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In view of the poor portability, low efficiency of this interface existing monitoring scheme, the paper studies the protocol specification, signaling processes related S6a interface in the LTE (Long Term Evolution, Long Term Evolution) network, etc., then brings forth a synthetic scheme related with the Diameter protocol association. After passing through the current network data test, a relatively accurate method to reproduce S6a interface signaling processes, the scheme verifies the correctness and feasibility of the program, and provides a reliable guarantee basis for monitoring the interface.

KPI indicators of traditional user perception system can not accurately reflect user's perception. Based on the monitoring of Iu-PS interfaces, this paper describes a kind of user perception system of PS domain of TD-SCDMA network. Multi-index set, Multi-dimensional analysis and weight set are adopted to evaluate user perception. Through message decoding, CDR (call data record) synthesis and user perception model foundation, we can evaluate the sense of user perception synthetically, and it is applicable for fault location. First and foremost, the paper focuses on CDR synthesis algorithm and user perception model. According to the test of network data,it is verified that the test result is correct,and the effect is good.

In view of the existing decoding scheme of poor portability and low efficiency, the article analyzes the basic concepts, functions and message structure of the Diameter protocol in LTE (Long Term Evolution) network, then puts forward innovative decoding solutions by using dictionary method to resolve Diameter protocol. After testing by the current network data, the scheme has been verified to be correct and feasible, and effectively solves the decoding issue of Diameter protocol different message types in the LTE network.

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