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5G NR

Channel Setup DCI

Downlink Control Information (DCI) is used to transport downlink control information for one or more cells with one radio network transportation identifier (RNTI) to the PDCCH physical channel.

This topic describes the following DCI properties:

Add DCI

Delete DCI

Copy DCI

DCI Count

General Settings

Name

Enabled

Power Boosting

Antenna Port Weight

Scrambling

PDCCH-DMRS-Scrambling-ID

RNTI

C-RNTI

DMRS Power Boosting

DMRS Mapping Reference

Resource Allocation

Allocated Slots

First Symbol

Search Space

Aggregation Level

Number of PDCCH Candidates

Candidate Index

CCE Offset

CORESET Selection

DCI Payload Data

Channel Coding

C-RNTI for Scrambling

Auto DCI

DCI Format

RNTI Type

DL-SCH Couplings

DCI Bits

Payload Data

Custom Pattern

User File

Payload Size

Add DCI

Adds a DCI to the setup table. Supports up to 32 channels.

See also, Adding, Copying, and Deleting BWP or Channels.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > + sign to Add

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI:ADD

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI:ADD

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Delete DCI

Removes the highlighted DCI.

See also, Adding, Copying, and Deleting BWP or Channels.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Ellipsis icon > Delete

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI:DELete <integer>

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI:DEL 1

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Copy DCI

Copies the currently selected DCI channel to the last column of the setup table. Supports up to 32 channels.

See also, Adding, Copying, and Deleting BWP or Channels.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Ellipsis icon > Copy

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI:COPY <integer>

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI:COPY 1

Initial S/W Revision

A.02.00

Modified S/W Revision

A.09.00

DCI Count

Displays or returns the number of DCIs.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > Displays the available DCIs

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI:COUNt?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI:COUN?

Preset

1

State Saved

No

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

General Settings

Name

Sets the name of the DCI channel.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI >General Settings > Name

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:NAMe <string>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:NAMe?

SCPI Example

 
Saved State Yes

Initial S/W Revision

A.09.00

Enabled

Enables or disables the state of DCI.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > DCI Enabled

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>[:STATe] ON|OFF|1|0

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>[:STATe]?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI:STAT ON

RAD:NR5G:WAV:CCAR0:DLIN:DCI:STAT?

Preset

Off

State Saved

Yes

Range

Off | On

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Power Boosting

Set the additional power boosting for the channel.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > Power Boosting

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:POWer <rel_ampl>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:POWer? [MAXimum|MINimum]

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:POW 0

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:POW?

Preset

0 dB

Min

-40 dB

Max

40 dB

Resolution

0.01 dB

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Antenna Port Weight

A number array separated by ",".

The length is equal to "Total Number of Antennas" in the Waveform Setup node.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > Antenna Port Weight

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:APORt:WEIGht

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:APORt:WEIGht?

SCPI Example

 

Preset

1

State Saved

Yes

Range

-2 to 2

Initial S/W Revision

A.11.00

Scrambling

Enables or disables scrambling for the selected channel.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > Scrambling

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:SCRambling[:STATe] ON|OFF|1|0

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:SCRambling[:STATe]?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:SCR OFF

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:SCR?

Preset

On

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

PDCCH-DMRS-Scrambling-ID

Specifies the PDCCH DMR Scrambling ID for sequence generation. A minus 1 (-1) means not configured.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > PDCCH-DMRS-Scrambling-ID

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:PDSCrambling:ID <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:PDSCrambling:ID? [MAXimum|MINimum]

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:PDSC:ID 2

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:PDSC:ID?

Preset

-1

State Saved

Yes

Min

-1

Max

65535

Resolution

1

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

RNTI

Sets the RNTI for the channel.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > RNTI

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:RNTI:TYPE SIRNTI|PRNTI|RARNTI|TCRNTI|CCSMCSC

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:RNTI:TYPE?

SCPI Example

 

Preset

CCSMCS

State Saved

Yes

Initial S/W Revision

A.09.00

C-RNTI

Sets the C-RNTI for a PDCCH, used for the following conditions:

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > C-RNTI

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:RNTI <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:RNTI? [MAXimum|MINimum]

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:RNTI 2

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:RNTI?

