Message

These settings control the PRACH message functionality.

W-CDMA (PRACH) Configuration Buttons

This section defines the W-CDMA/HSPA+ PRACH's buttons. These buttons are available in all of the W-CDMA/HSPA+ Uplink's (PRACH) tree nodes.

	Restores all of the W-CDMA/HSPA+ channel's parameters to their default conditions.
	Begins the PRACH transmission. This button is active when the PRACH Start Trigger Source is set to Trigger in the PRACH node.

1. General Settings

State

Choice: On | Off | AICH

Default: On

Sets the state of the PRACH message part. The "AICH" selection enables the acquisition indication channel (AICH) preamble power ramping mode.

State (Multiple PRACH Mode)

Choice: On | Off

Default: On

Sets the state of the PRACH message part for the multiple PRACH generation mode.

Power (Control Part + Data Part)

Shows the message total power dB accumulated the message control part power dB and the message data part power dB.

2. Transmission Settings

Power Setup Mode

Choice: Pp-m | Total

Default: Pp-m

Sets the message part power setup mode. The Pp-m selection defines the message power from Pp-m (power difference from the preamble power to the message control part power). The Total selection defines the message power from the total message power.

Transmission Message Power

Range: -136 to 20 (dB)

Default: 0 dB

Sets the message total power value for the signal PRACH mode. This value is used when Power Setup Mode is "Total".

Transmission Message Power (Multiple PRACH Mode)

Range: -162.06 to 20 (dB)

Default: 0 dB

Sets the message total power value for the multiple PRACH mode. This value is used when the Power Setup Mode is set to "Total". This value indicates the power of one PRACH.

Pp-m

Range: -20 to 10 (dB)

Default: -4.56 dB

Sets Pp-m (the power difference from the last preamble power to the power of the message control part).

Pp-m (Multiple PRACH Mode)

Range: -20 to 10 (dB)

Default: -4.56 dB

Sets Pp-m (the power difference between the preamble and the message control part in PRACH) for the multiple PRACH generation mode.

Tp-m

Range: 1 to 15 (Access Slot)

Default: 3 Access Slots

Sets Tp-m (timing duration preamble to message part in access slots).

3. Control Part Settings

Power

Range: -40 to 0 (dB)

Default: -2.69 dB

Sets the power level of the PRACH message control part.

Data

Choice: PN9 | PN15 | FIX4 | Standard | Custom Pattern | User Data

Default: Standard

Sets the data of the PRACH message control part.

Channel Code

Range: 0 to 255

Default: 15

Sets the channelization code for the PRACH message control part.

Slot Format

Default: 0

Indicates the message control part slot format for PRACH.

Symbol Rate

Default: 15 ksps

Indicates the Symbol Rate (symbol per second: sps) for PRACH Message-Control part. This value is fixed to 15 ksps.

TFCI State

Default: On

Indicates the state of the transport format combination indicator (TFCI) bits.

TFCI Data

Range: 0 to 1023

Default: 0

Sets a bit pattern to be inserted into the transport format combination indicator (TFCI).

4. Data Part Settings

Power

Range: -40 to 0 (dB)

Default: 0 dB

Sets the power level of PRACH message data part.

Data

Choice; PN9 | PN15 | FIX4 | RACH | Custom Pattern | User Data

Default: RACH

Sets the data type to be inserted into PRACH message data part.

Channel Code

Range: 0 to 255

Default: 0

Sets the channelization code for the PRACH message data part.

Slot Format

Range: 0 to 3

Default: 2

Sets the slot format for the message data part of PRACH.

Symbol Rate

Selection: 15 ksps | 30 ksps | 60 ksps | 120 ksps

Default: 60 ksps

Sets the Symbol Rate (symbol per second: sps) for PRACH Message-Data part. This value is coupled to Slot Format.