Available Trace Data (LTE-Advanced)
The LTE Long Term Evolution traces contain information about demodulation results.
- Channel trace data provide pre-demod information about each of the measurement channels. This includes time traces, spectrum traces, calibration corrections, and statistical traces (PDF 1) Probability Density Function Trace Data, or 2) Portable Document Format (PDF) created by Adobe Systems is an open standard for document exchange., CDF Cumulative Distribution Function: The cumulative probability that a parameter will be less than a given value X., CCDF Complementary Cumulative Distribution Function).
- Cross-Carrier trace data provide information about the relationship between the component carriers in the LTE-Advanced signal, including time alignment error and power information relative to a user-selectable reference carrier.
- Demod trace data provide demodulation results that are not specific to a particular layer. This includes equalizer frequency response, equalizer impulse response, and EVM Error vector magnitude (EVM): A quality metric in digital communication systems. See the EVM metric in the Error Summary Table topic in each demodulator for more information on how EVM is calculated for that modulation format. minimization and tracking information. Since there are no layers in uplink, traces with IQ and EVM information are included in the Demod trace category.
- Layer trace data contain downlink demodulation results that are specific to a particular layer trace. This includes error vector traces, IQ traces, resource block traces, and the detected allocations trace.
- MIMO trace data contain information about all C-RS Cell-specific RS/Rx antenna port paths. This includes equalizer frequency response, equalizer impulse, MIMO Multiple Input, Multiple Output: A physical layer (PHY) configuration in which both transmitter and receiver use multiple antennas. condition number, and the MIMO info table.
For information about summary table traces, see Available Summary Tables.
Available Channel Trace Data
Menu Path: where X is one of the available measurement channels.
For more information, click the name of a trace.
Available Cross-Carrier Trace Data
Menu Path:
For more information, click the name of a trace.
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Available Demod Trace Data
Menu Path: where x specifies the component carrier
For more information, click the name of a trace.
Downlink
Uplink
Available Downlink Layer Trace Data
Menu Path: where x specifies the component carrier
For more information, click the name of a trace.
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Antenna Combined Beamforming Gain |
Available Downlink MIMO Trace Data
Menu Path: where x specifies the component carrier
For more information, click the name of a trace.
See Also
