Real Time

Channel Setup (Advanced LTE FDD Downlink)

Click Channel Setup in the tree view to open the Channel Setup node.

For a general description of downlink signal generation on a physical channel, see Downlink Physical Channels.

Allocation Bitmap

Choice: 0 or 1 separated by commas

Length: 6 or 24 (Depends on Subframe Allocation)

Default: 1,...,1 (All 1's)

Enter 6 or 24 bits length (1: on, 0: off), separated by commas, to allocate the MBSFN on the MCH. (If you enter fewer than 6 (or 24) bits, 0 is inserted to fill in the remaining bits.) Uplink subframes are not allocated .

1 frame: The 6 bits length bitmap applies as follows:

The first/leftmost bit defines the MBSFN allocation for subframe #1, the second bit for #2, third bit for #3 , fourth bit for #6, fifth bit for #7, sixth bit for #8.

4 frames: The 24 bits length bitmap applies as follows:

Starting from the first radio frame and from the first/leftmost bit in the bitmap, the allocation applies to subframes #1, #2, #3 , #6, #7, and #8 in the sequence of the four radio-frames.

See example.

MCH Setting:

• Wave Generation Length = 20 ms

• Radio Frame Allocation Period = 2

• Radio Frame Allocation Offset = 0

• Subframe Allocation = 1 Frame

• Allocation Bitmap = “101100” (selects subframes 1, 3, 6)

• Number of PDCCH Symbols (Non-MBSFN Region Length) = 2

PDCCH Allocations = "3,3,3,3,3,3,3,3,3,3" (Before the MCH setting changes)

PDCCH Allocations = "3,2,3,2,3,3,2,3,3,3" (After the MCH setting changes)

Refer to 3GPP TS 36.331.

Antenna Mapping for Port 4

Range: 0 or 1 with comma separate input

Default: 1

Enter 0 or 1 separated by commas to assign the PMCH to the physical antennas. The comma separate length is up to the Total Number of Antennas. 0 and 1 mean Off and on respectively. Comma separate sequence order means physical antenna port number.

Example: Total Number of Antennas = 4. Where, Antennas and Antenna Mapping for Port 4 = [1, 1, 1, 1], then PMCH is assigned to all antennas (port 0 to 3).

Assigned Processes

Range: 0 to (number defined in Number of HARQ Processes-1)

Default: 0 to 7

This parameter applies only to DL-SCH channels.

Enter the numbers of individual HARQ processes, separated by commas (for example, 1,2,3) or a range of HARQ processes ( for example, 1-3) to enable specific HARQ processes. The number of available HARQ processes is defined in the Number of HARQ Processes cell.

Your setting is displayed in the DL-SCH Tx sequence dialog box (see Transmission Configuration).

Where RNTI = 65535 (SI-RNTI) this parameter is not applicable and a read only parameter.

CFI 

This parameter applies to CFI channels.

View the Control Format Indicator value for each slot. These values correspond to the number of OFDM symbols used for transmission of PDCCHs in a subframe and are set in the PDCCH Allocations cell.

C-RNTI (RA Initiation) 

Range: 1 to 65523

Default: 1

Enter a value for the Cell - Radio Network Temporary Identifier (C-RNTI).

C-RNTI (UL Scheduling) 

Range: 1 to 65523

Default: 1

Enter a value for the Cell - Radio Network Temporary Identifier (C-RNTI).

Channel Number 

Displays the identifying number of the selected channel.

Coding State

Choice: Off | On

Default: On

This parameter applies to the DCI, BCH, and DL-SCH channels.

Double-click or use the drop-down menu to turn the coding state On or Off.

Data (BCH)

This parameter applies to BCH channels. Use the Data Source Selection dialog box to select PN9, PN15, Auto-Configured Bits (Master Information Block), or User Defined Bits to use for the data. This is BCH transport block size. When Auto-Configured Bits (Master Information Block) is set, Master Information Block including SFN is automatically generated for BCH transport block size. When Auto-Configured Bits (Master Information Block) is set and waveform generation length is more than 40 ms, SFN in Master Information Block is automatically incremented by one BCH per TTI (40 ms).

Data (MCH)

Choice: PN9 | PN15 | User Defined Bits

Default: PN9

This parameter applies to the MCH channel. Use the Data Source Selection dialog box to select PN9, PN15, or User Defined Bits to use for the data in transport block.

Data #1

This parameter applies to the DL-SCH channels. Use the Data Source Selection dialog box to select PN9, PN15, or User Defined Bits to use for the data in transport block 1.

