Radio station apparatus, radio resource control method, recording medium storing radio station control program, and radio communication system

A radio resource control method used by a base station apparatus that performs radio communication with at least one first mobile station, the radio resource control method comprising:

• measuring reception quality of an uplink signal transmitted from at least one second mobile station that is different from said at least one first mobile station at an installation place of the base station apparatus and communicates with a first base station different from the base station apparatus;
• measuring a downlink signal transmitted from the first base station;
• calculating an estimated transmission power of the base station by using the information of the downlink signal transmitted from the first base station;
• calculating an estimated loss value relating to a propagation loss between the second mobile station and the base station apparatus by using the reception quality and the estimated transmission power;
• and
• determining a radio parameter that affects transmission power of radio communication between the base station apparatus and the first mobile station based on the estimated loss value.

A non-transitory recording medium storing a radio station control program to cause a computer to execute control processing relating to a base station apparatus that performs radio communication with at least one first mobile station and communicates with a first base station different from the base station apparatus, the control processing comprising:

• a process (a) of obtaining a measured value obtained by measuring reception quality of an uplink signal transmitted from at least one second mobile station that is different from said at least one first mobile station at an installation place of the base station apparatus and obtaining a measured value obtained by measuring a downlink signal transmitted from the first base station;
• a process (b) of calculating an estimated transmission power of the base station by using the information of the downlink signal transmitted from the first base station and calculating an estimated loss value relating to a propagation loss between the second mobile station and the base station apparatus by using the reception quality and the estimated transmission power;
• and
• a process (c) of determining a radio parameter that affects transmission power of radio communication between the base station apparatus and the first mobile station based on the estimated loss value.

A radio communication system comprising:

• a base station that performs radio communication with at least one first mobile station and communicates with a first base station different from the base station apparatus;
• a first measurement unit adapted to measure reception quality of an uplink signal transmitted from at least one second mobile station that is different from said at least one first mobile station at an installation place of the base station;
• a second measurement unit adapted to measure a downlink signal transmitted from the first base station;
• a first calculation unit adapted to calculate an estimated transmission power of the base station by using the information of the downlink signal transmitted from the first base station;
• a second calculation unit adapted to calculate an estimated loss value relating to a propagation loss between the second mobile station and the base station by using the reception quality and the estimated transmission power;
• and
• a determination unit adapted to determine a radio parameter that affects transmission power of radio communication between the base station and the first mobile station based on the estimated loss value.