Relaxed Measurement Reporting for Control Plane Dual Connectivity

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Solution Overview

Problem

Current dual connectivity technologies do not fully exploit the benefits of dual connectivity, particularly for control signaling, leading to increased energy consumption and interference due to excessive measurement reporting in wireless devices using multiple radio links.

Innovation Solution

Implementing relaxed measurement reporting settings based on the control plane connectivity mode, reducing the number of measurement reports and optimizing energy usage and resource allocation by selecting appropriate measurement report settings based on latency thresholds and other criteria.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dual connectivity is implemented for control plane signaling, then reliability and coverage are improved, but energy consumption increases due to excessive measurement reporting

Engineering Contradiction:
Improvecontrol plane signaling reliabilityVSAvoidwireless device energy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic measurement reporting by adjusting reporting behavior based on the connectivity mode. When dual connectivity is active, the system dynamically relaxes measurement reporting requirements compared to single connectivity mode, allowing the wireless device to reduce energy consumption while maintaining the reliability benefits of dual connectivity for control plane signaling.

Inventive Principle:
Principle #15Dynamics

2Reliability

If dual connectivity is implemented for control plane signaling, then coverage and robustness are improved, but interference increases due to excessive measurement reports

Engineering Contradiction:
Improvecontrol plane signaling robustnessVSAvoidradio interference
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system dynamically adjusts measurement reporting configurations based on the active connectivity mode. When dual connectivity is detected, the wireless device applies relaxed reporting settings that reduce the number and frequency of measurement reports, thereby minimizing radio interference while preserving the robustness and coverage advantages of dual connectivity.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If standard measurement reporting is used in dual connectivity mode, then measurement accuracy is maintained, but resource utilization decreases due to excessive reporting overhead

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidresource utilization efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent applies different measurement reporting quality levels based on the connectivity mode. In dual connectivity mode, the system uses relaxed reporting settings that maintain sufficient measurement accuracy for network operation while reducing the overhead and improving resource utilization. The specific reporting parameters are locally optimized for the dual connectivity scenario.

Inventive Principle:
Principle #3Local quality

4Use of energy by moving object

If relaxed measurement reporting is applied, then energy consumption and interference are reduced, but adaptability to different connectivity modes decreases

Engineering Contradiction:
Improvewireless device energy consumptionVSAvoidconnectivity mode adaptability
Core Design Contradiction:
Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The system enhances adaptability by dynamically selecting measurement reporting configurations based on the detected connectivity mode. The wireless device can switch between standard reporting settings for single connectivity and relaxed settings for dual connectivity, ensuring optimal energy efficiency and performance adaptation to different operational scenarios.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3289803B1Relaxed measurement reporting with control plane dual connectivity
Publication Date: 2019.06.12 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • EP3289803B1 patent drawingFigure 1a~1b
  • EP3289803B1 patent drawingFigure 2a~2b
  • EP3289803B1 patent drawingFigure 3a~3c

AI summary

The disclosure relates to reporting measurements and in particular to relaxed measurement reporting when the wireless device is using multiple radio links for the control plane. The disclosure relates to methods of reporting measurement and of controlling reporting of measurements, as well as to devices and computer programs configured thereto. According to some aspects the disclosure relates to a method, performed in a wireless device in a wireless communication system, for reporting measurements. The method comprising receiving S1, from a radio network node, information defining at least one further measurement report setting for measurement reporting in a control plane multi connectivity mode; wherein the at least one further measurement report setting corresponds to a more relaxed measurement reporting than a first measurement report setting for measurement reporting in a control plane single connectivity mode, which is available to the wireless device, selecting S2 one of the first and further measurement report settings based on a determination of a control plane connectivity mode of the wireless device; wherein the wireless device is in the control plane multi connectivity mode when the wireless device is using multiple radio links for the control plane and reporting S4, to the radio network node, measurements in accordance with the selected measurement report setting.