What is the difference between 4G and 4G LTE?

Many people use the terms 4g and 4g interchangeably, but they are not the same. Lets find out the difference…. Features of 4g 4G is the next step above and...
Article Topics :

access in lte, data lte, downlink, enodeb, epc, epc lte, epc lte architecture, fdma, frequency, interleaving, lte basic, lte rf planning, lte ue, mimo

How Many Broadcast Channels & what’s it work in GSM ?

BCCH(Broadcast Control Channels) Downlink Only. Broadcast information of the serving cell (System Information). Transmitted on timeslot zero of BCCH carrier. Read only by idle mobile at least once every 30...
Article Topics :

BCCH, bsic, carrier, cell, CHANNEL, code, downlink, frame, frequency, gsm, idle, information, lte, mobile, SCH, system

Main Characterictics of WCDMA

Support two basic modes: FDD and TDD modes High chip rate (3.84 Mcps) and data rates (up to 2 Mbps) Employs coherent detection on uplink and downlink based on the...
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Main Characterictics of WCDMAcdma, cell, data, downlink, fast, fdd, frequency, gsm, packet, power control, tdd, telecom, uplink, WCDMA / 3G

WCDMA Radio Interface Channel Definition

Logical Channel = information container  Defined by is transferred. Transport Channel = characteristics of transmission Described by and with data is transmitted over the radio interface . Physical Channel =...
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cdma, CHANNEL, code, frequency, logical, physical, telecom, transport

CDMA Channel Frequencies & Calculation

The 850MHz CDMA band is most popularly used all over the world.This band as mentioned in the previous slide works between       824-849MHz Used for the Reverse link communication      ...
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CDMA Channel Frequencies, mhz, frequency, channels, reverse, forwardapn, BCCH, cdma, CHANNEL, epc, forward, frequency, generate, lte, orthogonal, pn, pn code, processing gain, rho, traffic, vrf, walsh

Which Bands Used in WCDMA ?

There are different band in different country but most of commonly used band we will discuss here. Main bands : means basic band when 3G commercial launch by Private or public...
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wcdma band, 3g band, 3g frequency, 3g spectrum, 3g band type, wcdma band usedband, cdma, CHANNEL, dl, frequency, mhz, telecom, ul, uplink, WCDMA / 3G

3G Spectrum Allocation

How 3G Spectrum Allocation? 3G Spectrum Allocation is different in different country but mainly its all having as per below figure. ITU has allocated 3G Spectrum Allocation 230 MHz frequency...
Article Topics :

3G Spectrum Allocation, itu, downlink band, uplink band, spectrum band, wcdma 3g band3g spectrum allocation, downlink, frequency, imt 2000, itu, mhz, telecom, uplink

OFDMA Transmitter in LTE

How OFDMA Transmitter in LTE ? In the downlink, OFDM is selected to efficiently meet E-UTRA performance requirements. With OFDM,  it is straightforward to exploit frequency selectivity of the multi-path...
Article Topics :

OFDMA Transmitter, ofdma, ofdmbandwidth, cell, e-utra, fdma, frequency, lte, ofdm, ofdm in lte, ofdma, telecom

PN Code Generation & Masking

  PN Code Generation PN Code Generation PN codes are generated from prime polynomials using modulo 2 arithmetic. The state machines generating these codes are very simple and consist of...
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pn code cdma, pn, time, masking, codes, generationcdma, CHANNEL, epc, forward, frequency, generate, gsm, hlr, lte, orthogonal, pn, pn code, processing gain, traffic, vlr, vrf, walsh

How Walsh Code Generate in CDMA

• Definition: Orthogonal functions have zero correlation.  Two binary sequences are orthogonal if the process of “XORing” them results in an equal number of 1’s and 0’s. Example:   0000...
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orthogonal, sequence, codes, channelsapn, cdma, CHANNEL, forward, frequency, generate, orthogonal, pn, pn code, processing gain, traffic, vlr, walsh, walsh table cdma

Spread Spectrum Concept

Article Topics :

Spread Spectrum Conceptapn, BCCH, cdma, CHANNEL, epc, forward, frequency, generate, gsm, lte, orthogonal, pn, pn code, processing gain, traffic, vrf, walsh

Affects of the Channel in LTE MIMO

To understand the impact of the channel, let’s assume that the base station receiver is facing many challenges in the same MIMO receiver that universal areas, but also must receive...
Article Topics :

Affects of the Channel in LTE MIMO, base station, orthogonal, test signals, receiver, mimo receiver, the channel, normal operation lte channel, direct mimoefrequency, lte rf planning, lte ue, mimo, radio, resource block, rho, vlr

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