Method, terminal, usim and medium for customizing epdg information synchronization

Abstract

The application provides an ePDG information customization synchronization method, a terminal, a USIM and a medium, relates to the technical field of communication, and is used for solving the problem that the ePDG information customization synchronization cannot be realized between a USIM and a terminal in the prior art, and the method comprises the following steps: acquiring current ePDG selection behavior information; judging whether the ePDG selection behavior information satisfies a customized ePDG information synchronization condition; if yes, sending the ePDG selection behavior information to a universal subscriber identity module (USIM) so that the USIM acquires customized ePDG selection behavior information. The application realizes the customization synchronization of the ePDG selection behavior information between the terminal and the USIM, and improves the maneuverability and flexibility of the ePDG information synchronization between the terminal and the USIM.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method for customized synchronization of ePDG information, a terminal, a USIM, and a computer-readable storage medium. Background Technology

[0002] USIM plays a fundamental role in the terminal's ePDG selection process, such as providing ePDG configuration information. In real-world applications, USIM's needs for ePDG selection behavior information can be complex or diverse. For example, USIM may need to verify its own configuration information and require the terminal to synchronize information related to abnormal ePDG selection behavior to confirm whether the configuration information is appropriate or needs adjustment.

[0003] However, the terminal currently does not support USIM's requests for modifications to ePDG based on its own wishes.

[0004] The customized requirements for synchronizing behavioral information mean that, for certain ePDG selection scenarios, it is difficult for USIM to synchronize only specific relevant information. This may lead to USIM having to synchronize all relevant information first and then filter specific information, which obviously reduces the efficiency of information synchronization and wastes machine-card interaction resources. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings of the prior art by providing a method for customized synchronization of ePDG information, a terminal, a USIM, and a computer-readable storage medium, so as to solve the problem that customized synchronization of ePDG information cannot be achieved between the USIM and the terminal in the prior art.

[0006] In a first aspect, the present invention provides a method for customized synchronization of Evolved Packet Data Gateway (ePDG) information, applied to a terminal, the method comprising:

[0007] Obtain current ePDG selection behavior information;

[0008] Determine whether the ePDG selection behavior information meets the customized ePDG information synchronization conditions;

[0009] If so, the ePDG selection behavior information is sent to the Universal User Identification Module (USIM) so that the USIM can obtain customized ePDG selection behavior information.

[0010] Optionally, before determining whether the ePDG selection behavior information meets the customized ePDG information synchronization conditions, the method further includes:

[0011] Send terminal capability configuration information to USIM;

[0012] Receive a customized ePDG information synchronization command from USIM, the customized ePDG information synchronization command being sent by USIM according to the terminal capability configuration information;

[0013] The customized ePDG information synchronization conditions are obtained according to the customized ePDG information synchronization command.

[0014] Optionally, obtaining the customized ePDG information synchronization conditions according to the customized ePDG information synchronization command specifically includes:

[0015] The customized ePDG information synchronization command is parsed to obtain the limited type and limited conditions for sending ePDG selection behavior information specified by USIM;

[0016] Obtain the customized ePDG information synchronization conditions specified by USIM based on the defined type and defined conditions.

[0017] Optionally, obtaining the customized ePDG information synchronization conditions specified by USIM based on the defined type and defined conditions specifically includes:

[0018] If the specified limitation type specifies that all ePDG selected behavior information is synchronized, then the customized ePDG information synchronization condition specified by USIM is to synchronize all ePDG selected behavior information.

[0019] If the specified constraint type specifies that the ePDG selection behavior information synchronization is limited, then the first customized ePDG information synchronization condition specified by USIM is obtained according to the specified constraint condition.

[0020] Optionally, obtaining the first customized ePDG information synchronization condition specified by USIM according to the limiting conditions specifically includes:

[0021] If the number of the limiting conditions is one, then obtain a first customized ePDG information synchronization condition specified by USIM.

[0022] If there are multiple limiting conditions, the relationship between the multiple limiting conditions is obtained, and the multiple limiting conditions are combined according to the relationship between the multiple limiting conditions to obtain the first customized ePDG information synchronization condition specified by USIM.

[0023] Optionally, the limiting conditions include: limiting ePDG, limiting public land mobile network (PLMN), and / or limiting connection results;

[0024] The relationship between the multiple limiting conditions includes: sending the corresponding ePDG selection behavior information when any one limiting condition is met, or sending the corresponding ePDG selection behavior information when all multiple limiting conditions are met.

[0025] Optionally, after obtaining the first customized ePDG information synchronization conditions specified by USIM according to the aforementioned limiting conditions, the method further includes:

[0026] If the defined type also specifies a second customized ePDG information synchronization condition to replace the previous one, then the first customized ePDG information synchronization condition obtained is the customized ePDG information synchronization condition specified by USIM.

[0027] If the specified type specifies that the second customized ePDG information synchronization condition should not be replaced, then the first customized ePDG information synchronization condition and the second customized ePDG information synchronization condition obtained are the customized ePDG information synchronization conditions specified by USIM.

[0028] Secondly, this invention provides a method for customized synchronization of evolved packet data gateway (ePDG) information, applied to a universal user identification module (USIM), the method comprising:

[0029] Receive ePDG selection behavior information from the terminal, the ePDG selection behavior information being sent by the terminal after determining that the current ePDG selection behavior information meets the customized ePDG information synchronization conditions;

[0030] Based on the ePDG selection behavior information, the user obtains its own customized ePDG selection behavior information.

[0031] Optionally, before receiving ePDG selection behavior information from the terminal, the method further includes:

[0032] Receive terminal capability configuration information from the terminal;

[0033] A customized ePDG information synchronization command is sent to the terminal according to the terminal capability configuration information, so that the terminal can obtain the customized ePDG information synchronization conditions according to the customized ePDG information synchronization command.

[0034] Optionally, sending a customized ePDG information synchronization command to the terminal based on the terminal capability configuration information specifically includes:

[0035] The terminal capability configuration information is parsed to obtain the degree of support of the terminal for synchronizing limited ePDG selection behavior information, including: whether it supports ePDG selection behavior information synchronization and whether it supports limited ePDG selection behavior information synchronization.

