Atec Rohde-Schwarz-SMIQ Series User Manual

Page 16

Vector Signal Generator R&S SMIQ – Specifications

Digital standard WCDMA 3GPP (FDD) with option R&S SMIQB45

To 3GPP standard 4.1.0 (FDD)

Code channels and spreading
Number

Multicode operation
Code channel power
Short code

Range
LMS

Long code

Initial value uplink
Initial value downlink
Time offset

mode 4: 4 channels with different power
mode 8: 8 channels, 1 channel with different power

and 7 channels with equal power

mode 15: 15 channels with equal power
yes
0.0 dB to

−30 dB

selectable for each code channel
0 to 127
1 to FF hex
selectable for each code channel
0 to 1FFFFFFFFFF hex
0 to 3FFFF hex
0 to 40959 chips (1 radio frame)

Physical channel with frame structure

Link direction
Downlink channels

Uplink channels

Uplink channels (ARIB)

Data offset

Range offset
Resolution offset

downlink, uplink, uplink IQ-multiplexed to ARIB 0.0
perch 1, common control 64 ksps sample rate, dedicated
channel with 32, 64, 128, 256, 512, 1024 ksps sample
rate
common control 64 ksps sample rate, dedicated channel
with 32, 64, 128, 256, 512, 1024 ksps sample rate
dedicated control channel with 16 ksps sample rate, dedi-
cated data channel with 16, 32, 64, 128, 256, 512,
1024 ksps sample rate
time offset, separately adjustable for each code channel
0 to 1 radio frame
1 symbol

Internal modulation data
DATA field

TPC field

PRBS, 2

−1, 2

−1,2

−1, 2

−1

programmable data memory
00, 11, alternating, programmable data memory

Synchronization signals

chip clock, input and output
outputs for slot, frame clock or marker for repetition of chip
sequence
trigger input

Error vector magnitude, rms

with option R&S SMIQB47, IQ filter 2.5 MHz

<2%, 1.5% typ.

<3%, 1.8% typ.

Adjacent-channel power, 1 DTCH

Offset 5 MHz, low distortion output mode
Offset 10 MHz, low noise output mode

With option R&S SMIQB47, IQ filter 2.5 MHz

Offset 5 MHz, low distortion output mode
Offset 10 MHz, low noise output mode

−67 dBc typ.

8 )

−70 dBc typ.

8 )

<−65 dBc, –70 dBc typ.

8 )

<−71 dBc, –74 dBc typ.

8 )

3GPP (FDD) version

4.1.0 to 3GPP technical specifications TS25.211, TS25.213,
TS25.141, TS25.101 and TS25.104

Frequency
Standard
Range

1800 MHz to 2200 MHz
same as R&S SMIQ

General settings

Chip rate

Standard
Range

3.840 Mcps,
1 Mcps to 5 Mcps