WO2021037270A1

WO2021037270A1 - Method, apparatus and system for providing service for terminal by using blockchain

Info

Publication number: WO2021037270A1
Application number: PCT/CN2020/112650
Authority: WO
Inventors: 张艳平; 胡伟华; 洪佳楠
Original assignee: 华为技术有限公司
Priority date: 2019-08-30
Filing date: 2020-08-31
Publication date: 2021-03-04
Also published as: CN112449350B; CN112449350A

Abstract

The embodiments of the present application relate to the technical field of communications, and provided are a method, apparatus and system for providing a service for a terminal by using a blockchain. The method may provide the service for the terminal without needing to change the identification of the terminal after the terminal changes operators. The solution comprises: a blockchain account management function (BCAMF) network element of a first operator receives an account opening request message from a terminal, wherein the account opening request message comprises the identification of the terminal, and the account opening request message is used to request to open an account for the terminal in the first operator; the BCAMF network element verifies that the terminal meets account opening requirements according to the identification of the terminal; and the BCAMF network element sends a first message to a user data management network element of the first operator, the first message comprising subscription data of the terminal.

Description

Method, device and system for providing service for terminal by using block chain

This application requires the priority of a Chinese patent application submitted to the State Intellectual Property Office on August 30, 2019, with the application number 2019108191103, and the application title "A method, device and system for providing services for terminals using blockchain". The entire content is incorporated into this application by reference.

Technical field

The embodiments of the present application relate to the field of communication technology, and in particular, to a method, device, and system for providing services for a terminal using a blockchain.

Background technique

The terminal needs to use the subscriber identification module (SIM) card to access the operator’s communication network. The SIM card information includes the international mobile subscriber identification (IMSI) and the mobile station’s international integrated service digital network number (mobile). subscriber international integrated service digital network (MSISDN) information. IMSI and MSISDN uniquely identify the identity of the terminal in the communication network, and the identity is bound to the operator. Current SIM card management method: traditional pluggable SIM.

Traditional pluggable SIM: The SIM card is a physical card. After the user of the terminal signs a service contract with the operator, the operator provides it to the user. The user inserts the SIM card into the mobile terminal, and the terminal uses the SIM card to contact the operator’s network to obtain service.

For pluggable SIM cards, operators need to perform additional SIM card management, such as purchase and distribution. When changing the operator, the user also needs to apply for a new physical card from the operator, which is very inconvenient. Moreover, it is not realistic to distribute SIM cards to a huge number of Internet of Things (IoT) terminals, especially for IOT terminals that are deployed in locations that are not easily accessible to humans, and replacement of the SIM card cannot be implemented.

In addition, the prefixes of IMSI and MSISDN are bound to the operator. After the terminal changes the operator, the IMSI and MSISDN of the terminal will also be changed accordingly. In this way, the terminal needs to notify all contacts and change the saved identifier for MT business. At the same time, after the terminal identification is changed, if the terminal data is to be integrated, multiple identifications need to be mapped to each other to be associated with the same terminal, which is not conducive to terminal-centric data integration and sharing in the era of big data.

Summary of the invention

The embodiments of the present application provide a method, a device, and a system for providing services for a terminal by using a blockchain. The method can provide services for the terminal without changing the identity of the terminal after the terminal changes to an operator.

In order to achieve the foregoing objectives, the embodiments of the present application provide the following technical solutions:

In the first aspect, an embodiment of the present application provides a method for using a blockchain to provide services for a terminal, including: the first operator’s blockchain account management function BCAMF network element receives an account opening request message from the terminal, and the account opening request message includes The identification of the terminal, the account opening request message is used to request to open an account for the terminal in the first operator. The BCAMF network element verifies that the terminal meets the account opening requirements based on the terminal's identification. The BCAMF network element sends a first message to the user data management network element of the first operator, where the first message includes the subscription data of the terminal.

The embodiment of the application provides a method for providing services for a terminal by using a blockchain. In this method, after the BCAMF network element of the first operator receives an account opening request message from the terminal and verifies that the terminal meets the account opening requirements according to the terminal's identity, Send the subscription data of the terminal to the user data management network element. In this solution, the terminal does not need to sign a contract with the first operator in advance, but when needed, select the appropriate first operator, open an account with the first operator at any time, or purchase the services of the first operator, which is convenient for realizing online It is more convenient to realize the automatic opening of an account for the terminal in the first operator than in the prior art when the user of the terminal needs to open an account in the business hall where the offline operator is located. In addition, since the identity of the terminal is always the identity of the terminal, it is inconvenient for the terminal to maintain the identity of the terminal after changing the operator, and does not affect the called (mobile terminated, MT) service. Moreover, this method satisfies the requirement of opening an account for the terminal before using the blockchain to provide services for the terminal.

In a possible implementation manner, the BCAMF network element verifies that the terminal meets the account opening requirement based on the terminal's identity, including: the BCAMF network element verifies in the blockchain that the terminal meets the account opening requirement based on the terminal's identity.

In a possible implementation, the terminal identifier is used to identify the terminal in the blockchain.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the BCAMF network element publishes first transaction information in the blockchain, the first transaction information includes one of the terminal's identity and the first operator's information The first corresponding relationship between the two, the first corresponding relationship is used to indicate that the terminal successfully opens an account in the first operator. This is convenient for other alliance members participating in the blockchain to determine that the terminal opens an account with the first operator.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the BCAMF network element determines that the first operator currently provides services for the terminal. The BCAMF network element publishes the second transaction information in the blockchain, where the second transaction information is used to indicate that the first operator currently provides services for the terminal. In this way, it is convenient for the service initiator to determine the first operator that provides services for the terminal in the blockchain according to the identification of the terminal, and then determine one or more network elements that provide services for the terminal.

In a possible implementation manner, the BCAMF network element publishes the second transaction information in the blockchain, including: the BCAMF network element converts the first operator between the identification of the terminal recorded in the blockchain and the identification of the first operator. The corresponding relationship is set to the active state. When the first correspondence is set to the activated state, it means that the first operator currently provides services for the terminal. Since the terminal can be subscribed to multiple operators, and one operator may provide services for the terminal at a certain moment, therefore, if the BCAMF network element determines that the current first operator provides services for the terminal, the first corresponding relationship is set to the active state , It is convenient for the service initiator network element to determine from the blockchain through the terminal's identifier that the first operator currently provides services for the terminal when interacting with the terminal.

In all the embodiments of this application, the activation state is only an identification method, and its purpose is to illustrate that a specific operator provides services for the terminal. The identification method can also be other methods, such as setting a flag and using 1 to identify the operator as the terminal To provide services, the embodiments of this application will not go into details one by one.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the BCAMF network element receives the first instruction from the terminal. The BCAMF network element determining that the first operator currently provides services for the terminal includes: the BCAMF network element determines that the first operator currently provides services for the terminal according to the first instruction. In this way, it is convenient for the terminal to instruct the first operator to provide services for the terminal. When the first instruction is carried in the account opening request message, the BCAMF network element can determine the network to which the terminal is attached before the terminal attaches to the network. For example, after the security department obtains the network activated by the user, it can directly manage the user plane data of the network. The network element subscribes to the attachment status of the terminal. After the terminal is attached, the user plane data management network element notifies the security department.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the BCAMF network element determines that the current first operator does not provide services for the terminal; and the BCAMF network element publishes the third transaction information in the blockchain. Among them, the third transaction information is used to indicate that the current first operator does not provide services for the terminal.

In a possible implementation, the BCAMF network element publishing the third transaction information in the blockchain includes: the BCAMF network element calculates the difference between the terminal identification recorded in the blockchain and the first operator's identification. One correspondence is set to an inactive state. Setting the first correspondence relationship to an inactive state indicates that the first operator does not provide services for the terminal. Since the terminal can subscribe to multiple operators, and one operator may provide services for the terminal at a certain moment, if the BCAMF network element determines that the current first operator does not provide services for the terminal, the first corresponding relationship is set to non- The activated state is convenient for the service initiator network element to determine from the blockchain that the current first operator does not provide services for the terminal through the inactive state of the first corresponding relationship when interacting with the terminal.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the BCAMF network element publishes fourth transaction information in the blockchain, and the fourth transaction information includes verification information. The verification information is used to indicate that the terminal meets the account opening requirements.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the BCAMF network element sends an account opening acceptance message to the terminal, and the account opening acceptance message includes at least the user permanent identity SUPI allocated by the BCAMF network element to the terminal. In this way, it is convenient for the terminal to register to the network of the first operator through SUPI after opening an account.

In a possible implementation, the account opening acceptance message also includes one or more of the following allocated by the BCAMF network element to the terminal: GPSI, secret key, and serial number. SUPI is a permanent identity for subscribers, which is assigned by the first operator. It can be an IMSI and is used for interaction between the terminal and the mobile network as the unique identity of the terminal. GPSI is a universal public user identification, which is assigned by the first operator, and can be an MSISDN, which is used for the terminal's public identity, such as the terminal's phone number. Secret key: The secret key of the terminal, which is used to encrypt and decrypt messages that interact with the mobile network. Serial number: A type of security parameter stored locally on the terminal, used to synchronize the security vector between the terminal and the mobile network.

In a possible implementation, the account opening request message also includes any one or more of the following information requested by the terminal: an access point name APN list and a network slice list, the APN list includes one or more of the first operator APN, the network slice list includes one or more network slices of the first operator.

In a possible implementation manner, the subscription data includes: the identification of the terminal, and one or more of the following allocated by the BCAMF network element to the terminal: SUPI, a general public subscription identification GPSI, and a list of services allowed by the terminal. The list of services allowed by the terminal includes one or more of the following: a list of APNs allowed by the terminal; a list of slices allowed by the terminal, and a list of services allowed by the terminal.

In a possible implementation manner, the subscription data further includes: a secret key, a serial number, one or more APNs, or, one or more network slices.

In a possible implementation, the method provided in the embodiment of the present application further includes: the BCAMF network element publishes seventh transaction information in the blockchain, and the seventh transaction information includes any one or more of the following information: SUPI and The mapping relationship between the identities of the terminal, the mapping relationship between the GPSI and the identities of the terminal. By publishing the mapping relationship between the SUPI and the terminal's identity in the blockchain, it is convenient for other operators to perform the called (Mobile terminated, MT) routing addressing.

In a possible implementation, the BCAMF network element publishes transaction information in the blockchain, including: the BCAMF network element sends the transaction information to the blockchain processing function BCHF network element, and the BCHF network element is used to publish in the blockchain Transaction information, the transaction information includes: any one or more of the first transaction information, the second transaction information, the third transaction information, the fourth transaction information, and the seventh transaction information. In this way, when the BCAMF network element does not have the function of processing the blockchain, the BCHF network element can issue transaction information as an agent. Or when the BCAMF network element has the function of processing the blockchain, the BCHF network element agent can release the transaction information to reduce the processing burden of the BCAMF network element.

In a possible implementation, the BCAMF network element verifies that the terminal meets the account opening requirements based on the terminal's identity, including: the BCAMF network element verifies in the blockchain according to the terminal's identity that the terminal meets some or all of the requirements in the account opening requirements, Such as age, no criminal record and so on.

In the second aspect, an embodiment of the present application provides a method for providing services for a terminal using a blockchain. The method includes: a BCAMF network element receives an account cancellation request message from the terminal, and the account cancellation request message carries the identification of the terminal, and the account cancellation The request message is used to request cancellation of the terminal's service in the first operator. The BCAMF network element sends a second message to the user data management network element, where the second message includes the identification of the terminal, and the second message is used to instruct to delete the subscription data of the terminal.

The embodiment of the present application provides a method for using the blockchain to provide services for the terminal, so that it is convenient for the BCAMF network element to cancel the account of the terminal in the blockchain according to the account cancellation request message of the terminal. Since the terminal's identity can identify the terminal in the blockchain, and there is no need to change the terminal's identity even after the terminal changes its operator, this method meets the requirement of canceling the account for the terminal after using the blockchain to provide services to the terminal .

In a possible implementation manner, before the BCAMF network element sends the second message to the user data management network element, the method further includes: the BCAMF network element determines that the terminal meets the requirement of canceling the user in the blockchain according to the identifier of the terminal. Misoperation was avoided by verification.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the BCAMF network element releases the SUPI and/or GPSI allocated to the terminal.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the BCAMF network element sends an account cancellation success message to the terminal. In this way, it is convenient for the terminal to determine that the account has been successfully cancelled at the first operator.

In a possible implementation, the method provided in this embodiment of the application further includes: the BCAMF network element publishes fifth transaction information in the blockchain. The fifth transaction information includes an account cancellation transaction, and the account cancellation transaction is used to indicate that the terminal has completed the transaction. Cancel the terminal's service in the first operator. It is convenient for other members in the blockchain to confirm that the terminal has cancelled the service of the terminal in the first operator by publishing the account cancellation transaction.

In a possible implementation, the BCAMF network element publishes the fifth transaction information in the blockchain, including: the BCAMF network element sends the fifth transaction information to the blockchain processing function BCHF network element, and the BCHF network element is used in the district The fifth issue of transaction information in the blockchain.

For the content of the subscription data of the terminal in the second aspect, reference may be made to the description in the first aspect, which will not be repeated here.

In the third aspect, an embodiment of the present application provides a method for providing services for a terminal using a blockchain. The method includes: a BCAMF network element receives an update service request message from the terminal, the update service request message carries the identification of the terminal, and the update The service request message is used to request to update the service of the terminal in the first operator; the BCAMF network element sends a third message to the user data management network element. The third message includes the identification of the terminal and the updated subscription data.

The embodiment of the present application provides a method for providing a service for a terminal by using a blockchain, so that it is convenient for the BCAMF network element to realize the service of updating the terminal according to the update service request message of the terminal. Since the terminal's identity can identify the terminal in the blockchain, and there is no need to change the terminal's identity even after the terminal changes its operator, this method meets the requirement of updating services for the terminal before using the blockchain to provide services to the terminal .

In a possible embodiment, before the BCAMF network element sends the third message to the user data management network element, the method provided in the embodiment of the present application may further include: the BCAMF network element determines the terminal in the blockchain according to the terminal identifier Meet the update service requirements.

In a possible embodiment, the method provided in the embodiment of the present application may further include: the BCAMF network element sends an update success message to the terminal. The update success message is used to indicate that the service of the terminal has been successfully updated.

In a possible embodiment, the method provided in the embodiment of the present application may further include: the BCAMF network element publishes the update service transaction in the blockchain. The updated service transaction includes the updated service of the terminal in the first operator.

In a possible embodiment, the method provided in the embodiment of the present application may further include: the BCAMF network element updates the APN list or the network slice list of the terminal.

In a possible embodiment, the update service request message carries the APN or network slice that the terminal requests to delete or add.

In a possible embodiment, the method provided in the embodiment of the present application further includes: the BCAMF network element publishes sixth transaction information in the blockchain, and the sixth transaction information includes the updated service of the terminal in the first operator.

In a possible implementation, the BCAMF network element publishes the sixth transaction information in the blockchain, including: the BCAMF network element sends the sixth transaction information to the blockchain processing function BCHF network element, and the BCHF network element is used in the district The sixth issue of transaction information in the block chain.

For the content of the subscription data of the terminal in the third aspect, reference may be made to the description in the first aspect, which will not be repeated here.

In a fourth aspect, an embodiment of the present application provides a method for using a blockchain to provide services to a terminal, including: a first network element sends a first message to a user plane data management network element, the first message is used to indicate that the first network The element is registered as a network element that provides services to the terminal. The first message includes the identification or SUPI of the terminal; the first network element and the user plane data management network element belong to the first operator; the first network element receives data from the user plane data management network element The response message indicating successful registration; the first network element publishes the first transaction information of the information of the first network element that provides services for the terminal in the blockchain.

The embodiment of the application provides a method for providing services for a terminal by using a blockchain. A first message is sent to a user plane data management network element through a first network element to register the first network element at the user plane data management network element. A network element that provides services to the terminal. In this way, if the first network element receives a response message from the user plane data management network element indicating that the registration is successful, it will publish the information of the first network element that provides services to the terminal in the blockchain The first transaction information. Since the terminal's identity can identify the terminal in the blockchain, and even after the terminal changes its operator, there is no need to change the terminal's identity. In this way, if the terminal changes its operator, the service initiator network element can be obtained from the blockchain as The information of the first network element that the terminal provides services, and then provides services for the terminal by interacting with the network element that provides services for the terminal. This method meets the requirement of using the blockchain to determine one or more network elements that provide services for the terminal before the service initiator network element provides services for the terminal when the terminal changes its operator.

In a possible embodiment, the method provided in the embodiment of the present application may further include: the first network element sends a second message to the user plane data management network element, and the second message is used to indicate that the first network element is cancelled as a terminal The network element that provides the service; the first network element receives a response message from the user plane data management network element indicating that the cancellation is successful. The first network element publishes the second transaction information in the blockchain, and the second transaction information includes the information marked as invalid for the first network element that provides the service for the terminal. In this way, when the terminal is separated from the network of the first operator, it is convenient for the network element calling the terminal to determine that the first network element is unavailable.

In a possible embodiment, the first network element publishing the first transaction information in the blockchain includes: the first network element sends the first transaction information to the BCHF network element, and the BCHF network element is used to transfer the first transaction information Publish on the blockchain.

