CN101494700B

CN101494700B - Method for providing business to circuit domain user by server, server and system

Info

Publication number: CN101494700B
Application number: CN2009100065518A
Authority: CN
Inventors: 李云飞; 朱浩鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-02-17
Filing date: 2009-02-17
Publication date: 2011-11-16
Anticipated expiration: 2029-02-17
Also published as: CN101494700A

Abstract

The embodiment of the invention discloses a method that an application server provides services for circuit domain users. The embodiment of the invention also discloses corresponding servers and communicating systems. The method includes: receiving the call requests of the circuit domain users; determining the AS business status of the circuit domain users; when the AS business status is activated, triggering the call to the corresponding AS, so that the AS provides AS business for the circuit domain users. By adopting the technical program of the embodiment of the invention, AS can provide business for the circuit domain users, which enriches the user experience of the circuit domain users.

Description

Method, server and system for providing service for circuit domain user by application server

Technical Field

The invention relates to the technical field of communication, in particular to a method for providing services for circuit domain users by an application server and a communication system.

Background

An Application Server (AS) is a service entity in an internet protocol Multimedia Subsystem (IMS) to provide services for IMS users. The simple flow of the AS to provide services to IMS users is: an IMS user sends a registration request to a network side, after an S-CSCF of the network side obtains the registration request of the IMS, Initial Filter Criteria (iFC) information is obtained from an HSS, and the iFC information comprises subscription information of the IMS user and an address of an AS providing corresponding service for the user; when IMS user makes call, the network side S-CSCF connects the call to AS according to the address of AS providing service for user in iFC, AS executes the operation providing service for user, then AS connects the call back to S-CSCF to continue processing.

The above is a simple description of the flow of the AS in the IMS to provide services for IMS users. The specific services provided by the AS for the user include: flexible number display, simultaneous vibration, sequential vibration, intelligent routing and the like.

The flexible number display means that when a calling user initiates a call, the AS flexibly displays the number of the calling in the called terminal according to the service signed in advance by the calling. For example: the same terminal office time of the calling user calls the called party, the number displayed on the called terminal is the office telephone number of the calling party, and if the calling party calls the called party in the non-office time, the private number of the calling party is displayed on the called terminal.

The simultaneous ringing service provided by AS means that when the AS providing service for the called party knows the called party of the called party, the call is simultaneously connected to a plurality of branches according to the subscription information of the called party, and after one branch answers, the other branches stop ringing. The AS provides a ringing service, i.e. a call is first connected to the first branch and if the first branch subscriber does not answer, the call is connected to the second branch in sequence. The service that the AS provides the intelligent route for the user means that: depending on the subscriber status, it is decided whether to connect the call to the called terminal, e.g. the called subscriber consists of a number of branches, and the call is only connected to the branch currently being on-line.

In the process of research and practice of the prior art, the inventor of the present invention finds that in the prior art, AS provides services for users in IMS, while IMS adopts packet switching technology, in the prior art, circuit domain users cannot activate and deactivate AS services, and AS provides services for the users.

Disclosure of Invention

The embodiment of the invention provides a method, a server and a system for providing services for circuit domain users by an application server, so that the circuit domain users can activate and deactivate AS services and enjoy the services provided by AS, and the experience of the circuit domain users is enriched.

The embodiment of the invention provides a method for providing services for circuit domain users by an Application Server (AS), which comprises the following steps:

receiving a call request of a circuit domain user;

determining the AS service state of the circuit domain user;

and when the AS service state is an activated state, triggering the call to a corresponding AS, so that the AS provides an AS service for the circuit domain user.

The embodiment of the invention also provides a method for notifying the user state of the circuit domain user, which comprises the following steps:

acquiring an AS service state of an application server of a circuit domain user;

acquiring the user state of the circuit domain user according to the AS service state of the user;

and informing the user state to a corresponding application server AS.

An embodiment of the present invention further provides a server, including:

a receiving unit, configured to receive a call request of a circuit domain user;

a determining unit, configured to determine an AS service state of the circuit domain user;

and the sending unit is used for triggering the call to the corresponding AS when the AS service is in the activated state according to the judgment result, so that the AS provides the AS service for the circuit domain user.

An embodiment of the present invention further provides a communication system, including:

a mobile switching center MSC, configured to receive a call request of a circuit domain user, determine an AS service state of the circuit domain user, and trigger a call to a corresponding AS when the AS service is in an activated state, so that the AS provides an AS service for the circuit domain user;

and the application server AS is used for receiving the call request and executing the operation of providing the service for the circuit domain user according to the preset subscription information of the circuit domain user.

In the embodiment of the invention, after MSCe receives the call request, the AS service state of the circuit domain user is determined, and when the AS service state is the activated state, the call is triggered to the corresponding AS, so that the AS provides the AS service for the circuit domain user, and the circuit domain user can enjoy the AS service, thereby enriching the user experience of the circuit domain user.

Drawings

FIG. 1 is a simplified flow diagram of a method provided in section A of an embodiment of the present invention;

fig. 2 is a simplified flowchart of a method for providing a service to a circuit domain calling party by an AS according to a part B of the embodiment of the present invention;

fig. 3 is a flow diagram of a method for providing a service to a called user in a circuit domain by an AS according to a part C of the embodiment of the present invention;

fig. 4 is a simplified flowchart of a method for activating and deactivating an AS in a CDMA system according to embodiment D of the present invention;

fig. 5 is a simplified flowchart of a method for activating and deactivating an AS in a GSM system according to embodiment D of the present invention;

fig. 6 is a simplified flowchart of a method for acquiring a circuit domain user status by an AS according to a part E of the present invention;

fig. 7 is a simplified flowchart of another method for acquiring a circuit domain user status by an AS according to a part E of the embodiment of the present invention;

fig. 8 is a simplified flowchart of a method for providing a service to a circuit domain user by using an AS according to a second embodiment of the present invention;

fig. 9 is a simplified flowchart of a method for providing a service to a circuit domain user by using an AS according to a third embodiment of the present invention;

fig. 10 is a simplified flowchart of a method for activating or deactivating an AS by a circuit domain user according to a fourth embodiment of the present invention;

fig. 11 is a simplified flowchart of a method for providing, by an AS, a service for a circuit domain user according to a fifth embodiment of the present invention;

fig. 12a is a logical configuration diagram of a server according to a sixth embodiment of the present invention;

FIG. 12b is a logical block diagram of another server according to a sixth embodiment of the present invention;

fig. 13 is a logical block diagram of a communication system according to a seventh embodiment of the present invention;

fig. 14 is a logical configuration diagram of a communication system according to an eighth embodiment of the present invention;

fig. 15 is a logical block diagram of a communication system according to a ninth embodiment of the present invention;

fig. 16 is a logical configuration diagram of a communication system according to a tenth embodiment of the present invention.

Detailed Description

The embodiment of the invention provides a method for providing services for circuit domain users by an application server. The embodiment of the invention also provides a corresponding communication system. The following are detailed below.

Example one

For convenience of description, a Code-Division Multiple Access (CDMA) communication system is taken AS an example in the present embodiment, and for a circuit domain user in another communication system to enjoy services provided by the AS, reference may be made to the implementation in this embodiment. To facilitate understanding of the methods provided by the present embodiments, the embodiments are described in several sections.

