Method and apparatus for guaranteeing QoS using end-to-end CAC in internet service network
First Claim
1. A method for guaranteeing QoS using end-to-end call admission control (CAC) in an Internet service network, the method comprising the steps of:
- (a) performing a subscriber domain CAC by querying a subscriber DB to determine whether to admit a call based on available bandwidth information of a subscriber when a subscriber terminal requests resource reservation;
(b) performing a network domain CAC by querying a resource DB based on a result of the subscriber domain CAC to determine whether a resource required for service can be reserved or not; and
(c) updating reserved bandwidth information and available bandwidth information of a subscriber domain in the subscriber DB and resource use information of a network domain in the resource DB, when the resource reservation is completed through the steps (a) and (b).
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Accused Products
Abstract
Provided is a method and apparatus for guaranteeing QoS using end-to-end CAC in an Internet service network. The method includes the steps of: (a) performing a subscriber domain CAC by querying a subscriber DB to determine whether to admit a call based on available bandwidth information of a subscriber when a subscriber terminal requests resource reservation; (b) performing a network domain CAC by querying a resource DB based on a result of the subscriber domain CAC to determine whether a resource required for service can be reserved or not; and (c) updating reserved bandwidth information and available bandwidth information of a subscriber domain in the subscriber DB and resource use information of a network domain in the resource DB when the resource reservation is completed through the steps (a) and (b).
26 Citations
14 Claims
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1. A method for guaranteeing QoS using end-to-end call admission control (CAC) in an Internet service network, the method comprising the steps of:
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(a) performing a subscriber domain CAC by querying a subscriber DB to determine whether to admit a call based on available bandwidth information of a subscriber when a subscriber terminal requests resource reservation;
(b) performing a network domain CAC by querying a resource DB based on a result of the subscriber domain CAC to determine whether a resource required for service can be reserved or not; and
(c) updating reserved bandwidth information and available bandwidth information of a subscriber domain in the subscriber DB and resource use information of a network domain in the resource DB, when the resource reservation is completed through the steps (a) and (b). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for guaranteeing QoS using end-to-end CAC in an Internet service network, comprising:
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a service control function for performing subscriber domain CAC which queries a subscriber DB to determine whether to admit a call based on available bandwidth information of a subscriber when resource reservation is requested; and
a network control function for performing network domain CAC which queries a resource DB according to the call admission determination result of the service control function to determine whether a resource required for service can be reserved or not, wherein the service control function updates reserved bandwidth information and available bandwidth information of a subscriber in the subscriber DB, and the network control function updates resource use information in the resource DB when the resource reservation is completed. - View Dependent Claims (12, 13, 14)
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Specification