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In September 2014, Optus launched LTE Carrier Aggregation in Sydney, Melbourne, Brisbane and Adelaide. Optus markets LTE Carrier Aggregation as "4G Plus". Optus combines two 20 MHz channels of 2.3 GHz spectrum. [6] In Brisbane, Optus has up to 4CA band combinations using Band 1, 3, 7, 28 and the total bandwidth is 55 MHz.
Apart from their main spectrum holdings across large regions in the country (listed below) the major US carriers (AT&T, Sprint, T-Mobile & Verizon) also hold various Cellular Market Area (CMA) and/or Economic Area (EA) licenses for the AWS 1700 band, as well as Major Trading Area (MTA) and/or Basic Trading Area (BTA) licenses for the PCS 1900 band.
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.
4G : LTE-FDD : B1 2100 MHz 4.5G : TDD LTE : B40 2300 MHz: Launched November 2020 [188] AJ Advance Technology Pcl. 12: Redone (Host operator NT Mobile (formerly TOT Mobile)) 3G : UMTS/WCDMA : B1 2100 MHz 4G : LTE-FDD : B1 2100 MHz 4.5G : TDD LTE : B40 2300 MHz: Launched May 2021 [189] Red One Network (Thailand) Co., Ltd
3 adjacent 1,25 MHz CDMA2000 carriers [100] China Unicom: Mar 2016: 20 MHz DSS 5G NR Nov 2022 LTE Aug 2021 5 MHz, UMTS: 20 MHz May 2015 10 MHz, GSM: N/A: N/A: 10 MHz DSS 5G NR Nov 2022 LTE Nov 2022 or 5 MHz LTE Jun 2017 and 5 MHz, UMTS, GSM - - N/A: 20 MHz Mar 2014: 20 MHz Mar 2014 - Dec 2018: NB-IoT [B3,B8] (Jun 2017) 4x4 MIMO (Aug 2017) 256 ...
MCC MNC Brand Operator Status Bands (MHz) References and notes 505: 01: Telstra: Telstra Corporation Limited: Operational: LTE 700 / LTE 850 / LTE 1800 / LTE 2100 / LTE 2600 / 5G 850 / 5G 2600 / 5G 3500 / 5G 28000
Vodafone rolled out 4G 850 MHz by refarming 5 MHz of their 3G spectrum in capital cities covering 95% of Australia's metro population in 2014, [21] and enabled carrier aggregation on both their 4G bands. In April 2017, Vodafone was a successful bidder for 4G spectrum on the 700 MHz band at auction. [22]
[1] [2] LTE is the upgrade path for carriers with both GSM/UMTS networks and CDMA2000 networks. Because LTE frequencies and bands differ from country to country, only multi-band phones can use LTE in all countries where it is supported.