Apparatus and method for performing cell selection to home cell or private network in a mobile communication system

• US 8,036,656 B2
• Filed: 01/16/2008
• Issued: 10/11/2011
• Est. Priority Date: 01/16/2007
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Van Lieshout, Gert Jan, Jeong, Kyeong-In, Kim, Soeng-Hun
• Primary Examiner(s): WASHINGTON, ERIKA ALISE
• Application Number:
  US12/015,182
• Publication Number:
  US 20080227447A1
• Time in Patent Office: 1,364 Days
• Field of Search: None
• US Class Current: 455/434
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 8/18 Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
• CPC Class Codes: H04W 84/105 PBS [Private Base Station] network H04W84/12 - H04W84/16 take precedence

Abstract

An apparatus and method for performing cell selection to a Home cell or a Private network in a mobile communication system are provided, in which a User Equipment (UE) determines a candidate cell by measuring a serving cell and neighbor cells, receives an indicator indicating a Home cell or a Private network in system information from the candidate cell, determines whether the candidate cell is included in a Home cell or Private network list set in the UE, and selects the candidate cell if the candidate cell is included in the Home cell or Private network list.

Claims

1. A method for performing cell selection to a Closed Subscriber Group (CSG) cell by a User Equipment (UE) in a mobile communication system, comprising:

determining, by the UE, a candidate cell by measuring neighbor cells;

receiving Public Land Mobile Network (PLMN) information, an indicator indicating information related to the CSG cell, and a CSG IDentification (ID) from the candidate cell;

determining whether the candidate cell belongs to a registered or selected PLMN, based on the PLMN information;

determining whether the candidate cell is included in a CSG list in the UE, based on the CSG ID; and

selecting the candidate cell, if the candidate cell belongs to the registered or selected PLMN and is included in the CSG list.

2. The method of claim 1, further comprising storing the CSG list in a Universal Subscriber Identity Module (USIM) of the UE.

3. The method of claim 1, wherein the indicator indicating the information related to the CSG cell indicates that the UE is accessible to the CSG cell when the CSG cell is included in the CSG list in the UE.

4. The method of claim 1, wherein the CSG list is signaled to the UE from a predetermined higher network.

5. The method of claim 1, wherein the CSG ID and the indicator indicating the information related to the CSG cell are received in system information from the candidate cell.

6. The method of claim 1, wherein determining whether the candidate cell is included in the CSG list in the UE comprises determining whether the CSG ID of the candidate cell is included in the CSG list.

7. The method of claim 1, further comprising identifying the candidate cell as an unselectable candidate, if the candidate cell is not included in the CSG list.

8. An apparatus of a User Equipment (UE) for performing cell selection to a Closed Subscriber Group (CSG) cell in a mobile communication system, comprising:

a measurer for measuring neighbor cells to determine a candidate cell;

an indicator analyzer for receiving Public Land Mobile Network (PLMN) information, an indicator indicating information related to a CSG cell, and a CSG IDentification (ID) from the candidate cell;

an accessibility decider for determining whether the candidate cell belongs to a registered or selected PLMN, based on the PLMN information, and determining whether the candidate cell is included in a CSG list in the UE, based on the CSG ID; and

a cell re-selection decider for selecting the candidate cell, if the candidate cell belongs to the registered or selected PLMN and is included in the CSG list.

9. The apparatus of claim 8, wherein the CSG list is stored in a Universal Subscriber Identity Module (USIM) of the UE.

10. The apparatus of claim 8, wherein the indicator indicating information related to the CSG cell indicates that the UE is accessible to the CSG cell, when the CSG cell is included in the CSG list in the UE.

11. The apparatus of claim 8, wherein the CSG list is signaled to the UE from a predetermined higher network.

12. The apparatus of claim 8, wherein the CSG ID and the indicator indicating information related to the CSG cell are received in system information from the candidate cell.

13. The apparatus of claim 8, wherein the accessibility decider determines whether the candidate cell is included in the CSG list in the UE by determining whether the CSG ID of the candidate cell is included in the CSG list.

14. The apparatus of claim 8, wherein the cell re-selection decider identifies the candidate cell as an unselectable candidate, if the candidate cell is not included in the CSG list.

15. A method for servicing a Closed Subscriber Group (CSG) cell in a Node B in a mobile communication system, comprising:

setting, by the Node B, Public Land Mobile Network (PLMN) information, an indicator indicating information related to the CSG cell, and a CSG IDentification (ID) in system information; and

broadcasting the PLMN information, the indicator, and the CSG ID in the system information to a User Equipment (UE).

16. The method of claim 15, wherein the indicator indicating information related to the CSG cell indicates that a UE is accessible to the CSG cell, when the CSG cell is included in a CSG list in the UE.

17. The method of claim 15, wherein the CSG list is signaled from a predetermined higher network to the UE.

18. An apparatus of a Node B for servicing a Closed Subscriber Group (CSG) cell in a mobile communication system, comprising:

a setter for setting Public Land Mobile Network (PLMN) information, an indicator indicating information related to the CSG cell, and a CSG IDentification (ID) in system information; and

a transceiver for broadcasting the PLMN information, the indicator indicating the information related to the CSG cell, and the CSG ID in the system information to a User Equipment (UE).

19. The apparatus of claim 18, wherein the indicator indicating information related to the CSG cell indicates that the UE is accessible to the CSG cell, when the CSG cell is included in a CSG list in the UE.

20. The apparatus of claim 18, wherein the CSG list is signaled from a predetermined higher network to the UE.