1.3 Mobile Device Networks

"cell" phone

comes from the hexical cell zones created by cell tower providers

3G

est 1998, introduced GPS, mobile tele, video on demand, faster wireless cellular data transfer

4G

GSM and EDGE based, standard rate of 150 mb/s

GSM

Global System for Mobile Comms

EDGE

Enhanced Data Rates for GSM Evolution

LTE

300 mb/s

5G

10gb/s to 100-900mb/s depending on frequency

802.11

WiFi connection, most phones can use it as if it were high speed cellular

SIM

Subscriber Identity Module

SIM

Contains all the information of what your device is on a network

SIM

Has ___ ID, and phone number, cell net info, storage space for contacts and msgs

eSIM

embedded SIM, cannot physically be removed

Yes

Can some devices support multiple SIMs?

GPS

Global Positioning System

GPS

Needs at least 4 satellites to determine long lat and alt