Questions tagged [3g]

3G - 3rd Generation Wireless Cellular System - includes UMTS, cdma2000 and TD-SCDMA systems

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What is terminal adapter?

What exactly is an terminal adapter (TA) in an mobile station? Why a terminal equipment (TE) and an mobile termination (MT) can't communicate directly via AT protocol? Why it needs this separate ...
worner's user avatar
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Why mobile communication protocols have *G umbrella names?

Why mobile communication protocols have *G umbrella names, like 1G, 2G, 3G, 4G and 5G? Who order them? And most inportantly, have them any technically defitions? I mean, actually protocols are GSM, ...
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How & When does User equipment gets to know what is the SFN(system frame number) during Handover process?

Take an example: UE camps to an LTE network let's say LTE B66. Network sends RRC reconfiguration to measure the neighbor cells. UE scans & sends measurement report reporting neighbor cells. Now ...
Anton's user avatar
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What's the role of the AF entity in LTE network?

An AF entity is necessary, for example, to create a dedicated bearer, but I don't understand what it really does, and why is it necessary for this creation?
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Cell information in GSM, UMTS, LTE

I'm trying to understand how a Mobile Station get the information about the cell from the BTS or the NodeB. The information I am looking for is : Mobile Country Code (MCC) Mobile Network Code (MNC) ...
Walidebisi's user avatar