Method for mitigating inter-cell interference in wireless communication system and device therefor
First Claim
1. A method for canceling inter-cell interference in a wireless communication system, the method comprising;
- receiving from a neighbor cell, time resource interference information indicating whether a subframe is a reduced-power almost blank subframe (ABS) or a normal subframe;
receiving from the neighbor cell, first frequency resource interference information related to the reduced-power ABS and a plurality of first thresholds related to the reduced-power ABS;
receiving from the neighbor cell, second frequency resource interference information related to the normal subframe and a plurality of second thresholds related to the normal subframe;
performing downlink communication and uplink communication by using the first frequency resource interference information in the reduced-power ABS; and
performing downlink communication and uplink communication by using the second frequency resource interference information in the normal subframe,wherein the first frequency resource interference information indicates a range of transmission power of the neighbor cell in the reduced-power ABS based on the plurality of first thresholds, andwherein the second frequency resource interference information indicates a range of transmission power of the neighbor cell in the normal subframe based on the plurality of second thresholds.
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Abstract
The present application provides a method for allowing a cell to remove inter-cell interference in a wireless communication system. Specifically, the method includes receiving, from neighboring cells, time resource interference information on a first subframe type and a second subframe type; receiving, from said neighboring cells, first frequency resource interference information corresponding to said first subframe type and second frequency resource interference information corresponding to said second subframe type; and performing downlink communication and uplink communication by using said first frequency resource interference information, said second frequency resource interference information, and said time resource interference information.
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Citations
14 Claims
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1. A method for canceling inter-cell interference in a wireless communication system, the method comprising;
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receiving from a neighbor cell, time resource interference information indicating whether a subframe is a reduced-power almost blank subframe (ABS) or a normal subframe; receiving from the neighbor cell, first frequency resource interference information related to the reduced-power ABS and a plurality of first thresholds related to the reduced-power ABS; receiving from the neighbor cell, second frequency resource interference information related to the normal subframe and a plurality of second thresholds related to the normal subframe; performing downlink communication and uplink communication by using the first frequency resource interference information in the reduced-power ABS; and performing downlink communication and uplink communication by using the second frequency resource interference information in the normal subframe, wherein the first frequency resource interference information indicates a range of transmission power of the neighbor cell in the reduced-power ABS based on the plurality of first thresholds, and wherein the second frequency resource interference information indicates a range of transmission power of the neighbor cell in the normal subframe based on the plurality of second thresholds. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for canceling inter-cell interference in a wireless communication system, the apparatus comprising:
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a radio frequency module configured to transceiver wire/wireless signals; and a processor configured to; receive from a neighbor cell, time resource interference information indicating whether a subframe is a reduced-power almost blank subframe (ABS) or a normal subframe through the radio frequency module, receive from the neighbor cell, first frequency resource interference information related to the reduced-power ABS and a plurality of first thresholds related to the reduced-power ABS through the radio frequency module, receive from the neighbor cell, second frequency resource interference information related to the normal subframe and a plurality of second thresholds related to the normal subframe through the radio frequency module, perform downlink communication and uplink communication by using the first frequency resource interference information in the reduced-power ABS, and perform downlink communication and uplink communication by using the second frequency resource interference information in the normal subframe, wherein the first frequency resource interference information indicates a range of transmission power of the neighbor cell in the reduced-power ABS based on the plurality of first thresholds, and wherein the second frequency resource interference information indicates a range of transmission power of the neighbor cell in the normal subframe based on the plurality of second thresholds. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification