
The G.Fast trial is located close to the BT Adastral Park R&D centre in Ipswich and includes multi-port G.Fast equipment installed in underground distribution points. G.Fast uses time division duplex (TDD) technology and supports up to 1 Gbps bandwidth access per twisted pair within a distance of 100 metres, a tenfold speed increase compared with VDSL2 access. Vectoring technology is used to reduce cross talk on the copper pairs.
The G.Fast technology can work at distances of up to 250 metres, and Huawei said most typical drop cables in the UK are considerably shorter. The ITU is expected to release a draft of the G.Fast standard, to which Huawei has contributed, by the end of 2013.