System and method for supporting quality of service in vertical handovers between heterogeneous networks
AssigneeNtt Docomo, Inc.
InventorsXia Gao, Gang Wu
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Abstract
A method, system, and business model are disclosed for supporting handover between a mobile host and a corresponding node located in a heterogeneous network. Handover paths are established to accommodate a plurality of quality of service properties. Admission control is performed that considers the established handover paths and an established first reservation path. Gateways are contacted to determine a handover path to use. The determined handover path is used to support vertical handover. A second reservation path is established while maintaining the first reservation path and the handover path.
Claims18
A method for supporting handover between heterogeneous networks, comprising:
- establishing a first reservation path;
- establishing a handover path to accommodate a quality of service property;
- performing admission control that considers the established handover paths and the first reservation path;
- contacting gateways to determine a handover path to use to support quality of service (QoS) during a vertical handover;
- using the determined handover path to support the vertical handover;
- and
- establishing a second reservation path while maintaining the first reservation path and the determined handover path.
A system for supporting handover between a mobile host and a corresponding node in a heterogeneous network, comprising:
- a first reservation path to connect the mobile host and the corresponding node;
- a handover path to accommodate a quality of service property;
- an admission control application that considers the established handover paths and the first reservation path;
- a gateway to determine a handover path to use to support quality of service (QoS) during a vertical handover, wherein the determined handover path is used to support vertical handover;
- and
- a second reservation path to connect the mobile host and the corresponding node, the second reservation path being established while maintaining the first reservation path and the handover path.
Dependencies are inferred from the claim text.