Patent ID: 7430400
Filing Date: 2008-09-30
Classification: A63F,H04W

Abstract:
1. A method of collaboration between a WiFi radio and a Adaptive Frequency Hopping (AFH) radio that share frequency spectrum, comprising: providing a signaling path between said WiFi radio and said AFH radio; providing, over the signaling path, first information to said WiFi radio about frequency spectrum use by said AFH radio; providing, over the signaling path, second information to said AFH radio about a channel in use by said WiFi radio; asserting a collaboration signal along said signaling path when said AFH radio communicates with a wireless accessory, said collaboration signal containing a warning period of approximately 30 microseconds to approximately 500 microseconds and configured to allow said WiFi radio to use at least a portion of the spectrum of the AFH radio and sharable by the WiFi radio for a predetermined amount of time; completing transmission, if any, by said WiFi radio within the warning period and over the at least a portion of the frequency spectrum of the AFH radio; and aborting transmissions of said WiFi radio.