Patent ID: 11881950
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for performing, by a first device, wireless communication, the method comprising:
receiving, through radio resource control (RRC) signaling, a configured sidelink grant;
setting a hybrid automatic repeat request (HARQ) process ID for a first physical sidelink shared channel (PSSCH) duration to a first HARQ process ID derived based on the first PSSCH duration occurring in a first configured grant (CG) period of the configured sidelink grant, based on the configured sidelink grant being activated and the first PSSCH duration corresponding to a first PSSCH transmission opportunity within the first CG period of the configured sidelink grant;
setting a new data indicator (NDI) to a toggled value compared to a value of a previous transmission corresponding to sidelink identification information and a first sidelink process ID of a medium access control (MAC) protocol data unit (PDU),
wherein there is one-to-one mapping between HARQ process IDs including the first HARQ process ID and sidelink process IDs including the first sidelink process ID, and
wherein the sidelink identification information includes a source ID related to the first device, a destination ID related to a second device, and a cast type indicator related to the previous transmission; and
transmitting to the second device, sidelink control information (SCI) including the first sidelink process ID and the NDI, on the first PSSCH duration.