Network access method and apparatus, and device, storage medium and program product

Abstract

The present application relates to a network access method and apparatus, and a device, a storage medium and a program product. The method comprises: a terminal receiving an indication message, wherein the indication message carries the tariff state of a SIM card of the terminal (S201); and on the basis of the tariff state of the SIM card in the indication message, determining to initiate or stopping initiating an access request to a network (S202).

Description

Network access methods, devices, equipment, storage media and software products

[0001] Related applications

[0002] This application claims priority to Chinese patent application filed on October 22, 2024, with application number 2024114728906, entitled "Network access method, apparatus, device, storage medium and program product", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of communication technology, and in particular to a network access method, apparatus, device, storage medium, and program product. Background Technology

[0004] In the field of communications, a Subscriber Identity Module (SIM) is inserted into mobile phones, wearable devices, and various IoT terminal devices to enable communication between the terminal and the wireless network.

[0005] In communication scenarios, a terminal device initiates a network access request to the network. The network can choose to accept or reject the terminal device's access based on the SIM card tariff status. In related technologies, even when the network rejects the terminal device's access due to the SIM card tariff status, the terminal will still initiate a network access request to the network or other mobile networks of the same standard, resulting in the consumption of a large amount of air interface communication capacity. Summary of the Invention

[0006] This application provides a network access method, apparatus, device, storage medium, and program product.

[0007] In a first aspect, this application provides a network access method applied to a terminal, the method comprising:

[0008] Receive instruction messages; the instruction messages carry the tariff status of the terminal SIM card;

[0009] Based on the SIM card's tariff status in the instruction message, determine or stop initiating access requests to the network.

[0010] In one embodiment, the content of the instruction message includes:

[0011] An access indication message corresponding to the SIM card's tariff status; or,

[0012] The reason value for access denial corresponding to the SIM card's tariff status.

[0013] In one embodiment, the information type indicating the message includes at least one of the following:

[0014] The first signaling interaction information sent by the core network;

[0015] The second signaling interaction information sent by the base station;

[0016] SMS service messages sent by the operator;

[0017] Bluetooth information sent by the Bluetooth transmitter;

[0018] Wireless network push information sent by the wireless network transmitter.

[0019] In one embodiment, the information type of the first signaling interaction information includes at least one of the following:

[0020] The response information for the attached or registered message, including a rejection response message or an acceptance response message;

[0021] Response information for mobile attachment or mobile registration messages, including rejection or acceptance response messages;

[0022] Track the response information for region update messages;

[0023] Configuration update information, which includes dedicated configuration update or general configuration update procedures;

[0024] Paging information;

[0025] The response message to the service request information includes whether the service request is rejected or accepted.

[0026] In one embodiment, the information type of the second signaling interaction information includes RRC process information, which includes at least one of the following:

[0027] RRC establishment process;

[0028] RRC reconfiguration process;

[0029] RRC recovery process.

[0030] In one embodiment, the SIM card's tariff status includes normal tariff or abnormal tariff.

[0031] In one embodiment, abnormal charges include at least one of the following:

[0032] You can still use the internet service even if you are overdue on your bill.

[0033] You cannot use network services if you are in arrears, but you can still access the network.

[0034] Unable to access the network due to unpaid bills;

[0035] Shutdown;

[0036] Cancel the account.

[0037] In one embodiment, the indication message is the first signaling interaction information sent by the AMF network element; the access request includes a registration request and a service request; based on the SIM card's tariff status in the indication message, the system determines or stops initiating an access request to the network, including any of the following actions:

[0038] If the SIM card's tariff status is normal, a registration request and a service request are sent to the AMF network element.

[0039] If the SIM card's tariff status is in a state of being in arrears but still able to use network services, a registration request and a service request are sent to the AMF network element.

[0040] If the SIM card's payment status is in arrears and network services are unavailable but network access is still possible, then stop sending service requests to AMF network elements;

[0041] If the SIM card's payment status is in arrears and unable to access the network, then stop sending registration requests to the AMF network element;

[0042] If the SIM card's service status is suspended, then stop sending registration requests to the AMF network element;

[0043] If the SIM card's service status is cancelled, then the sending of registration requests to the AMF network element will be stopped.

[0044] In one embodiment, the indication message is second signaling interaction information sent by the base station; the access request includes RRC procedure information; the RRC procedure information is any one of RRC connection establishment request, RRC reconfiguration request, and RRC recovery request; based on the SIM card's tariff status in the indication message, the system determines or stops initiating an access request to the network, including any of the following actions:

[0045] If the SIM card's tariff status is normal, then an access request is sent to the base station;

[0046] If the SIM card's data plan is in a state of being in arrears but still able to use network services, then an access request is sent to the base station;

[0047] If the SIM card's data plan is in a state of being unpaid and unable to use network services but still able to access the network, then stop sending access requests to the base station;

[0048] If the SIM card's data plan is in a state of non-payment and unable to access the network, then stop sending access requests to the base station;

[0049] If the SIM card's service status is suspended, then stop sending access requests to the base station;

[0050] If the SIM card's service status is cancelled, then the system will stop sending access requests to the base station.

[0051] In one embodiment, the method further includes:

[0052] Receive updated SIM card tariff status;

[0053] If the updated tariff status indicates that the SIM card is available, an access request is initiated to the network.

[0054] In one embodiment, receiving the updated tariff status of the SIM card includes:

[0055] Receive paging messages based on SIM card tariffs sent by AMF network elements; the paging messages carry the updated tariff status of the SIM card.

[0056] In one embodiment, the method further includes:

[0057] If the terminal is detected to be powered on / off or restarted, or if the SIM card is reinserted, the SIM card's tariff status is saved.

[0058] Secondly, this application provides a network access method applied to a network, the method comprising:

[0059] Send an instruction message to the terminal; the instruction message carries the tariff status of the terminal's SIM card; the instruction message is used to instruct the terminal to determine or stop initiating an access request to the network based on the tariff status of the SIM card.

[0060] In one embodiment, the content of the instruction message includes:

[0061] An access indication message corresponding to the SIM card's tariff status; or,

[0062] The reason value for access denial corresponding to the SIM card's tariff status.

[0063] In one embodiment, the SIM card's tariff status includes normal tariff or abnormal tariff.

[0064] In one embodiment, abnormal charges include at least one of the following:

[0065] You can still use the internet service even if you are overdue on your bill.

[0066] You cannot use network services if you are in arrears, but you can still access the network.

[0067] Unable to access the network due to unpaid bills;

[0068] Shutdown;

[0069] Cancel the account.

[0070] In one embodiment, the network is an AMF network element that sends an indication message to the terminal, including:

[0071] Send the first signaling interaction information to the terminal; the first signaling interaction information carries an instruction message.

[0072] In one embodiment, the information type of the first signaling interaction information includes at least one of the following:

[0073] The response information for the attached or registered message, including a rejection response message or an acceptance response message;

[0074] Response information for mobile attachment or mobile registration messages, including rejection or acceptance response messages;

[0075] Track the response information for region update messages;

[0076] Configuration update information, which includes dedicated configuration update or general configuration update procedures;

[0077] Paging information;

[0078] The response message to the service request information includes whether the service request is rejected or accepted.

[0079] In one embodiment, the network is a base station, which sends an indication message to the terminal, including:

[0080] Send a second signaling interaction message to the terminal; the second signaling interaction message carries an instruction message.

[0081] In one embodiment, the information type of the second signaling interaction information includes at least one of the following:

[0082] RRC establishment process;

[0083] RRC reconfiguration process;

[0084] RRC recovery process.

[0085] In one embodiment, the network is an AMF network element, and the method further includes the following steps before sending an indication message to the terminal:

[0086] Acquire data and save the tariff status of the SIM card in the network element;

[0087] The SIM card's tariff status is encapsulated to obtain the first signaling interaction information.

[0088] In one embodiment, obtaining the tariff status of the SIM card in the data storage network element includes any of the following:

[0089] Read the SIM card's tariff status from the data storage network element;

[0090] The received data saves the SIM card's tariff status sent by the network element.

[0091] In one embodiment, the data storage network element includes any one of the UDM network element, HSS network element, and UDR network element.

[0092] Thirdly, this application provides a network access method applied to a data storage network element, the method comprising:

[0093] The terminal sends the SIM card's tariff status to the AMF network element, instructing the AMF network element to send the SIM card's tariff status to the terminal; the SIM card's tariff status is used to instruct the terminal to confirm or stop initiating an access request to the network.

[0094] In one embodiment, the data storage network element includes any one of the UDM network element, HSS network element, and UDR network element.

[0095] Fourthly, this application provides a network access device, which includes:

[0096] The information receiving module is used to receive indication messages; the indication messages carry the tariff status of the terminal SIM card.

[0097] The instruction response module is used to determine or stop initiating access requests to the network based on the SIM card's tariff status in the instruction message.

[0098] Fifthly, this application provides a network access device, which includes:

[0099] The information sending module is used to send an instruction message to the terminal; the instruction message carries the tariff status of the terminal's SIM card; the instruction message is used to instruct the terminal to determine or stop initiating an access request to the network based on the tariff status of the SIM card.

[0100] Sixthly, this application provides a network access device, the device comprising:

[0101] The information delivery module is used to send the tariff status of the SIM card in the terminal to the AMF network element, so as to instruct the AMF network element to send the tariff status of the SIM card to the terminal; the tariff status of the SIM card is used to instruct the terminal to confirm or stop initiating an access request to the network.

[0102] In a seventh aspect, this application provides a communication device, including: a receiver and a processor;

[0103] The receiver is used to receive indication messages; the indication messages carry the tariff status of the terminal's SIM card.

