Patent ID: 9553660
Date: 2017-01-24
CPC Classifications: H04B,H04J,H04L,H04W

Claim:
1. A receiver comprising: radio signal reception circuitry configured to receive radio signals including a plurality of non-orthogonal signals which are not orthogonal to each other; interference cancelation circuitry configured to extract a non-orthogonal signal addressed to the receiver from the plurality of non-orthogonal signals received by a communication interface by demodulating and cancelling a radio signal addressed to another receiver; and reference signal reception circuitry configured to receive a reference signal to be used by the interference cancellation circuitry to demodulate and cancel the radio signal addressed to the another receiver; and demodulation circuitry configured to demodulate the non-orthogonal signal extracted by the interference cancellation circuitry and addressed to the receiver, on the basis of the reference signal, wherein the reference signal is multiplexed in a same radio resource block as a radio resource block allocated to the non-orthogonal signals, and the reference signal is multiplexed in the radio resource block in a case where at least one of the plurality of non-orthogonal signals is scheduled in the radio resource block.