Distributed Repeater Location Registration for Radio Client Devices

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Solution Overview

Problem

In distributed trunking radio communication systems, the process of location registration for multiple radio client devices is time-consuming due to the need for sequential registration, as repeaters cannot conduct simultaneous location registrations for multiple devices.

Innovation Solution

A radio communication system with multiple repeaters connected via communication lines, where each repeater transmits a usage condition signal, allowing radio client devices to scan and request registration from available repeaters, and repeaters share location information across communication areas to facilitate simultaneous registration processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single repeater conducts location registration sequentially for multiple radio client devices, then the repeater can maintain simple control logic, but the location registration process becomes time-consuming and reduces system productivity

Engineering Contradiction:

Improvelocation registration speedVSAvoidrepeater control complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the location registration function across multiple repeaters (first repeater and second repeater) instead of concentrating it in a single repeater. The first repeater handles registration for radio client devices in its communication area, while the second repeater handles registration for radio client devices in its communication area. This segmentation enables parallel processing of location registration requests, significantly improving registration speed and system productivity without overloading a single repeater with complex sequential control logic.

Inventive Principle:

Principle #1Segmentation

2Productivity

If multiple radio client devices request location registration simultaneously at the same repeater, then the repeater becomes a bottleneck, but distributing registration across multiple repeaters increases system complexity

Engineering Contradiction:

Improveregistration throughputVSAvoidsystem architecture complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system segments the registration workload by assigning different repeaters to different communication areas. The first repeater serves radio client devices in its designated communication area, while the second repeater serves radio client devices in its designated communication area. This spatial segmentation allows simultaneous registration requests from multiple radio client devices to be handled in parallel across different repeaters, increasing registration throughput without creating a single point of congestion.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces communication areas as intermediary zones that mediate between radio client devices and repeaters. Each communication area is associated with a specific repeater that acts as an intermediary handler for location registration requests from devices within that area. This intermediary structure organizes the system architecture to distribute registration load while maintaining manageable complexity through clear area-repeater associations.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Loss of time

If a repeater conducts location registration for one radio client device before another, then the repeater can process requests sequentially with simple logic, but multiple devices waiting for registration experience long delays

Engineering Contradiction:

Improveregistration waiting timeVSAvoidregistration process simplicity

Core Design Contradiction:

Loss of timeVSEase of operation

Solution Approach 1:

The patent segments the registration processing function across multiple repeaters, allowing different radio client devices to be registered simultaneously in different communication areas. The first repeater processes registration requests from radio client devices in its communication area, while the second repeater processes registration requests from radio client devices in its communication area. This segmentation eliminates the sequential bottleneck and significantly reduces registration waiting time for multiple devices.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system prepares multiple repeaters in advance to handle registration requests concurrently. By having the first repeater and second repeater ready to process registration requests simultaneously for different communication areas, the system performs preliminary preparation of registration capacity, allowing multiple radio client devices to be registered without long waiting times while maintaining simple sequential processing logic at each individual repeater.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS9161173B2Radio communication system, location registration method, repeater, and radio client device

Publication Date: 2015.10.13 ICOM INC

AI summary

A radio client device scans a channel allocated to a predetermined repeater, and transmits a request for location registration to the predetermined repeater in a case of detecting a usage condition signal. A repeater, in a case of receiving a request for location registration from a radio client device, conducts location registration for the radio client device, transmits information about the radio client device whose location is registered to a predetermined repeater in a communication area of the repeater or to a predetermined repeater in a different communication area, and in a case of receiving information about a radio client device whose location is registered from another repeater in the communication area of the repeater, transmits information about the radio client device whose location is registered to the predetermined repeater in the different communication area.