In a possible embodiment, the first network element publishing the second transaction information in the blockchain includes: the first network element sends the second transaction information to the BCHF network element, and the BCHF network element is used to transfer the second transaction information Publish on the blockchain.

In a possible embodiment, the first network element is any one or more of a mobility management network element, a session management network element, or a serving call session control function S-CSCF network element.

In a fifth aspect, an embodiment of the present application provides a method for using a blockchain to provide services for a terminal, including: a user data management network element receives a first message from a first network element, and the first message is used to indicate that the first network The element is registered as a network element that provides services to the terminal, and the first message includes the identification or SUPI of the terminal. The first network element and the user plane data management network element belong to the first operator. The user data management network element publishes the first transaction information in the blockchain, where the first transaction information is used to indicate that the first operator currently provides services for the terminal.

The embodiment of the application provides a method for providing services for a terminal by using a blockchain. A first message is sent to a user plane data management network element through a first network element to register the first network element at the user plane data management network element. In order to provide services to the terminal, the user plane data management network element can determine that the terminal is registered with the first operator, that is, the terminal selects the first operator to provide services for the terminal, and then the user plane data management network element is in the area The first transaction information used to represent the current service provided by the first operator for the terminal is published in the block chain. Since the terminal's identity can identify the terminal in the blockchain, and even if the terminal changes its operator, there is no need to change the terminal's identity. In this way, even if the terminal changes its operator, the service initiator network element can be enabled according to the terminal's identity or SUPI slave In the blockchain, the operator currently providing services to the terminal is determined as the first operator. Then, the network element that provides services for the terminal in the first operator interacts with the terminal to provide services for the terminal. In this method, after the user plane data management network element determines that the terminal is registered on the first operator's network, the information of the first operator is written into the blockchain. Although this solution cannot obtain the network that provides services for the terminal in advance, it can avoid invalid subscription data activation status. For example, the terminal activates the subscription data of a certain operator, but ultimately fails to register with the operator, which will result in data errors.

In a possible embodiment, the user data management network element publishing the first transaction information in the blockchain includes: the user data management network element sends the first transaction information to the BCHF network element, and the BCHF network element is used to transfer the first transaction information to the BCHF network element. The transaction information is published in the blockchain.

In a possible embodiment, the method provided by the embodiment of the present application may further include: the user data management network element receives a second message from the first network element, and the second message is used to indicate that the first network element is cancelled as a terminal The network element that provides the service. The user data management network element publishes the second transaction information in the blockchain. The second transaction information includes any one or more of the following: the information of the first network element marked as invalid for the terminal to provide services, or the current transaction information A record of the service provided by the operator for the terminal is set to an inactive state.

In a possible embodiment, the user data management network element publishing the second transaction information in the blockchain includes: the user data management network element sends the second transaction information to the BCHF network element, and the BCHF network element is used to transfer the second transaction information to the BCHF network element. The transaction information is published in the blockchain.

In a sixth aspect, an embodiment of the present application provides a method for using a blockchain to provide a service for a terminal, which includes: a BCHF network element receives a first request message from a service initiating network element, the first request message includes the terminal’s identity or SUPI, The first request message is used to request first information, and the first information is used to determine one or more network elements that provide services for the terminal; the BCHF network element obtains the first information from the blockchain according to the identification of the terminal ; The BCHF network element sends the first information to the service initiating network element.

The embodiment of the present application provides a method for using a blockchain to provide a service for a terminal. The method uses a BCHF network element to initiate a first request message of the network element based on the service to obtain first information from the blockchain. The BCHF network element sends the first information to the service initiating network element. Since the terminal's identity can identify the terminal in the blockchain, and even if the terminal changes its operator, there is no need to change the terminal's identity. In this way, even if the terminal changes its operator, the service initiator network element can be enabled according to the terminal's identity or SUPI slave One or more network elements that currently provide services to the terminal are determined in the blockchain. Furthermore, the service initiator network element provides services for the terminal by interacting with the network element that provides services for the terminal. This method meets the requirement of determining one or more network elements that provide services for the terminal before the service initiator network element provides services for the terminal when the terminal changes its operator.

In a possible embodiment, the first request message carries a first indication, and the first indication is used by the BCHF network element to determine information about one or more network elements that are requested by the service initiating network element to provide services for the terminal.

In a possible embodiment, the first information is: information of one or more network elements that provide services for the terminal. In this way, it is convenient for the service initiating network element to determine one or more network elements currently providing services for the terminal according to the information of one or more network elements.

In a possible embodiment, the first indication is used to indicate any one or more of the following information: the type of service that the service initiating network element needs to communicate with the terminal, or the type of network element expected by the service initiating network element, or the service The name of the network element required by the initiating network element.

In a possible embodiment, the first request message carries a second indication for requesting information of an operator that provides services for the terminal.

In a possible embodiment, the first information is: information of an operator currently providing services for the terminal. In this way, it is convenient for the service initiating network element to determine one or more network elements currently providing services for the terminal based on the information of the operator that provides services for the terminal.

In a seventh aspect, an embodiment of the present application provides a method for using a blockchain to provide a service for a terminal, which includes: a service initiating network element obtains first information from the blockchain according to an identifier of the terminal. The first information is used to determine one or more network elements that provide services for the terminal. The service initiating network element determines one or more network elements that provide services for the terminal according to the first information; the service initiating network element interacts with any one of the one or more network elements, as The terminal provides services.

The embodiment of the present application provides a method for using a blockchain to provide services for a terminal. The method obtains a first network element from the blockchain for determining one or more network elements that provide services for the terminal through a service initiating network element. information. Since the terminal's identity can identify the terminal in the blockchain, and even if the terminal changes its operator, there is no need to change the terminal's identity. In this way, even if the terminal changes its operator, the service initiator network element can be enabled according to the terminal's identity or SUPI slave One or more network elements that currently provide services to the terminal are determined in the blockchain. Furthermore, the service initiator network element provides services for the terminal by interacting with the network element that provides services for the terminal. This method meets the requirement of determining one or more network elements that provide services for the terminal before the service initiator network element provides services for the terminal when the terminal changes its operator.

In a possible embodiment, the service initiating network element obtains the first information from the blockchain according to the identifier of the terminal, including: sending a first request message to the blockchain processing function BCHF network element, the first request The message includes the identification of the terminal, the first request message is used to request first information, and the first information is used to determine one or more network elements that provide services for the terminal; The first information of the BCHF.

In a possible embodiment, the first information includes information of an operator that currently provides services for the terminal, and the service initiating network element determines one or more network elements that provide services for the terminal according to the first information. The service initiating network element determines the information of one or more network elements according to the information of the operator.

In a possible embodiment, the first information includes information about one or more network elements that provide services for the terminal.

In a possible embodiment, the first request message carries the second indication. The second indication is used to request information about an operator that provides services for the terminal.

In an eighth aspect, the present application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using a blockchain can implement the method in the first aspect or any possible implementation of the first aspect, Therefore, the beneficial effects of the first aspect or any possible implementation manner of the first aspect can also be achieved. The device that uses the blockchain to provide services for the terminal may be a BCAMF network element, or a device that can support the BCAMF network element to implement the first aspect or any possible implementation method of the first aspect, for example, it is applied to a BCAMF network. Yuan in the chip. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides an apparatus for providing services for a terminal by using a blockchain, including: a communication unit for receiving an account opening request message from the terminal, the account opening request message includes the identification of the terminal, and the account opening request message is used for It is requested to open an account in the first operator for the terminal. The processing unit is used to verify that the terminal meets the account opening requirements according to the terminal's identification. The communication unit is configured to send a first message to a user data management network element of the first operator, where the first message includes subscription data of the terminal.

In a possible implementation manner, the processing unit is configured to verify in the blockchain that the terminal meets the account opening requirements according to the terminal's identity.

In a possible implementation, the processing unit is further configured to publish first transaction information in the blockchain, where the first transaction information includes the first correspondence between the terminal's identity and the information of the first operator, The first correspondence is used to indicate that the terminal successfully opens an account in the first operator. This is convenient for other alliance members participating in the blockchain to determine that the terminal opens an account with the first operator.

In a possible implementation manner, the processing unit is further configured to determine that the first operator currently provides services for the terminal. The processing unit is further configured to publish second transaction information in the blockchain, where the second transaction information is used to indicate that the first operator currently provides services for the terminal. In this way, it is convenient for the service initiator to determine the first operator that provides services for the terminal in the blockchain according to the identification of the terminal, and then determine one or more network elements that provide services for the terminal.

It should be particularly noted that the first transaction information and the second transaction information may be the same transaction and published in the same transaction, such as the terminal identification, the first operator identification, and the first operator's service terminal mark. When the first transaction information and the second transaction information can be the same transaction, that is, when the terminal applies for opening an account, it indicates the activation of the operator.

In a possible implementation manner, the processing unit is configured to set the first correspondence between the identification of the terminal and the identification of the first operator recorded in the blockchain to an active state. When the first correspondence is set to the activated state, it means that the first operator currently provides services for the terminal.

In a possible implementation manner, the communication unit is further configured to receive the first instruction from the terminal. The processing unit is specifically configured to determine, according to the first instruction, that the first operator currently provides services for the terminal.

In a possible implementation, the processing unit is also used to determine that the current first operator does not provide services for the terminal, and used to publish the third transaction information in the blockchain. Among them, the third transaction information is used to indicate that the current first operator does not provide services for the terminal.

In a possible implementation manner, the processing unit is configured to set the first correspondence between the identification of the terminal and the identification of the first operator recorded in the blockchain to an inactive state. Setting the first correspondence relationship to an inactive state indicates that the first operator does not provide services for the terminal. Since the terminal can subscribe to multiple operators, and one operator may provide services for the terminal at a certain moment, if the BCAMF network element determines that the current first operator does not provide services for the terminal, the first corresponding relationship is set to non- The activated state is convenient for the service initiator network element to determine from the blockchain that the current first operator does not provide services for the terminal through the inactive state of the first corresponding relationship when interacting with the terminal.

In a possible implementation manner, the processing unit is further configured to publish fourth transaction information in the blockchain, where the fourth transaction information includes verification information. The verification information is used to indicate that the terminal meets the account opening requirements.

In a possible implementation manner, the communication unit is further configured to send an account opening acceptance message to the terminal, and the account opening acceptance message includes at least the user permanent identity SUPI allocated by the BCAMF network element to the terminal. In this way, it is convenient for the terminal to register to the network of the first operator through SUPI after opening an account.

In a possible implementation, the processing unit is also used to publish seventh transaction information in the blockchain, the seventh transaction information includes any one or more of the following information: the mapping between the SUPI and the terminal's identity Relationship, mapping relationship between GPSI and terminal identification.

In a possible implementation, the processing unit is used to send transaction information to the blockchain processing function BCHF network element through the communication unit, and the BCHF network element is used to publish transaction information in the blockchain. The transaction information includes: first Any one or more of transaction information, second transaction information, third transaction information, fourth transaction information, and seventh transaction information. In this way, when the BCAMF network element does not have the function of processing the blockchain, the BCHF network element can issue transaction information as an agent. Or, when the BCAMF network element has the function of processing the blockchain, the BCHF network element agent issuing transaction information can reduce the processing burden of the BCAMF network element.

In a possible implementation, the processing unit is specifically configured to verify in the blockchain that the terminal meets some or all of the requirements in the account opening requirements, such as age, no criminal record, etc., according to the terminal's identity.

As another example, an embodiment of the present application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using a blockchain may be a BCAMF network element or a chip in the BCAMF network element. When the device that uses the blockchain to provide services to the terminal is a BCAMF network element, the communication unit may be a communication interface or include one or more modules with the function of receiving or sending information, and the processing unit may be a processor or include a Or multiple modules with processing capabilities. The device for providing services for the terminal using the blockchain may also include a storage unit. The storage unit may be a memory. The storage unit is used to store computer program code, and the computer program code includes instructions. The processing unit executes the instructions stored in the storage unit, so that the BCAMF network element implements the first aspect or any one of the possible implementations of the first aspect described in the method for providing services for the terminal by using the blockchain. When the device that uses the blockchain to provide services to the terminal is a chip in a BCAMF network element, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, pin or circuit, and so on. The processing unit executes the computer program code stored in the storage unit, so that the BCAMF network element implements the first aspect or any one of the possible implementations of the first aspect described in a method for using a blockchain to provide services to the terminal The storage unit can be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in the BCAMF network element .

Optionally, the processor, the communication interface and the memory are coupled with each other.

In a ninth aspect, this application provides an apparatus for providing services for terminals using a blockchain. The apparatus for providing services for terminals using a blockchain can implement the second aspect or any possible implementation method of the second aspect, Therefore, the beneficial effects of the second aspect or any possible implementation manner of the second aspect can also be achieved. The device that uses the blockchain to provide services to the terminal may be a BCAMF network element, or a device that can support the BCAMF network element to implement the second aspect or any possible implementation method of the second aspect, for example, it is applied to a BCAMF network. Yuan in the chip. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides an apparatus for providing services for a terminal using a blockchain, including: a communication unit, configured to receive an account cancellation request message from the terminal, the account cancellation request message carries the identification of the terminal, and the account cancellation The request message is used to request cancellation of the terminal's service in the first operator. The communication unit is configured to send a second message to the user data management network element, the second message includes the identification of the terminal, and the second message is used to instruct to delete the subscription data of the terminal.

In a possible implementation manner, the communication device may further include: a processing unit, configured to determine, according to the identification of the terminal, that the terminal meets the requirement of canceling the account in the blockchain. Misoperation was avoided by verification.

In a possible implementation manner, the processing unit is also used to release SUPI and/or GPSI allocated for the terminal.

In a possible implementation manner, the communication unit is also used to send an account cancellation success message to the terminal.

In a possible implementation, the processing unit is also used to publish fifth transaction information in the blockchain. The fifth transaction information includes an account cancellation transaction. The account cancellation transaction is used to indicate that the terminal has cancelled the terminal’s presence at the first operator. In the service. By publishing the account cancellation transaction, it is convenient for other members in the blockchain to determine that the terminal has cancelled the service of the terminal in the first operator.

In a possible implementation manner, the processing unit is further configured to send the fifth transaction information to the blockchain processing function BCHF network element through the communication unit, and the BCHF network element is used to publish the transaction information fifth in the blockchain.

For the content of the subscription data of the terminal in the ninth aspect, reference may be made to the description in the first aspect, which will not be repeated here.

As another example, an embodiment of the present application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using a blockchain may be a BCAMF network element or a chip in the BCAMF network element. When the device that uses the blockchain to provide services to the terminal is a BCAMF network element, the communication unit may be a communication interface or include one or more modules with the function of receiving or sending information, and the processing unit may be a processor or include a Or multiple modules with processing capabilities. The device for providing services for the terminal using the blockchain may also include a storage unit. The storage unit may be a memory. The storage unit is used to store computer program code, and the computer program code includes instructions. The processing unit executes the instructions stored in the storage unit, so that the BCAMF network element implements the second aspect or any one of the possible implementations of the second aspect described in the method for providing services for the terminal by using the blockchain. When the device that uses the blockchain to provide services to the terminal is a chip in a BCAMF network element, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, pin or circuit, and so on. The processing unit executes the computer program code stored in the storage unit to enable the BCAMF network element to implement the second aspect or any one of the possible implementations of the second aspect described in a method for providing services for the terminal using the blockchain The storage unit can be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in the BCAMF network element .

In a tenth aspect, this application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using a blockchain can implement the third aspect or any possible implementation method of the third aspect, Therefore, the beneficial effects of the third aspect or any possible implementation manner of the third aspect can also be achieved. The device that uses the blockchain to provide services to the terminal may be a BCAMF network element, or a device that can support the BCAMF network element to implement the third aspect or any possible implementation method of the third aspect, for example, it is applied to a BCAMF network. Yuan in the chip. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an apparatus for providing services for a terminal using a blockchain provided in an embodiment of the present application includes: a communication unit for receiving an update service request message from the terminal, and the update service request message carries an identification of the terminal , The update service request message is used to request to update the service of the terminal in the first operator; the communication unit is used to send a third message to the user data management network element, the third message includes the identification of the terminal and the updated subscription data.

In a possible embodiment, the processing unit is configured to determine in the block chain that the terminal meets the update service requirement according to the identification of the terminal.

In a possible embodiment, the communication unit is further configured to send an update success message to the terminal. The update success message is used to indicate that the service of the terminal has been successfully updated.

In a possible embodiment, the processing unit is also used to publish update service transactions in the blockchain. The updated service transaction includes the updated service of the terminal in the first operator.

In a possible embodiment, the processing unit is further configured to update the APN list or the network slice list of the terminal.

In a possible embodiment, the processing unit is further configured to publish sixth transaction information in the blockchain, where the sixth transaction information includes the updated service of the terminal in the first operator.

In a possible implementation manner, the processing unit is used to send the sixth transaction information to the blockchain processing function BCHF network element through the communication unit, and the BCHF network element is used to issue the sixth transaction information in the blockchain.

