Research and Implementation of CDR synthesis scheme on S1-MME Interface in LTE Network

摘要

With the development of LTE network monitoring system, this paper analyze the LTE network architecture, the control plane's protocol stack of LTE, S1AP signaling information and business processes. According to the characteristics of message flow on S1-MME interface, a new father-child CDR synthesis scheme is put forward which adopts enhanced Hash algorithm and timeout detection mechanism ensure the accuracy and effectiveness of synthesis. The scheme has been successfully applied to LTE network monitor and it performs well.