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:
Dec. 24, 2013
Filed:
Dec. 08, 2004
Seok-heon Cho, Iksan, KR;
Ae-soon Park, Daejeon, KR;
Chul-sik Yoon, Seoul, KR;
Kyung-soo Kim, Daejeon, KR;
Jee Hwan Ahn, Daejeon, KR;
Seok-Heon Cho, Iksan, KR;
Ae-Soon Park, Daejeon, KR;
Chul-Sik Yoon, Seoul, KR;
Kyung-Soo Kim, Daejeon, KR;
Jee Hwan Ahn, Daejeon, KR;
Electronics and Telecommunications Research Institute, , KR;
Samsung Electronics Co., Ltd., , KR;
KT Corporation, , KR;
SK Telecom Co., Ltd, , KR;
KTFreetel Co., Ltd, , KR;
Hanaro Telecom., Inc., , KR;
Abstract
Disclosed are a method for requesting, generating and distributing a service-specific traffic encryption key in a wireless portable Internet system, an apparatus for the same, and a protocol configuration method for the same. In the present invention, a subscriber station sends a Key Request message for requesting a service-specific traffic encryption key to the base station using a PKM-REQ MAC message, and a base station analyzes the Key Request message to generate the requested service-specific traffic encryption key. Subsequently, the base station sends a Key Reply message, including the generated service-specific traffic encryption key, to the subscriber station using a PKM-RSP MAC message. If the base station fails to generate the key, the base station sends a Key Reject message, including a reason for the failure, to the subscriber station.