Timing Advance Signaling for Satellite Delay Alignment
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Solution Overview
Problem
The reliability of data transmission in satellite communication systems is compromised due to the high-speed movement of satellites, as existing mechanisms fail to dynamically update timing parameters to compensate for transmission delays.
Innovation Solution
A communication processing method where user equipment (UE) reports a timing advance (TA) command to trigger the network side to update timing parameters associated with transmission delays, enhancing data transmission reliability by compensating for delays caused by satellite movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If satellites move at high speed, then communication coverage and service capability are improved, but transmission delay varies and data transmission reliability deteriorates
Solution Approach 1:
The patent implements dynamic timing parameter adjustment by introducing a timing advance command mechanism that continuously updates timing parameters based on real-time satellite position and transmission delay variations. This dynamic adaptation allows the system to maintain reliable communication despite high-speed satellite movement causing varying transmission delays.
Solution Approach 2:
The patent changes the timing parameter dynamically by using timing advance commands to adjust the timing offset between uplink and downlink transmissions. By modifying this parameter in response to satellite movement, the system compensates for transmission delay variations and maintains data transmission reliability.
2Reliability
If timing parameters are updated dynamically, then data transmission reliability is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the network device measures transmission delay, determines timing advance commands, and feeds them back to the terminal device. This closed-loop feedback system automatically adjusts timing parameters to maintain reliability without requiring complex manual configuration or intervention.
Solution Approach 2:
The system performs self-adjustment of timing parameters through automated timing advance command generation and application. The network device autonomously measures delay, calculates required timing adjustments, and applies corrections without external intervention, reducing system complexity while maintaining reliability.
Data Source
AI summary
In a communication processing method, user equipment (UE) sends a timing advance (TA) command. The TA command is configured to trigger a network side to update a timing parameter associated with a transmission delay between a base station and the UE. A base station receives the TA command; and triggers, based on the TA command, to update a timing parameter associated with a transmission delay between the base station and the UE.