GEORGE NEIL,GEORGE NEIL,FORREST JAMES OWEN,FORREST JAMES OWEN,BURTON REBECCA CLAIRE,BURTON REBECCA CLAIRE,AAKEROY CHRISTER BJÖRN,AAKEROY CHRISTER BJÖRN
申请号：
PL11714597
公开号：
PL2557925T3
申请日:
2011.04.06
申请国别(地区):
PL
年份:
2016
代理人:
摘要：
A cellular communications system is provided in which a user device maintains and provides a last non-emergency security context to a core network when moving from a network that provided restricted services to a network that provides unrestricted services. In this way, re-authentication of the user device can be avoided in the network that provided unrestricted services. Emergency calls can always be made.