As another example, an embodiment of the present application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using a blockchain may be a BCAMF network element or a chip in the BCAMF network element. When the device that uses the blockchain to provide services to the terminal is a BCAMF network element, the communication unit may be a communication interface or include one or more modules with the function of receiving or sending information, and the processing unit may be a processor or include a Or multiple modules with processing capabilities. The device for providing services for the terminal using the blockchain may also include a storage unit. The storage unit may be a memory. The storage unit is used to store computer program code, and the computer program code includes instructions. The processing unit executes the instructions stored in the storage unit, so that the BCAMF network element implements the third aspect or any one of the possible implementations of the third aspect described in the method of using the blockchain to provide services for the terminal. When the device that uses the blockchain to provide services to the terminal is a chip in a BCAMF network element, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, pin or circuit, and so on. The processing unit executes the computer program code stored in the storage unit to enable the BCAMF network element to implement the third aspect or any one of the possible implementations of the third aspect described in the method for providing services for the terminal using the blockchain The storage unit can be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in the BCAMF network element .

In an eleventh aspect, this application provides a device that uses a blockchain to provide services to a terminal. The device that uses a blockchain to provide services to a terminal can implement the fourth aspect or any possible implementation method of the fourth aspect. Therefore, the beneficial effects of the fourth aspect or any possible implementation manner of the fourth aspect can also be achieved. The device that uses the blockchain to provide services to the terminal may be a first network element, or a device that can support the first network element to implement the fourth aspect or any possible implementation method of the fourth aspect, for example, Applied to the chip in the first network element. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides a device for providing services for a terminal using a blockchain, including: a communication unit, configured to send a first message to a user plane data management network element, the first message being used to indicate that the device Registered as a network element that provides services to the terminal, the first message includes the terminal's identity or SUPI; the device and the user plane data management network element belong to the first operator; the communication unit is used to receive instructions from the user plane data management network element A response message for successful registration; a processing unit for publishing the first transaction information of the information of the device that provides services for the terminal in the blockchain.

In a possible embodiment, the communication unit is also used to send a second message to the user plane data management network element, and the second message is used to indicate that the device is canceled as a network element that provides services to the terminal; the communication unit is also used To receive a response message from the user plane data management network element indicating that the cancellation is successful. The processing unit is also used to publish second transaction information in the blockchain, where the second transaction information includes the information marked as invalid for the device that provides the service for the terminal. In this way, when the terminal is separated from the network of the first operator, it is convenient for the network element calling the terminal to determine that the first network element is unavailable.

In a possible embodiment, the processing unit is configured to send the first transaction information to the BCHF network element through the communication unit, and the BCHF network element is configured to publish the first transaction information in the blockchain.

In a possible embodiment, the processing unit is configured to send the second transaction information to the BCHF network element through the communication unit, and the BCHF network element is configured to publish the second transaction information in the blockchain.

In a possible embodiment, the device is any one or more of a mobility management network element, a session management network element, or a service call session control function S-CSCF network element.

In another example, an embodiment of the present application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using the blockchain may be a first network element or a device in the first network element. chip. When the device that uses the blockchain to provide services to the terminal is the first network element, the communication unit may be a communication interface or include one or more modules with the function of receiving or sending information, and the processing unit may be a processor or include One or more modules with processing capabilities. The device for providing services for the terminal using the blockchain may also include a storage unit. The storage unit may be a memory. The storage unit is used to store computer program code, and the computer program code includes instructions. The processing unit executes the instructions stored in the storage unit to enable the first network element to implement the fourth aspect or any one of the possible implementations of the fourth aspect described in the method for providing services for the terminal using the blockchain . When the device that uses the blockchain to provide services to the terminal is a chip in the first network element, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, pin or circuit, and so on. The processing unit executes the computer program code stored in the storage unit to enable the first network element to implement the fourth aspect or any one of the possible implementation manners of the fourth aspect described in the use of the blockchain to provide services for the terminal Method, the storage unit may be a storage unit (for example, register, cache, etc.) in the chip, or a storage unit (for example, read only memory, random access memory, etc.) located outside the chip in the first network element. Wait).

In a twelfth aspect, this application provides a device that uses a blockchain to provide services to a terminal. The device that uses a blockchain to provide services to a terminal can implement the fifth aspect or any possible implementation method of the fifth aspect. Therefore, the beneficial effects of the fifth aspect or any possible implementation manner of the fifth aspect can also be achieved. The device that uses the blockchain to provide services to the terminal may be a user data management network element, or may be a device that can support the user data management network element to implement the fifth aspect or any possible implementation method of the fifth aspect, for example, Applied to the chip in the user data management network element. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides an apparatus for using a blockchain to provide services for a terminal, including: a communication unit, configured to receive a first message from a first network element, and the first message is used to indicate that the first network The element is registered as a network element that provides services to the terminal, and the first message includes the identification or SUPI of the terminal. The first network element and the device belong to the first operator. The processing unit is configured to publish the first transaction information in the blockchain, where the first transaction information is used to indicate that the first operator currently provides services for the terminal.

In a possible embodiment, the communication unit is further configured to receive a second message from the first network element, where the second message is used to indicate that the first network element is cancelled as a network element that provides services to the terminal. The processing unit is also used to publish second transaction information in the blockchain, the second transaction information includes any one or more of the following: the information of the first network element marked as invalid for the terminal to provide services, or the current The record of the service provided by the first operator for the terminal is set to an inactive state.

In another example, an embodiment of the present application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using a blockchain may be a user data management network element or a user data management network element. Inside the chip. When the device that uses the blockchain to provide services to the terminal is a user data management network element, the communication unit may be a communication interface or include one or more modules with the function of receiving or sending information, and the processing unit may be a processor or Including one or more modules with processing capabilities. The device for providing services for the terminal using the blockchain may also include a storage unit. The storage unit may be a memory. The storage unit is used to store computer program code, and the computer program code includes instructions. The processing unit executes the instructions stored in the storage unit to enable the user data management network element to implement the fifth aspect or any one of the possible implementation manners of the fifth aspect described in the use of the blockchain to provide services to the terminal method. When the device that uses the blockchain to provide services to the terminal is a chip in a user data management network element, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, pin or circuit, and so on. The processing unit executes the computer program code stored in the storage unit to enable the user data management network element to implement the fifth aspect or any one of the possible implementations of the fifth aspect described in the use of blockchain to provide services for the terminal In the method, the storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit (for example, read-only memory, random access memory, etc.) located outside the chip in the user data management network element. Fetch memory, etc.).

In the thirteenth aspect, this application provides a device that uses a blockchain to provide services to a terminal. The device that uses a blockchain to provide services to a terminal can implement the sixth aspect or any possible implementation of the sixth aspect. Therefore, the beneficial effects of the sixth aspect or any possible implementation manner of the sixth aspect can also be achieved. The device that uses the blockchain to provide services to the terminal may be a BCHF network element, or a device that can support the BCHF network element to implement the sixth aspect or any possible implementation method of the sixth aspect, for example, it is applied to a BCHF network Yuan in the chip. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides an apparatus for providing services for a terminal by using a blockchain, including: a communication unit, configured to receive a first request message from a service initiating network element, the first request message including the identification or SUPI, the first request message is used to request first information, and the first information is used to determine one or more network elements that provide services for the terminal; the processing unit is used to obtain information from the blockchain according to the terminal identifier Get the first information. The communication unit is configured to send the first information to the service initiating network element.

In a possible embodiment, the first request message carries a first indication, and the first indication is used by the processing unit to determine information about one or more network elements that provide services for the terminal requested by the service initiating network element.

In a possible embodiment, the first information is: information of one or more network elements that provide services for the terminal. In this way, it is convenient for the service initiating network element to determine one or more network elements currently providing services for the terminal based on the information of one or more network elements.

In another example, an embodiment of the present application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using a blockchain may be a BCHF network element or a chip in the BCHF network element. When the device that uses the blockchain to provide services to the terminal is a BCHF network element, the communication unit may be a communication interface or include one or more modules with the function of receiving or sending information, and the processing unit may be a processor or include a Or multiple modules with processing capabilities. The device for providing services for the terminal using the blockchain may also include a storage unit. The storage unit may be a memory. The storage unit is used to store computer program code, and the computer program code includes instructions. The processing unit executes the instructions stored in the storage unit, so that the BCHF network element implements the method for providing services for the terminal by using the blockchain described in the sixth aspect or any one of the possible implementation manners of the sixth aspect. When the device that uses the blockchain to provide services to the terminal is a chip in a BCHF network element, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, pin or circuit, and so on. The processing unit executes the computer program code stored in the storage unit to enable the BCHF network element to implement the method for providing services for the terminal using the blockchain as described in the sixth aspect or any one of the possible implementation manners of the sixth aspect The storage unit can be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in the BCHF network element .

In a fourteenth aspect, this application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using a blockchain can implement the seventh aspect or any possible implementation method of the seventh aspect. Therefore, the beneficial effects of the seventh aspect or any possible implementation manner of the seventh aspect can also be achieved. The device that uses the blockchain to provide services to the terminal may be a service initiating network element, or a device that can support the service initiating network element to implement the seventh aspect or any possible implementation method of the seventh aspect, for example, The chip in the service initiating network element. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides an apparatus for using a blockchain to provide services for a terminal, including: a communication unit configured to obtain first information from the blockchain according to an identifier of the terminal. The first information is used to determine one or more network elements that provide services for the terminal. The processing unit is configured to determine one or more network elements that provide services for the terminal according to the first information; the processing unit is also configured to interact with any one of the one or more network elements, and perform The terminal provides services.

In a possible embodiment, the communication unit is configured to send a first request message to a blockchain processing function BCHF network element, where the first request message includes an identifier of the terminal, and the first request message is used for Request first information, where the first information is used to determine one or more network elements that provide services for the terminal; a communication unit is used to receive the first information from the BCHF.

In another example, an embodiment of the present application provides an apparatus for providing services for a terminal using a blockchain. The apparatus for providing services for a terminal using the blockchain may be a service initiator network element or a service initiator network element. Inside the chip. When the device that uses the blockchain to provide services to the terminal is a service initiator network element, the communication unit may be a communication interface or include one or more modules with the function of receiving or sending information, and the processing unit may be a processor or Including one or more modules with processing capabilities. The device for providing services for the terminal using the blockchain may also include a storage unit. The storage unit may be a memory. The storage unit is used to store computer program code, and the computer program code includes instructions. The processing unit executes the instructions stored in the storage unit to enable the service initiator network element to implement the seventh aspect or any one of the possible implementation manners of the seventh aspect described in the use of blockchain to provide services to the terminal method. When the device that uses the blockchain to provide services to the terminal is a chip in the service initiator network element, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. For example, the communication interface may be an input/output interface, pin or circuit, and so on. The processing unit executes the computer program code stored in the storage unit, so that the service initiator network element implements the seventh aspect or any one of the possible implementations of the seventh aspect described in the use of blockchain to provide services to the terminal In the method, the storage unit can be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit (for example, read-only memory, random memory, etc.) located outside the chip in the service initiator network element. Fetch memory, etc.).

In the fifteenth aspect, the embodiments of the present application provide a computer-readable storage medium, and the computer-readable storage medium stores a computer program or instruction. When the computer program or instruction runs on the computer, the computer can execute the operations as described in the first aspect to The method described in any one of the possible implementations of the first aspect uses the blockchain to provide services for the terminal.

In the sixteenth aspect, the embodiments of the present application provide a computer-readable storage medium. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction runs on the computer, the computer executes the operations as described in the second aspect to The method described in any one of the possible implementations of the second aspect uses the blockchain to provide services for the terminal.

In the seventeenth aspect, the embodiments of the present application provide a computer-readable storage medium. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction runs on the computer, the computer executes the operations as described in the third aspect to The method for providing services for the terminal by using the blockchain described in any one of the possible implementations of the third aspect.

In the eighteenth aspect, the embodiments of the present application provide a computer-readable storage medium. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction runs on the computer, the computer can execute the fourth aspect to The method of using the blockchain to provide services for the terminal described in any one of the possible implementations of the fourth aspect.

In the nineteenth aspect, the embodiments of the present application provide a computer-readable storage medium. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction runs on a computer, the computer can execute the operations as described in the fifth aspect to The method for providing services for the terminal using the blockchain described in any one of the possible implementations of the fifth aspect.

In the twentieth aspect, the embodiments of the present application provide a computer-readable storage medium. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction is run on the computer, the computer can execute the operations as described in the sixth aspect to The method for providing services for the terminal using the blockchain described in any one of the possible implementations of the sixth aspect.

In the twenty-first aspect, an embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction runs on a computer, the computer executes the seventh aspect. The method described in any one of the possible implementation manners to the seventh aspect using the blockchain to provide services for the terminal.

In the twenty-second aspect, the embodiments of the present application provide a computer program product including instructions. When the instructions run on a computer, the computer executes the first aspect or one of the various possible implementations of the first aspect. A method of using blockchain to provide services to the terminal.

In the twenty-third aspect, this application provides a computer program product including instructions. When the instructions run on a computer, the computer executes the second aspect or a utilization area described in the various possible implementations of the second aspect. Blockchain provides a method for the terminal to provide services.

In the twenty-fourth aspect, the embodiments of the present application provide a computer program product that includes instructions. When the instructions run on a computer, the computer executes the third aspect or one of the various possible implementations of the third aspect. A method of using blockchain to provide services to the terminal.

In the twenty-fifth aspect, this application provides a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute a utilization area described in the fourth aspect or various possible implementations of the fourth aspect. Blockchain provides a method for the terminal to provide services.

In the twenty-sixth aspect, this application provides a computer program product including instructions. When the instructions are run on a computer, the computer executes a utilization area described in the fifth aspect or various possible implementations of the fifth aspect. Blockchain provides a method for the terminal to provide services.

In the twenty-seventh aspect, the present application provides a computer program product including instructions. When the instructions run on a computer, the computer executes a utilization area described in the sixth aspect or various possible implementations of the sixth aspect. Blockchain provides a method for the terminal to provide services.

In the twenty-eighth aspect, the present application provides a computer program product that includes instructions. When the instructions run on a computer, the computer executes a utilization area described in the seventh aspect or various possible implementations of the seventh aspect. Blockchain provides a method for the terminal to provide services.

In a twenty-ninth aspect, an embodiment of the present application provides a communication system, which includes: a blockchain account management function BCAMF network element and a user plane data management network element. Among them, the blockchain account management function BCAMF network element is used to implement the method of using the blockchain to provide services for the terminal described in the first aspect, or the BCAMF network element is used to perform the use of the blockchain as the terminal described in the second aspect The method of providing services, or the BCAMF network element is used to implement the method of providing services for the terminal by using the blockchain as described in the third aspect. For the specific process, reference may be made to the description of the first aspect, the second aspect, or the third aspect, which will not be repeated here.

In a possible example, the system further includes the terminal involved in the first aspect, the terminal involved in the second aspect, or the terminal involved in the third aspect.

In a thirtieth aspect, an embodiment of the present application provides a communication system, which includes: a first network element and a user plane data management network element. Among them, the first network element is used to perform the method of using the blockchain to provide services to the terminal described in the fourth aspect, and the user plane data management network element is used to perform the method of using the blockchain to provide services to the terminal described in the fifth aspect. method. The specific process can refer to the description of the fourth aspect and the fifth aspect, which will not be repeated here.

In a thirty-first aspect, an embodiment of the present application provides a communication system. The communication system includes: a BCHF network element and a service initiating network element. Among them, the service initiating network element is used to implement the method of using the blockchain to provide services to the terminal described in the seventh aspect, and the BCHF network element is used to implement the method of using the blockchain to provide services to the terminal described in the sixth aspect. For the specific process, please refer to the descriptions of the seventh aspect and the sixth aspect, which will not be repeated here.

In a thirty-second aspect, an embodiment of the present application provides a communication device that includes a processor and a storage medium. The storage medium stores instructions. When the instructions are executed by the processor, the implementation is as in the first aspect. , The second aspect, the third aspect, the fourth aspect, the fifth aspect, the sixth aspect, or the seventh aspect described in the various possible implementation manners of the method of using the blockchain to provide services for the terminal.

In the thirty-second aspect, an embodiment of the present application provides a communication device that includes one or more modules for implementing the first aspect, the second aspect, the third aspect, the fourth aspect, and the fifth aspect. , The sixth aspect, the seventh aspect, the one or more modules can be combined with the above-mentioned first aspect, second aspect, third aspect, fourth aspect, fifth aspect, sixth aspect, seventh aspect The steps correspond to each other.

In a thirty-third aspect, an embodiment of the present application provides a chip that includes a processor and a communication interface, and the communication interface is coupled to the processor. The processor is used to run a computer program or instruction to implement the first aspect or the first aspect. A method of using blockchain to provide services for terminals described in various possible implementations. The communication interface is used to communicate with modules other than the chip.

In a thirty-fourth aspect, an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the second aspect or the second aspect A method of using blockchain to provide services for terminals described in various possible implementations. The communication interface is used to communicate with other modules outside the chip.

In a thirty-fifth aspect, an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the third aspect or the third aspect. A method of using blockchain to provide services for terminals described in various possible implementations. The communication interface is used to communicate with modules other than the chip.

In a thirty-sixth aspect, an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the fourth aspect or the fourth aspect. A method of using blockchain to provide services for terminals described in various possible implementations. The communication interface is used to communicate with other modules outside the chip.

In a thirty-seventh aspect, an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the fifth aspect or the fifth aspect. A method of using blockchain to provide services for terminals described in various possible implementations. The communication interface is used to communicate with other modules outside the chip.

In a thirty-eighth aspect, an embodiment of the present application provides a chip that includes a processor and a communication interface, and the communication interface is coupled to the processor. The processor is used to run a computer program or instruction to implement the sixth aspect or the sixth aspect. A method of using blockchain to provide services for terminals described in various possible implementations. The communication interface is used to communicate with modules other than the chip.

