How do cell wireless receivers identify data from different users?

5 pts.
Tags:
Cellular Network. Security
Wifi
Wireless network
For example if a 4g LTE cell tower is operating at B3 FDD which is 1800MHz, and there are 30 phones sending it data at the same time, how does it know which source the data is from? Does this have something to do with packets containing information about the sender? Another thing that is unclear to me is since the electromagnetic waves are broadcasted everywhere, what precents other uninented devices from picking them up. I guess it has something to do with encryption but i dont understand it.


Software/Hardware used:
Wireless Network, WiFi, Cellular Network.
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  • ToddN2000
    It ties to the device ID/information on the sim card. It's not much different than asking the NFL website for say sports scores. The request comes in from a specific network IP address and the results get sent back to the same address. With wireless it may be possible to get a signal not meant for your device but that takes special equipment and skills to set up properly. The average user is safe.
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  • Subhendu Sen

    Probably this is an assignment. Have you read your study materials? At least asked the same topic to your faculties? First of all you have to read your study materials to get solid knowledge & your future career.

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  • Jaideep Khanduja
    All data travels with a unique tag containing information of the source and media.
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