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0引言随着通信行业的快速发展和传统通信业务优势的下降,全球通信业的发展使得运营商、制造商都在寻求新的业务收入增长点[1]。目前3G技术在全球普及,业界普遍认为增值业务将是3G业务竞争的主战场,第二代GSM移动通信网的传输速度为9·6kbit/s,而第三代手机最终可能达到的数据传
0 Introduction With the rapid development of the communications industry and the decline in the advantages of traditional communications services, the development of the global communications industry has led operators and manufacturers to seek new business revenue growth points. At present, the popularity of 3G technology in the world, the industry generally believes that value-added services will be the main battlefield 3G services competition, the second generation GSM mobile communication network transmission speed of 9.6 kbit / s, while the third generation of mobile phones may eventually reach the data transfer