Patent ID: 9713140
Date: 2017-07-18
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for decoding an enhanced physical downlink control channel (EPDCCH) by a user equipment (UE) in a wireless communication system, the method comprising: receiving an indication indicating a first assumption or a second assumption for decoding a physical downlink shared channel (PDSCH); and decoding the EPDCCH based on the indication, wherein the first assumption indicates that an antenna port for a cell-specific reference signal (CRS), an antenna port for a UE-specific reference signal (RS) for the physical downlink shared channel (PDSCH), and an antenna port for a channel state information-RS (CSI-RS) are quasi co-located, and wherein, when the indication indicates the first assumption, the EPDCCH is decoded on an assumption that the antenna port for the CRS and an antenna port for a demodulation RS (DMRS) for the EPDCCH are quasi co-located.