부산대학교 도서관

Power grid control services can only be carried on private networks, such as wireless private networks or 5G network slices. Wireless private networks have high construction costs and are difficult to scale. Due to the deterioration of wireless signal quality, 5G network slice may fall back to 4G network. Therefore, it is necessary to study and propose a transmission scheme for power grid control services facing any network environment to ensure the security and reliability of control services. This paper proposes a transmission method for power grid control services based on 5G wireless air interface quality monitoring. Through real-time monitoring and link detection of wireless air interface signals, it can ensure that the blocking control function is notified to the power grid control terminal when the 5G network slice does not meet the control service transmission conditions. The scheme proposed in this paper provides an effective means for the power network control terminal to decide whether to block the control function according to the network state, to sense the deterioration of wireless air interface quality in time and to select the attached cell.