In a thirty-ninth aspect, an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the seventh aspect or the seventh aspect. A method of using blockchain to provide services for terminals described in various possible implementations. The communication interface is used to communicate with other modules outside the chip.

Specifically, the chip provided in the embodiment of the present application further includes a memory for storing computer programs or instructions.

Any device or computer storage medium or computer program product or chip or communication system provided above is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding method provided above The beneficial effects of the corresponding solutions in the method will not be repeated here.

Description of the drawings

FIG. 1 is a schematic diagram of a communication system provided by an embodiment of this application;

FIG. 2 is a schematic diagram of a 5G architecture provided by an embodiment of the application;

FIG. 3 is a schematic diagram of another 5G architecture provided by an embodiment of the application;

FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of this application;

Fig. 5-Fig. 11 are schematic flowcharts of a method for providing services for a terminal by using a blockchain according to an embodiment of the application;

FIG. 12 is a first structural diagram of a communication device provided by an embodiment of this application;

FIG. 13 is a second structural diagram of a communication device provided by an embodiment of this application;

FIG. 14 is a schematic structural diagram of a chip provided by an embodiment of the application.

detailed description

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same items or similar items that have substantially the same function and effect. For example, the first operator and the second operator are only to distinguish different operators, and the order of their order is not limited. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not limit the difference.

It should be noted that in this application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in this application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.

The network architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a). For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

The technical solutions of the embodiments of the present application can be applied to various communication systems. For example, long term evolution (LTE) systems, 5G communication systems, and various future-oriented communication systems. The term "system" can be used interchangeably with "network".

Before introducing the embodiments of this application, first introduce the relevant terms involved in the embodiments of this application:

1. Blockchain is a distributed ledger technology based on cryptography principles and consensus algorithms. Blockchain participants (for example, alliance members in the blockchain) can use the blockchain to record and share information, and the information can be Represents contracts, identification, transaction information and other digitized assets. The information in the blockchain is decentralized, permanent, transparent, and traceable. Once recorded in the blockchain, it can hardly be changed or revoked.

The main content of the blockchain includes: digital signatures based on asymmetric encryption, distributed ledger management and smart contracts.

2. Smart contract (Smart contract) is a computer protocol designed to spread, verify or execute contracts in an information-based way that can be deployed on the blockchain. The corresponding operations can be implemented by declaring business logic in the smart contract. Smart contracts allow for trusted transactions without a third party. These transactions are traceable and irreversible. Smart contracts can provide better security than traditional contract methods and reduce other transaction costs related to contracts.

As shown in Fig. 1, Fig. 1 shows a communication system to which a method for processing terminal subscription data provided by an embodiment of the present application is applied. The communication system includes: a terminal 10, a blockchain account management function function, BCAMF) network element 20. The terminal 10 may communicate with the BCAMF network element 20 in a wired or wireless manner. For example, the terminal 10 may communicate with the BCAMF network element 20 through wireless-fidelity (WIFI).

Exemplarily, the terminal 10 may have applications (applications, APPs) corresponding to one or more operators, and the address of the BCAMF network element 20 of each of the one or more operators may be configured in the operator’s On the APP, the terminal 10 can communicate with the corresponding BCAMF network element 20 through the APP of each operator.

In an optional implementation manner, the communication system may further include: a user data management network element 30 and a blockchain processing function (blockchain handling function, BCHF) network element 40.

Optionally, each operator may correspond to one or more BCAMF network elements 20, and the BCAMF network element 20 corresponding to any operator is used to process the request of the terminal 10 to open an account in the operator, cancel the account or update the contract data , And the user data management network element 30 responsible for notifying the operator of the contract data and security data written into the terminal 10, deleting the contract data, and updating the contract data.

When the BCAMF network element 20 does not support blockchain-related operations, the BCAMF network element 20 uses the BCHF network element 40 as a proxy to write the business records of the BCAMF network element 20 into the blockchain, or writes the blockchain to the BCAMF-related business Record notification BCAMF.

The BCHF network element 40 serves as a blockchain processing function. This function is used as a link between the 5G network and the blockchain when the 5G network element (for example, the BCAMF network element 20 or the user data management network element 30) does not have the blockchain processing function. The agent is responsible for publishing the network processing information as transaction information to the blockchain, and at the same time publishing the blockchain and network-related things to the network elements of the network. The blockchain processing functions include but are not limited to: publishing transaction information, recording blocks, executing smart contracts and other functions.

Wherein, there is a first interface between the terminal 10 and the BCAMF network element 20. For example, the first interface may be a Ny interface. There is a second interface between the user data management network element 30 and the BCAMF network element 20. There is a third interface between the BCHF network element 40 and the BCAMF network element 20. For example, the first interface may be: Ny interface. The second interface may be an Nx interface. The third interface may be an Nz interface. The embodiment of the present application does not limit the names between the first interface, the second interface, and the third interface, and this is only an example.

In the embodiments of this application, a blockchain platform is established. One or more mobile network operators (mobile network operators, MNOs) (referred to as operators) participate in the blockchain as transmission network providers. The operation can be based on the alliance of operators. Mainly, or initiated by leading companies in the communications industry to invite operators to participate, or solution providers can establish and invite operators and industry customers to use it. If a single operator cannot cover the business needs of industry users, multiple operators need to join the blockchain alliance to jointly serve the industry users. In order to achieve the integration of terminal data within the alliance and the realization of terminal-centric data management, the participating members of the blockchain can negotiate to assign a unified terminal identifier to the terminal (for example, the global permanent blockchain ID , GPBC ID). The terminal’s identity complies with international standards and is unique within the alliance or globally.

In the embodiment of the present application, the BCHF network element 40 and the BCAMF network element 20 may be deployed together or separately. Figure 1 takes the two separate deployments as an example. When the BCHF network element 40 and the BCAMF network element 20 are deployed in one, the BCHF network element 40 or the BCAMF network element 20 has the ability to process the terminal’s account opening request, verify whether the terminal meets the account opening requirements in the blockchain, and process the terminal’s account cancellation or update Service functions, and publish the registration information and contract data of the terminal 10 as a transaction to the blockchain, and obtain and process information related to the BCAMF network element 20 from the blockchain.

User data management network element 30: used to store authentication data of the terminal and subscription data of the terminal. Taking the 5GC as the core network that the terminal accesses as an example, the corresponding network element or entity of the user data management network element 30 in the 5GC can be a unified data management (UDM) network element and a user data repository (user data repository). , UDR) network element and user home subscriber server (home subscriber server, HSS) network element. It can be understood that in future communications, the network element responsible for storing the authentication data of the terminal and the subscription data of the terminal may still be a UDM network element or have other names, which is not limited by this application.

In an optional embodiment, the communication system may further include: a mobility management network element and a session management network element.

Exemplarily, taking the core network as 5GC as an example, as shown in Figure 2, in addition to the network elements involved in Figure 1 above, the 5GC may also include: radio access network (RAN) network elements , User plane function (UPF) network element, data network (data network, DN), access and mobility management function (access and mobility management function, AMF) network element, session management function (session management function, SMF) network element, policy control function (policy control function) network element.

The mobility management network element is responsible for terminal access management and mobility management. In practical applications, it includes the mobility management entity (mobility management entity, MME) in the long-term evolution (LTE) network framework. Management function, and added access management function. Taking the core network that the terminal accesses is 5GC as an example, the corresponding network element or entity of the mobility management network element in the 5GC may be an AMF network element. The network element or entity corresponding to the session management network element in the 5GC may be an SMF network element. In future communications, such as 6G, the mobility management network element may still be an AMF network element or have other names, which is not limited by this application.

Among them, the terminal communicates with the AMF network element through the N1 interface (N1 for short). The AMF entity communicates with the SMF network element through the N11 interface (N11 for short). The SMF network element communicates with one or more UPF network elements through the N4 interface (N4 for short). Any two UPF network elements among one or more UPF network elements communicate through an N9 interface (abbreviated as N9). The UPF network element communicates with the data network (DN) managed and controlled by the AF network element through the N6 interface (N6 for short). The terminal accesses the network through an access network element (for example, a RAN network element), and the RAN network element and the AMF network element communicate through an N2 interface (abbreviated as N2). The SMF network element communicates with the PCF network element through the N7 interface (N7 for short), and the PCF network element communicates with the AF network element through the N5 interface. The RAN network element communicates with the UPF network element through the N3 interface (N3 for short). Any two AMF network elements communicate through the N14 interface (N14 for short). The SMF network element communicates with the UDM through the N10 interface (N10 for short). The AMF network element communicates with AUSF through the N12 interface (N12 for short). The AMF network element communicates with the UDM network element through the N8 interface (N8 for short).

It should be understood that, in the network architecture shown in FIG. 2, the control plane network elements may also interact with each other using a service interface. For example, as shown in Figure 3, AMF network elements, SMF network elements, UDM network elements, or PCF network elements interact with each other using a service-oriented interface. For example, the service-oriented interface provided by the AMF network element to the outside may be Namf. The service-oriented interface provided by the SMF network element to the outside may be Nsmf. The service-oriented interface provided by the UDM network element to the outside may be Nudm. The service-oriented interface provided by the PCF network element to the outside may be Npcf. It should be understood that the relevant description of the names of various service-oriented interfaces can refer to the 5G system architecture (5G system architecture) diagram in the 23501 standard, which will not be repeated here.

It should be noted that if the business requires interaction between the BCHF network element 40 and other 5G network elements (AMF network element, SMF network element), there are also interfaces between the BCHF network element 40 and the AMF network element and the SMF network element.

The BCHF network element 40 may be an independent functional module, which is deployed independently of the 5G network element, or may be a distributed functional module and the 5G network element integrated deployment.

It should be noted that Fig. 2 or Fig. 3 only exemplarily shows a UPF network element or SMF network element. Of course, this may include multiple UPF network elements and SMF network elements, such as SMF network element 1 and SMF network element 2, which is not specifically limited in the embodiment of the present application.

It should be noted that the access network element, AMF network element, SMF network element, UDM network element, UPF network element, and PCF network element in FIG. 2 or FIG. 3 are only a name, and the name does not constitute a limitation on the device itself. In 5G networks and other networks in the future, the network elements or entities corresponding to RAN network elements, AMF network elements, SMF network elements, UDM network elements, UPF network elements, and PCF network elements can also have other names. This application is implemented The example does not make specific restrictions on this. For example, the UDM network element may also be replaced with a user home server (home subscriber server, HSS) or user subscription database (user subscription database, USD) or a database entity, etc., which will be uniformly explained here and will not be repeated in the following .

Optionally, the terminal in this application may also be referred to as terminal equipment, user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, User terminal, terminal, wireless communication device, user agent or user device. The terminal device can be a station (STA) in a wireless local area network (WLAN), a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, and a wireless local loop (wireless local loop). loop, WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, For example, terminal equipment in a fifth-generation (fifth-generation, 5G) communication network or terminal equipment in a public land mobile network (PLMN) network that will evolve in the future.

As an example, in the embodiment of the present invention, the terminal may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets and smart jewelry for physical sign monitoring.

FIG. 4 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application. For the hardware structure of the terminal 10, the BCAMF network element 20, the user data management network element 30, and the first network element in the embodiment of the present application, reference may be made to the structure shown in FIG. 4. The communication device includes a processor 41, a communication line 44, and at least one communication interface 43.

The processor 41 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.

The communication line 44 may include a path to transmit information between the aforementioned components.

The communication interface 43 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, RAN, WLAN, and so on.

Optionally, the communication device may further include a memory 42.

The memory 42 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this. The memory can exist independently and is connected to the processor through the communication line 44. The memory can also be integrated with the processor.

The memory 42 is used to store computer execution instructions for executing the solution of the application, and the processor 41 controls the execution. The processor 41 is configured to execute computer-executable instructions stored in the memory 42 to implement the wireless bearer configuration method provided in the following embodiments of the present application.

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.

In a specific implementation, as an embodiment, the processor 41 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4.

In a specific implementation, as an embodiment, the communication device may include multiple processors, such as the processor 41 and the processor 45 in FIG. 4. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).

In the embodiment of this application, the specific structure of the executive body of the method of providing services for the terminal by using the blockchain is not particularly limited in the embodiment of this application, as long as a utilization area of the embodiment of this application can be recorded through the operation. The program of the code of the method for the block chain to provide services to the terminal can be communicated by a method of using the block chain to provide services for the terminal according to an embodiment of the present application. For example, a block chain is provided in the embodiment of the present application. The execution subject of the method for the chain to provide services to the terminal may be a functional module in the BCAMF network element that can call and execute the program, or a communication device, such as a chip, applied to the BCAMF network element, which is not limited in this application. The following embodiments are described by taking an example in which the execution subject of a method for providing services for a terminal by using a blockchain is a BCAMF network element.

As shown in FIG. 5, FIG. 5 shows a method for providing services for a terminal by using a blockchain according to an embodiment of the present application, and the method includes:

Step 501: The terminal 10 sends an account opening request (registration request) message to the BCAMF network element 20 of the first operator, so that the BCAMF network element 20 receives the account opening request message from the terminal 10. The account opening request message includes the identifier of the terminal 10, and the account opening request message is used to request the terminal 10 to open an account in a first operator (operator).

Exemplarily, the identity of the terminal 10 may be a unified identity assigned to the terminal 10 by all parties participating in the alliance in the blockchain. The identifier of the terminal 10 may also be referred to as a global unified blockchain ID (global permanent blockchain ID, GPBC ID). The GPBC ID complies with international standards and is unique within the blockchain or globally.

The GPBC ID itself has nothing to do with the service, that is, when the service provider is changed, the ID of the terminal remains the same. For example, when the operator is changed, the GPBC ID remains the same, and only belongs to the terminal's identification.

For example, the terminal 10 has an APP corresponding to the first operator, and the terminal 10 can use the APP to send an account opening request message to the BCAMF network element 20.

In an optional example, the account opening request message may also include the service that the terminal requests to purchase from the first operator. For example, the account opening request message may also include any one or more of the following information requested by the terminal: an access point name (APN) list and a network slice (network slice) list.

Wherein, the APN list includes one or more APNs of the first operator requested by the terminal. The network slice list includes one or more network slices of the first operator requested by the terminal, that is, one or more network slices requested by the terminal to purchase from the first operator.

Step 502: The BCAMF network element 20 verifies that the terminal meets the account opening requirements according to the identification of the terminal 10.

In a possible implementation manner, step 502 in the embodiment of the present application can be implemented in the following manner: the BCAMF network element 20 verifies in the blockchain that the terminal 10 meets the account opening requirements according to the identification of the terminal 10. Exemplary. The BCAMF network element 20 verifies in the blockchain that the terminal 10 meets some or all of the requirements for opening an account according to the identification of the terminal 10.

For example, the requirements for legally opening an account on the terminal are A, B, and C, and other participants in the blockchain have verified A and B among them. Then the BCAMF network element 20 of the first operator can use the results recorded in the blockchain that the terminal has verified items A and B, and only verify C. Or other participants of the blockchain have verified all three items A, B, and C, then the BCAMF network element 20 of the first operator can obtain the terminal from the blockchain and other participants have verified A The results of item, B, and C will directly open an account for the terminal. Specific items A, B, and C can be the user's age, criminal record, valid residential address, and so on.

Specifically, step 502 may be implemented in the following manner: the BCAMF network element 20 uses the GPBC ID of the terminal 10 as an index number to view the relevance statement on the blockchain according to specific telecommunication service requirements. If the legality statement of the GPBC ID can cover all query and verification requirements of the BCAMF network element 20 for this service, and the issuer of the related statement is an entity trusted by the BCAMF network element 20, the BCAMF network element 20 determines that the verification is passed ( That is, the BCAMF network element 20 determines that the terminal 10 is legal in the blockchain). Otherwise, the BCAMF network element 20 performs related verification on the terminal 10 in an off-chain manner, such as requiring the user to upload an ID card and perform face recognition.

When the BCAMF network element 20 does not have the function of processing the blockchain, the BCAMF network element 20 sends the identification of the terminal 10 to the BCHF network element 40 so that the BCHF network element 40 can verify whether the terminal meets the account opening requirements in the blockchain. After the BCHF network element 40 verifies whether the terminal meets the account opening requirements in the blockchain, the verification result is sent to the BCAMF network element 20.

Optionally, after the BCAMF network element 20 determines that the terminal meets the account opening requirements, the BCAMF network element 20 directly or indirectly triggers the account opening smart contract for the terminal 10 through the BCHF network element 40, and generates APN and other contract data for the terminal 10, SUPI, GPSI, etc., SUPI It can be IMSI, and GPSI can be MSISDN. The smart contract process involves the transaction process in which the terminal uses the blockchain currency to purchase the operator's business, that is, the process in which the currency is transferred from the user to the operator, and this process is also written into the blockchain as a transaction.

Step 503: The BCAMF network element 20 sends a first message to the user data management network element 30 of the first operator, so that the user data management network element 30 receives the first message from the BCAMF network element 10. The first message includes the subscription data of the terminal 10.

After step 503, the user data management network element 30 can store the subscription data of the terminal 10.

