Patent ID: 8559374
Filing Date: 2013-10-15
Classification: H04B,H04L,H04W

Abstract:
1. A data communication method through a coordinated multi-point transmission in a wireless communication system in a multi-cell environment comprising a serving base station and a cooperative base station performing the coordinated multi-point transmission, the method comprising: receiving data through each downlink channel from the serving base station and the cooperative base station; and demodulating the received data, wherein each of the data received from the serving base station and the cooperative base station comprises a predetermined reference signal and data resource element, and a transmit diversity is applied to the data resource element of the serving base station and the cooperative base station, respectively, through pairing, wherein an RF combining scheme is used for a symbol including the predetermined reference signal of the data transferred from the serving base station and the cooperative base station, respectively, wherein a space frequency block code (SFBC) scheme is used for a symbol that does not include the predetermined reference signal of the data transferred from the serving base station and the cooperative base station, respectively, wherein the demodulation of the space frequency block code (SFBC) uses a demodulation reference signal, and wherein a coefficient used to combine for the demodulation of the RF combining is transferred from the serving base station or the cooperative base station in the demodulating of the received data.