System and method to allow simple IP mobile nodes to operate seamlessly in a mobile IP network with true roaming capabilities
First Claim
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1. A method of transmitting information between a mobile node and a home agent of the mobile node, the mobile node having an associated home AAA server, the method comprising:
- determining the address of the HAAA;
contacting the HAAA and, responsively, receiving information indicating a methodology of determining the address of the home agent of the mobile node;
determining the address of the home agent using information received from the HAAA and the PDSN; and
routing the information from the mobile node to the home agent having the address.
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Abstract
A system and method of transmitting information between a mobile node and a home agent of the mobile node. The mobile node has an associated home AAA server. The address of the HAAA is determined. The HAAA is contacted and, responsively, receives information indicating a methodology of determining the home address of the mobile node. A proxy server determines the address of the home agent using information received from the PDSN. The information is routed from the mobile node to the home agent having the address.
33 Citations
20 Claims
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1. A method of transmitting information between a mobile node and a home agent of the mobile node, the mobile node having an associated home AAA server, the method comprising:
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determining the address of the HAAA;
contacting the HAAA and, responsively, receiving information indicating a methodology of determining the address of the home agent of the mobile node;
determining the address of the home agent using information received from the HAAA and the PDSN; and
routing the information from the mobile node to the home agent having the address. - View Dependent Claims (2, 3, 4)
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5. A system comprising:
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a mobile node;
a wireless network coupled to the mobile node;
a PDSN coupled to the wireless network;
a proxy server coupled to the PDSN, the proxy server including a table, the table including information indicating the home address of the mobile node;
a HAAA coupled to the proxy server;
a home agent coupled to the PDSN;
wherein the mobile node sends a access-request message to the wireless network, and the wireless network sends the access-request message to the PDSN;
wherein the PDSN forwards the access-request to the proxy server;
wherein the proxy server determines the address of the HAAA;
wherein the HAAA receives the access-request message and, responsively, sends information representative of an IP address assignment to the proxy server, and the proxy server determines the address of the home agent using the information and the table; and
wherein a data message is thereafter routed to the home agent having the address. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A system for transmitting information between a mobile node and a home agent of the mobile node, the mobile node having an associated home AAA server, the system comprising:
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means for determining the address of the HAAA;
means for contacting the HAAA and, responsively, receiving information indicating a methodology of determining the address of the home agent of the mobile node;
means for determining the address of the home agent using information received from the PDSN; and
means for routing the information from the mobile node to the home agent having the address.
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12. A computer readable medium having stored therein instructions for causing a processing unit to execute the following method:
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determining the address of the HAAA;
contacting the HAAA and, responsively, receiving information indicating a methodology of determining the address of the home agent of the mobile node;
determining the address of the home agent using information received from the PDSN; and
routing the information from the mobile node to the home agent having the address.
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13. A computer program for transmitting information between a mobile node and a home agent of the mobile node, the mobile node having an associated home AAA server, comprising:
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first code for determining the address of the HAAA;
second code for contacting the HAAA and, responsively, receiving information indicating a methodology of determining the address of the home agent of the mobile node;
third code for determining the address of the home agent using information received from the PDSN; and
fourth code for routing the information from the mobile node to the home agent having the address.
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14. A method for tunneling data to a home agent of a mobile node from the mobile node, the home agent having an HAAA server, the mobile node coupled to a first network, the method comprising:
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requesting a look-up methodology from the HAAA server of the home agent;
responsively, receiving a look-up methodology from the HAAA server;
determining the address of the home agent using a mapping table and the look-up methodology, the mapping table including a plurality of home agent addresses; and
tunneling data to the home agent using the address of the home agent. - View Dependent Claims (15, 16)
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17. A computer readable medium having stored therein instructions for causing a processing unit to execute the following method:
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requesting a look-up methodology from the HAAA server of the home agent;
responsively, receiving a look-up methodology from the HAAA server;
determining the address of the home agent using a mapping table and the look-up methodology, the mapping table including a plurality of home agent addresses; and
tunneling data to the home agent using the address of the home agent.
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18. A computer program for tunneling data between a mobile node and a home agent, comprising:
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first code for requesting a look-up methodology from the HAAA server of the home agent;
second code for responsively, receiving a look-up methodology from the HAAA server;
third code for determining the address of the home agent using a mapping table and the look-up methodology, the mapping table including a plurality of home agent addresses; and
fourth code for tunneling data to the home agent using the address of the home agent.
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19. A system for tunneling data to a home agent of a mobile node from the mobile node, the home agent having an HAAA server, the mobile node coupled to a first network, the system comprising:
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means for requesting a look-up methodology from the HAAA server of the home address of the mobile node;
means for, responsively, receiving a look-up methodology from the HAAA server;
means for determining the address of the home agent using a mapping table and the look-up methodology, the mapping table including a plurality of home agent addresses; and
means for tunneling data to the home agent using the address of the home agent.
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20. A system for reclaiming and releasing session resources on a PDSN, proxy server and home agent during packet data serving area traversal, the system comprising:
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means for requesting a reclamation of resources on the PDSN by the proxy server, upon detection of traversal of the mobile node from a first coverage area to a second coverage area;
means for, responsively, receiving a resource management from the PDSN;
means for acknowledging the resource management request with a resource-free-response by the proxy server to the PDSN;
means for releasing resources allocated to a PDSN session from the home agent, by the PDSN; and
means for responding to the de-RRQ messaging triggered by resource management, with a de-RRP message.
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Specification