Analysis and Optimization of the High Uplink PRB Utilization Rate Problem in LTE Networks

With the continuous growth in the number of mobile network users, the issue of high uplink Physical Resource Block (PRB) utilization rate has become increasingly prominent, severely restricting the improvement of network performance and user experience. This paper starts from the physical layer resource allocation mechanism of LTE networks, deeply explores the causes of high uplink PRB utilization rate, and proposes targeted optimization strategies based on practical cases. By adjusting pre-scheduling parameters, optimizing Scheduling Request (SR) false alarms, and managing abnormal User Equipment (UE) scheduling, the uplink PRB utilization rate is effectively reduced, significantly enhancing network performance and user perception. The research results demonstrate that reasonable configuration of network parameters plays an important role in improving the overall performance of LTE networks.