Resource reservation system and method in wireless mobile environments
First Claim
1. A resource reservation system for mobile network environments having a mobile node, a router for intermediating communications between the mobile node in a first network and a correspondent node in a second network, and a plurality of neighboring routers geographically adjacent to the router, the system comprising:
- a manager for sending a path request message for establishing a new path to the neighboring routers if a fast resource reservation and release (FREE) initiation message is received from the mobile node, if the mobile node as a receiver performs a handoff, wherein, if the mobile node arrives in a communication range of any of the neighboring routers, the manager establishes a new path between the mobile node and the manager, through the neighboring router corresponding to the communication range, according to the sent path request message.
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Accused Products
Abstract
A resource reservation system for mobile network environments having a mobile node, routers for intermediating communications between the mobile node and a correspondent node belonging to another network, and neighboring routers geographically adjacent to the router, includes a manager for sending a path request message for establishing a new path to the neighboring routers if a fast resource reservation and release (FREE) initiation message is received from the mobile node if the mobile node as a receiver performs a handoff. If the mobile node enters a communication range of any of the neighboring routers, the manager establishes a new path between the mobile node and the manager through the neighboring router for the communication range according to the sent path request message. Accordingly, the manager performs establishment of a new RSVP path and release of a previous RSVP path at the same time to prevent double resource reservation occasions.
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Citations
34 Claims
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1. A resource reservation system for mobile network environments having a mobile node, a router for intermediating communications between the mobile node in a first network and a correspondent node in a second network, and a plurality of neighboring routers geographically adjacent to the router, the system comprising:
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a manager for sending a path request message for establishing a new path to the neighboring routers if a fast resource reservation and release (FREE) initiation message is received from the mobile node, if the mobile node as a receiver performs a handoff, wherein, if the mobile node arrives in a communication range of any of the neighboring routers, the manager establishes a new path between the mobile node and the manager, through the neighboring router corresponding to the communication range, according to the sent path request message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A resource reservation method for mobile network environments having a mobile node, a router for intermediating communications between the mobile node in a first network and a correspondent node in a second network, and a plurality of neighboring routers geographically adjacent to the router, comprising:
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sending a fast resource reservation and release (FREE) initiation message from the mobile node to a manager managing resource reservations and releases, if the mobile node as a receiver performs a handoff;
sending from the manager to the neighboring routers a path request message for establishing a new path in response to the FREE initiation message; and
establishing by the manager, if the mobile node arrives in a communication range of any of the neighboring routers, the new path between the mobile node and the manager, through the neighboring router corresponding to the communication range, according to the sent path request message. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A resource reservation system for mobile network environments having a mobile node, a router for intermediating communications between the mobile node in a first network and a correspondent node in a second network, and a plurality of neighboring routers geographically adjacent to the router, comprising a manager for sending a fast resource reservation and release (FREE) initiation message to the neighboring routers, if the mobile node as a transmitter performs a handoff and the FREE initiation message is received at the manager from the mobile node,
wherein the neighboring routers send a path request message to the manager in response to the sent FREE initiation message, and, if the mobile node arrives in a communication range of any of the neighboring routers, the manager establishes a new path between the mobile node and the manager, through the neighboring router corresponding to the communication range, according to the sent path request message.
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26. A resource reservation method for mobile network environments having a mobile node, a router for intermediating communications between the mobile node in a first network and a correspondent node in a second network, and a plurality of neighboring routers geographically adjacent to the router, comprising:
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sending a fast resource reservation and release (FREE) initiation message from the mobile node to the neighboring routers through the router and a manager managing resource reservations and releases, if the mobile node as a transmitter performs a handoff;
sending from the neighboring routers to the manager a path request message for establishing a new path in response to the sent FREE initiation message; and
establishing by the manager, if the mobile node arrives in a communication range of any of the neighboring routers, the new path between the mobile node and the manager, through the neighboring router corresponding to the communication range, according to the sent path request message. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification