Method for distributing real time business bandwidth resource

The invention provides a real-time service bandwidth resource allocation method, which comprises the following steps: step S102, reserving a resource block for a real-time service by a base station, periodically notifying the information of reserving the resource block in the broadcast manner to a user station to reserve, and storing the information of the resource block by the user station; stepS104, allocating the resources in the reserved resource block for the real-time service by the base station according to the use condition of the reserved resource block under the condition that the user station initiates a real-time service request, and notifying the user station of the resource allocation information; and step S106, storing the resource allocation information by the user station, and executing the real-time service by using the allocated resources according to the resource allocation information. The method can reduce the cost for the real-time service bandwidth allocation based on OFDMA, and further improve the sector capacity of the system.