Enhanced key management for SRNS relocation
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United States of America Patent
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May 24, 2016
Grant Date -
May 21, 2015
app pub date -
Nov 18, 2014
filing date -
Mar 17, 2010
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Abstract
A method that comprises maintaining, in a first node serving a mobile terminal over a connection protected by at least one first key, said first key and information about the key management capabilities of the mobile terminal. Upon relocation of the mobile terminal to a second node the method includes: if, and only if, said key management capabilities indicate an enhanced key management capability supported by the mobile terminal, modifying, by said first node, the first key, thereby creating a second key; sending, from the first node to the second node, the second key; and transmitting to the second node the information about the key management capabilities of the mobile terminal.
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