Preset

0

State Saved

Yes

Min

0

Max

65535

Resolution

1

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

DMRS Power Boosting

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > DMRS Power Boosting

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DMRS:POWer <real>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DMRS:POWer?

SCPI Example

 

Preset

0

State Saved

Yes

Min

-40

Max

40

Initial S/W Revision

A.09.00

DMRS Mapping Reference

Displays the DMRS mapping reference of DCI, CORESET0 is selected if DCI is transmitted in CORESET0, otherwise CRB0 is selected, see section 7.4.1.3.2 of TS38.211 for more information.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > General Settings > DMRS Mapping Reference

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DMRS:MAPPing?

SCPI Example

 

Preset

CRB0

State Saved

Yes

Initial S/W Revision

A.09.00

Resource Allocation

Allocated Slots

Controls the allocated slot index for DCI transmission.

Sets the allocated slot index for the channel. Allocated Slots are entered as an array of slot indexes allocated for the PUCCH. There are three ways to configure:

These three configuration methods can be used in combination, by using ',' as the delimiter, e.g. 0,1,4:7,8:2:19 means index 0,1,4,5,6,7,8,10,12,14,16,18.

If the slot allocation is different for different frame, use '{ }' and '|' to specify the frame index, for example, {0|0,1,2},{1|3,4,5} means slot 0,1,2 for frame 0, and slot 3,4,5 for frame 1. Ensure the Number of Radio Frames under Waveform Setup node is large enough.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Resource Allocation > Allocated Slots

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:SLOTs <string>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>: DCI<channel>:SLOTs?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:SLOT "0:10"

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:SLOT?

Couplings

The range of slot index is from 0 to the number of slots in the frame of the current numerology - 1.

The to number of slots in the frame is coupled with the numerology used by this channel, which is defined in the selected BWP and refer to the Frame Structure table for the details about the relationship between number of slots in the frame and numerology.

Preset

"0"

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

First Symbol

Displays the first symbol index for the DCI transmission, the symbol number of DCI is defined in selected CORESET.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Resource Allocation >First Symbol

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:SYMBol:FIRSt <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:SYMBol:FIRSt?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:SYMB:FIRS 2

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:SYMB:FIRS?

Preset

0

State Saved

Yes

Min

0

Max

13

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Search Space

Selects the search space type of current PDCCH: UE Specific or Common.

For the initial BWP, the search space is always Common and is set to read-only.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Resource Allocation > Search Space

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:SSPace UESPecific|COMMon

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:SSPace?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:SSP UESP

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:SSP?

Preset

UE-Specific

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Aggregation Level

Sets aggregation level for current PDCCH.

The choices may be limited by the total number of CCEs of the selected CORESET.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Resource Allocation > Aggregation Level

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:AGGRegation:LEVel <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:AGGRegation:LEVel? [MAXimum|MINimum]

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:AGGR:LEV 2

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:AGGR:LEV?

Choices

1 | 2 | 4 | 8 | 16

Couplings

NumberOfRB = (Count of 1 in frequencyDomainBitmap)*6;

nReg = NumberOfRB * coreset SymbolNumber;

nCCE = nReg / 6;

For Initial BWP

       nCCE >= 16

              Valid values are {4, 8, 16}

        8 <= nCCE < 16

              Valid values are {4, 8}

         4 <= nCCE < 8

              Valid value is 4

For other BWPs

        nCCE >= 16

              Valid values are {1, 2,4,8,16}

        8 <= nCCE < 16

              Valid values are {1, 2, 4, 8}

         4 <= nCCE < 8

              Valid values are {1, 2, 4}

         2 <= nCCE < 4

              Valid values are {1, 2}

          Other nCCE

               Valid value is 1.

Preset

4

State Saved

Yes

Min

1

Max

16

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Number of PDCCH Candidates

Sets the number of PDCCH candidates to calculate the CCE Offset.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Resource Allocation > Number of PDCCH Candidates

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:PCANdidates:COUNt <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:PCANdidates:COUNt? [MAXimum|MINimum]

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:PCAN:COUN 6

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:PCAN:COUN?

