Media Access Control (MAC)
Services
- Data Transfer
- Unacknowledged, no data segmentation - Reallocation of radio resources
- On request of RRC, change of MAC parameters - Reporting of measurements
- Traffic volume, quality indication to RRC
Functions
- Mapping between logical channels and transport channels
- Selection of appropriate Transport Format for each Transport Channel depending on instantaneous source rate
- Priority handling between data flows of one UE
- Priority handling between UEs by means of dynamic scheduling
- Priority handling between data flows of several users on the DSCH and FACH
- Identification of UEs on common transport channels
- Multiplexing/demultiplexing of higher layer PDUs into/from transport blocks delivered to/from the physical layer on common transport channels
- Traffic volume monitoring
- Dynamic Transport Channel type switching
- Ciphering for transparent RLC
- Access Service Class selection for RACH transmission
