LTE-Advanced中继系统频谱分配方法研究

In order to fulfill the requirement of high data rate wireless services in the future wireless communication system, LTE-Advanced systems need to provide higher performance in terms of both average cell throughput and cell edge user throughput. Wireless Relay，as a lower-power and lower-cost network node, has been introduced into the LTE-Advanced systems. It offers more flexible deployment options and it can effectively improve spectral efficiency as well as coverage. In such systems, different spectrum assignment schemes can be made according to different optimal targets, which result in coverage extension or, alternatively, capacity improvement. In this paper, chapter 2 proposes resource assigning methods of relay with the respect of increasing system throughput and extending edge coverage. In chapter 3 and 4, system level simulations are carried out in scene 3GPP Case 1 and Case 3 to evaluate the affections of resource assignment algorithms in access link in capacity and coverage.