[0104] The processor is used to determine or stop initiating access requests to the network based on the SIM card's tariff status in the instruction message.

[0105] Eighthly, this application provides a communication device, including: a transmitter;

[0106] The transmitter is used to send an indication message to the terminal; the indication message carries the tariff status of the terminal's SIM card; the indication message is used to instruct the terminal to determine or stop initiating an access request to the network based on the tariff status of the SIM card.

[0107] Ninthly, this application provides a communication device, including: a transmitter;

[0108] The transmitter is used to send the tariff status of the SIM card in the terminal to the AMF network element, so as to instruct the AMF network element to send the tariff status of the SIM card to the terminal; the tariff status of the SIM card is used to instruct the terminal to confirm or stop initiating an access request to the network.

[0109] In a tenth aspect, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method in any of the embodiments of the first to third aspects described above.

[0110] In one aspect, this application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the method in any of the embodiments of the first to third aspects described above. Attached Figure Description

[0111] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0112] Figure 1 is an application environment diagram of a network access method in one embodiment of this application;

[0113] Figure 2 is a flowchart illustrating a network access method in one embodiment of this application;

[0114] Figure 3 is a flowchart illustrating the network access request initiation steps in one embodiment of this application;

[0115] Figure 4 is a flowchart illustrating a network access method in another embodiment of this application;

[0116] Figure 5 is a flowchart illustrating the signaling interaction information acquisition steps in one embodiment of this application;

[0117] Figure 6 is a flowchart illustrating a network access method in another embodiment of this application;

[0118] Figure 7 is a schematic diagram of signaling interaction of a network access method in one embodiment of this application;

[0119] Figure 8 is a schematic diagram of signaling interaction of a network access method in another embodiment of this application;

[0120] Figure 9 is a schematic diagram of signaling interaction of a network access method in another embodiment of this application;

[0121] Figure 10 is a schematic diagram of signaling interaction of a network access method in another embodiment of this application;

[0122] Figure 11 is a structural block diagram of a network access device in one embodiment of this application;

[0123] Figure 12 is a structural block diagram of a network access device in another embodiment of this application;

[0124] Figure 13 is a structural block diagram of a network access device in another embodiment of this application;

[0125] Figure 14 is an internal structure diagram of a terminal device in one embodiment of this application;

[0126] Figure 15 is an internal structural diagram of a terminal device in another embodiment of this application;

[0127] Figure 16 is an internal structure diagram of a terminal device in another embodiment of this application. Detailed Implementation

[0128] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0129] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0130] Figure 1 is a schematic diagram of an application scenario of a network access method provided in an embodiment of this application. As shown in Figure 1, the scenario includes a terminal side and a network side. The terminal side includes a terminal 100, and the network side includes an access network device 200, which can be an access and mobility management function network element, a base station, etc. Data transmission between the terminal 100 and the access network device 200 occurs via the network.

[0131] Terminal 100 may be a wireless terminal, which can be a device providing voice and / or other service data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) or a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device, which exchanges voice and / or data with the RAN. The wireless terminal may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, access terminal, user terminal, user agent, user device, or user equipment, without limitation herein.

[0132] The access network equipment 200 can be a base station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a base station in a 5G network, etc., and is not limited here.

[0133] It should be noted that the application scenarios of this application embodiment include both the terminal side and the network side, but the network side environment is not limited. It can be NB-IoT, as well as massive IoT connection network scenarios under 2G / 3G / 4G / 5G / 6G.

[0134] In the field of communications, a Subscriber Identity Module (SIM) is inserted into mobile phones, wearable devices, and various terminal devices to enable communication between the terminal and a wireless network. In this communication scenario, the terminal device initiates a network access request to the network provider, which can choose to accept or reject the terminal device's access based on the SIM's tariff status.

[0135] In related technologies, when a terminal device is denied access by the network due to SIM card status (e.g., SIM card balance is in arrears, service is suspended, or the number is cancelled), the terminal will still repeatedly and frequently initiate access requests to any available mobile network of the same standard, according to the current communication protocol. During this access request process, because the network does not accept the terminal's access requests, significant consumption of communication capacity, especially for channels with limited wireless access, occurs.

[0136] Based on this, this application provides a network access method in which the terminal determines the tariff status of the SIM card carried in the received instruction message, and further determines or stops initiating access requests to the network. This avoids the situation where the terminal frequently initiates network access requests when the SIM card tariff status does not support initiating access requests, thereby avoiding the occupation of a large amount of air interface resources, improving the effectiveness of the terminal initiating access requests, and improving the quality of the network air interface.

[0137] It should be noted that the beneficial effects or technical problems solved by the embodiments of this application are not limited to this one, but may also be other implicit or related problems. For details, please refer to the description of the embodiments below.

[0138] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0139] In one embodiment, as shown in Figure 2, a network access method is provided. Taking the application of this method to a terminal as an example, the method includes the following steps:

[0140] S201, Receive instruction message; the instruction message carries the tariff status of the terminal SIM card.

[0141] The SIM card's tariff status represents its actual tariff at the current moment. In this embodiment, the tariff status is divided into two states: normal tariff and abnormal tariff, based on the actual tariff situation. Abnormal tariff status can include overdue payment, service suspension, and account cancellation. Furthermore, considering that in real-world scenarios, SIM cards can still communicate with the network even when overdue, such as when the overdue period is less than a preset time period or the overdue amount is less than a preset threshold, the overdue status can be further subdivided into several states: network usable despite overdue payment, network unusable but network accessible despite overdue payment, and network inaccessible despite overdue payment. In one embodiment, abnormal tariff includes at least one of the following: network usable despite overdue payment; network unusable but network accessible despite overdue payment; network inaccessible despite overdue payment; service suspension; and account cancellation.

[0142] In this embodiment, when the terminal SIM card is in a state of being in arrears but can still use the network, the terminal can communicate normally with the network; when the terminal SIM card is in a state of being in arrears and cannot use the network but can still access the network, the terminal cannot communicate through the network, but can access the network, for example, it can only receive messages sent by the network but cannot send messages through the network; when the terminal SIM card is in any of the following states: in arrears and cannot access the network, suspended, or canceled, the terminal cannot access the network and cannot receive messages sent by the network side at all.

[0143] In another scenario, besides classifying tariff status according to the actual tariff information of the SIM card, tariff status can also be divided into a first tariff status (allowing access requests) and a second tariff status (stopping access requests) based on whether the terminal initiates an access request. Further, the first tariff status includes normal tariff status, network usability despite arrears, and network access capability despite arrears. The second tariff status includes network access capability despite arrears, suspended service, and account cancellation.

[0144] In this embodiment, the SIM card's tariff status is carried in the indication message. When the terminal receives the indication message, it can naturally also receive the SIM card's tariff status carried in the indication message. This embodiment does not restrict the method by which the terminal receives the indication message, i.e., the sender of the indication message, and includes, but is not limited to, Bluetooth, base station broadcast, SMS, etc.

[0145] In one feasible scenario, the indication message may include, in addition to carrying the SIM card's tariff status, an instruction on whether the terminal should initiate an access request under the current SIM card tariff status, so that the terminal can directly determine whether to initiate an access request to the network based on the instruction in the indication message.

[0146] It should be understood that there is only one type of SIM card tariff status, and correspondingly, the content of the indication message is either an instruction to initiate an access request or an instruction to stop initiating an access request. Based on this, the embodiments of this application do not limit the content format of the indication message.

[0147] For example, the instruction message is text content, which may include an initiation command text to instruct the terminal to initiate an access request to the network; the instruction message may also include a stop command text to instruct the terminal to stop initiating an access request to the network.

[0148] For example, the indication message is in numerical format and may include an initiation command value to instruct the terminal to initiate an access request to the network; the indication message may also include a stop command value to instruct the terminal to stop initiating an access request to the network.

[0149] In real-world scenarios, the format of instruction messages can be plain text, pure numerical content, or a format corresponding to the actual purpose of the instruction message. For example, if the instruction message is used to instruct a terminal to initiate an access request, the instruction message will be in plain text format; if the instruction message is used to instruct a terminal to stop initiating an access request, the instruction message will be in numerical format.

[0150] In one embodiment, the content of the instruction message includes:

[0151] An access indication message corresponding to the SIM card's tariff status; or, an access denial indication reason value corresponding to the SIM card's tariff status.

[0152] The access instruction message is in text format, and the corresponding tariff status includes: normal tariff status, network usable status due to overdue payment, and network usable status due to overdue payment but accessable. The access rejection instruction reason value is in numerical format, and the corresponding tariff status includes: network usable status due to overdue payment, network usable status due to overdue payment, suspended status, and cancelled status.

[0153] Of course, in scenarios where the format of the instruction message varies, the instruction message can be set to a numerical format when it is used to instruct the terminal to initiate an access request, and to a text format when it is used to instruct the terminal to stop initiating an access request.

[0154] In this embodiment, considering terminal behavior, the indication messages corresponding to different terminal behaviors are encapsulated into different formats and sent to the terminal. This allows the terminal to quickly distinguish whether to initiate an access request to the network based on the format of the indication message, improving the effectiveness of the terminal's access request to the network. Furthermore, due to the correspondence between the format of the indication message and the tariff status of the terminal's SIM card, the terminal can further clarify the reason for its own behavior while performing its actions, making the communication between the terminal and the network more transparent and reliable.

[0155] S202, based on the SIM card's tariff status in the instruction message, determine or stop initiating access requests to the network.

