Method for terminal, configured to aggregate plurality of component carriers, for mitigating interference
First Claim
1. A method of performing interference mitigation by a user equipment (UE) configured to aggregate a plurality of component carriers, the method comprising:
- receiving, by the UE, control information from a base station, the control information including information indicating that interference mitigation is to be performed for a signal transmitted via a first component carrier among the plurality of component carriers;
performing, by the UE, interference mitigation for a second component carrier other than the first component carrier based on an interference environment, based on that the UE is capable of performing blind detection of cell-specific reference signal from an adjacent cell in the second component carrier; and
transmitting, by the UE, information that the interference mitigation has been performed for the second component carrier to the base station, through a physical uplink control channel (PUCCH) signal,wherein the PUCCH signal includes a channel quality indication (CQI) index and a cell-specific reference signal-interference cancellation (CRS-IC) index, andwherein at least one of the CQI index and the CRS-IC index includes the information that the interference mitigation has been performed for the second component carrier.
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Abstract
One embodiment of the present specification provides a method for a terminal, configured to aggregate a plurality of component carriers, for mitigating interference. The method comprises the steps of: the terminal receiving control information from a base station, the control information comprising information indicating that interference mitigation action is to be carried out for a signal transmitted by means of a first component carrier from among the plurality of component carriers; on the basis of the interference environment, the terminal carrying out interference mitigation action by blind-detecting a cell-specific reference signal information for a second component carrier that is not the first component carrier; and the terminal transmitting, to the base station, information indicating that the interference mitigation action was carried out for the second component carrier.
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Citations
6 Claims
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1. A method of performing interference mitigation by a user equipment (UE) configured to aggregate a plurality of component carriers, the method comprising:
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receiving, by the UE, control information from a base station, the control information including information indicating that interference mitigation is to be performed for a signal transmitted via a first component carrier among the plurality of component carriers; performing, by the UE, interference mitigation for a second component carrier other than the first component carrier based on an interference environment, based on that the UE is capable of performing blind detection of cell-specific reference signal from an adjacent cell in the second component carrier; and transmitting, by the UE, information that the interference mitigation has been performed for the second component carrier to the base station, through a physical uplink control channel (PUCCH) signal, wherein the PUCCH signal includes a channel quality indication (CQI) index and a cell-specific reference signal-interference cancellation (CRS-IC) index, and wherein at least one of the CQI index and the CRS-IC index includes the information that the interference mitigation has been performed for the second component carrier. - View Dependent Claims (2, 3, 4)
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5. A user equipment (UE) configured to aggregate a plurality of component carriers, the UE comprising:
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a transceiver to receive control information from a base station; and a processor to control the transceiver, wherein the control information includes information indicating that interference mitigation is to be performed for a signal transmitted via a first component carrier among the plurality of component carriers, and wherein the processor; performs interference mitigation for a second component carrier other than the first component carrier based on an interference environment, based on that the UE is capable of performing blind detection of cell-specific reference signal from an adjacent cell in the second component carrier; and transmits information that the interference mitigation has been performed for the second component carrier to the base station through a physical uplink control channel (PUCCH) signal, wherein the PUCCH signal includes a channel quality indication (CQI) index and a cell-specific reference signal-interference cancellation (CRS-IC) index, wherein at least one of the CQI index and the CRS-IC index includes the information that the interference mitigation has been performed for the second component carrier. - View Dependent Claims (6)
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Specification