METHOD AND APPARATUS FOR PERFORMING QUASI CO-LOCATION IN WIRELESS ACCESS SYSTEM

摘要

The present invention relates to various methods for performing quasi co-location (QCL) and apparatuses supporting the same. As an embodiment of the present invention, a method for performing quasi co-location (QCL) for a new carrier type (NCT) by a terminal in a wireless access system may include the steps of: receiving a higher layer signal including a QCL reference CRS information parameter indicating CRS information of a reference carrier; receiving a physical downlink control channel (PDCCH) signal including a PDSCH remapping and quasi co-location indicator (PQI) field; receiving a CSI-RS of a QCLed NCT and a CRS of a reference carrier on the basis of a PQI field and a QCL reference CRS information parameter; and performing frequency tracking of the NCT and the reference carrier on the basis of the CSI-RS of the NCT and the CRS of the reference carrier.

主权项

1. A method for performing Quasi Co-Location (QCL) for a first carrier by a User Equipment (UE) in a wireless access system, the method comprising:
receiving a higher layer signal including a QCL reference Cell specific Reference Signal (CRS) information parameter indicating CRS information of a reference carrier; receiving a Physical Downlink Control Channel (PDCCH) signal including a Physical Downlink Shared Channel (PDSCH) Resource Element (RE) Mapping and QCL Indicator (PQI) field; receiving a Reference Signal (RS) of the first carrier with which a CRS of the reference carrier is QCL, based on the QCL reference CRS information parameter and the PQI field; and performing frequency tracking of the reference carrier and the first carrier based on the CRS of the reference carrier and the RS of the first carrier.