Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-03-04
2008-10-21
Hsu, Alpus H (Department: 2619)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S349000, C370S392000, C370S401000, C370S469000, C370S474000
Reexamination Certificate
active
07440435
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.
REFERENCES:
patent: 6226277 (2001-05-01), Chuah
patent: 6532211 (2003-03-01), Rathonyi et al.
patent: 6542490 (2003-04-01), Ahmadvand et al.
patent: 6665718 (2003-12-01), Chuah et al.
patent: 6744766 (2004-06-01), Alapuranen
patent: 6842445 (2005-01-01), Ahmavaara et al.
patent: 6961349 (2005-11-01), Malomsoky et al.
patent: 7020822 (2006-03-01), Ho et al.
patent: 7054316 (2006-05-01), Cheng et al.
patent: 7085232 (2006-08-01), Raissinia et al.
patent: 7206581 (2007-04-01), Zhang et al.
patent: 7376879 (2008-05-01), Terry et al.
patent: 2002/0001296 (2002-01-01), Lee et al.
patent: 2002/0196760 (2002-12-01), Malomsoky et al.
patent: 2003/0035423 (2003-02-01), Beckmann et al.
patent: 2003/0128681 (2003-07-01), Rauschmayer
patent: 2003/0212821 (2003-11-01), Gillies et al.
patent: 2004/0246898 (2004-12-01), Peisa et al.
patent: 2005/0002363 (2005-01-01), Cheng et al.
patent: 2005/0063347 (2005-03-01), Sarkkinen et al.
patent: 2005/0135403 (2005-06-01), Ketchum et al.
patent: 2005/0135416 (2005-06-01), Ketchum et al.
Chang Hong-Sung
Chang Yong
Kim So-Hyun
Kim Tae-Won
Lim Geun-Hwi
Hsu Alpus H
Samsung Electronics Co,. Ltd
The Farrell Law Firm PC
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