Dual-Receiver Wireless Communication Detection for Extraneous Signal Response

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing limited spectrum bandwidth due to interference from extraneous signals like noise and radar, requiring lengthy channel availability checks that disrupt communication and risk race conditions when base stations autonomously change channels.

Innovation Solution

Implementing a wireless communication system with dual receiver chains for in-channel and out-of-channel monitoring, allowing simultaneous detection of extraneous signals without disrupting communication, and using pre-allocated backup channels for rapid frequency changes to avoid interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If base stations perform channel availability checks before changing channels, then compliance with regulatory requirements is ensured, but communication interruptions are prolonged and productivity decreases

Engineering Contradiction:

Improvecompliance with regulatory requirementsVSAvoidcommunication continuity

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system performs channel availability checks in advance for backup channels and maintains pre-validated channel lists. When interference is detected on the current channel, the base station can immediately switch to a pre-validated backup channel without performing a new availability check, thus ensuring compliance while minimizing communication interruptions

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system maintains multiple backup channels that have already passed availability checks as a cushion against potential interference. This pre-prepared buffer of valid alternative channels ensures that when the current channel becomes unusable, the system can rapidly switch without interruption to communication services

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Speed

If base stations autonomously change channels upon detecting extraneous signals, then response speed is improved, but race conditions occur and system reliability deteriorates

Engineering Contradiction:

Improveresponse speed to extraneous signalsVSAvoidsystem coordination

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The system implements a centralized controller that receives feedback from all base stations about detected extraneous signals. The controller coordinates channel changes across the network, managing the transition process to avoid race conditions while maintaining rapid response to interference, thus preserving both speed and reliability

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

A centralized controller acts as an intermediary between base stations and the channel change process. When a base station detects interference, it reports to the controller which then manages the coordinated channel reassignment across the network, preventing conflicting autonomous actions while enabling rapid response

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If single receiver chain is used for channel monitoring, then device complexity is reduced, but detection accuracy and reliability worsen due to inability to monitor multiple channels simultaneously

Engineering Contradiction:

Improvereceiver chain configurationVSAvoidextraneous signal detection accuracy

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The receiver function is segmented into multiple independent receiver chains, each capable of monitoring specific channels simultaneously. This segmentation allows the system to monitor both the current operating channel and backup channels at the same time, improving detection accuracy without requiring a single complex monolithic receiver

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4221420B1Wireless communication system with detectors for extraneous received signals

Publication Date: 2025.07.30 OCADO INNOVATION LTD

Figure 1~2
Figure 3
Figure 4

AI summary

A wireless communication system, which may be included in a warehouse facility, comprising base stations, remotely located terminal units and a base station controller. The base stations and the remotely located terminal units communicate data over operational wireless communication links between them. The base stations include respective in-channel detectors and out-of-channel detectors for detecting radar or other extraneous received signals. The in-channel detectors analyse signals over the operational communication links. The out-of-channel detectors include respective out-of-channel receiver elements that monitor possibly available channels alternative to the respective operational communication link channels. The base station controller registers whether channels are available or not for communication links, and allocates to the base stations respective target channel parameters including frequencies available for operational and alternative communication links. The base stations store the respective target channel parameters for available operational and alternative communication links.