Method and system of network management and service provisioning for broadband wireless networks

• US 7,339,913 B2
• Filed: 08/17/2004
• Issued: 03/04/2008
• Est. Priority Date: 08/17/2004
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Chou, Joey, Ovadia, Shlomo
• Primary Examiner(s): Eng; George
• Assistant Examiner(s): Afshar; Kamran
• Application Number:
  US10/919,544
• Publication Number:
  US 20060039313A1
• Time in Patent Office: 1,295 Days
• Field of Search: 370/328, 370/338, 370/352, 370/401, 370/329, 370/229, 370235-236, 455/403, 455/422.1, 455/426.1, 455/558, 4554321-433, 455/435.1, 455/435, 455/445, 455/450, 455/452.1, 455/507, 455/514, 455/517, 709/201, 709/203, 709217-219, 709/223, 709/225, 709/238, 709/249
• US Class Current: 370/338
• CPC Class Codes: H04L 41/5054 Automatic deployment of services triggered by the service manager, e.g. service implementation by automatic configuration of network components
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/15 in relation to multipoint traffic arrangements for broadcast or multicast in data networks H04L12/18
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/803 Application aware
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 47/808 User-type aware
• CPC Class Codes: H04L 47/824 Applicable to portable or mobile terminals
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 74/00 Wireless channel access
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

A method and system for network management and service provisioning for broadband wireless networks. The method and system employ a network management system (NMS) to manage nodes corresponding to base stations (BS) and subscriber stations (SS). A service flow database is used to store data relating to pre-provisioned dynamic service flows for subscribers having service agreements with a service provider for the broadband wireless network. Management Information Bases (MIBs) are hosted by the various BSs in the network, along with the SSs. The MIBs contain tabulated data that is used to define and provision dynamic service flows. The MIBs are structured to enable management of the MIBs via Simple Network Management Protocol (SNMP) messaging and SNMP agents operating on the SNMP managed nodes for the BSs and SSs. The provisioning technique associates sets of Quality of Service (Qos) parameters with corresponding service classes, enabling a set of QoS parameters for a given dynamic service flow to be identified by the corresponding service class.

Claims

1. A method for provisioning service flows in a broadband wireless network, comprising:

identifying a subscriber station (SS) attempting to access the broadband wireless network, wherein the broadband wireless network employs an air interface defined by an IEEE (Institute of Electronic and Electrical Engineers) IEEE 802.16-based broadband wireless standard;

retrieving service flow parameters corresponding to the SS, wherein the service flow parameters include dynamic service flow information corresponding to a desired level of service, the desired level of service including;

a number of uplink/downlink (UL/DL) connections requested and data rates requested; and

creating service flows for the SS based on the service flow parameters that are retrieved, the service flows enabling the SS to access the broadband wireless network.

2. The method of claim 1, further comprising:

storing service flow parameters for respective subscribers in a service flow database hosted by a wireless service provider;

obtaining an SS identifier at a base station (BS) in response to the SS attempting to access the broadband wireless network via the BS;

retrieving the service flow parameters from the service flow database based on the SS identifier and returning the service flow parameters that are retrieved to the BS; and

storing the service flow parameters at the BS.

3. The method of claim 2, wherein the SS identifier is an SS Media Access Control (MAC) address.

4. The method of claim 2, further comprising:

enabling a subscriber to subscribe to a service offered by the wireless service provider via a service level agreement that identifies service flow attributes defining service flows to be provisioned for the subscriber when accessing the broadband wireless network;

storing the service flow attributes in the storage flow database to pre-provision the service for the subscriber.

5. The method of claim 2, further comprising:

storing service flow-related data in respective Management Information Base (MIB) data structures at the BS and the SS; and

employing (Simple Network Management Protocol) messages to access the MIB data structures.

6. The method of claim 1, wherein the service flow parameters include Quality of Service (QoS) parameters, the method further comprising:

associating respective sets of QoS parameters with a corresponding service class; and

enabling a set of QoS parameters to be applied for a provisioned service flow based on a service class specified for the service flow.

7. The method of claim 1, wherein creation of service flows is facilitated via a dynamic service addition (DSA) message exchange between the BS and the SS.

8. A method, comprising:

storing subscriber service flow provisioning information in a service flow database managed by a broadband wireless service provider, wherein the broadband wireless network employs an air interface defined by an IEEE (Institute of Electronic and Electrical Engineers) IEEE 802.16-based broadband wireless standard;

storing a sub-set of the subscriber service flow provisioning information in a Management Information Base (MIB) at a base station (BS) operated by the broadband wireless service provider; and

sending subscriber service flow provisioning information between the service flow database and the BS using SNMP (Simple Network Management Protocol) messages, wherein the service flow parameters include dynamic service flow information corresponding to a desired level of service, the desired level of service including;

a number of uplink/downlink (UL/DL) connections requested and data rates requested.

9. The method of claim 8, further comprising:

storing a sub-set of the subscriber service flow provisioning information in a MIB at a subscriber station (SS) operated by a subscriber of the broadband wireless service provider; and

sending subscriber service flow provisioning information between the service flow database and the SS using SNMP (Simple Network Management Protocol) messages, wherein the BS is used as an SNMP proxy.

