CN102131260A - Method, device and system for implementing call anchoring service - Google Patents
Method, device and system for implementing call anchoring service Download PDFInfo
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Abstract
The invention discloses a method, a device and a system for implementing call anchoring service. The method comprises the following steps: when a mobile terminal user registers to an IMS (IP multimedia subsystem) core network (CN), acquiring a registration event, and notifying an SCP (service control point) to the mobile terminal belonged of opening the call anchoring service for the mobile terminal according to the registration event, wherein, the call anchoring service is used for routing a circuit switched (CS) domain of the mobile domain into an IMS domain; and when the mobile terminal user logs out from the IMS CN, acquiring a logout event, and notifying the SCP belonging to the mobile terminal of canceling the call anchoring service of the mobile terminal according to the logout event. By utilizing the method, the device and the system, the call anchoring service can be dynamically opened so as to reduce speech path roundabout.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for implementing a call anchoring service.
Background
Network IP has become a necessary future development trend for communication networks. The IP broadband service provided by the current Global System for Mobile Communications (GSM) network is mostly completed by overlaying an IP Multimedia Subsystem (IMS) domain Application Server (AS) on a Circuit Switched (CS) domain. For example, in the process of calling the mobile subscriber signing the IMS service by the general mobile subscriber, the call is routed to the calling Visited Mobile Switching Center (VMSC), the VMSC triggers the call to the intelligent network SCP according to the called subscription attribute returned by the called Home Location Register (HLR), the SCP changes the called number to the designated routing code, the Gateway Mobile Switching Center (GMSC) continues the call to the Media Gateway Control Function (MGCF) by the voice routing, the MGCF triggers the call to the AS, the AS performs call Control, if the called subscriber is in the offline state in the IMS domain, the AS initiates the call to the mgccs domain, the AS routes the call to the MGCF, the gmsf routes the call back to the GMSC, the GMSC triggers the call to the SCP by the concisen, a call to the CS domain is initiated to the called party.
In the existing flow of providing IMS services for mobile terminals, calls that need to be routed back to the CS domain are anchored to the AS in the IMS domain, and finally the calls are routed back to the CS domain by the AS and dropped to the ground through a gateway or end office, which results in speech path detour and waste of network resources.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a system for realizing call anchoring service so as to reduce speech path roundabout.
The embodiment of the invention provides a method for realizing a call anchoring service, which comprises the following steps:
when a mobile terminal user registers to an IMS core network, acquiring a registration event, and notifying a Service Control Point (SCP) to which the mobile terminal belongs to open a call anchoring service for the mobile terminal according to the registration event, wherein the call anchoring service is used for routing a call of a circuit switched domain (CS) domain of the mobile terminal to the IMS domain;
when the mobile terminal user logs off from the IMS core network, a logout event is obtained, and the SCP to which the mobile terminal belongs is informed to cancel the call anchoring service of the mobile terminal according to the logout event.
An embodiment of the present invention provides a service platform, including:
an obtaining unit, configured to obtain a registration event when a mobile terminal user registers in an IMS core network; when the mobile terminal user logs off from an IMS core network, acquiring a logout event;
an account opening unit, configured to notify a service control point SCP to which the mobile terminal belongs to, according to the registration event, to open a call anchoring service for the mobile terminal, where the call anchoring service is used to route a call in a CS domain of a circuit switched domain of the mobile terminal to an IMS domain;
and the subscriber cancellation unit is used for notifying the SCP to which the mobile terminal belongs to cancel the call anchoring service of the mobile terminal according to the cancellation event.
The embodiment of the invention provides a system for realizing call anchoring service, which comprises:
a service platform, configured to obtain a registration event when a mobile terminal user registers in an IMS core network, and notify a service control point SCP to which the mobile terminal belongs to open a call anchoring service for the mobile terminal according to the registration event, where the call anchoring service is used to route a call in a CS domain of a circuit switched domain of the mobile terminal to the IMS domain; when the mobile terminal user logs off from an IMS core network, acquiring a logout event, and notifying an SCP (service control point) to which the mobile terminal belongs to cancel a call anchoring service of the mobile terminal according to the logout event;
the service control device SCP is used for opening an account of the call anchoring service according to the notification which is sent by the service platform and is used for opening the call anchoring service for the mobile terminal; and canceling the call anchoring service for the mobile terminal according to the notification sent by the service platform.
