| US 7,492,733 B2 | ||
| Method of transmitting packets in a mobile 3G network system | ||
| Hassan Hagirahim, Long Branch, N.J. (US); and Francis Waldman, Fair Haven, N.J. (US) | ||
| Assigned to Alcatel-Lucent USA Inc., Murray Hill, N.J. (US) | ||
| Filed on Apr. 24, 2001, as Appl. No. 9/841,541. | ||
| Prior Publication US 2002/0154642 A1, Oct. 24, 2002 | ||
| Int. Cl. H04L 12/56 (2006.01) | ||
| U.S. Cl. 370—328 [370/338; 370/401] | 19 Claims |
| 1. A method of transmitting a packet received at a Foreign Agent associated with a Packet Data Service Node where the packet
has a source IP address of a mobile station that points to a geographically remote Home Agent and a destination IP address
comprising the steps of:
caching IP addresses in memory;
comparing the destination IP address of the received packet with the IP addresses in memory, and if no match is found, querying
a Policy Server for a match; and
forwarding the received packet with the IP address of the Foreign Agent associated with the Packet Data Service Node as the
source IP address when the destination address of the received packet matches the IP address in memory or Policy Server.
|