| US 7,548,525 B2 | ||
| System and method for providing handover of a mobile IP terminal in a wireless network | ||
| Kyung-Joo Suh, Suwon-si (Korea, Republic of); Young-Jun Park, Seoul (Korea, Republic of); Jae-Kwon Oh, Seoul (Korea, Republic of); Eun-Hui Bae, Seoul (Korea, Republic of); Hyeon-Woo Lee, Suwon-si (Korea, Republic of); Su-Yeul Lee, Suwon-si (Korea, Republic of); Young-Joo Suh, Pohang-si (Korea, Republic of); Woo-Jae Kim, Pohang-si (Korea, Republic of); and Dong-Hee Kwon, Pohang-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd, (Korea, Republic of) | ||
| Filed on Oct. 18, 2004, as Appl. No. 10/967,574. | ||
| Claims priority of application No. 10-2003-0072800 (KR), filed on Oct. 18, 2003; and application No. 10-2003-0073201 (KR), filed on Oct. 20, 2003. | ||
| Prior Publication US 2005/0163080 A1, Jul. 28, 2005 | ||
| Int. Cl. H04Q 7/00 (2006.01) | ||
| U.S. Cl. 370—331 [370/401; 370/332; 370/328; 455/440] | 13 Claims |
| 1. A system for providing handover of a mobile node in a wireless network supporting a Mobile IP (Internet Protocol), comprising:
a mobile node for sending a request for neighbor access router information to a first access router currently communicating
with the mobile node, and selecting, if the neighbor access router information is received, a second access router serving
as a target access router using the received neighbor access router information,
wherein the first access router exchanges access router information with a neighbor access router, provides neighbor access
router information to the mobile node upon receiving the neighbor access router information request from the mobile node,
and redirects data to be delivered to the mobile node to the second access router to which the mobile node will be handed
over, and the second access router forwards data to be delivered to the mobile node, received from the first access router,
to the corresponding mobile node;
wherein the first access router delivers the neighbor access router information to the mobile node upon receiving the neighbor
access router information request from the mobile node, and redirects data to be delivered to the mobile node to the second
access router to which the mobile node will be handed over, if a fast binding update message is received from the mobile node;
and
wherein the second access router forwards data to be delivered to the mobile node to the corresponding mobile mode, if the
data is received from the first access router.
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