CN101282288B - System, apparatus and method for processing services in packet field network - Google Patents

Abstract

The invention discloses a system, device and method for processing services in a packet domain network. A centralized service processing unit is arranged in the packet domain network for processing current communication requests in the packet domain network, and sends the centralized service processing unit A service trigger request is sent, and the service trigger request is processed by the centralized service processing unit. The system, device and method provided by the invention can centrally process user services and perform service interaction between user-subscribed services and non-user-subscribed services.

Description

System, device and method for processing services in packet domain network

technical field

The present invention relates to the field of packet domain network, in particular to a system, device and method for processing services in the packet domain network. the

Background technique

The packet domain network has become the research focus of the next generation network because it adopts the separation technology of service management, session control and bearer access. The Internet Protocol Multimedia Subsystem (IMS, Internet Protocol Multimedia Subsystem) network is a packet domain network. IMS is an IP multimedia subsystem defined by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) standard. (3G, 3rd Generation) The mobile network implements packet voice and packet data, and provides a unified target network for multimedia services and applications. The IMS network uses the IP packet domain as the bearer channel for control signaling and media transmission, and uses the Session Initiation Protocol (SIP, Session Initiation Protocol) as the call control signaling to realize the separation of service management, session control, and bearer access. Among them, SIP is an application layer control protocol for establishing, changing and terminating multimedia sessions or calls. These multimedia sessions include multimedia conferences, distance learning, and Internet telephony. At present, some international standard organizations, such as International Telecommunication Union-Telecommunications Standardization Sector (ITU-T, International Telecommunication Union-Telecommunications Standardization Sector) and European Telecommunications Standards Institute (ETSI, European Telecommunications Standards Institute), etc. also adopt IMS as their own defined next-generation network. core network. the

In the packet domain network, since session control and service management are separated, the packet domain network must provide necessary control for service management in order to ensure the smooth transmission of services. In the packet domain network, services can be divided into user subscription services and non-user subscription services. Among them, the provision of user contract services includes three basic steps:

First, define possible services or collections of services. the

Secondly, when the user orders/modifies the service subscription relationship, user-specific service data is created in the form of initial filter rules (iFC, InitialFilter Criteria). the

Among them, iFC is a kind of service trigger filtering rule. Specifically, iFC includes the user’s subscription service trigger condition and the corresponding application server (AS, Application Server) that executes the service. The service trigger condition is determined by the service point trigger (SPT, Service Point Trigger) description, the content of SPT includes: Request-URI (Request-URI), which identifies the resource pointed to by the SIP initial request message; SIP method (Method), which is used to indicate the type of the SIP initial request message; SIP header Domain (Header), used to contain information related to the SIP initial request message, can be any SIP header field and the content of the header field; session case (Session Case), there are three possible values, namely start, end or end Unregistered; Session Description (Session Description), indicating the contents of the Session Description Protocol (SDP, Session Description Protocol) field in the SIP method. the

Finally, when the IMS network element service-call session control function (S-CSCF, Serving-CallSession Control Function) receives the SIP initial request message, it executes iFC according to the current session situation and the received SIP initial request message, and determines the connection with The current session situation and the AS corresponding to the SIP initial request message, and deliver the received SIP initial request message to the determined AS. the

In the packet domain network, there are also non-user subscription services that can be provided. This is a type of network public service. Users can use this service without signing a contract with the operator. The non-user subscription service is a system service provided by the network. . For example, the black and white list service needs to filter each call of each user, and another example is the 17951 telephone service. Or the non-user contract service can be used only after the user who provides the service first signs the contract, such as 800 free service, the user (such as an enterprise) who announces the 800 free number to the operator applies for signing the 800 free service to obtain the 800 free number , and users who call the 800 free number do not need to sign a contract with the operator before using it; another example is the One Number (Universal Personal Telecommunications) service. Users who obtain the ONLY number and call the ONLY number do not need to sign a contract with the operator before using it. the

There are two ways to provide non-subscriber subscription services, which will be described separately below. the

The first way is to make the user have the iFC of the non-subscriber service, that is, corresponding to each user who may use the non-subscriber service, the non-subscriber service is used as the user's user contract service, and the iFC is set and processed according to the iFC. For example: the black-and-white list service provided by the packet domain network needs to filter each call of each user, so it is a non-user subscription service. At this time, each user can be configured with an iFC pointing to the AS that provides the blacklist and whitelist services. When the S-CSCF receives the SIP initial request message initiated by the user, the iFC configured to enable the SIP initial request message initiated by the user to continue To the AS that provides the black-and-white list service for processing, so as to filter the black-and-white list service for the SIP initial request message. the

