An analog mobile fronthaul based on low and high frequency hybrid network for next generation mobile system

We have proposed an analog mobile fronthaul (MFH) architecture for next generation mobile networks, which can simultaneously transmit 2.4 GHz, 28 GHz and 60 GHz RF signals with data rates at 100 Mbps, 1 Gbps and 10 Gbps, respectively. Low-frequency (LF) and high-frequency (HF) hybrid networking is achieved for supporting the conventional seamless telecommunication networks and emerging small cellular networks. The millimeter wave (MMW) signal at 60 GHz can be extracted by filtering and then transmitted to multiple further remote radio units (RRUs) to implement the future plug and play flexible networking in the hotspot areas. After analyzing the principle of our proposed MFH link theoretically in detail, the simulation is conducted to demonstrate the proposed MFH link. The simulation results show that the three RF signals can maintain good performance after transmitting over a 20 km standard single mode fiber (SSMF).