Implementation of seamless roaming service in hybrid network

We describe the roaming service with mobile IP between public WLAN and cdma2000 1/spl times/ Ev-Do design, and implemented. In terms of network configuration, the coverage of public WLAN network is overlapped with that of Ev-Do network. In this configuration, mobile terminal will decide the access system among the available systems. We propose the roaming method based on measuring the power of WLAN signal in hybrid network environments, and...