gprs planning is highly linked to the abis & ater & gb dimensionning. from a radio planning point of view, special care must be brought to frequency planning (direct impact of C/I on the throughput performances) and in case of EDGE, there is a decrease of TRX output power (different modulation).
Also, radio capacity must be re-dimension, to cater for aditionnal data traffic (marketing inputs)
i need to know when you do drive test how to do calcul about some radio parameter to do a report for example -64 -69:75 PERCENT
-70 -79:80 PERCENT
HOW CAN DO THIS CALCUL.
The DTM feature (alcatel b10) allows to send or receive packets while being already in a CS communication.
During a CS call, one user can get PDCHs while still keeping its CS timeslot. Of course, the GPRS performances are a little bit reduced (if the MS is originally a 3+2 then, during a CS call, it can only get 2+1 PDCHs).
It doesn’t require hardware changes in the BSS nor NSS, it is a very “soft” change in the network.
i have some about our network
sometime, i see silence and interruption i don’t know this origin, Rxlev and Rxqual ok but silence and interruption.
Receive signal level RSL can provoke this problem is -50dbm