The embodiment of the invention dynamically opens and cancels the account on the SCP through the service platform, so that the SCP can dynamically anchor according to the registration condition of the mobile terminal user in the IMS core network, when the mobile terminal user is not in the IMS and registered, the subsequent CS call of the mobile terminal is not routed to the IMS domain any more through the dynamic account cancellation in the SCP, and the speech path circuity is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart for implementing dynamic account opening of a call anchor service according to an embodiment of the present invention;
fig. 2 is a flow chart of HLR subscription according to an embodiment of the present invention;
fig. 3 is a flow chart of the embodiment of the invention for opening a call anchor service;
FIG. 4 is a flow chart of an embodiment of the present invention for implementing a call anchoring service;
fig. 5 is a schematic structural diagram of a system for implementing a call anchoring service according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a service platform provided in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The IMS service is an IP broadband service, and if a user wants to sign up for the service, the user may be signed up for called Subscription Information (T-CSI) or calling Subscription Information (O-CSI) on a Home Location Register (HLR), and a Service Control Point (SCP) address is pointed to an AS of the IMS network. However, because the user is restricted to sign only one intelligent service on the HLR, if the existing GSM network user already signs the intelligent network service, the user is signed another service (T-CSI or O-CSI) which is not supported on the HLR, therefore, on the premise that the HLR cannot be modified, the prior art triggers the call to the AS of the IMS domain in an anchoring mode on the SCP, and the AS of the IMS domain completes the call control logic. Anchoring here refers to routing calls of the CS domain to the IMS domain.
Through the above analysis, the present IMS service provisioning involves signing a contract on the HLR of the mobile GSM network and opening an account on the SCP of the intelligent network. In the prior art, both actions are completed through a service Operation Support System (BOSS), and the account opening process of the BOSS on the SCP is static, once the account is opened, the SCP anchors all subsequent calls of the mobile terminal to the AS of the IMS domain, and finally the AS routes the call back to the CS domain and falls to the ground through a gateway office or an end office, thereby causing a call path to bypass.
The embodiment of the invention informs the SCP to open the call anchoring service for the mobile terminal when the mobile terminal user registers in the IMS core network by introducing the service platform, and informs the SCP to open the call anchoring service for the mobile terminal when the mobile terminal user logs out from the IMS core network, thereby realizing the dynamic account opening on the SCP. The SCP can be anchored according to the registration condition of the mobile terminal user in the IMS core network, and the speech path roundabout is reduced.
Fig. 1 is a flowchart for implementing dynamic account opening of a call anchor service according to an embodiment of the present invention, which specifically includes:
s101, when a mobile terminal user registers to an IMS core network, a registration event is obtained;
when the mobile terminal user registers to the IMS core network, the service platform may receive a notification from the IMS core network or the mobile terminal that the mobile terminal user registers to the IMS core network.
S102, the call anchoring service is used for routing the call of the mobile terminal circuit switching CS domain to the IMS domain;
after learning that the mobile terminal user registers to the IMS core network, the service platform opens the call anchoring service for the mobile terminal. Specifically, the service platform may notify the SCP to open the call anchor service for the mobile terminal by sending an account opening request to the SCP, where the account opening request is generated by the service platform and carries the mobile terminal identifier and the service identifier, and the service identifier is used to identify the IMS core network device registered by the mobile terminal user. After receiving the request for opening an account, the SCP judges whether the record of the mobile terminal already exists, if so, the SCP indicates that the mobile terminal also opens other intelligent network services, and the SCP directly adds the service identifier carried in the request for opening an account in the record of the mobile terminal; if not, it indicates that the mobile terminal user does not open other intelligent network services, SCP creates a record for the mobile terminal, and adds the service identifier carried in the account opening request in the created record; in the subsequent calling process, the SCP anchors the calling of the mobile terminal to the IMS domain according to the service identification.