[0036] The customized ePDG information synchronization command is generated based on the level of support, including: the limited type and limited conditions for sending ePDG selection behavior information specified by USIM;

[0037] Send the customized ePDG information synchronization command to the terminal.

[0038] Optionally, generating the customized ePDG information synchronization command based on the level of support specifically includes:

[0039] If the terminal does not support ePDG selection behavior information synchronization, the customized ePDG information synchronization command will not be generated.

[0040] If the terminal does not support the synchronization of limited ePDG selected behavior information, a first customized ePDG information synchronization command is generated, which includes: the limited type specifies the synchronization of all ePDG selected behavior information;

[0041] If the terminal supports limited ePDG selection behavior information synchronization, a second customized ePDG information synchronization command is generated, which includes: the limited type specifies limited ePDG selection behavior information synchronization.

[0042] Optionally, if the terminal supports limiting ePDG selection behavior information synchronization, the method further includes:

[0043] Determine the limiting conditions for your customized ePDG selection behavior information based on your own needs.

[0044] If the number of the limiting conditions is one, then one of the limiting conditions is added to the second customized ePDG information synchronization command;

[0045] If there are multiple limiting conditions, then multiple limiting conditions and their relationships are added to the second customized ePDG information synchronization command.

[0046] Optionally, the limiting conditions include: limiting ePDG, limiting public land mobile network (PLMN), and / or limiting connection results;

[0047] The relationship between the multiple limiting conditions includes: sending the corresponding ePDG selection behavior information when any one limiting condition is met, or sending the corresponding ePDG selection behavior information when all multiple limiting conditions are met.

[0048] Optionally, if the terminal supports limiting ePDG selection behavior information synchronization, the method further includes:

[0049] Determine whether to instruct the terminal to replace the previous second customized ePDG information synchronization conditions based on its own needs;

[0050] If a replacement is determined, specify the second customized ePDG information synchronization condition prior to the replacement in the defined type;

[0051] If it is determined not to replace, specify a second customized ePDG information synchronization condition before not replacing in the defined type.

[0052] Thirdly, the present invention provides a terminal, the terminal comprising:

[0053] The first acquisition module is used to acquire the current selection behavior information of the evolved packet data gateway (ePDG).

[0054] The first judgment module, connected to the first acquisition module, is used to determine whether the ePDG selection behavior information meets the customized ePDG information synchronization conditions.

[0055] The first sending module, connected to the first judging module, is used to send the ePDG selection behavior information to the Universal User Identification Module (USIM) if the condition is met, so that the USIM can obtain customized ePDG selection behavior information.

[0056] Fourthly, the present invention provides a Universal User Identification Module (USIM), the USIM comprising:

[0057] The second receiving module is used to receive Evolved Packet Data Gateway (ePDG) selection behavior information from the terminal. The ePDG selection behavior information is sent by the terminal after determining that the current ePDG selection behavior information meets the customized ePDG information synchronization conditions.

[0058] The second acquisition module, connected to the second receiving module, is used to acquire its own customized ePDG selection behavior information based on the ePDG selection behavior information.

[0059] Fifthly, the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the Evolved Packet Data Gateway (ePDG) information customization synchronization method as described above.

[0060] This invention provides a method for customized ePDG information synchronization, a terminal, a USIM, and a computer-readable storage medium. After executing an ePDG selection action, the terminal sends ePDG selection action information that meets the conditions for customized ePDG information synchronization to the USIM. The USIM can then obtain the customized ePDG selection action information, achieving customized synchronization of ePDG selection action information between the terminal and the USIM. This improves the mobility and flexibility of ePDG information synchronization between the terminal and the USIM, avoids the interaction of all ePDG selection action information when unnecessary, and simplifies the amount of data exchanged as needed. It enhances the service quality of ePDG selection synchronization configuration in a simpler, more efficient, and resource-optimized manner. Attached Figure Description

[0061] Figure 1 This is a flowchart of an ePDG information customization and synchronization method according to an embodiment of the present invention;

[0062] Figure 2 This is a schematic diagram of the structure of terminal capability configuration information according to an embodiment of the present invention;

[0063] Figure 3 This is another flowchart of customized ePDG information synchronization according to an embodiment of the present invention;

[0064] Figure 4 This is a flowchart of another embodiment of the ePDG information customization and synchronization.

[0065] Figure 5 This is a schematic diagram of the structure of a terminal according to an embodiment of the present invention;

[0066] Figure 6 This is a schematic diagram of the structure of a USIM according to an embodiment of the present invention. Detailed Implementation

[0067] To enable those skilled in the art to better understand the technical solution of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0068] It is understood that the specific embodiments and accompanying drawings described herein are merely for explaining the invention and are not intended to limit the invention.

[0069] It is understood that, without conflict, the various embodiments and features in the embodiments of the present invention can be combined with each other.

[0070] It is understood that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, while the parts unrelated to the present invention are not shown in the drawings.

[0071] It is understood that each unit or module involved in the embodiments of the present invention may correspond to only one entity structure, or may be composed of multiple entity structures, or multiple units or modules may be integrated into one entity structure.

[0072] It is understood that, without conflict, the functions and steps marked in the flowcharts and block diagrams of this invention may occur in a different order than that marked in the accompanying drawings.

[0073] It is understood that the flowcharts and block diagrams of this invention illustrate the possible architecture, functions, and operations of systems, apparatuses, devices, and methods according to various embodiments of the invention. Each block in the flowchart or block diagram may represent a unit, module, program segment, or code, containing executable instructions for implementing the specified function. Furthermore, each block or combination of blocks in the block diagram and flowchart can be implemented using a hardware-based system to achieve the specified function, or using a combination of hardware and computer instructions.

[0074] It is understood that the units and modules involved in the embodiments of the present invention can be implemented by software or by hardware. For example, the units and modules can be located in a processor.

[0075] To facilitate understanding of this invention, ePDG and USIM will be introduced first.

