METHOD AND APPARATUS FOR REDUCING INTER-CELL INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM
First Claim
1. A method for reducing intercell interference in a wireless communication system, the method comprising:
- receiving, at a first user equipment from a first cell, scheduling information for transmission of a first signal to a second cell; and
transmitting, at the first user equipment, the first signal to the second cell based on the scheduling information,wherein the scheduling information is provided by the first cell when uplink or downlink transmission of the first cell is interfered by uplink or downlink transmission of the second cell, andwherein the first signal indicates a request to reduce transmission power of the second cell or a second user equipment served by the second cell.
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Abstract
The present invention relates to a method and apparatus for reducing inter-cell interference in a wireless communication system. The method for reducing inter-cell interference in a wireless communication system according to one embodiment of the present invention includes: a step in which a first terminal receives, from a first cell, scheduling information for the transmission of a first signal to a second cell; and a step in which the first terminal transmits the first signal to the second cell on the basis of the scheduling information. The scheduling information is provided by the first cell in the event an uplink or downlink transmission of the first cell is interfered with by an uplink or downlink transmission of the second cell. The first signal indicates a request for reducing the transmitting power of the second cell or of the second terminal served by the second cell.
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Citations
22 Claims
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1. A method for reducing intercell interference in a wireless communication system, the method comprising:
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receiving, at a first user equipment from a first cell, scheduling information for transmission of a first signal to a second cell; and transmitting, at the first user equipment, the first signal to the second cell based on the scheduling information, wherein the scheduling information is provided by the first cell when uplink or downlink transmission of the first cell is interfered by uplink or downlink transmission of the second cell, and wherein the first signal indicates a request to reduce transmission power of the second cell or a second user equipment served by the second cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10)
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8. (canceled)
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9. (canceled)
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11. A method for reducing intercell interference in a wireless communication system, the method comprising:
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determining, at a first cell, whether or not uplink or downlink transmission of the first cell is interfered by uplink or downlink transmission of a second cell; and transmitting, from the first cell to the first user equipment, scheduling information for transmission of a first signal from a first user equipment to the second cell when determining the interference has occurred, wherein the first signal is transmitted from the first user equipment to the second cell based on the scheduling information, and wherein the first signal indicates a request to reduce transmission power of the second cell or a second user equipment served by the second cell. - View Dependent Claims (12, 13, 14, 15, 16, 17, 20)
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18. (canceled)
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19. (canceled)
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21. A user equipment that supports intercell interference reduction in a wireless communication system, the user equipment comprising:
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a reception module for receiving a downlink signal from a first base station; a transmission module for transmitting an uplink signal to the first base station; and a processor for controlling the user equipment including the reception module and the transmission module, wherein the processor is configured to receive scheduling information for transmission of a first signal to a second base station from the first base station through the reception module and to transmit the first signal to the second base station based on the scheduling information through the transmission module, and wherein the scheduling information is provided by the first base station when uplink or downlink transmission of the first base station is interfered by uplink or downlink transmission of the second base station, and wherein the first signal indicates a request to reduce transmission power of the second base station or a user equipment served by the second base station.
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22. A base station that supports intercell interference reduction in a wireless communication system, the base station comprising:
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a reception module for receiving a downlink signal from a first base station; a transmission module for transmitting an uplink signal to the first base station; and a processor for controlling the base station including the reception module and the transmission module, wherein the processor is configured to determine whether or not uplink or downlink transmission of the base station is interfered by uplink or downlink transmission of other base station, and to transmit, from the base station to the first user equipment, scheduling information for transmission of a first signal from a first user equipment to the other base station through the transmission module when determining the interference has occurred, and wherein the first signal is transmitted from the first user equipment to the different base station based on the scheduling information, and wherein the first signal indicates a request to reduce transmission power of the different base station or a second user equipment served by the different base station.
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Specification