H04B7/06954

TECHNIQUES FOR BEAM MEASUREMENT REPORTING
20220386158 · 2022-12-01 ·

Methods, systems, and devices for wireless communication are described. A communication device, such as a user equipment (UE) may receive control signaling indicating a sidelink beam reporting resource configuration. The UE may receive a set of reference beams from a second device (e.g., another UE) over a sidelink. In some examples, the UE may perform a set of beam measurements based on a beam measurement occasion during at least one of a time period before an active duration. The UE may transmit a beam measurement report to the second device in accordance with the sidelink beam reporting resource configuration. The beam measure report being transmitted during at least one of a time period before the active duration, a time period during the active duration, or a combination thereof. The beam measurement report may be based on the set of beam measurements associated with the set of reference beams.

Communication device, communication method, and program

A communication device includes: a communication unit that performs wireless communication; and a control unit (103) that performs control so that a plurality of synchronization signals is patterned and arranged in regions to which resources of the wireless communication are allocated and is transmitted to another terminal device, the plurality of synchronization signals being associated with each of a plurality of beams allocated to be available for inter-device communication between different terminal devices, in which the control unit (103) performs control so that a pattern in which the plurality of synchronization signals is arranged is switched according to a predetermined condition.

RECEIVING BEAM SCHEDULE FOR SIDELINK COMMUNICATIONS
20230095891 · 2023-03-30 ·

Methods, systems, and devices for wireless communications are described. A first wireless device, such as a user equipment (UE), may be configured to communicate with one or more other wireless devices (e.g., another UE) via sidelink communications. The first wireless device may receive an indication of a schedule of resources for sidelink communications to be performed over a communication beam, the schedule indicating a set of resources corresponding to a beam configuration for the sidelink communications with a second wireless device. The first wireless device may communicate with the second wireless device via one or more sidelink channels based on configuring the communication beam using the beam configuration over the set of resources. In some examples, the indication of the schedule of resources may be received in a confirmation of the schedule established by the second wireless device or, in some examples, in a request to establish the schedule.

SIDELINK BEAM INFORMATION SENSING AND TRANSMISSION

A user equipment includes at least one processor and at least one memory including computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the user equipment to: select radio resources for a first sidelink transmission to a first user equipment based on sidelink control information from a second user equipment, the sidelink control information including at least beam information for a second sidelink transmission by the second user equipment; and perform the first sidelink transmission to the first user equipment on the selected radio resources.

JOINT COMMUNICATION-RANGING CHANNEL ESTIMATION IN SIDELINK
20230100617 · 2023-03-30 ·

Aspects relate to techniques for joint communication-ranging (JCR) channel estimation. A first wireless communication device may transmit a sidelink message to a second wireless communication device and receive bistatic communication channel feedback from the second wireless communication device based on the sidelink message. The first wireless communication device may further transmit a ranging signal, such as a radar signal or lidar signal, and obtain a monostatic ranging channel estimate based on the received reflected ranging signals. The first wireless communication device may then associate and correlate the monostatic ranging channel estimate with the bistatic communication channel feedback to obtain joint communication-ranging (JCR) side information. The first wireless communication device may then transmit a sidelink transmission to the second wireless communication device using a transmit power and/or a beamforming parameter selected based on the JCR side information.

METHOD OF CODEBOOK SOUNDING REFERENCE SIGNAL (SRS) ANTENNA MAPPING TO IMPROVE UPLINK PERFORMANCE

Aspects are described for a user equipment (UE) comprising a transceiver configured to enable wireless communication with a base station; and a processor communicatively coupled to the transceiver. The processor is configured to receive a sounding reference signal (SRS) resource configuration from the base station, wherein the SRS resource configuration indicates at least a first SRS resource and a second SRS resource. The processor is further configured to transmit a first SRS via the first SRS resource to the base station using a first antenna coupled to the transceiver and transmit a second SRS via the second SRS resource to the base station using a second antenna coupled to the transceiver. The processor is further configured to receive an SRS resource indicator (SRI) from the base station based on at least one of the transmission of the first SRS or the second SRS; select the first antenna based on the SRI indicating the first SRS resource; and transmit uplink data to the base station using the first antenna.

CHANNEL STATE INFORMATION REPORT CANCELLATION
20230093523 · 2023-03-23 ·

Methods, systems, and devices for wireless communications at a first user equipment (UE) are described. The first UE may receive, from a second UE over a sidelink channel, a first channel state information report, a second channel state information report, and a first transmission configuration indicator, The first UE may select at least one of the first channel state information report or the second channel state information report to be canceled based on receiving an indication associated with the first transmission configuration indicator. The first UE may cancel information included in at least one of the first channel state information report or the second channel state information report based at least in part on the selecting. The first UE may receive a data transmission based at least in part on the cancelling.

TECHNIQUES FOR SIDELINK REFERENCE BEAMS

Methods, systems, and devices for wireless communications are described. A first user equipment (UE) (e.g., Tx UE) may transmit or receive a first control message indicating a sidelink beam measurement configuration for performing a sidelink beam sweep procedure using a set of transmit beams. The first UE may select a subset of transmit beams from the set of transmit beams for the sidelink beam sweep procedure based on one or more parameters associated with the sidelink beam measurement configuration. The first UE may then transmit, to a second UE (e.g., Rx UE) during the sidelink beam sweep procedure, a set of sidelink reference signals using respective transmit beams of the subset of transmit beams.

BEAM MEASUREMENT ON SIDELINK

Methods, systems, and devices for wireless communications are described. Wireless communications systems may support beam measurements triggered by a wake-up signal (WUS) and that triggers an active duration of a receiving user equipment (UE). The WUS may trigger the receiving UE to perform a beam sweeping procedure during a beam measurement occasion that immediately preceding the active duration, or the UE may perform the beam sweeping procedure in the WUS resource itself. A UE may perform beam measurement procedures during active durations of a discontinuous reception (DRX) cycle, or outside of active durations of the DRX cycle. A receiving UE may be configured with a timing for performing a beam measurement procedure based on one or more offset values. The timing offset values may indicate a timing during active durations or prior to active durations.

Spatial preemption indication for downlink, uplink, and sidelink transmissions

Some aspects provide a method for wireless communication by a user equipment (UE). The method generally includes receiving signaling of a spatial preemption indication (PI), identifying, based on the spatial PI, at least one beam that the UE is preempted from using for at least one of transmitting or receiving at least one target signal, and refraining from using the identified beam for transmitting or receiving the target signal, for at least a time period.