Communication method, network device, first server, communication system and storage medium

Abstract

The embodiment of the invention provides a communication method, first network equipment, second network equipment, a first server, a communication system and a storage medium. The method comprises the following steps: sending first information to second network equipment; wherein the first information is used for indicating that a network based on satellite communication runs in a storage and forwarding Samp; and F mode. The technical scheme provided by the embodiment of the invention can be adapted to a communication architecture which introduces a wireless access point and a core network function and is deployed on a satellite.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, a first network device, a second network device, a first server, a communication system, and a storage medium. Background Art

[0002] In the field of communications technology, a communications architecture has been introduced in which wireless access points and core network functions are deployed on satellites. This architecture requires support for data store and forward (S&F) functionality to enable delay-tolerant services in the presence of discontinuous satellite network connections. Summary of the Invention

[0003] After introducing the communication architecture where wireless access points and core network functions are deployed on satellites, the communication mechanism needs to be adjusted.

[0004] Embodiments of the present disclosure provide a communication method, a first network device, a second network device, a first server, a communication system, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, where the method is performed by a first network device, and the method includes:

[0006] Sending the first information to the second network device;

[0007] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0008] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, where the method is performed by a second network device, and the method includes:

[0009] receiving first information sent by a first network device;

[0010] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0011] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, where the method is performed by a first server and includes:

[0012] receiving first information sent by a second network device;

[0013] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0014] According to a fourth aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising:

[0015] The first network device sends first information to the second network device;

[0016] The second network device sends the first information to the first server;

[0017] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0018] According to a fifth aspect of an embodiment of the present disclosure, a first network device is provided, the first network device including:

[0019] The transceiver module is configured as follows:

[0020] Sending the first information to the second network device;

[0021] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0022] According to a sixth aspect of an embodiment of the present disclosure, a second network device is provided, the second network device including:

[0023] The transceiver module is configured as follows:

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

[0025] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0026] According to a seventh aspect of an embodiment of the present disclosure, a first server is provided, the first server including:

[0027] The transceiver module is configured as follows:

[0028] receiving first information sent by a second network device;

[0029] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0030] According to an eighth aspect of an embodiment of the present disclosure, a communication system is provided, wherein the communication system includes a first network device, a second network device and a first server; the first network device is configured to implement the method described in the first aspect, and the second network device is configured to implement the method described in the second aspect; the first server is configured to implement the method described in the third aspect.

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

[0032] one or more processors;

[0033] The first network device is used to execute the method described in the first aspect.

[0034] According to a tenth aspect of an embodiment of the present disclosure, a second network device is provided, the second network device including:

[0035] one or more processors;

[0036] The second network device is used to execute the method described in the second aspect.

[0037] According to an eleventh aspect of an embodiment of the present disclosure, a first server is provided, the first server including:

[0038] one or more processors;

[0039] Wherein, the first server is used to execute the method described in the third aspect.

[0040] According to the twelfth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the method provided by the first aspect, the second aspect and / or the third aspect.

[0041] The technical solution provided by the embodiments of the present disclosure can be adapted to a communication architecture that introduces wireless access points and core network functions deployed on satellites.

[0042] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0044] Figure 1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0045] Figure 1b is a schematic diagram of a communication system according to an exemplary embodiment;

[0046] Figure 1c is a schematic diagram of a communication system according to an exemplary embodiment;

[0047] Figure 1d is a flow chart showing a communication method according to an exemplary embodiment;

[0048] Figure 2ais a flow chart showing a communication method according to an exemplary embodiment;

[0049] Figure 3a is a flow chart showing a communication method according to an exemplary embodiment;

[0050] Figure 4a is a flow chart showing a communication method according to an exemplary embodiment;

[0051] Figure 4b is a flow chart showing a communication method according to an exemplary embodiment;

[0052] Figure 5a is a flow chart showing a communication method according to an exemplary embodiment;

[0053] Figure 5b is a flow chart showing a communication method according to an exemplary embodiment;

[0054] Figure 6a is a schematic diagram of a communication system according to an exemplary embodiment;

[0055] Figure 7a is a flow chart showing a communication method according to an exemplary embodiment;

[0056] Figure 7b is a flow chart showing a communication method according to an exemplary embodiment;

[0057] Figure 8a is a schematic structural diagram of a first network device according to an exemplary embodiment;

[0058] Figure 8b is a schematic structural diagram of a second network device according to an exemplary embodiment;

[0059] Figure 8c is a schematic structural diagram of a first server according to an exemplary embodiment;

[0060] Figure 9a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0061] Figure 9b The figure is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0062] The embodiments of the present disclosure provide a communication method, a first network device, a second network device, a first server, a communication system, and a storage medium.

[0063] In a first aspect, an embodiment of the present disclosure provides a communication method, the method being performed by a first network device, the method comprising:

[0064] Sending the first information to the second network device;

[0065] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0066] In the above embodiment, since the first network device sends the first information indicating that the satellite communication-based network operates in the storage and forwarding S&F mode to the second network device, the second network device can determine that the satellite communication-based network operates in the storage and forwarding S&F mode after receiving the first information, thereby enabling the behavior of the second network device to adapt to the communication scenario of the storage and forwarding S&F mode.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is further used to indicate at least one of the following:

[0068] A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation;

[0069] a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable;

[0070] A first priority level is a priority level for transmitting data after the satellite network connection is restored.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the satellite network connection includes at least one of the following:

[0072] feeder links;

[0073] Service link.

[0074] In the above embodiment, data may be transmitted after the feeder link and / or the service link is restored based on the first priority.

[0075] In combination with some embodiments of the first aspect, in some embodiments, the first time delay is determined based on ephemeris information and / or user location information.

[0076] In the above embodiment, the first time delay may be accurately determined based on ephemeris information and / or user location information.

[0077] In combination with some embodiments of the first aspect, in some embodiments, the first delay is determined based on the unavailability duration of the feeder link and / or the unavailability duration of the service link.

[0078] In the above embodiment, the first delay may be accurately determined based on the unavailable duration of the feeder link and / or the unavailable duration of the service link.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the second network device includes:

[0080] During the monitoring event notification process, sending a monitoring event notification message to the second network device;

[0081] The monitoring event notification message includes the first information.