Example part A

Before describing the embodiments, before a CDMA terminal user needs to use network resources, it needs to register in a CDMA communication system, and the types of registration need to be performed may include: power-on registration, location change location registration, distance-based location registration, parameter change location registration, periodic location registration, power-off location registration, and the like. Wherein, the circuit domain user is one of CDMA terminal users.

If the cs domain user wants to enjoy the service provided by the AS, the network side needs to obtain the address of the AS providing the service for the cs domain user, so the location registration method for the cs domain user is described below, and the network side can obtain the address of the AS providing the service for the cs domain user by using the location registration method.

A method for circuit switched domain user location registration, as shown in fig. 1, includes:

step A1: BSC sends Location on Updating Request to MSC;

prior to step a1, the location registration method may further include: the terminal sends a location registration request to a cell base station where the terminal is located, and the base station sends the location registration request to the BSC. The process in which the terminal sends a location registration request until the request is received by the BSC is prior art and is not described in detail here.

Step A2: after receiving the information of the Location registration request sent by the BSC, the MSC sends a REGNOT Location registration notification request to a Home Location Register (HLR) of the user, wherein the information at least includes an identifier of the terminal, so that the HLR can query subscription information of the user using the terminal in the HLR;

it should be noted that, the procedure of REGNOT sent by the MSC to the HLR and the Location on Updating Request sent by the BSC to the MSC is equivalent to that the MSC transparently transmits the Location registration Request sent by the BSC to the HLR, i.e. the Location registration notification Request and the Location registration Request are considered to be the same.

It should be noted that the MSC is usually combined with a Visitor Location Register (VLR) in physical implementation to form a device, and is simply referred to as the MSC, that is, the MSC usually has the function of the VLR. The detailed description of the MSC can also be referred to in the description of the embodiment section D, and it should be noted that the understanding of the MSC can be referred to the prior art.

Step A3: the HLR inquires the signing information of the user in the HLR, if the circuit domain user signs the AS service and the AS service record is in an activated state, the AS information contained in the signing information at least comprises information related to the address of the AS providing the service for the circuit domain user and information whether the AS service is activated;

in step a3, if the AS service of the circuit domain user is in a deactivated state or the circuit domain user does not sign the AS service, the queried subscription information may not include the AS information.

Step A4: HLR sends the inquired subscription information to MSC, judges whether the subscription information contains AS information, if yes, it can determine the AS service is activated; or judging whether the activation mark in the AS information in the subscription information is activated, if so, determining that the AS service state of the circuit domain user is an activation state;

in order to implement the purpose that the AS provides the AS service for the circuit domain user, in the information sent by the HLR to the MSC in step a4, information about the address of the AS providing the service for the circuit domain user and information about whether the AS service of the user is activated need to be included. Usually, if the AS service of the user is not activated, the message sent by the HLR to the MSC does not carry AS information, i.e. the message does not carry information such AS whether the AS service is activated, the identifier of the AS or the address of the AS. And the MSC can judge that the AS service is not activated according to the AS service information which is not acquired.

Wherein, the information related to the address of AS providing service for the circuit domain user can be AS identification, and the MSC configures the IP address corresponding to the AS identification; the AS address may also be returned directly.

Step A5: after receiving the subscription information sent by the HLR, the MSC sends location registration Accept (location updating Accept) information to the BSC.

The returned AS does not necessarily include its address information, but may also include an AS identifier, and the MSC configures the corresponding IP address. The AS address may also be returned directly.

AS described above in the description of steps a1 to a5, when the MSC registers the location of the terminal, the MSC acquires the subscription information of the user in the circuit domain, and if the subscription information includes the AS subscription information of the user, the MSC records the subscription information. It should be understood that the MSC and HLR are entities in the circuit domain.

For the description of the method for providing services for the cs user by the application server AS provided in this embodiment, the following description is made from the perspective of the calling user and the called user.

Example part B

A method for providing service for a circuit domain calling subscriber by an AS is shown in fig. 2, comprising:

step B1: the BSC sends a call request CM Service Req to the MSCe1 according to the received call request;

it should be noted that, before step B1, the method further includes: the terminal sends a call request, and the cell where the terminal is located receives the call request and sends the call request to the BSC.

Step B2: MSCe1 receives the call request sent by BSC, judges whether the AS service of the calling user is activated according to the preset information, if yes, executes step B3;

the information preset in step B2 may be information related to the AS service that is saved when the circuit domain user performs location registration, such AS information on whether the AS is activated and information on an AS address.

Step B3: the MSCe1 sends a request for providing service to the caller to the AS according to the address of the AS, i.e. the request may specifically be a call INVITE;

step B4: the AS executes corresponding operation in the subscription information according to the preset subscription information of the calling subscriber, namely executing operation for providing service for the calling subscriber;

the corresponding operation in the signing information in step B4 may be flexible display of a calling number, etc.

Step B5: the AS connects the call back to MSCe, which may specifically be sending a call INVITE.

After completing step B6, the processing of the call recipient continues by MSCe.

The steps B1 to B5 realize that the AS provides service for the circuit domain calling user. If the AS providing service for the called subscriber is the same AS the AS providing service for the calling subscriber, the method may further include, after step B4:

step B6: the AS judges whether the called user activates the AS service according to preset called subscription information, if so, the step B7 is executed;

step B7: and the AS performs the operation of providing service for the called user.

The steps B1 to B7 realize that the same AS provides services for the circuit domain calling subscriber and the circuit domain called subscriber. The method is particularly suitable for providing services for users in enterprises.

Example part C

A method for providing services to a called user in a circuit domain by an AS is shown in fig. 3, including:

step C1: after a calling end office MSC (namely MSCe1) or a gateway office receives a call request, acquiring subscription information of a called user from an HLR to which the called user belongs;

the specific method for acquiring the address of the AS by the MSCe1 in the step C1 is shown in fig. 3, and includes:

step d 1: MSCe1 sends a request for obtaining the position information of the called user to the HLR to which the called user belongs in the circuit domain;

the request sent by MSCe1 in step d1 may be included in the location request LOCREQ.

Step d 2: when the HLR to which the called user belongs in the circuit domain returns the position request response, the AS information can be carried. The HLR may indicate the AS service status by whether or not the AS information is carried in the return message: if the AS information is carried, the AS service is activated, and if the AS information is not carried, the AS service is not activated; the status information may also be added, and if the activation identifier in the carried AS information is activated, it indicates that the AS service is in an activated status, and if the activation identifier in the carried AS information is not activated, it indicates that the AS service is not activated.

Step d 3: and the HLR to which the called user belongs in the circuit domain sends the searched result to the MSCe 1.

The information sent by the HLR to which the circuit domain called subscriber belongs in step d3 may specifically be included in the Iocreq message.

The above steps d1 to d3 realize that MSCe1 acquires the address of the AS serving the called party.

Step C2: MSCe1 judges whether AS service of called user is activated according to the information obtained from HLR, if yes, step C3 is entered;

step C3: MSCe1 according to the obtained address of AS providing service for the called party (the address can directly carry AS address information in the AS information returned by HLR, or the HLR returns AS mark, MSC configures IP address corresponding to AS mark), sends request for providing service for the called party to the AS; the request for providing the service to the called party may specifically be included in the INVITE message sent by MSCe1 to the AS.

