Patent ID: 7925297

Claim:
A method comprising: maintaining an updated end of free time indication for a first wireless transceiver within a multiple radio wireless device, said end of free time indication being indicative of a point in time when said first wireless transceiver is scheduled to cease being inactive; determining that a second wireless transceiver within said multiple radio wireless device is ready to communicate; and calculating, in response to determining, a transmission opportunity (TXOP) duration L for said second wireless transceiver using said end of free time indication of said first wireless transceiver, wherein L is calculated using the equation: L =min( E−T−d, L MAX ) where E is the updated end of free time indication for said first wireless transceiver, T is the current time, d is a guard interval, L MAX is the maximum TXOP duration for said second wireless transceiver, L is the calculated TXOP duration for said second wireless transceiver, and min(a,b) is the function that selects the lowest of listed elements a and b.