For more details, refer to 3GPP TS 36.211 and 36.212.

Data #2

This parameter applies to DL-SCH channels. Use the Data Source Selection dialog box to select PN9, PN15, or User Defined Bits to use for the data in transport block 2.

For more details, refer to 3GPP TS 36.211 and 36.212.

DCI Data

This parameter applies to DCI channels and DCI #1 corresponds with DL-SCH #1, DCI #2 corresponds with DL-SCH #2, and so on. This parameter is not settable.

DCI State

Choice: Off | On

Default: On

Double-click or use the drop-down menu to turn the channel On or Off.

Kmimo

Range:

2 (Transmission Mode = 3 or 4)

1 (Otherwise)

Default: 1

When the parameter Transmission Mode is set 3 or 4, the Kmimo parameter is set to 2. Otherwise it is set to 1.

Where RNTI = 65535 (SI-RNTI) Kmimo is a read only parameter and not applicable. Otherwise parameter is settable.

See 3GPP TS 36.212 for more information about the Kmimo parameter.

MCS Index

Choice: Off | 0 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |13 |14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28

Default: 0

Enter a value to set the MCS index of MCH.The MCS index defines the modulation order, and TBS index. Refer to Table 7.1.7.2.1-1 ( 3GPP TS 36.213) which specifies the permissible combinations of transport block size, resource allocation, and modulation type that are available for transmission.

When the MCS Index is Off, the Modulation and TBS Index are active and can be user-defined.

Refer to the table for active conditions.

	MCS/TBS Index Value	Status of Coupled Parameters
	MCS Index = 0 to 28	Modulation and TBS Index are automatically set by the software
	MCS Index = Off	Modulation and TBS Index are settable by the user.
	TBS Index = 0 to 26	TB Size is automatically decided by the software.
	TBS Index = Off	TB Size is settable by the user.

For more detail, refer to 3GPP TS 36.213.

MBSFN Area ID

Range: 0 to 255 (Integer)

Default: 0

Enter a value for Multimedia Broadcast Multicast Service Single Frequency Network Reference Signal (MBSFN) Area ID which identifies the MBSFN Area . It is used for the scrambling of the MBSFN Reference Signals and the Physical Multicast Channel (PMCH).

Refer to 3GPP TS 36.211 and 36.331.

MBSFN RS Power

Range: -60.000 to 20.000 dB

Default: 0.000 dB

This parameter defines the power of the Multimedia Broadcast Multicast Service Single Frequency Network Reference Signal (MBSFN RS) in dB.

Modulation

Choice: QPSK | 16QAM | 64QAM

When the MCS Index is off, double-click or use the drop-down menu to select modulation type for the subframe.

Refer to 3GPP TS 36.213.

Name

Displays the name (type) of the selected channel.

DCI = Downlink Control Information

BCH = Broadcast Channel

DL-SCH = Downlink Shared Channel

CFI = Control Format Indicator

HI = HARQ Indicator Channel

MCH = Multicast Channel

Number of HARQ Processes 

Range: 1 to 8

Default: 8

This parameter applies only to DL-SCH channels.

The value that you enter sets the number of available hybrid automatic repeat request (HARQ) processes and defines the interval (number of subframes) between retransmissions. Use the Assigned Processes parameter to enable HARQ processes.

Where RNTI = 65535 (SI-RNTI) this parameter is not applicable and a read only parameter.

Otherwise settable.

Your setting is displayed in the DL-SCH Tx sequence dialog box (see Transmission Configuration).

Number of PDCCH Symbols (Non-MBSFN Region Length)

Range: 1 to 2 (Integer)

Default: 2

Enter the Number of PDCCH Symbols (Non-MBSFN Region Length) for the MBSFN subframes when the MCH (Multicast channel) state is On and the MBSFN subframe is assigned. And, where the antenna configuration is set to 1 or 2 with N_DL_RB > 10, the parameter range is 1 to 2. Otherwise that is 2. Where the MCH State is on and some MBSFN subframes are assigned, then the Number of PDCCH Symbols (Non-MBSFN Region Length) is coupled to the PDCCH Allocations in DCI for the MBSFN subframe(s).

In case N_DL_RB <= 10, the Number of PDCCH Symbols is only allowed 2.

In case N_DL_RB > 10 and 1 or 2 cell-specific antenna ports, this Number of PDCCH Symbols is allowed 1 or 2.

In case N_DL_RB > 10 and 4 cell-specific antenna ports, the Number of PDCCH Symbols is only allowed 2.

See example.

