A bandwidth scheduling method, comprising: allocating, by a baseband unit, radio resources of N first radio frequency units connected to the baseband unit, wherein the radio resources of the N first radio frequency units are used for data transmission between the N first radio frequency units and a terminal, wherein N is an integer greater than 0; and allocating, by the baseband unit based on the radio resources, bandwidth resources used for data transmission between the baseband unit and the N first radio frequency units to the N first radio frequency units, wherein the allocating, by the baseband unit based on the radio resources, bandwidth resources used for data transmission between the baseband unit and the N first radio frequency units to the N first radio frequency units comprises: determining, by the baseband unit based on the radio resources, bandwidth demand amounts of the N first radio frequency units; and allocating, by the baseband unit, the bandwidth resource to the N first radio frequency units based on the bandwidth demand amounts of the N first radio frequency units, and, characterized in that: the allocating, by the baseband unit, the bandwidth resource to the N first radio frequency units based on the bandwidth demand amounts of the N first radio frequency units comprises: if a sum of the bandwidth demand amounts of the N first radio frequency units is greater than a total amount of bandwidth resources of the baseband unit, reducing, by the baseband unit, the radio resources of the N first radio frequency units according to a preset rule, and allocating a bandwidth resource to the N first radio frequency units based on radio resources of the N first radio frequency units obtained after the reduction. allocating, by a baseband unit, radio resources of N first radio frequency units connected to the baseband unit, wherein the radio resources of the N first radio frequency units are used for data transmission between the N first radio frequency units and a terminal, wherein N is an integer greater than 0; and allocating, by the baseband unit based on the radio resources, bandwidth resources used for data transmission between the baseband unit and the N first radio frequency units to the N first radio frequency units, wherein the allocating, by the baseband unit based on the radio resources, bandwidth resources used for data transmission between the baseband unit and the N first radio frequency units to the N first radio frequency units comprises: determining, by the baseband unit based on the radio resources, bandwidth demand amounts of the N first radio frequency units; and allocating, by the baseband unit, the bandwidth resource to the N first radio frequency units based on the bandwidth demand amounts of the N first radio frequency units, and, characterized in that: the allocating, by the baseband unit, the bandwidth resource to the N first radio frequency units based on the bandwidth demand amounts of the N first radio frequency units comprises: if a sum of the bandwidth demand amounts of the N first radio frequency units is greater than a total amount of bandwidth resources of the baseband unit, reducing, by the baseband unit, the radio resources of the N first radio frequency units according to a preset rule, and allocating a bandwidth resource to the N first radio frequency units based on radio resources of the N first radio frequency units obtained after the reduction. determining, by the baseband unit based on the radio resources, bandwidth demand amounts of the N first radio frequency units; and allocating, by the baseband unit, the bandwidth resource to the N first radio frequency units based on the bandwidth demand amounts of the N first radio frequency units, and, characterized in that: the allocating, by the baseband unit, the bandwidth resource to the N first radio frequency units based on the bandwidth demand amounts of the N first radio frequency units comprises: if a sum of the bandwidth demand amounts of the N first radio frequency units is greater than a total amount of bandwidth resources of the baseband unit, reducing, by the baseband unit, the radio resources of the N first radio frequency units according to a preset rule, and allocating a bandwidth resource to the N first radio frequency units based on radio resources of the N first radio frequency units obtained after the reduction.