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US 9,425,868 B2Granted
Base station, communication system and communication method
AssigneeSony Corporation
InventorHiroaki Takano
Life of this patent
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Abstract
Provided is a base station including a plurality of branches, a storage unit that stores a calibration coefficient of each of the plurality of branches for each combination of other base stations, and a multiplying unit that multiplies a transmission signal from each of the plurality of branches by a calibration coefficient corresponding to a combination of one or more other base stations when CoMP transmission with the one or more other base stations is performed through the plurality of branches.
Claims7
A base state, comprising:
- a plurality of branches;
- and
- circuitry configured to:
- store a calibration coefficient or each of the plurality of branches for each combination with other base stations;
- store a combination of the other base stations performing CoMP transmission with the plurality of branches for each communication device of a CoMP transmission destination;
- read the calibration coefficient of each of the plurality of branches corresponding to a combination of other corresponding base stations based on the combination of the other base stations corresponding to a communication device assigned to a resource block group;
- and
- multiply a transmission signal from each of the plurality of branches in each resource block group by the read calibration coefficient corresponding to a combination of one or more other base stations when Cooperative Multi-Point (CoMP) transmission with the combination of one or more other base stations is performed through the plurality of branches.
5 more elements
A communication system, comprising:
- a plurality of base stations;
- each of the plurality of base stations including:
- a plurality of branches, and
- circuitry configured to:
- store a calibration coefficient of each of the plurality of branches for each combination with of base stations;
- store a combination of the one or more other base stations performing CoMP transmission with the plurality of branches for each communication device of a CoMP transmission destination;
- read the calibration coefficient of each of the plurality of branches corresponding to a combination of other corresponding base stations based on the combination of the other base stations corresponding to a communication device assigned to a resource block group;
- and
- multiply a transmission signal from each of the plurality of branches in each resource block group by the read calibration coefficient corresponding to a combination of one or more other base stations when Cooperative Multi-Point (CoMP) transmission with the combination of one or more otter base stations is performed through the plurality of branches.
6 more elements
A communication method, comprising:
- in a base station comprising a plurality of branches and circuitry;
- storing a combination of other base stations performing CoMP transmission with the plurality of branches for each communication device of a CoMP transmission destination;
- reading a calibration coefficient of each of the plurality of branches corresponding to a combination of other corresponding base stations based on the combination of the other base stations corresponding to a communication device assigned to a resource block grow;
- and
- multiplying, a transmission signal from each of the plurality of branches in each resource block group by the read calibration coefficient corresponding to a combination of one or more other base stations when Cooperative Multi-Point (CoMP) transmission with the combination of one or more other base stations is performed through the plurality of branches.
2 more elements
Dependencies are inferred from the claim text.