MCH Setting:

• Wave Generation Length = 20 ms

• Radio Frame Allocation Period = 2

• Radio Frame Allocation Offset = 0

• Subframe Allocation = 1 Frame

• Allocation Bitmap = “101100” (selects subframes 1, 3, 6)

• Number of PDCCH Symbols (Non-MBSFN Region Length) = 2

PDCCH Allocations = "3,3,3,3,3,3,3,3,3,3" (Before the MCH setting changes)

PDCCH Allocations = "3,2,3,2,3,3,2,3,3,3" (After the MCH setting changes)

Refer to 3GPP TS 36.211 and 36.331.

OCNG for PDCCH

Choice: Off | On

Default: On

Double-click or use the drop-down menu to turn the OCNG (OFDMA channel-noise generation) for PDCCH on or off. OCNG is allocated on empty resource element groups in the control channel region (PDFICH/PDCCH/PHICH/Cell-Specific RS). OCNG is pseudo-random data and does not include transport channel coding. For more information, refer to 3GPP TS 36.521-1.

On: Unallocated control region is filled with OCNG. When carrier aggregation is used with PHICH, the PDCCH is padded with resource element groups as OCNG.

Off: Unallocated control region is not filled with OCNG.

For more detains in 3GPP TS 36.521-1.

P_A

Choice: Off | -6 dB | -4.77 dB | -3 dB | -1.77 dB | 0 dB | 1 dB | 2 dB | 3 dB

Default: 0 dB

Double-click or use the drop-down menu to select PDSCH relative power.

Where the P_A parameter is on (-6 dB to 3 dB), the P_A parameter takes priority over the Power parameter.

For more details, refer to 3GPP TS 36.213 and 36.331.

Payload Size (bits) 

Range: 1 to 1918

Default: 24

This parameter applies to BCH channels. Enter a value for the payload size in bits which is the BCH transport block input data size.

If the parameter Data is set to Auto-Configured Bits (Master Information Block), then Payload Size (bits) is read only and is set to 24. Otherwise you can enter a value for the BCH transport block size.

See 3GPP technical standards for more information.

PDCCH Allocations 

Range: 1 to 3 for number of downlink resource blocks > 10 (see System Bandwidth)

2 to 4 for number of downlink resource blocks <= 10 (see System Bandwidth) 

For DCI channels, enter the number of OFDMA symbols used for PDCCH (non-MBSFN subframes) in each subframe, separated by commas. (Highlight entire field to quickly set all allocations to the same value.) Ten inputs for each subframe are available, as described in 3GPP TS 36.211.

If the MCH (Multicast channel) state is set to On and the MBSFN subframe is assigned, the corresponding PDCCH subframes are updated with the number of symbols for MBSFN subframes set by the parameter, Number of PDCCH Symbols, in MCH.

See example.

MCH Setting:

• Wave Generation Length = 20 ms

• Radio Frame Allocation Period = 2

• Radio Frame Allocation Offset = 0

• Subframe Allocation = 1 Frame

• Allocation Bitmap = “101100” (selects subframes 1, 3, 6)

• Number of PDCCH Symbols (Non-MBSFN Region Length) = 2

PDCCH Allocations = "3,3,3,3,3,3,3,3,3,3" (Before the MCH setting changes)

PDCCH Allocations = "3,2,3,2,3,3,2,3,3,3" (After the MCH setting changes)

PHICH Allocation 

Choice: 1/6 | 1/2 | 1 | 2

Default: 1

This parameter applies only to HI channels.

Double-click or use the drop-down menu to set the allocation value for the selected HI channel.

For frame structure type 1, the number of PHICH groups is constant in all subframes and given by

where is provided by higher layers. The index ranges from 0 to .

PHICH BPSK Symbol Power

Range: -60 to 20 dB

Default: 0.000 dB

Enter a power level in dB for the PHICH Symbol Power

PHICH Duration

Choice: Normal | Extended

Default: Normal

This parameter applies only to HI channels.

Double-click or use the drop-down menu to set a Normal or Extended PHICH duration for the selected HI channel as defined in 3GPP TS 36.211.

PHICH Maximum Group Number

This parameter applies only to HI channels.

View the maximum group number for the selected HI channel. You cannot edit this cell.

Multiple PHICHs mapped to the same set of resource elements constitute a PHICH group, where PHICHs within the same PHICH group are separated through different orthogonal sequences.

PMCH Power

Range: -60.000 to 20.000 dB

Default: 0.000 dB

Enter a power level in dB for the selected channel. Refer to the Output Power Calculation (Downlink) for a description of how the software applies to your power settings.