[0156] After reading the SIM card's tariff status from the instruction message, the terminal can determine the target terminal action corresponding to the SIM card's tariff status according to the preset logical relationship between tariff status and terminal actions, and then execute that target terminal action. The terminal actions include initiating an access request to the network and ceasing to initiate an access request to the network; each terminal action corresponds one-to-one with a tariff status.

[0157] Optionally, the terminal can match the SIM card's tariff status with the tariff status initiation list corresponding to the access request. If the SIM card's tariff status is in the initiation list, then the terminal will initiate an access request to the network; if the SIM card's tariff status is not in the initiation list, then the terminal will stop initiating an access request to the network.

[0158] Optionally, the terminal can also match the SIM card's tariff status with the tariff status rejection list to stop initiating access requests. If the SIM card's tariff status is in the rejection list, then the terminal stops initiating access requests to the network; if the SIM card's tariff status is not in the rejection list, then the terminal determines to initiate access requests to the network.

[0159] Optionally, if the terminal receives an access indication message corresponding to the tariff status of the SIM card, it determines to initiate an access request to the network; if it receives an access rejection indication reason value corresponding to the tariff status of the SIM card, it stops initiating an access request to the network.

[0160] In this embodiment, the terminal receives an indication message carrying the tariff status of the terminal's SIM card. Based on the tariff status of the SIM card in the indication message, the terminal determines or stops initiating an access request to the network. In this method, the terminal obtains the tariff status of its SIM card based on the indication information, and then assesses whether the terminal can initiate an access request to the network. This is equivalent to comparing the SIM card's tariff status with the conditions for initiating a network access request. If the SIM card's tariff status meets the conditions for initiating the request, the terminal initiates an access request to the network; if the SIM card's tariff status does not meet the conditions, the terminal stops initiating an access request to the network. This network access method allows the terminal to promptly perceive the SIM card's tariff status, avoiding the situation where the terminal frequently initiates network access requests when the SIM card's tariff status does not support initiating an access request. This avoids consuming a large amount of air interface resources, improves the effectiveness of the terminal's access request, and improves the quality of the network air interface.

[0161] The foregoing embodiments do not limit the method by which the terminal receives the indication message; it can be sent by any sender with which the terminal has a communication relationship. In one embodiment, the information type of the indication message includes at least one of the following:

[0162] The first signaling interaction information sent by the core network;

[0163] The second signaling interaction information sent by the base station;

[0164] SMS service messages sent by the operator;

[0165] Bluetooth information sent by the Bluetooth transmitter;

[0166] Wireless network push information sent by the wireless network transmitter.

[0167] In communication scenarios, terminals can communicate with access network elements, base stations, SIM card operators, Bluetooth, and wireless networks in the core network, which means that terminals can receive messages sent by access network elements, base stations, SIM card operators, Bluetooth, and wireless networks in the core network.

[0168] Taking the communication connection between the terminal and the core network as an example, in this scenario, the indication message is encapsulated in the first signaling interaction information. The terminal receives the first signaling interaction message sent from the core network and obtains the indication message.

[0169] The information types of the first signaling interaction information include at least one of the following:

[0170] The response information for the attached or registered message, including a rejection response message or an acceptance response message;

[0171] Response information for mobile attachment or mobile registration messages, including rejection or acceptance response messages;

[0172] Track the response information for region update messages;

[0173] Configuration update information, which includes dedicated configuration update or general configuration update procedures;

[0174] Paging information;

[0175] The response message to the service request information includes whether the service request is rejected or accepted.

[0176] Taking the communication connection between the terminal and the base station as an example, in this scenario, the indication message is encapsulated in the second signaling interaction information. The terminal receives the second signaling interaction message sent by the base station and obtains the indication message.

[0177] The information types of the second signaling interaction information include RRC process information, which includes at least one of the following:

[0178] RRC establishment process;

[0179] RRC reconfiguration process;

[0180] RRC recovery process.

[0181] Taking the communication connection between the terminal and the operator as an example, in this scenario, the instruction message is encapsulated in the SMS service message. The terminal receives the SMS sent by the operator and obtains the instruction message.

[0182] Taking enabling Bluetooth on a terminal as an example, in this scenario, the instruction message is encapsulated in Bluetooth information. The terminal receives Bluetooth information sent from the Bluetooth transmitter and obtains the instruction message.

[0183] Taking enabling network functions on a terminal as an example, in this scenario, the terminal receives wireless network push information sent from the wireless network transmitter and receives an instruction message.

[0184] In this embodiment, the terminal can receive indication messages sent by different senders in various ways, so as to flexibly determine or stop the terminal action of initiating access requests to the network according to the SIM card tariff status carried in the indication message, thereby improving network access efficiency.

[0185] In 5G communication scenarios, the terminal interacts with the AMF (Active Network Provider) elements of the core network. Based on the first signaling interaction information sent by the AMF elements, the terminal determines or stops initiating access requests to the AMF elements. The following example illustrates the terminal behavior in a scenario where the terminal interacts with the AMF elements.

[0186] In one embodiment, the indication message is the first signaling interaction information sent by the AMF network element; the access request includes a registration request and a service request; based on the SIM card's tariff status in the indication message, determining or stopping the initiation of an access request to the network includes any of the following actions:

[0187] If the SIM card's tariff status is normal, a registration request and a service request are sent to the AMF network element.

[0188] If the SIM card's tariff status is in a state of being in arrears but still able to use network services, a registration request and a service request are sent to the AMF network element.

[0189] If the SIM card's payment status is in arrears and network services are unavailable but network access is still possible, then stop sending service requests to AMF network elements;

[0190] If the SIM card's payment status is in arrears and unable to access the network, then stop sending registration requests to the AMF network element;

[0191] If the SIM card's service status is suspended, then stop sending registration requests to the AMF network element;

[0192] If the SIM card's service status is cancelled, then the sending of registration requests to the AMF network element will be stopped.

[0193] In the interaction scenario between the terminal and the AMF network element, the access request initiated by the terminal to the AMF network element includes a registration request and a service request. The registration request is sent when the terminal requests access to the core network, while the service request is sent after the terminal has accessed the core network and requests the core network to provide communication services.

[0194] After obtaining the SIM card's tariff status, the terminal performs corresponding terminal actions based on the correspondence between the tariff status and the registration request and service request.

[0195] When the SIM card's tariff status is normal or in a state where network service is available even though the SIM card is in arrears, the terminal sequentially sends registration requests and service requests to the AMF network element to request access to the core network and establish a communication connection with the core network. When the SIM card's tariff status is in a state where network service is unavailable due to arrears but network access is still possible, the terminal stops sending service requests to the AMF network element, and at this time, the terminal can send registration requests to the AMF network element. When the SIM card's tariff status is in a state where network access is unavailable due to arrears, or in a state of suspension, or in a state of account cancellation, the terminal stops sending registration requests to the AMF network element, and therefore will not initiate service requests.

[0196] In this embodiment, based on the SIM card's tariff status, the situation where the terminal stops initiating access requests is further subdivided into two types: stopping initiating registration requests and stopping initiating service requests but still being able to initiate registration requests. This allows for more precise adjustment of the frequency of the terminal initiating access requests, making full use of the network's air interface resources.

[0197] In addition to interacting with AMF network elements, the terminal can also interact with the base station on the network side. Based on the second signaling interaction information sent by the base station, the terminal can determine or stop initiating access requests to the base station. The following example illustrates the terminal behavior in a scenario where the terminal interacts with the base station.

[0198] In one embodiment, the indication message is second signaling interaction information sent by the base station; the access request includes RRC procedure information; the RRC procedure information is any one of RRC connection establishment request, RRC reconfiguration request, and RRC recovery request; based on the SIM card's tariff status in the indication message, the system determines or stops initiating an access request to the network, including any of the following actions:

[0199] If the SIM card's tariff status is normal, then an access request is sent to the base station;

[0200] If the SIM card's data plan is in a state of being in arrears but still able to use network services, then an access request is sent to the base station;

[0201] If the SIM card's data plan is in a state of being unpaid and unable to use network services but still able to access the network, then stop sending access requests to the base station;

[0202] If the SIM card's data plan is in a state of non-payment and unable to access the network, then stop sending access requests to the base station;

[0203] If the SIM card's service status is suspended, then stop sending access requests to the base station;

[0204] If the SIM card's service status is cancelled, then the system will stop sending access requests to the base station.

[0205] In the interaction scenario between the terminal and the base station, the access requests initiated by the terminal to the base station include RRC connection establishment requests, RRC reconfiguration requests, and RRC recovery requests. Among them, the RRC connection establishment request is sent by the terminal when it first interacts with the base station using RRC; the RRC reconfiguration request is sent by the terminal when there are RRC changes; and the RRC recovery request is sent by the terminal based on connection requirements after the RRC connection is disconnected.

[0206] After obtaining the SIM card's tariff status, the terminal determines the corresponding terminal behavior under the current RRC process information based on the tariff status.

[0207] When the SIM card's tariff status is in a normal tariff state or a state where network service can be used even if the payment is overdue, the terminal initiates an access request to the base station. For example, when establishing an RRC procedure for the first time, an RRC connection establishment request is initiated; when the RRC procedure changes, an RRC reconfiguration request is initiated; when the RRC is disconnected, an RRC recovery request is initiated; when the SIM card's tariff status is in a state where network service cannot be used but network access is possible, or a state where network access is impossible due to overdue payment, or a state where the service is suspended, or a state where the account is cancelled, the terminal stops sending access requests to the base station.

[0208] In this embodiment, the terminal behavior is determined based on the SIM card's tariff status and the RRC process. The entire determination process is logically clear and applicable to various communication scenarios between terminals and base stations, thereby improving the effectiveness of terminal behavior.

