GSM / (E)GPRS: Physical Resource
Physical resource = 1 Timeslot on 1 Frequency Channel
(E)GPRS using Temporary Block Flow to identify radio resource
Physical resource = N Radio Blocks (=4 Normal Bursts) on 1 or more Timeslots.
Temporary Block Flow, TBF identifies allocated physical resource
Downlink Uplink
Symmetric data transfer
DownlinkUplink Downlink Uplink
Symmetric data transfer Asymmetric data transfer....................