Authentication system and method having mobility in public wireless local area network
First Claim
1. An authentication system having mobility in a public wireless LAN which processes authentication and charging through an authentication server of a wireless network operator, comprising:
- an access point wirelessly connected to a wireless terminal, for outputting an authentication request message or charging request message added with information of the wireless terminal and requesting authentication and charging of the wireless terminal, and receiving an authentication response message and controlling data transmission and reception of the authenticated wireless terminal; and
an access point manager for receiving the authentication request message for the wireless terminal from the access point, confirming whether the wireless terminal has already been authenticated, transmitting the authentication request message to the authentication server of the wireless network operator and transmitting the received authentication response message to the access point when the wireless terminal has not been authenticated, and transmitting the authentication response message to the access point on the basis of the registered authentication information when the wireless terminal has been authenticated.
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Accused Products
Abstract
The present invention discloses an authentication system and method having mobility in a public wireless LAN. The authentication system includes an access point for requesting authentication of a wireless terminal to an access point manager, enabling data transmission and reception of the authenticated wireless terminal, and requesting the access point manager to charge the wireless terminal, and the access point manager for authenticating the wireless terminal which has already been authenticated on the basis of previously-registered registration information upon the request of the access point, authenticating the wireless terminal which has not been registered through an authentication server of a wireless network operator, and transmitting the authentication information to the access point. As a result, the wireless terminal can continuously access the network through the access points of the same subnet as well as different subnet without re-authentication, thereby achieving mobility and processing charging.
37 Citations
25 Claims
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1. An authentication system having mobility in a public wireless LAN which processes authentication and charging through an authentication server of a wireless network operator, comprising:
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an access point wirelessly connected to a wireless terminal, for outputting an authentication request message or charging request message added with information of the wireless terminal and requesting authentication and charging of the wireless terminal, and receiving an authentication response message and controlling data transmission and reception of the authenticated wireless terminal; and
an access point manager for receiving the authentication request message for the wireless terminal from the access point, confirming whether the wireless terminal has already been authenticated, transmitting the authentication request message to the authentication server of the wireless network operator and transmitting the received authentication response message to the access point when the wireless terminal has not been authenticated, and transmitting the authentication response message to the access point on the basis of the registered authentication information when the wireless terminal has been authenticated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An authentication method having mobility in a public wireless LAN which receives an authentication or charging request message for a wireless terminal from an access point and processes authentication and charging through an authentication server of a wireless network operator, comprising:
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an authentication step for receiving the authentication request message from the access point, authenticating the wireless terminal on the basis of the authentication request message, and transmitting an authentication response message to the corresponding access point; and
a charging step for receiving the charging request message from the access point and transmitting the received charging request message to the authentication server, and receiving a charging request response message from the authentication server and transmitting the received charging request response message to the access point. - View Dependent Claims (18, 19, 20, 21)
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22. An authentication method having mobility in a public wireless LAN where an access point requests authentication and charging of a wireless terminal through an access point manager, comprising:
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a step for the access point to be wirelessly connected to the wireless terminal;
an authentication request step for adding information of the wireless terminal to an authentication request message and transmitting it to the access point manager; and
a step for receiving an authentication response message to the authentication request message transmitted in the authentication request step from the access point manager, and selectively requesting the access point manager to start charging on the basis of the authentication information included in the authentication response message. - View Dependent Claims (23, 24, 25)
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Specification