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Harald Welte laforge at gnumonks.orgHi Xavier, On Thu, Apr 26, 2012 at 12:22:16PM +0200, carcelle wrote: > > you can increase the bitrate by adding more PDCH on other timeslots. > > You will lose those for voice, though. The nanoBTS is capable of > > dynamic TCH/F + PDCH switching, but we don't support that in OpenBSC > > yet. > > ok understand, TCH/F + PDCH repartitions based on your > how could i calcultate the theorical layer2/ip troughput available for one PDCH > and correlate it to the troughput measured from the MS to an external IP ? you can see the raw bitrates for different EDGE coding modes (PDCH coding scheme will vary depending on RF layer performance): https://en.wikipedia.org/wiki/Enhanced_Data_Rates_for_GSM_Evolution so it's 8.8 kbit/second / slot to 59 kbit/second /slot For pure GPRS it's 8 kbit/second / slot to 20 kbit/second / slot