3

DPCH Measurement Suite

Includes mean and RRC-filtered mean power, spectrum emission

mask, ACLR, composite EVM frequency error, PCDE, and occupied

bandwidth measurements.

Trigger setup

Delay

–20 to +20 ms

Sources

External, fall, immediate, rise

Mean and RRC-filtered mean power

measurements

Input level range

Average power

–61 to +28 dBm/3.84 MHz

Measurement accuracy¹

–54 to +28 dBm/3.84 MHz

< ±0.6 dB, typically < ±0.3 dB

–61 to < –54 dBm/3.84 MHz < ±0.7 dB, typically < ±0.4 dB

With < 48 hours warm-up before self alignment initiated

–54 to +28 dBm/3.84 MHz

< ±0.7 dB, typically < ±0.3 dB

–61 to < –54 dBm/3.84 MHz < ±0.8 dB, typically < ±0.4 dB

Measurement repeatability

Typically < ±0.05 dB

Filter

Mean power

Mean power-compliant filter

RRC-filtered mean power

3.84 MHz

Spectrum emission mask (SEM) measurement

This measurement provides a ratio of the transmitted power

in a 3.84 MHz RRC bandwidth to offset frequencies, which

are between 2.5 MHz and 12.5 MHz away from the UE carrier

frequency.

Input level range

Average power

+5 to +28 dBm/3.84 MHz

Measurement accuracy

2.5 to 12.5 MHz

< ±1.5 dB, typically < ±0.5 dB

Offset frequency measurement bandwidths

2.5 to 3.5 MHz offsets

30 kHz

3.5 to 12.5 MHz offsets

1 MHz

In-band measurement filter

3.84 MHz (RRC)

Adjacent channel leakage ratio (ACLR)

measurement

This measurement provides a ratio of the filtered mean trans-

mitted power to the filtered mean power in an adjacent channel.

Both the transmitted and the adjacent channel powers are

measured with a filter that has an RRC response with roll-off a =

0.22 and a bandwidth equal to the chip rate.

Input level range

Average power

+5 to +28 dBm/3.84 MHz

Measurement accuracy

±5 MHz offsets at –33 dB

< ±0.8 dB, typically < ±0.4 dB

±10 MHz offsets at –43 dB

< ±0.8 dB, typically < ±0.4 dB

Residual noise floor

±5 MHz offsets

Typically < –53 dBc

±10 MHz offsets

Typically < –63 dBc

Filter

3.84 MHz (RRC)

Error vector magnitude (EVM) measurement

This measurement calculates composite EVM and several other

results relating to UE modulation quality.

Input level range

Average power

–25 to +28 dBm/3.84 MHz

UE ranges

EVM

≤ 35% rms

Frequency error

< ±1 kHz

Timing error

< ±50 chips

EVM measurement accuracy (Includes residual EVM)

UE EVM 0% rms

< 2.5% rms

UE EVM 17.5% rms

< 0.7% rms

UE EVM 35% rms

< 0.5% rms

Filter

3.84 MHz (RRC)

Measurement results

EVM, magnitude error, phase

error, origin offset

1. Additional accuracy error when using RF OUT ONLY port is < ±0.1 dB.