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Re: Rx level
Dear rahul
The mathematical formula for the RX level is:
Pr=Pt+Gt-Lp+Gr
where: Pr: RX level
Pt: transmitted power
Gt: gain of transmitter antenna
Gr: gain of receiver antenna
Lp: path loss between the transmitter and receiver
Lp...
Re: Rx level
Dear rahul
The Rx level depends on many factors such as the losses and gains of both the transmitted and received antenna, also it depends on the path loss between the transmitter and receiver which is affected by many factors such as the terrian, the distance between the...
Re: Rx level
Dear rahul
Rx level means the received power by any receiver from certain transmitter, it is measured by mw or dBm.
The practical application is that it can be used for measuring the received level by mobile station from base station to check the coverage of this site
Re: gsm900 and gsm1800
Dear sorang363
the coverage area of GSM1800 is lower than GSM900 because in GSM1800 we use the band around 1800MHz while in GSM900 we use the band around 900MHz, and there is a relation between the received power at the MS and the frequency used for transmission that is...
Dear sorang363
The main difference between GSM900 and GSM 1800 is the band because each one has different band as follows:
GSM900: 890MHz---->915MHz uplink 935MHz----->960MHz downlink
GSM1800: 1710MHz---->1785MHz uplink 1805MHz------>1880MHz downlink
So, each one has differnet band noting...
Re: Fading??
Dear pmonon
let's first define the fading to answer your question, Fading means the variation of the signal strength(the signal power), which means that the signal strength can be varied, which means it can be increased or decreased,but in all books and papers you read you'll find...
Re: EDGE vs GPRS
Dear Virus King
By using the 8-PSK we can use triple the rate of GPRS,also we can't use vedio broadcasting in G2.5 in GSm network as at least we need to use EDGE for the high data rate needed in video broadcasting
Best Regards
Re: GSM VS GPRS
Dear magnetra
GPRS data is transmitted using TCH,which is just a normal physical channel dedicated for traffic,the traffic channel is booked for GPRS by two ways;either on demand or dedicated
if it is on demand that means that the TCH is free for the use of either the...
Dear fahadmunir
Channel assignment to a call means that you want to begin to talk and so you should have a free channel to speak through,and when the netwok gives you a channel,that means the network assigns a channel to you,while handoff means you are involved in a call and you are moving and...
Re: GSM question
Dear amihomo
Don't worry,but there is something i want to explain,when the caller moves within the cell, the BSC IS THE ONE THAT monitors the strength of the signal between the phone and the receiver, and if this falls below a certain level, it may transfer control of the...
Re: GSM900 - frequency “reuse pattern“
Dear Enhancer
I mean by 3/9 that we have a cluster that consists of 3 cells and each cell consists of 3 sectors and so we got 9 sectors as all in this cluster so,the frequencies we have will be distributed over these 9 sectors.some times,in...
Re: GSM Startup Steps
Dear magnetra
If this topic really helped you,please press "helped me"
unfortuntely,i have only hard copy of this process
Best Regards
Ibrahim Sayed
Dear lifegood
as 1800 MHz is higher than 900MHz,the free space loss is higer in 1800 than 900,and so the cell size is lower in 1800 than 900,so if the operator wants to compensate this loss to have the same cell size either for 900 or 1800,it'll increase the power of BTS 1800,and if it doesn't...
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