Since the terminal 10 can open accounts in multiple operators, the BCAMF network element 10 in the embodiment of the present application can send the contract data of the terminal 10 at the operator A to the user data management network element of the operator A. Therefore, the contract data of the terminal 10 in step 503 is the contract data of the terminal 10 in the first operator. Through step 503, the contract data of the terminal can be stored in the user data management network element 30. The contract data of the terminal is stored in the user data management network element 30, so that when the subsequent terminal accesses the mobile network of the first operator, the mobile management network element/session management network element, etc. must obtain the contract data to authorize the terminal, such as APN Is it allowed to use.

Exemplarily, the subscription data of the terminal 10 may include: the identification of the terminal, and at least one of the following allocated by the BCAMF network element to the terminal: SUPI, generic public subscription identifier (GPSI), secret key, serial number ( sequence number, SQN), one or more APNs, one or more network slices. For example, GPSI can be the mobile station integrated service digital network number MSISDN.

The embodiment of the application provides a method for providing services for a terminal by using a blockchain. In this method, after the BCAMF network element of the first operator receives an account opening request message from the terminal and verifies that the terminal meets the account opening requirements according to the terminal's identity, Send the subscription data of the terminal to the user data management network element. In this solution, the terminal does not need to sign a contract with the first operator in advance, but when needed, select the appropriate first operator, open an account with the first operator at any time, or purchase the services of the first operator, which is convenient for realizing online It is more convenient to realize the automatic opening of an account for the terminal in the first operator than in the prior art when the user of the terminal needs to open an account in the business hall where the offline operator is located. In addition, since the identity of the terminal is always the identity of the terminal, it is inconvenient for the terminal to maintain the identity of the terminal after changing the operator, and does not affect the called service. Moreover, this method satisfies the requirement of opening an account for the terminal before using the blockchain to provide services for the terminal.

Referring to FIG. 6, as another possible embodiment of the present application, the method provided in the embodiment of the present application may further include after step 502:

Step 504: The BCAMF network element 10 sends an account opening acceptance message to the terminal 10, so that the terminal 10 receives the account opening acceptance message from the BCAMF network element 20.

Wherein, the account opening acceptance message includes at least a user permanent identity (subscription permanent identifier, SUPI) allocated to the terminal 10 by the BCAMF network element 20.

Exemplarily, the SUPI may be an international mobile subscriber identification code (international mobile subscriber identification, IMSI). Among them, the IMSI is used for the terminal 10 to register to the mobile network of the first operator.

Please continue to combine with FIG. 6, as another possible embodiment of the present application, the method provided in the embodiment of the present application may further include:

Step 505: The BCAMF network element 20 sends to the terminal 10 at least one of the following assigned by the BCAMF network element 20 to the terminal 10: MSISDN, secret key, and sequence number, so that the terminal 10 receives the MSISDN, secret key, and sequence from the BCAMF network element 20 Any one or more of the numbers.

Optionally, any one or more of the MSISDN, secret key, and serial number can be sent to the terminal 10 in a separate message. Of course, any one or more of the MSISDN, secret key, and serial number can also be carried in the foregoing Account opening acceptance message.

In the embodiment of the present application, a terminal 10 can open an account in one or more operators. After the BCAMF network element 20 of any operator opens an account in the operator for the terminal 10 online, the BCAMF network element 20 can be in the blockchain Publish transaction information, which is used to indicate that the terminal 10 opens an account in the operator. Based on this, as another embodiment of the present application, please continue to combine FIG. 6 as another possible embodiment of the present application. The method provided in the embodiment of the present application may further include after step 503:

Step 506: The BCAMF network element 20 publishes the first transaction information in the blockchain. The first transaction information includes the first correspondence between the identification of the terminal 10 and the information of the first operator. The first correspondence is used to indicate that the terminal 10 successfully opens an account in the first operator.

It is understandable that if the terminal 10 opens an account in multiple operators, the corresponding relationship between the terminal 10 and the identity of each of the multiple operators is recorded in the blockchain.

The identifier of the operator in the embodiments of this application may be the operator’s ID or the operator’s name or the operator’s mobile country code (Mobile Country Code, MCC) + mobile network code (Mobile Network Code, MNC) or other unique A mark that identifies the operator.

In the embodiment of the present application, the BCAMF network element 20 can directly publish various transaction information, terminal verification information, etc. in the blockchain. Of course, the BCAMF network element 20 can also publish various transaction information and terminal verification information in the blockchain through the BCHF network element 40. Therefore, step 506 in the embodiment of the present application can be implemented in the following manner:

Method 1. The BCAMF network element 20 directly publishes the first transaction information in the blockchain. This method can be applied to the case where the BCAMF network element 20 has a blockchain processing function.

Manner 2: The BCAMF network element 20 sends the first transaction information to the BCHF network element 40, so that after the BCHF network element 40 receives the first transaction information, the BCHF network element 40 publishes the first transaction information in the blockchain. This method can be applied to the case where the BCAMF network element 20 has or does not have a blockchain processing function. For the following procedures involving the interaction between the BCAMF network element 20 and the blockchain, reference can be made to the description here, and will not be repeated in the following.

Although, in the embodiment of the present application, one terminal can open accounts with multiple operators, but at a certain moment, one operator usually provides services for the terminal. Therefore, the BCAMF network element 20 can record in the blockchain the operator currently providing services for the terminal.

Step 507: The BCAMF network element 20 determines that the first operator currently provides services for the terminal 10.

Step 508: The BCAMF network element 20 publishes the second transaction information in the blockchain. Among them, the second transaction information is currently served by the first operator for the terminal.

As an example, step 508 in the embodiment of the present application can be implemented in the following manner: the BCAMF network element 20 sets the first correspondence between the identification of the terminal 10 recorded in the blockchain and the identification of the first operator as Active state. When the first correspondence is set to the activated state, it means that the first operator currently provides services for the terminal.

It is understandable that when the BCAMF network element 20 does not have the function of processing the blockchain, the BCAMF network element 20 sends the first notification message to the BCHF network element 40, so that the BCHF network element 40 receives the first notification message from the BCAMF network element 20. Notification message. The first notification message is used to instruct the BCHF network element 40 to set the first correspondence between the identification of the terminal 10 and the identification of the first operator recorded in the blockchain to an active state. In this way, the BCHF network element 40 can set the first correspondence to the activated state according to the first notification message. Optionally, when the BCHF network element 40 sets the first correspondence to the activated state, the BCHF network element 40 may also feed back a first response message to the BCAMF network element 20 to indicate that the first correspondence has been set to be activated. status.

It should be noted that the corresponding relationship between the terminal and the operator recorded in the blockchain in the embodiment of the present application may indicate that the terminal successfully opens an account in the operator. In addition, on the one hand, the BCAMF network element 20 or the BCHF network element 40 can indicate whether the operator provides services for the terminal by setting the status of the corresponding relationship between the terminal and the operator. For example, the state of the corresponding relationship between the terminal and the operator may be set to an inactive state or an active state. When the corresponding relationship between the terminal and the operator is set to an inactive state, it means that the operator does not currently provide services for the terminal. Under normal circumstances, if the terminal successfully opens an account with the operator, and the operator does not provide services for the terminal at this time, the corresponding relationship between the terminal and the operator can be set to an inactive state, and once it is determined that the operator To provide a service for the terminal, the corresponding relationship between the terminal and the operator is updated from the inactive state to the active state.

It should be noted that setting the first correspondence to the active state above is a way of expressing that the first operator provides services to the terminal. In addition, when the first correspondence exists in the blockchain, it can also be set in the blockchain. The second transaction information is released in the, to indicate that the first operator is currently providing services to the terminal.

In the embodiment of the application, the second transaction information used to indicate that the terminal 10 is currently provided by the first operator is published in the blockchain, so that it is convenient for other alliance members in the blockchain to determine the current service for the terminal 10. Information of the first operator. So that the subsequent service initiating network element (belonging to the alliance member in the blockchain) queries the first operator serving the terminal 10 in the blockchain and performs routing.

For example, take the terminal 10 as an international logistics fleet, because the logistics fleet travels on some transnational routes for a long time and needs to pass through multiple countries. According to the network coverage of each country, the logistics fleet may choose at least one operator to open an account in each country. Only when the logistics fleet travels to the coverage network of operator A, the operator A will be selected to serve the logistics fleet.

As an optional embodiment, as shown in FIG. 6, before step 507, the method provided in this embodiment of the present application may further include:

Step 509: The BCAMF network element 20 receives the first instruction from the terminal 10. The first indication is used to indicate that the first operator provides services for the terminal.

Correspondingly, step 507 may be specifically implemented in the following manner: the BCAMF network element 20 determines that the first operator currently provides services for the terminal according to the first instruction.

On the one hand, the first indication may be carried in the aforementioned account opening request message. Specifically, the first indication is used to indicate to activate the subscription data of the terminal. That is, when the terminal 10 requests the BCAMF network element 10 to open an account for the terminal 10 in the first operator, it also requests that the first operator provide the terminal with the terminal's subscription data, which means that the terminal is currently served by the first operator. . The advantage of this method is that the network to which the terminal 10 is attached is determined before the terminal 10 attaches. For example, after the security department obtains that the terminal activates the network of the first operator, it can directly subscribe the attachment status of the terminal 10 to the UDM network element of the first operator. After the terminal 10 is attached, the UDM network element notifies the security department.

On the other hand, after the terminal 10 successfully opens an account in the first operator, the first indication may be carried in other messages (for example, a subscription update message or an update service message) and sent to the BCAMF network element 10, so that the BCAMF network element 10 The element 10 determines that the first operator provides services for the terminal 10.

As an optional embodiment, as shown in FIG. 6, after step 508, the method provided in this embodiment of the present application may further include:

Step 510: The BCAMF network element 20 determines that the current first operator does not provide services for the terminal 10.

Step 511: The BCAMF network element publishes the third transaction information in the blockchain. Among them, the third transaction information is used to indicate that the current first operator does not provide services for the terminal.

As a possible implementation manner, step 511 in the embodiment of the present application can be implemented in the following manner: the BCAMF network element sets the first correspondence between the identification of the terminal recorded in the blockchain and the identification of the first operator It is inactive. Or the BCAMF network element 20 determines that the current first operator does not provide services for the terminal 10, and the BCAMF network element 20 publishes transaction information indicating that the previous first operator does not provide services for the terminal 10 in the blockchain.

Specifically, the BCAMF network element directly or through the BCHF network element 40 sets the first corresponding relationship between the identifier of the terminal and the identifier of the first operator recorded in the blockchain to an inactive state. The setting of the first correspondence relationship to the inactive state indicates that the current first operator does not provide services for the terminal 10.

Since the terminal can open accounts with multiple operators, there may be an operator providing services for the terminal at a certain moment. For example, if the BCHF network element 40 determines that the first operator provides services for the terminal, but the first operator is recorded in the blockchain at this time A second correspondence between an identifier and the identifier of the second operator, and the second operator provides services for the terminal 10. Then, after the BCHF network element 40 determines that the first operator provides services for the terminal, it triggers the smart contract to invalidate the second operator's provision of services for the terminal. Exemplarily, the BCHF network element 40 sets the second correspondence relationship to an inactive state. By setting the second correspondence to an inactive state, it means that the second operator currently does not provide services for the terminal 10. Or, the BCAMF network element 20 directly or through the BCHF network element 40 marks the transaction information used to indicate that the second operator provides services for the terminal 10 in the blockchain as invalid.

It should be understood that the second operator provides services for the terminal 10 before the first operator provides services for the terminal 10.

For example, for example, the international logistics fleet has successfully opened accounts in both the first operator and the second operator. At time T1, when the international logistics fleet travels to the second operator’s network, the second operator will provide services for the terminal 10 . When the international logistics fleet travels to the network of the first operator at T2, the first operator provides services for the terminal 10. At this time, the BCAMF network element 20 or the BCHF network element 40 sets the first corresponding relationship in the blockchain In the activated state, the blockchain smart contract is triggered, and the second corresponding relationship is set to the inactive state.

As an optional embodiment, as shown in FIG. 6, after step 502, the method provided in this embodiment of the present application may further include:

Step 512: The BCAMF network element 20 publishes fourth transaction information in the blockchain, where the fourth transaction information includes verification information. The verification information is used to indicate that the terminal meets the account opening requirements.

Specifically, the content of the fourth transaction information includes content that the terminal meets all or part of the account opening requirements. For example, if items A and B are required to open an account, and if the terminal meets items A and B, the fourth transaction information includes items A and B required for both terminals to open an account.

If the BCAMF network element 20 determines that the terminal 10 meets the account opening requirements, that is, after the terminal 10 is successfully verified in the blockchain, the BCAMF network element 20 directly or through the BCHF network element 40 publishes the verification information in the form of a legality statement as a transaction to the district Block chain. If this verification process does not include the off-chain mode, the publishing process is optional. Otherwise, this process is a necessary process for terminal identity verification. Taking into account the personal privacy protection requirements of the terminal, the issued legality statement needs to meet the requirements of local laws and regulations. The related forms include: 1) The conclusion of the relevant legal status of the terminal is given in the legality statement, and no specific details are given. The legal status includes but is not limited to: the terminal's GPBC ID is legal, and the terminal's application for a specific service is legal. 2) The encryption key is derived from the relevant secret information of the terminal to protect the confidentiality of the legality statement. In the future, other operators or third-party service providers who inquire about the statement will obtain the terminal's derived key when authorized by the terminal. Access the statement; 3) When the blockchain is in the consortium chain mode, the access control capabilities can be configured on the consortium chain.

Step 513: The BCAMF network element publishes seventh transaction information in the blockchain. The seventh transaction information includes any one or more of the following information: the mapping relationship between the SUPI and the terminal identifier, and the GPSI and the terminal identifier The mapping relationship.

In this embodiment of the application, the mapping relationship between SUPI and the terminal's identity, and the mapping relationship between GPSI and the terminal's identity are recorded in the blockchain, so that subsequent service initiating network elements can query and serve the terminal in the blockchain Operator and perform routing.

As a possible implementation, the BCAMF network element 20 in the embodiment of the application publishes transaction information in the blockchain, which can be implemented in the following manner: the BCAMF network element 20 sends transaction information to the BCHF network element, and the BCHF network element 40 is used for Publish the transaction information in the blockchain, and the transaction information includes: any one or more of the first transaction information, the second transaction information, the third transaction information, the fourth transaction information, and the seventh transaction information .

As shown in FIG. 7, FIG. 7 shows a method for providing services for a terminal by using a blockchain according to an embodiment of the present application, including:

Step 701: The terminal 10 sends an account cancellation request message to the BCAMF network element 20, so that the BCAMF network element 20 receives the account cancellation request message from the terminal 10.

Wherein, the account cancellation request message carries the identification of the terminal 10, and the account cancellation request message is used to request cancellation of the terminal's service in the first operator.

It should be noted that before step 701, the terminal 10 has successfully opened an account in the first operator. For the specific process of the terminal 10 opening an account in the first operator, reference may be made to the embodiment shown in FIG. 5 or FIG. 6, which will not be repeated here. Of course, the terminal 10 may also use methods other than the process shown in FIG. 5 or FIG. 6 to open an account in the first operator.

For the interaction between the terminal 10 and the BCAMF network element 20 in step 701, reference may be made to the description in step 501, which will not be repeated here.

Step 702: The BCAMF network element 20 determines that the terminal 10 meets the account cancellation requirement according to the identification of the terminal 10.

As a possible implementation manner, step 702 in the embodiment of the present application can be implemented in the following manner: the BCAMF network element 20 verifies in the blockchain that the terminal 10 meets the account cancellation requirement according to the identification of the terminal 10.

For example, if the identification of the terminal 10 provided by the terminal 10 in the account cancellation request message is consistent with the identification of the terminal 10 provided when the terminal 10 opens an account, it is determined that the terminal 10 meets the account cancellation requirement.

Step 703: The BCAMF network element 20 sends a second message to the user data management network element 30 or the authentication certificate repository and processing function (ARPF) network element, so that the user data management network element 30 receives the BCAMF The second message of the network element 20. The second message includes the identification of the terminal, and the second message is used to instruct to delete the subscription data of the terminal.

It should be understood that in the process of successfully opening an account for the terminal in the first operator, the user data management network element 30 stores the subscription data of the terminal. For the process by which the user data management network element 30 obtains the subscription data of the terminal, reference may be made to the foregoing step 504, which will not be repeated here.

Step 704: The user data management network element 30 deletes the subscription data of the terminal according to the identification of the terminal.

As an optional embodiment, as shown in FIG. 7, the method provided in this embodiment of the present application may further include after step 702:

Step 705: The BCAMF network element 20 releases the SUPI and/or GPSI allocated to the terminal 10, etc.

Optionally, when the BCAMF network element 20 or the BCHF network element 40 determines that the terminal 10 meets the account cancellation requirements, the BCAMF network element 20 directly or indirectly triggers the account opening smart contract through the BCHF million account 40 to release the SUPI or GPSI allocated for the terminal, SUPI It can be IMSI, GPSI can be MSISD N.

In addition, as an optional embodiment, as shown in FIG. 7, after step 701, the method provided in this embodiment of the present application may further include:

Step 706: The BCAMF network element 20 sends an account cancellation success message to the terminal 10, and the account cancellation success message includes the identification of the terminal 10. The account cancellation success message is used to indicate that the terminal 10 has been successfully cancelled in the first operator.