[0082] In the above embodiment, during the monitoring event notification process, the monitoring event notification message can be reused to send the first information to the second network device, thereby saving signaling overhead and improving resource utilization.

[0083] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the second network device includes:

[0084] Determine that the second network device subscribes to a first event from the first network device, and send the first information to the second network device;

[0085] The first event is triggering the first network device to send notification information to the second network device when using satellite network access.

[0086] In the above embodiment, the first information may be sent to the second network device in a timely manner when the second network device subscribes to the first event from the first network device.

[0087] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the second network device includes at least one of the following:

[0088] Determining that the first network device serving the terminal is deployed on the satellite, and sending the first information to the second network device;

[0089] It is determined that a third network device serving the terminal is deployed on the satellite and supports S&F operations, and the first information is sent to the second network device.

[0090] In the above embodiment, when the first network device serving the terminal is deployed on the satellite, the first information can be sent to the second network device in a timely manner; and / or, when the third network device serving the terminal is deployed on the satellite and supports S&F operations, the first information can be sent to the second network device in a timely manner.

[0091] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information to the second network device includes:

[0092] determining that the first network device detects a second event, the terminal accesses a satellite communication-based network supporting an S&F operation, and the second event is caused by the S&F operation, and sending the first information to the second network device;

[0093] The second event is an event caused by connection loss.

[0094] In the above embodiment, when the first network device detects the second event, the terminal accesses a satellite communication-based network supporting S&F operations, and the second event is caused by the S&F operation, the first information can be sent to the second network device in a timely manner.

[0095] In combination with some embodiments of the first aspect, in some embodiments, the first information is further used to indicate connection loss and / or a cause of connection loss, where the cause is that the connection loss is caused by an S&F operation.

[0096] In combination with some embodiments of the first aspect, in some embodiments, the first information is used to assist the first server in determining a first behavior, where the first behavior is an behavior of performing business communication.

[0097] In the above embodiment, since the first information can assist the first server in determining the first behavior, the first behavior can be adapted to the first information.

[0098] In conjunction with some embodiments of the first aspect, in some embodiments, the first behavior includes at least one of the following:

[0099] determining to conduct service communication based on the first information when the network operates in the S&F mode;

[0100] determining not to conduct service communications based on the first information when the network operates in the S&F mode;

[0101] determining a time to send downlink data based on the first information;

[0102] Determining to subscribe to a third event based on the first information;

[0103] Determine not to subscribe to a third event based on the first information.

[0104] In conjunction with some embodiments of the first aspect, in some embodiments, the third event is an event caused by at least one of the following:

[0105] Accessibility of terminals;

[0106] The location of the terminal;

[0107] Change of location of the terminal;

[0108] Lost connection;

[0109] Communication failure.

[0110] In combination with some embodiments of the first aspect, in some embodiments, the first server is a service capability server SCS and / or an application server AS.

[0111] In combination with some embodiments of the first aspect, in some embodiments, the first network device is one of the following: a mobility management entity MME; a home subscriber server HSS; a policy and charging rules function PCRF; and the second network device is a service capability exposure function SCEF.

[0112] In a second aspect, an embodiment of the present disclosure provides a communication method, the method being performed by a second network device, the method comprising:

[0113] receiving first information sent by a first network device;

[0114] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0115] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is further used to indicate at least one of the following:

[0116] A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation;

[0117] a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable;

[0118] A first priority level is a priority level for transmitting data after the satellite network connection is restored.

[0119] In conjunction with some embodiments of the second aspect, in some embodiments, the satellite network connection includes at least one of the following:

[0120] feeder links;

[0121] Service link.

[0122] In combination with some embodiments of the second aspect, in some embodiments, the first time delay is determined based on ephemeris information and / or user location information.

[0123] In combination with some embodiments of the second aspect, in some embodiments, the first delay is determined based on the unavailability duration of the feeder link and / or the unavailability duration of the service link.

[0124] In conjunction with some embodiments of the second aspect, in some embodiments, receiving the first information sent by the first network device includes:

[0125] During the monitoring event notification process, receiving a monitoring event notification message sent by the first network device;

[0126] The monitoring event notification message includes the first information.

[0127] In combination with some embodiments of the second aspect, in some embodiments, the first information is further used to indicate connection loss and / or a cause of connection loss, where the cause is that the connection loss is caused by an S&F operation.

[0128] In combination with some embodiments of the second aspect, in some embodiments, the first information is used to assist the first server in determining a first behavior, where the first behavior is an behavior of performing business communication.

[0129] In conjunction with some embodiments of the second aspect, in some embodiments, the first behavior includes at least one of the following:

[0130] determining to conduct service communication based on the first information when the network operates in the S&F mode;

[0131] determining not to conduct service communications based on the first information when the network operates in the S&F mode;

[0132] determining a time to send downlink data based on the first information;

[0133] Determining to subscribe to a third event based on the first information;

[0134] Determine not to subscribe to a third event based on the first information.

[0135] In conjunction with some embodiments of the second aspect, in some embodiments, the third event is an event caused by at least one of the following:

[0136] Accessibility of terminals;

[0137] The location of the terminal;

[0138] Change of location of the terminal;

[0139] Lost connection;

[0140] Communication failure.

[0141] In combination with some embodiments of the second aspect, in some embodiments, the first network device is one of the following: a mobility management entity MME; a home subscriber server HSS; a policy and charging rules function PCRF; and the second network device is a service capability exposure function SCEF.

[0142] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0143] The first information is sent to a first server.

[0144] In combination with some embodiments of the second aspect, in some embodiments, the first server is a service capability server SCS and / or an application server AS.

[0145] In a third aspect, an embodiment of the present disclosure provides a communication method, which is executed by a first server and includes:

[0146] receiving first information sent by a second network device;

[0147] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0148] In conjunction with some embodiments of the third aspect, the first information is further used to indicate at least one of the following:

[0149] A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation;

[0150] a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable;

[0151] A first priority level is a priority level for transmitting data after the satellite network connection is restored.

[0152] In conjunction with some embodiments of the third aspect, the satellite network connection includes at least one of the following:

[0153] feeder links;

[0154] Service link.

[0155] In combination with some embodiments of the third aspect, the first time delay is determined based on ephemeris information and / or user location information.

