Method and device for managing access of connected terminals

• US 10,231,169 B2
• Filed: 06/30/2014
• Issued: 03/12/2019
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Cho, Songyean, Won, Sung Hwan, Jeong, Sangsoo
• Primary Examiner(s): Tsegaye, Saba
• Application Number:
  US14/901,484
• Publication Number:
  US 20160374005A1
• Time in Patent Office: 1,716 Days
• Field of Search: None
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/1045 Proxies, e.g. for session initiation protocol [SIP]
• CPC Class Codes: H04W 48/06 based on traffic conditions
• CPC Class Codes: H04W 8/02 Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The present invention relates to a method and a device for barring access of terminals connected to a base station. A communication method of an Internet protocol multimedia service (IMS) entity, according to one embodiment of the present invention, comprises the steps of: receiving a service request message from a terminal; determining whether to allow an access of a service according to a load status of the IMS and the service requested from the terminal; and transmitting, to the terminal, a connection barring message which includes information for indicating that the access of the terminal is barred, when it is determined to bar the access of the service. According to the one embodiment of the present invention, the IMS can be prevented from being congested due to loads concentrated on IMS entities such as a P-CSCF and the like, and can prevent a situation in which an emergency call or a priority call of a person from a police station or a fire station or the like cannot be received.

Claims

1. A method by a mobility management entity (MME) comprising:

obtaining information on a load status of an internet protocol multimedia service (IMS) entity;

identifying, based on the information on the load status of the IMS entity, whether an overload state of the IMS entity exceed a predetermined level;

if the overload state of the IMS entity exceeds the predetermined level, transmitting, from the MME to a base station, a first control message for controlling connection release of at least one terminal, the first control message including information on a bearer corresponding to an allowed service based on an allocation and retention priority (ARP) or QoS class identifier (QCI); and

if the overload state of the IMS entity does not exceeds the predetermined level, transmitting, from the MME to the base station, a second control message for notifying that an overload has been resolved.

2. The method of claim 1, wherein transmitting of the first message comprises:

identifying the at least one terminal which does not use the allowed service based on the information on the bearer corresponding to the allowed service; and

transmitting the first message including a UE context release command for the at least one terminal.

3. The method of claim 1, wherein the second control message is transmitted to the base station if the first control message including the information on the bearer corresponding to the allowed service has been transmitted to the base station previously.

4. A mobility management entity (MME) comprising:

a transceiver; and

a controller connected with the transceiver and configured to control to;

obtain information on a load status of an internet protocol multimedia service (IMS) entity,

identify, based on the information on the load status of the IMS entity, whether an overload state of the IMS entity exceed a predetermined level,

if the overload state of the IMS entity exceeds the predetermined level, transmit, from the MME to a base station, a first control message for controlling connection release of at least one terminal, the first control message including information on a bearer corresponding to an allowed service based on an allocation and retention priority (ARP) or QoS class identifier (QCI), and

if the overload state of the IMS entity does not exceeds the predetermined level, transmit, from the MME to the base station, a second control message for notifying that an overload has been resolved.

5. The entity of claim 4, wherein the controller is configured to control to:

identify the at least one terminal which does not use the allowed service based on the information on the bearer corresponding to the allowed service; and

transmit the first message including a UE context release command for the at least one terminal.

6. The entity of claim 4, wherein the second control message is transmitted to the base station if the first control message including the information on the bearer corresponding to the allowed service has been transmitted to the base station previously.