Push-to-Talk Gateway for Cross-Network Half-Duplex Communication
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Solution Overview
Problem
Operators using call-and-response communication channels do not always have access to communication terminals capable of communicating on the network where the channels are open, leading to communication barriers between different networks.
Innovation Solution
A communication system with a communication accessory that acts as a relay between terminals on different networks, allowing half-duplex communication channels to be integrated into a single communication group without modifying the terminals' electronic architecture, using a shared communication protocol and converting audio signals between networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If terminals use different communication networks with different protocols, then each terminal can operate on its native network, but communication between terminals on different networks is blocked
Solution Approach 1:
The patent introduces a gateway as an intermediary device between terminals on different communication networks. The gateway translates messages between different protocols (e.g., LTE protocol and Wi-Fi protocol), enabling seamless communication between terminals without requiring the terminals themselves to be modified. This resolves the contradiction by maintaining network-specific operation while enabling cross-network communication.
Solution Approach 2:
The gateway is designed with multi-functionality to handle multiple communication protocols simultaneously. It can receive messages from terminals on one network using their native protocol, translate them, and forward to terminals on another network. This universal capability allows the system to maintain adaptability to different networks while providing ease of operation across network boundaries.
2Adaptability or versatility
If terminals are modified to support multiple networks, then cross-network communication is enabled, but device complexity and cost increase
Solution Approach 1:
Instead of modifying terminals to support multiple protocols, the patent places the protocol translation function in a separate gateway device. This keeps terminal architecture simple while achieving cross-network communication capability. The gateway handles all the complexity of multiple protocol support, leaving terminals unchanged and simple.
Solution Approach 2:
The system is segmented into two parts: simple terminals that only need to support their native network protocol, and a sophisticated gateway that handles protocol translation. This segmentation allows terminals to remain simple while the system as a whole achieves cross-network capability, resolving the contradiction between adaptability and device complexity.
3Adaptability or versatility
If a gateway translates messages between protocols, then communication between different networks is enabled, but message transmission time increases
Solution Approach 1:
The gateway pre-establishes protocol translation rules and message format mappings between different networks before actual communication occurs. By preparing translation templates and protocol conversion parameters in advance, the gateway can perform real-time message translation with minimal processing delay, reducing the time loss associated with protocol conversion.
Data Source
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AI summary
Examples illustrate a method of alternating communication between at least four communication terminals. Other examples also illustrate a terminal adapted for connection to a communication accessory and a communication accessory adapted for connection to two terminals on two different communication networks.