The method includes: at the destination RE side, sets common timing reference for upstream and downstream output processing reference point for use in processing data; the REC loads the download data into the downstream CPRI frame and sends it out in order to make the downstream data in basic frame appointed by CPRI frame to be loaded into an appoint location at the time of arriving the antenna interface; the destination RE extracts the downstream data from downstream CPRI frame at the downstream data processing reference point, and sends it out by local antenna; the destination RE extracts the received upstream data and loads them in turn into the upstream CRRI frame at the upstream output processing reference point in order to make data at the place appointed by radio frame in upstream of antenna interface to be loaded into the basic frame appointed by upstream CPRI frame; sends it to REC; the REC keeps original time interval and sequence in the received CPRI frame and sends it to multi-path searching unit. |