Radio communication system, high-power base station, low-power base station, and communication control method
AssigneeKYOCERA Corporation
InventorsKazutaka Nakamura, Kenta Okino, Taku Nakayama
Life of this patent
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Abstract
A radio communication system 1 includes a pico-cell base station PeNB in stalled in a communication area of a macro-cell base station MeNB, having lower transmission power than the macro-cell base station MeNB, and expanded in its coverage. The macro-cell base station MeNB determines a degree of expanding the coverage of the pico-cell base station PeNB, according to an amount of usable PDSCH resources of the macro-cell base station MeNB.
Claims11
A radio communication system comprising:
- a high-power base station;
- and
- a low-power base station installed in a communication area of the high-power base station, having lower transmission power than the high-power base station, and expanded in its coverage, wherein
- the radio communication system further comprising a determination unit configured to determine a degree of expanding the coverage of the low-power base station, according to an amount of usable resources which are radio resources usable as a particular downlink channel by the high-power base station.
A high-power base station comprising:
- a determination unit configured to determine a degree of expanding coverage of a low-power base station according to an amount of usable resources which are radio resources usable as a particular downlink channel by the high-power base station, the low-power base station installed in a communication area of the high-power base station and having lower transmission power than the high-power base station;
- and
- a transmitter configured to transmit, to the low-power base station, information indicating the expansion degree determined by the determination unit.
A low-power base station installed in a communication area of a high-power base station and having lower transmission power than the high-power base station, comprising:
- a determination unit configured to determine a degree of expanding coverage of the low-power base station according to an amount of usable resources which are radio resources usable as a particular downlink channel by the high-power base station.
A communication control method comprising:
- determining a degree of expanding coverage of a low-power base station according to an amount of usable resources which are radio resources usable as a particular downlink channel by a high-power base station, wherein
- the low-power base station installed in a communication area of the high-power base station and having lower transmission power than the high-power base station.
A communication control method comprising:
- causing a high-power base station to transmit, to a low-power base station, information indicating an amount of usable resources which are radio resources usable as a particular downlink channel by the high-power base station, the low-power base station installed in a communication area of the high-power base station and having lower transmission power than the high-power base station;
- causing the low-power base station to determine a degree of expanding coverage of the low-power base station based on the information indicating the amount of usable resources received from the high-power base station, and to transmit, to the high-power base station, information indicating the determined degree of expanding the coverage of the low-power base station;
- and
- causing the high-power base station to receive the information indicating the degree of expanding the coverage of the low-power base station, which is transmitted from the low-power base station.
Dependencies are inferred from the claim text.