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  2. Fiber Distributed Data Interface - Wikipedia

    en.wikipedia.org/wiki/Fiber_distributed_data...

    FDDI provides a 100 Mbit/s optical standard for data transmission in local area network that can extend in length up to 200 kilometers (120 mi). [2] Although FDDI logical topology is a ring-based token network, it did not use the IEEE 802.5 Token Ring protocol as its basis; instead, its protocol was derived from the IEEE 802.4 token bus timed token protocol.

  3. LTE frequency bands - Wikipedia

    en.wikipedia.org/wiki/LTE_frequency_bands

    Networks on LTE bands 1, 3 (LTE-FDD) are suitable for roaming in ITU Regions 1, 3 and partially Region 2 (e.g. Costa Rica, Venezuela, Brazil and some Caribbean countries or territories. Networks on LTE band 20 (LTE-FDD) are suitable for roaming in ITU Region 1 only. Networks on LTE band 5 (LTE-FDD) are suitable for roaming in ITU Regions 2 and 3.

  4. FDD - Wikipedia

    en.wikipedia.org/wiki/FDD

    Familial Danish dementia, a rare form of dementia; Floppy disk drive; Frequency-division duplex, a telecommunications duplex indexing method; Frequency domain decomposition, a system identification technique; LTE-FDD, a 4G telecommunications technology and standard; Timex FDD, a nearly complete computer by Timex

  5. List of computing and IT abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_computing_and_IT...

    2NF—second normal form; 3GL—third-generation programming language; 3GPP—3rd Generation Partnership Project – 3G comms; 3GPP2—3rd Generation Partnership Project 2; 3NF—third normal form; 386—Intel 80386 processor; 486—Intel 80486 processor; 4B5BLF—4-bit 5-bit local fiber; 4GL—fourth-generation programming language; 4NF ...

  6. List of telecommunications terminology - Wikipedia

    en.wikipedia.org/wiki/List_of_telecommunications...

    This is a List of telecommunications terminology and acronyms which relate to telecommunications. ... additional terms may apply. By using this site, ...

  7. LTE (telecommunication) - Wikipedia

    en.wikipedia.org/wiki/LTE_(telecommunication)

    In telecommunications, long-term evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals based on the GSM/EDGE and UMTS/HSPA standards. It improves on those standards' capacity and speed by using a different radio interface and core network improvements.

  8. E-UTRA - Wikipedia

    en.wikipedia.org/wiki/E-UTRA

    Support for both FDD and TDD duplexes as well as half-duplex FDD with the same radio access technology; Support for all frequency bands currently used by IMT systems by ITU-R. Flexible bandwidth: 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz and 20 MHz are standardized. By comparison, UMTS uses fixed size 5 MHz chunks of spectrum.

  9. Duplex (telecommunications) - Wikipedia

    en.wikipedia.org/wiki/Duplex_(telecommunications)

    A duplex communication system is a point-to-point system composed of two or more connected parties or devices that can communicate with one another in both directions. Duplex systems are employed in many communications networks, either to allow for simultaneous communication in both directions between two connected parties or to provide a reverse path for the monitoring and remote adjustment ...