System and method for providing mobility across access technologies in a network environment
First Claim
1. A method, comprising:
- receiving a packet for a flow associated with a subscriber;
determining if a context exists for the flow by using a handover query to a packet gateway, wherein authentication and security parameters are negotiated before determining whether the context exist for the flow;
assigning an Internet protocol (IP) address for the subscriber, by the packet gateway, in response to a home agent element not having the context for the flow; and
creating, by the packet gateway, a session for the subscriber, wherein the session is created using inter-process communication between the home agent element and the packet gateway, and wherein the session is maintained for a handover involving the subscriber roaming between a Long Term Evolution (LTE) network and a code division multiple access (CDMA) network, wherein the handover is indicated in a context transfer, and wherein the IP address is marked as being originated at the home agent element.
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Accused Products
Abstract
An example method includes receiving a packet for a flow associated with a subscriber; determining if a home agent element has a context for the flow by communicating a handover query to a network element; assigning an Internet protocol (IP) address for the subscriber in response to the home agent element not having the context for the flow; and creating a session for the subscriber, where the session is created using inter-process communication between the home agent element and the network element. The method can further include maintaining communications with a packet data serving node (PDSN) and an Authentication, Authorization, and Accounting (AAA) element in order to assist in roaming between a Long Term Evolution (LTE) network and a code division multiple access (CDMA) network. The inter-process communication is used to maintain the session for the subscriber when the subscriber is attached to different networks.
70 Citations
20 Claims
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1. A method, comprising:
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receiving a packet for a flow associated with a subscriber; determining if a context exists for the flow by using a handover query to a packet gateway, wherein authentication and security parameters are negotiated before determining whether the context exist for the flow; assigning an Internet protocol (IP) address for the subscriber, by the packet gateway, in response to a home agent element not having the context for the flow; and creating, by the packet gateway, a session for the subscriber, wherein the session is created using inter-process communication between the home agent element and the packet gateway, and wherein the session is maintained for a handover involving the subscriber roaming between a Long Term Evolution (LTE) network and a code division multiple access (CDMA) network, wherein the handover is indicated in a context transfer, and wherein the IP address is marked as being originated at the home agent element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Computer program product stored in one or more non-transitory media, that includes code executed by a processor to perform operations comprising:
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receiving a packet for a flow associated with a subscriber; determining if a context exists for the flow by using a handover query to a packet gateway, wherein authentication and security parameters are negotiated before determining whether the context exist for the flow; assigning an Internet protocol (IP) address for the subscriber, by the packet gateway, in response to the home agent element not having the context for the flow; and creating, by the packet gateway, a session for the subscriber, wherein the session is created using inter-process communication between the home agent element and the packet gateway, and wherein the session is maintained for a handover involving the subscriber roaming between a Long Term Evolution (LTE) network and a code division multiple access (CDMA) network, wherein the handover is indicated in a context transfer, and wherein the IP address is marked as being originated at the home agent element. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus, comprising:
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a memory configured to store data, a hardware processor operable to execute instructions associated with the data, and a home agent module configured to interface with the hardware processor in order to; receive a packet for a flow associated with a subscriber; determine if a context exists for the flow by using a handover query to a packet gateway, wherein authentication and security parameters are negotiated before determining whether the context exist for the flow; the packet gateway configured to; assign an Internet protocol (IP) address for the subscriber in response to the context not being present in the home agent module for the flow; and create a session for the subscriber, wherein the session is created using inter-process communication between the home agent module and the packet gateway; and wherein the session is maintained for a handover involving the subscriber roaming between a Long Term Evolution (LTE) network and a code division multiple access (CDMA) network, wherein the handover is indicated in a context transfer, and wherein the IP address is marked as being originated at the home agent module. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification