WO2021213243A1 - 关联业务注册方法及相关设备、以及计算机可读存储介质 - Google Patents

关联业务注册方法及相关设备、以及计算机可读存储介质 Download PDF

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Publication number
WO2021213243A1
WO2021213243A1 PCT/CN2021/087483 CN2021087483W WO2021213243A1 WO 2021213243 A1 WO2021213243 A1 WO 2021213243A1 CN 2021087483 W CN2021087483 W CN 2021087483W WO 2021213243 A1 WO2021213243 A1 WO 2021213243A1
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Prior art keywords
network element
terminal
cscf network
cscf
registration
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PCT/CN2021/087483
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English (en)
French (fr)
Inventor
章璐
周小军
黄小兵
晏志敏
田会芹
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中兴通讯股份有限公司
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Priority to EP21792350.7A priority Critical patent/EP4123984A4/en
Publication of WO2021213243A1 publication Critical patent/WO2021213243A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1045—Proxies, e.g. for session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1033—Signalling gateways
    • H04L65/1036—Signalling gateways at the edge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1046—Call controllers; Call servers

Definitions

  • the embodiments of the present disclosure relate to the field of communication technology.
  • the IP Multimedia Subsystem is a subsystem that supports IP multimedia services proposed by the Third Generation Partnership Project (3GPP). It is the development direction of multimedia communications and can satisfy people and Communication between people.
  • the salient feature of IMS is the use of the Session Initial Protocol (SIP) system, under which communication has nothing to do with the access method.
  • SIP Session Initial Protocol
  • IMS has multiple capabilities such as separation of multimedia service control functions and carrying capacity, separation of calls and sessions, separation of applications and services, separation of services and networks, and integration of mobile networks and Internet services.
  • the IMS network includes the following basic network elements: Session Border Control (SBC)/Proxy-Call Session Control Function (P-CSCF), Interrogating-Call Session Control Function (P-CSCF) , I-CSCF), call session control function (Serving-Call Session Control Function, S-CSCF), and home subscriber server (Home Subscriber Server, HSS).
  • SBC Session Border Control
  • P-CSCF Proxy-Call Session Control Function
  • P-CSCF Interrogating-Call Session Control Function
  • I-CSCF Interrogating-Call Session Control Function
  • S-CSCF Call session control function
  • HSS Home Subscriber Server
  • a method for registering an associated service is provided, which is applied to a session edge controller network element, including: determining to send the associated service according to the ownership relationship between the terminal and the target S-CSCF network element stored locally The target S-CSCF network element to which the terminal of the registration request belongs; and, the related service registration request is sent to the target S-CSCF network element; the related service registration request is used to instruct the target S-CSCF network element to update according to the related service registration request The registration status of the terminal in the target S-CSCF network element.
  • an associated service registration method applied to an S-CSCF network element including: receiving an associated service registration request sent by a session edge controller network element; wherein the associated service registration request is made by The session edge controller network element determines the S-CSCF network element based on the locally stored attribution relationship between the terminal sending the associated service registration request and the S-CSCF network element, and sends the associated service registration request to the S-CSCF network element ; And, according to the related service registration request, update the registration status of the terminal in the S-CSCF network element.
  • a session edge controller network element including: one or more processors; a storage device, on which one or more programs are stored, when one or more programs are Or multiple processors are executed, so that one or more processors implement the above-mentioned associated service registration method; and, one or more I/O interfaces are connected between one or more processors and a storage device, and are configured to implement One or more processors interact with the information of the storage device.
  • an S-CSCF network element including: one or more processors; a storage device, on which one or more programs are stored, when one or more programs are Multiple processors are executed so that one or more processors implement the above-mentioned associated service registration method; and, one or more I/O interfaces are connected between one or more processors and a storage device, and are configured to implement one Or multiple processors interact with the information of the storage device.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, any one of the above-mentioned related service registration methods is implemented.
  • Fig. 1 is a flow chart of a signaling interaction of related service registration in the IMS of the related art.
  • Fig. 2 is a flowchart of a method for registering an associated service provided by an embodiment of the disclosure.
  • Fig. 3 is another flowchart of the associated service registration method provided by the embodiments of the disclosure.
  • FIG. 4 is another flowchart of the associated service registration method provided by the embodiments of the disclosure.
  • FIG. 5 is another flowchart of the associated service registration method provided by the embodiments of the disclosure.
  • FIG. 6 is another flowchart of the associated service registration method provided by the embodiments of the disclosure.
  • FIG. 7 is another flowchart of the associated service registration method provided by the embodiments of the disclosure.
  • FIG. 8 is a flowchart of a method for registering an associated service provided by an embodiment of the disclosure.
  • Fig. 9 is another flowchart of the associated service registration method provided by the embodiments of the present disclosure.
  • FIG. 10 is another flowchart of the associated service registration method provided by the embodiments of the disclosure.
  • FIG. 11 is another flowchart of the associated service registration method provided by the embodiments of the disclosure.
  • FIG. 12 is a block diagram of a composition of a session edge controller network element provided by an embodiment of the disclosure.
  • FIG. 13 is a block diagram of another composition of a session edge controller network element provided by an embodiment of the disclosure.
  • FIG. 14 is a block diagram of a composition of an S-CSCF network element provided by an embodiment of the disclosure.
  • FIG. 15 is a block diagram of another composition of an S-CSCF network element provided by an embodiment of the disclosure.
  • FIG. 16 is a block diagram of a composition of a computer-readable storage medium provided by an embodiment of the disclosure.
  • FIG. 17 is a schematic diagram of a signaling interaction for processing a refresh registration service initiated by a terminal according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic diagram of a signaling interaction for processing a logout service initiated by a terminal according to an embodiment of the present disclosure.
  • FIG. 19 is a schematic diagram of a signaling interaction of registration information synchronization between network elements after HSS recovery provided by an embodiment of the present disclosure.
  • FIG. 20 is a schematic diagram of another signaling interaction of registration information synchronization between network elements after HSS recovery provided by an embodiment of the present disclosure.
  • SBC/P-CSCF is located at the edge of the IMS core network and is the first connection point from the terminal to the network. It serves as the signaling agent and media agent of the IMS core network, and its main function is to isolate the access network from the IMS core network.
  • NAT Network Address Translation, network address translation
  • firewall traversal To achieve public and private network traversal, NAT (Network Address Translation, network address translation) traversal, firewall traversal, QoS (Quality of Service, quality of service) control, network security and other functions.
  • the I-CSCF provides functions such as hiding the internal topology information of the IMS network, S-CSCF allocation, and positioning of the called S-CSCF.
  • the S-CSCF is responsible for user registration, authentication, authorization, user service control and triggering, and interaction with the service layer.
  • HSS stores the subscription data, service profile, location information, authentication information, etc. of IMS users.
  • DRA Diameter Routing Agent, routing agent node
  • Diameter signaling addressing is used to implement Diameter signaling addressing, Diameter signaling transfer and routing management, and to provide single-entry access for mutual access between multiple Diameter network elements.
  • Fig. 1 it is a flow chart of a signaling interaction of related service registration in IMS in related technologies.
  • the SBC/P-CSCF will send the refresh registration or deregistration request to the I-CSCF, and the I-CSCF will initiate a LIR (Location-Info-Request) query request to the HSS to obtain the terminal’s ownership
  • the S-CSCF then forwards the refresh registration or deregistration request to the S-CSCF to which the terminal belongs by the I-CSCF, so that the S-CSCF updates the registration status of the terminal according to the refresh registration or deregistration request.
  • LIR Location-Info-Request
  • the inventors of the present disclosure have discovered that in the IMS network, the proportion of refresh registration requests initiated by user terminals in various related service registration requests reaches more than 85%.
  • the I-CSCF network element cannot find out the target S-CSCF network element to which the terminal sending the related service registration request belongs through the query, so that the terminal cannot initiate Related service registration requests such as cancellation and refresh registration are sent to the target S-CSCF network element, and normal maintenance of the terminal registration status cannot be completed.
  • the SBC/P-CSCF network element Especially when the associated service registration request initiated by the terminal is a refresh registration request, as shown in Figure 1, when the I-CSCF network element queries the HSS overtime, the SBC/P-CSCF network element returns a timeout response to the terminal. In the refresh registration period, if the S-CSCF network element does not receive the refresh registration request from the terminal, it will determine that the terminal is offline, clear the local registration information of the terminal in the S-CSCF network element, and pass it through the SBC/P-CSCF network element. Send a logout notification to the terminal. Further, when the terminal finds that it is offline, it will start the initial registration process. However, once the refresh registration evolves into the initial registration, and the HSS is still unavailable, it will cause a "registration signaling storm" in the IMS network, which will not only further increase the burden on the HSS, but also bring risks to the IMS network.
  • the embodiment of the present disclosure provides an associated service registration method, which can be applied to a session edge controller network element (which may be an SBC/P-CSCF network element).
  • a session edge controller network element which may be an SBC/P-CSCF network element.
  • FIG. 2 it is a flowchart of a method for registering an associated service provided by an embodiment of the present disclosure.
  • the method for registering an associated service may include step S110 and step S120.
  • step S110 the target S-CSCF network element to which the terminal sending the associated service registration request belongs is determined according to the ownership relationship between the multiple terminals stored locally and at least one S-CSCF network element.
  • step S120 the associated service registration request is sent to the target S-CSCF network element, so that the target S-CSCF network element updates the associated service registration request in the target S-CSCF network element according to the associated service registration request. Registration status.
  • the associated service may be a refresh registration service initiated by the user terminal, or a logout service initiated by the user terminal, or other services related to terminal registration, which are not limited in the embodiments of the present disclosure.
