Method and apparatus for performing access class barring in wireless communication system

• US 9,497,687 B2
• Filed: 07/09/2013
• Issued: 11/15/2016
• Est. Priority Date: 07/10/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Youngdae, Park, Sungjun, Yi, Seungjune, Jung, Sunghoon
• Primary Examiner(s): Lai, Andrew
• Assistant Examiner(s): Rahman, M Mostazir
• Application Number:
  US14/414,046
• Publication Number:
  US 20150215843A1
• Time in Patent Office: 1,225 Days
• US Class Current: 1/1
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 8/186 Processing of subscriber group data

Abstract

A method and apparatus of establishing a connection in a wireless communication system is provided. A user equipment (UE) receives first barring information for member UEs and second barring information for non-member UEs, determines whether the UE is able to access to a cell or not based on one of the first barring information and the second barring information according to whether the UE is either a member UE or a non-member UE, and transmits an access request if it is determined that the UE is able to access to the cell.

Claims

1. A method of establishing, by a first user equipment (UE), a connection in a wireless communication system, the method comprising:

receiving, by the first UE, cell type information via a system information block type 1 (SIB1),

wherein the cell type information indicates that a closed subscriber group (CSG) indication is set to ‘

false’ and

that a CSG identity is present;

receiving, by the first UE, first barring information for member UEs and second barring information for non-member UEs,

wherein the member UEs are members of a specific CSG,

wherein the non-member UEs are not members of the specific CSG,

wherein the first barring information and the second barring information are received via system information block type 2 (SIB2),

wherein the first barring information and the second barring information include two different sets of equivalent parameters, respectively, and

wherein each set of the equivalent parameters includes a barring factor and a barring time;

determining, by the first UE, whether or not the first UE is able to access a cell based on one of the first barring information and the second barring information according to whether the first UE is a member UE or a non-member UE,

wherein the cell is a hybrid cell; and

transmitting, by the first UE, an access request if it is determined that the first UE is able to access the cell.

2. The method of claim 1, wherein whether or not the first UE is able to access the cell is determined based on the first barring information if the first UE is a member of a specific CSG.

3. The method of claim 1, wherein whether or not the first UE is able to access the cell is determined based on the second barring information if the first UE is not a member of a specific CSG.

4. The method of claim 1, wherein whether or not the first UE is able to access the cell is determined when a radio resource control (RRC) connection establishment is initiated.

5. The method of claim 1, wherein the access request is a radio resource control (RRC) connection request.

6. The method of claim 1, wherein the access request includes a CSG membership status of the first UE.

7. A first user equipment (UE) in a wireless communication system, the first UE comprising:

a radio frequency (RF) unit configured to transmit or receive a radio signal; and

a processor operably coupled to the RF unit and configured to;

receive cell type information via a system information block type 1 (SIB1),

wherein the cell type information indicates that a closed subscriber group (CSG) indication is set to ‘

false’ and

that a CSG identity is present;

receive first barring information for member UEs and second barring information for non-member UEs,

wherein the member UEs are members of a specific CSG,

wherein the non-member UEs are not members of the specific CSG,

wherein the first barring information and the second barring information are received via system information block type 2 (SIB2),

wherein the first barring information and the second barring information include two different sets of equivalent parameters, respectively, and

wherein each set of the equivalent parameters includes a barring factor and a barring time;

determine whether or not the first UE is able to access a cell based on one of the first barring information and the second barring information according to whether the first UE is a member UE or a non-member UE,

wherein the cell is a hybrid cell; and

transmit an access request if it is determined that the first UE is able to access the cell.

8. The first UE of claim 7, wherein whether or not the first UE is able to access the cell is determined based on the first barring information if the first UE is a member of a specific CSG.

9. The first UE of claim 7, wherein whether or not the first UE is able to access the cell is determined based on the second barring information if the first UE is not a member of a specific CSG.

10. The first UE of claim 7, wherein whether or not the UE is able to access the cell is determined when a radio resource control (RRC) connection establishment is initiated.

11. The first UE of claim 7, wherein the access request is a radio resource control (RRC) connection request.

12. The first UE of claim 7, wherein the access request includes a CSG membership status of the first UE.