Patent ID: 8705485

Claim:
A wireless communication system comprising: a first base station apparatus that includes a wireless unit that allows all of terminal apparatuses located within an entire area of a cell of the first base station apparatus to perform transmission or reception using a first frequency at a first power level at a first time slot, and allows only terminal apparatuses located within an area that is a part of the entire area of the cell of the first base station apparatus and surrounds the first base station apparatus to perform transmission or reception using a second frequency and a third frequency at a second power level that is lower than the first power level at the first time slot; and allows only terminal apparatuses located within an area that is a part of the entire area of the cell of the first base station apparatus and surrounds the first base station apparatus to perform transmission or reception using the first, second, and third frequencies at the first power level at a second time slot; and a second base station apparatus that includes a wireless unit that allows all of terminal apparatuses located within an entire area of a cell of the second base station apparatus to perform transmission or reception using the second frequency at a third power level at the first time slot, and allows only terminal apparatuses located within an area that is a part of the entire area of the cell of the second base station apparatus and surrounds the second base station apparatus to perform transmission or reception using the first frequency and the third frequency at a fourth power level that is lower than the third power level at the first time slot, and allows only terminal apparatuses located within an area that is a part of the entire area of the cell of the second base station apparatus and surrounds the second base station apparatus to perform transmission or reception using the first, second, and third frequencies at the first power level at the second time slot.