What is E-UTRAN in LTE?

What is E-UTRAN in LTE?

U. (Evolved-UMTS Terrestrial Radio Access Network) E-UTRAN is the air interface in an LTE cellular network. Officially, E-UTRAN governs the base station, while E-UTRA (without the “N”) defines the mobile device side. E-UTRAN uses the OFDMA modulation method for the downlink and SC-FDMA for the uplink.

What protocol is LTE?

Long term evolution (LTE) is the next step forward in cellular 3G services. LTE technology is a based on a 3GPP standard that provides for a downlink speed of up to 150 megabits per second (Mbps) and an uplink speed of up to 50 Mbps.

What is E-UTRA band?

E-UTRA or Evolved Universal Terrestrial Radio Access is a wireless communication technology that provides a high data rate, low latency (5 ms) communication link between mobile phones and base stations. Trials for the technology started in 2008.

What is eNB LTE?

E-UTRAN Node B, also known as Evolved Node B (abbreviated as eNodeB or eNB), is the element in E-UTRA of LTE that is the evolution of the element Node B in UTRA of UMTS. Traditionally, a Node B has minimum functionality, and is controlled by a Radio Network Controller (RNC).

What is the difference between Geran and UTRAN?

GSM EDGE Radio Access Network (GERAN) is a radio access network architecture, based on GSM/EDGE radio access technologies. The GERAN is fully harmonised with the UMTS Terrestrial Radio Access Network (UTRAN) through a common connectivity to the UMTS core network. The GERAN is defined in UMTS Release 5.

What is X2 interface?

X2 interface. A point-to-point logical interface between two eNodeBs with the E-UTRAN. It supports the exchange of signaling information between two eNodeBs and supports the forwarding of protocol data units (PDUs) to the respective tunnel endpoints. X2 Application Protocol (X2AP) Protocol used by the X2 interface.

What is the access technique used by an LTE or LTE a network *?

An LTE network employs the multiuser variant of the orthogonal frequency-division multiplexing (OFDM) modulation scheme, called orthogonal frequency-division multiple access (OFDMA), for its downlink signal.

What are LTE layers?

As defined by 3GPP, LTE Layer 2 structure consists of PDCP/RLC/MAC layers. Transport channels are located between the physical layer and MAC layer. MAC multiplexes RLC links and manages scheduling and priority handling via logical channels. The diagrams below show the structure for the downlink and uplink of Layer 2.

What does Utra stand for?

Universal Terrestrial Radio Access
Universal Terrestrial Radio Access (UTRA) is a standard for 3G mobile communications services devised by the 3rd Generation Partnershop Project (3GPP).

What is eNB Telecom?

The eNB is a complex base station that handles radio communications with multiple devices in the cell and carries out radio resource management and handover decisions. There is no need for a centralized radio network controller in LTE.

What is the difference between NodeB and eNodeB?

What is the difference between NodeB and eNodeB? Node B is the radio base station for UMTS (Universal Mobile Telecommunications System) networks, eNodeB is the radio base station for LTE (Long Term Evolution) networks. LTE uses Orthogonal Frequency Division Multiple Access (OFDMA) in Downlink.

What is LTE E-UTRAN?

LTE E-UTRAN and its Access Side Protocols | Radisys White Paper3 Radio Protocol Architecture Access Stratum Logically, LTE network protocols can be divided into control plane (responsible for managing the transport bearer) and user plane (responsible for transporting user traffic). User Plane Protocols

How does the EUTRAN protocol stack work?

Interfacing layers to the EUTRAN protocol stack: NAS: Protocol between the UE and the MME on the network side (outside of EUTRAN). Between others performs authentication of the UE, security control and generates part of the paging messages.

What is the difference between legacy and E-UTRAN?

While legacy networks employed a hierarchical architecture, E-UTRAN uses a flat architecture. The functions of the eNB in E-UTRAN systems include not only base station (NodeB) functions to terminate the radio interface but also the functions of the Radio Network Controller (RNC) to manage radio resources.

What is the evolved UTRAN protocol?

“The evolved UTRAN consists of eNBs, providing the evolved UTRAN U-plane and C-plane protocol terminations towards the UE. The eNBs are interconnected with each other by means of the X2 interface.