Method, system and apparatus for negotiating security capabilities during movement of UE
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United States of America Patent
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Feb 14, 2017
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N/A
app pub date -
Jun 2, 2015
filing date -
Sep 29, 2007
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Abstract
A method for negotiating security capabilities during movement of a User Equipment (UE) includes the following steps: a target network entity receives a Routing Area Update (RAU) Request from the UE; the entity obtains Authentication Vector (AV)-related keys deduced according to a root key, and sends the selected security algorithm to the UE; and the UE deduces the AV-related keys according to the root key of the UE. A system, SGSN, and MME for negotiating security capabilities during movement of a UE are also disclosed. The present invention is applicable to security capability negotiation between the UE and the network.
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