Method and System for Ensuring QoS and SLA Server

• US 20090010264A1
• Filed: 09/19/2008
• Published: 01/08/2009
• Est. Priority Date: 03/21/2006
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: ZHANG, Xiaoli
• Granted Patent: US 8,213,433 B2
• Time in Patent Office: Days
• US Class Current: 370/395.210
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/2425 for supporting services specification, e.g. SLA

Abstract

A method and system for ensuring QoS in a communication network and a SLA server. The system for ensuring QoS includes a service-specific server and a SLA server. The method for ensuring QoS includes: querying the SLA information according to a user identity, where the SLA information includes different service levels signed by the same user identity; obtaining different service levels signed by the same user identity; and providing the user with the service at a corresponding service level. Through the technical solution of the present invention, a user can subscribe to more than one service level and the SP can ensure the QoS at different service levels for the user.

Claims

1. A method for ensuring quality of service, (QoS), comprising:

querying service level agreement (SLA) information according to a user identity, wherein the SLA information includes different service levels signed by a user with the user identity;

obtaining a service level from the different service levels; and

notifying a service-specific server to provide services for the user according to the obtained service level.

2. The method of claim 1, wherein the SLA information comprises a SLA which includes different service levels.

3. The method of claim 1, wherein the SLA information comprises more than one SLA and each SLA comprises one service level.

4. The method of claim 1, further comprising:

monitoring a service level change event; and

,

performing the process of querying the SLA information when the service level change event occurs.

5. The method of claim 4, further comprising:

ensuring the QoS of the user according to the obtained service level.

6. The method of claim 5, wherein the service level change event occurring comprises:

receiving a request for changing the service level;

wherein the querying the SLA information comprises;

querying the SLA information according to a service level identity for identifying a changed service level contained in the request.

7. The method of claim 5, wherein the service level change event occurring comprises:

detecting that the preset conditions for changing the service level preset in the user'"'"'s SLA information are met;

wherein the querying the SLA information comprises;

querying the SLA information according to a service level identity for identifying a changed service level preset in the user'"'"'s SLA information.

8. The method of claim 5, further comprising:

storing the service level change information after the service level is changed.

9. The method of claim 1 wherein the notifying a service-specific server to provide services for the user according to the obtained service level comprises:

obtaining SLA parameters according to the obtained service level; and

notifying a service-specific server to provide services for the user according to the obtained SLA parameters.

10. The method of claim 1, wherein charging information corresponding to the obtained service level in the user'"'"'s SLA information is used to charge.

11. The method of claim 5, wherein the ensuring the QoS of the user according to the obtained service level comprises:

obtaining SLA parameters according to the obtained service level; and

performing SLA QoS monitoring and SLA QoS evaluation for the service according to the obtained SLA parameters.

12. A system for ensuring QoS, comprising:

a service level agreement (SLA) server, adapted to query SLA information according to a user identity obtain a service level from the SLA information, and to notify to provide services for the user according to the obtained service level;

wherein the SLA information comprises different service levels signed by a user with a user identity; and

a service-specific server, adapted to notify the SLA server upon receiving a service request from a user, receive the notification from the SLA server, and provide the user with the service at a corresponding service level.

13. The system of claim 12, further comprising a SLA database, adapted to store the relationship between the user identity and the SLA information, wherein:

the SLA server obtains the SLA information according to the user identity by searching the SLA database.

14. The system of claim 12, wherein the SLA information comprises a SLA which includes different service levels.

15. The system of claim 12, wherein the SLA information comprises more than one SLA and each SLA comprises one service level.

16. The system of claim 12, wherein the SLA server is further adapted to monitor the service level change event, and after detecting such an event, notify the service-specific server to ensure the QoS of the user according to the changed service level.

17. The system of claim 16, further comprising a service information database for storing service-related information, wherein the SLA server is further adapted to record the service level change information into the service information database after the service level is changed.

18. The system of claim 12, further comprising:

a service performance database, adapted to store information about the service performance of the current communication network collected by a collection device in the communication network; and

the SLA server comprises a SLA monitoring and evaluation module, adapted to query the service performance database about the service performance of the current communication network, monitor and evaluate the SLA QoS for the service according to the user'"'"'s service level and the found service performance information.

19. A service level agreement (SLA) server, comprising:

a user interface module, adapted to provide a uniform user-oriented interface to change the current service level or change the SLA-related parameters in SLA information by a user;

wherein the SLA information includes different service levels signed by a user with a user identity; and

a querying module, adapted to query SLA information according to the user identity from the user interface module, and obtain a service level from the SLA information.

20. The SLA server of claim 19, further comprising a service level processing module, adapted to detect a service level change event of the user, and instruct the service-specific server to provide the user with services according to the changed service level after detecting the service level change event occurs.

21. A method for ensuring quality of service (QoS), comprising:

monitoring a service level change event;

determining a service level to be changed according to service level agreement (SLA) information when detecting that the service level change event occurs;

wherein the SLA information includes different service levels signed by a user with a user identity; and

notifying a service-specific server to provide services for the user according to a changed service level.

22. The method of claim 21, wherein the service level change event occurring comprises:

receiving a request for changing the service level, or detecting that the preset conditions for changing the service level preset in the user'"'"'s SLA information are met.

23. The method of claim 22, wherein before notifying a service-specific server to provide services for the user according to a changed service level the method further comprises:

querying the SLA information according to a user identity when receiving a request for changing the service level, wherein the user identity is contained in the request;

obtaining SLA parameters corresponding to the service level to be changed; and

wherein the notifying a service-specific server to provide services for the user according to a changed service level comprises;

notifying a service-specific server to provide services for the user according to the changed service level corresponding to the obtained SLA parameters.

24. The method of claim 23, further comprises:

performing SLA QoS monitoring and SLA QoS evaluation for the service according to the obtained SLA parameters.

25. A method for ensuring quality of service (QoS), comprising:

receiving, by a service-specific server, a notification for providing services for the user according to a changed service level;

querying a service level agreement (SLA) information according to a user identity, wherein the SLA information includes different service levels signed by a user with a user identity;

obtaining SLA parameters corresponding to the changed service level; and

providing services for the user according to the obtained changed service level.