Call Test Parameters (Gsm/Dcs/Pcs); Table 4. Gsm Call Parameters; Figure 16. Burst Output Shape; Table 5. Dcs Call Parameters - Motorola A920 Service Manual

Manual Test Procdures
GSM/DCS/PCS Call Processing

Call Test Parameters (GSM/DCS/PCS)

While the phone under test is in an active call, the pa-
rameters for each band should be verified as described.

Table 4. GSM Call Parameters

Pa ra m e te r
Burst Avg Power Out¹
Burst Output Shape
Time Advance Error
RMS Phase Error
Peak Phase Error
Frequency Error
RX Level Error@-105 dBm²
RX Quality @-105 dBm²
BER @-105, 10k bits³
¹Power Level = 5
²Set BS TCH level to -105 dBm
³Set BER TCH level to -105 dBm with 10k bits or 128 Frames

Table 5. DCS Call Parameters

Pa ra m e te r
Burst Avg Power Out¹
Burst Output Shape
Time Advance Error
RMS Phase Error
Peak Phase Error
Frequency Error
RX Level Error@-103 dBm²
RX Quality @-103 dBm²
BER @-103, 10k bits³
¹Power Level = 0
²Set BS TCH level to -103 dBm
³Set BER TCH level to -103 dBm with 10k bits or 128 Frames

Table 6. PCS Call Parameters

Pa ra m e te r
Burst Avg Power Out¹
Burst Output Shape
Time Advance Error
RMS Phase Error
Peak Phase Error
Frequency Error
RX Level Error@-104 dBm²
RX Quality @-104 dBm²
BER @-104, 10k bits³
¹Power Level = 0
²Set BS TCH level to -104 dBm
³Set BER TCH level to -104 dBm with 10k bits or 128 Frames
3 - 6
Low High
Lim it Lim it
Unit
31 33 dBm
1 1 P/F
-1 1 bit/sym
0 5 deg
-20 20 deg
-90 90 Hz
1 9
0 4
0 2 %
Low High
Lim it Lim it
Unit
28 32 dBm
1 1 P/F
-1 1 bit/sym
0 5 deg
-20 20 deg
-180 180 Hz
3 11
0 4
0 2 %
Low High
Lim it Lim it
Unit
28 32 dBm
1 1 P/F
-1 1 bit/sym
0 5 deg
-20 20 deg
-190 190 Hz
2 10
0 4
0 2 %
Motorola Confidential Proprietary
Burst Output Shape should fall within the standard lim-
its of the Power Ramp.
BER measurements is only required if RX Quality reads
a value of 4 or greater.

Figure 16. Burst Output Shape

GSM
Ch. 1
1800 Overview
Ch. 2
dB Max. Level: Auto Low Noise PCL:
R 1
--- ---
: / Off :
+0
-10
-20
-30
-40
-50
25.57 dBm
- 0.75 Sym.
-60
GSM 0
100 Bursts
-70
0.00 %
-80
0 20 40 60
Overview Power Modulation Spectrum
It is recommended that handover procedures be per-
formed as shown in the following table.

Table 7. GSM/DCS/PCS Handover

From
Tra ffic Pow e r
Cha nne l Control
Ba nd
GSM 975
DCS 512
PCS 512
A920/A925
Circuit
Switched
Single Slot
1 / 28.0 dBm Chan. / Meas Slot: 740 / 3
R
2
--- U
/ Off : : / Off
N
Current
Ok
Avg.BurstPower(Cur.)
Timing Adv. Error
TSC detected
Statiatical Counr
Out of Tolerance
80 100 120 140
Receiver
Audio
Quality
To
Tra ffic Pow e r
Cha nne l Control
5 124 19
0 885 15
0 810 15
Preliminary
Connect
Control
P/t Norm,
GMSK
Applic. 1
Applic. 2
Analyzer
Level
MS Signal
BS Signal
Network
Marker
Display
Menus