Patent ID: 11956757
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. An apparatus for wireless communication, comprising
a processor, the processor comprising a combination of intelligent hardware devices;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
select a first resource within candidate resources for transmitting a first device-to-device (D2D) transmission;
determine remaining resources of the candidate set of resources based at least in part on removing the first resource from the candidate set of resources;
select a second resource, for a second D2D transmission, from the remaining candidate resources after selecting the first resource and within a predetermined fixed time window from the first resource,
the second transmission being a hybrid acknowledgment feedback, the hybrid acknowledgment feedback indicating successful or unsuccessful receipt of a transmission;

transmit the first D2D transmission on the first resource and the second D2D transmission on the second resource,
the first D2D transmission and the second D2D transmission each comprises a sidelink transmission, the selecting the second resource being randomly selected,
the second resource for the D2D transmission being after or starting before the selected first resource,
the 2nd D2D transmission being a retransmission of the acknowledgement feedback without receiving a negative acknowledgement of the first transmission,

the processor being further configured to alternatively skip the second resources and to not transmit the second D2D transmission.