Hello Experts.
Please find overall LTE sequence and inform if there are any missing steps / additions, etc.
- UE is off
- power ON UE
- frequency search
- timing sync
- cell search, where probably UE would find more than one cells
- cell selection
- MIB decoding
- SIB decoding
- initial RACH process
- registration/ authentication/ attach
- default EPS bearer setup
- now UE is in idle mode
- cell re-selection, if the current cell becomes weak or the UE moves to another cell region
- RACH process, when paging message comes or User makes a call
- setup dedicated EPS bearer
- receive data
- transmit data
- network asks UE to increase transmit power, if UE falls weak for the network
- network asks UE to decrease transmit power, if UE is too strong for the network
- network and UE provide handover process if required
- user stops the call and UE gets into IDLE mode