The MF6900A Fading Simulator connects to the MD8430A Signalling Tester via a dedicated digital interface to easily simulate an LTE base station and run fading simulation tests required by 3GPP LTE 2×2 MIMO and 4×2 MIMO tests.It supports all fading propagation tests defined by 3GPP TS36.521 and uses full digital baseband processing to assure fading processing with high reproducibility at the same settings, while greatly simplifying difficult MIMO power control and achieving high accuracy.

One MF6900A unit supports both LTE 2×2 MIMO 2-cell as well as 4×2 MIMO tests and combination with the MD8430A Signalling Tester with LTE support makes it easy to configure an LTE 2×2 MIMO system for handover tests. In addition, LTE/W-CDMA inter-system handover tests are supported by connection with the MD8480C Signalling Tester with W-CDMA option.

Interface Digital I/F (LVDS) Channel Configuration SISO 2×2 MIMO, 2×1 MISO, 1×2 SIMO (Enabled with MX690010A and when MD8430A connected) 4×2 MIMO, 4×1 MISO (Enabled with MF6900A-001, MX690010A, MX690010A-001 and when MD8430A connected) Moving, Birth-Death, Tx/TRx Diversity (Enabled with MX690020A and when MD8430A connected) Number of Path 12 paths/channel Relative Path Delay 0 to 600 s, 0.1 ns resolution, 0.1 ns setting accuracy (Based on delay 0) Relative Path Gain 50 to 0 dB, 0.1 dB resolution, 0.05 dB setting accuracy Doppler Frequency 0 or 0.1 Hz to 20 kHz, 0.01 Hz resolution Fading Type Constant Phase, Pure Doppler, Rayleigh, Rice

Fading Profile

SISO Case1, Case2, Case3, Case4, Case5, Case6, Case8, VA3, VA30, VA120, PA3, PB3 [3GPP TS25.101 V8.9.0 (2009-12), TS34.121-1 V8.9.0 (2009-12)] EPA, EVA, ETU [3GPP TS36.101 V8.8.0 (2009-12)] 2×2 MIMO / 1×2 SIMO EPA, EVA, ETU [3GPP TS36.101 V8.8.0 (2009-12)] 4×2 MIMO / 4×1 MISO EPA, EVA, ETU [3GPP TS36.101 V8.8.0 (2009-12)] 2×2 HST / 1×2 HST / 1×1 HST High Speed Train scenario [3GPP TS25.101 V8.9.0 (2009-12), TS34.121 V8.9.0 (2009-12), TS36.101 V8.8.0 (2009-12)] 1×2 CQI / 1×1 CQI Conditions for CQI tests [3GPP TS36.101 V8.8.0 (2009-12)] Moving Moving propagation conditions [3GPP TS25.101 V8.8.0 (2009-12)] Birth-Death Birth-Death propagation conditions [3GPP TS25.101 V8.8.0 (2009-12)] Tx/TRx Diversity Case1, Case2, Case3, Case4, Case5, Case6, Case8, VA3, VA30, VA120, PA3, PB3 [3GPP TS25.101 V8.9.0 (2009-12), TS34.121-1 V8.9.0 (2009-12)]

High reproducibility and maintainability due to full digital baseband processing
One unit supports LTE 4×2 MIMO or 2×2 MIMO 2-cell testing
Supports LTE 2×2 MIMO to W-CDMA inter-system handover tests
Easy fading settings with MD8430A/MD8480C test scenarios
Extendable hardware platform with up to four input and four output ports

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