CSI Reference Resource Location Determination in Mixed Numerology Systems
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Solution Overview
Problem
Current standards lack clear methods for determining the location of the CSI reference resource on the time domain when different numerologies are used for uplink and downlink in communication systems, particularly for channel state information (CSI) reporting, which affects the accuracy of CSI calculation and system processing efficiency.
Innovation Solution
A method is provided for determining the location of the CSI reference resource on the time domain by calculating a slot offset based on downlink measurement and uplink reporting resource configurations, using various processing manners such as table lookup, preset correspondences, or calculation formulas, to accurately identify the CSI reference resource location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different numerologies are used for uplink and downlink, then the system can support diverse service requirements and improve adaptability, but the determination of CSI reference resource location becomes ambiguous and processing efficiency deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the determination method of CSI reference resource location based on the numerology configuration. When different numerologies are detected for uplink and downlink, the system switches to a specific determination mode that accounts for the numerology difference, thereby maintaining processing efficiency while supporting diverse service requirements through parameter adaptation.
Solution Approach 2:
The patent implements dynamics by making the CSI reference resource location determination adaptive to the actual numerology configuration. The system dynamically selects between different determination approaches depending on whether uplink and downlink use the same or different numerologies, enabling the system to flexibly respond to varying service requirements without sacrificing processing efficiency.
2Adaptability or versatility
If different numerologies are used for uplink and downlink, then service diversity is improved, but the accuracy of CSI calculation deteriorates due to ambiguous reference resource location
Solution Approach 1:
The patent resolves this contradiction by changing the determination parameters of CSI reference resource location based on numerology configuration. When different numerologies are detected, the system applies a specific determination rule that ensures the reference resource location is accurately identified, thereby maintaining CSI calculation accuracy while supporting diverse services through numerology flexibility.
Solution Approach 2:
The patent employs feedback mechanisms by using the numerology configuration information as a input condition for determining the CSI reference resource location. The system feedbacks the numerology difference detection result to the resource location determination process, ensuring that the reference resource is correctly identified even when uplink and downlink use different numerologies, thus maintaining measurement precision.
3Ease of manufacture
If standard methods are used for CSI reporting, then implementation simplicity is maintained, but the ability to handle different numerologies deteriorates
Solution Approach 1:
The patent applies dynamics by making the CSI reference resource location determination adaptive to numerology configuration. The system dynamically adjusts its behavior based on whether uplink and downlink use the same or different numerologies, thereby maintaining implementation simplicity through standardized procedures while simultaneously improving the ability to handle different numerologies through conditional adaptation.
Data Source
AI summary
Embodiments of the application provide a method for determining a resource location in a terminal device, a terminal device, and a non-transitory computer readable storage medium. A terminal device determines a second downlink slot corresponding to the CSI reporting moment based on a first uplink slot where channel state information (CSI) reporting moment is located; the terminal device obtains a slot offset, where the slot offset is a slot offset of a location of a CSI reference resource on a time domain relative to the second uplink slot; the terminal device determines the location of the CSI reference resource on the time domain based on the second uplink slot and the slot offset.