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Multichannel multicarrier 3gpp w-cdma personality, Chip rates, Frame duration – Atec Agilent-E4437B User Manual

Page 20: Filters, I/q mapping, Clipping, Downlink, Channel types, Multicarrier, Uplink

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Multichannel Multicarrier 3GPP
W-CDMA personality

(Option 100, ESG-DP and ESG-D series only)

Supports R99 March 2001 3GPP W-CDMA standard. Provides
partially coded data for component test applications.

Chip rates

3.84 Mchips/sec ± 10%

Frame duration

10 ms

Filters

W-CDMA

α = 0.22

Nyquist, root Nyquist

α = 0 to 1

Gaussian

B

b

T = 0 to 1

IS-95
IS-2000
Custom FIR

Up to 256 coefficients, 16-bit
resolution

Rectangle
APCO 25 c4FM
Reconstruction filters

250 kHz, 2.5 MHz
8.0 MHz, and through

I/Q mapping

Normal, invert

Clipping

Clip location

Pre-or post-FIR filter

Clipping type

|I+jQ|, |I| and |Q|

Clipping range

10% to 100%
(Clip the modulation level to a
percentage of full scale. A level
of 100% equates to no clipping.)

Downlink

Modulation

QPSK

Pre-defined channel configurations (partially coded)

1 DPCH
3 DPCH

PCCPCH + SCH
PCCPCH + SCH + 1 DPCH
PCCPCH + SCH + 3 DPCH

Test Model 1

with 16, 32, or 64 DPCH

Test Model 2
Test Model 3

with 16 or 32 DPCH

Test Model 4

User-defined channel parameters

Symbol rates

7.5, 15, 30, 60, 120, 240, 480, or 960 ksps

Number of channels

Up to 512

Spreading code

0 to 511

Channel power

0 to –40 dB, 0.01 dB resolution

tDPCH offset

0 to 149

Scrambling code

0 to 511

Scramble types

Standard, left alternate, right
alternate

Data pattern

Random, 00 to FF (HEX), PN9

TPC power

–20 to 20 dB relative to channel
power

TPC value

0–5555

TFCI field

On /Off

TFCI value

0–1023

TFCI power

–20 to 20 dB relative to channel
power

Pilot power

–20 to 20 dB relative to channel
power

Pilot bits

4 or 8

Channel Types

(downlink) PICH, OCNS, PCCPCH, SCCPCH,

PSCH, SSCH, CPICH, DPCH

(uplink) DPCCH, DPDCH

Multicarrier

Number of carriers

Up to 4 (user defined, individually
configurable)

Frequency offset (per carrier)

Up to ±7.5 MHz

Offset resolution

<1 Hz

Carrier power (per carrier)

0 dB to –40 dB

Uplink

Modulation

OCQPSK (HPSK)

Pre-defined channel configurations (partially coded)

1 DPCCH

15 ksps, spread code 0

DPCCH + 1 DPDCH

960 ksps, spread code 1

DPCCH + 2 DPDCH

960 ksps, spread code 1

DPCCH + 3 DPDCH

960 ksps, spread code 2

DPCCH + 4 DPDCH

960 ksps, spread code 2

DPCCH + 5 DPDCH

960 ksps, spread code 3

User-defined channel parameters

Symbol rates

15, 30, 60, 120, 240, 480, or 960 ksps

Number of DPDCH

channels

6

Spreading code

0 to 511, symbol rate

Scrambling code

1 to 1FFFFFFFFFF, common for all
channels

Second DPDCH

orientation

I or Q

Channel power

0 to –60 dB

Data pattern

Random, 00 to FF (HEX), PN9

FBI bits

0–2

Error vector magnitude

1

1.8 GHz

c

<2.2 GHz, default W-CDMA filters, 3.84 Mcps chip rate,

≤4 dBm, (≤7 dBm with Option UNB)
1 DPCH

(2.3%)

Adjacent channel power

1,2

1.8 GHz

c

<2.2 GHz, default W-CDMA filters, 3.84 Mcps chip rate,

≤–2 dBm, (≤0 dBm with Option H99), 5 MHz offset

Electronic

Mechanical

Low ACP

attenuator

attenuator

(Option H99

(standard)

(Option UNB)

Rev B)

1 DPCH

(–58 dBc)

(–58 dBc)

–64 (–66 dBc)

Test Model 1 (–50 dBc)

(–55 dBc)

–60 (–63 dBc)

+ 64 DPCH

Alternate channel power

1,2

1.8 GHz

≤-2 dBm (0 dBm with Option H99 and baseband filter ON), 10 MHz
offset

Low ACP
(Option H99)

1 DPCH

-70 (-72 dBc)

Test model 1 + 64 DPCH

-66 (-68 dBc)

1. Parentheses denote typical performance.
2. Valid for 23 ± 5 °C.