Establishment and Maintenance of the RRC connection in LTE

The establishment and maintenance of the RRC connection includes: 
  • Allocation of temporary identifiers between UE and E-UTRAN. 
  • Configuration of signaling radio bearer(s) for RRC connection. 
  • Low priority SRB and high priority SRB. 
  • Security functions including key management. 
  • Establishment, configuration, maintenance and release of point to point Radio Bearers
 The Mobility management functions includes: 
  • UE measurement reporting and control of the reporting for inter-cell and inter-RAT mobility. 
  • Handover. 
  • UE cell selection and reselection and control of cell selection and reselection. 
  • Context transfer at handover.