The Design Of Resource Scheduling Scheme In LTE-A System

In recent years, with the continuous development of the mobile communication technology, mobile users require higher system throughput and better Quality of Service. Therefore, the3GPP puts forward the LTE-Advanced system. Although LTE-A is the evolution of LTE system, its performance have a high improved. It introduces three mainly technology, that’s the Carrier Aggregation technology, collaborative multipoint transmission technology and Relay technology.This Thesis mainly researches the scheduling schemes in LTE-A system with carrier aggregation. The main goal of the current research is to improve the system throughput, but less research in reducing scheduling delay. While system improves the transmission rate using a large extensional bandwidth, it may increase the system resource scheduling time. This article considered from two aspects, to reduce the scheduling delay and improving the system performance. The first scheme is that the proposed model system which classify the user data according to the different characteristics of the user data, then system transmits the classified data with different scheduling scheme. The second scheme is that the system operates the RB using specific principles before every scheduling time slot. The scheme divided the RB into a number of RB set, then the scheme assigned RB set as a whole to the qualified users. Simulation shows the two proposed scheme show better performance in reducing scheduling delay.