Regional broadcasting method, device and system and storage medium

The invention provides a regional broadcasting method, device and system and a storage medium, and relates to the technical field of communication. The method comprises the following steps: acquiring a broadcast request by a pico-base station convergence gateway, wherein the broadcast request comprises a broadcast area and broadcast content; the pico base station fusion gateway determines a pico base station existing in the broadcast area as a target pico base station according to the broadcast request; and the pico-base station fusion gateway sends the broadcast content to a terminal device corresponding to a temporary mobile subscriber identity (TMSI) currently corresponding to a target pico-base station according to a corresponding relation table of the current target pico-base station and the TMSI. According to the method provided by the invention, the limitation that the terminal equipment cannot receive the transmission information except the core network due to the existence of the temporary mobile sub