Communication method, internet of things terminal, network element, caller and core network device

Abstract

The present disclosure relates to a communication method, an Internet of Things terminal, a first network element, a second network element, a caller, a core network device, a communication device, a communication system and a storage medium. The method comprises: receiving first information, which is sent by a network device; and according to the first information, deleting digitally stored information. By means of the method, an Internet of Things terminal can be managed, thereby protecting the information security of the Internet of Things terminal.

Description

Communication method, IoT terminal, network element, caller, core network equipment Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, an Internet of Things terminal, a first network element, a second network element, a caller, a core network device, a communication device, a communication system, and a storage medium. Background Art

[0002] The 3GPP (3rd Generation Partnership Project) standard involves IoT services, in which it is beneficial to manage IoT terminals.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a communication method and apparatus, an Internet of Things terminal, a first network element, a second network element, a caller, a core network device, a communication device, a communication system, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising:

[0006] receiving first information sent by a network device;

[0007] The digital storage information is deleted according to the first information.

[0008] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising:

[0009] The second network element sends first information, where the first information is used by the Internet of Things terminal to delete digital storage information.

[0010] According to a third aspect of an embodiment of the present disclosure, a communication method is proposed, the method including:

[0011] The first network element sends first information to the Internet of Things terminal, where the first information is used by the Internet of Things terminal to delete digital storage information.

[0012] According to a fourth aspect of an embodiment of the present disclosure, a communication method is provided, the method including:

[0013] The caller determines to delete the digital storage information of the IoT terminal and generates the first information;

[0014] The first information is sent to the second network element, where the first information is used by the Internet of Things terminal to delete the digital storage information.

[0015] According to a fifth aspect of the embodiments of the present disclosure, a communication method is proposed, the method including:

[0016] The core network device determines the first information;

[0017] The first information is sent to the Internet of Things terminal, where the first information is used by the Internet of Things terminal to delete the digital storage information.

[0018] According to a sixth aspect of an embodiment of the present disclosure, a communication method is provided, the method including:

[0019] The second network element determines the first information;

[0020] The second network element sends the first information to the first network element;

[0021] The first network element sends the first information to the Internet of Things terminal;

[0022] The Internet of Things terminal deletes the digital storage information according to the first information.

[0023] According to a seventh aspect of the embodiments of the present disclosure, an Internet of Things terminal is provided, comprising:

[0024] a transceiver module, receiving first information sent by a network device;

[0025] The processing module deletes the digital storage information according to the first information.

[0026] According to an eighth aspect of an embodiment of the present disclosure, a first network element is provided, where the first network element includes:

[0027] The transceiver module is used for the first network element to send first information to the Internet of Things terminal, where the first information is used for the Internet of Things terminal to delete digital stored information.

[0028] According to a ninth aspect of an embodiment of the present disclosure, a second network element is provided, where the second network element includes:

[0029] The transceiver module is used for the second network element to send the first information, where the first information is used for the Internet of Things terminal to delete the digital storage information.

[0030] According to a tenth aspect of an embodiment of the present disclosure, a caller is provided, the caller including:

[0031] A processing module, configured for the caller to determine to delete the digital storage information of the IoT terminal and generate first information;

[0032] The transceiver module is used to send the first information to the second network element, where the first information is used for the Internet of Things terminal to delete the digital storage information.

[0033] According to an eleventh aspect of the embodiments of the present disclosure, a core network device is provided, wherein the core network device includes:

[0034] a transceiver module, configured to send the first information to an Internet of Things terminal, wherein the first information is used by the Internet of Things terminal to delete digital stored information;

[0035] The processing module is used for the core network device to determine the first information.

[0036] According to a twelfth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0037] one or more processors;

[0038] The processor is used to call computer instructions to enable the communication device to execute the communication method described in any one of the first to fifth aspects of the present disclosure.

[0039] According to the thirteenth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising an Internet of Things terminal, a first network element, a second network element, and a caller, wherein the Internet of Things terminal is configured to implement the communication method described in the first aspect, the second network element is configured to implement the communication method described in the second aspect, the first network element is configured to implement the communication method described in the third aspect, and the caller is configured to implement the communication method described in the fourth aspect.

[0040] According to the fourteenth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method described in any one of the first to fifth aspects of the present disclosure.

[0041] According to the fifteenth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a computer program product. When the above-mentioned computer program product is executed by a communication device, the above-mentioned communication device executes the communication method as described in any one of the first to fifth aspects.

[0042] The disclosed embodiments can manage IoT terminals and protect the information security of IoT terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0044] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0045] FIG1 b is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0046] FIG1c is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0047] FIG1d is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0048] FIG2 is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure.

[0049] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure.

[0050] FIG4 a is a flow chart showing a communication method according to an embodiment of the present disclosure.

[0051] FIG4 b is a flow chart of a communication method according to an embodiment of the present disclosure.

[0052] FIG5 is a flow chart showing a communication method according to an embodiment of the present disclosure.

[0053] FIG6 a is a flow chart showing a communication method according to an embodiment of the present disclosure.

[0054] FIG6 b is a flow chart of a communication method according to an embodiment of the present disclosure.

[0055] FIG7 a is a flow chart of a communication method according to an embodiment of the present disclosure.

[0056] FIG7 b is a flow chart of a communication method according to an embodiment of the present disclosure.

[0057] FIG7c is a flow chart of a communication method according to an embodiment of the present disclosure.

[0058] FIG7 d is a flow chart of a communication method according to an embodiment of the present disclosure.

[0059] FIG8 is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure.

[0060] FIG9 a is a schematic structural diagram of a first communication device provided according to an embodiment of the present disclosure.

[0061] FIG9 b is a schematic structural diagram of a second communication device provided according to an embodiment of the present disclosure.

[0062] FIG9c is a schematic structural diagram of a second communication device provided according to an embodiment of the present disclosure.

[0063] Figure 9d is a schematic structural diagram of a second communication device provided according to an embodiment of the present disclosure.

[0064] Figure 9e is a schematic structural diagram of a second communication device provided according to an embodiment of the present disclosure.

[0065] FIG10 a is a schematic structural diagram of a communication device provided according to an embodiment of the present disclosure.

[0066] FIG10 b is a schematic structural diagram of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0067] The embodiments of the present disclosure provide a communication method, an Internet of Things terminal, a first network element, a second network element, a caller, a core network device, a communication device, a communication system, and a storage medium.

[0068] In a first aspect, an embodiment of the present disclosure provides a communication method, which is executed by an Internet of Things terminal, and the method includes:

[0069] receiving first information sent by a network device;

[0070] The digital storage information is deleted according to the first information.

[0071] In the above embodiment, the IoT terminal receives the first information sent by the network device and deletes the digital stored information based on the first information. The IoT terminal can manage the digital stored information of the IoT terminal based on the first information sent by the network, preventing the digital stored information of the IoT terminal from being obtained by unauthorized users and protecting the information security of the IoT terminal. A new instruction from the core network device to the IoT terminal is proposed.

[0072] In conjunction with some embodiments of the first aspect, in some embodiments, the network device includes a first network element and a second network element, and receiving the first information sent by the network device includes:

[0073] Receive the first information sent by the first network element, where the first information is sent by the second network element to the first network element.

[0074] In the above embodiment, the Internet of Things terminal can reuse the network elements in the core network device to receive the first information, which can save resources.

[0075] In conjunction with some embodiments of the first aspect, in some embodiments, the network device includes a first network element and a second network element, and receiving the first information sent by the network device includes:

[0076] The first information sent by the first network element is received, where the first information is sent by the second network element to the first network element through an access management (AM) policy control update notification.

[0077] In the above embodiment, the Internet of Things terminal can reuse the network elements and related signaling in the core network device to receive the first information, which can save resources.

[0078] With reference to some embodiments of the first aspect, in some embodiments, the receiving the first information sent by the first network element includes:

[0079] Receive a non-access stratum (NAS) notification sent by the first network element, where the NAS notification includes the first information.

[0080] In the above embodiment, the Internet of Things terminal can reuse relevant signaling to receive the first information sent by the first network element, which can save resources.

[0081] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0082] Send first response information to the first network element according to the first information.

[0083] In the above embodiment, the Internet of Things terminal may send first response information to the first network element to provide feedback on the first information sent by the first network element.

[0084] In combination with some embodiments of the first aspect, in some embodiments, the first information is sent when the second network element determines that the contract data of the Internet of Things terminal includes second information allowing the Internet of Things terminal to delete digital storage information.

[0085] In the above embodiment, the second network element can determine whether to send the first information based on the contract data of the Internet of Things terminal. For example, the first information is sent when it is determined that the contract data of the Internet of Things terminal includes the second information allowing the Internet of Things terminal to delete the digital storage information. Since the first information is sent only when it is determined based on the contract data that the Internet of Things terminal allows the deletion of digital storage information, accurate management of the Internet of Things terminal can be achieved.

[0086] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is sent to the second network element by a caller, and the caller is at least one of the following:

[0087] Extended functions of Internet of Things application functions, newly added application functions, newly added network elements or extended functions of the second network element.

[0088] In the above embodiment, a variety of optional callers are proposed, which can be selected according to actual needs, thereby improving the diversity of management of IoT terminals.

[0089] In combination with some embodiments of the first aspect, in some embodiments, the first information is sent by the caller to the second network element through a policy authorization service call request.

