Patent 10389418 was granted and assigned to NTT DOCOMO, INC. on August, 2019 by the United States Patent and Trademark Office.
A user equipment used in a mobile communication system that has multiple antenna ports configured to receive a first reference signal from a base station is disclosed. The antenna ports are configured to transmit the first feedback information for the first reference signal. Additionally, the antenna ports are configured to receive a second reference signal from the base station and transmit the second feedback information for the second reference signal.