CN115915102B

CN115915102B - USAT characteristic updating method, eUICC, terminal, equipment and medium

Info

Publication number: CN115915102B
Application number: CN202211349520.4A
Authority: CN
Inventors: 刘煜
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2024-03-29
Anticipated expiration: 2042-10-31
Also published as: CN115915102A

Abstract

The invention provides a USAT characteristic updating method, an eUICC, a terminal, equipment and a medium, and relates to the technical field of communication, wherein the method comprises the following steps: the eUICC responds to the Profile change to generate a first command and sends the first command to the terminal, so that the terminal determines the range and the content of the updated USAT characteristic required by the eUICC, generates a USAT requirement indication and a response message of the first command and returns the response message to the eUICC; receiving a response message of the first command, determining the support condition of the designated USAT command according to the USAT requirement indication, and generating a USAT characteristic indication and a second command; and sending a second command to the terminal so that the terminal can process the USAT requirement indication and the USAT characteristic indication in a related manner to determine the support condition of the specified USAT command. The technical scheme provided by the invention can realize that the corresponding USAT characteristic changes when the terminal knows that the Profile state changes.

Description

USAT characteristic updating method, eUICC, terminal, equipment and medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a USAT characteristic updating method, an eUICC, a terminal, a computer device, and a computer-readable storage medium.

Background

An eSIM (embedded subscriber identity module) technology applied to M2M (Machine-to-Machine), which means that one or both parties are machines and the machines can automatically complete a communication form of an entire communication process through program control, is called eUICC (embedded universal integrated circuit card) remote management in GSMA (GlobalSystem for Mobile communications Association, global system for mobile communications) international standards.

In the remote management of the eUICC, the remote management of the subscription data (Profile) of the eUICC is realized through remote interaction between the eUICC and a service platform, and the terminal only plays a role of data transparent transmission as a data transmission channel. In the prior art, although the terminal can acquire the basic management event occurring on the eUICC card, the overall operation of the Profile includes adding and deleting, and the change of the Profile attribute caused by the change of the Profile is related to the range and degree of the interaction flow and the function implementation of the terminal and the eUICC card, especially for the STK (simtoolkit) directly acting on the interface of the machine card/USAT (USIM ApplicationToolkit, USIM application toolkit, wherein the USIM is Universal Subscriber IdentityModule, the global user identity module) has a significant influence on the subsequent card-oriented service for the terminal, and the requirement of the terminal is not supported in the current technology, namely, the terminal cannot know the condition that the corresponding USAT characteristic changes when the Profile state of the eUICC changes.

Disclosure of Invention

The invention is completed for at least partially solving the technical problem that the terminal in the prior art cannot know the corresponding USAT characteristic change when the Profile state of the eUICC changes.

According to an aspect of the present invention, there is provided a USAT characteristic updating method applied to an eUICC, the method including:

generating a first command containing Profile management operation generation information in response to the change of the subscription data Profile;

the first command is sent to the terminal, so that the terminal determines the range and the content of the updated USAT characteristic required by the eUICC to be provided after receiving the first command, generates a USAT required indication, and returns to the eUICC after generating a response message of the first command based on the USAT required indication;

receiving a response message of the first command, acquiring a USAT requirement indication, determining the support condition of the designated USAT command according to the USAT requirement indication, generating a USAT characteristic indication, and generating a second command based on the USAT characteristic indication; the method comprises the steps of,

and sending the second command to the terminal, so that the terminal can process the USAT requirement indication and the USAT characteristic indication in a correlated way after receiving the second command, and the support condition of the specified USAT command is determined.

Optionally, after receiving the response message of the first command, the method further includes:

determining a Profile identifier which is currently being started according to the USAT requirement indication; the terminal also determines whether the eUICC is required to provide the Profile identifier which is currently started after receiving the first command, and if so, generates a USAT requirement indication based on the range and the content of the updated USAT characteristic required to be provided by the eUICC and the Profile identifier which is required to be started currently;

the generating USAT characteristic indication specifically includes:

generating a USAT characteristic indication based on the support condition of the designated USAT command and the Profile identification which is currently enabled, so that the terminal acquires the Profile identification which is currently enabled after receiving a second command generated based on the USAT characteristic indication.

carrying out message validity verification on the response message of the first command;

responsive to the message validity verification passing, performing a step of determining a support condition for the specified USAT command in accordance with the USAT requirement indication;

and responding to the failure of the verification of the validity of the message, and ending the current flow.

Optionally, performing message validity verification on the response message of the first command includes:

Comparing the length indication value that requires the eUICC to provide the updated range of USAT characteristics with the number of USAT commands specified;

determining that the message validity verification is passed in response to the values of the two being the same;

and responding to the difference of the values of the two values, and judging that the verification of the validity of the message fails.

Optionally, determining the support condition of the specified USAT command according to the USAT requirement indication includes:

determining USAT command characteristics of a support situation to be provided according to the USAT requirement indication;

determining whether all USAT commands are supported after updating in response to characteristics of all USAT commands required to be supported by the current eUICC;

in response to a characteristic of the partially defined USAT command requiring provision of current eUICC support, it is determined whether the partially defined USAT command is supported after updating.

