Method and apparatus for supporting CSG service in wireless communication system

• US 8,682,299 B2
• Filed: 02/01/2010
• Issued: 03/25/2014
• Est. Priority Date: 02/01/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, SungHoon, Chun, SungDuck, Yi, Seungjune, Lee, Young Dae, Park, Sung Jun
• Primary Examiner(s): NGUYEN, KHAI MINH
• Application Number:
  US12/697,455
• Publication Number:
  US 20100197277A1
• Time in Patent Office: 1,513 Days
• Field of Search: 455/414.1, 455/434, 455/435.1, 455/552.1, 455/550.1, 455/456.5, 455/519
• US Class Current: 455/414.1
• CPC Class Codes: H04W 36/0077 of access information of target access point
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 74/00 Wireless channel access
• 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 8/186 Processing of subscriber group data
• CPC Class Codes: H04W 8/20 Transfer of user or subscriber data

Abstract

A method and apparatus for supporting a closed subscriber group (CSG) service is provided. The apparatus includes a memory configured to store CSG subscription information, and a processor operatively coupled to the RF unit and the memory and to implement a radio interface protocol. The processor is configured to access to a base station (BS), transmit the CSG subscription information to the BS, receive an access mode from the BS, wherein the access mode is determined based on the CSG subscription information, and negotiate with the BS on a CSG service if the access mode supports a CSG to which the apparatus belongs.

Claims

1. A method of supporting a closed subscriber group (CSG) service in a wireless communication system, the method performed by a user equipment and comprising:

receiving a request from a serving cell for CSG subscription of a neighbor cell;

receiving system information broadcast by the neighbor cell, the system information including a CSG identity of the neighbor cell; and

transmitting CSG subscription information to the serving cell, the CSG subscription information including the CSG identity of the neighbor cell and a CSG membership indicator indicating whether the user equipment is a member of a CSG of the neighbor cell.

2. The method of claim 1, further comprising:

receiving a physical cell identity of the neighbor cell, wherein the physical cell identity is used to identify the neighbor cell.

3. The method of claim 1, further comprising:

receiving a handover command indicating a handover from the serving cell to the neighbor cell.

4. The method of claim 1, wherein the CSG membership indicator is not included in the CSG subscription information if the CSG identity is not included in a user equipment CSG whitelist.

5. A user equipment for supporting a closed subscriber group (CSG) service in a wireless communication system, the user equipment comprising:

a memory configured to store a user equipment CSG whitelist; and

a processor operatively coupled to the memory and configured to;

receive a request from a serving cell for CSG subscription of a neighbor cell;

receive system information broadcast by the neighbor cell, the system information including a CSG identity of the neighbor cell and

transmit CSG subscription information to the serving cell, the CSG subscription information including the CSG identity of the neighbor cell and a CSG membership indicator indicating whether the user equipment is a member of a CSG of the neighbor cell.

6. The user equipment of claim 5, wherein the processor is further configured to receive a physical cell identity of the neighbor cell, wherein the physical cell identity is used to identify the neighbor cell.

7. The user equipment of claim 5, wherein the processor is further configured to receive a handover command indicating a handover from the serving cell to the neighbor cell.

8. The user equipment of claim 5, wherein the CSG membership indicator is not included in the CSG subscription information if the CSG identity is not included in the user equipment CSG whitelist.