Patent ID: 9699668
Date: 2017-07-04
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for measuring a downlink signal from a serving evolved Node B (eNB) having multi-layered antennas at a User Equipment (UE) in a wireless communication system, the method comprising: receiving information about a Beam Direction Pattern (BDP) to be used to transmit the downlink signal in each of a plurality of subframes from the serving eNB, wherein the BDP is one of multiple BDPs and each of the multiple BDPs is associated with a respective one of the multi-layered antennas; receiving and measuring the downlink signal for each of the plurality of subframes based on the received information about the BDP; reporting BDP information related to downlink signal reception quality based on a result of measuring the downlink signal to the serving eNB, wherein the BDP information related to downlink signal reception quality includes information about a BDP causing best downlink signal reception quality and information about a BDP causing worst downlink signal reception quality, and the BDP information related to downlink signal reception quality is used for estimating a geographical position of the UE; and transitioning to an idle state in a subframe except for a subframe transmitted using the BDP causing best downlink signal reception quality, wherein when the downlink signal includes scheduling information indicating a plurality of subframes, the BDP is used to transmit the downlink signal in a control region of each of the plurality of subframes, and all of the multiple BDPs are used to transmit the downlink signal in a data region of each of the plurality of subframes.