Admission control method and device in mobile communication system
First Claim
1. A method of operating an admission control device in a mobile communication system capable of providing a first communication that guarantees a service quality and a second communication that does not guarantee the service quality at a mobile station, comprising:
- sending a required service quality required by an application from the mobile station to the admission control device when the mobile station sends a service request, the mobile station configured to request one of the first communication which is a quantitatively guaranteed service and the second communication which is a relatively guaranteed service, according to a type of the application;
calculating, by the admission control device upon receiving a request for the first communication, a reference service quality as an admissible service quality, said reference service quality being a service quality when a propagation quality is lowest at the mobile station; and
admitting, by the admission control device, the service request from the mobile station if the required service quality is less than or equal to the reference service quality.
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Accused Products
Abstract
A method is disclosed that is capable of appropriately assigning radio resource even when a propagation quality changes. After receiving the required communication rate from the mobile station, the base station measures the maximum used radio resource, and multiplies the maximum used radio resource by a factor α. Next, the base station subtracts the above result from the total radio resource and obtains the maximum assignable radio resource. Then, the base station calculates an admissible communication rate based on the maximum assignable radio resources. Then, if the required communication rate is less than or equal to the admissible communication rate, the base station admits the request.
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Citations
18 Claims
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1. A method of operating an admission control device in a mobile communication system capable of providing a first communication that guarantees a service quality and a second communication that does not guarantee the service quality at a mobile station, comprising:
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sending a required service quality required by an application from the mobile station to the admission control device when the mobile station sends a service request, the mobile station configured to request one of the first communication which is a quantitatively guaranteed service and the second communication which is a relatively guaranteed service, according to a type of the application; calculating, by the admission control device upon receiving a request for the first communication, a reference service quality as an admissible service quality, said reference service quality being a service quality when a propagation quality is lowest at the mobile station; and admitting, by the admission control device, the service request from the mobile station if the required service quality is less than or equal to the reference service quality. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile communication system comprising:
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a mobile station; and an admission control device for controlling admission of a service request from the mobile station and providing a first communication that guarantees a service quality and a second communication that does not guarantee the service quality, wherein the mobile station includes a transmission unit configured to send a notification of a service quality required by an application to the admission control device when the mobile station sends a service request, the mobile station configured to request one of the first communication which is a relatively guaranteed service and the second communication which is a quantitatively guaranteed service, according to a type of the application; and the admission control device includes; a calculation unit configured to calculate, upon receiving a request for the first communication a reference service quality as an admissible service quality, said reference service quality being a service quality when a propagation quality is lowest at the mobile station; and an admission unit configured to admit the service request from the mobile station if the required service quality is less than or equal to the reference service quality.
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10. A mobile station for requesting a first communication that guarantees a service quality and a second communication that does not guarantee the service quality at the mobile station, the mobile station configured to request one of the first communication and the second communication, according to a type of an application that makes a service request from the mobile station, said mobile station comprising:
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a transmission unit configured to send a required service quality required by the application to an admission control device when requesting the first communication which is a quantitatively guaranteed service, the admission control device controlling admission of a service request from the mobile station; and a modification unit configured to change the required service quality to a reference service quality if the required service quality is less than or equal to the reference service quality, and to change the first communication to the second communication which is a relatively guaranteed service if the required service quality is higher than the reference service quality, said reference service quality being an admissible service quality when a propagation quality is lowest at the mobile station, which is calculated by an admission control device.
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11. An admission control device for controlling admission of a service request, including a required service quality, from a mobile station, including one of a first communication that guarantees a service quality and a second communication that does not guarantee the service quality, comprising:
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a calculation unit configured to calculate a reference service quality as an admissible service quality when receiving a request for the first communication which is quantitatively guaranteed service, said reference service quality being a service quality when a propagation quality is lowest at the mobile station; and an admission unit configured to admit the service request from the mobile station if the required service quality is less than or equal to the reference service quality. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A computer readable storage medium encoded with computer program instructions that when executed by a processor perform steps for operating an admission control device that controls admission of a service request from a mobile station including one of a first communication guaranteeing a service quality and a second communication not guaranteeing the service quality, comprising the steps of:
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calculating a reference service quality, as an admissible service quality when receiving a request for the first communication which is a quantitatively guaranteed service, said reference service quality being a service quality when a propagation quality is lowest at the mobile station; and determining whether to admit the service request of the mobile station based on the reference service quality.
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Specification