S103, when the mobile terminal user logs off from the IMS core network, acquiring a logout event;
when the mobile terminal user logs off from the IMS core network, the service platform may receive a notification from the IMS core network or the mobile terminal that the mobile terminal user logged off from the IMS core network.
S104, according to the cancellation event, the SCP belonging to the mobile terminal is notified to cancel the call anchoring service of the mobile terminal.
And after the service platform learns that the mobile terminal user logs off from the IMS core network, the service platform cancels the call anchoring service for the mobile terminal. Specifically, the service platform may also notify the SCP to cancel the call anchoring service for the mobile terminal by sending a cancellation request to the SCP, where the cancellation request is generated by the service platform and carries the mobile terminal identifier and the service identifier. The SCP deletes the corresponding service identification in the record of the mobile terminal according to the received subscriber request, and if the mobile terminal does not open other intelligent network services, the SCP can further delete the record of the mobile terminal.
It should be noted that the call anchoring service in the embodiment of the present invention may exist in an independent service form in the SCP, or may be implemented by using an existing intelligent Network service, for example, a Virtual Private Mobile Network (VPMN) service, and by adding a service identifier in an account opening request to the existing intelligent Network service, the SCP may anchor a call of a Mobile terminal that subscribes to the intelligent Network service to the IMS domain according to the service identifier.
The embodiment of the invention dynamically opens and cancels the account on the SCP through the service platform, so that the SCP can dynamically anchor according to the registration condition of the mobile terminal user in the IMS core network, when the mobile terminal user is not in the IMS and registered, the subsequent CS calling of the mobile terminal is not routed to the IMS domain any more through the dynamic account cancellation in the SCP, thereby reducing the speech path roundabout and avoiding the problem of call obstruction caused by AS failure.
In a specific embodiment, the above steps S102 and S103 may be obtained by subscribing to the state of the mobile terminal in the IMS core network when obtaining the registration event and the deregistration event. Specifically, the service platform may subscribe to the state of the mobile terminal by receiving a third party registration initiated by the IMS core network. The third party registration process may be implemented by three pairs of SIP messages, i.e., register, subscribe, notify, etc., in the 3GPP specification, which may specifically refer to S307-S309 in fig. 3. The service platform can also obtain the registration or cancellation event of the mobile terminal user in the IMS core network by receiving the registration event notification or cancellation notification initiated by the mobile terminal on the Portal Server, wherein the registration event notification and cancellation event notification can be HTTP requests.
Through the two modes, the service platform receives the registration event when the mobile terminal user registers in the IMS core network, and receives the logout event when the mobile terminal user logs out from the IMS core network. Of course, the above two methods may be implemented in other ways, which are not exemplified here.
The above embodiment is an improvement on the account opening process on the SCP, and in order to improve the efficiency of opening the IMS service, the embodiment of the present invention may further improve the subscription process on the HLR through the service platform, and the improvement on the HLR subscription flow is further described below.
As shown in fig. 2, fig. 2 is a flow chart of HLR subscription provided in the embodiment of the present invention, which specifically includes:
s201, receiving an intelligent network service opening request initiated by a mobile terminal, wherein the intelligent network service opening request carries a mobile terminal identifier and an intelligent network service identifier;
specifically, the mobile terminal may initiate an intelligent network service provisioning request to the service platform through the HTTP interface.
S202-S203, calling a BOSS interface of the service operation support system, and completing the manufacture of the intelligent network service subscription data on the HLR through the BOSS.
And after receiving the intelligent network service opening request, the service platform calls the BOSS interface and transmits the intelligent network service opening request carrying the mobile terminal identification and the intelligent network service identification to the BOSS. After the BOSS receives the request for opening the intelligent network service, the work order is sent to the HLR to sign the intelligent network service, and the HLR completes the work order making.
Optionally, after receiving the call of the service platform, the BOSS may send back a response message indicating that the request has been received to the service platform, and the service platform forwards the response message to the mobile terminal to notify that the request has been accepted.
S204, the HLR returns a signing message response to the BOSS.
