5G UPF QoS Measurement Failure Trigger and Reporting
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Solution Overview
Problem
Existing quality of service (QoS) measurement methods in 5G networks fail to comprehensively measure QoS due to packet delay exceeding the packet delay budget, leading to discarded QoS measurement data packets and inability to obtain measurement results.
Innovation Solution
Defining quality of service measurement failure and implementing a method where the user plane function entity (UPF) receives a QoS measurement request with trigger conditions, judges the conditions, and sends measurement results to the policy control function entity, enabling comprehensive QoS measurement even in failure cases by specifying preset durations for feedback and packet loss scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If QoS measurement data packets are sent to measure packet delay, then QoS measurement capability is improved, but packet delay may exceed packet delay budget causing packets to be discarded and measurement failure
Solution Approach 1:
The patent applies preliminary action by setting a trigger condition before measurement failure occurs. The UPF monitors whether a feedback data packet is received within a preset duration after sending the measurement data packet. If the feedback is not received within this predetermined time, the trigger condition is met and the measurement failure is reported to the PCF, enabling proactive detection and reporting of measurement failures before they completely compromise the measurement process.
Solution Approach 2:
The patent implements feedback by establishing a feedback mechanism where the UPF sends measurement data packets and waits for corresponding feedback data packets. The feedback loop allows the UPF to monitor whether the measurement data packets were successfully delivered and processed, enabling the system to detect measurement failures based on the absence of expected feedback within a predetermined time window.
2Reliability
If packet delay budget is strictly enforced, then service quality is improved, but measurement packets are discarded when delay exceeds budget, losing measurement data
Solution Approach 1:
The patent converts the harmful effect of measurement packet discarding into a beneficial measurement outcome. Instead of simply discarding packets that exceed the delay budget and losing measurement data, the system uses the trigger condition mechanism to detect these discarding events and report them as measurement failures. This transforms the loss of measurement packets into valuable information about network performance and reliability.
Data Source
AI summary
The present disclosure relates to the technical field of 5G core networks, and provides a quality of service measurement method and device, a user plane function entity, and a computer-readable storage medium. The quality of service measurement method includes: a user plane function receiving a quality of service measurement request sent by a session management function, wherein the quality of service measurement request includes a trigger condition of a quality of service measurement failure and a measurement result of the quality of service measurement failure; the user plane function determining whether or not the trigger condition of the quality of service measurement failure is satisfied: and if so, the user plane function sending, to a control plane function, the measurement result of the quality of service measurement failure.