Patent ID: 8244267
Filing Date: 2012-08-14
Classification: H04W

Abstract:
1. A communication method in a multiband mobile communication system having a radio communication terminal and a plurality of radio base stations capable of using a plurality of frequency bands, comprising the stops of: transmitting, at the radio base station, first broadcast control information through a broadcast channel common to a plurality of radio communication terminals, the first broadcast control information being used for communication control; transmitting, at the radio base station, dedicated control information to a specific radio communication terminal with use of a directional beam, the dedicated control information being used for communication control; transmitting, at the radio base station, second broadcast control information to a certain radio communication terminal with use of a directional beam, the second broadcast control information indicating allocation of the dedicated control information; determining, at the radio communication terminal, whether or not the first broadcast control information can be received from the radio base stations; determining, at the radio communication terminal, whether or not the second broadcast control information can be received from the radio base stations in ascending order of used frequency bands, when it is determined that the first broadcast control information cannot be received; and selecting, at the radio communication terminal, a radio base station, which is determined to be a radio base station from so which the second broadcast control information ran be received, as a connection destination radio base station, and communicating, at the radio communication terminal, with the selected radio base station.