Waveform Quality; Loopback Bit Error Ratio - Agilent Technologies 8960 Series Reference Manual
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- Reference manual (786 pages) ,
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Test Adherence to Standards
Related Topics
"Adjacent Channel Leakage Ratio Measurement Description" on page 30
"Programming an Adjacent Channel Leakage Ratio Measurement" on page 135
Waveform Quality
Standards References: 3GPP TS 34.121 section 5.13 and section 5.3
Waveform quality provides the following measurement results: error vector magnitude (EVM), frequency
error, origin offset, phase error, magnitude error, timing error, peak code domain error, and β
and β
are available through GPIB query only.) The frequency error result meets the requirements for 3GPP
d1-6
TS 34.121, section 5.3, Frequency Error.
Waveform quality conforms to the method of test for EVM and Peak Code Domain Error defined under
Transmit Modulation (section 5.13) with the following exceptions:
• The measurement only works on the supported Reference Measurement Channels (RMC). which for this
release are the 12.2 kbps RMC and the 64 kbps RMC.
• Peak Code Domain Error (section 5.13.2) specifies the use of the 768 kbps RMC which supports multiple
DPDCHs. The peak code domain error (PCDE) is to be determined by projecting the error vector power onto
the code domain at the maximum spreading factor, which is 4 for the 768 kbps RMC. The test set doesn't
yet support the 768 kbps RMC, so the PCDE is computed by projecting the error vector power onto the code
domain at the spreading factor equal to the DPDCH. Therefore, the PCDE for the 12.2 kbps RMC is
determined uses a spreading factor of 64 while the PCDE for the 64 kbps RMC is calculated using a
spreading factor of 16.
Related Topics
"Waveform Quality Measurement Description" on page 44
"Programming a Waveform Quality Measurement" on page 150
Loopback Bit Error Ratio
Standards References: 3GPP TS 34.121 section 6.2 - section 6.8
Loopback BER compares the data it sends on the downlink signal to the data it receives on the uplink signal,
with the UE operating in loopback mode 1 (as per 3GPP TS 34.109, section 5.3.2.6.2, Loopback of RLC SDUs).
Loopback BER conforms to the method of test for the following measurements: Reference Sensitivity Level
(3GPP TS 34.121, section 6.2) and Maximum Input Level (3GPP TS 34.121, section 6.3).
54
S:\Hp8960\E1963A WCDMA\4.0 release\Reference Guide\Chapters\wcdma_meas_adherence_desc.fm
and β
. (β
c
d1-6
c
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