As an optional implementation manner, as shown in FIG. 7, the method provided in this embodiment of the present application may further include after step 701:

Step 707: The BCAMF network element 20 publishes fifth transaction information in the blockchain, where the fifth transaction information is used to indicate that the terminal 10 is no longer a contracted terminal of the first operator. Or the fifth transaction information is used to indicate that the terminal 10 has been canceled in the first operator. The fifth transaction information includes an account cancellation transaction, which is used to indicate that the terminal has cancelled the terminal's service in the first operator.

In a possible implementation manner, the BCAMF network element 20 publishes the fifth transaction information in the blockchain, including: the BCAMF network element 20 sends the fifth transaction information to the blockchain processing function BCHF network element 40, and the BCHF network element 40 Used to publish transaction information fifth in the blockchain.

Specifically, if there is a first correspondence between the terminal 10 and the identity of the first operator in the blockchain, the BCAMF network element 20 sets the first correspondence to the account cancellation state directly or through the BCHF network element.

It should be noted that if in the process of canceling the account of the terminal 10, if the terminal 10 pre-stores the excess call charges in the first operator, then the smart contract execution process is accompanied by the process of the first operator returning the call charges to the terminal 10. Then, the BCAMF network element 20 directly or through the BCHF network element records the call charge returned for the terminal 10 in the blockchain.

It should be noted that the embodiment shown in FIG. 7 may be used as a separate embodiment. Of course, the embodiment shown in FIG. 7 may also be implemented in combination with the embodiment shown in FIG. 5 or FIG. 6.

As shown in FIG. 8, FIG. 8 shows a method for providing services for a terminal by using a blockchain according to an embodiment of the present application, including:

Step 801: The terminal 10 sends an update service request (update service request) message to the BCAMF network element 20, so that the BCAMF network element 20 receives the update service request message from the terminal 10. Wherein, the update service request message carries the identification of the terminal. The update service request message is used to request to update the service of the terminal in the first operator.

Exemplarily, the service update request message may also carry a list of services that the terminal wishes to update. For example, any one or more of the APN list or the network slice list that the terminal wants to update. The update method can be to add or delete a certain service, or to update a certain service, such as increasing the traffic limit. For example, if the terminal 10 has not purchased the network slice A before, it may request to purchase the network slice A from the first operator through the update service request message. For another example, if the terminal 10 has previously purchased the CRBT service or the caller ID service of the first operator, the terminal 10 may request the cancellation of the CRBT service or the caller ID service through step 801.

Step 802: The BCAMF network element 20 directly or through the BCHF network element verifies whether the terminal 10 meets the requirements of updating the service of the terminal 10 according to the identification of the terminal 10.

Exemplarily, the BCAMF network element 20 directly or through the BCHF network element verifies whether the terminal 10 meets the requirements of updating the service of the terminal 10 in the blockchain according to the identification of the terminal 10.

If the BCAMF network element 20 determines that the terminal 10 meets the requirements for updating the service of the terminal 10, step 802 is executed. Specifically, if the BCAMF network element 20 determines that the identity of the terminal 10 is consistent with the identity of the terminal 10 provided when the terminal 10 opens an account, it is determined that the terminal 10 meets the requirements for updating the service of the terminal 10. Or the BCAMF network element 20 determines that the first operator has the service requested by the terminal 10 to update, or the service requested by the terminal to update is legal, and then determines that the terminal meets the requirements for updating the service of the terminal 10.

Step 803: The BCAMF network element 20 sends a third message to the user data management network element 30/ARPF, where the third message includes the identifier of the terminal 10 and third information. The third information is used to determine the updated contract data.

It should be understood that in the process of successfully opening an account for the terminal 10 in the first operator, the user data management network element 30 stores the contract data of the terminal. For the process by which the user data management network element 30 obtains the subscription data of the terminal, reference may be made to the foregoing step 504, which will not be repeated here.

Exemplarily, the third information may be updated contract data. Or the third information may be content that has changed in the contract data. For example, if the subscription data includes network slice A, and the terminal 10 requests cancellation of network slice A through step 801, the third information may be cancellation of network slice A in the subscription data.

Step 804: The user data management network element 30/ARPF updates the subscription data of the terminal.

In an optional embodiment, as shown in FIG. 8, after step 802, the method provided in this embodiment of the present application may further include:

Step 805: The BCAMF network element 20 updates the APN list or the network slice list of the terminal 10.

In addition, before step 805, the method provided in the embodiment of the present application further includes: the BCAMF network element 20 determines that the terminal 10 meets the update service requirements according to the identification of the terminal 10, and can update the account opening contract between the terminal 10 and the first operator. In the process of updating the account opening contract between the terminal 10 and the first operator, the transaction process of the terminal 10 using blockchain currency to purchase the business of the first operator is involved, that is, the process of currency transfer from the terminal 10 to the first operator. Similarly, as transaction information, the BCAMF network element 20 directly writes it into the blockchain or the BCAMF network element 20 through the BCHF network element 40.

Step 806: The BCAMF network element 20 sends a message indicating the success of the service update to the terminal 10, and the message indicating the success of the service update includes the identifier of the terminal 10. The message indicating that the service update is successful is used to indicate that the service of the terminal 10 in the first operator has been updated.

As an optional embodiment, as shown in FIG. 8, after step 801, the method provided in this embodiment of the present application may further include:

Step 807: The BCAMF network element 20 publishes sixth transaction information in the blockchain, where the sixth transaction information includes an update service transaction. Wherein, the updated service transaction includes the updated service of the terminal in the first operator.

Exemplarily, the updated service transaction specifically includes the service added by the terminal 10 in the first operator, the deleted service or the updated service content.

In a possible implementation manner, step 807 can be implemented in the following manner: the BCAMF network element 20 sends the sixth transaction information to the BCHF network element 40, and the BCHF network element is used to publish the sixth transaction information in the blockchain.

It should be noted that the embodiment shown in FIG. 8 can be used as a separate embodiment. Of course, the embodiment shown in FIG. 8 can also be implemented in combination with the embodiment shown in FIG. 5 or FIG. 6 or FIG. 7.

Although the current terminal can use a pluggable SIM, an embedded SIM (Embedded SIM, eSIM), or a soft (soft) SIM to obtain services with operators. The eSIM is to physically embed the SIM card on the terminal. The operator can remotely write the terminal's contract data to the terminal. The terminal can store the contract data of multiple operators, and the user decides which operator's contract data to activate. Soft SIM: An intermediary (usually a mobile phone manufacturer) signs contracts with multiple operators in advance. After the terminal user selects the service operator, the intermediary writes the contract data of the selected operator into the terminal through software.

However, regardless of the pluggable SIM, eSIM or soft SIM, because the prefixes of IMSI and MSISDN are bound to the operator, after the terminal changes the operator, the IMSI and MSISDN allocated to the terminal will also be changed accordingly. , The terminal needs to notify all contacts to change the saved logo for MT business. At the same time, since the IMSI and MSISDN assigned to the terminal are changed, if the data of the terminal is to be integrated, multiple identities need to be mapped to each other to be associated with the same terminal. This method is not conducive to the terminal-centric data integration in the big data era. shared. Based on this, as shown in FIG. 9, FIG. 9 shows a method for providing services for a terminal by using a blockchain according to an embodiment of the present application. The method is suitable for the terminal 10 that has successfully opened an account in the first operator, and In a scenario where the first operator provides a service for the terminal 10, the method includes: the service initiating network element obtains the first information from the blockchain according to the identifier of the terminal, step 904 and step 905. Specifically, the service initiating network element obtains the first information from the blockchain according to the terminal's identifier, which can be specifically implemented through steps 901 to 903.

Step 901: The service initiating network element sends a first request message to the BCHF network element 40, so that the BCHF network element 40 receives the first request message from the service initiating network element. The first request message is used to request first information, and the first information is used to determine one or more network elements that provide services for the terminal 10.

For example, the service initiating network element may be a third-party server that initiates the service, or the interrogating call session control function (I-CSCF) of the service initiating service terminal.

Step 902: The BCHF network element 40 obtains the first information from the blockchain according to the identifier of the terminal 10.

Step 903: The BCHF network element 40 sends the first information to the service initiating network element, so that the service initiating network element receives the first information from the BCHF network element 40.

Step 904: The service initiating network element determines one or more network elements that provide services for the terminal 10 according to the first information.

Step 905: The service initiating network element interacts with any one of the one or more network elements to provide a service for the terminal.

Taking an IMS call as an example, after the service initiating network element obtains the ID of the operator of the serving terminal, the service initiating network element obtains the I-CSCF information of the terminal 10 through the ID of the operator, and the service initiating network element uses the proxy call session control function (proxy The call session control function (P-CSCF), the serving call session control function (S-CSCF) sends the session request to the I-CSCF/S-CSCF of the called terminal 10, and the subsequent session process is performed.

The embodiment of the application provides a method for using blockchain to provide services for terminals. In the case that the terminal changes its operator and SUPI and GUPI change, since the identity of the terminal remains the same, the service initiating network element can pass through the terminal , Obtain the first information from the blockchain to determine one or more network elements that provide services for the terminal. Furthermore, the service initiating network element interacts with one or more network elements to provide services for the terminal, which can prevent the MT service from being affected when the terminal changes its operator.

Because the content of the first information is different, the process of determining one or more network elements by the service initiating network element based on the first information is different, so the following are introduced separately:

Example 1). The first information includes information of an operator currently providing services for the terminal 10.

Correspondingly, step 902 in the embodiment of the present application can be implemented in the following manner: the service initiating network element determines the information of one or more network elements according to the information of the operator. For example, the information of the operator may be an operator ID, an address or name of the operator.

Exemplarily, the local configuration of the service initiating network element is provided with pre-configuration information, and the pre-configuration information is used to reflect one or more network elements that each of the one or more operators provides services for the terminal at a designated location In this way, it is convenient for the service initiating network element to determine the information of one or more network elements that provide services for the terminal under the operator according to the information of the operator from the pre-configured information.

Exemplarily, the service initiating network element can send the query information that can be constructed by the operator to the Domain Name System (DNS), or the network element responsible for the network function registration and discovery function (for example, the network function storage function network element) (network function repository function, NRF)). Use DNS or NRF to query the information of one or more network elements that provide services for the terminal under the operator. It can be understood that in future communications, the network element responsible for the network function registration and discovery function may still be an NRF network element or have other names, which is not limited by this application.

Exemplarily, the service initiating network element may also determine the UDM network element/UDR network element of the serving terminal according to the operator information, and obtain the network element of the serving terminal by querying the UDM network element/UDR network element, such as I-CSCF or S-CSCF , Or AMF network element, SMF network element, etc.

It should be understood that, in the case of Example 1, the information of the operator currently providing services for the terminal 10 is recorded in the blockchain. Specifically, the information of the operator currently providing services for the terminal 10 may be implemented by the BCAMF network element 20 through the above step 508.

In Example 1, the first request message carries the first indication. The first indication is used to request information of an operator that provides services for the terminal, and the BCHF network element 40 determines that the first information includes information of an operator that provides services for the terminal.

Example 2). The first information includes information about one or more network elements that provide services for the terminal 10. That is, in Example 2, the BCHF network element 40 directly provides information about one or more network elements that provide services for the terminal 10 to the service initiating network element. For example, the information of one or more network elements may be the ID or name of the network element.

It should be understood that, in the case of Example 2, the information of one or more network elements currently providing services for the terminal 10 is recorded in the blockchain. Specifically, the information of one or more network elements currently providing services for the terminal 10 may be implemented by the following step 1103.

In Example 2, as a possible implementation, the first request message carries a first indication, and the first indication is used by the BCHF network element 40 to determine one or more service initiation network elements requested by the service initiating network element to provide services for the terminal 10 Information about the network element.

Exemplarily, the first indication is used to indicate any one or more of the following information: the type of service that the service initiating network element needs to communicate with the terminal, or the type of network element expected by the service initiating network element, or the service initiating network element The name of the required network element.

For example, the first indication may be a specific message name, such as a request message for querying the I-CSCF/S-CSCF address of the service terminal 10; it may also indicate the cell name in the cell, such as indicating the S-CSCF, or indicating the need For the performed service, the BCHF network element 40 returns the network element required for the service, such as instructing to make a call, and the BCHF network element 40 returns the address of the S-CSCF. The embodiments of this application do not make limitations.

As shown in FIG. 10, FIG. 10 shows a method for providing services for a terminal by using a blockchain according to an embodiment of the present application, and the method includes:

Step 1001: The first network element sends a first message to the user plane data management network element 40, so that the user plane data management network element 40 receives the first message from the first network element. Meta is registered as a network element that provides services to the terminal.

Wherein, the first message includes the identification of the terminal. The first network element and the user plane data management network element 40 belong to the first operator.

For example, the first network element is any one or more of: a mobility management network element, a session management network element, or an I-CSCF network element, or, a serving call session control function S-CSCF network element.

Exemplarily, the first message carries the identifier of the terminal 10, the identifier of the first network element, and a second indication, and the second indication is used to indicate that the first network element is registered as a network element that provides services to the terminal 10.

Step 1002. The user plane data management network element 40 sends a response message indicating successful registration to the first network element, so that the first network element receives a response message from the user plane data management network element 40 indicating successful registration.

The response message indicating that the registration is successful is used to indicate that the registration of the first network element at the user plane data management network element 40 is successful. For example, the response message indicating successful registration carries the identifier of the first network element and the successful registration indication.

Step 1003: The first network element publishes first transaction information in the blockchain. The first transaction information includes: information about the first network element that provides services for the terminal 10.

Of course, the content of the first transaction information in step 1003 in the embodiment of the present application can also be replaced with the following content: information of the first operator of the first network element that provides services for the terminal 10. That is, during the registration process of the first network element with the user plane data management network element 40, the information of the first operator that provides services for the terminal is written into the blockchain.

Exemplarily, the first transaction information includes: a mapping relationship between the terminal 10 and the information of the first network element, and the mapping relationship is used to indicate that the first network element provides the terminal 10 with a service. For example, the information of the first network element may be the address or name of the first network element.

In a possible implementation manner, step 1003 in the embodiment of the present application can be implemented in the following manner: the first network element sends the first transaction information to the BCHF network element 40, and the BCHF network element 40 is used to publish the first transaction information In the blockchain.

As yet another possible implementation manner, step 1003 in the embodiment of the present application can be implemented in the following manner: the first network element directly publishes the first transaction information in the blockchain.

Taking the first network element as a mobility management network element or an I-CSCF network element or an S-CSCF network element as an example, if the mobility management network element receives a registration request message from the terminal 10, the mobility management network element executes the steps in the registration process Other steps and step 1001. That is, during the registration process of the terminal 10 on the network of the first operator, the mobility management network element directly or through the BCHF network element 40 publishes the mapping relationship between the identification of the mobility management network element and the terminal in the blockchain, or The mapping relationship between the identity of the I-CSCF network element and the terminal, or the mapping relationship between the identity of the S-CSCF network element and the terminal.

Taking the first network element as the session management network element as an example, if the session management network element receives a packet data unit (PDU) session establishment request from the terminal 10, the session management network element executes other procedures in the session establishment process. Steps and step 1001. That is, when the terminal 10 performs the session establishment process with the session management network element of the first operator, the session management network element directly or through the BCHF network element 40 publishes the identity of the session management network element and the terminal in the blockchain. The mapping relationship.

It should be noted that after the first network element is registered as a network element that provides services to the terminal 10, the first network element may also cancel the provision of services to the terminal 10. Therefore, in an alternative embodiment, as shown in FIG. 10 After step 1003, the method provided by the embodiment of the present application may further include:

Step 1004: The first network element sends a second message to the user plane data management network element 40, so that the user plane data management network element 40 receives the second message from the first network element. The second message is used to indicate that the first network element is cancelled as a network element that provides services to the terminal.

Exemplarily, the second message carries the identifier of the terminal, the identifier of the first network element, and a third indication, where the third indication is used to instruct to cancel the first network element as a network element that provides services to the terminal.

Step 1005: The user plane data management network element 40 sends a response message indicating successful cancellation to the first network element, so that the first network element receives a response message from the user plane data management network element 40 indicating successful cancellation. The response message indicating successful cancellation is used to indicate that the first network element has been cancelled as a network element that provides services to the terminal 10.

Exemplarily, the fourth message carries a fourth indication and an identifier of the first network element, and the fourth indication is used to indicate that the first network element has been cancelled as a network element that provides services to the terminal 10.

Step 1006: The first network element publishes second transaction information in the blockchain. The second transaction information includes information marked as invalid for the first network element that provides services for the terminal.

In the embodiment of the present application, when the mapping relationship between the identifier of the terminal 10 and the first network element is marked as invalid, it means that the first network element does not provide services for the terminal 10. Of course, when the first network element publishes the mapping relationship between the terminal 10 and the information of the first network element in the blockchain, if the first network element provides services for the terminal 10 at this time, the terminal 10 and the first network element The mapping relationship between meta information is marked as valid.

Specifically, step 1006 can also be replaced in the following manner. The first network element marks the mapping relationship between the terminal 10 and the information of the first network element as invalid in the blockchain. Or step 1106 can also be replaced in the following manner. The first network element sends a second notification message to the BCHF network element 40, and the second notification message is used to notify the BCHF network element 40 to connect the terminal 10 to the first network element in the blockchain. The mapping relationship between the information is marked as invalid.

