Terminal Encoded CSI Reporting for Lower Feedback Overhead
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Solution Overview
Problem
Existing radio communication systems lack specific details on how to implement AI-aided channel state information (CSI) feedback, leading to inefficiencies in overhead reduction, accuracy improvement, and resource utilization, which hinder communication throughput and quality enhancement.
Innovation Solution
A terminal and base station implementation that includes a receiving section for encoded CSI information and a control section to manage its report, utilizing AI technology for enhanced CSI feedback through methods like auto-encoding and dynamic resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If AI-aided CSI feedback is implemented without specific details definition, then innovation in channel estimation is possible, but overhead reduction and accuracy improvement cannot be achieved
Solution Approach 1:
The patent applies parameter changes by systematically defining multiple parameters for AI-aided CSI feedback including encoding schemes (quantization bits, encoding type), resource allocation parameters (time resources, frequency resources, spatial resources), and trigger conditions. These parameter definitions transform the vague AI-aided feedback concept into a concrete implementable system with controlled complexity.
Solution Approach 2:
The patent segments the AI-aided CSI feedback system into distinct controllable components: encoding parameters (separate from resource allocation), resource allocation (time, frequency, spatial dimensions), and trigger mechanisms. This segmentation allows each aspect to be independently optimized and managed, reducing overall implementation complexity while maintaining accuracy improvements.
2Productivity
If traditional CSI feedback methods are used, then implementation is straightforward, but overhead is high and communication throughput is limited
Solution Approach 1:
The patent extracts and transmits only the essential encoded CSI parameters rather than complete channel state information. By defining specific encoding schemes that extract only the most critical channel characteristics and transmitting these compressed representations, the system reduces feedback overhead while maintaining the productivity gains needed for higher communication throughput.
Solution Approach 2:
The patent introduces dynamic resource allocation for CSI feedback where the amount and type of feedback transmitted adapts based on channel conditions, traffic requirements, and quality of service needs. This dynamic approach allows the system to optimize the balance between overhead and throughput by transmitting more detailed feedback only when necessary, rather than using fixed traditional feedback methods.
3Measurement precision
If AI-aided CSI feedback is implemented without proper resource allocation, then accuracy improvement is possible, but resource efficiency deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-defining multiple encoding schemes and resource allocation configurations before actual CSI feedback operation. The system prepares various parameter sets (different quantization levels, encoding types, resource allocations) in advance, allowing rapid selection of the most appropriate configuration based on current channel conditions and requirements, thereby achieving high accuracy without wasting resources on unnecessary detailed feedback.
Solution Approach 2:
The patent implements periodic resource allocation where CSI feedback is transmitted at optimized intervals rather than continuously. By defining trigger conditions and periodic transmission patterns, the system maintains adequate CSI accuracy for channel estimation while significantly reducing resource consumption compared to continuous feedback, achieving the balance between measurement precision and resource efficiency.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes a receiving section that receives information related to a parameter to be applied to a report of encoded channel state information (CSI), and a control section that controls the report of the encoded CSI, based on the information related to the parameter.