Message receiving method and apparatus

Abstract

The present disclosure provides a message receiving method and apparatus, a device, and a storage medium. The method comprises: receiving additional information that is sent by an access network device and is used for instructing a terminal to execute an operation; and executing an operation corresponding to the additional information. The present disclosure can improve the message transmission efficiency while saving the message transmission resource.

Description

Message receiving method and device Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a message receiving method, apparatus, device, and storage medium. Background Art

[0002] In communications systems, the emergence of the Internet of Things (IoT) enables remote monitoring, control, and management of devices and systems, making life easier for users. The emergence of IoT technology has led to significant progress in various industries. For example, terminals can establish connections with wireless access networks to enable data transmission.

[0003] Summary of the Invention

[0004] The present disclosure proposes a message receiving method, apparatus, device and storage medium to improve message transmission efficiency while saving message transmission resources.

[0005] According to a first aspect of an embodiment of the present disclosure, a message receiving method is proposed, where the method is executed by a terminal and includes:

[0006] receiving additional information sent by the access network device for instructing the terminal to perform an operation;

[0007] An operation corresponding to the additional information is performed.

[0008] According to a second aspect of an embodiment of the present disclosure, a message sending method is provided, the method being executed by an access network device, the method further comprising:

[0009] Additional information for instructing the terminal to perform an operation is sent to the terminal.

[0010] According to a third aspect of an embodiment of the present disclosure, a message sending method is proposed, where the method is performed by an access and mobility management function (AMF), and the method includes:

[0011] A first paging message is sent to an access network device, wherein the first paging message includes additional information for indicating terminal operation.

[0012] According to a fourth aspect of an embodiment of the present disclosure, a message sending method is proposed. The method is performed by a session management function (SMF), and the method includes:

[0013] receiving second downlink data sent by a user plane function (UPF), wherein the second downlink data includes additional information for instructing the terminal to perform an operation;

[0014] Send a communication message to an access and mobility function AMF, wherein the communication message includes the additional information.

[0015] According to a fifth aspect of an embodiment of the present disclosure, a message sending method is proposed, where the method is performed by a user plane function (UPF), and the method includes:

[0016] Send additional information to the access network device to instruct the terminal to perform an operation.

[0017] According to a sixth aspect of an embodiment of the present disclosure, a message sending method is proposed, where the method is performed by a core network device, and the method includes:

[0018] Send additional information to the access network device to instruct the terminal to perform an operation.

[0019] According to a seventh aspect of an embodiment of the present disclosure, a terminal is provided, the device including:

[0020] a transceiver module, configured to receive additional information sent by an access network device for instructing the terminal to perform an operation;

[0021] A processing module is used to perform operations corresponding to the additional information.

[0022] According to an eighth aspect of an embodiment of the present disclosure, an access network device is provided, the device including:

[0023] The transceiver module is used to send additional information for instructing the terminal to perform an operation to the terminal.

[0024] According to a ninth aspect of an embodiment of the present disclosure, an access and mobility management function (AMF) is proposed, the apparatus including:

[0025] The transceiver module is used to send a first paging message to the access network device, wherein the first paging message includes additional information for indicating terminal operation.

[0026] According to a tenth aspect of an embodiment of the present disclosure, a session management function (SMF) is proposed, wherein the apparatus includes:

[0027] a transceiver module, configured to receive second downlink data sent by a user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation;

[0028] The transceiver module is further used to send a communication message to the access and mobility management function AMF, wherein the communication message includes the additional information.

[0029] According to an eleventh aspect of an embodiment of the present disclosure, a user plane function (UPF) is proposed, the apparatus including:

[0030] The transceiver module is used to send additional information for instructing the terminal to perform an operation to the access network device.

[0031] According to a twelfth aspect of an embodiment of the present disclosure, a core network device is provided, the device including:

[0032] The transceiver module is used to send additional information for indicating the terminal operation to the access network device.

[0033] According to a thirteenth aspect of the embodiments of the present disclosure, a terminal is provided, including:

[0034] one or more processors;

[0035] The terminal is used to execute the message receiving method described in any one of the first aspects.

[0036] According to a fourteenth aspect of an embodiment of the present disclosure, an access network device is provided, including:

[0037] one or more processors;

[0038] The access network device is used to execute the message sending method described in any one of the second aspects.

[0039] According to a fifteenth aspect of an embodiment of the present disclosure, a first network element is provided, including:

[0040] one or more processors;

[0041] Among them, the first network element is used to execute the message sending method described in any one of the third aspects.

[0042] According to a sixteenth aspect of an embodiment of the present disclosure, a second network element is provided, including:

[0043] one or more processors;

[0044] Among them, the second network element is used to execute the message sending method described in any one of the fourth aspects.

[0045] According to a seventeenth aspect of an embodiment of the present disclosure, a third network element is provided, including:

[0046] one or more processors;

[0047] Among them, the third network element is used to execute the message sending method described in any one of the fifth aspects.

[0048] According to an eighteenth aspect of an embodiment of the present disclosure, a core network device is provided, including:

[0049] one or more processors;

[0050] Among them, the core network device is used to execute the message sending method described in any one of the sixth aspects.

[0051] According to the nineteenth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a terminal, an access network device and a core network device, wherein the terminal is configured to implement the message receiving method described in any one of the first aspect, the access network device is configured to implement the message sending method described in any one of the second aspect, and the core network device is configured to implement the message sending method described in any one of the third to sixth aspects.

[0052] According to the twentieth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the message receiving method as described in any one of the first aspect or the message sending method as described in any one of the second to sixth aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0054] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0055] FIG2 is a schematic diagram illustrating an example of a network-triggered service request process provided by an embodiment of the present disclosure;

[0056] FIG3A is an interactive diagram of a message receiving method provided by an embodiment of the present disclosure;

[0057] FIG3B is an interactive diagram of a message receiving method provided by an embodiment of the present disclosure;

[0058] FIG3C is an interactive diagram of a message receiving method provided by an embodiment of the present disclosure;

[0059] FIG4A is a flow chart of a message receiving method provided by yet another embodiment of the present disclosure;

[0060] FIG4B is a flow chart of a message receiving method provided by yet another embodiment of the present disclosure;

[0061] FIG4C is a flow chart of a message receiving method provided by yet another embodiment of the present disclosure;

[0062] FIG5A is a schematic diagram of a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0063] FIG5B is a schematic diagram of a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0064] FIG5C is a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0065] FIG6A is a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0066] FIG7A is a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0067] FIG8A is a schematic flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0068] FIG8B is a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0069] FIG8C is a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0070] FIG9A is a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0071] FIG9B is a schematic flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0072] FIG9C is a flow chart of a message sending method provided by yet another embodiment of the present disclosure;

[0073] FIG10A is a flow chart of a message receiving method provided in yet another embodiment of the present disclosure;

[0074] FIG11A is a schematic structural diagram of a terminal provided by yet another embodiment of the present disclosure;

[0075] FIG11B is a schematic structural diagram of an access network device provided by an embodiment of the present disclosure;

[0076] FIG11C is a schematic structural diagram of an AMF provided by an embodiment of the present disclosure;

[0077] FIG11D is a schematic structural diagram of an SMF provided by an embodiment of the present disclosure;

[0078] FIG11E is a schematic structural diagram of an SMF provided by an embodiment of the present disclosure;

[0079] FIG11F is a schematic structural diagram of a core network device provided by an embodiment of the present disclosure;

[0080] FIG12A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0081] FIG12B is a schematic structural diagram of a chip provided in accordance with an embodiment of the present disclosure. DETAILED DESCRIPTION

[0082] The present disclosure proposes a message receiving method, apparatus, device and storage medium to improve message transmission efficiency while saving message transmission resources.

[0083] According to a first aspect of an embodiment of the present disclosure, a message receiving method is proposed, where the method is executed by a terminal and includes:

[0084] receiving additional information sent by the access network device for instructing the terminal to perform an operation;

[0085] An operation corresponding to the additional information is performed.

[0086] In the above embodiment, additional information for instructing the terminal to perform an operation can be received, and a transmission mechanism for additional information can be provided, thereby reducing the situation where the transmission mechanism of additional information is unclear and the additional information cannot be transmitted, thereby increasing the probability of successful information transmission and improving the message transmission efficiency.

[0087] In conjunction with some embodiments of the first aspect, in some embodiments, the receiving additional information sent by the access network device to instruct the terminal to perform an operation includes:

[0088] A first paging message sent by an access network device is received, wherein the first paging message includes additional information for instructing the terminal to perform an operation.

[0089] In the above embodiment, since the first paging message includes additional information for instructing the terminal to perform an operation, information instructing the terminal to perform an operation can be directly sent when no connection is established between the terminal and the access network device. This can reduce the message transmission steps, reduce the situation where the message cannot be transmitted due to insufficient downlink resources, reduce the resources consumed in establishing a connection between the terminal and the access network device, and improve the message transmission efficiency while saving message transmission resources.

[0090] In combination with some embodiments of the first aspect, in some embodiments, the terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0091] In conjunction with some embodiments of the first aspect, in some embodiments, the receiving additional information sent by the access network device to instruct the terminal to perform an operation includes:

[0092] First downlink data sent by the access network device is received, wherein the first downlink data includes additional information for instructing the terminal to perform an operation.

[0093] In the above embodiment, the instruction for instructing the terminal operation can be sent through the first downlink data, thereby improving the accuracy of instruction transmission and the accuracy of terminal execution of the operation.

[0094] In combination with some embodiments of the first aspect, in some embodiments, the terminal is in a radio resource control inactive RRC_Inactive state.

[0095] According to a second aspect of an embodiment of the present disclosure, a message sending method is proposed, where the method is performed by an access network device, and the method includes:

[0096] Additional information for instructing the terminal to perform an operation is sent to the terminal.