In a possible implementation manner, step 1006 in the embodiment of the present application can be implemented in the following manner: the first network element sends the second transaction information to the BCHF network element 40, and the BCHF network element 40 is used to publish the second transaction information In the blockchain.

As another possible implementation manner, step 1006 in the embodiment of the present application can be implemented in the following manner: the first network element directly publishes the second transaction information in the blockchain.

In the embodiment shown in FIG. 10, the mobility management network element/I-CSCF network element/S-CSCF network element or the session management network element can be registered in the blockchain as a node providing services for the terminal 10, when there is a third-party network element (For example, a service initiating network element) When it is necessary to query a network element that provides services for the terminal 10, it can be searched based on the terminal's identity in the blockchain. For example, in the case of Vo5G (Voice over 5G), as an implementation manner, the service initiating network element can search for the I-CSCF network element of the service terminal 10 through the blockchain.

As shown in FIG. 11, FIG. 11 shows a method for processing blockchain records provided by an embodiment of the present application, and the method includes:

Step 1101 is the same as step 1001, and will not be repeated here.

Step 1102: The user data management network element 30 publishes the first transaction information in the blockchain. Among them, the first transaction information is used to indicate that the first operator currently provides services for the terminal 10.

Exemplarily, the first transaction information may include a first correspondence between the first operator and the terminal 10, and the first correspondence is in an activated state.

As a possible implementation manner, step 1102 in the embodiment of the present application can be implemented in the following manner: the user data management network element 30 sends the first transaction information to the BCHF network element 40, so that the BCHF network element 40 can be in the blockchain Publish the first transaction information.

As another possible implementation manner, step 1102 in the embodiment of the present application can be implemented in the following manner: the user data management network element 30 directly publishes the first transaction information in the blockchain.

Optionally, the user data management network element 30 or the BCHF network element 40 may also record the date on which the first operator provided service to the terminal 10 in the past. That is, when the user data management network element 30 or the BCHF network element 40 sets the first corresponding relationship to the activated state, the activation date is also recorded.

It should be noted that if the user data management network element 30 determines that the first operator provides services for the terminal 10, if the user data management network element 30 determines that there is a second operator between the terminal 10 and the second operator in the blockchain. If the second correspondence is in the active state, the user data management network element 30 may notify the BCHF network element 40 to set the second correspondence between the terminal 10 and the second operator as invalid.

In an optional embodiment, as shown in FIG. 11, the method provided in this embodiment of the present application may further include after step 1101:

Step 1103 and step 1104 are the same as step 1002 and step 1004, and will not be repeated here.

In an optional embodiment, as shown in FIG. 11, the method provided in this embodiment of the present application may further include after step 1102:

Step 1105 is the same as step 1005, and will not be repeated here.

Step 1106: The user data management network element 30 publishes second transaction information in the blockchain, where the second transaction information includes any one or more of the following: the information of the first network element that is marked as invalid for the first network element that provides the service for the terminal 10 is marked; Or, set the current record of the service provided by the first operator for the terminal to an inactive state.

Specifically, the user data management network element 30 may directly or through the BCHF network element 40 set the mapping relationship between the terminal 10 and the information of the first network element to be invalid. Or the user data management network element 30 may directly or through the BCHF network element 40 set the first correspondence between the terminal 10 and the first operator to an inactive state.

As a possible implementation manner, step 1106 in the embodiment of the present application can be implemented in the following manner: the user data management network element 30 sends the second transaction information to the BCHF network element 40, and the BCHF network element 40 is used to transfer the The second transaction information is published in the blockchain.

As another possible implementation manner, step 1106 in the embodiment of the present application can be implemented in the following manner: the user data management network element 30 directly publishes the second transaction information in the blockchain.

It should be noted that the difference between FIG. 10 and FIG. 11 is that in FIG. 10, the first network element publishes or cancels the mapping relationship between the terminal 10 and the first network element in the blockchain. In FIG. 11, the user The data management network element 30 publishes or cancels the mapping relationship between the terminal 10 and the first network element in the blockchain.

The foregoing mainly introduces the solution of the embodiment of the present application from the perspective of interaction between various network elements. It can be understood that each network element, such as a BACMF network element, a user data management network element, a first network element, etc., includes hardware structures and/or software modules corresponding to each function in order to realize the above functions. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiment of this application can divide functional units according to the above-mentioned method example terminal, BACMF network element, user data management network element, and first network element. For example, each functional unit can be divided corresponding to each function, or two or two The above functions are integrated in a processing unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

The method of the embodiment of the present application has been described above with reference to Figs. 5 to 11, and the device provided by the embodiment of the present application for performing the foregoing method using the blockchain to provide services for the terminal is described below. Those skilled in the art can understand that the method and the device can be combined and quoted with each other. The device that uses the blockchain to provide services for the terminal provided in the embodiment of the present application can execute the above-mentioned method of sending and using the blockchain to provide services for the terminal. Steps performed by the BACMF network element, the user data management network element, and the first network element.

The following is an example of dividing each function module corresponding to each function:

In the case of using an integrated unit, FIG. 12 shows a communication device involved in the foregoing embodiment, and the communication device may include: a communication unit 102 and a processing unit 101.

Example 2-1, the communication device is a terminal or a chip applied to the terminal. In this case, the communication unit 102 is configured to support the communication device to execute the step sent by the terminal in step 501 in the above-mentioned embodiment.

In a possible embodiment, the communication unit 102 is further configured to support the communication device to execute the steps received by the terminal in step 504 and step 505 in the foregoing embodiment.

Example 2-2, the communication device is a BCAMF network element 20, or a chip applied in the BCAMF network element 20. In this case, the communication unit 102 is used to support the communication device to perform the steps received by the BCAMF network element 20 in step 501 in the above embodiment. The processing unit 101 is configured to support the communication device to execute step 502 executed by the BCAMF network element 20 in the foregoing embodiment. The communication unit is also used to support the communication device to execute the steps sent by the BCAMF network element 20 in step 503 in the foregoing embodiment.

In a possible embodiment, the communication unit 102 is configured to support the communication device to execute steps 504 and 505 in the above-mentioned embodiment, which are sent by the BCAMF network element 20 and step 509. The processing unit 101 is further configured to support the communication device to execute step 506, step 507, step 508, step 510, step 511, step 512, and step 513 performed by the BCAMF network element 20 in the foregoing embodiment.

Example 2-3, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication unit 102 is configured to support the communication device to perform the action received by the user data management network element in step 503 of the foregoing embodiment. The processing unit 101 is configured to support the communication device to execute the steps of storing the contract data of the terminal 10 executed by the user data management network element in the above-mentioned embodiment.

Example 2-4, the communication device is a terminal or a chip applied in the terminal. In this case, the communication unit 102 is used to support the communication device to execute the step sent by the terminal in step 701 in the above-mentioned embodiment.

In a possible embodiment, the communication unit 102 is further configured to support the communication device to perform the steps received by the terminal in step 706 in the foregoing embodiment.

Example 2-5, the communication device is a BCAMF network element 20, or a chip applied in the BCAMF network element 20. In this case, the communication unit 102 is used to support the communication device to perform the steps received by the BCAMF network element 20 in step 701 in the above-mentioned embodiment. The processing unit 101 is configured to support the communication device to execute step 702 executed by the BCAMF network element 20 in the foregoing embodiment. The communication unit is also used to support the communication device to perform the steps sent by the BCAMF network element 20 in step 703 in the foregoing embodiment.

In a possible embodiment, the communication unit 102 is configured to support the communication device to execute the sending action performed by the BCAMF network element 20 in step 706 in the foregoing embodiment. The processing unit 101 is further configured to support the communication device to execute steps 705 and 707 performed by the BCAMF network element 20 in the foregoing embodiment.

Example 2-6, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication unit 102 is configured to support the communication device to perform the action received by the user data management network element in step 703 of the foregoing embodiment. The processing unit 101 is configured to support the communication device to execute step 704 executed by the user data management network element in the foregoing embodiment.

Example 2-7, the communication device is a terminal or a chip applied to the terminal. In this case, the communication unit 102 is used to support the communication device to execute the step sent by the terminal in step 801 in the above-mentioned embodiment.

In a possible embodiment, the communication unit 102 is further configured to support the communication device to perform the steps received by the terminal in step 806 in the foregoing embodiment.

Example 2-8, the communication device is a BCAMF network element 20, or a chip applied in the BCAMF network element 20. In this case, the communication unit 102 is used to support the communication device to perform the steps received by the BCAMF network element 20 in step 801 in the above-mentioned embodiment. The processing unit 101 is configured to support the communication device to execute step 802 executed by the BCAMF network element 20 in the foregoing embodiment. The communication unit is also used to support the communication device to execute the steps sent by the BCAMF network element 20 in step 803 in the foregoing embodiment.

In a possible embodiment, the communication unit 102 is configured to support the communication device to execute the sending action performed by the BCAMF network element 20 in step 806 in the foregoing embodiment. The processing unit 101 is further configured to support the communication device to execute steps 805 and 807 performed by the BCAMF network element 20 in the foregoing embodiment.

Example 2-9, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication unit 102 is configured to support the communication device to perform the action received by the user data management network element in step 803 of the foregoing embodiment. The processing unit 101 is configured to support the communication device to execute step 804 executed by the user data management network element in the foregoing embodiment.

Example 2-10, the communication device is a service initiating network element, or a chip applied to the service initiating network element. In this case, the communication unit 102 is configured to support the communication device to perform the action sent by the service initiating network element in step 901 of the foregoing embodiment. The processing unit 101 is configured to support the communication device to execute steps 904 and 905 performed by the service initiating network element in the foregoing embodiment.

Example 2-11, the communication device is a BCHF network element 40, or a chip applied in the BCHF network element 40. In this case, the communication unit 102 is used to support the communication device to perform the action received by the BCHF network element 40 in step 901 and the action sent by the BCHF network element 40 in step 903 in the above embodiment. The processing unit 101 is configured to support the communication device to execute step 902 executed by the BCHF network element 40 in the foregoing embodiment.

Example 2-12, the communication device is the first network element, or is a chip applied to the first network element. In this case, the communication unit 102 is configured to support the communication device to perform the action sent by the first network element in step 1001 and the action received by the first network element in step 1002 in the above embodiment. The processing unit 101 is configured to support the communication device to execute step 1003 executed by the first network element in the foregoing embodiment.

In an optional embodiment, the communication unit 102 is configured to support the communication device to perform the sending action performed by the first network element in step 1004 and the receiving action performed by the first network element in step 1005 in the foregoing embodiment. The processing unit 101 is configured to support the communication device to execute step 1006 executed by the first network element in the foregoing embodiment.

Example 2-13, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication unit 102 is configured to support the communication device to perform the actions received by the user data management network element in step 1001 of the foregoing embodiment and the actions sent by the user data management network element in step 1002.

In an optional embodiment, the communication unit 102 is configured to support the communication device to perform the receiving action performed by the user data management network element in step 1004 and the sending action performed by the user data management network element in step 1005 in the foregoing embodiment. .

Example 2-14, the communication device is the first network element, or is a chip applied to the first network element. In this case, the communication unit 102 is configured to support the communication device to perform the action sent by the first network element in step 1101 of the foregoing embodiment.

In an optional embodiment, the communication unit 102 is configured to support the communication device to perform the sending action performed by the first network element in step 1104 and the receiving action performed by the first network element in step 1105 in the foregoing embodiment.

Example 2-15, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication unit 102 is configured to support the communication device to perform the action received by the user data management network element in step 1101 of the foregoing embodiment. The processing unit 101 is configured to support the communication device to execute step 1102 executed by the user data management network element in the foregoing embodiment.

In an optional embodiment, the communication unit 102 is configured to support the communication device to perform the receiving action performed by the user data management network element in step 1104 and the sending action performed by the user data management network element in step 1105 in the foregoing embodiment. . The processing unit 101 is configured to support the communication device to execute step 1106 executed by the user data management network element in the foregoing embodiment.

In the case of using an integrated unit, FIG. 13 shows a schematic diagram of a possible logical structure of the communication device involved in the foregoing embodiment. The communication device includes: a processing module 112 and a communication module 113. The processing module 112 is used to control and manage the actions of the communication device. For example, the processing module 112 is used to perform information/data processing steps on the communication device. The communication module 113 is used to support the communication device to send or receive information/data.

In a possible embodiment, the communication device may further include a storage module 111 for storing program codes and data that can be used by the communication device.

Example 3-1, the communication device is a terminal or a chip applied to the terminal. In this case, the communication module 113 is used to support the communication device to execute the steps sent by the terminal in step 501 in the foregoing embodiment.

In a possible embodiment, the communication module 113 is further configured to support the communication device to execute the steps received by the terminal in step 504 and step 505 in the foregoing embodiment.

Example 3-2, the communication device is a BCAMF network element 20, or a chip applied in the BCAMF network element 20. In this case, the communication module 113 is used to support the communication device to perform the steps received by the BCAMF network element 20 in step 501 in the foregoing embodiment. The processing module 112 is configured to support the communication device to execute step 502 executed by the BCAMF network element 20 in the foregoing embodiment. The communication unit is also used to support the communication device to execute the steps sent by the BCAMF network element 20 in step 503 in the foregoing embodiment.

In a possible embodiment, the communication module 113 is configured to support the communication device to execute the steps 504 and 505 in the above-mentioned embodiment that are sent by the BCAMF network element 20 and step 509. The processing module 112 is also used to support the communication device to execute step 506, step 507, step 508, step 510, step 511, step 512, and step 513 performed by the BCAMF network element 20 in the foregoing embodiment.

Example 3-3, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication module 113 is used to support the communication device to perform the action received by the user data management network element in step 503 of the foregoing embodiment. The processing module 112 is used to support the communication device to execute the steps of storing the contract data of the terminal 10 executed by the user data management network element in the above-mentioned embodiment.

Example 3-4, the communication device is a terminal or a chip applied in the terminal. In this case, the communication module 113 is used to support the communication device to execute the steps sent by the terminal in step 701 in the above-mentioned embodiment.

In a possible embodiment, the communication module 113 is also used to support the communication device to execute the steps received by the terminal in step 706 in the foregoing embodiment.

Example 3-5, the communication device is a BCAMF network element 20, or a chip applied in the BCAMF network element 20. In this case, the communication module 113 is used to support the communication device to execute the steps received by the BCAMF network element 20 in step 701 in the foregoing embodiment. The processing module 112 is configured to support the communication device to execute step 702 executed by the BCAMF network element 20 in the foregoing embodiment. The communication unit is also used to support the communication device to perform the steps sent by the BCAMF network element 20 in step 703 in the foregoing embodiment.

In a possible embodiment, the communication module 113 is configured to support the communication device to execute the sending action performed by the BCAMF network element 20 in step 706 in the foregoing embodiment. The processing module 112 is also used to support the communication device to execute steps 705 and 707 performed by the BCAMF network element 20 in the foregoing embodiment.

Example 3-6, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication module 113 is used to support the communication device to perform the action received by the user data management network element in step 703 of the foregoing embodiment. The processing module 112 is configured to support the communication device to execute step 704 executed by the user data management network element in the foregoing embodiment.

Example 3-7, the communication device is a terminal or a chip applied to the terminal. In this case, the communication module 113 is used to support the communication device to execute the step sent by the terminal in step 801 in the above-mentioned embodiment.

In a possible embodiment, the communication module 113 is further configured to support the communication device to perform the steps received by the terminal in step 806 in the foregoing embodiment.

In Example 3-8, the communication device is a BCAMF network element 20, or a chip applied in the BCAMF network element 20. In this case, the communication module 113 is used to support the communication device to perform the steps received by the BCAMF network element 20 in step 801 in the foregoing embodiment. The processing module 112 is configured to support the communication device to execute step 802 executed by the BCAMF network element 20 in the foregoing embodiment. The communication unit is also used to support the communication device to execute the steps sent by the BCAMF network element 20 in step 803 in the foregoing embodiment.

In a possible embodiment, the communication module 113 is configured to support the communication device to execute the sending action performed by the BCAMF network element 20 in step 806 in the foregoing embodiment. The processing module 112 is also used to support the communication device to execute steps 805 and 807 performed by the BCAMF network element 20 in the foregoing embodiment.

Example 3-9, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication module 113 is used to support the communication device to perform the action received by the user data management network element in step 803 of the foregoing embodiment. The processing module 112 is configured to support the communication device to execute step 804 executed by the user data management network element in the foregoing embodiment.

Example 3-10, the communication device is a service initiating network element or a chip applied to the service initiating network element. In this case, the communication module 113 is used to support the communication device to perform the action sent by the service initiating network element in step 901 of the foregoing embodiment. The processing module 112 is configured to support the communication device to execute steps 904 and 905 performed by the service initiating network element in the foregoing embodiment.

In Example 3-11, the communication device is a BCHF network element 40 or a chip applied in the BCHF network element 40. In this case, the communication module 113 is used to support the communication device to perform the action received by the BCHF network element 40 in step 901 and the action sent by the BCHF network element 40 in step 903 in the above embodiment. The processing module 112 is configured to support the communication device to execute step 902 executed by the BCHF network element 40 in the foregoing embodiment.

Example 3-12, the communication device is a first network element, or a chip applied to the first network element. In this case, the communication module 113 is used to support the communication device to perform the actions sent by the first network element in step 1001 and the actions received by the first network element in step 1002 in the foregoing embodiment. The processing module 112 is configured to support the communication device to execute step 1003 executed by the first network element in the foregoing embodiment.

