Method and device for canceling interference and receiving data in wireless communication system
AssigneeLG Electronics Inc.
InventorsHyungtae Kim, Jonghyun Park, Hanbyul Seo, Kijun Kim
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Abstract
The present invention relates to a wireless communication system. A method by which a terminal cancels interference and receives data in a wireless communication system, according to one embodiment of the present invention, comprises the steps of receiving first downlink control information (DCI) including scheduling information for receiving a physical downlink shared channel (PDSCH) from a base station, receiving second DCI including scheduling information on an interference channel from a second base station, and canceling the interference from the second base station on the basis of the first DCI and the second DCI, and receiving the PDSCH.
Claims10
A method for canceling interference and receiving data by a user equipment in a wireless communication system, the method comprising:
- receiving unified downlink control information (DCI) from a first base station,
- wherein the unified DCI comprising a first DCI including a scheduling information for receiving a first downlink shared channel (PDSCH) and a second DCI including a scheduling information for receiving a second PDSCH;
- and
- simultaneously receiving:
- the first PDSCH from the first base station in accordance with the scheduling information included in the first DCI of the unified DCI received from the first base station, and
- the second PDSCH from a second base station in accordance with the scheduling information included in the second DCI of the unified DCI received from the first base station;
- canceling interference of the second PDSCH based on the scheduling information for receiving the second PDSCH included in the unified DCI,
- wherein the first PDSCH and the second PDSCH are transmitted by the first and second base stations through respective transmission modes independent from each other,
- wherein the unified DCI comprises a field for notifying the user equipment of the transmission modes of the second PDSCH,
- wherein the first DCI and the second DCI are quasi co-located through their respective PQIs (PDSCH RE mapping and quasi co-location indicator) independent from each other, and
- wherein each of the PQIs includes a virtual cell ID (identifier) for generating a demodulation reference signal (DMRS).
A user equipment for canceling interference and receiving data in a wireless communication system, the user equipment comprising:
- radio frequency (RF) units;
- and
- a processor, wherein the processor is configured to:
- receive unified downlink control information (DCI) from a first base station,
- wherein the unified DCI comprising a first DCI including a scheduling information for receiving a first downlink shared channel (PDSCH) and a second DCI including a scheduling information for receiving a second PDSCH;
- and
- simultaneously receive:
- the first PDSCH from the first base station in accordance with the scheduling information included in the first DCI of the unified DCI received from the first base station, and
- the second PDSCH from a second base station in accordance with the scheduling information included in the second DCI of the unified DCI received from the first base station;
- cancel interference of the second PDSCH based on the scheduling information for receiving the second PDSCH included in the unified DCI,
- wherein the first PDSCH and the second PDSCH are transmitted by the first and second base stations through respective transmission modes independent from each other,
- wherein the unified DCI comprises a field for notifying the user equipment of the transmission modes of the second PDSCH,
- wherein the first DCI and the second DCI are quasi co-located through their respective PQIs (PDSCH RE mapping and quasi co-location indicator) independent from each other, and
- wherein each of the PQIs includes a virtual cell ID (identifier) for generating a demodulation reference signal (DMRS).
Dependencies are inferred from the claim text.