Step C4: after receiving the request for providing service for the called party, the AS executes the operation for providing service for the called party;

step C5: the AS connects the call back to MSCe1, i.e. sends INVITE to MSCe 1.

Through the description of the steps C1 to C5, the AS can provide services for the circuit domain called user. The above description is a method for providing services for a called user in a circuit domain by an AS, and in fact, there are other methods that can also implement a method for providing services for a called user in a circuit domain by an AS, see the following examples.

Another AS provides service for called user in circuit domain. This method differs from the method provided in embodiment C above in that: in the method, the request for sending the notification AS to provide service for the called party is executed by the MSCe (abbreviated AS MSCe2) to which the called party belongs, instead of the MSCe1 described in the above description. The starting execution time of the method may be after the call is connected to the MSCe2 where the called user is located, and the MSCe2 determines whether to connect the call to the AS to process the called service according to the service state of the called user AS, and the description herein should not be understood to limit the method provided by this embodiment.

Another method for providing service for circuit domain called user by AS includes:

step F1: MSCe (MSCe 2 for short) of called party sends call invitation INVITE to AS according to preset AS service state information of called party;

the information of the AS preset in step F1 may be information of an AS that is obtained by the MSCe2 when the called user registers the location and provides a service to the called user, where the information includes information related to obtaining an AS address and whether the AS is activated. The information related to the obtained AS address may be the IP address of the AS directly, or the identifier of the AS obtained by MSCe2 from the HLR, and the IP address of the AS corresponding to the identifier of the AS is obtained according to a preset list.

Step F2: after receiving the request for providing service for the called party, the AS executes the operation for providing service for the called party;

step F3: the AS sends the call INVITE to MSCe2, and the connection process is continued by MSCe 2.

The steps F1 to F3 implement the method for providing the service for the called user in the circuit domain by As.

The embodiment of the invention also provides a method for providing services for called users in a circuit domain by the AS, which is suitable for being used when a calling user and a called user belong to different communication systems, for example, the calling user and the called user respectively belong to a Public Switched Telephone Network (PSTN) communication System and a CDMA communication System, or the PSTN communication System and a Global System for mobile Communications (GSM), and the calling user and the called user pass through gateway equipment during communication, so that the service provided by the AS for the called user can be executed by the gateway. The method may be implemented as described above with reference to steps C1 to C4, wherein the operations performed by MSCe1 are replaced by gateway equipment. The method can also be used for providing services for the called user in the circuit domain by the AS.

Example part D

This section of the present embodiment provides a method for activating and deactivating an AS between an MSCe and an HLR where a subscriber location registration is located. Referring to fig. 4, the method includes:

step X1: the BSC sends a call request (CM Service Req) message to the MSCe;

wherein, before step X1, the method may further comprise: the user terminal sends a call request to the network side, the call request can be that the user dials a special number, the call request is sent to the BSC through the base station, and the process can refer to the prior art;

step X2: MSCe judges the number dialed by the user is a special number, if yes, step X3 is entered;

step X3: sending a feature request FEATREQ message to HLR;

step X4: after receiving the FEARTEQ message, the HLR sends a feature request response FEATREQ to the MSCe, and the FEATREQ is sent to the MSCe as a response of receiving the FEATREQ;

step X5: according to the received number and the number meaning configured in the HLR, if the AS service is activated or deactivated, recording the AS service state of the user AS activated or deactivated;

step X6: HLR sends qualification indication QUALDIR including result information of activating or deactivating AS service to MSCe;

step X7: after receiving the QUALDIR, the MSCe sends a qualification indication response qualidir to the HLR.

It should be noted that the user may activate and deactivate the AS service by dialing a special number. Other means are possible, such as sending a short message for special content. And the MSC judges the content of the short message AS a special number, and triggers the operation of activating and deactivating the AS service to the HLR.

Through the above description of step X1 to step X7, the activation or deactivation of the AS service for the user is completed on the network side. When the user sends a call, the MSCe where the user is located judges whether to trigger the call to the AS according to the saved AS service state. After the circuit domain user terminal and the network side execute the operation in the part D of the embodiment, the circuit domain user can flexibly select whether to use the service provided by the AS according to the self requirement. It should be understood that the particular featurecodes used in performing the activation or deactivation of the AS are illustrated for CDMA communication systems, and should not be construed AS limiting the invention, AS for other communication systems, there may be different operation codes.

It should be noted that the mobile switching center MSC is divided into two network entities after adopting a soft switch architecture, that is, the mobile switching center emulation MSCe and the media gateway MGW, which may also be referred to as a mobile switching center server and a media gateway MGW. Wherein, the MSCe can control one or more MGW through the bearer control protocol H.248/MGCP. The MSCe is mainly responsible for call control and mobility management. The MGW is responsible for the circuit and IP voice packet data switching functions, is a gateway for circuit bearer under circuit switching and media stream under IP switching, and can realize intercommunication and switching of voice, data and video between a circuit switching network and an IP switching network (or within the same switching network). In the GSM system, the name of a mobile switching center Server is MSC Server; in a CDMA system, the name of the server is MSCe. Therefore, in all embodiments throughout the text, the technical solution of the embodiment of the present invention is mainly described by using a CDMA system, and the MSCe is mainly used as an entity of a network, but it should not be understood as a limitation to the technical solution provided by the embodiment of the present invention, and the MSCe may be replaced by an MSC Server in a GSM system, and the MSC Server performs similar processing to the MSCe. The method for realizing the service provided by the AS used by the circuit domain user in the two systems is based on similar conception.

For GSM communication systems, the activation or deactivation of the AS may be performed using USSD streaming operations, which are similar in flow. The following describes a method for implementing the activation or deactivation operation of the AS service in the GSM system.

Referring to fig. 5, a method for activating or deactivating an AS in a GSM system includes:

step Y1: a media soft switching center Server (MSC Server) receives an unstructured supplementary service data Request (USSD Request) which is sent by a BSC and comprises information for activating or deactivating AS service;

step Y2: MSC Server sends USSD Request to HLR that user belongs to;

step Y3: the HLR receives the USSD Request, and sends a Response of receiving the USSD Request to the MSC Server, namely sends a USSD Response to the MSC Server;

step Y4: MSC Server receives the USSD Response, and forwards the USSD Response to BSC;

step Y5: the HLR records the AS service state of the circuit domain user AS an activated or deactivated state according to the activated or deactivated AS service information included in the USSD Request;

step Y6: the HLR sends qualification indication including activated or deactivated result information to the MSCServer;

step Y7: after receiving the qualification indication, the MSC Server sends a qualification indication response to the HLR.

The above steps Y1 to Y6 implement an activation or deactivation operation of the AS service in the GSM system.

Example part E

This section of this embodiment provides a method for acquiring the status of the cs user by the AS. The method for the AS to acquire the state of the circuit domain user can be that after the circuit domain user finishes position registration, the MSCe sends the starting-up state or the shutdown state of the user to the AS; or after the circuit domain user completes the activation or deactivation of the AS service, the activated AS service is mapped to be online or started, and the deactivated AS service is mapped to be offline or switched off. The following are each specifically described.

