NWDAF Network Data Analytics via Energy-Saving State Segmentation

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Solution Overview

Problem

In 5G networks, network data analytics methods struggle to accurately distinguish between network data from cells in energy-saving and non-energy-saving states, leading to compromised accuracy of analytics results due to mixed data collection.

Innovation Solution

The NWDAF network element collects and analyzes network data related to an area of interest, incorporating energy-saving state information to differentiate between energy-saving and non-energy-saving state data, allowing for targeted analytics and improved result accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the NWDAF collects network data from all cells without distinguishing energy-saving state, then the data collection process is simple and fast, but the accuracy of analytics results deteriorates due to mixed data from different states

Engineering Contradiction:
Improveanalytics result accuracyVSAvoiddata processing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments network data into two distinct categories: data from cells in energy-saving state and data from cells in non-energy-saving state. The NWDAF obtains energy-saving state information from OAM devices and uses this to separate and process data differently, ensuring that analytics results are not contaminated by mixed-state data, thereby improving measurement precision while managing complexity through structured segmentation.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the NWDAF distinguishes and processes data separately for energy-saving and non-energy-saving cells, then the analytics result accuracy is improved, but the complexity of data collection and processing increases

Engineering Contradiction:
Improveanalytics result reliabilityVSAvoidnetwork element complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces energy-saving state information as an intermediary element that mediates between raw network data and analytics results. The NWDAF obtains this state information from OAM devices and uses it as a filtering and classification mechanism, allowing reliable analytics to be produced without significantly increasing the complexity of the NWDAF itself, as the state information acts as a guiding intermediary for data processing.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Loss of information

If the NWDAF collects detailed energy-saving state information from OAM devices, then the ability to perform accurate analytics is enhanced, but the information processing load and system complexity increase

Engineering Contradiction:
Improveinformation completenessVSAvoiddata management complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent implements preliminary action by having OAM devices pre-calculate and maintain energy-saving state information before the NWDAF performs analytics. The state information is prepared in advance and made available to the NWDAF, which then uses this pre-processed information to efficiently distinguish and analyze data from different cell states, reducing the information processing load during actual analytics operations while maintaining complete information.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12047247B2Network data analysis method, network data analysis functional network element and communication system
Publication Date: 2024.07.23 CHINA TELECOM CORP LTD
  • US12047247B2 patent drawing
  • US12047247B2 patent drawing

AI summary

The present disclosure relates to the field of communications, and provides a network data analytics method, a network data analytics function (NWDAF) network element and a communication system. The NWDAF network element collects network data associated with an area of interest AOI, wherein the network data comprises energy-saving state information of a cell of the area of interest AOI. The network data associated with the area of interest AOI is analyzed by combining the energy-saving state information of the cell of the area of interest AOI, and the analysis result is output. The NWDAF network element can distinguish network data of the cell in the energy-saving state and the non-energy-saving state.