When the packet domain network uses the first method to process non-user subscription services, there will be the following disadvantages: when the packet domain network provides a new non-user subscription service, it must be synchronized to all users who may implement this non-user subscription service. The iFC of the non-subscriber service has the disadvantages of low efficiency and poor scalability due to the relatively large number of users in the packet domain network. the

The second way is to use Public Service Identity (PSI, Public Service Identity) to describe the non-user subscription service. PSI represents the service identity provided by the packet domain network. When receiving the initial SIP request message initiated by the user, PSI routing is performed to process the non-user On the AS that subscribes to the service, process the SIP initial request message. For the specific process of invoking non-user subscription services through the PSI, refer to the introduction of relevant 3GPP standards. the

In most cases, the network side of the packet domain network can use the above two methods to effectively process the user's subscription service and user non-subscription service at the same time, and provide users with corresponding services. However, in some cases, the user subscription service and There may be a problem of service interaction between non-user-subscribed services. For example, if a user signs up for a call barring service, when the user dials the 800 free service, obviously, at this time, he does not want to trigger the call barring service. According to the above two In this way, there are two possible solutions:

The first solution: In the iFC of the call restriction service signed by the user, it is described that when the called number of the user calls is not the SPT of 800, that is, the SIP initial request message initiated by the user is connected to an AS with the call restriction service processing function The trigger condition is that the called number is not 800. In this way, when the user initiates the SIP initial request message of the 800 service, the 800 service initiated by the user will not be connected to the AS with the call restriction service processing function according to the iFC. the

The second solution: in the AS that has the call restriction service processing function, set the function not to process the 800 free service. In this way, when the user initiates the 800 free service and the iFC of the call restriction service is matched, the call is connected to the AS. Since the AS is configured not to process the 800 free service, it does not process the 800 free service initiated by the user. the

From the above two solutions, it can be seen that since non-user subscription services can be provided without user subscription, no matter whether the user subscription service is described in the iFC of the user subscription service or in the AS corresponding to the iFC of the user subscription service The interactive relationship between the service and the non-user subscription service must predetermine the relationship between the non-user subscription service and the user subscription service, such as 800 free service and call restriction service. Simultaneously add a new non-subscriber service attribute description in the iFC of the user subscription service related to the non-subscriber service or the AS corresponding to the iFC of the user subscription service, so as to solve the business between the user subscription service and the non-user subscription service interaction, such an implementation has the disadvantages of low efficiency and scalability. the

Contents of the invention

The embodiment of the present invention provides a system for processing services in a packet domain network. The system can centrally process user services and perform service interaction between user-subscribed services and non-user-subscribed services. the

The embodiment of the present invention also provides a device for processing services in a packet domain network. The device can centrally process user services and perform service interaction between user-subscribed services and non-user-subscribed services. the

The embodiment of the present invention also provides a method for processing services in the packet domain network. The method can centrally process user services and perform service interaction between user-subscribed services and non-user-subscribed services. the

The realization scheme of the embodiment of the present invention is as follows:

A system for processing services in a packet domain network, including a centralized service processing unit and a service trigger unit, wherein,

The service trigger unit is used to process the communication request and send a service trigger request to the centralized service processing unit;

The centralized service processing unit is configured to receive a service trigger request sent from the service trigger unit, and process non-subscriber services. the

A device for processing services in a packet domain network, including a service request trigger receiving module, a service processing module and a service trigger response module, wherein,

The service request trigger receiving module is used to receive a service trigger request;

The service processing module is used to send the processing result to the service trigger response module after processing all or part of the logic control of the non-user subscription service according to the content of the service trigger request received from the service request trigger receiving module;

The service trigger response module is configured to receive the processing result sent by the service processing module, generate a service trigger response and send it to the service trigger unit. the

A method for processing services in a packet domain network, the method comprising:

After receiving the service trigger request, the centralized service processing unit set in the packet domain network processes the non-subscriber service. the

