Mobile Terminal Call Diversion Without Dispatcher

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Solution Overview

Problem

Conventional trunked communication systems require a dispatcher station for call diversion, limiting the mobile terminal's ability to implement call diversion independently and restricting its functionality to basic call services and information transmission.

Innovation Solution

A method and system that enables call diversion among mobile terminals without a dispatcher station, where the requesting terminal sets and sends a message for call diversion to the target terminal, which validates the diversion identifier and address, and acknowledges successful diversion, allowing the requesting terminal to establish call diversion directly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a dispatcher station is used to implement call diversion, then call diversion functionality is achieved, but the mobile terminal's autonomy and functionality are limited

Engineering Contradiction:
Improvecall diversion functionalityVSAvoiddispatcher station requirement
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts the call diversion control functionality from the centralized dispatcher station and relocates it to the mobile terminal itself. The terminal now independently manages its own call diversion settings, target address storage, and diversion execution, eliminating the mandatory dependency on the dispatcher station while maintaining the call diversion capability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The mobile terminal is empowered to serve itself in call diversion operations. It autonomously stores target addresses, determines whether to divert calls based on its own state (busy, battery status), and executes diversion decisions without requiring dispatcher station intervention, thereby enhancing terminal autonomy and reducing system complexity.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If the mobile terminal sends target address to dispatcher station for call diversion setup, then call diversion is established, but the terminal remains passive and controlled by the dispatcher station

Engineering Contradiction:
Improvecall diversion establishmentVSAvoidterminal autonomy
Core Design Contradiction:
Ease of operationVSExtent of automation

Solution Approach 1:

The patent inverts the traditional control relationship by making the mobile terminal the active controller rather than the passive participant. Instead of the terminal sending requests to the dispatcher station, the terminal now actively manages call diversion by storing target addresses locally and making autonomous diversion decisions based on its operational state.

Inventive Principle:
Principle #13The other way round (Inversion)

3Adaptability or versatility

If dispatcher station controls call diversion process, then call diversion is implemented, but terminal functionality is restricted to basic call services

Engineering Contradiction:
Improvecall management functionalityVSAvoidsystem architecture
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mobile terminal is designed to perform multiple functions including basic call services, target address management, call state monitoring, and autonomous call diversion control. This multi-functionality eliminates the need for the dispatcher station's call diversion management role, allowing the terminal to operate independently with enhanced versatility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP2938104B1Method, terminal, and system for implementing call forwarding
Publication Date: 2020.07.01 HYTERA COMM CORP
  • EP2938104B1 patent drawingFigure 1
  • EP2938104B1 patent drawingFigure 2
  • EP2938104B1 patent drawingFigure 3

AI summary

Disclosed are a method, a terminal, and a system for implementing call forwarding. The method comprises: when a call access anomaly of a request terminal occurs, setting and sending call forwarding request information to a target terminal (101); the target terminal reading a call forwarding identification in the call forwarding request information, determining whether the call forwarding identification is correct, and if yes, reading an address of the target terminal in the call forwarding request information (102); the target terminal determining whether the address of the target terminal is correct, and if yes, reading a forwarding address identification in the call forwarding request information, setting a forwarding terminal address according to the forwarding address identification, and setting and sending call forwarding success response information to the request terminal (103); and the request terminal receiving the call forwarding success response information and setting up call forwarding (104). The present invention also provides a terminal and a system which are adapted to the method. Call forwarding can be implemented between mobile terminals without a dispatcher, and a user can adopt different forwarding address identifications to meet requirements of different application scenarios according to demands.