## 8 Modulations

05.013GPPGeneral descriptionPhysical layer on the radio pathTS

The modulation scheme may be either gaussian MSK (GMSK) with BT = 0,3 or 8-PSK, depending on the type of channel. As already mentioned the modulation rate is 1 625/6 ksymbol/s ( 270,83 ksymbol/s). This scheme is specified in detail in 3GPP TS 05.04 (Modulation and demodulation) [10].