Patent ID: 9467924
Filing Date: 2016-10-11
CPC Classification: H04W

Claim Text:
1. A method for performing a TVBD (TV Band Device) group handover based on TV white space by an AP (Access Point) mounted on a mobile vehicle, the method comprising: transmitting multiple location information corresponding to a path along which the mobile vehicle travels to an available channel information providing server; receiving multiple geo-location information from the available channel information providing server as a reply to the transmitted multiple location information, wherein the multiple geo-location information includes available channel information relevant to the multiple location information; extracting operating channel set information so as to minimize a channel switching caused by a travel of the mobile vehicle, based on the multiple geo-location information; transmitting the extracted operating channel set information to a TVBD group; transmitting periodically the multiple location information to the available channel information providing server in order to update available channels depending on the travel of the mobile vehicle; and stopping the transmission of the multiple location information to the available channel information providing server when the mobile vehicle enters into an initial point of the path and the operating channel set information is stable for a predetermined period, wherein the initial point is detected by a location detection device detecting the location of the mobile vehicle.