Referring to fig. 6, after the location registration of the circuit domain user is completed, the MSCe sends the power-on or power-off state of the user to the AS, so that the AS can obtain the user state of the circuit domain, and the AS can provide services according to the user state, such AS an intelligent routing service provided by the AS for the user. Steps E1 to E6 in the method correspond to steps a1 to a5 in part a of the present embodiment, and reference may be made to the description in part a of the present embodiment;

step E6: MSCe according to the obtained AS address, the power-on or power-off state of the circuit domain user is included in the REGISTER message and sent to AS; if the user is in a starting-up state and the AS service state is activated, informing the AS that the user state is the starting-up of the user; if the user is in a power-on state and the AS service state is deactivated, informing the AS that the user state is the power-off state of the user; and if the user is in the power-off state, informing the AS that the user state is the power-off state of the user.

Step E7: after receiving the REGISTER message, the AS stores the user state of the circuit domain user;

step E8: the AS sends a response 200OK to the MSCe indicating that the AS informs the MSCe that the AS received the REGSTER message.

Through the descriptions of the steps E1 to E8, the AS acquires the state of the cs domain user, and the AS can provide services to the user more accurately according to the acquired state of the cs domain user. The method may further comprise step E9 and step E10 as follows:

step E9: MSCe sends NOTIFY message to AS, the NOTIFY message contains more detailed information of user terminal, such AS online and offline state of the circuit domain user; if the user is in a starting-up state and the AS service state is activated, informing the AS that the user state is user starting-up or user online; if the user is in a power-on state and the AS service state is deactivated, informing the AS that the user state is the power-off state or the offline state of the user; and if the user is in a power-off state, informing the AS that the user state is the power-off state or the offline state of the user.

Step E10: after receiving the NOTIFY message, the AS sends a response 200OK to the MSCe, and the response identifies that the AS receives the NOTIFY message.

Referring to fig. 7, steps G1 to G67 of the method are similar to steps X1 to X7 in embodiment D, and refer to the descriptions in steps X1 to X7 in embodiment D;

step G8: MSCe according to the saved information of user activated or deactivated AS service and AS address, sends REGISTER message to AS;

the REGISTER message includes a power-on or power-off state of the circuit domain user, where the power-on or power-off state is a user state obtained by the MSCe according to the AS service state of the user, such AS: if the user is in a starting-up state and the AS service state is activated, the MSCe informs the AS that the user state is user starting-up or user online; if the user is in a power-on state and the AS service state is deactivated, the MSCe informs the AS that the user state is the power-off state or the offline state of the user; and if the user is in a power-off state, informing the AS that the user state is the power-off state or the offline state of the user.

Steps G9, G10 are similar to steps E8, E9, reference may be made to the description of steps E8, E9; the method may further comprise: step G11 and step G12, the description of which may refer to step E10 and step E11. The addition of step G10 may make the AS obtain more user status information, and better provide service for the user. Such as: if the user is in a starting state and the AS service state is activated, informing the AS that the user state is user starting or user online; if the user is in a power-on state and the AS service state is deactivated, informing the AS that the user state is the power-off state or the offline state of the user; and if the user is in a power-off state, informing the AS that the user state is the power-off state or the offline state of the user.

Through the above description of steps G1 to G8, the MSCe sets the user status in the AS according to the service status of the circuit domain user AS. Such as: if the user is in a starting-up state and the AS service state is activated, informing the AS that the user state is user starting-up or user online; if the user is in a power-on state and the AS service state is deactivated, informing the AS that the user state is the power-off state or the offline state of the user; and if the user is in a power-off state, informing the AS that the user state is the power-off state or the offline state of the user. The AS can more accurately provide services for the circuit domain user by acquiring the user state information.

Through the above description of the first embodiment of the present invention, it can be seen that, in order to enable the MSCe to transfer a call to the AS and enable the AS to provide a service for a user, an address of the AS is required in the MSCe, where the address of the AS is obtained from information about the address of the AS sent from the HLR after the user completes location registration, for example, the MSCe directly obtains the IP address of the AS from the HLR, or the MSCe obtains the identifier of the AS from the HLR, and obtains the IP address of the AS corresponding to the identifier of the AS according to information preset by the MSCe; part B and part C of the embodiment of the invention show that the AS can provide service for circuit domain users (including calling users and called users); through the description of part D of the embodiment of the invention, a user can flexibly select whether to use the service provided by the AS according to the self requirement; through the description of part E of the embodiment of the invention, the AS acquires the state information of the user, and provides more accurate service and better user experience for the user.

Example two

The present embodiment provides a method for providing a service for a circuit domain user by using an AS of an application server, which is similar to the method provided in the first embodiment, and in the first embodiment, a description is specifically provided for a method for providing a service for a circuit domain user by an AS in a CDMA communication system, while in the present embodiment, a description is mainly provided for an operation of activating and deactivating an AS in a GSM communication system, and reference may be made to the description in the first embodiment for a method for providing a service for a circuit domain user by an AS in a GSM communication system.

Referring now to fig. 8, a method for activating and deactivating an AS in a GSM communication system includes:

step H1: the BSC to which the terminal belongs receives a request for activating or deactivating the AS Service, wherein the request can be contained in an Unstructured Supplementary Service Data (USSD) request;

step H2: after receiving the request for activating or deactivating the AS service, the BSC which the BSC belongs to forwards the request for activating or deactivating the AS service to the MSC Server; the request may be contained in an Unstructured Supplementary Service Data (USSD) request;

step H3: after receiving the request, MSC Server forwards the request to HLR to which the user belongs;

step H4: after receiving the request, the HLR to which the user belongs sends a response to the MSC Server to inform the MSC Server that the HLR receives the USSD request, wherein the response is a USSD response;

step H5: after receiving the response, the MSC forwards the response to the BSC to which the user belongs;

step H6: the HLR to which the user belongs records the AS service state of the user AS activated or deactivated;

step H7: sending an activation or deactivation notification to the MSC Server, which activation or deactivation notification may be included in the eligibility indication;

step H8: after receiving the activation or deactivation notification, the MSC Server sends a response, which may be a qualification indication response, to the HLR to which the subscriber belongs.

By the above steps H1 to H8, it can be realized that the circuit domain user activates or deactivates the AS in the GSM communication system.

Similar to the first embodiment, the method for providing services for the circuit domain user by the AS in the GSM communication system acquires the AS address from the HLR when the MSC Server performs the position registration operation for the user; according to the obtained address of the AS, the MSC Server informs the AS to provide service for the circuit domain user (including the calling user and the called user); the user can flexibly select whether to use the service provided by the AS according to the self requirement; and the AS provides more accurate service and better user experience for the user according to the acquired state information of the user. The method for acquiring information of the activation or deactivation state of the user by the AS may refer to the description in the first embodiment.

