IMS supplementary service signing method, system, device and medium

Abstract

The invention relates to the technical field of IMS (IP Multimedia Subsystem) communication, and discloses an IMS supplementary service signing method, an IMS supplementary service signing system, IMS supplementary service signing equipment and a medium. The IMS supplementary service signing method comprises: receiving a supplementary service signing message forwarded by a base station from a terminal, the supplementary service signing message carrying a keyword of a supplementary service requested to be signed by the terminal, and the supplementary service being a service for setting a standard service signed by the terminal; generating a supplementary service order containing a subscription message corresponding to the supplementary service according to a keyword of the supplementary service carried in the supplementary service subscription message, and sending the supplementary service order to the terminal through the base station; and receiving a signing confirmation message of the supplementary service order forwarded by the base station again from the terminal, taking effect of the supplementary service corresponding to the supplementary service order, and completing signing of the supplementary service. The IMS supplementary service signing method is simple in signing operation and is not limited by network conditions.

Description

Technical Field

[0001] The present invention relates to the field of IMS communication technology, and in particular to an IMS supplementary service subscription method, system, device and medium. Background Art

[0002] The continuity, stability and reliability of services play a vital role in the IP Multimedia Subsystem (IMS) core network system. With the development of society, there is an increasing demand for supplementary services, which are designed to enhance traditional voice communications and provide a richer and more diverse service experience.

[0003] However, traditional supplementary service contract signing methods have different limitations. For example, the dial-up contract signing method requires personnel to input different key commands, and the contract signing method is complicated. The new data download method is limited by the network environment or the simplicity of operation, and cannot meet the needs of various personnel for contract setting operations. Summary of the invention

[0004] The object of the present invention is to provide an IMS supplementary service subscription method, system, device and medium, wherein the subscription operation is simple and is not limited by network conditions.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides an IMS supplementary service subscription method, which is applied to an IMS core network, including:

[0006] Receiving a supplementary service subscription message from a terminal forwarded by a base station; wherein the supplementary service subscription message carries a keyword of a supplementary service that the terminal requests to subscribe to, and the supplementary service is a service that sets a standard service that the terminal has subscribed to;

[0007] Generate a supplementary service order containing a subscription message for the corresponding supplementary service according to the keyword of the supplementary service carried in the supplementary service subscription message, and send the supplementary service order to the terminal through the base station;

[0008] The receiving base station forwards the contract signing confirmation message of the supplementary service order from the terminal again, and takes into effect the supplementary service corresponding to the supplementary service order, thereby completing the contract signing of the supplementary service.

[0009] In some optional embodiments, generating a supplementary service order including a subscription message for a corresponding supplementary service according to a keyword of the supplementary service carried in the supplementary service subscription message includes:

[0010] Identify the keyword of the supplementary service carried in the supplementary service subscription message to determine whether there is a matching preset policy for the keyword of the supplementary service requested by the terminal; wherein the IMS core network pre-stores preset policies for a plurality of different supplementary services, each preset policy being a keyword for a corresponding supplementary service;

[0011] A supplementary service order including a subscription message for the corresponding supplementary service is generated according to a preset policy that matches the keyword of the supplementary service.

[0012] In some optional embodiments, the IMS core network includes multiple data areas for storing service data, each data area corresponding to a terminal;

[0013] The step of generating a supplementary service order including a subscription message according to a keyword of the supplementary service requested by the terminal comprises:

[0014] According to the terminal that initiates the supplementary service subscription message, the data area corresponding to the terminal is searched, and a supplementary service order including the subscription message is generated in the data area corresponding to the terminal.

[0015] In some optional embodiments, there are multiple IMS core networks, each of which includes multiple terminals;

[0016] Before generating the supplementary service order including the subscription message according to the keyword of the supplementary service requested by the terminal, the method further includes:

[0017] The IMS core network receiving the supplementary service subscription message confirms that the terminal initiating the supplementary service subscription message belongs to the IMS core network;

[0018] Confirm that the keyword of the supplementary service that the terminal requests to sign up for carried in the supplementary service signing-up message is legal.

[0019] In some optional embodiments, the terminal initiates a supplementary service subscription message via a text message or a public account.

[0020] In some optional embodiments, the supplementary service subscription message is used to indicate a supplementary service requested by the terminal, or a supplementary service requested to be modified by the terminal, or a supplementary service requested to be cancelled by the terminal.