[0090] In the above embodiment, related services in the core network device can be reused to send the first information to the second network element, which can save resources.

[0091] In combination with some embodiments of the first aspect, in some embodiments, the first information is sent to the second network element when the caller successfully verifies the requester information.

[0092] In the above embodiment, the caller can verify the requester to prevent any requester from being able to request to delete the digital storage information of the Internet of Things terminal, thereby protecting the information security of the Internet of Things terminal.

[0093] In a second aspect, an embodiment of the present disclosure provides a communication method, performed by a second network element, the method including:

[0094] The second network element sends first information, where the first information is used by the Internet of Things terminal to delete digital storage information.

[0095] In the above embodiment, the second network element can send the first information for deleting the digital stored information from the IoT terminal. This allows the IoT terminal to manage the digital stored information, prevents unauthorized access to the digital stored information, and protects the information security of the IoT terminal. A new instruction from the second network element to the IoT terminal is proposed.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments, sending the first information includes:

[0097] The first information is sent to a first network element, where the first network element is used to send the first information to the Internet of Things terminal.

[0098] In the above embodiment, network elements in the core network device can be reused to send the first information to the Internet of Things terminal, which can save resources.

[0099] In conjunction with some embodiments of the second aspect, in some embodiments, sending the first information includes:

[0100] An AM policy control update notification is sent to the first network element, where the AM policy control update notification includes the first information, and the AM policy control update notification is used by the first network element to send the first information to the Internet of Things terminal.

[0101] In the above embodiment, relevant signaling in the core network device can be reused to send the first information to the first network element, which can save resources.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, sending the first information includes:

[0103] Obtaining the contract data of the IoT terminal;

[0104] The first information is sent, wherein the contract data includes second information allowing the Internet of Things terminal to delete digital storage information.

[0105] In the above embodiment, the second network element can determine whether to send the first information based on the contract data of the Internet of Things terminal. For example, the first information is sent when it is determined that the contract data of the Internet of Things terminal includes the second information allowing the Internet of Things terminal to delete the digital storage information. Since the first information is sent only when it is determined based on the contract data that the Internet of Things terminal allows the deletion of digital storage information, accurate management of the Internet of Things terminal can be achieved.

[0106] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0107] Receive first information sent by a caller, where the caller is at least one of the following:

[0108] Extended functions of Internet of Things application functions, newly added application functions, newly added network elements or extended functions of the second network element.

[0109] In the above embodiment, a variety of optional callers are proposed, which can be selected according to actual needs, thereby improving the diversity of management of IoT terminals.

[0110] In conjunction with some embodiments of the second aspect, in some embodiments, receiving the first information sent by the caller includes:

[0111] A policy authorization service invocation request sent by the caller is received, where the policy authorization service invocation request includes the first information.

[0112] In the above embodiment, related services in the core network device can be reused to send the first information to the second network element, which can save resources.

[0113] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0114] Send a policy authorization service response message to the caller.

[0115] In the above embodiment, the second network element may send a policy authorization service response message to the caller to provide feedback on the policy authorization service call request sent by the caller.

[0116] In combination with some embodiments of the second aspect, in some embodiments, the first information is sent to the second network element when the caller verifies the requester information.

[0117] In the above embodiment, the caller can verify the requester to prevent any requester from being able to request to delete the digital storage information of the Internet of Things terminal, thereby protecting the information security of the Internet of Things terminal.

[0118] In a third aspect, an embodiment of the present disclosure provides a communication method, performed by a first network element, the method including:

[0119] The first network element sends first information to the Internet of Things terminal, where the first information is used by the Internet of Things terminal to delete digital storage information.

[0120] In the above embodiment, the first network element can send a first message to the IoT terminal, instructing the IoT terminal to delete the digital stored information. This allows the IoT terminal to manage the digital stored information, prevents unauthorized access to the digital stored information, and protects the information security of the IoT terminal. A new instruction from the first network element to the IoT terminal is proposed.

[0121] In conjunction with some embodiments of the third aspect, in some embodiments, sending the first information to the IoT terminal includes:

[0122] Send a NAS notification to the IoT terminal, where the NAS notification includes the first information.

[0123] In the above embodiment, the first network element can reuse relevant signaling to send the first information to the Internet of Things terminal, which can save resources.

[0124] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0125] Receive first response information sent by the Internet of Things terminal, where the first response information is sent by the Internet of Things terminal according to the first information.

[0126] In the above embodiment, the Internet of Things terminal may send first response information to the first network element to provide feedback on the first information sent by the first network element.

[0127] In combination with some embodiments of the third aspect, in some embodiments, the first information is sent by the second network element to the first network element through an AM policy control update notification.

[0128] In the above embodiment, relevant signaling in the core network device can be reused to send the first information to the first network element, which can save resources.

[0129] In combination with some embodiments of the third aspect, in some embodiments, the first information is sent to the first network element when the second network element determines that the contract data of the Internet of Things terminal includes second information allowing the Internet of Things terminal to delete digital storage information.

[0130] In the above embodiment, the second network element can determine whether to send the first information based on the contract data of the Internet of Things terminal. For example, the first information is sent when it is determined that the contract data of the Internet of Things terminal includes the second information allowing the Internet of Things terminal to delete the digital storage information. Since the first information is sent only when it is determined based on the contract data that the Internet of Things terminal allows the deletion of digital storage information, accurate management of the Internet of Things terminal can be achieved.

[0131] In conjunction with some embodiments of the third aspect, in some embodiments, the first information is sent to the second network element by a caller, and the caller is at least one of the following:

[0132] Extended functions of Internet of Things application functions, newly added application functions, newly added network elements or extended functions of the second network element.

[0133] In the above embodiment, a variety of optional callers are proposed, which can be selected according to actual needs, thereby improving the diversity of management of IoT terminals.

[0134] In combination with some embodiments of the third aspect, in some embodiments, the first information is sent by the caller to the second network element through a policy authorization service call request.

[0135] In the above embodiment, related services in the core network device can be reused to send the first information to the second network element, which can save resources.

[0136] In combination with some embodiments of the third aspect, in some embodiments, the first information is sent to the second network element when the caller successfully verifies the requester information.

[0137] In the above embodiment, the caller can verify the requester to prevent any requester from being able to request to delete the digital storage information of the Internet of Things terminal, thereby protecting the information security of the Internet of Things terminal.

[0138] In a fourth aspect, an embodiment of the present disclosure provides a communication method, executed by a caller, the method comprising:

[0139] The caller determines to delete the digital storage information of the IoT terminal and generates the first information;

[0140] The first information is sent to the second network element, where the first information is used by the Internet of Things terminal to delete digital storage information.

[0141] In the above embodiment, the caller can send the first information for the IoT terminal to delete the digital stored information, so that the IoT terminal can manage the digital stored information, prevent the digital stored information of the IoT terminal from being obtained by unauthorized users, and protect the information security of the IoT terminal. A new instruction from the caller to the IoT terminal is proposed.

[0142] With reference to some embodiments of the fourth aspect, in some embodiments, sending the first information to the second network element includes:

[0143] A policy authorization service invocation request is sent to the second network element, where the policy authorization service invocation request includes the first information.

[0144] In the above embodiment, related services in the core network device can be reused to send the first information to the second network element, which can save resources.

[0145] In conjunction with some embodiments of the fourth aspect, in some embodiments, the method further includes:

[0146] Receive a policy authorization service response message sent by the second network element.

[0147] In the above embodiment, the caller may receive the policy authorization service response message sent by the second network element to determine the feedback of the second network element to the policy authorization service call request.

[0148] In conjunction with some embodiments of the fourth aspect, in some embodiments, the caller is at least one of the following:

[0149] Extensions of IoT application functions, new application functions, or new network elements.

[0150] In the above embodiment, a variety of optional callers are proposed, which can be selected according to actual needs, thereby improving the diversity of management of IoT terminals.

[0151] With reference to some embodiments of the fourth aspect, in some embodiments, sending the first information to the second network element includes:

[0152] Obtain requester information;

[0153] The requesting party information is verified and the first information is sent to the second network element.

[0154] In the above embodiment, the caller can verify the requester to prevent any requester from being able to request to delete the digital storage information of the Internet of Things terminal, thereby protecting the information security of the Internet of Things terminal.

[0155] In a fifth aspect, an embodiment of the present disclosure provides a communication method, performed by a core network device, the method comprising:

[0156] The core network device determines the first information;

[0157] The first information is sent to the Internet of Things terminal, where the first information is used by the Internet of Things terminal to delete the digital storage information.

[0158] In the above embodiment, the core network device can send the first information for deleting the digital stored information to the IoT terminal, so that the IoT terminal can manage the digital stored information, prevent the digital stored information of the IoT terminal from being obtained by unauthorized users, and protect the information security of the IoT terminal. A new instruction from the core network device to the IoT terminal is proposed.

[0159] In a sixth aspect, an embodiment of the present disclosure provides a communication method, performed by a communication system, the method comprising:

[0160] The second network element determines the first information;

[0161] The second network element sends the first information to the first network element;

[0162] The first network element sends the first information to the Internet of Things terminal;

[0163] The Internet of Things terminal deletes the digital storage information according to the first information.

[0164] In the above embodiment, a new instruction from the second network element to the IoT terminal is proposed, so that the IoT terminal can delete the digital stored information, thereby preventing the digital stored information of the IoT terminal from being obtained by unauthorized users and protecting the information security of the IoT terminal.

