Filter
Top Products
Chapter 15 187
TD-SCDMA Measurement Application
Measurements
Description Specification Supplemental Information
Modulation Accuracy (Composite
EVM)
BTS Measurements
−25 dBm ≤ ML
a
≤ −15 dBm
20 to 30° C
RF input power range is accordingly
determined to meet Mixer level.
Composite EVM
Range
Test signal with TS0 active and one
DPCH in TS0
1.5% to 18%
Test signal with TS0 active and one
HS-PDSCH in TS0
1.5% to 17% (nominal)
Floor
b
1.5%
Accuracy
Test signal with TS0 active and one
DPCH in TS0
±0.7%
cd
When EVM ≤9%
±1.1% When EVM 9%≤EVM≤18%
Test signal with TS0 active and one
HS-PDSCH in TS0
±1.1% (nominal)
Peak Code Domain Error
Accuracy
Test signal with TS0 active and one
DPCH in TS0
±0.3 dB
Test signal with TS0 active and one
HS-PDSCH in TS0
±1.0 dB
I/Q Origin Offset
DUT Maximum Offset −20 dBc (nominal)
Analyzer Noise Floor −50 dBc (nominal)
Frequency Error
Range
±7 kHz (nominal)
e
Accuracy
Test signal with TS0 active and one
DPCH in TS0
±5.7 Hz + tfa
f