[0021] In some optional embodiments, the supplementary services include: call forwarding, call restriction and call forwarding on busy.

[0022] The embodiment of the present invention also provides an IMS supplementary service subscription system, including: a terminal, a base station and an IMS core network;

[0023] The terminal is used to send a supplementary service subscription message to the IMS core network; wherein the supplementary service subscription message carries a keyword of the supplementary service that the terminal requests to subscribe to, and the supplementary service is a service that sets the standard service that the terminal has subscribed to;

[0024] The base station is used to forward the supplementary service subscription message from the terminal to the IMS core network;

[0025] The IMS core network is used to generate a supplementary service order including a subscription message of a corresponding supplementary service according to a keyword of the supplementary service carried in the supplementary service subscription message, and send the supplementary service order to the base station;

[0026] The base station is also used to forward the supplementary service order from the IMS core network to the terminal;

[0027] The terminal is further used to send a signing confirmation message of the supplementary service order to the base station;

[0028] The base station is further used to forward the subscription confirmation message of the supplementary service order from the terminal to the IMS core network;

[0029] The IMS core network is also used to validate the supplementary services corresponding to the supplementary service orders and complete the signing of the supplementary services.

[0030] An embodiment of the present invention also provides a computer device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned IMS supplementary service subscription method.

[0031] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program, wherein the computer program implements the above-mentioned IMS supplementary service subscription method when executed by a processor.

[0032] The IMS supplementary service subscription method provided by the present invention has at least the following beneficial effects:

[0033] For the signing of services (i.e., supplementary services) for setting up standard services for which the terminal has signed a contract, the supplementary service signing message is initiated by the terminal sending the keyword of the supplementary service that the terminal requests to sign a contract for, and then the terminal and the IMS core network interact through the base station to realize the signing of the supplementary service. The terminal only needs to send the keyword of the supplementary service requested to sign a contract, and the IMS core network only needs to identify the keyword to determine the supplementary service requested to sign a contract by the terminal. Unlike dial-up signing, the user needs to know the number corresponding to each layer of the service. The user only needs to enter the keyword of the supplementary service. The signing operation is simple and easy to implement, and is not limited by network environment conditions. It is suitable for all kinds of people to sign supplementary services. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] One or more embodiments are exemplarily described by the pictures in the corresponding drawings, and these exemplary descriptions do not constitute limitations on the embodiments.

[0035] Figure 1 is a flow chart of an IMS supplementary service subscription method provided according to an embodiment of the present invention;

[0036] Figure 2 It is a schematic diagram of a process of handling an IMS supplementary service according to an embodiment of the present invention;

[0037] Figure 3 It is a schematic diagram of a process of modifying an IMS supplementary service according to an embodiment of the present invention;

[0038] Figure 4 It is a schematic diagram of a process of terminating an IMS supplementary service according to an embodiment of the present invention;

[0039] Figure 5 The present invention is a flowchart of authority judgment and generation of a supplementary service order in an IMS supplementary service subscription process according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in the embodiments of the present invention, many technical details are proposed in order to enable the reader to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present invention can be implemented. The division of the following embodiments is for the convenience of description and should not constitute any limitation on the specific implementation of the present invention. The various embodiments can be combined and referenced with each other without contradiction.

[0041] An embodiment of the present invention relates to an IMS supplementary service contract method, which is applied to an IMS core network. The implementation details of the IMS supplementary service contract method of this embodiment are specifically described below. The following content is only the implementation details provided for the convenience of understanding and is not necessary for implementing this solution.

[0042] The specific process of the IMS supplementary service subscription method of this embodiment can be as follows: Figure 1 As shown, including:

[0043] Step 101, receiving a supplementary service subscription message forwarded by a base station from a terminal; wherein the supplementary service subscription message carries a keyword of a supplementary service requested to be subscribed by the terminal, and the supplementary service is a service for setting up a standard service subscribed by the terminal.

[0044] Specifically, the user can enter the keywords of the supplementary service they want to sign up for on the SMS interface of the terminal, or follow the official account and enter the keywords of the supplementary service they want to sign up for on the official account interface, so that the terminal initiates the supplementary service signing message through SMS or official account, and then the supplementary service signing message is sent to the IMS core network through the base station.

