LTE

System information & DL-SCH data in LTE

System information 1920 bits or 1728 bits are to be transmitted for normal or extended CP resp.. The PBCH is transmitted every 40 ms. The bit scrambling depends on the...
Article Topics :

cell, lte, number of symbols used for phich, ofdma, PBCH, pbch mapping, sch lte, symbol, telecom

How Time structure in LTE?

EUTRAN OFDM symbols have a basic duration of 66.667 ?s. This means up to 2048 complex samples per OFDM symbol in time domain representation. A cyclic prefix is pretended to...
Article Topics :

cell, eutran, lte, lte mbms, prefix in lte, telecom, time slot of lte, Time structure in LTE

Synchronization of signals in LTE

504 different physical-layer cell ids are composed of 168 different physical-layer cell id groups each of 3 physical layer ids within the group There are - primary synchronization signal –...
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cell, harq, lte, telecom, UL and DL control, UL-SCH

How Reference signals Map in LTE?

For channel estimation different types of reference signals are in use: - Cell specific reference signals. - MBSFN reference signals. - UE specific reference signals CELL-SPECIFIC REFERENCE SIGNALS These signals...
Article Topics :

4 cell specific reference signal, cell, lte, lte reference signal, lte reference signal frequency shift, MBSFN, mbsfn reference signal mapping, Reference signals, subcarrier, subframe, telecom

Inter-cell interference coordination (ICIC) in LTE

Inter-cell interference coordination (ICIC) in LTE To aid downlink ICIC Relative narrowband transmission-power indicator A cell can provide this information to neighboring cells, indicating the part of the bandwidth where...
Article Topics :

cell, icic, interference, lte, relative narrowband transmit power, resource block, telecom, uplink, what is dl icic in lte?

Downlink Power control in LTE

The eNodeB determines the downlink transmit energy per resource element (lte epre). Downlink cell-specific reference-signal (RS) lte epre is constant across the downlink system bandwidth and constant across all subframes until...
Article Topics :

Downlink Power control in LTE, eNodeB, antenna ports, reference signal, user mimo, downlinkcell, cell structure, downlink power control in lte, enodeb, lte, lte dl power control, lte downlink power control, pa lte enodeb rs, power control, power control in LTE, power control lte donwlink, rs epre, telecom

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 (Control Plane) LTE...
Article Topics :

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 forwardingc plane, data control path, downlink power control in lte, lte enable closed loop uplink power control, lte integrity nas plane message, power control in LTE, u plane, UL and DL control

LTE Link Budget Tool Parameter and Example of LTE Link Budget Tool

The LTE link budget tool support the analysis for DL Traffic, UL Traffic, as well as signaling channel. Then the smallest radius is used as the final coverage radius based...
Article Topics :

link budget, budget, power, coverage, transmit,LTE Link Budget Tool, link budget toolcost231-hata, downlink power control in lte, lte advance, lte downlink channel mapping, lte link budget, lte up link, rf link budget, uplink

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 between the two...
Article Topics :

resource block, reference signal in lte resource block, frequency, block architecture, cyclic prefix, division mode, physical resource, frameactive, enodeb, google, harq, hlr, interleaving, prb lte, resource block, rf optimization, tdd frmae type2

LTE Architecture- SERVICE, EPC, E-UTRAN and User Equipment

lets talk about LTE Architecture- SERVICE, EPC, E-UTRAN and User Equipment. In the LTE network is divided into 2 basic networks, namely: 1. EUTRAN (Evolved Universal Terrestrial Radio Access Network) 2....
Article Topics :

access network, radio access, universal terrestrial, mobility management, network, gateway, packet, radio, mme, management, access, mobilityattach, enodeb, hlr, lte, lte basic, lte rf planning, lte ue, rf optimization, ue, uplink

Modulation and TB size

A 5-bit “modulation and coding scheme” yields the modulation order, i.e. QPSK, 16QAM or 64QAM. Implicitly the coding rate is given by a combination of the number of scheduled RBs...
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Modulation and TB size, modulation lte, lte rf, lte optimization, lte antenna, lte planning, lte optimizatin, lte basic"modulation and tbs index table" "lte", lte ue, mcs, telecom

Functionally of EPC in LTE

EPC ( Evolved Universal Terrestrial Radio Access Network) Functionally the EPC is equivalent to the packet switched domain of the existing 3GPP networks. EPC consist of:–MME (Mobility Management Entity)–SAE GW...
Article Topics :

attach, cdma, epc, hlr, lte, pcf, s-gw, telecom

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