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 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 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 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 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 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 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.

Abstract: A wireless device may receive a message indicating a priority threshold. The wireless device may receive, from a first wireless device, sidelink control information indicating a first resource of a first sidelink transport block and a priority of the first sidelink transport block. The wireless device may determine a resource, for a sidelink transmission of the wireless device, overlaps with the first resource. The wireless device may release, based on the priority and the priority threshold, the resource for the sidelink transmission.

Abstract: A wireless device receives a first configuration message comprising a cell specific time division duplex (TDD) uplink (UL)-downlink (DL) pattern indicating a number of uplink slots. A size of a sidelink resource pool bitmap based on the number of the uplink slots is determined. The wireless device receives, based on the size of the sidelink resource pool bitmap, a second configuration message comprising a sidelink resource pool bitmap. One or more sidelink slots are determined by applying the sidelink resource pool bitmap to the uplink slots. The wireless device transmits one or more transport blocks via the one or more sidelink slots.

Abstract: According to an embodiment of the present disclosure, a method for performing wireless communication by a UE in a first cell is provided. The method may include: obtaining first N streams based on precoding of a transmit symbol vector obtained based on N data symbols, and transmitting the first N streams to an AP based on first M antennas, wherein the first N streams are received by the AP included in the first cell based on second M antennas, wherein the precoding is performed based on a cross-channel from the UE to a second cell which is different from the first cell, and wherein the N is equal to half of the M, and the M and the N are positive integers.

Abstract: A method of measuring a location of a first user equipment (UE) in a wireless communication system includes the first UE receiving predetermined information from a second UE and the first UE measuring the location of the first UE based on the predetermined information. The predetermined information includes information related to correction of a first reference signal timing difference (RSTD).

Abstract: A first base station communicates, with one or more wireless devices, packets via a first cell operating in an unlicensed spectrum. The first base station determines a channel occupancy ration (CR) of the first cell, wherein the CR is for a plurality of time intervals and indicates a ratio of utilization, for transmissions by the first cell, of unlicensed channel resources. The first base station transmits, to a second base station, the CR.

Abstract: A first wireless device receives, from a second wireless device, one or more configuration messages comprising a sidelink latency upper bound for sidelink channel state information (CSI) reporting. The first wireless device receives, from the second wireless device and during a time slot, a sidelink CSI reporting triggering indication via a physical sidelink shared channel. The first wireless device determines, based on receiving the sidelink CSI reporting triggering indication, one or more sidelink CSI reporting resources within a time period indicated by: the sidelink latency upper bound and starting from the time slot. The first wireless device transmits one or more sidelink CSIs on the one or more sidelink CSI reporting resources.

Abstract: The present invention provides a vehicle-to-X (V2X) operation method performed by a V2X terminal in a wireless communication system, the method comprising: selecting, in a selection period, a subframe excluding a subframe relating to a subframe in which transmission has been performed during a sensing period; and performing a V2X communication on the basis of the selected subframe.