10. The method of claim 9, wherein the MIBs at the BS and SS include:

a group of BS objects corresponding to respective tables stored at a BS;

a group of SS objects corresponding to respective tables stored at an SS; and

a group of common objects corresponding to respective tables stored at a BS or SS.

11. The method of claim 9, further comprising:

employing SNMP agents at the BS and SS to manage the MIBs at the BS and SS.

12. The method of claim 8, wherein the MIB at the base station includes a service class table that associates sets of Quality of Service (Qos) parameters with corresponding service classes to enable a set of QoS parameters to be applied for a provisioned service flow based on a service class specified for the service flow.

13. A machine-readable medium encoded with computer-executable instructions executed at a base station (BS) of a broadband wireless network perform operations comprising:

identifying a subscriber station (SS) attempting to access the broadband wireless network via the base station (BS), wherein the broadband wireless network employs an air interface defined by an IEEE (Institute of Electronic and Electrical Engineers) IEEE 802.16-based broadband wireless standard;

sending a request to a service flow database to obtain pre-provisioned service flow parameters corresponding to the SS; and

creating service flows for the SS to enable the SS to access the broadband wireless network based on the service flow parameters that are retrieved, wherein the service flow parameters include dynamic service flow information corresponding to a desired level of service, the desired level of service including;

a number of uplink/downlink (UL/DL) connections requested and data rates requested.

14. The machine readable medium of claim 13, wherein execution of the instructions performs further operations including:

storing the service flow parameters for the SS in a Management Information Base (MIB) hosted by the BS.

15. The machine readable medium of claim 13, wherein execution of the instructions performs further operations including:

enabling the MIB to be managed using SNMP (Simple Network Management Protocol) messages, wherein a portion of the instructions comprise an SNMP agent.

16. The machine readable medium of claim 13, wherein execution of the instructions performs further operations including:

enabling the BS to function as an SNMP proxy to facilitate communication between a network management system linked in communication with the BS and the SS.

17. The machine readable medium of claim 13, further to provide a data structure corresponding to the MIB.

18. An apparatus, comprising:

a processor;

a broadband wireless network interface including a plurality of broadband wireless network components compliant with an IEEE (Institute of Electronic and Electrical Engineers) 802.16-based broadband wireless standard, operatively coupled to the processor, the broadband wireless components to facilitate communications over an IEEE P802.16-based broadband wireless network;

second network interface, operatively coupled to the processor; and

at least one storage device, operatively coupled to the processor and having instructions stored therein, which when executed by the processor perform operations including;

authenticating a subscriber station (SS) attempting to access the broadband wireless network via the BS, the authentication including obtaining a SS identifier;

sending a request to a service flow database over the second network interface to obtain pre-provisioned service flow parameters corresponding to the SS, wherein the service flow parameters include dynamic service flow information corresponding to a desired level of service, the desired level of service including;

a number of uplink/downlink (UL/DL) connections requested and data rates requested; and

creating service flows for the SS to enable the SS to access the broadband wireless network based on the service flow parameters that are retrieved.

19. The apparatus of claim 18, comprising further instructions, stored in said at least one storage device, to perform operations comprising:

storing the service flow parameters for the SS in a Management Information Base (MIB) hosted by or accessible to the apparatus.

20. The apparatus of claim 18, comprising further instructions, stored in said at least one storage device, to perform operations comprising:

enabling the MIB to be managed using SNMP (Simple Network Management Protocol) messages.

21. The apparatus of claim 18, wherein the apparatus comprises an expansion card for a computer system.

22. The apparatus of claim 18, wherein the apparatus comprises a module configured to be installed in a computing device.

23. A system, comprising:

a network management system, to manage flow provisioning in a broadband wireless network, wherein the broadband wireless network employs an air interface defined by an IEEE (Institute of Electronic and Electrical Engineers) IEEE 802.16-based broadband wireless standard;

a service flow database, linked in communication with the network management system;

a plurality of base stations (BS), each linked in Communication with the network management system and the service flow database, a base station having software accessible thereto, which when executed performs operations including;

identifying a subscriber station (SS) attempting to access the broadband wireless network via the BS;

sending a request to obtain pre-provisioned service flow parameters corresponding to the SS, wherein the service flow parameters include dynamic service flow information corresponding to a desired level of service, the desired level of service including;

a number of uplink/downlink (UL/DL) connections requested and data rates requested; and

creating service flows for the SS to enable the SS to access the broadband wireless network based on the service flow parameters that are retrieved.

24. The system of claim 23, further comprising:

a Management Information Base (MIB), hosted by a base station, the MIB to store service flow parameters corresponding to a plurality of subscriber stations,

wherein execution of the software instructions enables subscriber service flow provisioning information to be sent between the BS and the service flow database using SNMP (Simple Network Management Protocol) messages.

25. The system of claim 23, wherein execution of the software instructions at the BS further enables the BS to operate as an SNMP proxy via which SNMP messages are relayed from the network management system to a subscriber station linked in communication with the BS.

26. The system of claim 23, wherein the MIB includes a provisioned service flow table and a service class table that enable, combined with execution of the software instructions at the BS, Quality of Service (QoS) parameters for a given service flow to be specified via a service class.