According to another aspect of the present invention, there is provided a USAT characteristic updating method applied to a terminal, the method including:

receiving a first command sent by the eUICC; the method comprises the steps that an eUICC responds to change of Profile of subscription data, generates a first command containing Profile management operation occurrence information and sends the first command to a terminal;

determining a range and content of the updated USAT characteristics required for the eUICC to provide, generating a USAT requirements indication, and generating a response message for the first command based on the USAT requirements indication;

Returning the response message of the first command to the eUICC, so that the eUICC receives the response message of the first command, acquires a USAT requirement indication, determines the support condition of the designated USAT command according to the USAT requirement indication, generates a USAT characteristic indication, generates a second command based on the USAT characteristic indication, and sends the second command to the terminal;

and receiving the second command, and carrying out association processing on the USAT requirement indication and the USAT characteristic indication to determine the supporting condition of the specified USAT command.

Optionally, after receiving the first command sent by the eUICC, the method further includes:

judging whether the USAT characteristic of the updated eUICC needs to be acquired according to the self demand;

if so, then the step of determining the scope and content that requires the eUICC to provide the updated USAT characteristics is performed.

determining whether the eUICC is required to provide a Profile identity that is currently enabled;

the generating USAT requirement indication specifically includes:

generating a USAT request indication based on the range and the content of the USAT characteristic which are required to be updated and the Profile identifier which is required to be started by the eUICC to be started currently in response to the requirement that the eUICC provides the Profile identifier which is started currently, so that the eUICC determines the support condition of a specified USAT command and the Profile identifier which is started currently according to the USAT request indication after receiving a response message of the first command generated based on the USAT request indication, and generates the USAT characteristic indication;

Upon receiving the second command generated based on the USAT characteristic indication, further comprising:

the Profile identification currently being enabled is obtained.

Acquiring a USAT requirement indicating bit and a USAT characteristic indicating bit, wherein the USAT requirement indicating bit indicates whether the USAT command characteristic corresponding to the indicating bit is required to be provided or not, and the USAT characteristic indicating bit indicates whether the updated eUICC supports the USAT command characteristic corresponding to the indicating bit or not;

calculating a bit phase of the USAT requirement indicating bit and the USAT characteristic indicating bit to obtain a designated USAT command characteristic; or reading the value of the corresponding USAT characteristic indicating bit according to the valid bit of the USAT requirement indicating bit to obtain the designated USAT command characteristic.

According to yet another aspect of the present invention, there is provided an eUICC, comprising:

a first command generating module configured to generate a first command including a Profile management operation occurrence message in response to a change of the Profile of the subscription data;

the first sending module is configured to send the first command to the terminal, so that the terminal determines a range and content of the updated USAT characteristics required to be provided by the eUICC after receiving the first command, generates a USAT requirement indication, generates a response message of the first command based on the USAT requirement indication, and returns the response message to the eUICC;

The first receiving module is used for receiving the response message of the first command and acquiring a USAT requirement indication; the method comprises the steps of,

a second command generation module configured to determine a support condition for the specified USAT command based on the USAT requirement indication, generate a USAT characteristic indication, and generate a second command based on the USAT characteristic indication;

the first sending module is further configured to send the second command to the terminal, so that the terminal, after receiving the second command, processes the USAT requirement indication and the USAT characteristic indication in a correlated manner to determine the support condition of the specified USAT command.

According to still another aspect of the present invention, there is provided a terminal interacting with an eUICC, comprising:

the second receiving module is configured to receive a first command sent by the eUICC; the method comprises the steps that an eUICC responds to change of Profile of subscription data, generates a first command containing Profile management operation occurrence information and sends the first command to a terminal;

a first response message generation module configured to determine a range and content of the updated USAT characteristics required for the eUICC to provide, generate a USAT requirements indication, and generate a response message for the first command based on the USAT requirements indication;

the second sending module is configured to return a response message of the first command to the eUICC, so that the eUICC receives the response message of the first command, obtains a USAT requirement indication, determines a support condition of a specified USAT command according to the USAT requirement indication, generates a USAT characteristic indication, generates a second command based on the USAT characteristic indication, and sends the second command to the terminal;

The second receiving module is further configured to receive the second command; the method comprises the steps of,

and the association processing module is used for associating and processing the USAT requirement indication and the USAT characteristic indication to determine the support condition of the specified USAT command.

According to a further aspect of the present invention there is provided a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor performing the aforementioned USAT characteristic updating method when the processor runs the computer program stored in the memory.

According to a further aspect of the present invention, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the aforementioned USAT characteristic updating method.

The technical scheme provided by the invention can comprise the following beneficial effects:

according to the USAT characteristic updating method provided by the invention, on the basis of supporting the first command of the eUICC about Profile operation, the terminal can provide updated USAT characteristic and capability of the current eUICC to the eUICC through the response message of the first command according to the self requirement, so that the eUICC can send the specified supporting condition of the USAT command to the terminal through the second command, and the terminal can know the corresponding condition that the USAT characteristic changes along with the change of the Profile state of the eUICC.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and do not limit the invention.

