Wireless Navigation Receiver Test via Assistance Data

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Solution Overview

Problem

Testing navigation receivers embedded in communication devices requires a wired connection, increasing test time and complicating automation in manufacturing, especially since hardware components need reconfiguration and a full position fix is required.

Innovation Solution

A method involving connecting the communication device to test equipment, sending navigation assistance data via wireless communication to program the receiver in test mode, and processing test signals to enable wireless testing, allowing for faster and automated navigation receiver testing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a wired connection is used to test the navigation receiver, then the testing can be performed with full position fix, but the test time increases and automation becomes more complex

Engineering Contradiction:
Improvetesting accuracyVSAvoidtest time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the mechanical wired connection system with a wireless communication system. The test equipment communicates with the navigation receiver through wireless signals, eliminating the need for physical cables and wired connections while maintaining testing functionality. This substitution reduces test time and simplifies automation without compromising testing reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a wired connection is used to test the navigation receiver, then the testing can be performed with full position fix, but the device complexity increases

Engineering Contradiction:
Improvetesting accuracyVSAvoidtesting system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical wired connection system with a wireless communication system. The test equipment communicates with the navigation receiver through wireless signals, eliminating the need for physical cables and wired connections while maintaining testing functionality. This substitution reduces test time and simplifies automation without compromising testing reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Manufacturing precision

If hardware components are reconfigured for testing, then the testing can be performed accurately, but the test time increases

Engineering Contradiction:
Improvetesting accuracyVSAvoidtest time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent implements preliminary action by pre-configuring the navigation receiver to operate in test mode through wireless assistance data. The receiver is programmed to accept test signals and provide test outputs before actual testing begins, eliminating the need for time-consuming hardware reconfiguration during the testing process. This maintains testing accuracy while significantly reducing test time.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If a full position fix is required for testing, then the navigation receiver functionality can be validated completely, but the test time increases

Engineering Contradiction:
Improvevalidation completenessVSAvoidtest time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements preliminary action by pre-configuring the navigation receiver to operate in test mode through wireless assistance data. The receiver is programmed to accept test signals and provide test outputs before actual testing begins, eliminating the need for time-consuming hardware reconfiguration during the testing process. This maintains testing accuracy while significantly reducing test time.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS8150388B2Method for testing a navigation receiver
Publication Date: 2012.04.03 KEYSIGHT TECHNOLOGIES INC
  • US8150388B2 patent drawing
  • US8150388B2 patent drawing
  • US8150388B2 patent drawing

AI summary

The present invention is related to a method for testing a navigation receiver comprised in a communication device, whereby the communication device further comprises a device for mobile wireless communication. The method comprises the steps of:connecting the communication device to a test equipment device,sending navigation assistance data information comprising test configuration data from the test equipment device via the device for mobile wireless communication to the navigation receiver over an assistance data communication port in order to initiate a test procedure,sending test navigation ranging signals from the test equipment device to the navigation receiver,processing the test navigation ranging signals in the navigation receiver,sending a message concerning the test procedure in response from the navigation receiver to the device for wireless mobile communication,feeding back the message to the test equipment device.