Patent ID: 7773998

Claim:
A wireless communication apparatus, comprising: a transmitting/receiving unit configured to communicate data by employing a plurality of frequency channels derived by dividing predetermined frequency ranges; a storage unit configured to store at least one updatable index indicative of a communication condition in each of the frequency channels; an evaluation reference updating unit configured to update a reference of a communication quality based upon a plurality of indexes stored in said storage unit; and a controller configured to select at least one frequency channel from said plurality of frequency channels to communicate data based upon said reference, and configured to instruct said transmitting/receiving unit to switch to said at least one selected frequency channel, wherein the data includes at least one of a first packet that does not require a resend function and a second packet that requires the resend function, said controller is further configured to characterize the at least one of the first packet and the second packet which is transmitted/received via the at least one selected frequency channel, said transmitting/receiving unit is configured to instruct said evaluation reference updating unit to update the reference to a first reference when the first packet is transmitted and to a second reference when the second packet is transmitted, the first reference being higher than the second reference.