Deep Neural Network QoS Prediction Map Generation

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Solution Overview

Problem

Current radio communication networks face challenges in providing high-resolution Quality of Service (QoS) predictions, especially for mobile traffic applications, as existing methods rely on coarse measurements and lack detailed environmental data, leading to inaccurate cellular coverage maps.

Innovation Solution

An apparatus and method utilizing a trained artificial deep neural network to propagate low-resolution QoS maps and environment information, such as high-definition maps and base station locations, to generate high-resolution QoS prediction maps, even with sparse measurements, by exploiting correlations between coverage maps and environmental properties, and incorporating randomized noise to fill in missing information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If coarse measurements are used for QoS prediction, then measurement cost is reduced, but prediction accuracy deteriorates

Engineering Contradiction:
ImproveQoS prediction accuracyVSAvoidmeasurement data volume
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The system performs preliminary actions by collecting environment information (building data, terrain, base station locations) and training a neural network model in advance. This pre-processing enables the model to infer high-resolution QoS predictions from sparse measurements during actual operation, resolving the contradiction between measurement quantity and prediction accuracy.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A trained neural network model serves as an intermediary between sparse measurements and high-resolution QoS predictions. The model translates low-resolution input data into detailed coverage maps by leveraging environmental correlations, eliminating the need for extensive direct measurements while maintaining high prediction accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If extensive data rate measurements are collected, then QoS prediction accuracy is improved, but measurement time and complexity increase

Engineering Contradiction:
ImproveQoS prediction accuracyVSAvoidmeasurement collection time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system creates a virtual copy of the physical environment by collecting environment information (building footprints, terrain data, base station locations) and using it to train a neural network. This digital model allows rapid QoS prediction without requiring extensive physical measurements, significantly reducing measurement time while maintaining accuracy.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

Environment information and neural network training are performed in advance, creating a ready-to-use predictive model. During actual operation, the system only needs to input sparse measurements into the pre-trained model, eliminating time-consuming data collection and processing while delivering accurate predictions.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If high-resolution QoS maps are generated through traditional methods, then prediction accuracy is improved, but device complexity and processing requirements increase

Engineering Contradiction:
ImproveQoS map resolutionVSAvoidprocessing system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

A trained neural network model acts as an intermediary processing layer that automatically performs the complex task of translating sparse measurements into high-resolution QoS maps. The model encapsulates complex environmental correlations and processing logic, simplifying the overall system architecture while delivering high-resolution outputs without requiring complex processing infrastructure.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If sparse measurements are used, then measurement cost is reduced, but coverage map reliability deteriorates

Engineering Contradiction:
Improvecoverage map reliabilityVSAvoidmeasurement data
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The trained neural network serves as a reliable intermediary that compensates for sparse measurements by leveraging environmental correlations learned during training. The model infers missing information by analyzing relationships between environment features and QoS patterns, maintaining coverage map reliability even with limited input data.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system changes the parameter representation by transforming sparse measurement data into comprehensive QoS predictions through the neural network. The model processes low-resolution input parameters and outputs high-resolution coverage maps, effectively changing the data density parameter while maintaining reliability through learned environmental correlations.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11882460B2Apparatuses and methods to determine a high-resolution QoS prediction map
Publication Date: 2024.01.23 ROBERT BOSCH GMBH
  • US11882460B2 patent drawing
  • US11882460B2 patent drawing
  • US11882460B2 patent drawing

AI summary

An apparatus (100) for determining a high-resolution QoS prediction map for a first radio communications network of a first environment is provided. The apparatus (100) comprises: a first input unit being configured to determine or provide environment information characterizing the first environment; a second input being configured to determine or provide a low-resolution QoS map associated with the first radio communications network of the first environment or a second radio communications network of a second environment; and a determination unit being configured to propagate the low-resolution QoS map and the environment information through a trained artificial deep neural network, wherein low-resolution QoS map and the environment information are provided as input parameters in an input section of the trained artificial deep neural network, and wherein the high-resolution QoS prediction map for the first radio communications network is provided in an output section of the trained artificial deep neural network.