METHOD FOR CONTROLLING ACCESS IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SUPPORTING SAME

• US 20150249951A1
• Filed: 11/06/2013
• Published: 09/03/2015
• Est. Priority Date: 11/06/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, Sunghoon, Lee, Youngdae, Park, Sungjun, Yi, Seungjune
• Granted Patent: US 9,485,710 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions
• CPC Class Codes: H04W 48/04 based on user or terminal location or mobility data, e.g. moving direction, speed
• 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 60/04 using triggered events
• CPC Class Codes: H04W 8/186 Processing of subscriber group data

Abstract

Provided is a method for a terminal controlling access in a wireless communication system. The method comprises: obtaining service-specific access control information; obtaining service group access control information; and controlling access to a specific type of service based on the service group access control information and the service-specific access control information. The service-specific access control information includes a service-specific barring factor parameter which is applied to the specific type of service. The service group access control information includes a service group barring factor parameter which is commonly applied to specific service groups that include at least one type of service.

Claims

1. A method for an access control performed by a terminal in a wireless communication system, the method comprising:

obtaining service specific access control information;

obtaining service group access control information; and

performing an access control for a specific type of a service on the basis of the service group access control information and the service specific access control information,

wherein the service specific access control information includes a service specific barring factor parameter applied to the specific type of the service, and

wherein the service group access control information includes a service group barring factor parameter applied commonly to a specific service group including at least one type of the service.

2. The method of claim 1, wherein the performing of the access control comprises, if the specific type of the service is included in the specific service group, determining whether an access to the specific service is allowed by applying the service specific barring factor parameter and the service group barring factor parameter.

3. The method of claim 2, wherein the determining of whether the access is allowed comprises:

calculating a survival rate by using a value of the service specific barring factor parameter and a value of the service group barring factor parameter; and

if a randomly drawn value within a uniformly distributed range is less than the survival rate, determining that the access to the specific service is allowed.

4. The method of claim 2, wherein the performing of the access control further comprises, if the specific type of the service is not included in the specific service group, determining whether the access to the specific service is not allowed by applying the service specific barring factor parameter without having to apply the service group barring factor parameter.

5. The method of claim 4, wherein the determining of whether the access is allowed comprises:

calculating a survival rate by using a value of the service specific barring factor parameter; and

if a randomly drawn value within a uniformly distributed range is less than the survival rate, determining that the access to the specific service is allowed.

6. The method of claim 1, wherein the performing of the access control comprises, if the specific type of the service is included in the specific service group, determining whether an access to a specific service is allowed by applying the service group barring factor parameter without having to apply the service specific barring factor parameter.

7. The method of claim 6, wherein the determining of whether the access is allowed comprises:

calculating a survival rate by using a value of the service group barring factor parameter; and

if a randomly drawn value within a uniformly distributed range is less than the survival rate, determining that the access to the specific service is allowed.

8. The method of claim 6, wherein the performing of the access control comprises, if the specific type of service is included in the specific service group, determining whether the access to the specific service is allowed by applying the service specific barring factor parameter without having to apply the service group barring factor parameter.

9. The method of claim 8, wherein the determining of whether the access is allowed comprises:

calculating a survival rate by using a value of the service specific barring factor parameter; and

if a randomly drawn value within a uniformly distributed range is less than the survival rate, determining that the access to the specific service is allowed.

10. The method of claim 1, further comprising receiving service grouping information, wherein the service grouping information indicates a relation between the specific service and the specific service group.

11. The method of claim 1, wherein access class barring information based on an access class allowed to the terminal is additionally applied to an access control for the specific service.

12. A wireless apparatus operating in a wireless communication system, the apparatus comprising:

a radio frequency (RF) unit for transmitting and receiving a radio signal; and

a processor operatively coupled to the RF unit, wherein the processor is configured for;

obtaining service specific access control information;

obtaining service group access control information; and

performing an access control for a specific type of a service on the basis of the service group access control information and the service specific access control information,

wherein the service specific access control information includes a service specific barring factor parameter applied to the specific type of the service, and

wherein the service group access control information includes a service group barring factor parameter applied commonly to a specific service group including at least one type of the service.

13. A method of controlling an access performed by a terminal in a wireless communication system, the method comprising:

obtaining service-specific access control information applied to a specific service; and

performing an access control for a requested service,

wherein the performing of the access control for the requested specific service comprises;

if the requested service corresponds to the specific service, performing an access control for the requested service on the basis of the service specific access control information; and

if the requested service does not correspond to the specific service, performing an access control for the requested service on the basis of default service group access control information applied to a service group other than the specific service.

14. The method of claim 13, wherein the default service group access control information is pre-set in the terminal.