[0097] In the above embodiment, additional information for instructing the terminal to perform an operation can be sent to the terminal, providing a transmission mechanism for additional information, reducing the situation where the transmission mechanism of additional information is unclear and resulting in the inability to transmit additional information, thereby increasing the probability of successful information transmission and improving message transmission efficiency.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, sending additional information for instructing the terminal to perform an operation to the terminal includes:

[0099] receiving a first paging message sent by an access and mobility management function (AMF), wherein the first paging message includes additional information indicating a terminal operation;

[0100] Sending the first paging message to the terminal.

[0101] In the above embodiment, since the first paging message includes additional information for instructing the terminal to perform an operation, when no connection is established between the terminal and the access network device, information instructing the terminal to perform an operation can be directly sent to the terminal by sending the first paging message, thereby reducing the message transmission steps, saving message transmission resources and improving message transmission efficiency.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, sending additional information for instructing the terminal to perform an operation to the terminal includes:

[0103] receiving first downlink data sent by a user plane function (UPF), wherein the first downlink data includes additional information for instructing the terminal to perform an operation;

[0104] The first downlink data is sent to the terminal.

[0105] In the above embodiment, first downlink data may be received, and the first downlink data includes instructions for instructing terminal operations, thereby providing an instruction transmission mechanism to improve the accuracy of instruction transmission and the accuracy of terminal operation execution.

[0106] According to a third aspect of an embodiment of the present disclosure, a message sending method is proposed, where the method is performed by an access and mobility management function (AMF), and the method includes:

[0107] A first paging message is sent to an access network device, wherein the first paging message includes additional information for indicating terminal operation.

[0108] In the above embodiment, the expanded first paging message can be sent to the access network device, providing an expansion mechanism for the paging message, which can reduce message transmission steps, save message transmission resources and improve message transmission efficiency.

[0109] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0110] receiving a communication message sent by a session management function SMF, wherein the communication message includes the additional information;

[0111] The second paging message is extended according to the communication message to generate the first paging message.

[0112] In the above embodiment, the second paging message is extended according to the communication message to generate the first paging message, which can improve the accuracy of paging message extension, provide a paging message extension mechanism, save message transmission resources and improve message transmission efficiency.

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

[0114] Determine whether to extend the second paging message according to at least one of the following information:

[0115] The contract information of the terminal;

[0116] Local policy information of the access and mobility management function AMF;

[0117] capability information of the terminal supporting the first paging message;

[0118] The AMF supports message extension capability information.

[0119] According to a fourth aspect of an embodiment of the present disclosure, a message sending method is proposed, where the method is executed by a session management function (SMF), and the method includes:

[0120] receiving second downlink data sent by a user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation;

[0121] Send a communication message to an access and mobility function AMF, wherein the communication message includes the additional information.

[0122] In the above embodiment, the second downlink data can be received, additional information for instructing the terminal to perform an operation can be sent to the AMF, and the paging message can be extended to improve resource utilization efficiency.

[0123] According to a fifth aspect of an embodiment of the present disclosure, a message sending method is proposed, characterized in that the method is performed by a user plane function (UPF), and the method includes:

[0124] Send additional information to the access network device to instruct the terminal to perform an operation.

[0125] In the above embodiment, additional information for instructing the terminal to perform an operation can be sent to the access network device, so that the access network device can send additional information for instructing the terminal to perform an operation to the terminal, providing a transmission mechanism for additional information, reducing the situation where the additional information cannot be transmitted due to unclear transmission mechanism of additional information, and can increase the probability of successful information transmission and improve message transmission efficiency.

[0126] In conjunction with some embodiments of the fifth aspect, in some embodiments, sending additional information for instructing the terminal to perform an operation to the access network device includes:

[0127] According to the local policy of the user plane function UPF, the second downlink data is sent to the session management function SMF, wherein the second downlink data includes the additional information for instructing the terminal to perform the operation, and the second downlink data is used to instruct the SMF to send a notification message to the AMF, and the AMF sends the additional information for instructing the terminal to perform the operation to the access network device.

[0128] In the above embodiment, the second downlink data can be sent to the SMF, and additional information for instructing the terminal to perform an operation can be sent to the SMF so that the SMF provides additional information for instructing the terminal to perform an operation to the AMF, and the paging message can be expanded to improve resource utilization efficiency.

[0129] In conjunction with some embodiments of the fifth aspect, in some embodiments, sending additional information for instructing the terminal to perform an operation to the access network device includes:

[0130] First downlink data is sent to an access network device, wherein the first downlink data includes additional information for instructing the terminal to perform an operation.

[0131] In the above embodiment, the first downlink data can be sent directly to the access network device, wherein the first downlink data includes instructions for instructing terminal operations, which can provide an instruction transmission mechanism, improve the accuracy of instruction transmission, and improve the accuracy of terminal execution operations.

[0132] According to a sixth aspect of an embodiment of the present disclosure, a message sending method is proposed, where the method is performed by a core network device, and the method includes:

[0133] Send additional information to the access network device to instruct the terminal to perform an operation.

[0134] In the above embodiment, additional information for instructing the terminal to perform an operation can be sent to the access network device, so that the access network device can send additional information for instructing the terminal to perform an operation to the terminal, providing a transmission mechanism for additional information, reducing the situation where the additional information cannot be transmitted due to unclear transmission mechanism of additional information, and can increase the probability of successful information transmission and improve message transmission efficiency.

[0135] In conjunction with some embodiments of the sixth aspect, in some embodiments, sending additional information for instructing the terminal to perform an operation to the access network device includes:

[0136] A first paging message is sent to an access network device, wherein the first paging message includes additional information for indicating terminal operation.

[0137] In the above embodiment, since the first paging message includes additional information for instructing the terminal to perform an operation, information instructing the terminal to perform an operation can be directly sent when no connection is established between the terminal and the access network device. This can reduce the message transmission steps, reduce the situation where the message cannot be transmitted due to insufficient downlink resources, expand the paging message, and improve the message transmission efficiency while saving message transmission resources.

[0138] In conjunction with some embodiments of the sixth aspect, in some embodiments, sending additional information for instructing the terminal to perform an operation to the access network device includes:

[0139] Sending first downlink data to the access network device, wherein the first downlink data includes the additional information used to instruct the terminal to perform an operation.

[0140] According to a seventh aspect of an embodiment of the present disclosure, a terminal is provided, the device including:

[0141] a transceiver module, configured to receive additional information sent by an access network device for instructing the terminal to perform an operation;

[0142] A processing module is used to perform operations corresponding to the additional information.

[0143] According to an eighth aspect of an embodiment of the present disclosure, an access network device is provided, the device including:

[0144] The transceiver module is used to send additional information for instructing the terminal to perform an operation to the terminal.

[0145] According to a ninth aspect of an embodiment of the present disclosure, an access and mobility management function (AMF) is proposed, the apparatus including:

[0146] The transceiver module is used to send a first paging message to the access network device, wherein the first paging message includes additional information for indicating terminal operation.

[0147] According to a tenth aspect of an embodiment of the present disclosure, a session management function (SMF) is proposed, wherein the apparatus includes:

[0148] a transceiver module, configured to receive second downlink data sent by a user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation;

[0149] The transceiver module is further used to send a communication message to the access and mobility management function AMF, wherein the communication message includes the additional information.

[0150] According to an eleventh aspect of an embodiment of the present disclosure, a user plane function (UPF) is proposed, the apparatus including:

[0151] The transceiver module is used to send additional information for instructing the terminal to perform an operation to the access network device.

[0152] According to a twelfth aspect of an embodiment of the present disclosure, a core network device is provided, the device including:

[0153] The transceiver module is used to send additional information for indicating the terminal operation to the access network device.

[0154] According to a thirteenth aspect of the embodiments of the present disclosure, a terminal is provided, including:

[0155] one or more processors;

[0156] The terminal is used to execute the message receiving method described in any one of the first aspects.

[0157] According to a fourteenth aspect of an embodiment of the present disclosure, an access network device is provided, including:

[0158] one or more processors;

[0159] The access network device is used to execute the message sending method described in any one of the second aspects.

[0160] According to a fifteenth aspect of an embodiment of the present disclosure, a first network element is provided, including:

[0161] one or more processors;

[0162] Among them, the first network element is used to execute the message sending method described in any one of the third aspects.

[0163] According to a sixteenth aspect of an embodiment of the present disclosure, a second network element is provided, including:

[0164] one or more processors;

[0165] Among them, the second network element is used to execute the message sending method described in any one of the fourth aspects.

[0166] According to a seventeenth aspect of an embodiment of the present disclosure, a third network element is provided, including:

[0167] one or more processors;

[0168] Among them, the third network element is used to execute the message sending method described in any one of the fifth aspects.

[0169] According to an eighteenth aspect of an embodiment of the present disclosure, a core network device is provided, including:

[0170] one or more processors;

[0171] Among them, the core network device is used to execute the message sending method described in any one of the sixth aspects.

[0172] According to the nineteenth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a terminal, an access network device and a core network device, wherein the terminal is configured to implement the message receiving method described in any one of the first aspect, the access network device is configured to implement the message sending method described in any one of the second aspect, and the core network device is configured to implement the message sending method described in any one of the third to sixth aspects.

[0173] According to the twentieth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the message receiving method as described in any one of the first aspect or the message sending method as described in any one of the second to sixth aspects.

[0174] The present disclosure provides a message receiving method. In some embodiments, the terms "message receiving method" and "information processing method" and "communication method" are interchangeable; the terms "message receiving device" and "information processing device" and "communication device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0175] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0176] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0177] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0178] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0179] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0180] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0181] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0182] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0183] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0184] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0185] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0186] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0187] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0188] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0189] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0190] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0191] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0192] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0193] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0194] As shown in FIG1 , a communication system 100 includes a terminal 101 , an access network device 102 , and a core network device 103 .

[0195] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0196] In some embodiments, the access network device 102 is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0197] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0198] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0199] In some embodiments, the core network device 103 may be a single device including a first network element 1031, a second network element 1032, etc., or may be a plurality of devices or a device group including all or part of the first network element 1031, the second network element 1032, etc. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0200] In some embodiments, the first network element is, for example, an Access and Mobility Management Function (AMF).