[0045] Among them, the supplementary service is a service that modifies or supplements the basic telecommunication service. It is attached to the basic call and is a service function specially provided for users to meet special application scenarios, including: call forwarding, call restriction, and busy forwarding, etc. Therefore, the subscription of the supplementary service in this embodiment can be regarded as a supplementary setting for the existing service.

[0046] The supplementary service subscription message is used to indicate the supplementary service that the terminal requests to handle, or to indicate the supplementary service that the terminal requests to modify, or to indicate the supplementary service that the terminal requests to cancel. That is, the supplementary service subscription in this embodiment can be to handle, cancel, or modify a supplementary service.

[0047] Step 102: Generate a supplementary service order including a subscription message for the corresponding supplementary service according to the keyword of the supplementary service carried in the supplementary service subscription message, and send the supplementary service order to the terminal via the base station.

[0048] Specifically, the keyword of the supplementary service carried in the supplementary service subscription message is first identified to determine whether there is a matching preset policy for the keyword of the supplementary service requested by the terminal; wherein the IMS core network pre-stores a plurality of preset policies for different supplementary services, each of which is a keyword for a corresponding supplementary service. Then, according to the preset policy that matches the keyword of the supplementary service, a supplementary service order containing the subscription message for the corresponding supplementary service is generated.

[0049] In one example, the IMS core network includes multiple data areas for storing service data, each data area corresponds to a terminal. When a supplementary service order containing a signing message is generated based on the keywords of the supplementary service requested by the terminal, the data area corresponding to the terminal is searched based on the terminal that initiates the supplementary service signing message, and a supplementary service order containing the signing message is generated in the data area corresponding to the terminal.

[0050] In an example, there are multiple IMS core networks, each of which contains multiple terminals. Before generating a supplementary service order containing a signing message based on the keywords of the supplementary service requested by the terminal, first, the IMS core network that receives the supplementary service signing message confirms that the terminal that initiated the supplementary service signing message belongs to the IMS core network, and confirms that the keywords of the supplementary service requested by the terminal carried in the supplementary service signing message are legal.

[0051] Step 103: receiving the contract signing confirmation message of the supplementary service order from the terminal forwarded again by the base station, and taking into effect the supplementary service corresponding to the supplementary service order, thereby completing the contract signing of the supplementary service.

[0052] In this embodiment, for the signing of a service (i.e., a supplementary service) for setting up a standard service for which the terminal has signed a contract, the supplementary service signing message is initiated by the terminal sending a keyword of the supplementary service that the terminal requests to sign a contract for, and then the terminal and the IMS core network interact through the base station to achieve the signing of the supplementary service. The terminal only needs to send the keyword of the supplementary service requested to sign a contract, and the IMS core network only needs to identify the keyword to determine the supplementary service that the terminal requests to sign a contract. Unlike dial-up signing, the user needs to know the number corresponding to each layer of the service. The user only needs to enter the keyword of the supplementary service. The signing operation is simple and easy to implement, and is not limited by network environment conditions. It is suitable for all kinds of people to sign supplementary services.

[0053] In one embodiment, the IMS supplementary service subscription method of the present invention is implemented by the following contents:

[0054] When initiating supplementary services in accordance with normal usage regulations, the applicant (user) selects the message method according to the actual situation. When the network conditions are poor or there is no network traffic or it is not a smart phone, you can choose the SMS method and sign the supplementary service by editing the SMS. Enter the keywords "call forwarding", "busy forwarding", "power off forwarding" and send them to the operator's service number. The IMS core network identifies the service based on the SMS content, processes the keywords compiled by the applicant, and replies to the SMS to inquire, guiding the applicant to enter subsequent information, such as the contracted transfer number and the subsequent service time period selection, thereby completing the specific supplementary service contract. The applicant can also follow the operator's official account and select the human-machine interface to compile the corresponding message to complete the contract for the supplementary service.

[0055] Among them, the message is sent to the core network via the base station. When the core network receives messages from different channels, it must first authenticate the identity of the applicant, then identify the keywords in the message content, and thus determine the applicant's contract requirements, generate an order, and interact with the applicant through messages, and finally complete the contract settings. Finally, the contract content is saved to the configuration system. Subsequently, the corresponding supplementary services will be initiated according to the contract content. And when the supplementary service takes effect, the applicant will be notified by message.