Choices

1 | 2 | 3 | 4 | 5 | 6 | 8

Preset

4

State Saved

Yes

Min

1

Max

8

Resolution

1

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Candidate Index

Sets the candidate index of the search space to where the PDCCH is located.

If the Candidate Index is set to -1, then you can input the CCE Offset manually, but only one CCE Offset value is accepted.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Resource Allocation > Candidate Index

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:PCANdidates:INDex <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:PCANdidates:INDex? [MAXimum|MINimum]

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:PCAN:IND 2

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:PCAN:IND?

Preset

0

State Saved

Yes

Min

-1

Max

3

Resolution

1

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

CCE Offset

Automatically sets the CCE offset indicating to where DCI starts.

The range is based on the selected CORESET settings. For UE-specific search space and if RNTI is not 0, the CCE Offset is different for each slot with each value corresponding to one slot. If Candidate Index is set to -1, you can input CCE Offset manually, but only one value is accepted.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > Resource Allocation > Candidate Offset

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:CCE:OFFSet?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:CCE:OFFS?

Couplings

Calculated by Slot Index, Search Space, Aggregation Level, Number of PDDCh Candidates and Candidate Index.

NumberOfRB = (Count of 1 in frequencyDomainBitmap)*6;

nReg = NumberOfRB * coreset SymbolNumber;

nCCE = nReg / 6;

 

mu is the BWP mu value. Mu is calculated from BWP Numerology.

     Numerology is 15k, mu is 0

     Numerology is 30k, mu is 1

     Numerology is 60k (Normal CP or Extended CP), mu is 2

     Numerology is 120k, mu is 3

     Numerology is 240k, mu is 4

 

slotIdx is the array of the parsed Allocated Slots. For example, Allocated Slots "0:3" will be parsed to {0,1,2,3}

m = Candidate Index.

L = Aggregation Level.

M = Number of Candidates

nCI = 0

p = CORESET Index

 

If Search Space is UE Specific

      A = {39827, 39829, 39839};

      D = 65537;

      Y is an array the length of which is number of frame per slot.

 

     Y[0] = (A[p] * RNTI) % D;

    for (i = 1; i < Y.size(); i++)

      {

           Y[i] = (A[p] * Y[i - 1]) % D;

       }

       cceIndex is an array the length of which is the length of slotIdx.

       for (i = 0; i < cceIndex.size(); i++)

       {

            cceIndex[i] = (int)(L * ((Y[slotIdx[i]] + (m * nCCE) / (L * M) + nCI) % (nCCE / L)));

        }

        CceOffsetStr = convert cceIndex from array to string.;

     

            if (RNTI == 0)

                CceOffset = the string value of cceIndex[0];

If Search Space is Common

      CceOffset  = the string value of   (L * (((m * nCCE) / (L * M) + nCI) % (nCCE / L)))

Preset

"0"

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

CORESET Selection

Choices: All the CORESETS in all the BWPs

Default: BWP1_CORESET1

Select the CORESET to be used for DCI transmission.

DCI Payload Data

Channel Coding

Enables or disables transport layer channel coding.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > Channel Coding

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:CCODing[:STATe] ON|OFF|1|0

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:CCODing:[:STATe]?

SCPI Example

Preset

On

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

C-RNTI for Scrambling

Controls the C-RNTI for a PDCCH in a UE-specific search space. When the pdcch-DMRS-ScramblingID is configured (Not -1) it is used for scrambling. When it is out-of-scope(invisible) then 0 will be used for scrambling.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > C-RNTI for Scrambling

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:CRNTi <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:CRNTi? [MAXimum|MINimum]

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:CRNT 2

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:CRNT?

Preset

0

State Saved

Yes

Min

0

Max

65535

Resolution

1

Initial S/W Revision

A.04.00

Modified S/W Revision

A.09.00

Auto DCI

Enables or disables Auto DC. When enabled, you can edit the parameters for DCI contents.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > Auto DCI

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:AUTO ON|OFF|1|0

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:AUTO?

