- 专利标题： Methods, apparatuses, computer programs and carriers for security management before handover from 5G to 4G system
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申请号： US18108523申请日： 2023-02-10
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公开(公告)号： US11963000B2公开(公告)日： 2024-04-16
- 发明人: Monica Wifvesson , Noamen Ben Henda , Christine Jost , Vesa Lehtovirta
- 申请人： Telefonaktiebolaget LM Ericsson (publ)
- 申请人地址： SE Stockholm
- 专利权人： Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人： Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人地址： SE Stockholm
- 主分类号： H04L9/00
- IPC分类号： H04L9/00 ; H04L9/08 ; H04W12/041 ; H04W12/0433 ; H04W36/00 ; H04W36/14 ; H04W12/00
摘要：
A key management is provided that enables security activation before handing over a user equipment from a source 5G wireless communication system, i.e., a Next Generation System (NGS), to a target 4G wireless communication system, i.e., a Evolved Packet System (EPS)/Long Term Evolution (LTE). The key management achieves backward security, i.e., prevents the target 4G wireless communication system from getting knowledge of 5G security information used in the source 5G wireless communication system.
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