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:
Apr. 10, 2012
Filed:
Oct. 27, 2004
Chul-sik Yoon, Daejeon, KR;
Chang-wahn Yu, Daejeon, KR;
Kun-min Yeo, Daejeon, KR;
Byung-han Ryu, Daejeon, KR;
Chul-Sik Yoon, Daejeon, KR;
Chang-Wahn Yu, Daejeon, KR;
Kun-Min Yeo, Daejeon, KR;
Byung-Han Ryu, Daejeon, KR;
Electronics and Telecommunications Research Institute, , KR;
Samsung Electronics Co., Ltd., , KR;
KT Corporation, , KR;
KTFreetel Co., Ltd., , KR;
Hanaro Telecom., Inc., , KR;
SK Telecom Co., Ltd., , KR;
Abstract
Disclosed is a method for a preamble-based bandwidth request. The present invention enables state control of a subscriber station based on the latest environment in a portable Internet system requesting a bandwidth using a preamble, and hence allows a subsequent more efficient transmission of user data. In addition, the present invention provides information for discrimination of the subscriber station transmitting the preamble as well as state control information of the subscriber station to the base station during a preamble-based bandwidth request by the subscriber station, and enables the base station to discriminate the subscriber station in the next time of data transmission with the subscriber station.