Method for Assisting a Wireless Device to Find Closed Subscriber Group Cells

• US 20090270092A1
• Filed: 04/28/2008
• Published: 10/29/2009
• Est. Priority Date: 04/28/2008
• Status: Abandoned Application

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Howell, Stephen A., Buckley, Adrian, Alfano, Nicholas P., Kim, Youngae
• Application Number:
  US12/111,048
• Publication Number:
  US 20090270092A1
• Time in Patent Office: Days
• US Class Current: 455/434
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 8/183 Processing at user equipment or user record carrier

Abstract

A method of establishing a wireless link is provided. The method comprises a user equipment (UE) receiving a transmission from a closed subscriber group (CSG) cell. When the CSG cell is associated with a CSG identified in a user defined list of CSGs stored in the UE, the method further comprises establishing a wireless link between the UE and the CSG cell.

Claims

1. A method of establishing a wireless link, comprising:

a user equipment (UE) receiving a transmission from a closed subscriber group (CSG) cell; and

when the CSG cell is associated with a CSG identified in a user defined list of CSGs stored in the UE, establishing a wireless link between the UE and the CSG cell.

2. The method of claim 1, further including:

when the CSG cell is associated with a CSG identified in an operator defined list of CSGs stored in the UE and the CSG is associated with a network that provides access to the UE, establishing a wireless link between the UE and the CSG cell.

3. The method of claim 1, further including when the CSG cell is associated with a CSG identified in an enterprise defined list of CSGs, establishing a wireless link between the UE and the CSG cell.

4. The method of claim 1, wherein the user defined list of CSGs comprises at least one entry identifying a CSG and wherein the at least one entry defines a time duration that the entry is valid.

5. The method of claim 1, further including terminating the wireless link at least by an expiration of a time duration defined for the CSG by an entry in the user defined list of CSGs.

6. The method of claim 5, further comprising a reminder indicator that promotes the UE providing a warning prior to the expiration of the time duration which the CSG is provisioned for the U E.

7. The method of claim 6, wherein the reminder indicator includes a reminder time period interval that is configurable.

8. The method of claim 5, wherein after the expiration of the time duration defined for the CSG, the entry in the user defined list identifying the CSG is one of deleted and marked void.

9. The method of claim 1, further including:

scanning a frequency band to identify CSG cells;

selecting a CSG associated with a CSG cell identified during scanning the frequency band; and

adding an entry identifying the selected CSG to the user defined CSG list.

10. The method of claim 1, wherein the user defined list of CSGs comprises a plurality of entries, each entry identifying a CSG, and wherein, when the user equipment receives transmissions from CSG cells associated with different CSGs, establishing the wireless link between the UE and the CSG cell comprises establishing the wireless link between the UE and the CSG cell associated with the highest priority CSG, wherein the priority of CSGs is indicated by their order in the user defined list of CSGs.

11. A user equipment (UE), comprising:

a memory to contain a user defined list of closed subscriber groups (CSGs);

a radio transceiver to receive a transmission from an at least one CSG cell and to establish a wireless link with a selected one of the at least one CSG cell; and

a selector component, when one of the at least one CSG cell is associated with a CSG identified in the user defined list of CSGs, to determine the selected one of the at least one CSG cells and to identify the selected one of the at least one CSG cell to the radio transceiver.

12. The UE of claim 11, wherein the memory further contains at least one of an operator defined list of CSGs and an enterprise defined list of CSGs.

13. The UE of claim 12, wherein each of a plurality of entries in the operator defined list of CSGs identifies a CSG and includes a network identifier of the CSG.

14. The UE of claim 11, wherein the memory comprises removable and non-removable memory.

15. The UE of claim 14, wherein the memory further contains an operator defined list of CSGs and an enterprise defined list of CSGs, wherein when a CSG cell is associated with a CSG identified in one of the user defined list of CSGs, the operator defined list of CSGs, and the enterprise defined list of CSGs stored in removable memory, the selector component determines the CSG cell to be the selected one of the at least one CSG cell.

16. The UE of claim 11, wherein each of a plurality of entries in the user defined list of CSGs identifies a CSG, wherein the selector component determines the selected one of the at least one CSG cells based on the order of entries identifying the CSG associated with the at least one CSG cells.

17. The UE of claim 16, further including a user interface to receive inputs and wherein the UE is able to reorder the entries in the user defined list of CSGs based on the inputs.

18. A method of provisioning a user equipment (UE), comprising:

scanning a frequency bandwidth;

identifying an at least one closed subscriber group (CSG) cell broadcasting in the frequency bandwidth;

displaying information about a CSG associated with the at least one CSG cell identified;

receiving an input selecting the CSG; and

when the CSG cell is associated with a user CSG, provisioning the CSG to a user defined CSG list stored by the UE,

wherein the user defined CSG list is used by the UE to establish wireless links with CSG cells.

19. The method of claim 18, further including when the CSG cell is associated with an operator CSG, provisioning the CSG to an operator defined CSG list stored by the UE, wherein the operator defined CSG list is used by the UE to establish wireless links with CSG cells.

20. The method of claim 19, wherein entries in the operator defined CSG list comprise information about a CSG including a CSG identifier and a network identifier.

21. The method of claim 18, further including when the CSG cell is associated with an enterprise CSG, provisioning the CSG to an enterprise defined CSG list stored by the UE, wherein the enterprise defined CSG list is used by the UE to establish wireless links with CSG cells.

22. The method of claim 21, wherein entries in the enterprise defined CSG list comprise information about a CSG including a CSG identifier and a time duration, wherein the time duration indicates a period of time during which the CSG is provisioned for the UE.

23. The method of claim 18, wherein entries in the user defined CSG list comprise information about a CSG including a CSG identifier and a time duration, wherein the time duration indicates a period of time during which the CSG is provisioned for the UE.

24. The method of claim 18, further comprising displaying information about a second CSG associated with a second at least one CSG cell identified, wherein the CSG associated with the at least one CSG cell identified and the second CSG associated with the second at least one CSG cell identified are displayed in an order specified by the user defined CSG list followed by an operator defined CSG list.