KR20110003399A - Method, system and device for acquiring emergency service information - Google Patents

Abstract

The present invention provides a method and system for obtaining emergency service information, such that a user equipment (UE) sends a message indicating an attachment update to a service mobility management entity (MME), and the service MME sends a message indicating the attachment update. After reception, a message indicating the attachment update success or failure is transmitted to the UE, among which emergency service information supported by the network to which the service MME belongs is included, and the UE displays a message indicating the attachment success or failure. After receiving, analyzing the emergency service information included therein. The present invention simultaneously presented a UE and an MME.

Description

METHOD, SYSTEM AND DEVICE FOR ACQUIRING EMERGENCY SERVICE INFORMATION}

TECHNICAL FIELD The present invention relates to the field of mobile communications, and more particularly, to a method, system, and facility for obtaining emergency service information.

Emergency services, such as fire alarms and emergency rescue, are services provided by operators to mobile users to help them get out of trouble. When mobile users are in trouble, for example, human attacks, fires, outbreaks, etc. If you do, get in touch with the agency as soon as possible so you can get help.

In the 3rd Generation Partnership Project (3GPP) system, the network side provides emergency services to users in a Circuit Switching (CS) domain. With the continuous development of communication technology, communication system structure is continuously evolving, and communication service based on CS domain is gradually replaced by communication service based on packet switching (PS) domain. For example, a communication system including an IP-Connectivity Access Network (IP-CAN) and a Packet Data Network (PDN) may provide a communication service based on a PS domain. Among the most common IP-CAN networks are the General Packet Radio Service (GPRS) network, the Evolved Packet System (EPS), and Code-Division Multiple Access (CDMA) 2000. Networks, and the like, and frequently viewed PDN networks include IP MultiMedia Subsystem (IMS) networks, Packet Switched Service (PSS) networks, and the like.

Referring to FIG. 1, FIG. 1 is a diagram illustrating a conventional interoperable GPRS network and an EPS network structure. Nodes mainly implemented in FIG. 1 include user equipment (UE), evolved universal terrestrial radio access network (E-UTRAN), mobility management entity (MME), home subscriber Server (Home Subscriber Server, HSS), Serving Gateway (Serving GW, S-GW), Packet Data Network Gateway (PDN Gateway, PDN GW), Policy and Charging Rules Function (PCR), Serving The Serving GPRS Support Node (SGSN), and the Radio Access Network (RAN) including UTRAN and GERAN among the GPRS systems are included. A UE supporting a different system, for example, a UE supporting a 3G / 2G system, is connected to a system through a RAN, and mobility management is performed by the SGSN to establish a PDN connection between the UE and the PDN network. . For a UE supporting a Long Term evolution (LTE) system, the UE is connected to the system through the E-UTRAN, and mobility management is performed by the MME to establish a PDN connection between the UE and the PDN network. Typically, the connection between the UE and the PDN GW is also called a PDN connection.

The patent application document entitled << Emergency Bearer Establishment Method and Communication System >> Used for Emergency Call Service ", which is filed by the applicant, has an emergency call number and emergency number in advance when providing emergency service to the UE in the PS domain. Emergency service information such as an access point name (APN) is stored in the UE, and when the UE sends an emergency call request message, the emergency service information is sent to the network so that the network side can handle emergency bearer establishment and the like. It is written to proceed. Among them, the emergency APN is mainly used to find the PDN GW corresponding to the emergency APN on the network side and to establish an emergency bearer between the UE and the PDN network for emergency service realization through the PDN GW.

In practical situations, emergency service information stored in a UE used by a mobile user typically applies only to one fixed service area, but the mobile user's range of activity typically moves, for example, from a source location to a visit, or even a zone. In this situation, even if there is roaming protocol support between two carriers or different networks of the same carrier, even if the mobile user attempts to claim emergency services, the pre-stored emergency Service information cannot be applied, resulting in a billing failure, which results in a loss for the mobile user.

