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:
Oct. 21, 2008
Filed:
Mar. 04, 2005
Geun-hwi Lim, Seongnam-si, KR;
Tae-won Kim, Yongin-si, KR;
Hong-sung Chang, Suwon-si, KR;
Jae-jeong Shim, Seoul, KR;
Jung-shin Park, Seoul, KR;
Yong Chang, Seongnam-si, KR;
So-hyun Kim, Suwon-si, KR;
Seung-il Yoon, Seongnam-si, KR;
Yeong-moon Son, Anyang-si, KR;
Geun-Hwi Lim, Seongnam-si, KR;
Tae-Won Kim, Yongin-si, KR;
Hong-Sung Chang, Suwon-si, KR;
Jae-Jeong Shim, Seoul, KR;
Jung-Shin Park, Seoul, KR;
Yong Chang, Seongnam-si, KR;
So-Hyun Kim, Suwon-si, KR;
Seung-Il Yoon, Seongnam-si, KR;
Yeong-Moon Son, Anyang-si, KR;
Samsung Electronics Co., Ltd, , KR;
Abstract
A divided Media Access Control (MAC) protocol structure, a data transmission and reception method, and a handover method and system using the structure in a wireless communication system for efficiently managing session information in handover of an MSS (Mobile Subscriber Station). In the MAC protocol structure, a MAC is divided into a MAC-high layer and a MAC-low layer. The MAC-high layer performs session information-related functions and the MAC-low layer performs functions sensitive to a time delay in relation to handover of an MSS. In the handover method, when an MSS in the wireless communication system performs handover between Access Points (APs), session information is managed at a fixed position by an Access Point Controller (APC) including an MAC-high layer or a serving AP. Therefore, the system load can be reduced and communication quality can be improved.