Patent ID: 7711027

Claim:
A wireless communication control method for wireless communication devices comprising: employing Adaptive Frequency Hopping being configured to switch among a plurality of channels except a channel subject to interference by interference waves in a predetermined frequency; creating a hopping pattern using available channels; setting channels being used to communicate based on said hopping pattern; processing received signals on said channels; assessing reception conditions of channels said by both a first assessment to detect a group of abnormal conditions in communication caused by interference waves, and a second assessment to detect an abnormal condition in communication caused by mutual interference with constant or intermittent interference waves from said group of abnormal conditions, wherein said first assessment detects said group of abnormal conditions based on reception error information and Receive Signal Strength Indicator, and wherein said first assessment assesses that an interference by interference waves exists if both said reception error information is detected and said Receive Signal Strength Indicator is larger than a predetermined set value, and wherein said first assessment assesses that an interference by interference waves does not exist if at least one of said reception error information is not detected and said Receive Signal Strength Indicator is not larger than the predetermined value, and wherein said second assessment sets a predetermined rating for an interference condition in a channel, and downgrades said rating by one level if it is assessed that said channel faces said mutual interference, and upgrades said rating by one level if it is not assessed that said channel faces said mutual interference, and detects an interference by constant or intermittent interference waves by classifying said reception conditions of channels based on said rating in a predetermined time.