LTE TDD
For Waveform Playback (ARB) capability.
This topic describes the settings of the Downlink > MCH node for an Advanced TDD Downlink carrier.
Number of PDCCH Symbols (Non-MBSFN Region Length)
Transmit PMCH and RS on MBSFN Region
Modulation and TBS Index Table
Query only
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:CHANnel? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:CHANnel? |
|
Preset |
13 |
|
State Saved |
No |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:STATe ON|OFF|1|0 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:STATe? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:STATe OFF :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:STATe? |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:ANT:MAP:P4 <string> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:ANT:MAP:P4? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:ANT:MAP:P4 "1" :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:ANT:MAP:P4? |
|
Range |
0 or 1 with comma separated input. Length equals Total Number of Antennas. |
|
Dependencies |
Value depends on Total Number of Antennas.
|
|
Preset |
"1" |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
3 |
|
Initial S/W Revision |
A.20.01 |
Enter the number of PDCCH symbols (Non-MBSFN region length).
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:PDCCh:NSYMbol <integer> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:PDCCh:NSYMbol? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:PDCCh:NSYMbol 2 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:PDCCh:NSYMbol? |
|
Notes |
Length of the non-MBSFN region in OFDM symbols. |
|
Dependencies |
Active when MCH State is ON and MBSFN subframe is assigned. Range = 1 to 2 when N_DL_RB > 10 and 1 or 2 CRS antenna ports. Range = 2 only when 4 CRS antenna ports. |
|
Couplings |
Coupled to PDCCH Allocations in DCI for MBSFN subframes. |
|
Preset |
2 |
|
State Saved |
Yes |
|
Min |
1 |
|
Max |
2 |
|
Initial S/W Revision |
A.20.01 |
Sets the MBSFN Area ID used for scrambling of MBSFN RS and PMCH.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:AID <integer> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:AID? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:AID 0 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:AID? |
|
Range |
0 to 255 (Integer) |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
255 |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:RFAPeriod RF1|RF2|RF4|RF8|RF16|RF32 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:RFAPeriod? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:RFAPeriod RF1 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:RFAPeriod? |
|
Choices |
1 frame | 2 frames | 4 frames | 8 frames | 16 frames | 32 frames Formula: SFN mod Radio Frame Allocation Period = Radio Frame Allocation Offset. |
|
Couplings |
Controls valid range of Radio Frame Allocation Offset. |
|
Preset |
RF1 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:RFAoffset <integer> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:RFAoffset? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:RFAoffset 0 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:RFAoffset? |
|
Range |
0 to 7 (Integer). Upper range = MIN(Radio Frame Allocation Period - 1, 7). Formula: SFN mod Period = Offset. 0 when Radio Frame Allocation Period is 1 frame 1 when Radio Frame Allocation Period is 2 frames 3 when Radio Frame Allocation Period is 4 frames 7 when Radio Frame Allocation Period is 8 frames/32 frames |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
7 |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:SFALloc F1|F4 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:SFALloc? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:SFALloc F1 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:SFALloc? |
|
Notes |
F1: 1-frame allocation bitmap (6 bits) F4: 4-frame allocation bitmap (24 bits) |
|
Dependencies |
Radio Frame Allocation Period is 4 to 32 frames case, 4 frames of Subframe Allocation parameter is available to select. Otherwise 4 frames of Subframe Allocation parameter is not available to select. |
|
Couplings |
Controls valid bit-width of Allocation Bitmap. |
|
Preset |
F1 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Sets the bitmap indicating which subframes are MBSFN.
Bit width determined by Subframe Allocation.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:AMAP <string> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:AMAP? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:AMAP "1,1,1,1,1" :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:AMAP? |
|
Notes |
Values: 0 or 1, comma separated. Length: 5 (1 frame) or 20 (4 frames). Depends on Subframe Allocation setting. |
|
Dependencies |
Length depends on Subframe Allocation:
|
|
Preset |
"1,1,1,1,1" "1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1" when Subframe Allocation is 4 frames. |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Used for Dynamic Spectrum Sharing (DSS) with NR5G carrier.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:PMCH[:STATe] ON|OFF|1|0 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:PMCH[:STATe]? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:PMCH:STATe ON :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:PMCH:STATe? |
|
Choices |
ON | OFF |
|
Dependencies |
Active when MCH State is ON. |
|
Preset |
1 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Sets the power of MBSFN reference signals (dB).
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:RS:POWer <rel_ampl> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MBSFn:RS:POWer? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:RS:POWer 0 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MBSFn:RS:POWer? |
|
Range |
-60.000 to 20.000 dB |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
-60 |
|
Max |
20 |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:SCRamble[:STATe] ON|OFF|1|0 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:SCRamble[:STATe]? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:SCRamble:STATe ON :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:SCRamble:STATe? |
|
Preset |
1 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Sets the power of PMCH data channel (dB).
