CN100466814C - A method of providing emergency services for unactivated users - Google Patents

Abstract

The invention discloses a method for providing an emergency service for an inactive user. The method includes: performing user line signaling interaction between a network service providing system and an inactive user terminal, and collecting numbers input by an inactive user; The system triggers emergency service processing based on the emergency service number dialed by an inactive user. The above-mentioned inventive method solves the technical defect in the prior art that the inactive traditional terminal user cannot trigger the emergency service, and realizes that the inactive user triggers the emergency service.

Description

A method of providing emergency services for unactivated users

technical field

The invention relates to the communication field, in particular to a method for triggering an emergency service for an inactive user.

Background technique

Emergency business refers to the business of providing emergency assistance to the public when the health or safety of individuals or the public is endangered, and life or body is in danger. It requires the service network to provide high-priority call services for emergency services, and route calls to the most suitable public safety access point (PSAP) according to the geographic location information of the calling user. The geographical location information of the call will transfer the call to the most suitable emergency call center (ECC) for processing, and the ECC will quickly provide help to the caller.

In NGN Next Generation Network, IP network technology is used, and the system architecture of bearer, control and service layers is adopted, which will provide rich telecommunication services such as voice, video and multimedia. During the evolution from the existing PSTN/ISDN network to the NGN network, the NGN network can be used to transform and replace the PSTN/ISDN core network, and the PSTN/ISDN network user interface and service capabilities remain unchanged, so that the original PSTN/ISDN ISDN terminals can continue to be used in the NGN network, and the original PSTN/ISDN service experience can remain unchanged, which facilitates the evolution of the existing PSTN/ISDN network to the future NGN network. The transformation and replacement application of the above-mentioned NGN applied to the PSTN/ISDN core network is sometimes also called PSTN/ISDN Emulation (PSTN/ISDN Emulation). In the discussion of the existing PSTN/ISDN simulation implementation technology, there are mainly two implementation ideas: one is based on the implementation of the softswitch architecture with the separation of bearer and control; the other is based on the IMS (IPMultimedia Subsystem) architecture formulated by the 3GPP standard organization accomplish. Whether it is the existing PSTN/ISDN network or the PSTN/ISDN emulation system under study, it is necessary to support emergency services.

In the existing PSTN/ISDN network, emergency services can only be provided to users who have been successfully activated. The emergency service processing flow on the PSTN/ISDN switch is as follows:

1) The switch detects the off-hook event of the user;

2) the switch judges whether the current user is a user in an active state, if not, then ends the processing; if so, then turns to 3) to continue processing;

3) The switchboard plays the number receiving tone to the user, and collects the number input by the user;

4) The exchange performs corresponding call service processing according to the user authority and the dialed number, and if the user dials the emergency service number, the emergency service processing is triggered.

In the softswitch or call server architecture where control and bearer are separated, in terms of the emergency service processing flow of traditional end users, the existing product implementation is to imitate the processing flow of PSTN/ISDN switch, but the whole function may be realized by multiple A separate and independent distributed functional entity cooperates to realize. Under the separation architecture, the detection and control of user line signaling is generally implemented on the gateway product, and then interacts with the functional entity of the control layer through media gateway control protocols, such as H.248 and other protocols. In the PSTN/ISDN simulation based on the IMS architecture, the technical research has just started, and there is no specific process specification definition for emergency services, and there is no actual product application to support emergency services.

In the existing technology, due to technical design defects such as not performing any business processing on the inactive user or blocking the line port of the inactive user in the business processing flow, the user line of the inactive user cannot work normally, whether it is Neither the narrowband switch nor the PSTN/ISDN emulation technology based on the softswitch or IMS technology based on the bearer and control phase separation architecture has not realized the emergency service support for the unactivated traditional terminal users.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method for providing emergency services to non-activated traditional terminal users, so that the non-activated traditional terminals can trigger emergency services when the user line is normal.

In order to achieve the above object, technical scheme of the present invention is:

A method for providing emergency services for unactivated users, characterized in that, comprising the following steps:

A. Perform user line signaling interaction between the network service provision system and the non-activated user terminal, and collect the number input by the non-activated user;

B. The network service provision system triggers emergency service processing according to the emergency service number dialed by the inactive user.

