Group 1
This topic covers the Group 1 CELL_FACH settings.
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1. General Settings |
2. Preamble Settings |
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Miscellaneous Information |
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3. DPCCH Settings |
4. HSUPA Settings |
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1. General Settings
Scrambling Code (PRACH)
Range: 0 to 8191
Default: 0
Sets the scrambling code number for the PRACH part.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:SCRamblecode <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:SCRamblecode?
Scrambling Code (DPCH)
Range: 0 to 16777215
Default: 0
Sets the scrambling code number for the DPCH part.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:SCRamblecode <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:SCRamblecode?
Nmax-dpdch
Choice: 0 | 1
Default: 0
Sets the maximum number of DPDCH (Nmax-dpdch) to control the channel assignment.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:NMDPdch 0|1
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:NMDPdch?
HS-DSCH Configured
Choice: No | Yes
Default: Yes
Sets the HS-DSCH configured state to control channel assignment.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HCONfig 0|1
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HCONfig?
DPCCH Only Part Length
Range: 2 ms| 4 ms| 10 ms
Default: 10 ms
Sets the DPCCH only part transmission length. This parameter is available when the HSUPA E-DCH TTI is set to 2 ms. When the HSUPA E-DCH TTI is set to 10 ms, this value is fixed to the selection of 10 ms.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:DPCCh:LENGth 2|4|10
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:DPCCh:LENGth?
E-DCH Length
Range: 10 to 5000 ms
Default: 10 ms
Sets the E-DCH transmission duration. The resolution of this value is aligned with the value of E-DCH TTI.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:EDCH:LENGth <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:EDCH:LENGth?
DTX Length in ms
Range: 10 to 500 ms
Default: 10 ms
Sets the DTX period of Group 1 in microseconds. DTX Length in Chip will be recalculated after setting this value. This value is adjusted by the values of DPCCH/HSUPA length of Group 1 and the value of HSUPA E-DCH TTI of Group 2.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:DTX:LENGth <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:DTX:LENGth?
DTX Length in Chip
Range: 38400 to 1920000
Default: 38400
Sets the DTX period of Group 1 in chip. DTX Length in ms will be recalculated after setting this value. This value is adjusted by the values of DPCCH/HSUPA length of Group 1 and the value of HSUPA E-DCH TTI of Group 2.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:DTX:CHIP <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:DTX:CHIP?
Miscellaneous Information
Preamble Info
Indicates the Preamble miscellaneous information.
Normalized power (NormPwr)
DPCCH Info
Indicates the DPCCH miscellaneous information.
Normalized power (NormPwr), IQ branch mapping (IQ), Channel code (ChCode), Spreading factor (SF).
E-DPCCH Info
Indicates the E-DPCCH miscellaneous information.
Normalized power (NormPwr), IQ branch mapping (IQ), Channel code (ChCode), Spreading factor (SF)
E-DPDCH Info
Indicates the E-DPDCH miscellaneous information.
Normalized power (NormPwr), IQ branch mapping (IQ), Channel code (ChCode), Spreading factor (SF)
E-DCH Info
Indicates the E-DCH miscellaneous information (i.e. Block size and Puncture rate).
2. Preamble Settings
Signature
Range 0 to 15
Default: 0
Sets the signature code of PRACH Preamble.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:PREamble:SIGNature <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:PREamble:SIGNature?
Preamble Power
Displays the calculated PRACH Preamble power level in dB from DPCCH Power and Pp-e. The displayed power is in range of -50 to 10 dB with an inital value of -2.69 dB.
Power Preamble (Ppreamble) is calculated by: Ppreamble = Pdpcch - Pp-e.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:PREamble:POWer?
Pp-e
Range: -10 to 10 dB, Resolution: 1 dB
Default: 0 dB
Sets the PRACH Pp-e in dB (power offset between the PRACH Preamble and the DPCCH).
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:PPE <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:PPE?
Tp-a
Choice: 7680 | 12800
Default: 12800
Sets the Tp-a value expressed in units of chip. Tp-a specifies the time period (distance) between the PRACH preamble and the DPCCH.
The total time between the preamble and the DPCCH is calcurated from the Tp-a and Soffset values: Tp-a + 10240 + 256 * Soffset + 1024 chips.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:TPA 7680|12800
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:TPA?
Soffset
Range 0 to 9 (integer only)
Default: 6
Sets the Soffset of PRACH, which part of the time between the PRACH Preamble and the DPCCH transmission.
Each value of the range is a multiplier of 256 chips. So 0 is zero chips and 9 is 2304 chips.
The total time between the preamble and the DPCCH is calcurated from the Tp-a and Soffset values: Tp-a + 10240 + 256 * Soffset + 1024 chips.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:SOFFset <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:SOFFset?
Access Slot
Range 0 to 59
Default: 0
Sets the Preamble position.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:PREamble:ASLot <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]:PRACh:PREamble:ASLot?