[0156] In combination with some embodiments of the third aspect, the first delay is determined based on the unavailability duration of the feeder link and / or the unavailability duration of the service link.

[0157] In conjunction with some embodiments of the third aspect, the method further includes:

[0158] determining a first action based on the first information;

[0159] The first behavior is an behavior of executing business communication.

[0160] In conjunction with some embodiments of the third aspect, the first behavior includes at least one of the following:

[0161] determining to conduct service communication based on the first information when the network operates in the S&F mode;

[0162] determining not to conduct service communications based on the first information when the network operates in the S&F mode;

[0163] determining a time to send downlink data based on the first information;

[0164] Determining to subscribe to a third event based on the first information;

[0165] Determine not to subscribe to a third event based on the first information.

[0166] In conjunction with some embodiments of the third aspect, the third event is an event caused by at least one of the following:

[0167] Accessibility of terminals;

[0168] The location of the terminal;

[0169] Change of location of the terminal;

[0170] Lost connection;

[0171] Communication failure.

[0172] In combination with some embodiments of the third aspect, the first server is a service capability server SCS and / or an application server AS; a policy and charging rules function PCRF; and the second network device is a service capability exposure function SCEF.

[0173] In a fourth aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0174] The first network device sends first information to the second network device;

[0175] The second network device sends the first information to the first server;

[0176] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0177] In a fifth aspect, an embodiment of the present disclosure provides a first network device, the first network device including:

[0178] The transceiver module is configured as follows:

[0179] Sending the first information to the second network device;

[0180] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0181] In a sixth aspect, an embodiment of the present disclosure provides a second network device, the second network device including:

[0182] The transceiver module is configured as follows:

[0183] receiving first information sent by a first network device;

[0184] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0185] In a seventh aspect, an embodiment of the present disclosure provides a first server, the first server comprising:

[0186] The transceiver module is configured as follows:

[0187] receiving first information sent by a second network device;

[0188] The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0189] In an eighth aspect, an embodiment of the present disclosure provides a communication system, comprising a first network device, a second network device, and a first server; the first network device is configured to implement the method described in the first aspect, the second network device is configured to implement the method described in the second aspect, and the first server is configured to implement the method described in the third aspect.

[0190] In a ninth aspect, an embodiment of the present disclosure provides a first network device, the first network device including:

[0191] one or more processors;

[0192] The first network device is used to execute the method described in the first aspect.

[0193] In a tenth aspect, an embodiment of the present disclosure provides a second network device, the second network device including:

[0194] one or more processors;

[0195] The second network device is used to execute the method described in the second aspect.

[0196] In an eleventh aspect, an embodiment of the present disclosure provides a first server, the first server comprising:

[0197] one or more processors;

[0198] Wherein, the first server is used to execute the method described in the third aspect.

[0199] In the twelfth aspect, an embodiment of the present disclosure provides a storage medium storing instructions, which, when the instructions are executed on a communication device, enables the communication device to execute the method described in the optional implementation of the first aspect, the second aspect and / or the third aspect.

[0200] In a thirteenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first aspect, the second aspect and / or the third aspect.

[0201] In a fourteenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect, the second aspect and / or the third aspect.

[0202] In a fifteenth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first aspect, the second aspect, and / or the third aspect.

[0203] It is understandable that the first network device, the second network device, the first server, the communication system, the storage medium, the program product, the computer program, the chip, or the chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0204] In some embodiments, the terms "communication method" and "information indication method" are interchangeable, and the terms "communication system" and "information processing system" are interchangeable.

[0205] 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.

[0206] 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.

[0207] 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.

[0208] 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.

[0209] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0210] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0211] 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.

[0212] 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.

[0213] 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.

[0214] 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.

[0215] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0216] 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.

[0217] 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.

[0218] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0219] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0220] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / 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)" and the like may be used interchangeably.

[0221] In some embodiments, the terms "terminal", "terminal device", "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. can be used interchangeably.

[0222] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0223] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0224] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0225] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0226] 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.

[0227] Figure 1a It is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0228] like Figure 1a As shown, the communication system 100 includes a terminal 101 , a network device 102 and a first server 103 .

[0229] In some embodiments, the network device 102 may be an access network device or a core network device.

[0230] In some embodiments, the core network device may be the first network device 1021 or the second network device 1022 .

[0231] 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.

[0232] In some embodiments, the access network device 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 (CloudRAN), 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.

[0233] 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.

[0234] In some embodiments, the access network device can be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), where the CU can also be called a control unit (control unit). The CU-DU structure can be used to split the protocol layer of the access network device, and the functions of some protocol layers are centrally controlled by the CU, while the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited to this.

[0235] In some embodiments, the core network device may be a single device including a first network element, a second network element, etc., or may be a plurality of devices or a group of devices, each including all or part of the first network element, the second network element, 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).

[0236] In some embodiments, the first network element is, for example, a Mobility Management Entity (MME).

[0237] In some embodiments, the first network element is used for signaling processing, and the name is not limited thereto.

[0238] In some embodiments, the second network element is, for example, a Home Subscriber Server (HSS).

[0239] In some embodiments, the second network element is used to store subscriber information, and the name is not limited thereto.

[0240] In some embodiments, the third network element is, for example, a Policy and Charging Rules Function (PCRF).

[0241] In some embodiments, the third network element is used for policy provision and billing, and the name is not limited thereto.

[0242] In some embodiments, the first network element, the second network element and / or the third network element may be independent of the core network device.

[0243] In some embodiments, the first network element, the second network element and / or the third network element may be part of a core network device.

[0244] 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.

[0245] The following embodiments of the present disclosure can be applied to Figure 1a The communication system 100, or a portion thereof, is shown but is not limited thereto. Figure 1a The various entities shown are examples, and the communication system may include Figure 1a All or part of the subject, and may also include Figure 1a The number and form of other subjects are arbitrary, each subject can be physical or virtual, the connection relationship between the subjects is illustrative, the subjects can be connected or disconnected, and the connection can be in any way, which can be direct or indirect, wired or wireless.

[0246] 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).

[0247] In some embodiments, see Figure 1b ,Satellite access can provide network services in regenerative mode, which means that radio access nodes and part or all core network functions can be deployed on the satellite. Figure 1b A complete base station and part of a Mobility Management Entity (MME) on a satellite are shown.