It is a main object of the present invention to provide a method of obtaining emergency service information that enables a UE to obtain applied emergency service information in a timely manner.

Another object of the present invention is to provide an emergency service information acquisition system that allows a UE to acquire applied emergency service information in a timely manner.

It is another object of the present invention to provide a mobile management entity that enables a UE to obtain applied emergency service information in a timely manner.

It is a further object of the present invention to provide a user equipment which enables the UE to obtain applied emergency service information in a timely manner.

In order to achieve the above object, the technical solution of the present invention is realized as follows.

As a method of obtaining emergency service information,

User Equipment (UE) sends a message indicating the attachment update to the service mobility management entity (MME),

The service MME transmits a message indicating the attachment update success or failure to the UE, the message indicating the attachment update success or failure includes emergency service information supported by the network to which the service MME belongs,

And analyzing, by the UE, emergency service information included in the message indicating the success or failure of the attachment.

An emergency service information acquisition system,

User equipment (UE) and service mobility management entity (MME),

The UE transmits a message indicating an attachment update to the service MME, receives a message indicating a success or failure of the attachment update returned from the service MME, analyzes emergency service information included therein,

The service MME receives a message indicating the attachment update from the UE, returns a message indicating the attachment update success or failure, and the service MME belongs to the message indicating the attachment update success or failure. Information on emergency services supported by the network is included.

As a mobility management entity,

An information transceiving processing unit for receiving a message indicating the attachment update from the user equipment (UE), and transmitting a message indicating the attachment update success or failure to the UE, and

Create a message indicating the attachment update success or failure, and the message indicating the attachment update success or failure includes a message making unit including emergency service information supported by the network where the mobile management entity is located.

As user equipment,

An information transceiving processing unit for transmitting a message indicating an attachment update to a service mobility management entity (MME), and receiving a message indicating an attachment update success or failure, and

And an analysis unit for analyzing emergency service information supported by the network to which the service MME belongs, included in a message indicating an attachment update success or failure.

The user equipment,

Preferably, the analysis unit further includes a storage unit for storing the emergency service information analyzed.

As can be seen from above, when using the technology of the present invention, when the UE needs to proceed with the attachment update, the UE transmits a message indicating the attachment update to the service MME, after the service MME receives the message, A message indicating the attachment update success or failure is returned to the UE, and emergency service information supported by the network to which the UE has requested the attachment is transmitted to the UE by a message indicating the attachment update success or failure. In contrast to the prior art, the scheme of the present invention enables the UE to obtain the applied emergency service information in a timely manner, thereby successfully deploying the emergency service in the attached network, thereby preventing the loss of the mobile user. In addition, the solution of the present invention is simple and easy, has a very small influence on the norm, and is easy to spread.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings, to enable those skilled in the art to clarify the above and other features and advantages of the present invention. In the accompanying drawings,
1 is a diagram illustrating a structure of a conventional interoperable GPRS network and an EPS network.
2 is a flowchart of acquiring emergency service information by the UE in Embodiment 1 of the present invention.
3 is a flowchart of acquiring emergency service information by the UE in Embodiment 2 of the present invention.
4 is a diagram illustrating a structure of an MME according to an embodiment of the present invention.
5 is a diagram illustrating a structure of a UE according to an embodiment of the present invention.

In the present invention, in order to be able to update the emergency service information stored in the UE in a timely manner, the UE may select one of the EPS networks.

When in the service zone, when the UE sends a message indicating the attachment update to the service MME, the service MME sends the emergency service information supported by the network in the service zone by the message indicating the success or failure of the attachment update. By sending a message to the UE to obtain emergency service information.

The emergency service information supported by the network refers to an emergency APN related to an emergency service in the network of the service area where the UE is located, and one or several emergency call numbers or a list of emergency call numbers that the emergency APN is responsible for.

BRIEF DESCRIPTION OF DRAWINGS To make the technical solutions and advantages of the present invention clearer, it is described in more detail with reference to the accompanying drawings.

