| 摘要 |
<p>A route updating method in mobile communication system includes: after a mobile equipment in idle condition re-selects network, it transmits a register request message to the serving node of new network side; after the serving node of the new network side receives the register request message, it acquires mobile security league information from the serving node of old network side or HSS of the mobile equipment; the serving node of the new network side transmits a mobile IP register request message to home agent of the mobile equipment, the home agent processes the mobile IP register request message; the serving node of new network side transmits a register accept acknowledge message to the mobile equipment. A route updating system includes: a mobile equipment, a serving node of new network side, a serving node of old network side, a HSS and a home agent. By using the present system and method, a UE without mobile IP function in idle condition could use mobile IP to perform route updating when the roaming across systems happens, without adding radio interface signaling and the flow complexity.</p> |
