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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
The time period between the successful negotiation of a SO32 connection and the start of the FER Count
Period is based on the current long code state, and will range from 0 seconds to 10.24 seconds.
The mobile station also resets its frame counters upon receiving the first sync frame.
Figure 7. TDSO FER With Frame Count Set to 512 Frames
During the second sync frame interval, the mobile station keeps a running count of:
• Good Frames Received
• Bad Frames Received
• Blank Frames Received
• Bad Frames Instead of Blank Frames Received
• Total Bad Frames Received
Also during the second frame interval, the test set keeps a running count of:
• Good Frames Transmitted
• Blank Frames Transmitted
At the end of the second frame interval, the test set retrieves frame count data from the mobile station and
calculates percent FER based on the following formula:
10.24 s
10.24 s
SO 32 Selected
First sync frame-
mobile station begins
counting frames
Second sync frame-
mobile station returns
frame counter data
512 20 ms Frames
512 20 ms Frames
FER Count Period
5.12 s
FER
1
TotalGoodFramesReceived
TotalTransmittedFrames
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Содержание 8960
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