[0076] An ePDG (Evolving Packet Data Gateway) is a unit that interfaces between SAE (System Architecture Evolution) and untrusted 3GPP (3rd Generation Partnership Project) IP (Internet Protocol) systems. It is a secure terminal node that establishes an IPsec (Internet Protocol Security) tunnel with the terminal. Terminals accessing untrusted WLAN (Wireless Local Area Networks) and other networks can securely access PDN (Public Data Network) through ePDG. During this access process, the terminal needs to select an ePDG, which is fundamental to terminal access and can be complex, especially in certain special scenarios (such as terminal roaming). Information for selecting an ePDG can be configured in the UE (User Equipment). Specifically, ePDG information can also be configured in the USIM (Universal Subscriber Identity Module). This information typically includes the ePDG identifier, the PLMN (Public Land Mobile Network) to which the ePDG belongs, and the priority of selecting the ePDG. This information is stored in the basic USIM file. The UE operates according to these configurations during the ePDG selection process to select the appropriate ePDG access service.

[0077] The USIM card is a continuation and advancement of the SIM card used in the UMTS (Universal Mobile Telecommunications System) network. It stores user identity information and personal data, ensuring secure access to mobile network services. It can utilize necessary functions and data to perform user identification and authorization when users access mobile network services, enabling the mobile network to represent and identify user application requirements. The USAT (USIM Application Toolkit) protocol is a service mechanism supported by USIM, implemented on top of services provided by the transport layer. It changes the original passive position of USIM relative to the terminal, which could only passively execute terminal commands and could not actively make command requests to the terminal. USAT allows USIM applications to interact and operate with terminals that support this mechanism, enabling USIM to actively request the terminal to perform certain operations. USAT is the foundation and primary method for telecom smart cards to implement services through terminals.

[0078] Based on the USAT mechanism, the ePDG service capabilities between the terminal and the USIM can also be enhanced. For example, when the terminal selects an ePDG, it can provide the ePDG selection and connection-related behaviors and results (including ePDG selection and connection, ePDG connection rejection, ePDG connection no response, etc.) to the USIM through the USAT mechanism. This completes the synchronization of ePDG selection behavior information between the terminal and the USIM, enabling the USIM to keep track of the status and progress of ePDG service configuration, thereby further improving the ePDG configuration. However, existing technologies lack methods for synchronizing ePDG selection behavior information between the terminal and the USIM, and even more so, lack methods for customized synchronization of ePDG selection behavior information between the terminal and the USIM.

[0079] Therefore, this invention proposes a method for USIM to provide customized ePDG selection behavior information synchronization to terminals based on its own business needs, so as to improve the mobility and flexibility of ePDG information synchronization between terminals and USIM and enhance the initiative of USIM in business.

[0080] Example 1:

[0081] like Figure 1 As shown, this invention provides a method for customized synchronization of Evolved Packet Data Gateway (ePDG) information, applied to a terminal. The method includes:

[0082] S11. Obtain the current ePDG selection behavior information;

[0083] S12. Determine whether the ePDG selection behavior information meets the customized ePDG information synchronization conditions;

[0084] S13. If so, send the ePDG selection behavior information to the Universal User Identification Module (USIM) so that the USIM can obtain the customized ePDG selection behavior information.

[0085] Specifically, in the ePDG information customization synchronization method of this embodiment 1, after the terminal performs the ePDG selection connection behavior, it sends the ePDG selection behavior information that meets the conditions for customized ePDG information synchronization to the USIM. The ePDG selection behavior information includes the ePDG selected by the terminal when performing the ePDG selection connection behavior and the connection result of the ePDG. Thus, the USIM can obtain the ePDG selection behavior information customized by the USIM itself to the terminal, realize the customized synchronization of ePDG selection behavior information between the terminal and the USIM, improve the mobility and flexibility of ePDG information synchronization between the terminal and the USIM, avoid the interaction of all ePDG selection behavior information when it is not necessary, and simplify the amount of data exchanged according to needs, thereby improving the service quality of ePDG selection synchronization configuration in a simpler, more efficient and resource-optimized way.

[0086] Optionally, before determining whether the ePDG selection behavior information meets the customized ePDG information synchronization conditions, the method further includes:

[0087] Send terminal capability configuration information to USIM;

[0088] Receive a customized ePDG information synchronization command from USIM, the customized ePDG information synchronization command being sent by USIM according to the terminal capability configuration information;

[0089] The customized ePDG information synchronization conditions are obtained according to the customized ePDG information synchronization command.

[0090] Specifically, in this embodiment 1, the USIM can request the acquisition of ePDG selection behavior information, requiring the terminal to determine customized ePDG information synchronization conditions according to the USIM's request. This allows the terminal to send only the USIM-customized ePDG selection behavior information, changing the current situation where the USIM can only passively receive the terminal's ePDG selection behavior. The USIM can specifically specify the scope or type of ePDG selection behavior information to be sent. Since the implementation of this requirement requires the terminal to support sending customized ePDG selection behavior information, this capability needs to be defined in the terminal first. The USIM then determines whether it can request the sending of customized ePDG selection behavior information based on whether the terminal has the corresponding capability. The terminal can indicate its current level of support for sending customized ePDG selection behavior information by extending the Terminal Capability Configuration Information (Terminal Profile). An example of the Terminal Profile format is shown below. Figure 2 As shown, bits 1 (b1) and 2 (b2) of the 26th byte reserved bits can be enabled. For example, b1 indicates whether the terminal supports ePDG selection behavior information synchronization, b1=0 indicates no support, b1=1 indicates support, while b2 only takes effect when b1=1, indicating whether the terminal supports limited ePDG selection behavior information synchronization, b2=0 indicates no support, b2=1 indicates support, and the remaining bits (b3-b8) can be reserved. For example, when b1b2=11, it tells USIM that when business needs require it, it can use an active command to request the terminal to synchronize only the ePDG selection behavior information of a limited range or type, and there is no need to synchronize information for other ePDG selection behaviors.