Example 1

In the first embodiment, assuming that the UE attaches again, for example, by turning on, for example, in a service area, the message indicating the attachment update that the UE sends to the service MME may be an Attach Request message. . Referring to FIG. 2, FIG. 2 is a flowchart of acquiring emergency service information by the UE in the first embodiment, and includes the following steps.

The UE initiates a network attach process and sends an attach request message to the service MME (step 201).

The attachment request message includes the UE identifier and other information required for attachment, such as attachment type, UE network capability, and information related to requesting the UE to deploy an address to connect to the PDN network after attachment. The UE identifier may be a user permanent identifier (IMSI) or a globally unique temporary identity (GUTI).

The service MME performs authentication processing on the UE according to the known UE contract information (step 202).

After the service MME succeeds in authenticating the UE, the service MME initiates the location update process and the contract data insertion process of the UE with respect to the HSS, and updates information such as the UE location on the HSS (step 203).

The service MME determines whether normal service can be provided to the UE according to the acquired contract data. If it cannot provide, the service MME executes step 205a, and if so, executes step 205b (step 204).

For example, in a situation where a UE is a Gotone contract user, it can be seen from the contract data of the UE that the service of the UE can be deployed within the global scope, so that the service MME To provide services. However, for example, in a situation where the UE is a local contract user, after the UE moves to the non-contracted region, the contract data indicates that the service MME of the non-contracted region does not provide the service to the UE.

In a practical application, when the service MME is the MME that handled the early attachment of the UE, the contract data of the UE is temporarily stored in the service MME, otherwise the service MME processes the early attachment of the UE from the GUTI transmitted by the UE. One source MME can be known, and by acquiring the contract data of the UE from the source MME, it is prevented from obtaining the contract data of the UE from the home subscriber server (HSS) again, thereby reducing the processing load of the HSS. Regarding the procedure for the service MME to obtain the contract data of the UE from the source MME or the HSS, reference may be made to the relevant norm and will not be mentioned any further.

The service MME makes an attachment rejection decision and returns an Attach Reject message to the UE indicating an attachment update failure, which includes emergency service information supported by the network to which the UE claimed the attachment. After that, step 206 is executed (step 205a).

The service MME initiates the process of establishing a default bearer in the Serving GW based on the conventional norms so that the default bearer is established between the Serving GW and the PDN GW, and a message indicating the success of the default bearer establishment returned from the Serving GW. After receiving the message, an Attach Accept message indicating a successful attachment update is returned to the UE, and the attachment acceptance message includes a UE identifier, a default bearer ID, and a list of tracking area identifiers. Not only the attachment success information is included, but also the emergency service information supported by the network to which the UE attaches, and then step 206 is executed (step 205b).

The UE receives and analyzes the message including the emergency service information returned from the service MME, stores the analyzed emergency service information, and ends all processes (step 206).

In step 206, the message including the emergency service information received by the UE is an attachment reception message or an attachment rejection message.

 Thereafter, when the UE needs to initiate an emergency service request in the attached network, the UE may transmit emergency service information supported by the corresponding network to the network.

In addition, in a practical application, after the service MME obtains the contract data of the UE from the source MME, the service MME initiates the location update process of the UE in the HSS, according to the conventional relevant norm, and then the new location information of the UE. Information may be interchanged with the HSS.

Example 2

In Example 2, it is assumed that after the UE has successfully attached to one service zone M (also referred to as tracking zone M), the UE has moved to another tracking zone N, and the UE claims emergency service in tracking zone N. In order to ensure successful initiation, the emergency service information stored in the UE must be updated. In the second embodiment, the message indicating the attachment update transmitted from the UE to the service MME in the tracking zone N is a tracking area update request message.

Referring to FIG. 3, FIG. 3 is a flowchart of acquiring emergency service information by the UE in the second embodiment, and includes the following steps.

