Patent ID: 9143969
Filing Date: 2015-09-22
Classification: H04B,H04J,H04L,H04W,Y02D

Abstract:
1. A terminal apparatus comprising: a receiver which, in operation, receives a signal including a CSI reference signal for channel state estimation; a separator which, in operation, separates the CSI reference signal from the received signal, the CSI reference signal being mapped only to at least one OFDM symbol in a subframe other than subframes that can be used for MBSFN (Multimedia Broadcast multicast service Single Frequency Network), among a plurality of subframes including at least one subframe used for MBSFN and another subframe that can be used for MBSFN, each subframe comprising a plurality of OFDM symbols; an estimator which, in operation, estimates a channel state using the separated CSI reference signal; and a transmitter which, in operation, transmits CQI information regarding the estimated channel state, wherein at least one of the receiver, the separator, the estimator and the transmitter includes circuitry.