  • the attribution relationship between the terminal and the S-CSCF network element to which it belongs can be stored in the SBC/P-CSCF network element.
  • the S-CSCF network element to which the terminal belongs is the S-CSCF network element where the terminal is initially registered. In other words, when the terminal is initially registered successfully in the S-CSCF network element, its initially registered S-CSCF network element is determined to be the terminal Home S-CSCF network element.
  • the SBC/P-CSCF network element receives the related service registration request such as refresh registration and deregistration initiated by the terminal, in step S110, the ownership relationship between the terminal and the S-CSCF network element stored locally can be determined
  • the S-CSCF network element to which the terminal that sends the associated service registration request belongs that is, the target S-CSCF network element in step S110 and step S120; and in step S120, the associated service registration request sent by the terminal can be directly forwarded To the target S-CSCF network element. It is no longer necessary to forward the associated service registration request sent by the terminal to the I-CSCF network element, so that the I-CSCF queries the HSS to determine the target S-CSCF network element.
  • the associated service registration method through the control of the associated service registration initiated by the terminal in step S110 and step S120, even if the I-CSCF cannot access the HSS due to HSS failure or upgrade, the associated service registration can be smooth implement.
  • the associated service is a refresh registration service
  • the refresh registration request initiated by the terminal can also be forwarded to the target S-CSCF in time, so that the target S-CSCF updates the terminal that sent the associated service registration request in the target S-CSCF network element. Registration status, thus avoiding the occurrence of "registration signaling storm".
  • the inventors of the present disclosure have found that through the control of the associated service registration initiated by the terminal in step S110 and step S120, the associated service volume processed by network element devices such as I-CSCF can be reduced by more than 90%.
  • the embodiments of the present disclosure do not impose any limitation on the IMS network that uses the associated service registration method provided by the embodiments of the present disclosure.
  • the IMS network may be a long-term evolution voice bearer (Voice over Long-Term Evolution, VoLTE), Any one of VoNR (Voice over New Radio), fixed IMS network, and converged communication network.
  • VoLTE long-term evolution voice bearer
  • VoNR Voice over New Radio
  • the attribution relationship between the terminal and the S-CSCF network element to which it belongs is stored in the SBC/P-CSCF network element, and when the associated service registration request initiated by the terminal is received, the The related service registration request is directly forwarded to the S-CSCF network element to which the terminal belongs, so that the S-CSCF network element to which the terminal belongs can update the registration status of the terminal in time, thereby causing abnormal communication between I-CSCF and HSS due to HSS failure or upgrade At this time, the actual status of the terminal can be consistent with its registration status in the IMS network.
  • the SBC/P-CSCF network element directly forwards the related service registration request sent by the terminal to the S-CSCF network element, which can also avoid the "registration signaling" caused by the S-CSCF network element being unable to receive the refresh registration request of the terminal.
  • "Storm" at the same time reduces the business volume of registration services handled by network element devices such as I-CSCF. Therefore, it not only reduces the requirements for equipment in the IMS network, but also improves the stability of the IMS network.
  • the ownership relationship between the terminal stored locally in the SBC/P-CSCF network element and the S-CSCF network element can be dynamically maintained.
  • the terminal when the terminal is successfully registered in the S-CSCF network element, its initially registered S-CSCF network element is determined as the S-CSCF network element to which the terminal belongs. Therefore, when the initial registration of the terminal is successful, the attribution relationship between the initially successfully registered terminal and the S-CSCF network element to which the terminal belongs is stored locally in the SBC/P-CSCF network element.
  • the ownership relationship between the terminal and the original S-CSCF network element to which the terminal belongs can be deleted locally stored in the SBC/P-CSCF network element to simplify the local configuration of the SBC/P-CSCF network element
  • the attribution relationship information between the terminal and the S-CSCF network element can be deleted locally stored in the SBC/P-CSCF network element to simplify the local configuration of the SBC/P-CSCF network element.
  • the S-CSCF network element may send a successful initial registration response to the SBC/P-CSCF network element after the initial registration of the terminal is successful, and the S-CSCF network element
  • the identification information of the terminal is sent to the SBC/P-CSCF network element through the initial registration success response; the SBC/P-CSCF network element can determine the connection between the terminal and the S-CSCF network element to which the terminal belongs through the initial registration success response Attribution.
  • step S110 and step S120 the method may further include step S130 and step S140.
  • step S130 in response to the first response message that the terminal is initially successfully registered in the target S-CSCF network element, extract the identity of the target S-CSCF network element that sent the first response message from the first response message.
  • step S140 the attribution relationship between the terminal and the target S-CSCF network element that sent the first response message is stored locally.
  • the embodiment of the present disclosure does not impose any limitation on the identification of the S-CSCF network element, and as long as the S-CSCF network element can be identified through the identification, it belongs to the protection scope of the present disclosure.
  • the identifier of the S-CSCF network element may be the host name of the S-CSCF network element, or the IP address information of the S-CSCF network element.
  • the S-CSCF network element in addition to updating the registration status of the terminal sending the associated service registration request in its home S-CSCF network element (ie the target S-CSCF network element), it is also necessary to update the registration status of the terminal sending the associated service registration request.
  • the registration status of the terminal in other network elements in the IMS network is used to ensure the consistency of the registration status of the terminal in each network element in the IMS network.
  • the S-CSCF network element to which the terminal sending the associated service registration request belongs after updating the registration status of the terminal, it can send a response message of successful registration status update to the SBC/P-CSCF network element. In this way, the SBC/P-CSCF network element updates the local registration status of the terminal sending the associated service registration request in the SBC/P-CSCF network element according to the response message of the successful registration status update.
  • the method may further include step S150.
  • step S150 in response to the second response message indicating that the registration status of the terminal sending the associated service registration request in the target S-CSCF network element is successfully updated, the terminal sending the associated service registration request is updated in the current SBC/P-CSCF network element. Registration status in.
  • the SBC/P-CSCF network element may also forward the second response message that the registration status update is successful sent by the target S-CSCF network element to the terminal that initiates the associated service registration.
  • the method may further include step S160.
  • step S160 a second response message indicating that the registration status of the terminal that sent the associated service registration request is successfully updated in the target S-CSCF network element is sent to the terminal that sent the associated service registration request.
  • the associated service registration request may include an initial registration request, a refresh registration request, or a deregistration request.
  • the initial registration request, refresh registration request, and deregistration request initiated by the terminal may be controlled differently.
  • the SBC/P-CSCF network element receives the initial registration request sent by the terminal, the SBC/P-CSCF network element forwards the initial registration request to the I-CSCF network element to perform the initial registration process.
  • the SBC/P-CSCF network element receives the refresh registration request or the deregistration request sent by the terminal, it controls the corresponding associated service according to the steps S110 and S120 of the embodiment of the present disclosure.
  • step S110 the method may further include step S170 and step S180.
  • step S170 the registration status of the terminal sending the associated service registration request in the current SBC/P-CSCF network element is detected.
  • step S180 when the terminal sending the associated service registration request is unregistered in the current SBC/P-CSCF network element, the associated service registration request is sent to the I-CSCF network element; when the terminal sending the associated service registration request is unregistered When the current SBC/P-CSCF network element is in the registered state, steps S110 and S120 are executed.
  • the SBC/P-CSCF network element can directly send the received related service registration request sent by the terminal to the S-CSCF network element, or it can send the related service registration request to the S-CSCF network via the I-CSCF network element. Yuan.
  • the access can be done either through DRA or directly without DRA.
  • the SBC/P-CSCF network element can access the S-CSCF network element through the DRA, and the SBC/P-CSCF network element can also directly access the S-CSCF network element.
  • the I-CSCF network element can access the HSS through the DRA, and the I-CSCF network element can also directly access the HSS.
  • the SBC/P-CSCF network element in step S120 may first -The communication status between the CSCF network element and the S-CSCF network element is detected.
  • step S120 is executed to forward the related service registration request to the S-CSCF network element; when the communication is abnormal, the message can be reselected Forwarding path.
  • step S190 it is still another flowchart of the associated service registration method provided by the embodiments of the present disclosure, and the method may further include step S190.
  • step S190 when the communication with the target S-CSCF network element is abnormal, the associated service registration request is forwarded to the I-CSCF network element.
  • the embodiment of the present disclosure also provides an associated service registration method, which can be applied to the S-CSCF network element.
  • FIG. 8 it is a flowchart of a method for registering an associated service provided by an embodiment of the present disclosure, and the method may include step S210.
  • step S210 the registration status of the target terminal in the current S-CSCF network element is updated according to the received related service registration request sent by the SBC/P-CSCF network element.
  • the associated service registration request is an associated service registration request initiated by the target terminal sent by the SBC/P-CSCF network element according to any of the above-mentioned associated service registration methods provided in the embodiments of the present disclosure.
  • the SBC/P-CSCF network element in the IMS network will forward the associated service registration request to the S-CSCF network element.
  • the CSCF network element After the CSCF network element receives the associated service registration request, it can perform step S210 to update the registration status of the target terminal in the S-CSCF network element.
  • the associated service may be a refresh registration service initiated by the user terminal, or a deregistration service initiated by the user terminal, or other services related to terminal registration, which are not limited in the embodiments of the present disclosure.
  • the target terminal may be any terminal that initiates an associated service registration request, which is not limited in the embodiment of the present disclosure.
  • the IMS network may be any one of VoLTE, VoNR, fixed IMS network, and converged communication network.
  • the associated service registration request of the target terminal may be sent by the SBC/P-CSCF network element to the current S-CSCF network element through DRA, or it may be sent directly to the current S-CSCF network element by the SBC/P-CSCF network element.
  • the SBC/P-CSCF network element the embodiment of the present disclosure does not make any limitation on this.