[0248] In some embodiments, due to a shortage of satellites, the connection between the satellite and the terminal or ground network equipment may be intermittent, that is, the service link and the feeder link are not available simultaneously for the terminal to access the network. In this case, the network uses the store and forward feature to support the development of delay-tolerant services.

[0249] In some embodiments, see Figure 1c , shows the process of performing store and forward:

[0250] In some embodiments, the end-to-end exchange of signaling or data traffic is divided into two processes (eg Figure 1c Step A and Step B).

[0251] In some embodiments, in step A, there is a connection between the terminal and the satellite, and signaling or data exchange is performed between the terminal and the satellite, while the satellite and the terrestrial network are not connected. In this step, the satellite can store data or signaling received from the terminal.

[0252] In some embodiments, the satellite moves from being connected to the terminal in step A to being able to establish a connection with the terrestrial network in step B but not being able to establish a connection with the terminal.

[0253] In some embodiments, in step B, a connection is established between the satellite and the terrestrial network, enabling communication between the satellite and the terrestrial network. The satellite may forward the data or signaling stored in step A to the ground station. Simultaneously, it may store data received from the ground station and sent to the terminal.

[0254] In some embodiments, the store and forward operation in a 4G or 5G system with satellite access is intended to provide a certain level of communication service to terminals accessing the system for delay-tolerant communication traffic.

[0255] In some embodiments, the monitoring event is intended to monitor specific events in the 3GPP network system and make the monitoring event information available to a third-party system via a Service Capability Exposure Function (SCEF).

[0256] In some embodiments, support for monitoring events may be provided by a Home Subscriber Server (HSS), a Mobility Management Entity (MME), or a Policy and Charging Rules Function (PCRF).

[0257] For example, monitoring events by the HSS enables the SCEF to configure a given monitoring event at the HSS or MME and have the HSS or MME report the event. When the MME or HSS monitors the event, the SCEF opens it to third-party systems for perception.

[0258] In some embodiments, see Figure 1d , provides a method for requesting specific monitoring information or event reports, the method comprising:

[0259] Step S1101: Sending a monitoring or subscription request: A service capability server (SCS) or an application server (AS) sends a monitoring or subscription request for a given event to the SCEF.

[0260] In some embodiments, the SCS or AS sends a monitoring request to the SCEF, and the request message includes an identifier external to the UE's 3GPP network or an international mobile user identification code (MSISDN, Mobile Station International Subscriber Directory Number) or an external group identifier, an SCS or AS identifier, a monitoring type, a maximum number of reports, a monitoring duration, an operation instruction to cancel or add monitoring, and other information.

[0261] In some embodiments, if the SCS or AS needs to configure monitoring events for a group of UEs, the SCS or AS may include the external 3GPP group identifier of the user group in the Monitoring Request message. If the external identifier of the group is included in the Monitoring Request message, the external identifier or MSISDN of the UE shall be ignored.

[0262] Step S1102: SCEF performs processing.

[0263] In some embodiments, the SCEF stores the SCS or AS identifier, monitoring duration, maximum reporting times, etc.

[0264] In some embodiments, if the SCS or AS is not authorized to send a monitoring request for the event, or the SCS or AS has exceeded its quota or rate for submitting monitoring requests, the SCEF performs step S1109 and provides a cause value that appropriately indicates the error.

[0265] Step S1103: The SCEF sends a monitoring request to the HSS.

[0266] In some embodiments, the SCEF sends an event monitoring request message to the HSS, which includes an identifier external to the UE's 3GPP network or MSISDN or external group identifier, SCEF ID, monitoring type, maximum number of reports, monitoring duration, indication of canceling or adding event operations, etc., to configure a given monitoring event on the HSS and / or MME.

[0267] Step S1104: HSS performs processing.

[0268] In some embodiments, the HSS checks the monitoring request message, for example, whether the serving MME supports monitoring of the event. If the check fails, the HSS performs step S1108 and provides an indication of the failure reason to the SCEF.

[0269] In some embodiments, the HSS stores the SCEF ID, the maximum number of reporting times, and the monitoring duration. For a group monitoring request, the HSS stores the parameters for each group member UE.

[0270] Step S1104 includes:

[0271] Step S1104a: The HSS sends a monitoring response (reporting event) to the SCEF.

[0272] In some embodiments, if it is event monitoring for a user group, the HSS sends a monitoring response message to the SCEF to immediately return an acknowledgement of the monitoring request before processing the event monitoring for each user in the group.

[0273] Step S1104b: The SCEF sends a monitoring response to the SCS or AS.

[0274] In some embodiments, the SCEF sends a monitoring response message to the SCS or AS to indicate that event monitoring is in progress.

[0275] Step S1105: The HSS sends an insert subscription data request to the MME.

[0276] In some embodiments, for a given monitoring type and the serving MME supports the monitoring, the HSS sends the insert subscription data request (monitoring type, SCEF ID, maximum reporting times, monitoring duration) to the MME for each individual UE or each UE in a user group.

[0277] Step S1106: MME performs processing.

[0278] In some embodiments, the MME stores the received parameters and starts monitoring for the event.

[0279] Step S1107: The MME sends an insert subscription data response to the HSS.

[0280] In some embodiments, if the event monitoring configuration is successful, the MME sends an Insert Subscription Data Answer message to the HSS.

[0281] In some embodiments, if the requested monitoring event has been detected when sending the Insert Subscription Data Answer message, the MME may include a report of the monitoring event in the Insert Subscription Data Answer message.

[0282] Step S1108: The HSS sends a monitoring response or indication to the SCEF.

[0283] In some embodiments, for event monitoring of a single UE, the HSS sends a monitoring response (monitoring event report, cause value) message to the SCEF.

[0284] In some embodiments, if the HSS has detected the monitoring event when sending the monitoring response message or receiving the message from the MME in step S1107, the HSS includes the monitoring event report in the monitoring response message.

[0285] In some embodiments, if event monitoring is for a user group, the HSS accumulates monitoring event reports from each UE in the user group within a specified time. After the specified time, the HSS sends a monitoring indication to include monitoring event reports of all UEs in the user group.

[0286] Step S1109a: The SCEF sends a monitoring response to the SCS or AS.

