Mobile Communication Controller Cell Reselection Resource Release

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

When a mobile communication terminal performs cell reselection from a first communication system to a second, the communication resource of the first system remains reserved, leading to redundant resources.

Innovation Solution

A mobile communication controller is configured to receive a control signal from the terminal indicating its previous system and transmit an instruction to release the communication resource of the first system, ensuring resources are freed before switching.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the mobile communication terminal performs cell reselection from the first communication system to the second communication system, then the terminal can switch to a more suitable communication system, but the communication resource of the first communication system remains reserved as a redundant resource

Engineering Contradiction:
Improvecell reselection capabilityVSAvoidredundant communication resource
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The terminal transmits the control signal indicating previous system location before actually switching systems. The second communication system then proactively releases resources from the first system in advance, preventing resource redundancy before it occurs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The terminal provides feedback information (control signal) about its previous system location to the second communication system. This feedback enables the second system to take appropriate action to release resources from the first system, optimizing resource management.

Inventive Principle:
Principle #23Feedback

2Reliability

If the communication resource of the first communication system remains reserved until the terminal requests release, then the terminal maintains service continuity, but the communication resource becomes a redundant resource

Engineering Contradiction:
Improveservice continuityVSAvoidresource utilization efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The terminal feeds back information about its cell reselection to the second communication system, which then actively manages resource release in the first system. This feedback mechanism enables proactive resource optimization while maintaining service continuity.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The second communication system autonomously initiates the resource release process in the first system based on the terminal's control signal, without waiting for the terminal to explicitly request resource release. This self-service approach optimizes resource utilization while maintaining service continuity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2493242B1Mobile communication control device, mobile communication system, and mobile communication method
Publication Date: 2018.12.12 NTT DOCOMO INC
  • EP2493242B1 patent drawingFigure 1
  • EP2493242B1 patent drawingFigure 2~3
  • EP2493242B1 patent drawingFigure 4

AI summary

A mobile communication terminal 10 is configured to transmit a control signal indicating a request for cell reselection to the second communication system to the first communication system before a communication resource of the second communication system is reserved while the mobile communication terminal was located in the first communication system. The first communication system releases a communication resource of the first communication system in response to the control signal indicating the request for cell reselection to the second communication system even before the communication resource of the second communication system is reserved.