  • the current S-CSCF network element can update the registration status of the target terminal according to the received related service registration request.
  • the S-CSCF network element can update the current S-CSCF registration status of the terminal according to the associated service registration request sent by the SBC/P-CSCF network element, so that when the HSS fails and upgrades
  • the actual status of the terminal can be kept consistent with its registration status in the IMS network; thus, it can not only avoid the "registration signaling storm" caused by the failure to receive the refresh registration request of the terminal, but also It can reduce the business volume of registration services processed by network element devices such as I-CSCF, reduce the requirements for devices in the IMS network, and improve the stability of the IMS network.
  • the S-CSCF network element updates the target terminal in the S-CSCF network element. After the registration status, it can send a successful registration status update response message to the SBC/P-CSCF network element, so that the SBC/P-CSCF network element updates the target terminal in the SBC/P-CSCF according to the successful registration status update response message. The registration status of the network element.
  • step S210 the method may further include step S220.
  • step S220 a response message indicating that the registration status of the target terminal in the current S-CSCF network element has been successfully updated is sent to the SBC/P-CSCF network element.
  • the current S-CSCF network element when the current S-CSCF network element communicates with the HSS normally, it can also update the updated registration status of the target terminal to the HSS.
  • step S210 the method may further include step S230 and step S240.
  • step S230 the communication status with the HSS is detected.
  • step S240 when the communication status with the HSS is normal, the updated registration status of the target terminal is updated to the HSS.
  • the S-CSCF network element can forward the registration information update request to the HSS through the DRA (it can also be a response message for the successful registration status update), or directly initiate a SAR (Server-Assignment-Request) update request to the HSS To update the registration status of the target terminal to HSS.
  • DRA can also be a response message for the successful registration status update
  • SAR Server-Assignment-Request
  • the current S-CSCF may not initiate a registration information update request to the HSS; it may also initiate a registration information update request to the HSS, but no additional processing will be performed after the registration information update times out .
  • the embodiments of the present disclosure do not make any limitation on this.
  • the HSS still stores the ownership relationship between the target terminal and the current S-CSCF network element.
  • the I-CSCF network element queries the HSS from the HSS in the initial registration process to find the ownership relationship between the target terminal and the current S-CSCF network element, and can re-allocate the current S-CSCF network element to the target For the terminal, after the target terminal completes the initial registration, the registration status of the target terminal in the SBC/P-CSCF, I-CSCF, S-CSCF, HSS and other network elements of the IMS network remains consistent.
  • the S-CSCF network element if the associated service registration request received by the current S-CSCF network element is a refresh registration request, and the refresh registration is completed according to any of the above-mentioned associated service registration methods, when the HSS returns to normal, the S-CSCF network element The updated registration status can be updated to HSS.
  • the S-CSCF network element may send a successful initial registration response to the SBC/P-CSCF network element after the initial registration of the terminal is successful, and the S-CSCF network element
  • the identification information is sent to the SBC/P-CSCF network element through the initial registration success response, so that the SBC/P-CSCF network element can determine the ownership relationship between the terminal and the S-CSCF network element through the initial registration success response .
  • the method may further include step S250.
  • step S250 after the initial registration of the terminal is successful in the current S-CSCF network element, the current S-CSCF network element sends an initial registration success response message to the SBC/P-CSCF network element, and the initial registration success response message includes The identity of the current S-CSCF network element.
  • the embodiments provided in the present disclosure do not make any limitation on the identification of the S-CSCF network element, as long as the S-CSCF network element can be identified through the identification, it belongs to the protection scope of the present disclosure.
  • the identifier of the S-CSCF network element may be the host name of the S-CSCF network element, or the IP address information of the S-CSCF network element.
  • FIG. 17 is a schematic diagram of a signaling interaction for processing a refresh registration service initiated by a terminal according to an embodiment of the present disclosure. As shown in Fig. 17, processing the refresh registration service initiated by the terminal may include E301 to E305.
  • the terminal initiates a refresh registration request within the refresh period, and sends the refresh registration request to the SBC/P-CSCF network element.
  • the SBC/P-CSCF network element forwards the refresh registration request to the S-CSCF network element without passing through the I-CSCF network element.
  • the S-CSCF network element After the S-CSCF network element receives the refresh registration request, it updates the terminal's local registration status and related timers in the S-CSCF network element, and directly returns a refresh registration success response to the SBC/P-CSCF network element.
  • E304 when the S-CSCF network element determines that it needs to update the registration information of the terminal to the HSS, it forwards it through the DRA or directly initiates a registration information update request to the HSS. At this time, the HSS is unavailable and the update timed out, and the S-CSCF network element does not proceed. Additional processing.
  • the SBC/P-CSCF network element After the SBC/P-CSCF network element receives the refresh registration success response, it updates the terminal's local registration status and related timers in the SBC/P-CSCF network element, and forwards the refresh registration success response to the terminal.
  • the terminal After receiving the refresh registration success response, the terminal can initiate a refresh registration request again in the next refresh registration cycle, instead of sending the initial registration request multiple times in a short period of time, thereby avoiding the "registration signaling storm".
  • FIG. 18 is a schematic diagram of a signaling interaction for processing a logout service initiated by a terminal according to an embodiment of the present disclosure. As shown in Figure 18, processing the logout service initiated by the terminal may include E401 to E405.
  • the terminal initiates a deregistration request and sends the deregistration request to the SBC/P-CSCF network element.
  • the SBC/P-CSCF network element forwards the cancellation request to the S-CSCF network element without passing through the I-CSCF network element.
  • the S-CSCF network element updates the terminal's local registration status and related timers in the S-CSCF network element, and directly returns a deregistration success response to the SBC/P-CSCF network element.
  • the S-CSCF network element determines that it needs to update the registration information of the terminal to the HSS, it forwards it through the DRA or directly initiates a registration information update request to the HSS. At this time, the HSS is unavailable and the update times out, and the S-CSCF network element does not proceed. Additional processing.
  • the SBC/P-CSCF network element After the SBC/P-CSCF network element receives the deregistration success response, it updates the terminal's local registration status and related timers in the SBC/P-CSCF network element, and forwards the deregistration success response to the terminal.
  • the terminal After the terminal receives the deregistration success response, it will not send deregistration requests multiple times within a short period of time, thereby avoiding the "registration signaling storm".
  • FIG. 19 is a schematic diagram of a signaling interaction of registration information synchronization between network elements after HSS recovery provided by an embodiment of the present disclosure.
  • the registration information synchronization between the network elements after the HSS restoration may include E501 to E516.
  • the terminal initiates an initial registration request, and sends the initial registration request to the SBC/P-CSCF network element.
  • the SBC/P-CSCF network element knows through inspection that the terminal is locally unregistered in the SBC/P-CSCF network element, and there is no corresponding registration information, and the initial registration request is forwarded to the I-CSCF network element.
  • the I-CSCF network element sends a UAR (User-Authorization-Request) request to query the HSS for the information of the S-CSCF network element to which the terminal belongs. Since the HSS still retains the previous registration information of the terminal, it can return the information of the last registered S-CSCF network element of the terminal to the I-CSCF network element.
  • UAR User-Authorization-Request
  • the I-CSCF network element forwards the initial registration request to the S-CSCF network element that the terminal registered last time.
  • the S-CSCF network element determines that the terminal is locally unregistered in the S-CSCF network element and does not have corresponding registration information, executes the initial registration process, and obtains authentication data from the HSS.
  • the S-CSCF network element returns a challenge response to the I-CSCF network element.
  • the I-CSCF network element forwards the challenge response to the SBC/P-CSCF network element.
  • the SBC/P-CSCF network element forwards the challenge response to the terminal.
  • the terminal extracts the authentication information from the challenge response, authenticates the network side, and then re-initiates an initial registration request to the SBC/P-CSCF.
  • the SBC/P-CSCF network element forwards the initial registration request to the I-CSCF network element.
  • the I-CSCF network element obtains the information of the S-CSCF network element to which the terminal belongs by querying the HSS.
  • the I-CSCF network element forwards the initial registration request to the S-CSCF to which the terminal belongs.
  • the S-CSCF network element performs an authentication operation based on the information in the initial registration request, and returns an initial registration success response to the I-CSCF network element.
  • the initial registration success response may carry the host name of the S-CSCF network element.
  • the S-CSCF network element sends a registration status update request to the HSS to update the user's registration information, where the registration status update request can carry the host name of the S-CSCF network element.
  • the I-CSCF forwards the initial registration success response to the SBC/P-CSCF network element.
  • the SBC/P-CSCF network element saves the host name of the S-CSCF in the initial registration success response, and forwards the initial registration success response to the terminal.
  • the terminal completes the initial registration process, and the registration status of the terminal in the SBC/P-CSCF network element, S-CSCF network element, and HSS is kept synchronized.
  • FIG. 20 is a schematic diagram of another signaling interaction of registration information synchronization between network elements after HSS recovery provided by an embodiment of the present disclosure. As shown in Figure 20, the registration information synchronization between the network elements after the HSS is restored may include E601 to E605.
  • the terminal initiates a refresh registration request to the SBC/P-CSCF network element within the refresh registration period.
  • the SBC/P-CSCF network element forwards the refresh registration request to the S-CSCF network element without going through the I-CSCF network element.
  • the S-CSCF network element updates the local registration status and related timers of the S-CSCF network element, and directly returns a refresh registration success response to the SBC/P-CSCF network element.
  • E604 when the S-CSCF network element determines that it needs to update the registration information of the terminal to the HSS, it forwards it through DRA or directly initiates a registration information update request to the HSS. At this time, the HSS changes from unavailable to available, and the update is successful. HSS refreshes the user's registration message.