[0165] In a seventh aspect, an embodiment of the present disclosure provides an Internet of Things terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute the optional implementation method of the first aspect.

[0166] In an eighth aspect, an embodiment of the present disclosure provides a first network element, which includes at least one of a transceiver module and a processing module; wherein the first network element is used to execute the optional implementation method of the third aspect.

[0167] In the ninth aspect, an embodiment of the present disclosure provides a second network element, which includes at least one of a transceiver module and a processing module; wherein the second network element is used to execute the optional implementation method of the second aspect.

[0168] In the tenth aspect, an embodiment of the present disclosure provides a caller, which includes at least one of a transceiver module and a processing module; wherein the caller is used to execute the optional implementation method of the fourth aspect.

[0169] In the eleventh aspect, an embodiment of the present disclosure provides a core network device, which includes at least one of a transceiver module and a processing module; wherein the core network device is used to execute the optional implementation method of the fifth aspect.

[0170] In the twelfth aspect, an embodiment of the present disclosure proposes an Internet of Things terminal, which includes: one or more processors; wherein the terminal is used to execute the optional implementation method of the first aspect.

[0171] In the thirteenth aspect, an embodiment of the present disclosure proposes a first network element, comprising: one or more processors; wherein the above-mentioned first network element is used to execute the optional implementation method of the third aspect.

[0172] In the fourteenth aspect, an embodiment of the present disclosure proposes a second network element, comprising: one or more processors; wherein the above-mentioned second network element is used to execute an optional implementation method of the second aspect.

[0173] In the fifteenth aspect, an embodiment of the present disclosure proposes a caller, comprising: one or more processors; wherein the above-mentioned caller is used to execute the optional implementation method of the fourth aspect.

[0174] In the sixteenth aspect, an embodiment of the present disclosure proposes a core network device, comprising: one or more processors; wherein the above-mentioned core network device is used to execute the optional implementation method of the fifth aspect.

[0175] In the seventeenth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal, a first network element, a second network element, a caller and a core network device; wherein the terminal is configured to execute the method described in the optional implementation manner of the first aspect, the first network element is configured to execute the method described in the optional implementation manner of the third aspect, the second network element is configured to execute the method described in the optional implementation manner of the second aspect, the caller is configured to execute the method described in the optional implementation manner of the fourth aspect, and the core network device is configured to execute the method described in the optional implementation manner of the fifth aspect.

[0176] In the eighteenth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal, a first network element, a second network element and a caller; wherein the terminal is configured to execute the method described in the optional implementation manner of the first aspect, the first network element is configured to execute the method described in the optional implementation manner of the third aspect, the second network element is configured to execute the method described in the optional implementation manner of the second aspect, and the caller is configured to execute the method described in the optional implementation manner of the fourth aspect.

[0177] In a nineteenth aspect, an embodiment of the present disclosure provides a communication device, including:

[0178] one or more processors;

[0179] The processor is used to call computer instructions to enable the communication device to execute the method described in any optional implementation of the first to fifth aspects.

[0180] In the twentieth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in any optional implementation method of the first to fifth aspects.

[0181] In the twenty-first aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in any optional implementation manner of the first to fifth aspects.

[0182] In the twenty-second aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in any optional implementation of the first to fifth aspects.

[0183] In a twenty-third aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in any optional implementation manner of the first to fifth aspects above.

[0184] It is understandable that the above-mentioned terminal, access network device, first network element, second network element, caller, core network device, communication system, storage medium, program product, computer program, chip or chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0185] The present disclosure provides invention titles. In some embodiments, the terms "communication method" and "information processing method" and "communication management method" are interchangeable; the terms "communication device" and "information processing device" and "communication management device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0186] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0187] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0188] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0189] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0190] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0191] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0192] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0193] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0194] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0195] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0196] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0197] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0198] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0199] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0200] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0201] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0202] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0203] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0204] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0205] Figure 1a is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1a, communication system 100a includes an IoT terminal 101, an access network device 102, a core network device 103, and a caller 104. As shown in Figure 1a, core network device 103 may include at least one of a first network element 1031, a second network element 1032, a third network element 1033, and a fourth network element 1034. Caller 104 may be independent of core network device 103.

[0206] Figure 1b is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1b , communication system 100b includes an IoT terminal 101, an access network device 102, a core network device 103, and an IoT application function 105. As shown in Figure 1b , core network device 103 may include at least one of a first network element 1031, a second network element 1032, a third network element 1033, and a fourth network element 1034. IoT application function 105 may be independent of core network device 103 and may include a caller 104.

[0207] Figure 1c is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1c, communication system 100c includes an IoT terminal 101, an access network device 102, a core network device 103, and a caller 104. As shown in Figure 1c, core network device 103 may include at least one of a first network element 1031, a second network element 1032, a third network element 1033, and a fourth network element 1034. Second network element 1032 may include caller 104.

[0208] Figure 1d is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1d, communication system 100d includes an IoT terminal 101, an access network device 102, a core network device 103, and a caller 104. As shown in Figure 1d, core network device 103 may include at least one of a first network element 1031, a second network element 1032, a third network element 1033, and a fourth network element 1034. The core network device may also include caller 104.

[0209] In some embodiments, an IoT terminal may be, for example, an ambient power-enabled Internet of Things (A-IoT) terminal. Ambient power-enabled IoT is an IoT service in which the IoT terminal is powered by an energy harvesting device or activator (not shown in Figures 1a-1d), which does not require batteries or has limited energy storage capacity (i.e., uses capacitors). It enables communication with IoT terminals without a traditional power source and / or avoids human intervention for charging or replacement. Ambient power-enabled IoT terminals lack traditional batteries and instead obtain energy through ambient IoT operations. Ambient IoT operations can be understood as using energy harvested from radio waves or any other form of energy, which can be obtained in specific use cases. For example, in some cases, an A-enabled IoT terminal can obtain energy from radio waves, which may originate from an access network entity or another terminal. In other scenarios, an A-enabled IoT terminal can obtain energy from solar energy, light, motion / vibration, heat, pressure, or any other energy source. Ambient power-enabled IoT terminals do not require traditional batteries and are therefore environmentally friendly. The ambient energy-powered IoT terminal can also be called the zero-power IoT, and the name is not limited here.

[0210] In some implementations, any IoT terminal that can support ambient power supply can be referred to as an ambient power supply IoT terminal, regardless of whether it can only support ambient power supply.

[0211] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, such as a radio access network (RAN). The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (NG-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0212] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0213] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0214] In some embodiments, the core network device may be a device including one or more network elements, such as the first network element 1031, the second network element 1032, etc., or may be multiple devices or a device group, each including all or part of the first network element 1031, the second network element 1032, etc. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0215] In some implementations, the first network element 1031 is, for example, an access and mobility management function (AMF) network element.

[0216] In some implementations, the access and mobility management function network element is used for access and mobility management of terminals in a mobile network, and the name is not limited thereto.

[0217] In some implementations, the second network element 1032 is, for example, a policy control function (PCF) network element.

[0218] In some implementations, the policy control function network element is used to implement user control policy management, and the name is not limited thereto.

[0219] In some implementations, the third network element 1033 is, for example, a unified data management network element (Unified Data Management, UDM).

[0220] In some implementations, the unified data management network element is used to implement user subscription data management, roaming control, etc., and the name is not limited thereto.

[0221] In some implementations, the fourth network element 1034 is, for example, a unified data storage network element (Unified Data Repository, UDR).

[0222] In some implementations, the unified data storage network element is used to store subscription data and policy data of the UDM and PCF, but the name is not limited thereto.

[0223] In some implementations, the name of the caller is not limited, for example, it can be called an IoT terminal management function, an IoT device management function (IoT Device Management Function, IDMF), etc.

[0224] In some implementations, the caller may be a newly added AF (Application Function) in the communication system, such as an IoT device management function AF. The newly added AF may be independent of the core network device, as shown in FIG1a.

[0225] In some implementations, the caller is a newly added function in an existing AF. For example, the caller may be a newly extended function in an existing Internet of Things Application Function (IoT AF), see FIG1b .

[0226] In some implementations, the caller may also be a newly added function in an existing network element. For example, the caller may be a newly extended function in an existing policy control function network element, see FIG. 1c .

[0227] In some implementations, the caller may also be a newly added network element, such as an IoT device management function network element. The newly added network element may be part of a core network device, as shown in FIG1d.

[0228] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0229] The following embodiments of the present disclosure can be applied to the communication system shown in Figures 1a-1d, or part of the subjects, but are not limited thereto. The subjects shown in Figures 1a-1d are examples. The communication system may include all or part of the subjects in Figures 1a-1d, or may include other subjects outside of Figures 1a-1d. The number and form of each subject are arbitrary. Each subject can be physical or virtual. The connection relationship between the subjects is an example. The subjects can be connected or disconnected. The connection can be in any manner, either directly or indirectly, and can be wired or wireless.

[0230] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0231] In some embodiments of the present disclosure, the UE may send an RRC (Radio Resource Control) establishment request to the NG-RAN, including a registration request, including a registration type, a SUCI (Subscription Concealed Identifier) ​​or a 5G-GUTI (Globally Unique Temporary UE Identity) or a PEI (Paging Early Indication), and security parameters. The NG-RAN initiates an N2 setup to the AMF, such as an initial UE message, and the registration request may be included in the NG-RAN request to the AMF.

