Experiment on High Capacity Backhaul Transmission Link Aggregation Solution for 5G Networks

Nowadays, commercial 5G networks are starting to grow up rapidly. Requirements such as 1-lOGbps connections to endpoints, one millisecond end-to-end round trip delay- latency, 1000x bandwidth per unit area, 10-100x number of connected devices, 99.999% availability, 100% coverage, 90% reduction in network energy usage also extended compare to 4G networks. Existing microwave link bandwidths can no longer support everescalating requirements for 5G Backhaul capacity due to exponentially growing demand for mobile traffic by the arrival of the new portable gadgets. Spectrum resources of typical frequency bands (6 to 42 GHz) are proving insufficiency for providing high microwave backhaul capacity, making network backhaul capacity expansion increasingly more difficult. Face with the challenges, This paper presents an experiment on 5G Backhaul Small-Cell, includes an advanced Microwave Link Aggregation (MLA) technique to provide enough Backhaul capacities for 5G network. In this experiment, Mentum Ellipse used as a microwave planning tool for analytical simulation for proposed link aggregation, which offers 6.27 Gbps. The pilot implemented in the dense urban area delivers 6.073 Gbps in the proposed Cross Dual Band Link Aggregation (CDBLA) solution. CDBLA enables the integration of Common-Band microwave (CBM) (6 to 42 GHz) and E-Band microwave (EBM) (71 to 76 and 81 to 86 GHz) into one high capacity link to support large bandwidth and long-distance transmission.