[0201] In some embodiments, the first network element is used to "be responsible for functions such as terminal identity authentication, authorization, registration, mobility management and connection management", but the name is not limited to this.

[0202] In some embodiments, the second network element is, for example, a Session Management Function (SMF).

[0203] In some embodiments, the second network element is used to "be responsible for interacting with the decoupled data plane, creating, updating and deleting protocol data unit (PDU) sessions, and user plane function (UPF) management of session contexts", and the name is not limited thereto.

[0204] In some embodiments, the third network element is, for example, a user plane function (UPF).

[0205] In some embodiments, the third network element is used to "implement user interface services of the 5G network, including but not limited to: air interface, routing, QoS (quality of service) and security of the network architecture", and the name is not limited to this.

[0206] In some embodiments, the third network element may be independent of the core network device.

[0207] In some embodiments, the third network element may be part of a core network device.

[0208] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0209] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0210] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0211] Optionally, in some embodiments of the present disclosure, the Internet of Things (IoT) has connected billions of devices to the internet, and cellular IoT technologies such as LTE-M and NB-IoT have made significant progress in enabling use cases across a wide range of vertical industries. However, many IoT devices rely on batteries. Recently, IoT technology has evolved to include ambient energy harvesting, a method for generating electricity from the environment without relying on batteries.

[0212] Optionally, in some embodiments of the present disclosure, leveraging the ubiquitous deployment and abundant system capacity of 5G systems, ambient power-enabled IoT technologies offer 5G MNOs a potential opportunity to expand their 3GPP IoT service portfolios, support new types of devices, and address use cases where battery replacement is considered inefficient and / or environmentally problematic. These use cases include personalized healthcare, smart transportation, industrial applications in hazardous locations, smart logistics, smart warehousing, smart homes, and smart cities. New battery-free devices with limited energy storage capabilities complement existing cellular IoT services and are characterized by low cost, high density, large deployment volumes, and ultra-low complexity, i.e., devices with limited functionality and limited capabilities that require only small and infrequent data transmissions.

[0213] Optionally, FIG2 is a schematic diagram illustrating an example of a network-triggered service request process provided by an embodiment of the present disclosure. As shown in FIG2 , the service request process includes:

[0214] Step 1: UPF receives downlink data;

[0215] Step 2a: Data notification: UPF sends a data notification message to SMF;

[0216] Step 2b: Data notification confirmation: SMF feeds back data notification confirmation to UPF;

[0217] Step 2c: UPF sends downlink data to SMF: If SMF instructs UPF to perform this step, UPF forwards the downlink data packet to SMF (i.e., SMF buffers the data packet);

[0218] Step 3a: Namf-Communication-N1N2 message transmission: SMF sends a Network Access and Mobility Management Function (Namf)_Communication_N1N2 message transmission request to AMF, which includes (SUPI, PDU session ID, N1 session management (SM) container (SM message), N2SM information (Quality of Service (QoS) flow identifier, QoS profile, CN N3 tunnel information, s-Network Slice Selection Assistance Information (NSSAI)); where CN N3 can be, for example, the N3 interface of the core network;

[0219] Step 3b: namf-communication-N1N2 message transmission response;

[0220] Step 4a: Reactivation: If the terminal is in the Connection Manager (CM)-CONNECTED state in the access associated with the PDU Session ID received from the SMF in step 3a, the terminal triggers steps 4 to 22 of the service request procedure (see clause 4.2.3.2) to be performed for this PDU Session (i.e., radio resources are established and, in case the user plane is to be activated, an N3 tunnel is established) without sending a paging message to the Radio Access Network (R)AN) node and the terminal;

[0221] Step 4b: Paging: When the terminal is in the CM_IDLE state, the AMF sends a CN paging message to the RAN. The RAN sends a paging message to the terminal;

[0222] Step 4c: NAS notification;

[0223] Step 5: Namf-Communication-N1N2 transmission failure notification: AMF sends Namf_Communication_N1N2 transmission failure notification to SMF;

[0224] Step 6: Service Request Procedure: If the terminal is in the CM-IDLE state in a 3rd Generation Partnership Project (3GPP) access, upon receiving a paging request for a Packet Data Unit (PDU) session associated with the 3GPP access, the terminal shall initiate a terminal-triggered service request procedure to enter the CM_CONNECTED state to activate / create a user plane connection for delivering downlink data.

[0225] Step 6a: Namf-Communication-N1N2 transmission failure notification: AMF sends Namf_Communication_N1N2 transmission failure notification to SMF;

[0226] Step 7: Terminal Configuration Update Procedure: If the AMF has paged the terminal to trigger the Service Request procedure, the AMF shall initiate the Terminal Configuration Update procedure defined in clause 4.2.4.2 to allocate a new 5th Generation Mobile Communication Technology (5G) Globally Unique Temporary Identifier (GUTI);

[0227] Step 8: The UPF sends the buffered downlink data to the terminal through the (R)AN node that performs the service request procedure.

[0228] In one embodiment of the present disclosure, when downlink data is available from the network to the terminal, the network triggers paging the terminal, and a connection must be established between the terminal and the RAN, for example, by triggering a service request procedure to enter a connected state and / or activating / creating a user plane connection to download downlink data from the network. However, for ambient IoT devices, the downlink data may be very small, for example, a few bits dedicated to instructions, and ambient IoT devices are defined as passive devices or devices with very limited power, so the above process is not necessary and effective. Passive devices, for example, can be devices without a power supply.

[0229] Optionally, in one embodiment of the present disclosure, instructions can be transmitted while a connection is established between the terminal and the RAN, so that the terminal can perform operations corresponding to the instructions. Paging messages are only used for network paging terminals, and the transmission mechanism for additional information other than paging is unclear, resulting in low message transmission efficiency.

[0230] The following describes in detail a message receiving method, apparatus, device, and storage medium provided by embodiments of the present disclosure with reference to the accompanying drawings.

[0231] FIG3A is an interactive diagram of a message receiving method provided by an embodiment of the present disclosure. As shown in FIG3A , the method may include the following steps:

[0232] Step S3101: The core network device sends additional information for instructing the terminal to perform an operation to the access network device;

[0233] In one embodiment of the present disclosure, the core network device may include, for example, at least one network element. The core network device of the embodiment of the present disclosure may include, for example, a first network element, a second network element, and a third network element. The first network element may be, for example, an AMF, the second network element may be, for example, an SMF, and the third network element may be, for example, a UPF.

[0234] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0235] Optionally, in one embodiment of the present disclosure, a core network device may send additional information to an access network device for instructing a terminal to perform an operation. For example, a third network element (UPF) in the core network device may send first downlink data to the access network device, where the first downlink data includes additional information for instructing the terminal to perform an operation. The terminal is in a radio resource control (RRC_Inactive) state.

[0236] For example, in one embodiment of the present disclosure, the first network element AMF may send a first paging message to the access network device, wherein the first paging message includes additional information for instructing the terminal to perform an operation. The third network element UPF may send second downlink data to the second network element SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation. The second network element SMF may receive the second downlink data sent by the third network element UPF and send a communication message to the first network element AMF, wherein the communication message includes additional information for instructing the terminal to perform an operation. The first network element AMF receives the communication message sent by the second network element SMF so that the first network element AMF can receive additional information for instructing the terminal to perform an operation. The terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0237] Optionally, in one embodiment of the present disclosure, the AMF may extend the second paging message according to the communication message to generate a first paging message, wherein the first paging message includes additional information for indicating terminal operation.

[0238] Optionally, in one embodiment of the present disclosure, the second paging message may, for example, refer to a message that has not been expanded. The first paging message refers to a message obtained by expanding the second paging message. The first in the first paging message is only used to distinguish the second paging message and does not specifically refer to a fixed message.

[0239] Optionally, in one embodiment of the present disclosure, the second paging message may be extended by, for example, adding non-paging information to the second paging message.

[0240] Optionally, in one embodiment of the present disclosure, the AMF determines whether to extend the second paging message according to at least one of the following information:

[0241] The terminal's contract information;

[0242] Local policy information of the access and mobility management function (AMF);

[0243] capability information of the terminal supporting the first paging message;

[0244] AMF supports message extension capability information.

[0245] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on the subscription information of the terminal, for example.

[0246] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on local policy information of the access and mobility management function AMF, for example.

[0247] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on the capability information of the terminal supporting the first paging message, for example.

[0248] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on capability information of the AMF supporting message extension, for example.

[0249] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on all of the following information:

[0250] The terminal's contract information;

[0251] Local policy information of the access and mobility management function (AMF);

[0252] capability information of the terminal supporting the first paging message;

[0253] AMF supports message extension capability information.

[0254] Optionally, in some embodiments of the present disclosure, the AMF may, for example, send a contract information request to a unified data management function (UDM). The UDM may send contract information in response to the contract information request to the AMF. The contract information of the terminal may, for example, be stored in the UDM.

[0255] Among them, in some embodiments of the present disclosure, the capability information of AMF supporting message extension can be used to indicate whether AMF supports the extension of paging messages, for example.

[0256] Optionally, in one embodiment of the present disclosure, the communication message may be, for example, a Namf_Communication_N1N2 message, wherein the communication message includes additional information for instructing the terminal to perform an operation, and the additional information may be, for example, information for instructing the terminal to perform a non-paging operation.

[0257] Step S3102: The access network device receives additional information sent by the core network device to instruct the terminal to perform an operation;

[0258] Optionally, in one embodiment of the present disclosure, the access network device receives additional information sent by the core network device to instruct the terminal to perform an operation.

[0259] Optionally, in one embodiment of the present disclosure, the access network device may receive first downlink data sent by the third network element UPF, wherein the first downlink data includes additional information for instructing the terminal to perform an operation.

[0260] Optionally, in one embodiment of the present disclosure, the access network device may receive a first paging message sent by the first network element AMF, wherein the first paging message includes additional information for instructing the terminal to perform an operation.