[0209] When a SIM card is inserted into a terminal, the SIM card's tariff status may change dynamically, such as when the SIM card is topped up or when the tariff decreases during use. Therefore, the terminal needs to adjust its behavior periodically or in real-time based on the latest tariff status of the SIM card. The following example illustrates a method for dynamically adjusting the terminal's behavior based on the SIM card's tariff status even when the terminal has stopped initiating access requests to the network.

[0210] In one embodiment, as shown in FIG3, the method further includes:

[0211] S301, receives updates on the SIM card's tariff status.

[0212] The updated tariff status of the SIM card is the latest information received by the terminal after receiving the instruction message in the aforementioned embodiment. The terminal can receive the updated tariff status from the core network, base station, Bluetooth, operator, or wireless network transmitter.

[0213] It should be noted that the difference between the updated tariff status and the tariff status carried in the indication message lies in the different terminal reception times. That is, the terminal receives the updated tariff status later than it receives the indication message, making the updated tariff status information more effective. Therefore, the method of sending the updated tariff status and the information type in this embodiment can be found in the descriptions in the foregoing embodiments, and will not be repeated here.

[0214] S302, if the updated tariff status indicates that the SIM card is available, then an access request is initiated to the network.

[0215] After determining the updated tariff status, it checks whether the current status of the SIM card is in one of the above-mentioned available states. If the current tariff status of the SIM card meets any of the above-mentioned available states, it initiates the corresponding access request to the network.

[0216] Taking the interaction between the terminal and the AMF network element as an example, in this interaction scenario, the available status includes normal tariff status, network service available even if the tariff is overdue, and network service unavailable but network access available even if the tariff is overdue.

[0217] If the updated tariff status indicates that the SIM card is in a normal tariff status or can use network service even if it is in arrears, a registration request and service request will be sent to the network. If the updated tariff status indicates that the SIM card is in arrears and cannot use network service but can still access the network, a registration request will be sent to the network.

[0218] Taking the interaction between the terminal and the base station as an example, in this interaction scenario, the available status includes normal tariff status and the status of being able to use network services even if the SIM card is in arrears. If the tariff status is updated to show that the SIM card is in normal tariff status or can use network services even if the SIM card is in arrears, then an RRC procedure is initiated to the base station.

[0219] In this embodiment, considering the changes in SIM card tariffs, the system receives the updated tariff status of the SIM card and adjusts the terminal's network access behavior in a timely manner. When the updated tariff status of the SIM card is available, the system initiates an access request to the network to restore the connection between the terminal and the network, making full use of the network's air interface resources.

[0220] The following describes one possible method for a terminal to receive updated tariff status. In one embodiment, receiving updated tariff status from a SIM card includes:

[0221] Receive paging messages based on SIM card tariffs sent by AMF network elements; the paging messages carry the updated tariff status of the SIM card.

[0222] The AMF network element carries the SIM card's updated tariff status in the paging message and sends it to the terminal. Upon receiving the paging message, the terminal parses it to obtain the SIM card's updated tariff status.

[0223] In this embodiment, the updated tariff status of the SIM card is carried in the paging message based on the SIM card tariff. In this way, when the terminal receives the paging message based on the SIM card resources from the AMF network element, it can also know the updated tariff status of the SIM card in a timely manner, so as to make full use of the interactive signaling between the AMF network element and the terminal and improve the communication efficiency between the two.

[0224] In one embodiment, the method further includes:

[0225] If the terminal is detected to be powered on / off or restarted, or if the SIM card is reinserted, the SIM card's tariff status is saved.

[0226] The terminal continuously monitors its own power status and SIM card status to detect in real time whether the terminal is powered on or off, and whether the SIM card has been inserted or removed. Furthermore, when the terminal is detected to be powered off, or the SIM card is detected to be reinserted, the latest SIM card tariff status is saved so that when the terminal is powered on again or the SIM card is reinserted, the terminal can take corresponding actions based on the saved SIM card tariff status.

[0227] In this embodiment, when the terminal is detected to be powered on or off, restarted, or the SIM card is reinserted, the SIM card's tariff status is saved. This avoids the need for the terminal to re-receive the SIM card's tariff status every time it is powered on or the SIM card is inserted. This allows the terminal to quickly obtain the tariff status after startup or when the SIM card is inserted, and to quickly determine the terminal's behavior, thus avoiding the waste of air interface resources.

[0228] The above describes embodiments with the terminal as the execution subject. Based on this, this application also provides embodiments with AMF network elements, base stations, and data storage network elements on the network side as the execution subjects, corresponding to the above processes. Since all the implementation principles, detailed processes, and achievable technical effects of the following embodiments with the network side as the execution subject are the same as those of the embodiments with the terminal as the execution subject, for the sake of brevity and clarity, the following embodiments will not be described in detail again. The implementation process and effects of each embodiment can be found in the descriptions of the foregoing embodiments.

[0229] In one embodiment, as shown in Figure 4, a network access method is provided, applied to a network, the method comprising:

[0230] S401, send an instruction message to the terminal; the instruction message carries the tariff status of the terminal's SIM card; the instruction message is used to instruct the terminal to determine or stop initiating an access request to the network based on the tariff status of the SIM card.

[0231] It should be noted that the network in this application embodiment refers to the network element in the network environment where the terminal is located that can communicate with the terminal, such as the SMF network element in the 4G network, the AMF network element in the 5G network, and the base station.

[0232] The network element on the network side encapsulates the SIM card's tariff status in an instruction message and sends it to the terminal, so that the terminal can determine its next action based on the instruction message, namely, to initiate an access request to the network or to stop initiating an access request to the network.

[0233] The SIM card's pricing status, based on its actual charges, includes normal or abnormal pricing. Abnormal pricing status can include overdue payment, service suspension, and account cancellation. Furthermore, considering that in real-world scenarios, SIM cards can still communicate with the network even when overdue, such as when the overdue period is less than a preset timeframe or the overdue amount is less than a preset threshold, the overdue status can be further subdivided into several states: network usability despite overdue payment, network access possible despite overdue payment, and network inaccessibility despite overdue payment. In one embodiment, abnormal pricing includes at least one of the following: network usability despite overdue payment; network access possible despite overdue payment; network inaccessibility despite overdue payment; service suspension; and account cancellation.

[0234] Optionally, in addition to carrying the SIM card's tariff status, the network side can also generate corresponding terminal behavior instructions based on the SIM card's tariff status in the indication message, so that the terminal can directly determine whether to initiate an access request to the network based on the terminal behavior instructions in the indication message.

[0235] In one embodiment, the content of the indication message includes: an access indication message corresponding to the tariff status of the SIM card; or, a denial indication reason value corresponding to the tariff status of the SIM card.

[0236] The access instruction message is in text format, and the corresponding tariff status includes: normal tariff status, network usable status due to overdue payment, and network usable status due to overdue payment but accessable. The access rejection instruction reason value is in numerical format, and the corresponding tariff status includes: network usable status due to overdue payment, network usable status due to overdue payment, suspended status, and cancelled status.

[0237] The indication message content provided in this embodiment takes into account terminal behavior. Different indication messages corresponding to different terminal behaviors are encapsulated into different formats and sent to the terminal. This allows the terminal to quickly distinguish whether to initiate an access request to the network based on the format of the indication message, improving the effectiveness of the terminal's access request. Furthermore, due to the correspondence between the format of the indication message and the terminal's SIM card tariff status, the terminal can further clarify the reason for its own behavior while performing it, making the communication between the terminal and the network more transparent and reliable.

[0238] In this embodiment, an indication message is sent to the terminal. The indication message carries the SIM card's tariff status. The indication message instructs the terminal to determine or stop initiating network access requests based on the SIM card's tariff status. In this method, the network sends the terminal's SIM card's tariff status in the indication message to the terminal, enabling the terminal to promptly perceive the SIM card's tariff status. This avoids the terminal frequently initiating network access requests when the SIM card's tariff status does not support initiating access requests, thereby avoiding the occupation of large amounts of air interface resources, improving the effectiveness of the terminal's access requests, and enhancing network air interface quality.

[0239] The following section uses a 5G communication scenario where the terminal interacts with the AMF network element on the network side as an example to explain how the instruction message is sent.

[0240] In one embodiment, the network is an AMF network element that sends an indication message to the terminal, including:

[0241] Send the first signaling interaction information to the terminal; the first signaling interaction information carries an instruction message.

[0242] The information types of the first signaling interaction information include at least one of the following:

[0243] The response information for the attached or registered message, including a rejection response message or an acceptance response message;

[0244] Response information for mobile attachment or mobile registration messages, including rejection or acceptance response messages;

[0245] Track the response information for region update messages;

[0246] Configuration update information, which includes dedicated configuration update or general configuration update procedures;

[0247] Paging information;

[0248] The response message to the service request information includes whether the service request is rejected or accepted.

[0249] The AMF network element encapsulates the indication message in the first signaling interaction information and sends it to the terminal. The terminal receives the first signaling interaction information sent from the core network and obtains the indication message.

[0250] In this embodiment, the AMF network element encapsulates the indication message in different types of signaling interaction information and sends it to the terminal. Correspondingly, the terminal can receive the indication message sent by the AMF network element in multiple ways to make full use of the interaction signaling between the AMF network element and the terminal, enrich the diversity of indication messages received by the terminal, and improve network access efficiency.

[0251] The following section uses the interaction between the base station and the terminal on the network side as an example to explain how the instruction message is sent.

[0252] In one embodiment, the network is a base station, which sends an indication message to the terminal, including:

[0253] Send a second signaling interaction message to the terminal; the second signaling interaction message carries an instruction message.

