Dynamic MIMO Layer Correction for Accurate PRB Utilization
Solution Overview
Problem
Existing methods for determining Physical Resource Block (PRB) utilization rate are inaccurate due to the static nature of layer factors, which do not account for dynamic changes in MIMO layer usage, leading to an incomplete understanding of network load conditions.
Innovation Solution
A method for determining resource utilization rate by using a layer factor corrected based on historical PRB usage information, including the number of MIMO layers, to accurately reflect actual PRB availability and load conditions, employing dynamic layer factors to adjust the total number of PRBs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a static layer factor is used to determine PRB utilization rate, then the calculation is simple, but the accuracy of resource utilization rate assessment deteriorates
Solution Approach 1:
The patent applies the dynamics principle by transforming the static layer factor into a dynamic one that adapts to changing network conditions. The layer factor is no longer fixed but is determined based on historical PRB usage information and MIMO layer statistics from multiple sampling occasions. This allows the resource utilization rate calculation to reflect real-time network load conditions while maintaining a relatively simple calculation framework.
Solution Approach 2:
The patent implements feedback by using historical PRB usage information to continuously adjust the layer factor. The network side device collects MIMO layer statistics from multiple sampling occasions, calculates the layer factor based on this feedback information, and uses it to determine the resource utilization rate. This closed-loop approach ensures the assessment accuracy improves over time as more historical data becomes available.
2Measurement precision
If dynamic layer factors based on historical PRB usage information are used, then the accuracy of resource utilization rate assessment is improved, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing historical PRB usage information and MIMO layer statistics from multiple sampling occasions. This preparatory work is done in advance before the actual resource utilization rate determination, allowing the network side device to quickly apply the layer factor without performing complex real-time analysis during the measurement process.
Solution Approach 2:
The patent changes the parameter of the layer factor from a fixed constant to a variable determined by historical PRB usage information. Specifically, the layer factor is calculated based on the statistics of MIMO layers from multiple sampling occasions, transforming it into a data-driven parameter that adapts to network conditions while maintaining calculation efficiency.
3Productivity
If space division multiplexing is utilized to increase transmission speed, then the spectrum utilization rate is improved, but the accuracy of traditional PRB utilization rate measurement deteriorates
Solution Approach 1:
The patent addresses the limitation of traditional PRB utilization rate measurement in space division multiplexing scenarios by introducing a new dimension - the layer factor. Instead of measuring only the number of used PRBs, the patent incorporates the MIMO layer dimension by calculating the layer factor based on historical MIMO layer statistics. This allows the resource utilization rate to reflect both frequency and spatial dimensions, accurately capturing the impact of space division multiplexing on network capacity.
Data Source
AI summary
A method for determining a resource utilization rate. The method is performed by a network side device, and includes: determining the resource utilization rate by using a total number of physical resource blocks (PRBs) corrected by a layer factor, wherein the layer factor is determined according to PRB usage information of at least one sampling occasion, and the PRB usage information of the at least one sampling occasion at least comprises a number of multiple input multiple output (MIMO) layers used by a PRB in data transmission.