The present invention allows a single access point ("AP"; 100) to support
a plurality of devices (102, 104) operating on different frequency bands.
During a first period of time, the AP initiates a contention free period
at a first frequency. The AP switches from the first frequency to a
second frequency, and communicates with devices operating at the second
frequency. Periodically during the first period of time, the AP
temporarily ceases communication with devices operating at the second
frequency to initiate a contention free period at the second frequency,
switch from the second frequency to the first frequency, initiate another
contention free period at the first frequency, and switch from the first
frequency back to the second frequency.