[0261] Step S3103: The access network device sends additional information to the terminal for instructing the terminal to perform an operation;

[0262] Optionally, the access network device may send additional information to the terminal for instructing the terminal to perform an operation.

[0263] Step S3104: The terminal receives additional information sent by the access network device to instruct the terminal to perform an operation;

[0264] Step S3105: The terminal performs an operation corresponding to the additional information.

[0265] Optionally, in an embodiment of the present disclosure, the additional information may include, for example, a plurality of bit instructions. The terminal may, for example, perform operations corresponding to the plurality of bit instructions according to the plurality of bit instructions in the first paging message.

[0266] Optionally, in an embodiment of the present disclosure, the additional information may be, for example, an “open instruction.” When the terminal receives the additional information sent by the access network device to instruct the terminal to perform an operation, the terminal may perform, for example, an open operation.

[0267] In the above embodiment, additional information instructing the terminal to perform an operation can be sent to the terminal, providing a transmission mechanism for additional information, reducing the situation where the transmission mechanism of additional information is unclear and causing the additional information to fail to be transmitted, thereby increasing the probability of successful information transmission and improving message transmission efficiency.

[0268] Figure 3B is an interactive schematic diagram of a message receiving method provided by an embodiment of the present disclosure. Among them, in one embodiment of the present disclosure, the message receiving method shown in Figure 3B and the message receiving method shown in Figure 3C are both further operation processes of the message receiving method described in Figure 3A. Among them, the message receiving method shown in Figure 3B and the message receiving method shown in Figure 3C are parallel operation processes. For example, the embodiment shown in Figure 3C can be executed separately from the embodiment shown in Figure 3B. The difference between the message receiving method shown in Figure 3C and the message receiving method shown in Figure 3B can be, for example, determining the method for sending additional information based on the terminal status and the establishment information of the connection between the terminal and the access network device.

[0269] As shown in FIG3B , the method may include the following steps:

[0270] Step S3201: The UPF sends second downlink data (Downlink Data) to the session management function SMF according to the local policy of the user plane function UPF, where the second downlink data includes additional information for instructing the terminal to perform an operation;

[0271] In one embodiment of the present disclosure, the second downlink data is downlink data sent by the UPF to the SMF. The second in the second downlink data is used to distinguish it from the first downlink data. The second downlink data does not specifically refer to a fixed information. For example, when the additional information included in the second downlink data changes, the second downlink data may also change accordingly. For example, when the data transmission time point corresponding to the second downlink data changes, the second downlink data may also change accordingly.

[0272] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0273] For example, in one embodiment of the present disclosure, the terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0274] For example, in one embodiment of the present disclosure, the UPF sends second downlink data to the session management function SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation, and the terminal is in the radio resource control idle RRC IDLE state.

[0275] For example, in one embodiment of the present disclosure, the UPF sends second downlink data to the session management function SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation, and the terminal is in a radio resource control inactive RRC_Inactive state.

[0276] Step S3202, the SMF receives the second downlink data sent by the user plane function UPF;

[0277] Step S3203: The SMF sends a communication message to the access and mobility management function AMF, where the communication message includes additional information.

[0278] Optionally, in one embodiment of the present disclosure, the communication message may be, for example, a Namf_Communication_N1N2 message. The communication message includes additional information, for example, the SMF may send the additional information to the AMF. The additional information may be, for example, information for instructing the terminal to perform a non-paging operation.

[0279] Optionally, in one embodiment of the present disclosure, the attachment information may be, for example, information for instructing the terminal to perform an opening operation.

[0280] Step S3204: The AMF receives a communication message sent by the session management function SMF, where the communication message includes additional information.

[0281] Step S3205: The AMF extends the second paging message according to the communication message to generate a first paging message, where the first paging message includes additional information for indicating terminal operations;

[0282] Optionally, in one embodiment of the present disclosure, the second paging message may, for example, refer to a message that has not been expanded. The first paging message refers to a message obtained by expanding the second paging message. The first in the first paging message is only used to distinguish the second paging message and does not specifically refer to a fixed message.

[0283] Optionally, in one embodiment of the present disclosure, the second paging message may be extended by, for example, adding non-paging information to the second paging message.

[0284] Optionally, in one embodiment of the present disclosure, the AMF determines whether to extend the second paging message according to at least one of the following information:

[0285] The terminal's contract information;

[0286] Local policy information of the access and mobility management function (AMF);

[0287] capability information of the terminal supporting the first paging message;

[0288] AMF supports message extension capability information.

[0289] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on the subscription information of the terminal, for example.

[0290] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on local policy information of the access and mobility management function AMF, for example.

[0291] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on the capability information of the terminal supporting the first paging message, for example.

[0292] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on capability information of the AMF supporting message extension, for example.

[0293] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on all of the following information:

[0294] The terminal's contract information;

[0295] Local policy information of the access and mobility management function (AMF);

[0296] capability information of the terminal supporting the first paging message;

[0297] AMF supports message extension capability information.

[0298] Optionally, in some embodiments of the present disclosure, the AMF may, for example, send a contract information request to a unified data management function (UDM). The UDM may send contract information in response to the contract information request to the AMF. The contract information of the terminal may, for example, be stored in the UDM.

[0299] Among them, in some embodiments of the present disclosure, the capability information of AMF supporting message extension can be used to indicate whether AMF supports the extension of paging messages, for example.

[0300] Step S3206: The AMF sends a first paging message to the access network device, where the first paging message includes additional information indicating terminal operations.

[0301] Optionally, in one embodiment of the present disclosure, the first paging message may be, for example, a CN paging message.

[0302] Step S3207: The access network device receives a first paging message sent by the access and mobility management function AMF.

[0303] Step S3208: The access network device sends a first paging message to the terminal;

[0304] Optionally, in one embodiment of the present disclosure, the terminal may be, for example, an environmental Internet of Things device. The access network device may, for example, send a first paging message to the environmental Internet of Things device.

[0305] Step S3209: The terminal receives a first paging message sent by the access network device, where the first paging message includes additional information for indicating terminal operation;

[0306] Step S3210: The terminal extracts additional information from the first paging message and performs an operation corresponding to the additional information.

[0307] Optionally, in an embodiment of the present disclosure, the additional information may include, for example, a plurality of bit instructions. The terminal may, for example, perform operations corresponding to the plurality of bit instructions according to the plurality of bit instructions in the first paging message.

[0308] In the above embodiment, since the first paging message includes additional information for instructing the terminal to perform an operation, information instructing the terminal to perform an operation can be sent when no connection is established between the terminal and the access network device. This can reduce the message transmission steps, reduce the situation where the message cannot be transmitted due to insufficient downlink resources, reduce the resources consumed in establishing a connection between the terminal and the access network device, and improve the message transmission efficiency while saving message transmission resources.

[0309] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3201 to S3210. For example, step S3201 may be implemented as an independent embodiment, step S3210 may be implemented as an independent embodiment along with steps S3207 to S3208, and step S3210 may be implemented as an independent embodiment, but is not limited thereto.

[0310] In some embodiments, steps S3205 and S3206 may be executed in an interchanged order or simultaneously.

[0311] In some embodiments, steps S3203 to S3210 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0312] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3B .

[0313] FIG3C is an interactive diagram of a message receiving method provided by an embodiment of the present disclosure. In one embodiment of the present disclosure, the message receiving method shown in FIG3C and the message receiving method shown in FIG3A are parallel operation processes. For example, the embodiment shown in FIG3C can be executed separately from the embodiment shown in FIG3B. The difference between the message receiving method shown in FIG3C and the message receiving method shown in FIG3B can be, for example, determining the method for sending additional information based on the terminal status and the connection establishment information between the terminal and the access network device.

[0314] As shown in FIG3C , the method may include the following steps:

[0315] Step S3301: The UPF sends first downlink data to the access network device, where the first downlink data includes additional information for instructing the terminal to perform an operation;

[0316] Optionally, in one embodiment of the present disclosure, the first downlink data is downlink data sent directly by the UPF to the access network device when the terminal is in the RRC Inactive state. Therefore, the second downlink data and the first downlink data are received by different network elements. The first downlink data is only used to distinguish the second downlink data and does not specifically refer to fixed data. For example, when the instruction included in the first downlink data changes, the first downlink data may also change accordingly.

[0317] Optionally, in one embodiment of the present disclosure, the terminal is in a radio resource control inactive RRC Inactive state.

[0318] Step S3302: The access network device receives first downlink data sent by the user plane function UPF, where the first downlink data includes additional information for instructing the terminal to perform an operation;

[0319] Step S3303: The access network device sends first downlink data to the terminal;

[0320] Step S3304: The terminal receives first downlink data sent by the access network device;

[0321] Step S3305: The terminal extracts additional information from the first downlink data and performs an operation corresponding to the additional information.

[0322] Optionally, in one embodiment of the present disclosure, when a terminal receives first downlink data sent by an access network device, the terminal may obtain additional information in the first downlink data and perform an operation corresponding to the additional information.

[0323] In the above embodiment, the instruction for instructing the terminal operation can be sent through the first downlink data, so the instruction can be directly sent to the corresponding terminal, which can improve the accuracy of instruction transmission and the accuracy of terminal execution of operations.

[0324] The communication method according to the embodiments of the present disclosure may include at least one of steps S3301 to S3305. For example, step S3301 may be implemented as an independent embodiment, step S3304 may be implemented as an independent embodiment, steps S3302 to S3303 may be implemented as independent embodiments, and step S3304 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0325] In some embodiments, steps S3302 to S3304 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0326] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3C .

[0327] FIG4A is a flow chart of a message receiving method according to an embodiment of the present disclosure. As shown in FIG4A , the present disclosure embodiment relates to a message receiving method, which is executed by a terminal. The method includes:

[0328] Step S4101: receiving additional information sent by the access network device for instructing the terminal to perform an operation;

[0329] In one embodiment of the present disclosure, the terminal may receive additional information sent by the access network device to instruct the terminal to perform an operation.

