Conditional TA Reporting for NTN Uplink Synchronization
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Solution Overview
Problem
In non-terrestrial network (NTN) systems, frequent reporting of timing advance (TA) values by terminal devices to the network device leads to excessive network overhead, which is inefficient and burdensome.
Innovation Solution
The terminal device transmits a first TA value only when it satisfies a preset condition, such as a significant change in TA or unavailability of time domain parameters, reducing unnecessary reporting and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices frequently report TA values to the network device, then the network device can maintain accurate uplink synchronization, but network overhead increases excessively
Solution Approach 1:
The patent extracts only the necessary TA value reporting instances from frequent reporting, transmitting TA values only when preset conditions are met (such as when TA changes exceed a threshold or when triggered by specific events), thereby eliminating unnecessary reporting and reducing network overhead while maintaining synchronization accuracy
Solution Approach 2:
The patent implements conditional periodic reporting where TA values are reported at specific intervals or triggered by events rather than continuously, allowing the system to balance between maintaining synchronization accuracy and reducing network overhead by reporting only when necessary
Data Source
AI summary
A wireless communication method, a terminal device and a network device are provided. In the wireless communication method, the terminal device transmits a first timing advance (TA) value of the terminal device to a network device in response to that the terminal device satisfies a preset condition.