Transmission Management System Approval Mechanism
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Solution Overview
Problem
Users face issues when their transmission terminals are added to another user's destination list without approval, leading to unwanted start requests for telephone calls in TV conference systems over communication networks.
Innovation Solution
A transmission management system that manages communication between request source and destination terminals by sending start requests and requiring approval from the destination terminal before adding it to the destination list, ensuring that users' terminals are only included with their consent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user's terminal is automatically added to another user's destination list without approval, then the destination list can be easily updated with new candidates, but the user receives unwanted start requests for telephone calls
Solution Approach 1:
The system sends an approval request to the terminal to be added before actually adding it to the destination list. This preliminary action (approval request) prevents unwanted additions by obtaining consent in advance, resolving the contradiction between easy updates and preventing harmful unwanted requests.
2Reliability
If approval requests are sent to all terminals before adding them to the destination list, then unauthorized additions are prevented, but the communication protocol becomes more complex
Solution Approach 1:
The approval request functionality is extracted as a separate, optional step in the destination list management process. This allows the system to maintain simple automatic addition for trusted scenarios while enabling controlled approval processes when needed, thus preventing protocol complexity from becoming universal while maintaining reliability where required.
Data Source
AI summary
A transmission management system receives, from a request source terminal which is an addition request source requesting to add a certain transmission terminal as a destination candidate, an addition request for the destination candidate, identification information of the request source terminal and identification information of a request target terminal which is an addition request target of the destination candidate; and informs the request target terminal of an approval request for requesting the request target terminal to approve the addition request, and the identification of the request source terminal. The system receives an addition request response from the request target terminal in response to the addition request. When the addition request response indicates to approve the addition request, the system additionally associates the identification information of the request target terminal with the identification information of the request source terminal as the identification information of the destination terminal.