Method for receiving downlink signal and apparatus therefor

摘要

Provided is a method for receiving a downlink signal in a wireless communication system, the method comprising: transmitting, by a user equipment (UE), information on vertical angle restriction to be used for a precoding matrix which the UE desires to an eNodeB (eNB); and receiving, by the UE, a downlink signal precoded according to the information on vertical angle restriction, wherein the information on vertical angle restriction includes values indicating a lower limit angle and an upper limit angle for the precoding matrix.

主权项

1. A method for receiving a downlink signal in a wireless communication system, the method comprising:
transmitting, by a user equipment (UE), information about vertical angle restriction to be used for a precoding matrix which the UE desires to an eNodeB (eNB); and receiving, by the UE, a downlink signal precoded according to the information about vertical angle restriction, wherein the information about vertical angle restriction includes values indicating a lower limit angle and an upper limit angle for the precoding matrix, wherein the information about vertical angle restriction is transmitted through periodic reporting scheme, the information about vertical angle restriction being transmitted at a transmission timing independent of transmission timings of other values for channel state reporting, and wherein the information about vertical angle restriction is dropped when the transmission timing of the information about vertical angle restriction and a transmission timing of an RI frank indicator) or a CQI (channel quality indicator) overlap, and a PMI (precoding matrix index) is dropped when the transmission timing of the information about vertical angle restriction and a transmission timing of the PMI overlap.