Fig. 1 is a flow chart of a USAT characteristic updating method according to an embodiment of the present invention;

fig. 2 is a flow chart of another USAT characteristic updating method according to an embodiment of the present invention;

fig. 3 is a flowchart of another USAT characteristic updating method according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an eUICC provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a USAT characteristic updating system according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a computer device according to an embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.

The SIM card (Subscriber Identity Module ) is one of the core functional modules of the mobile network service, and bears the important responsibility of the mobile terminal for network access authentication. In recent years, with the development of integration and form diversity of mobile terminals (particularly terminals represented by internet of things devices), new demands for miniaturization, vibration resistance, high temperature resistance, moisture resistance and the like are continually put forward for SIM cards. Traditional SIM cards have evolved in multiple stages with gradually miniaturized dimensions, but still cannot meet the stringent space limitation requirements of some terminals. Under the background, an embedded encapsulated SIM card, namely an eSIM card, capable of meeting the three-proofing requirement of a terminal is generated. The eSIM is based on cryptography technology, so that the operator subscription data is separated from hardware in the production, storage and delivery links, exists in the form of electronic data, and is supported to be remotely configured to a terminal through a network. The data structure and function of the core Subscriber Identity Module (SIM) of the eSIM are completely identical to those of a conventional SIM card. In order to meet the electronic requirements, the eSIM is different from the traditional SIM in terms of technical implementation, production mode and use mode. Such as requiring the terminal to have built-in security hardware for secure storage of electronic cards, such as eUICC (embedded universal integrated circuit card). Subscription data are electronized and can be downloaded and installed to the user terminal through a network, so that the subscription data are more suitable for hardware requirements of various novel terminals, and user experience and operation efficiency are effectively improved through remote online use and management modes.

The eSIM technology applied to the M2M service is called eUICC remote management in the GSMA international standard, in which the remote management of subscription data of the eUICC is implemented through remote interaction between the eUICC and a service platform, a terminal only plays a role of data transparent transmission as a channel of data transmission, and cannot directly obtain service event behaviors of the eUICC, and USAT (USIM Application Toolkit ) provided by the eUICC is required, wherein the USIM is Universal Subscriber Identity Module, and a global user identity module) instructs to obtain basic remote management events occurring around subscription data files (i.e., profiles), including creation and deletion of the profiles. When events such as Profile creation, profile deletion and the like occur on the eUICC, the eUICC synchronizes the occurrence of the events to the terminal by initiating an active USAT command, and the terminal obtains the change of the deployment state of the Profile on the eUICC in this way.

Because the form of the eUICC is introduced, the relation between the terminal and the eUICC increases more possibility, and the change of Profile can mean the comprehensive change of the characteristics and the capability of the eUICC, the terminal can strengthen interaction aiming at the state of the eUICC, so that the terminal can better adapt to the change brought by the eUICC, master the updated capability of the eUICC in time and provide a reliable and accurate basis for the service realized by the mutual cooperation of the machine and the card. As described above, in the prior art, the terminal may acquire the basic management event occurring on the eUICC card, but the overall operation surrounding the Profile includes adding and deleting, and the change of the Profile attribute caused by the change of the Profile is also very important, though it belongs to some specific details, regarding the scope and extent of the interaction flow and the function implementation of the terminal and the eUICC card, especially regarding the STK/USAT characteristics (i.e., USIM application tool mechanism) directly acting on the interface of the machine card, it has a significant influence on the subsequent card-oriented service for the terminal, and it is necessary for the synchronization of the state change in this aspect, however, the current technology does not support the requirement of the terminal, that is, the terminal cannot learn the situation that the corresponding USAT mechanism changes when the Profile state of the eUICC changes. Aiming at the requirements, the invention provides a scheme for further providing a state update condition for synchronously acquiring the USAT characteristic corresponding to the Profile for the terminal on the basis of interaction between the existing terminal and the eUICC on the integral state change of the Profile. The following is a detailed description of specific embodiments.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above-described drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order; in addition, the embodiments of the present invention and the features in the embodiments may be arbitrarily combined with each other without collision.

In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present invention, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.

Fig. 1 is a flow chart of a USAT characteristic updating method according to an embodiment of the present invention. The method is applied to the eUICC, as shown in fig. 1, and includes the following steps S101 to S104.

S101, responding to the change of the Profile, and generating a first command containing a Profile management operation generation message.

In this step, when the Profile is changed (e.g., the Profile is created and the Profile is deleted), an active command, i.e., a first command, operated by the eUICC initiates the USAT feature update procedure.

The first command may be named eUICC Operation, and its structure is defined as the prior art, and will not be described here.

