RPICH

The RPICH (Reverse Pilot Channel) is an unmodulated, direct-sequence spread spectrum signal transmitted by a CDMA mobile station. A RPICH provides a phase reference for coherent demodulation and may provide a means for signal strength measurement.

1. General	2.Frame
State	Power Control Bits (Hex)
Power	Gating Rate
Walsh Code	EcNo
Walsh Code Length

Buttons

	This button sets all channels to equal power, and the total power to 0 dB. [:SOURce]:RADio:CDMA2000[:BBG]:REVerse:PADJust EQUal|SCALe
	This button scales all of the current channel powers so that the total power equals 0 dB, keeping the previous power ratios between the individual channels.
	Click the button to display the Code Domain Power (CDP) graph. This graph shows the position and power level of each channel, relative to the Walsh Code applied. After clicking this button, the button name changes to Hide Graph.
	Click the button to close the graph. After clicking this button, the button name changes to Show Graph.

Toggles between two code order display formats, Hadamard and Bit Reverse.

Hadamard uses an algorithm that displays each Walsh code in sequence and the composite representation of the traffic channel.

Bit Reverse uses an algorithm that displays the channels as a bar for each channel with the bar height proportionately representative of the channel power and the bar width proportional to the data rate.

1. General

State

Choice: On | Off

Sets the operating state of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh[:STATe] ON|OFF|1|0

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh[:STATe]?

Power

Range: -40 to 0 dB

Sets the power of the channel in dB.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh:POWer <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh:POWer?

Walsh Code

Display the Walsh Code of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh:WALsh?

Walsh Code Length

Display the Walsh code length of the channel.

2.Frame

Power Control Bits (Hex)

Range: 0x0000 to 0xFFFF

Set the power control bits for the subchannel of RPICH (Only available in RadioConfig 3/4 Traffic mode).

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh:PCB <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh:PCB?

Gating Rate

Choice: Full | Half | Quarter

Sets the Gating Rate of RPICH (Only available in RadioConfig 3/4 Enhanced Access mode and RadioConfig 3/4 Common Control mode).

FULL	This choice transmits all sixteen power control bits.
HALF	This choice transmits eight power control bits.
QUARter	This choice transmits four power control bits.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh:GRATe FULL|HALF|QUARter

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:TRAFfic:RPICh:GRATe?

EcNo

Range:

Min: -30 + NormalizedPower dB

Max: 30 + NormalizedPower dB

Sets the ratio of energy per chip to the noise power spectral density (expressed in dB) for the reverse Pilot Channel (RPICH).

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:CCONtrol:RPICh:ECNO <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:CCONtrol:RPICh:ECNO?