Patent ID: 11871312
Assignee: MEDIATEK INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A method of vehicle-to-everything (V2X) communication in New Radio (NR), comprising:
receiving, by a processor of an apparatus implemented in a first user equipment (UE), a signaling from a network node of a wireless network, the signaling semi-statically pre-configuring a set of sidelink resources within a resource pool for a sidelink between the first UE and a second UE;
transmitting, by the processor, a packet or transport block (TB) to the second UE on the sidelink using a first sidelink resource selected by the first UE from the semi-statically pre-configured set of sidelink resources;
receiving, by the processor, a hybrid automatic repeat request negative acknowledgement (HARQ-NACK) from the second UE responsive to the second UE failing to decode the packet or TB;
switching, by the processor, from a first mode of operation to a second mode of operation before a retransmission of the packet of TB to the second UE due to the NACK-ACK;
receiving, by the processor, scheduling-related information from the second UE via a sidelink control information (SCI) signaling or a medium access control (MAC) control element (CE) signaling; and
retransmitting, by the processor, the packet or TB to the second UE on the sidelink using the second mode of operation,
wherein, in the first mode of operation, resource allocation for the sidelink is controlled by the network node,
wherein, in the second mode of operation, the resource allocation for the sidelink is preconfigured by the network node and autonomously controlled by the first UE,
wherein the switching comprises:
switching from SCI monitoring to downlink control information (DCI) monitoring for a retransmission configuration; or
switching from the DCI monitoring to the SCI monitoring for the retransmission configuration.