Patent ID: 9107216
Filing Date: 2015-08-11
Classification: H01Q,H04B,H04W

Abstract:
1. A base station that communicates with a communication terminal using a plurality of antennas, the base station comprising: a communication unit including a plurality of antennas, for controlling, in transmitting a signal using the plurality of antennas, the transmission directivity of the plurality of antennas based on a known signal from the communication terminal; and a radio resource allocation unit for allocating, to the communication terminal, an uplink frequency band for use in transmission of the known signal from a plurality of unit frequency bands lined in a frequency direction, wherein the radio resource allocation unit determines the unit frequency band to be used as the uplink frequency band by the communication terminal in a communication frame based on an elapsed time since the time when the unit frequency band was used as the uplink frequency band for the last time before being used in the communication frame.