Method for address assignment in ad-hoc network
First Claim
1. A method in which a first node of an ad-hoc network requests an address assignment, said method comprising:
- the first node requesting an Internet gateway for an address assignment by sending a proxy node function request message if no advertisement message is received, and determining that there is no proxy node within a predetermined number of hops if no advertisement message is received;
being assigned with an address band from the Internet gateway; and
designating and using one of addresses of the address band,wherein the advertisement message is a message informing other nodes that the first node serves as a proxy node.
1 Assignment
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Accused Products
Abstract
In general, an Internet gateway assigns an address to a node of an ad-hoc network on receipt of request for an address assignment. However, a load exerted to the Internet gateway increases. Accordingly, one (proxy node) of the nodes of an ad-hoc network can serve as a proxy node to perform an address assignment function of the Internet gateway. That is, if a node of the ad-hoc node does not receive an advertisement message, it requests the Internet gateway for address assignment to perform the proxy node function. The node is assigned with at least two addresses from the Internet gateway, and then assigns the address to the requesting node. Accordingly, a load exerted to the Internet gateway can be reduced.
10 Citations
13 Claims
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1. A method in which a first node of an ad-hoc network requests an address assignment, said method comprising:
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the first node requesting an Internet gateway for an address assignment by sending a proxy node function request message if no advertisement message is received, and determining that there is no proxy node within a predetermined number of hops if no advertisement message is received; being assigned with an address band from the Internet gateway; and designating and using one of addresses of the address band, wherein the advertisement message is a message informing other nodes that the first node serves as a proxy node. - View Dependent Claims (2, 3, 4, 6, 7)
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5. The method as claimed in 4, wherein the at least two second addresses comprise at least one bit, and the first node transmits the second addresses to the requesting at least one node, the second addresses having a bit value different from a previously assigned bit value.
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8. A method in which an Internet gateway assigns an address to a node of an ad-hoc network, the method comprising:
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at the Internet gateway, receiving from a first node a proxy node function request message for assignment of a combined address comprising at least a first address and a second address, if no advertisement message is received by the first node, and determining that there is no proxy node within a predetermined number of hops if no advertisement message is received; and transmitting an address band comprising the first address for distinguishing the requesting first node and the second address to be arbitrarily assigned to the requesting first node, wherein the Internet gateway stores assignable first address bands without superimposing one on another, wherein the first node transmits an advertisement message including information that the first node serves as a proxy node to other nodes, when the first node receives the address band. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification