Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2004-05-17
2008-03-18
Kincaid, Lester G. (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S331000, C455S436000
Reexamination Certificate
active
07346027
ABSTRACT:
A method of non-real time software download in an IP-based mobile communication system with heterogeneous access technologies is based on the session initiation protocol (SIP). For download recovery in case of handover between a first and a second access networks using different access technologies while a software download session is ongoing, the SIP user agent associated with a handovering terminal, upon detecting the handover, sends, without releasing the ongoing session, a transfer request message to a SIP proxy server that has set up and is currently managing the download session, and that server can start operations necessary in order a new session is set up with the user agent in the new location, under the control of a proxy server entrusted with managing the new session, and download is resumed from said last received packet.
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Bossoli Francesca
Micocci Stefano
Ravasio Gianluca
Kincaid Lester G.
Siemens AG
Zewari Sayed T.
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