System for ensuring encrypted communication after handover
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 21, 2012
Grant Date -
Oct 30, 2008
app pub date -
Jun 23, 2008
filing date -
Nov 28, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
During connection setup with a first radio access network, a multimode mobile station sends an unprotected initial signaling message that includes information about those encryption algorithms that the multimode mobile station supports when it communications in a second radio access network. The first radio access network saves some or all the information. Then it composes and sends an integrity-protected message that includes information about the encryption algorithms supported by the multimode mobile station in the second radio access network.
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