Group Communication Management Device Non-Participation Reason Segmentation

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Solution Overview

Problem

Conventional radio communication systems fail to provide detailed information on the communication status of group communication, particularly in cases where a mobile station cannot participate despite being within the service range, leading to incomplete participation insights.

Innovation Solution

A management device and terminal device configuration that acquires and processes response information to identify participation status in group communication, differentiating between refusal and non-response scenarios, and displays participation information for each terminal device in a distinct manner.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the system only checks whether mobile stations are within service range, then the detection process is simple, but the information on communication status is incomplete

Engineering Contradiction:

Improvecommunication status informationVSAvoiddetection process complexity

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The patent segments the non-participation reason into multiple distinct factors: (1) mobile station outside service range, (2) mobile station within service range but cannot participate, (3) call-destination terminal refused participation, and (4) call-destination terminal did not respond within predetermined time. This segmentation allows comprehensive information collection without overly complicating the detection process, as each factor can be checked through specific signaling interactions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary actions by having the management device acquire response information from call-destination terminals before finalizing group communication setup. The system sends group communication start requests to call-destination terminals and waits for their responses, thereby proactively gathering participation status information rather than discovering it later.

Inventive Principle:

Principle #10Preliminary action

2Loss of information

If the system provides detailed participation information for all terminals, then user awareness is enhanced, but the information processing load increases

Engineering Contradiction:

Improveparticipation status informationVSAvoidinformation processing time

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

The patent extracts only the essential participation status information from call-destination terminals, specifically whether they accepted or refused group communication and their response timing. This extraction approach provides sufficient information for user awareness without processing unnecessary data, thereby reducing information processing time while maintaining comprehensive status reporting.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by providing differentiated information display based on terminal types and participation statuses. The management device tailors the information provided to specific call-destination terminals according to their response patterns, rather than uniformly processing all terminals in the same manner, thereby optimizing information processing efficiency.

Inventive Principle:

Principle #3Local quality

3Reliability

If the system waits for response from all terminals before starting group communication, then participation accuracy is improved, but the communication setup time increases

Engineering Contradiction:

Improveparticipation status accuracyVSAvoidcommunication setup time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent implements partial action by not requiring responses from all potential participants before initiating group communication. Instead, the management device starts group communication when responses are received from sufficient terminals within a predetermined time period, allowing the communication to proceed with the participating terminals while still gathering participation information from others.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent uses feedback mechanisms by monitoring response information from call-destination terminals in real-time and adjusting the group communication start decision based on the accumulated responses. The management device receives feedback on terminal participation status and uses this information to determine when to initiate communication, balancing accuracy with time efficiency.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11265969B2Management device, terminal device, and non-transitory storage medium

Publication Date: 2022.03.01 JVC KENWOOD CORP

AI summary

A management device including an acquirer configured to acquire response information indicating whether a call-destination terminal has accepted participation in group communication, and terminal operation information indicating whether the call-destination terminal is in a state capable of receiving the group communication, a processor configured to create communication result information including participation information on the call-destination terminal whether to participate in the group communication, and a transmitter configured to transmit the communication result information, wherein, in a case of non-participation where the call-destination terminal has not participated in the group communication, the processor is configured to create the participation information that makes it possible to identify at least two factors of the non-participation.