[0330] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0331] Optionally, in one embodiment of the present disclosure, for example, a third network element (UPF) in a core network device may send first downlink data to an access network device, where the first downlink data includes additional information for instructing a terminal to perform an operation. The terminal is in a radio resource control inactive (RRC_Inactive) state. The access network device may send the first downlink data to the terminal. The terminal may receive the first downlink data, and the terminal may receive the additional information for instructing the terminal to perform an operation.

[0332] For example, in one embodiment of the present disclosure, the third network element UPF may send second downlink data to the second network element SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation. The second network element SMF may receive the second downlink data sent by the third network element UPF and send a communication message to the first network element AMF, wherein the communication message includes additional information for instructing the terminal to perform an operation. The first network element AMF may receive the communication message sent by the second network element SMF so that the first network element AMF may receive additional information for instructing the terminal to perform an operation. The first network element AMF may send a first paging message to the access network device. The first paging message includes additional information for instructing the terminal to perform an operation. The access network device may send the first paging message to the terminal. The terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0333] Step S4102: Execute an operation corresponding to the additional information.

[0334] Optionally, in an embodiment of the present disclosure, the additional information may include, for example, a plurality of bit instructions. The terminal may, for example, perform operations corresponding to the plurality of bit instructions according to the plurality of bit instructions in the first paging message.

[0335] Optionally, in an embodiment of the present disclosure, the additional information may be, for example, an “open instruction.” When the terminal receives the additional information sent by the access network device to instruct the terminal to perform an operation, the terminal may perform, for example, an open operation.

[0336] Optional implementations of step S4101 and step S4102 can refer to the optional implementations of step S3104 and step S3105 in FIG3A , and other related parts in the embodiment involved in FIG3A , which will not be described in detail here.

[0337] In the above embodiment, additional information for instructing the terminal to perform an operation can be received, and a transmission mechanism for additional information can be provided, thereby reducing the situation where the transmission mechanism of additional information is unclear and the additional information cannot be transmitted, thereby increasing the probability of successful information transmission and improving the message transmission efficiency.

[0338] Figure 4B is a flow chart of a message receiving method according to an embodiment of the present disclosure. In one embodiment of the present disclosure, the message receiving method shown in Figure 4B and the message receiving method shown in Figure 4C are both further operation processes of the message receiving method described in Figure 4A. In another embodiment, the message receiving method shown in Figure 4B and the message receiving method shown in Figure 4C are parallel operation processes. For example, the embodiment shown in Figure 4C can be executed separately from the embodiment shown in Figure 4B. The difference between the message receiving method shown in Figure 4C and the message receiving method shown in Figure 4B can be, for example, determining the method for sending additional information based on the terminal status and the establishment information of the connection between the terminal and the access network device.

[0339] As shown in FIG4B , an embodiment of the present disclosure relates to a message receiving method, which is executed by a terminal. The method includes:

[0340] Step S4201: receiving a first paging message sent by an access network device, wherein the first paging message includes additional information for instructing a terminal to perform an operation;

[0341] Step S4202: Execute an operation corresponding to the additional information.

[0342] For example, in one embodiment of the present disclosure, the execution subject of the embodiment of the present disclosure is a terminal, which can be, for example, an environmental Internet of Things device.

[0343] Optionally, in one embodiment of the present disclosure, the first paging message refers to a message obtained by extending the second paging message. The first in the first paging message is only used to distinguish the second paging message and does not specifically refer to a fixed message. The second paging message may, for example, refer to a message that has not been extended.

[0344] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0345] Optionally, in one embodiment of the present disclosure, the attachment information may be, for example, an “open instruction.” When the terminal receives a paging message, it may establish a connection with the access network device according to the paging message and may also perform an opening operation corresponding to the attachment information.

[0346] For example, in one embodiment of the present disclosure, the terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0347] Optional implementations of step S4201 and step 4202 can refer to the optional implementations of steps S3209 and 3210 in FIG3B and other related parts in the embodiment involved in FIG3A , which will not be repeated here.

[0348] FIG4C is a flow chart of a message receiving method according to an embodiment of the present disclosure. As shown in FIG4C , the embodiment of the present disclosure relates to a message receiving method, which is executed by a terminal. The method includes:

[0349] Step S4301: Receive first downlink data sent by an access network device, where the first downlink data includes additional information for instructing a terminal to perform an operation.

[0350] Optionally, in one embodiment of the present disclosure, the first downlink data is data exchanged between the UPF, the access network device, and the terminal when the terminal is in the RRC Inactive state. This first downlink data is only used to distinguish the second downlink data and does not specifically refer to fixed data. For example, when the instruction included in the first downlink data changes, the first downlink data may also change accordingly.

[0351] Optionally, in an embodiment of the present disclosure, the first downlink data may include, for example, an “open instruction.” When the terminal receives the first downlink data sent by the access network device, an open operation may be performed.

[0352] The optional implementation of step S4301 can refer to the optional implementation of step S3304 in Figure 3C and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.

[0353] In the above embodiment, instructions for instructing terminal operations can be sent via the first downlink data, so the instructions can be sent directly to the corresponding terminal, which can improve instruction transmission efficiency and accuracy, and improve the accuracy of terminal operation execution.

[0354] FIG5A is a flow chart of a message sending method according to an embodiment of the present disclosure. As shown in FIG5A , the embodiment of the present disclosure relates to a message sending method, which is executed by an access network device. The method includes:

[0355] Step S5101: Send additional information to the terminal for instructing the terminal to perform an operation.

[0356] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0357] Optionally, in one embodiment of the present disclosure, a core network device may send additional information to an access network device for instructing a terminal to perform an operation. For example, a third network element (UPF) in the core network device may send first downlink data to the access network device, where the first downlink data includes additional information for instructing the terminal to perform an operation. The terminal is in a radio resource control (RRC_Inactive) state. The access network device may receive the first downlink data and send the first downlink data to the terminal.

[0358] For example, in one embodiment of the present disclosure, the third network element UPF may send second downlink data to the second network element SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation. The second network element SMF may receive the second downlink data sent by the third network element UPF and send a communication message to the first network element AMF, wherein the communication message includes additional information for instructing the terminal to perform an operation. The first network element AMF receives the communication message sent by the second network element SMF so that the first network element AMF can receive the additional information for instructing the terminal to perform an operation. The first network element AMF may send a first paging message to the access network device, wherein the first paging message includes additional information for instructing the terminal to perform an operation. The access network device may receive the first paging message and send the first paging message to the terminal. The terminal is in at least one of a radio resource control idle RRCIDLE state and a radio resource control inactive RRC_Inactive state.

[0359] In the above embodiment, additional information for instructing the terminal to perform an operation can be sent to the terminal, providing a transmission mechanism for additional information, reducing the situation where the transmission mechanism of additional information is unclear and resulting in the inability to transmit additional information, thereby increasing the probability of successful information transmission and improving message transmission efficiency.

[0360] Figure 5B is a flow chart of a message sending method according to an embodiment of the present disclosure. In one embodiment of the present disclosure, the message receiving method shown in Figure 5B and the message receiving method shown in Figure 5C are both further operation processes of the message receiving method described in Figure 5A. In another embodiment, the message receiving method shown in Figure 5B and the message receiving method shown in Figure 5C are parallel operation processes. For example, the embodiment shown in Figure 5C can be executed separately from the embodiment shown in Figure 5B. The difference between the message receiving method shown in Figure 5C and the message receiving method shown in Figure 5B can be, for example, determining the sending method of the additional information based on the terminal status and the establishment information of the connection between the terminal and the access network device.

[0361] As shown in FIG5B , an embodiment of the present disclosure relates to a message sending method, which is executed by an access network device. The method includes:

[0362] Step S5201: receiving a first paging message sent by an access and mobility management function (AMF), where the first paging message includes additional information indicating terminal operation;

[0363] Step S5202: Send a first paging message to the terminal.

[0364] For example, in one embodiment of the present disclosure, the execution subject of the present disclosure is an access network device, which may be a RAN.

[0365] Optionally, in one embodiment of the present disclosure, the first paging message refers to a message obtained by extending the second paging message. The first in the first paging message is only used to distinguish the second paging message and does not specifically refer to a fixed message. The second paging message may, for example, refer to a message that has not been extended.

[0366] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0367] Optionally, in one embodiment of the present disclosure, the attachment information may be, for example, an "open instruction." Upon receiving the first paging message, the access network device may send the first paging message to the terminal. Upon receiving the paging message, the terminal may establish a connection with the access network device based on the paging message and may also perform an open operation corresponding to the attached information.

[0368] For example, in one embodiment of the present disclosure, the terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0369] Optional implementations of step S5201 and step S5202 can refer to the optional implementations of steps S3207 and 3208 in FIG3B and other related parts in the embodiment involved in FIG3A , which will not be described in detail here.

[0370] In the above embodiment, since the first paging message includes additional information for instructing the terminal to perform an operation, when no connection is established between the terminal and the access network device, information instructing the terminal to perform an operation can be directly sent to the terminal by sending the first paging message, which can reduce the message transmission steps, save message transmission resources and improve message transmission efficiency.

[0371] FIG5C is a flow chart of a message sending method according to an embodiment of the present disclosure. As shown in FIG5C , the embodiment of the present disclosure relates to a message sending method, which is executed by an access network device. The method includes:

[0372] Step S5301: receiving first downlink data sent by a user plane function UPF, where the first downlink data includes additional information for instructing the terminal to perform an operation;

[0373] Step S5302: Send first downlink data to the terminal.

[0374] Optionally, in one embodiment of the present disclosure, the first downlink data is data exchanged between the UPF, the access network device, and the terminal when the terminal is in the RRC Inactive state. This first downlink data is only used to distinguish the second downlink data and does not specifically refer to fixed data. For example, when the instruction included in the first downlink data changes, the first downlink data may also change accordingly.