[0287] In some embodiments, for event monitoring of a single UE, the SCEF sends a monitoring response (monitoring event report, cause value) message to the SCS or AS.

[0288] Step S1109b: The SCEF sends a monitoring response to the SCS or AS.

[0289] In some embodiments, for event monitoring for a user group, the SCEF accumulates monitoring event reports of each UE in the user group within a specified time period, and sends a monitoring indication to the SCS or AS to include monitoring event reports of all UEs in the user group.

[0290] Step S1109c: The SCS or AS sends a monitoring indication response to the SCEF.

[0291] For each monitoring indication message received from step S1109b, the SCS or AS sends a monitoring indication response message to the SCEF, where the message is used to confirm whether the event monitoring is successful.

[0292] In some embodiments, support for monitoring events includes event configuration, event detection, and reporting of events to an authorized third party (e.g., an application server) so that decisions can be made based on the reported events. Configuration and reporting of the following monitoring events can be supported:

[0293] UE reachability;

[0294] The location of the UE, and changes in the location of the UE;

[0295] Lost connection;

[0296] Communication failure.

[0297] In some embodiments, when a UE uses satellite access operating in S&F mode, signaling or data sent by the UE will be stored in the satellite during the period when the feeder link is unavailable, and will be forwarded to the CN or AS once the feeder link becomes available. The same S&F mechanism also applies to downlink signaling or data.

[0298] In some embodiments, if the satellite network supports the store-and-forward (S&F) feature, communication between the UE and the AS continues via the satellite network, but the S&F operation will cause significant time delay. If the AS is unaware of the significant time delay caused by the S&F operation, it may misinterpret the occurrence of other events described above, such as connection loss or UE unreachability, resulting in communication interruption due to such misunderstanding.

[0299] Figure 2a FIG. 1 is an interactive diagram of a communication method according to an embodiment of the present disclosure. Figure 2a As shown, the embodiment of the present disclosure relates to a communication method, which is used in a communication system 100. The method includes:

[0300] Step S2101: The first network device sends first information to the second network device.

[0301] In some embodiments, the second network device receives the first information sent by the first network device.

[0302] In some embodiments, the first network device is one of the following:

[0303] Mobility Management Entity (MME);

[0304] Home Subscriber Server (HSS);

[0305] Policy and Charging Rules Function (PCRF)

[0306] In some embodiments, the second network device is a Service Capability Exposure Function (SCEF).

[0307] In some embodiments, the first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0308] In some embodiments, the first information is event information.

[0309] In some embodiments, the first information is further used to indicate at least one of the following:

[0310] A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation;

[0311] a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable;

[0312] A first priority level is a priority level for transmitting data after the satellite network connection is restored.

[0313] In some embodiments, the first period may be a first time period.

[0314] In some embodiments, the first period may include at least two time periods.

[0315] The satellite network connection includes at least one of the following: a feeder link; and a server link.

[0316] In some embodiments, the feeder link is a transmission link between an access network device accessed by the terminal and a ground station.

[0317] In some embodiments, the ground station may be a processing device on the ground for receiving and transmitting signals from users of access network devices.

[0318] In some embodiments, the service link is a transmission link between the terminal and the access network device.

[0319] In some embodiments, the transmission link is used to transmit business data.

[0320] In some embodiments, the transmission link is used to transmit signaling.

[0321] In some embodiments, the first time delay is determined based on at least one of: ephemeris information; user location information; unavailable time of the feeder link; and unavailable time of the serving link.

[0322] In some embodiments, the first time delay is determined based on ephemeris information.

[0323] In some embodiments, the first time delay is determined based on user location information.

[0324] In some embodiments, the first time delay is determined based on ephemeris information and user location information.

[0325] In some embodiments, the first time delay is determined based on an unavailable time of the feeder link.

[0326] In some embodiments, the first delay is determined based on an unavailable time of a service link.

[0327] In some embodiments, the first delay is determined based on the unavailability time of the feeder link and the unavailability time of the service link.

[0328] In some embodiments, the unavailable time may be an unavailable duration.

[0329] In some embodiments, the ephemeris information includes connection time information and / or interruption time information of the feeder link.

[0330] In some embodiments, the first delay is a data transmission delay.

[0331] In some embodiments, the first data amount is a data storage quota.

[0332] In some embodiments, the first priority is a data forwarding priority or a data transmission priority.

[0333] In some embodiments, during the monitoring event notification process, a monitoring event notification message is sent to the second network device.

[0334] In some embodiments, the monitoring event notification message includes the first information.

[0335] In some embodiments, the first network device determines that the second network device subscribes to a first event from the first network device, and the first network device sends the first information to the second network device.

[0336] In some embodiments, after the second network device subscribes to the first event from the first network device, the first network device sends the first information to the second network device.

[0337] In some embodiments, the second network device may subscribe to the first event from the first network device after receiving a subscription request for the first time from a service capability server (SCS) or an application server (AS).

[0338] In some embodiments, the first event triggers the first network device to send notification information to the second network device when using satellite network access.

[0339] In some embodiments, the first event triggers the first network device to send notification information to the second network device when the terminal uses satellite network access.

[0340] In some embodiments, the first network device determines that the first network device serving the terminal is deployed on the satellite, and the first network device sends the first information to the second network device;

[0341] In some embodiments, the first network device determines that a third network device serving the terminal is deployed on the satellite and supports S&F operations, and the first network device sends the first information to the second network device.

[0342] In some embodiments, the third network device is a device distinct from the first network device and the second network device.

[0343] In some embodiments, the first network device determines that the first network device detects a second event, the terminal accesses a satellite communication-based network supporting S&F operations, and the second event is caused by the S&F operation, and the first network device sends the first information to the second network device.

[0344] In some embodiments, the second event is an event caused by a connection loss.

[0345] In some embodiments, the first information is further used to indicate a connection loss.

[0346] In some embodiments, the first information is further used to indicate a reason for the connection loss, where the reason is that the connection loss is caused by an S&F operation.

[0347] In some embodiments, the first information is further used to indicate the connection loss and a reason for the connection loss, where the reason is that the connection loss is caused by an S&F operation.

[0348] In some embodiments, the first information is used to assist the first server in determining the first behavior.

[0349] In some embodiments, the first behavior is an behavior of performing business communication.

