Patent ID: 8040804

Claim:
A method of flow control for an IUB-interface, comprising: acquiring a frame loss rate of a service according to the number of lost frames in a predetermined period; determining a congestion condition at the IUB-interface according to the frame loss rate wherein the congestion condition is congestion occurs or congestion disappears; and adjusting a total bandwidth allocated to the IUB-interface according to the congestion condition, wherein adjusting the total bandwidth according to the congestion condition comprises: based on the congestion condition, determining a bandwidth reservation margin; and adjusting the total bandwidth allocated to the IUB-interface according to the bandwidth reservation margin, wherein the total bandwidth is a value obtained by subtracting the bandwidth reservation margin from a maximum total bandwidth of the IUB-interface; wherein the adjusting the total bandwidth allocated to the IUB-interface according to the bandwidth reservation margin comprises: adjusting the total bandwidth allocated to the IUB-interface according to the bandwidth reservation margin through increasing the bandwidth-reservation margin L of the IUB-interface by an increment if congestion occurs at the IUB-interface, wherein the increment is a product of a total bandwidth available to high speed downlink package access (HSDPA) users G, an IUB bandwidth decreased step parameter J, and the frame loss rate; or, adjusting the total bandwidth allocated to the IUB-interface according to the bandwidth reservation margin through decreasing the bandwidth reservation margin L of the IUB-interface by a decrement if congestion disappears at the IUB-interface, wherein the decrement is an IUB bandwidth increased step parameter K.