Network Entity Access Loss Detection Using Periodic Monitoring
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently processing access loss of user equipment (UE) across networks, leading to increased signaling overhead and delayed detection of access loss, particularly in scenarios where UE operates in Single Connection Mode (SCM) or Transparent SCM (TSCM).
Innovation Solution
A method is introduced where a network entity receives measurement reports from UE operating on multiple networks, determines access loss by monitoring acknowledgement signals, and transmits this information to other network entities, with conditions set to minimize signaling overhead and ensure accurate detection, including verifying the network entity context and subscription information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the network entity continuously monitors ACK signals to detect access loss, then the detection accuracy is improved, but the signaling overhead increases
Solution Approach 1:
The patent changes the monitoring parameter from continuous ACK signal monitoring to periodic monitoring based on a predetermined time threshold. The network entity determines access loss when no ACK is received within this threshold period, transforming continuous monitoring into event-driven monitoring that reduces signaling overhead while maintaining detection accuracy.
Solution Approach 2:
The patent applies partial monitoring by only checking for ACK signals in specific scenarios (when measurement reports indicate handover is not required) rather than continuously monitoring all transmissions. This selective monitoring approach reduces the quantity of signaling operations while preserving essential detection capability.
2Loss of information
If the network entity transmits access loss information to all network entities, then the information completeness is improved, but the signaling overhead increases
Solution Approach 1:
The patent extracts only the essential access loss information and transmits it selectively to specific network entities (second network entity operating on the first network) rather than broadcasting to all entities. This extraction approach maintains information completeness for critical entities while reducing overall signaling overhead.
Solution Approach 2:
The patent segments the network into different entities operating on different networks (first network and second network) and transmits access loss information only to the relevant second network entity. This segmentation allows targeted information distribution that maintains completeness for affected entities while minimizing redundant transmissions.
3Reliability
If the network entity sets strict conditions for dropping access loss, then the detection reliability is improved, but the response time increases
Solution Approach 1:
The patent establishes predetermined time thresholds and conditions in advance for determining access loss. By pre-configuring these criteria, the network entity can quickly evaluate whether access loss has occurred without complex real-time analysis, thus maintaining reliability while reducing detection time.
Solution Approach 2:
The patent changes the evaluation parameters from complex multi-condition checks to simpler time-threshold-based determination. The network entity compares the time since last ACK receipt against a predetermined threshold, transforming complex reliability checks into fast temporal comparisons that reduce detection time while maintaining adequate reliability.
Data Source
AI summary
Disclosed are a method for processing a loss of access wherein a first network entity of a first network determines, from a measurement report of a terminal operating by SCM or TSCM, a loss of access of the terminal to the first network, and notifies a second network entity of the loss of access, and a method for processing a loss of access wherein, when the loss of access of the terminal is received, the second network entity processes the loss of access according to whether a condition for dropping a loss of access is satisfied.