Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2011-03-15
2011-03-15
Afshar, Kamran (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S432100, C455S440000, C455S439000, C455S452200, C370S331000, C370S397000, C370S395520, C370S399000, C709S229000, C709S230000, C713S155000, C713S161000
Reexamination Certificate
active
07907948
ABSTRACT:
A method, a correspondent node and a mobile node provide anonymity and unlinkability to a mobile node in a session with a correspondent node. Sequence values, calculated based on secret data, are added to updates sent from the mobile node towards the correspondent node and are used by the correspondent node to authenticate updates from the mobile node. A home address of the mobile node is not explicitly disclosed. An expected care-of address is calculated at the correspondent node and used by the correspondent node to send data packets to the mobile node.
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Haddad Wassim
Krishnan Suresh
Afshar Kamran
Sarwar Babar
Telefonaktiebolaget L M Ericsson (publ)
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