  • the SBC/P-CSCF network element After the SBC/P-CSCF network element receives the refresh registration success response, it updates the terminal's local registration status and related timers in the SBC/P-CSCF network element, and forwards the refresh registration success response to the terminal.
  • the terminal After receiving the refresh registration success response, the terminal can send the refresh registration request again in the next refresh registration cycle, instead of sending the initial registration request multiple times in a short period of time, thereby avoiding the "registration signaling storm".
  • the embodiment of the present disclosure also provides a session edge controller network element, which may be an SBC/P-CSCF network element, as shown in FIG. 12, which is a composition of the session edge controller network element provided by the embodiment of the present disclosure
  • the session edge controller network element 100 may include: one or more processors 101; a storage device 102, on which one or more programs are stored, and the one or more programs can be used by the one or more processors 101 Execute, so that the one or more processors 101 implement at least one step executed by the SBC/P-CSCF network element in any of the above-mentioned associated service registration methods provided by the embodiments of the present disclosure; and, one or more I/Os
  • the interface 103 is connected between the one or more processors 101 and the storage device 102, and is configured to implement information interaction between the one or more processors 101 and the storage device 102.
  • the processor 101 is a device with data processing capabilities, including but not limited to a central processing unit (CPU), etc.
  • the storage device 102 is a device with data storage capabilities, including but not limited to random access memory (RAM, more Specifically, such as SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); I/O interface (read-write interface) 103 is connected to the processor 101 and the storage device Between 102, the information interaction between the processor 101 and the storage device 102 can be realized, which includes but is not limited to a data bus (Bus) and the like.
  • Bus data bus
  • the processor 101, the storage device 102, and the I/O interface 103 may be connected to each other through a bus, and then connected to other components of the session edge controller network element 100.
  • the embodiment of the present disclosure also provides a session edge controller network element, which may be an SBC/P-CSCF network element, as shown in FIG. 13, which is another type of the session edge controller network element provided by the embodiment of the disclosure
  • the session edge controller network element 300 may include a fast route processing module 301 and a signaling processing module 302.
  • the fast route processing module 301 may be configured to determine the target S-CSCF network element to which the terminal sending the associated service registration request belongs based on the belonging relationship between the terminal and the target S-CSCF network element stored locally.
  • the signaling processing module 302 can be configured to send an associated service registration request to the target S-CSCF network element; the associated service registration request is used to instruct the target S-CSCF network element to update the terminal in the target S-CSCF network element according to the associated service registration request.
  • the registration status in the meta is used to instruct the target S-CSCF network element to update the terminal in the target S-CSCF network element according to the associated service registration request.
  • the fast route processing module 301 may also be configured to extract the target S-CSCF network element identifier from the response message in response to a response message that the terminal is initially successfully registered in the target S-CSCF network element.
  • the fast route processing module 301 may also be configured to detect the communication status between the SBC/P-CSCF network element and the target S-CSCF network element.
  • the signaling processing module 302 may also be configured to forward the associated service registration request to the I-CSCF network element according to the instruction of the fast route processing module 301.
  • the signaling processing module 302 may also be configured to send the initial registration request of the terminal to the I-CSCF network element.
  • the signaling processing module 302 may also be configured to send a response message indicating that the registration status of the terminal in the target S-CSCF network element is successfully updated to the terminal according to the instruction of the fast routing processing module 301.
  • the embodiment of the present disclosure also provides an S-CSCF network element, as shown in FIG. 14, which is a composition block diagram of the S-CSCF network element provided by the embodiment of the present disclosure.