It should be noted that the intelligent network service provisioned on the HLR may be any intelligent network service, which is intended to trigger the call of the mobile terminal to the SCP via the intelligent network service, thereby implementing the anchoring to the IMS domain at the SCP.
The following further describes the scheme of the present invention by taking the registration of a mobile terminal to an IMS core network as an example, with reference to fig. 3, fig. 3 is a flowchart of opening a call anchoring service in the embodiment of the present invention, the present embodiment takes the state that a service platform subscribes to the mobile terminal by receiving a third party registration initiated by the IMS core network as an example, and the specific flow includes:
S301-S304, signing an intelligent network service for a mobile terminal in a home location register HLR in advance, so as to trigger the call to SCP when the mobile terminal initiates the call;
the specific implementation of this process may refer to S201-S204 of fig. 2, which is not described herein again.
S305-S306, the IMS core network receives the registration request of the mobile terminal user, completes the registration of the mobile terminal user in the IMS core network, and returns a registration response to the mobile terminal user;
a mobile terminal user can log in and register the IMS core network through a soft terminal or a WEB page, wherein the user identification of the user registered in the IMS core network is the same as the mobile terminal identification, such as a mobile phone number.
S307, the service platform receives a third party registration request from the IMS core network;
the registration request may be a register message in the 3GPP specifications.
S308, the service platform sends a subscription request to the IMS core network according to the third party registration request, and subscribes the state of the mobile terminal user in the IMS core network;
the subscription request may be a subscribe message in the 3GPP specification.
S309, the service platform receives the state notification sent by the IMS core network according to the subscription request, and acquires the registration event of the mobile terminal user in the IMS core network from the state notification;
after receiving a subscription request sent by a service platform, an IMS core network sends a state notification to the service platform, wherein the registration state notification may be a notify message in a 3GPP specification, and the service platform may distinguish a registration event from a deregistration event through an expire field in the notify message.
S310-S311, the service platform sends an account opening request to the service management point SMP, and the SMP sends the account opening request to the service control point SCP.
When knowing that the mobile terminal user registers to the IMS core network, the service platform informs a service control point SCP to which the mobile terminal belongs to open a call anchoring service for the mobile terminal. The method for informing a Service Control Point (SCP) to which a mobile terminal belongs to open a call anchoring service for the mobile terminal specifically comprises the following steps: the service platform generates an account opening request, the account opening request carries a mobile terminal identifier and a service identifier, and the service identifier is used for identifying IMS core network equipment registered by a mobile terminal user; and calling an SMP interface, and sending the account opening request to a service control point SCP to which the mobile terminal belongs through the SMP. The SMP is optional, when there are multiple SCPs in the network, the service platform needs to send an account opening request to the SMP, and the SMP determines the SCP to which the mobile terminal belongs. Under the condition that the service platform knows the SCP to which the mobile terminal belongs, the service platform can not be forwarded through the SMP.
And S312-S313, after receiving the account opening request, the SCP performs account opening processing and returns a receiving response to the service platform through the SMP.
After receiving the request for opening an account, the SCP judges whether the record of the mobile terminal already exists, if so, the SCP indicates that the mobile terminal also opens other intelligent network services, and the SCP directly adds the service identifier carried in the request for opening an account in the record of the mobile terminal; if not, it indicates that the mobile terminal user does not open other intelligent network services, SCP creates a record for the mobile terminal, and adds the service identifier carried in the account opening request in the created record; in the subsequent calling process, the SCP anchors the calling of the mobile terminal to the IMS domain according to the service identification.
The above embodiment is an opening process of the call anchoring service, and can be similarly implemented for a cancellation process of the call anchoring service. In contrast, in S305-S306, the IMS performs IMS core network deregistration for the mobile terminal user, and in S310-S312, performs subscriber notification and subscriber cancellation, where the specific procedures of subscriber notification and subscriber cancellation can be implemented with reference to the embodiment shown in fig. 1. In addition, when acquiring the logout event, S307-309 may also be referred to be implemented by request, subscribe, and notify, but the logout event of the mobile terminal user in the IMS core network is acquired from the status notification in S309, and the service platform may distinguish the registration event from the logout event by using an expire field in the notify message, where, if the expire field is 0, it indicates that the registration event is the logout event of the mobile terminal user in the IMS core network.
