Australian carrier Optus this week claimed to have attained a blistering 1.7Gbps downlink speed on a live site using carrier aggregation technologies across HSPA+, FDD LTE and TD-LTE.

The operator contracted NSN to build the site in Sydney, using commercially available equipment. The site in question made use of six frequency bands: FDD LTE: 700MHz; HSPA+: 900MHz; FDD LTE: 1800MHz; HSPA+: 2100MHz; TD-LTE: 2300MHz; and FDD LTE: 2600MHz.

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“With this world first ‘Gigasite’, we are showing the capacity of all our spectrum assets, including our recently purchased 700, 2300 and 2600 MHz bands, by combining multiple layers and technologies onto a single site. Trials such as this are vital in enabling Optus to prepare for our network of the future, and support more users and more data per user while at the same time enhancing the customer experience,” said Andrew Smith, VP of mobile engineering, Optus.