CELL SELECTION AND RESELECTION IN DEPLOYMENTS WITH HOME NODEBS

• US 20150156711A1
• Filed: 02/09/2015
• Published: 06/04/2015
• Est. Priority Date: 03/21/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: DESHPANDE, Manoj M., CHEN, Jen Mei, PICA, Francesco, NANDA, Sanjiv
• Granted Patent: US 9,414,229 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04J 11/0069 Cell search, i.e. determining cell identity [cell-ID] design of multiplexing codes H04J13/00; processing access restriction or access information H04W48/16; discovery of network devices for network data management H04W8/005; sounding signals for channel estimation H04L25/0226; structure of reference signals in multicarrier modulation systems H04L27/2613; frame, time or carrier synchronisation in multicarrier modulation systems H04L27/2655
• CPC Class Codes: H04J 11/0093 Neighbour cell search
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 12/73 Access point logical identity
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

Systems and methodologies are described that facilitate cell search, selection, and reselection within a wireless communication network that includes a home node base station (home nodeB). A user equipment (UE) can detect a home nodeB and communicate such identification to a macro network that includes at least one node base station (nodeB). The detected home nodeB and nodeB can be hierarchically structured in order to prioritize connectivity with the home nodeB over the nodeB. Such prioritization can be implemented by broadcasting home nodeB parameters and macro nodeB parameters having identification information therewith.

Claims

1. A method, comprising:

accessing a femtocell;

storing information related to the femtocell on a user equipment (UE);

assigning a priority to the femtocell; and

searching for the femtocell using the information stored on the UE and the priority assigned to the femtocell.

2. The method of claim 1, wherein the information related to the femtocell comprises a scrambling code or physical cell identifier.

3. The method of claim 1, wherein the information related to the femtocell comprises a public land mobile network identifier.

4. The method of claim 1, wherein the information related to the femtocell comprises a location area code.

5. The method of claim 1, wherein the information related to the femtocell comprises a fingerprint.

6. A wireless communications apparatus, comprising:

at least one processor configured to;

access a femtocell;

store information related to the femtocell on a user equipment (UE);

assign a priority to the femtocell; and

search for the femtocell using the information stored on the UE and the priority assigned to the femtocell.

7. The wireless communications apparatus of claim 6, wherein the information related to the femtocell comprises a scrambling code or physical cell identifier.

8. The wireless communications apparatus of claim 6, wherein the information related to the femtocell comprises a public land mobile network identifier.

9. The wireless communications apparatus of claim 6, wherein the information related to the femtocell comprises a location area code.

10. The wireless communications apparatus of claim 6, wherein the information related to the femtocell comprises a fingerprint.

11. A wireless communications apparatus, comprising:

means for accessing a femtocell;

means for storing information related to the femtocell on a user equipment (UE);

means for assigning a priority to the femtocell; and

means for searching for the femtocell using the information stored on the UE and the priority assigned to the femtocell.

12. The wireless communications apparatus of claim 11, wherein the information related to the femtocell comprises a scrambling code or physical cell identifier.

13. The wireless communications apparatus of claim 11, wherein the information related to the femtocell comprises a public land mobile network identifier.

14. The wireless communications apparatus of claim 11, wherein the information related to the femtocell comprises a location area code.

15. The wireless communications apparatus of claim 11, wherein the information related to the femtocell comprises a fingerprint.

16. A non-transitory computer-readable medium, comprising:

code for causing at least one computer to access a femtocell;

code for causing the at least one computer to store information related to the femtocell on a user equipment (UE);

code for causing the at least one computer to assign a priority to the femtocell; and

code for causing the at least one computer to search for the femtocell using the information stored on the UE and the priority assigned to the femtocell.

17. The non-transitory computer-readable medium of claim 16, wherein the information related to the femtocell comprises a scrambling code or physical cell identifier.

18. The non-transitory computer-readable medium of claim 16, wherein the information related to the femtocell comprises a public land mobile network identifier.

19. The non-transitory computer-readable medium of claim 16, wherein the information related to the femtocell comprises a location area code.

20. The non-transitory computer-readable medium of claim 16, wherein the information related to the femtocell comprises a fingerprint.