Patent ID: 8942322
Filing Date: 2015-01-27
Classification: H04B,H04L,H04W

Abstract:
1. A method of demodulating a signal, performed by a relay node, the method comprising: receiving, from an evolved NodeB (eNB), control information through a control channel and data corresponding to the control information through a data channel, wherein a number of layers used for transmission of the data is equal or more than 2; and demodulating, the control information and the data, wherein when the control information and the data are demodulated by using user-equipment (UE)-specific reference signals transmitted by the eNB, the control information is demodulated based on UE-specific reference signals transmitted on only one fixed antenna port n and the data is demodulated based on UE-specific reference signals transmitted on antenna ports n, . . . , (n+k−1), and the n is a natural number and the k is the number of layers used for transmission of the data.