It can be seen from the above scheme that in the system, device and method provided by the embodiments of the present invention, since a centralized service processing unit is set in the packet domain network, after the user sends a communication request, the packet domain network triggers the service trigger request to the centralized service In the processing unit, the service request is processed by the centralized service processing unit, and the non-subscriber service is executed. Therefore, the interaction relationship logic between non-user subscription service and user subscription service or/and non-user subscription service can be processed in the centralized service processing unit, so that when adding a new non-user subscription service in the packet domain network, it is not necessary to modify The interaction relationship described in the iFC of the user subscription service related to the non-user subscription service or the AS corresponding to the iFC of the related user subscription service, so as to more efficiently centralize the processing of user services, and more efficiently centralize the user subscription service and non-user subscription services Business interaction between contracted businesses improves efficiency and is easy to expand. the

Description of drawings

Fig. 1 is a schematic diagram of a system for processing services in a packet domain network according to an embodiment of the present invention;

Figure 2 is a schematic diagram of a device for general processing of services in a packet domain network according to an embodiment of the present invention;

Fig. 3 is a flow chart of a method for processing services in a packet domain network according to an embodiment of the present invention;

Fig. 4 is a flowchart of a method for processing services in a packet domain network in a preferred embodiment of the present invention;

FIG. 5 is a flowchart of a second method for processing services in a packet domain network according to a preferred embodiment of the present invention. the

Detailed ways

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

The system, device and method provided by the embodiments of the present invention are provided with a centralized service processing unit in the packet domain network, which is used to send a service trigger request to the centralized service processing unit when the packet domain network processes the current communication request, and the centralized service The processing unit processes the service trigger request. the

In the process of processing the service trigger request, after the centralized service processing unit processes the service interaction relationship between the relevant non-user subscription service and the user subscription service, it can obtain a service interaction instruction and provide it to the packet domain network for subsequent processing of the communication request The service control unit can also be triggered by the centralized service processing unit, after processing the service interaction relationship between the non-user subscription service and the user subscription service related to the communication request, the service interaction instruction is obtained, and provided to the packet domain network for subsequent communication request deal with. the

In the embodiment of the present invention, after the packet domain network receives the communication request, it may also execute iFC to match the communication request and then send a service trigger request to the centralized service processing unit, and the iFC may be set as required. the

Since a centralized service processing unit is set up in the packet domain network, the interaction relation logic between non-user subscription services and user subscription services or/and non-user subscription services can be processed in the centralized service processing unit. For a new non-user subscription service, the interaction relationship described in the AS corresponding to the iFC of the user subscription service related to the non-user subscription service or the iFC of the related user subscription service may not be modified, so as to process the user service more efficiently, Perform business interaction between user subscription services and non-user subscription services more efficiently, improve efficiency and be easy to expand. the

Figure 1 is a schematic diagram of a system for processing services in a packet domain network according to an embodiment of the present invention. The system includes a service configuration storage unit, a service control unit, a centralized service processing unit and a service trigger unit, wherein,

The service configuration storage unit is used to store various service configurations (Service Profile), and provides the stored service configuration when requested by the centralized business processing unit or business trigger unit. the

In this embodiment, the service configuration can be the service configuration of the user's subscription, including service trigger filter rules (such as iFC), and can also be the service configuration of the non-user subscription service, etc. In practical applications, the service configuration storage unit can be A network entity that stores data, such as a Home Subscriber Server (HSS, Home Subscriber Server) of a packet domain network. the

The service configuration storage unit and the centralized business processing unit use the E4 interface for interaction, and the protocols used include but are not limited to the Diameter protocol or the internal interface protocol; the service configuration storage unit and the business trigger unit use the E2 interface for interaction , the adopted protocol includes but not limited to Diameter protocol or internal interface protocol. the

The service triggering unit is configured to match the currently processed communication request according to the service trigger filtering rule, and send the service trigger request to the service control unit or the centralized service processing unit if the matching is successful. the

In this embodiment, the service triggering unit can be set in the packet domain network, such as set in the service-call session control function (S-CSCF, Serving-Call Session Control Function) service agent (Service Broker) or soft switch (Softswitch), etc. network entities. the

The EI interface is used for interaction between the service trigger unit and the service control unit, and the adopted protocols include but not limited to SIP, Intelligent Network Application Protocol (INAP, Interligent Network Application Protocol) and internal interface protocols. The E3 interface is used for interaction between the service trigger unit and the centralized service processing unit, and the adopted protocols include but not limited to SIP or internal interface protocols. the

The service control unit is used to receive a service trigger request triggered by the service trigger unit or the centralized service processing unit, and provide a service logic control function. Here, the services include user-subscribed services or/and non-user-subscribed services. the

In this embodiment, the service control unit may be a network entity such as an AS or a Service Control Function (SCF, Service Control Function) in a traditional intelligent network.

