Base Station Uplink Scheduling via Power Class Fallback Prediction

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Solution Overview

Problem

Current methods fail to accurately determine when user equipment falls back to a lower power class, leading to inadequate scheduling and performance issues due to unknown evaluation periods and unclear reporting mechanisms, resulting in reduced maximum power output and suboptimal resource allocation.

Innovation Solution

A method that involves receiving information about the user equipment's power class and maximum duty cycle, determining a threshold duty cycle, and transmitting it to the equipment, with subsequent reporting and scheduling adjustments based on exceeded thresholds and estimated evaluation periods to prevent power class fallback and optimize uplink transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the base station schedules uplink transmission based on a conservative time period to avoid power class fallback, then the reliability of power class maintenance is improved, but the productivity and scheduling flexibility are reduced

Engineering Contradiction:
Improvepower class maintenance reliabilityVSAvoidscheduling flexibility
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The base station receives advance information about the user equipment's evaluation period timing and duration before power class fallback occurs. This preliminary knowledge allows the base station to schedule uplink transmissions in advance, avoiding the need for conservative scheduling while preventing power class fallback. The base station can confidently allocate resources knowing when the UE will be evaluated and when it might fall back to a lower power class.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where the user equipment reports its evaluation period timing and duration information to the base station. This feedback loop enables the base station to adjust its scheduling decisions dynamically based on the actual evaluation period characteristics, allowing for optimized scheduling that maintains power class reliability while maximizing scheduling flexibility and productivity.

Inventive Principle:
Principle #23Feedback

2Stability of the object's composition

If the base station uses conservative scheduling to avoid power class fallback, then the stability of power class operation is improved, but the loss of time for optimal resource allocation increases

Engineering Contradiction:
Improvepower class operation stabilityVSAvoidtime for optimal resource allocation
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

By receiving advance information about evaluation periods, the base station can perform preliminary scheduling decisions before power class fallback occurs. This eliminates the need for reactive conservative scheduling and allows optimal resource allocation to be determined in advance, reducing time loss while maintaining power class stability.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the user equipment reports power class and duty cycle information, then the measurement precision for scheduling is improved, but the device complexity of reporting mechanisms increases

Engineering Contradiction:
Improvescheduling measurement precisionVSAvoidreporting mechanism complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts only the essential information needed for scheduling decisions - specifically the evaluation period timing and duration - rather than requiring the user equipment to report all possible power class and duty cycle parameters. This selective reporting approach maintains measurement precision for scheduling while reducing the complexity of the reporting mechanism.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS20240292343A1Method and apparatus for facilitating network control
Publication Date: 2024.08.29 NOKIA TECHNOLOGIES OY
  • US20240292343A1 patent drawing
  • US20240292343A1 patent drawing
  • US20240292343A1 patent drawing

AI summary

A method, apparatus, and computer readable medium facilitate network control by allowing a base station to predict when power class fallback will occur in user equipment. In the context of a method, the method receives a message comprising information about at least one of a first power class or a maximum duty cycle associated with user equipment. The method determines, based on at least the first power class or the maximum duty cycle, a threshold duty cycle for the user equipment. The method causes the threshold duty cycle to be transmitted to the user equipment. The method determines an uplink transmission schedule for the user equipment based at least on the first power class or the maximum duty cycle. The method receives, from the user equipment, a report that the threshold duty cycle has been exceeded by the user equipment.