[0056] Similarly, the applicant can edit the message through the same message method (SMS or public account human-machine interface) to modify or cancel the supplementary service. After the core network recognizes the keywords of the specific message content, it will trigger the corresponding service processing.

[0057] This method of signing up for supplementary services avoids the cumbersome dialing method, the cumbersome built-in operation of the mobile phone, or the need for smart phone settings. This method is more user-friendly and only requires editing the message. The IMS core network side only needs to add keyword recognition to the message content, without complex interaction processes, thus ensuring the safety of personnel and property.

[0058] The following is a detailed description of various situations in the IMS supplementary service contract signing method:

[0059] Figure 2 The following is a flow chart of an IMS supplementary service handling process, including:

[0060] Step 1: The applicant selects SMS or public account human-machine interface according to the actual usage conditions and edits the message. The applicant initiates a supplementary service contract application to the core network and needs to carry the keywords of the supplementary service he wants to handle, such as "call forwarding", "call restriction", "busy forwarding" and other specific service keywords.

[0061] Step 2: After receiving the request, the core network first determines whether the applicant has the authority to set up supplementary services. If not, the application is directly rejected and the process ends here. If the applicant has the authority, the authority is determined based on the content of the invitation. The specific steps are as follows:

[0062] ① Whether the user who initiates the supplementary service contract setting belongs to this core network;

[0063] ② Whether the message content can identify the supplementary service keywords that need to be processed, and whether the keyword strategy is consistent with the preset strategy in this system;

[0064] ③, when the keyword cannot be recognized or the system does not support the service, the request is directly rejected and the process ends here;

[0065] ④. When all the data carried is matched, a successful response is sent to accept the request.

[0066] Step 3: The core network determines the authority of the applicant and performs preliminary keyword recognition on the message and message content, and then sends a message response to the applicant;

[0067] Step 4, the base station requests a response from the user;

[0068] Step 5: The core network generates a preliminary order based on the request, which includes the signed supplementary service order;

[0069] Step 6: The core network sends a service notification to the applicant;

[0070] Step 7: After receiving the supplementary service notification message, the user reads it carefully and gives feedback on the customized service plan. If no feedback is given for a long time, it is deemed that the service is not approved and the service process ends here. Alternatively, the user directly replies to reject the service and the process ends here. After the user accepts and approves the plan, he can reply a confirmation message to the base station.

[0071] Step 8: The base station forwards the service confirmation message, and the core network receives the message, generates the final service and related information and stores them in the core network, and officially starts the supplementary service.

[0072] Step 9: The core network sends a service operation result feedback request to the applicant;

[0073] Step 10: The applicant responds to the request;

[0074] Step 11: When the supplementary service is effective, the applicant is notified via SMS of the current service effectiveness;

[0075] Step 12, message response.

[0076] Figure 3 A process of modifying an IMS supplementary service is shown, including:

[0077] Step 1: The applicant selects SMS or public account human-machine interface according to the actual usage conditions to edit the message. The applicant initiates a supplementary service modification request to the core network, and the core network will make an authority judgment after receiving the request;

[0078] Step 2: The core network responds to the request;

[0079] Step 3: The core network generates a new service order according to the modified content and sends a service modification notification of the user to the base station;

[0080] Step 4, the base station forwards the service modification notification;

[0081] Step 5: The user side chooses to accept or reject the modified service. If rejected, the old solution is retained. If accepted, the new modification result will take effect and a message will be sent to the base station.

[0082] Step 6: The base station forwards the signaling to the core network;

[0083] Step 7: After receiving the confirmation result, the core network updates the data and sends a request message to the applicant by generating feedback on the service operation result;

[0084] Step 8: The applicant responds to the request.

[0085] Figure 4 A process of terminating an IMS supplementary service is shown, including:

[0086] Step 1: The applicant selects SMS or public account human-machine interface according to the actual usage conditions and edits the message. The applicant initiates a request to terminate the supplementary service to the core network, and the core network will make an authority judgment after receiving the request;

[0087] Step 2: The core network responds to the request;

[0088] Step 3: The core network generates a new service order according to the modified content and sends a service termination notification of the user to the base station;

[0089] Step 4, the base station forwards the service termination notification;

[0090] Step 5: The user side responds to the notification message;

[0091] Step 6: The base station forwards the signaling to the core network;

[0092] Step 7: After deleting the relevant data of the user's supplementary service, the core network generates a request message by feeding back the operation result and sends it to the applicant;

[0093] Step 8: The applicant responds to the request.

