Optus confirms tests of 5G FDD and TDD carrier aggregation

11 Mar 2021

Australia’s Optus has claimed ‘another 5G milestone’, with the cellco revealing that for the first time it has successfully combined 2100MHz spectrum with 3500MHz spectrum through the use of 5G carrier aggregation (CA) and spectrum sharing technology. In a press release Optus said it expected the technology development to bring ‘super-fast speeds and increased 5G coverage’, and it noted that it had worked with technology partners Ericsson and Samsung to complete testing at a live 5G site on non-standalone (NSA) architecture in Sydney using a Samsung S21 device. According to the mobile network operator (MNO), the combination of 5G FDD 2100MHz and 5G TDD 3500MHz allows the simultaneous use of both 5G and 4G, enabling faster data speeds and improved network performance.

Commenting, Lambo Kanagaratnam, Optus’ Managing Director Networks, said: ‘The deliberate and clever combination of our spectrum assets means that we are able to pull through the benefits of increased coverage thanks to the 2100MHz band, coupled with the improved capacity offered by the 3500MHz spectrum … This is important as increased coverage, capacity and speed will enable even more customers to enjoy the benefits of our super-fast 5G network for data hungry apps, high-resolution video-streaming, large file downloads and other data centric, cloud-based applications.’

The MNO currently claims to have more than 1,000 5G sites in operation across Sydney, Perth, Melbourne, Brisbane, Adelaide, Canberra, as well as in ‘key areas’ outside of these cities.

Australia, Ericsson, Optus, Optus Mobile, Samsung