Design And Implement Of GPRS/EDGE Protocol Stack In Multi-Mode Terminal Test Set

GPRS/EDGE are the most frequently and widely used packet switch systems in 2G network of mobile communications. Along with the 3G mobile communications system being commercialized, the convergence of 2G and 3G communications system is imperative. GPRS/EDGE terminal test set, which is a plus of TD-SCDMA/GSM Dual-mode terminal test set, intends to achieve RF conformance test of GPRS/EDGE mobile terminals.Protocol stack software is the core of terminal test set softwares. Based on research of GPRS/EDGE protocol stack and software architecture of the test set, this paper analyses the functions of network side of GPRS/EDGE system, proposes implementation method of GPRS/EDGE protocol stack, designs mechanism of scheduler and logic of process in the controller, implements signaling interaction between test set and mobile terminal, accomplishes fuctions of terminal RF conformance test supported by GPRS/EDGE protocol stack.The achievement of this paper has been put into practice in Multi-mode terminal test set and gained positive effects in market. The test set provides complete solutions for certification, development and production of TD-SCDMA/GSM/GPRS/EDGE Multi-mode terminals.