SCPI Example

 

Preset

Off

State Saved

Yes

Initial S/W Revision

A.09.00

DCI Format

Selects the DCI format.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > DCI Format

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:FORMat F00|F01|F02|F10|F11|F12

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:FORMat?

SCPI Example

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier{0:47}:DLINk:DCI{0:31}:FORMat F00

Couplings

When DCI Format 0_2 is selected, the "RNTI Type" can only be "C-RNTI/CS-RNTI/MCS-C-RNTI" and "DCI Coupling" is read-only and "None."

When DCI Format 1_2 is selected, the "RNTI Type" can only be "C-RNTI/CS-RNTI/MCS-C-RNTI" and "DCI Coupling" choices are "None" or the DL-SCH in the list, same as Format 1_0 and 1_1.

Preset

Format 0_0 (F00)

State Saved

Yes

Initial S/W Revision

A.09.00

RNTI Type

Selects the RNTI Type.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > RNTI Type

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:RNTI:TYPE SIRNTI|PRNTI|RARNTI|TCRNTI|CCSMCSC

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:RNTI:TYPE?

SCPI Example

 

Preset

C-RNTI/CS-RNTI/MCS-C-RNTi (CCSMCSC)

State Saved

Yes

Initial S/W Revision

A.09.00

DL-SCH Couplings

Set which DL-SCH is coupled with current DCI.

If DCI is coupled with a DL-SCH, after any changes on the DL-SCH side, scheduling information will be automatically filled into the DCI field, RNTI, allocated slots and BWP selection are also coupled with DL-SCH.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > DL-SCH Couplings

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DLSCh:INDex <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DLSCh:INDex?

SCPI Example

 

Preset

-1

Min-1
Max31

State Saved

Yes

Initial S/W Revision

A.09.00

DCI Bits

Displays the number of DCI bits. Click to open the DCI Fields editor to set each field of DCI, based on the selected DCI format and RNTI type.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > DCI Bits

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:BITS <string>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:BITS?

SCPI Example

 

Preset

10000001000100001000000000010000000000000000

State Saved

Yes

Initial S/W Revision

A.09.00

Payload Data

Opens the Payload Data Closeddialog where you can select a payload data type. You can also create a custom pattern or load a user file.

Payload Data

Seeds

Inverted

Generated sequence begins with...

PN9

All 1s

No

111111111…

PN15

All 1s

Yes

000000000000000…

PN23

All 1s

Yes

00000000000000000000000…

PN31

All 1s

Yes

0000000000000000000000000000000…

See also Using Custom Payload Data for more information.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > Payload Data

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DATA:TYPE PN9|PN15|PN23|CUSTom|FILE

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI0\1|2|3|4|5|6|7:DATA:TYPE?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:DATA:TYPE PN15

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:DATA:TYPE?

Choices

PN9 | PN15 | PN23 | PN31 | Custom Pattern | User File

Preset

PN9

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Custom Pattern

Opens an editor so you can create and save customized payload data.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > Payload Data > Customized Pattern

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DATA <string>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DATA?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:DATA "0101"

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:DATA?

Preset

""

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

User File

Opens a dialog so you can select a previously saved payload data file.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > Payload Data > User file

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DATA:FILE <string>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DATA:FILE?

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:DATA:FILE "c:\temp\data.txt"

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:DATA:FILE?

Preset

""

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Payload Size

Set the DCI payload data length.

GUI Location

Apps > 5G NR > Carrier DL > Downlink > DCI > DCI Payload Data > Payload Size

SCPI Command

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DATA:LENGth <integer>

[:SOURce]:RADio:NR5G:WAVeform[:ARB]:CCARrier<carrier>:DLINk:DCI<channel>:DATA:LENGth? [MAXimum|MINimum]

SCPI Example

RAD:NR5G:WAV:CCAR0:DLIN:DCI0:DATA:LENG?

Couplings

The maximum value is CCENumber*108 -24

Preset

20

Min

1

Max

408

State Saved

Yes

Initial S/W Revision

A.01.00

Modified S/W Revision

A.09.00

Related Topics

Carrier Downlink