The step B further includes: the network service providing system assigns a specific calling number to the inactive user terminal, so as to obtain the location information of the user terminal.

The network service provision system includes a bearer layer access gateway functional entity and a control layer call session control functional entity that are separated from each other; before the step A, it further includes: configuring user terminal port parameters of inactive users on the access gateway functional entity , configure the emergency service processing authority of the inactive user on the call session control functional entity; the step A is to perform user line signaling interaction between the access gateway functional entity and the inactive user terminal, and collect the number input by the inactive user , and report the number to the call session control function entity; the step B is that the call session control function entity triggers emergency service processing according to the emergency service number dialed by the inactive user.

In the step B, the call session control function entity assigns a specific calling number to the inactive user terminal.

The call session control function entity is an IMS access adaptation function entity or a soft switch.

The step that step A collects the number that does not activate user terminal input specifically includes:

The access gateway functional entity detects the off-hook event of the inactive user terminal, and reports the user off-hook event to the call session control functional entity;

The call session control functional entity instructs the access gateway functional entity to play a dial tone to the inactive user terminal;

The inactivated user terminal dials a number, and the access gateway functional entity collects the number.

The H.248 or MGCP media gateway protocol is used for communication between the access gateway functional entity and the call session control functional entity.

The network service providing system is a narrowband switch integrating the bearer layer and the control layer.

The step of collecting the number input by the non-activated user terminal in the step A specifically includes:

The narrowband switch detects an off-hook event of an inactive user terminal, and the narrowband switch plays a sign-in tone to the inactive user terminal;

The inactive user terminal dials a number, and the narrowband switch collects the number.

This shows that method of the present invention has the following advantages:

The application of the technical scheme of the present invention can make the user's telephone line ready, and the physical conditions for transmitting user line signaling between the user terminal and the network system are already available, but because the user has not yet applied for the allocation of user numbers and opened services, or the user applies for shutdown, or Users who are in an inactive state due to failure to register successfully in the network system can still trigger and enjoy emergency services, which will have great social significance for the reporting and timely processing of emergency affairs in certain specific situations.

Therefore, the method of the invention enables more users to enjoy emergency services, and greatly improves users' satisfaction with network operators.

Description of drawings

Figure 1 is a PSTN/ISDN service simulation system based on IMS architecture;

Fig. 2 is the emergency service process of dialing an emergency service by an unsuccessfully registered user under the IMS framework of the present invention;

Fig. 3 is the PSTN/ISDN service simulation system based on the softswitch architecture;

Fig. 4 is the flow of emergency service dialed by an inactivated user under the softswitch architecture of the present invention;

Fig. 5 is a narrowband PSTN/ISDN network;

Fig. 6 is the procedure of emergency service dialed by the user when the narrowband PSTN/ISDN network is shut down according to the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1: In the present invention, a method for triggering an emergency service by an unsuccessfully registered user under the IMS framework.

As shown in Figure 1, Figure 1 is a PSTN/ISDN service simulation system based on the IMS architecture, wherein:

The access gateway functional entity provides the access function of the traditional terminal user line, and provides the signaling detection and transmission function of the user line and the bearer information between Time Division Multiplexing and IP under the control of the IMS access adaptation functional entity Mutual conversion function. The port parameters of the user terminal are set on the access gateway functional entity to realize user line signaling interaction between the user terminal and the access gateway functional entity.

The IMS access adaptation functional entity is traditional terminal access, and is an adaptation conversion functional entity of the IMS service network using SIP as session control signaling. It can control the access gateway functional entity through the media gateway control protocol and provide Direct or indirect translation between user signaling of traditional terminals and SIP signaling.

The E1 interface is the user network interface of the traditional terminal, here is the user line interface; the E2 interface can adopt the media gateway control protocol, such as H.248 or MGCP; E3 is the interface between the IMS access adaptation function entity and other components of the IMS service network , using the SIP protocol.

When a traditional terminal user performs IMS network user registration and authentication through the IMS access adaptation functional entity, even if the registration and authentication of the traditional terminal user fails due to failure of the home subscriber server (Home Subscriber Server) in the IMS network, the corresponding traditional terminal user The services signed by users cannot be used normally, but the service network system can provide emergency services for such traditional end users.

