GSM

ERP,EIRP,dB and dBm definition in RF Planning

ERP,EIRP,dB and dBm calculation are Most important thing to take care in RF Planning of any site. Isotropic RF Source A point source that radiates RF energy uniformly in all...
Article Topics :

power level, power, dbm, watt, gain, isotropic, dipole, wavelengthgsm rf planning, rf planing, rf planning

Pri Selection Site or RF planning First point

Which step to make clear before select any site at any location like equipment type, construction and link balance calculation which describe detail as below. Select Equipment Type For Site...
Article Topics :

link balance, balance calculation, equipment, cell, power, frequency, coverage, antennagsm rf planning, rf optimization, site selection, uplink

Step to Select any Site in RF Planning

Here I write about selection of new site in rf planning, how step by step any new site planned is as per below. Prepare Initial Search Ring Note the latitude...
Article Topics :

rf planning, drive test, planning tool, prediction, coverage, search ringsgsm rf planning, rf optimization, Site Planning

Effect of DTX in RX Quality distribution

DTX has some effect on the RXQual distribution. Normally the BER is averaged over the duration of one SACCH frame lasting 0.48 seconds and consisting of 104 TDMA frames. However,...
Article Topics :

sub quality, quality distribution, bursts, quality, dtx, distribution, speech, networksdtx in rx quality, gsm basic, gsm rx quality, rf optimization, sacch

Effect of Power Control and DTX in GSM

Both the power control and the DTX are standard GSM features, which are designed to minimize the interfering transmission when possible. They are both mandatory features in the mobile terminals,...
Article Topics :

power control, signal strength, quality gain, power, network, interferenceDTX in GSm, gsm, gsm rf optimization, power control, power control in gsm, power control in gsm occurring, uplink

Interference Diversity effect with Hopping and Without Hopping

In a conventional non-hopping network, each call is transmitted on a single fixed frequency. This means that the interference situation in a network is also quite stable. Some calls may...
Article Topics :

frequency hopping, random frequency, hopping network, interference margin, interference, network, frequencyfrequency hooping in gsm, frequency hopping, gsm, gsm rf planning, hopping in gsm

Hopping Effect in Cell Coverage area and on Mobile Speed

Effect in Cell Coverage Area In coverage limited cells the frequency hopping may increase the cell coverage area because of the frequency diversity gain, but since the BCCH time slot...
Article Topics :

coverage area, diversity gain, frequency diversity, hopping, gain, coverage, performance, mobilesBCCH, gsm, gsm rf planning, mobile speed, power control, sdcch

How Different Frequency Diversity gains with Cyclic and Random Hopping

Cyclic vs. Random Hopping Sequences Both cyclic and random hopping modes are available in GSM. In the cyclic mode the frequencies are changed sequentially from the lowest frequency to the...
Article Topics :

hopping, frequency, diversity, random hopping, frequency diversity, diversity gain, cyclicfrequency diversity in gsm, gsm, gsm rf optimization, gsm rf planning, rho, sacch, sdcch, uplink

Effect of Interleaving and Frequency Diversity in GSM

Effect of Interleaving In GSM the speech frame is transmitted over eight consecutive bursts. The fast fading causes bursty bit errors that degrade the efficiency of the convolutional coding. The...
Article Topics :

frequency diversity gain, interleaving, consecutive bursts, moving mobiles, fading, bursts, hoppinggsm, gsm rf planning, interleaving

Losses by Duplexer, Body And Penetration

In GSM System Losses is different type here i write about Losses by Duplexer, Body And Penetration Duplexer Loss A duplexer enables simultaneous transmission and reception of signals on the...
Article Topics :

Body And Penetration, penetration losses, losses, duplexer, transmission, subscriber, propagationduplexer loss, gsm, penetration loss in gsm, uplink

Value of Cable, Connector and Combiner Loss

When talk about Practical RF Planning then its also needs to take care about losses and physical losses like Cable,Connector and Combiner at BTS is more important. Cable Loss Two...
Article Topics :

cable loss, cavity combiners, jumper cable, combiners, loss, cablecombiner loss, gsm, gsm losses

Effect of Antenna Gain and Diversity Gain in GSM RF

Gain is most important thing in wireless communication and if its passive then it will be very useful here I write about antenna gain and diversity gain definition and its...
Article Topics :

antenna gain, directional antennas, diversity antenna, diversity, antenna, gaingsm, gsm antenna gain, gsm planning, uplink

20 queries in 0.469 seconds.