[0232] In some embodiments of the present disclosure, the new AMF performs AM policy association establishment / modification. If the new AMF selects a new PCF, the new AMF performs AM policy association establishment with the selected PCF.

[0233] In some embodiments of the present disclosure, if a PCF identified by a PCF ID contained in the UE context of the old AMF is used, the new AMF performs AM policy association modification with the PCF.

[0234] In some embodiments of the present disclosure, if the AMF notifies the PCF of mobility restrictions, such as UE location, for adjustment, or the PCF updates the mobility restrictions on its own due to certain conditions, such as the application in use, time and date, the PCF shall provide the updated mobility restrictions to the AMF. If the subscription information includes a tracking requirement, the AMF shall provide the tracking requirement to the PCF.

[0235] In some embodiments of the present disclosure, the AMF receives an N2 Setup Request and a Registration Request. After authenticating and authorizing the UE, the AMF sends a Registration Accept to the UE via the NG-RAN.

[0236] In some embodiments of the present disclosure, if the terminal is an ambient-powered IoT terminal, it is possible to harvest energy and use the harvested energy to support communications. Although limited by complexity, size, and power consumption, the ambient-powered IoT terminal can provide sufficient communication services to meet the corresponding requirements.

[0237] In some embodiments of the present disclosure, if the subscription of an environment-powered Internet of Things terminal is suspended or terminated, or the environment-powered Internet of Things terminal is discarded, the environment-powered Internet of Things terminal can still continue to collect energy and may continue to attempt to access the network or be accessed by the network, which may lead to security risks, that is, the discarded environment-powered Internet of Things terminal may be obtained by unauthorized users, so that the data or other parameters of the environment-powered Internet of Things terminal may be obtained by unauthorized users, thereby making the data or other parameters of the environment-powered Internet of Things terminal subject to unauthorized access.

[0238] In some embodiments of the present disclosure, network systems, such as 5G systems, can provide means for a trusted third party to request the deletion of digitally stored information on an ambient-powered IoT terminal, based on operator policies. Alternatively, the network system can be any communication system, such as 4G, 6G, or the Internet of Vehicles, or any of their improved versions.

[0239] Therefore, in some embodiments of the present disclosure, it is necessary to manage IoT terminals such as environmentally powered IoT terminals.

[0240] In some implementations, managing the IoT terminal may include allowing the IoT terminal to delete digital stored information, so that the digital stored information of the IoT terminal may no longer be accessed, thereby protecting the information security of the IoT terminal.

[0241] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the embodiment of the present disclosure relates to a communication method, which can be used in communication systems 100a, 100b, 100c, or 100d. The method includes:

[0242] In step S2101, the caller 104 determines to delete the digital storage information of the Internet of Things terminal 101 and generates first information.

[0243] In some embodiments, the first information is used by the IoT terminal to delete digital stored information. Optionally, the IoT terminal can delete some or all of its stored digital stored information by formatting. Optionally, the IoT terminal can include an ambient-powered IoT terminal and a non-ambient-powered IoT terminal. The non-ambient-powered IoT terminal can be, for example, an IoT terminal powered by a battery or energy storage device.

[0244] In some embodiments, the name of the first information is not limited, and may be, for example, "delete all digitally stored information", "delete digitally stored information", "information on deleting digitally stored information", "first instruction", "instruction on deleting digitally stored information", etc.

[0245] In some implementations, the caller may be at least one of the following: an extended function of an Internet of Things application function, a newly added application function, a newly added network element, or an extended function of a second network element.

[0246] In some embodiments, when the caller is a newly added application function, it corresponds to Figure 1a; when the caller is an extended function of the Internet of Things application function 105, it corresponds to Figure 1b; when the caller is an extended function of the second network element, it corresponds to Figure 1c; when the caller is a newly added network element, it corresponds to Figure 1d.

[0247] In some implementations, the caller may determine to delete the digital storage information of the Internet of Things terminal upon receiving information sent by the requester requesting to delete the digital storage information of the Internet of Things terminal, thereby generating the first information.

[0248] In some implementations, the caller may obtain the requester information and verify the requester information, and generate the first information if the requester information passes the verification.

[0249] In some embodiments, the caller may generate the first information, obtain the requester information, and verify the requester information when determining to delete the digital storage information of the IoT terminal. If the requester information is verified, the caller may send the first information to the second network element.

[0250] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0251] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0252] In some embodiments, the requester information may include the requester's identity information. In this case, the caller may verify the requester's identity information to determine whether the requester has permission to delete the digital storage information of the IoT terminal. Optionally, if the caller determines that the requester has permission to delete the digital storage information of the IoT terminal, the caller may generate the first information.

[0253] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0254] In some implementations, the requesting party information includes identity information of the Internet of Things terminal requested to be deleted, and the identity information of the Internet of Things terminal is used to identify the Internet of Things terminal corresponding to the first information.

[0255] In some embodiments, the caller may receive a deletion request sent by the requester to request the deletion of the digital storage information of the Internet of Things terminal. The deletion request may include the identity of the Internet of Things terminal and the identity of the requester. The caller may determine to delete the digital storage information of the Internet of Things terminal based on the deletion request. The caller may further verify the identity of the requester. If the identity verification of the requester is successful, the first information may be generated.

[0256] It should be noted that, in some embodiments, the IoT terminal in the communication method of the embodiment of the present disclosure may also be replaced by other terminals. Other terminals may be, for example, smart phones, smart wearable devices, smart speakers, smart tablets, wireless modems, wireless local loop (WLL) stations, PDAs (Personal Digital Assistants), CPEs (Customer Premise Equipment), etc. With the development of wireless communication technology, devices that can access a communication system, communicate with access network devices of a communication system, or communicate with other objects through a communication system may be terminals in the embodiment of the present disclosure, for example, terminals and cars in intelligent transportation, household appliances in smart homes, power meter reading instruments, voltage monitoring instruments, environmental monitoring instruments in smart grids, video monitoring instruments in intelligent security networks, cash registers, etc.

[0257] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0258] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0259] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0260] In step S2102 , the caller 104 sends the first information to the second network element 1032 .

[0261] In some implementations, the second network element receives the first information.

[0262] In some implementations, the first information is used by the IoT terminal to delete digital stored information.

[0263] In some embodiments, the caller sends a call request to the second network element, the call request including the first information, thereby sending the first information to the second network element via the call request. Optionally, the second network element receives the call request sent by the caller. Optionally, the call request can be, for example, a policy authorization service call request already in the protocol, such as Npcf_PolicyAuthorization request, or a newly added request in the protocol.

[0264] In some implementations, the caller may send a policy authorization service call request to the second network element, where the policy authorization service call request includes first information. The second network element may receive the policy authorization service call request sent by the caller and obtain the first information from the policy authorization service call request.

[0265] In some implementations, the call request is used by the second network element to send the first information to the first network element.

[0266] In some implementations, the call request is used by the second network element to send second response information to the caller.

[0267] Step S2103 , the second network element 1032 sends a second response message to the caller 104 .

[0268] In some implementations, the caller may receive a second response message.

[0269] In some embodiments, the second response information includes information indicating that the policy authorization service call was successful. In this case, the name of the second response information is not limited, and can be, for example, "call success information," "success information," "receive success information," etc. In this case, the caller can determine that the policy authorization service call was successful based on the received information indicating that the policy authorization service call was successful.

[0270] In some embodiments, the first response includes information indicating a policy authorization service call failure. In this case, the name of the second response information is not limited, and may be, for example, "call failure information," "failure information," "receipt failure information," etc. In this case, the caller can determine that the policy authorization service call failed based on the received information indicating a policy authorization service call failure.

[0271] In some embodiments, the second network element sends a first response message to the caller, where the first response message includes the second response information, thereby sending the second response information to the caller via the first response message. Optionally, the caller receives the first response message sent by the second network element. Optionally, the first response message may be, for example, a policy authorization service first response message already in the protocol, such as Npcf_PolicyAuthorization request. Optionally, the call request may also be a first response message newly added to the protocol.

[0272] In some embodiments, the second network element may send a first response message to the caller, where the first response message includes second response information. The second network element may receive the first response message sent by the caller, obtain the second response information from the first response message, and thereby determine whether the policy authorization service call is successful or failed based on the second response information.

[0273] Step S2104 , the second network element 1032 sends first information to the first network element 1031 .

[0274] In some implementations, the first network element receives the first information.

[0275] In some implementations, the first information is used by the IoT terminal to delete digital stored information.

[0276] In some implementations, the second network element sends a first notification message to the first network element, where the first notification message includes the first information, thereby sending the first information to the first network element via the first notification message. Optionally, the first network element receives the first notification message sent by the second network element. Optionally, the first notification message may be, for example, an existing AM policy control update notification in the protocol, such as Npcf_AMPolicyControl_UpdateNotify, or may be a new message in the protocol.

[0277] In some embodiments, the first notification message may also include an AM policy association ID related to SUPI (SUbs cription Permanent Identifier), service area restriction, UE-AMBR (Aggregated Maximum Bit Rate), RFSP (rat / frequency selection priority) index value, access layer time distribution indication, time synchronization error budget and other information.

[0278] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0279] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) state", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", "panel" and the like can be used interchangeably.

