Patent ID: 7581020

Claim:
A method of addressing data for delivery to a wireless mobile device via an IP-based wireless network, comprising the steps of: originating data using a first IP address that is permanently associated with a single wireless mobile device and transmitting the addressed data to a push proxy server, wherein the first IP address is an IPV6 address; obtaining a network identifier for the wireless mobile device using the first IP address by performing an address lookup step at an address resolution component associated with the IP-based wireless network which matches the first IP address with a database of network identifiers, the network identifier uniquely identifying the wireless mobile device within the wireless network; using the network identifier of the wireless mobile device to obtain a second IP address that is temporarily associated with the wireless mobile device from the IP-based wireless network, wherein the second IP address is an IPV4 address; addressing the data received at the push proxy server using the second IP address; and transmitting the data from the push proxy server to the wireless mobile device using the second IP address via a tunnel created by the wireless network.