on the SCI, one or more radio resources from the first feedback radio resources based on the first feedback parameter or the second feedback radio resources based on the second feedback parameter. The wireless device transmits a hybrid automatic repeat request (HARQ) feedback for a received sidelink transmission via the selected one or more radio resources.

Abstract: A wireless device receives one or more radio resource control (RRC) messages comprising configuration parameters of uplink switching for a plurality of bands. The plurality of bands comprise a first band associated with a first priority, and a second band associated with a second priority. The wireless device determines, for an uplink switching between the first band and the second band, an uplink switching period location to be in the first band, based on the first priority being lower than the second priority. The wireless device transmits, based on the uplink switching period location, an uplink transmission via one of the first band and the second band.