LTE

How Non Access Stratum procedures works in LTE

The procedures for the Non Access Stratum, especially power management procedures are substantially similar to UMTS. Main change is that the UMTS EPS allows concatenation certain procedures
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ue related information, Non Access Stratum, Access Stratum, Non Access, procedures, periods of inactivity, inactive to active, ecm idle mme, paging message, ecm idle, mme, e utran, radio bearers

LTE air interface characteristics & LTE Channel Function

The air interface is the radio-based communication link between the mobile station and the active base station. LTE air interface supports high data rates. LTE uses Orthogonal
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logical channels, LTE air interface, LTE Air interface characteristics, transport channels, access control, division multiple, frequency division, mac

X2 interface Function in LTE – A Connection between Two eNodeBs

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
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X2 interface Function in LTE, A Connection between Two eNodeBs, traffic load, X2 User Plane, X2 Control Plane, transport network, transport layer, two eNodeBs Connection Interface, plane pdus, load management, data forwarding

S1 interface – A Single Interface between LTE RAN and evolved packet core

The S1 interface is the interface between the LTE RAN and evolved packet core. S1 interface protocol stack is described in Figure. S1 performs the following functions:
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S1 interface, control plane, enodeb, mme, s gw, user plane, transport network, radio bearer, protocol, network layer, ip transport, evolved packet, data delivery, interface,

Function of Control plane protocol stacks in LTE

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
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Function of Control plane protocol stacks in LTE, sublayer, application protocol, physical layer, application protocol, nas, access stratum, measurement reporting, pdcp sublayer, lte radio, link control, enodeb, access control

Function of User plane protocol stacks in LTE

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
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Function of User plane protocol stacks in LTE, user plane protocol, access control, rlc, pdcp, rrc, ue, lte, user plane, protocol

Evolved Packet Core and Quality of Service QOS in LTE

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
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Evolved Packet Core and quality of service qos in LTE, quality of service, evolved packet core, pdn gw, packet core, policy enforcement, session management, core network, mme

LTE Frame Structure and Resource Block Architecture

LTE Frame Structure The figure below shows the LTE frame structure under Time division mode (TDD) Type 2 and Frequency Division mode (FDD) Type 1. Main differences
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resource block, reference signal, frequency, block architecture, cyclic prefix, division mode, physical resource, frame

Downlink Power control in LTE

The eNodeB determines the downlink transmit energy per resource element (EPRE). Downlink cell-specific reference-signal (RS) EPRE is constant across the downlink system bandwidth and constant across all
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Downlink Power control in LTE, eNodeB, antenna ports, reference signal, user mimo, downlink

How UE Switch to Service types in LTE?

The action of camping on provides access to services. The network provides different levels of service to a UE in either Idle mode or Connected mode. Three
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How UE Switch to Service types in LTE?, acceptable cell, suitable cell, selection criteria, normal service, barred service