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:PMCH:POWer <rel_ampl> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:PMCH:POWer? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:PMCH:POWer 0 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:PMCH:POWer? |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
-60 |
|
Max |
20 |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:UECat CAT0|CAT1|CAT2|CAT3|CAT4|CAT5|CAT6|CAT7|CAT8|CAT9|CAT10|CAT11|CAT12|CAT13|CAT14|CAT15 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:UECat? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:UECat CAT15 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:UECat? |
|
Notes |
0 to 15 (CAT1 through CAT15). Determines maximum transport block size. |
|
Preset |
CAT15 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:DATa PN9|PN15 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:DATa |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:DATa PN9 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:DATa? |
|
Notes |
Choices: 0 to 15 (CAT1 through CAT15). Determines maximum transport block size. |
|
Preset |
PN9 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MCSTable TAB1|TAB2 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MCSTable? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MCSTable TAB1 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MCSTable? |
|
Notes |
Choices: Table 1 | Table 2. Table 1: 36.213 Table 7.1.7.1-1 (QPSK/16QAM/64QAM, MCS 0-28, TBS 0-26). Table 2: 36.213 Table 7.1.7.1-1A (QPSK/16QAM/64QAM/256QAM, MCS 0-27, TBS 0-33). |
|
Dependencies |
Controls available range for MCS Index, Modulation, and TBS Index. |
|
Preset |
TAB1 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MCS OFF|MCS0|MCS1|MCS2|MCS3|MCS4|MCS5|MCS6|MCS7|MCS8|MCS9|MCS10|MCS11|MCS12|MCS13|MCS14|MCS15|MCS16|MCS17|MCS18|MCS19|MCS20|MCS21|MCS22|MCS23|MCS24|MCS25|MCS26|MCS27|MCS28 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MCS? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MCS MCS0 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MCS? |
|
Notes |
Range depends on Modulation and TBS Index Table selection. When set to a value (not Off), Modulation and TBS Index become read-only and auto-set. Choices: Off | 0 to 28 (Table 1) or Off | 0 to 27 (Table 2). |
|
Dependencies |
When MCS Index = Off, Modulation and TBS Index are user-settable. When MCS Index = 0-28, Modulation and TBS Index are automatically set. |
|
Couplings |
Drives Modulation and TBS Index (read-only). |
|
Preset |
MCS0 |
|
State Saved |
Yes |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MODulation QPSK|QAM16|QAM64|QAM256|QAM1024 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MODulation? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MODulation QPSK :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MODulation? |
|
Dependencies |
Read-only. Derived from MCS Index and TBS table. |
|
Preset |
QPSK |
|
State Saved |
No |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:TBSindex OFF|TBS0|TBS1|TBS2|TBS3|TBS4|TBS5|TBS6|TBS7|TBS8|TBS|9|TBS10|TBS11|TBS12|TBS13|TBS14|TBS15|TBS16|TBS17|TBS18|TBS19|TBS20|TBS21|TBS22|TBS23|TBS25|TBS26|TBS27|TBS28|TBS29|TBS30|TBS31|TBS32|TBS33 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:TBSindex? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:TBSindex TBS0 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:TBSindex? |
|
Notes |
Read-only. Derived from MCS Index and TBS table. Off | 0 to 26 (Modulation and TBS Index Table is Table 1 case) Off | 0 to 33 (Modulation and TBS Index Table is Table 2 case) |
|
Couplings |
if MCS Index is off or 29 to 31 (Modulation and TBS Index Table is Table 1 case) or 28 to 31 (Modulation and TBS Index Table is Table 2 case). Otherwise TBS Index is automatically selected by software as read-only. |
|
Preset |
0 |
|
State Saved |
No |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |
Sets the Transport block size, in bits.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:TBSize <integer> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:TBSize? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:TBSize 1384 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:TBSize? |
|
Dependencies |
Range: 1 to 75376 (Table 1) or 1 to 97896 (Table 2). The maximum value depends on UE Category. |
|
Couplings |
Automatically set by TBS Index. Editable only when TBS Index = Off. |
|
Preset |
1384 |
|
State Saved |
Yes |
|
Min |
1 |
|
Max |
75376 (Modulation and TBS Index Table is Table 1 case) 97896 (Modulation and TBS Index Table is Table 2 case) |
|
Initial S/W Revision |
A.20.01 |
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MCODing <real > [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:MCODing? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MCODing 0.93 :RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:MCODing? |
|
Notes |
Range: 0.001 to 1.000. Formula: Effective code rate = DL information bits (incl. CRC) / physical channel bits. Error displayed if code rate exceeds maximum. |
|
Preset |
0.93 |
|
State Saved |
Yes |
|
Min |
0.001 |
|
Max |
1.000 |
|
Initial S/W Revision |
A.20.01 |
Query only
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:DLINk:MCH:RBSize? |
|
SCPI Example |
:RADio:LTETdd:WAVeform:ARB:CCARrier:DLINk:MCH:RBSize? |
|
Notes |
Value depends on System Bandwidth (e.g., 25 for 5 MHz, 50 for 10 MHz). |
|
Dependencies |
Read-only. Set by software from System Bandwidth. |
|
Preset |
RB50 |
|
State Saved |
No |
|
Min |
N/A |
|
Max |
N/A |
|
Initial S/W Revision |
A.20.01 |