Design And Implementation Of LLC And MLE Protocol Stack In TETRA Digital Trunking Test System

TETRA wireless communication network has the unique advantages of critical communication systems such as high efficiency,simplicity and high stability.Private network users need a large number of voice dispatch command in their daily work.With the continuous revision of the TETRA,the network has been deployed on a large scale in various industries in China,which requires high requirements for the maintenance and testi of the TETRA system.In order to save testing cost and improve system quality,a professional tetra testing system is urgently needed.This paper designs and implements the LLC and MLE protocol stack in TETRA digital trunk test system,and completes the implementation of the whole test system.Its main work is as follows:I.the background of TETRA test system and the status quo of similar test methods are analyzed.Ii.Completed the requirement analysis of LLC and MLE protocol stack in TETRA standard research and test system.Iii.Completed the summary design and the detailed design of LLC and MLE protocol stack on the test system.Then finished the integration test of the whole system.Iv.Completed the module division,hardware deployment design,user interface design,user layer design and implementation.Then it were used by users.