Composite Include (LTE-Advanced)

Composite Include contains a list of check boxes that determine which channels and signals are shown on traces and included in the EVM and EVM Pk data results on the Error Summary trace.

When a channel is selected, the channel is shown on the applicable traces (like IQ Meas, Error Vector Time, and RMS Error Vector Spectrum, etc.) in the color defined in the Frame Summary trace and is included in 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..

Below is a list of channels. Click on the name of the channel to view more information about that channel.

Non-alloc

When selected, unused subcarriers are shown on applicable traces, such as IQ Meas and Error Vector Time.

Non-alloc signals consist of unused subcarriers in all shared and control channels. This includes unallocated user data subcarriers, the DC subcarrier In an orthogonal frequency division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) signal, the subcarrier whose frequency would be equal to the RF center frequency of the station. in downlink, and unused P-SS Primary Synchronization Signal and S-SS Secondary Synchronization Signal subcarriers. See the Non-alloc parameter topic for more information.

The Non-alloc row on the Frame Summary trace includes only unallocated shared channel (PDSCH Physical Downlink Shared Channel or PUSCH) subcarriers (those that could be allocated for users but are not). See the Frame Summary Non-alloc topic for more information.

See Also

LTE Allocation Editor

Profile Tab

LTE-Advanced Demod Properties Dialog Box