[0091] Optionally, obtaining the customized ePDG information synchronization conditions according to the customized ePDG information synchronization command specifically includes:

[0092] The customized ePDG information synchronization command is parsed to obtain the limited type and limited conditions for sending ePDG selection behavior information specified by USIM;

[0093] Obtain the customized ePDG information synchronization conditions specified by USIM based on the defined type and defined conditions.

[0094] Specifically, in this embodiment 1, after receiving terminal capability configuration information from the terminal, the USIM sends a customized ePDG information synchronization command to the terminal based on the terminal capability configuration information. This includes: parsing the terminal capability configuration information to obtain the terminal's support level for synchronizing limited ePDG selection behavior information, including whether it supports ePDG selection behavior information synchronization and whether it supports limited ePDG selection behavior information synchronization; generating a customized ePDG information synchronization command based on the support level, including the limited type and limited conditions for sending ePDG selection behavior information specified by the USIM; and sending the customized ePDG information synchronization command to the terminal.

[0095] Optionally, obtaining the customized ePDG information synchronization conditions specified by USIM based on the defined type and defined conditions specifically includes:

[0096] If the specified limitation type specifies that all ePDG selected behavior information is synchronized, then the customized ePDG information synchronization condition specified by USIM is to synchronize all ePDG selected behavior information.

[0097] If the specified constraint type specifies that the ePDG selection behavior information synchronization is limited, then the first customized ePDG information synchronization condition specified by USIM is obtained according to the specified constraint condition.

[0098] Specifically, in this embodiment 1, the USIM generates a customized ePDG information synchronization command, which includes: if the terminal does not support ePDG selection behavior information synchronization, then no customized ePDG information synchronization command is generated; if the terminal does not support limited ePDG selection behavior information synchronization, then a first customized ePDG information synchronization command is generated, which includes: specifying all ePDG selection behavior information synchronization by the limitation type; if the terminal supports limited ePDG selection behavior information synchronization, then a second customized ePDG information synchronization command is generated, which includes: specifying limited ePDG selection behavior information synchronization by the limitation type.

[0099] Optionally, obtaining the first customized ePDG information synchronization condition specified by USIM according to the limiting conditions specifically includes:

[0100] If the number of the limiting conditions is one, then obtain a first customized ePDG information synchronization condition specified by USIM.

[0101] If there are multiple limiting conditions, the relationship between the multiple limiting conditions is obtained, and the multiple limiting conditions are combined according to the relationship between the multiple limiting conditions to obtain the first customized ePDG information synchronization condition specified by USIM.

[0102] Specifically, in this embodiment 1, if the terminal supports the synchronization of ePDG selection behavior information, then USIM performs the following: determining the limiting conditions for its own customized ePDG selection behavior information according to its own needs; if the number of limiting conditions is one, then adding the one limiting condition to the second customized ePDG information synchronization command; if the number of limiting conditions is multiple, then adding the multiple limiting conditions and the relationship between the multiple limiting conditions to the second customized ePDG information synchronization command.

[0103] Optionally, the limiting conditions include: limiting ePDG, limiting public land mobile network (PLMN), and / or limiting connection results;

[0104] The relationship between the multiple limiting conditions includes: sending the corresponding ePDG selection behavior information when any one limiting condition is met, or sending the corresponding ePDG selection behavior information when all multiple limiting conditions are met.

[0105] Optionally, after obtaining the first customized ePDG information synchronization conditions specified by USIM according to the aforementioned limiting conditions, the method further includes:

[0106] If the defined type also specifies a second customized ePDG information synchronization condition to replace the previous one, then the first customized ePDG information synchronization condition obtained is the customized ePDG information synchronization condition specified by USIM.

[0107] If the specified type specifies that the second customized ePDG information synchronization condition should not be replaced, then the first customized ePDG information synchronization condition and the second customized ePDG information synchronization condition obtained are the customized ePDG information synchronization conditions specified by USIM.

[0108] Specifically, in this embodiment 1, if the terminal supports limited ePDG selection behavior information synchronization, then the USIM performs the following: determines whether to instruct the terminal to replace the previous second customized ePDG information synchronization condition according to its own needs; if it determines to replace, it specifies the previous second customized ePDG information synchronization condition in the limited type; if it determines not to replace, it specifies the previous second customized ePDG information synchronization condition in the limited type.

[0109] Specifically, in this embodiment 1, after receiving the customized ePDG information synchronization command from the USIM, the terminal can determine whether it can process the ePDG selection behavior event according to the USIM requirements based on its own situation, and then feed back the ePDG selection behavior information to the USIM through the USAT mechanism between the terminal and the USIM. If the terminal can execute according to the USIM requirements, then after subsequent ePDG selection behavior events, only event information that meets the specified requirements will be synchronized to the USIM. In order to support the USIM to impose specified requirements on the synchronization of terminal ePDG selection behavior information, a new proactive command (customized ePDG information synchronization command) needs to be added to the USIM. This command can also be based on the USAT mechanism, and its main function is to propose the specified conditions that the ePDG selection behavior information synchronization must meet to the terminal according to the current customized requirements of the USIM. The command can be named Qualified ePDG Selection, and its specific definition is shown in Table 1 below:

[0110] Table 1. Example of a customized ePDG information synchronization command structure

[0111]

[0112]

