4G LTE

Here we discuss about LTE Technology, details on 4G and How to LTE.

X2 interface Function in LTE – A Connection between Two eNodeBs

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The X2 interface is the interface between the eNodeBs. X2 interface protocol stack is described in Figure. X2 Interface performs the following functions: X2-UP (User Plane) X2-CP (Control Plane) LTE X2-UP (User Plane) The LTE X2-UP protocol tunnels end-user packets between the LTE eNodeBs. The tunneling function supports the identification of packets with the tunnels … Read more

Function of Control plane protocol stacks in LTE

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The control plane includes the application protocol. It also includes the signaling bearers for transporting the application protocol messages. The application protocol is used for setting up bearers in the radio network layer. For example, radio access bearers or radio links. Figure shows “Control plane protocol stack” comprises Radio Resource Control (RRC), Packet Data Convergence … Read more

Function of User plane protocol stacks in LTE

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The user plane includes the data streams and the data bearers for the data streams. The data streams are characterized by one or more frame protocols specified for that interface. Figure shows “User-plane protocol stack” comprise Medium Access Control (MAC), Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC) and Physical (PHY) sub layers. Apart … Read more

Evolved Packet Core and Quality of Service QOS in LTE

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The LTE related core network evolution is referred to as Evolved Packet Core (EPC). LTE architecture is based on the system architecture evolution (SAE) model defined by the 3G Partnership Project (3GPP). EPC consists of the following network elements: Mobility Management Entity The Mobility Management Entity (MME) is the LTE mobility management and session management … Read more

LTE RAN – A link between UE and EPC in LTE Network

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LTE RAN provides the physical radio link between the User Equipment (UE) and the Evolved Packet Core (EPC) network. LTE RAN comprises eNodeBs. The eNodeB contains Transmit Receive Duplex Units (TRDUs) or Remote Radio Heads (RRHs) and communicates with the UEs. The eNodeB supports Multiple Input Multiple Output (MIMO). The LTE RAN – eNodeB provides: … Read more

LTE – eNodeB, MME and SAE Function in Short

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LTE – eNodeB, MME and SAE Function in Short Here I write in short about eNodeB functions, Mobile Management Entity (MME) functions and System Architecture Evolution (SAE) functions. LTE (Long-Term Evolution) represents a significant advancement in wireless communication technology, with key components such as the eNodeB (evolved NodeB), MME (Mobility Management Entity), and SAE (System … Read more

Current LTE Features and Benefits of LTE

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Here i write current LTE Features and benefits of LTE in small point note which will short description of LTE technology. Current LTE version features The following are the features of LTE Technology: Spectral efficiency (5 bps/Hz DL, 2.5 bps/Hz UL), user throughput (up to 100 Mbps) in LTE, latency (10 ms UE-eNodeB), cell edge … Read more

Initial LTE Network Design Options

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While the goals and design targets specified above may be aggressive, options have been approved for consideration in the design that when used properly, will lead to a more efficient network compared to the existing 3G network. Therefore, in the quest to produce the best network possible in a cost-effective manner while meeting the goal … Read more