Methods and systems for wireless number portability without WNP query

• US 8,027,319 B2
• Filed: 07/19/2006
• Issued: 09/27/2011
• Est. Priority Date: 07/19/2006
• Status: Active Grant

• Current Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Chin, Frances, Hasan, Peggy, Song, Huixian, True, Sandra L.
• Primary Examiner(s): Afshar; Kamran
• Assistant Examiner(s): SHAHEED, KHALID W
• Application Number:
  US11/458,510
• Publication Number:
  US 20080037759A1
• Time in Patent Office: 1,896 Days
• Field of Search: 379/221.13, 379/114.27, 379/213.01, 379/127.01, 455/461, 455/551, 455/417, 455/415, 455/428, 455/433, 370/338, 370/313, 370/355, 370/360
• US Class Current: 370/338
• CPC Class Codes: H04M 2207/18 wireless networks
• CPC Class Codes: H04M 3/42297 with number portability
• CPC Class Codes: H04Q 3/005 Personal communication services, e.g. provisions for portability of subscriber numbers
• CPC Class Codes: H04W 8/28 Number portability ; Network address portability

Abstract

Methods and systems are presented for implementing wireless number portability in a wireless communications network, in which an originating switching component determines whether a called number is ported or not based on profile information from a home location register without querying a number portability database.

Claims

1. A method for implementing number portability at an originating switching component of a wireless communications network, the method comprising:

an originating switching component receiving an incoming call to a called number;

the originating switching component obtaining profile information associated with the called number, the profile information including a location routing number, wherein the profile information includes the location routing number in a forward-to field, and wherein the profile information includes a call type indicating that the forward-to field includes location routing information for a ported number;

the originating switching component determining whether the called number is a ported number based on the profile information; and

the originating switching component routing the incoming call to a receipt switching component according to the location routing number of the profile information.

2. The method of claim 1, wherein the profile information is obtained from a home location register associated with the originating switching component.

3. The method of claim 1, wherein the profile information includes a ported number indicator.

4. The method of claim 3, wherein the profile information includes the ported number indicator in an immediate call forwarding field, and wherein the profile information includes a call type indicating that the immediate call forwarding field indicates whether the called number is a ported number or not.

5. The method of claim 4, wherein the profile information includes the location routing number in a forward-to field, and wherein the call type indicates that the forward-to field includes location routing information for a ported number.

6. The method of claim 1, further comprising the originating switching component updating a home location register record for a ported number to include a ported number indicator and a location routing number.

7. The method of claim 6, wherein the home location register record for the ported number includes the ported number indicator in an immediate call forwarding field and includes the location routing number in a forward-to field.

8. A switching component of a wireless communications network, the switching component comprising:

means for receiving an incoming call to a called number;

means for obtaining profile information associated with the called number, the profile information including a location routing number, wherein the profile information includes the location routing number in a forward-to field, and wherein the profile information includes a call type indicating that the forward-to field includes location routing information for a ported number; and

means for determining whether the called number is a ported number based on the location routing number of the profile information.

9. The switching component of claim 8, further comprising:

means for routing the incoming call to a receipt switching component according to the profile information.

15. The switching component of claim 8, wherein the profile information includes the location routing number in a forward-to field, and wherein the profile information includes a call type indicating that the forward-to field includes location routing information for a ported number.

16. The switching component of claim 8, wherein the profile information includes a ported number indicator.

17. The switching component of claim 16, wherein the profile information includes the ported number indicator in an immediate call forwarding field, and wherein the profile information includes a call type indicating that the immediate call forwarding field indicates whether the called number is a ported number or not.

10. A system for implementing wireless number portability in a wireless communications network, the system comprising:

an originating switching component operatively coupled with the network to receive an incoming call to a called number; and

a home location register operatively coupled with the originating switching component and storing profile information associated with the called number, the profile information including a location routing number associated with the called number, wherein the profile information includes the location routing number in a forward-to field, and wherein the profile information includes a call type indicating that the forward-to field includes location routing information for a ported number;

wherein the originating switching component is operative to obtain the profile information associated with the called number from the home location register and to determine whether the called number is a ported number based on the profile information; and

wherein the originating switching component routes the incoming call to the receipt switching component according to the location routing number.

11. The system of claim 10, wherein the home location register provides the location routing number to the originating switching component in a forward-to field of the profile information, and wherein the profile information includes a call type indicating that the forward-to field includes location routing information for a ported number.

12. The system of claim 10, wherein the profile information includes a ported number indicator.

13. The system of claim 12, wherein the home location register provides the ported number indicator to the originating switching component in an immediate call forwarding field of the profile information, and wherein the profile information includes a call type indicating that the immediate call forwarding field indicates whether the called number is a ported number or not.

14. The system of claim 10, wherein the home location register comprises a record for the ported number including a ported number indicator in an immediate call forwarding field and a location routing number in a forward-to field.

18. A method for implementing number portability at an originating switching component of a wireless communications network, the method comprising:

an originating switching component receiving an incoming call to a called number;

the originating switching component obtaining profile information associated with the called number, the profile information including a location routing number;

the originating switching component determining whether the called number is a ported number based on the profile information; and

the originating switching component routing the incoming call to a receipt switching component according to the location routing number of the profile information;

wherein the originating switching component determines whether the called number is a ported number and routes the incoming call without a number portability database query.

19. A system for implementing wireless number portability in a wireless communications network, the system comprising:

an originating switching component operatively coupled with the network to receive an incoming call to a called number; and

a home location register operatively coupled with the originating switching component and storing profile information associated with the called number, the profile information including a location routing number associated with the called number;

wherein the originating switching component is operative to obtain the profile information associated with the called number from the home location register and to determine whether the called number is a ported number based on the profile information;

wherein the originating switching component routes the incoming call to the receipt switching component according to the location routing number; and

wherein the originating switching component determines whether the called number is a ported number and routes the incoming call without a number portability database query.