UE Call Setup Time Measurement via Network Request

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Solution Overview

Problem

Current wireless communication networks lack the ability to measure and report call setup time from the user equipment (UE) perspective, limiting the operator's ability to trace malfunctioning UEs and optimize the radio environment, as the existing methods only provide network call setup time and not the UE's call setup time.

Innovation Solution

A method is introduced where a radio network node requests and measures the call setup time from the UE, which can then report this measurement back to the node, allowing for improved communication network performance by providing the UE's experienced call setup time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the network uses existing measurement methods to obtain call setup time, then the network can monitor call setup time from the network perspective, but the UE's actual experienced call setup time cannot be measured and reported

Engineering Contradiction:

Improvecall setup time measurementVSAvoidUE perspective call setup time information

Core Design Contradiction:

Measurement precisionVSLoss of information

Solution Approach 1:

The patent implements a feedback mechanism where the UE measures the call setup time from its perspective and reports this information back to the network node. The network node requests the measurement from the UE and receives the measured value, creating a feedback loop that provides accurate UE-experienced call setup time data to the network for analysis and optimization.

Inventive Principle:

Principle #23Feedback

2Reliability

If the operator wants to trace malfunctioning UEs and optimize the radio environment, then detailed UE call setup time data is needed, but current network-only measurement methods are insufficient

Engineering Contradiction:

ImproveUE malfunction tracing capabilityVSAvoidmeasurement and reporting mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent enables the UE to perform self-measurement of call setup time using its own internal resources and timing mechanisms. The UE independently measures the time it takes for call setup from its perspective and reports this data to the network, eliminating the need for complex external measurement systems or drive tests to gather UE-experienced timing information.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If the network relies on existing call setup time measurements, then network infrastructure is simpler, but accurate UE perspective measurement is not available

Engineering Contradiction:

ImproveUE call setup timeVSAvoidmeasurement implementation

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent leverages the UE's existing multi-functional capabilities - specifically its ability to measure various communication parameters and report to the network - to implement call setup time measurement. The UE uses its existing timing and measurement functions already employed for other communication monitoring tasks, avoiding the need for dedicated complex measurement hardware while achieving precise UE-perspective call setup time measurement.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240397360A1Measuring call set up time at ue

Publication Date: 2024.11.28 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

Embodiments herein disclose, for example, a method performed by a radio network node for communicating or handling communication in a wireless communication network. The radio network node transmits an indication requesting a UE to perform a measurement of a call setup time for the UE in the wireless communication network and/or to provide a value of the measurement to the radio network node.