METHOD AND LINE RESET SYSTEM FOR RESETTING LINE IN WIRELESS ACCESS NETWORK

摘要

Provided is a line resetting system comprising: a DU group which includes one or more DUs, wherein each of the DUs receives a first wireless signal, and generates and outputs a first optical signal including the first wireless signal; an RRU group which includes one or more RRUs, wherein each of the RRUs receives a second optical signal, coverts the second optical signal into a second wireless signal, and transmits the second wireless signal to a terminal; a monitoring/control device which monitors the state of a connection line, which is previously set between the DU group and the RRU group, and generates a control signal to reset the connection line based on at least one piece of information on whether a preset time arrives and whether a reset requesting signal is inputted; and a switching device which receives and converts the first optical signal to an electric signal, resets the connection line based on the control signal, converts the electric signal into the second optical signal based on the state of the reset connection line, and transmits the second optical signal to the RRU group.