BASE STATION, RADIO COMMUNICATION SYSTEM, BASE STATION CONTROL METHOD, RADIO COMMUNICATION METHOD, AND CONTROL PROGRAM
First Claim
1. A base station characterized by receiving a transmission signal from a mobile station to other base station, and starting transmission of a control signal with predetermined power depending on a reception condition of the transmission signal.
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Accused Products
Abstract
[Problems] Because it is not possible to reduce sufficiently the number of base stations that starts uselessly in spite of being in light traffic state, it is not possible to lower interference between adjacent cells and power consumption sufficiently.
[Measures] A base station receives a transmission signal from a mobile station to other base station, and starts transmission of a control signal with predetermined power depending on a reception condition of the transmission signal.
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Citations
32 Claims
- 1. A base station characterized by receiving a transmission signal from a mobile station to other base station, and starting transmission of a control signal with predetermined power depending on a reception condition of the transmission signal.
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15. A radio communications system comprising:
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a first base station; a second base station; and at least one mobile station which can communicate with said first base station and said second base station, wherein said second base station receives a transmission signal from said mobile station to said first base station, and starts transmission of a control signal with predetermined power depending on a reception condition of the transmission signal concerned. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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17. The radio communications system according to claim 16, wherein
said decision unit measures received power of the transmission signal from said mobile station to said first base station in upstream band and compares the received power with a predetermined threshold value. -
18. The radio communications system according to claim 16, wherein
said decision unit detects an outgoing call of said mobile station to said first base station. -
19. The radio communications system according to claim 16, wherein
said decision unit judges whether the transmission signal of said mobile station is included in signals which are received by said second base station using radio resources allocation information that said first base station is using. -
20. The radio communications system according to claim 16, wherein
said second base station further includes reception unit which receives predetermined information concerning said first base station and said decision unit controls decision processing based on said predetermined information. -
21. The radio communications system according to claim 20, wherein
said decision unit changes decision criteria in the decision processing based on said predetermined information. -
22. The radio communications system according to claim 20, wherein
said decision unit changes at least one of a period to carry out the decision processing and a cycle of the period, based on said predetermined information.
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23. A control method of a base station comprising:
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receiving a transmission signal from a mobile station to other base station; and starting transmission of a control signal with predetermined power depending on a reception condition of the transmission signal. - View Dependent Claims (24, 25, 26)
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27. A radio communications method of a radio communications system including a first base station, a second base station, and at least one of mobile station which can communicate with said first base station and said second base station, comprising:
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receiving a transmission signal from said mobile station to said first base station in said second base station; and starting transmission of a control signal with predetermined power depending on a reception condition of the transmission signal. - View Dependent Claims (28, 29, 30)
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31. A control program characterized by making a base station execute processing to receive a transmission signal from a mobile station to other base station, and to start transmission of a control signal with predetermined power depending on a reception condition of the transmission signal.
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32. A mobile station which is able to communicate with a first base station and a second base station, characterized by transmitting a transmission signal to said first base station, and receiving a control signal transmitted from said second base station with predetermined power depending on a reception condition of the transmission signal in said second base station.
Specification