Terminal TA Reporting Conditions for Satellite Random Access
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Solution Overview
Problem
In satellite communication, the large delay in satellite networks leads to challenges in Timing Advance (TA) reporting, resulting in a lower success rate of information processing due to the lack of restrictions on TA reporting in Non-Terrestrial Networks (NTN) scenarios.
Innovation Solution
A method and apparatus for a terminal to trigger Timing Advance (TA) reporting based on specific conditions, including Reference Signal Received Power (RSRP), Coverage Enhancement (CE) status, and distance/round-trip time thresholds, ensuring appropriate reporting of TA through Message 3 (MSG3) when conditions are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If TA reporting is unrestricted in NTN scenarios, then the flexibility of the system is improved, but the success rate of information processing deteriorates
Solution Approach 1:
The patent changes the parameter of TA reporting by introducing conditional triggering based on RSRP thresholds and CE status. The terminal determines whether to report TA based on comparing RSRP values against configured thresholds and checking if CE is applied, thereby transforming unrestricted reporting into controlled conditional reporting that improves success rate while maintaining necessary flexibility.
Solution Approach 2:
The patent makes the TA reporting mechanism dynamic by enabling the terminal to adaptively decide whether to trigger TA reporting based on real-time channel conditions (RSRP measurements) and CE status. This dynamic adjustment allows the system to optimize performance under varying satellite communication conditions rather than following a static unrestricted reporting approach.
2Device complexity
If TA report is triggered without conditions, then the reporting process is simplified, but the accuracy of timing synchronization deteriorates
Solution Approach 1:
The patent introduces conditional parameters (RSRP thresholds and CE status) that control TA reporting triggering. By changing the reporting behavior from unconditional to condition-based, the system achieves more accurate timing synchronization while managing complexity through standardized threshold comparisons and status checks.
3Reliability
If TA reporting is restricted based on multiple conditions, then the success rate of information processing is improved, but the device complexity increases
Solution Approach 1:
The patent segments the TA reporting decision process into distinct evaluable conditions: RSRP threshold comparison and CE status checking. By dividing the complex decision-making into separate modular conditions, the system improves reliability through systematic evaluation while managing complexity through structured, independent judgment steps that can be implemented efficiently.
4Loss of information
If the terminal always reports TA, then the network can always have updated TA information, but the uplink resource consumption increases
Solution Approach 1:
The patent applies partial action by having the terminal report TA information selectively rather than always. Based on whether reporting conditions are met (RSRP thresholds and CE status), the terminal performs TA reporting only when necessary, thereby reducing uplink resource consumption while still providing the network with updated TA information when it matters most.
Data Source
AI summary
An information processing method, an information processing apparatus and readable storage medium are provided, which relate to the field of communications technology, so as to improve a success rate of information processing. The method includes: obtaining, by a terminal, first information; triggering, by the terminal, reporting of a Timing Advance (TA) report, when a reporting condition of the TA report is determined to be met according to the first information.