Sunsea AIoT SIMCom SIM7075G User Manual page 68

There should be enough ground around the RF line. RF lines Routing prohibit right angles and
9
sharp angles, trying to trace circular or obtuse angle line.
10 The RF line reference GND should be complete. And avoid high speed lines crossing below it.
11 the GND side of the RF output pin should be non hot welding disk
The routing which is RF output PIN to antenna should be isolated from other high-speed
12
lines. And the routing should be 50Ωimpedance control.
C. Coding Schemes and Maximum Net Data Rates over Air Interface
Table 46: Coding Schemes and Maximum Net Data Rates over Air Interface
Slot class
1
2
3
4
5
6
7
8
9
10
11
12
GPRS coding scheme
CS 1 = 9.05 kb/s / time slot
CS 2 = 13.4 kb/s / time slot
CS 3 = 15.6 kb/s / time slot
CS 4 = 21.4 kb/s / time slot
EDGE coding scheme
MCS 1 = 8.8 kb/s/ time slot
MCS 2 = 11.2 kb/s/ time slot
MCS 3 = 14.8 kb/s/ time slot
MCS 4 = 17.6 kb/s/ time slot
MCS 5 = 22.4 kb/s/ time slot
MCS 6 = 29.6 kb/s/ time slot
MCS 7 = 44.8 kb/s/ time slot
MCS 8 = 54.4 kb/s/ time slot
MCS 9 = 59.2 kb/s/ time slot
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Channel defintion(GPRS/EDGE)
DL slot
number
1
2
2
3
2
3
3
4
3
4
4
4
Max data rata（4 slots）
36.2 kb/s
53.6 kb/s
62.4 kb/s
85.6 kb/s
Max data rata（4 slots）
35.2 kb/s
44.8 kb/s
59.2 kb/s
70.4 kb/s
89.6 kb/s
118.4 kb/s
179.2 kb/s
217.6 kb/s
236.8 kb/s
SIM7075G User Manual V1.00
UL slot number Active slot number
1 2
1 3
2 3
1 4
2 4
2 4
3 4
1 5
2 5
2 5
3 5
4 5
Modulation type
GMSK
GMSK
GMSK
GMSK
Modulation type
GMSK
GMSK
GMSK
GMSK
8PSK
8PSK
8PSK
8PSK
8PSK
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