  • the S-CSCF network element 200 may include: one or Multiple processors 201; a storage device 202, on which one or more programs are stored, and the one or more programs are executed by the one or more processors 201, so that the one or more processors 201 implement the implementation of the present disclosure At least one step performed by the S-CSCF network element in any of the above-mentioned associated service registration methods provided by the example; and, one or more I/O interfaces 203 are connected to the one or more processors 201 and the storage device 202 In between, it is configured to implement information interaction between the one or more processors 201 and the storage device 202.
  • the processor 201 is a device with data processing capabilities, including but not limited to a central processing unit (CPU), etc.
  • the storage device 202 is a device with data storage capabilities, including but not limited to random access memory (RAM, more Specifically, such as SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); I/O interface (read-write interface) 203 is connected to the processor 201 and the storage device Between 202, the information interaction between the processor 201 and the storage device 202 can be realized, which includes but is not limited to a data bus (Bus) and the like.
  • Bus data bus
  • the processor 201, the storage device 202, and the I/O interface 203 are connected to each other through a bus, and further connected to other components of the S-CSCF network element 200.
  • the embodiment of the present disclosure also provides an S-CSCF network element. As shown in FIG. 15, it is another composition block diagram of the S-CSCF network element provided by the embodiment of the present disclosure.
  • the S-CSCF network element 400 may include a registration status Update module 401 and signaling processing module 402.
  • the signaling processing module 402 may be configured to receive the associated service registration request sent by the session edge controller network element.
  • the registration status update module 401 may be configured to update the registration status of the terminal in the S-CSCF network element 400 according to an associated service registration request.
  • the associated service registration request is determined by the session edge controller network element based on the locally stored attribution relationship between the terminal sending the associated service registration request and the S-CSCF network element 400. , And send the related service registration request to the S-CSCF network element 400.
  • the associated service registration request is an associated service registration request initiated by the terminal and sent by the SBC/P-CSCF network element according to any of the above-mentioned associated service registration methods provided in the embodiments of the present disclosure.
  • the embodiment of the present disclosure also provides a computer-readable storage medium, as shown in FIG. 16, which is a block diagram of a composition of the computer-readable storage medium provided by the embodiment of the present disclosure.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, any one of the above-mentioned related service registration methods provided in the embodiments of the present disclosure is implemented.
  • Such software may be distributed on a computer-readable storage medium, and the computer-readable storage medium may include a computer storage medium (or a non-transitory medium) and a communication medium (or a transitory medium).
  • the term computer storage medium includes volatile and non-volatile memory implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Sexual, removable and non-removable media.
  • Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, tape, magnetic disk storage or other magnetic storage device, or Any other medium used to store desired information and that can be accessed by a computer.
  • a communication medium usually contains computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium. .

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Abstract

本公开实施例涉及通信技术领域，并提供一种关联业务注册方法，包括：根据本地存储的终端与目标呼叫会话控制功能S-CSCF网元之间的归属关系，确定发送关联业务注册请求的终端所归属的目标S-CSCF网元；以及，将关联业务注册请求发送到该目标S-CSCF网元；关联业务注册请求用于指示该目标S-CSCF网元根据关联业务注册请求，更新该终端在该目标S-CSCF网元中的注册状态。本公开实施例还提供了一种会话边缘控制器网元、S-CSCF网元，以及计算机可读存储介质。

Description

关联业务注册方法及相关设备、以及计算机可读存储介质 技术领域
本公开实施例涉及通信技术领域。
背景技术
IP多媒体子系统(IP Multimedia Subsystem，IMS)是第三代合作伙伴计划(Third Generation Partnership Project，3GPP)提出的支持IP多媒体业务的子系统，是多媒体通信的发展方向，能很好地满足人与人之间的通信。IMS的显著特征是采用了会话初始协议(Session Initial Protocol，SIP)体系，在该体系下通信与接入方式无关。IMS具备多媒体业务的控制功能与承载能力分离、呼叫与会话分离、应用与服务分离、业务与网络分离、移动网与因特网业务融合等多种能力。
IMS网络中包括以下基本网元：会话边缘控制器(Session Border Control，SBC)/代理呼叫会话控制功能(Proxy-Call Session Control Function，P-CSCF)、查询会话控制功能(Interrogating-Call Session Control Function，I-CSCF)、呼叫会话控制功能(Serving-Call Session Control Function，S-CSCF)，以及归属签约用户服务器(Home Subscriber Server，HSS)。
发明内容
根据本公开实施例的一个方面，提供一种关联业务注册方法，应用于会话边缘控制器网元，包括：根据本地存储的终端与目标S-CSCF网元之间的归属关系，确定发送关联业务注册请求的终端所归属的目标S-CSCF网元；以及，将关联业务注册请求发送到目标S-CSCF网元；关联业务注册请求用于指示目标S-CSCF网元根据关联业务注册请求，更新终端在目标S-CSCF网元中的注册状态。
根据本公开实施例的另一个方面，提供一种关联业务注册方法，应用于S-CSCF网元，包括：接收会话边缘控制器网元发送的关联业 务注册请求；其中，关联业务注册请求是由会话边缘控制器网元根据本地存储的发送关联业务注册请求的终端与S-CSCF网元之间的归属关系，确定S-CSCF网元，并将关联业务注册请求发送给S-CSCF网元的；以及，根据关联业务注册请求，更新终端在S-CSCF网元中的注册状态。
根据本公开实施例的另一个方面，提供一种会话边缘控制器网元，包括：一个或多个处理器；存储装置，其上存储有一个或多个程序，当一个或多个程序被一个或多个处理器执行，使得一个或多个处理器实现上述的关联业务注册方法；以及，一个或多个I/O接口，连接在一个或多个处理器与存储装置之间，配置为实现一个或多个处理器与存储装置的信息交互。
根据本公开实施例的另一个方面，提供一种S-CSCF网元，包括：一个或多个处理器；存储装置，其上存储有一个或多个程序，当一个或多个程序被一个或多个处理器执行，使得一个或多个处理器实现上述的关联业务注册方法；以及，一个或多个I/O接口，连接在一个或多个处理器与存储装置之间，配置为实现一个或多个处理器与存储装置的信息交互。
根据本公开实施例的另一个方面，提供一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现上述任意一种关联业务注册方法。
附图说明
图1为相关技术的IMS中的关联业务注册的一种信令交互的流程图。
