Real Time

DL-SCH Tx sequence Window (Advanced LTE-A FDD Downlink)

Select a DL-SCH channel in the Channel Setup node, then click the button in the Transmission Configuration cell to open the DL-SCH Tx sequence window.  

The DL-SCH TX window displays the transmission sequence defined in the Channel Setup node for the selected DL-SCH channel.

You can make adjustments to the MCS index, RV index, VRB type, VRB offset, VRB size, and scrambling for each DL-SCH transmission from within the DL-SCH Tx sequence window.

The settings configured in the Channel Setup node and the DL-SCH Tx sequence window are displayed in the Tx Map.

Use the Import tab to navigate to and import a saved transmission sequence.

Use the Export tab to save the current transmission sequence to a file.

Click the Column Preset button to access a drop-down list that enables you to set parameters for all transmissions to the same value.

DL-SCH Tx sequence window (Shown with parameters that are displayed when the RNTI Type is set to C-RNTI.)

Sequence

Frame

Subframe

State

MCS#1 | 2

Mod#1 | 2

TBS#1 | 2

TB Size 1 | 2

N_1A_PRB for SI-RNTI or P-RNTI

RV#1 | 2

VRB Type

RB Offset

RB Size

RB Gap

PDSCH RE Map QCL Ind

 

Sequence

Displays the sequential number.

Frame

Displays the radio frame number.

Subframe

Displays the subframe number (0 to 9) in a radio frame.

State

Choice: On | Off

Double-click or use the drop-down menu to turn the subframe state on or off.

When this parameter is on, other settings on this subframe are visible. Otherwise they are invisible.

When the DL-SCH parameter RNTI = 65535 (SI-RNTI) case, default is “Off” and there is no restriction for transmittable subframe. Otherwise “On”.

MCS#1 | 2

Choice: Off | 0 | 1 | 2 | … | 31

Default: 0

Double-click or use the drop-down menu to select MCS index for the subframe.

DL-SCH parameter RNTI = 1 to 65523 (C-RNTI) case, this parameter is as follows:

DL-SCH parameter RNTI = 65535 (SI-RNTI) case, this parameter is as follows:

For more details, refer to 3GPP TS 36.213.

Mod#1 | 2

Choice:  QPSK | 16QAM | 64QAM (Modulation and TBS Index Table 1)

QPSK | 16QAM | 64QAM | 256QAM ( Modulation and TBS Index Table 2)

Double-click or use the drop-down menu to select modulation type for the subframe.

DL-SCH parameter RNTI = 1 to 65523 (C-RNTI) case, this parameter is as follows:

DL-SCH parameter RNTI = 65535 (SI-RNTI) case, this parameter is as follows:

For more details, refer to 3GPP TS 36.213.

TBS#1 | 2

Choices: Off | 0| 1 | 2 | … | 26 (Modulation and TBS Index Table 1)

Off | 0| 1 | 2 | … | 33 (Modulation and TBS Index Table 2)

Double-click or use the drop-down menu to select TBS Index for the subframe.

DL-SCH parameter RNTI = 1 to 65523 (C-RNTI) case, this parameter is as follows.

DL-SCH parameter RNTI = 65535 (SI-RNTI) case, this parameter is as follows.

For more details, refer to 3GPP TS 36.213.

TB Size 1 | 2

Range:   1 to 97896 (C-RNTI mapped to one layer) or limited by UE Category

1 to 195816 (C-RNTI mapped to two layers) or limited by UE Category

1 to 1293736 (C-RNTI, mapped to three layers) or limited by UE Category

1 to 391656 (C-RNTI, mapped to four layers) or limited by UE Category

1 to 2216 (SI-RNTI or P-RNTI)

The maximum range value is dependent on the UE Category and the number of spatial multiplexing layers mapped to the transport block.

Where TBS = Off, this parameter is available to change manually. Otherwise this is a read only parameter set (0 to 26) by the software.

Where MCS = 29 to 31, this case is an exception. TBS, TB Size, and Mod are available to change manually.

For more details, refer to 3GPP TS 36.213.

N_1A_PRB (for SI-RNTI or P-RNTI)

This parameter selects the number of physical resource blocks.

RV#1 | 2

This parameter indicates RV Index for each subframe respectively.

Where DL-SCH parameter RNTI = 1 to 65523 (C-RNTI) and RV Index Configuration = Auto case, this parameter is automatically decided by both RV Index Sequence and ReTrans parameters.

Where DL-SCH parameter RNTI = 65535 (SI-RNTI), this parameter is set to manually.

For more details, refer to 3GPP TS 36.321.

VRB Type

Choice: Localized | Distributed

Default: Localized

Double-click or use the drop-down menu to select the virtual resource block type for the subframe.

Where DL-SCH parameter RNTI = 1 to 65523 (C-RNTI) and RA Type = Type2 case, this parameter is available to select Localized or Distributed.

Where DL-SCH parameter RNTI = 65535 (SI-RNTI), this parameter is as follows:

For more details, refer to 3GPP TS 36.211 and 36.213.

RB Offset

Range: Depends on relative parameters as follows:

Enter the RB offset for the subframe.

For more details, refer to 3GPP TS 36.213.

RB Size

Range: Depends on relative parameters as follows.

Enter the RB size for the subframe.

When the System Bandwidth is decreased, the DL-SCH Tx Sequence window's RB size, and some of the other data channel's settings, are reconfigured, similar to when a Predefined Configuration is executed. But, when the System Bandwidth is increased, no change to the DL-SCH Tx Sequence window's RB size, or the other data channel's settings occurs.

For more details, refer to 3GPP TS 36.213.

RB Gap

Choice: Ngap, 1 | Ngap, 2

Double-click or use the drop-down menu to select the RB Gap for the subframe.

Only VRB Type = ‘Distributed’ case this parameter is visible.

VRB Type = Distributed and System BW >= 50 case, this parameter is selectable by manual.

VRB Type = Distributed and System BW < 50 case, this parameter is read only and Ngap, 1.

For more details, refer to 3GPP TS 36.213.

PDSCH RE Map QCL Ind

Range: 0–3

Default: 0

Coupling: Visible when the Transmission Mode selection is 10.

Enter a value for the PDSCH RE Mapping and Quasi-Co-Location Indicator.

See 3GPP TS 36.211, 36.212, 36.213 and 36.331 for more information.