我們經常會看到聽到一些流行詞彙，也許並不清楚其全名是什麼。
GSM(Global system for mobile)，2G
UMTS(Universal mobile telecommunication system)，3G
LTE(Long term evolution)，4G
5G NR(5G New Radio)，5G新空口
eCall(Emergency call)，2G至5G
C-V2X(Cellular vehicle-to-everything communications)
V2X(Vehicle-to-everything communications)
WLAN(Wireless local area network)，Wi-Fi
NFC(Near field communications)
RFID(Radio frequency identification)
GNSS(Global navigation satellite systems)全球導航衛星系統
美國的叫GPS，歐洲的叫Galileo，中國的叫BeiDou，俄羅斯的叫GLONASS
DVB(Digital video broadcasting)
ISDB-T(Integrated services digital broadcasting terrestrial)
ADAS(Advanced driver assistance systems)