Expansion unit of expanded pico-base station based on 5G VORR network

The invention provides an expansion unit of an expansion type pico-base station based on a 5G VORR network, which is characterized by comprising a high-speed interface module, a data unit processing module, a control management module, an optical port + power supply module and a clock recovery module, the high-speed interface module is connected with the data unit processing module, the data unit processing module is connected with the plurality of optical port + power supply modules, the optical port + power supply modules are used for being connected with a far-end unit, and the control management module and the clock recovery module are arranged in an expansion unit and are connected with and cooperatively control the other modules. According to the invention, under the VORR, the terminal resides in the NR, and the voice service and the data service are borne in the 5G network, so that the problem that the bandwidth of the data service is limited due to the EPSFallback scheme is solved; on the basis, the e