Handoff method and apparatus for mobile wireless workstation

Details Handoff method and apparatus for mobile wireless workstation Handoff method and apparatus for mobile wireless workstation

1990-10-29

1993-01-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 951, 455 332, 455 541, 455 542, 455 561, 34082544, H04B 726, H04L 1228

Patent

active

051812002

ABSTRACT:
In response to a data processor (10) breaking a wireless link with a first, original, link adapter (12) a first step deletes the data processor from an active group of the first link adapter and re-directs network datagrams intended for the data processor to a spooler. In response to the data processor subsequently establishing a link with a second, new, link adapter a next step adds the data processor to the active group associated with the second link adapter and transmits stored datagrams in a First In/First Out order from the spooler to the second link adapter for transmission to the data processor. In response to the storage device transmitting all of the stored datagrams to the second link adapter the method includes the further steps of terminating the re-direction of datagrams from the first link adapter to the storage device and, receiving, from the network with the second link adapter, further datagrams addressed to the data processor.

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"Wireless Connection Between a Controller and a Plurality of Terminals" by F. Closs et al. IBM Technical Disclosure Bulletin vol. 20, No. 7 Dec. 1977.
"Infrared Microbroadcasting Network for In-House Data Communication", F. Gfeller IBM Technical Disclosure Bulletin, vol. 24, No. 8, Jan. 1982.

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