[0113] In Table 1, the command qualifier indicates the type of qualifier for sending ePDG selection behavior information specified by the command. c1 indicates whether the required synchronization range of ePDG selection behavior information is all or limited. If it's all, it means the terminal is required to synchronize all ePDG selection behavior information, and c2 and c3 are invalid. If it's limited, it means the terminal is required to synchronize some ePDG selection behavior information that meets the qualifier conditions, and c2 must exist. c2 indicates whether there is one or more qualifiers when requiring synchronization of ePDG selection behavior information within a limited range. If there is only one, it means the terminal synchronizes ePDG selection behavior information that meets the uniquely specified requirement, and c3 is invalid. If there are multiple qualifiers, it means the terminal synchronizes ePDG selection behavior information that meets multiple specified requirements, and c3 must exist. c3 indicates whether the required synchronization range of ePDG selection behavior information is limited. Under the premise that the selected behavior information is subject to multiple conditions, the relationship between the multiple conditions is as follows: if any one condition is met, it means that the ePDG selected behavior information that meets any one of the multiple conditions is synchronized; if all the conditions are met, it means that the ePDG selected behavior information that meets all the conditions is synchronized. c4 indicates whether the current command requires whether to replace the previous similar command (that is, replace the ePDG information synchronization conditions previously obtained by the terminal). If not, it means that it does not replace the previous command and coexists with the previous command. In addition to synchronizing the ePDG selected behavior information required by the previous command, it also adds the synchronization of the ePDG selected behavior information required by the current command. If yes, it means that it replaces the previous command. When the current command takes effect, the previous command becomes invalid. The ePDG selected behavior information required by the previous command is no longer synchronized, but instead the ePDG selected behavior information required by the current command is synchronized. The ePDG ID is an optional data object representing the limited ePDGs for synchronizing ePDG selection behavior information. That is, only when the selected ePDGs perform the connection behavior does the corresponding information need to be synchronized. The PLMN list is an optional data object representing the limited PLMN range for synchronizing ePDG selection behavior information. That is, only the corresponding information of ePDGs within the selected PLMN range needs to be synchronized. The connection result is an optional data object representing the limited connection result type for synchronizing ePDG selection behavior information. That is, only when the connection result of the selected ePDG behavior is within the range does the information need to be synchronized. These three optional data objects represent the limiting conditions for sending ePDG selection behavior information specified by the command. They should not exist when the command qualifier indicates that all ePDG selection behavior information should be synchronized. The number of optional data objects should match the indication in c2 of the command qualifier. When more than one optional data object exists, the relationship between them is indicated by c3 of the command qualifier.By combining the command qualifier and the three optional data objects mentioned above, the final customized ePDG information synchronization conditions can be obtained, which indicate the restrictions on the synchronization of ePDG selection behavior information in one or more aspects. For example, when an action of selecting an ePDG for connection occurs and the selection connection is rejected, the ePDG selection behavior information is synchronized, or when an ePDG within a PLMN selects a connection, the ePDG selection behavior information is synchronized, etc.

[0114] A more specific example is as follows Figure 3 As shown, after defining the terminal capability configuration information and the customized ePDG information synchronization command, the specific process that can be executed in this embodiment 1 includes:

[0115] S001. The terminal sends its own capability configuration information to the USIM so that the USIM can know the terminal's capability configuration information and make customized requests for sending ePDG selection behavior information based on the terminal's capability configuration information.

[0116] S002. USIM obtains terminal capability configuration information, and USIM parses the terminal capability configuration information to determine whether the terminal supports sending customized ePDG selection behavior information.

[0117] S003. USIM generates a need to customize and synchronize ePDG selection behavior information. USIM can determine the limiting conditions for its own customized ePDG selection behavior information and whether it needs to replace the previous customization requirements based on its own needs.

[0118] S004. USIM generates a customized ePDG information synchronization command and sends it to the terminal. The command can request the terminal to send information on all ePDG selection behaviors, or it can request the sending of information on some specified ePDG selection behaviors.

[0119] S005. The terminal parses the command and obtains the restriction type and restriction conditions for sending ePDG selection behavior information specified by the USIM.

[0120] S006. The terminal determines whether there are multiple limiting conditions. If yes, execute S007-S009. If no, jump to execute S009.

[0121] S007, The terminal obtains the relationship between multiple limiting conditions;

[0122] S008. The terminal combines multiple limiting conditions based on the relationship;

[0123] S009. The terminal obtains an indication of whether to replace the previous conditions and determines the final conditions. The terminal needs to obtain the customized ePDG information synchronization conditions specified by USIM as the final conditions.

[0124] S010, The terminal performs an ePDG selection action and obtains the ePDG selection action information;

[0125] S011. The terminal determines whether the ePDG selection behavior information meets the final conditions. If yes, execute S012-S013; otherwise, execute S014.

[0126] S012, The terminal sends ePDG selection behavior information to the USIM;

[0127] S013, USIM obtains ePDG selection behavior information, that is, it obtains its own customized ePDG selection behavior information;

[0128] S014. The terminal does not synchronize ePDG selection behavior information.

[0129] Embodiment 1 of this invention provides a method for customized ePDG information synchronization applied to a terminal. The terminal receives a customized information sending request from the USIM and sends customized ePDG selection behavior information to the USIM, enabling information to be sent on demand. While satisfying the USIM's requirement to obtain ePDG information, the method simplifies the information sending process and saves machine-card interaction resources. It also provides a process for defining the conditions for customized ePDG information synchronization, as well as the information structure and command structure involved, and proposes a complete technical implementation scheme.

[0130] Example 2:

[0131] like Figure 4 As shown, Embodiment 2 of the present invention provides a method for customized synchronization of Evolved Packet Data Gateway (ePDG) information, applied to the Universal Subscriber Identity Module (USIM). The method includes:

[0132] S21. Receive ePDG selection behavior information from the terminal. The ePDG selection behavior information is sent by the terminal after determining that the current ePDG selection behavior information meets the customized ePDG information synchronization conditions.

[0133] S22. Obtain the customized ePDG selection behavior information based on the ePDG selection behavior information.

[0134] Optionally, before receiving ePDG selection behavior information from the terminal, the method further includes:

[0135] Receive terminal capability configuration information from the terminal;

[0136] A customized ePDG information synchronization command is sent to the terminal according to the terminal capability configuration information, so that the terminal can obtain the customized ePDG information synchronization conditions according to the customized ePDG information synchronization command.

[0137] Optionally, sending a customized ePDG information synchronization command to the terminal based on the terminal capability configuration information specifically includes:

[0138] The terminal capability configuration information is parsed to obtain the degree of support of the terminal for synchronizing limited ePDG selection behavior information, including: whether it supports ePDG selection behavior information synchronization and whether it supports limited ePDG selection behavior information synchronization.

[0139] The customized ePDG information synchronization command is generated based on the level of support, including: the limited type and limited conditions for sending ePDG selection behavior information specified by USIM;

[0140] Send the customized ePDG information synchronization command to the terminal.