[0094] In addition, this embodiment also provides a process for determining authority and generating a supplementary service order during an IMS supplementary service subscription process, such as Figure 5 The specific steps are as follows:

[0095] ① After receiving the supplementary service contract signing message, the core network first analyzes the content of the message and determines whether the content is legal;

[0096] ②, according to the forwarded user information carried in the request message, search in the data area of ​​this system. If it is a legal object, associate the member information with the current data area for subsequent business processing;

[0097] ③, process the information sent by the applicant, archive it, and record the respective information;

[0098] ④, Once identity verification is passed, the system will generate a detailed business order and prepare to send it to the applicant. Subsequent supplementary recording and message confirmation will be carried out.

[0099] In this embodiment, when the system has a high real-time and high-security business scenario, the applicant initiates the signing of this supplementary service through operation. The entire process is processed by the core network, which can achieve rapid access, long-term business continuity, and real-time feedback of results to the applicant. It is a complete business process.

[0100] It should be noted that the IMS supplementary service signing method described in any of the above embodiments can be applied to mobile networks such as education, emergency rescue, and social security, allowing users to enjoy convenient and fast mobile networks; only data configuration needs to be performed on the applicant, and the core network can process the request message according to specific strategies after receiving it, which greatly simplifies the operation and maintenance costs of network maintenance; based on the existing IMS core network communication architecture, no new equipment is required.

[0101] The step division of the various methods above is only for clear description. When implemented, they can be combined into one step or some steps can be split and decomposed into multiple steps. As long as they include the same logical relationship, they are all within the protection scope of the present invention. Adding insignificant modifications or introducing insignificant designs to the algorithm or process without changing the core design of the algorithm and process are all within the protection scope of the invention.

[0102] Another embodiment of the present invention relates to an IMS supplementary service subscription system. The implementation details of the IMS supplementary service subscription system of this embodiment are specifically described below. The following content is only for the convenience of understanding the implementation details provided, and is not necessary for implementing this solution. The IMS supplementary service subscription system of this embodiment includes: a terminal, a base station, and an IMS core network;

[0103] The terminal is used to send a supplementary service subscription message to the IMS core network; wherein the supplementary service subscription message carries a keyword of the supplementary service that the terminal requests to subscribe to, and the supplementary service is a service that sets the standard service that the terminal has subscribed to;

[0104] The base station is used to forward the supplementary service subscription message from the terminal to the IMS core network;

[0105] The IMS core network is used to generate a supplementary service order including a subscription message of a corresponding supplementary service according to a keyword of the supplementary service carried in the supplementary service subscription message, and send the supplementary service order to the base station;

[0106] The base station is also used to forward the supplementary service order from the IMS core network to the terminal;

[0107] The terminal is further used to send a signing confirmation message of the supplementary service order to the base station;

[0108] The base station is further used to forward the subscription confirmation message of the supplementary service order from the terminal to the IMS core network;

[0109] The IMS core network is also used to validate the supplementary services corresponding to the supplementary service orders and complete the signing of the supplementary services.

[0110] It is not difficult to find that this embodiment is a system embodiment corresponding to the above method embodiment, and this embodiment can be implemented in conjunction with the above method embodiment. The relevant technical details and technical effects mentioned in the above embodiment are still valid in this embodiment, and in order to reduce repetition, they are not repeated here. Accordingly, the relevant technical details mentioned in this embodiment can also be applied in the above embodiment.

[0111] It is worth mentioning that all modules involved in this embodiment are logic modules. In practical applications, a logic unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, this embodiment does not introduce units that are not closely related to solving the technical problem proposed by the present invention, but this does not mean that there are no other units in this embodiment.

[0112] Another embodiment of the present invention relates to a computer device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the IMS supplementary service subscription method in the above-mentioned embodiments.

[0113] Among them, the memory and the processor are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors and memories together. The bus can also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The data processed by the processor is transmitted on a wireless medium via an antenna, and further, the antenna also receives data and transmits the data to the processor.

[0114] The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory can be used to store data used by the processor when performing operations.