The centralized service processing unit is used to receive the service trigger request from the service trigger unit, and provide the non-user subscription service logic control function. the

In an embodiment, the centralized service processing unit may provide all or/and part of the service logic control functions of the non-user subscription service, providing all the service logic functions of the non-user subscription service refers to providing the complete service processing of the non-user subscription service , For example, it can completely provide all the business logic control functions of the black and white list business. Provide part of the business logic control function of the non-user subscription service refers to only provide part of the business processing of the non-user subscription service, for example, only provide the business trigger logic function of the non-user subscription service, while the other part of the non-user subscription service The processing is provided by the service control unit of the non-user subscription service invoked after the service trigger logic function is executed. For another example, only the non-user subscription service and the service interaction logic function of the user subscription service are provided, while the other non-user subscription service Part of the service processing is provided by the service control unit. For example, the service interaction processing part of 800 free service and user subscription service is processed by the centralized service processing unit, while the connection process of 800 free service is handled by the service control unit. In practical applications, the centralized service processing unit can be an independent network entity, or it can be located in a network entity such as S-CSCF, Service Broker or Service Capability Interaction Manager (SCIM, Service Capability Interaction Manager). the

The E5 interface is used for interaction between the centralized business processing unit and the business control unit, and the adopted protocol is INAP, Hyper Text Transfer Protocol (HTTP, Hyper Text Transfer Protocol) or internal interface protocol. the

In this embodiment, after the centralized service processing unit provides the non-user subscription service logic control function, it can send a service trigger request response to the service trigger unit, and the response carries a service interaction instruction for subsequent processing in the packet domain network. Indicates whether other related services can be called. the

Fig. 2 is a device diagram of a centralized service processing unit provided by an embodiment of the present invention, including a service request trigger receiving module, a service processing module and a service trigger response module, wherein,

The service request trigger receiving module is used to receive the service trigger request;

The business processing module is used to send the processing result to the business trigger response module after processing all or part of the logic control functions of the non-user subscribed business according to the content of the business trigger request received from the business request trigger receiving module;

The service trigger response module is used to receive the processing result sent by the service processing module, generate a service trigger response and send it to the service trigger unit. the

In the embodiment of the present invention, the service processing module may also include a service configuration data matching submodule and a service control unit triggering submodule, wherein,

The business configuration data matching sub-module is used to determine the corresponding business control unit according to the content of the business trigger request and the matching of the service configuration, and send it to the business control unit trigger sub-module;

The service control unit triggering submodule is used to trigger a determined service control unit. the

In the embodiment of the present invention, the centralized service processing unit further includes a service configuration data acquisition module, configured to acquire service configuration. the

In the embodiment of the present invention, the service trigger response module further includes a service interaction instruction generating submodule, configured to generate a service interaction instruction to be carried in the service trigger response according to the processing result sent by the service processing module. the

In the embodiment of the present invention, the service processing module further includes a service control unit receiving sub-module for receiving the processing result returned by the service control unit after the service control unit triggers the sub-module to trigger the determined service control unit. the

In the embodiment of the present invention, the service trigger response module further includes a service interaction instruction receiving submodule, configured to receive the service interaction instruction generated by the service control unit after processing the service, and carry the service interaction instruction in the service trigger response. the

Fig. 3 is the flow chart of the method for processing services in the packet domain network according to the embodiment of the present invention. A centralized service processing unit is set in the packet domain network, and the specific steps are:

Step 301, the service trigger unit processes the current communication request, and sends a service trigger request to the centralized service processing unit when the service trigger condition is met. the

In this step, the service trigger unit may send a service trigger request message, such as a SIP initial request message, to the centralized service processing unit unconditionally or after matching the iFC describing the centralized service processing unit. the

Step 302, the centralized service processing unit processes the service trigger request. the

In this step, the centralized service processing unit can process the set non-user subscription service logic function, and send a service trigger response to the service trigger unit. the

For example, the business logic of the black and white list is set in the centralized business processing unit. After receiving the service trigger request, the centralized business processing unit performs filtering of the business trigger request of the black and white list to complete the business logic control function of the black and white list. the

