Rx-Tx Time Difference Reporting for 5G Propagation Delay Estimation

The patent introduces an intermediary mechanism where the base station provides reference signal sequences and timing information, which the UE uses to measure and report Rx-Tx time differences. This intermediary approach enables accurate propagation delay determination without requiring complex direct measurements between UEs, thus improving measurement precision while controlling device complexity.

The patent implements a feedback mechanism where the UE measures the Rx-Tx time difference and reports it to the base station, which then uses this feedback information to determine propagation delay. This feedback loop enables accurate delay determination while distributing the computational complexity between the base station and UE, managing overall system complexity.

The patent employs periodic action through semi-persistent scheduling, where the UE reports Rx-Tx time differences at predetermined intervals rather than continuously. This periodic reporting improves resource utilization efficiency by reducing constant signaling overhead while maintaining adequate measurement accuracy, and reduces processing complexity compared to continuous monitoring and reporting.

The patent implements dynamic adjustment capabilities where the reporting frequency and resources can be adapted based on channel conditions and traffic requirements. This dynamic approach optimizes resource utilization efficiency by allocating signaling resources only when necessary, while managing processing complexity through conditional triggering rather than fixed continuous operation.