The following further describes the scheme of the present invention by taking the whole registration and deregistration process of the mobile terminal from the IMS core network as an example, with reference to fig. 4, fig. 4 is a flowchart of implementing the call anchoring service in the embodiment of the present invention, the embodiment takes the example that the service platform obtains the registration and deregistration events of the mobile terminal user in the IMS core network by receiving the deregistration event notification initiated by the mobile terminal on the Portal Server, and the specific process includes:
S401-S404, signing an intelligent network service for a mobile terminal in a home location register HLR in advance so as to trigger the call to SCP when the mobile terminal initiates the call;
the specific implementation of this process may refer to S201-S204 of fig. 2, which is not described herein again.
S405-S406, the IMS core network receives the registration request of the mobile terminal user, completes the registration of the mobile terminal user in the IMS core network, and returns a registration response to the mobile terminal user; the specific implementation of this process can refer to S305-S306 in fig. 3, which is not described herein again.
S407, after receiving the registration response returned by the IMS core network, the mobile terminal sends a registered notification to a Portal Server of a Portal service terminal.
S408, the Portal Server initiates a registration event notification to the service platform; the registration event notification may be an HTTP message.
S409, the service platform returns a response message to the Portal Server.
S410-S413, the service platform opens an account to the service control point SCP through the SMP, and the process may refer to S310-S313 and is not described herein again.
S414, the mobile terminal user logs off from the IMS core network.
S415, after the mobile terminal logs out from the IMS core network, the mobile terminal sends a logout notice to a Portal Server of a Portal service terminal.
S416, the Portal Server initiates a logout event notification to the service platform; the logoff event notification may be an HTTP message.
S417, the service platform returns a response message to the Portal Server.
And S418-S419, the service platform sends a subscriber cancellation request to the service management point SMP, and the SMP sends the subscriber cancellation request to the service control point SCP.
When the service platform knows that the mobile terminal user logs out to the IMS core network, the service platform informs a service control point SCP to which the mobile terminal belongs to cancel the call anchoring service for the mobile terminal. The method for notifying a Service Control Point (SCP) to which a mobile terminal belongs to cancel a call anchoring service for the mobile terminal specifically comprises the following steps: the service platform generates a subscriber cancellation request which carries a mobile terminal identifier and a service identifier, wherein the service identifier is used for identifying IMS core network equipment registered by a mobile terminal user; and calling an SMP interface, and sending the subscriber cancellation request to a service control point SCP to which the mobile terminal belongs through the SMP. The SMP is optional, when there are multiple SCPs in the network, the service platform needs to send the cancellation request to the SMP, and the SMP determines the SCP to which the mobile terminal belongs. Under the condition that the service platform knows the SCP to which the mobile terminal belongs, the service platform can not be forwarded through the SMP.
And S420-S421, after receiving the cancellation request, the SCP performs cancellation processing, and returns a receiving response to the service platform through the SMP.
After receiving the request of canceling user, the SCP deletes the corresponding service identifier in the record of the mobile terminal according to the request of canceling user, if the mobile terminal does not open other intelligent network services, the SCP can further delete the record of the mobile terminal.
The embodiment of the invention also discloses a system for realizing the call anchoring service, and as shown in fig. 5, the system can comprise a service platform 501 and a service control device SCP 502. Wherein,
a service platform, which is used for acquiring a registration event when a mobile terminal user registers to an IMS core network, and informing a Service Control Point (SCP) to which the mobile terminal belongs to open a call anchoring service for the mobile terminal according to the registration event, wherein the call anchoring service is used for routing a call of a CS domain of a mobile terminal circuit domain to the IMS domain; when the mobile terminal user logs off from the IMS core network, acquiring a logout event, and notifying an SCP (service control point) to which the mobile terminal belongs to cancel the call anchoring service of the mobile terminal according to the logout event;
the service control device SCP is used for opening an account of the call anchoring service according to the notification which is sent by the service platform and is used for opening the call anchoring service for the mobile terminal; and according to the notification sent by the service platform for canceling the call anchoring service for the mobile terminal, carrying out the cancellation processing of the call anchoring service.
