Features
- 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
- Extendible hardware platform with up to four input and four output ports
Description
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 µs, 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)] |
