Patent ID: 8711808

Claim:
A method for switching channels in a wireless communication network comprising at least one access point and a plurality clients, wherein the communication network utilizes one of a plurality of possible channels as a secondary user for data communication in a predetermined frequency range, the method comprising: performing data communication between the at least one access point and the plurality of clients over a first transmit/receive interface of the at least one access point on a first channel of the plurality of possible channels; checking, a second transmit/receive interface of the at least one access point, in parallel to the data communication via the first transmit/receive interface, a second transmit/receive interface of the at least one access point checking the plurality of possible channels to determine which of the plurality of channels are free channels which are unused by any primary users; performing a channel switch from the first channel of the plurality of possible channels to one of the free channels if a prioritized use of the first channel by a primary user is established by the at least one access point of the communication network, the channel switch being performed such that operative data communication is transferred to the second transmit/receive interface while scanning of the free channels is assumed by the first transmit/receive interface.