Wireless Multi-Node Channel Testing for Coverage and Interference

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Solution Overview

Problem

Existing spectrum testing instruments face limitations in testing accuracy and depth due to wired connections and manual real-time acquisition methods, failing to uncover coverage or interference problems thoroughly.

Innovation Solution

A test device comprising a master node with a wireless transceiver and analyzing module, and multiple slave nodes with wireless transceivers and parsing modules, enabling wireless communication and flexible arrangement to improve testing accuracy and depth by extending acquisition time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If wired connections and manual real-time acquisition methods are used, then the testing instrument can be operated manually in real time, but the testing accuracy and depth are insufficient and cannot thoroughly uncover coverage or interference problems

Engineering Contradiction:

Improvetesting accuracyVSAvoidtesting efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The testing system is divided into multiple slave nodes distributed across different locations, each independently acquiring signal data. This segmentation allows parallel testing across multiple areas simultaneously, improving both accuracy through multiple measurement points and efficiency through concurrent operations

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Manual real-time acquisition and wired connections are replaced with wireless transmission technology. Slave nodes automatically acquire and transmit signal data wirelessly to the master node, eliminating the need for manual operations and physical cable connections, thereby improving testing efficiency while maintaining high measurement precision

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Duration of action of moving object

If wired connections are used for signal transmission, then the master unit can process signals in real time, but the testing methods face significant time limitations and cannot meet required testing depth standards

Engineering Contradiction:

Improveacquisition timeVSAvoidtesting depth

Core Design Contradiction:

Duration of action of moving objectVSMeasurement precision

Solution Approach 1:

Slave nodes continuously acquire and buffer signal data in advance before analysis is required. This preliminary data collection extends the effective acquisition time window, allowing the system to perform deeper analysis on accumulated data without real-time processing constraints, thereby improving testing depth

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Wired real-time signal transmission is replaced with wireless data transmission from distributed slave nodes. This substitution removes the time limitations imposed by wired connection constraints and enables extended acquisition periods for deeper testing analysis

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If manual carrying testing is used, then the testing instrument can be moved to different locations, but the testing accuracy and depth are insufficient to fully uncover problems

Engineering Contradiction:

Improvetesting flexibilityVSAvoidtesting accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The testing system is segmented into multiple independent slave nodes that can be independently deployed at different locations. Each node performs local signal acquisition with high precision, and results are aggregated at the master node, maintaining both operational flexibility and high measurement accuracy

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Manual carrying of a single testing instrument is replaced with automatically deployed slave nodes equipped with wireless transmission. This substitution maintains the flexibility of mobile testing while significantly improving accuracy through automated high-precision signal acquisition and analysis at multiple distributed points

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP4597852A1Test device, method and apparatus, and computer-readable storage medium

Publication Date: 2025.08.06 CHINA MOBILE GROUP DESIGN INST

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AI summary

Disclosed in the embodiments of the present application are a test device, method and apparatus. and a computer-readable storage medium, The test device at least comprises a master node and a plurality of slave nodes, wherein the master node at least comprises a first wireless transceiving module and an analysis module, the first wireless transceiving module being configured to receive pieces of channel data., which are sent from each of the plurality of slave nodes, and the analysis module being configured to perform analysis processing on each piece of channel data, so as to obtain a test value for a reference channel index, and each of the plurality of slave nodes at least comprises a second wireless transceiving module and a parsing module, the second wireless transceiving module being configured to collect a radio air interface signal corresponding to each of the plurality of slave nodes, the parsing module being configured to perform parsing processing on the radio air interface signal corresponding to each of the plurality of slave nodes, so as to obtain channel data of each of the plurality of slave nodes, and the second wireless transceiving module being further configured to send the channel data of each of the plurality of slave nodes to the master node.