[0280] In some implementations, the second network element may send an AM policy control update notification to the first network element, where the AM policy control update notification includes first information. The first network element receives the AM policy control update notification sent by the second network element and obtains the first information from the AM policy control update notification.

[0281] In some implementations, the first notification message is used by the first network element to send first information to the Internet of Things terminal.

[0282] In some embodiments, the second network element can obtain the contract data of the Internet of Things terminal. When the contract data includes second information allowing the Internet of Things terminal to delete the digital storage information, it indicates that the Internet of Things terminal requested by the requesting party to delete the digital storage information can delete the digital storage information, or it indicates that the Internet of Things terminal requested by the requesting party to delete the digital storage information has the ability to delete the digital storage information. In this case, the second network element can send the first information to the first network element.

[0283] In some embodiments, the second network element may obtain the contract data of the Internet of Things terminal. When the contract data does not include the second information allowing the Internet of Things terminal to delete the digital storage information, it indicates that the Internet of Things terminal requested by the requesting party to delete the digital storage information cannot delete the digital storage information, or it indicates that the Internet of Things terminal requested by the requesting party to delete the digital storage information does not have the ability to delete the digital storage information. In this case, the second network element may not send the first information to the first network element.

[0284] In some implementations, as shown in FIG. 1a to FIG. 1d , the second network element may obtain the subscription data of the IoT terminal from the third network element or the fourth network element.

[0285] In step S2105 , the first network element 1031 sends first information to the Internet of Things terminal 101 through the access network device 102 .

[0286] In some implementations, the IoT terminal may receive the first information sent by the first network element through an access network device.

[0287] In some implementations, the first information is used by the IoT terminal to delete digital stored information.

[0288] In some implementations, the first network element sends a second notification message, the second notification message including the first information, thereby sending the first information to the IoT terminal via the second notification message. Optionally, the IoT terminal receives the second notification message. Optionally, the second notification message may be, for example, an existing NAS notification in the protocol, such as a NAS notification, or may be a new message in the protocol.

[0289] In some implementations, the IoT terminal sends a NAS notification to the access network device, where the NAS notification includes the first information. The access network device sends the NAS notification to the first network element, so that the first network element sends the first information to the IoT terminal through the access network device.

[0290] In some implementations, the second notification message is used by the IoT terminal to send a first response message to the first network element through the access network device.

[0291] Step S2106 : The IoT terminal 101 sends a first response message to the first network element 1031 .

[0292] In some implementations, the IoT terminal may send first response information to the first network element based on the second notification message.

[0293] In some implementations, the first network element may receive the first response information sent by the Internet of Things terminal through the access network device.

[0294] In some embodiments, the IoT terminal sends a second response message to the first network element via the access network device. The second response message includes the first response information, thereby sending the first response information to the first network element via the second response message. Optionally, the first network element receives the second response message sent by the IoT terminal. Optionally, the second response message can be, for example, a NAS notification response already in the protocol, such as a NAS notification response. Optionally, the second response message can also be a response message newly added to the protocol.

[0295] In some implementations, the IoT terminal may send a second response message to the first network element, where the second response message includes the first response information. The first network element may receive the second response message sent by the IoT terminal and obtain the first response information from the second response message.

[0296] In step S2107 , the IoT terminal 101 deletes the digital storage information according to the first information.

[0297] In some implementations, after deleting its own digital storage information, the IoT terminal ensures that the digital storage information will never be retrieved again.

[0298] The communication method according to the embodiments of the present disclosure may include at least one of steps S2101 to S2107. For example, step 2102 may be implemented as an independent embodiment, step 2104 may be implemented as an independent embodiment, step 2105 may be implemented as an independent embodiment, step 2107 may be implemented as an independent embodiment, steps 2105+2106 may be implemented as an independent embodiment, steps 2105+2107 may be implemented as an independent embodiment, and steps 2101+2102+2104+2105+2107 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0299] In some embodiments, steps 2103 and 2104 may be executed in an exchanged order or simultaneously, and steps 2106 and 2107 may be executed in an exchanged order or simultaneously.

[0300] In some embodiments, steps 2103 and 2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0301] In some embodiments, steps 2102 and 2103 are optional, and one or more of these steps may be omitted or replaced in different embodiments. Exemplarily, when the caller and the second network element are the same device, for example, when the caller is an extended function of the second network element, steps S2102 and 2103 may be omitted or replaced. For example, step S2102 may be replaced by the module for generating the first information in the second network element sending the first information to the module for receiving the first information in the second network element, or the caller sending the first information to the module for receiving the first information in the second network element. Step S2103 may be replaced by the module for receiving the first information in the second network element sending a second response message to the module for generating the first information in the second network element.

[0302] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0303] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the present disclosure embodiment relates to a communication method, which is executed by an IoT terminal 101 and includes:

[0304] Step S3101, obtain first information.

[0305] In some embodiments, the Internet of Things terminal receives the first information sent by the first network element through the access network device, but is not limited to this. The first information sent by other entities can also be received through the access network device, or the first information sent by the first network element can be received without going through the access network device, or the first information sent by other entities can be received without going through the access network device.

[0306] In some embodiments, the IoT terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.

[0307] In some implementations, the first information is sent by the second network element to the first network element.

[0308] In some implementations, the first information is sent by the second network element to the first network element through an AM policy control update notification.

[0309] In some embodiments, the first information is sent when the second network element determines that the subscription data of the Internet of Things terminal includes second information allowing the Internet of Things terminal to delete digital storage information.

[0310] In some implementations, the first information is sent to the second network element by a caller, where the caller is at least one of the following:

[0311] Extended functions of IoT application functions, newly added application functions, newly added network elements or extended functions of the second network element.

[0312] In some implementations, the first information is sent by the caller to the second network element through a policy authorization service call request.

[0313] In some implementations, the first information is sent to the second network element when the caller successfully verifies the requester information.

[0314] The optional implementation of step S3101 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0315] Step S3102: Send first response information to the first network element.

[0316] In some embodiments, the Internet of Things terminal sends a first response message to the first network element based on the first information.

[0317] In some embodiments, the Internet of Things terminal sends the first information to the first network element through the access network device, but is not limited to this. The first response information may also be sent to the first network element without going through the access network device.

[0318] The optional implementation of step S3102 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0319] Step S3103, delete the digital storage information.

[0320] In some embodiments, the Internet of Things terminal deletes the digital storage information based on the first information.

[0321] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3103. For example, steps S3101 and S3103 may be implemented as independent embodiments, and steps S3101 to S3103 may be implemented as independent embodiments, but are not limited thereto.

[0322] In some embodiments, steps S3102 and S3103 may be executed in an interchanged order or simultaneously.

[0323] In some embodiments, step S3102 is optional and may be omitted or replaced in different embodiments.

[0324] The optional implementation of step S3103 can refer to the optional implementation of step S2107 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0325] FIG4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4a, the embodiment of the present disclosure relates to a communication method, which is executed by the second network element 1032 and includes:

[0326] Step S4101, obtain first information.

[0327] In some embodiments, when the second network element is independent of the caller, the second network element receives the first information sent by the caller, thereby determining the first information by receiving the first information from the outside, but is not limited to this, and can also receive the first information sent by other entities.

[0328] In some implementations, the first information is used by the IoT terminal to delete digital stored information.

[0329] In some embodiments, the caller obtains first information specified by the protocol.

[0330] In some embodiments, the caller obtains the first information from a high level.

[0331] In some embodiments, the caller performs processing to obtain the second information.

[0332] Optionally, the caller sends the first information.

[0333] In some implementations, the caller is at least one of:

[0334] Extensions of IoT application functions, new application functions, or new network elements.

[0335] In some implementations, the first information is sent to the second network element when the caller successfully verifies the requester information.

[0336] The optional implementation of step S4101 can be found in step S2102 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0337] Step S4102: Send a second response message.

[0338] In some implementations, the second network element sends second response information to the caller.

[0339] The optional implementation of step S4102 can be found in step S2103 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0340] Step S4103: Obtain the contract data of the IoT terminal.

[0341] In some embodiments, the second network element may obtain the subscription data of the IoT terminal from the third network element or the fourth network element.

[0342] In some embodiments, the subscription data includes second information allowing the IoT terminal to delete the digitally stored information.

[0343] The optional implementation of step S4103 can be found in other related parts of the embodiment involved in Figure 2, and will not be repeated here.

[0344] Step S4104, sending the first information.

[0345] In some embodiments, the second network element sends the first information to the first network element, but is not limited thereto, and the first information may also be sent to other entities.

[0346] In some embodiments, when the subscription data includes second information allowing the IoT terminal to delete digital storage information, the second network element sends the first information to the first network element.

[0347] [Corrected 03.08.2023 according to Rule 26] The optional implementation of step S4104 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0348] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4104. For example, step S4102 may be implemented as an independent embodiment, step S4103 may be implemented as an independent embodiment, step S4104 may be implemented as an independent embodiment, step S4101 and step S4104 may be implemented as independent embodiments, step S4101, step S4102, and step S4104 may be implemented as independent embodiments, and step S4101, step S4103, and step S4104 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0349] In some embodiments, steps S4101 to S4103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0350] FIG4 b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 b , the embodiment of the present disclosure relates to a communication method, which is executed by the second network element 1032 and includes:

[0351] Step S4201, determine the first information.

