Patent ID: 9191826
Filing Date: 2015-11-17
Classification: H04W

Abstract:
1. A method of receiving available channel information on K (K≧2) numbers of locations by a first type station (STA) from a second type STA in a wireless communication system, comprising: receiving a channel availability query (CAQ) response message, wherein the CAQ response message includes a field of the numbers (K) of the locations and K numbers of available channel list fields configured with information on an available channel list for each of the K numbers of locations, from the second type STA; performing a communication in a white space using an available channel included in an available channel list for a single location among the K numbers of locations, wherein the K numbers of available channel list fields are configured with a Map ID field and a field of N (N≧1) numbers of available channels are repeated K times; and receiving a contact verification signal (CVS) including one or more Map ID fields from the second type STA by the first type STA, wherein, if the first type STA receives the CVS within a predetermined time interval (CVSTimeInterval), an available channel list corresponding to a Map ID included in the received CVS is used only by the first type STA among available channel lists included in the CAQ response message.