Self-Terminating Test Sequences for Wireless Transceiver Testing
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Solution Overview
Problem
Current wireless device test systems require increasingly sophisticated testers to handle devices with varied performance characteristics, leading to high manufacturing costs and complex communication interactions between testers and DUTs, which can be costly and time-consuming.
Innovation Solution
A system and method that utilize external control circuitry to manage the execution of self-terminating test control sequences in a tester, allowing for efficient testing of RF data packet transceivers without the need for specialized hardware or firmware modifications in the DUT, by using a controller to initiate and manage test sequences via control signals, reducing the complexity and cost of testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If increasingly sophisticated testers are used to handle devices with varied performance characteristics, then test accuracy and versatility are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The test control functionality is segmented into separate self-contained test control sequences that can be independently stored and executed. Each sequence is triggered by external events, allowing the tester to handle multiple different test scenarios without requiring a single complex monolithic control system. This segmentation enables the tester to maintain simplicity while achieving versatility through modular, event-triggered sequence execution.
2Measurement precision
If complex communication interactions are implemented between tester and DUT, then test precision and control are improved, but test time and communication overhead increase
Solution Approach 1:
Test control sequences are pre-configured and stored in the tester before actual testing begins. The sequences contain all necessary control logic and measurement parameters, so when an external trigger event occurs, the pre-prepared sequence can be executed immediately without requiring complex real-time communication negotiations. This preliminary preparation maintains test precision while significantly reducing communication overhead and test time.
Solution Approach 2:
The test control sequences are designed to be self-executing and self-terminating, requiring minimal external intervention during execution. Once triggered by an external event, the sequence autonomously performs its measurements and control operations without continuous communication with external systems. This self-service capability reduces communication latency while maintaining precise measurement control.
Data Source
AI summary
System and method for testing a wireless data packet signal transceiver device under test (DUT) in which external control circuitry manages initiation of execution by a tester of test program instructions defining multiple self-terminating test control sequences in one or more desired sequences. The test control sequences may be pre-stored in a tester for subsequent execution under control of control signals sourced externally by the external control circuitry via separate control signals.