S102, the first command is sent to the terminal, after the terminal receives the first command, the range and the content of the updated USAT characteristic which are required to be provided by the eUICC are determined, a USAT requirement indication is generated, and a response message of the first command is generated based on the USAT requirement indication and then returned to the eUICC. Wherein, the range of USAT characteristics refers to the characteristics of all USAT commands supported by the current eUICC, or the characteristics of the partially defined USAT commands supported by the current eUICC; the content of the USAT characteristics refers to the characteristics of which USAT commands are specifically supported by the current eUICC.

In this step, since the terminal receiving the first command may be a prior art terminal or a terminal supporting the newly increased demand, in order to be compatible with both the two types of terminals, a response (Terminal Response) message after the terminal receives the first command needs to be updated on the original basis to determine whether the terminal supports and needs to obtain the USAT characteristic capability updated by the eUICC, and the updated response message, that is, the response message of the first command, may be named Terminal Response (for eUICC Operation), and its structural definition may be as shown in table 1 below.

TABLE 1

Note that:

1) The command qualifier in the response is the same as the corresponding part of the first command, represents the specific operation of the eUICC of the command received at this time, and confirms that the operation content is the creation, deletion and the like of the Profile;

2) The "USAT requirement" is a new data object, and optionally, only exists when the terminal supports and needs to acquire USAT characteristic capability of the eUICC update (consistent with presence or absence of Profile identifier), which means that the terminal requires the eUICC to provide USAT characteristic capability of the current eUICC after Profile update, and includes three parts: the first part indicates whether the eUICC is required to provide a Profile identifier currently being enabled, and it should be noted that the Profile identifier is not necessarily the Profile identifier of the current command, if the current command is a Profile deletion, the Profile identifier in the response refers to the identifier of other profiles enabled after the Profile deletion in the command; the second part is a range (1 byte in length) representing the USAT characteristics required to be provided by the eUICC, "FF" representing characteristics of all USAT commands required to be provided for current eUICC support, the remaining "XX" representing characteristics of partially defined USAT commands required to be provided for current eUICC support, the number of defined characteristics being "XX", the specifically defined USAT command characteristics being defined in the third part (10 bytes in length); in the third section, each of the USAT requirement indication bits indicates a corresponding USAT command characteristic, and when the bit is "1", it indicates that the USAT command characteristic corresponding to the bit is required to be provided, and when the bit is "0", it indicates that the USAT command characteristic corresponding to the bit is not required to be provided (when the USAT requirement range is "FF", all valid bits are set to "1"), and the structure definition can be seen in the above table 1.

S103, receiving a response message of the first command, acquiring a USAT requirement indication, determining the support condition of the designated USAT command according to the USAT requirement indication, generating a USAT characteristic indication, and generating a second command based on the USAT characteristic indication.

In this step, after the terminal indicates, through the response message of the first command, that the eUICC is required to further provide the updated USAT characteristic of the current eUICC, the eUICC sends the specified corresponding USAT command characteristic to the terminal according to the terminal requirement, and for this purpose, the eUICC needs to add a new proactive command to carry the USAT command characteristic. The new command, namely the second command, is based on the response message of the first command, and provides whether the eUICC is currently supported for the designated USAT command or not for the terminal in a mode of a "USAT characteristic indication" field, when the eUICC is required to provide all USAT command characteristics, all supporting conditions of the commands need to be provided, and when the eUICC is required to provide the USAT command characteristics defined by part, only supporting conditions of USAT commands with USAT requirement indication of "1" are provided. The second command may be named USAT Status For eUICC and its structural definition may be as shown in table 2 below.

TABLE 2

1) The "Profile identification" is a conditional optional data object, which must exist when the response message to the first command described above requires the eUICC to provide an identification of the currently enabled Profile, indicating that the eUICC is currently enabled.

2) The "USAT characteristic indication" is an added data object, and is necessarily selected, and indicates that the eUICC supports the specified USAT command characteristic provided according to the response message requirement of the first command, wherein the "USAT characteristic indication" value part structure is associated with the "USAT requirement indication" value part in the response message of the first command, only bits set to "1" in the former are valid bits (the rest bits are invalid bits, and the support condition of the corresponding USAT command is not provided), each valid bit indicates whether the updated eUICC supports the corresponding USAT command characteristic, the bits are 1, and the eUICC does not support the USAT command characteristic corresponding to the bits.

S104, the second command is sent to the terminal, so that the terminal can process the USAT requirement indication and the USAT characteristic indication in a correlated way after receiving the second command, and the support condition of the specified USAT command is determined.

In this step, after receiving the second command, the terminal processes the USAT requirement indication and the USAT characteristic indication in a correlated manner, so as to determine the support condition of the designated USAT command, thereby obtaining the condition that the corresponding USAT characteristic changes when the Profile state of the eUICC changes.

In a specific embodiment, after step S104, the following step S105 is further included.

S105, receiving a response message of the second command; and the terminal generates a response message of the second command based on the execution condition of the second command and returns the response message to the eUICC.

