WTRU Autonomous Drive Test Minimization via QoS Verification
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Solution Overview
Problem
Network operators face challenges in efficiently conducting drive tests to optimize coverage and identify interference issues, as traditional methods are costly and labor-intensive, and do not provide real-time data on user experience.
Innovation Solution
Implementing a system where wireless transmit/receive units (WTRUs) autonomously perform and report test measurements based on configured triggers, such as geographic regions, time, or channel conditions, allowing for continuous quality of service verification and reduced operator maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional drive tests are conducted manually by operators, then measurement accuracy and coverage optimization are improved, but operational costs and labor requirements increase significantly
Solution Approach 1:
The patent implements self-service by enabling WTRUs to autonomously perform drive test measurements and report results without requiring manual operator intervention. The WTRU automatically executes measurement tasks based on configured parameters and returns to idle mode after reporting, eliminating the need for dedicated test personnel and significantly reducing operational costs while maintaining measurement accuracy.
Solution Approach 2:
The patent applies universality by repurposing regular WTRUs (user devices) to perform drive test measurements in addition to their normal communication functions. This multi-functionality allows the network to leverage existing user devices for measurement tasks, eliminating the need for specialized test equipment and reducing operational expenses while maintaining comprehensive coverage measurement capabilities.
2Reliability
If WTRUs continuously perform test measurements, then real-time QoS verification is improved, but device energy consumption and processing load increase
Solution Approach 1:
The patent implements periodic action by configuring WTRUs to perform measurements only at specific intervals or under certain conditions rather than continuously. The measurement configuration includes triggers that activate measurements based on events such as entering specific geographic regions, time of day, or channel conditions, allowing the WTRU to conserve energy by remaining in idle mode between measurement periods while still providing reliable QoS verification data.
Solution Approach 2:
The patent applies dynamics by making the measurement activation stateful and condition-dependent. The WTRU dynamically transitions between idle mode and active measurement mode based on configured triggers and current network conditions. This dynamic behavior allows the system to balance QoS verification reliability with energy consumption by activating measurements only when necessary rather than maintaining continuous operation.
3Measurement precision
If manual drive tests are performed to identify coverage holes and interference, then network optimization accuracy is improved, but time consumption and operational complexity increase
Solution Approach 1:
The patent implements continuity of useful action by enabling WTRUs to perform measurements continuously in the background as part of normal network operation rather than requiring dedicated test campaigns. Measurements are taken opportunistically when WTRUs are already active and communicating, allowing the network to accumulate interference and coverage data over time without interrupting service or requiring scheduled test windows, thus reducing overall time consumption while maintaining detection accuracy.
4Quantity of substance
If extensive drive tests are conducted to verify network performance, then measurement comprehensiveness is improved, but device availability for normal service decreases
Solution Approach 1:
The patent applies partial action by having WTRUs perform only the specific measurements required for QoS verification rather than comprehensive continuous monitoring. Measurements are triggered selectively based on configured conditions such as geographic location, time of day, or network events, allowing the WTRU to collect sufficient measurement data for network optimization while spending most time in idle mode available for normal user services, thus balancing measurement comprehensiveness with device availability.
Data Source
AI summary
A method of managing one or more test measurements associated with a communication system using a wireless transmit/receive unit (WTRU) is disclosed. The method includes receiving, by the WTRU, a measurement configuration including at least a trigger indicating a condition or event for initiation of the one or more test measurements; determining, by the WTRU, whether the trigger has been satisfied, as a determination result; initiating the one or more test measurements in accordance with the determination result; and measuring, by the WTRU, the one or more test measurements.