5G-XHaul aims at building up an ambitious converged optical and wireless network solution that relies on a flexible infrastructure able to support of the backhaul and fronthaul networks required to tackle the future challenges that RAN imposes. 5G-XHaul will provide an efficient, reconfigurable, modular and highly scalable platform to support RAN processing, depending on different architectural solutions, network elements and devices. The future 5G backhaul requires higher flexibility to unlock the potential of increased, more efficient and more flexible spectrum usage. The high deployment cost of optical fibre will be alleviated in 5G-XHaul with the use of mm-Wave communications for both backhaul and fronthaul purposes.