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This paper describes the overall design framework of the monitoring for radio control signaling on Iub interface. Because of the complexity of the Iub interface protocol stack, the protocol configuration parameters acquisition solution of radio control signaling based on AAL2 which mainly used Hash indexing techniques is proposed. The intelligent inference module generates the protocol parameters on common channel while the parameters on the dedicated channel are from the protocol association module. According to the channel RRC transmit on, the latter is divided into two situations: RRC transmit on common channel and RRC transmit on dedicated channels. Then on the basis of it, how to get the configuration parameters are given. At last the adoption of the actual data prove that the methods can fastly, automatically obtain the transmission channel parameters.