[0254] The information types of the second signaling interaction information include at least one of the following:

[0255] RRC establishment process;

[0256] RRC reconfiguration process;

[0257] RRC recovery process.

[0258] The base station encapsulates the indication message in the second signaling interaction information, such as the RRC establishment process, RRC reconfiguration process, and RRC recovery process, and sends it to the terminal. The terminal receives the first signaling interaction message sent by the base station and obtains the indication message.

[0259] In this embodiment, the base station encapsulates the indication message in different types of signaling interaction information and sends it to the terminal. Correspondingly, the terminal can receive the indication message sent by the base station in multiple ways to make full use of the interaction signaling between the base station and the terminal, enrich the diversity of the indication message received by the terminal, and improve network access efficiency.

[0260] Next, we will explain one possible way for the network side to obtain the SIM card's tariff status.

[0261] In one embodiment, as shown in Figure 5, the network is an AMF network element, and before sending the indication message to the terminal, the method further includes:

[0262] S501 retrieves the tariff status of the SIM card in the data storage network element.

[0263] Among them, the data storage network element refers to the network element used to store and manage user data, including the tariff status of the SIM card.

[0264] In this embodiment of the application, the data storage network element can be any one of the Unified Data Management (UDM) network element, the Home Subscriber Server (HSS) network element, and the Unified Data Repository (UDR) network element.

[0265] Based on the interaction method between AMF network elements and data storage network elements, AMF network elements can obtain tariff status in two ways: active reading and passive reception.

[0266] For example, the tariff status of the SIM card is read from the data storage network element.

[0267] The AMF network element sends a tariff status retrieval request to the data storage network element, and the data storage network element encapsulates the tariff status of the SIM card in the tariff status retrieval response and sends it to the AMF network element.

[0268] For example, the received data saves the SIM card's tariff status sent by the network element.

[0269] The AMF network element subscribes to the data storage network element's tariff status acquisition request to instruct the data storage network element to periodically send the SIM card's tariff status to the AMF network element, or the data storage network element sends the SIM card's tariff status to the AMF network element in real time after receiving it.

[0270] In this embodiment of the application, the AMF network element can use various methods to obtain the SIM card's tariff status from the data storage network element to ensure the accuracy and validity of the SIM card's tariff status.

[0271] S502 encapsulates the tariff status of the SIM card to obtain the first signaling interaction information.

[0272] After obtaining the SIM card's tariff status, it is encapsulated in any one of the following message types: response information for attach or register messages, response information for mobile attach or mobile register messages, response information for tracking area update messages, configuration update information, paging information, and service request information, to obtain the first signaling interaction information.

[0273] In this embodiment, the AMF network element encapsulates the tariff status of the SIM card in the data storage network element in the first signaling interaction information, thereby improving the information security of the SIM card's tariff status and providing a reliable and accurate basis for the terminal to determine or stop initiating an access request.

[0274] The above describes embodiments with AMF network elements and base stations on the network side as the execution subject. Based on this, this application also provides embodiments with data storage network elements on the network side as the execution subject, corresponding to the above processes. Since all the implementation principles, detailed processes, and achievable technical effects of the embodiments with data storage network elements as the execution subject are the same as those of the embodiments with AMF network elements and base stations on the network side, for the sake of brevity and clarity, the following embodiments will not be described in detail. The implementation process and effects of each embodiment can be found in the descriptions of the foregoing embodiments.

[0275] In one embodiment, as shown in Figure 6, a network access method is provided. Taking the application of this method to a data storage network element as an example, the method includes the following steps:

[0276] S601, send the SIM card's tariff status in the terminal to the AMF network element, instructing the AMF network element to send the SIM card's tariff status to the terminal; the SIM card's tariff status is used to instruct the terminal to confirm or stop initiating an access request to the network.

[0277] Among them, the data storage network element includes any one of the UDM network element, HSS network element, and UDR network element.

[0278] Optionally, the data storage network element responds to the tariff status acquisition request sent by the AMF network element by encapsulating the tariff status of the SIM card in the tariff status acquisition response and sending the tariff status acquisition response to the AMF network element.

[0279] In another communication scenario, the data storage network element can send the latest SIM card tariff status to the AMF network element at preset time intervals, or it can monitor the SIM card tariff status and send the latest SIM card tariff status to the AMF network element if the SIM card tariff status is updated.

[0280] Next, in conjunction with the application background of the embodiments of this application, the flow method and function of the SIM card's tariff status will be explained: The data storage network element stores the SIM card's tariff status, and then sends the stored tariff status to the AMF network element. The AMF network element encapsulates the SIM card's tariff status in an indication message and sends the indication message to the terminal. Then, the terminal obtains the SIM card's tariff status according to the received indication message, and determines or stops initiating an access request according to the logical relationship between the tariff status and the terminal's behavior.

[0281] In this embodiment, the data storage network element sends the SIM card's tariff status in the terminal to the AMF network element, instructing the AMF network element to send the SIM card's tariff status to the terminal. The SIM card's tariff status is used to instruct the terminal to determine or stop initiating an access request to the network. In this method, the data storage network element sends the SIM card's tariff status to the terminal through the AMF network element, so that the terminal can promptly perceive the SIM card's tariff status. This avoids the terminal frequently initiating network access requests when the SIM card's tariff status does not support initiating an access request, thereby avoiding the occupation of a large amount of air interface resources, improving the effectiveness of the terminal's access request initiation, and improving the quality of the network air interface.

[0282] In one embodiment, taking the interaction scenario between the terminal and the AMF network element as an example, Figure 7 provides a signaling interaction flowchart for a network access method. In Figure 7, the data storage network element includes any one of the UDM network element, HSS network element, and UDR network element. As shown in Figure 7, the method includes the following steps:

[0283] S701, the data storage network element is added and the SIM card's tariff status is saved.

[0284] The SIM card's tariff status is sent to the data storage network element by the Internet Technology (IT) system.

[0285] S702 adds a messaging service and interface to obtain the tariff status of the terminal SIM card.

[0286] The network elements in the core network have added message services and interfaces for obtaining the SIM card tariff status of the terminal, including: reading, subscribing to, and notifying messages, so as to know the SIM card tariff status of the terminal.

[0287] The network elements in the core network include, but are not limited to, the Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), and Policy Control Function (PCF) shown in Figure 7.

[0288] S703, the network sends an instruction message to the terminal.

[0289] The network sends the aforementioned SIM tariff status to the terminal in the information exchanged between the terminal and the network. The exchanged information may include one or more of the following: attach / register messages, TAU, periodic / mobile registration, configuration updates, paging messages, etc.

[0290] S704 adds a rejection reason value based on the SIM card's tariff status.

[0291] The network elements in the core network have added rejection reason values ​​based on the above-mentioned SIM card tariff status to the 5GMM cause code and 5GSM cause code, including: service rejection due to non-payment, service rejection due to suspension, access denied due to non-payment, and access denied due to suspension.

[0292] S705 adds paging information based on SIM card tariff.

[0293] The network elements in the core network add MT messages based on SIM card tariffs, or add paging messages based on SIM card tariffs.

[0294] S706, receive updated tariff status.

[0295] The terminal supports receiving SIM card tariff status from network signaling, and supports receiving SIM card tariff status via OTA, SMS, Bluetooth, Wi-Fi, etc., and can save and update SIM card tariff status.

[0296] The S707 receives, saves, and updates SIM card tariff status information sent from the network, and retains this SIM card tariff status information even after the device is restarted.

[0297] The terminal receives, saves, and updates the SIM card tariff status information sent by the network, and retains the SIM card tariff status information even after restarting the device, thus avoiding frequent network connections after restarting the device and wasting air interface resources.

[0298] S708 optimizes terminal behavior based on SIM card tariff status.

[0299] The optimization strategy is as follows:

[0300] If the SIM card's tariff status is normal, a registration request and service request are sent to the AMF network element. Alternatively, a recharge page can be pushed to prompt the user to recharge.

[0301] If the SIM card's tariff status is in a state of being in arrears but still able to use network services, a registration request and a service request are sent to the AMF network element.

[0302] If the SIM card's payment status is in arrears and network services are unavailable but network access is still possible, then stop sending service requests to AMF network elements;

[0303] If the SIM card's payment status is in arrears and unable to access the network, then stop sending registration requests to the AMF network element;

[0304] If the SIM card's service status is suspended, then stop sending registration requests to the AMF network element;

[0305] If the SIM card's service status is cancelled, then the sending of registration requests to the AMF network element will be stopped.

[0306] The network access method provided in this application allows IoT terminals to access the network or initiate service requests on demand based on their SIM card tariff status. This avoids the terminal repeatedly initiating connection requests at high frequency according to the inherent protocol even after being rejected by the core network. It also avoids consuming communication capacity, especially the limited channels of the wireless interface, during the connection request process, thus improving network air interface quality. Furthermore, this application requires no hardware modification, only a software upgrade, avoiding hardware modification costs.

[0307] In one embodiment, Figure 8 provides a signaling interaction flowchart of a network access method. As shown in Figure 8, the method includes the following steps:

[0308] S801, the network adds and saves the tariff status of the SIM card.

[0309] S802 adds a new messaging service and interface to the network to obtain the tariff status of the terminal SIM card.

[0310] S803, the network sends an instruction message to the terminal.

[0311] S804, if the network refuses terminal access, the network sends a rejection reason value based on the SIM card's tariff status.

[0312] S805: The terminal receives, saves, and updates SIM card tariff status information sent by the network, and retains the SIM card tariff status information even after restarting the device.