[0352] In some embodiments, when the second network element includes a caller, the second network element may determine to delete the digital storage information of the Internet of Things terminal upon receiving information sent by the requester requesting to delete the digital storage information of the Internet of Things terminal, thereby generating the first information.

[0353] In some implementations, the first information is used by the IoT terminal to delete digital stored information.

[0354] In some embodiments, the caller obtains first information specified by the protocol.

[0355] In some embodiments, the caller obtains the first information from a high level.

[0356] In some embodiments, the caller performs processing to obtain the second information.

[0357] Optionally, the second network element receives information sent by the requester for requesting to delete the digital storage information of the Internet of Things terminal.

[0358] In some implementations, the caller is an extended function of the second network element.

[0359] In some embodiments, the caller in the second network element can receive a deletion request sent by the requester to request the deletion of the digital storage information of the Internet of Things terminal. The deletion request may include the identity of the Internet of Things terminal and the identity of the requester. The caller can determine to delete the digital storage information of the Internet of Things terminal based on the deletion request. The caller can further verify the identity of the requester. If the identity verification of the requester is successful, the first information can be generated.

[0360] The optional implementation of step S4201 can be found in step S2101 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0361] Step S4202: Acquire the contract data of the IoT terminal.

[0362] In some embodiments, the second network element may obtain the subscription data of the IoT terminal from the third network element or the fourth network element.

[0363] In some embodiments, the subscription data includes second information allowing the IoT terminal to delete the digitally stored information.

[0364] The optional implementation of step S4202 can be found in other related parts of the embodiment involved in Figure 2, and will not be repeated here.

[0365] Step S4203, sending the first information.

[0366] In some embodiments, the second network element sends the first information to the first network element, but is not limited thereto, and the first information may also be sent to other entities.

[0367] In some embodiments, when the subscription data includes second information allowing the IoT terminal to delete digital storage information, the second network element sends the first information to the first network element.

[0368] [Corrected 03.08.2023 according to Rule 26] The optional implementation of step S4203 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0369] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4201 to S4203. For example, step S4201 may be implemented as an independent embodiment, step S4202 may be implemented as an independent embodiment, step S4203 may be implemented as an independent embodiment, step S4201 and step S4203 may be implemented as independent embodiments, and step S4201, step S4202, and step S4203 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0370] In some embodiments, step S4202 is optional and may be omitted or replaced in different embodiments.

[0371] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a communication method, which is executed by the first network element 1031 and includes:

[0372] Step S5101, obtain first information.

[0373] In some embodiments, the first network element receives the first information sent by the second network element, but is not limited thereto and may also receive the first information sent by other entities.

[0374] In some implementations, the first information is sent by the second network element to the first network element through an AM policy control update notification.

[0375] In some embodiments, the first information is sent to the first network element when the second network element determines that the subscription data of the Internet of Things terminal includes the second information allowing the Internet of Things terminal to delete the digital storage information.

[0376] In some implementations, the first information is used by the IoT terminal to delete digital stored information.

[0377] In some implementations, the caller is at least one of:

[0378] Extended functions of IoT application functions, newly added application functions, newly added network elements or extended functions of the second network element.

[0379] In some implementations, the first information is sent by the caller to the second network element through a policy authorization service call request.

[0380] In some implementations, the first information is sent to the second network element when the caller successfully verifies the requester information.

[0381] The optional implementation of step S5101 can be found in step S2104 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0382] Step S5102, sending the first information.

[0383] In some embodiments, the first network element sends the first information to the Internet of Things terminal through the access network device, but is not limited to this. The first information can also be sent to the Internet of Things terminal through other entities, or the first information can be sent to the Internet of Things terminal without going through the access network device.

[0384] [Corrected 03.08.2023 according to Rule 26] The optional implementation of step S5102 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0385] Step S5103: Receive first response information.

[0386] In some implementations, the IoT terminal sends a first response message to the first network element.

[0387] In some implementations, the first response information is sent by the IoT terminal according to the first information.

[0388] [Corrected 03.08.2023 according to Rule 26] The optional implementation of step S5103 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0389] The communication method involved in the embodiments of the present disclosure may include at least one of steps S5101 to S5103. For example, step S5101 may be implemented as an independent embodiment, step S5102 may be implemented as an independent embodiment, step S5103 may be implemented as an independent embodiment, step S5101 and step S5102 may be implemented as independent embodiments, and step S5102 and step S5103 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0390] In some embodiments, steps S5101 and S5103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0391] FIG6a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6a, the embodiment of the present disclosure relates to a communication method, which is executed by the caller 104 and includes:

[0392] Step S6101, obtain requester information.

[0393] The optional implementation of step S6101 can be found in step S2101 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0394] Step S6102, determine the first information.

[0395] In some embodiments, the caller determines to delete the digital storage information of the Internet of Things terminal and generates the first information, thereby determining the first information.

[0396] In some embodiments, the caller determines to delete the digital storage information of the Internet of Things terminal, and generates the first information when the requester information is verified, so that the first information can be determined.

[0397] In some implementations, the caller is at least one of:

[0398] Extensions of IoT application functions, new application functions, or new network elements.

[0399] The optional implementation of step S6102 can be found in step S2101 of FIG. 2 and other related parts of the embodiments involved in FIG. 2 , FIG. 4 a , and FIG. 4 b , and will not be described in detail here.

[0400] Step S6103, sending the first information.

[0401] In some implementations, the calling party sends the first information to the second network element.

[0402] The optional implementation of step S6103 can be found in step S2102 of FIG. 2 and other related parts of the embodiments involved in FIG. 2 , FIG. 4 a , and FIG. 4 b , which will not be described in detail here.

[0403] Step S6104: Receive the second response information.

[0404] In some implementations, the caller receives second response information sent by the second network element.

[0405] The optional implementation of step S6104 can be found in step S2103 of FIG. 2 and other related parts of the embodiments involved in FIG. 2 , FIG. 4 a , and FIG. 4 b , which will not be described in detail here.

[0406] The communication method involved in the embodiments of the present disclosure may include at least one of steps S6101 to S6104. For example, step S6102 may be implemented as an independent embodiment, step S6103 may be implemented as an independent embodiment, and step S6104 may be implemented as an independent embodiment. Steps S6102 and S6103 may be implemented as independent embodiments, steps S6101 to S6103 may be implemented as independent embodiments, and steps S6102 to S6104 may be implemented as independent embodiments, but are not limited thereto.

[0407] In some embodiments, steps S6101 and S6104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0408] In some implementations, steps S6101 and S6102 may be performed in an interchanged order or simultaneously.

[0409] FIG6b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6b, the present disclosure embodiment relates to a communication method, which is executed by the caller 104 and includes:

[0410] Step S6201, obtain requester information.

[0411] The optional implementation of step S6201 can be found in step S2101 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0412] Step S6202, determine the first information.

[0413] In some embodiments, the caller determines to delete the digital storage information of the Internet of Things terminal and generates the first information.

[0414] In some embodiments, the caller determines to delete the digital storage information of the Internet of Things terminal, and generates the first information when the requester information is verified.

[0415] In some implementations, the caller is an extended function of the second network element.

[0416] The optional implementation of step S6202 can be found in step S2101 of FIG. 2 and other related parts of the embodiments involved in FIG. 2 , FIG. 4 a , and FIG. 4 b , which will not be described in detail here.

[0417] Step S6203, sending the first information.

[0418] In some implementations, the calling party sends the first information to a module in the second network element for receiving the first information, so that the second network element can further send the first information.

[0419] The optional implementation of step S6203 can be found in step S2101 of FIG. 2 and other related parts of the embodiments involved in FIG. 2 , FIG. 4 a , and FIG. 4 b , which will not be described in detail here.

[0420] The communication method according to the embodiments of the present disclosure may include at least one of steps S6201 to S6203. For example, step S6202 may be implemented as an independent embodiment, step S6203 may be implemented as an independent embodiment, step S6202 and step S6203 may be implemented as independent embodiments, and steps S6201 to S6202 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0421] In some embodiments, steps S6201 and S6203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0422] In some implementations, steps S6201 and S6202 may be performed in an interchanged order or simultaneously.

[0423] FIG7a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7a, the embodiment of the present disclosure relates to a communication method for use in a communication system 100a, 100b or 100d, the method comprising:

[0424] Step S7101: The caller determines to delete the digital storage information of the Internet of Things terminal and generates first information.

[0425] Step S7102: The calling direction sends the first information to the second network element.

[0426] Step S7103: The second network element sends the first information to the first network element.

[0427] Step S7104: The first network element sends the first message to the IoT terminal.

[0428] Step S7105: The IoT terminal deletes the digital storage information according to the first information.

[0429] The optional implementation methods of steps S7101 to S7105 can be found in the relevant parts of the embodiments involved in Figures 2 to 6, and will not be repeated here.

[0430] FIG7b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7b, the embodiment of the present disclosure relates to a communication method for a communication system 100c, the method comprising:

[0431] Step S7201: The second network element generates first information.

[0432] Step S7202: The second network element sends first information to the first network element.

[0433] Step S7203: The first network element sends first information to the Internet of Things terminal.

[0434] Step S7204: The IoT terminal deletes the digital storage information according to the first information.

[0435] The optional implementation methods of steps S7201 to S7204 can be found in the relevant parts of the embodiments involved in Figures 2 to 6, and will not be repeated here.

