NR V2X Power Allocation Priority Mechanism

The patent implements dynamic power allocation by introducing a priority indicator field in DCI format 30 that allows the network to dynamically adjust and indicate different priority levels for sidelink transmissions. This enables the power allocation mechanism to adapt to varying transmission priorities rather than using fixed standardized rules, thereby achieving fair power allocation for sidelink while maintaining compatibility with existing uplink frameworks.

The patent changes the parameter structure by adding a priority indicator field (2 bits) to DCI format 30, which enables the network to signal different priority levels (0-3) for sidelink transmissions. This parameter change allows the terminal to differentiate between various sidelink priority requirements and allocate power accordingly, resolving the unfair power allocation issue while maintaining standardized interface compatibility.

The patent applies preliminary action by having the network pre-configure and indicate the priority level through DCI format 30 before the actual power allocation occurs. The terminal receives the priority indicator in advance, stores it, and uses this pre-indicated priority information to perform power allocation according to the signaled priority level. This approach maintains simplicity while enabling flexible priority-based allocation.

The patent introduces a priority indicator field as an intermediary element between the network's scheduling decisions and the terminal's power allocation actions. This intermediary carries the priority information from the network side through DCI format 30 to the terminal, enabling the terminal to perform appropriate power allocation without requiring complex internal priority assessment mechanisms, thus balancing flexibility and simplicity.