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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.
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.
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Download as PDF; Printable version; In other projects ... WIND Telecom: 2600 38 Jan 2015 [32] ... [CB 2] 2600 7 Jul 2012: Jul 2012: Jun 2015: Apr 2017: Apr 2017
Country Operator Frequency (MHz) Band Duplex mode Launch date Notes Barbados KW Telecommunications 700 13 FDD TBA: 10 MHz [34]: Neptune Communications 700 14
Frequency-division multiple access (FDMA) is a channel access method used in some multiple-access protocols. FDMA allows multiple users to send data through a single communication channel, such as a coaxial cable or microwave beam, by dividing the bandwidth of the channel into separate non-overlapping frequency sub-channels and allocating each sub-channel to a separate user.
UTRA-FDD (Frequency Division Duplex) employs CDMA and FDD, where separate frequency bands are allocated for uplink and downlink transmissions. This separation minimizes interference and allows for continuous data transmission in both directions, making it suitable for environments with balanced traffic loads.
[2] Low data transfer latencies (sub-5 ms latency for small IP packets in optimal conditions), lower latencies for handover and connection setup time. Support for terminals moving at up to 350 km/h or 500 km/h depending on the frequency band. Support for both FDD and TDD duplexes as well as half-duplex FDD with the same radio access technology