Chapter 16 535
W-CDMA Uplink Digital Modulation for Receiver Test
Setting Up Compressed Mode for a Multiple TGPS Transmission
Figure 16-59 Compressed Frame Parameters
3. Set slot five of the frame as the starting slot for the first transmission gap.
a. Move the cursor to highlight the TGSN field.
b. Press
5 > Enter.
This sets the first compressed frame so it has five slots (0–4) of data prior to the transmission gap that
starts with slot five.
4. Set the first transmission gap length which is expressed as a number of slots.
a. Move the cursor to highlight the TGL1 field.
b. Press
5 > Enter.
Out of the 15 slots per frame, the standard specifies that seven of them can be used as discontinuous
transmission (DTX) slots. However the total gap length can be spread over two frames. The value 5
denotes 5 DTX slots. Since the TGSN value previously entered is also five, this would mean that the
single frame method is being used.
5. Set the second transmission gap length which is expressed as a number of slots.
a. Move the cursor to highlight the TGL2 field.
b. Press
7 > Enter.
For the second transmission gap, the single frame method is also used.
6. Set the spacing between the first and second transmission gaps expressed as a number of slots.
a. Move the cursor to highlight the TGD field.
b. Press
30 > Enter.
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