Wireless base station, control device, control method, program, and wireless communication system

Abstract

In the present invention, during execution of control for reducing the effect of interference in a wireless communication system, unnecessary execution of the aforementioned control is suppressed. This wireless communication system (100) includes one or more wireless base stations (1). The wireless communication system (100) comprises an interference-sensing means (23) for sensing the occurrence of interference in the wireless communication system (100), an interference analysis means (25) for executing analysis that is based on the result of sensing by the interference-sensing means (23) and that includes estimation as to the continuity of the interference, and a wireless resource control means (26) for executing wireless resource control for reducing the effect of the interference in accordance with the result of analysis by the interference analysis means (25). The continuity includes temporal continuity and / or spatial continuity.

Claims

1. An interference detection means for detecting the occurrence of interference at a wireless base station, An interference analysis means that performs an analysis based on the results of detection by the interference detection means, the analysis including estimation of the continuity of the interference, The system includes a wireless resource control means that performs wireless resource control to reduce the effects of interference in accordance with the results of the analysis by the interference analysis means, The aforementioned continuity includes temporal continuity, The interference analysis means estimates the continuity of the interference for each TDD (Time Division Duplex) time slot, according to the signal transmission direction shown in the TDD (Time Division Duplex) time slot of the radio base station and the signal transmission direction shown in the TDD time slot of other radio base stations when estimating the continuity of the interference. Wireless base station.

2. The analysis by the interference analysis means is a prediction based on the results of the continuity estimation, and includes a prediction of whether or not the wireless resource control must be performed. The wireless resource control means executes the wireless resource control when it is predicted that the execution of the wireless resource control is necessary. The wireless base station according to claim 1.

3. The interference analysis means includes an interference period estimation means for estimating the temporal continuity. A wireless base station according to claim 1 or claim 2.

4. The continuity includes spatial continuity, The interference analysis means further comprises interference area estimation means for estimating the spatial continuity. The wireless base station according to claim 3.

5. The interference area estimation means estimates the spatial continuity by performing interpolation processing based on the kriging method. The wireless base station according to claim 4.

6. The interference area estimation means estimates the position and direction of the interference source based on beam information corresponding to each interference detection point, and estimates the spatial continuity based on the position and direction of the interference source. A wireless base station according to claim 4 or claim 5.

7. A control device for a wireless base station, An interference detection means for detecting the occurrence of interference at the aforementioned wireless base station, An interference analysis means that performs an analysis based on the results of detection by the interference detection means, the analysis including estimation of the continuity of the interference, The system includes a wireless resource control means that performs wireless resource control to reduce the effects of interference in accordance with the results of the analysis by the interference analysis means, The aforementioned continuity includes temporal continuity, The interference analysis means estimates the continuity of the interference for each TDD (Time Division Duplex) time slot, according to the signal transmission direction shown in the TDD (Time Division Duplex) time slot of the radio base station and the signal transmission direction shown in the TDD time slot of other radio base stations when estimating the continuity of the interference. Control device.

8. A method for controlling a wireless base station, The interference detection means detects the occurrence of interference at the wireless base station, The interference analysis means performs an analysis based on the results of detection by the interference detection means, which includes estimating the continuity of the interference. The wireless resource control means performs wireless resource control to reduce the effects of the interference, in accordance with the results of the analysis by the interference analysis means. The aforementioned continuity includes temporal continuity, The interference analysis means estimates the continuity of the interference for each TDD (Time Division Duplex) time slot, based on the signal transmission direction shown in the TDD (Time Division Duplex) time slot of the radio base station and the signal transmission direction shown in the TDD time slot of other radio base stations. Control method.

9. Computers, An interference detection means for detecting the occurrence of interference at a wireless base station, An interference analysis means that performs an analysis based on the results of detection by the interference detection means, the analysis including estimation of the continuity of the interference, A program for causing a wireless resource control means to function as a means that performs wireless resource control to reduce the effects of interference in accordance with the results of the analysis by the interference analysis means, The aforementioned continuity includes temporal continuity, The interference analysis means estimates the continuity of the interference for each TDD (Time Division Duplex) time slot, according to the signal transmission direction shown in the TDD (Time Division Duplex) time slot of the radio base station and the signal transmission direction shown in the TDD time slot of other radio base stations when estimating the continuity of the interference. program.

10. A wireless communication system including one or more wireless base stations, An interference detection means for detecting the occurrence of interference in the wireless communication system, An interference analysis means that performs an analysis based on the results of detection by the interference detection means, the analysis including estimation of the continuity of the interference, The system includes an output control means that performs control of at least one of the following: storage of information indicating the results of analysis by the interference analysis means and information indicating the content of wireless resource control performed or carried out in accordance with the results of analysis by the interference analysis means in order to reduce the effects of the interference, on a recording medium and output to a user interface. The aforementioned continuity includes temporal continuity, The interference analysis means estimates the continuity of the interference for each TDD (Time Division Duplex) time slot, according to the signal transmission direction shown in the TDD (Time Division Duplex) time slot of the radio base station and the signal transmission direction shown in the TDD time slot of other radio base stations when estimating the continuity of the interference. Wireless communication system.

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