Skip to content
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Mobile Mobile Device

The mobile device is termed the MS (Mobile Station) in GSM and the UE (User Equipment) in UMTS/LTE. The capabilities of the device are dependent on the manufacturer, but general features include support for a variety of radio technologies and frequencies, assisting in global roaming. Supported technologies include 3GPP technologies, as well as non-3GPP technologies such as WiFi, Bluetooth and NFC (Near Field Communication). Mobile devices are uniquely identified by their IMEI (International Mobile Equipment Identity), which is tracked by the EIR (Equipment Identity Register) in order to prevent stolen devices from accessing the network. On board the mobile will be a 3GPP SIM (Subscriber Identity Module) or USIM (Universal SIM), depending on the functionality of the device (particularly with respect to supported security algorithms). The SIM/USIM holds subscriber credentials associated with accessing services, such as the subscriber's IMSI (International Mobile Subscriber Identity) and secret key.
Decoding Telecoms Subscribe

DecodingTelecoms - Term of the week

Get your weekly dose of telecoms terminology delivered straight to your inbox! No spam - just clear-cut telecoms terms to keep you on top of your game.

YouTube Subscribe

Subscribe to our YouTube Channel

With over 200 free videos (and counting!) covering a range of technology topics our channel is the place to be. Subscribe to be the first to know when we release videos.
Free trial of Introduction to 5G

FREE Intro to 5G Sample Course

Use this no-obligation free trial to get a taste of what it’s like to be an Mpirical student. Included with the trial is an all-access pass to our learning platform.

Learn more with Mpirical

We offer a wide variety of live and on demand courses covering 2G, 3G, 4G and 5G, RAN and core-focused training, complementary technologies including Wi-Fi, security and packet transport networks.

View All

Ready to experience Mpirical for yourself?

Start a free trial and experience Mpirical's learning for yourself...