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Carrier Setup (Basic Capability)

Timeslot Configuration Summary Table

This table enables you to view the key parameters for each timeslot. Double-clicking a row activates the setup tables for that timeslot.

Timeslot

Displays the number of the selected timeslot. The parameters you set apply to this timeslot.

State

Choice: On | Off

Default: On

Double-click or use the drop-down menu to set the state of the timeslot On or Off.

Power (dB)

Range: –60 to 0 dB.

Default: 0 dB

Display the timeslot power. The CDP graph displays the normalized power of each RU in each timeslot after you generate the waveform. Refer to the Power Setting for the power calculation of the carriers, channels/timeslots and RUs.

Max User Number

Range: 2 to 16

Step: 2

Default: 16

Enter a value to set a max user number for the selected timeslot.

1. Baseband

State

Choice: On | Off

Default: On

Double-click or use the drop-down menu to set the state of the carrier ON or OFF.

Relative Power

Range: -60 to 0 dB

Default: 0 dB

Set the carrier's power relative to the signal generator's amplitude setting. Refer to the Power Setting for the power calculation of the carriers, channels/timeslots and RUs.

Initial Phase

Range: –180 to 180 degrees

Default: 0.00 deg

Set the initial phase of the carrier.

Frequency Offset

Range: –16 to 16 MHz

Default: 0 Hz

Set the frequency offset of the carrier relative to the signal generator's frequency setting.

This parameter is coupled with the Oversampling Ratio.

Timing Offset

Range: 0 to 377

Default: 0

Set the timing offset of the carrier. Timing offset values increment by 16 chips.

Pre-filter Clipping Ratio

Range: 10% to 100%

Default: 100%

Enter a value to set the pre-filter clipping ratio for the carrier.

Digitally modulated signals with high power peaks can cause intermodulation distortion, resulting in spectral regrowth that can interfere with signals in adjacent frequency bands. The clipping function enables you to reduce high power peaks by clipping the I and Q data to a selected percentage of its highest peak, thereby reducing spectral regrowth.

Pre-filter Clipping Type

Range: Rectangular | Circular

Default: Circular

Double-click or use the drop-down menu to set the pre-filter clipping type for the carrier.

2. 3GPP

SYNC-DL ID

Range: 0 to 31

Default: 0

Double-click or use the drop-down menu to set the downlink synchronization code.

SYNC-UL ID

Range: 8 * SYNC-DL ID to 8 * SYNC-DL ID + 7

Default: 0

Double-click or use the drop-down menu to set the uplink synchronization code. SYNC-UL ID belongs to the code group determined by the SYNC-DL ID.

Scrambling Code

Range: 4 * SYNC-DL ID to 4 * SYNC-DL ID + 3

Default: 0

Enter a value to set the scrambling code of the carrier. Scrambling code should be equal to the basic midamble code and belong to the code group determined by the SYNC-DL ID.

Basic Midamble Code

Range: 4 * SYNC-DL ID to 4 * SYNC-DL ID + 3

Default: 0

Enter a value to set the basic midamble code of the carrier. Scrambling code should be equal to the basic midamble code and belong to the code group determined by the SYNC-DL ID.