Recovery techniques in mobile networks
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Aug 2, 2016
filing date -
Mar 12, 2001
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A technique for protecting location information of a subscriber in a mobile network is disclosed. A User Mobility Server (UMS) receives a first query from a first call state control function (CSCF). The UMS transmits a call setup and a subscriber identity to a servicing-call state control function (S-CSCF). The S-CSCF may have no record of the subscriber identity due to a restart are some other event. The UMS receives a second query from the S-CSCF based in part of the subscriber identity. The UMS transmits a home address of a mobile station to the S-CSCF. The UMS may also transmit a profile download to the S-CSCF.
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