Patent ID: 8909241
Filing Date: 2014-12-09
Classification: H04W

Abstract:
1. A wireless device in a second wireless system using a second frequency band overlapped with a first frequency band allocated for a first wireless system, the second wireless system having lower priority to use the first frequency band than the first wireless system, the wireless device comprising: a location receiving unit configured to receive location information having a place name and indicating a location of the wireless device; a geographic coordinate acquiring unit configured to acquire geographic coordinates including latitude and longitude based on the location information; a frequency setting unit configured to access a frequency server storing a frequency assigned to a wireless device of the first wireless system and corresponding geographic coordinates thereof including latitude and longitude by using the geographic coordinates acquired by the geographic coordinate acquiring unit, so as to acquire at least one of a frequency not assigned to the wireless device of the first wireless system and a frequency having low risk of interfering with the wireless device of the first wireless system in the second frequency band overlapped with the first frequency band, to set the frequency as a transmission/reception frequency; and a falseness judging unit configured to judge an authenticity of the location information received by the location receiving unit, by accessing a network provider connected to the wireless device to serve to perform access to the frequency server.