Large cell base station and communication control method

摘要

When the provided large cell base station (100) is to allocate a resource block to a radio terminal (200) connected to said large cell base station (100), band-use restriction information that indicates use restrictions on the frequency band corresponding to the aforementioned resource block is transmitted to a small cell base station (300). The large cell base station (100) then allocates the resource block to the radio terminal (200) after an amount of time corresponding to the signal transmission delay from the large cell base station (100) to the small cell base station (300) has passed since the aforementioned transmission.

主权项

1. A large cell base station to which a radio terminal is connected, the large cell base station configured to form a large cell in which a small cell base station configured to form a small cell smaller than the large cell is installed, comprising:
an acquisition unit configured to acquire a transmission delay time of a signal from the large cell base station to the small cell base station; a determination unit configured to determine a radio resource to be allocated to the radio terminal; a band use restriction information transmitter configured to transmit band use restriction information to the small cell base station, the band use restriction information instructing use restriction of a frequency band corresponding to the radio resource determined by the determination unit; and an allocation unit configured to allocate the radio resource determined by the determination unit to the radio terminal after the transmission delay time has elapsed after the band use restriction information is transmitted, said transmission delay time being measured after transmitting the band use restriction information.