Real Time

1. GSM/EDGE (Basic Framed Signal)

Basic Carrier Setup (Framed Signal): 1 2 3  

State

Choice: On | Off

Default: On

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

Configuration

GSM/EDGE

Select a timeslot configuration from the Closeddrop-down menu.

GSM All Timeslots Normal

sets timeslots 0 to 7 as normal GSM bursts.

EDGE All Timeslots Normal

sets timeslots 0 to 7 as normal EDGE bursts.

GSM 1 Timeslot Normal

sets timeslot 0 as a normal GSM burst (turned on) and timeslots 1 to 7 as custom GSM bursts (turned off).

EDGE 1 Timeslot Normal

sets timeslot 0 as a normal EDGE burst (turned on) and timeslots 1 to 7 as custom EDGE bursts (turned off).

GSM/EDGE Mixed All Timeslots Normal

GSM and EDGE Normal Bursts are mixed; alternating GMSK and 8PSK timeslots.

EGPRS2-A

Select a timeslot configuration from the Closeddrop-down menu.

GSM All Timeslots Normal

sets timeslots 0 to 7 as normal GSM bursts.

EDGE All Timeslots Normal

sets timeslots 0 to 7 as normal EDGE bursts.

GSM 1 Timeslot Normal

sets timeslot 0 as a normal GSM burst (turned on) and timeslots 1 to 7 as custom GSM bursts (turned off).

EDGE 1 Timeslot Normal

sets timeslot 0 as a normal EDGE burst (turned on) and timeslots 1 to 7 as custom EDGE bursts (turned off).

GSM/EDGE Mixed All Timeslots Normal

GSM and EDGE Normal Bursts are mixed; alternating GMSK and 8PSK timeslots.

16QAM All Timeslots Normal

sets timeslots 0 to 7 as normal 16QAM bursts.

32QAM All Timeslots Normal  

sets timeslots 0 to 7 as normal 32QAM bursts.

16QAM 1 Timeslot Normal

sets timeslots 0 as a normal 16QAM burst with timeslots 1 to 7 turned off.

32QAM 1 Timeslot Normal

sets timeslots 0 as a normal 32QAM burst with timeslots 1 to 7 turned off.

GSM/EDGE/16QAM/32QAM Mixed

All Timeslots Normal

sets timeslots 0 and 4 as normal GSM bursts, timeslots 1 and 5 as normal EDGE bursts, timeslots 2 and 6 as normal 16QAM bursts and timeslots 3 and 7 as normal 32QAM bursts.

EGPRS2-B

Select a timeslot configuration from the Closeddrop-down menu.

QPSK All Timeslots HB

sets timeslots 0 to 7 as higher symbol rate QPSK bursts

16QAM All Timeslots HB

sets timeslots 0 to 7 as higher symbol rate 16QAM bursts

32QAM All Timeslots HB

sets timeslots 0 to 7 as higher symbol rate 32QAM bursts

QPSK 1 Timeslot HB

sets timeslot 0 as a higher symbol rate QPSK burst with timeslots 1 to 7 turned off

16QAM 1 Timeslot HB

sets timeslot 0 as a higher symbol rate 16QAM burst with timeslots 1 to 7 turned off

32QAM 1 Timeslot HB

sets timeslot 0 as a higher symbol rate 32QAM burst with timeslots 1 to 7 turned off

QPSK/16QAM/32QAM Mixed

All Timeslots HB

sets timeslots 1, 4 and 7 as higher symbol rate QPSK bursts, timeslots 2 and 5 as higher symbol rate 16QAM bursts and timeslots 3 and 6 as higher symbol rate 32QAM bursts

Number of Frames

Range: 1 to 511

Default: 4

Enter the number of frames for the selected carrier.

The total number of frames in a multi-carrier waveform is determined by the carrier with the largest number of frames. When some of the carriers in the waveform have fewer frames, the frames are repeated until the number matches that number in the longest carrier. For example, for two carriers A and B in the same waveform, if A has 10 frames and B has 3 frames, B is repeated 3 times completely, then one more frame from B is used before both A and B start again.

The maximum waveform length depends on the oversampling ratio, the number of frames, the number of carriers, and your PC resources, (memory size). If an Out of Memory error is reported, reduce the number of frames, the number of carriers, or the maximum Frequency Offset (reducing the Frequency offset, reduces the oversampling ratio which reduces the amount of PC memory required).

Symbol Length

The software sets the symbol length based on the number of frames and the modulation type. You cannot edit the value in this cell.

Symbol Rate

View the GSM/EDGE symbol rate. This is a fixed value, shown for reference; you cannot edit the value in this cell.

Differential Encoding for GSM

Choice: On | Off

Default: On

Double-click or use the drop-down menu to set differential data encoding On or Off. This setting is available only for GSM.

Timeslot Timing Mode (GSM/EDGE)

Choice: 157 symbols x 2 timeslots + 156 symbols x 6 timeslots | 156.25 symbols x 8 timeslots

Default: 157 symbols x 2 timeslots + 156 symbols x 6 timeslots

Double-click or use the drop-down menu to set the timeslot timing mode. In the default timing mode, timeslots 0 and 4 contain 157 symbols and the remaining timeslots contain 156 symbols.

This function is provided to allow you to switch between a perfectly spaced signal (156.25 symbols * 8 timeslots) and one that is compatible with earlier versions of signal generation software.

Timeslot Timing Mode (EGPRS2-B)

Choice: 188.4 symbols x 2 timeslots + 187.2 symbols x 6 timeslots | 187.5 symbols x 8 timeslots

Default: 188.4 symbols x 2 timeslots + 187.2 symbols x 6 timeslots

Double-click or use the drop-down menu to set the timeslot timing mode. In the default timing mode, timeslots 0 and 4 contain 188.4 symbols and the remaining timeslots contain 187.2 symbols.

If the Timeslot Timing Mode is set to 188.4 symbols x 2 timeslots + 187.2 symbols x 6 timeslots, Signal Studio software automatically sets the Oversampling Ratio to Auto.

The Oversampling Ratio must be set to Auto to set the Timeslot Timing Mode to 188.4 symbols x 2 timeslots + 187.2 symbols x 6 timeslots. This selection is not available with a manually selected value.

Carrier Setup

Baseband (Framed Signal)

Burst Shape (Framed Signal)