发明名称 |
CALL HANDOVER BETWEEN CELLULAR COMMUNICATION SYSTEM NODES THAT SUPPORT DIFFERENT SECURITY CONTEXTS |
摘要 |
In the context of facilitating a circuit switched to packet switched handover of a call in a cellular communication system, a first node (e.g., packet switched target node) generates a security context for a client whose call is being handed over. This involves the first node receiving at least one cryptographic key from a second node (e.g., a circuit switched node supporting the existing connection) and receiving identities of security algorithms supported by the client from a third node (e.g., a packet switched node supporting the existing connection); The first node uses the at least one cryptographic key and the identities to generate the security context for the client. |
申请公布号 |
EP2810463(A1) |
申请公布日期 |
2014.12.10 |
申请号 |
EP20130702958 |
申请日期 |
2013.01.28 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
NORRMAN, KARL;WIFVESSON, MONIKA |
分类号 |
H04W12/04;H04W36/00 |
主分类号 |
H04W12/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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