The Study Of CDMA 1X Wireless Network

CDMA is the English abbreviation of Code Division Multiple Access.It is one brand-new and mature wireless communication technology based on diffuse commuication, which is one embranchment of the digital techenology. With the found of CDMA 1x network with the transmission velocity of 153. 6kbp fast, wireless data operation get wider development space than before. China Unicom set up the brand of wireless data operation based on CDMA IX. It is based on BREW and JAVA, can download all kinds of applicationsoftware to make the mobile phone updata by the air, make the mobile forever individuality and modern.With the development of three nets amalgamation and IP net becoming base net, Internet begin to progress to the wireless mobile as well as to the wide brand. Mobile IP is the deep amalgamation of the mobile technology and the IP. It in deed carry out the syncretization of the voice and data. The goal of mobile IP is to synthesize the wireless voice and wireless data together and transmit. This platform is IP protocol.BREW is one operation platform of wireless terminal applications. It includes BREW BSD facing the telecommunication operator, BREW open flatform facing the terminal manufacturer, BREW SDK facing the application developer, and BREW download for the user. BREW SDK is based on C/C++ language, and can analog the real run instance in the PC.