LTE – eNodeB, MME and SAE Function in Short

LTE eNodeB, MME and SAE Function in Short management entity mme evolution sae system architecture evolution mme functions LTE mobile management mobility control paging messages.

Here I write in short about eNodeB functions, Mobile Management Entity (MME) functions and System Architecture Evolution (SAE) functions.

LTE – eNodeB functions

The eNodeB performs the following functions in LTE:

  • Radio Resource Management, Radio Bearer Control, Radio Admission Control,
  • Connection Mobility Control, Dynamic allocation of resources to LTE UEs in both Uplink and Downlink (scheduling)
  • IP header compression and encryption of user data stream
  • Selection of MME at LTE UE attachment
  • Routing User Plane data to LTE SAE Gateway
  • Scheduling and transmission of paging messages (originated from the MME)
  • Scheduling and transmission of broadcast information (originated from the MME or Operations, Administration and Maintenance (OAM)
  • Measurement and measurement reporting configuration for mobility and scheduling in LTE

LTE – Mobile Management Entity (MME) functions

The MME performs the following functions in LTE:

  • Distribution of paging messages to the LTE eNodeBs
  • Security control in LTE call
  • Idle state mobility control
  • SAE bearer control
  • Ciphering and integrity protection of NAS signaling

LTE – System Architecture Evolution (SAE) functions

The System Architecture EvolutionSAE Gateway performs the following functions for LTE:

  • Termination of LTE U-plane packets for paging reasons
  • Switching of U-plane for supporting UE mobility
  • QoS handling and tunnel management

This is only short work of eNodeB, Mobile Management Entity (MME) and System Architecture Evolution (SAE) which I already write in details in previous Topics.

Related Posts

Article Topics :