FIELD: physics.
SUBSTANCE: invention relates to wireless communication. Support network equipment is configured to switch to use of new security context of layer without access (NAS) between user equipment and equipment of backbone network. Core network equipment during or in communication with a handover procedure notifies that a new NAS security context between user equipment and support network equipment shall be used as a basis for access layer security context (AS) between user equipment and radio access network equipment.
EFFECT: technical result consists in reduction of control alarm.
25 cl, 33 dwg
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