Wireless Positioning Signal Control With Dynamic PRU Registration

The patent implements dynamic PRU registration by allowing UEs to automatically register as PRUs when they satisfy predefined conditions (such as being in a stationary state or meeting position change thresholds) and to deregister when conditions are no longer met. This dynamic approach enables the system to adaptively select suitable UEs as PRUs based on real-time conditions, improving positioning reliability without requiring continuous manual configuration or permanent registration, thereby reducing overall device complexity and resource consumption.

The patent employs multiple sets of position change thresholds (first threshold, second threshold, third threshold) that can be configured based on different service requirements and environmental conditions. By adjusting these threshold parameters, the system can flexibly balance between positioning precision and the availability of PRUs. Stricter thresholds improve measurement accuracy while more relaxed thresholds expand the pool of available PRUs, allowing optimization based on specific operational needs.

The patent implements periodic positioning operations where assistance data is updated and PRU registration is refreshed at predetermined time intervals or when specific triggering conditions are met. This periodic approach ensures that positioning services remain responsive and accurate without requiring continuous data transmission and processing. By updating assistance data and PRU status periodically rather than continuously, the system maintains positioning speed and responsiveness while significantly reducing communication overhead and energy consumption compared to continuous updates.