- At the end of the procedure, the UE is RRC connected
- UE and eNodeB are able to exchange data using dedicated radio resources
This procedure is also used in case of:
- Initial access from RRC_IDLE
- RRC Connection Re-establishment procedure
- Handover
- PDSCH signaled through PDCCH with RNTI = PRACH subframe number
- Contains the signature index of the detected RACH preamble (1rst contention resolution step)
- Contains the timing alignment command to apply (2 ways transmission time)
- Contains a temporary RNTI assigned to the UE
- Contains the resource assignment for next PUSCH (acts as DCI0)
- is made up of 6 RBs anywhere in the spectrum.
- occupies between 1 and 3 sub-frames per frame.
- is generated from the Zadoff-Chu sequence.
- is associated to an RA-RNTI.
- The RA-RNTI, to match the response with the preamble
- Timing alignment information
- The Temporary C-RNTI
- The initial UL grant, allocation of resources for the temporary C-RNTI.