CSI Reporting Priority for Resource-Limited Base Stations
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Solution Overview
Problem
Existing methods for CSI reporting in wireless communication systems face challenges when the data amount exceeds the allocated wireless resources, leading to incomplete or omitted CSI reports, which hinder the base station's ability to perform appropriate adaptation of transmission parameters.
Innovation Solution
The terminal device determines a priority order for CSI reports based on predefined rules or instructions from the base station, selectively omitting parts of the CSI report to ensure transmission within resource constraints, using methods that consider or do not consider spatial elements and transmission parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal device transmits all types of CSI reports, then the base station can perform accurate adaptation of transmission parameters, but the amount of data exceeds the allocated wireless resources
Solution Approach 1:
The terminal device extracts and transmits only the necessary CSI report types based on priority determination, rather than transmitting all available CSI reports. This selective extraction resolves the contradiction by reducing data volume while maintaining the essential measurement information needed for transmission parameter adaptation.
Solution Approach 2:
Instead of transmitting the complete set of CSI reports (excessive action), the terminal device transmits a partial set determined by priority rules. This partial action approach ensures that the most critical CSI information is transmitted within resource constraints, balancing measurement accuracy with data volume.
2Quantity of substance
If the terminal device transmits a reduced set of CSI reports to fit resource constraints, then the data volume is manageable, but some CSI information may be omitted
Solution Approach 1:
The terminal device performs preliminary priority determination before transmitting CSI reports. By pre-establishing the priority order of different CSI report types based on spatial elements and transmission parameters, the system ensures that the most important information is transmitted first, minimizing information loss while adhering to resource constraints.
Solution Approach 2:
The base station provides feedback through transmission information that guides the terminal device's priority determination. This feedback mechanism allows the base station to influence which CSI reports are transmitted, ensuring that the omitted information is minimized based on current transmission conditions and requirements.
3Use of energy by stationary object
If the base station adapts transmission parameters dynamically, then power consumption is reduced, but the throughput may be affected due to incomplete CSI reports
Solution Approach 1:
The system dynamically changes transmission parameters (spatial elements, transmission output) based on received CSI reports and communication load conditions. By adjusting these parameters adaptively, the base station reduces power consumption during low-load conditions while maintaining adequate throughput through intelligent parameter selection rather than full-capacity operation.
Data Source
AI summary
A base station device transmitting one or more reference signals to a terminal device includes: a transmitter configured to transmit configuration information related to a report of a measurement result for the one or more reference signals; and a receiver configured to receive, from the terminal device, some or all of measurement results of the one or more reference signals, the measurement results being transmitted according to a priority order which is determined according to the configuration information by the terminal device.