초록 ▼

A system and methods are shown for selecting a packet data serving node (PDSN) for a mobile node in an Internet Protocol network. A network node receives a message associated with a mobile node. The message includes a service request parameter corresponding to a requested service. The network node

A system and methods are shown for selecting a packet data serving node (PDSN) for a mobile node in an Internet Protocol network. A network node receives a message associated with a mobile node. The message includes a service request parameter corresponding to a requested service. The network node uses the service request parameter to select the address of a packet data serving node (PDSN) offering the service. The network node then sends a response message directing a connection with the selected PDSN. The service request parameter may be an international mobile subscriber identifier (IMSI) that identifies a subscriber requesting a static IP address, in which case the network node directs a connection with a PDSN that offers an. Internet connection with the static IP address.

대표청구항 ▼

What is claimed: 1. 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

What is claimed: 1. 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. 2. A method according to claim 1, wherein the registration denial message includes registration denial code 136. 3. A method according to claim 1, wherein the control node is a foreign agent control node. 4. A method of providing a static IP address for a mobile station having an IMSI (International Mobile Subscriber Identifier) and an NAI (Network Access Identifier), wherein the mobile station has a first communication link with a PCF (Packet Control Function), the method comprising: based on the IMSI of the mobile station, selecting a PDSN (Packet Data Serving Node) that offers a static IP service for the mobile station; after selecting the PDSN, establishing a second communication link between the mobile station and the selected PDSN, wherein establishing the second communication link includes providing the NAI of the mobile station to the PDSN; based on the NAI of the mobile station, identifying 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 the predetermined static IP address. 5. A method according to claim 4, wherein establishing the second communications link includes establishing an R-P connection between the PCF and the selected PDSN. 6. A method according to claim 5, wherein establishing the second communication link includes establishing a PPP session between the mobile station and the PDSN. 7. A method according to claim 4, wherein establishing the second communication link includes establishing a PPP session between the mobile station and the PDSN. 8. A method according to claim 4, wherein the step of selecting a PDSN is performed by a foreign agent control node. 9. A method according to claim 4, further comprising, in response to the selection of a PDSN that offers a static IP service for the mobile station, sending a registration denial message to the radio node, wherein the registration denial message includes an address of the selected PDSN.