Patent ID: 6947431
Filing Date: 2005-09-20
Classification: H04L,H04W

Abstract:
1. A gateway for transmitting data packets between a wireless network and a second network, the gateway comprising: a database comprising data associating at least one wireless terminal with at least one destination address, said data including for each of said at least one wireless terminal, at least one wireless terminal identifier, at least one source address of said at least one wireless terminal according to a protocol of said second network, and at least one destination address on said second network; a database manager collecting information from said data packets received from said at least one wireless terminal in order to build up and maintain said database; a header builder receiving data packets from the wireless network without a header suitable for said protocol of said second network and building said suitable header based on said data and information contained within said data packets received, and outputting data packets with said suitable header for transmission on said second network; and a relay module receiving data packets from said second network addressing said at least one wireless terminal according to an address associated with said second network, said relay module retransmitting said data packets from said second network to said at least one wireless terminal using an address obtained from said database in a format of a protocol of said wireless network.