Specifications

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Once the drive test has been configured to match the mobile phone, the
ESG Option 201 personality must also be configured appropriately, as
follows:
• Frequency set to frequency of mobile phone
• Amplitude set to an appropriate level, such as –20 dBm
• Pilot channel configured
• Sync channel and appropriate Sync type configured
• Paging channel configured
• Fundamental traffic channel(s) may be configured, optionally
• Other parameters, such as PN Offset, may be varied as desired
Once the ESG has been appropriately configured, the drive test software
may be run. With the phone turned on, load the drive test software and
select the appropriate project. Click on the collection softkey, and then
on the icons titled phone virtual front panel and the messages virtual front
panel. The drive test software should now be ready. By turning the phone
off, then on, it will quickly synchronize to the ESG and display the sync
and paging messages as shown in Figure 14. The computer display
windows show the transmitter’s signal strength, as well as the stream of
messages and contents being received.
Figure 14. Screen shot from E7473A CDMA Drive test system monitoring the ESG Pilot, Sync, and paging channels
Optionally, to test the receiver’s ability to track multiple basestations, two
ESGs may each be independently configured as IS-95 basestations with
Pilot, Sync, Traffic, and Paging channels. The mobile phone would be
expected to keep track of both basestations and select the appropriate one
with the stronger Pilot signal. The Sync message from the mobile phone
would indicate the selection.