Dynamic CSI Reporting Adjustment for Wireless Power Headroom

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

In EN-DC wireless networks, wireless devices experience power headroom issues and quality of service degradation due to high noise and low power headroom, necessitating dynamic adjustment of CSI reporting protocols to improve resource utilization and performance.

Innovation Solution

A system and method that dynamically adjust the CSI reporting protocol by identifying power headroom values and adjusting the reporting frequency on primary and secondary paths, increasing frequency on the primary path when power headroom is low to enhance resource reallocation and reduce noise by decreasing frequency on the secondary path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If CSI reporting frequency is increased on the primary path, then resource scheduling performance is improved, but resource consumption and noise increase

Engineering Contradiction:

Improveresource scheduling performanceVSAvoidresource consumption

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The patent applies local quality by differentiating CSI reporting frequencies between primary and secondary paths. The primary path (used for larger percentage of data) receives increased reporting frequency when power headroom is low, while the secondary path maintains or reduces reporting frequency. This localized adjustment optimizes resource scheduling where it matters most without unnecessarily increasing overall resource consumption.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent implements dynamic adjustment of CSI reporting frequency based on real-time power headroom conditions. When power headroom falls below a threshold, the reporting frequency on the primary path is increased; when power headroom is sufficient, the frequency is reduced. This dynamic approach allows the system to adapt resource consumption to actual performance needs.

Inventive Principle:

Principle #15Dynamics

2Reliability

If CSI reporting frequency is increased to improve QOS, then service quality is improved, but network noise and resource usage increase

Engineering Contradiction:

Improvequality of serviceVSAvoidnetwork noise

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent reduces network noise by applying local quality adjustments to CSI reporting frequencies on different paths. By increasing reporting frequency only on the primary path when needed and maintaining or reducing frequency on the secondary path, the system improves QOS where necessary while minimizing the generation of network noise from excessive reporting.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies partial action by selectively adjusting CSI reporting frequency only on the primary path rather than uniformly increasing reporting across all paths. This partial adjustment is sufficient to improve QOS for the majority of data transmission without the excessive noise and resource consumption that would result from increasing reporting frequency on all paths.

Inventive Principle:

Principle #16Partial or excessive action

3Power

If power headroom is low due to high transmission power, then data transmission capability is improved, but available power for additional transmissions decreases

Engineering Contradiction:

Improvedata transmission capabilityVSAvoidavailable transmission power

Core Design Contradiction:

PowerVSUse of energy by moving object

Solution Approach 1:

The patent implements feedback by monitoring power headroom values and using this information to dynamically adjust CSI reporting frequency. When power headroom is low (indicating high transmission power usage), the system increases CSI reporting frequency on the primary path to enable more frequent resource scheduling and potentially reduce transmission power requirements. This feedback loop allows the system to respond to power conditions and optimize the balance between transmission capability and available power.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent applies preliminary action by proactively adjusting CSI reporting frequency based on power headroom thresholds before power depletion becomes critical. When power headroom falls below a predetermined threshold, the system preemptively increases reporting frequency to enable earlier resource reallocation and power optimization, preventing more severe power constraints before they occur.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12127032B2Dynamic channel state information reporting adjustment on primary and secondary paths

Publication Date: 2024.10.22 SPRINT SPECTRUM LP

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 a power headroom (PHR) value at a particular wireless device and adjust the CSI reporting frequency when the PHR satisfies a predetermined threshold. The method changes the CSI reporting frequency for the wireless device to enable more frequent CSI reporting over a primary path to the access node to facilitate reallocation of resources.