[0375] Optionally, in one embodiment of the present disclosure, the first downlink data may include, for example, an "open instruction." The access network device may receive the first downlink data sent by the user plane function (UPF) and send the first downlink data to the terminal. Upon receiving the first downlink data sent by the access network device, the terminal may perform an open operation.

[0376] Optional implementations of step S5301 and step S5302 can be found in the optional implementations of steps S3302 and 3303 in FIG3C , and other related parts in the embodiment involved in FIG3A , which will not be described in detail here.

[0377] In the above embodiment, first downlink data may be received, and the first downlink data includes instructions for instructing terminal operations, thereby providing an instruction transmission mechanism to improve the accuracy of instruction transmission and the accuracy of terminal operation execution.

[0378] FIG6A is a flow chart of a message sending method according to an embodiment of the present disclosure. As shown in FIG6A , the embodiment of the present disclosure relates to a message sending method, which is executed by a first network element. The method includes:

[0379] Step S6101: Send a first paging message to an access network device, wherein the first paging message includes additional information for indicating terminal operations.

[0380] For example, in one embodiment of the present disclosure, the execution subject of the embodiment of the present disclosure is a first network element. The first network element may be, for example, an AMF.

[0381] Optionally, in one embodiment of the present disclosure, the first paging message refers to a message obtained by extending the second paging message. The first in the first paging message is only used to distinguish the second paging message and does not specifically refer to a fixed message. The second paging message may, for example, refer to a message that has not been extended.

[0382] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0383] Optionally, in one embodiment of the present disclosure, the attachment information may be, for example, an "open instruction." The AMF may send a first paging message to the access network device so that the access network device can send the first paging message to the terminal. Upon receiving the paging message, the terminal may establish a connection with the access network device based on the paging message and may also perform an open operation corresponding to the attached information.

[0384] Optionally, in one embodiment of the present disclosure, the AMF receives a communication message sent by the session management function SMF, wherein the communication message includes additional information;

[0385] Optionally, in one embodiment of the present disclosure, the AMF extends the second paging message according to the communication message to generate a first paging message.

[0386] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message according to at least one of the following information:

[0387] The terminal's contract information;

[0388] Local policy information of the access and mobility management function (AMF);

[0389] capability information of the terminal supporting the first paging message;

[0390] AMF supports message extension capability information.

[0391] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on the subscription information of the terminal, for example.

[0392] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on local policy information of the access and mobility management function AMF, for example.

[0393] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on the capability information of the terminal supporting the first paging message, for example.

[0394] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on capability information of the AMF supporting message extension, for example.

[0395] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on all of the following information:

[0396] The terminal's contract information;

[0397] Local policy information of the access and mobility management function (AMF);

[0398] capability information of the terminal supporting the first paging message;

[0399] AMF supports message extension capability information.

[0400] Optionally, in some embodiments of the present disclosure, the AMF may, for example, send a contract information request to a unified data management function (UDM). The UDM may send contract information in response to the contract information request to the AMF. The contract information of the terminal may, for example, be stored in the UDM.

[0401] Among them, in some embodiments of the present disclosure, the capability information of AMF supporting message extension can be used to indicate whether AMF supports the extension of paging messages, for example.

[0402] For example, in one embodiment of the present disclosure, the terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0403] Optional implementations of step S6101 can refer to the optional implementations of steps S3206, S3204 and S3205 in FIG3A and other related parts in the embodiment involved in FIG3A , which will not be described in detail here.

[0404] In the above embodiment, the expanded first paging message can be sent to the access network device, providing an expansion mechanism for the paging message, which can reduce message transmission steps, save message transmission resources and improve message transmission efficiency.

[0405] FIG7A is a flow chart of a message sending method according to an embodiment of the present disclosure. As shown in FIG7A , the embodiment of the present disclosure relates to a message sending method, which is executed by a second network element. The method includes:

[0406] Step S7101: receiving second downlink data sent by a user plane function UPF, where the second downlink data includes additional information for instructing the terminal to perform an operation;

[0407] Step S7102: Send a communication message to the access and mobility management function AMF, where the communication message includes additional information.

[0408] For example, in one embodiment of the present disclosure, the execution subject of the embodiment of the present disclosure is a second network element, which may be, for example, an SMF.

[0409] Optionally, in one embodiment of the present disclosure, the first paging message refers to a message obtained by extending the second paging message. The first in the first paging message is only used to distinguish the second paging message and does not specifically refer to a fixed message. The second paging message may, for example, refer to a message that has not been extended.

[0410] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0411] Optionally, in one embodiment of the present disclosure, the attachment information may be, for example, an “open instruction.” The first paging message may include, for example, an “open instruction” and “paging information.”

[0412] For example, in one embodiment of the present disclosure, the terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0413] Optional implementations of step S7101 and step 7102 can refer to the optional implementations of steps S3202 and 3203 in FIG3A and other related parts in the embodiment involved in FIG3A , which will not be described in detail here.

[0414] In the above embodiment, the second downlink data can be received, additional information for instructing the terminal to perform an operation can be sent to the AMF, and the paging message can be extended to improve resource utilization efficiency.

[0415] FIG8A is a flow chart of a message sending method according to an embodiment of the present disclosure. As shown in FIG8A , the embodiment of the present disclosure relates to a message sending method, which is executed by a third network element. The method includes:

[0416] Step S8101: Send additional information for instructing the terminal to perform an operation to the access network device.

[0417] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0418] For example, in one embodiment of the present disclosure, the UPF may send first downlink data to the access network device, wherein the first downlink data includes additional information for instructing the terminal to perform an operation, wherein the terminal is in a radio resource control inactive RRC_Inactive state.

[0419] For example, in one embodiment of the present disclosure, the UPF may send second downlink data to the second network element SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation. The second network element SMF may receive the second downlink data sent by the third network element UPF, and send a communication message to the first network element AMF, wherein the communication message includes additional information for instructing the terminal to perform an operation. The first network element AMF receives the communication message sent by the second network element SMF so that the first network element AMF can receive additional information for instructing the terminal to perform an operation. The first network element AMF may send a first paging message to the access network device, wherein the first paging message includes additional information for instructing the terminal to perform an operation. The terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0420] In the above embodiment, additional information for instructing the terminal to perform an operation can be sent to the access network device, so that the access network device can send additional information for instructing the terminal to perform an operation to the terminal, providing a transmission mechanism for additional information, reducing the situation where the additional information cannot be transmitted due to unclear transmission mechanism of additional information, and can increase the probability of successful information transmission and improve message transmission efficiency.

[0421] Figure 8B is a flow chart of a message sending method according to an embodiment of the present disclosure. In one embodiment of the present disclosure, the message receiving method shown in Figure 8B and the message receiving method shown in Figure 8C are both further operation processes of the message receiving method described in Figure 8A. In another embodiment, the message receiving method shown in Figure 8B and the message receiving method shown in Figure 8C are parallel operation processes. For example, the embodiment shown in Figure 8C can be executed separately from the embodiment shown in Figure 8B. The difference between the message receiving method shown in Figure 8C and the message receiving method shown in Figure 8B can be, for example, determining the sending method of the additional information based on the terminal status and the establishment information of the connection between the terminal and the access network device.

[0422] As shown in FIG8B , the embodiment of the present disclosure relates to a message sending method, which is executed by a third network element. The method includes:

[0423] Step S8201: Send second downlink data to the session management function SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation.

[0424] For example, in one embodiment of the present disclosure, the execution subject of the present disclosure is a third network element, which may be a UPF.

[0425] In one embodiment of the present disclosure, the "second" in the second downlink data is used to distinguish it from the first downlink data. The second downlink data does not specifically refer to fixed information. For example, when the additional information included in the second downlink data changes, the second downlink data may also change accordingly. For example, when the data transmission time point corresponding to the second downlink data changes, the second downlink data may also change accordingly.

[0426] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0427] For example, in one embodiment of the present disclosure, the terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0428] For example, in one embodiment of the present disclosure, the UPF sends second downlink data to the session management function SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation, and the terminal is in the radio resource control idle RRC IDLE state.

[0429] For example, in one embodiment of the present disclosure, the UPF sends second downlink data to the session management function SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation, and the terminal is in a radio resource control inactive RRC_Inactive state.

[0430] The optional implementation of step S8201 can refer to the optional implementation of step S3201 in Figure 3B and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.

[0431] In the above embodiment, the second downlink data can be sent to the SMF, and additional information for instructing the terminal to perform an operation can be sent to the SMF so that the SMF provides additional information for instructing the terminal to perform an operation to the AMF, and the paging message can be expanded to improve resource utilization efficiency.

[0432] FIG8C is a flow chart of a message sending method according to an embodiment of the present disclosure. As shown in FIG8C , the embodiment of the present disclosure relates to a message sending method, which is executed by a third network element. The method includes:

[0433] Step S8301: Send first downlink data to an access network device, where the first downlink data includes additional information for instructing a terminal to perform an operation.

[0434] Optionally, in one embodiment of the present disclosure, the first downlink data is data exchanged between the UPF, the access network device, and the terminal when the terminal is in the RRC Inactive state. This first downlink data is only used to distinguish the second downlink data and does not specifically refer to fixed data. For example, when the instruction included in the first downlink data changes, the first downlink data may also change accordingly.

[0435] Optionally, in one embodiment of the present disclosure, the terminal radio resource control is in an RRC Inactive state.

[0436] The optional implementation of step S8301 can refer to the optional implementation of step S3301 in Figure 3C and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.

[0437] In the above embodiment, the first downlink data can be sent directly to the access network device, wherein the first downlink data includes instructions for instructing terminal operations, which can provide an instruction transmission mechanism, improve the accuracy of instruction transmission, and improve the accuracy of terminal execution operations.

[0438] FIG9A is a flow chart of a message sending method according to an embodiment of the present disclosure. As shown in FIG9A , the embodiment of the present disclosure relates to a message sending method, which is executed by a core network device. The method includes:

[0439] Step S9101: Send additional information for instructing the terminal to perform an operation to the access network device.

