At first you have to calculate the TS no. for E1
1. TS needed for BCCH
2. TS needed for SDCCH/site
3. TS needed for TCH/site
4. TS needed for PDCH/site
5. TS needed for LAPD/site
6. TS needed for EDGE rate/site (eg. if you use MCS3-MCS6, then you need at least 2 TS)
7. Multiplex mode (4:1 0r 2:1)
EDAP is basically abbreviated as EDGE Dedicated Abis Pool. It is the operator who has to decide on how many TS to be allocated for EDAP. n in that EDAP we can allocate a maximum of 8TS – Dedicated for EDGE for one PCM provided you give the concentration factor as 4:1.
this is typical “packet” dimensionning. Just sum up all the throughputs at BH (cs + ps + sig + o&m), take 30% (ex.) margin, and see if it all fits within 2mbps…
Yet, usually, you already have your E1 link. By switching from E1 to IPoE1, you will gain a lot of capacity. There is no need to do a dimensionning, because there is no risk of congestion. And then you can monitor your IP load thanks to BSS counters.
The next step is to gradually increase your radio capacity until you’re reaching your Abis IP capacity.