Patent ID: 9515798
Filing Date: 2016-12-06
CPC Classification: H04L

Claim Text:
1. A method for receiving an Enhanced Physical Downlink Control Channel (E-PDCCH) signal in a wireless access system, the method comprising: receiving, by a user equipment, an E-PDCCH indication signal, including information indicating the presence or absence of an E-PDCCH signal and resource allocation information indicating a resource region of the E-PDCCH signal; and receiving, by a user equipment, the E-PDCCH signal in the resource region indicated by the resource allocation information, wherein the E-PDCCH indication signal is transmitted in a legacy PDCCH region, wherein the E-PDCCH signal is transmitted based on Demodulation Reference Signal (DMRS), and wherein the E-PDCCH signal is allocated by frequency-first mapping in reverse time order, starting from a last OFDM symbol carrying DMRS for the E-PDCCH signal among OFDM symbols of a subframe.