Terminal CSI Feedback Prioritization Under Processing Limits
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Solution Overview
Problem
Terminal devices face processing capability limitations when measuring and calculating multiple channel state information (CSI) reports, leading to incomplete or delayed CSI feedback, which affects the efficiency of wireless communication systems.
Innovation Solution
Implementing a priority scheme in the multi-CSI feedback mechanism where terminal devices prioritize CSI measurements and calculations based on available processing units and predefined criteria, ensuring that only updated results are transmitted, thereby optimizing the use of processing resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If terminal devices measure and calculate multiple CSI reports simultaneously, then the completeness and accuracy of CSI feedback is improved, but the processing capability and resource consumption increase beyond device limits
Solution Approach 1:
The patent segments the multiple CSI reports into different priority levels (first priority and second priority). The terminal device processes and feeds back CSI reports according to their priority, ensuring that critical CSI feedback is transmitted first while managing limited processing resources. This segmentation allows the system to handle multiple CSI reports without overwhelming the terminal device's processing capability.
2Loss of time
If terminal devices prioritize CSI measurements based on available processing units, then the timeliness of CSI feedback is improved, but the quantity of CSI reports that can be processed decreases
Solution Approach 1:
The patent implements a dynamic priority-based processing mechanism where the terminal device adjusts its CSI measurement and feedback behavior based on available processing resources. When processing capability is limited, the device dynamically focuses on high-priority CSI reports. The base station also dynamically configures CSI measurement resources and priorities, allowing the system to adapt to varying channel conditions and resource availability, thus balancing timeliness and processing quantity.
Data Source
AI summary
A terminal device includes: a receiver configured to receive a reference signal from a base station device, a transmitter configured to transmit a report to the base station device; the report including a plurality of measurement results corresponding to a plurality of measurement items; and a controller configured to determine the number of channel state information (CSI) processors for the report according to the number of reference signals used for each of the plurality of measurement items.