LTE TDD
For Waveform Playback (ARB) capability.
This topic describes the settings of the Uplink > Sounding Reference Signal node for a Basic TDD carrier.
Bandwidth Configuration (C_SRS)
Frequency Domain Position (nRRC)
Subframe Offset Configuration (Toffset)
The Sounding Reference Signal (SRS) is an uplink reference signal used by the eNB for uplink channel quality estimation.
Enables or disables Sounding Reference Signal generation.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:STATe ON|OFF|1|0 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:STATe? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:STATe OFF RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:STATe? |
|
Preset |
Off |
|
State Saved |
Yes |
|
Initial S/W Revision |
A.20.01 |
Sets the SRS power relative to the uplink carrier power.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:POWer <value> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:POWer? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:POWer 0 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:POWer? |
|
Preset |
0 dB |
|
State Saved |
Yes |
|
Min |
-60 |
|
Max |
20 |
|
Initial S/W Revision |
A.20.01 |
Selects the hopping type sounding reference signal related to.
See 3GPP TS 36.211
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:HOPPing OFF|GROup|SEQuence |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:HOPPing OFF |
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Preset |
Off |
|
State Saved |
Yes |
|
Initial S/W Revision |
A.20.01 |
Sets the SRS subframe configuration index per 3GPP TS 36.211 Table 5.5.3.3-1.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:SFRame:CONFig 0|1|2|3|4|5|6|7|8|9|10|11|12|13 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:SFRame:CONFig? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:SFR:CONF 0 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:SFR:CONF? |
|
Range |
0|1|2|3|4|5|6|7|8|9|10|11|12|13 |
|
Dependencies |
Periodicity (Tsrs) and Subframe Offset Configuration (Toffset) |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
13 |
|
Initial S/W Revision |
A.20.01 |
Enables or disables SRS transmission in UpPTS of special subframes.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:MUPTs:STATe ON|OFF|1|0 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:MUPTs:STATe? |
|
SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:MUPTs:STATe OFF RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:MUPTs:STATe? |
|
Preset |
Off |
|
State Saved |
Yes |
|
Initial S/W Revision |
A.20.01 |
Sets the Number of Format 4 PRACH burst allocated in the special subframe.
You can set this value to 0, 1, 2, 3, 4, 5, 6 for each special subframe as described in 3GPP TS 36.211.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:NUMBer:F4PRach <value> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:NUMBer:F4PRach? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:NUMB:F4PR 0,0 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:NUMB:F4PR? |
|
Preset |
"0,0" |
|
State Saved |
Yes |
|
Initial S/W Revision |
A.20.01 |
Sets the SRS cyclic shift nSRS_CS per 3GPP TS 36.211 Table 5.5.3.1-1.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:CSHift <value> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:CSHift? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:CSH N0 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:CSH? |
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Notes |
N0|N1 … N7 |
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Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
7 |
|
Initial S/W Revision |
A.20.01 |
Sets the SRS bandwidth configuration index C_SRS per 3GPP TS 36.211 Table 5.5.3.2-1.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:BWConfig 0|1|2|3|4|5|6|7 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:BWConfig? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:BWC 7 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:BWC? |
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Range |
0|1|2|3|4|5|6|7 |
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Preset |
7 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
7 |
|
Initial S/W Revision |
A.20.01 |
Sets the SRS bandwidth index B_SRS.
Determines the number of RBs occupied by the SRS.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:BANDwidth 0|1|2|3 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:BANDwidth? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:BAND 0 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:BAND? |
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Range |
0|1|2|3 |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
3 |
|
Initial S/W Revision |
A.20.01 |
Sets the SRS transmission comb.
Determines the subcarrier offset of the SRS within each RB.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:TCOMb <value> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:TCOMb? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:TCOM 0 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:TCOM? |
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Range |
0|1 |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
1 |
|
Initial S/W Revision |
A.20.01 |
Selects the frequency hopping bandwidth of sounding reference signal.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:HOPPing:BANDwidth 0|1|2|3 [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:HOPPing:BANDwidth? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:HOPP:BAND 3 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:HOPP:BAND? |
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Range |
0|1|2|3 |
|
Preset |
3 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
3 |
|
Initial S/W Revision |
A.20.01 |
Enter the frequency domain position RRC value which is from the upper layer for sounding reference signal.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:FDOMain:POSition <value> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:FDOMain:POSition? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:FDOM:POS 0 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:FDOM:POS? |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
23 |
|
Initial S/W Revision |
A.20.01 |
Sets the configuration Index for sounding reference signal.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:CINDex <value> [:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:CINDex? |
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SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:CIND 0 RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:CIND? |
|
Dependencies |
Periodicity (Tsrs) and Subframe Offset Configuration (Toffset) |
|
Preset |
0 |
|
State Saved |
Yes |
|
Min |
0 |
|
Max |
644 |
|
Initial S/W Revision |
A.20.01 |
Query only
This is read-only parameter and auto calculated.
Refer 36.213V8.5.0 Table 8.2-1
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:PERiodicity? |
|
SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:PERiodicity? |
|
Dependencies |
Subframe Configuration and Configuration Index (I_SRS) |
|
Preset |
2 ms |
|
State Saved |
No |
|
Initial S/W Revision |
A.20.01 |
Query only
This is read-only parameter and auto calculated.
Refer 36.213V8.5.0 Table 8.2-1
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:SFRame:OFFSet? |
|
SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:SFR:OFFS? |
|
Dependencies |
Subframe Configuration and Configuration Index (I_SRS) |
|
Preset |
"0,1" |
|
State Saved |
No |
|
Initial S/W Revision |
A.20.01 |
Query only
This is read-only parameter and auto calculated.
|
SCPI Command |
[:SOURce]:RADio:LTETdd:WAVeform[:ARB]:CCARrier<channel>:UL:SRS:FHOPping:STATe? |
|
SCPI Example |
RADio:LTETdd:WAVeform:CCARrier1:UL:SRS:FHOPping:STATe? |
|
Preset |
Off |
|
State Saved |
No |
|
Initial S/W Revision |
A.20.01 |