Methods and apparatuses for channel occupancy indication on a sidelink (SL) in a wireless communication system. A method of operating user equipment (UE) includes receiving a SL control information (SCI) format over a sidelink channel; determining, from the SCI format, at least one of: time domain information for a channel occupancy, frequency domain information for the channel occupancy, and a SL channel access procedure. The method further includes performing the SL channel access procedure before a sidelink transmission; and transmitting, upon successfully performing the sidelink channel access procedure, the SL transmission over the SL channel within the channel occupancy based on the time domain information or the frequency domain information for the channel occupancy.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a sidelink cancellation indication that indicates a set of resources in which to cancel sidelink communications, wherein the set of resources overlaps with at least one of a physical sidelink feedback channel (PSFCH), a gap symbol, or a sidelink synchronization signal block (S-SSB). The UE may perform one or more sidelink cancellation actions associated with the at least one of the PSFCH, the gap symbol, or the S-SSB. Numerous other aspects are described.

An operation method of a first terminal in a communication system is provided. The method includes transmitting information that indicates a delay bound value of a sidelink (SL) channel state information (CSI) report to a second terminal. Sidelink control information (SCI) including CSI request information in transmitted to the second terminal. A monitoring operation is performed to receive the SL CSI of the second terminal within a time period corresponding to the delay bound value from a time of transmitting the CSI request information.

An operation method of a first terminal in a communication system is provided. The method includes transmitting information that indicates a delay bound value of a sidelink (SL) channel state information (CSI) report to a second terminal. Sidelink control information (SCI) including CSI request information in transmitted to the second terminal. A monitoring operation is performed to receive the SL CSI of the second terminal within a time period corresponding to the delay bound value from a time of transmitting the CSI request information.

This application discloses a service data transmission method and apparatus, a terminal, and a base station. The service data transmission method includes: performing sending and/or receiving of service data according to SL and WLAN interworking configuration information.

This application discloses a service data transmission method and apparatus, a terminal, and a base station. The service data transmission method includes: performing sending and/or receiving of service data according to SL and WLAN interworking configuration information.

An aggregation configuration method and apparatus, and a terminal are provided. The method includes: sending first aggregation configuration information to a second terminal, where the first aggregation configuration information is used for configuring an aggregation operation aggregating a sidelink (SL) between the first terminal and the second terminal with another access technology.

An aggregation configuration method and apparatus, and a terminal are provided. The method includes: sending first aggregation configuration information to a second terminal, where the first aggregation configuration information is used for configuring an aggregation operation aggregating a sidelink (SL) between the first terminal and the second terminal with another access technology.

Aspects are provided which allow a base station to indicate use of a mini-slot based resource allocation in sidelink communications between a Tx UE and a Rx UE. Initially, the base station configures control information indicating a sidelink data resource for a mini-slot, and transmits the control information to a Tx UE. After the Tx UE receives the control information, the Tx UE transmits sidelink data in the sidelink data resource to a Rx UE. Similarly, the Rx UE receives the control information from either the Tx UE or the base station, and the Rx UE receives the sidelink data in the sidelink data resource from the Tx UE. Accordingly, the base station may schedule the Tx UE and Rx UE to communicate sidelink data in mini-slots rather than slots, thereby reducing scheduling latency, increasing the number of available resources, and achieving more flexibility in sidelink communications.

Methods and apparatuses for inter-user equipment (UE) co-ordination signaling in a wireless communication system. A method of operating a UE includes receiving a first stage sidelink control information (SCI) format that includes information on a second stage SCI format. The first stage SCI format is a SCI format 1-A and the second stage SCI format is a SCI format 2 -C. The method further includes receiving the SCI format 2-C and determining, based on an indicator field in the SCI format 2-C, a type of information included in the SCI format 2-C.