In this embodiment, after the terminal obtains the support condition of the designated USAT command, the terminal also feeds back the execution condition of the corresponding second command to the eUICC, so that the eUICC knows that the terminal has acquired the updated USAT characteristic.

In one embodiment, step S103 includes the following steps S103a to S103d.

S103a, receiving a response message of the first command, and acquiring a USAT requirement indication; the terminal also determines whether the eUICC is required to provide the Profile identifier which is currently started after receiving the first command, and if so, generates a USAT requirement indication based on the range and the content of the updated USAT characteristic required to be provided by the eUICC and the Profile identifier which is required to be started currently;

s103b, determining the support condition of a designated USAT command and the Profile identifier which is currently started according to the USAT requirement indication;

s103c, generating a USAT characteristic indication based on the support condition of the designated USAT command and the Profile identifier which is currently being started;

S103d, generating a second command based on the USAT characteristic indication, so that the terminal acquires the Profile identifier which is currently enabled after receiving the second command generated based on the USAT characteristic indication.

In this embodiment, when the terminal supports and needs to acquire the USAT characteristic capability updated by the eUICC, the terminal may further require the eUICC to provide the Profile identifier currently being enabled, and the eUICC sends the Profile identifier currently being enabled to the terminal through the second command. The Profile identifier is not necessarily the Profile identifier of the current command (i.e. the first command), if the current command is a Profile deletion, the Profile identifier in the response message of the first command refers to the identifiers of other profiles enabled after the Profile deletion in the first command.

In a specific embodiment, after step S103a, the following step S103e is further included.

And S103e, carrying out message validity verification on the response message of the first command.

Accordingly, step S103b specifically includes: in response to the message validity verification passing in step S103a, a step of determining the support case of the specified USAT command and the Profile identification currently being enabled according to the USAT requirement indication is performed. Of course, if the message validity verification fails, the current flow is directly ended.

In this embodiment, the message validity verification can be performed on the condition that the eUICC is required to provide the specified USAT characteristic, and only if the verification is passed, the subsequent steps are executed, if the verification fails, it indicates that the requirement of the terminal for the eUICC to provide the USAT characteristic is wrong, the message is invalid, and the current flow is ended.

In one embodiment, step S103E includes the following steps E1 to E3.

E1. Comparing the length indication value that requires the eUICC to provide the updated range of USAT characteristics with the number of USAT commands specified;

E2. determining that the message validity verification is passed in response to the values of the two being the same;

E3. and responding to the difference of the values of the two values, and judging that the verification of the validity of the message fails.

In this embodiment, whether the message is valid is determined by whether the length indication value of the "USAT requirement" field in the "USAT requirement range" data object and the number of bits set to "1" in the "USAT requirement indication" field (i.e., the number of specified USAT commands) match in the response message to the first command, and if the two values are the same, the message is valid, and if the two values are different, the message is invalid.

In a specific embodiment, the step S103B of determining the support of the specified USAT command according to the USAT requirement indication includes the following steps B1 to B3.

B1. Determining USAT command characteristics of a support situation to be provided according to the USAT requirement indication;

B2. determining whether all USAT commands are supported after updating in response to characteristics of all USAT commands required to be supported by the current eUICC;

B3. in response to a characteristic of the partially defined USAT command requiring provision of current eUICC support, it is determined whether the partially defined USAT command is supported after updating.

In this embodiment, whether the eUICC currently supports the specified USAT command is provided in the manner of a "USAT feature indication" field, and when it is required to provide all USAT command features, all support cases of commands need to be provided, and when it is required to provide part of USAT command features, only support cases of USAT commands with the USAT requirement indication bit set to "1" are provided.

It should be noted that the order of the steps is only a specific example provided for illustrating the embodiments of the present invention, the present invention is not limited to the order of the steps, and those skilled in the art may adjust the order of the steps as required in practical applications; and the sequence number of the steps is not limited to the execution sequence.

Fig. 2 is a flow chart of another USAT characteristic updating method according to an embodiment of the present invention. The method is applied to a terminal, as shown in fig. 2, and includes the following steps S201 to S204.

S201, receiving a first command sent by the eUICC; the method comprises the steps that an eUICC responds to change of Profile of subscription data, generates a first command containing Profile management operation occurrence information and sends the first command to a terminal;

in this step, when the Profile is changed (e.g., the Profile is created and the Profile is deleted), an active command operated by the eUICC, i.e., a first command, initiates a USAT characteristic update procedure;

s202, determining the range and the content of the updated USAT characteristic required by the eUICC, generating a USAT requirement indication, and generating a response message of the first command based on the USAT requirement indication;

in this step, the range of USAT properties refers to the properties of all USAT commands supported by the current eUICC, or the properties of the partially defined USAT commands supported by the current eUICC; the content of the USAT characteristics refers to the characteristics of which USAT commands are specifically supported by the current eUICC; the structure of the response message of the first command may be as shown in the foregoing table 1;

s203, returning the response message of the first command to the eUICC, so that the eUICC receives the response message of the first command, acquires a USAT requirement indication, determines the support condition of the specified USAT command according to the USAT requirement indication, generates a USAT characteristic indication, generates a second command based on the USAT characteristic indication, and sends the second command to the terminal;

In this step, after the terminal indicates that the eUICC is required to further provide the updated USAT characteristic of the current eUICC through the response message of the first command, the eUICC sends the specified corresponding USAT command characteristic to the terminal through a second command according to the terminal requirement; the structure of the second command may be as shown in the aforementioned table 2;

s204, receiving the second command, and carrying out association processing on the USAT requirement indication and the USAT characteristic indication to determine the support condition of the specified USAT command.