[0350] In some embodiments, the first behavior includes at least one of the following:

[0351] determining to conduct service communication based on the first information when the network operates in the S&F mode;

[0352] determining not to conduct service communications based on the first information when the network operates in the S&F mode;

[0353] determining a time to send downlink data based on the first information;

[0354] Determining to subscribe to a third event based on the first information;

[0355] Determine not to subscribe to a third event based on the first information.

[0356] In some embodiments, the third event is an event caused by at least one of the following: UE reachability; location of the terminal; change in location of the terminal; loss of connectivity; or communication failure.

[0357] In some embodiments, the first server is a service capability server SCS and / or an application server AS.

[0358] Step S2102: The second network device sends first information to the first server.

[0359] In some embodiments, the first server receives the first information sent by the second network device.

[0360] In some embodiments, during the monitoring event notification process, the second network device sends a monitoring event notification message to the first server.

[0361] In some embodiments, the monitoring event notification message includes the first information.

[0362] In some embodiments, the first information is further used to indicate a connection loss and / or a reason for the connection loss, where the reason is that the connection loss is caused by an S&F operation.

[0363] Step S2103: The first server determines a first behavior based on the first information.

[0364] In some embodiments, the first behavior is an behavior of performing business communication.

[0365] In some embodiments, when the network operates in the S&F mode, it is determined based on the first information whether to conduct business communications.

[0366] In some embodiments, when the network operates in the S&F mode, it is determined based on the first information that no business communication is to be performed.

[0367] In some embodiments, the time for sending downlink data is determined based on the first information.

[0368] In some embodiments, subscribing to a third event is determined based on the first information.

[0369] In some embodiments, it is determined not to subscribe to a third event based on the first information.

[0370] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0371] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0372] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2103. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, and step S2103 can be implemented as an independent embodiment. For example, step S2101 combined with step S2102 and step S2103 can be implemented as an independent embodiment, and step S2102 combined with step S2103 can be implemented as an independent embodiment, but is not limited to this. It should be noted that each step can be implemented independently, or, if there is no contradiction, the order can be arbitrarily reversed and they can be freely combined for implementation.

[0373] Figure 3a FIG. 1 is a flow chart of a communication method according to an embodiment of the present disclosure. Figure 3a As shown, the embodiment of the present disclosure relates to a communication method, which is performed by a first network device. The method includes:

[0374] Step S3101: Send first information to the second network device.

[0375] In some embodiments, the first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0376] In some embodiments, the optional implementation of step S3101 can be found in Figure 2a Optional implementation of step S2101, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0377] In some embodiments, the first information is further used to indicate at least one of the following:

[0378] A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation;

[0379] a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable;

[0380] A first priority level is a priority level for transmitting data after the satellite network connection is restored.

[0381] In some embodiments, the satellite network connection comprises at least one of: a feeder link; a service link.

[0382] In some embodiments, the first time delay is determined based on ephemeris information and / or user location information.

[0383] In some embodiments, the first delay is determined based on a duration of unavailability of the feeder link and / or a duration of unavailability of the service link.

[0384] In some embodiments, sending the first information to the second network device includes:

[0385] During the monitoring event notification process, sending a monitoring event notification message to the second network device;

[0386] The monitoring event notification message includes the first information.

[0387] The sending of the first information to the second network device includes:

[0388] Determine that the second network device subscribes to a first event from the first network device, and send the first information to the second network device;

[0389] The first event is triggering the first network device to send notification information to the second network device when the terminal uses satellite network access.

[0390] In some embodiments, the sending of the first information to the second network device includes at least one of the following:

[0391] Determining that the first network device serving the terminal is deployed on the satellite, and sending the first information to the second network device;

[0392] It is determined that a third network device serving the terminal is deployed on the satellite and supports S&F operations, and the first information is sent to the second network device.

[0393] In some embodiments, sending the first information to the second network device includes:

[0394] determining that the first network device detects a second event, the terminal accesses a satellite communication-based network supporting an S&F operation, and the second event is caused by the S&F operation, and sending the first information to the second network device;

[0395] The second event is an event caused by connection loss.

[0396] In some embodiments, the first information is further used to indicate a connection loss and / or a reason for the connection loss, where the reason is that the connection loss is caused by an S&F operation.

[0397] In some embodiments, the first information is used to assist the first server in determining a first behavior, where the first behavior is an behavior of performing business communication.

[0398] In some embodiments, the first behavior includes at least one of the following:

[0399] determining to conduct service communication based on the first information when the network operates in the S&F mode;

[0400] determining not to conduct service communications based on the first information when the network operates in the S&F mode;

[0401] determining a time to send downlink data based on the first information;

[0402] Determining to subscribe to a third event based on the first information;

[0403] Determine not to subscribe to a third event based on the first information.

[0404] In some embodiments, the third event is an event caused by at least one of the following: reachability of the terminal; location of the terminal; change of location of the terminal; loss of connection; communication failure.

[0405] In some embodiments, the first server is a service capability server SCS and / or an application server AS.

[0406] In some embodiments, the first network device is one of the following: a mobility management entity MME; a home subscriber server HSS; a policy and charging rules function PCRF; and the second network device is a service capability exposure function SCEF.

[0407] Figure 4a FIG. 1 is a flow chart of a communication method according to an embodiment of the present disclosure. Figure 4a As shown, the embodiment of the present disclosure relates to a communication method, which is performed by a second network device, and the method includes:

[0408] Step S4101: Obtain first information.

[0409] In some embodiments, the optional implementation of step S4101 can be found in Figure 2a Optional implementation of step S2101, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0410] In some embodiments, the second network device receives the first information sent by the first network device, but is not limited thereto and may also receive the first information sent by other entities.

[0411] In some embodiments, the second network device obtains first information specified by the protocol.

[0412] In some embodiments, the second network device obtains the first information from an upper layer(s).

[0413] In some embodiments, the second network device performs processing to obtain the first information.

[0414] In some embodiments, step S4101 is omitted, and the second network device autonomously implements the function indicated by the first information, or the above function is default or by default.

[0415] Step S4102: Send first information to the first server.

