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CDMA2000 1xEV-DO waveform pattern
Standard
MG3700A Vector Signal Generator
Tr igger
∗
, Clock
∗
Modulation signal (Uplink)
AN control, PER calculation
AN
•
Access network (AN) receiver test
GPP2 C.S0032 standard receiver tests (PER: Packet Error Rate) can be performed by selecting a reverse signal pattern required
for testing the AN. Since access terminal simulator protocols are not supported, an external controller must be used to control the
AN and calculate PER.
∗ Trigger: Timing for synchronizing the start of frame (frame trigger)
∗ Clock: Clock for synchronizing the chip rate 1.2288 Mcps (11 x 1.2288 MHz or 5MHz/10 MHz)
■ AWGN Supports Dynamic Range Test
(AWGN: Additive White Gaussian Noise)
When performing the receiver dynamic range test specified by
3GPP2, a 1xEV-DO modulation signal with AWGN is required.
Either of the AWGN waveform patterns AWGN_1.23MHz_x2 or
AWGN_1.23MHz_x1_5, which are stored on the MG3700A
internal hard disk, can be used for an AWGN signal.
Since a single MG3700A can add a CDMA2000 uplink
modulation signal and an AWGN signal internally and output
them as a combined signal, it is useful for a simple dynamic
range test for an AN receiver.
Wanted signal + AWGN screen Output waveform screen of wanted signal + AWGN
*MX370X_E_050127 1/28/05 8:50 AM Page 9