Patent ID: 7646758

Claim:
A method of coordinating adjacent channel transmissions on multiple-radio nodes comprising: defining a Maximum Channel Occupancy Duration (MCOD) limit for a length of an overall transmit period; maintaining at a first node a set of timers (NNAV) for each neighbor node of said first node, each of said NNAV including a first timer (CTSNNAV) maintained for the neighbor node which, if set, indicates the maximum duration of a transmission to said neighbor node and a second timer (RTSNNAV) for a neighbor node which, if set, indicates how long the neighbor node is expected to transmit and is thus prevented from authorizing a transmission longer than the value of CTSNAV; and wherein a node having a RTSNNAV value equal to zero and having a CTSNNAV value greater than zero defines a reservation duration value for a CC-RTS sent to said neighbor node to be the same as the value of the CTSNNAV, and wherein a node having a RTSNNAV value equal to zero and having a CTSNNAV vale equal to zero defines a reservation duration value for a CC-RTS not to exceed MCOD and when a CC-CTS is transmitted by the neighbor node, the CTSNNAV is set to MCOD.