Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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Non Signalling: Power Measurements CMU-K20/K21/K22/K23/K24
1115.6088.12 4.34 E-11
10 8 10 10
8 10
t /
µ
s
P / dB
-30
(***)
-6
+2.4
+4
-15
-2
(*)
(**)
2 2 2
2
7056/13 (542.8)
µ
s
Normal burst: 147 symbols
0
-28
.0
µ
s
-1
8
.0
µ
s
-1
0
.0
µ
s
0.
0
µ
s
2.
0
µ
s
4.
0
µ
s
53
8
.8
µ
s
54
0.
8
µ
s
54
2
.8
µ
s
55
2.
8
µ
s
56
0
.8
µ
s
57
0
.8
µ
s
Fig. 4-12 GSM power/time template for normal bursts with 8PSK modulation
(according to GSM05.05 version 8.5.0; see explanation after previous figure)
The limit lines for multislot configurations are based on the single-slot limit lines:
Multislot
configurations
According to GSM 11.10, the power/time template for multislot configurations coincides with
the template for a single GSM burst except in the guard period between every two
consecutive active timeslots, where the output power shall not exceed the level allowed for
the useful part of the first timeslot or the level allowed for the useful part of the second
timeslot plus a multislot guard level of 3 dB, whichever is the highest. The template for two
consecutive 8PSK modulated timeslots with the same output power is shown in
Fig. 4-13
below
.
t /
µ
s
P / dB
Normal burst: 147 symbols
Normal burst: 147 symbols
Guard Period:
9.25 symbols
Multislot Guard Level
Fig. 4-13 GSM power/time template for multislot configurations
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