5G Access Categories for Mobile-Originated Location Requests
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Solution Overview
Problem
Existing 5G networks lack a defined access control mechanism for mobile originated location requests (MO-LR), which are assumed to be initiated by the network, leading to potential inefficiencies and unnecessary transitions to connected mode during location procedures that can take a considerable amount of time.
Innovation Solution
Implement a modified unified access control framework that categorizes MO-LR requests differently by identifying specific events and procedures within the 5GMM connection management, allowing for access category assignment based on ongoing MO-LR procedures to avoid unnecessary access checks and transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control checks are performed for MO-LR requests, then access security is improved, but unnecessary transitions to connected mode occur and procedure efficiency deteriorates
Solution Approach 1:
The patent segments access control into different categories (first access control category for MO-LR, second access control category for other services). By segmenting the access control mechanism, the system can apply different control rules to different service types, allowing MO-LR requests to bypass unnecessary access checks while maintaining security for other services.
Solution Approach 2:
The patent applies local quality by assigning specific access control characteristics to specific service types. MO-LR requests are assigned a first access control category with relaxed control rules, while other services receive a second access control category with standard control rules. This localized differentiation optimizes efficiency for location requests without compromising overall system security.
2Reliability
If access control checks are performed for MO-LR requests, then access control is improved, but time loss increases due to unnecessary transitions
Solution Approach 1:
The patent implements preliminary action by pre-configuring the UE with access control categories and rules before MO-LR procedures begin. The UE is provided with indication information that specifies which access control category applies to MO-LR requests, allowing it to make immediate, informed decisions about access control without time-consuming transitions or checks during the actual location request procedure.
3Use of energy by moving object
If UE remains in idle mode during MO-LR, then energy consumption is reduced, but access control security may be compromised
Solution Approach 1:
The patent introduces an intermediary mechanism in the form of access control indication information that mediates between the UE's idle mode operation and network security requirements. This intermediary allows the network to convey access control rules to the UE without requiring the UE to transition to connected mode, enabling security-maintaining idle mode operation through information exchange rather than full connection establishment.
Data Source
AI summary
A method and apparatus for providing access control for mobile originated location requests, particularly, but not limited to, in 5G networks. An access attempt message triggered by a mobile originated location request or other 5GMM procedure may be assigned an access category based on whether a mobile originated location request procedure is ongoing or not ongoing. The message assigned the access category may be an LTE positioning protocol message. Possible access categories may include, for example, an MT_acc category for non-ongoing procedures and an MO_sig category for ongoing procedures. An access control check may be performed unless the mobile device switches from an idle to a connected mode.