Patent ID: 7769151

Claim:
A system for implementing prepaid data service in a mobile communication network, comprising a Radio Network (RN), a Packet Data Service Node (PDSN), a Home Authentication Authorization and Accounting (HAAA) server, a Prepaid Server (PPS)/Content Provider Gateway (CP GW), a Mobile Switching Center (MSC) and a Service Control Point (SCP), the RN being communicatively connected to both the MSC and the PDSN, the MSC being communicatively connected to the SCP, the PDSN being communicatively connected to the HAAA and the HAAA being communicatively connected to the PPS/CP GW, further comprising: a Data service Access Control Point (DACP), communicatively connected to both the PPS/CP GW and the SCP, configured to: send a fee request message to the SCP after receiving a charging request message to request fee distribution from the HAAA via the PPS/CP GW, convert, after receiving a fee request response message from the SCP containing information about distributed fee, the information about the distributed fee into information for the PDSN to control data service utilization of the subscriber, and send a charging request response message containing the information for the PDSN to control the data service utilization of the subscriber to the PDSN via the PPS/CP GW and the HAAA.