Patent ID: 8479270
Filing Date: 2013-07-02
Classification: H04L

Abstract:
1. A method of sharing information for identifying an authorization key (AK) with a base station in a subscriber station, the method comprising: at the subscriber station, sharing a root key with the base station by performing an authentication with the base station; at the subscriber station, sharing the AK derived from the root key with the base station; at the subscriber station, sharing an AK sequence number of the AK with the base station; and at the subscriber station, sharing an AK identifier (AKID) of the AK with the base station, wherein the AK sequence number is generated at the subscriber station from a sequence number of the root key, and wherein the AKID is generated at the subscriber station from a parameter comprising the AK, the AK sequence number, a medium access control (MAC) address of the subscriber station, and a base station identifier (BSID) of the base station.