[0313] S806: When the SIM card is in arrears and the network is unavailable, the terminal stops initiating access requests to the network and no longer performs operations such as cell search, cell selection, and network search.

[0314] S807, the terminal receives the updated tariff status of the SIM card and initiates an access request if the SIM card is in a network available state.

[0315] In one embodiment, Figure 9 provides a signaling interaction flowchart of a network access method. As shown in Figure 9, the method includes the following steps:

[0316] S901: The terminal receives, saves, and updates the SIM card's tariff status.

[0317] The SIM card's tariff status can be encapsulated in the first signaling interaction information sent by the core network, or the second signaling interaction information sent by the base station, or the short message service message sent by the operator, or the Bluetooth information sent by the Bluetooth transmitter, or the wireless network push information sent by the wireless network transmitter.

[0318] S902: If the SIM card is in an abnormal tariff state, the terminal initiates a service request to access the network.

[0319] S903, if the network refuses terminal access, the network sends a rejection reason value based on the SIM card's tariff status.

[0320] S904: The terminal saves the SIM card tariff status sent by the network, and retains the SIM card tariff status information even after restarting the device.

[0321] S905: If the SIM card is in a state of non-payment and unable to access the network, or in a state of suspension, or in a state of cancellation, no further service requests will be initiated.

[0322] In one embodiment, Figure 10 provides a signaling interaction flowchart of a network access method. As shown in Figure 10, the method includes the following steps:

[0323] S1001, the terminal receives, saves and updates the SIM card's tariff status.

[0324] The SIM card's tariff status can be encapsulated in the first signaling interaction information sent by the core network, or the second signaling interaction information sent by the base station, or the short message service message sent by the operator, or the Bluetooth information sent by the Bluetooth transmitter, or the wireless network push information sent by the wireless network transmitter.

[0325] S1002, if the SIM card is in a state of non-payment and cannot use network services but can access the network, the terminal stops sending service requests; if the SIM card is in a state of non-payment and cannot access the network, the terminal stops sending registration requests to the network.

[0326] S1003, the terminal receives a paging message based on SIM card tariff.

[0327] S1004, when the SIM card tariff status changes, the network sends updated tariff information to the terminal.

[0328] S1005, the terminal saves the SIM card tariff status sent by the network, and retains the SIM card tariff status information even after restarting the device.

[0329] S1006 If the SIM card is in a network available state, the terminal initiates an access request.

[0330] Figures 8-10 above are modified embodiments of the embodiment shown in Figure 7. For specific implementation methods and effects, please refer to the aforementioned embodiments, which will not be repeated here.

[0331] It should be understood that although the steps in the flowchart of Figure 2-10 are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in Figure 2-10 may include multiple steps or multiple stages, which are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps.

[0332] In one embodiment, as shown in FIG11, a network access device is provided, including: an information receiving module 1101 and an indication response module 1102, wherein:

[0333] The information receiving module 1101 is used to receive an indication message; the indication message carries the tariff status of the terminal SIM card;

[0334] The instruction response module 1102 is used to determine or stop initiating an access request to the network based on the SIM card's tariff status in the instruction message.

[0335] In one embodiment, the content of the instruction message includes:

[0336] An access indication message corresponding to the SIM card's tariff status; or,

[0337] The reason value for access denial corresponding to the SIM card's tariff status.

[0338] In one embodiment, the information type indicating the message includes at least one of the following:

[0339] The first signaling interaction information sent by the core network;

[0340] The second signaling interaction information sent by the base station;

[0341] SMS service messages sent by the operator;

[0342] Bluetooth information sent by the Bluetooth transmitter;

[0343] Wireless network push information sent by the wireless network transmitter.

[0344] In one embodiment, the information type of the first signaling interaction information includes at least one of the following:

[0345] The response information for the attached or registered message, including a rejection response message or an acceptance response message;

[0346] Response information for mobile attachment or mobile registration messages, including rejection or acceptance response messages;

[0347] Track the response information for region update messages;

[0348] Configuration update information, which includes dedicated configuration update or general configuration update procedures;

[0349] Paging information;

[0350] The response message to the service request information includes whether the service request is rejected or accepted.

[0351] In one embodiment, the information type of the second signaling interaction information includes RRC process information, which includes at least one of the following:

[0352] RRC establishment process;

[0353] RRC reconfiguration process;

[0354] RRC recovery process.

[0355] In one embodiment, the SIM card's tariff status includes normal tariff or abnormal tariff.

[0356] In one embodiment, abnormal billing includes at least one of the following:

[0357] You can still use the internet service even if you are overdue on your bill.

[0358] You cannot use network services if you are in arrears, but you can still access the network.

[0359] Unable to access the network due to unpaid bills;

[0360] Shutdown;

[0361] Cancel the account.

[0362] In one embodiment, the indication message is the first signaling interaction information sent by the AMF network element; the access request includes a registration request and a service request; the indication response module is used for:

[0363] If the SIM card's tariff status is normal, a registration request and a service request are sent to the AMF network element.

[0364] If the SIM card's tariff status is in a state of being in arrears but still able to use network services, a registration request and a service request are sent to the AMF network element.

[0365] If the SIM card's payment status is in arrears and network services are unavailable but network access is still possible, then stop sending service requests to AMF network elements;

[0366] If the SIM card's payment status is in arrears and unable to access the network, then stop sending registration requests to the AMF network element;

[0367] If the SIM card's service status is suspended, then stop sending registration requests to the AMF network element;

[0368] If the SIM card's service status is cancelled, then the sending of registration requests to the AMF network element will be stopped.

[0369] In one embodiment, the indication message is second signaling interaction information sent by the base station; the access request includes RRC procedure information; the RRC procedure information is any one of an RRC connection establishment request, an RRC reconfiguration request, and an RRC recovery request; the indication response module is used for:

[0370] If the SIM card's tariff status is normal, then an access request is sent to the base station;

[0371] If the SIM card's data plan is in a state of being in arrears but still able to use network services, then an access request is sent to the base station;

[0372] If the SIM card's data plan is in a state of being unpaid and unable to use network services but still able to access the network, then stop sending access requests to the base station;

[0373] If the SIM card's data plan is in a state of non-payment and unable to access the network, then stop sending access requests to the base station;

[0374] If the SIM card's service status is suspended, then stop sending access requests to the base station;

[0375] If the SIM card's service status is cancelled, then the system will stop sending access requests to the base station.

[0376] In one embodiment, the network access device further includes: a state update module and a request initiation module, wherein:

[0377] The status update module is used to receive updated tariff status updates from the SIM card.

[0378] The request initiation module is used to initiate an access request to the network if the updated tariff status indicates that the SIM card is in an available state.

[0379] In one embodiment, the status update module is used to receive a paging message based on SIM card tariff sent by the AMF network element; the paging message carries the updated tariff status of the SIM card.

[0380] In one embodiment, the network access device further includes a status saving module, used to save the SIM card's tariff status when the terminal is detected to be powered on or off or restarted, or the SIM card is reinserted or removed.

[0381] In one embodiment, as shown in FIG12, a network access device is provided, including: an information sending module 1201, used to send an indication message to a terminal; the indication message carries the tariff status of the terminal's SIM card; the indication message is used to instruct the terminal to determine or stop initiating an access request to the network based on the tariff status of the SIM card.

[0382] In one embodiment, the content of the instruction message includes:

[0383] An access indication message corresponding to the SIM card's tariff status; or,

[0384] The reason value for access denial corresponding to the SIM card's tariff status.

[0385] In one embodiment, the SIM card's tariff status includes normal tariff or abnormal tariff.

[0386] In one embodiment, abnormal billing includes at least one of the following:

[0387] You can still use the internet service even if you are overdue on your bill.

[0388] You cannot use network services if you are in arrears, but you can still access the network.

[0389] Unable to access the network due to unpaid bills;

[0390] Shutdown;

[0391] Cancel the account.

[0392] In one embodiment, the network is an AMF network element, and the information sending module 1201 is used to send first signaling interaction information to the terminal; the first signaling interaction information carries an indication message.

[0393] In one embodiment, the information type of the first signaling interaction information includes at least one of the following:

[0394] The response information for the attached or registered message, including a rejection response message or an acceptance response message;

[0395] Response information for mobile attachment or mobile registration messages, including rejection or acceptance response messages;

[0396] Track the response information for region update messages;

[0397] Configuration update information, which includes dedicated configuration update or general configuration update procedures;

[0398] Paging information;

[0399] The response message to the service request information includes whether the service request is rejected or accepted.

[0400] In one embodiment, the network is a base station, and the information sending module 1201 is used to send second signaling interaction information to the terminal; the second signaling interaction information carries an indication message.

[0401] In one embodiment, the information type of the second signaling interaction information includes at least one of the following:

[0402] RRC establishment process;

[0403] RRC reconfiguration process;

[0404] RRC recovery process.

[0405] In one embodiment, the network is an AMF network element. Before sending the indication message to the terminal, the network access device further includes: a status acquisition module and a status encapsulation module, wherein:

[0406] The status acquisition module is used to acquire the tariff status of the SIM card in the data storage network element;

[0407] The state encapsulation module is used to encapsulate the tariff status of the SIM card to obtain the first signaling interaction information.

[0408] In one embodiment, the status acquisition module is used to read the SIM card's tariff status from the data storage network element; or, to receive the SIM card's tariff status sent by the data storage network element.

[0409] In one embodiment, the data storage network element includes any one of the UDM network element, HSS network element, and UDR network element.