EXAMPLE III

The embodiment provides a method for providing services for circuit domain users by an application server AS. The method aims at the condition that a plurality of AS provide services for the same circuit domain user. The following description is directed to a method for providing services for a circuit domain user by two ASs, where the two ASs include: one to handle the user state as (presence as) and one to handle the call as (call as). Referring to fig. 9, the method includes:

steps J1 to J6 of the method are similar to steps E1 to E6 in the embodiment part E, except that in step J5, the HLR belonging to the subscriber sends to the MSCe the queried subscription information including at least the addresses of the Presence AS and the Call AS;

step J7: MSCe according to the acquired address of Presence AS, including the circuit domain user state (i.e. power-on or power-off state) in the REGISTER message and sending to Presence AS;

step J8: after the Presence AS receives the REGISTER message, it sends a response 200OK to MSCe, indicating that the AS informs MSCe that it received the REGISTER message.

Step J9: presence AS records user status.

The above steps J1 to J9 realize that one Presence AS provides service for the user, and when the user makes a call, the user and the Presence AS can obtain the service provided by the calling AS. The specific operation comprises the following steps:

step J10: the user sends a call request to the BSC, and then the call request is sent to the MSCe by the BSC, wherein the execution process can refer to the prior art;

step J12: after receiving the call request, the MSCe judges whether the user activates the AS service, if so, the step J12 is carried out;

step J13: MSCe sends the request for providing service for user to the Call AS according to the Call AS address obtained during location registration;

step J14: and after receiving the request, the Call AS executes the operation of providing the service for the user.

The method further comprises the following steps:

step J15: after the Call AS finishes the service, the Call is connected back to the MSCe for continuous processing.

Through the above description of steps J1 to J15, a method is implemented in which Presence AS and Call AS serve the same circuit domain user, and in fact, in response to the situation that more than two AS or multiple AS serve the same Call AS each other, a request may be sent to each AS to enjoy the service provided by the AS, specifically according to the information of the AS obtained from the HLR to which the user belongs. The method of operation thereof can be easily obtained from the description of the present embodiment.

Example four

The embodiment provides a method for activating or deactivating an AS by a circuit domain user. The method is different from the embodiment part D, in the method provided by the embodiment part D, the MSCe can directly communicate with the AS to realize that the AS provides service for the circuit domain user; in the embodiment, the MSCe indirectly communicates with the AS through other entities in the IMS, so that the AS provides services for the circuit domain user.

The method is divided into a front execution step and a rear execution step according to the execution time sequence of the method. The previous steps of the method may be similar to steps X1 to X6 in embodiment D, and refer to the descriptions of steps X1 to X6 in embodiment D; it can also be similar to step H1 to step H7 in example two, and refer to the description of step H1 to step H7 in example two.

The method of performing the latter part of the method may be the same, as shown in fig. 10, which shows the front part of the method as steps corresponding to steps X1 to X6 in embodiment part D, and the latter part of the method comprises:

step K7: the MSCe sends a register REGSTER request to a corresponding query Call Session Control Function entity (I-CSCF) according to the acquired I-CSCF address information (the address information can be directly returned by the HLR or an identifier can be returned by the HLR, and the MSC configures corresponding IP address information), wherein the RGSTER request contains user startup or shutdown information;

step K8: after receiving the RGSTER request, the I-CSCF acquires the address of a service call session control function entity (S-CSCF, servingCSCF) from the HSS according to the number of the circuit domain user contained in the RGSTER request;

step K9: the I-CSCF sends the REGSTER request to the S-CSCF according to the acquired address of the S-CSCF;

step K10: after receiving the REGISTER registration request, the S-CSCF acquires the subscription information of the circuit domain user from the HSS to which the user belongs, wherein the subscription information at least comprises the address of an AS providing services for the circuit domain user;

step K11: the S-CSCF sends the REGSTER request to the AS according to the address of the AS acquired in the step K10;

step K12: and after receiving the REGSTER request, the AS stores the user state of the user.

The method provided by the embodiment may further include:

step K13: the AS sends a response to the S-CSCF, which may include a response to the AS receiving the REGSTER request;

step K14: after receiving the response, the S-CSCF sends the response to the I-CSCF;

wherein, the response sent in step K13 may be a response sent by the S-CSCF forwarding AS.

Step K15: after the I-CSCF receives the response, the response is forwarded to the MSCe. .

The method may further comprise:

step K16, MSCe1 sends an eligibility indication response to the HLR after receiving the eligibility indication.

The preceding part of the method provided for this embodiment is similar to steps H1 to H7 in example two, and the following part of the method provided for this embodiment is similar to steps K7 to K15 described above. This execution flow may be a method of activating or deactivating an AS in a particular GSM communication system. The specific implementation method can be easily obtained by referring to example two and steps K7 to K15.

Through the above description of the present embodiment, the method is directed to the CDMA communication system and the GSM communication system, respectively. From the above description of the present embodiment, it can be seen that the basic flow of activating or deactivating an AS by a circuit domain user is similar in both the CDMA communication system and the GSM communication system, and the difference is only that the message flow corresponding to different communication systems is different, but the core idea is based on the same concept. Therefore, the above description of the present embodiment should not be construed as limiting the present embodiment of the invention.

EXAMPLE five

The embodiment provides a method for providing services for circuit domain users by an AS. In the method, the MSCe indirectly communicates with the AS through other entities in the IMS, and the AS provides services for the circuit domain user. Referring to fig. 11, the method includes:

step L1: MSCe receives the call request;

step L2: MSCe judges whether the user activates AS service according to the AS service state of the user, if yes, the step L3 is executed;

step L3: MSCe sends call INVITE to MGCF; MSCe can also directly send call INVITE to I-CSCF

The MGCF generally serves as a call gateway between the circuit domain and the IMS.

Step L4: MGCF sends INVITE to I-CSCF;

step L5: the I-CSCF acquires the address of the S-CSCF from the HSS according to the user number;

step L6: the I-CSCF sends the call invitation INVITE to the S-CSCF according to the acquired address of the S-CSCF;

step L7: the S-CSCF sends the call invitation INVITE to the AS according to the subscription information of the user;

if the subscription information of the circuit domain user is not stored in the S-CSCF, the S-CSCF is also required to acquire the subscription information from the HSS to which the user belongs.

Step L8: and after receiving the INVITE, the AS executes the service operation provided for the user.

The steps L1 to L8 realize indirect communication between the AS and the MSCe, thereby achieving the purpose that the AS provides services for circuit domain users. The execution method is generally applied to the case that the MSCe interacts with the AS through IMS.

EXAMPLE six

An embodiment of the present invention provides a server, as shown in fig. 12a, where the server includes: a receiving unit 100, a determining unit 200 and a transmitting unit 300.

The receiving unit 100 is configured to receive a call request of a circuit domain user;

a determining unit 200, configured to determine an AS service state of the circuit domain user;

a sending unit 300, configured to trigger the call to a corresponding AS when the AS service is in an active state, so that the AS provides the AS service for the circuit domain user.

Optionally, the determining unit 200 may further include:

a first obtaining unit 210, configured to obtain subscription information of the circuit domain user from a called home location register HLR, or obtain subscription information from a location registration response obtained from the circuit domain user home location register HLR;

a first determining unit 220, configured to determine whether the subscription information includes AS information;

a first determining unit 230, configured to determine, when the determination result in the first determining unit 220 is that the subscription information includes AS information, that an AS service state of the user in the circuit domain is an active state;

therefore, the sending unit is further configured to trigger the call to the corresponding AS according to the AS address in the AS information; or, the sending unit is further configured to obtain an address of the AS according to the AS identifier in the AS information; and triggering the call to the corresponding AS according to the obtained AS address.

