CPC H04W 72/02 (2013.01) [H04L 1/1819 (2013.01); H04L 1/1896 (2013.01); H04W 72/0446 (2013.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 80/02 (2013.01)] | 16 Claims |
1. A method performed by a first device adapted to operate in a wireless communication system, the method comprising:
receiving, from a network, a configuration of a pool of resources for a sidelink resource allocation mode 2 in which the first device determines sidelink transmission resources and timing;
autonomously selecting a sidelink grant from the pool of resources for N number of transmissions of a Transport Block (TB) stored for a process;
performing, to a second device, transmission of the TB up to the N number of transmissions;
determining that i) the N number of transmissions is completed and ii) retransmission of the TB is required;
based on the determination that i) the N number of transmissions is completed and ii) retransmission of the TB is required, and that the first device is configured with the sidelink resource allocation mode 2, transmitting, to the network, a request for a retransmission grant for the process wherein the request includes a Hybrid Automatic Repeat request (HARQ) process identifier (ID) associated with the process;
receiving, from the network, the retransmission grant related to the HARQ process ID; and
performing, to the second device, the retransmission of the TB based on the retransmission grant,
wherein the first device is a first wireless device, and
wherein the second device is a second wireless device.
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