Decoding and upper layer PDU getting of SCCP in TD-SCDMA network analyzer

Taking signalling analyzing function of TD-SCDMA network analyzer as research background, the basic conception, function and message structure of signalling connection control part (SCCP) in 3G protocol stack are introduced. And on the basis of the introduction, the assembly approach of practical data and the decoding of SCCP are discussed for putting forward a solution to software implementation of SCCP module in network tester. SCCP lies in transport layer of protocol stack, and its research pattern and method have instructional and promotion meaning for other protocols in transport layer.