In a specific embodiment, the following step S205 is further included after step S204.

S205, generating a response message of the second command based on the execution condition of the second command, and returning the response message of the second command to the eUICC.

In a specific embodiment, after step S201, the following step S206 is further included.

S206, judging whether the updated USAT characteristic of the eUICC needs to be acquired according to the self demand, if so, executing the step S202, namely executing the step of determining the range and the content of the updated USAT characteristic required to be provided by the eUICC; if not, generating a general response message of the first command based on the execution condition of the first command and returning to the eUICC.

In this embodiment, the terminal may further determine, according to its own requirement, whether to acquire the USAT characteristic of the updated eUICC, and execute the subsequent step only if the terminal needs it, or, according to a general processing manner, generate, based on the execution condition of the first command, a general response message of the first command, and return the response message to the eUICC.

In one embodiment, step S202 specifically includes the following steps S202a to S202c.

S202a, determining whether the eUICC is required to provide a Profile identifier which is currently enabled, and determining the range and the content of the updated USAT characteristic which are required to be provided by the eUICC;

s202b, generating a USAT request indication based on the range and the content of the USAT characteristic which are required to be updated and the Profile identifier which is required to be started currently and provided by the eUICC in response to the requirement that the eUICC provides the Profile identifier which is started currently, generating a response message of the first command based on the USAT request indication, so that the eUICC determines the support condition of the specified USAT command and the Profile identifier which is started currently according to the USAT request indication after receiving the response message of the first command generated based on the USAT request indication, and generating a USAT characteristic indication;

S202c, generating a USAT requirement indication based on the range and the content of the USAT characteristic, which are updated, of the request of the eUICC, generating a response message of the first command based on the USAT requirement indication, and enabling the eUICC to determine the support condition of the designated USAT command according to the USAT requirement indication after receiving the response message of the first command generated based on the USAT requirement indication.

Accordingly, after receiving the second command in step S204, the method further includes: the Profile identification currently being enabled is obtained.

In a specific embodiment, the associating processing of the USAT requirement indication and the USAT characteristic indication in step S204 includes:

In this embodiment, the terminal performs association processing on a "USAT requirement indication" field in the response message of the first command generated by the terminal and a "USAT characteristic indication" field in the second command sent by the eUICC, specifically performs association and comparison processing on a USAT requirement indication bit and a USAT characteristic indication bit, for example, performs calculation on a bit phase to obtain a specified USAT command characteristic, or reads a value of a corresponding USAT characteristic indication bit according to setting of the USAT requirement indication bit as "1", so as to obtain the specified USAT command characteristic, thereby determining a supporting condition of the specified USAT command.

Fig. 3 is a flowchart of another USAT characteristic updating method according to an embodiment of the present invention. As shown in fig. 3, the method includes the following steps S301 to S311.

S301, performing basic management operation of creating or deleting the Profile of the eUICC by the eSIM service platform through a remote management technology, and changing the Profile of the eUICC;

s302, the eUICC card sends the occurrence of Profile management operation to the terminal through a first command;

s303, after receiving the first command, the terminal analyzes the first command to obtain the occurrence of the Profile management operation and related information thereof, judges whether the updated USAT characteristic of the eUICC needs to be further obtained according to own requirements, if so, continues with the subsequent step, and if not, goes to the step S311;

s304, the terminal determines whether the eUICC is required to provide a Profile identifier which is currently enabled, the USAT characteristic is required to provide all or part of the characteristic of limiting the command, then generates a USAT requirement indication, further generates a response message of the first command according to the USAT requirement indication and sends the response message to the eUICC, the response message is required to provide updated USAT characteristic according to requirements except for a feedback command execution result, the response message structure is shown in the table 1, and the USAT requirement indication bit is required to be temporarily stored for subsequent processing;

S305, after receiving the response message of the first command, the eUICC analyzes the response message to obtain the requirement that the terminal requires the eUICC to provide updated USAT characteristics, and meanwhile, verifies the validity of the message for the condition that part of USAT characteristics are required to be provided, and judges whether the message is valid or not according to the fact that the length indication value of the USAT requirement range in the USAT requirement data object and the number of bits set as 1 in the USAT requirement indication are consistent or not in the USAT requirement data object in table 1, if the number of the two are the same, the message is valid, the follow-up steps are continued, if the two are different, the condition that the terminal has errors about the requirement of providing the USAT characteristics is indicated, the message is invalid, the verification fails, and the flow is ended;

s306, determining USAT command characteristics of a supporting situation to be provided according to the requirements of a response message of a first command, if the response message requires the characteristics of all USAT commands to be provided, determining whether all USAT commands are supported after updating, if the response message requires the characteristics of a part of defined USAT commands to be provided, determining whether a specified USAT command is supported after updating, and if the response message simultaneously requires the Profile identification which is currently enabled to be provided, determining the Profile identification which is currently enabled;

s307, the eUICC generates a second command for providing the USAT characteristic according to the content and sends the second command to the terminal, wherein the command structure is shown in the table 2;

