Controller and method for use in radio station in radio communication system
First Claim
1. A controller for controlling transmission availability for a radio station in a radio communication system, comprising:
- an information acquisition unit configured to acquire radio communication state information on another radio station different from the radio station via a backbone network connected to the radio station and the other radio station, the radio communication state information including frequency information indicative of a frequency band used by the other radio station and waveform feature information indicative of a waveform feature of a radio signal transmitted from the other radio station, the waveform feature including cyclostationarity derived from second order periodic autocorrelations, variances of signal amplitudes or frequency correlations;
a waveform information extraction unit configured to receive a radio signal and calculate a waveform feature based on the waveform feature information, the waveform feature indicating whether the received radio signal includes the radio signal transmitted from the other radio station; and
a radio resource parameter determination unit configured to determine whether signal transmission from the radio station is available by comparing a waveform feature threshold with the waveform feature calculated by the waveform information extraction unit and specify a radio resource to be used for the signal transmission based on the frequency information, the waveform feature information and/or the calculated waveform feature.
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Accused Products
Abstract
One aspect of the present invention relates to a controller for a radio station. The controller includes an information acquisition unit acquiring radio communication state information on another radio station different from the radio station via a connected backbone network, the radio communication state information including frequency information and waveform feature information, a waveform information extraction unit calculating a waveform feature based on the waveform feature information, the waveform feature indicating whether a received radio signal includes the radio signal transmitted from the other radio station, and a radio resource parameter determination unit determining whether signal transmission from the radio station is available and specify a radio resource to be used for the signal transmission based on the frequency information, the waveform feature information and/or the calculated waveform feature.
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Citations
18 Claims
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1. A controller for controlling transmission availability for a radio station in a radio communication system, comprising:
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an information acquisition unit configured to acquire radio communication state information on another radio station different from the radio station via a backbone network connected to the radio station and the other radio station, the radio communication state information including frequency information indicative of a frequency band used by the other radio station and waveform feature information indicative of a waveform feature of a radio signal transmitted from the other radio station, the waveform feature including cyclostationarity derived from second order periodic autocorrelations, variances of signal amplitudes or frequency correlations; a waveform information extraction unit configured to receive a radio signal and calculate a waveform feature based on the waveform feature information, the waveform feature indicating whether the received radio signal includes the radio signal transmitted from the other radio station; and a radio resource parameter determination unit configured to determine whether signal transmission from the radio station is available by comparing a waveform feature threshold with the waveform feature calculated by the waveform information extraction unit and specify a radio resource to be used for the signal transmission based on the frequency information, the waveform feature information and/or the calculated waveform feature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling transmission availability for a radio station in a radio communication system, comprising:
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acquiring radio communication state information on another radio station different from the radio station via a backbone network connected to the radio station and the other radio station, the radio communication state information including frequency information indicative of a frequency band used by the other radio station and waveform feature information indicative of a waveform feature of a radio signal transmitted from the other radio station, the waveform feature including cyclostationarity derived from second order periodic autocorrelations, variances of signal amplitudes or frequency correlations; receiving a radio signal and calculating a waveform feature based on the waveform feature information, the waveform feature indicating whether the received radio signal includes the radio signal transmitted from the other radio station; and determining whether signal transmission from the radio station is available by comparing a waveform feature threshold with the calculated waveform feature and specifying a radio resource to be used for the signal transmission based on the frequency information, the waveform feature information and/or the calculated waveform feature. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification