UNC - Unlicensed Network ControllerA Unlicensed Network Controller is found with a UMAN (Unlicensed Mobile Access Network). Its function is to connect the existing GSM and GPRS core net... View more
UNI - User to Network InterfaceThe interface between user equipment and private or public network equipment (e.g. ATM switches). ... View more
UnicodeThe Unicode Worldwide Character Standard is a character coding system designed to support the interchange, processing and display of the written texts... View more
UNIXA portable, multiuser, time-shared operating system that supports process scheduling, job control, and a programmable user interface. ... View more
Unnumbered commandThis may be used in a data transmission and represents a command that does not contain sequence numbers in the control field. ... View more
Unnumbered responseThis may be used in data transmission and represents a response that does not contain sequence numbers in the control field. ... View more
UPCON - User Plane CONgestion ManagementAs mobile networks become increasingly congested, the 3GPP have introduced techniques for RAN congestion management which are designed to reduce the i... View more
UPF - User Plane FunctionThe User Plane Function is related to the 3GPP 5G Architecture. It is similar to the roles played by the Serving/Packet Gateway in a 4G LTE system. Th... View more
Uplink DPCH - Uplink Dedicated Physical ChannelThere are two types of Uplink Dedicated Physical Channel, the uplink DPDCH (Dedicated Physical Data Channel) and the uplink DPCCH (Dedicated Physical ... View more
UPnP - Universal Plug and PlayUPnP is a generic term for a series of protocols and standards which support network devices such as computers, smartphones, printers etc. to seamless... View more
Upper LayersGeneral term relating to Layer 3 , and the layers above Layer 3 in the OSI (Open Systems Interconnection) model. ... View more
UpPTS - Uplink Pilot Time SlotIn LTE , the radio frame structure type 2 is used for TDD operation and consists of two half-frames with a duration of 5ms each and containing each 8 ... View more
UPT - Universal Personal TelecommunicationsA telecommunications service that provides personal mobility and service profile management. Users are identified by means of a UPT number. ... View more
URA - UTRAN Registration AreaThe UTRAN (UMTS Terrestrial Radio Access Network) Registration Area is an area covered by a number of cells. The URA is configured in the UTRAN and br... View more
URI - Uniform Resource IdentifierA URI is an address string which identifies the location of a particular resource eg www.mpirical.com/tutorials. ... View more
URL - Uniform Resource LocatorA standard way of specifying the location of an object, typically a web page, on the Internet. URL are the form of address used on the WWW (World Wide... View more
URLC - UMA Radio Link ControlUMA (Universal Mobile Access) Radio Link Control is a protocol found within a UNC (Unlicensed Network Controller) to support the transfer of both GPRS... View more
URLLC - Ultra Reliable Low Latency CommunicationURLLC is one of the three facets of 5G, alongside MMTC (Massive Machine Type Communication) and eMBB (enhanced Mobile Broadband). In particular, URLLC... View more