Relay Device Priority Session Management
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Solution Overview
Problem
The existing radio trunking system faces inefficiencies in switching communication due to the need to change relaying device channels for higher priority call requests, leading to delayed switching and radio wave inefficiencies when all channels are in use.
Innovation Solution
An audio communication system that connects relaying devices to terminal devices via a communication network, allowing for immediate switching to higher priority communications by managing communication sessions based on priority through a server that relays communications between terminal devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the relaying device changes channels to handle higher priority call requests, then the priority call function is achieved, but the switching time increases and radio wave efficiency deteriorates
Solution Approach 1:
The invention divides the communication system into terminal devices that perform local channel switching independently, while the relaying device manages multiple channels simultaneously. This segmentation allows priority calls to be handled without requiring the relaying device to change channels, thus reducing switching time while maintaining the priority call function.
Solution Approach 2:
The invention introduces a new dimension of channel management where the relaying device maintains multiple channels in parallel rather than switching between them sequentially. This dimensional change from time-sequential channel usage to spatial-parallel channel usage enables immediate priority call handling without channel switching delays.
2Reliability
If multiple relaying device channels are used for priority call function, then priority communication is enabled, but radio wave efficiency decreases when all channels are in use
Solution Approach 1:
The invention extracts the channel switching function from the relaying device and transfers it to the terminal devices. The relaying device retains only the function of managing multiple channels and routing communications, while terminal devices perform local channel changes. This extraction eliminates the need for the relaying device to change channels for priority calls, improving radio wave efficiency while maintaining priority communication capability.
Solution Approach 2:
The relaying device is designed to manage multiple channels simultaneously and route communications from any channel to any terminal device without requiring channel changes. This multi-functional capability allows the system to handle priority calls efficiently while maintaining optimal use of radio wave resources across all channels.
Data Source
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AI summary
[Problem] To provide am audio communication system configured such that a relaying device and terminal devices are connected via a communication network, and communication between terminal devices is managed on the relying device side on the basis of the priority of communications. [Solution] The relaying device is provided with a network communication unit, a control unit, and a priority information storage unit. A network communication unit communicates with a plurality of terminal devices via a communication network. A control unit transfers audio signals between terminal devices participating in a communication session. When a calling audio signal specifying a terminal device participating in the existing communication session as a communication partner is received, and the priority of the new communication session is higher than the existing communication session, the control unit causes the terminal device participating in the existing communication session to participate in the new communication session. The terminal devices transmit, to the relaying device, the audio signals to which transferring destination information indicating the transferring information of the audio signal has been applied.