[0440] In one embodiment of the present disclosure, the core network device may include, for example, at least one network element. The core network device of the embodiment of the present disclosure may include, for example, a first network element, a second network element, and a third network element. The first network element may be, for example, an AMF, the second network element may be, for example, an SMF, and the third network element may be, for example, a UPF.

[0441] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0442] Optionally, in one embodiment of the present disclosure, the core network device may send additional information for instructing the terminal to perform an operation to the access network device.

[0443] For example, a third network element UPF in the core network device may send first downlink data to the access network device, wherein the first downlink data includes additional information for instructing the terminal to perform an operation, wherein the terminal is in a radio resource control inactive RRC_Inactive state.

[0444] For example, in one embodiment of the present disclosure, the third network element UPF may send second downlink data to the second network element SMF according to the local policy of the user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation. The second network element SMF may receive the second downlink data sent by the third network element UPF, and send a communication message to the first network element AMF, wherein the communication message includes additional information for instructing the terminal to perform an operation. The first network element AMF receives the communication message sent by the second network element SMF so that the first network element AMF can receive additional information for instructing the terminal to perform an operation. The first network element AMF may send a first paging message to the access network device, wherein the first paging message includes additional information for instructing the terminal to perform an operation. The terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0445] Optionally, in one embodiment of the present disclosure, the AMF may extend the second paging message according to the communication message to generate a first paging message, wherein the first paging message includes additional information for indicating terminal operation.

[0446] Optionally, in one embodiment of the present disclosure, the second paging message may, for example, refer to a message that has not been expanded. The first paging message refers to a message obtained by expanding the second paging message. The first in the first paging message is only used to distinguish the second paging message and does not specifically refer to a fixed message.

[0447] Optionally, in one embodiment of the present disclosure, the second paging message may be extended by, for example, adding non-paging information to the second paging message.

[0448] Optionally, in one embodiment of the present disclosure, the AMF determines whether to extend the second paging message according to at least one of the following information:

[0449] The terminal's contract information;

[0450] Local policy information of the access and mobility management function (AMF);

[0451] capability information of the terminal supporting the first paging message;

[0452] AMF supports message extension capability information.

[0453] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on the subscription information of the terminal, for example.

[0454] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on local policy information of the access and mobility management function AMF, for example.

[0455] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on the capability information of the terminal supporting the first paging message, for example.

[0456] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on capability information of the AMF supporting message extension, for example.

[0457] Optionally, in one embodiment of the present disclosure, the AMF may determine whether to extend the second paging message based on all of the following information:

[0458] The terminal's contract information;

[0459] Local policy information of the access and mobility management function (AMF);

[0460] capability information of the terminal supporting the first paging message;

[0461] AMF supports message extension capability information.

[0462] Optionally, in some embodiments of the present disclosure, the AMF may, for example, send a contract information request to a unified data management function (UDM). The UDM may send contract information in response to the contract information request to the AMF. The contract information of the terminal may, for example, be stored in the UDM.

[0463] Among them, in some embodiments of the present disclosure, the capability information of AMF supporting message extension can be used to indicate whether AMF supports the extension of paging messages, for example.

[0464] Optionally, in one embodiment of the present disclosure, the communication message may be, for example, a Namf_Communication_N1N2 message, wherein the communication message includes additional information for instructing the terminal to perform an operation, and the additional information may be, for example, information for instructing the terminal to perform a non-paging operation.

[0465] The optional implementation of step S9101 can refer to the optional implementation of step S3101 in Figure 3A and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.

[0466] In the above embodiment, additional information for instructing the terminal to perform an operation can be sent to the access network device, so that the access network device can send additional information for instructing the terminal to perform an operation to the terminal, providing a transmission mechanism for additional information, reducing the situation where the additional information cannot be transmitted due to unclear transmission mechanism of additional information, and can increase the probability of successful information transmission and improve message transmission efficiency.

[0467] Figure 9B is a flow chart of a message sending method according to an embodiment of the present disclosure. In one embodiment of the present disclosure, the message receiving method shown in Figure 9B and the message receiving method shown in Figure 9C are both further operation processes of the message receiving method described in Figure 9A. In another embodiment, the message receiving method shown in Figure 9B and the message receiving method shown in Figure 9C are parallel operation processes. For example, the embodiment shown in Figure 9C can be executed separately from the embodiment shown in Figure 9B. The difference between the message receiving method shown in Figure 9C and the message receiving method shown in Figure 9B can be, for example, determining the sending method of the additional information based on the terminal status and the establishment information of the connection between the terminal and the access network device.

[0468] As shown in FIG9B , the embodiment of the present disclosure relates to a message sending method, which is executed by a core network device. The method includes:

[0469] Step S9201: Send a first paging message to an access network device, wherein the first paging message includes additional information for indicating terminal operations.

[0470] For example, in one embodiment of the present disclosure, the execution subject of the embodiment of the present disclosure is a core network device. The core network device may specifically include AMF, SMF and UPF.

[0471] Optionally, in one embodiment of the present disclosure, the additional information may be information other than paging information. The additional information may be, for example, a multi-bit instruction. The multi-bit instruction may be, for example, an instruction for an ambient IoT device. For example, when the number of bits corresponding to the instruction changes, the additional information may also change accordingly.

[0472] For example, in one embodiment of the present disclosure, the terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

[0473] The optional implementation of step S9101 can refer to the optional implementation of steps S3201 to S3206 in Figure 3B and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.

[0474] In the above embodiment, the expanded first paging message can be sent to the access network device, providing an expansion mechanism for the paging message, which can reduce message transmission steps, save message transmission resources and improve message transmission efficiency.

[0475] FIG9C is a flow chart of a message sending method according to an embodiment of the present disclosure. As shown in FIG9C , the embodiment of the present disclosure relates to a message sending method, which is executed by a core network device. The method includes:

[0476] Step S9301: Send first downlink data to an access network device, where the first downlink data includes additional information for instructing a terminal to perform an operation.

[0477] Optionally, in one embodiment of the present disclosure, the first downlink data is data exchanged between the UPF, the access network device, and the terminal when the terminal is in the RRC Inactive state. This first downlink data is only used to distinguish the second downlink data and does not specifically refer to fixed data. For example, when the instruction included in the first downlink data changes, the first downlink data may also change accordingly.

[0478] Optionally, in one embodiment of the present disclosure, the first downlink data may include, for example, an "open instruction." The access network device may receive the first downlink data sent by the core network device and send the first downlink data to the terminal. Upon receiving the first downlink data sent by the access network device, the terminal may perform an open operation.

[0479] The optional implementation of step S9301 can refer to the optional implementation of step S3301 in Figure 3C and other related parts of the embodiment involved in Figure 3B, which will not be repeated here.

[0480] In the above embodiment, the first downlink data can be sent directly to the access network device, wherein the first downlink data includes instructions for instructing terminal operations, which can provide an instruction transmission mechanism, improve the accuracy of instruction transmission, and improve the accuracy of terminal execution operations.

[0481] FIG10A is a flow chart of a message receiving method according to an embodiment of the present disclosure. As shown in FIG10A , the embodiment of the present disclosure relates to a message receiving method, the method comprising:

[0482] In step S10101, when the ambient IoT device is in the Radio Resource Control (RRC)_Inactive state, the NG-RAN may receive downlink data, including instructions from the ambient IoT device, from a user plane function (UPF), for example.

[0483] In step S10102, when the ambient IoT device is in the RRC_IDLE state, the user plane function (UPF) may, for example, send downlink data to the session management function (SMF) based on a local policy when receiving downlink data.

[0484] In step S10103, the SMF may, for example, send an instruction including the transmission of a Network Access and Mobility Management Function (Namf)_Communication_N1N2 message to the Access and Mobility Management Function (AMF).

[0485] In step S10104, the AMF may determine whether to extend the paging message to include instructions for the ambient IoT device based on the terminal's subscription and / or local policy, and whether the capability of the paging message including instructions is supported.

[0486] In step S10105, the AMF may, for example, send a CN paging message including instructions to the NG-Radio Access Network (R)AN.

[0487] In step S10106, the NG-RAN may, for example, send a paging message including instructions to the ambient IoT device.

[0488] In step S10107, the environmental IoT device may, for example, perform an expected operation based on an instruction in a paging message from the NG-RAN.

[0489] The communication method involved in the embodiments of the present disclosure may include at least one of steps S10101 to S10107. For example, step S10101 may be implemented as an independent embodiment, step S10102 may be implemented as an independent embodiment, and step S10102 and step S10107 may be implemented as independent embodiments, but are not limited thereto.

[0490] In some embodiments, step S10101 and step S10102 may be executed in an interchanged order or simultaneously.

[0491] In some embodiments, steps S10102 to S10107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0492] In some embodiments, steps S10103 to S10107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0493] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0494] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0495] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the remaining part by the form of hardware circuits.

[0496] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0497] Figure 11A is a schematic diagram of the structure of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 11A, the terminal 11100 may include: a transceiver module 11101 and a processing module 11102. In some embodiments, the transceiver module is used to receive additional information sent by the access network device to instruct the terminal to perform an operation; the processing module is used to perform an operation corresponding to the additional information. Optionally, the processing module 11101 is used to perform at least one of the communication steps such as sending and / or receiving (for example, step 3209, step 3304, but not limited to this) performed by the terminal 101 in any of the above methods, which will not be repeated here.

[0498] FIG11B is a schematic diagram of the structure of an access network device according to an embodiment of the present disclosure. As shown in FIG11B , the access network device 11200 may include a transceiver module 11201 , wherein the transceiver module is configured to send additional information indicating terminal operation to the terminal.

[0499] Figure 11C is a schematic diagram of the structure of the access and mobility management function (AMF) proposed in an embodiment of the present disclosure. As shown in Figure 11C, the access and mobility management function (AMF) 11300 may include a transceiver module 11301 configured to send a first paging message to an access network device, wherein the first paging message includes additional information indicating terminal operation.

