E1969A Datasheet, PDF (9/19 Pages) Keysight Technologies – TD-SCDMA_GSM Fast Switch Test Application

09 | Keysight | TD-SCDMA_GSM Fast Switch Test Application - Technical Overview
TD-HSDPA mode (active cell)
Call connection types
RB test mode:
–– BS origination and release
–– HSDPA RB test mode is operated on the downlink, simultaneously supporting as symmetrical
RMC of 12.2 kbps
TD-HSDPA RF generator
Downlink channel power level: All downlink timeslot power levels are fixed to the cell
power. The physical channels in one timeslot have separate relative powers and the
relative power of the channels in one time slot must sum to 100% of the timeslot power
HS-SCCH relative level: –6.03 dB if only one HS-SCCH channel is configured; –6.97 dB
if four HS-SCCH channels are configured
HS-DSCH relative level: 0 dB
Downlink CDMA modulation
Modulation type: QPSK and 16QAM per 3GPP standard
QPSK residual EVM: < 10%, typically < 3%
QPSK carrier feed through: < –25 dBc, typically < –35 dBc
TD-HSDPA RF analyzer
Real-time demodulation of: Uplink DPCH and HS-SICH
CW mode
Under CW mode, an unmodulated continuous wave (CW), an FM signal, or a reduced
single channel GPS source signal can be generated on the downlink; the level and
frequency of the CW signal can be changed; for FM signal, besides the level, and
frequency, some other FM-related parameters such as FM deviation and modulation
frequency are also settable; for GPS signal the power level, satellite ID and data pat-
terns can be changed. No uplink demodulation or channel decoding is available with
CW mode
CW signal generation
Frequency ranges: 450 to 496 MHz, 700 to 800 MHz, 810 to 960 MHz, 1700 to 1920
MHz, 2010 to 2025 MHz
Accuracy and stability: Same as timebase reference
Supplemental characteristics
Typical CW frequency switching speed: < 10 ms to be within < 0.1 ppm of final frequency
Operating frequency range: 292 to 2700 MHz
Setting resolution: 1 Hz
RF amplitude
Output level range at RF IN/OUT: –10 to –13 dBm
Output level range at RF OUT ONLY: –10 to –5 dBm
Absolute output level accuracy: < ±1.0 dB
VSWR at RF IN/OUT: < 1.14:1 for 450 to 496 MHz and 810 to 960 MHz,
< 1.2:1 for 1.7 to 1.99 GHz
Reverse power at RF IN/OUT: < 2.5 W continuous, < 5 W peak bursted power
Reverse power at RF OUT ONLY: < 500 mW continuous