CSI Reporting Priority Control Under Limited Uplink Resources
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face inefficiencies in transmitting and receiving reference signals and measurement reports, particularly in managing channel state information (CSI) with varying priority levels and payload sizes, which affects network energy consumption and resource allocation.
Innovation Solution
A method and apparatus for transmitting and receiving signals in a wireless communication system that differentiates priority levels for group 0, group 1, and group 2 CSI, allowing for the omission of part 2 CSI at a sub-configuration level and prioritizing CSI reports based on configured sub-reports and power offset values to optimize resource usage and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If all CSI reports are transmitted without omission, then measurement precision is improved, but network energy consumption increases
Solution Approach 1:
The patent applies partial action by selectively transmitting only necessary CSI reports based on priority levels and payload sizes. When uplink resources are limited, the system transmits high-priority CSI reports (e.g., group 0 CSI) while omitting lower-priority ones (e.g., group 2 CSI), achieving a balance between measurement precision and energy consumption by performing the transmission function partially rather than completely
Solution Approach 2:
The system changes the parameter of CSI report transmission by dynamically adjusting which CSI groups are transmitted based on priority levels, payload sizes, and available uplink resources. This parameter change allows the network to adapt transmission behavior to current conditions, reducing energy consumption while maintaining essential measurement precision
2Loss of information
If CSI reports with large payload sizes are transmitted, then information completeness is improved, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent segments CSI reports into different priority groups (group 0, group 1, group 2) with varying payload sizes. This segmentation allows the system to transmit information in prioritized portions, ensuring that critical CSI information is transmitted first while lower-priority information can be omitted when resources are constrained, thus improving resource allocation efficiency without completely sacrificing information completeness
Solution Approach 2:
The system performs partial transmission of CSI information by selectively including or omitting specific CSI groups based on payload size and resource availability. This partial action approach ensures that the most important CSI information is transmitted while avoiding the resource exhaustion that would result from transmitting all CSI data
3Productivity
If priority differentiation for CSI groups is implemented, then resource allocation efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements priority differentiation by changing the parameter of CSI report configuration to include priority levels and payload size categories. This parameter change enables the UE to automatically differentiate between CSI groups and apply appropriate transmission strategies, improving resource allocation efficiency while keeping the complexity increase manageable through standardized priority levels
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A method and apparatus for transmitting and receiving signals in a wireless communication system, disclosed in the present specification, omit transmission of a portion of part 2 CSI, according to a priority level. Here, the priority level may be subdivided on the basis of a low-configuration level.