In an optional embodiment, the communication module 113 is configured to support the communication device to perform the sending action performed by the first network element in step 1004 and the receiving action performed by the first network element in step 1005 in the foregoing embodiment. The processing module 112 is configured to support the communication device to execute step 1006 executed by the first network element in the foregoing embodiment.

Example 3-13, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication module 113 is used to support the communication device to perform the actions received by the user data management network element in step 1001 and the actions sent by the user data management network element in step 1002 in the foregoing embodiment.

In an optional embodiment, the communication module 113 is configured to support the communication device to perform the receiving action performed by the user data management network element in step 1004 and the sending action performed by the user data management network element in step 1005 in the above embodiment. .

Example 3-14, the communication device is the first network element, or is a chip applied to the first network element. In this case, the communication module 113 is used to support the communication device to perform the action sent by the first network element in step 1101 of the foregoing embodiment.

In an optional embodiment, the communication module 113 is configured to support the communication device to perform the sending action performed by the first network element in step 1104 and the receiving action performed by the first network element in step 1105 in the foregoing embodiment.

Example 3-15, the communication device is a user data management network element, or a chip applied to a user data management network element. In this case, the communication module 113 is used to support the communication device to perform the action received by the user data management network element in step 1101 of the foregoing embodiment. The processing module 112 is configured to support the communication device to execute step 1102 executed by the user data management network element in the foregoing embodiment.

The processing module 112 may be a processor or a controller, for example, a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on. The communication module 113 may be a transceiver, a transceiver circuit, or a communication interface. The storage module 111 may be a memory.

When the processing module 112 is the processor 41 or the processor 45, the communication module 113 is the communication interface 43, and the storage module 111 is the memory 42, the communication device involved in this application may be the communication device shown in FIG. 4.

FIG. 14 is a schematic structural diagram of a chip 150 provided by an embodiment of the present application. The chip 150 includes one or more (including two) processors 1510 and a communication interface 1530.

Optionally, the chip 150 further includes a memory 1540. The memory 1540 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1510. A part of the memory 1540 may also include a non-volatile random access memory (NVRAM).

In some embodiments, the memory 1540 stores the following elements, execution modules or data structures, or their subsets, or their extended sets.

In the embodiment of the present application, the corresponding operation is executed by calling the operation instruction stored in the memory 1540 (the operation instruction may be stored in the operating system).

One possible implementation manner is: the terminal, the BACMF network element, the user data management network element, and the chip used in the first network element have similar structures, and different devices can use different chips to realize their respective functions.

The processor 1510 controls processing operations of any one of the terminal, the BACMF network element, the user data management network element, and the first network element. The processor 1510 may also be referred to as a central processing unit (CPU).

The memory 1540 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1510. A part of the memory 1540 may also include a non-volatile random access memory (NVRAM). For example, in an application, the memory 1540, the communication interface 1530, and the memory 1540 are coupled together by a bus system 1520, where the bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clarity of description, various buses are marked as the bus system 1520 in FIG. 14.

The method disclosed in the foregoing embodiments of the present application may be applied to the processor 1510 or implemented by the processor 1510. The processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 1510 or instructions in the form of software. The aforementioned processor 1510 may be a general-purpose processor, a digital signal processing (digital signal processing, DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or Other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and completes the steps of the foregoing method in combination with its hardware.

In a possible implementation manner, the communication interface 1530 is used to perform the steps of receiving and sending the terminal, the BACMF network element, the user data management network element, and the first network element in the embodiment shown in FIGS. 5-11. The processor 1510 is configured to execute the processing steps of the terminal, the BACMF network element, the user data management network element, and the first network element in the embodiment shown in FIGS. 5-11.

The above communication unit may be an interface circuit or communication interface or transceiver of the communication device for receiving signals from other devices. For example, when the communication device is implemented in the form of a chip, the communication unit is an interface circuit or communication interface used by the chip to receive signals or send signals from other chips or devices.

In the foregoing embodiment, the instructions stored in the memory for execution by the processor may be implemented in the form of a computer program product. The computer program product may be written in the memory in advance, or it may be downloaded and installed in the memory in the form of software.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. Computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to transmit to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk, SSD).

The embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores instructions. When the instructions are executed, the terminal or a chip applied to the terminal executes any one of FIGS. 5 to 8 by the terminal. A step of.

The embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores instructions. When the instructions are executed, the BCAMF network element or the chip applied in the BCAMF network element executes any of the A step performed by the BCAMF network element.

The embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores instructions. When the instructions are executed, the user data management network element or the chip applied to the user data management network element executes Figure 5~ Any of the steps in Figure 8 are executed by the user data management network element.

The embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores instructions. When the instructions are executed, the service initiating network element or the chip applied to the service initiating network element executes any one of FIG. 9 Steps performed by the service initiating network element.

An embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium stores instructions. When the instructions are executed, the first network element or a chip applied to the first network element executes FIG. 10 or FIG. 11 In the steps performed by the first network element.

The embodiments of the present application provide a computer-readable storage medium, and instructions are stored in the computer-readable storage medium. When the instructions are executed, the user data management network element or the chip applied to the user data management network element executes FIG. 10 or Figure 11 shows the steps performed by the user data management network element.

The aforementioned readable storage medium may include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.

The embodiment of the present application provides a computer program product including instructions. The computer program product stores instructions. When the instructions are executed, the terminal or a chip applied in the terminal executes any one of Figures 5 to 8 executed by the terminal. step.

On the other hand, a computer program product including instructions is provided. The computer program product stores instructions. When the instructions are executed, the BCAMF network element or the chip applied in the BCAMF network element executes any one of Figures 5 to 8 Steps performed by the BCAMF network element.

In another aspect, a computer program product including instructions is provided. The instructions are stored in the computer program product. When the instructions are executed, the user data management network element or the chip applied to the user data management network element executes FIG. 5 to FIG. Any one of the steps performed by the user data management network element.

In another aspect, a computer program product including instructions is provided. The instructions are stored in the computer program product. When the instructions are executed, the service initiating network element or the chip applied in the service initiating network element executes any one of the steps shown in FIG. 9 The steps performed by the service initiating network element.

In yet another aspect, a computer program product including instructions is provided. The computer program product stores instructions. When the instructions are executed, the first network element or a chip applied to the first network element executes the steps shown in FIG. 10 or FIG. 11 Steps performed by the first network element.

In one aspect, a chip is provided. The chip is used in a terminal. The chip includes at least one processor and a communication interface. The communication interface is coupled to the at least one processor. The processor is used to execute instructions to execute any one of FIGS. 5 to 8. Steps performed by the terminal.

In yet another aspect, a chip is provided. The chip is applied to a user data management network element. The chip includes at least one processor and a communication interface, and the communication interface is coupled to the at least one processor. The processor is used to run instructions to execute FIG. 5~ Any of the steps in Figure 8 are executed by the user data management network element.

In one aspect, a chip is provided. The chip is applied to a BCAMF network element. The chip includes at least one processor and a communication interface, the communication interface is coupled to at least one processor, and the processor is used to execute instructions to execute the execution of FIGS. 5-8. Any of the steps performed by the BCAMF network element.

In yet another aspect, a chip is provided. The chip is applied to a service initiation network element. The chip includes at least one processor and a communication interface. The communication interface is coupled to the at least one processor. The processor is used to run instructions to execute any of the instructions in FIG. A step performed by the service initiating network element.

In yet another aspect, a chip is provided. The chip is applied to a first network element. The chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the processor is used to execute instructions to execute FIG. 10 or FIG. Step 11 performed by the first network element.

In yet another aspect, a chip is provided. The chip is applied to a user data management network element. The chip includes at least one processor and a communication interface. The communication interface is coupled to the at least one processor. The processor is used to run instructions to execute FIG. 10 or Figure 11 shows the steps performed by the user data management network element.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. Computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (digital subscriber line, referred to as DSL) or wireless (such as infrared, wireless, microwave, etc.) transmission to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or includes one or more data storage devices such as servers, data centers, etc. that can be integrated with the medium. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

Although the present application is described in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and realize the disclosure by looking at the drawings, the disclosure, and the appended claims. Other changes to the embodiment. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality. A single processor or other unit may implement several functions listed in the claims. Certain measures are described in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the application has been described in combination with specific features and embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the application. Correspondingly, the specification and drawings are merely exemplary descriptions of the application as defined by the appended claims, and are deemed to cover any and all modifications, changes, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these modifications and variations.

Claims

A method for using blockchain to provide services for terminals, which is characterized in that it includes:

The BCAMF network element of the blockchain account management function of the first operator receives an account opening request message from a terminal, where the account opening request message includes an identifier of the terminal;

The BCAMF network element verifies that the terminal meets the account opening requirements according to the identification of the terminal;

The BCAMF network element sends a first message to the user data management network element of the first operator, where the first message includes the subscription data of the terminal.
The method according to claim 1, wherein the identification of the terminal is used to identify the terminal in a blockchain.
The method according to claim 1 or 2, wherein the method further comprises:

The BCAMF network element publishes first transaction information in the blockchain, and the first transaction information includes a first correspondence between the terminal's identifier and the information of the first operator, and the first correspondence The relationship is used to indicate that the terminal successfully opens an account in the first operator.
The method according to any one of claims 1-3, wherein the method further comprises:

The BCAMF network element determines that the first operator currently provides services for the terminal;

The BCAMF network element publishes second transaction information in the blockchain, where the second transaction information is used to indicate that the first operator currently provides services for the terminal.
The method according to claim 4, wherein the BCAMF network element publishing second transaction information in the blockchain comprises:

The BCAMF network element sets the first corresponding relationship between the identifier of the terminal and the identifier of the first operator recorded in the blockchain to an active state;

When the first correspondence is set to an activated state, it means that the first operator currently provides services for the terminal.
The method according to claim 4 or 5, wherein the method further comprises:

The BCAMF network element receives the first instruction from the terminal;

The determining by the BCAMF network element that the service is currently provided by the first operator for the terminal includes:

According to the first instruction, the BCAMF network element determines that the first operator currently provides services for the terminal.
The method according to any one of claims 1-3, wherein the method further comprises:

The BCAMF network element determines that the first operator currently does not provide services for the terminal;

The BCAMF network element publishes third transaction information in the blockchain, where the third transaction information is used to indicate that the first operator currently does not provide services for the terminal.
The method according to claim 7, wherein the BCAMF network element publishing third transaction information in the blockchain comprises:

The BCAMF network element sets the first correspondence between the identifier of the terminal and the identifier of the first operator recorded in the blockchain to an inactive state;

When the first correspondence is set to an inactive state, it means that the first operator currently does not provide services for the terminal.
A method for using blockchain to provide services for terminals, which is characterized in that it includes:

The first network element sends a first message to the user plane data management network element, where the first message is used to indicate that the first network element is registered as a network element that provides services for the terminal, and the first message includes the information of the terminal Identification; the first network element and the user plane data management network element belong to a first operator;

Receiving, by the first network element, a response message from the user plane data management network element indicating successful registration;

The first network element publishes first transaction information in the blockchain, and the first transaction information includes: information of the first network element that provides services for the terminal.
A method for using blockchain to provide services for terminals, which is characterized in that it includes:

The user data management network element receives a first message from a first network element, where the first message is used to indicate that the first network element is registered as a network element that provides services to the terminal, and the first message includes the terminal The identification; the first network element and the user plane data management network element belong to the first operator;

The user data management network element publishes first transaction information in the blockchain, where the first transaction information is used to indicate that the first operator currently provides services for the terminal.
A method for using blockchain to provide services for terminals, which is characterized in that it includes:

The BCHF network element receives a first request message from a service initiating network element, the first request message includes the identification of the terminal, the first request message is used to request first information, and the first information is used to determine the One or more network elements that the terminal provides services;

The BCHF network element obtains the first information from the blockchain according to the identifier of the terminal;

The BCHF network element sends the first information to the service initiating network element.
The method according to claim 11, wherein the first information is: information of one or more network elements that provide services for the terminal, and the first request message carries a first indication, The first indication is used by the BCHF network element to determine information about one or more network elements that are requested by the service initiating network element to provide services for the terminal.
The method according to claim 12, wherein the first indication is specifically used to indicate any one or more of the following:

The type of service that the service initiating network element needs to communicate with the terminal, or the type of network element requested by the service initiating network element, or the name of the network element required by the service initiating network element.
The method according to claim 11, wherein the first information is: information of an operator currently providing services to the terminal, and the first request message carries a second indication, and the second indication is used for The BCHF network element determines the information of the operator currently providing services for the terminal.
A method for using blockchain to provide services for terminals, which is characterized in that it includes:

The service initiating network element obtains first information from the blockchain according to the identifier of the terminal, where the first information is used to determine one or more network elements that provide services for the terminal;

The service initiating network element determines, according to the first information, one or more network elements that provide services for the terminal;

The service initiating network element interacts with any one of the one or more network elements to provide a service for the terminal.
The method according to claim 15, wherein the service initiating network element obtains the first information from the blockchain according to the identification of the terminal, comprising:

The service initiating network element sends a first request message to the blockchain processing function BCHF network element, where the first request message includes the identification of the terminal, and the first request message is used to request first information,

The service initiating network element receives the first information from the BCHF.
A device for providing services for a terminal by using a blockchain is characterized in that it includes:

A communication unit, configured to receive an account opening request message from a terminal, where the account opening request message includes an identifier of the terminal;

A processing unit, configured to verify that the terminal meets the account opening requirements according to the terminal identifier;

The communication unit is further configured to send a first message to a user data management network element of a first operator, where the first message includes subscription data of the terminal.
The device according to claim 17, wherein the processing unit is further configured to publish first transaction information in the blockchain, the first transaction information including the terminal identifier and the first operation A first correspondence relationship between information of the business provider, where the first correspondence relationship is used to indicate that the terminal successfully opens an account in the first operator.
The device according to claim 17 or 18, wherein the processing unit is further configured to determine that the first operator currently provides services for the terminal;

The processing unit is further configured to publish second transaction information in the blockchain, where the second transaction information is used to indicate that the first operator currently provides services for the terminal.
The device according to claim 19, wherein the processing unit is specifically configured to compare the first correspondence between the identification of the terminal and the identification of the first operator recorded in the blockchain The relationship is set to active;

When the first correspondence is set to an activated state, it means that the first operator currently provides services for the terminal.
The device according to claim 19 or 20, wherein the communication unit is further configured to receive a first instruction from the terminal;

The processing unit is specifically configured to determine, according to the first instruction, that the first operator currently provides the service for the terminal.
A device for providing services for a terminal by using a blockchain is characterized in that it includes:

The communication unit is configured to send a first message to a user plane data management network element, where the first message is used to indicate that the device is registered as a network element that provides services to the terminal, and the first message includes the identification of the terminal Or SUPI; the device and the user plane data management network element belong to the first operator;

The communication unit is configured to receive a response message from the user plane data management network element indicating that the registration is successful;

The processing unit is configured to publish first transaction information in the blockchain, where the first transaction information includes: information of the device that provides services for the terminal.
A device for providing services for a terminal by using a blockchain is characterized in that it includes:

The communication unit is configured to receive a first message from a first network element, where the first message is used to indicate that the first network element is registered as a network element that provides services to a terminal, and the first message includes the terminal的ID; The first network element and the device belong to a first operator;

The processing unit is configured to publish first transaction information in the blockchain, where the first transaction information is used to indicate that the first operator currently provides services for the terminal.
A device for providing services for a terminal by using a blockchain is characterized in that it includes:

The communication unit is configured to receive a first request message from a service initiating network element, where the first request message includes an identifier of the terminal, the first request message is used to request first information, and the first information is used to determine One or more network elements that the terminal provides services;

A processing unit, configured to obtain first information from the blockchain according to the terminal identifier;

The communication unit is configured to send the first information to the service initiating network element.
The apparatus according to claim 24, wherein the first information is information of one or more network elements that provide services for the terminal, and the first request message carries a first indication, and the first Information indicating one or more network elements that are used by the device to determine the service initiation network element request to provide services for the terminal.
The device according to claim 25, wherein the first indication is specifically used to indicate any one or more of the following:

The type of service that the service initiating network element needs to communicate with the terminal, or the type of network element requested by the service initiating network element, or the name of the network element required by the service initiating network element.
The apparatus according to claim 24, wherein the first information is: information of an operator currently providing services to the terminal, and the first request message carries a second indication, and the second indication is used for The device determines the information of the operator currently providing services for the terminal.
A device for providing services for a terminal by using a blockchain is characterized in that it includes:

The communication unit is configured to obtain first information from the blockchain according to the identifier of the terminal, where the first information is used to determine one or more network elements that provide services for the terminal;

The processing unit is configured to determine, according to the first information, one or more network elements that provide services for the terminal; and to interact with any one of the one or more network elements, as the The terminal provides services.
The device according to claim 28, wherein the communication unit is configured to send a first request message to a blockchain processing function BCHF network element, and the first request message includes an identifier of the terminal, and The first request message is used to request first information, and the first information is used to determine one or more network elements that provide services for the terminal;

The communication unit is configured to receive the first information from the BCHF.
A communication system, characterized by comprising the device according to any one of claims 24-27 and the device according to claim 28 or 29.
A computer-readable storage medium comprising instructions, which when run on a computer, cause the computer to execute the method according to any one of claims 1 to 16.