Wireless Device Radio Measurement Relaxation Report Triggering

Solution Overview

Problem

The current challenge in wireless communication systems is the inefficient reporting of radio resource management (RRM) measurement relaxation criteria, leading to unnecessary radio resource consumption and power usage in user equipment (UE).

Innovation Solution

A method is introduced where a wireless device determines a continuous time-to-trigger duration for RRM measurement relaxation criteria and only transmits a radio measurement relaxation report to the network when the criterion has been met for this duration, ensuring timely and necessary reporting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE sends RRM measurement relaxation reports as soon as conditions are fulfilled, then the network receives timely information, but the UE consumes unnecessary radio resources and power

Engineering Contradiction:

Improvetimely reportingVSAvoidUE power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies preliminary action by introducing a time-to-trigger (TTT) parameter that is configured in advance. The UE monitors the RRM measurement relaxation conditions continuously and only sends a report after the condition has been met for the pre-configured TTT duration. This preliminary setup prevents immediate reporting upon condition fulfillment, thereby avoiding unnecessary reports while ensuring timely network awareness through the TTT mechanism.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the UE sends RRM measurement relaxation reports as soon as conditions are fulfilled, then the network receives timely information, but the UE consumes unnecessary radio resources

Engineering Contradiction:

Improvetimely reportingVSAvoidradio resource consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent applies preliminary action by introducing a time-to-trigger (TTT) parameter that is configured in advance. The UE monitors the RRM measurement relaxation conditions continuously and only sends a report after the condition has been met for the pre-configured TTT duration. This preliminary setup prevents immediate reporting upon condition fulfillment, thereby avoiding unnecessary reports while ensuring timely network awareness through the TTT mechanism.

Inventive Principle:

Principle #10Preliminary action

3Use of energy by moving object

If relaxed RRM measurements are performed, then UE power consumption is reduced, but measurement accuracy is reduced

Engineering Contradiction:

ImproveUE power consumptionVSAvoidmeasurement accuracy

Core Design Contradiction:

Use of energy by moving objectVSMeasurement precision

Solution Approach 1:

The patent applies dynamics by making the measurement relaxation state changeable based on network feedback. The network can dynamically adjust whether relaxed measurements should be applied by sending reconfiguration messages to the UE. This dynamic control allows the system to adapt measurement frequency and accuracy levels according to actual network conditions and service requirements, balancing power savings with measurement accuracy needs.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20250119777A1Reduction of unnecessary radio measurement relaxation reports

Publication Date: 2025.04.10 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

A method of operating a wireless device in a communication network includes determining that a criterion associated with radio measurement relaxation has been met for a continuous time to trigger, TTT, duration, wherein the continuous TTT duration is greater than zero, and, in response to determining that the criterion associated with radio measurement relaxation has been met for the continuous TTT duration, transmitting a radio measurement relaxation report to a radio access network, RAN, node indicating that the criterion associated with radio measurement relaxation has been met.