NTN Store and Forward Time Information Management
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing time information for Non-Terrestrial Network (NTN) store and forward operations, leading to suboptimal performance in NTN cell operations.
Innovation Solution
The method involves User Equipment (UE) receiving time information for Store and Forward (S&F) operations in NTN cells and determining when to enter or leave S&F mode based on this information, thereby optimizing S&F operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UE continuously monitors NTN cell status to determine S&F mode entry/exit, then operational efficiency is improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The network provides advance notification of S&F mode entry/exit events before they actually occur. The UE receives indication information in advance that tells it when to expect mode changes, allowing the UE to prepare appropriate handling procedures beforehand rather than reacting continuously to status changes.
Solution Approach 2:
The network implements a feedback mechanism where it actively notifies the UE about S&F mode status changes. This feedback loop allows the UE to adjust its behavior based on actual network conditions without needing to continuously monitor and process real-time status information.
2Measurement precision
If UE waits for actual S&F mode changes to respond, then response accuracy is improved, but time delay increases
Solution Approach 1:
The network provides advance notification of S&F mode entry/exit events before they actually occur. The UE receives indication information in advance that tells it when to expect mode changes, allowing the UE to prepare appropriate handling procedures beforehand rather than reacting continuously to status changes.
3Reliability
If UE implements comprehensive S&F mode handling procedures, then operational reliability is improved, but implementation complexity increases
Solution Approach 1:
The network implements a feedback mechanism where it actively notifies the UE about S&F mode status changes. This feedback loop allows the UE to adjust its behavior based on actual network conditions without needing to continuously monitor and process real-time status information.
Solution Approach 2:
The UE uses the received indication information to autonomously determine when to enter or exit S&F mode without requiring complex continuous monitoring procedures. The indication information itself guides the UE's actions, simplifying the implementation while maintaining reliability.
Data Source
AI summary
Methods, systems, and apparatuses are provided for time information of Non-Terrestrial Network (NTN) store and forward operations in a wireless communication system such that User Equipment (UE) can apply Store and Forward (S&F) operations more efficiently, wherein a method of a UE comprises receiving a time information for an S&F operation for an NTN cell, and determining when to enter or leave an S&F mode for the NTN cell based on the time information.