Safe switching method for user terminal in wireless metropolitan area network (WMAN)
A wireless metropolitan area network and user terminal technology, applied in the field of user terminal switching in wireless metropolitan area network, can solve problems such as deceiving user terminals, failing to provide user terminals with base station authentication, security restrictions on promotion and development, etc.
Inactive Publication Date: 2011-05-04
GCI SCI & TECH
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Problems solved by technology
However, safety issues have always restricted its further promotion and development.
The main disadvantage of IEEE 802.16d is that it only provides the one-way authentication of the base station to the user terminal, but does not provide the authentication of the user terminal to the base station. It is very easy for the counterfeit base station to deceive the user terminal
However, WMAN-SA only defines functions such as identity authentication, key management, data encryption, data authentication, and replay protection, and does not include specific solutions for access gateways to manage user switching
Method used
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[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] The solution of the present invention is: the system includes an access gateway, a current base station, a target base station and a user terminal. The access based on the WMAN-SA protocol is completed by the access gateway, the user terminal and the authentication server. The base station is only responsible for forwarding the message, and the base station is managed by the access gateway. The user terminal is switched from the current base station to the target base station, the access gateway notifies the current base station to delete the user terminal, and the access gateway notifies the target base station to join the user terminal.
[0033] like image 3 Shown is a flow diagram of an embodiment of the invention.
[0034] Step S101: The target base station receives the handover request information sent by the user termi...
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The invention relates to the technical field of wireless metropolitan area networks (WMAN), in particular to a safe switching method for a user terminal in a wireless metropolitan area network (WMAN). The safe switching method comprises the following steps: sending a switching request message to the access gateway of a target base station by the user terminal; returning a switching response message to the user terminal by the access gateway via the target base station; sending a request message to the target base station for allowing the user terminal to join in by the access gateway; and receiving the request message for allowing the user terminal to join in by the target base station, configuring a port for carrying out safe transmission for the user terminal by the target base station, and returning a response message for allowing the user terminal to join in to the access gateway by the target base station. The safe switching method is used to realize that the user terminal can be safely and fast switched from one base station to the other base station under the same access gateway in the WMAN.
Description
technical field [0001] The invention relates to the technical field of wireless metropolitan area network, in particular to a safe user terminal switching method of the wireless metropolitan area network. Background technique [0002] As an important development direction of future wireless access technology, IEEE 802.16 wireless metropolitan area network has attracted widespread attention from all walks of life. However, safety issues have always restricted its further promotion and development. IEEE 802.16d defines an authentication protocol based on the public key encryption algorithm (RSA) and digital certificates, which can realize the authentication of the user terminal by the base station. The main disadvantage of IEEE 802.16d is that it only provides one-way authentication from the base station to the user terminal, but does not provide the authentication from the user terminal to the base station. It is very easy to deceive the user terminal by counterfeiting the b...
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IPC IPC(8): H04W12/08H04W36/08H04W84/10
Inventor 王胜男林凡张永强
Owner GCI SCI & TECH