Data transmission method and device, computer equipment and storage medium

The invention relates to a data transmission method and device, computer equipment and a storage medium. The method comprises the following steps: when downlink data is received, copying the downlink data according to a preset number of copies to obtain at least one piece of copied downlink data, respectively carrying out downlink data processing on the downlink data and each piece of copied downlink data, and sending the processed downlink data and each piece of copied downlink data; and the at least two paths of uplink data are sent after being subjected to uplink data processing and merging processing in sequence. According to the method, the downlink data to be sent is copied and transmitted, and the received multi-path data is merged, so that the original single-path data transmission mechanism is converted into a multi-path data transmission mechanism, and the method can be applied to the RRU of the existing multi-antenna single-transmitting single-receiving SISO configuration to perform multi-path data