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This paper identifies common fundamental techniques underlying cdmaOneTM, CDMA2000® and WCDMA technologies, as well as their family of standards. Furthermore, this paper demonstrates that these technologies predominantly share the same fundamental techniques. Although each family of standards continues to evolve to support high- speed packet data transmission techniques, both standards continue to use similar fundamental methods while enhancing their performance and cost efficiencies to lower the cost of delivering mobile voice, data and multimedia services.