Alternatively, referring to fig. 12b, the receiving unit 100 and the transmitting unit 300 may be similar to the receiving unit 100 and the transmitting unit 300 in fig. 12a, and reference may be made to the description of fig. 12 a. The determining unit 200 may further include: a second acquisition unit 201, a third acquisition unit 202, a second acquisition unit 203, and a second confirmation unit 204. Wherein,

a second obtaining unit 201, configured to obtain subscription information of the circuit domain user from a called home location register HLR, or obtain subscription information from a location registration response obtained from the circuit domain user home location register HLR;

a third obtaining unit 202, configured to obtain AS information in the subscription information;

a second obtaining unit 203, configured to determine whether an activation identifier in the AS information is activated;

a second determining unit 204, configured to determine, when the determination result in the second obtaining unit 203 is yes, that the AS service state of the user in the circuit domain is an activated state;

Through the above description, the server provided in the embodiment of the present invention can trigger the call request to the corresponding AS, so that the circuit domain user can acquire the AS service.

It should be noted that, the receiving unit 100 is further configured to receive a location registration request of the circuit domain user, and receive a location registration response sent by the HLR, where the location registration response includes subscription information of the circuit domain user;

the specifically determining the AS service state in the determining unit 100 includes: acquiring subscription information in the location registration response; judging whether the subscription information contains AS information or not, and if so, determining that the AS service state of the user of the circuit domain is an activated state; the triggering the call to the corresponding AS comprises: triggering the call to a corresponding AS according to the AS address in the AS information; or, according to the AS mark in the AS information, acquiring the address of the AS; triggering the call to a corresponding AS according to the obtained AS address;

alternatively, specifically confirming the AS service status in the determining unit 100 may be: acquiring subscription information in the location registration response; acquiring AS information in the subscription information, judging whether an activation identifier in the AS information is activated, and if so, determining that the AS service state of the user of the circuit domain is an activated state; the triggering the call to the corresponding AS comprises: triggering the call to a corresponding AS according to the AS address in the AS information; or, according to the AS mark in the AS information, acquiring the address of the AS; triggering the call to a corresponding AS according to the obtained AS address;

therefore, the sending unit 300 is further configured to send the location registration request to the subscriber home location register HLR.

It should be further noted that the sending unit 300 is further configured to send information of the power-on or power-off state of the circuit domain user to the AS according to the AS identifier or the AS address in the subscription information.

It should be further noted that, the receiving unit 100 is further configured to receive a request for activating or deactivating the AS by the circuit domain user, and receive qualification indicating information containing an activation or deactivation result sent by the HLR; therefore, the sending unit 300 is further configured to send the request to the HLR of the subscriber home location register where the circuit domain subscriber is located.

Through the above description of the server provided in the embodiment of the present invention, it can be known that the server also participates in completing location registration for a circuit domain user, and notifies the corresponding AS of the activation or deactivation state of the AS service.

EXAMPLE seven

The present embodiment provides a communication system, as shown in fig. 13, including: a mobile switching center MSC10a and an application server 10 b.

A mobile switching center MSC10a, configured to receive a call request of a circuit domain user, determine an AS service state of the circuit domain user, and trigger a call to a corresponding AS when the AS service is in an activated state, so that the AS provides the AS service for the circuit domain user;

and the application server AS10b is configured to receive the call request, and execute an operation of providing a service for the circuit domain user according to preset subscription information of the circuit domain user.

The communication system comprising the mobile switching center MSC10a and the application server 10b realizes that the circuit domain user can enjoy the service of the AS service, and enriches the user experience of the circuit domain user.

It is also to be understood that the communication system may further include: a home location register HLR; the HLR is used for receiving the position registration request of the circuit domain user sent by the MSC, inquiring the subscription information of the circuit domain user and sending the position registration response containing the subscription information to the MSC;

therefore, the MSC is further configured to receive a location registration request of a circuit domain user, send the location registration request to a home location register HLR, and receive a location registration response sent by the HLR, where the location registration response includes subscription information of the circuit domain user.

As is apparent from the above description, the communication system can also implement a location registration function for a circuit domain user.

It should be further understood that the HLR in the communication system is further configured to receive a request, sent by the MSC, for activating or deactivating the AS by the circuit domain user, record that the AS is in an activated or deactivated state, and send qualification indicating information including an update result to the MSC;

therefore, the MSC is further configured to receive a request for activating or deactivating an AS of a circuit domain user, send the request to the HLR, request the HLR to update an AS service activation state of the circuit domain user, receive qualification indicating information including an update result sent by the HLR, and send the update result to the AS according to an AS identifier or an AS address in the subscription information.

Through the description of the two sections of characters, the communication system can realize the activation and deactivation of the AS service state, and is convenient for a user to control the AS service.

The seventh embodiment is a general description of a communication system provided by the embodiments of the present invention, and a communication system is specifically described below with reference to the eighth, ninth, and tenth embodiments.

Example eight

The present embodiment provides a communication system, as shown in fig. 13, including: the base station controller BSC10, the mobile switching center emulated MSCe20 and the home location register HLR 30. It should be understood that the base station controller BSC10 corresponds to a transparent transmission device between the circuit domain user terminal and the MSCe20, and therefore, in the seventh embodiment, the device may not be included. For the convenience of understanding, the present embodiment is described in detail, and thus, the nine and ten embodiments are similarly understood.

It should be noted that, an example of a communication system provided in this embodiment is a CDMA system, and therefore, an entity in a network includes an MSCe, and if the system is a GSM system, the entity is an MSC Server. The core concepts of the specific execution method are similar when the MSCe or the MSC Server provides the AS service for the circuit domain user. This should be understood throughout.

Wherein, BSC10 receives the position register Request of the circuit domain user terminal, BSC constructs the position register Request Location Updating Request and sends it to MSCe 20;

after receiving the location registration request of the BSC10, the MSCe20 sends a location registration notification request to the HLR30 to which the user belongs by the MSCe 20;

after receiving the location registration notification request, the HLR30 queries the subscription information of the circuit domain user from itself, where the subscription information at least includes the service provided by the AS signed by the user, the address of the AS, and information about whether the AS is activated, and the HLR30 returns a location registration notification response to the MSCe20, where the location registration notification response carries the queried subscription information;

after receiving the subscription information sent by the HLR30, the MSCe20 sends a location registration response to the BSC 10.

It should be further understood that, if the circuit domain user has no subscription or has not activated the AS service, the result of the query in the HLR30 may be null, that is, the message returned by the HLR30 to the MSCe20 is null, the MSCe20 may determine that the circuit domain user is a non-subscription user, or the AS service of the circuit domain user is not activated, that is, the circuit domain user cannot enjoy the AS service.

