RAN Notification Area Configuration Using Temporary Tracking Areas
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Solution Overview
Problem
Current mobile communication networks face challenges in efficiently integrating temporary tracking areas into the radio access network notification area, particularly when a mobile device is in the inactive state, leading to inefficiencies in location tracking and resource management.
Innovation Solution
A method for configuring the Radio Access Network (RAN) Notification Area (RNA) by receiving timing information for temporary Tracking Areas (TAs) and dynamically adding or removing cells and TAs based on this information, ensuring the RNA remains a subset of the registration area and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If temporary tracking areas are integrated into the RAN Notification Area, then the ability to locate mobile devices in inactive state is improved, but signaling overhead and resource wastage increase
Solution Approach 1:
The network pre-configures timing information for temporary tracking areas before the mobile device enters inactive state. This allows the device to proactively add/remove TAs from RNA at predetermined times without needing network signaling during the inactive state, reducing signaling overhead while maintaining location tracking capability
Solution Approach 2:
The RAN Notification Area is made dynamic by allowing temporary tracking areas to be added or removed based on timing information. The RNA configuration changes automatically at predetermined times to reflect the mobile device's expected presence in temporary TAs, optimizing the balance between location tracking and signaling overhead
2Measurement precision
If temporary tracking areas are added to the RAN Notification Area, then location tracking accuracy is improved, but resource management efficiency deteriorates
Solution Approach 1:
Timing information for temporary tracking areas is provided in advance, allowing the mobile device to automatically manage RNA configuration without continuous network intervention. This preliminary configuration enables accurate location tracking while reducing network resource consumption for RNA management
Solution Approach 2:
Temporary tracking areas are dynamically added to and removed from the RAN Notification Area based on timing information. The device recovers network resources by automatically removing TAs when their temporary validity period expires, preventing resource wastage while maintaining tracking accuracy during active periods
Data Source
AI summary
A method performed at an apparatus for configuration of a Radio Access Network (RAN) Notification Area (RNA) is provided. The method comprises receiving a message including RNA information to be temporarily added to the RNA, and timing information associated to the RNA information. The method further comprises configuring the RNA by temporarily adding the RNA information to the RNA based on the timing information.