Patent ID: 7346684

Claim:
A method of selecting a PDSN (Packet Data Serving Node) for a mobile station, wherein the mobile station has a communication link with a PCF (Packet Control Function), the method comprising: sending an A11 registration request message from the PCF to a control node, wherein the A11 registration request message includes an identifier of the mobile station; receiving the A11 registration request message at the control node and, in response, based on the identifier of the mobile station, selecting a PDSN that offers a static IP service for the mobile station; sending an A11 registration denial message from the control node to the PCF, wherein the registration denial message includes an address of the selected PDSN; receiving the A11 registration denial message at the PCF and, in response, establishing an R-P connection between the PCF and the selected PDSN; providing an NAI (Network Access Identifier) of the mobile station to the selected PDSN; based on the NAI, selecting a predetermined static IP address of the mobile station; and providing for the mobile station a network connection wherein the mobile station is addressed with a static IP address.