Mobility Management Function Aerial Session Release
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Solution Overview
Problem
Existing wireless communication systems lack efficient mechanisms for managing mobility and session release in response to authentication and authorization revocations, particularly for aerial services.
Innovation Solution
A method for the mobility management function (MMF) in wireless communication systems, which involves receiving a message indicating the revocation of authentication and/or authorization for an aerial service of a wireless device, and subsequently sending a release message to the device after a specified time period has expired, indicating the release of the associated session.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the MMF sends an immediate release message upon receiving authentication revocation, then system security is improved, but session availability and service continuity deteriorate
Solution Approach 1:
The system performs preliminary action by sending a notification message to the wireless device before the actual session release. This allows the device to prepare for upcoming authentication revocation, maintaining service continuity during the transition period while ensuring security is ultimately enforced.
Solution Approach 2:
The system dynamically adjusts the session release timing based on the expiration of an available time period rather than using a fixed immediate release approach. This dynamic timing allows the session to remain available for a configured duration after revocation notification, balancing security requirements with service continuity needs.
2Duration of action of moving object
If the MMF waits for the time period to expire before sending release message, then session availability is improved, but system response time to security threats worsens
Solution Approach 1:
The system sends a preliminary notification message to the wireless device indicating upcoming authentication revocation before the session is actually released. This allows the device to prepare for the revocation while the session remains available during the configured time period, effectively communicating the timing without forcing immediate termination.
3Productivity
If the system implements immediate authentication revocation handling, then security response efficiency is improved, but service continuity deteriorates
Solution Approach 1:
The system performs preliminary action by notifying the wireless device of upcoming authentication revocation before the session is actually released. This early notification allows the device to prepare for the revocation while maintaining service continuity during the available time period, thus improving security response efficiency without completely breaking service continuity.
Solution Approach 2:
The system dynamically manages the session state by maintaining availability during a configured time period after revocation notification, then transitioning to release after the period expires. This dynamic state management allows the system to respond efficiently to security requirements while preserving service continuity during the transition phase.
Data Source
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AI summary
A mobility management function receives a message indicating a revocation of an authentication and/or authorization (AA) of an aerial service of a wireless device. the mobility management function sends, to the wireless device, a release message indicating a release of the session. The mobility management function sends the release message after an expiration of a time period in which a session associated with the aerial service is available after the revocation.