A wireless security establishment procedure using dual-layer (NAS and AS) security mode commands with integrity protection and ciphering algorithms for 5G networks.

Patentradars sammanfattning

The invention relates to security mode command procedures in 5G/NR networks that establish both NAS (Non-Access Stratum) and AS (Access Stratum) security contexts. The system implements a coordinated handshake between user equipment (UE) and network nodes (AMF/gNB) to activate integrity protection and ciphering algorithms in sequential phases, ensuring secure uplink and downlink communication through MAC-I verification and cryptographic algorithm negotiation.

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