Patent ID: 9635648
Date: 2017-04-25
CPC Classifications: H04L,H04W

Claim:
1. A method for receiving downlink control information from a base station at a user equipment in a wireless communication system, the method comprising: receiving, by the user equipment, first control information in a first physical resource block (PRB) pair of a specific subframe using a first antenna port transmitting a first reference signal; and receiving, by the user equipment, second control information in a second PRB pair of the specific subframe using a second antenna port transmitting a second reference signal, wherein a same precoding is applied to the first reference signal and the second reference signal, when a distance between the first PRB pair and the second PRB pair is equal to or smaller than a predetermined value in a unit of frequency, and wherein a different precoding is applied to the first reference signal and the second reference signal, when the distance between the first PRB pair and the second PRB pair is greater than the predetermined value in the unit of frequency.