Base station apparatus, control method of base station apparatus, communication system, and storage medium storing program

摘要

A base station 1 includes a radio communication unit 11 and a frequency channel control unit 15. The radio communication unit 11 is capable of forming a primary cell and a secondary cell, and transmitting a physical channel for data transmission (HS-PDSCH) in each of these two cells. Further, the frequency channel control unit 15 determines a frequency channel available to the secondary cell based on the load status of a nearby cell formed by a nearby base station 7. In this way, the interference to the nearby cell caused by the base station 1 is suppressed.

主权项

1. A base station apparatus comprising:
a radio communication unit being capable of forming a first cell and a second cell that is dependently formed under condition of the formation of the first cell by using a frequency band different from that of the first cell, and transmitting a physical channel for data transmission in each of the first and second cells; and a control unit being adapted to obtain at least one of measurement information relating to a load status of a nearby cell formed by a nearby base station and restriction information that is generated according to the load status of the nearby cell and indicates a use restriction of a frequency band used in the nearby cell, and determine whether to exclude the frequency band used in the nearby cell from frequency channel candidates that is allowed to be used in the second cell based on at least one of the measurement information and the restriction information, the measurement information including at least one of first measurement information generated by the nearby base station and second measurement information generated by the base station apparatus based on a reception result of a radio signal transmitted from the nearby base station.