Dynamic CSI Reporting Frequency Adjustment for Wireless Resource Allocation
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Solution Overview
Problem
In wireless networks, especially in EN-DC configurations where 5G UEs connect to both LTE and 5G nodes, signal performance parameters vary, leading to decreased quality of service and interference, necessitating a dynamic adjustment of CSI reporting frequency to improve resource allocation and reduce interference.
Innovation Solution
A system and method that dynamically identify signal performance parameters and adjust the CSI reporting frequency for wireless devices by comparing these parameters to predetermined thresholds, increasing reporting frequency when performance is inadequate and decreasing it when performance improves, using processing nodes to instruct wireless devices to change their reporting protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If CSI reporting frequency is increased to improve resource allocation and performance, then wireless device performance is improved, but network resource consumption and interference increase
Solution Approach 1:
The patent applies dynamics by making the CSI reporting frequency adjustable rather than fixed. The system dynamically modifies the reporting frequency based on real-time signal performance parameters (RSSI, SINR, path loss, fading) to optimize between performance improvement and resource conservation. When signal conditions deteriorate, reporting frequency increases; when conditions are stable, frequency decreases.
Solution Approach 2:
The patent changes the parameter of CSI reporting frequency based on signal performance conditions. The system monitors parameters such as RSSI, SINR, path loss, and fading, and adjusts the reporting frequency accordingly. This parameter change allows the system to adapt to varying network conditions and balance performance requirements with resource consumption.
2Reliability
If CSI reporting frequency is increased to respond to signal degradation, then quality of service is improved, but uplink interference increases
Solution Approach 1:
The patent implements feedback by continuously monitoring signal performance parameters (RSSI, SINR, path loss, fading) and using this information to adjust CSI reporting frequency. The access node receives signal performance information from the wireless device and modifies reporting behavior accordingly, creating a closed-loop control system that responds to actual network conditions.
3Device complexity
If fixed CSI reporting protocol is used for all devices, then system complexity is reduced, but adaptability to varying signal conditions deteriorates
Solution Approach 1:
The patent applies local quality by customizing the CSI reporting behavior for individual wireless devices based on their specific signal conditions. Instead of a uniform approach for all devices, the system adjusts reporting frequency and parameters according to each device's measured performance (RSSI, SINR, path loss, fading), allowing optimized performance for each user while managing overall system complexity.
Data Source
AI summary
Systems and methods are provided for dynamically changing a channel state information (CSI) reporting protocol by adjusting CSI reporting frequency for a wireless device communicating with an access node within a wireless network. The methods and systems identify undesirable signal performance parameters at a particular wireless device and adjust the CSI reporting frequency when the undesirable signal performance parameters meet a predetermined threshold. The method changes the CSI reporting frequency for the wireless device to enable more frequent CSI reporting to the access node to facilitate reallocation of resources.