Specifically, the service platform may notify the SCP to open the call anchor service for the mobile terminal by sending an account opening request to the SCP, where the account opening request is generated by the service platform and carries the mobile terminal identifier and the service identifier, and the service identifier is used to identify the IMS core network device registered by the mobile terminal user. After receiving the request for opening an account, the SCP judges whether the record of the mobile terminal already exists, if so, the SCP indicates that the mobile terminal also opens other intelligent network services, and the SCP directly adds the service identifier carried in the request for opening an account in the record of the mobile terminal; if not, it indicates that the mobile terminal user does not open other intelligent network services, SCP creates a record for the mobile terminal, and adds the service identifier carried in the account opening request in the created record; in the subsequent calling process, the SCP anchors the calling of the mobile terminal to the IMS domain according to the service identification.
Similarly, the service platform may also notify the SCP to cancel the call anchoring service for the mobile terminal by sending a cancellation request to the SCP, where the cancellation request is generated by the service platform and carries the mobile terminal identifier and the service identifier. The SCP deletes the corresponding service identification in the record of the mobile terminal according to the received subscriber request, and if the mobile terminal does not open other intelligent network services, the SCP can further delete the record of the mobile terminal.
The service platform can obtain the registration or logout event of the mobile terminal user in the IMS core network from the IMS core network or the mobile terminal. When the service platform obtains the registration or logout event of the mobile terminal user in the IMS core network from the IMS core network, the system for implementing the call anchoring service provided in the embodiment of the present invention may further include an IMS core network device for notifying the service platform of the registration or logout event of the mobile terminal user in the IMS core network. When the service platform obtains the registration or cancellation event of the mobile terminal user in the IMS core network from the mobile terminal, the system for implementing the call anchoring service provided in the embodiment of the present invention may further include a Portal Server for receiving a registration or cancellation notification from the mobile terminal and notifying the service platform of the registration or cancellation event of the mobile terminal user in the IMS core network.
In order to improve the efficiency of opening the IMS service, the system for implementing the call anchoring service provided in the embodiment of the present invention may also include an HLR and a BOSS system. The service platform is further used for receiving an intelligent network service opening request initiated by the mobile terminal, the intelligent network service opening request carries a mobile terminal identifier and an intelligent network service identifier, the service platform calls a BOSS interface of a service operation support system according to the intelligent network service opening request, and the intelligent network service subscription data on the HLR is manufactured through the BOSS. The BOSS system is used for receiving an intelligent network service opening request which is transmitted by the service platform and carries the mobile terminal identification and the intelligent network service identification, and sending a work order to the HLR according to the request so as to sign the intelligent network service. And the HLR is used for receiving the work order sent by the BOSS system and finishing the manufacture of the intelligent network service subscription data according to the work order.
The embodiment of the invention dynamically opens and cancels the account on the SCP through the service platform, so that the SCP can dynamically anchor according to the registration condition of the mobile terminal user in the IMS core network, when the mobile terminal user is not in the IMS and registered, the subsequent CS calling of the mobile terminal is not routed to the IMS domain any more through the dynamic account cancellation in the SCP, thereby reducing the speech path roundabout and avoiding the problem of call obstruction caused by AS failure.
Referring to fig. 6, fig. 6 is a structural diagram of a service platform, where the service platform may include an obtaining unit 601, an account opening unit 602, and an account canceling unit 603, and specific functions of each unit are as follows:
an obtaining unit 601, configured to obtain a registration event when a mobile terminal user registers in an IMS core network; when the mobile terminal user logs off from the IMS core network, a logout event is obtained. In a specific embodiment, the obtaining unit 601 may obtain the registration or deregistration event of the mobile terminal in the IMS core network by subscribing to the state of the mobile terminal in the IMS core network. In another specific embodiment, the obtaining unit may also receive a registration event notification sent by the mobile terminal through a Portal Server when the mobile terminal user registers in the IMS core network; when the user of the mobile terminal logs off from the IMS core network, a log-off event notice sent by the mobile terminal through a Portal Server is received.