Power

Range: -60 to 20 dB

Default: 0.000 dB

Enter a power level in dB for the selected channel. Refer to the Output Power Calculation (Downlink) for a description of how the software applies to your power settings.

Where the P_A parameter is set to a value in the range of -6 dB to 3 dB,the P_A parameter is enabled. When the P_A parameter is enabled, it takes priority over the Power parameter and so the Power cell is set 0 dB and inactive.

Radio Frame Allocation Offset

Range: 0 to 7 (Integer)

Default: 0

Enter a value for the radio frame allocation offset.

The Upper range is limited to be the lesser value of either: (Radio Frame Allocation Period - 1) or 7.

Radio-frames that contain MBSFN subframes occur when equation SFN mod Radio Frame Allocation Period = Radio Frame Allocation Offset is satisfied.

Refer to 3GPP TS 36.331.

Radio Frame Allocation Period

Choice: 1 frame | 2 frames | 4 frames | 8 frames | 16 frames |32 frames

Default: 1 frame

Double-click or use the drop-down menu to set the radio frame allocation period. Radio-frames that contain MBSFN subframes occur when the equation Single Frequency Network (SFN) mod Radio Frame Allocation Period = Radio Frame Allocation Offset is satisfied. 4 frames are available only if the Radio Allocation Period is 4, 8, 16 or 32.

Refer to 3GPP TS 36.331.

RB Size

Display the PMCH resource block size which is the same as maximum system resource blocks size as follows:

6RB (1.4MHz), 15RB (3MHz), 25RB (5MHz), 50RB (10MHz), 75RB (15MHz) and 100RB (20MHz).

This is a read only parameter.

Refer to 3GPP TS 36.213.

RNTI

Range: 1 to 65523 (0xFFF3), 65535

Default: 1 (same as DL-SCH#)

Enter a value in decimal for the Radio Network Temporary Identifier (RNTI). RNTI value and range depends on the RNTI Type.

RNTI is a generic term of an identifier for a UE.

Cell RNTI (C-RNTI) and System Information RNTI (SI-RNTI) are supported.

RNTI = 1 to 65523 case, works for C-RNTI.

RNTI = 65535 case, works for SI-RNTI.

For more details, refer to 3GPP TS 36.211 and 36.321.

RNTI Type  

Choice: C-RNTI | SI-RNTI

Default:C-RNTI

Double-click or use the drop-down menu to select RNTI type.

For more details, refer to 3GPP TS 36.211 and 36.321.

RV Index Configuration 

Choice: Auto | Manual

Default: Auto

Double-click or use the drop-down menu to set the RV Index Configuration for the selected DL-SCH.

If RV Index Configuration is set to Auto, then the parameter RV Index Sequence is active. If the parameter Retrans in the DL-SCH Tx sequence window is set to On, then the next RV Index in the RV Index Sequence is used for the RV Index of the DL-SCH transmission in the same subframe.

Where RNTI = 65535 (SI-RNTI) this parameter is set to Manual.

If RV Index Configuration is set to Manual, then the parameter RV Index Sequence is inactive.You can set the RV Index Configuration for each DL-SCH transmission.

RV Index Sequence

Range of sequence length: 1 to 16

Range of each value: 0 to 3

Default: 0, 2, 3, 1

This parameter applies only to DL-SCH.

Enter the numbers of individual RV Index Sequence, separated by commas (for example, 1,2,3).

Where RNTI = 65535 (SI-RNTI) this parameter is set to Manual and RV Index Sequence becomes inactive and this parameter is not applicable.

If RV Index Configuration is set to Auto, then the parameter RV Index Sequence is active. Otherwise it is read only. If the parameter Retrans in the DL-SCH Tx sequence window is set to On, then the next RV Index in the RV Index Sequence is used for the RV Index of the DL-SCH transmission in the same subframe.

Scrambling

Choice: On | Off

Default: On

This parameter applies to DCI, BCH, CFI, HI, and MCH channels.

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

Refer to 3GPP TS 36.211.

Scrambling #0

Choice: Off | On

Default: On

Double-click or use the drop-down menu to turn scrambling for PDSCH codeword 0 on or off.

Scrambling #1

Choice: Off | On

Default: On

Double-click or use the drop-down menu to turn scrambling for PDSCH codeword 1 on or off. RNTI value and range depends on the RNTI Type.

Search Space Auto-Assignment 

Choice: Off | On

Default: On

Double-click or use the drop-down menu to turn the Search Space Auto-Assignment on or off.

