Link test for OBSAI standard interconnects
03 July 2008
A test platform has been launched that claims to provide multichannel stimulus and real-time analysis capabilities with frame decoding for link layer test.
Agilent Technologies has announced a link test for OBSAI (open base station architecture initiative) interconnects, supporting reference point 3, RP3-01, reference point 1, and Ethernet interfaces used between the BaseBand subsystem and Radiohead subsystems within a base station architecture.
The emergence of standard high-speed electrical and optical, protocol-based interconnects between subsystems in base stations is driving changes in the debug and test methodologies, with interoperability and robust testing becoming increasingly important. In addition, as all subsystems may not be present during the test time, it becomes crucial to emulate missing devices to ensure proper operation of the device under test.
Agilent’s test platform provides multichannel stimulus and real-time analysis capabilities with frame decoding for extensive link layer test. These capabilities accelerate development by providing bit-level to frame-level functionality, hierarchical protocol display and automated tools for test-vector generation that allow users to efficiently emulate, troubleshoot and verify designs.
As reliability is essential for base stations, it is critical to validate the performance of each subsystem with test equipment that has a high level of reliability. To maximise the accuracy and dependability of the measurement results, Agilent has performed subsystem validation in addition to working closely with the key equipment manufacturers in the marketplace. The Agilent base station link test module provides deterministic error injection capabilities on multiple channels combined with error-triggering and error-occurrence counting reports.
Since OBSAI architectures are modular and scalable, one of the key requirements for the test environment is to offer the same degree of scalability. Thanks to the modular architecture of the Agilent platform, the test environment can be extended to fit exactly with the subsystem’s test needs.
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