The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Dec. 27, 2006
Jay Xiong, Acton, MA (US);
Shi Baw Ch'ng, North Billerica, MA (US);
Jay Xiong, Acton, MA (US);
Shi Baw Ch'ng, North Billerica, MA (US);
Airvana, Corp., Chelmsford, MA (US);
Abstract
A method includes sending a first authentication challenge from an authenticator to an access terminal, and receiving, at the authenticator, a first return message from the access terminal that includes an identifier of the access terminal and a response to the first challenge. A second authentication challenge is sent from the authenticator to the access terminal, in which the second authentication challenge is determined by an authentication server based in part on the identifier of the access terminal previously received along with the response to the first challenge. The authenticator receives a second return message from the access terminal that includes a response to the second authentication challenge.