SFN Start Number 

Range: 0 to 255 (0xFF)

Default: 0

This parameter applies to BCH channels.

Set Add SFN to On to make this parameter active.

Enter a decimal value for the SFN Start Number.

This is the start number of the SFN (8 bits in binary, 2 bits in hexadecimal).

If SFN Increment = On, SFN is incremented every 40 subframes (40 ms) and used for part of the payload data. For example, If you generate a 80 ms signal with SFN Increment set to On, the initial 40 ms of the SFN = SFN Start Number and the next 40 ms of the SFN = SFN Start Number +1.

If SFN Increment = Off, SFN is not incremented and the fixed value SFN Start Number is used for part of the payload data in each 40 subframes.

Refer to the 3GPP technical standards for more information.

State 

Choice: Off | On

Default: On

Double-click or use the drop-down menu to turn the channel On or Off.

For MCH:

• On: Both channel MBSFN Reference Signals and MCH (PMCH) are on.

• Off: Both channel MBSFN Reference Signals and MCH (PMCH) are off.

For more detail, refer to 3GPP TS 36.211.

Subframe Allocation

Choice: 1 frame | 4 frames

Default: 1 frame

Double-click or use the drop-down menu to set the subframe allocation for MBSFN within the radio frame allocation period defined by the two parameters: Radio Frame Allocation Period and Radio Frame Allocation Offset. 4 frames are available only if the Radio Allocation Period is 4, 8, 16, or 32.

Refer to 3GPP TS 36.331.

TBS Index

Choice: Off | 0 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |13 |14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26

Default: 5

Enter a value for the TBS index for the MCH/PMCH. The range of available values depends on the modulation type: QPSK (0 to 10), 16QAM (10 to 19), 64 QAM (19 to 26).

Refer to 3GPP TS 36.213.

TB Size

Range: 1 to 75376 (Integer)

Enter a value for the transport block size for the MCH/PMCH.

Refer to the table for active conditions.

	MCS/TBS Index Value	Status of Coupled Parameters
	MCS Index = 0 to 28	Modulation and TBS Index are automatically set by the software
	MCS Index = Off	Modulation and TBS Index are settable by the user.
	TBS Index = 0 to 26	TB Size is automatically decided by the software.
	TBS Index = Off	TB Size is settable by the user.

For more detail, refer to 3GPP TS 36.213.

TPC-PUSCH-RNTI

Range: 1 to 65523 (0xFFF3)

Default: 1

Enter a value in decimal for the Radio Network Temporary Identifier (TPC-PUSCH-RNTI).

TPC-PUCCH-RNTI

Range: 1 to 65523 (0xFFF3)

Default: 1

Enter a value in decimal for the Radio Network Temporary Identifier (TPC-PUCCH-RNTI).

Transmission Configuration 

Click the button in this cell to open the DCI #n (DL-SCHn Control) Transmission Configuration, PDCCH Transmission Configuration, DL-SCH Tx sequence, or the PHICH Transmission Configuration dialog boxes.

Transmission Configuration Length

Range: 10ms to Waveform Generation Length, Max 160 ms

Default: 40 ms

Coupling: This property is read only when ABS is active.

Set the length of transmission configuration. The definition of transmission configuration of SCH and related DCI will be repeated to the end of the Waveform Generation Length.

UI parameter couplings:

If the Waveform Generation Length parameter is set less than the Transmission Configuration Length, the value of Transmission Configuration Length is changed to be ≤Waveform Generation Length. In summary, the relation between Transmission Configuration Length and Waveform Generation Length is that the Transmission Configuration Length ≤Waveform Generation Length. Refer to the Waveform Generation Length parameter.

Example: Where the Transmission Configuration Length is set to 20 ms (2 frames), Frames #0 and #1 configurations (Sequences #1 through #20) will be repeated while generating SCH.

Transmission Mode

Choice: 1 | 2 | 3 | 4 | 5 | 6

Default: 1

Double-click or use the drop-down menu to set the Transmission Mode for the selected DL-SCH channel.

The following table shows the transmission scheme for each Transmission Mode:

Where RNTI = 65535 (SI-RNTI) this parameter is not applicable and a read only parameter. Otherwise the parameter is settable.

UE Category

Range: 1 to 5

Default: 5

UE categories for DL-SCH channels are implemented according to the 3GPP standards as shown in the following table:

UE Tx Antenna 

Choice: UE Port 0 | UE Port 1

Default: UE Port 0

Double-click or use the drop-down menu to set the UE Tx Antenna for the selected DCI channel.