3. DPCCH Settings
Power
Range: -40 to 0 dB
Default: -2.69 dB
Sets the DPCCH power level in dB. The value entered here is also used by the same setting in the Group 2 node.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:DPCCh:POWer <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:DPCCh:POWer?
Slot Format
Range: 1 | 3 | 4
Default: 1
Sets the slot format of DPCCH. The value entered here is also used by the same setting in the Group 2 node.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:DPCCh:SLOTformat
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:DPCCh:SLOTformat?
TPC Pattern
Choice: Up All | Down All | Custom Pattern
Default: Up All
Sets the TPC 
pattern of DPCCH. The pattern entered here is also used by the same setting in the Group 2 node.
The Custom Pattern slection opens a pattern editor for creating, editing, saving, or recalling a pattern.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:DPCCh:TPC:PATTern UALL|DALL|PATTern
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:DPCCh:TPC:PATTern?
If PATTern is the selection, use "0" or "1" in a string (example: "00011101011") to configure the pattern. The maximum pattern length is 2,048 bits.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:DPCCh:TPC:PATTern:PATTern
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:DPCCh:TPC:PATTern:PATTern?
4. HSUPA Settings
State
Choice: Off | On
Default: On
Enables or disables the HSUPA state. The state controls the channel generation of HSUPA of this group. The timing of Groups are not changed by the state value.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:STATe 0|1|OFF|ON
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:STATe?
E-DCH TTI
Choice: 2 | 10 ms
Default: 10 ms
Sets the transmission time interval (TTI) of HSUPA E-DCH in ms.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:TTI 2|10
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:TTI?
E-TFCI Table Selection
Choice: 0 | 1
Default: 1
Sets the table number of E-DCH Transport Block Size Table.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:ETABle 0|1
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:ETABle?
E-TFC Index
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Range: |
0 to 127 (E-DCH TTI = 2ms, E-TFCI Table Selection = 0) |
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0 to 125 (E-DCH TTI = 2ms, E-TFCI Table Selection = 1) |
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0 to 127 (E-DCH TTI = 10ms, E-TFCI Table Selection = 0) |
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0 to 120 (E-DCH TTI = 10ms, E-TFCI Table Selection = 1) |
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Default: |
41 |
Sets the E-TFC Index.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:ETFCi <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:ETFCi?
Happy Bit
Choice: Happy | Not Happy | Custom Pattern
Default: Happy
Sets the Happy Bit pattern.
Clicking Custom Pattern opens an extended Happy Bit window (i.e. for setting: Length, Fill Pattern, Start Index, Fill Length, Interval, Value, ...). Modify the pattern by clicking the box in Happy/Not Happy columns. The custom pattern can have a maximum length of 128000 bits.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:HBIT HAPPy|NHAPpy|PATTern
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:HBIT?
If PATTern is the selection, use"0" (Not Happy) or "1" (Happy) in a string (example: "00011101011") to configure the pattern.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:HBIT:PATTern "<string>"
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:HBIT:PATTern?
E-DPCCH Power
Range: -40 to 0 dB
Default: -2.69 dB
Sets the E-DPCCH power level in dB.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPCch:POWer <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPCch:POWer?
E-DPDCH Power
Range: -40 to 0 dB
Default: -2.69 dB
Sets the E-DPDCH power level in dB.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:POWer <val>
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:POWer?
Modulation Capability
Choice: QPSK (2 x BPSK) | 16QAM (2 x 4PAM)
Default: QPSK
Sets the E-DPDCH modulation capability
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:MCAPability QPSK|QAM16
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:MCAPability?
Maximum Channel Codes
Choice: SF256 (x1) | SF128 (x1) | SF64 (x1) | SF32 (x1) | SF16 (x1) | SF8 (x1) | SF4 (x1) | SF4 (x2) | SF2 (x2) | SF2 (x2) + SF4 (x2)
Default: SF2 (x2) + SF4 (x2)
Selects Spreading Factor (SF) and the number of E-DPDCHs configuration.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:MCCodes SF256|SF128|SF64|SF32|SF16|SF8|SF4|SF4SF4|SF2SF2|SF4SF4SF2SF2
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:MCCodes?
E-DCH Data
Choice: PN9 | Custom Pattern
Default: PN9
Selects the data of E-DCH.
The Custom Pattern slection opens a pattern editor for creating, editing, saving, or recalling a pattern.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:EDCH:DATA PN9|PATTern
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:EDCH:DATA?
If PATTern is the selection, use "0" or "1" in a string (example: "00011101011") to configure the pattern. The maximum pattern length is 81,920 bits.
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:EDCH:DATA:PATTern "<string>"
[:SOURce]:RADio:WCDMa:TGPP[:BBG]:ULINk:CFACh:GROup[1]|2:HSUPa:EDPDch:EDCH:DATA:PATTern?