5G NAS Signaling Security Mode Command Additional Information Element
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Solution Overview
Problem
Current 5G mobile network specifications do not include information elements in the security mode command message to provide horizontal derivation parameters or Anti-Bidding down Between Architectures parameters to user equipment (UE), limiting the network's ability to enhance security capabilities through NAS signaling.
Innovation Solution
Incorporating a new information element (IE) in the security mode command message to transmit additional 5G security parameters, such as horizontal derivation and ABBA parameters, between the network and UE, allowing for enhanced security mode control procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the security mode command message follows current 3GPP specification without additional information elements, then the message structure remains simple and compatible with existing standards, but the network cannot provide horizontal derivation parameters or ABBA parameters to the UE, limiting security capability enhancement
Solution Approach 1:
The patent segments the security parameter transmission by introducing a separate additional information element within the security mode command message. This additional IE is structured with its own identifier, presence indicator, and parameter fields, allowing the base message structure to remain compatible while adding security functionality through a distinct, modular segment.
Solution Approach 2:
The patent implements nesting by placing the additional 5G security parameter information element inside the existing security mode command message structure. The additional IE is nested within the broader message framework, containing its own nested structure with identifier, presence indicator, and parameter fields, allowing multiple levels of organization without disrupting the outer message structure.
2Reliability
If additional 5G security parameter information elements are incorporated in the security mode command message, then the network can transmit horizontal derivation parameters and ABBA parameters to enhance security, but the message structure becomes more complex and deviates from current 3GPP specification
Solution Approach 1:
The patent implements dynamics through the presence indicator field in the additional information element. The network can dynamically include or exclude the additional 5G security parameters based on whether they are needed for the current communication scenario. This allows the message structure to adapt its complexity based on operational requirements, processing only what is necessary.
Solution Approach 2:
The patent enables parameter changes by introducing an identifier field and presence indicator that allow the receiver to dynamically determine which parameters are present and how to process them. The system can change the effective structure of the message based on the values of these control parameters, allowing flexible adaptation to different security requirements.
Data Source
AI summary
Examples pertaining to indication of additional security capabilities using non-access stratum (NAS) signaling in 5th Generation (5G) mobile communications are described. A processor of an apparatus (e.g., a user equipment (UE)) transmits an initial NAS message to a communication entity of a 5G mobile network. The processor then receives a message from the communication entity responsive to the transmitting, the message comprising an additional 5G security parameter information element (IE). The processor proceeds to perform a security mode control procedure using information contained in the additional 5G security parameter IE pertaining to at least one 5G security parameter.