G.fast which can potentially deliver Broadband speeds of up to 1000Mbps (1Gbps) over BT’s hybrid fibre & copper lines has being given formal “consent” to the start the approval process by The International Telecommunication Union (ITU-T).
The ITU approval process is expected to complete in Q3 2014 and will pave the way for potential launch of G.fast into consumer market in 2016/17. This ties in nicely with the completion of the current Next Generation Broadband Fibre to the Cabinet (FTTC) deployment by BT.
At present BT uses FTTC technology to deliver speeds of up to 80Mbps, depending on line length. G.fast adopts a similar approach to FTTC but is designed maximise latest technologies such Vectoring. The clever thing about vectoring is that it minimises ‘cross-talk’ interference, and does not require mains power since it draws power from the customers modem/router.
Another advantage of G.fast is that is cheaper to deploy than Fibre to the Premises (FTTP), and along side greater use of radio spectrum is likely to be the next step of BT’s deployment in meeting Government targets for Next Generation Broadband access by 2020.