Operation frequency setting method, network device and radio base station
AssigneeNtt Docomo, Inc.
InventorHiroyuki Hosono
Life of this patent
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Abstract
A mobile communication method includes an operation frequency setting method for setting an operation frequency of a radio base station including measuring by the radio base station a received power level of a common control signal transmitted by each of neighboring radio base stations, and comparing each of the measured received power levels of the common control signals with a prescribed threshold and determining an operation frequency of the radio base station from among operation frequency candidates from which a frequency of a common control signal having a received power level higher than the prescribed threshold is excluded.
Claims12
A mobile communication method that is an operation frequency setting method for setting an operation frequency of a radio base station comprising:
- step A of measuring by the radio base station a received power level of a common control signal transmitted by each of neighboring radio base stations;
- and
- step B of comparing each of the measured received power levels of the common control signals with a prescribed threshold and determining an operation frequency of the radio base station from among operation frequency candidates from which a frequency of a common control signal having a received power level higher than the prescribed threshold is excluded,
- wherein in the step B, an operation frequency of a neighboring radio base station having the highest priority among the operation frequency candidates from which the frequency of the common control signal having the received power level higher than the prescribed threshold is excluded is determined as the operation frequency of the radio base station.
A mobile communication method that is an operation frequency setting method for setting an operation frequency of a radio base station comprising:
- step A of measuring by the radio base station a received power level of a common control signal transmitted by each of neighboring radio base stations;
- and
- step B of comparing each of the measured received power levels of the common control signals with a prescribed threshold and determining an operation frequency of the radio base station from among operation frequency candidates from which a frequency of a common control signal having a received power level higher than the prescribed threshold is excluded,
- wherein in the step B, if there is no frequency of a common control signal having a received power level equal to or lower than the prescribed threshold, a frequency at which the maximum received power level is the lowest among maximum received power levels of respective frequencies of common control signals having received power levels higher than the prescribed threshold is determined as the operation frequency of the radio base station.
A network device configured to set an operation frequency of a radio base station, comprising an operation frequency determination unit configured to compare with a prescribed threshold each of received power levels of common control signals transmitted by neighboring radio base stations, which is notified by the radio base station, and determining the operation frequency of the radio base station from among operation frequency candidates from which a frequency of a common control signal having a received power level higher than the prescribed threshold is excluded,
- wherein, the operation frequency determination unit determines, as an operation frequency of the radio base station, an operation frequency of a neighboring radio base station having the highest priority among the operation frequency candidates from which the frequency of the common control signal having the received power level higher than the prescribed threshold is excluded.
A network device configured to set an operation frequency of a radio base station, comprising an operation frequency determination unit configured to compare with a prescribed threshold each of received power levels of common control signals transmitted by neighboring radio base stations, which is notified by the radio base station, and determining the operation frequency of the radio base station from among operation frequency candidates from which a frequency of a common control signal having a received power level higher than the prescribed threshold is excluded,
- wherein if there is no frequency of a common control signal having a received power level equal to or lower than the prescribed threshold, the operation frequency determination unit determines, as operation frequency of the radio base station, a frequency at which the maximum received power level is the lowest among maximum received power levels of respective frequencies of common control signals having received power levels higher than the prescribed threshold.
A radio base station configured to set an operation frequency of a radio base station, comprising:
- a measurement unit configured to measure a received power level of a common control signal transmitted from each of neighboring radio base stations;
- and
- an operation frequency determination unit configured to compare each of the measured received power levels of the common control signals with a prescribed threshold, and determine an operation frequency of the radio base station from among operation frequency candidates from which a frequency of a common control signal having a received power level higher than the prescribed threshold is excluded,
- wherein the operation frequency determination unit determines as the operation frequency of the radio base station an operation frequency of a neighboring radio base station having the highest priority among the operation frequency candidates from which the frequency of the common control signal having the received power level higher than the prescribed threshold being excluded.
A radio base station configured to set an operation frequency of a radio base station, comprising:
- a measurement unit configured to measure a received power level of a common control signal transmitted from each of neighboring radio base stations;
- and
- an operation frequency determination unit configured to compare each of the measured received power levels of the common control signals with a prescribed threshold, and determine an operation frequency of the radio base station from among operation frequency candidates from which a frequency of a common control signal having a received power level higher than the prescribed threshold is excluded,
- wherein if there is no frequency of a common control signal having a received power level equal to or lower than the prescribed threshold, the operation frequency determination unit determines as the operation frequency of the radio base station a frequency at which the maximum received power level is the lowest among maximum received power levels of respective frequencies of common control signals having received power levels higher than the prescribed threshold.
Dependencies are inferred from the claim text.