[0141] Optionally, generating the customized ePDG information synchronization command based on the level of support specifically includes:

[0142] If the terminal does not support ePDG selection behavior information synchronization, the customized ePDG information synchronization command will not be generated.

[0143] If the terminal does not support the synchronization of limited ePDG selected behavior information, a first customized ePDG information synchronization command is generated, which includes: the limited type specifies the synchronization of all ePDG selected behavior information;

[0144] If the terminal supports limited ePDG selection behavior information synchronization, a second customized ePDG information synchronization command is generated, which includes: the limited type specifies limited ePDG selection behavior information synchronization.

[0145] Optionally, if the terminal supports limiting ePDG selection behavior information synchronization, the method further includes:

[0146] Determine the limiting conditions for your customized ePDG selection behavior information based on your own needs.

[0147] If the number of the limiting conditions is one, then one of the limiting conditions is added to the second customized ePDG information synchronization command;

[0148] If there are multiple limiting conditions, then multiple limiting conditions and their relationships are added to the second customized ePDG information synchronization command.

[0149] Optionally, the limiting conditions include: limiting ePDG, limiting public land mobile network (PLMN), and / or limiting connection results;

[0150] The relationship between the multiple limiting conditions includes: sending the corresponding ePDG selection behavior information when any one limiting condition is met, or sending the corresponding ePDG selection behavior information when all multiple limiting conditions are met.

[0151] Optionally, if the terminal supports limiting ePDG selection behavior information synchronization, the method further includes:

[0152] Determine whether to instruct the terminal to replace the previous second customized ePDG information synchronization conditions based on its own needs;

[0153] If a replacement is determined, specify the second customized ePDG information synchronization condition prior to the replacement in the defined type;

[0154] If it is determined not to replace, specify a second customized ePDG information synchronization condition before not replacing in the defined type.

[0155] Embodiment 2 of the present invention provides a method for customized synchronization of ePDG information applied to USIM. The USIM makes a customized information sending request to the terminal and receives customized ePDG selection behavior information sent by the terminal, so that the information is sent on demand. While satisfying the USIM's need to obtain ePDG information, the information sending process is simplified and the machine-card interaction resources are saved. For detailed process and technical effects, please refer to Embodiment 1.

[0156] Example 3:

[0157] like Figure 5 As shown, Embodiment 3 of the present invention provides a terminal, the terminal comprising:

[0158] The first acquisition module 11 is used to acquire the current Evolved Packet Data Gateway (ePDG) selection behavior information;

[0159] The first judgment module 12 is connected to the first acquisition module 11 and is used to determine whether the ePDG selection behavior information meets the customized ePDG information synchronization conditions.

[0160] The first sending module 13, connected to the first judging module 12, is used to send the ePDG selection behavior information to the Universal User Identification Module (USIM) if the condition is met, so that the USIM can obtain customized ePDG selection behavior information.

[0161] Optionally,

[0162] The first sending module 13 is also used to send terminal capability configuration information to the USIM;

[0163] The terminal also includes:

[0164] The first receiving module is used to receive a customized ePDG information synchronization command from USIM, wherein the customized ePDG information synchronization command is sent by USIM according to the terminal capability configuration information.

[0165] The first customized module, connected to the first receiving module, is also used to obtain the customized ePDG information synchronization conditions according to the customized ePDG information synchronization command.

[0166] Optionally, the first customized module specifically includes:

[0167] The first parsing unit is used to parse the customized ePDG information synchronization command to obtain the limiting type and limiting conditions for sending ePDG selection behavior information specified by USIM;

[0168] The first customization unit, connected to the first parsing unit, is used to obtain the customized ePDG information synchronization conditions specified by USIM according to the defined type and the defined conditions.

[0169] Optionally, the first customized unit is specifically used for:

[0170] If the specified limitation type specifies that all ePDG selected behavior information is synchronized, then the customized ePDG information synchronization condition specified by USIM is to synchronize all ePDG selected behavior information.

[0171] If the specified constraint type specifies that the ePDG selection behavior information synchronization is limited, then the first customized ePDG information synchronization condition specified by USIM is obtained according to the specified constraint condition.

[0172] Optionally, the first customized unit is more specifically used for:

[0173] If the number of the limiting conditions is one, then obtain a first customized ePDG information synchronization condition specified by USIM.

[0174] If there are multiple limiting conditions, the relationship between the multiple limiting conditions is obtained, and the multiple limiting conditions are combined according to the relationship between the multiple limiting conditions to obtain the first customized ePDG information synchronization condition specified by USIM.

[0175] Optionally, the limiting conditions include: limiting ePDG, limiting public land mobile network (PLMN), and / or limiting connection results;

[0176] The relationship between the multiple limiting conditions includes: sending the corresponding ePDG selection behavior information when any one limiting condition is met, or sending the corresponding ePDG selection behavior information when all multiple limiting conditions are met.

[0177] Optionally, the first customized unit is further specifically used for:

[0178] If the defined type also specifies a second customized ePDG information synchronization condition to replace the previous one, then the first customized ePDG information synchronization condition obtained is the customized ePDG information synchronization condition specified by USIM.

[0179] If the specified type specifies that the second customized ePDG information synchronization condition should not be replaced, then the first customized ePDG information synchronization condition and the second customized ePDG information synchronization condition obtained are the customized ePDG information synchronization conditions specified by USIM.

[0180] Embodiment 3 of the present invention provides a terminal corresponding to Embodiment 1 to realize customized synchronization of ePDG information between the terminal and USIM, so that information is sent on demand. While satisfying the USIM's requirement to obtain ePDG information, it simplifies the information sending process and saves machine-card interaction resources.

[0181] Example 4:

[0182] like Figure 6 As shown, Embodiment 4 of the present invention provides a Universal User Identification Module (USIM), the USIM comprising:

[0183] The second receiving module 21 is used to receive Evolved Packet Data Gateway (ePDG) selection behavior information from the terminal. The ePDG selection behavior information is sent by the terminal after determining that the current ePDG selection behavior information meets the customized ePDG information synchronization conditions.

