Atec Rohde-Schwarz-SMIQ Series - Manual (Page 15)

Vector Signal Generator R&S SMIQ – Specifications 15
Digital standard WCDMA with option R&S SMIQB43
To NTT DoCoMo 1.0 and ARIB standard 0.0
Internal modulation data
Forward link, 19200 bit/s
Reverse link, 28800 bit/s
Reverse link coded
PRBS, 0 sequence, 1 sequence, 01 alternating,
different for each code channel
PRBS, 0 sequence, 1 sequence, 01 alternating,
programmable data memory
PRBS, 2
9 −1, 2 15 −1, 2 16 −1, 2 20 −1, 2 21 −1, 2 23 −1,
programmable data memory
Synchronization signals
(chip rate 1.2288 Mcps) chip clock, input and output, 2 outputs for 80 ms, 80/3 ms,
20 ms, 2 s clock, trigger input
Modulation accuracy ρ >0.9996
Adjacent-channel power ratio at 30 kHz bandwidth
Reverse link
Offset 885 kHz
Offset 1.25 MHz
Offset 1.98 MHz
With option R&S SMIQB47, IQ filter 850 kHz
Offset 885 kHz
Offset 1.25 MHz
Offset 1.98 MHz
9 channels forward link
Offset 885 kHz
Offset 1.25 MHz
Offset 1.98 MHz
With option R&S SMIQB47, IQ filter 850 kHz
Offset 885 kHz
Offset 1.25 MHz
Offset 1.98 MHz
−77 dBc typ.
−83 dBc typ.
−84 dBc typ.
<−78 dBc, −82 dBc typ.
<−83 dBc, −87 dBc typ.
<−85 dBc, −89 dBc typ.
−77 dBc typ.
−79 dBc typ.
−80 dBc typ.
<−74 dBc, −78 dBc typ.
<−80 dBc, −84 dBc typ.
<−83 dBc, −86 dBc typ.
Modulation and ACP specifications apply at the respective standard frequency ranges and at levels
≤8 dBm PEP with R&S SMIQ02B/03B
≤5 dBm PEP with R&S SMIQ04B/06B
Frequency
Standard
Range 1800 MHz to 2200 MHz
same as R&S SMIQ
Modulation QPSK, OQPSK
General settings
Chip rate
Standard
Range
Link direction
Sequence length 4.096 Mcps
0.1 Mcps to 7 Mcps
uplink and downlink
45 frames without option R&S SMIQB12
150 frames with 1 option R&S SMIQB12
240 frames with 2 options R&S SMIQB12
Baseband filter
Standard WCDMA 0.22
Other filters √ cos (α = 0.1 to 0.7), cos (α = 0.1 to 0.7)