For another example, the logic control of the service interaction relationship between 800 free services and user subscription services is set in the centralized service processing unit. When the centralized service processing unit receives the service trigger request, it executes the logic control function of the service interaction relationship of 800 free services, The generated service interaction indication is carried in the service trigger request response and sent to the service trigger unit. the

For another example, the centralized service processing unit processes the received service trigger request according to the service configuration of the service configuration storage unit, triggers and invokes the service control unit, and the service control unit provides non-subscriber service logic control functions. the

That is to say, the centralized service processing unit can provide all or part of the service logic control functions for the service trigger request, or the service control unit triggered by the centralized service processing unit according to the processing of the service trigger request can provide all or part of the The business logic control function. the

In this step, the centralized business processing unit executes the processing of the business trigger request according to the service configuration of the service configuration storage unit in the following two ways:

The first processing method: the centralized service processing unit executes the processing of the service trigger request, requests the service configuration storage unit to obtain the service control unit described in the service configuration corresponding to the content of the service trigger request, and the centralized service processing unit triggers and calls the determined service control unit;

The second processing method: the centralized service processing unit executes the processing of the service trigger request, performs the matching of the service trigger request content and the service configuration from the service configuration storage unit, and if the matching is successful, obtains the service control unit described by the service configuration, and centralizes The service processing unit triggers the calling of the determined service control unit. the

The process that the centralized business processing unit obtains the service configuration from the service configuration storage unit can be direct or indirect. The indirect process means that the business trigger unit first obtains the service configuration from the service The trigger unit obtains the service configuration. the

The service configuration of the non-user subscription service obtained by the centralized service processing unit can be a service trigger filter rule similar to iFC, which describes the service trigger condition, such as "the called number contains 800", and describes the corresponding service control unit information. Furthermore, an "always execute" flag can be used in the service configuration to instruct the centralized service processing unit to "always" execute matching with the service configuration after receiving the service trigger request. In this way, after receiving the service trigger request, the centralized service processing unit can unconditionally match all acquired service configurations sequentially, or only match service configurations with the "always execute" flag. the

In practical applications, the centralized service processing unit can also directly perform address resolution on the called number carried in the service trigger request, such as querying the domain name system (Domain name System, DNS) server to obtain the corresponding service control unit, and the centralized service The processing unit triggers the calling of the determined service control unit. the

In practical applications, after the business interaction logic of the non-user subscription service and user subscription service set in the centralized service processing unit is executed, the centralized service processing unit will generate a service interaction instruction, or the centralized service processing unit will trigger the call After the business interaction relationship logic of the non-user subscription service and the user subscription service in the service control unit is executed, the service control unit will generate a service interaction instruction, which is carried in the message and passed to the service trigger unit, and the service trigger The unit or other network elements determine whether other services related to the service trigger request need to be executed according to the service interaction indication. the

In the embodiment of the present invention, there are two ways to describe the service interaction indication:

The first way of description: the service interaction indication may be a service identifier, which is used to identify the type or attribute of the non-subscriber service that has been executed. This is an implicit indication of business interaction. For example, when the non-user subscription service is 800 free service, it can be identified as 800, or free call, or a call exceeding the call limit, etc., when a network entity in the packet domain network, such as a service trigger unit or a service control unit receives the After the communication request of the service identification, it is determined whether to allow other services related to the 800 free service to be executed. the

The second description mode: service compatibility identifier, which is used to identify the service interaction compatibility information of non-user-subscribed services and user-subscribed services, which is an explicit service interaction indication. For example, the service compatibility identifier can be "allow or prohibit the execution of other services related to non-subscriber services" or "service compatibility level", etc. Wherein, the service compatibility level may be preset data corresponding to the non-user subscription service, for example, it may be used as the data in the service configuration of the non-user subscription service, when in the network entity in the packet domain network, such as in the service trigger unit, The "service compatibility level" carried in the received service trigger response is associated with the "service compatibility level" of other services to determine whether other services are allowed to be invoked. the

Several specific examples are given below to illustrate the method provided by the embodiment of the present invention. the

Embodiment one:

