Abstract: A wireless device receives one or more first radio resource control (RRC) messages comprising configuration parameters indicating: a first sensing window of a first sensing procedure; and a second sensing window of a second sensing procedure. The wireless device selects, based on the first sensing window, a first candidate resource set for one or more sidelink transmissions. The wireless device selects, based on the second sensing window and for the one or more sidelink transmissions, a second candidate resource set from the first selected candidate resource set. The wireless device transmit the one or more sidelink transmissions via one or more resources of the second candidate resource set.

Abstract: A first wireless device receives, from a second wireless device, one or more messages indicating one or more location areas where the first wireless device continuously monitors for one or more sidelink signals. The first wireless device determines that the first wireless device is located in the one or more location areas. Based on the determining, the first wireless device starts continuous monitoring of a control channel for the one or more sidelink signals from a third wireless device. The first wireless device receives, from the third wireless device and based on the starting continuous monitor, the one or more sidelink signals.

Abstract: A wireless device receives a radio resource control (RRC) message that includes configuration parameters for scheduling a plurality of physical uplink shared channels (PUSCHs) via a downlink control information (DCI). In an embodiment, the configuration parameters may include an indication enabling a dynamic determination of a PUSCH of the plurality of PUSCHs for multiplexing an uplink control information (UCI). In an additional embodiment, the UCI may overlap with a first PUSCH of the plurality of PUSCHs. The wireless device may transmit the UCI via a second PUSCH of the plurality of PUSCHs in response to a failed listen-before-talk (LBT) procedure for the first PUSCH.

Abstract: A wireless device receives receive, from a base station, radio resource control messages comprising configuration parameters of a first semi-persistent scheduling (SPS) for multicast and broadcast services (MBS), wherein the configuration parameters of the first SPS comprise a first hybrid automatic repeat request acknowledgment (HARQ-ACK) codebook index. The wireless device receives a multicast transport block (TB) based on receiving a group common downlink control information (DCI) indicating an activation of the first SPS. The wireless device transmits first feedback for the multicast TB in a first HARQ-ACK codebook, of HARQ-ACK codebooks, indicated by the first HARQ-ACK codebook index.

Abstract: The present invention relates to a method and apparatus for transmitting and receiving an acknowledgement/negative-acknowledgement (ACK/NACK) by a terminal for vehicle-to-everything (V2X) communication in a wireless communication system. Particularly, the method comprises the steps of: receiving a configuration for a resource pool for V2X communication; for a particular wireless resource in a resource pool, when a reception time point of a first ACK/NACK and a transmission time of a second ACK/NACK have been simultaneously configured, determining a use of the particular wireless resource; and transmitting and receiving one ACK/NACK selected from the first ACK/NACK and the second ACK/NACK, on the basis of the use of the particular wireless resource. The UE 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: A wireless device receives one or more messages. The one or more messages comprise a sidelink priority for a sidelink transmission via a sidelink resource pool; a first priority threshold for the sidelink resource pool; and a second priority threshold for the sidelink resource pool. The sidelink transmission overlapping with a configured uplink transmission is transmitted based on comparing the sidelink priority with: the first priority threshold in response to the configured uplink transmission being a first priority class; and the second priority threshold in response to the configured uplink transmission being a second priority class.

Abstract: Disclosed are a method and an apparatus by which user equipment controls transmission power of a sidelink signal in a wireless communication system that supports a sidelink, according to various embodiments. Disclosed are a method and an apparatus by which user equipment controls transmission power of a sidelink signal in a wireless communication system that supports a sidelink, wherein the method comprises the steps of: calculating required power for each antenna unit included in a plurality of antenna units to which the sidelink signal is transmitted; determining reference transmission power on the basis of the required power calculated for the plurality of antenna units; and allocating transmission power for the plurality of antenna units on the basis of the reference transmission power.

Abstract: An embodiment of the present invention is a device-to-device (D2D) signal receiving method in which a terminal receives a D2D signal in a wireless communication system. The method includes the steps of: receiving a first medium access control protocol data unit (MAC PDU); receiving a second MAC PDU; and determining whether to combine the first MAC PDU and the second MAC PDU in order to decode; wherein whether to combine the first MAC PDU and the second MAC PDU in order to decode is determined from the number of transmissions of MAC PDUs and an NDI that have been instructed to the terminal.

Abstract: A wireless device receives a first message configuring one or more time intervals for transmissions of coordination information for one or more sidelink transmissions by a second wireless device. The coordination information indicates a set of resources for the one or more sidelink transmissions and/or a resource collision between a first resource and a second resource. A first sidelink control information (SCI) of the one or more sidelink transmissions includes a parameter indicating resource reservation of the first resource and the first wireless device receives a second SCI indicating resource reservation of the second resource. The wireless device selects, from the one or more time intervals, a time interval based on a discontinuous reception (DRX) active time of the second wireless device. The wireless device transmits, during the DRX active time and to the second wireless device and based on the time interval, the coordination information.

Abstract: A group of wireless devices may use shared resources to communicate information to a base station. At least one configuration parameter (e.g., QoS parameter(s)) associated with over-the-air computation may be used for group uplink transmissions. Data associated with the group of wireless devices may be determined, based on an aggregation of the group uplink transmissions, and/or may be provided to a network node using the configuration parameter(s).

