Edge speed table

All About Edge/Gprs multislot classes

When buying a phone with GPRS/EDGE modem, you have to have a clear idea on the GPRS/EDGE multi classes. There are 17 classes in GPRS/EDGE system. If your requirement is basic you can go with GPRS/EDGE Class 10. If you need something to do with content uploads, class 10 will not sufficient, you need either Class 12/11/32/33 or 34. Ideally for uploads Class 12 is the cost effective option. You will get a clear picture on which model to choose on the basis of the tables below.  Most of the websites explain the speed of GPRS / EDGE in Time Slots. One Time Slot is equal to 59.2 Kilo Bits. Based on this calculation there are 3 tables.

  1. Timeslot table
  2. Kilobits table
  3. Kilobytes table

GPRS/EDGE Timeslot table

Multislot Class Downlink TS Uplink TS Active TS
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
30 5 1 6
31 5 2 6
32 5 3 6
33 5 4 6
34 5 5 6

GPRS/EDGE Kilobits table

Bandwidth is measured in Kilobits always. Eight bits are one byte. So if your ISP offer you a 1 MBPs speed, it means that you will get a download rate in 1024 divided by 8, which is 128 KiloBytes.

Multislot Class Downlink/Kbits Uplink/Kbits Active/Kbits
1 59.2 59.2 118.4
2 118.4 59.2 177.6
3 118.4 118.4 177.6
4 177.6 59.2 236.8
5 118.4 118.4 236.8
6 177.6 118.4 236.8
7 177.6 177.6 236.8
8 236.8 59.2 296
9 177.6 118.4 296
10 236.8 118.4 296
11 236.8 177.6 296
12 236.8 236.8 296
30 296 59.2 355.2
31 296 118.4 355.2
32 296 177.6 355.2
33 296 236.8 355.2
34 296 296 355.2

EDGE/GPRS Kilobytes table

If you download something over internet, your browser (such as Firefox / Chrome / internet explorer etc. ) will show the file transfer rate in Kilobytes.

Multislot Class Downlink KBytes Uplink Kbytes Active Kbytes
1 7.4 7.4 14.8
2 14.8 7.4 22.2
3 14.8 14.8 22.2
4 22.2 7.4 29.6
5 14.8 14.8 29.6
6 22.2 14.8 29.6
7 22.2 22.2 29.6
8 29.6 7.4 37
9 22.2 14.8 37
10 29.6 14.8 37
11 29.6 22.2 37
12 29.6 29.6 37
30 37 7.4 44.4
31 37 14.8 44.4
32 37 22.2 44.4
33 37 29.6 44.4
34 37 37 44.4
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