eNB Functionalities

• Functions for Radio Resource Management: Radio Bearer Control, Radio Admission Control, Connection Mobility Control, Dynamic allocation of resources to UEs in both uplink and downlink (scheduling);
  
• IP header compression and encryption of user data stream;
  
• Selection of an MME at UE attachment when no routing to an MME can be determined from the information provided by the UE;
  
• Routing of User Plane data towards Serving Gateway;
  
• Scheduling and transmission of paging messages (originated from the MME);
  
• Scheduling and transmission of broadcast information (originated from the MME or O&M);
  
• Measurement and measurement reporting configuration for mobility and scheduling;
  
• Scheduling and transmission of PWS (which includes ETWS and CMAS) messages (originated from the MME).