N9079A TD-SCDMA/HSPA Measurement Application

Signal analysis

• TD-SCDMA, TD-HSDPA/HSUPA/8PSK per 3GPP release 99 to 8
• Uplink and downlink RF transmitter measurements; analog baseband measurements with PXA BBIQ or MXA BBIQ hardware
• One-button measurements with pass/fail per the standard
• Runs inside PXA, MXA, and EXA signal analyzers and VXT PXIe vector transceivers

Measurements

• Downlink: EVM, frequency error, power vs. time, transmit power, code domain power, SEM, ACLR, and more
• Uplink: EVM, frequency stability, transmit ON/OFF power, PkCDE, SEM, ACLR, and more
• Automatic detection of QPSK, 16QAM and 8 PSK in code domain and modulation accuracy analysis
• Multiple result views: constellation diagram, code domain, numeric display, spectrum, time domain

RF transmitter testing

• Simplify measurement setup with one-button measurements for both downlink and uplink in a single option with pass/fail limits in accordance with 3GPP TS25.142 and TS34.122 specifications.
• Expedite troubleshooting and design verification using a rich selection of traces: I/Q measured polar graph; code domain power; peak/avg metrics showing numeric result table with average and peak hold statistic results; capture time summary showing a summary table with measurement results of multiple slots; slot CDE/EVM showing EVM, peak CDE, and frequency error in three windows.
• Perform power versus time (PvT) measurements using two sweeps with different attenuator and preamp setups to meet the standard stringent dynamic range requirement of 112 dB for base stations.
• Capable of demodulating the TD-SCDMA signal with arbitrary phase or rotation for different channel codes over TD-SCDMA measurements.
• Add real-time spectrum analyzer (RTSA) capability to the PXA or MXA signal analyzers to pinpoint interference caused by the multi-carrier TD-SCDMA signals or other events in the transmitter.