Techniques and device for wireless communications are described. A wireless device may establish multiple connections with multiple transmission reception points (TRPs). The wireless device may receive downlink control information (DCI) messages from the multiple transmission points and may generate joint hybrid automatic repeat request feedback (HARQ) based on the received downlink control information messages. To support joint HARQ feedback, counter indices may be jointly assigned to the DCI messages generated by the multiple transmission reception points. The method for jointly assigning the DCI messages may be selected based on a level of interference detected in a communications channel. Also, to support joint HARQ feedback, a total counter index in an uplink DCI message may be configured to indicate a total number of DCI message transmitted from a first TRP and a second TRP during a time period.

Aspects of the present disclose provide various methods and apparatuses for communicating, controlling, and configuring component carrier and bandwidth part (BWP). A scheduling entity receives a capability report from a user equipment (UE). The capability report indicates a capability of the UE to utilize at least one of carrier aggregation (CA) or one or more bandwidth parts. The scheduling entity transmits a command to the UE to reconfigure at least one of a CA configuration or a bandwidth part (BWP) configuration. The scheduling entity determines an anticipated response timing of an acknowledgment (ACK) of the command based on the capability report received from the UE. The scheduling entity receives the ACK according to the anticipated response timing.

A Radio Access Network (RAN) wirelessly serves a User Equipment (UE) over a frequency channel based on a radio signal metric. The RAN comprises baseband circuitry and a radio. The baseband circuitry determines when multiple Physical Cell Identifiers (PCIs) are available to serve the UE. In response, the baseband circuitry selects some resource blocks in the frequency channel and generates a UE instruction to measure the radio signal metric for the selected resource blocks. The radio receives the UE instruction for the baseband circuitry and wirelessly transfers the UE instruction to the UE. The radio wirelessly receives a measurement report from the UE that indicates the radio signal metric for the selected resource blocks. The radio transfers the measurement report to the baseband circuitry. The baseband circuitry receives the measurement report and responsively schedules the UE in the selected resource blocks based on the radio signal metric.

Methods, systems, and devices for wireless communication are described. A wireless device may perform a listen before talk (LBT) procedure on a channel bandwidth using an energy detection (ED) threshold. The ED threshold being associated with a transmission bandwidth that is narrower than the channel bandwidth. The wireless device may also, responsive to a successful LBT procedure, transmit on the transmission bandwidth according to a frequency hopping pattern during a first channel occupancy time (COT). The frequency hopping pattern comprises a first resource allocation and a second resource allocation different from the first resource allocation.

A method by a UE for performing a random access procedure is provided. The method comprises transmitting a MSGA, monitoring a MSGB-RNTI within a MSGB window starting from an earliest symbol of an earliest PDCCH occasion after the MSGA transmission, receiving the MSGB in a first slot, the MSGB including a success RAR that contains a HARQ Feedback Timing Indicator, a Physical Uplink Control Channel (PUCCH) Resource Indicator, and a UE Contention Resolution Identity, determining, by a MAC entity, to instruct a lower layer to transmit a HARQ feedback in a second slot in response to the reception of the success RAR, delivering, by the MAC entity, the HARQ Feedback Timing Indicator and the PUCCH Resource Indicator to the lower layer, and performing, by the lower layer, a HARQ feedback delivery on an uplink (UL) resource.

A method includes receiving, through RRC signaling from a base station, indicating a dormancy cell group having at least a first serving cell and a second serving cell, receiving a first indicator indicating a dormant behavior to the first serving cell is to be activated when the first serving cell is activated, receiving a second indicator indicating a dormant behavior to the second serving cell is to be deactivated when the second serving cell is activated. The method also includes receiving a cell activation indication to activate the first serving cell and the second serving cell, activating the first serving cell and the second serving cell, applying the dormant behavior to the first serving cell based on the first indicator when the first serving cell is activated, and not applying the dormant behavior to the second serving cell based on the second indicator when the second serving cell is activated.

A communication method and apparatus and a communication system, the communication apparatus being provided in a terminal equipment, and the communication apparatus comprising: processing circuitry configured to acquire or select communication resources determined based on a mapping between vehicle-to-everything (V2X) services and communication resource parameters; and communication circuitry configured to transmit target V2X services by using the communication resources. The communication resources may be determined according to the mapping between vehicle-to-everything (V2X) services and communication resource parameters. Certain embodiments making the communication resources meet requirements of the V2X services.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an adjusted contention window size for a listen-before-talk (LBT) procedure that increases channel access time fairness between a plurality of different groups of UEs. The UE may determine, via the LBT procedure, that a channel is idle based at least in part on the adjusted contention window size. The UE may transmit, to other UEs in a group of UEs that includes the UE, control information that enables a group channel occupancy time (COT) associated with the channel to be shared with the other UEs in the group of UEs. Numerous other aspects are described.

A wireless communication method of a wireless communication apparatus for supporting a plurality of radio access technologies (RATs) including receiving a first downlink signal corresponding to a first RAT and a second downlink signal corresponding to a second RAT from a base station through a first frequency band, decoding the first downlink signal, detecting the second downlink signal based on a result of decoding of the first downlink signal, and decoding the detected second downlink signal to acquire data included in the second downlink signal may be provided.

A method for wireless communication performed by a sensing user equipment (UE) includes identifying resource availability during a sensing window. The method further includes receiving a request to share resource information with a transmitter UE. The method still further includes determining a sharing condition is satisfied. The method also includes sharing the resource availability with the transmitter UE based on satisfying the sharing condition.