Securing quality of service (QoS) according to type of wireless local area network (WLAN) service

An Access Point (AP), comprising:

• an authenticated terminal list management module adapted to manage access category list information of a user terminal authenticated by an authentication server of a wireless network;
• and
• a control module adapted to compare access category information contained in a Quality of Service (QoS) control field of a packet received from the user terminal to access category information of the user terminal on the access category list to control access of the corresponding user terminal to the wireless network,
• wherein the access category information comprises at least priority information that involves a content of a fee system with one of AC_VO (Access Category voice), AC_VI (Access Category video), AC_BK (Access Category background), and AC_BE (Access Category best effort),
• wherein the authenticated terminal list management module is adapted to manage a terminal list table by receiving access category information of an authorized QoS STAtion (QSTA) from the authentication server, adding the access category information to the user terminal list table, and deleting a disassociated user terminal from the terminal list table, and
• wherein the control module is adapted to transmit the preset access category information to the corresponding terminal and to then sequentially increase a mismatch counter value in response to the access category information contained in a QoS control field of the packet received from the user terminal not matching the access category information of the terminal stored in the terminal list table.

A wireless network access control method, comprising” determining a priority for an access category of a wireless network service requested by a user to perform an authentication procedure in response to a user terminal requesting authentication for access to a wireless network;

• receiving access category information of an authenticated user terminal and adding the access category information to a user terminal list table;
• comparing access category information contained in a packet received from the user terminal to access category information of the terminal previously stored in the user terminal list table;
• and
• controlling access of the user terminal to the wireless network in accordance with a result of the comparison,
• wherein the access category information comprises at least priority information that involves a content of a fee system with one of AC_VO (Access Category voice), AC_VI (Access Category video), AC_BK (Access Category background), and AC_BE (Access Category best effort),
• wherein preset access category information is transmitted to the corresponding user terminal during the authentication procedure with the authentication server in response to the access category information contained in a Quality of Service (QoS) control field of the packet received from the user terminal not matching the access category information of the user terminal stored in the user terminal list table, and
• to then sequentially increase a mismatch counter value in response to the access category information contained in a QoS control field of the packet received from the user terminal.