Patent ID: 11870594
Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method comprising:
determining, by a first user equipment comprising a processor, that first sidelink control information received via a sidelink control channel is successfully decoded and that second sidelink control information received via a sidelink shared channel is not successfully decoded, wherein the first sidelink control information and the second sidelink control information are received from a second user equipment, and wherein the first sidelink control information is received at a first defined resource of the sidelink control channel and the second sidelink control information is received at a second defined resource of the sidelink shared channel;
based on the second sidelink control information not being successfully decoded, transmitting, by the first user equipment, negative acknowledgement data on an indicated feedback channel based on a group hybrid automatic repeat request feedback procedure, wherein, based on the first sidelink control information being successfully decoded, a successful acknowledgement is not transmitted by the first user equipment; and
based on the transmitting, preparing, by the first user equipment, a channel estimator to receive respective retransmissions from respective user equipment of a group of user equipment; and
receiving, by the first user equipment, respective retransmissions of the second sidelink control information via the sidelink shared channel from the respective user equipment of the group of user equipment in response to the negative acknowledgement data.