S308, after receiving the second command, the terminal analyzes the second command, and determines that the second command requires to provide USAT characteristics to the terminal, the second command possibly provides Profile identifiers which are currently started after the eUICC is updated, and if the Profile identifiers exist, the Profile identifiers are firstly obtained;

s309, the terminal acquires a USAT characteristic indicating bit in the second command, and performs association and comparison processing with the USAT requirement indicating bit stored in the step S304, for example, the assigned USAT command characteristic is obtained by performing calculation of a bit phase or the value of the corresponding USAT characteristic indicating bit is read according to the setting of the USAT requirement indicating bit as '1', and the assigned USAT command characteristic can be obtained as well, so that the supporting condition of the assigned USAT command is determined;

s310, the terminal returns a response message of the second command to the eUICC according to the execution condition of the second command;

s311, the terminal generates a general response message of command execution according to the execution condition of the first command and returns the general response message to the eUICC.

According to the USAT characteristic updating method provided by the embodiment of the invention, on the basis of supporting the active command of the eUICC about Profile operation, the terminal can further provide the updated USAT characteristic and capability of the current eUICC according to the requirement, so that the eUICC can grasp the influence of the Profile change of the eUICC on the USAT attribute, and the support state and degree of the eUICC with updated state on the USAT capability, thereby the terminal is better suitable for the characteristic of the form of the eUICC card, the content synchronization of the eUICC remote management is more comprehensive and specific, and preconditions and mechanism guarantee are provided for the terminal to better support the USAT function.

Fig. 4 is a schematic structural diagram of an eUICC provided in an embodiment of the present invention. As shown in fig. 4, the eUICC includes: a first command generation module 401, a first transmission module 402, a first reception module 403, and a second command generation module 404.

Wherein the first command generating module 401 is configured to generate a first command including a Profile management operation occurrence message in response to a change of the Profile of the subscription data; the first sending module 402 is configured to send the first command to the terminal, so that the terminal determines, after receiving the first command, a range and content that require the eUICC to provide updated USAT characteristics, generates a USAT requirement indication, and generates a response message of the first command based on the USAT requirement indication and returns to the eUICC; the first receiving module 403 is configured to receive a response message of the first command, and obtain a USAT requirement indication; the second command generation module 404 is configured to determine a support case for the specified USAT command based on the USAT requirement indication, generate a USAT characteristic indication, and generate a second command based on the USAT characteristic indication; the first sending module 402 is further configured to send the second command to the terminal, so that the terminal, after receiving the second command, processes the USAT requirement indication and the USAT characteristic indication in an associated manner to determine a support condition of the specified USAT command.

In a specific embodiment, the first receiving module 403 is further configured to receive a response message of the second command; and the terminal generates a response message of the second command based on the execution condition of the second command and returns the response message to the eUICC.

In a specific embodiment, the second command generating module 404 is further configured to determine, according to the USAT requirement indication, a Profile identifier that is currently being enabled, and generate a USAT characteristic indication based on the specified supporting situation of the USAT command and the Profile identifier that is currently being enabled, so that the terminal obtains the Profile identifier that is currently being enabled after receiving the second command generated based on the USAT characteristic indication; and the terminal also determines whether the eUICC is required to provide the Profile identifier which is currently started after receiving the first command, and if so, generates a USAT requirement indication based on the range and the content of the updated USAT characteristic required to be provided by the eUICC and the Profile identifier which is required to be started currently.

In a specific embodiment, the eUICC further comprises: and a verification module.

The verification module is configured to perform message validity verification on the response message of the first command. The second command generating module 404 is specifically configured to determine the support condition of the specified USAT command according to the USAT requirement indication when the verification module verifies the validity of the message. Of course, if the validation of the validation module fails, no subsequent workflow is performed.

In one embodiment, the verification module is specifically configured to:

comparing the length indication value that requires the eUICC to provide the updated range of USAT characteristics with the number of USAT commands specified; if the two values are the same, judging that the message validity verification is passed; if the two values are different, the message validity verification is judged to be failed.

In one embodiment, the second command generation module 404 is specifically configured to:

Fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in fig. 5, the terminal includes: a second receiving module 501, a first response message generating module 502, a second sending module 503 and an association processing module 504.

