User's Manual

Table Of Contents
RX FER Acceptance Test
FEB 2005 1X SC 4812T Lite BTS Optimization/ATP 4-23
PRELIMINARY
Background
Overview
This test verifies the BTS Frame Erasure Rate (FER) on all TCHs
currently configured on operator–selected MCC Cards (full rate at 1%
FER) at –119 dBm. All tests are performed using the external, calibrated
Test Equipment as the Signal Source controlled by the same command.
Measurements are made at the specified BTS RX Antenna Connection..
Equipment Operation During Testing
The Pilot Gain on each MCC will be set to 262 for each TX Antenna,
and the Forward Link for all TCH Elements from the MCC Cards will
be enabled. Appropriate BBX(s) must be keyed in order to enable the
RX Receive Circuitry. Operator–selected BBX Cards will be keyed
using only bbxlvl, to generate a CDMA Carrier with Pilot Channel
Element only.
Transmit Power Output is set at –40 dBm. Test Equipment Output Power
is set so that the received power at the BBX is –119 dBm. The Final
Output Power Setting of the Test Equipment takes into account the MPC
type, BTS RF Path Losses, and test Test Cable Insertion Losses. If
selected, the Redundant BBX will be assigned to the current RX
Antenna Paths under test..
Test Measurements
The LMF will prompt the MCC Channel Element under test to measure
all–zero Longcode and provide the FER report on the selected active
MCC on the Reverse Link for the Main and, if selected, Diversity RX
Antenna Paths. Results are evaluated to ensure they meet the following
specification.:
FER returned less than 1% and Total Frames measured is 1500
Redundant BBX Testing
After the test, the BBX and the Test Equipment will be de–keyed to shut
down the Pilot Signal and the active Channel Element, respectively. If
the Redundant BBX was tested, BBXR assignment to an active sector
will also be reset..
FER Acceptance Test
Perform the procedure in Table 4-9 to verify the FER on RX Antenna
Paths using selected MCC Cards and BBX Cards.
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