Research And Implementation Of Personal Ringback Tone Service Platform Based On USSD

Along with the growing popularity of mobile communications, and the saturation of traditional voice business, utilizing the resource of wireless communication network and Internet to develop value-added data services has been payed more attention. PRBT value-added service plays an important role in the market with its unique advantages. Unstructured Supplementary Service Data (USSD) is a new interactive data service based on GSM network.USSD provides a way for the real-time transmission between mobile stations and applications having GSM network as a transparent bearing entity. The PRBT value-added service platform based on USSD will have a very good market prospect, because USSD has special advantages compared with other access methods, such as real-time interactivity and providing roaming services.The main work of this paper includes:(1) Introducing the development and application of USSD service and CRBT service, describing the network structure and routing principles,.(2) Implementing message package, message coding, message decoding, and message resolution, as well as message receiving and message sending, and achieving USSD service application protocol further, after carefully studying the application interface specification of USSD and analyzing USSD session flow.(3)According to the application requirements, proposing the modular structure of PRBT service platform, and giving the design and concrete realization of every module, including the service logic module, communication module, database processing module and session management module.(4)Designing test procedure to implement functional test, fault-tolerant test and stress test, and then analyzing the test results.At present, the system has been provided for users by Henan Mobile Communication Company, run stability, and provides users with a new way to PRBT services.