S11 interface in 4G-LTE Telecom Network
S11 interface is one of the control plane interfaces in the 4G Core Network (EPC). It is the interface between the MME and the SGW.
It uses GTP-C protocol in the communication between the MME and the SGW.
Therefore, a GTP tunnel is established between the MME and the SGW in order to exchange signalling messages between each other.
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Your Guide to LTE Interfaces (S11, S5, S8, SGi, S1-U)
Let's talk about LTE Interfaces. In LTE, every interface between two network nodes, is having an interface name, that represents the protocols used in the communication between those nodes. Below graph shows LTE Interfaces that exist between different nodes, In order to understand LTE Interfaces, we need first to understand the difference between the control…
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LTE (4G) Network Architecture
LTE (4G) Network Nodes LTE refers to 'Long Term Evolution', and the architecture of the LTE (4G) network is as following, eNodeB The eNodeB is the 4G site that the UE connects to. It provides the radio interface to the UE. MME MME refers to 'Mobility Management Entity'. The MME is responsible for authenticating the…
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