An account opening unit 602, configured to notify a service control point SCP to which the mobile terminal belongs to open a call anchoring service for the mobile terminal according to the registration event, where the call anchoring service is used to route a call in a CS domain of a circuit switched domain of the mobile terminal to an IMS domain.
Specifically, the account opening unit 602 may be configured to generate an account opening request, where the account opening request carries the mobile terminal identifier and a service identifier, and the service identifier is used to identify an IMS core network device registered by a mobile terminal user; and calling an SMP interface of the service management point, and sending an account opening request to a service control point SCP to which the mobile terminal belongs through the SMP.
A subscriber cancellation unit 603, configured to notify an SCP belonging to the mobile terminal to cancel the call anchoring service of the mobile terminal according to the cancellation event.
Specifically, the subscriber identity module 603 may be configured to generate a subscriber identity request, where the subscriber identity request carries a mobile terminal identifier and a service identifier; and calling an SMP interface of the service management point, and sending the subscriber cancellation request to a service control point SCP to which the mobile terminal belongs through the SMP.
In order to improve the efficiency of opening the IMS service, in an embodiment, the account opening unit 602 may be further configured to sign an intelligent network service for the mobile terminal in the home location register HLR in advance, so that the call is triggered to the SCP when the mobile terminal initiates the call. Specifically, the account opening unit 602 may receive an intelligent network service provisioning request initiated by the mobile terminal, where the request carries a mobile terminal identifier and an intelligent network service identifier; the account opening unit 602 calls a BOSS interface of the service operation support system according to the request, and completes the making of the intelligent network service subscription data on the HLR through the BOSS system. For specific implementation of the process, reference may be made to the method embodiment portion and the system embodiment portion, which are not described herein again.
The specific implementation of the functions of each unit of the service platform may refer to the method embodiment part, which is not described herein again.
It should be noted that the service platform in the embodiment of the present invention may be implemented on a computer, and each unit in the service platform may be run in a processor of a computer device.
The embodiment of the invention informs the SCP to open the call anchoring service for the mobile terminal when the mobile terminal user registers in the IMS core network by introducing the service platform, and informs the SCP to open the call anchoring service for the mobile terminal when the mobile terminal user logs out from the IMS core network, thereby realizing the dynamic account opening on the SCP. The SCP can be anchored according to the registration condition of the mobile terminal user in the IMS core network, and the speech path roundabout is reduced.
Through the above description of the embodiments, one of ordinary skill in the art can understand that: all or part of the steps of the method for implementing the above embodiment may be implemented by a program instructing associated hardware, where the program may be stored in a computer-readable storage medium, and when executed, the program includes the steps of the above method embodiment, and the storage medium includes, for example: ROM/RAM, magnetic disk, optical disk, etc.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (14)
1. A method for implementing a call anchoring service, the method comprising:
when a mobile terminal user registers to an IMS core network, acquiring a registration event, and notifying a Service Control Point (SCP) to which the mobile terminal belongs to open a call anchoring service for the mobile terminal according to the registration event, wherein the call anchoring service is used for routing a call of a circuit switched domain (CS) domain of the mobile terminal to the IMS domain;
when the mobile terminal user logs off from the IMS core network, a logout event is obtained, and the SCP to which the mobile terminal belongs is informed to cancel the call anchoring service of the mobile terminal according to the logout event.
2. The method of claim 1, wherein the registration or deregistration event of the acquiring mobile terminal at the IMS core network is obtained by subscribing to the state of the mobile terminal at the IMS core network.
3. The method of claim 1, wherein obtaining a registration event upon registration of a mobile terminal user with an IMS core network comprises:
when the mobile terminal user is registered to an IMS core network, receiving a registration event notification sent by the mobile terminal through a Portal Server;
when the mobile terminal user logs off from the IMS core network, acquiring a logout event comprises the following steps:
and when the mobile terminal user logs out from the IMS core network, receiving a log-out event notification sent by the mobile terminal through a Portal Server.
