Munich, Germany: Rohde & Schwarz (R&S) and Beceem Communications jointly developed a custom test solution for Beceem’s mobile WiMAX chipsets that’s based on the R&S CMW270 WiMAX communication tester. The CMW270 combines a non-signalling mode for RF alignment in production and a signaling mode (basestation emulation) for testing under simulated network conditions.
Test time optimisation was given priority in the CMW270 platform architecture. Multi-evaluation measurements and parallel TX/RX test algorithms reduce chipset configuration and handling times. Internal switching between RF channels further improves RF calibration of multi-antenna devices (MIMO) because it’s able to eliminate external adaptation.