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Base station and EPC communication principle
The internal architecture of the user equipment for LTE is identical to the one used by UMTS and GSM which is actually a Mobile Equipment (ME). The mobile equipment comprised of the following important modules: 1. Mobile Termination (MT): This handles all the communication. . The architecture of evolved UMTS Terrestrial Radio Access Network (E-UTRAN) has been illustrated below. The E-UTRAN handles the radio communications. . The architecture of Evolved Packet Core (EPC) has been illustrated below. There are few more components which have not been shown in the diagram to keep it. . Following table compares various important Network Elements & Signaling protocols used in 2G/3G abd LTE.
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FAQS about Base station and EPC communication principle
What is the role of EPC in LTE networks?
Let's delve into the technical details of the role of the EPC in LTE networks: Network Gateway Functions: Serving Gateway (SGW): The SGW is responsible for routing user data packets within the LTE network. It connects to the base stations (eNodeBs) and forwards user data packets between the eNodeBs and the PDN Gateway (PGW).
What is the difference between EPC & NGC?
EPC is classified into two types: traditional LTE core network (supporting access through LTE base stations) and upgraded LTE core network (also called EPC+, supporting access through 5G base stations). Next Generation Core (NGC): a 5G core network. NGC is a core network built based on 5G standards and supports access to 5G base stations.
How do EPC architecture components communicate with each other?
The EPC architecture components communicate with each other using various interfaces: S1 Interface: Between the eNodeB and the MME for control and between the eNodeB and the SGW for user plane. S11 Interface: Between the MME and the SGW for control plane. S5/S8 Interface: Between the SGW and the PGW for user plane.
What are EPC-based public safety networks?
The development of EPC-based public safety networks will enhance communication capabilities for emergency services, improving response times and coordination. The Evolved Packet Core (EPC) is the backbone of LTE networks, providing the high-speed, high-capacity, and low-latency connectivity required for modern mobile communication.
What are the components of EPC?
EPC consists of the SGW (Serving Gateway), PGW (Packet Data Network Gateway), MME (Mobility Management Entity), and HSS (Home Subscriber Server). It is connected to external networks such as IMS (IP Multimedia Core Network Subsystem).
Why is LTE/EPC a global standard technology?
For these reasons, LTE/EPC has become a global standard technology adopted by many mobile operators around the world. LTE is a wireless technology for access networks and EPC refers to a core network architecture that aggregates access networks including LTE and the existing 2G/3G.
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