4. The method according to claim 1, wherein the notifying a service control point SCP to which the mobile terminal belongs to provision a call anchor service for the mobile terminal specifically comprises:
generating an account opening request, wherein the account opening request carries the mobile terminal identifier and a service identifier, and the service identifier is used for identifying IMS core network equipment registered by the mobile terminal user;
and calling an SMP interface of the service management point, and sending the account opening request to a service control point SCP to which the mobile terminal belongs through the SMP.
5. The method according to claim 1, wherein notifying the mobile terminal's home SCP to cancel the mobile terminal's call anchor service specifically comprises:
generating a customer cancellation request, wherein the customer cancellation request carries the mobile terminal identification and the service identification;
and calling an SMP interface of a service management point, and sending the subscriber cancellation request to a service control point SCP to which the mobile terminal belongs through the SMP.
6. The method of any one of claims 1-5, further comprising: an intelligent network service is subscribed to the mobile terminal in a home location register HLR in advance so that the call is triggered to an SCP when the mobile terminal initiates the call.
7. The method according to any of claims 1-5, wherein pre-subscribing to intelligent network services for the mobile terminal in a home location register, HLR, comprises:
receiving an intelligent network service opening request initiated by the mobile terminal, wherein the request carries a mobile terminal identifier and an intelligent network service identifier;
and calling a BOSS interface of the service operation support system, and completing the manufacture of the intelligent network service subscription data on the HLR through the BOSS system.
8. A service platform, comprising:
an obtaining unit, configured to obtain a registration event when a mobile terminal user registers in an IMS core network; when the mobile terminal user logs off from an IMS core network, acquiring a logout event;
an account opening unit, configured to notify a service control point SCP to which the mobile terminal belongs to, according to the registration event, to open a call anchoring service for the mobile terminal, where the call anchoring service is used to route a call in a CS domain of a circuit switched domain of the mobile terminal to an IMS domain;
and the subscriber cancellation unit is used for notifying the SCP to which the mobile terminal belongs to cancel the call anchoring service of the mobile terminal according to the cancellation event.
9. The service platform of claim 8, wherein the obtaining unit is specifically configured to obtain a registration or deregistration event of the mobile terminal in an IMS core network by subscribing to a state of the mobile terminal in the IMS core network.
10. The service platform of claim 8, wherein the obtaining unit is specifically configured to receive a registration event notification sent by the mobile terminal through a Portal Server when the mobile terminal user registers in an IMS core network; and when the mobile terminal user logs out from the IMS core network, receiving a log-out event notification sent by the mobile terminal through a Portal Server.
11. The service platform of claim 8, wherein the account opening unit is specifically configured to generate an account opening request, where the account opening request carries the mobile terminal identifier and a service identifier, and the service identifier is used to identify an IMS core network device registered by the mobile terminal user; and calling an SMP interface of the service management point, and sending the account opening request to a service control point SCP to which the mobile terminal belongs through the SMP.
12. The service platform according to any one of claims 8 to 11, wherein the subscriber unit is specifically configured to generate a subscriber request, where the subscriber request carries the mobile terminal identifier and the service identifier; and calling an SMP interface of a service management point, and sending the subscriber cancellation request to a service control point SCP to which the mobile terminal belongs through the SMP.
13. The service platform of claim 11, wherein the account opening unit is further configured to subscribe to an intelligent network service for the mobile terminal in advance in a Home Location Register (HLR) to trigger a call to an SCP when the mobile terminal initiates the call.
14. A system for implementing a call anchoring service, comprising:
a service platform, configured to obtain a registration event when a mobile terminal user registers in an IMS core network, and notify a service control point SCP to which the mobile terminal belongs to open a call anchoring service for the mobile terminal according to the registration event, where the call anchoring service is used to route a call in a CS domain of a circuit switched domain of the mobile terminal to the IMS domain; when the mobile terminal user logs off from an IMS core network, acquiring a logout event, and notifying an SCP (service control point) to which the mobile terminal belongs to cancel a call anchoring service of the mobile terminal according to the logout event;
the service control device SCP is used for opening an account of the call anchoring service according to the notification which is sent by the service platform and is used for opening the call anchoring service for the mobile terminal; and canceling the call anchoring service for the mobile terminal according to the notification sent by the service platform.
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