How Do Cell Phones Utilize Channels, Frequencies, and Grid Systems?

[p.ella]

Hello,
I need help understanding how exactly cell phones work, like the channels, frequencies, and grid system. I researched a lot but still don't get it, could some one please dumb it down for me :$ I need help ASAP b/c I have an assignment due tmrw. Thankyou so much. Basically, just talk about carriers, channels, grid system, frequencies and stuff. any help is appreciated! (8

Homework Equations

The Attempt at a Solution

 

[DaveC426913]

The Attempt at a Solution

Tell us what you've learned so far.

 

[p.ella]

I know that the carrier divides the city into cells and a channel is a range of frequencies. Frequencies are cycles per second, but what's that got to do with it? And what's the deal with one and two way communication?

 

[MisterX]

I know that the carrier divides the city into cells and a channel is a range of frequencies. Frequencies are cycles per second, but what's that got to do with it?

You might want to look up "modulation". Communications systems using the electromagnetic spectrum near each other and at the same time may be made to use different frequencies so as to not interfere with each other. Typical mobile phone networks encode a digital signal using some range of frequencies.

And what's the deal with one and two way communication?

Today's digital phones use something called "channel access methods".