CSI Reporting Priority Levels for Multi-Pattern NR Feedback
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Solution Overview
Problem
The challenge in Release 18 of 3GPP for network energy saving (NES) in New Radio (NR) is efficiently reporting channel state information (CSI) associated with multiple spatial domain adaptation patterns due to limited transmission resources, necessitating a more effective method for CSI reporting configuration.
Innovation Solution
A CSI report configuration is introduced with sub-configurations having different priority reporting levels, allowing a device to transmit CSI reports based on these levels, minimizing impact on existing CSI reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple spatial domain adaptation patterns are configured for CSI reporting, then the adaptability of the system is improved, but the transmission resource consumption increases
Solution Approach 1:
The CSI report configuration is segmented into multiple sub-configurations, each associated with different spatial domain adaptation patterns and priority reporting levels. This segmentation allows the system to report CSI for multiple patterns while organizing them in a structured hierarchy that manages transmission resource usage efficiently.
Solution Approach 2:
Different priority reporting levels are assigned to different sub-configurations based on their importance. High-priority sub-configurations receive more reliable transmission resources, while low-priority sub-configurations use remaining resources. This local differentiation of quality ensures critical spatial adaptation patterns are reported reliably without exhausting all transmission resources.
2Loss of information
If CSI reports for multiple sub-configurations are transmitted, then the information completeness is improved, but the device complexity increases
Solution Approach 1:
The system dynamically determines which sub-configurations to report based on available transmission resources and priority levels. The UE adapts its reporting behavior by selecting high-priority sub-configurations when resources are limited and including additional low-priority sub-configurations when resources are abundant. This dynamic approach maintains information completeness while managing device complexity through adaptive decision-making.
3Productivity
If priority reporting levels are implemented for different sub-configurations, then the resource allocation efficiency is improved, but the configuration complexity increases
Solution Approach 1:
The system introduces priority reporting levels as a new parameter to organize and manage multiple CSI sub-configurations. By assigning different priority levels (first priority, second priority, etc.) to sub-configurations, the system creates a hierarchical structure that simplifies resource allocation decisions. The network can efficiently allocate transmission resources by prioritizing high-priority sub-configurations, and the UE can systematically manage reporting based on these priority parameters.
Data Source
AI summary
Example embodiments of the present disclosure relate to applying timing advance during random access procedure. The first apparatus transmits, to a first apparatus, a channel state information (CSI) report configuration comprising a first sub-configuration and a second sub-configuration; and receives, from the first apparatus and based at least in part on the first and second first priority reporting levels, a CSI report associated with at least one of the first sub-configuration or the second sub-configuration. Impacts to the other CSI reporting caused by introducing the sub-configuration would be minimized.