Underground distributed communication method based on priority of base station nodes

The invention discloses an underground distributed communication method based on base station node priorities, and belongs to the field of wireless communication. The problems that a traditional centralized antenna base station cannot achieve uniform coverage of underground communication services and the underground communication rate is low are solved. By arranging the distributed base station nodes, uniform coverage of underground communication services can be achieved, and the underground mobile user terminals needing to be served are used for sending pilot frequency sequences to the distributed base station nodes to obtain uplink channel state information; then, the distributed base station nodes transmit uplink channel state information to the ground control system through an optical fiber network, and the ground control system selects the base station nodes to carry out channel calibration; and finally, the ground control system broadcasts the information to each distributed base station node to complet