M10 Hardware Design
M10_HD_V3.0 - 79 -
Appendix B: GPRS multi-slot classes
Twenty-nine classes of GPRS multi-slot modes are defined for MS in GPRS specification.
Multi-slot classes are product dependant, and determine the maximum achievable data rates in
both the uplink and downlink directions. Written as 3+1 or 2+2, the first number indicates the
amount of downlink timeslots, while the second number indicates the amount of uplink timeslots.
The active slots determine the total number of slots the GPRS device can use simultaneously for
both uplink and downlink communications. The description of different multi-slot classes of the
M10 module support is shown in Table 37.
Table 37: GPRS multi-slot classes
Multislot class Downlink slots Uplink slots Active slots
1 1 1 2
2 2 1 3
3 2 2 3
4 3 1 4
5 2 2 4
6 3 2 4
7 3 3 4
8 4 1 5
9 3 2 5
10 4 2 5
11 4 3 5
12 4 4 5
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