Patent ID: 8964677
Filing Date: 2015-02-24
Classification: H04W

Abstract:
1. A method for allowing a first station (STA) capable of being operated in a plurality of frequency bands to perform a fast session transfer (FST) to a whitespace band, the method comprising: transmitting, by the first station (STA), a multi-band element including information used as an FST request message to specify a desired band to which the first STA will move through the FST, to a second station (STA); if the desired band achieved through the FST is a whitespace band, allowing the multi-band element to further include specific whitespace band information for making the second station (STA) obtain available channel information not used by a licensed device in the whitespace band, and receiving a response message to the FST request message from the second station (STA); and if a target channel contained in the desired band achieved through the FST is specified as an available channel of the whitespace band, performing the FST to the target channel.