[0184] The second acquisition module 22 is connected to the second receiving module 21 and is used to acquire its own customized ePDG selection behavior information based on the ePDG selection behavior information.

[0185] Optionally,

[0186] The second receiving module 21 is also used to receive terminal capability configuration information from the terminal;

[0187] The USIM also includes:

[0188] The second sending module, connected to the second receiving module 21, is used to send a customized ePDG information synchronization command to the terminal according to the terminal capability configuration information, so that the terminal can obtain the customized ePDG information synchronization conditions according to the customized ePDG information synchronization command.

[0189] Optionally, the second sending module specifically includes:

[0190] The second parsing unit is used to parse the terminal capability configuration information to obtain the degree of support of the terminal for synchronous limited ePDG selection behavior information, including: whether it supports ePDG selection behavior information synchronization and whether it supports limited ePDG selection behavior information synchronization.

[0191] The second customization module, connected to the second parsing unit, is used to generate the customized ePDG information synchronization command according to the support level, including: the limited type and limited conditions for sending ePDG selection behavior information specified by USIM;

[0192] The second sending unit, connected to the second customized module, is used to send the customized ePDG information synchronization command to the terminal.

[0193] Optionally, the second customized module is specifically used for:

[0194] If the terminal does not support ePDG selection behavior information synchronization, the customized ePDG information synchronization command will not be generated.

[0195] If the terminal does not support the synchronization of limited ePDG selected behavior information, a first customized ePDG information synchronization command is generated, which includes: the limited type specifies the synchronization of all ePDG selected behavior information;

[0196] If the terminal supports limited ePDG selection behavior information synchronization, a second customized ePDG information synchronization command is generated, which includes: the limited type specifies limited ePDG selection behavior information synchronization.

[0197] Optionally, the second customized module is more specifically used for:

[0198] Determine the limiting conditions for your customized ePDG selection behavior information based on your own needs.

[0199] If the number of the limiting conditions is one, then one of the limiting conditions is added to the second customized ePDG information synchronization command;

[0200] If there are multiple limiting conditions, then multiple limiting conditions and their relationships are added to the second customized ePDG information synchronization command.

[0201] Optionally, the limiting conditions include: limiting ePDG, limiting public land mobile network (PLMN), and / or limiting connection results;

[0202] The relationship between the multiple limiting conditions includes: sending the corresponding ePDG selection behavior information when any one limiting condition is met, or sending the corresponding ePDG selection behavior information when all multiple limiting conditions are met.

[0203] Optionally, the second customized module is further specifically used for:

[0204] Determine whether to instruct the terminal to replace the previous second customized ePDG information synchronization conditions based on its own needs;

[0205] If a replacement is determined, specify the second customized ePDG information synchronization condition prior to the replacement in the defined type;

[0206] If it is determined not to replace, specify a second customized ePDG information synchronization condition before not replacing in the defined type.

[0207] Embodiment 4 of the present invention provides a USIM corresponding to Embodiment 2 to realize customized synchronization of ePDG information between the terminal and the USIM, so that information is sent on demand. While satisfying the requirement of the USIM to obtain ePDG information, it simplifies the information sending process and saves the resources of the terminal-card interaction.

[0208] Example 5:

[0209] Embodiment 5 of the present invention provides a computer-readable storage medium storing a computer program. When the computer program is run by a processor, it implements the Evolved Packet Data Gateway (ePDG) information customization synchronization method as described in Embodiment 1 or 2.

[0210] The computer-readable storage medium includes volatile or non-volatile, removable or non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules, or other data). Computer-readable storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other memory technologies, CD-ROM (Compact Disc Read-Only Memory), DVD or other optical disc storage, cartridges, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer.

[0211] In addition, the present invention may also provide a computer device including a memory and a processor, wherein the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the Evolved Packet Data Gateway (ePDG) information customization synchronization method as described in Embodiment 1 or 2.

[0212] The memory is connected to the processor. The memory can be flash memory, read-only memory or other types of memory. The processor can be a central processing unit or a microcontroller.

[0213] Furthermore, the present invention can also provide an evolved PDG information customization synchronization system, including a terminal for implementing the evolved PDG information customization synchronization method as described in Embodiment 1, and a USIM for implementing the evolved PDG information customization synchronization method as described in Embodiment 2.

[0214] Embodiments 1-5 of this invention provide a method for customized ePDG information synchronization, a terminal, a USIM, and a computer-readable storage medium. After executing an ePDG selection action, the terminal sends the ePDG selection action information that meets the conditions for customized ePDG information synchronization to the USIM. Thus, the USIM can obtain the customized ePDG selection action information, realizing customized synchronization of ePDG selection action information between the terminal and the USIM. This improves the mobility and flexibility of ePDG information synchronization between the terminal and the USIM, avoids the interaction of all ePDG selection action information when unnecessary, and simplifies the amount of data exchanged according to needs. It improves the service quality of ePDG selection synchronization configuration in a simpler, more efficient, and resource-optimized manner.

[0215] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. An evolved packet data gateway (ePDG) information customization synchronization method, characterized in that, The method applied to a terminal comprises: acquiring current ePDG selection behavior information; judging whether the ePDG selection behavior information meets a customized ePDG information synchronization condition; if yes, sending the ePDG selection behavior information to a universal subscriber identity module (USIM) so that the USIM acquires customized ePDG selection behavior information.

2. The method of claim 1, wherein, Before judging whether the ePDG selection behavior information meets the customized ePDG information synchronization condition, the method further comprises: sending terminal capability configuration information to the USIM; receiving a customized ePDG information synchronization command from the USIM, the customized ePDG information synchronization command being sent by the USIM according to the terminal capability configuration information; acquiring the customized ePDG information synchronization condition according to the customized ePDG information synchronization command.

3. The method of claim 2, wherein, The acquiring of the customized ePDG information synchronization condition according to the customized ePDG information synchronization command specifically comprises: parsing the customized ePDG information synchronization command to acquire a limited type and a limited condition of sending ePDG selection behavior information specified by the USIM; acquiring a customized ePDG information synchronization condition specified by the USIM according to the limited type and the limited condition.

