Communication control device, communication control method, and terminal device
First Claim
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1. A communication control device comprising:
- circuitry configured tocontrol base stations of one or more small cells which are partly or entirely overlapped by a macrocell to transmit signals for measurement by a terminal device and decide a timing at which each of the signals is transmitted in accordance with a time taken for a corresponding one of the base stations to be activated from an idle state;
transmit small cell information to the terminal device, the small cell information comprising a list including the timing at which each of the signals is transmitted and information that indicates a frequency channel at which each of the signals is transmitted;
acquire a result of the measurement performed by the terminal device with regard to said one or more small cells; and
select a base station which is not to be set in the idle state from base stations of the one or more small cells based on the result of the measurement.
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Abstract
[Object] To make it possible to suppress deterioration in communication quality of radio communication in a small cell while power consumption of a base station of the small cell is reduced.
[Solution] Provided is a communication control device including: an acquisition unit configured to acquire a result of measurement performed by a terminal device with regard to one or more small cells which are partly or entirely overlapped by a macrocell; and a selection unit configured to select a base station which is not to be set in an idle state from base stations of the one or more small cells based on the result of the measurement.
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Citations
12 Claims
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1. A communication control device comprising:
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circuitry configured to control base stations of one or more small cells which are partly or entirely overlapped by a macrocell to transmit signals for measurement by a terminal device and decide a timing at which each of the signals is transmitted in accordance with a time taken for a corresponding one of the base stations to be activated from an idle state; transmit small cell information to the terminal device, the small cell information comprising a list including the timing at which each of the signals is transmitted and information that indicates a frequency channel at which each of the signals is transmitted; acquire a result of the measurement performed by the terminal device with regard to said one or more small cells; and select a base station which is not to be set in the idle state from base stations of the one or more small cells based on the result of the measurement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A communication control method comprising:
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controlling base stations of one or more small cells which are partly or entirely overlapped by a macrocell to transmit signals for measurement by a terminal device and deciding a timing at which each of the signals is transmitted in accordance with a time taken for a corresponding one of the base stations to be activated from an idle state; transmitting small cell information to the terminal device, the small cell information comprising a list including the timing at which each of the signals is transmitted and information that indicates a frequency channel at which each of the signals is transmitted; acquiring a result of the measurement performed by the terminal device with regard to said one or more small cells; and selecting, using a processor, a base station which is not to be set in the idle state from base stations of the one or more small cells based on the result of the measurement.
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11. A communication control device comprising:
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circuitry configured to control transmission of a signal for measurement performed by a terminal device with regard to a small cell which is partly or entirely overlapped by a macrocell and decide a timing at which the signal is transmitted in accordance with a time taken for a base station of the small cell to be activated from an idle state; transmit small cell information to the terminal device, the small cell information comprising a list including the timing of the signal and information that indicates a frequency channel at which the signal is transmitted; and refrain from causing the base station of the small cell to be in an idle state when the base station of the small cell is selected as a base station that is not to be set in the idle state based on a result of the measurement.
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12. A terminal device comprising:
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circuitry configured to receive signals from base stations of one or more small cells which are partly or entirely overlapped by a macrocell, each of the signals being received at a timing decided in accordance with a time taken for a corresponding one of the base stations to be activated from an idle state; receive small cell information comprising a list including the timing at which each of the signals is received and information that indicates a frequency channel at which each of the signals is transmitted; determine a result of measurement with regard to the one or more small cells; and provide the result of the measurement to a communication control device which selects a base station which is not to be set in the idle state from the base stations of the one or more small cells based on the result of the measurement.
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Specification