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  2. List of UMTS networks - Wikipedia

    en.wikipedia.org/wiki/List_of_UMTS_networks

    The following is a list of mobile telecommunications networks using third-generation Universal Mobile Telecommunications System (UMTS) technology. This list does not aim to cover all networks, but instead focuses on networks deployed on frequencies other than 2100 MHz which is commonly deployed around the globe and on Multiband deployments.

  3. UMTS Terrestrial Radio Access Network - Wikipedia

    en.wikipedia.org/wiki/UMTS_Terrestrial_Radio...

    UMTS Terrestrial Radio Access Network (UTRAN) is a collective term for the network and equipment that connects mobile handsets to the public telephone network or the Internet. It contains the base stations, which are called Node B 's and Radio Network Controllers (RNCs) [ 1 ] which make up the Universal Mobile Telecommunications System (UMTS ...

  4. UMTS - Wikipedia

    en.wikipedia.org/wiki/UMTS

    In 2002, NTT DoCoMo's FOMA 3G network was the first commercial UMTS network – using a pre-release specification, [39] it was initially incompatible with the UMTS standard at the radio level but used standard USIM cards, meaning USIM card based roaming was possible (transferring the USIM card into a UMTS or GSM phone when travelling). Both NTT ...

  5. High Speed Packet Access - Wikipedia

    en.wikipedia.org/wiki/High_Speed_Packet_Access

    High Speed Downlink Packet Access (HSDPA) is an enhanced 3G (third-generation) mobile communications protocol in the High-Speed Packet Access (HSPA) family. HSDPA is also known as 3.5G and 3G+. It allows networks based on the Universal Mobile Telecommunications System (UMTS) to have higher data speeds and

  6. E-UTRA - Wikipedia

    en.wikipedia.org/wiki/E-UTRA

    It is an acronym for Evolved UMTS Terrestrial Radio Access, [1] also known as the Evolved Universal Terrestrial Radio Access in early drafts of the 3GPP LTE specification. [1] E-UTRAN is the combination of E-UTRA, user equipment (UE), and a Node B (E-UTRAN Node B or Evolved Node B, eNodeB ).

  7. System Architecture Evolution - Wikipedia

    en.wikipedia.org/wiki/System_Architecture_Evolution

    System Architecture Evolution (SAE) is the core network architecture of mobile communications protocol group 3GPP's LTE wireless communication standard.. SAE is the evolution of the GPRS Core Network, but with a simplified architecture; an all-IP Network (AIPN); support for higher throughput and lower latency radio access networks (RANs); and support for, and mobility between, multiple ...

  8. UMTS channels - Wikipedia

    en.wikipedia.org/wiki/UMTS_channels

    The UMTS channels are communication channels used by third generation (3G) wireless Universal Mobile Telecommunications System (UMTS) networks. [ 1 ] [ 2 ] [ 3 ] UMTS channels can be divided into three levels:

  9. Non-access stratum - Wikipedia

    en.wikipedia.org/wiki/Non-Access_Stratum

    Non-access stratum (NAS) is a functional layer in the NR, LTE, UMTS and GSM wireless telecom protocol stacks between the core network and user equipment. [1] This layer is used to manage the establishment of communication sessions and for maintaining continuous communications with the user equipment as it moves.