[0500] Figure 11D is a schematic diagram of the structure of a session management function (SMF) according to an embodiment of the present disclosure. As shown in Figure 11D , the session management function (SMF) 11400 may include: a transceiver module 11401 configured to receive second downlink data sent by a user plane function (UPF), wherein the second downlink data includes additional information for instructing a terminal to perform an operation; and a transceiver module configured to send a communication message to an access and mobility management function (AMF), wherein the communication message includes the additional information.

[0501] Figure 11E is a schematic diagram of the structure of the user plane function UPF proposed in an embodiment of the present disclosure. As shown in Figure 11E, the user plane function UPF 9500 may include: a transceiver module 9501, which is used to send additional information for instructing the terminal to perform an operation to the access network device.

[0502] FIG11F is a schematic diagram of the structure of a core network device according to an embodiment of the present disclosure. As shown in FIG11F , the core network device 11600 may include a transceiver module 11601 configured to send additional information for instructing a terminal to perform an operation to an access network device.

[0503] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0504] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0505] Figure 12A is a schematic diagram of the structure of a communication device 12100 proposed in an embodiment of the present disclosure. Communication device 12100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 12100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0506] As shown in Figure 12A, the communication device 12100 includes one or more processors 12101. Processor 12101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 12100 is used to perform any of the above methods.

[0507] In some embodiments, the communication device 12100 further includes one or more memories 12102 for storing instructions. Optionally, all or part of the memory 12102 may be located outside the communication device 12100.

[0508] In some embodiments, the communication device 12100 further includes one or more transceivers 12103. When the communication device 12100 includes one or more transceivers 12103, the transceiver 12103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S3101, step 3102, step 3103, step 3104, step 3105, step S3201, step 3202, step 3203, step 3204, step 3206, step 3207, step 3208, step 3209, step 3301, step 3302, step 3303, step 3304, but not limited thereto), and the processor 12101 performs at least one of the other steps (for example, step 3205, step 3210, but not limited thereto).

[0509] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0510] In some embodiments, the communication device 12100 may include one or more interface circuits 12104. Optionally, the interface circuit 12104 is connected to the memory 12102. The interface circuit 12104 may be configured to receive signals from the memory 12102 or other devices, or to send signals to the memory 12102 or other devices. For example, the interface circuit 12104 may read instructions stored in the memory 12102 and send the instructions to the processor 12101.

[0511] The communication device 12100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 12100 described in the present disclosure is not limited thereto, and the structure of the communication device 12100 may not be limited by FIG. 12A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0512] 12B is a schematic diagram of the structure of a chip 12200 according to an embodiment of the present disclosure. If the communication device 12100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 12200 shown in FIG12B , but the present disclosure is not limited thereto.

[0513] Chip 12200 includes one or more processors 12201, and chip 12200 is used to execute any of the above methods.

[0514] In some embodiments, chip 12200 further includes one or more interface circuits 12202. Optionally, interface circuit 12202 is connected to memory 12203. Interface circuit 12202 can be used to receive signals from memory 12203 or other devices, or to send signals to memory 12203 or other devices. For example, interface circuit 12202 can read instructions stored in memory 12203 and send the instructions to processor 12201.

[0515] In some embodiments, the interface circuit 12202 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step S3101, step 3102, step 3103, step 3104, step 3105, step S3201, step 3202, step 3203, step 3204, step 3206, step 3207, step 3208, step 3209, step 3301, step 3302, step 3303, step 3304, but not limited to these), and the processor 12201 executes at least one of the other steps (for example, step 3205, step 3210, but not limited to these).

[0516] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0517] In some embodiments, the chip 10200 further includes one or more memories 10203 for storing instructions. Alternatively, all or part of the memories 10203 may be outside the chip 10200.

[0518] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the communication device 10100, the communication device 10100 is caused to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0519] The present disclosure also provides a program product, which, when executed by the communication device 10100, enables the communication device 10100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0520] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A message receiving method, characterized in that: The method is executed by a terminal, and includes: Receiving additional information sent by the access network device for instructing the terminal to perform an operation; An operation corresponding to the additional information is performed.

2. The method according to claim 1, characterized in that The receiving of additional information sent by the access network device and used to instruct the terminal to perform an operation includes: A first paging message sent by an access network device is received, wherein the first paging message includes the additional information used to instruct the terminal to perform an operation.

3. The method according to claim 2, characterized in that in, The terminal is in at least one of a radio resource control idle RRC IDLE state and a radio resource control inactive RRC_Inactive state.

4. The method according to claim 1, characterized in that The receiving of additional information sent by the access network device and used to instruct the terminal to perform an operation includes: Receive first downlink data sent by the access network device, wherein the first downlink data includes the additional information used to instruct the terminal to perform an operation.

5. The method according to claim 4, characterized in that in, The terminal is in a radio resource control inactive RRC_Inactive state.

6. A message sending method, characterized in that: The method is performed by an access network device, and the method further includes: Additional information for instructing the terminal to perform an operation is sent to the terminal.

7. The method according to claim 6, characterized in that The sending of additional information for instructing the terminal to perform an operation to the terminal includes: Receiving a first paging message sent by an access and mobility management function AMF, wherein the first paging message includes the additional information for indicating the terminal operation; Sending the first paging message to the terminal.

8. The method according to claim 6, characterized in that The sending of additional information for instructing the terminal to perform an operation to the terminal includes: Receiving first downlink data sent by a user plane function UPF, wherein the first downlink data includes the additional information for instructing the terminal to perform an operation; The first downlink data is sent to the terminal.

9. A message sending method, characterized in that: The method is performed by an access and mobility management function AMF, and the method includes: A first paging message is sent to an access network device, wherein the first paging message includes additional information for indicating terminal operation.

10. The method according to claim 9, characterized in that The method further comprises: Receiving a communication message sent by a session management function SMF, wherein the communication message includes the additional information; The second paging message is extended according to the communication message to generate the first paging message.

11. The method according to claim 10, characterized in that The method further comprises: Determine whether to extend the second paging message according to at least one of the following information: The contract information of the terminal; Local policy information of the access and mobility management function AMF; Capability information of the terminal supporting the first paging message; The AMF supports message extension capability information.

12. A message sending method, characterized in that: The method is performed by a session management function SMF, and the method comprises: Receiving second downlink data sent by a user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation; Send a communication message to an access and mobility management function AMF, wherein the communication message includes the additional information.

13. A message sending method, characterized in that: The method is performed by a user plane function UPF, and the method includes: Send additional information to the access network device for instructing the terminal to perform an operation.

14. The method according to claim 13, characterized in that The sending of additional information for instructing the terminal to perform an operation to the access network device includes: According to the local policy of the user plane function UPF, the second downlink data is sent to the session management function SMF, wherein the second downlink data includes the additional information for instructing the terminal to perform the operation, and the second downlink data is used to instruct the SMF to send a notification message to the AMF, and the AMF sends the additional information for instructing the terminal to perform the operation to the access network device.

15. The method according to claim 13, characterized in that The sending of additional information for instructing the terminal to perform an operation to the access network device includes: Sending first downlink data to an access network device, wherein the first downlink data includes the additional information for instructing the terminal to perform an operation.

16. A message sending method, characterized in that: The method is performed by a core network device, and the method includes: Send additional information to the access network device for instructing the terminal to perform an operation.

17. The method according to claim 16, characterized in that The sending of additional information for instructing the terminal to perform an operation to the access network device includes: A first paging message is sent to the access network device, wherein the first paging message includes the additional information for indicating the terminal operation.

18. The method according to claim 16, characterized in that The method further comprises: Sending first downlink data to an access network device, wherein the first downlink data includes the additional information for instructing the terminal to perform an operation.

19. A terminal, characterized in that: The device comprises: A transceiver module, used to receive additional information sent by an access network device to instruct the terminal to perform an operation; A processing module is used to execute an operation corresponding to the additional information.

20. An access network device, characterized in that: The device comprises: The transceiver module is used to send additional information for indicating terminal operation to the terminal.

21. An access and mobility management function AMF, characterized in that The device comprises: The transceiver module is used to send a first paging message to the access network device, wherein the first paging message includes additional information for indicating terminal operation.

22. A session management function SMF, characterized in that: The device comprises: A transceiver module, configured to receive second downlink data sent by a user plane function UPF, wherein the second downlink data includes additional information for instructing the terminal to perform an operation; The transceiver module is also used to send a communication message to the access and mobility management function AMF, wherein the communication message includes the additional information.

23. A user plane function UPF, characterized in that: The device comprises: The transceiver module is used to send additional information for instructing the terminal to perform an operation to the access network device.

24. A core network device, characterized in that: The device comprises: The transceiver module is used to send additional information for instructing the terminal to perform an operation to the access network device.

25. A terminal, characterized in that: include: one or more processors; The terminal is used to execute the message receiving method according to any one of claims 1 to 5.

26. An access network device, characterized in that: include: one or more processors; Wherein, the access network device is used to execute the message sending method described in claims 6 to 8.

27. A first network element, characterized in that: include: one or more processors; Wherein, the first network element is used to execute the message sending method described in claims 9 to 11.

28. A second network element, characterized in that: include: one or more processors; Wherein, the second network element is used to execute the message sending method described in claim 12.

29. A third network element, characterized in that: include: one or more processors; The third network element is used to execute the message sending method described in claims 13 to 15.

30. A core network device, characterized in that: include: one or more processors; Wherein, the core network device is used to execute the message sending method described in claims 16 to 18.

31. A communication system, characterized in that: It includes a terminal, an access network device and a core network device, wherein the terminal is configured to implement the message receiving method described in any one of claims 1 to 5, the access network device is configured to implement the message sending method described in claims 6 to 8, and the core network device is configured to implement the message sending method described in claims 9 to 18.

32. A storage medium storing instructions, characterized in that: When the instructions are executed on a communication device, the communication device is caused to execute the method as claimed in any one of claims 1 to 5 or 6 to 8 or 9 to 11 or 12 or 13 to 15 or 16 to 18.

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