Through the above description of the communication system, the communication system realizes that when the MSCe20 performs location registration for a circuit domain user, the address of the AS and information on whether the AS included in the subscription information is activated are acquired from the HLR30, and the obtained information is used AS the MSCe20 to further determine whether to send a service request of the user to the corresponding AS. Therefore, the communication system provided in this embodiment may further include an application server AS 40; the BSC10 in the original communication system is also used for receiving a call request sent by a circuit domain user and sending the call request to the MSCe 20; the MSCe20 is also used for receiving the call request, judging whether the circuit domain user activates the AS service according to the subscription information stored by the MSCe20, and if so, sending a request for providing service for the circuit domain user to the AS 40; the AS40 user receives the request sent by MSCe20 for providing service for the user, and executes the operation for providing service for the user.

Through the above description of the communication system provided in this embodiment, the communication system sends a request for providing services for the circuit domain user to the AS40 through the MSCe20, and the AS40 performs an operation of providing services for the circuit domain user, so that the AS40 provides services for the circuit domain user.

When the AS providing services for the calling and called users is executed by the same AS, the AS40 further determines whether the called user is a subscriber of the AS, and if so, performs the service providing operation for the called user.

Generally, for communicating with users belonging to a local area, such AS users in an enterprise, the AS providing services for the calling and called users is usually one.

It should also be understood that the above description includes: the communication system of the base station controller BSC10, the mobile switching center emulated MSCe20 and the home location register HLR30 is a communication system that enables location registration of circuit domain subscribers. The communication system may further include AS401, and after receiving the subscription information sent by HLR30, MSCe20 is further configured to send information of the power-on or power-off state of the user to AS 401. The AS401 receives the information of the power-on or power-off state of the user and stores the information in the AS, so that the AS can conveniently perform other operations such AS intelligent routing operation and the like according to the information of the user state.

Example nine

The present embodiment provides another communication system. The purpose of the communication system provided by this embodiment is to implement circuit domain user control on activation or deactivation of a service provided by an AS. As shown in fig. 14, the method comprises the following steps: the first base station controller BSC101, the first mobile switching center emulated MSCe201, the first home location register HLR 301.

The first MSCe201 is a network entity in the CDMA system, and in the GMS system, is an MSCServer. The names of the execution entities are different for different communication systems.

The first BSC101 receives a request for activating or deactivating a service provided by an AS sent by a circuit domain user, and the first BSC101 sends the received request for activating or deactivating the service provided by the AS to the first MSCe 201; after receiving a request for activating or deactivating services provided by an AS, a first MSCe201 sends the request for activating or deactivating the services provided by the AS to a first HLR301 to which a user belongs; after receiving the request, the first HLR301 records the state of the AS activated or deactivated, and sends result information including the activation or deactivation to the first MSCe 201. If the first MSCe201 and the first HLR301 in the communication system are executed by the featurecode operation, the request for activating or deactivating the service provided by the AS, which is sent by the first MSCe201 to the first HLR301, is a feattreq message, after receiving the feattreq message, the first HLR301 sends a response feattreq to the first MSCe201, and the first HLR301 sends a qualification indication QUALDIR to the first MSCe201, the qualification indication including the result of the activation or deactivation; after receiving the QUALDIR, the first MSCe201 sends a response qualidir to the first HLR 301. It should be noted that for the GSM system, USSD operation may be used.

Through the above description of the communication system provided in this embodiment, it is achieved that the circuit domain user can select whether to use the service provided by the AS according to its own requirement, that is, control activation or deactivation of the service provided by the AS, so that the user has better user experience.

It should be understood that there are many situations where the AS needs to know the user status in order to provide better service to the user. The AS judges how to better provide the service for the user according to whether the user is online or powered on. For example: the AS sends the call to the user who is on-line while providing the intelligent routing function for the user. In order to enable the AS to better serve the user, the system further comprises a first AS 401.

The first MSCe201 is further configured to send information of a power-on state or a power-off state of a circuit domain user to the first AS 401; the first AS401 is configured to receive information of a power-on state or a power-off state of a circuit domain user. The first AS401 may further be configured to send a response to the first MSCe201, where the response indicates that the first AS401 receives information of the power-on or power-off state of the circuit domain user.

It should also be understood that not all MSCe and AS may communicate directly, for example, when the AS is located in the IMS, the AS in the communication system needs to communicate with other entities in the IMS to obtain the status information of the circuit domain user. Accordingly, the communication system may further include: an inquiry call session control function entity I-CSCF501, a home subscriber server HSS601, and a serving call session control function entity S-CSCF 701.

The first MSCe201 is further configured to send information about a power-on state or a power-off state of a circuit domain user to the I-CSCF501, and after receiving the information, the I-CSCF501 sends a request for acquiring an S-CSCF of the user to the HSS 601; after receiving the request, the HSS601 sends the S-CSCF information to the I-CSCF 501; the I-CSCF501 sends information of a power-on state or a power-off state of a circuit domain user to the S-CSCF701 according to the acquired S-CSCF address; after receiving the information of the power-on or power-off state of the circuit domain user, the S-CSCF701 transmits the information to the first AS 401. The first AS401 receives information of the power-on or power-off state of the circuit domain user. The first AS401 is further configured to send a response to confirm that the information of the power-on or power-off state of the circuit domain user is received to the S-CSCF 701; the S-CSCF701 is further configured to receive the response, and send the response to the I-CSCF 501; the I-CSCF501 is further configured to receive a response, send the response to the first MSCe 201; the first MSCe201 is also used to receive the response.

Through the above description of the communication system, the first MSCe201 finally realizes communication with the AS through the I-CSCF501, the HSS601, and the S-CSCF701 in the IMS, so that the AS obtains the state information of the circuit domain user, and the AS can provide better services to the user according to the state information of the user.

Example ten

The present embodiment provides another communication system. In the communication system, when the MSCe in the circuit domain sends a request for providing service for the circuit domain user to the AS in the IMS, the MSCe can communicate with the AS through other entities in the IMS. Referring to fig. 15, the communication system includes: a second MSCe203, a second AS403, a second I-CSCF503, a second HSS603, a second S-CSCF703 and a Media Gateway Control entity (MGCF) 803.

Wherein, the second MSCe203 receives a call request sent by the BSC or other communication system; the second MSCe203 judges whether the circuit domain user activates the AS service according to the AS service state information of the user, if yes, the second MSCe203 sends a call request to the MGCF 803; after receiving the request, the MGCF803 sends the request to the second I-CSCF 503; after receiving the request, the second I-CSCF503 sends a request for acquiring an S-CSCF address for providing a service to the user to the second HSS603 to which the user belongs; the second HSS603 sends the S-CSCF information to the second I-CSCF503, and after the second I-CSCF503 receives the information, sends the call INVITE to the second S-CSCF703, and after the second S-CSCF703 receives the request, sends the request to the second AS 403; after receiving the request, the second AS403 executes an operation of providing a service for the circuit domain user.

The second AS403 is further configured to send a call INVITE back to the S-CSCF703 after receiving a request for providing an AS service for a circuit domain user; the second S-CSCF703 sends the call INVITE to the second I-CSCF 503; the second I-CSCF503 sends the call INVITE to the MGCF, which connects the call back to the second MSCe 203; the second MSCe203 continues with call processing.

