Anritsu Series MS278XB operation manual Code Domain Power Setup Screen

Measurements Modulation Measurements

WCDMA Uplink Code Domain Power

The Code Domain Power (CDP) measurement for Uplink measures the CDP for each code channel for each Orthogonal Variable Spreading Factor (OVSF) code. There are four graph type options for this measurement:

•Code Domain Power

•Code Domain Power with Zoom

•Code Domain Error

•Code Domain Error with Zoom

The measurement graph type can be selected from the WCDMA Graph Type dialog as shown in Figure 5-40.

Figure 5-40.Code Domain Power Setup Screen

In WCDMA Uplink, there are the DPCCH and DPDCH channels. In a HSUPA signal, there are DPCCH, DPDCH, HS-DPCCH, E-DPCCH, and E-DPDCH channels. In the CDP display, different types of channels are identified with different colors. Figure 5-41shows a Code Domain Power graph. The measuring signal is HSUPATest2SF2 and it consists of two SF2 E-DPDCH channels as follows:

•1 DPCCH channel C(256, 0)-Q

•1 DPDCH channel C(64, 16)-I

•1 HS-DPCCH channel C(256, 64)-Q

•1 E-DPCCH channel C(256, 1)-I

•2 E-DPDCH channels C(2, 1)-I, and C(2, 1)-Q

MS278XB OM 5-63