The invention discloses a method of communication between the base station and a relay system with relay station system and device, in order to solve the existing technology used by GP OFDM symbols occupy more resources, affecting the system performance problems. The base station sends a MBSFN sub frame, the frame includes three regions connected sequence in time domain; the first region of the OFDM symbol PDCCH sends the signal, second regional free area within the third regions of OFDM signaling and RN transmits the data symbols to return control, determine the OFDM symbol third in the region ahead of time, and send the third regions of the OFDM symbol, because send ahead in the embodiment of the invention in sending control signaling and return data, ensure that RN can realize the transfer of the state in the data sub frame, at the same time as between the RN and the base station data sub frame synchronization to ensure the synchronization of the system.
【技术实现步骤摘要】
【技术保护点】
1.一种中继系统中实现基站与中继站之间通信的方法,其特征在于,包括:基站发送单频网多播/广播MBSFN子帧,该MBSFN子帧在时域上包括顺序连接的三个区域;其中,基站采用第一个区域内的正交频分复用OFDM符号向终端发送物理下行控制信道PDCCH信号;第二个区域为空闲区域,包括至少一个OFDM符号;基站采用第三个区域内的OFDM符号向中继站发送回传控制信令和数据,其中,基站确定发送所述第三个区域内的OFDM符号的时间提前量,根据确定的所述时间提前量发送所述第三个区域内的OFDM符号。
【技术特征摘要】
【专利技术属性】
技术研发人员:王竞,刘光毅,沈晓冬,
申请(专利权)人:中国移动通信集团公司,
类型:发明
国别省市:11[中国|北京]
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