Patent ID: 7420925

Claim:
A duplex system having a first wireless LAN base station and a second wireless LAN base station, wherein each of the first wireless LAN base station and the second wireless LAN base station comprises: a fault detecting section for detecting a fault of the local wireless LAN base station in which it resides and generating a fault detection signal; a duplex control section for storing an address of a duplex party of the wireless LAN base station, sending and receiving a control signal to and from the duplex party, and controlling each of sections according to the control signal; a power control section for placing the local wireless LAN base station in an active state or a standby state according to a command received from the duplex control section; and a setting control section for storing setting of the local wireless LAN base station and sending and receiving the setting of the local wireless LAN base station according to a command received from the duplex control section, wherein when the first wireless LAN base station which is in the active state detects a fault, the first wireless LAN base station is configured to send an activation request to the second wireless LAN base station which is in the standby state, wherein when the first wireless LAN base station confirms that the second wireless LAN base station has been placed in the active state, the first wireless LAN base station is configured to send setting thereof to the second wireless LAN base station, and wherein when the first wireless LAN base station confirms that the setting of the second wireless LAN base station is the same as the setting of the first wireless LAN base station, the first wireless LAN base station is configured to be placed in the standby state.