Assuming that the user initiates a 800 free service call, that is, sends a SIP access (INVITE) message carrying the 800 free calling number to the service trigger unit, and the service trigger unit forwards the message to the centralized service processing unit, and the centralized service processing unit executes the set 800 free call and After the user subscribes to the service interaction logic function of the service, the SIP INVITE message is sent to the service trigger unit, and the message carries the service interaction instruction. After the service trigger unit routes the message to the 800 service control unit, the 800 service control unit sends the message to the user Provide 800 free calling service. The specific process is shown in Figure 4. the

Fig. 4 is a flowchart of a method for processing services in a packet domain network according to a preferred embodiment of the present invention, the network entities involved include a service trigger unit, a centralized service processing unit and an 800 service control unit,

Step 401, the service triggering unit, such as the S-CSCF currently registered by the user, receives the SIP INVITE message carrying the 800 toll-free calling number sent by the user. the

Step 402, the service triggering unit sends the SIP INVITE message to the centralized service processing unit. the

In this step, as a preferred embodiment, the centralized service processing unit may be located in ServiceBroker or SCIM. the

In this step, the service triggering unit can unconditionally send the SIP INVITE message to the centralized service processing unit, or the service triggering unit can match the iFC describing the 800 free call service, obtain the corresponding centralized service processing unit, and send the SIP INVITE message to the centralized service processing unit. The message is sent to the centralized service processing unit. the

Step 403, after the centralized service processing unit receives the SIP INVITE message, it analyzes the called number, determines that the call is 800 free calling according to the 800 free calling number carried by the SIP INVITE message, and executes the set 800 free calling and user contract service After the logical function of the business interaction relationship, a corresponding business interaction instruction is generated. the

Step 404, the centralized service processing unit sends a SIP INVITE message to the service trigger unit, and the message carries a service interaction instruction. the

In this step, the centralized service processing unit can carry the service interaction indication through the caller preference information segment (Caller Perfernces) in the SIP INVITE message, and the service interaction indication can be a service identification, from the centralized service processing unit to the calling user The analysis of the sent called number, that is, according to the 800 toll-free number carried by the SIP INVITE message in step 303, it is determined that the user's preference is "hoping to send a 800 toll-free call", so the centralized service processing unit sets the corresponding feature label in CallerPerfernces (feature tag), you can identify the service identification indication. feature tag can use existing feature tags, such as "actor" or "priority", and can also expand the value of existing feature tag parameters, and can also expand new feature tags, such as "free (free)", "information service (information)" or "call center (callcenter)", etc. the

Step 405: After receiving the SIP INVITE message carrying the service interaction instruction, the service trigger unit performs session control processing of 800 free calls. In this step, the session control process for performing 800 free calls can be the iFC set for execution, and one of the service trigger conditions is described in the iFC as "the message does not contain the caller preference information segment feature tag representing the service interaction indication In this way, the SIP INVITE message received by the service triggering unit fails to match the iFC, and the service control unit described by the iFC, such as the AS of the call restriction service, will not be triggered. the

In this step, the service control unit performs subsequent session control processing on the SIP INVITE message, that is, the SIP INVITE message performs PSI routing according to the prior art, and triggers the 800 service control unit through PSI address resolution. the

Step 406, the service trigger unit sends the SIP INVITE message to the 800 service control unit, and the 800 service control unit processes the SIP INVITE message to provide 800 free call connection processing. the

Embodiment two:

Suppose the user initiates a 800 free call, that is, sends a SIP INVITE message carrying the 800 free calling number to the service trigger unit, and the service trigger unit forwards the SIP INVITE message to the centralized service processing unit, and the centralized service processing unit sends the SIP INVITE message according to the service configuration of the 800 free call service. The message is triggered to the 800 service control unit, and the 800 service control unit provides the user with 800 free call service. The specific process is shown in FIG. 5 . the

Fig. 5 is a flow chart of a method 2 for processing services in a packet domain network according to a preferred embodiment of the present invention. The involved network entities include a service trigger unit, a centralized service processing unit and an 800 service control unit, and the specific steps are:

Step 501, the service triggering unit, such as the S-CSCF currently registered by the user, receives the SIP INVITE message carrying the 800 free call sent by the user. the

Step 502, the service trigger unit sends the SIP INVITE message to the centralized service processing unit. the

In this step, as a preferred embodiment, the centralized service processing unit may be located in ServiceBroker or SCIM. the

