UE Mobility Reporting Feedback Loop for Signaling Reduction

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Solution Overview

Problem

Current wireless communication systems face challenges in accurately reporting mobility information from user equipment (UE) to the network, leading to inadequate network configuration and potential excessive signaling overhead, as the network may not know if the UE has valid mobility information or if it has been updated.

Innovation Solution

A method where the UE determines whether to report its mobility information, transmitting a mobility information available indication to the network, and reports it if the information has changed or if permitted by network control, ensuring the network receives valid and updated mobility data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the user equipment continuously reports mobility information to the network, then the network can have up-to-date mobility data for optimization, but the signaling overhead and power consumption increase

Engineering Contradiction:
Improvemobility information freshnessVSAvoidpower consumption
Core Design Contradiction:
Loss of informationVSLoss of energy

Solution Approach 1:

The network requests mobility information from the user equipment based on feedback about whether the UE has updated mobility information. The UE indicates whether it has valid mobility information to report, and the network selectively requests reporting based on this indication, creating a feedback loop that reduces unnecessary transmissions while ensuring information freshness when needed.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Instead of continuous reporting, the system implements periodic reporting triggered by specific conditions. The user equipment reports mobility information periodically or event-driven when changes occur, rather than continuously, reducing power consumption while maintaining network awareness of mobility state changes.

Inventive Principle:
Principle #19Periodic action

2Loss of information

If the network requests mobility information frequently, then the network ensures it has current data, but the signaling overhead increases

Engineering Contradiction:
Improvemobility information availabilityVSAvoidsignaling overhead
Core Design Contradiction:
Loss of informationVSQuantity of substance

Solution Approach 1:

The user equipment performs preliminary assessment of whether it has updated mobility information before the network requests it. The UE determines in advance whether mobility information has changed and is ready for reporting, allowing the network to skip requests when no new information is available, thus reducing signaling overhead.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where the UE indicates to the network whether it has valid mobility information to report. This feedback allows the network to intelligently decide whether to request mobility information, avoiding unnecessary signaling when the UE has not updated its mobility state.

Inventive Principle:
Principle #23Feedback

3Loss of information

If the user equipment reports all mobility information updates, then the network receives complete mobility data, but the processing complexity and signaling overhead increase

Engineering Contradiction:
Improvemobility information completenessVSAvoidreporting complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The system extracts and reports only the essential mobility information that has actually changed, rather than reporting all mobility parameters continuously. The user equipment determines whether mobility information has been updated and reports only when necessary, reducing reporting complexity while maintaining information completeness for network optimization.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS9629015B2Method for reporting mobility information in wireless communication system and device for supporting same
Publication Date: 2017.04.18 LG ELECTRONICS INC
  • US9629015B2 patent drawing
  • US9629015B2 patent drawing
  • US9629015B2 patent drawing

AI summary

A method for reporting mobility information by a terminal in a wireless communication system is provided. The method comprises: determining whether or not mobility information is reported, wherein the mobility information indicates a mobility state of the terminal; and reporting the mobility information to a network if it is determined that the mobility information is reported.