Specifications

Chapter 6 145
Test Parameters
Parameter descriptions
11 CP Delay (+) or Advance (−) for Trigger
This parameter controls a trigger delay that provides an internal
trigger to the HP/Agilent 8922 analyzer 3 timeslots after a burst is sent
on the downlink. Since the mobile station timing error is measured
relative to this trigger event, the delay or advance for trigger should
normally be left at its default value of 0. The range is 0 to 1354.0 T (bit
periods).
Default value The default delay is 0 T (bit periods).
Example If the mobile station has a timing error that causes it to respond on the
uplink 10 bit periods later than the expected time period of 3 timeslots,
you could enter 10 in this field to correct for this error.
12 RT Default Traffic Channel
This parameter sets the traffic channel for the serving cell.
Default value The GSM900 default RT Traffic Channel is 62. The DCS1800 default
RT Traffic Channel is 699. The PCS1900 default RT Traffic Channel is
699.
Example For GSM, if you want a traffic channel (ARFCN) of 124, you would enter
124 into the value field. The range is 1 to 124. For DCS this value
would be between 512 and 885, and for PCS between 512 and 810.
NOTE This parameter is ignored if parameter RT TCH [0=single
1=hopping 3 freqs] is set to 1.
13 RT Timeslot for TCH/FS
This parameter selects the timeslot for a full-rate speech traffic channel
(TCH/FS). The range is 2 through 6.
NOTE The HP 8922 uses timeslot 0 for transmitting a BCH. Timeslots 1 and 7
are not allowed for traffic channels because they are needed for the HP/
Agilent 8922 RF generator to switch from BCH to TCH ARFCN
frequencies.
Default value The default TCH timeslot is 4.
Example If you want to assign the uplink/downlink TCH to the timeslot position
of 2, 3, 5, or 6, enter that number in the value field.