Method and apparatus for receiving or transmitting downlink signal in a wireless communication system
Abstract:
A method for receiving a downlink signal according to a Demodulation Reference Signal (DMRS)-based transmission scheme, performed by a mobile terminal, in a wireless communication system is disclosed. The method includes receiving indication information indicating whether rate matching or timewise Resource Element (RE) pairing is allowed for REs that do not constitute frequency-wise RE pairs for Space Frequency Block Coding (SFBC) on symbols to which DMRSs are mapped in a Resource Block (RB) for a DL data channel, and decoding the downlink data channel, on assumption that the REs that do not constitute frequency-wise RE pairs for SFBC are rate-matched, or constitute time-wise RE pairs to which transmission data is mapped, according to the indication information.
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