Rohde & Schwarz R&S FSL3 - Trace Subsystem (Wimax, K92;K93)

TRACe Subsystem (WiMAX, K92/K93) R&S FSL
1300.2519.12 6.856 E-11
TRACe Subsystem (WiMAX, K92/K93)
The TRACe subsystem controls access to the instrument's internal trace memory.
Commands of the TRACe Subsystem
– TRACe[:DATA]
– TRACe:IQ:DATA:MEMory?
– TRACe:IQ:SRATe
Further information
– Constellation vs Symbol
– Constellation vs Carrier
– Power vs Time – Full Burst and Start / End Data
– Power vs Time – Full Subframe and Rising/Falling Subframe
– Spectrum Flatness/Group Delay/Flatness Difference
– Spectrum FFT
– Statistics Bitstream data
– Statistics Burst Summary data
– Statistics CCDF – Complementary cumulative distribution function
– EVM vs Carrier
– EVM vs Symbol
– Frequency Sweep Measurements
– Spectrum Mask
– Spectrum ACPR
Constellation vs Symbol
This measurement represents I and Q data. Data will be returned as a repeating array of interleaved I
and Q data in groups of selected carriers, until all the data is exhausted.
Each I and Q point will be returned in floating point format. TRACE1 is used for this measurement
results.
• If All Carriers is selected, it will return 52 per of I and Q data per symbol.
• If Pilots Only is selected, it will return 4 per of I and Q per symbol in the following order:
Carrier –21, Carrier –7, Carrier 7, Carrier 21.
• If a single carrier is selected, it will return 1 per of I and Q data per symbol.
For the IEEE 802.16e–2005 OFDMA standard, the following rule applies: For all symbols, the results
are returned in repeating groups of the FFT size. For example, if the FFT size was 1024 and 12
symbols were found, then 12288 I/Q pairs worth of data would be returned. Carriers that do not exist or
are filtered out by the current filter settings are denoted by the keyword NAN.