Apparatuses, methods, and systems are disclosed for multiple resource allocation mode configurations. One method includes receiving information indicating a plurality of resource allocation mode configurations. Each resource allocation mode configuration corresponds to a logical channel of a plurality of logical channels. The method includes determining a plurality of data transmission scheduling modes for the plurality of logical channels. Each data transmission scheduling mode corresponds to a logical channel of the plurality of logical channels based a resource allocation mode configuration of the logical channel, and each data transmission scheduling mode comprises: a first scheduling mode; a second scheduling mode different from the first scheduling mode; or a third scheduling mode comprising the first scheduling mode and the second scheduling mode. The method includes transmitting a buffer status report based on the plurality of the data transmission scheduling modes.

Apparatuses, methods, and systems are disclosed for directional transmission/reception of groupcast and unicast communication. One apparatus (800) includes a transceiver (825) that performs (1005) a plurality of sidelink transmissions (115, 501) with different spatial directions and receives (1015) a feedback transmission from a receiving UE. Here, each of the plurality of sidelink transmissions (115, 501) is carried out from one of a plurality of antenna panels (407), where the sidelink transmissions contain an embedded sidelink reference signal. The apparatus (800) includes a processor (805) that determines (1020) a best antenna panel (407) for sidelink transmission based on the received feedback transmission. An apparatus is also disclosed that identifies a set of candidate sidelink resources and measures signal strength using a plurality of beams at a plurality of antenna panels. It excludes at least one sidelink resource from the set of candidate sidelink resources, where the exclusion is on a per-antenna-panel basis. The apparatus selects a sidelink resource from the remaining candidate sidelink resources for performing sidelink communication using a beam at an antenna panel. Yet another apparatus dentifies a downlink pathloss between the apparatus and a RAN node and identifies at least one first antenna panel facing the RAN node and simultaneously used for sidelink communication. Here, the apparatus includes a plurality of antenna panels used for sidelink communication. The apparatus reduces a sidelink power for the at least one first antenna panel based on the downlink pathloss, while ignoring the downlink pathloss for sidelink power control for the remaining antenna panels used for sidelink communication.

Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment. An example method generally includes transmitting, on a sidelink channel using a first power level, a reservation of a resource for a sidelink transmission by the UE; determining to use a second power level for the reserved resource for the sidelink transmission; and transmitting on the sidelink channel on the reserved resource using the second power level.

One disclosure of the present specification provides a method by which a UE performs sidelink communication. The method may comprise the steps of: determining transmission power for SL transmission on the basis of capability information of the UE; determining transmission timing for the SL transmission on the basis of the capability information of the UE; and transmitting an SL signal on the basis of the transmission timing and the transmission power.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, during an accumulation period, a plurality of transmit power control (TPC) commands that are based at least in part on one or more sidelink communications transmitted by the UE. The UE may determine a transmit power adjustment for the UE based at least in part on the plurality of TPC commands. The UE may selectively adjust a transmit power of the UE based at least in part on the transmit power adjustment. Numerous other aspects are provided.

Aspects of this disclosure relate to a user equipment (UE) for wireless communication within a network. The UE receives, from a radio access network (RAN) entity, one of an uplink indication or an uplink port identification associated with an uplink port. The uplink indication and the uplink port identification are associated with an uplink message. The UE also maps one of the uplink indication to a sidelink indication associated with a sidelink message or the uplink port identification to a sidelink port identification associated with a sidelink port and the sidelink message. The UE further superposition codes the uplink message and the sidelink message into a broadcast transmission based on one of (A) the uplink indication and the sidelink indication, or (B) the uplink port and the sidelink port. In addition, the UE transmits, to the RAN entity, the broadcast transmission.

This disclosure provides systems, methods, and devices for wireless communication that support controlling transmit power of one or more groups of user equipment (UE) sidelinks using a single sidelink control transmission of group transmit power control (TPC) information. A first UE may transmit group TPC information to one or more groups of UEs, such as by including the group TPC information in sidelink control information (SCI). The group TPC information may include a group TPC indicator and one or more TPC messages for providing one or more group TPC commands with respect to groups of sidelinks. The group TPC commands may provide for power control with respect to a respective group of UEs for one or more channels. Other aspects and features are also claimed and described.

Disclosed are a method for performing in-vehicle cooperative communication by a user equipment (UE) in a wireless communication system supporting a sidelink, according to various embodiments and an apparatus therefor. Disclosed are a method for performing in-vehicle cooperative communication and an apparatus therefor, the method comprising the steps of: receiving, from a group owner (GO), a first signal including a group ID for a first group; receiving information of transmission parameters for the first group, on the basis of the first signal; and performing cooperative communication for the first group, on the basis of the transmission parameters. The transmission parameters include information about transmission power determined on the basis of the length of the vehicle in which the first group is located.

Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may determine a first sidelink pathloss based at least in part on a first sidelink reference signal from a second UE. The first UE may also determine a second sidelink pathloss based at least in part on a second sidelink reference signal received from a third UE. The first UE may transmit, during a transmission time interval, a first sidelink transmission to the second UE using a first transmit power that is based at least in part on the first sidelink pathloss and a second sidelink transmission to the third UE using a second transmit power that is based at least in part on the second sidelink pathloss. The first sidelink transmission may be transmitted at a first frequency and the second sidelink transmission may be transmitted at a second frequency.

Methods and apparatuses for carrier selection are described. In one example, a method of carrier selection for a frequency-hopping wireless communication device includes using a fixed set of available carriers to hop over during communications. The method includes allocating a subset of the available carriers to a long-range carrier class. In one example, the subset of available carriers consists of at least two carrier clusters spaced widely in the frequency spectrum. The method further includes monitoring a transmit power level in the wireless communication device. The method further includes using the long-range carrier class to hop over during communications if the wireless communication device transmit power is greater than a predetermined level.