Through the above description of the communication system, the second MSCe203 in the communication system finally and indirectly communicates with the second AS403 through multiple communication entities in the IMS, so AS to achieve the purpose that the second AS provides services for the circuit domain user. The communication system can make the improvement of the existing network equipment small, and achieve the purpose that the AS provides service for the circuit domain user.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.

The method and the communication system for providing services for the circuit domain user by the application server provided by the embodiment of the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A method for providing service for circuit domain user by application server AS is characterized in that the method comprises:

receiving a call request of a circuit domain user;

determining the AS service state of the circuit domain user;

2. The method of claim 1, wherein the determining the AS service status of the circuit domain user further comprises:

acquiring the subscription information of the circuit domain user from a called Home Location Register (HLR);

judging whether the subscription information contains AS information or not, and if so, determining that the AS service state of the user of the circuit domain is an activated state;

the triggering the call to the corresponding AS comprises: triggering the call to a corresponding AS according to the AS address in the AS information; or,

acquiring the address of the AS according to the AS identification in the AS information; and triggering the call to the corresponding AS according to the obtained AS address.

3. The method of claim 1, wherein the determining the AS service status of the circuit domain user further comprises:

acquiring AS information in the subscription information, judging whether an activation identifier in the AS information is activated, and if so, determining that the AS service state of the user of the circuit domain is an activated state;

4. The method of claim 1, wherein before receiving the call request of the circuit domain user, the method further comprises:

receiving a position registration request of the circuit domain user;

sending the location registration request to a user Home Location Register (HLR);

and receiving a location registration response sent by the HLR, wherein the location registration response comprises subscription information of the circuit domain user.

5. The method of claim 4, wherein the determining the AS traffic status of the CS domain user further comprises:

acquiring subscription information in the location registration response;

6. The method of claim 4, wherein the determining the AS traffic status of the CS domain user further comprises:

acquiring subscription information in the location registration response;

7. The method of claim 4, wherein after receiving the location registration response sent by the HLR, the method further comprises:

and sending the starting-up or shutdown state information of the circuit domain user to the AS according to the AS identification or the AS address in the subscription information.

8. The method of claim 4, wherein before receiving the call request of the circuit domain user, the method further comprises:

receiving a request for activating or deactivating an Application Server (AS) service by the circuit domain user;

sending a request for activating or deactivating the AS service to a Home Location Register (HLR) of a user of the circuit domain to request the HLR to update the AS service activation state of the circuit domain user;

receiving qualification indicating information which contains an updating result and is sent by the HLR;

and sending the updating result to the AS according to the AS mark or the AS address in the subscription information.

9. The method of claim 8, wherein the request for activating or deactivating the AS service of the application server by the circuit domain user is: feature request feattreq, or unstructured supplementary service data USSD request.

10. The method according to any of claims 1 to 9, wherein the step of triggering the call to the corresponding AS comprises:

and sending the call request of the circuit domain user to a media gateway control entity (MGCF) or an inquiry call session control function entity (I-CSCF), and routing the call request to the AS through the MGCF or the I-CSCF.

11. A method for notifying the user status of a circuit domain user, comprising:

and informing the user state to a corresponding application server AS.

12. The method of claim 11, wherein the obtaining the AS service status of the cs domain user comprises:

receiving a position registration request of the circuit domain user;

and receiving a location registration response sent by the HLR, wherein the location registration response comprises the AS service state and the AS address of the circuit domain user, or the location registration response comprises the AS service state and the AS identification of the circuit domain user.

13. The method according to claim 12, wherein the user status of the circuit domain user is obtained according to the AS service status of the user; notifying the user state to a corresponding application server AS, comprising:

when the user is in a starting state and the AS service state is activated, informing the AS that the user state is user starting or user online;

when the user is in a power-on state and the AS service state is in a deactivation state, informing the AS that the user state is user power-off or user offline;

and when the user is in a power-off state, informing the AS that the user state is the power-off state or the offline state of the user.

14. The method of claim 11, wherein the obtaining the user status of the circuit domain user comprises:

receiving qualification indicating information which contains an updating result and is sent by the HLR, wherein the qualification indicating information contains a user state;

the notifying the user status to the corresponding application server AS specifically includes: and sending the updating result to a corresponding application server AS according to a preset AS address.

15. The method of claim 14, wherein the user status comprises any one of: and mapping the AS service state of the user AS an activated state into the state that the user state is on line or the user is started, and mapping the AS service state of the user AS a deactivated state into the state that the user state is off line or the user is stopped.

16. A server, comprising:

17. The server according to claim 16, wherein the determining unit further comprises:

the first acquisition unit is used for acquiring the subscription information of the circuit domain user from a called Home Location Register (HLR) or acquiring the subscription information from a location registration response sent by the circuit domain user Home Location Register (HLR);

a first determining unit, configured to determine whether the subscription information includes AS information;

a first determining unit, configured to determine that an AS service state of a user of the circuit domain is an activated state when a determination result in the first determining unit is that the subscription information includes AS information;

the sending unit is further used for triggering the call to a corresponding AS according to the AS address in the AS information; or,

the sending unit is further configured to obtain an address of the AS according to the AS identifier in the AS information; and triggering the call to the corresponding AS according to the obtained AS address.

18. The server according to claim 16, wherein the determining unit further comprises:

a second obtaining unit, configured to obtain subscription information of the circuit domain user from a called home location register HLR, or obtain subscription information from a location registration response sent by the circuit domain user home location register HLR;

a third obtaining unit, configured to obtain AS information in the subscription information;

a second obtaining unit, configured to determine whether an activation identifier in the AS information is activated;

the second confirming unit is used for determining that the AS service state of the user of the circuit domain is an activated state when the judgment result in the second acquiring unit is positive;

19. The server according to claim 16, wherein the receiving unit is further configured to receive a location registration request of the circuit domain user, and receive a location registration response sent by the HLR, where the location registration response includes subscription information of the circuit domain user;

the sending unit is further configured to send the location registration request to a home location register HLR of the user.

20. The server according to claim 19, wherein the sending unit is further configured to send information of a power-on state or a power-off state of the circuit domain user to the AS according to an AS identifier or an AS address in the subscription information.

21. A communication system, comprising:

22. The communication system of claim 21, further comprising a subscriber Home Location Register (HLR),

the MSC is also used for receiving a location registration request of a circuit domain user, sending the location registration request to a Home Location Register (HLR), and receiving a location registration response sent by the HLR, wherein the location registration response comprises subscription information of the circuit domain user;

and the HLR is used for receiving the location registration request of the circuit domain user sent by the MSC, inquiring the subscription information of the circuit domain user and sending the location registration response containing the subscription information to the MSC.

23. The communication system according to any of claims 22, wherein the MSC is further configured to receive a request for activating or deactivating an AS for a circuit domain subscriber, send the request to an HLR to request the HLR to update an AS service activation status of the circuit domain subscriber, receive qualification indicating information including an update result sent by the HLR, and send the update result to the AS according to an AS identifier or an AS address in the subscription information;

the HLR is also used for receiving a request of activating or deactivating the AS of the circuit domain user sent by the MSC, recording the AS AS an activated or deactivated state, and sending qualification indicating information containing an updating result to the MSC.