[0115] Another embodiment of the present invention relates to a computer-readable storage medium storing a computer program, which implements the above method embodiment when executed by a processor.

[0116] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including a number of instructions for a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as: ROM), random access memory (Random Access Memory, referred to as: RAM), disk or optical disk and other media that can store program codes.

[0117] Those skilled in the art will appreciate that the above embodiments are specific embodiments for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A method for signing up for an IMS supplementary service, characterized in that: Applied to IMS core network, including: Receiving a supplementary service subscription message from a terminal forwarded by a base station; wherein the supplementary service subscription message carries a keyword of a supplementary service that the terminal requests to subscribe to, and the supplementary service is a service that sets a standard service that the terminal has subscribed to; Generate a supplementary service order containing a subscription message for the corresponding supplementary service according to the keyword of the supplementary service carried in the supplementary service subscription message, and send the supplementary service order to the terminal through the base station; The receiving base station forwards the contract signing confirmation message of the supplementary service order from the terminal again, and takes into effect the supplementary service corresponding to the supplementary service order, thereby completing the contract signing of the supplementary service.

2. The IMS supplementary service subscription method according to claim 1, characterized in that: The generating, according to the keyword of the supplementary service carried in the supplementary service subscription message, a supplementary service order including the subscription message of the corresponding supplementary service comprises: Identify the keyword of the supplementary service carried in the supplementary service subscription message to determine whether there is a matching preset policy for the keyword of the supplementary service requested by the terminal; wherein the IMS core network pre-stores preset policies for a plurality of different supplementary services, each preset policy being a keyword for a corresponding supplementary service; A supplementary service order including a subscription message for the corresponding supplementary service is generated according to a preset policy that matches the keyword of the supplementary service.

3. The IMS supplementary service subscription method according to claim 2, characterized in that: The IMS core network includes multiple data areas for storing service data, each data area corresponding to a terminal; The step of generating a supplementary service order including a subscription message according to a keyword of the supplementary service requested by the terminal comprises: According to the terminal that initiates the supplementary service subscription message, the data area corresponding to the terminal is searched, and a supplementary service order including the subscription message is generated in the data area corresponding to the terminal.

4. The IMS supplementary service subscription method according to claim 3, characterized in that: There are multiple IMS core networks, each of which includes multiple terminals; Before generating the supplementary service order including the subscription message according to the keyword of the supplementary service requested by the terminal, the method further includes: The IMS core network receiving the supplementary service subscription message confirms that the terminal initiating the supplementary service subscription message belongs to the IMS core network; Confirm that the keyword of the supplementary service that the terminal requests to sign up for carried in the supplementary service signing-up message is legal.

5. The IMS supplementary service subscription method according to claim 1, characterized in that: The terminal initiates a supplementary service signing message via a text message or a public account.

6. The IMS supplementary service subscription method according to any one of claims 1 to 5, characterized in that: The supplementary service subscription message is used to indicate the supplementary service that the terminal requests to process, or indicates the supplementary service that the terminal requests to modify, or indicates the supplementary service that the terminal requests to cancel.

7. The IMS supplementary service subscription method according to any one of claims 1 to 5, characterized in that: The supplementary services include: call forwarding, call restriction and call forwarding on busy.

8. An IMS supplementary service subscription system, characterized in that: include: Terminals, base stations and IMS core network; The terminal is used to send a supplementary service subscription message to the IMS core network; wherein the supplementary service subscription message carries a keyword of the supplementary service that the terminal requests to subscribe to, and the supplementary service is a service that sets the standard service that the terminal has subscribed to; The base station is used to forward the supplementary service subscription message from the terminal to the IMS core network; The IMS core network is used to generate a supplementary service order including a subscription message of a corresponding supplementary service according to a keyword of the supplementary service carried in the supplementary service subscription message, and send the supplementary service order to the base station; The base station is also used to forward the supplementary service order from the IMS core network to the terminal; The terminal is further used to send a signing confirmation message of the supplementary service order to the base station; The base station is further used to forward the subscription confirmation message of the supplementary service order from the terminal to the IMS core network; The IMS core network is also used to validate the supplementary services corresponding to the supplementary service orders and complete the signing of the supplementary services.

9. A computer device, characterized in that: include: at least one processor; And, a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the IMS supplementary service subscription method as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the IMS supplementary service subscription method according to any one of claims 1 to 7 is implemented.

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