As shown in Figure 2, the access gateway functional entity does not block the port of the unsuccessfully registered user, and normal user line signaling interaction can be performed between the traditional terminal and the access gateway functional entity; it is set on the IMS access adaptation functional entity Unregistered users have the right to handle emergency services, and do not shield user signaling from unactivated user terminals; the access gateway functional entity can communicate the corresponding user line signaling information with the IMS access adaptation functional entity through the H.248 protocol Interaction, so the IMS access adaptation function entity can obtain the number dialed by the user. If the number is an emergency service number, the IMS access adaptation function triggers the IMS network to process the emergency service. The above specific processing flow is as follows:

1) The access gateway functional entity reports the user port activation to the IMS access adaptation functional entity through the H.248 protocol;

2) The IMS access adaptation function entity initiates the registration process of the corresponding user to the IMS service network;

3) The registration fails due to the failure of the HSS function in the IMS network;

4) The user off-hook event is transmitted to the access gateway functional entity through user signaling;

5) After the access gateway functional entity detects the user off-hook event, it reports the user off-hook event to the IMS access adaptation functional entity;

6) The IMS access adaptation functional entity instructs the access gateway functional entity to play the number collection tone and prepare for number collection;

7) The access gateway functional entity plays a sign-in tone to the user terminal;

8) The number dialed by the user is transmitted to the access gateway functional entity through the user line signaling;

9) The access gateway functional entity collects numbers, and then reports the collected user dialed numbers to the IMS access adaptation functional entity;

10) The IMS access adaptation function entity triggers emergency service processing to the IMS network according to the emergency service number dialed by the user.

Embodiment 2: The method for triggering emergency services by inactive users under the softswitch architecture of the present invention.

As shown in Figure 3, Figure 3 is a PSTN/ISDN service emulation system based on softswitch architecture, wherein:

The access gateway functional entity provides the access function of traditional terminal user lines, and configures necessary data for inactive users on the access gateway functional entity, so that the corresponding port can normally send and receive user line signaling and control it through media gateways such as H.248 The protocol and the softswitch perform user line signaling interaction; the access gateway functional entity provides user line signaling detection and transmission functions and the mutual conversion function of bearer information between TDM and IP under the control of the softswitch at the control plane.

The softswitch can control the functional entity of the access gateway through the media gateway control protocol, and can also perform functions such as call control and supplementary service processing; on the softswitch, at least emergency service permissions are set for inactive users.

The A1 interface is the user network interface of the traditional terminal, here is the user line interface; the A2 interface can adopt the media gateway control protocol, such as H.248 or MGCP; the A3 interface is the interface between the softswitch and other entities of the softswitch network, such as other softswitches , which can be protocols such as SIP-I and BICC.

The user's telephone line has been prepared, and the conditions for transmitting user line signaling between the user terminal and the network system have been met, but the user has not yet applied to the telephone service operator for the allocation of user numbers and opened services. The service network system should still be able to provide services for such traditional End users provide emergency services.

As shown in Figure 4, the specific processing flow is as follows:

1) The user off-hook event is transmitted to the access gateway functional entity through user signaling;

2) After the access gateway functional entity detects the user's off-hook event, it reports the user's off-hook event to the softswitch;

3) The soft switch instructs the media gateway to play the number collection tone and prepare for number collection;

4) The access gateway plays the number collection tone to the user terminal;

5) The number dialed by the user is transmitted to the access gateway functional entity through the user line signaling;

6) The access gateway functional entity collects numbers, and then reports the collected user dialed numbers to the softswitch;

7) The softswitch provides a specific calling user terminal number for the unactivated user terminal; since the physical location information of the user terminal corresponding to the calling user terminal number is configured in the softswitch network service provision system, the emergency call center can according to The number obtains the location information of the user; if the user dials the emergency service number, the emergency service processing is triggered to the softswitch network.

Embodiment three: the present invention triggers the method for the emergency service of shutting down the user under the narrowband PSTN/ISDN network.

As shown in Figure 5, Figure 5 is a narrowband PSTN/ISDN network, wherein:

Narrowband switches provide traditional end-user line access, user call control, and supplementary service processing functions. In addition to the existing system processing capabilities, the system processing capabilities for number collection and emergency service triggering for inactive users are added.

