Patent ID: 7787425

Claim:
An information update method for access points (APs), the method comprising: connecting a hand-held terminal to one of the APs when the hand-held terminal is authenticated by the one of the APs; obtaining, from an administration server by the APs, information of all APs connected to the administration server via a local area network (LAN) and managed by the administration server; and transmitting the obtained information from the APs to the hand-held terminal to enable the hand-held terminal to update pre-stored information and store the obtained information, wherein connecting the hand-held terminal comprises: requesting a connection to the one of the APs by the hand-held terminal, requesting information by the one of the APs authenticating the requested connection from the hand-held terminal in response to the connection request, transmitting the requested information from the hand-held terminal to the one of the APs in response to the information request, and authenticating the requested connection such that the one of the APs connects to the hand-held terminal if the requested information transmitted by the hand-held terminal matches information pre-stored in the one of the APs.