WiMAX-EVDO Interworking Using Mobile IP

WiMAX, a fourth-generation wireless-access technology, has made significant progress both in the standard forums and with wireless network carriers. To ensure service continuity to a legacy end user, it is important for a WiMAX mobile device to interwork with existing third generation access networks before it is uniquely and ubiquitously deployed. This paper addresses this issue and shows how interworking can be achieved with EVDO wireless-access technology, using mobile IP in a dual mode terminal. The authors present a network architecture solution and detailed call flows.