[0436] In some embodiments, the above method may include the methods of the embodiments of the above communication system side, Internet of Things terminal side, first network element side, second network element side, caller side, etc., which will not be repeated here.

[0437] FIG7c is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7c, the embodiment of the present disclosure relates to a communication method, which is executed by the core network device 103. The method includes:

[0438] Step S7301: The core network device determines the first information.

[0439] In some implementations, the first information is used by the IoT terminal to delete digital stored information.

[0440] In some implementations, the core network device may determine the first information through the second network element.

[0441] The optional implementation of step S7301 can be found in step S2101 of FIG. 2 , and other related parts of the embodiments involved in FIG. 2 , FIG. 4 a , FIG. 4 b , and FIG. 6 , which will not be described in detail here.

[0442] Step S7302: The core network device sends the first information.

[0443] In some implementations, the core network device may send the first information to the IoT terminal through the access network device, but is not limited thereto, and may also send the first response information to the first network element without going through the access network device.

[0444] The optional implementation of step S7302 can be found in step S2105 of FIG. 2 and other related parts of the embodiments involved in FIG. 2 , FIG. 4 a , and FIG. 4 b , which will not be described in detail here.

[0445] Step S7303: The core network device receives the first response information.

[0446] In some implementations, the core network device may receive the first response information sent by the IoT terminal.

[0447] The optional implementation of step S7302 can be found in step S2107 of FIG. 2 and other related parts of the embodiments involved in FIG. 2 , FIG. 4 a , and FIG. 4 b , which will not be described in detail here.

[0448] The communication method involved in the embodiments of the present disclosure may include at least one of steps S7301 to S7303. For example, step S7301 may be implemented as an independent embodiment, step S7302 may be implemented as an independent embodiment, step S7303 may be implemented as an independent embodiment, step S7302 and step S7303 may be implemented as independent embodiments, and steps S7301 to S7302 may be implemented as independent embodiments, but are not limited thereto.

[0449] In some embodiments, steps S7301 and S7303 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0450] Figure 7d is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 7d, the present disclosure embodiment relates to a communication method, which is executed by a core network device 103, which includes a first network element 1031, a second network element 1032, etc. The method includes:

[0451] Step S7401: The second network element determines the first information.

[0452] In some implementations, the first information is used by the IoT terminal to delete digital stored information.

[0453] Step S7402: The second network element sends first information to the first network element.

[0454] Step S7403: The first network element sends first information to the Internet of Things terminal.

[0455] Step S7404: The first network element receives first response information.

[0456] The optional implementation methods of steps S7401 to S7404 can be found in the relevant parts of the embodiments involved in Figures 2 to 6, and will not be repeated here.

[0457] In some embodiments, the above method may include the above methods of the related embodiments on the first network element side, the second network element side, the calling party side, etc., which will not be repeated here.

[0458] FIG8 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG8 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0459] Step S8101: UE (A-IoT device / tag) sends a registration request to NG-RAN.

[0460] Optionally, the registration request includes registration type, SUCI or 5G-GUTI or PEI, and security parameters.

[0461] Optionally, the UE may be an environmental IoT terminal.

[0462] Step S8102: NG-RAN initiates N2 setup (initial UE message) to AMF.

[0463] Optionally, the registration request shall be included in the N2 setup request from the NG-RAN to the AMF.

[0464] Step S8103: AMF performs AM policy association establishment / modification.

[0465] In some embodiments, if the new AMF selects a new PCF, the new AMF performs AM policy association establishment with the selected PCF.

[0466] In some embodiments, if the PCF identified by the PCF ID contained in the UE context of the old AMF is used, the new AMF performs AM policy association modification with that PCF.

[0467] In some embodiments, if the AMF notifies the PCF of mobility restrictions (e.g., UE location) for adjustment, or the PCF updates the mobility restrictions on its own due to certain conditions (e.g., application in use, time and date), the PCF shall provide the updated mobility restrictions to the AMF. If the subscription information includes a tracking request, the AMF shall provide the tracking request to the PCF.

[0468] In step S8104, the AMF sends a registration acceptance to the UE via the NG-RAN.

[0469] In some implementations, after receiving the N2 Setup Request and Registration Request, the AMF may authenticate and authorize the UE. After authentication and authorization, the AMF sends a Registration Accept to the UE via the NG-RAN.

[0470] Step S8105: IDMF calls the policy authorization (Npcf_PolicyAuthorization) service to PCF, which includes the "delete all digital storage information" instruction.

[0471] In some embodiments, if the IDMF receives a request to “delete all digital stored information” from a trusted third party, such as the owner of the IoT device, the IDMF may call the Npcf_PolicyAuthorization service to the PCF.

[0472] In step S8106, the PCF responds to the AF (IDMF) for the Npcf_PolicyAuthorization service.

[0473] In some implementations, the PCF may respond to the AF (IDMF) for a successful Npcf_PolicyAuthorization service.

[0474] In step S8107, the PCF sends an AM policy control update notification (Npcf_AMPolicyControl_UpdateNotify) to the AMF, including an indication of "deleting all digital storage information".

[0475] In some embodiments, Npcf_AMPolicyControl_UpdateNotify may also include an AM policy association ID associated with the SUPI, a service area limit, a UE-AMBR, an RFSP index value, an access layer time distribution indication, a Uu time synchronization error budget, and a "delete all digital storage information" indication.

[0476] In step S8108, the AMF sends a NAS notification to the UE, which includes a "delete all digital storage information" instruction.

[0477] Step S8109: When the UE receives the NAS notification, the UE replies with a NAS notification response to the AMF.

[0478] In some implementations, when the UE receives a NAS Notification, it shall reply a NAS Notification Response to the AMF.

[0479] Step S8110: The UE deletes all digital storage information.

[0480] In one example, the UE deletes all digital storage information by formatting its storage, so that the digital storage information in the IoT terminal may never be obtained again.

[0481] The communication method involved in the embodiment of the present disclosure may include at least one of steps S8101 to S8110. For example, steps S8105, S8107, S8108, and S81109 may be implemented as independent embodiments, and steps S8105 to S8110 may be implemented as independent embodiments, but are not limited thereto.

[0482] In some embodiments, steps S8106 and S8107 may be executed in an exchanged order or simultaneously, and steps S8108 and S8109 may be executed in an exchanged order or simultaneously.

[0483] In some embodiments, steps S8101 to S8104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0484] In some embodiments, steps S8106 and S8109 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0485] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0486] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0487] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0488] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0489] Figure 9a is a schematic diagram of the structure of the Internet of Things terminal provided by an embodiment of the present disclosure. As shown in Figure 9a, the Internet of Things terminal 9100 may include: at least one of a transceiver module 9101, a processing module 9102, etc. In some embodiments, the above-mentioned transceiver module 9101 is used to receive a first message sent by a network device. The above-mentioned processing module 9102 is used to delete digital storage information based on the first information. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving executed by the Internet of Things terminal in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps executed by the Internet of Things terminal in any of the above methods, which will not be repeated here.

[0490] Figure 9b is a schematic diagram of the structure of the second network element provided by an embodiment of the present disclosure. As shown in Figure 9b, the second network element 9200 may include: at least one of a transceiver module 9201, a processing module 9202, etc. In some embodiments, the above-mentioned transceiver module 9201 is used for the second network element to send a first message, and the first message is used for the Internet of Things terminal to delete digital storage information. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving executed by the second network element in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps executed by the second network element in any of the above methods, which will not be repeated here.

[0491] Figure 9c is a schematic diagram of the structure of the first network element provided by an embodiment of the present disclosure. As shown in Figure 9c, the first network element 9300 may include: at least one of a transceiver module 9301, a processing module 9302, etc. In some embodiments, the above-mentioned transceiver module 9301 is used by the first network element to send first information to the Internet of Things terminal, and the first information is used by the Internet of Things terminal to delete digital storage information. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving executed by the first network element in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps executed by the first network element in any of the above methods, which will not be repeated here.

[0492] Figure 9d is a structural diagram of the caller provided by an embodiment of the present disclosure. As shown in Figure 9d, the caller 9400 may include: at least one of a transceiver module 9401, a processing module 9402, etc. In some embodiments, the above-mentioned transceiver module 9401 is used to send the first information to the second network element, and the first information is used for the Internet of Things terminal to delete the digital storage information. The above-mentioned processing module 9402 is used by the caller to determine to delete the digital storage information of the Internet of Things terminal and generate the first information. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving executed by the caller in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps executed by the caller in any of the above methods, which will not be repeated here.

[0493] Figure 9e is a structural diagram of the core network device provided by an embodiment of the present disclosure. As shown in Figure 9e, the core network device 9500 may include: at least one of a transceiver module 9501, a processing module 9502, etc. In some embodiments, the above-mentioned transceiver module 9501 is used to send the first information to the Internet of Things terminal, and the first information is used for the Internet of Things terminal to delete the digital storage information. The above-mentioned processing module 9502 is used for the core network device to determine the first information. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving executed by the core network device in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps executed by the core network device in any of the above methods, which will not be repeated here.

[0494] Figure 10A is a schematic diagram of the structure of a communication device 10100 proposed in an embodiment of the present disclosure. Communication device 10100 can be a network device (e.g., an access network device, a core network device, a first network element, a second network element, a caller, etc.), or a terminal (e.g., a user device, an Internet of Things terminal, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 10100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0495] As shown in FIG10A , a communication device 10100 includes one or more processors 10101. Processor 10101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control a communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute programs, and process program data. The communication device 10100 is used to perform any of the above methods.