Wherein, the second receiving module 501 is configured to receive a first command sent by the eUICC; the method comprises the steps that an eUICC responds to change of Profile of subscription data, generates a first command containing Profile management operation occurrence information and sends the first command to a terminal; the first response message generation module 502 is configured to determine a range and content that requires the eUICC to provide updated USAT characteristics, generate a USAT requirements indication, and generate a response message for the first command based on the USAT requirements indication; the second sending module 503 is configured to return a response message of the first command to the eUICC, so that the eUICC receives the response message of the first command, obtains a USAT requirement indication, determines a support condition of a specified USAT command according to the USAT requirement indication, generates a USAT characteristic indication, generates a second command based on the USAT characteristic indication, and sends the second command to the terminal; the second receiving module 501 is further configured to receive the second command; the association processing module 504 is configured to associate the USAT requirement indication with the USAT characteristic indication to determine support for the specified USAT command.

In a specific embodiment, the terminal further includes: and a second response message generation module.

The second response message generation module is configured to generate a response message of the second command based on the execution condition of the second command; the second sending module 503 is further configured to return a response message of the second command to the eUICC.

In a specific embodiment, the terminal further includes: and a judging module.

The judging module is configured to judge whether the updated USAT characteristic of the eUICC needs to be obtained according to the self-requirement. The first response message generating module 502 is specifically configured to, when the determination result of the determining module is that the updated USAT characteristic of the eUICC needs to be obtained, determine a range and content that require the eUICC to provide the updated USAT characteristic.

In a specific embodiment, the first response message generating module 502 is further configured to determine whether the eUICC is required to provide the Profile identifier that is currently being enabled, and generate a USAT requirement indication based on a range and content of the updated USAT characteristic required to be provided by the eUICC and the Profile identifier required to be currently enabled when the eUICC is required to provide the Profile identifier that is currently being enabled, so that the eUICC determines a support case of a specified USAT command and the Profile identifier that is currently being enabled according to the USAT requirement indication after receiving the response message of the first command generated based on the USAT requirement indication, and generates the USAT characteristic indication. The second receiving module 501 is further configured to obtain a Profile identifier currently being enabled after receiving the second command.

In one embodiment, the association processing module 504 is specifically configured to:

Fig. 6 is a schematic structural diagram of a USAT characteristic updating system according to an embodiment of the present invention. As shown in fig. 6, the USAT characteristic update system includes an eUICC601 and a terminal 602.

The eUICC601 may adopt the specific structure of the eUICC in the foregoing embodiments; the specific structure of the terminal 602 in the foregoing embodiment may be adopted, and will not be described herein.

Based on the same technical concept, the embodiment of the present invention correspondingly provides a computer device, as shown in fig. 7, where the computer device includes a memory 71 and a processor 72, where the memory 71 stores a computer program, and when the processor 72 runs the computer program stored in the memory 71, the processor 72 executes the USAT characteristic updating method.

Based on the same technical concept, the embodiment of the invention correspondingly provides a computer readable storage medium, on which a computer program is stored, wherein when the computer program is executed by a processor, the processor executes the USAT characteristic updating method.

In summary, according to the method, the system, the computer device and the storage medium for updating the USAT characteristics provided by the embodiments of the present invention, aiming at the situation that the USAT characteristics may change after the eUICC remotely manages the basic operation, and the terminal can only acquire the basic operation information of the Profile and cannot further acquire the updated USAT characteristic information, the scheme that the terminal further provides the updated USAT characteristics through the response message of the active command and the new capability of the eUICC on the basis of synchronizing the basic operation of the eUICC is provided. The proposal formulates an upgrade response message and a command between the newly added terminal and the eUICC card based on the thought, including command functions, structure, parameter definition and the like, and prescribes the flow steps and rule requirements of interaction between the terminal and the UICC card.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A global user identity module application toolbox USAT feature updating method, characterized in that it is applied to an embedded universal integrated circuit card eUICC, the method comprising:

2. The method of claim 1, further comprising, after receiving the response message of the first command:

the generating USAT characteristic indication specifically includes:

3. The method according to claim 1 or 2, further comprising, after receiving the response message of the first command:

4. A method according to claim 3, wherein verifying the message validity of the response message of the first command comprises:

5. A method according to claim 1 or 2, wherein determining the support of the specified USAT command based on the USAT requirement indication comprises:

6. A USAT characteristic updating method, applied to a terminal, comprising:

7. The method of claim 6, further comprising, after receiving the first command sent by the eUICC:

8. The method of claim 6, further comprising, after receiving the first command sent by the eUICC:

the generating USAT requirement indication specifically includes:

the Profile identification currently being enabled is obtained.

9. The method according to any of claims 6-8, wherein the correlating USAT requirement indication and USAT characteristic indication comprises:

10. An eUICC, comprising:

11. A terminal that interacts with an eUICC, comprising:

12. A computer device comprising a memory and a processor, the memory having a computer program stored therein, which when executed by the processor performs the USAT characteristic updating method according to any one of claims 1 to 5, or the USAT characteristic updating method according to any one of claims 6 to 9.

13. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, performs the USAT characteristic updating method according to any one of claims 1 to 5, or the USAT characteristic updating method according to any one of claims 6 to 9.