UMTS QoS Verification via Scheduled IP Throughput Summation

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Solution Overview

Problem

Current methods for optimizing Node-B deployment in UMTS and LTE systems are time- and resource-consuming, particularly in addressing mobility optimization and Quality of Service (QoS) verification, with existing minimization of drive test (MDT) methods not effectively addressing LTE system requirements.

Innovation Solution

A method for performing QoS measurement in UMTS that involves setting measurement targets based on transmission parameters, selecting a specific period, and acquiring uplink and downlink scheduled IP throughput by summing data throughput during that period, utilizing a QoS lookup table and defined information elements to optimize data link settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If common methods of measuring signal strength or quality at different time and geographical locations are used, then deployment optimization can be achieved, but the process becomes time- and effort-consuming

Engineering Contradiction:

Improvesignal quality measurementVSAvoidmeasurement time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The UE performs self-measurement of signal strength and quality at its current location and sends the measurement report to the NB. This eliminates the need for operators to manually conduct drive tests, significantly reducing time and effort while maintaining measurement accuracy

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Instead of physically moving measurement equipment to different locations, the system uses multiple UEs distributed across different geographical locations to provide measurement data. The NB collects and processes these reports to achieve deployment optimization without time-consuming manual measurements

Inventive Principle:

Principle #26Copying

2Adaptability or versatility

If MDT mobility optimization is implemented in LTE systems, then coverage and mobility optimization can be achieved, but the existing methods do not effectively address LTE system requirements

Engineering Contradiction:

Improvemobility optimizationVSAvoidimplementation feasibility

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent applies MDT mobility optimization specifically designed for LTE system characteristics. It measures scheduled IP throughput (uplink and downlink) and applies LTE-specific parameters and protocols to ensure the optimization method is adapted to LTE requirements rather than simply porting UMTS methods

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent segments the QoS measurement into separate uplink and downlink scheduled IP throughput measurements for different data links. This segmented approach allows targeted optimization for each data link type, making the implementation more feasible and effective for LTE systems with multiple bearers and data links

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8964588B2Method of performing QoS verification in UMTS

Publication Date: 2015.02.24 ACER INC

AI summary

According to one or multiple transmission parameters, one or multiple measurement targets are set for a plurality of data links provided by a user equipment in UMTS. The data throughput of each measurement target during a specific period is summed up for acquiring an uplink scheduled IP throughput and a downlink scheduled IP throughput of each measurement target.