[0416] In some embodiments, the optional implementation of step S4102 can be found in Figure 2a Optional implementation of step S2102, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0417] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4102. For example, step S4101 can be implemented as an independent embodiment, and step S4102 can be implemented as an independent embodiment. For example, step S4101 combined with step S4102 can be implemented as independent embodiments, but is not limited to this. It should be noted that each step can be implemented independently, or, if there is no contradiction, the order can be arbitrarily changed and freely combined for implementation.

[0418] Figure 4b FIG. 1 is a flow chart of a communication method according to an embodiment of the present disclosure. Figure 4b As shown, the embodiment of the present disclosure relates to a communication method, which is performed by a second network device, and the method includes:

[0419] Step S4201: Receive first information sent by a first network device.

[0420] In some embodiments, the first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0421] In some embodiments, the optional implementation of step S4201 can be found in Figure 2a Optional implementation of step S2101, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0422] In some embodiments, the first information is further used to indicate at least one of the following:

[0423] A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation;

[0424] a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable;

[0425] A first priority level is a priority level for transmitting data after the satellite network connection is restored.

[0426] In some embodiments, the satellite network connection comprises at least one of: a feeder link; a service link.

[0427] In some embodiments, the first time delay is determined based on ephemeris information and / or user location information.

[0428] In some embodiments, the first delay is determined based on a duration of unavailability of the feeder link and / or a duration of unavailability of the service link.

[0429] In some embodiments, the receiving the first information sent by the first network device includes:

[0430] During the monitoring event notification process, receiving a monitoring event notification message sent by the first network device;

[0431] The monitoring event notification message includes the first information.

[0432] In some embodiments, the first information is further used to indicate a connection loss and / or a reason for the connection loss, where the reason is that the connection loss is caused by an S&F operation.

[0433] In some embodiments, the first information is used to assist the first server in determining a first behavior, where the first behavior is an behavior of performing business communication.

[0434] In some embodiments, the first behavior includes at least one of the following:

[0435] determining to conduct service communication based on the first information when the network operates in the S&F mode;

[0436] determining not to conduct service communications based on the first information when the network operates in the S&F mode;

[0437] determining a time to send downlink data based on the first information;

[0438] Determining to subscribe to a third event based on the first information;

[0439] Determine not to subscribe to a third event based on the first information.

[0440] In some embodiments, the third event is an event caused by at least one of the following: reachability of the terminal; location of the terminal; change of location of the terminal; loss of connection; communication failure.

[0441] In some embodiments, the first network device is one of the following: a mobility management entity MME; a home subscriber server HSS; a policy and charging rules function PCRF; and the second network device is a service capability exposure function SCEF.

[0442] In some embodiments, the method further comprises:

[0443] The first information is sent to a first server.

[0444] In some embodiments, the first server is a service capability server SCS and / or an application server AS.

[0445] Figure 5a FIG. 1 is a flow chart of a communication method according to an embodiment of the present disclosure. Figure 5aAs shown, the embodiment of the present disclosure relates to a communication method, which is executed by a first server, and the method includes:

[0446] Step S5101: Obtain first information.

[0447] In some embodiments, the optional implementation of step S5101 can be found in Figure 2a Optional implementation of step S2102, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0448] In some embodiments, the first server receives the first information sent by the second network device, but is not limited thereto and may also receive the first information sent by other entities.

[0449] In some embodiments, the first server obtains first information specified by a protocol.

[0450] In some embodiments, the first server obtains the first information from an upper layer(s).

[0451] In some embodiments, the first server performs processing to obtain the first information.

[0452] In some embodiments, step S5101 is omitted, and the first server autonomously implements the function indicated by the first information, or the above function is default or by default.

[0453] Step S5102: Determine a first behavior based on the first information.

[0454] In some embodiments, the optional implementation of step S5102 can be found in Figure 2a Optional implementation of step S2103, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0455] The information indication method involved in the embodiments of the present disclosure may include at least one of steps S5101 to S5102. For example, step S5101 can be implemented as an independent embodiment, and step S5102 can be implemented as an independent embodiment. For example, step S5101 combined with step S5102 can be implemented as independent embodiments, but the present invention is not limited thereto. It should be noted that each step can be implemented independently, or, if there is no contradiction, the order can be arbitrarily changed and the steps can be freely combined for implementation.

[0456] Figure 5b FIG. 1 is a flow chart of a communication method according to an embodiment of the present disclosure. Figure 5b As shown, the embodiment of the present disclosure relates to a communication method, which is executed by a first server, and the method includes:

[0457] Step S5201: Receive first information sent by the second network device.

[0458] In some embodiments, the first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

[0459] In some embodiments, the optional implementation of step S5201 can be found in Figure 2a Optional implementation of step S2102, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0460] In some embodiments, the first information is further used to indicate at least one of the following:

[0461] A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation;

[0462] a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable;

[0463] A first priority level is a priority level for transmitting data after the satellite network connection is restored.

[0464] In some embodiments, the satellite network connection comprises at least one of: a feeder link; a service link.

[0465] In some embodiments, the first time delay is determined based on ephemeris information and / or user location information.

[0466] In some embodiments, the first delay is determined based on a duration of unavailability of the feeder link and / or a duration of unavailability of the service link.

[0467] In some embodiments, the method further comprises:

[0468] determining a first action based on the first information;

[0469] The first behavior is an behavior of executing business communication.

[0470] In some embodiments, the first behavior includes at least one of the following:

[0471] determining to conduct service communication based on the first information when the network operates in the S&F mode;

[0472] determining not to conduct service communications based on the first information when the network operates in the S&F mode;

[0473] determining a time to send downlink data based on the first information;

[0474] Determining to subscribe to a third event based on the first information;

[0475] Determine not to subscribe to a third event based on the first information.

[0476] In some embodiments, the third event is an event caused by at least one of the following: reachability of the terminal; location of the terminal; change of location of the terminal; loss of connection; communication failure.

[0477] In some embodiments, the first server is a service capability server SCS and / or an application server AS; a policy and charging rules function PCRF; and the second network device is a service capability exposure function SCEF.

[0478] Figure 6a FIG. 1 is an interactive diagram of a communication method according to an embodiment of the present disclosure. Figure 6a As shown, the embodiment of the present disclosure relates to a communication method, which is used in a communication system 100. The method includes one of the following steps:

[0479] Step S6101: The first network device sends first information to the second network device.

