This topic describes the Signal Optimizer's default Favorite Settings for a 5G Candidate signal format.
Enter an alpha-numeric waveform file name. The name can include spaces and some special characters: _ $ & # + - [ ]. The maximum name length is 22 characters for non-Windows based instruments (e.g., N5182A, etc.), and 150 characters for Windows based instruments. (If you enter a name with more than the maximum name length, the software truncates the name to the length when you click outside of the cell.)
Enter an alpha-numeric comment of up to 32 characters. The comment resides in the file header and can include spaces and special characters.
Enter the number of frames included in the waveform.
Range: 1-300
Enter the oversampling ratio of the waveform. The Total Sample Points is automatically determined based on the oversampling ratio.
Range: 2-16
Enable or disable the mirror spectrum for the waveform.
Display the number of sample points in the waveform. This value is read-only and will be automatically updated with waveform setting change. Waveform length is directly related to the oversampling ratio value selected. (Increasing the oversampling ratio increases the total sample points.)
Display the waveform length in seconds. This value is read-only and will be automatically updated with waveform setting change.
Display the sample rate of the signal. This value is read-only and will be autotmaically calculated from symbol rate and over sampling rate.
Select the modulation scheme for 5G Candidates. (Click a choice below for settings descriptions.)
Choices: FBMC-OQAM | UFMC | GFDM | F-OFDM
Enter the FFT length used for OFDM transmission. The value must be even. Usually the value is a power of two.
Range: 4 - 16384
Enter the number of lower guard subcarriers. These subcarriers will be ignored - they will not appear in any results, the modulation and resource type are undefined.
Range: 0 - FFT Length / 2
Enter the number of upper guard subcarriers. These subcarriers will be ignored - they will not appear in any results, the modulation and resource type are undefined.
Range: 0 - FFT Length / 2
Set the number of Multicarrier symbols in a frame, which usually includes preamble symbols and data symbols.
Range: 1 - 2000
Set the idle interval in-between OFDM frames in seconds. When idle interval is set to zero, a continuous waveform will be generated.
Range: 0 - 200 ms
Set the number of cutoff symbols in the initial transition.
Range: 0 - (K - 0.5)
Set the number of cutoff symbols in the final transition.
Range: 0 - (K - 0.5)
Enable or disable the aided pilot for FBMC signal.
Set the signal sampling rate in Hz. All the subbands will share the same sampling rate.
Range: 1 kHz - 4 GHz (The minimum sampling rate is also determined by the total bandwidth of subbands.)
Set the overlap factor (K) for FBMC signal.
Range: 2 - 8
Select the filter bank structure for FBMC signal.
Choices: Extend IFFT | Polyphase Network
Set the FBMC filter coefficients in frequency domain.
Enter the FFT length used for OFDM transmission. The value must be even. Usually the value is a power of two.
Range: 4 - 16384
Enter the number of lower guard subcarriers. These subcarriers will be ignored - they will not appear in any results, the modulation and resource type are undefined.
Range: 0 - FFT Length / 2
Enter the number of upper guard subcarriers. These subcarriers will be ignored - they will not appear in any results, the modulation and resource type are undefined.
Range: 0 - FFT Length / 2
Set the number of Multicarrier symbols in a frame, which usually includes preamble symbols and data symbols.
Range: 1 - 2000
Set the idle interval in-between OFDM frames in seconds. When idle interval is set to zero, a continuous waveform will be generated.
Range: 0 - 200 ms
Set the number of cutoff symbols in the initial transition.
Range: 0 - (K - 0.5)
Set the number of cutoff symbols in the final transition.
Range: 0 - (K - 0.5)
Enable or disable the aided pilot for FBMC signal.
Set the signal sampling rate in Hz. All the subbands will share the same sampling rate.
Range: 1 kHz - 4 GHz (The minimum sampling rate is also determined by the total bandwidth of subbands.)
Set the subcarrier start index of subband configuration, the subband subcarrier end is coupled after it changes.
Set the subcarrier end index of subband configuration, the subband subcarrier start is coupled after it changes.
Set the number of subcarriers for each subband, the subband end is coupled after it changes.
Set the number of subbands, the subband end is coupled after it changes.
Set if DC is skipped between subbands. It is editable when DC is on the edge of subband, otherwise it is set to No and readonly.
Choices: Yes | No
Select the UFMC Filter Type.
Choices: Chebyshev window | User Defined
Set the length of the filter in symbols.
Range: 1 - 1000
Set the sidelobe attenuation of Chebyshev window in dB.
Range: 0 - 200
Display the normalized 3dB bandwidth of filter and the number of subcarriers covered.
Set the filter coefficients for user defined filter.
Set the number of subcarriers for the GFDM signal. This value will be clipped to the nearest power of 2.
Range: 4 -16384
Enter the number of lower guard subcarriers. These subcarriers will be ignored - they will not appear in any results, the modulation and resource type are undefined.
Range: 0 - FFT Length / 2
Enter the number of upper guard subcarriers. These subcarriers will be ignored - they will not appear in any results, the modulation and resource type are undefined.
Range: 0 - FFT Length / 2
Set the number of subsymbols for the GFDM signal.
Range: 1 - 2000
Set the cyclic prefix (CP) length (Before oversampling).
Range: 0 - K*M/2
Set the cyclic suffix (CP) length (Before oversampling).
Range: 0 - K*M/2
Set the number of cutoff symbols in the initial transition.
Range: 0 - (K - 0.5)
Display the total frame length including CP and CS (Before oversampling).
Set the idle interval in-between OFDM frames in seconds. When idle interval is set to zero, a continuous waveform will be generated.
Range: 0 - 200 ms
Set the signal sampling rate in Hz. All the subbands will share the same sampling rate.
Range: 1 kHz - 4 GHz (The minimum sampling rate is also determined by the total bandwidth of subbands.)
Select the GFDM Filter Type.
Choices: Raised Cosine | Root Raised Cosine | Xia 1st | Xia 4th | Rectangle
Set the Roll-off parameter of GFDM filter.
Range: 0.01 - 1 (Set to 0 if the filter type is rectangle.)
Select the GFDM Window Type.
Choices: Rectangle | Ramp | Raised Cosine | 4th Raised Cosine
Set the ramp length of GFDM window.
Range: 0 - FrameLength / 2
Set the minimum subcarrier spacing across all the subbands. This property will be automatically updated with the equation: Min Subcarrier Spacing = Sample Frequency / Max FFT Size.
Set the idle interval in-between OFDM frames in seconds. When idle interval is set to zero, a continuous waveform will be generated.
Range: 0 - 200 ms
Set the signal sampling rate in Hz. All the subbands will share the same sampling rate.
Range: 1 kHz - 4 GHz (The minimum sampling rate is also determined by the total bandwidth of subbands.)