Dynamic Mobility Signaling Across Terrestrial and Non-Terrestrial Networks
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Solution Overview
Problem
Current mobility management solutions in cellular networks are inefficient for multi-tier wireless communication networks, particularly when integrating terrestrial and non-terrestrial devices, as they consume significant time and power, and cause 'ping-pong effects' due to frequent cell transitions.
Innovation Solution
Implement dynamic mobility signaling to control UE activation and deactivation across different network tiers, allowing selective monitoring of reference signals, reducing power consumption and minimizing interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UEs continuously monitor reference signals from multiple tiers (terrestrial and non-terrestrial), then mobility management accuracy is improved, but power consumption increases significantly
Solution Approach 1:
The patent implements dynamic mobility signaling that adapts the monitoring configuration based on current network conditions and UE state. The network can dynamically activate or deactivate monitoring of specific reference signals from different tiers, allowing the system to maintain measurement accuracy when needed while reducing power consumption during normal operation. This dynamic adjustment resolves the contradiction by making the monitoring behavior flexible rather than static.
Solution Approach 2:
Instead of requiring continuous monitoring of all reference signals from all tiers, the patent enables partial monitoring where UEs only monitor a subset of reference signals based on current needs. The network can selectively activate monitoring for specific tiers or specific reference signals, allowing the system to maintain sufficient mobility management accuracy while significantly reducing the power consumption burden on UEs.
2Measurement precision
If UEs monitor all reference signals from terrestrial and non-terrestrial tiers, then mobility detection capability is improved, but processing burden increases
Solution Approach 1:
The patent segments the reference signal monitoring task by tier and by signal type. Instead of treating all reference signals uniformly, the system divides them into different categories (terrestrial tier signals, non-terrestrial tier signals) and can selectively activate monitoring for each segment based on current operational needs. This segmentation reduces the processing burden by allowing the UE to focus on only the relevant segments at any given time.
Solution Approach 2:
The patent implements partial monitoring where UEs process only a subset of reference signals rather than all available signals. The network can configure UEs to monitor only the necessary tiers or specific reference signals based on current mobility requirements, reducing the processing burden while maintaining sufficient detection capability for the actual mobility scenarios encountered.
3Adaptability or versatility
If conventional cell-based mobility management is applied to multi-tier networks, then compatibility with existing systems is maintained, but performance degrades in integrated terrestrial-non-terrestrial networks
Solution Approach 1:
The patent creates a universal mobility management framework that can handle both traditional terrestrial networks and integrated terrestrial-non-terrestrial networks. The system maintains compatibility with existing cell-based mechanisms while extending functionality to support multi-tier reference signal monitoring. This multi-functionality allows the same system to operate effectively in both conventional and advanced network configurations, resolving the contradiction between compatibility and performance.
Solution Approach 2:
The patent implements dynamic mobility signaling that adapts the mobility management approach based on the network configuration. When operating in traditional terrestrial networks, the system uses conventional cell-based procedures. When operating in integrated multi-tier networks, the system dynamically switches to enhanced procedures that utilize reference signals from multiple tiers. This dynamic adaptation maintains compatibility while improving performance in appropriate scenarios.
Data Source
AI summary
Mobility management in multi-tier wireless communication networks involves communicating signaling that includes tier activation information for controlling activation of a UE for operation with a network device of a first tier and a network device of a second tier. The multi-tier wireless communication network includes network devices distributed among multiple tiers, and the multiple tiers include a terrestrial tier and a non-terrestrial tier.