Patent ID: 6636738
Filing Date: 2003-10-21
Classification: H04W

Abstract:
A radio-communication-channel selection method used in a radio communication system in which a plurality of radio networks share a plurality of radio communication channels, for selecting a predetermined radio communication channel among the plurality of radio communication channels and for setting the predetermined radio communication channel as a radio communication channel of a new radio network, said selection method comprising:a determination step of determining whether an ID of the new radio network is received; a measurement step of detecting radio-signal intensity for a predetermined time for each of the plurality of radio communication channels and measuring a time when each radio communication channel is clear according to the detected radio-signal intensity and a predetermined value for each of the plurality of radio communication channels when it is determined in said determination step that the ID of the new radio network is not received; and a radio communication-channel selection step of selecting the predetermined radio communication channel to be used for the new radio network, according to the time when each radio communication channel is clear measured for each of the plurality of radio communication channels.