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,...http://www.google.de/patents/US20050063349?utm_source=gb-gplus-sharePatent US20050063349 - Method for supporting a plurality of subscribers operating on different frequency bands using a single access point
