Patent ID: 7826850

Claim:
A frequency band allocation device comprising: a frequency band selection unit for selecting usable frequency bands from a dedicated frequency band, a registered frequency band and an unlicensed frequency band; and a frequency band allocation unit for allocating a frequency band out of the selected usable frequency bands to an uplink and downlink, so as to satisfy user required QoS, wherein plural utilizable frequency bands are allocated in the case that no one band satisfies the user required QoS; and when the plural utilizable frequency bands include both one broadband high frequency and one narrow band low frequency utilizable at a same time, the frequency band allocation unit allocates all of an uplink control channel, a downlink control channel and an uplink data channel to said one narrow band low frequency but not to the broadband high frequency, and allocates a downlink data channel to said one broadband high frequency but not to the narrow band low frequency, and wherein the uplink control channel and the downlink control channel are allocated to the same frequency band.