In this step, the service triggering unit can unconditionally send the SIP INVITE message to the centralized service processing unit, or the service triggering unit can match the iFC describing the 800 free call service, obtain the corresponding centralized service processing unit, and send the SIP INVITE message to the centralized service processing unit. The message is sent to the centralized service processing unit. the

Step 503: After receiving the SIP INVITE message, the centralized service processing unit obtains the corresponding 800 service control unit according to the service configuration of the 800 service. the

In this step, the centralized service processing unit can match the content of the SIP INVITE message with the service configuration obtained from the service configuration storage unit. If the matching is successful, the corresponding 800 service control unit can be obtained; The unit requests, the request carries the 800 toll-free number, and the service configuration storage unit obtains the 800 service control unit from the service configuration corresponding to the 800 service and returns it to the centralized service processing unit. the

In addition, the centralized service processing unit can also perform address resolution on the 800 toll-free number, such as querying "800" from the DNS server to obtain the corresponding 800 service control unit.

Step 504, the centralized service processing unit sends the SIP INVITE message to the determined 800 service control unit. the

Steps 505, 800 The service control unit executes 800 the service logic control function, and returns a SIP INVITE message to the centralized service processing unit. the

Step 506, after the centralized service processing unit receives the SIPINVITE message sent by the 800 service control unit, it is determined that the 800 service control unit executes the 800 service logic control function successfully, and after performing the set 800 free call and the service interaction relationship logic function of the user's subscription service, A corresponding service interaction indication is generated. the

In this step, the service interaction indication may be a service compatibility identifier, such as a service compatibility level indicating that the 800 free call is performed, and the service compatibility level may be preset in the service configuration of the 800 service. the

Step 507, the centralized service processing unit returns a SIP INVITE message to the service trigger unit, carrying the generated service interaction identifier. the

Step 508: After receiving the SIP INVITE message carrying the service interaction instruction, the service trigger unit performs session control processing of 800 free calls. the

In this step, the session control process for performing 800 free calls can be the execution of the set iFC, which describes one of the service trigger conditions as "the service corresponding to the service compatibility level in the 800 service service configuration is not executed ”, so that the service control unit described by the iFC, such as the AS of the call restriction service, will not be triggered. the

In step 506 of Fig. 5, the logic function of the service interaction relationship between the set 800 free calls and user subscription services is carried out by the centralized service processing unit, which can also be carried out by the 800 service control unit. At this time, the process is carried out in step 505 , and generate a service interaction instruction, return the SIP INVITE message carrying the service interaction instruction to the centralized service processing unit, and then send the SIP INVITE message carrying the service interaction instruction to the service trigger unit by the centralized service processing unit. the

In addition, the service interaction instruction generated in FIG. 4 may also be a service compatibility identifier; similarly, the service interaction instruction generated in FIG. 5 may also be a service identifier. No more details here. the

It can be seen that the difference between the two embodiments of Fig. 4 and Fig. 5 is that in the embodiment of Fig. 4, the centralized service processing unit first processes the service interaction logic function of the non-subscriber service, and obtains the service interaction indication by analyzing the called number. That is, the call sequence of the subsequent service control unit is not changed, but the service interaction indication of the non-subscriber service obtained in advance, so that the network can handle the interaction between different services in the subsequent session control process; and the embodiment of Figure 5 Among them, the centralized service processing unit calls the service control unit of the non-subscriber service first, so that the network handles the interaction between different services in the subsequent session control process, that is, the calling sequence of the service control unit is changed. the

In addition, the centralized service processing unit provided by the embodiment of the present invention can process more than one non-user subscription service after receiving the service trigger request from the service trigger unit; The processing of service interaction between subscribed services is also applicable to the processing of service interaction between non-user subscribed services, and will not be repeated here. the

It can be seen from the system, device and method provided by the embodiments of the present invention that when a new non-user subscription service is provided in the packet domain network, it is only necessary to add an attribute description corresponding to the non-user subscription service in the centralized service processing unit, Including the service control unit that triggers the non-user subscription service or/and the service interaction relationship between the non-user subscription service and the user subscription service or/and the non-user subscription service, so as to provide the non-user subscription service including the service interaction function All or part of the business logic control function of the subscription service provides all qualified users with new non-user subscription services or business interaction problems with other services caused by the non-user subscription services, with good scalability and high efficiency. the

The above is the description of the specific embodiments of the present invention, and appropriate improvements can be made to the methods of the embodiments of the present invention during the specific implementation process to meet the specific needs of specific situations. Therefore, it can be understood that the specific implementation manners according to the present invention are only exemplary, and are not intended to limit the protection scope of the present invention.

