Non-Terrestrial Network Timing Advance Reporting With Configurable Thresholds
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately reporting timing advance information in non-terrestrial networks, leading to inefficiencies in synchronization and data transmission.
Innovation Solution
A method for configuring and triggering timing advance reporting procedures based on predefined thresholds, including the use of scheduling requests and prohibit timers to optimize timing advance reporting in non-terrestrial networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If timing advance reporting is performed continuously or frequently, then synchronization accuracy is improved, but signaling overhead and network resources are consumed excessively
Solution Approach 1:
The patent implements periodic timing advance reporting where the network configures reporting periods and triggers based on predefined conditions. Instead of continuous reporting, the system uses periodic triggers (e.g., after certain numbers of TAI advancements) to balance synchronization needs with resource consumption, resolving the contradiction between measurement precision and quantity of substance
Solution Approach 2:
The patent dynamically adjusts reporting parameters based on network conditions and UE capabilities. The network can modify reporting thresholds, periods, and triggers adaptively, allowing the system to optimize between synchronization accuracy and signaling overhead by changing operational parameters rather than maintaining fixed continuous reporting
2Speed
If timing advance reporting is triggered frequently based on small threshold changes, then synchronization responsiveness is improved, but network processing load increases
Solution Approach 1:
The patent employs configurable thresholds and triggers that can be adjusted based on network conditions. By allowing dynamic parameter changes in trigger conditions (e.g., minimum TAI advancement thresholds), the system optimizes responsiveness while controlling network processing load according to actual operational requirements
Solution Approach 2:
The system implements dynamic trigger mechanisms where reporting behavior adapts to current network state and UE conditions. The network can modify triggering criteria in real-time based on load conditions, creating a dynamic balance between responsiveness and processing load rather than static frequent triggering
3Productivity
If timing advance information is reported with high precision and frequency, then data transmission efficiency is improved, but device complexity and configuration requirements increase
Solution Approach 1:
The patent implements a universal timing advance reporting mechanism that serves multiple functions: synchronization, mobility management, and data transmission optimization. By making the reporting system multi-functional and adaptable to different scenarios through configurable triggers, the patent reduces the need for separate complex configurations for each function while maintaining high data transmission efficiency
Data Source
AI summary
A method may include receiving, by a wireless device, one or more configuration parameters for a timing advance (TA) reporting procedure. The one or more configuration parameters may include a first timing advance threshold for a TA reporting based on an offset between a current timing advance value and a last reported timing advance value. The method may also include triggering the TA reporting procedure based on a condition for the first timing advance threshold being satisfied. The method may additionally include based on the triggering the TA reporting procedure, triggering a scheduling request (SR) and starting a SR prohibit timer. The method may further include, in response to canceling the TA reporting procedure, cancelling the triggered SR and stopping the SR prohibit timer.