PRECODING TECHNIQUES FOR DOWNLINK COORDINATED MULTIPOINT TRANSMISSION IN RADIO COMMUNICATIONS SYSTEM
First Claim
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1. A method for deciding a precoding vector of coordinated multi-point transmission (CoMP) for at least one user equipment in a network, comprising:
- receiving channel state information for CoMP from the user equipment, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and
deciding the precoding vector of CoMP based on the channel state information.
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Abstract
A precoding vector of coordinated multipoint transmission (CoMP) for at least one user equipment is decided by receiving the channel state information for CoMP from the user equipment, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and deciding the precoding vector of CoMP based on the channel state information.
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Citations
23 Claims
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1. A method for deciding a precoding vector of coordinated multi-point transmission (CoMP) for at least one user equipment in a network, comprising:
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receiving channel state information for CoMP from the user equipment, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and deciding the precoding vector of CoMP based on the channel state information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 13, 15, 17)
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9. A system for deciding a precoding vector of coordinated multipoint transmission (CoMP) for at least one user equipment in a network, comprising:
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a receiver for receiving channel state information for CoMP from the user equipment, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and a scheduler for deciding the precoding vector of CoMP based on the channel state information. - View Dependent Claims (11, 12)
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14. A user equipment in a cellular network, comprising:
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a channel estimator for generating channel state information for CoMP, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and a transmitter for transmitting the channel state information to the serving cell. - View Dependent Claims (16, 18, 19, 20)
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21. A feedback method in a user equipment in a cellular network, comprising:
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generating channel state information for CoMP, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and transmitting the channel state information to the serving cell.
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22. A computer-readable program stored in a recording medium, for functioning a program-controlled processor as a system deciding a precoding vector of coordinated multipoint transmission (CoMP) for at least one user equipment in a network, comprising:
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receiving channel state information for CoMP from the user equipment, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and deciding the precoding vector of CoMP based on the channel state information.
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23. A computer-readable program stored in a recording medium, for functioning a program-controlled processor as a user equipment for transmitting channel state information for CoMP to a network, comprising:
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generating the channel state information including inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and transmitting the channel state information to the serving cell.
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Specification