The B1 interface is the user network interface of the traditional terminal, here is the user line interface; B2 is the interface of the narrowband switch and other entities of the PSTN/ISDN network such as other switches, and can be a protocol such as ISUP.

The service network system should still be able to provide emergency services for such traditional end users when users handle temporary downtime services.

As shown in Figure 6, the specific processing flow is as follows:

1) Since the user handles the temporary shutdown service, the user is set as the shutdown user on the narrowband switch, and the permissions of the shutdown user are only emergency business permissions;

2) The user off-hook event is transmitted to the narrowband switch through user signaling;

3) The exchange processing system detects that the user is an inactive user, and executes the follow-up processing flow for collecting numbers and triggering emergency services for the inactive user, and the exchange plays a number collection tone to the user terminal;

4) The number dialed by the user is transmitted to the narrowband exchange through user signaling;

5) The exchange collects numbers, and if the user dials an emergency service number, triggers emergency service processing to the PSTN/ISDN network.

In addition, if the user's telephone line has been prepared, the user terminal and the narrowband PSTN/ISDN network have already met the conditions for transmitting user line signaling, but the user has not yet applied to the telephone service operator for the allocation of user numbers and opened services, the narrowband PSTN/ISDN The network system should still be able to provide emergency services to such traditional end users in a similar manner as described in FIG. 6 .

In a word, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1, a kind ofly it is characterized in that, may further comprise the steps for the un-activation user provides the method for urgency traffic:

A, Network provide between system and the un-activation user terminal carries out the subscriber's line Signalling exchange, and collects the number of un-activation user input;

The urgency traffic number that B, Network provide system to dial according to the un-activation user triggers urgency traffic and handles.

2, method according to claim 1 is characterized in that, further comprises among the step B: it is that unactivated user terminal distributes specific calling number that Network provides system, to obtain the positional information of user terminal.

3, method according to claim 2 is characterized in that, described Network provides system to comprise carrying aspect IAD functional entity disconnected from each other and control aspect call conversation control function entity;

In the described steps A, carry out the subscriber's line Signalling exchange between described IAD functional entity and the unactivated user terminal, and collect the number of un-activation user input, described number is reported described call conversation control function entity;

Among the described step B, the urgency traffic number that described call conversation control function entity is dialed according to the un-activation user triggers urgency traffic and handles, for described unactivated user terminal distributes specific calling number.

4, method according to claim 1 and 2 is characterized in that, described Network provides system to comprise carrying aspect IAD functional entity disconnected from each other and control aspect call conversation control function entity;

Further comprise before the described steps A: configuration un-activation user's user terminal port parameter on the IAD functional entity, configuration un-activation user's urgency traffic processing authority on call conversation control function entity;

Described steps A is to carry out the subscriber's line Signalling exchange between IAD functional entity and un-activation user terminal, and collects the number of un-activation user input, and described number is reported call conversation control function entity;

Described step B is the urgency traffic number of dialing according to the un-activation user at call conversation control function entity, triggers urgency traffic and handles.

5, the method for stating according to claim 4 is characterized in that, the step that steps A is collected the number of un-activation user terminal input specifically comprises:

The IAD functional entity detects the off-hook event of un-activation user terminal, and user's off-hook event is reported call conversation control function entity;

Described call conversation control function entity indicates described IAD functional entity to play the sound that collects the digits to described un-activation user terminal;

Described un-activation user terminal dialing numbers, the IAD functional entity carries out collecting number.

6, method according to claim 4 is characterized in that, described call conversation control function entity is that IMS inserts adaption function entity or soft switch.

7, the method for stating according to claim 5 is characterized in that, adopts between described IAD functional entity and the call conversation control function entity H.248 or the MGCP media gateway protocols communicates.

8, method according to claim 1 and 2 is characterized in that, it is the narrow band switching machine of bearing bed and key-course unification that described Network provides system.

9, method according to claim 8 is characterized in that, the step of collecting the number of un-activation user terminal input in the steps A specifically comprises:

The narrow band switching machine examination measures the off-hook event of un-activation user terminal, and described narrow band switching machine is play the sound that collects the digits to described un-activation user terminal;

Described un-activation user terminal dialing numbers, the narrow band switching machine carries out collecting number.

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