Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-02-21
2006-02-21
Trost, William (Department: 2683)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S432100, C370S329000, C370S331000, C370S395520, C370S913000
Reexamination Certificate
active
07003294
ABSTRACT:
Methods and apparatus are presented to reduce the number of registration requests transmitted by a mobile node to a foreign agent. Rather than always sending the re-registration request at pre-determined times before the expiry of registration lifetime, re-registration requests are transmitted only if some data transfer takes place after a time period demarcated by the previous successful registration.
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Lioy Marcello
Singhai Sandeep
Ewart James D
Godsey Sandra L.
Macek Kyong H.
Qualcomm Incorporated
Trost William
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