图2为本公开实施例提供的关联业务注册方法的一种流程图。
图3为本公开实施例提供的关联业务注册方法的另一种流程图。
图4为本公开实施例提供的关联业务注册方法的又一种流程图。
图5为本公开实施例提供的关联业务注册方法的再一种流程图。
图6为本公开实施例提供的关联业务注册方法的再一种流程图。
图7为本公开实施例提供的关联业务注册方法的再一种流程图。
图8为本公开实施例提供的关联业务注册方法的一种流程图。
图9为本公开实施例提供的关联业务注册方法的另一种流程图。
图10为本公开实施例提供的关联业务注册方法的又一种流程图。
图11为本公开实施例提供的关联业务注册方法的再一种流程图。
图12为本公开实施例提供的会话边缘控制器网元的一种组成框图。
图13为本公开实施例提供的会话边缘控制器网元的另一种组成框图。
图14为本公开实施例提供的S-CSCF网元的一种组成框图。
图15为本公开实施例提供的S-CSCF网元的另一种组成框图。
图16为本公开实施例提供的计算机可读存储介质的一种组成框图。
图17是本公开实施例提供的对终端发起的刷新注册业务进行处理的一种信令交互的示意图。
图18是本公开实施例提供的对终端发起的注销业务进行处理的一种信令交互的示意图。
图19是本公开实施例提供的HSS恢复后的各网元之间的注册信息同步的一种信令交互的示意图。
图20是本公开实施例提供的HSS恢复后的各网元之间的注册信息同步的另一种信令交互的示意图。
具体实施方式
为使本领域的技术人员更好地理解本公开的技术方案，下面结合附图对本公开实施例提供的关联业务注册方法、会话边缘控制器网元、S-CSCF网元，以及计算机可读存储介质进行详细描述。
在下文中将参考附图更充分地描述示例实施例，但是所述示例实施例可以以不同形式来体现且不应当被解释为限于本文阐述的实施例。反之，提供这些实施例的目的在于使本公开透彻和完整，并将使本领域技术人员充分理解本公开的范围。
在不冲突的情况下，本公开各实施例及实施例中的各特征可相 互组合。
如本文所使用的，术语“和/或”包括一个或多个相关列举条目的任何和所有组合。
本文所使用的术语仅用于描述特定实施例，且不意欲限制本公开。如本文所使用的，单数形式“一个”和“该”也意欲包括复数形式，除非上下文另外清楚指出。还将理解的是，当本说明书中使用术语“包括”和/或“由……制成”时，指定存在所述特征、整体、步骤、操作、元件和/或组件，但不排除存在或添加一个或多个其它特征、整体、步骤、操作、元件、组件和/或其群组。
除非另外限定，否则本文所用的所有术语(包括技术和科学术语)的含义与本领域普通技术人员通常理解的含义相同。还将理解，诸如那些在常用字典中限定的那些术语应当被解释为具有与其在相关技术以及本公开的背景下的含义一致的含义，且将不解释为具有理想化或过度形式上的含义，除非本文明确如此限定。
在IMS中，SBC/P-CSCF位于IMS核心网络边缘，是终端到网络的第一个连接点，其作为IMS核心网的信令代理和媒体代理，主要作用是隔离接入网和IMS核心网，实现公私网穿越、NAT(Network Address Translation，网络地址转换)穿越、防火墙穿越、QoS(Quality of Service，服务质量)控制、网络安全等功能。I-CSCF作为IMS系统对外的联系点，提供隐藏IMS网络内部拓扑信息、S-CSCF分配、被叫S-CSCF定位等功能。S-CSCF负责用户的注册鉴权、授权，以及用户的业务控制和触发、与业务层进行交互。HSS存储IMS用户的签约数据、服务简介(Service Profile)、位置信息、鉴权信息等。DRA(Diameter Routing Agent，路由代理节点)用于实现Diameter信令寻址、Diameter的信令转接以及路由管理，以及为多个Diameter网元之间的互相访问提供单一入口的访问。
如图1所示，其为相关技术中IMS中的关联业务注册的一种信令交互的流程图。当终端发起刷新注册或注销请求时，SBC/P-CSCF会将刷新注册或注销请求发送给I-CSCF，由I-CSCF向HSS发起LIR(Location-Info-Request)查询请求，获得终端归属的S-CSCF，然 后由I-CSCF将刷新注册或注销请求转发给该终端归属的S-CSCF，以使S-CSCF根据刷新注册或注销请求更新终端的注册状态。
经本公开的发明人研究发现，在IMS网络中，用户终端发起的刷新注册请求在各种关联业务注册请求中的比例达到85％以上。而当HSS故障或升级导致I-CSCF网元无法访问HSS时，I-CSCF网元无法通过查询获知发送该关联业务注册请求的终端所归属的目标S-CSCF网元，从而无法将终端发起的注销、刷新注册等关联业务注册请求发送到目标S-CSCF网元，也就无法完成终端注册状态的正常维护。特别是当终端发起的关联业务注册请求为刷新注册请求时，如图1所示，当I-CSCF网元查询HSS超时，经SBC/P-CSCF网元向终端返回超时响应。而在刷新注册周期内，若S-CSCF网元未收到终端的刷新注册请求，就会判定终端离线，清除终端在S-CSCF网元本地的注册信息，并经SBC/P-CSCF网元向终端发送注销通知。进一步地，当终端发现离线后，会启动初始注册流程。但是，一旦刷新注册演变为初始注册，而HSS仍不可用，就会在IMS网络中引发“注册信令风暴”，不仅进一步加重HSS负担，还会给IMS网络带来风险。
本公开实施例提供一种关联业务注册方法，可应用于会话边缘控制器网元(其可以是SBC/P-CSCF网元)。如图2所示，其为本公开实施例提供的关联业务注册方法的一种流程图，该关联业务注册方法可包括步骤S110和步骤S120。
在步骤S110中，根据本地存储的多个终端与至少一个S-CSCF网元之间的归属关系，确定发送关联业务注册请求的终端所归属的目标S-CSCF网元。
在步骤S120中，将关联业务注册请求发送到目标S-CSCF网元，以使目标S-CSCF网元根据关联业务注册请求，更新发送关联业务注册请求的终端在目标S-CSCF网元中的注册状态。
在一些实施例中，关联业务可以是用户终端发起的刷新注册业务，也可以是用户终端发起的注销业务，还可以是其它与终端注册有关的业务，本公开实施例对此不作任何限定。
根据本公开提供的实施例，可将终端与其归属的S-CSCF网元之 间的归属关系存储在SBC/P-CSCF网元中。终端归属的S-CSCF网元即终端初始注册所在的S-CSCF网元，换言之，当终端在S-CSCF网元中初始注册成功，其初始注册的S-CSCF网元便被确定为该终端归属的S-CSCF网元。当SBC/P-CSCF网元接收到终端发起的刷新注册、注销等关联业务注册请求时，在步骤S110中，通过本地存储的该终端与S-CSCF网元之间的归属关系，就能够确定发送关联业务注册请求的该终端所归属的S-CSCF网元，即步骤S110和步骤S120中的目标S-CSCF网元；并在步骤S120中，可将该终端发送的关联业务注册请求直接转发到目标S-CSCF网元。不再需要将该终端发送的关联业务注册请求转发到I-CSCF网元，以由I-CSCF查询HSS确定目标S-CSCF网元。
根据本公开实施例提供的关联业务注册方法，通过步骤S110和步骤S120中对终端发起的关联业务注册的控制，即使因HSS故障或升级导致I-CSCF无法访问HSS时，关联业务注册也能够顺利执行。此外，当关联业务为刷新注册业务时，终端发起的刷新注册请求也能够及时转发到目标S-CSCF，使得目标S-CSCF更新发送该关联业务注册请求的终端在目标S-CSCF网元中的注册状态，从而避免了“注册信令风暴”的产生。此外，经本公开的发明人研究得到，通过步骤S110和步骤S120中对终端发起的关联业务注册的控制，能够使I-CSCF等网元设备处理的关联业务量下降90％以上。
还需要说明的是，本公开实施例对使用本公开实施例提供的关联业务注册方法的IMS网络不作任何限定，例如，IMS网络可以是长期演进语音承载(Voice over Long-Term Evolution，VoLTE)、VoNR(Voice over New Radio)、固定IMS网络，以及融合通信网络中的任意一者。
根据本公开实施例提供的关联业务注册方法，在SBC/P-CSCF网元中存储终端与其归属的S-CSCF网元的归属关系，当接收到该终端发起的关联业务注册请求时，能够将该关联业务注册请求直接转发到该终端归属的S-CSCF网元，使该终端归属的S-CSCF网元能够及时更新终端的注册状态，从而在HSS故障或升级导致I-CSCF与HSS通信 异常时，终端的实际状态能够与其在IMS网络中的注册状态保持一致。此外，由SBC/P-CSCF网元直接将终端发送的关联业务注册请求转发到S-CSCF网元，还能够避免因为S-CSCF网元无法接收终端的刷新注册请求所引起的“注册信令风暴”，同时减少了I-CSCF等网元设备处理的注册类业务的业务量，因此，既降低了对IMS网络中的设备的要求，也提升了IMS网络的稳定性。
在一些实施例中，可对SBC/P-CSCF网元本地存储的终端与S-CSCF网元之间的归属关系进行动态维护。如前文所述，当终端在S-CSCF网元中初始注册成功，其初始注册的S-CSCF网元便被确定为该终端归属的S-CSCF网元。因此，当终端初始注册成功时，将初始注册成功的终端与该终端归属的S-CSCF网元的归属关系存储在SBC/P-CSCF网元本地。当终端从IMS中注销后，可将SBC/P-CSCF网元本地存储的该终端与该终端原归属的S-CSCF网元的归属关系删除，以精简在SBC/P-CSCF网元本地配置的终端和S-CSCF网元之间的归属关系信息。作为一种可选的实施方式，在一些实施例中，S-CSCF网元在终端初始注册成功后，可向SBC/P-CSCF网元发送初始注册成功的响应，并将S-CSCF网元的标识信息通过该初始注册成功的响应发送给SBC/P-CSCF网元；SBC/P-CSCF网元就能够通过该初始注册成功的响应确定该终端与其归属的S-CSCF网元之间的归属关系。
在一些实施例中，如图3所示，其为本公开实施例提供的关联业务注册方法的另一种流程图，除步骤S110和步骤S120以外，该方法还可包括步骤S130和步骤S140。
在步骤S130中，响应于该终端在目标S-CSCF网元中初始注册成功的第一响应消息，从第一响应消息中提取发送该第一响应消息的目标S-CSCF网元的标识。
在步骤S140中，将该终端与发送该第一响应消息的目标S-CSCF网元之间的归属关系存储在本地。
需要说明的是，本公开实施例对S-CSCF网元的标识不作任何限定，只要能够通过该标识对S-CSCF网元进行识别都属于本公开的保护范围。例如，S-CSCF网元的标识可以是S-CSCF网元的主机名，或 S-CSCF网元的IP地址信息。
在一些实施例中，除了更新发送关联业务注册请求的终端在其归属的S-CSCF网元(即目标S-CSCF网元)中的注册状态之外，还需要更新发送关联业务注册请求的该终端在IMS网络中的其它网元中的注册状态，以保证终端在IMS网络中的各网元中的注册状态的一致性。作为一种可选的实施方式，发送关联业务注册请求的终端所归属的S-CSCF网元在更新终端的注册状态后，可向SBC/P-CSCF网元发送注册状态更新成功的响应消息，以使SBC/P-CSCF网元根据该注册状态更新成功的响应消息更新发送关联业务注册请求的终端在SBC/P-CSCF网元本地的注册状态。
在一些实施例中，如图4所示，其为本公开实施例提供的关联业务注册方法的又一种流程图，在步骤S120之后，该方法还可包括步骤S150。
在步骤S150中，响应于发送关联业务注册请求的终端在目标S-CSCF网元中的注册状态更新成功的第二响应消息，更新发送关联业务注册请求的终端在当前SBC/P-CSCF网元中的注册状态。
在一些实施例中，SBC/P-CSCF网元还可将目标S-CSCF网元发送的注册状态更新成功的第二响应消息转发到发起关联业务注册的终端。
在一些实施例中，如图5所示，其为本公开实施例提供的关联业务注册方法的再一种流程图，该方法还可包括步骤S160。
在步骤S160中，将发送关联业务注册请求的终端在目标S-CSCF网元中的注册状态更新成功的第二响应消息发送到发送关联业务注册请求的终端。
在一些实施例中，关联业务注册请求可包括初始注册请求、刷新注册请求，或注销请求。
在一些实施例中，作为一种可选的实施方式，可对终端发起的初始注册请求和刷新注册请求、注销请求进行区别控制。当SBC/P-CSCF网元接收到终端发送的初始注册请求时，SBC/P-CSCF网元将该初始注册请求转发到I-CSCF网元，以执行初始注册流程。当 SBC/P-CSCF网元接收到终端发送刷新注册请求或注销请求时，按照本公开实施例的步骤S110和步骤S120控制相应的关联业务。
如图6所示，其为本公开实施例提供的关联业务注册方法的再一种流程图，在步骤S110之前，该方法还可包括步骤S170和步骤S180。
在步骤S170中，检测发送关联业务注册请求的终端在当前SBC/P-CSCF网元中的注册状态。
