Method and apparatus for mitigating inter-cell interference in wireless communication system

摘要

A method and apparatus of mitigating inter-cell interference in a wireless communication system are provided. A user equipment receives serving-cell data over a first data channel indicated by a first control channel for which decoding is successful by monitoring a plurality of candidate control channels in a search space of a serving cell. The user equipment receives interfering-cell data over a second data channel indicated by a second control channel for which decoding is successful by monitoring a plurality of candidate control channels in a search space of an interfering cell. The A user equipment cancels interference from the interfering cell by processing the serving-cell data and the interfering-cell data.

主权项

1. A method of mitigating inter-cell interference in a wireless communication system, the method comprising:
receiving, by a user equipment (UE), serving-cell data over a first data channel indicated by a first control channel for which decoding is successful by monitoring a plurality of candidate control channels in a search space of a serving cell; and receiving, by the UE, interfering-cell data over a second data channel indicated by a second control channel for which decoding is successful by monitoring a plurality of candidate control channels in a search space of an interfering cell, wherein when a frequency band of the first data channel overlaps with a frequency band of the second data channel, cancelling, by the UE, interference by subtracting re-generated interfering-cell data from the received serving-cell data and the received interfering-cell data, wherein the re-generated interfering-cell data is generated by the UE via the following steps: decoding the received interfering-cell data at the overlapping frequency band; re-encoding data which is successfully decoded; and multiplying an estimated second data channel with the re-encoded data.