1. A user equipment, comprising:a processor that measures:
a Reference Signal-Signal to Interference and Noise Ratio (RS-SINR) for a reference signal in a physical downlink control channel transmitted from a base station; and
at least one of a Reference Signal Received Quality (RSRQ) and a Reference Signal Received Power (RSRP); and
a transmitter that reports the measured RS-SINR to the base station in accordance with a reporting trigger based on the measured RSRQ or RSRP value.