[0496] In some embodiments, the communication device 10100 further includes one or more memories 10102 for storing instructions. Optionally, all or part of the memory 10102 may be located outside the communication device 10100.

[0497] In some embodiments, the communication device 10100 further includes one or more transceivers 10103. When the communication device 10100 includes one or more transceivers 10103, the transceiver 10103 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 10101 performs at least one of the other steps.

[0498] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0499] In some embodiments, the communication device 10100 may include one or more interface circuits 10104. Optionally, the interface circuit 10104 is connected to the memory 10102. The interface circuit 10104 may be configured to receive signals from the memory 10102 or other devices, or to send signals to the memory 10102 or other devices. For example, the interface circuit 10104 may read instructions stored in the memory 10102 and send the instructions to the processor 10101.

[0500] The communication device 10100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 10100 described in the present disclosure is not limited thereto, and the structure of the communication device 10100 may not be limited by FIG. 10A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0501] 10B is a schematic diagram of the structure of a chip 10200 according to an embodiment of the present disclosure. If the communication device 10100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 10200 shown in FIG10B , but the present disclosure is not limited thereto.

[0502] Chip 10200 includes one or more processors 10201, and chip 10200 is used to execute any of the above methods.

[0503] In some embodiments, chip 10200 further includes one or more interface circuits 10202. Optionally, interface circuit 10202 is connected to memory 10203. Interface circuit 10202 can be used to receive signals from memory 10203 or other devices, or to send signals to memory 10203 or other devices. For example, interface circuit 10202 can read instructions stored in memory 10203 and send the instructions to processor 10201.

[0504] In some embodiments, the interface circuit 10202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 10201 performs at least one of the other steps.

[0505] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0506] In some embodiments, the chip 10200 further includes one or more memories 10203 for storing instructions. Alternatively, all or part of the memories 10203 may be outside the chip 10200.

[0507] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the communication device 10100, the communication device 10100 is caused to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0508] The present disclosure also provides a program product, which, when executed by the communication device 10100, enables the communication device 10100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0509] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that: The method comprises: receiving first information sent by a network device; The digital storage information is deleted according to the first information.

2. The method according to claim 1, characterized in that The network device includes a first network element and a second network element, and the receiving first information sent by the network device includes: The first information sent by the first network element is received, where the first information is sent by the second network element to the first network element.

3. The method according to claim 1, characterized in that The network device includes a first network element and a second network element, and the receiving first information sent by the network device includes: Receive the first information sent by the first network element, where the first information is sent by the second network element to the first network element through an access management AM policy control update notification.

4. The method according to claim 2 or 3, characterized in that: The receiving the first information sent by the first network element includes: Receive a non-access stratum NAS notification sent by the first network element, where the NAS notification includes the first information.

5. The method according to any one of claims 2 to 4, characterized in that: The method further comprises: According to the first information, first response information is sent to the first network element.

6. The method according to any one of claims 2 to 5, characterized in that: The first information is sent when the second network element determines that the contract data of the Internet of Things terminal includes second information allowing the Internet of Things terminal to delete digital storage information.

7. The method according to any one of claims 2 to 6, characterized in that: The first information is sent to the second network element by a caller, and the caller is at least one of the following: The extended functions of the Internet of Things application functions, the newly added application functions, the newly added network elements or the extended functions of the second network elements.

8. The method according to claim 7, characterized in that The first information is sent by the caller to the second network element through a policy authorization service call request.

9. The method according to claim 7 or 8, characterized in that: The first information is sent to the second network element when the caller successfully verifies the requester information.

10. A communication method, characterized in that: The method comprises: The second network element sends first information, where the first information is used by the Internet of Things terminal to delete digital storage information.

11. The method according to claim 10, characterized in that The sending of the first information includes: The first information is sent to a first network element, where the first network element is used to send the first information to the Internet of Things terminal.

12. The method according to claim 10, characterized in that The sending of the first information includes: An access management AM policy control update notification is sent to the first network element, where the AM policy control update notification includes the first information, and the AM policy control update notification is used by the first network element to send the first information to the Internet of Things terminal.

13. The method according to any one of claims 10 to 12, characterized in that: The sending of the first information includes: Obtaining the contract data of the Internet of Things terminal; The first information is sent, wherein the contract data includes second information allowing the Internet of Things terminal to delete digital storage information.

14. The method according to any one of claims 10 to 13, characterized in that: The method further comprises: Receive first information sent by a caller, where the caller is at least one of the following: The extended functions of the Internet of Things application functions, the newly added application functions, the newly added network elements or the extended functions of the second network elements.

15. The method according to claim 14, characterized in that The receiving first information sent by the caller includes: A policy authorization service invocation request sent by the caller is received, where the policy authorization service invocation request includes the first information.

16. The method according to claim 15, characterized in that The method further comprises: A policy authorization service response message is sent to the caller.

17. The method according to any one of claims 10 to 16, characterized in that: The first information is sent to the second network element when the caller verifies the requester information.

18. A communication method, characterized in that: The method comprises: The first network element sends first information to the Internet of Things terminal, where the first information is used by the Internet of Things terminal to delete digital storage information.

19. The method according to claim 18, characterized in that The sending of the first information to the Internet of Things terminal includes: Send a non-access layer NAS notification to the Internet of Things terminal, where the NAS notification includes the first information.

20. The method according to claim 18 or 19, characterized in that The method further comprises: Receive first response information sent by the Internet of Things terminal, where the first response information is sent by the Internet of Things terminal according to the first information.

21. The method according to any one of claims 18 to 20, characterized in that: The first information is sent by the second network element to the first network element through an AM policy control update notification.

22. The method according to any one of claims 18 to 21, characterized in that: The first information is sent to the first network element when the second network element determines that the contract data of the Internet of Things terminal includes the second information allowing the Internet of Things terminal to delete the digital storage information.

23. The method according to claim 21 or 22, characterized in that The first information is sent to the second network element by a caller, and the caller is at least one of the following: The extended functions of the Internet of Things application functions, the newly added application functions, the newly added network elements or the extended functions of the second network elements.

24. The method according to claim 23, characterized in that The first information is sent by the caller to the second network element through a policy authorization service call request.

25. The method according to claim 23 or 24, characterized in that The first information is sent to the second network element when the caller successfully verifies the requester information.

26. A communication method, characterized in that: The method comprises: The caller determines to delete the digital storage information of the IoT terminal and generates the first information; The first information is sent to the second network element, where the first information is used by the Internet of Things terminal to delete the digital storage information.

27. The method according to claim 26, characterized in that The sending the first information to the second network element includes: A policy authorization service invocation request is sent to the second network element, where the policy authorization service invocation request includes the first information.

28. The method according to claim 27, characterized in that The method further comprises: Receive a policy authorization service response message sent by the second network element.

29. The method according to any one of claims 26 to 28, characterized in that: The caller is at least one of the following: Extended functions of IoT application functions, new application functions or new network elements.

30. The method according to any one of claims 26 to 29, characterized in that: The sending the first information to the second network element includes: Get requester information; The requesting party information is verified and the first information is sent to the second network element.

31. A communication method, characterized in that: The method comprises: The core network device determines the first information; The first information is sent to an Internet of Things terminal, where the first information is used by the Internet of Things terminal to delete digital storage information.

32. A communication method, characterized in that: The method comprises: The second network element determines the first information; The second network element sends the first information to the first network element; The first network element sends the first information to the Internet of Things terminal; The Internet of Things terminal deletes the digital storage information according to the first information.

33. An Internet of Things terminal, characterized in that: include: A transceiver module receives first information sent by a network device; The processing module deletes the digital storage information according to the first information.

34. A first network element, characterized in that: include: The transceiver module is used for the first network element to send first information to the Internet of Things terminal, and the first information is used for the Internet of Things terminal to delete the digital storage information.

35. A second network element, characterized in that: include: The transceiver module is used for the second network element to send the first information, and the first information is used for the Internet of Things terminal to delete the digital storage information.

36. A caller, characterized in that: include: A processing module, used for the caller to determine to delete the digital storage information of the Internet of Things terminal and generate first information; The transceiver module is used to send the first information to the second network element, and the first information is used for the Internet of Things terminal to delete the digital storage information.

37. A core network device, characterized in that: include: A processing module, used for a core network device to determine the first information; The transceiver module is used to send the first information to the Internet of Things terminal, and the first information is used by the Internet of Things terminal to delete the digital storage information.

38. A communication device, characterized in that: include: one or more processors; The processor is used to call computer instructions so that the communication device executes the communication method described in any one of claims 1-9, or claims 10-17, or claims 18-25, or claims 26-30, or claim 31.

39. A communication system, characterized in that: It includes an Internet of Things terminal, a first network element, a second network element and a caller, wherein the Internet of Things terminal is configured to implement the communication method described in any one of claims 1-9, the second network element is configured to implement the communication method described in any one of claims 10-17, the first network element is configured to implement the communication method described in any one of claims 18-25, and the caller is configured to implement the communication method described in any one of claims 26-30.

40. A storage medium storing computer instructions, characterized in that: When the computer instructions are executed on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 9, claims 10 to 17, claims 18 to 25, claims 26 to 30, or claim 31.

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