Terminal Device Time-Domain Granularity Conversion for NTN Timing Offset
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Solution Overview
Problem
In Non-Terrestrial Networks (NTN) systems, the large delay between a satellite and a terminal device leads to inconsistencies in time-domain granularity between the information reported by the terminal and the timing offset value, making it difficult for network devices to accurately determine the timing offset value Koffset.
Innovation Solution
The terminal device converts the time-domain granularity of reported information to match the granularity of the timing offset value Koffset, ensuring consistency and facilitating its determination by network devices, using methods such as converting time-domain resource granularities associated with subcarriers to align with the timing offset's granularities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the terminal device reports timing information with native time-domain granularity, then the reporting is straightforward and simple, but the time-domain granularity of reported information is inconsistent with the timing offset value granularity, making it difficult for the network device to determine the timing offset value
Solution Approach 1:
The terminal device converts the time-domain granularity parameter of the reported information from its native granularity to the granularity of the timing offset value Koffset. This parameter transformation enables the network device to accurately determine Koffset while maintaining straightforward reporting procedures.
2Measurement precision
If the terminal device converts time-domain granularity to match the timing offset value granularity, then the timing offset value can be accurately determined, but the processing complexity increases
Solution Approach 1:
The terminal device performs the time-domain granularity conversion in advance, before reporting the timing information to the network device. This preliminary processing ensures that the reported information is already in the correct granularity format, simplifying the network device's determination process for the timing offset value.
Data Source
AI summary
Provided in the embodiments of the present application are a wireless communication method, a terminal device, and a network device. A terminal device sends first information for determining a timing offset value to a network device, where the first information is a first parameter with a first time-domain granularity, and/or the first information is a second parameter with the first time-domain granularity, the first time-domain granularity being a time-domain granularity associated with a subcarrier, the first parameter being used for representing a delay of a service link estimated by the terminal device, and the second parameter being used for representing a Timing Advance (TA).