Communication devices are provided that facilitate receiving information units and providing feedback to other communication devices.

In an audio apparatus including a first device and a second device that each receive the same audio data transmitted from a source device, a device having the worse reception environment of the audio data out of the first device and the second device, operates as a primary device that performs a retransmission request for the audio data to the source device, and a device having the better reception environment operates as a secondary device that performs the retransmission request for the audio data to the primary device.

A method for performing wireless communication by a first device, and a device for supporting same are provided. The method may comprise: transmitting, to a second device, at least one physical sidelink control channel (PSCCH) and at least one physical sidelink shared channel (PSSCH) related to the at least one PSCCH; receiving, from the second device, at least one sidelink (SL) hybrid automatic repeat request (HARQ) feedback information through at least one physical sidelink feedback channel (PSFCH) related to the at least one PSSCH; and determining a priority value of physical uplink control channel (PUCCH) transmission for reporting the at least one SL HARQ feedback information to a base station, based on at least one priority value of the at least one SL HARQ feedback information.

Methods and systems for improving the robustness of wireless communications. The methods and systems provided transmit data packets over one or more isochronous stream and transmit one or more supplemental data packets over the same time intervals. The one or more supplemental data packets are used to recreate and/or enhance at least a portion of one or more data packets of the plurality of data packets that have already been sent. Alternatively, the one or more supplemental data packets are used to create and/or enhance at least a portion of one or more data packets of the plurality of data packets that will be received during the next isochronous intervals. The methods and system described herein allow for increased robustness by allowing for better retransmission with correctly received packets.

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.

Certain aspects of the present disclosure provide techniques for enhanced feedback transmission for sidelink communication in unlicensed spectrum. A method that may be performed by a first user equipment (UE) includes receiving a sidelink transmission in a frequency band from a second UE; and transmitting feedback comprising: hybrid automatic retransmission request (HARQ) feedback regarding the sidelink transmission, and an indication of a measure of an energy level of the frequency band as measured by the first UE

Various examples and schemes pertaining to uplink (UL) transmission timing for non-terrestrial networking (NTN) are described. An apparatus receives, from a network, downlink control information (DCI) indicating an NTN offset for a scheduling delay. Accordingly, the apparatus performs one or more UL transmissions to a satellite with the scheduling delay which accounts for the NTN offset.

Provided are methods and apparatuses for transmitting sidelink hybrid automatic repeat request (HARQ) feedback information. The method of a receiver user equipment (UE) includes: receiving configuration information on a physical sidelink feedback channel (PSFCH) resource set, receiving a physical sidelink shared channel (PSSCH) from a transmitter UE, determining a PSFCH resource used for transmitting the HARQ feedback information in response to the PSSCH in the PSFCH resource set based on pre-configured identification information, and transmitting the HARQ feedback information using the PSFCH resource.

A method includes receiving a first indicator indicating distance based HARQ feedback operation with negative acknowledgement only and a first sidelink message grant; and determining that location information associated with a first communication device is unavailable, and based thereon, transmitting a second indicator indicating that location information is unavailable.

Provided are a method for performing wireless communication by a first device and a device for supporting same. The method comprises: receiving, from a base station, information related to a configured grant (CG) resource, wherein the CG resource includes at least one of a first resource related to CG type 1 or a second resource related to CG type 2; receiving, from the base station, information related to a dynamic grant (DG) resource; and performing a first sidelink (SL) transmission based on one of the CG resource or the DG resource.