In future, Internet access speeds beyond 1 Gbit/s will be required, which is mainly provided by fiber connections in the fixed access network. A high-performance copper-based transmission technology can enable fiber to the building and fiber to the home installations in a cost-effective copper/fiber hybrid network. ITU has started a project for multi-gigabit copper access (MGfast), as a successor of the G.fast technology with the goal to provide symmetric services with 10 Gbit/s aggregated rate for each subscriber. Besides the use of higher bandwidth up to 424 MHz or 848 MHz, full duplex transmission with echo cancellation is another major improvement in MGfast. Line bonding and frequency bonding allow the use of the same physical layer architecture for different media types. This paper discusses network topologies for the hybrid network and technology options for copper transmission to achieve the desired rate and reach.

将来，将需要超过1 Gbit / s的Internet访问速度，这主要是由固定访问网络中的光纤连接提供的。高性能的铜基传输技术可以使光纤到建筑物和光纤到家庭安装成为一种经济高效的铜/光纤混合网络。作为G.fast技术的继任者，ITU已启动了一个多千兆铜缆接入（MGfast）项目，其目标是为每个用户提供10 Gbit / s的综合速率的对称服务。除了使用高达424 MHz或848 MHz的更高带宽外，具有回声消除功能的全双工传输也是MGfast的另一个重大改进。线绑定和频率绑定允许将相同的物理层体系结构用于不同的媒体类型。