The UE initiates the tracking zone update process and sends a tracking zone update request message to the service MME (step 301).

The tracking zone update request message includes information specified by the relevant norms, such as a user identifier (user temporary identifier GUTI) and a last visited TAI.

The service MME performs authentication processing on the UE according to the contract data of the UE obtained from the source MME to which the tracking zone M belongs (step 302).

After successful authentication to the UE, the service MME sends a bearer establishment request message to the Serving GW based on the conventional norm, and instructs the Serving GW to proceed with the request and response process of bearer update to the PDN GW. After completion, the Serving GW returns a bearer establishment response message to the service MME, instructing completion of bearer update (step 303).

After receiving the bearer establishment response message returned from the Serving GW, the service MME initiates a location update process and a contract data insertion process to the HSS based on the conventional rules, and updates the UE's location and bearer update information with the HSS. Exchange (step 304).

The service MME determines whether normal service can be provided to the UE according to the contract data of the UE obtained from the source MME, and if not, executes step 306a, and if so, executes step 306b (step 305). ).

The service MME makes a decision to reject the attachment and returns a Tracking Area Update Reject message to the UE indicating the attachment failure, which includes emergency service information supported by the network, and then step 306. Is executed (step 306a).

The service MME returns a Tracking Area Update Accept message to the UE indicating the success of the tracking zone update, which includes information such as the user temporary identifier GUTI and the list of tracking zone identifiers, as well as emergency services. Information is further included (step 306b).

The emergency service information includes an emergency call number and an emergency APN.

In addition, the GUTI in the tracking zone update reception message is placed by the service MME and is different from the GUTI in step 301.

The UE receives and analyzes the message including the emergency service information returned from the service MME, stores the analyzed emergency service information, and ends all processes (step 307).

In step 307, the message including the emergency service information received by the UE is a tracking zone update acceptance message or tracking zone update rejection message.

Thereafter, when the UE needs to initiate an emergency service request in the attached network, the UE may transmit emergency service information that can be supported by the acquired network to the network side.

Herein, in the procedure of the second embodiment, a method of transmitting, by the service MME, emergency service information supported by the network to which the affiliated network is supported through the tracking zone update process is performed by the EPS network handover procedure and wireless access network (GSM). Edge Radio Access Network (GERAN, GSM / Edge) to E-UTRAN handover procedure, UTRAN to E-UTRAN handover procedure, GERAN to E-UTRAN update tracking procedure, and UTRAN to E-UTRAN tracking zone It can be applied to an update procedure.

Based on the above scheme, the present invention also provides a system for obtaining emergency service information including a UE and a service MME. Among them,

The UE sends a message indicating the attachment update to the service MME, receives a message indicating the success or failure of the attachment update returned from the service MME, analyzes emergency service information included therein,

The service MME receives a message indicating the attachment update from the UE, returns a message indicating the attachment update success or failure, and the network to which the service MME belongs is supported by the message indicating the attachment update success or failure. Emergency service information is included.

Among them, specific structures of the UE and the service MME are as shown in FIGS. 4 and 5, respectively.

4 is a diagram showing the structure of an MME according to an embodiment of the present invention, and includes an information transmission and reception processing unit 401 and a message making unit 402, among which

The information transmission / reception processing unit 401 receives a message indicating the attachment update from the UE, and transmits a message indicating the attachment update success or failure generated by the message making unit 402 to the UE;

After the message creation unit 402 receives the message indicating the attachment update, the information sending / receiving processing unit 401 generates a message indicating the attachment update success or failure, and the message is supported by the network to which the MME belongs. Emergency service information is included.

Referring to FIG. 5, FIG. 5 is a diagram illustrating a structure of a UE according to an embodiment of the present invention, and includes an information transmitting and receiving processing unit 501 and an analyzing unit 502, among which

The information transmission / reception processing unit 501 sends a message indicating the attachment update to the service MME, and receives a message indicating the success or failure of the attachment update returned from the service MME;

The analysis unit 502 analyzes the emergency service information supported by the network to which the service MME belongs, included in a message indicating the attachment update success or failure returned from the service MME.

