EV-DO CDA

NI-RFmx EV-DO 3.0 Help

Edition Date: January 2019

Part Number: 375499F-01

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CDA measurement provides measurements in the code domain. Basically, it provides code domain power analysis and the calculation of modulation accuracy measures for a selected code channel.

In detail, it provides the measures listed below.

CDA Code Domain Power Measures

For code domain power measures, CDA analyzes the code domain power of one or more slots for the base spreading factor configured through the property Physical Layer Subtype. The base spreading factor depends on the configured physical layer subtype and is 16 for subtype 0/1 and 32 otherwise.

Using the property CDA Pwr Unit, the measured power values can be configured to be absolute power values in dBm or relative power values in dB (in relation to the total code domain power).

The following code domain measures are computed:

  • CDA Results UL Total Pwr - Returns the total code domain power in dBm.
  • CDA Results UL Total Active Pwr - Returns total active code power either as absolute measure, in dBm, or as relative measure in dB.
  • CDA Results UL Mean Active Pwr - Returns the average active code power either as absolute measure in dBm or as relative measure in dB.
  • CDA Results UL Pk Active Pwr - Returns the maximum power among all active code channels either as absolute measure in dBm or as relative measure in dB.
  • CDA Results UL Mean Inactive Pwr - Returns the average code power measured among the set of inactive channels either as absolute measure in dBm or as relative measure in dB.
  • CDA Results UL Pk Inactive Pwr - Returns the largest measured code power among the set of inactive channels either as absolute measure in dBm or as relative measure in dB.
  • CDA Results UL I Mean Active Pwr - Returns the average power of all active code channels measured on the I-branch.
  • CDA Results UL I Pk Inactive Pwr - Returns the largest measured code power among the set of inactive channels on the I-branch and in the code domain of the base spreading factor.
  • CDA Results UL Q Mean Active Pwr - Returns the average power of all active code channels measured on the Q-branch.
  • CDA Results UL Q Pk Inactive Pwr - Returns the largest measured code power among the set of inactive channels on the Q-branch and in the code domain of the base spreading factor.
  • CDA Results UL Mean Pilot Pwr - Returns the mean power of the R-PICH.
  • CDA Results UL Mean Aux Pilot Pwr - Returns the mean power of the R-APICH.

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