Operating Manual Vol 1 - ES Documentation

Digital Standard 3GPP W-CDMA (FDD)SMIQParameters in the PRACH only mode:Fig. 2-120DIGITAL STD – WCDMA/3GPP – MS CONFIGURATION: PRACH only Mode menuPREAMBLEREPETITIONSPREAMBLE POWERDATA PART POWERCONTROL PARTPOWERMESSAGE PARTLENGTHNumber of repetitions of the preamble. Values between 1 and 10 can beselected.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:PREP 3Power of the components of the PRACH. The value range of the power is from–60 dB to 0 dB.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:PPOW –5Power of the data components of the PRACH. The value range of the power isfrom –60 dB to 0 dB.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:DPOW –3Power of the control components of the PRACH. The value range of the poweris from –60 dB to 0 dB.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:CPOW –7Length of message parts in Frames. Lengths 1 and 2 frames can be set.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:MLEN 2SIGNATUREThis field permits to determine the signature to be used for the PRACH.Values between 0 and 15 are possible.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:SIGN 2ACCESS SLOT# Shifting of the starting time of the PRACH. The value range is 0 to 14.(Shifting of the starting time in time slots can be calculated as follows:2 * Access Slot #).IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:ASLO 2SYMBOL RATEDATA / DATAPATTERNTFCISymbol rate of the PRACH. It is possible to select between 15 ksps, 30 ksps,60 ksps and 120 ksps.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:SRAT D30kSelection of the data source for the DATA field. Selection from PN9, PN11,PN15, PN16, ALL0, ALL1 and PATTern. The PN generator function isexplained in section 2.12.3, for example.If PATTern data type is used, the pattern can be modified with a special editor.The length is limited to 24 digits.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:DATA PN9IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:PATT #H1234, 15Value of the TFCI (Transport Format Combination Indicator) field in the controlpart of the PRACH. The value range of the TFCI is 0 to 1023.IEC/IEEE-bus command :SOUR:W3GP:MST2:PRAC:TFCI 1231125.5555.03 2.202E-9