Sidelink Synchronization Source Priority For Reliable UE Timing

The patent applies parameter changes by introducing priority parameters associated with different synchronization sources. The UE compares these priority parameters to determine which synchronization source to select, transforming the ambiguous multi-source selection problem into a parameter-based decision process. This resolves the contradiction by providing a clear selection criterion that maintains synchronization accuracy while supporting multiple sources.

The patent applies preliminary action by pre-configuring priority parameters for different synchronization sources before the UE needs to make a selection. These priorities are established in advance through network configuration or predefined rules, allowing the UE to autonomously and quickly select the appropriate synchronization source without real-time network control, thus achieving both fast synchronization and reliable source selection.

The patent applies parameter changes by transforming multiple quality parameters (RSRP, RSRQ, etc.) into a single priority parameter through network configuration. Instead of requiring the UE to independently evaluate and weigh multiple parameters, the network provides a simplified priority value that encapsulates the quality assessment, thus maintaining signal quality reliability while reducing selection process complexity.