Patent ID: 9680623
Date: 2017-06-13
CPC Classifications: H04L,H04W

Claim:
1. A method for reporting channel state of an Enhanced Physical Downlink Control Channel (EPDCCH) in a wireless communication system, the method comprising: selecting N subbands among a set of subbands; and calculating and reporting a Channel Quality Indicator (CQI) for the selected N subbands, wherein the selected N subbands includes M EPDCCH subbands (EPDCCH SBs), where N and M are integers equal to or greater than 1 and N is equal to or greater than M, and the M EPDCCH SBs are upper M EPDCCH SBs ranked in a descending order of CQI value among EPDCCH SBs included in the set of subbands, and wherein each of the EPDCCH SBs includes a Physical Resource Block (PRB) pair to which the EPDCCH is mapped.