H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 3/66 (2006.01) H04Q 7/24 (2006.01) H04Q 7/38 (2006.01) H04Q 7/22 (2006.01)
Patent
CA 2287613
A route optimization technique in a GPRS network includes establishing a gateway GPRS support node in a visiting public land mobile network in which a roaming mobile station is currently located. Specifically, a tunnel is formed between the gateway GPRS support node and a serving GPRS support node to which the mobile station is in direct communication over a radio link. In this manner, external corresponding hosts may route packets to the gateway GPRS support node, rather than the GPRS support node in the mobile station's home public mobile network, as is done in conventional GPRS networks. Advantageously, a shorter path is established for transfer of packets between a mobile station and a corresponding host. A similar route optimization technique is provided in a CDPD network, wherein a home mobile data- intermediate system node (local HMD-IS) in the foreign (visiting) network serves as a gateway node to the roaming mobile-end system.
Budka Kenneth Carl
Chuah Mooi Choo
Yue On-Ching
Kirby Eades Gale Baker
Lucent Technologies Inc.
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