In addition, the UE illustrated in FIG. 5 may further include a storage unit 503 that stores emergency service information analyzed by the analysis unit 502. The storage unit 502 may be a Universal Integrated Circuit Card (UICC) or the mobile facility itself.

Collectively speaking, using the inventive scheme, when a UE needs to proceed with an attachment update, the UE sends a message indicating the attachment update to the service MME, and after the service MME receives the message, the attachment update succeeds or A message indicating a failure is returned to the UE, and emergency service information supported by the network to which the UE has requested an attachment is transmitted to the UE by a message indicating the success or failure of the attachment update. In contrast to the prior art, in the above-described scheme of the present invention, whether the UE roams internationally or moves between domestic zones, or whether the service provider updates emergency service information, all processes such as reattachment of the UE or update of the tracking zone are performed. Thereby allowing the UE to obtain the applied emergency service information in a timely manner, thereby successfully deploying the emergency service in the resident network and preventing the loss of the mobile user. In addition, the solution of the present invention is simple and easy, has a very small influence on the norm, and is easy to spread.

What is described here is described by way of example only, and is not intended to limit the technical scope of the present invention. All modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims (10)

As a method of obtaining emergency service information,
User Equipment (UE) sends a message indicating the attachment update to the service mobility management entity (MME),
The service MME transmits a message indicating the attachment update success or failure to the UE, the message indicating the attachment update success or failure includes emergency service information supported by the network to which the service MME belongs,
And analyzing, by the UE, emergency service information included in the received message indicating the success or failure of the attachment. The method of claim 1,
The message indicating the attachment update includes an Attach Request message,
An Attach Accept message is included in the message indicating the attachment update success,
Method for obtaining emergency service information, characterized in that the Attach Reject message is included in the message indicating that the attachment update failed. The method of claim 1,
The message indicating the attachment update includes a tracking area update request message,
The message indicating the attachment update success includes a Tracking Area Update Accept message,
And a tracking area update reject message is included in the message indicating the attachment update failure. 4. The method according to any one of claims 1 to 3,
Installing the emergency service information in the service MME, or
Obtaining the emergency service information from the home subscriber server (HSS) corresponding to the service zone where the service MME is located, the emergency service information further comprises the pre-arranged in the HSS of the emergency service information Acquisition method. 4. The method according to any one of claims 1 to 3,
And obtaining, by the UE, the emergency service information. 4. The method according to any one of claims 1 to 3,
And one or more emergency call numbers and an emergency access point name (APN) corresponding to the one or more emergency call numbers in the emergency service information. An emergency service information acquisition system,
User equipment (UE) and service mobility management entity (MME),
The UE transmits a message indicating an attachment update to the service MME, receives a message indicating a success or failure of the attachment update returned from the service MME, analyzes emergency service information included therein,
The service MME receives a message indicating an attachment update from the UE, returns a message indicating an attachment update success or failure, and the service MME belongs to a message indicating the attachment update success or failure. Emergency service information acquisition system, characterized in that the emergency service information supported by the network. As a mobility management entity,
An information transceiving processing unit for receiving a message indicating the attachment update from the user equipment (UE), and transmitting a message indicating the attachment update success or failure to the UE, and
A message making unit for generating a message indicating an attachment update success or failure and including an emergency service information supported by the network where the mobile management entity is located in the message indicating the attachment update success or failure. Mobility management entity. As user equipment,
An information transceiving processing unit for transmitting a message indicating an attachment update to a service mobility management entity (MME), and receiving a message indicating an attachment update success or failure, and
And an analysis unit for analyzing emergency service information supported by the network to which the service MME belongs, included in a message indicating an attachment update success or failure. 10. The method of claim 9,
And a storage unit for storing the emergency service information analyzed by the analysis unit.

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