 radio timeslots can be matched by the supplied transmission to the site LLC/GTP buffers and BVC Used to match the PCU segmentation processing speed flow control of LLC (logical link control) frames into RLC blocks over the downlink GPRS Tunnelling Protocol (GTP) flow through each base station virtual circuit (BVC) Gb NSVC CIR Sets the transmission bandwidth between the SGSN and PCU/BSS. An adequate bandwidth or CIR committed information rate must be allocated on the Gb link for each Network Service Virtual Circuit (NSVC) to support the instantaneous demand from all BSs supporting EGPRS data transmission connected to a given NSVC Radio Network Planning and Optimisation DOWNLINK BTS Transmitter: Voice (>=Q3) MCS-1 MCS-2 MCS-3 MCS-4 MCS-5 MCS-6 MCS-7 MCS-8 MCS-9 Units Peak TX Power Average TX Power (2 dB backoff for 8-PSK) Isolator + Combiner + Filter Losses Cable and connector losses Antenna Gain EIRP: MS Receiver: Voice (>=Q3) MCS-1 MCS-2 MCS-3 MCS-4 MCS-5 MCS-6 MCS-7 MCS-8 MCS-9 Units Receiver Sensitivity (Static 1900) -107.0 -108.0 -106.9 -105.0 -102.6 -101.8 -99.8 -96.7 -93.7 -91.7 Receiver Sensitivity (TU50iFH 1900) -105.0 -103.4 -101.4 -97.3 -91.5 -97.5 -95.4 -90.4 -82.5 -84.5 Incremental Redundancy Gain At the following QoS Service Levels: Voice (>=Q3): 1% FER MCS-1 to MCS-9: 10% BLER **MCS-9: 30% BLER at TU50iFH 1900 Antenna Gain Body Loss Isotropic Power Required at Antenna (Static 1900) -104.0 -108,0 -106.9 -105.0 -102.6 -101.8 -99.8 -96.7 -94.7 -93.7 Isotropic Power Required at Antenna (TU50iFH 1900) -102.0 -103.4 -101.4 -97.3 -91.5 -97.5 -95.4 -90.4 -83.5 -86.5 Downlink Path Loss Voice (>=Q3) MCS-1 MCS-2 MCS-3 MCS-4 MCS-5 MCS-6 MCS-7 MCS-8 MCS-9 Units Downlink Path Loss (Static 1900) 145.5 149.5 148.4 146.5 144,1 141.3 139.3 136.2 134.2 133,2 Downlink Path Loss (TU50iFH 1900) 143.5 144.9 142.9 138.8 133.0 137.0 134.9 129.9 123.0 126.0 UPLINK MS Transmitter: Voice (>=Q3) MCS-1 MCS-2 MCS-3 MCS-4 MCS-5 MCS-6 MCS-7 MCS-8 MCS-9 Units Peak TX Power Average TX Power (4 dB backoff for 8-PSK) Antenna Gain Body 