Comp Error Summary Data (W-CDMA(3GPP)/HSPA)
When W-CDMA Code Division Multiple Access: One of several digital wireless transmission methods in which signals are encoded using a specific pseudo-random sequence, or code, to define a communication channel. A receiver, knowing the code, can use it to decode the received signal in the presence of other signals in the channel. This is one of several "spread spectrum" techniques, which allows multiple users to share the same radio frequency spectrum by assigning each active user an unique code. CDMA offers improved spectral efficiency over analog transmission in that it allows for greater frequency reuse. Other characteristics of CDMA systems reduce dropped calls, increase battery life and offer more secure transmission. See also IS-95.(3GPP) Demodulation is enabled, the Composite table trace provides a summarized list of error results derived from composite signal data. Composite error summary data is always computed from the first Slot in the measurement.
List of available results, see Composite Error Summary Table Results
- data results are computed only from the first measured slot after the Measurement Offset.
- You can choose to add the IQ Offset in the data results by selecting the Include IQ Offset parameter.
- MIMO Multiple Input, Multiple Output: A physical layer (PHY) configuration in which both transmitter and receiver use multiple antennas. Measurements: There is a separate trace result for each measurement Antenna (x).
Channel Error Summary trace data
There is also a Despread Channel table that provides channel derived symbol data and error summary results. See About Channel Error Summary Data
Querying summary table data results programmatically
To programmatically query the Trace Summary Table data results using the Summary() and SummaryUnit() methods in the MeasurementData object.
See the How To Query Summary Table Data Results topic for more information.
See Also