[0410] In one embodiment, as shown in FIG13, a network access device is provided, including: an information delivery module 1301, used to send the tariff status of the SIM card in the terminal to the AMF network element, so as to instruct the AMF network element to send the tariff status of the SIM card to the terminal; the tariff status of the SIM card is used to instruct the terminal to determine or stop initiating an access request to the network.

[0411] In one embodiment, the data storage network element includes any one of the UDM network element, HSS network element, and UDR network element.

[0412] For specific limitations regarding network access devices, please refer to the limitations on network access methods above, which will not be repeated here. Each module in the aforementioned network access device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0413] In one embodiment, a communication device is provided, as shown in FIG14. FIG14 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present invention. The terminal device shown in FIG14 includes: at least one processor 1401, a memory 1402, at least one network interface 1404, and a user interface 1403. The various components in the terminal device 1400 are coupled together through a bus system 1405. It is understood that the bus system 1405 is used to realize the connection and communication between these components. In addition to a data bus, the bus system 1405 also includes a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus system 1405 in FIG14. In addition, in this embodiment, a transceiver 1406 is also included. The transceiver 1406 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

[0414] The user interface 1403 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0415] It is understood that the memory 1402 in the embodiments of the present invention can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1402 of the systems and methods described in this embodiment is intended to include, but is not limited to, these and any other suitable types of memory.

[0416] In some implementations, memory 1402 stores elements such as executable modules or data structures, or subsets thereof, or extended sets thereof: operating system 1421 and application programs 1422.

[0417] The operating system 1421 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 1422 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this embodiment can be included in the application program 1422.

[0418] By calling the program or instructions stored in memory 1402, specifically the program or instructions stored in application program 1422, the receiver is used to receive the indication message; the indication message carries the tariff status of the terminal SIM card; the processor 1401 is used to determine or stop initiating an access request to the network based on the tariff status of the SIM card in the indication message.

[0419] It is understood that the embodiments described in this invention can be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this application, or combinations thereof.

[0420] For software implementation, the techniques described in the embodiments of the present invention can be implemented by modules (e.g., procedures, functions, etc.) that perform the functions described in the embodiments of the present invention. The software code can be stored in memory and executed by processor 1401. The memory can be implemented in processor 1401 or external to processor 1401.

[0421] In this embodiment of the application, the content of the instruction message includes:

[0422] An access indication message corresponding to the SIM card's tariff status; or,

[0423] The reason value for access denial corresponding to the SIM card's tariff status.

[0424] In this embodiment of the application, the information type of the indication message includes at least one of the following:

[0425] The first signaling interaction information sent by the core network;

[0426] The second signaling interaction information sent by the base station;

[0427] SMS service messages sent by the operator;

[0428] Bluetooth information sent by the Bluetooth transmitter;

[0429] Wireless network push information sent by the wireless network transmitter.

[0430] In this embodiment of the application, the information type of the first signaling interaction information includes at least one of the following:

[0431] The response information for the attached or registered message, including a rejection response message or an acceptance response message;

[0432] Response information for mobile attachment or mobile registration messages, including rejection or acceptance response messages;

[0433] Track the response information for region update messages;

[0434] Configuration update information, which includes dedicated configuration update or general configuration update procedures;

[0435] Paging information;

[0436] The response message to the service request information includes whether the service request is rejected or accepted.

[0437] In this embodiment of the application, the information type of the second signaling interaction information includes RRC process information, and the RRC process information includes at least one of the following:

[0438] RRC establishment process;

[0439] RRC reconfiguration process;

[0440] RRC recovery process.

[0441] In this embodiment of the application, the SIM card's tariff status includes normal tariff or abnormal tariff.

[0442] In this embodiment of the application, abnormal charges include at least one of the following:

[0443] You can still use the internet service even if you are overdue on your bill.

[0444] You cannot use network services if you are in arrears, but you can still access the network.

[0445] Unable to access the network due to unpaid bills;

[0446] Shutdown;

[0447] Cancel the account.

[0448] In this embodiment of the application, the transmitter is also configured to perform any of the following actions:

[0449] If the SIM card's tariff status is normal, a registration request and a service request are sent to the AMF network element.

[0450] If the SIM card's tariff status is in a state of being in arrears but still able to use network services, a registration request and a service request are sent to the AMF network element.

[0451] If the SIM card's payment status is in arrears and network services are unavailable but network access is still possible, then stop sending service requests to AMF network elements;

[0452] If the SIM card's payment status is in arrears and unable to access the network, then stop sending registration requests to the AMF network element;

[0453] If the SIM card's service status is suspended, then stop sending registration requests to the AMF network element;

[0454] If the SIM card's service status is cancelled, then the sending of registration requests to the AMF network element will be stopped.

[0455] In this embodiment of the application, the transmitter is also configured to perform any of the following actions:

[0456] If the SIM card's tariff status is normal, then an access request is sent to the base station;

[0457] If the SIM card's data plan is in a state of being in arrears but still able to use network services, then an access request is sent to the base station;

[0458] If the SIM card's data plan is in a state of being unpaid and unable to use network services but still able to access the network, then stop sending access requests to the base station;

[0459] If the SIM card's data plan is in a state of non-payment and unable to access the network, then stop sending access requests to the base station;

[0460] If the SIM card's service status is suspended, then stop sending access requests to the base station;

[0461] If the SIM card's service status is cancelled, then the system will stop sending access requests to the base station.

[0462] In this embodiment of the application, the receiver is also used to receive the updated tariff status of the SIM card;

[0463] The transmitter is also used to initiate an access request to the network if the updated tariff status indicates that the SIM card is available.

[0464] In this embodiment of the application, the receiver is further configured to receive a paging message based on SIM card tariff sent by the AMF network element; the paging message carries the updated tariff status of the SIM card.

[0465] In this embodiment of the application, the processor 1401 is also used to save the tariff status of the SIM card when the terminal is detected to be powered on or off or restarted, or the SIM card is reinserted or removed.

[0466] Figure 15 is a schematic diagram of the access network device provided in an embodiment of this application. The access network device can be an AMF network element or a base station, including a receiver 1501, a memory 1502, a processor 1503, at least one communication bus 1504, and a transmitter 1505. The communication bus 1504 is used to realize communication connections between components. The memory 1502 may include a high-speed RAM memory, and may also include non-volatile memory (NVM), such as at least one disk storage. The memory 1502 can store various programs for performing various processing functions and implementing the method steps of this embodiment. In this embodiment, the transmitter 1505 can be a radio frequency processing module or a baseband processing module in the access network device, and the receiver 1501 can also be a radio frequency processing module or a baseband processing module in the access network device. The transmitter 1505 and receiver 1501 can be integrated together to form a transceiver. Both the transmitter 1505 and receiver 1501 can be coupled to the processor 1503, and can perform receiving or transmitting actions under the instruction or control of the processor 1503.

[0467] In this embodiment of the application, the transmitter 1505 is used to send an indication message to the terminal; the indication message carries the tariff status of the terminal's SIM card; the indication message is used to instruct the terminal to determine or stop initiating an access request to the network based on the tariff status of the SIM card.

[0468] In this embodiment of the application, the content of the instruction message includes:

[0469] An access indication message corresponding to the SIM card's tariff status; or,

[0470] The reason value for access denial corresponding to the SIM card's tariff status.

[0471] In this embodiment of the application, the SIM card's tariff status includes normal tariff or abnormal tariff.

[0472] In this embodiment of the application, abnormal charges include at least one of the following:

[0473] You can still use the internet service even if you are overdue on your bill.

[0474] You cannot use network services if you are in arrears, but you can still access the network.

[0475] Unable to access the network due to unpaid bills;

[0476] Shutdown;

[0477] Cancel the account.

[0478] In this embodiment of the application, the network is an AMF network element, and the transmitter 1505 is also used to send first signaling interaction information to the terminal; the first signaling interaction information carries an indication message.

[0479] In this embodiment of the application, the information type of the first signaling interaction information includes at least one of the following:

[0480] The response information for the attached or registered message, including a rejection response message or an acceptance response message;

[0481] Response information for mobile attachment or mobile registration messages, including rejection or acceptance response messages;

[0482] Track the response information for region update messages;

[0483] Configuration update information, which includes dedicated configuration update or general configuration update procedures;

[0484] Paging information;

[0485] The response message to the service request information includes whether the service request is rejected or accepted.

[0486] In this embodiment of the application, the network is a base station, and the transmitter 1505 is also used to send second signaling interaction information to the terminal; the second signaling interaction information carries an indication message.

[0487] In this embodiment of the application, the information type of the second signaling interaction information includes at least one of the following:

[0488] RRC establishment process;

[0489] RRC reconfiguration process;

[0490] RRC recovery process.

[0491] In this embodiment of the application, the network is an AMF network element, and the processor 1503 is used to obtain the tariff status of the SIM card in the data storage network element; the tariff status of the SIM card is encapsulated to obtain the first signaling interaction information.

[0492] In this embodiment of the application, the processor 1503 is configured to perform any of the following:

[0493] Read the SIM card's tariff status from the data storage network element;

[0494] The received data saves the SIM card's tariff status sent by the network element.

[0495] In this embodiment of the application, the data storage network element includes any one of the UDM network element, HSS network element, and UDR network element.