在步骤S180中，当发送关联业务注册请求的终端在当前SBC/P-CSCF网元中为未注册状态时，将关联业务注册请求发送到I-CSCF网元；当发送关联业务注册请求的终端在当前SBC/P-CSCF网元中为已注册状态时，执行步骤S110和S120。
根据本公开提供的实施例，在IMS网络的SBC/P-CSCF网元与S-CSCF网元之间具有多条消息转发路径。例如，SBC/P-CSCF网元可以直接将接收到的终端发送的关联业务注册请求发送到S-CSCF网元，也可以经过I-CSCF网元将该关联业务注册请求发送到S-CSCF网元。此外，当IMS网络中的各个网元之间需要互相访问时，既可以通过DRA进行访问，也可以不通过DRA而直接进行访问。例如，SBC/P-CSCF网元可以通过DRA访问S-CSCF网元，SBC/P-CSCF网元还可以直接访问S-CSCF网元。再如，I-CSCF网元可以通过DRA访问HSS，I-CSCF网元也可以直接访问HSS。本公开实施例对此不作任何限定。
作为一种可选的实施方式，在一些实施例中，在步骤S120中的SBC/P-CSCF网元将终端发送的关联业务注册请求转发到S-CSCF网元之前，可先对SBC/P-CSCF网元与S-CSCF网元之间的通信状态进行检测，当通信正常时，则执行步骤S120将关联业务注册请求转发到S-CSCF网元；当通信异常时，则可重新选择消息转发路径。
在一些实施例中，如图7所示，其为本公开实施例提供的关联业务注册方法的再一种流程图，该方法还可包括步骤S190。
在步骤S190中，当与目标S-CSCF网元的通信异常时，将关联业务注册请求转发到I-CSCF网元。
本公开实施例还提供一种关联业务注册方法，可应用于S-CSCF 网元。如图8所示，其为本公开实施例提供的关联业务注册方法的一种流程图，该方法可包括步骤S210。
在步骤S210中，根据接收到的SBC/P-CSCF网元发送的关联业务注册请求，更新目标终端在当前S-CSCF网元中的注册状态。
根据本公开提供的实施例，关联业务注册请求是由SBC/P-CSCF网元根据本公开实施例提供的上述任意一种关联业务注册方法发送的目标终端发起的关联业务注册请求。
根据本公开提供的实施例，IMS网络中的SBC/P-CSCF网元在接收到目标终端发送的关联业务注册请求后，会将该关联业务注册请求转发到S-CSCF网元，当S-CSCF网元接收到该关联业务注册请求后，可执行步骤S210更新目标终端在该S-CSCF网元中的注册状态。
根据本公开提供的实施例，关联业务可以是用户终端发起的刷新注册业务，也可以是用户终端发起的注销业务，还可以是其它与终端注册有关的业务，本公开实施例对此不作任何限定。目标终端可以是发起关联业务注册请求的任意一个终端，本公开实施例对此不作任何限定。
本公开提供的实施例对IMS网络不作任何限定，例如，IMS网络可以是VoLTE、VoNR、固定IMS网络、融合通信网络中的任意一者。
在一些实施例中，目标终端的关联业务注册请求可以是SBC/P-CSCF网元通过DRA发送到当前S-CSCF网元的，也可以是SBC/P-CSCF网元直接发送到当前S-CSCF网元的，本公开实施例对此不作任何限定。
在一些实施例中，即使因HSS故障或升级导致I-CSCF无法访问HSS时，当前S-CSCF网元也能够根据接收到关联业务注册请求，对目标终端的注册状态进行更新。
根据本公开实施例提供的关联业务注册方法，S-CSCF网元可根据SBC/P-CSCF网元发送的关联业务注册请求更新终端在当前S-CSCF注册状态，从而使得当HSS故障和升级导致I-CSCF与HSS通信异常时，终端的实际状态与其在IMS网络中的注册状态也能够保持一致；从而，既能够避免因为无法接收终端的刷新注册请求所引起的“注册 信令风暴”，还能够减少I-CSCF等网元设备处理的注册类业务的业务量，降低了对IMS网络中的设备的要求，提升了IMS网络的稳定性。
为了确保终端在IMS网络中的各网元的注册状态的一致性，作为一种可选的实施方式，在一些实施例中，S-CSCF网元在更新目标终端在该S-CSCF网元中的注册状态后，可向SBC/P-CSCF网元发送注册状态更新成功的响应消息，以使SBC/P-CSCF网元根据该注册状态更新成功的响应消息更新目标终端在SBC/P-CSCF网元的注册状态。
在一些实施例中，如图9所示，其为本公开实施例提供的关联业务注册方法的另一种流程图，在步骤S210之后，该方法还可包括步骤S220。
在步骤S220中，向SBC/P-CSCF网元发送目标终端在当前S-CSCF网元中的注册状态更新成功的响应消息。
在一些实施例中，当前S-CSCF网元在与HSS通信状态正常时，还可将更新后的目标终端的注册状态更新到HSS。
在一些实施例中，如图10所示，其为本公开实施例提供的关联业务注册方法的又一种流程图，在步骤S210之后，该方法还可包括步骤S230和步骤S240。
在步骤S230中，检测与HSS的通信状态。
在步骤S240中，当与HSS的通信状态正常时，将更新后的目标终端的注册状态更新到HSS。
在一些实施例中，S-CSCF网元可以通过DRA向HSS转发注册信息更新请求(也可以是注册状态更新成功的响应消息)，也可以直接向HSS发起SAR(Server-Assignment-Request)更新请求，以将目标终端的注册状态更新到HSS。本公开实施例对此不作任何限定。
在一些实施例中，当与HSS的通信状态异常时，当前S-CSCF可以不向HSS发起注册信息更新请求；也可以向HSS发起注册信息更新请求，但在注册信息更新超时后不进行额外处理。本公开实施例对此不作任何限定。
在一些实施例中，若当前S-CSCF网元接收到的关联业务注册请求为注销请求，当HSS恢复正常后，HSS仍存储有目标终端和当前 S-CSCF网元的归属关系。当目标终端再次发起初始注册请求时，I-CSCF网元在初始注册流程中从HSS中查询到目标终端和当前S-CSCF网元的归属关系，可重新将当前S-CSCF网元分配给目标终端，在目标终端完成初始注册后，目标终端在IMS网络的SBC/P-CSCF、I-CSCF、S-CSCF、HSS等网元中的注册状态保持一致。
在一些实施例中，若当前S-CSCF网元接收到的关联业务注册请求为刷新注册请求，并按照上述任意一种关联业务注册方法完成刷新注册，当HSS恢复正常后，S-CSCF网元可将更新后的注册状态更新到HSS。
作为一种可选的实施方式，在一些实施例中，S-CSCF网元在终端初始注册成功后，可向SBC/P-CSCF网元发送初始注册成功的响应，并将S-CSCF网元的标识信息通过该初始注册成功的响应发送给SBC/P-CSCF网元，使得SBC/P-CSCF网元能够通过该初始注册成功的响应确定终端与该S-CSCF网元之间的归属关系。
在一些实施例中，如图11所示，其为本公开实施例提供的关联业务注册方法的再一种流程图，该方法还可包括步骤S250。
在步骤S250中，终端在当前S-CSCF网元中初始注册成功后，该当前S-CSCF网元向SBC/P-CSCF网元发送初始注册成功的响应消息，该初始注册成功的响应消息包括当前S-CSCF网元的标识。
本公开提供的实施例对S-CSCF网元的标识不作任何限定，只要能够通过该标识对S-CSCF网元进行识别都属于本公开的保护范围。例如，S-CSCF网元的标识可以是S-CSCF网元的主机名，或S-CSCF网元的IP地址信息。
下面结合具体实例对本公开实施例提供的关联业务注册方法进行详细说明。
实例一
图17是本公开实施例提供的对终端发起的刷新注册业务进行处理的一种信令交互的示意图。如图17所示，对终端发起的刷新注册业务进行处理可包括E301～E305。
在E301中，终端在初始注册成功后，在刷新周期内发起刷新注 册请求，并将刷新注册请求发送给SBC/P-CSCF网元。
在E302中，SBC/P-CSCF网元将刷新注册请求转发到S-CSCF网元，而不经过I-CSCF网元。
在E303中，S-CSCF网元接收到刷新注册请求后，更新终端在S-CSCF网元本地的注册状态和相关定时器，直接返回刷新注册成功响应给SBC/P-CSCF网元。
在E304中，当S-CSCF网元确定需要更新终端的注册信息到HSS，通过DRA转发或者直接向HSS发起注册信息更新请求，而此时HSS不可用，更新超时，S-CSCF网元不进行额外处理。
在E305中，SBC/P-CSCF网元接收到刷新注册成功响应后，更新终端在SBC/P-CSCF网元本地的注册状态和相关定时器，并转发刷新注册成功响应给终端。
终端在收到刷新注册成功响应后，可在下一个刷新注册周期再次发起刷新注册请求，而不会在短时间内多次发送初始注册请求，从而避免了“注册信令风暴”。
实例二
图18是本公开实施例提供的对终端发起的注销业务进行处理的一种信令交互的示意图。如图18所示，对终端发起的注销业务进行处理可包括E401～E405。
在E401中，终端在初始注册成功后，发起注销请求，并将注销请求发送给SBC/P-CSCF网元。
在E402中，SBC/P-CSCF网元将注销请求转发到S-CSCF网元，而不经过I-CSCF网元。
在E403中，S-CSCF网元接收到注销请求后，更新终端在S-CSCF网元本地的注册状态和相关定时器，直接返回注销成功响应给SBC/P-CSCF网元。
在E404中，当S-CSCF网元确定需要更新终端的注册信息到HSS，通过DRA转发或者直接向HSS发起注册信息更新请求，而此时HSS不可用，更新超时，S-CSCF网元不进行额外处理。
在E405中，SBC/P-CSCF网元接收到注销成功响应后，更新终端 在SBC/P-CSCF网元本地的注册状态和相关定时器，并转发注销成功响应给终端。
终端收到注销成功响应后，不会在短时间内多次发送注销请求，从而避免了“注册信令风暴”。
实例三
图19是本公开实施例提供的HSS恢复后的各网元之间的注册信息同步的一种信令交互的示意图。如图19所示，HSS恢复后的各网元之间的注册信息同步可包括E501～E516。
在E501中，终端发起初始注册请求，并将初始注册请求发送给SBC/P-CSCF网元。
在E502中，SBC/P-CSCF网元通过检查得知该终端在SBC/P-CSCF网元本地是未注册状态，没有相应的注册信息，则将初始注册请求转发给I-CSCF网元。
在E503中，I-CSCF网元发送UAR(User-Authorization-Request)请求，以向HSS查询终端归属的S-CSCF网元的信息。由于HSS仍然保留终端之前的注册信息，可返回终端最近一次注册的S-CSCF网元的信息给I-CSCF网元。
在E504中，I-CSCF网元转发初始注册请求给终端最近一次注册的S-CSCF网元。
在E505中，S-CSCF网元确定该终端在S-CSCF网元本地是未注册状态，没有相应的注册信息，执行初始注册流程，并从HSS获取鉴权数据。
在E506中，S-CSCF网元返回挑战响应给I-CSCF网元。
在E507中，I-CSCF网元将挑战响应转发到SBC/P-CSCF网元。
在E508中，SBC/P-CSCF网元将挑战响应转发到终端。
在E509中，终端从挑战响应中提取鉴权信息，并对网络侧进行鉴权，之后重新向SBC/P-CSCF发起初始注册请求。
在E510中，SBC/P-CSCF网元将初始注册请求转发到I-CSCF网元。
在E511中，I-CSCF网元通过查询HSS获得终端归属的S-CSCF 网元的信息。
在E512中，I-CSCF网元将初始注册请求转发到终端归属的S-CSCF。
在E513中，S-CSCF网元根据初始注册请求中的信息，执行鉴权操作，返回初始注册成功响应给I-CSCF网元，初始注册成功响应可携带有S-CSCF网元的主机名。
在E514中，S-CSCF网元将注册状态更新请求发送给HSS，以更新用户的注册信息，其中，注册状态更新请求可携带有S-CSCF网元的主机名。
在E515中，I-CSCF将初始注册成功响应转发给SBC/P-CSCF网元。
在E516中，SBC/P-CSCF网元保存初始注册成功响应中的S-CSCF的主机名，并将初始注册成功响应转发给终端。
终端完成初始注册过程，且终端在SBC/P-CSCF网元、S-CSCF网元和HSS中的注册状态保持了同步。
实例四
图20是本公开实施例提供的HSS恢复后的各网元之间的注册信息同步的另一种信令交互的示意图。如图20所示，HSS恢复后的各网元之间的注册信息同步可包括E601～E605。
在E601中，在初始注册成功后，终端在刷新注册周期内向SBC/P-CSCF网元发起刷新注册请求。
在E602中，SBC/P-CSCF网元将刷新注册请求转发到S-CSCF网元，而不经过I-CSCF网元。
在E603中，S-CSCF网元接收到刷新注册请求后，更新S-CSCF网元本地的注册状态和相关定时器，并直接返回刷新注册成功响应给SBC/P-CSCF网元。
