Dynamic Priority Adjustment for Channel State Information Reporting
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Solution Overview
Problem
In wireless communication systems, channel state information (CSI) reporting often has a low priority, leading to reduced communication quality and potential beam or link failures when CSI reports are not transmitted due to overlapping high-priority transmissions, especially during discontinuous reception (DRX) modes.
Innovation Solution
The system dynamically adjusts the priority of CSI reporting from low to high based on conditions such as DRX inactive times, threshold time durations, and missed reporting occasions, allowing the UE and base station to override low priority for CSI reporting to ensure timely and reliable data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CSI reporting is assigned low priority to allow high-priority transmissions, then system capacity is improved, but communication quality and link reliability deteriorate
Solution Approach 1:
The patent implements dynamic priority adjustment for CSI reporting based on DRX state and time conditions. The priority level transitions from static (always low) to dynamic (low during active time, high during inactive time), allowing the system to adapt to different operational states and resolve the contradiction between system capacity and communication quality
Solution Approach 2:
The patent changes the priority parameter of CSI reporting based on time conditions and DRX states. By modifying the priority parameter dynamically according to system state, the patent achieves both high system capacity during active periods and high communication quality during inactive periods
2Reliability
If CSI reporting frequency is increased to improve link monitoring, then link reliability is improved, but system resources are consumed
Solution Approach 1:
The patent implements periodic CSI reporting during DRX inactive time, where the UE wakes up at predetermined intervals to transmit CSI reports. This periodic action ensures link monitoring capability while consuming minimal system resources compared to continuous reporting
Solution Approach 2:
The UE autonomously determines when to perform CSI reporting based on pre-configured DRX parameters and time conditions, without requiring continuous network scheduling. This self-service approach reduces signaling overhead and system resource consumption
Data Source
AI summary
Methods, systems, and devices for wireless communications are described to provide for a user equipment (UE) and a base station to dynamically change a priority level of channel state information (CSI) reporting, such as from a low level to a high priority level, and in some cases back to the low level. If a condition is met, the UE and the base station may determine to change the priority of the CSI reporting from a low priority level to a high priority level. When the priority level for the CSI reporting is changed to a high priority level, the UE may transmit one or more CSI reports to the base station. The UE and the base station may change the priority level of the CSI reporting back to a low priority level if a second condition is met.