DPCHo

The DPCHo is a DPCH channel that can be used to simulate an individual intracell interferer in the cell with one code. For uplink timeslots, a spreading factor of SF8 or SF16 may be selected.

Timeslot 

Identifies the timeslot used for the DPCHo channels.  

Power

Range: –60 dB to 0 dB

Enter the power level for each timeslot with DPCHo channels. The channel power will be calculated and allocated to the RUs. See Power Settings for details.

Start Code

Range: 1 to 16

Enter the lowest channel code for the specified number of DPCHo channels in each timeslot.

Number of DPCHo

Range: 0 to 16 on SF16; 0 to 8 on SF8 

Enter the number of DPCHo channels for each timeslot. The number of DPCHo channels that can be added depends on the resource units available in the timeslot from the selected start code. If the specified number of resource units are not available, the status bar displays an error message.

Spreading Factor

Range: 16, 8

For uplink timeslots, click the to the right of the cell and select the spreading factor that will apply to all DPCHo channels in the timeslot. Only one spreading factor is allowed in each timeslot.

For downlink timeslots, the spreading factor is fixed at SF16.

Timing Offset 

Range: –8 to 8 chips

Default: 0 chips

Enter a value to set the timing offset for the selected timeslot. If the OSR is equal to 8, 16, 24 or 32, the timing offset values increment by 0.125 chip; If the OSR is set to other values, the timing offset values increment by 1 chip. Physical channels summed in phase produce a high crest factor (high peak-to-average ratio). Offsetting the timing can minimize the crest factor.