Patent ID: 7190957

Claim:
A method of connecting a mobile station with a base station via a radio link in a mobile communication system including a first base station capable of directional beam signal transmission and reception and a second base station incapable of directional beam signal transmission and reception, the method comprising: setting a first connection threshold value for connecting the mobile station with the first base station being capable of a direction beam, and a second connection threshold value different from the first connection threshold value for connecting the mobile station with the second base station incapable of a directional beam, and setting a first disconnection threshold value for disconnecting the mobile station with the first base station, and a second disconnection threshold value different from the first disconnection threshold value for disconnecting the mobile station with the second base station, so as to preferentially connect the mobile station to the first base station capable of a directional beam rather than to the second base station incapable of a directional beam.