Claims (14)

1. A system for processing services in a packet domain network, characterized in that it includes a centralized service processing unit and a service trigger unit, wherein, The service trigger unit is used to process the communication request and send the service trigger request to the centralized service processing unit; The centralized service processing unit is configured to receive a service trigger request sent from the service trigger unit, and process non-subscriber services; The system further includes a service control unit, configured to trigger and invoke the service control unit by the centralized service processing unit or the service trigger unit when the centralized service processing unit processes the service trigger request, and the service The control unit handles non-user subscription services. 2. The system according to claim 1, further comprising a service configuration storage unit for storing service configurations, and the stored service configurations are directly or indirectly sent to the centralized business processing unit; The centralized service processing unit is configured to determine the corresponding service control unit according to the service configuration from the service configuration storage unit when processing the service trigger request, and trigger to call the service control unit. 3. The system according to claim 1, further comprising a service configuration storage unit configured to determine the service corresponding to the content of the service trigger request sent by the centralized service processing unit according to the stored service configuration The control unit sends it to the centralized service processing unit; The centralized service processing unit is configured to, when processing the service trigger request, send the content of the service trigger request to the service configuration storage unit, receive the corresponding service control unit, and trigger to call the service control unit. 4. The system according to claim 1, wherein the centralized service processing unit further sends a service trigger request response carrying a service interaction indication to the service trigger unit. 5. A device for processing services in a packet domain network, characterized in that it includes a service request trigger receiving module, a service processing module and a service trigger response module, wherein, The service request trigger receiving module is used to receive a service trigger request; The service processing module is used to send the processing result to the service trigger response module after processing all or part of the logic control of the non-user subscription service according to the content of the service trigger request received from the service request trigger receiving module; The service trigger response module is configured to receive the processing result sent by the service processing module, generate a service trigger response and send it to the service trigger unit. 6. The device according to claim 5, wherein the service processing module further comprises a service configuration data matching submodule and a service control unit triggering submodule, wherein, The service configuration data matching sub-module is used to determine the corresponding service control unit according to the matching of the service trigger request content and the service configuration, and send it to the service control unit trigger sub-module; The service control unit triggering submodule is used to trigger a determined service control unit. 7. The device according to claim 6, further comprising a service configuration data acquisition module, configured to acquire service configuration. 8. The device according to claim 5, 6 or 7, wherein the service trigger response module further includes a service interaction instruction generating submodule for generating a service interaction instruction according to the processing result sent by the service processing module. The indication is carried in the service trigger request response. 9. The device according to claim 5, 6 or 7, wherein the service processing module further comprises a service control unit receiving submodule, which is used to trigger the service control unit determined by the service control unit triggering submodule to receive The processing result returned by the service control unit after processing the service. 10. The device according to claim 9, wherein the service trigger response module further includes a service interaction instruction receiving submodule for receiving the service interaction instruction in the processing result after the service control unit processes the service, and The service interaction indication is carried in the service trigger request response. 11. A method for processing services in a packet domain network, characterized in that the method comprises: After receiving the service trigger request, the centralized service processing unit set in the packet domain network processes the non-subscriber service; The process of processing non-subscriber services is as follows: Process the business logic control function of non-subscriber business, and generate a business trigger response; or, The service trigger function for processing non-user subscription services triggers the calling of the service control unit, and generates a service trigger response according to the processing result of the service control unit on the non-user subscription service. 12. The method according to claim 11, characterized in that, the process of triggering and calling the service control unit for the service trigger function of the non-subscriber service is as follows: According to the match between the content of the service trigger request and the service configuration, the corresponding service control unit is determined, and the service control unit is triggered to be invoked. 13. The method according to claim 12, wherein the process of determining the corresponding service control unit according to the matching of the service trigger request content and service configuration is: The centralized service processing unit requests the service configuration storage unit, and the service configuration storage unit returns the service control unit described by the service configuration matching the service trigger request content; or, The centralized service processing unit matches the content of the service trigger request with the service configuration obtained from the service configuration storage unit, and if the matching is successful, the service control unit described by the service configuration is obtained. 14. The method according to claim 11, wherein the centralized service processing unit or service control unit generates a service interaction instruction, which is carried in the service trigger request response.

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