Concurrent IAB Node Testing Methodology
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Solution Overview
Problem
Conformance testing for integrated access and backhaul (IAB) nodes is time-consuming due to the need to test wide frequency ranges for spurious emission and out-of-band blocking requirements, especially when testing the distributed unit (IAB-DU) and mobile termination (IAB-MT) separately.
Innovation Solution
A method for concurrently testing data transmission on both the backhaul and access links of IAB nodes using a single or multiple test configurations, allowing simultaneous measurement of throughput and output power across defined frequency ranges, thereby reducing testing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate testing of IAB-DU and IAB-MT is performed to ensure comprehensive conformance, then measurement precision is improved, but testing time increases significantly
Solution Approach 1:
The patent combines separate testing procedures for IAB-DU and IAB-MT into a single integrated test configuration. The test system simultaneously measures both the distributed unit and mobile termination functions within the same test framework, allowing comprehensive conformance verification of both components without requiring sequential separate testing, thus reducing total testing time while maintaining measurement precision
Solution Approach 2:
The test configuration is designed to perform multiple testing functions simultaneously - it can test both IAB-DU and IAB-MT functionalities, measure spurious emissions, and verify out-of-band blocking requirements all within a single universal test setup. This multi-functional approach eliminates the need for separate specialized test configurations for each component
2Measurement precision
If wide frequency ranges are tested for spurious emission and out-of-band blocking requirements, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the wide frequency range testing into manageable sub-ranges that can be tested systematically. The test configuration divides the broad frequency spectrum into smaller segments for spurious emission and out-of-band blocking measurements, allowing comprehensive coverage of wide frequency ranges while maintaining manageable test configuration complexity through structured segmentation
3Productivity
If concurrent testing of backhaul and access links is implemented, then productivity is improved, but measurement precision may be compromised
Solution Approach 1:
The patent implements periodic measurement cycles within the concurrent test configuration, where measurements on backhaul and access links are performed in coordinated periodic intervals. This allows simultaneous testing of both links while ensuring that measurement precision is maintained through systematic periodic sampling and analysis of transmission characteristics
Data Source
AI summary
The present subject matter relates to a method for operating a node of a communication system. The node is configured to support wireless backhauling in the communication system and support wireless access to user equipments of the communication system. The method comprises: using at least one test configuration for concurrently testing data transmission on a backhaul link and an access link of the node.