Last year, Telstra introduced LTE-A Carrier Aggregation, which uses two blocks of channels on the 900MHz and 1800MHz spectrum bands, respectively.
Working again with network partner Ericsson, the telco installed equipment for two new 20MHz channels on the 2600MHz band. Telstra then aggregated the two channels with the live 20MHz channel on its existing 1800MHz 4G network.
A Category 9 device was used to combine the three different channels, through which simultaneous streams of data could travel.
According to Telstra, the trial managed to achieve speeds of 450Mbps, tripling current peak speeds on Telstra's network.
The 4G future
Mike Wright, Group Managing Director Telstra Network, has said that the tests were conducted to learn how the technology works and what it is capable of before investing in a roll out across the country.
"Conducting this type of test is a significant step in the network engineering and development process," Wright said.
"It is essential for us to see how this type of technology works in the live network and understand what needs to be done to continue to absorb the exploding demand in mobile broadband and offer an exceptional customer experience."