SYSTEM FOR REGISTRATION OF COMMUNICATION DEVICES

• US 20090029700A1
• Filed: 07/27/2007
• Published: 01/29/2009
• Est. Priority Date: 07/27/2007
• Status: Active Grant

• Current Assignee: AT&T Knowledge Ventures, L.P. (AT&T, Inc.)
• Original Assignee: AT&T Knowledge Ventures, L.P. (AT&T, Inc.)
• Inventors: ZHANG, HAIBO, ZHANG, DONGGEN, WU, XIDONG
• Granted Patent: US 7,953,036 B2
• Time in Patent Office: Days
• US Class Current: 455/435.100
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 80/10 adapted for application session management, e.g. SIP [Session Initiation Protocol] connection management H04W76/00; arrangements for session management H04L67/14

Abstract

A system that incorporates teachings of the present disclosure may include, for example, a mobile Voice over IP (VoIP) communication device (MVCD) having a controller element to register with a VoIP call processing system by way of a Wireless Fidelity (WiFi) access point operating in a cluster of WiFi access points each having cell coverage area, and re-register with the VoIP call processing system by way of the WiFi access point in response to receiving a re-registration request upon expiration of a timer having a period determined from one or more behavioral attributes of the MVCD. Additional embodiments are disclosed.

Claims

1. A computer-readable storage medium, comprising computer instructions for:

detecting registration of a mobile Voice over Internet Protocol (VoIP) communication device (MVCD) by way of a Wireless Fidelity (WiFi) access point operating in a cluster of WiFi access points each having cell coverage area;

enabling a timer having a period determined from one or more behavioral attributes of the MVCD; and

submitting by way of the WiFi access point a re-registration request to the MVCD responsive to an expiration of the timer.

2. The storage medium of claim 1, comprising computer instructions for collecting the one or more behavioral attributes of the MVCD.

3. The storage medium of claim 1, comprising computer instructions for determining the behavioral attributes of the MVCD, wherein the one or more behavioral attributes comprise at least one among an average time the MVCD is operating in a portion of the cluster of WiFi access points, an average number of calls directed to the MVCD by other communication devices, and an average number of times the MVCD departs from the cluster of WiFi access points.

4. The storage medium of claim 1, comprising computer instructions for applying a weighting factor to the one or more behavioral attributes to determine the period of the timer.

5. The storage medium of claim 4, wherein the weighting factor comprises at least one among a probability that a departure of the MVCD from the WiFi access point does not result in a de-registration of the MVCD from the WiFi access point, a first weighting factor associated with resources of a call processing to register the MVCD, and a second weighting factor associated with resources of the call processing system for notifying the MVCD of an incoming call.

6. The storage medium of claim 5, wherein the weighting factor further comprises an attenuation factor.

7. The storage medium of claim 1, comprising computer instructions for processing a second registration of the MVCD responsive to the re-registration request.

8. The storage medium of claim 1, comprising computer instructions for:

detecting that the MVCD is no longer available by way of the WiFi access point; and

paging the MVCD by way of one or more other WiFi access points of the cluster.

9. The storage medium of claim 8, comprising computer instructions for selecting the one or more other WiFi access points according to a last known location of the MVCD.

10. The storage medium of claim 1, wherein the computer-readable storage medium operates in an Internet Protocol Multimedia Subsystem (IMS).

11. A mobile Voice over IP (VoIP) communication device (MVCD), comprising a controller element to:

register with a VoIP call processing system by way of a Wireless Fidelity (WiFi) access point operating in a cluster of WiFi access points each having cell coverage area; and

re-register with the VoIP call processing system by way of the WiFi access point in response to receiving a re-registration request upon expiration of a timer having a period determined from one or more behavioral attributes of the MVCD.

12. The MVCD of claim 11, wherein the re-registration request is generated by the VoIP call processing system.

13. The MVCD of claim 11, wherein the VoIP call processing system collects the one or more behavioral attributes of the MVCD.

14. The MVCD of claim 11, wherein the one or more behavioral attributes comprise at least one among an average time the MVCD is operating in a portion of the cluster of WiFi access points, an average number of calls directed to the MVCD by other communication devices, and an average number of times the MVCD departs from the cluster of WiFi access points.

15. The MVCD of claim 11, wherein the VoIP call processing system applies a weighting factor to the one or more behavioral attributes to determine the period of the timer, and wherein the weighting factor comprises at least one among a probability that a departure of the MVCD from the WiFi access point does not result in a de-registration of the MVCD from the WiFi access point, a first weighting factor associated with resources of a call processing to register the MVCD, a second weighting factor associated with resources of the call processing system for notifying the MVCD of an incoming call, and an attenuation factor.

16. A Wireless Fidelity (WiFi) access point, comprising a controller element to:

receive from a mobile Voice over IP (VoIP) communication device (MVCD) a first wireless message including a registration request directed to a VoIP call processing system;

transmit the registration request to the VoIP call processing system;

receive from the VoIP call processing system a re-registration request directed to the MVCD upon expiration of a timer having a period determined from one or more behavioral attributes of the MVCD; and

transmit to the MVCD a second wireless message with the re-registration request.

17. The WiFi access point of claim 16, wherein the call processing system collects the one or more behavioral attributes of the MVCD.

18. The WiFi access point of claim 16, wherein the one or more behavioral attributes comprise at least one among an average time the MVCD is operating in a portion of the cluster of WiFi access points, an average number of calls directed to the MVCD by other communication devices, and an average number of times the MVCD departs from the cluster of WiFi access points.

19. The WiFi access point of claim 16, wherein the call processing system applies a weighting factor to the one or more behavioral attributes to determine the period of the timer.

20. The WiFi access point of claim 19, wherein the weighting factor comprises at least one among a probability that a departure of the MVCD from the WiFi access point does not result in a de-registration of the MVCD from the WiFi access point, a first weighting factor associated with resources of a call processing to register the MVCD, a second weighting factor associated with resources of the call processing system for notifying the MVCD of an incoming call, and an attenuation factor.