Signalling analysis of Uu interface in TD-SCDMA network analyzer

The procedure of signalling monitoring on Uu interface protocol stack in TD-SCDMA system is deeply researched. A brief introduction to structure of the user plane of Node B and control plane of Uu interface as well as the way to get transport format on common transport channel is presented. Furthermore, the procedure of segmentation and reassembly of RLC message in Uu interface stack is analyzed. Then, on the basis of it, the algorithm for getting Uu data from FP data frames of Iub interface and implementing signalling monitoring is proposed. The program module of this algorithm is tested in practical environment and the result shows that it is capable of monitoring and analyzing signalling messages of Uu through Iub monitoring.