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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.
Country or Territory Operator VoLTE B1 2100 MHz B3 1800 MHz B5 850 MHz B7 2600 MHz B8 900 MHz B20 800 MHz B28 700 MHz B31 450 MHz B40 2300 MHz B41 2500 MHz CA [G 1] schemes References & Notes
The Asia-Pacific Telecommunity (APT) band plan is a type of segmentation of the 612–806 MHz band (usually referred to as the 600 MHz & 700 MHz bands) formalized by the APT in 2022–2023 and 2008-2010 respectively [1] and specially configured for the deployment of mobile broadband technologies (e.g. most notably Long Term Evolution, LTE).
83 (20 MHz TDD) 141 (2x20 MHz FDD) 46 (20 MHz TDD) 138 (2x20 MHz FDD) With 2x2 MIMO.Enhanced with 20 MHz channels in 802.16-2009 [9] WiMAX rel 2.0: 802.16m: WirelessMAN: MIMO-SOFDMA: 2x2 MIMO 110 (20 MHz TDD) 183 (2x20 MHz FDD) 4x4 MIMO 219 (20 MHz TDD) 365 (2x20 MHz FDD) 2x2 MIMO 70 (20 MHz TDD) 188 (2x20 MHz FDD) 4x4 MIMO 140 (20 MHz TDD) 376 ...
As of March 2013, 156 commercial 4G LTE networks existed, including 142 LTE-FDD networks and 14 LTE-TDD networks. [86] As of November 2013, the South Korean government planned to allow a fourth wireless carrier in 2014, which would provide LTE-TDD services, [ 77 ] and in December 2013, LTE-TDD licenses were granted to China's three mobile ...
For technical details on LTE and a list of its designated operating frequencies, bands, and roaming possibilities, see LTE frequency bands.; Bands 33 to 53 are assigned to TDD-LTE.
Country Operator Frequency (MHz) Band Duplex mode Launch date Notes Angola 800 20 FDD TBA [1]Multitel: 3500 42 TDD TBA [2] [3] [4] Cameroon Viettel (Nexttel): TBA [5] Equatorial Guinea
For example, a walkie-talkie or a DECT phone or so-called TDD 4G or 5G phones requires only a single frequency for bidirectional communication, while a cell phone in the so-called FDD mode is a full-duplex device, and generally requires two frequencies to carry the two simultaneous voice channels, one in each direction.