The Design And Implement Of Wireless Fixed Telephone

With the rapid development of communication technology today, more and more communications electronic products are used communication capabilities of WCDMA.Traditional 2G wireless fixed telephone to the current technical development of 3G wireless fixed telephone, has gradually attracted some phone manufacturers and telecom operators attention. Due to the high cost of hardware WCMDA communication module, the problem of how to reduce development costs and the cost of the phone's hardware products is also some manufacturers which are more concerned about traditional telephones.Wireless fixed phones provide voice and data services by WCMDA communication module, portable, versatile, easy to operate, easy to install, no wiring and widely used and so on.Wireless fixed telephone not only as an ordinary phone to use voice, SMS and other basic functions, but also can be used MODEM dial-up use. With the development of embedded technology, wireless fixed telephone performance is also increasing. Wireless fixed telephone applications more widely, for example for use on public transport, as public telephone use in rural and remote mountainous areas is not easy wiring, the application beside the highway as emergency communications telephone. With the widespread use of wireless fixed telephone,which brings convenience to people's communications, so the market prospect of wireless fixed telephony is still relatively uncertain.This paper analyzes the current situation of the development of domestic and foreign fixed wireless phones and the need to develop WCDMA wireless fixed telephone system.Specific study of wireless fixed telephone several common solutions based on customer needs eventually choose a single module solution. And wireless fixed telephone system hardware design block diagram and peripheral circuit design done in detail. A detailed analysis of the needs of fixed wireless phones, wireless fixed telephone set up the software architecture based WCMDA communication module; according to customer demand for products, the completion of the system design of products, voice sub-module design, module design submessaging, address book management Call sub-module design and records management sub-module design.Last, we record the results of hardware testing and software testing.Embedded LUA technology and WCDMA technology combined to achieve a wireless fixed telephone system. It gives full play to the good voice call quality WCDMA technology,the data transmission speed and embedded LUA technology easy to develop, easy expansion,high efficiency. We use SIM5320 communication module embedded LUA development platform to design the wireless fixed phone. It changes more flexible and convenient,effectively reducing hardware costs and design costs. Therefore, the promotion and application of WCDMA wireless fixed telephone are of importance.