Communication in a wireless communications network when a mobile computer terminal may be unreachable
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 17, 2007
Grant Date -
N/A
app pub date -
Oct 10, 2000
filing date -
Oct 5, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for communication between a mobile computer terminal and a host computer in a system in which it is necessary for the mobile computer terminal to send a message to the host computer at a particular time. The specific time at which the mobile computer terminal must send a message to the host computer is first determined. Then, a timer or clock is programmed to wake up the mobile computer terminal at the specific time. A sleep mode may be entered, which may be interrupted at the specific time to send the message. This will normally allow a mobile computer terminal to maintain its lease on an IP address despite being out of range of a wireless network.
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