Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2003-12-31
2010-12-07
Pan, Yuwen (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S437000, C370S331000
Reexamination Certificate
active
07848752
ABSTRACT:
Disclosed is a handoff processing method capable of restarting fast communications. The handoff processing method stores in a handoff buffer Host Control Interface (HCI) data and transmission data upon communications in a state where an Access Point is interlinked with an external device. Further, the method forwards the HCI data and the transmission data buffered in the handoff buffer to a new Access Point (AP) transmitting a message indicating setup completion of a connection if the message indicating setup completion of a connection with the external device is transmitted from the new AP after a handoff occurs as the external device moves. Accordingly, throughputs are not lowered despite handoff occurrences in poor wireless channel environments, so that service quality can be enhanced.
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Won Hee Lee, et al; Handoff Provisioning in Bluetooth Wireless Personal Area Networks, Internet (www.ieee.org), vol. 49, No. 4 No Nov. 2003, pp. 1004-1012.
Govind Krishnamurthi, et al; Buffer Management for Smooth Handovers in IPv6 , Network Working Group Internet Draft, Mar. 1, 2003, pp. 1-26.
Eom Doo-seop
Joo Yang-ick
Kim Yong-suk
Lee Tae-jin
Lee Won-hee
Pan Yuwen
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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