Spectrum Emission Mask Measurement Description; What Is The Spectrum Emission Mask; How Is The Spectrum Emission Mask Measurement Made - Agilent Technologies 8960 Series Reference Manual

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Spectrum Emission Mask Measurement Description

The UE conformance specifications in 3GPP TS 34.121, Section 5.9 define a mask for out of channel emissions.

This mask is defined relative to the in-channel power. The graphic below is an example of out-of-channel

measurement results you might see on the test set. The spectrum emission mask for each of the four frequency

bands is visible in green.

In-channel power

The in-channel power is measured on the RF input signal which is filtered with a 3.84 MHz bandwidth

Root-Raised Cosine (RRC) filter with a rolloff of α=0.22.

Out-of-channel emissions

The out-of-channel emissions found in frequencies between 2.5 and 12.5 MHz away from the center channel

frequency are determined in four symmetrical bands on each side of the carrier.

The emissions are measured with either a 30 kHz or 1 MHz bandwidth Gaussian measurement filter. See

for details of the spectrum emission mask measurement in the E1963A.

S:\Hp8960\E1963A WCDMA\4.0 release\Reference Guide\Chapters\wcdma_meas_spec_em_mask_desc.fm