Abstract: A wireless device receives a message comprising one or more sidelink DRX parameters indicating a sidelink DRX inactive time of the first wireless device. The wireless device decodes, from a second wireless device and during the sidelink DRX inactive time, coordination information for one or more sidelink transmissions by the first wireless device. The coordination information indicates at least one of a set of resources for the one or more sidelink transmissions or a resource collision between a first resource and a second resource. where a first sidelink control information (SCI) of the one or more sidelink transmissions includes a parameter indicating resource reservation of the first resource and the second wireless device receives a second SCI indicating resource reservation of the second resource.

Abstract: A wireless device receives, from a base station, radio resource control (RRC) messages comprising configuration parameters of multicast transmissions. In embodiments, the configuration parameters may indicate common frequency resources (CFRs) comprising a number of resource blocks within a bandwidth part of a cell, a radio network temporary identifier (RNTI); and a value for a maximum multiple-input-multiple-output (MIMO) layer indication. The wireless device may further receive, via the CFRs and based on the RNTI, a group common downlink control information (DCI) indicating a multicast transmission of a transport block (TB). The wireless device may also receive the multicast transmission of the TB with a number of MIMO layers equal to or less than the value.

Abstract: A wireless device receives parameters, including a first discontinuous reception (DRX) configuration associated with unicast transmissions in a cell and a second DRX configuration associated with multicast and broadcast services (MBS) in the cell. The wireless device may also receive a power saving (PS) indication indicating not to start a DRX on duration timer. The PS indication may be applied for the first DRX configuration; and it may not be applied for the second DRX configuration. The wireless device may further skip monitoring, in a first DRX on duration of the first DRX configuration, first physical downlink control channels (PDCCHs) for the unicast transmissions based on receiving the PS indication. The wireless device may also monitor, in a second DRX on duration of the second DRX configuration and while skipping monitoring the first PDCCHs in the first DRX on duration, second PDCCHs for the MBS.

Abstract: An embodiment of the present invention provides a method in which a terminal transmits a device-to-device (D2D) signal in a wireless communication system. The D2D signal transmission method includes: transmitting D2D control information; and transmitting D2D data corresponding to the D2D control information, wherein the D2D control information and the D2D data are transmitted in the same subframe, and the D2D control information and the D2D data are always adjacent to each other in the frequency axis.

Abstract: An embodiment of the present invention provides a method for a first UE to transmit a physical sidelink shared channel (PSSCH) in a wireless communication system, the PSSCH transmission method comprising: a step of excluding subframes, used by a second UE, from candidate subframes for PSSCH transmission; and a step of selecting a subframe for transmitting a PSSCH and transmitting the PSSCH, after excluding the subframes, used by the second UE, from the candidate subframes, wherein the subframes used by the second UE include subframes assumed to be repeatedly used by the second UE according to a reservation period of the second UE, wherein, if the reservation period of the second UE is smaller in value than a predetermined value, the shorter the reservation period of the second UE becomes, the greater the number of the subframes assumed to be repeatedly used becomes.

Abstract: A base station transmits, to a wireless device, configuration parameters of a control resource set in a bandwidth part (BWP), and the control resource set includes resource block (RB) sets of the BWP. The base station transmits a control information via one or more control channel elements (CCEs) of first CCEs within a first RB set of the RB sets. The base station receives, from the wireless device, a signal via an uplink resource based on an index of a CCE of the one or more CCEs of the first CCEs. The index is determined based on first index values, of the first CCEs within the first RB set, starting from a same initial value as that of index values of CCEs within each respective RB set of the RB sets.

Abstract: A wireless device receives one or more radio resource control (RRC) messages comprising parameters of multicast and broadcast services (MBS) on a cell comprising a first bandwidth part (BWP) and a second BWP, wherein the parameters indicate: a first starting resource block (RB) of first RBs, within the first BWP, that are first common frequency resources for the MBS; a second starting RB of second RBs, within the second BWP, that are second common frequency resources for the MBS; and a radio network temporary identifier (RNTI) for the MBS. The wireless device receives, while the first BWP is active on the cell, via the first RBs and based on the RNTI: a group common downlink control information (DCI) scheduling a transport block of the MBS; and the transport block.

Abstract: A wireless device receives, from a base station, an indication for wireless device assisted resource selection being enabled or disabled. The wireless device receives, from a second wireless device and based on the indication, a configuration message indicating a subset from a plurality of subsets in a resource pool. The wireless device transmits one or more transport blocks via one or more transmission resources selected based on the configuration message.

Abstract: Downlink signals, such as synchronization signals and/or reference signals, may be used for facilitating communications between communication devices. The downlink signals may be dynamically reconfigured, for reduced resource consumption, using control channel signaling with reduced resource overhead. Reconfiguration of downlink signals may be based on determined traffic volume in the communication network to minimize any impact of the reconfiguration on network performance.

Abstract: A wireless device may receive one or more configuration messages indicating a plurality of resource pools. The wireless device may further measure a plurality of channel busy ratios (CBRs) for the plurality of resource pools based on a CBR measurement window size. The wireless device may also compare the measured CBRs between resource pools by applying a weighting factor. In an embodiment, the weighting factor may be determined based on a relative size of each resource pool of the plurality of resource pools. The wireless device may further select a resource pool for a sidelink transmission among the plurality of resource pools based on the comparing and transmit one or more transport blocks based on a determined transmission parameter.