Abstract: A data source simulation platform includes: a transmitting side and a receiving side. The transmitting side includes a parameter initializing module, a parameter calculation module, and a subframe data module. The receiving side includes a system function configuration module, a downlink initial synchronization module, an error control module, a time-frequency estimation module, and a data parsing module. The parameter initializing module is configured to construct simulation parameters, configure a subframe structure, and simulate a raw data block to be transmitted from a protocol data unit packet of a media access control layer to a physical layer. The parameter calculation module is configured to calculate set simulation parameters. The subframe data module is configured to provide independent data for an air-interface monitoring device, the data being in a modular design and independently corresponding to each submodule.