LMR Network Protocol Adaptation for Interoperability
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Solution Overview
Problem
Existing land mobile radio (LMR) systems face sub-optimal performance and increased costs due to the use of a single protocol for all layers in the communication protocol stack, requiring transcoding and transcription when interconnecting systems with different protocols.
Innovation Solution
A method and system that enable communication using multiple LMR transport protocols within a single LMR network, allowing the LMR content to be configured based on an application layer protocol and processed to switch between different transport protocols, enabling communication across LMR units with varying protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single protocol is used for all layers in the communication protocol stack, then system simplicity is maintained, but performance becomes sub-optimal and costs increase due to required transcoding and transcription
Solution Approach 1:
The patent segments the communication protocol stack into multiple independent layers (transport layer and application layer), allowing each layer to use different protocols optimized for its specific function. This enables the transport layer to use protocols optimized for data transmission while the application layer uses protocols optimized for communication services, eliminating the need for transcoding and transcription while maintaining system manageability through modular design.
2Adaptability or versatility
If multiple protocols are used within a single LMR network, then system flexibility and performance improve, but device complexity increases
Solution Approach 1:
The patent introduces protocol adaptation layers and gateway devices that act as intermediaries between different protocol domains. These intermediaries handle protocol translation, mapping, and adaptation transparently, allowing multiple protocols to coexist in the network without requiring every device to support all protocols directly. This reduces overall system complexity while maintaining protocol flexibility.
Solution Approach 2:
The patent designs network infrastructure components with multi-functionality, enabling them to operate across multiple protocol domains. For example, base stations and network controllers are configured to support multiple transport protocols simultaneously, allowing them to serve diverse LMR units with different protocol requirements through a single unified infrastructure, thereby reducing the need for separate specialized devices for each protocol.
3Adaptability or versatility
If transcoding and transcription are performed to interconnect systems with different protocols, then system interoperability is achieved, but costs increase and performance deteriorates
Solution Approach 1:
The patent changes the dimensional approach to protocol interoperability by introducing a vertical layering dimension to the horizontal protocol compatibility problem. Instead of attempting horizontal compatibility across all protocol layers, the solution operates vertically within the protocol stack, allowing different protocols at different layers to coexist and interact through defined interfaces, thereby achieving interoperability without traditional transcoding.
Data Source
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AI summary
A multiple protocol land mobile radio (LMR) and a method for communicating LMR content are provided. The method includes communicating (108) the LMR content (130) using a plurality of LMR transport protocols within a single LMR network (42). The method further includes configuring (106) the LMR content (130) based on an LMR application layer protocol for a portion of the single LMR network (42) through which the LMR content (130) is to be communicated.