User Equipment State Information Reporting Optimization

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Solution Overview

Problem

In LTE communications systems, user equipment (UE) faces inefficiencies in reporting state information, leading to unnecessary data transmission and increased bandwidth usage, particularly during cell changes or handovers, as existing methods lack effective mechanisms to determine when and what state information needs to be updated.

Innovation Solution

The method involves maintaining current state information and using indicators, such as version identifiers, to determine whether to report state information to the radio access node, with the UE only transmitting updates when necessary, and utilizing timers or triggers to optimize reporting, thereby reducing unnecessary transmissions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the UE reports state information following every cell change, then the radio access node has up-to-date information, but unnecessary data transmission and increased bandwidth usage occur

Engineering Contradiction:
Improveinformation up-to-dateVSAvoidbandwidth usage
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The radio access node performs preliminary action by indicating whether it already holds current state information before the UE reports. This allows the UE to determine in advance whether reporting is necessary, avoiding unnecessary transmissions while ensuring the node has up-to-date information when needed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback through the indication mechanism where the radio access node provides feedback to the UE about its current state information holding status. This feedback loop enables the UE to adjust its reporting behavior accordingly, reducing redundant transmissions while maintaining information freshness.

Inventive Principle:
Principle #23Feedback

2Reliability

If the UE reports state information following every cell change, then the radio access node receives current information, but increased signaling overhead and processing load occur

Engineering Contradiction:
Improveinformation currentnessVSAvoidsignaling overhead
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The radio access node performs preliminary action by indicating whether it already holds current state information before the UE reports. This allows the UE to determine in advance whether reporting is necessary, avoiding unnecessary transmissions while ensuring the node has up-to-date information when needed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback through the indication mechanism where the radio access node provides feedback to the UE about its current state information holding status. This feedback loop enables the UE to adjust its reporting behavior accordingly, reducing redundant transmissions while maintaining information freshness.

Inventive Principle:
Principle #23Feedback

3Loss of substance

If the UE refrains from transmitting state information, then bandwidth is conserved, but the radio access node may not have up-to-date information

Engineering Contradiction:
Improvebandwidth conservationVSAvoidinformation up-to-date
Core Design Contradiction:
Loss of substanceVSReliability

Solution Approach 1:

The radio access node performs preliminary action by indicating whether it already holds current state information before the UE reports. This allows the UE to determine in advance whether reporting is necessary, avoiding unnecessary transmissions while ensuring the node has up-to-date information when needed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback through the indication mechanism where the radio access node provides feedback to the UE about its current state information holding status. This feedback loop enables the UE to adjust its reporting behavior accordingly, reducing redundant transmissions while maintaining information freshness.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11324055B2Processing state information
Publication Date: 2022.05.03 SAMSUNG ELECTRONICS CO LTD
  • US11324055B2 patent drawing
  • US11324055B2 patent drawing
  • US11324055B2 patent drawing

AI summary

A method of operating a user equipment in a communications system including at least one cell that is controlled by a radio access node. The method includes maintaining current state information relating to the user equipment, the state information including at least one state information part associated with features for which state information reporting is configured in at least one cell, at least one state information part being associable with a plurality of different values, receiving an indication from the radio access node regarding state information held by the radio access node relating to the user equipment, determining whether to report current state information relating to the radio access node on the basis of the received indication, and reporting a current value associated with at least a given state information part to the radio access node.