CDP Composite (TD-SCDMA)
shows the Code Domain Power trace data for the composite signal for the specified sub-frame and timeslot. Code Domain Power (CDP) is an analysis of the distribution of signal power across the set of code channels normalized to the total signal power.
View CDP trace data as absolute power by clearing the check box ( tab).
Display Format
The data is shown in a multi-color format that assigns a unique color to each code layer and related active code channels. This makes it easy to visually identify and distinguish the active code channels () for a given code layer (). The colors are also user definable (see Display Preferences > Color tab).
The y-axis shows the power level and the x-axis shows the Code channel. The x-axis annotation and marker location are based on the lowest symbol rate (ksyms/sec), or equivalently, the highest spread code length. You can also use the code order format parameter to rearrange the placement the displayed Code Channels (See Code Order)
This example display Trace A Marker shows the following:
|
SF0 |
Sub-frame 0 |
|
TS2 |
Timeslot 6 |
|
Symbol Rate: |
160 Ksyms/s |
|
Spread Code Length: |
8 |
|
Code Channel: |
1 |
|
Relative Power Level: |
-7.754 dB |
|
Asterisk *: |
The asterisk (*) indicates that the marker is positioned on an active channel. |
Use the CDP Layer trace data display to view only one code layer () at a time.
See Also
