Patent ID: 8259742

Claim:
A hybrid channel assignment method comprising the steps of: negotiating among routers to select one router to act as a central server; collecting, at the selected router, information on an entire network transmitted from the other routers, and assigning channels based upon the information on the entire network; setting, by the selected router with reference to the information transmitted from the other routers, a channel that is changed by distributed channel assignment as a reallocable link and a channel that is only changed by centralized channel assignment as a non-reallocable link; reassigning channels of respective routers based upon dynamically-changing traffic characteristics; and setting a non-reallocable link when an amount of traffic exceeding a first reference value is conveyed; setting a non-reallocable link when a number of channels generated after centralized channel assignment is greater than a second reference value; and setting a non-reallocable link when a number of channels terminated after centralized channel assignment is greater than a third reference value, whereby the selected router enables a hybrid centralized and distributed channel assignment.