Specifications
33
base station transmitting PN offset 0 is expected to start a new short-code pattern
synchronous with the GPS even second clock. If the signal is received 3 chips after the
GPS even second clock, then the pilot delay is said to be 3 chips (1 chip ª 0.8
microseconds). Timing offsets can be due to both propagation delay and base station
timing problems.
Carrier frequency error is defined as the difference between the measured carrier
frequency and the user-specified carrier frequency. The measured carrier frequency is of
the dominant pilot signal. Carrier frequency error can be due to both base station carrier
error and Doppler shift (if moving).
1xEV-DO High Data Rate Receiver Measurements
Access to the 1xEVDO receiver measurements is via the cdma2000 to 1xEVDO Receiver
measurement upgrade software license, E6474A-136. The cdma2000 Receiver
measurement license must already be available on the E6474A platform to enable the
E6474A-136 1xEVDO receiver measurement set.
Existing Agilent CDMA “C” version receiver hardware is used for the 1xEVDO
measurements, however a firmware update may be required. This firmware upgrade is
free of charge and will be prompted for installation by the E6474A platform software on
the initial set-up attempt. Older “B” versio receivers can be upgraded through the Agilent
Service Center to support this option. Contact your field engineer for pricing.
Measurements and display capability are the same as those described in cdma 2000 Pilot
Channel Analysis.