SIGNAL TRANSMISSION PROCESSING METHOD AND APPARATUS AND DISTRIBUTED BASE STATION

According to the embodiments of the present invention there are provided a signal transmission processing method and apparatus and a distributed base station are provided. The distributed base station includes a Base Band Unit (BBU) and a Remote Radio Unit (RRU) at least one channel of interface signals of a distributed base station that are sent by one of the BBU and the RRU are obtained ; then are performed optical transport network (OTN) electrical layer multiplexing through encapsulation to generate OTN signal frames; and performing electro-optic conversion to generate a channel of optical signals and transmit the optical signals. On the side of the other of the BBU and RRU, the optical signals are received and the interface signals therein are recovered and then sent to the other BBU and RRU. The present invention can improve the efficiency of signal transmission.