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S:\Hp8960\E1962B CDMA 2000\Pi Release\Reference Guide\Chapters\cdma2000_meas_tdso_desc.fm
TDSO Frame Error Rate Measurement Description
Possible Setup Issues
A call must be setup using SO32 (+F-SCH) and that call must be currently connected.
The measurement setup menu allows for specifying the FER confidence requirement. The FER confidence
requirement establishes a target FER rate. To meet standard minimum specifications, a specified FER
percentage must be attained with a confidence level of 95%. The TDSO FER measurement returns the
confidence level based on the actual average FER result obtained over the fixed frame count length. If the
confidence level is less than 95% for the specified FER confidence requirement, the test has not passed
minimum standards.
The supplemental channel information menu provides channel setup parameters including the supplemental
channel data rate, encoder type, and power level. Standards specify data rates and Eb/Nt. Eb/Nt can be set by
adjusting F-SCH and AWGN level.
If trigger arm is set to Single, the first TDSO FER measurement will be displayed and then the test set will
wait until it is triggered by a GPIB command or the START SINGLE key before the next sync frame is staged.
If “No F-SCH” is displayed in the bottom right portion of the display, the supplemental channel is not
connected. If “No Sync” is displayed, the sync channel has not been sent to the mobile station yet.
Interim results are displayed when the frame count is greater than 512 and the test set is able to retrieve
mobile station counter values after intermediate sync frames.
Integrity indicators (see “Integrity Indicator” ) do not apply to this measurement.
Related Topics
“Programming a TDSO Frame Error Rate Measurement”
“SETup:TFERror”
“FETCh:TFERror”
“INITiate”
“READ”
“ABORt”
“Test Adherence to Standards”
“TDSO FER (Frame Error Rate) Troubleshooting”
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