[0496] Figure 16 is a schematic diagram of the structure of an access network device provided in an embodiment of this application. The access network device can be a data storage network element, including a receiver 1601, a memory 1602, a processor 1603, at least one communication bus 1604, and a transmitter 1605. The communication bus 1604 is used to realize communication connections between components. The memory 1602 may include a high-speed RAM memory, and may also include non-volatile memory (NVM), such as at least one disk storage. The memory 1602 can store various programs for performing various processing functions and implementing the method steps of this embodiment. In this embodiment, the transmitter 1605 can be a radio frequency processing module or a baseband processing module in the access network device, and the receiver 1601 can also be a radio frequency processing module or a baseband processing module in the access network device. The transmitter 1605 and receiver 1601 can be integrated together to form a transceiver. Both the transmitter 1605 and receiver 1601 can be coupled to the processor 1603, and can perform receiving or transmitting actions under the instruction or control of the processor 1603.

[0497] In this embodiment of the application, the transmitter 1605 is used to send the tariff status of the SIM card in the terminal to the AMF network element, so as to instruct the AMF network element to send the tariff status of the SIM card to the terminal; the tariff status of the SIM card is used to instruct the terminal to determine or stop initiating an access request to the network.

[0498] In this embodiment of the application, the data storage network element includes any one of the UDM network element, HSS network element, and UDR network element.

[0499] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method steps of any of the above embodiments.

[0500] This application also provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the method steps in any of the above embodiments.

[0501] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0502] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0503] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A network access method, applied to a terminal, the method comprising: Receive instruction message; The instruction message carries the tariff status of the terminal SIM card; Based on the SIM card's tariff status in the instruction message, determine or stop initiating access requests to the network.

2. The method according to claim 1, wherein, The content of the instruction message includes: An access indication message corresponding to the tariff status of the SIM card; or, The access denial indication reason value corresponding to the tariff status of the SIM card.

3. The method according to claim 1, wherein, The information type of the instruction message includes at least one of the following: The first signaling interaction information sent by the core network; The second signaling interaction information sent by the base station; SMS service messages sent by the operator; Bluetooth information sent by the Bluetooth transmitter; Wireless network push information sent by the wireless network transmitter.

4. The method according to claim 3, wherein, The information type of the first signaling interaction information includes at least one of the following: Response information for attaching or registering messages, the response information including a rejection response message or an acceptance response message; Response information for mobile attachment or mobile registration messages, the response information including a rejection response message or an acceptance response message; Track the response information for region update messages; Configuration update information, which includes dedicated configuration update or general configuration update procedures; Paging information; A response message to a service request, wherein the response information includes rejecting or accepting the service request.

5. The method according to claim 3, wherein, The information type of the second signaling interaction information includes RRC process information, which includes at least one of the following: RRC establishment process; RRC reconfiguration process; RRC recovery process.

6. The method according to claim 1, wherein, The SIM card's tariff status includes normal tariff or abnormal tariff.

7. The method according to claim 6, wherein, The abnormal pricing includes at least one of the following: You can still use the internet service even if you are overdue on your bill. You cannot use network services if you are in arrears, but you can still access the network. Unable to access the network due to unpaid bills; Shutdown; Cancel the account.

8. The method according to any one of claims 1-7, wherein, The indication message is the first signaling interaction information sent by the Access and Mobility Management Function (AMF) network element; the access request includes a registration request and a service request; determining or stopping the initiation of an access request to the network based on the SIM card's tariff status in the indication message includes any of the following actions: If the SIM card's tariff status is normal, then the registration request and the service request are sent to the AMF network element; If the SIM card's tariff status is in a state of being in arrears but still able to use network services, then the registration request and the service request are sent to the AMF network element; If the SIM card is in a state of being out of credit and unable to use network services but can access the network, then stop sending the service request to the AMF network element; If the SIM card is in a state of non-payment and unable to access the network, then stop sending the registration request to the AMF network element; If the SIM card's service status is suspended, then stop sending the registration request to the AMF network element; If the SIM card's tariff status is in a cancelled state, then the registration request will not be sent to the AMF network element.

9. The method according to any one of claims 1-7, wherein, The indication message is the second signaling interaction information sent by the base station; the access request includes RRC process information; the RRC process information is any one of RRC connection establishment request, RRC reconfiguration request, and RRC recovery request; determining or stopping the initiation of an access request to the network based on the SIM card's tariff status in the indication message includes any of the following actions: If the SIM card's tariff status is in a normal tariff status, then the access request is initiated to the base station; If the SIM card's tariff status is in a state of being in arrears but still able to use network services, then the access request is initiated to the base station; If the SIM card's payment status is in arrears and network services are unavailable but network access is still possible, then the access request to the base station will be stopped. If the SIM card is in a state of non-payment and unable to access the network, then the access request to the base station will be stopped. If the SIM card's service status is suspended, then the access request to the base station will not be initiated. If the SIM card's service status is cancelled, then the access request to the base station will be stopped.

10. The method according to any one of claims 1-7, wherein, The method further includes: Receive the updated tariff status of the SIM card; If the updated tariff status indicates that the SIM card is in an available state, then the access request is initiated to the network.

11. The method according to claim 10, wherein, Receiving the updated tariff status of the SIM card includes: Receive a paging message sent by an AMF network element based on the SIM card's tariff; the paging message carries the updated tariff status of the SIM card.

12. The method according to any one of claims 1-7, wherein, The method further includes: If the terminal is detected to be powered on or off or restarted, or if the SIM card is reinserted or removed, the SIM card's tariff status is saved.

13. A network access method, applied to a network, the method comprising: Send an instruction message to the terminal; The instruction message carries the tariff status of the terminal SIM card; The instruction message is used to instruct the terminal to determine or stop initiating access requests to the network based on the tariff status of the SIM card.

14. The method according to claim 13, wherein, The content of the instruction message includes: An access indication message corresponding to the tariff status of the SIM card; or, The access denial indication reason value corresponding to the tariff status of the SIM card.

15. The method according to claim 13, wherein, The SIM card's tariff status includes normal tariff or abnormal tariff.

16. The method according to claim 15, wherein, The abnormal pricing includes at least one of the following: You can still use the internet service even if you are overdue on your bill. You cannot use network services if you are in arrears, but you can still access the network. Unable to access the network due to unpaid bills; Shutdown; Cancel the account.

17. The method according to claim 13, wherein, The network is an AMF network element, and the sending of the indication message to the terminal includes: Send first signaling interaction information to the terminal; the first signaling interaction information carries the indication message.

18. The method according to claim 17, wherein, The information type of the first signaling interaction information includes at least one of the following: Response information for attaching or registering messages, the response information including a rejection response message or an acceptance response message; Response information for mobile attachment or mobile registration messages, the response information including a rejection response message or an acceptance response message; Track the response information for region update messages; Configuration update information, which includes dedicated configuration update or general configuration update procedures; Paging information; A response message to a service request, wherein the response information includes rejecting or accepting the service request.

19. The method according to claim 13, wherein, The network is a base station, and the sending of the indication message to the terminal includes: Send a second signaling interaction message to the terminal; the second signaling interaction message carries the indication message.

20. The method according to claim 19, wherein, The information type of the second signaling interaction information includes at least one of the following: RRC establishment process; RRC reconfiguration process; RRC recovery process.

21. The method according to claim 13, wherein, The network is an AMF network element. Before sending the indication message to the terminal, the method further includes: Acquire data and save the tariff status of the SIM card in the network element; The tariff status of the SIM card is encapsulated to obtain the first signaling interaction information.

22. The method according to claim 21, wherein, The acquisition of data to save the SIM card's tariff status in the network element includes any one of the following: Read the SIM card's tariff status from the data storage network element; The data received is stored in the network element to record the SIM card's tariff status.

23. The method according to claim 21, wherein, The data storage network element includes any one of the following: Unified Data Management Function (UDM) network element, Home Subscriber Server (HSS) network element, and Unified Data Storage Unit (UDR) network element.

24. A network access method applied to a data storage network element, the method comprising: Send the SIM card's tariff status in the terminal to the AMF network element, instructing the AMF network element to send the SIM card's tariff status to the terminal; The SIM card's tariff status is used to instruct the terminal to determine or stop initiating access requests to the network.

25. The method according to claim 24, wherein, The data storage network element includes any one of the UDM network element, HSS network element, and UDR network element.

26. A network access device, the device comprising: The information receiving module is used to receive instruction messages; The instruction message carries the tariff status of the terminal SIM card; The instruction response module is used to determine or stop initiating access requests to the network based on the tariff status of the SIM card in the instruction message.

27. A network access device, the device comprising: The information sending module is used to send instruction messages to the terminal; The instruction message carries the tariff status of the terminal SIM card; The instruction message is used to instruct the terminal to determine or stop initiating access requests to the network based on the tariff status of the SIM card.

28. A network access device, the device comprising: The information delivery module is used to send the tariff status of the SIM card in the terminal to the AMF network element, so as to instruct the AMF network element to send the tariff status of the SIM card to the terminal; The SIM card's tariff status is used to instruct the terminal to determine or stop initiating access requests to the network.

29. A communication device, comprising: Receiver and processor; The receiver is used to receive indication messages; The instruction message carries the tariff status of the terminal SIM card; The processor is configured to determine or stop initiating access requests to the network based on the tariff status of the SIM card in the instruction message.

30. A communication device, comprising: Transmitter; The transmitter is used to send an indication message to the terminal; The instruction message carries the tariff status of the terminal SIM card; The instruction message is used to instruct the terminal to determine or stop initiating access requests to the network based on the tariff status of the SIM card.

31. A communication device, comprising: Transmitter; The transmitter is used to send the tariff status of the SIM card in the terminal to the AMF network element, so as to instruct the AMF network element to send the tariff status of the SIM card to the terminal; The SIM card's tariff status is used to instruct the terminal to determine or stop initiating access requests to the network.

32. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 25.

33. A computer program product comprising a computer program that, when executed by a processor, implements the steps of the method according to any one of claims 1 to 25.

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