Method and system for providing QoS in broadband convergence network deploying mobile IP
AssigneeElectronics and Telecommunications Research Institute
InventorsHyun Soon Nam, Da Hye Choi, You Hyeon Jeong
Life of this patent
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Abstract
Provided is a method and system for providing a QoS in a broadband convergence network deploying a mobile IP. In the method, a service and policy is defined at a first network design stage for guaranteeing the QoS of the broadband convergence network. QoS parameters corresponding to the defined service and policy are reflected in a DSCP field corresponding to the defined service. The DSCP field and the QoS parameters are applied to an access router in a management network. Accordingly, the QoS can be guaranteed to be suitable for the service and policy and a seamless handover guaranteeing the QoS can be provided.
Claims12
A method of providing a QoS in a broadband convergence network deploying a mobile IP, the method comprising:
- defining a service and policy in a centralized resource manager at a first network design stage;
- reflecting QoS parameters corresponding to the defined service and policy in a DSCP (DiffServ Code Point) field corresponding to the defined service;
- applying the DSCP field and the QoS parameters to an access router in a management network;
- guaranteeing a bandwidth suitable for the QoS parameters for each session on the basis of a received DSCP field in the access router;
- and
- when a first session exceeding link capacity is entered, dropping the first session.
A method for providing a QoS in a broadband convergence network deploying a mobile IP using a mobile terminal, the method comprising:
- determining a DSCP (DiffServ Code Point) field of a target access network, when a mobile terminal in an access network connected to the broadband convergence network is handed over to the target access network;
- performing authentication of the handover in an authentication server and then transmitting the determined DSCP field to the mobile terminal simultaneously with transmission of the new IP information when the authentication server acquires new IP information for the target access network;
- marking the transmitted DSCP field in a corresponding field of a header in the mobile terminal;
- and
- generating at the mobile terminal a TX packet containing the header marked with the transmitted DSCP field for guaranteeing the QoS through the customer access network.
A method for providing a QoS in a broadband convergence network deploying a mobile IP, the method comprising:
- transmitting a service and policy suitable for corresponding 5-tuple information of IPv4 or IPv6 to a router of a target access network;
- and
- determining, at the centralized resource manager, to re-mark a DSCP (DiffServ Code Point) field marked in a header of a TX packet as a new DSCP field based on the corresponding 5-tuple information and reflecting the re-marked DSCP field to the router of the target access network.
A system for providing a QoS in a broadband convergence network deploying a mobile IP, the system comprising:
- a centralized resource manager including a service/policy manager for defining a service and policy to be applied to a number of access networks at a first network design stage and managing the defined service and policy and a DSCP (DiffServ Code Point) field corresponding to the defined service, and service/policy reflector for reflecting QoS parameters corresponding to the defined service and policy in the DSCP field and applying the reflected DSCP field to the routers of the access networks;
- and
- a router including a service/policy executor for guaranteeing a bandwidth suitable for the QoS parameters for each session on the basis of the reflected DSCP field and, when a first session exceeding link capacity is entered, dropping the first session.
A system for providing a QoS in a broadband convergence network deploying a mobile IP, the system comprising:
- a centralized resource manager for defining a service and policy to be applied to a number of access networks at a first network design stage and reflecting QoS parameters corresponding to the defined service and policy in a DSCP (DiffServ Code Point) field corresponding to the defined service to apply the reflected DSCP field to routers of the access networks;
- the routers of the access networks for guaranteeing a bandwidth suitable for the QoS parameters for each session on the basis of the applied DSCP field and, when a first session exceeding link capacity is entered, dropping the first session;
- and
- an authentication server for performing authentication of a mobile terminal to transmit new IP information to the mobile terminal when the mobile terminal is handed over from a home network to a target access network and detecting a DSCP field applied to the target access network to transmit the detected DSCP field to the mobile terminal simultaneously with the transmission of the new IP information.
Dependencies are inferred from the claim text.