在E604中，当S-CSCF网元确定需要更新终端的注册信息到HSS，通过DRA转发或者直接向HSS发起注册信息更新请求，此时HSS从不可用变为可用，更新成功，HSS刷新用户的注册信息。
在E605中，SBC/P-CSCF网元接收到刷新注册成功响应后，更新 终端在SBC/P-CSCF网元本地的注册状态和相关定时器，并转发刷新注册成功响应给终端。
终端收到刷新注册成功响应后，可在下一个刷新注册周期再次发送刷新注册请求，而不会在短时间内多次发送初始注册请求，从而避免了“注册信令风暴”。
本公开实施例还提供一种会话边缘控制器网元，其可以是SBC/P-CSCF网元，如图12所示，其为本公开实施例提供的会话边缘控制器网元的一种组成框图，会话边缘控制器网元100可包括：一个或多个处理器101；存储装置102，其上存储有一个或多个程序，该一个或多个程序可被该一个或多个处理器101执行，使得该一个或多个处理器101实现本公开实施例提供的上述任意一种关联业务注册方法中由SBC/P-CSCF网元执行的至少一个步骤；以及，一个或多个I/O接口103，连接在该一个或多个处理器101与存储装置102之间，配置为实现该一个或多个处理器101与存储装置102的信息交互。
其中，处理器101为具有数据处理能力的器件，其包括但不限于中央处理器(CPU)等；存储装置102为具有数据存储能力的器件，其包括但不限于随机存取存储器(RAM，更具体如SDRAM、DDR等)、只读存储器(ROM)、带电可擦可编程只读存储器(EEPROM)、闪存(FLASH)；I/O接口(读写接口)103连接在处理器101与存储装置102间，能实现处理器101与存储装置102的信息交互，其包括但不限于数据总线(Bus)等。
在一些实施例中，处理器101、存储装置102和I/O接口103可通过总线相互连接，进而与会话边缘控制器网元100的其它组件连接。
上文已经对本公开实施例提供的关联业务注册方法进行了详细的描述，此处不再赘述。
本公开实施例还提供一种会话边缘控制器网元，其可以是SBC/P-CSCF网元，如图13所示，其为本公开实施例提供的会话边缘控制器网元的另一种组成框图，会话边缘控制器网元300可包括快速路由处理模块301和信令处理模块302。
快速路由处理模块301可被配置为根据本地存储的终端与目标S-CSCF网元之间的归属关系，确定发送关联业务注册请求的终端所归属的目标S-CSCF网元。
信令处理模块302可被配置为将关联业务注册请求发送到目标S-CSCF网元；关联业务注册请求用于指示目标S-CSCF网元根据关联业务注册请求，更新终端在目标S-CSCF网元中的注册状态。
在一些实施例中，快速路由处理模块301还可被配置为响应于终端在目标S-CSCF网元中初始注册成功的响应消息，从该响应消息中提取目标S-CSCF网元的标识。
在一些实施例中，快速路由处理模块301还可被配置为检测SBC/P-CSCF网元与目标S-CSCF网元的通信状态。
在一些实施例中，信令处理模块302还可被配置为根据快速路由处理模块301的指示，将关联业务注册请求转发到I-CSCF网元。
在一些实施例中，信令处理模块302还可被配置为将终端的初始注册请求发送到I-CSCF网元。
在一些实施例中，信令处理模块302还可被配置为根据快速路由处理模块301的指示，将终端在目标S-CSCF网元中的注册状态更新成功的响应消息发送到终端。
本公开实施例还提供一种S-CSCF网元，如图14所示，其为本公开实施例提供的S-CSCF网元的一种组成框图，S-CSCF网元200可包括：一个或多个处理器201；存储装置202，其上存储有一个或多个程序，该一个或多个程序被该一个或多个处理器201执行，使得该一个或多个处理器201实现本公开实施例提供的上述任意一种关联业务注册方法中由S-CSCF网元执行的至少一个步骤；以及，一个或多个I/O接口203，连接在该一个或多个处理器201与存储装置202之间，配置为实现该一个或多个处理器201与存储装置202的信息交互。
其中，处理器201为具有数据处理能力的器件，其包括但不限于中央处理器(CPU)等；存储装置202为具有数据存储能力的器件，其包括但不限于随机存取存储器(RAM，更具体如SDRAM、DDR等)、 只读存储器(ROM)、带电可擦可编程只读存储器(EEPROM)、闪存(FLASH)；I/O接口(读写接口)203连接在处理器201与存储装置202间，能实现处理器201与存储装置202的信息交互，其包括但不限于数据总线(Bus)等。
在一些实施例中，处理器201、存储装置202和I/O接口203通过总线相互连接，进而与S-CSCF网元200的其它组件连接。
上文已经对本公开实施例提供的关联业务注册方法进行了详细的描述，此处不再赘述。
本公开实施例还提供一种S-CSCF网元，如图15所示，其为本公开实施例提供的S-CSCF网元的另一种组成框图，S-CSCF网元400可包括注册状态更新模块401和信令处理模块402。
信令处理模块402可被配置为接收会话边缘控制器网元发送的关联业务注册请求。
注册状态更新模块401可被配置为根据关联业务注册请求，更新终端在该S-CSCF网元400中的注册状态。在一些实施例中，关联业务注册请求是由会话边缘控制器网元根据本地存储的发送关联业务注册请求的终端与S-CSCF网元400之间的归属关系，确定该S-CSCF网元400，并将关联业务注册请求发送给该S-CSCF网元400的。在一些实施例中，关联业务注册请求是由SBC/P-CSCF网元根据本公开实施例提供的上述任意一种关联业务注册方法发送的由终端发起的关联业务注册请求。
本公开实施例还提供一种计算机可读存储介质，如图16所示，其为本公开实施例提供的计算机可读存储介质的一种组成框图。计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现本公开实施例提供的上述任意一种关联业务注册方法。
上文已经对本公开实施例提供的关联业务注册方法进行了详细的描述，此处不再赘述。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中，在以上描述中提及的功能 模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读存储介质上，计算机可读存储介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其它数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其它存储器技术、CD-ROM、数字多功能盘(DVD)或其它光盘存储、磁盒、磁带、磁盘存储或其它磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其它的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其它传输机制之类的调制数据信号中的其它数据，并且可包括任何信息递送介质。
本文已经公开了示例实施例，并且虽然采用了具体术语，但它们仅用于并仅应当被解释为一般说明性含义，并且不用于限制的目的。在一些实例中，对本领域技术人员显而易见的是，除非另外明确指出，否则可单独使用与特定实施例相结合描述的特征、特性和/或元素，或可与其它实施例相结合描述的特征、特性和/或元件组合使用。因此，本领域技术人员将理解，在不脱离由所附的权利要求阐明的本公开的范围的情况下，可进行各种形式和细节上的改变。

Claims (13)

  1. 一种关联业务注册方法，应用于会话边缘控制器网元，包括：
    根据本地存储的终端与目标呼叫会话控制功能S-CSCF网元之间的归属关系，确定发送关联业务注册请求的所述终端所归属的所述目标S-CSCF网元；以及
    将所述关联业务注册请求发送到所述目标S-CSCF网元；所述关联业务注册请求用于指示所述目标S-CSCF网元根据所述关联业务注册请求，更新所述终端在所述目标S-CSCF网元中的注册状态。
  2. 根据权利要求1所述的方法，在根据本地存储的所述终端与所述目标S-CSCF网元之间的所述归属关系，确定发送所述关联业务注册请求的所述终端所归属的所述目标S-CSCF网元之前，还包括：
    响应于第一响应消息，从所述第一响应消息中提取发送所述第一响应消息的所述目标S-CSCF网元的标识；其中，所述第一响应消息表征所述终端在所述目标S-CSCF网元中初始注册成功；以及
    本地存储所述终端与所述目标S-CSCF网元之间的所述归属关系。
  3. 根据权利要求1至2中任意一项所述的方法，在根据本地存储的所述终端与所述目标S-CSCF网元之间的所述归属关系，确定发送所述关联业务注册请求的所述终端所归属的所述目标S-CSCF网元之前，还包括：
    确定所述终端在所述会话边缘控制器网元中的注册状态；
    响应于确定所述终端在所述会话边缘控制器网元中的所述注册状态为未注册状态，将所述关联业务注册请求发送到查询会话控制功能I-CSCF网元；以及
    响应于确定所述终端在所述会话边缘控制器网元中的所述注册状态为已注册状态，获取本地存储的所述终端与所述目标S-CSCF网元之间的所述归属关系。
  4. 根据权利要求3所述的方法，在将所述关联业务注册请求发 送到所述目标S-CSCF网元之后，还包括：
    响应于第二响应消息，更新所述终端在所述会话边缘控制器网元中的所述注册状态；其中，所述第二响应消息表征所述终端在所述目标S-CSCF网元中的所述注册状态更新成功。
  5. 根据权利要求4所述的方法，还包括：将所述第二响应消息发送到所述终端。
  6. 根据权利要求1所述的方法，还包括：
    响应于确定与所述目标S-CSCF网元之间的通信异常，将所述关联业务注册请求转发到I-CSCF网元。
  7. 一种关联业务注册方法，应用于呼叫会话控制功能S-CSCF网元，包括：
    接收会话边缘控制器网元发送的关联业务注册请求；其中，所述关联业务注册请求是由所述会话边缘控制器网元根据本地存储的发送所述关联业务注册请求的终端与所述S-CSCF网元之间的归属关系，确定所述S-CSCF网元，并将所述关联业务注册请求发送给所述S-CSCF网元的；以及
    根据所述关联业务注册请求，更新所述终端在所述S-CSCF网元中的注册状态。
  8. 根据权利要求7所述的方法，在根据所述关联业务注册请求，更新所述终端在所述S-CSCF网元中的所述注册状态之后，还包括：
    向所述会话边缘控制器网元发送第二响应消息，所述第二响应消息表征所述终端在所述S-CSCF网元中的所述注册状态更新成功。
  9. 根据权利要求7或8所述的方法，在根据所述关联业务注册请求，更新所述终端在所述S-CSCF网元中的所述注册状态之后，还包括：
    确定与归属签约用户服务器HSS的通信状态；以及
    响应于确定与所述HSS的所述通信状态正常，将更新后的所述终端在所述S-CSCF网元中的所述注册状态发送到所述HSS。
  10. 根据权利要求7或8所述的方法，在接收所述会话边缘控制器网元发送的所述关联业务注册请求之前，还包括：
    响应于所述终端在所述S-CSCF网元中初始注册成功，向所述会话边缘控制器网元发送第一响应消息；其中，所述第一响应消息表征所述终端在所述S-CSCF网元中初始注册成功，且所述第一响应消息包括所述S-CSCF网元的标识。
  11. 一种会话边缘控制器网元，包括：
    一个或多个处理器；
    存储装置，其上存储有一个或多个程序，当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现根据权利要求1至6中任意一项所述的关联业务注册方法；以及
    一个或多个I/O接口，连接在所述一个或多个处理器与所述存储装置之间，配置为实现所述一个或多个处理器与所述存储装置的信息交互。
  12. 一种呼叫会话控制功能S-CSCF网元，包括：
    一个或多个处理器；
    存储装置，其上存储有一个或多个程序，当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现根据权利要求7至10中任意一项所述的关联业务注册方法；以及
    一个或多个I/O接口，连接在所述一个或多个处理器与所述存储装置之间，配置为实现所述一个或多个处理器与所述存储装置的信息交互。
  13. 一种计算机可读存储介质，其上存储有计算机程序，所述 计算机程序被处理器执行时实现根据权利要求1至10中任意一项所述的关联业务注册方法。
PCT/CN2021/087483 2020-04-22 2021-04-15 关联业务注册方法及相关设备、以及计算机可读存储介质 WO2021213243A1 (zh)

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