4. The method of claim 3, wherein, The acquiring of the customized ePDG information synchronization condition specified by the USIM according to the limited type and the limited condition specifically comprises: if the limited type specifies synchronization of all ePDG selection behavior information, acquiring the customized ePDG information synchronization condition specified by the USIM as synchronization of all ePDG selection behavior information; if the limited type specifies synchronization of limited ePDG selection behavior information, acquiring a first customized ePDG information synchronization condition specified by the USIM according to the limited condition.

5. The method of claim 4, wherein, The acquiring of the first customized ePDG information synchronization condition specified by the USIM according to the limited condition specifically comprises: if the number of the limited conditions is one, acquiring the first customized ePDG information synchronization condition specified by the USIM as one of the limited conditions; if the number of the limited conditions is multiple, acquiring a relationship of the multiple limited conditions and combining the multiple limited conditions according to the relationship of the multiple limited conditions to acquire the first customized ePDG information synchronization condition specified by the USIM.

6. The method of claim 5, wherein, The limited condition comprises: a limited ePDG, a limited public land mobile network (PLMN), and / or a limited connection result. The relationship of the multiple limited conditions comprises: sending corresponding ePDG selection behavior information when any one of the limited conditions is established, or sending corresponding ePDG selection behavior information when all of the multiple limited conditions are established.

7. The method according to any one of claims 4-6, characterized in that, After acquiring the first customized ePDG information synchronization condition specified by the USIM according to the limited condition, the method further comprises: if the limited type further specifies replacing a second customized ePDG information synchronization condition previously acquired, the first customized ePDG information synchronization condition acquired is the customized ePDG information synchronization condition specified by the USIM; If the limited type specifies not to replace the previous second customized ePDG information synchronization condition, the acquired first customized ePDG information synchronization condition and the second customized ePDG information synchronization condition are the customized ePDG information synchronization conditions specified by the USIM.

8. An evolved packet data gateway (ePDG) information customization synchronization method, comprising: The method is applied to a universal subscriber identity module (USIM) and includes the following steps: receiving ePDG selection behavior information from a terminal, the ePDG selection behavior information being sent by the terminal after determining that the current ePDG selection behavior information meets a customized ePDG information synchronization condition; acquiring self-customized ePDG selection behavior information according to the ePDG selection behavior information.

9. The method of claim 8, wherein, Before receiving the ePDG selection behavior information from the terminal, the method further includes the following steps: receiving terminal capability configuration information from the terminal; sending a customized ePDG information synchronization command to the terminal according to the terminal capability configuration information, so that the terminal acquires the customized ePDG information synchronization condition according to the customized ePDG information synchronization command.

10. The method of claim 9, wherein, The step of sending the customized ePDG information synchronization command to the terminal according to the terminal capability configuration information specifically includes the following steps: parsing the terminal capability configuration information to acquire the support degree of the terminal for synchronization of limited ePDG selection behavior information, including whether the terminal supports synchronization of ePDG selection behavior information and whether the terminal supports synchronization of limited ePDG selection behavior information; generating the customized ePDG information synchronization command according to the support degree, including a limited type and a limited condition specified by the USIM for sending ePDG selection behavior information; sending the customized ePDG information synchronization command to the terminal.

11. The method of claim 10, wherein, The step of generating the customized ePDG information synchronization command according to the support degree specifically includes the following steps: if the terminal does not support synchronization of ePDG selection behavior information, the customized ePDG information synchronization command is not generated; if the terminal does not support synchronization of limited ePDG selection behavior information, a first customized ePDG information synchronization command is generated, including a limited type that specifies synchronization of all ePDG selection behavior information; if the terminal supports synchronization of limited ePDG selection behavior information, a second customized ePDG information synchronization command is generated, including a limited type that specifies synchronization of limited ePDG selection behavior information.

12. The method of claim 11, wherein, If the terminal supports synchronization of limited ePDG selection behavior information, the method further includes the following steps: determining a limited condition for self-customized ePDG selection behavior information according to self needs; if the number of the limited conditions is one, the limited condition is added to the second customized ePDG information synchronization command; if the number of the limited conditions is multiple, multiple limited conditions and the relationship among the multiple limited conditions are added to the second customized ePDG information synchronization command.

13. The method of claim 12, wherein, The limited condition includes a limited ePDG, a limited public land mobile network (PLMN), and / or a limited connection result. The relationship of the plurality of the defined conditions comprises: sending corresponding ePDG selection behavior information when any one of the defined conditions is established, or sending corresponding ePDG selection behavior information when all of the defined conditions are established.

14. The method according to any one of claims 11-13, characterized in that, If the terminal supports the limited ePDG selection behavior information synchronization, the method further comprises: determining whether to instruct the terminal to replace the previous second customized ePDG information synchronization condition according to the own demand; if it is determined to replace, specifying the replacement of the previous second customized ePDG information synchronization condition in the defined type; if it is determined not to replace, specifying the non-replacement of the previous second customized ePDG information synchronization condition in the defined type.

15. A terminal, characterized by The terminal comprises: a first acquisition module, configured to acquire current evolved packet data gateway (ePDG) selection behavior information; a first judgment module, connected with the first acquisition module, configured to judge whether the ePDG selection behavior information meets a customized ePDG information synchronization condition; a first sending module, connected with the first judgment module, configured to send the ePDG selection behavior information to a universal subscriber identity module (USIM) to enable the USIM to acquire customized ePDG selection behavior information if the ePDG selection behavior information meets the customized ePDG information synchronization condition.

16. A universal subscriber identity module (USIM), characterized by The USIM comprises: a second receiving module, configured to receive evolved packet data gateway (ePDG) selection behavior information from a terminal, the ePDG selection behavior information being sent by the terminal after judging that current ePDG selection behavior information meets a customized ePDG information synchronization condition; a second acquisition module, connected with the second receiving module, configured to acquire self-customized ePDG selection behavior information according to the ePDG selection behavior information.

17. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and when the computer program is run by a processor, an evolved packet data gateway (ePDG) information customization synchronization method according to any one of claims 1-7 or 8-14 is implemented.

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