Services provided to upper layers
This clause describes the different services provided by MAC sub-layer to upper layers.
- data transfer
- radio resource allocation
Functions of MAC layer
The following functions are supported by MAC sub-layer:
- mapping between logical channels and transport channels;
- multiplexing of MAC SDU's from one or different logical channels onto transport blocks (TB) to be delivered to the physical layer on transport channels.
- demultiplexing of MAC SDUs from one or different logical channels from transport blocks (TB) delivered from the physical layer on transport channels;
- scheduling information reporting;
- error correction through HARQ;
- priority handling between UEs by means of dynamic scheduling;
- priority handling between logical channels of one UE;
- Logical Channel prioritisation;
- transport format selection.