[0480] In some embodiments, the optional implementation of step S6101 can be found in Figure 2a Optional implementation of step S2101 and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0481] Step S6102: The second network device sends the first information to the first server.

[0482] In some embodiments, the optional implementation of step S6102 can be found in Figure 2a Optional implementation of step S2102 and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0483] In some embodiments, the above method may include the methods of the above-mentioned first core network device side and terminal side embodiments, which will not be repeated here.

[0484] In order to better understand the embodiments of the present disclosure, some exemplary embodiments are further described below:

[0485] In some embodiments, the first network element (corresponding to the first network device in the present disclosure) reports first information to the SCEF (corresponding to the second network device in the present disclosure), where the information is used to indicate that the network operates in a store and forward mode.

[0486] In some embodiments, the first network element may be an MME, an HSS, or a PCRF.

[0487] In some embodiments, when the first information is reported, at least one of the following information is also reported:

[0488] Data transmission delay (corresponding to the first delay), where the data transmission delay is mainly due to the delay caused by S&F and can be determined based on ephemeris information (e.g., based on the duration of the feeder link being unavailable);

[0489] a data storage quota (corresponding to the first data amount), wherein the data storage quota defines the amount of data that can be stored during a period when the satellite connection is unavailable (for example, when the feeder link is unavailable);

[0490] Data forwarding priority (corresponding to the first priority), the data forwarding priority defines the priority of data transmission when the satellite connection is restored.

[0491] In some embodiments, the first information is reported after the SCEF subscribes to the first event to the first network element.

[0492] In some embodiments, after receiving the subscription of the first event from the SCS or AS, the SCEF subscribes to the first event from the first network element.

[0493] In some embodiments, the first event triggers the first network device to send notification information to the second network device when the terminal uses satellite network access.

[0494] In some embodiments, the reporting result of the first information can assist the service capability server SCS or the application server AS in determining the service communication behavior (corresponding to the first behavior, for example, determining whether to carry out service communication when the network operates in the storage and forwarding mode based on the delay of the first event reporting, or determining the time to send downlink data based on the first event reporting, or determining to subscribe to other events (UEreachability, loss of connectivity) based on the first event reporting).

[0495] Example 1: Reusable Figure 1d process.

[0496] See Figure 7a , an embodiment of the present disclosure relates to a communication method, the method comprising:

[0497] Step S7101: Corresponding to step S1101, the SCS or AS sets the monitoring type to "network with S&F operation" and sends a monitoring request to the SCEF. "Network with S&F operation" means a network that uses satellite access and the network function on the satellite supports S&F operation.

[0498] Step S7102 to step S7103: corresponding to steps S1102 to S1103.

[0499] Right now:

[0500] Step S7102: SCEF performs processing.

[0501] Step S7103: SCEF sends a monitoring request to HSS.

[0502] Step S7104: corresponds to step S1104, that is, the HSS performs processing.

[0503] Step S7105: When the HSS identifies that the monitoring request is associated with an individual UE, the HSS sends the monitoring request to the MME selected by the UE. If the monitoring request is associated with a group of UEs, the HSS sends the monitoring request to the MME corresponding to the MME list selected by the affected UE.

[0504] Step S7106: If the MME serving the UE is deployed on a satellite, or it knows that other network functions serving the UE are deployed on a satellite and the deployed network functions support S&F operations, the MME determines to report a "network with S&F operations" event. Otherwise, the MME does not report the event or reports that the network does not have S&F operations.

[0505] Step S7107: The MME reports the "Network with S&F Operation" monitoring event to the SCEF. As part of the event report, the following information may be reported along with the event. This information includes:

[0506] The time delay of the S&F operation (corresponding to the first time delay), which can be determined based on the satellite ephemeris information;

[0507] The data storage quota (corresponding to the first data volume) defines the amount of data that can be stored during the connection;

[0508] Data forwarding priority (corresponding to the first priority), defines the data forwarding priority when the connection is restored.

[0509] Step S7108: HSS reports the "Network with S&F Operation" to the SCEF. If the MME does not provide data storage quota or data forwarding priority, the HSS can determine the quota and priority based on the UE subscription information and provide this information together with the "Network with S&F Operation" event.

[0510] Step S7109: SCEF reports the event and information to SCS / AS. Taking into account the event and other information (time delay, data storage quota, data forwarding priority), AS can determine whether and when to initiate downlink service data.

[0511] 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.

[0512] Example 2: Reuse the "Connection Lost" monitoring event described in TS23.682 clause 5.6.1.3.

[0513] See Figure 7b , an embodiment of the present disclosure relates to a communication method, the method comprising:

[0514] Step S7201: corresponding to step S1101, the SCS / AS sets the monitoring type to "connectivity loss" and optionally adds a maximum detection time before sending a monitoring request to the SCEF.

[0515] Step S7202 to step S7205: correspond to step S1102 to step S1105.

[0516] Right now,

[0517] Step S7202: SCEF performs processing.

[0518] Step S7203: SCEF sends a monitoring request to HSS.

[0519] Step S7204: HSS performs processing.

[0520] Step S7205: HSS sends an insert subscription data request to MME.

[0521] Step S7206: If the MME detects a "connection loss" event, and if the MME knows that the UE is using satellite access with S&F operation and that the "connection loss" event is caused by S&F operation, the MME may report the "connection loss" event along with an indication of "network with S&F operation," indicating that the connection loss is caused by S&F operation. In addition, a time delay determined based on satellite ephemeris information is also provided with the event.

[0522] Step S7207: The "lost connection" event is reported to the SCS or AS through the HSS and SCEF, along with the "network with S&F operation" indication and optional time delay information. Taking into account the indication and time delay information, the AS can determine whether and when to initiate downlink service data.

[0523] 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.

[0524] It should be understood that the division of the various units or modules in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into a physical entity, or they can be physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0525] 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.

[0526] Figure 8a A schematic diagram of the structure of the first network device proposed in the embodiment of the present disclosure. Figure 8a As shown, the first network device 8100 may include at least one of a transceiver module 8101 and a processing module 8102. In some embodiments, the transceiver module is used to send and receive information. Optionally, the transceiver module is used to perform at least one of the communication steps, such as sending and / or receiving, performed by the first network device in any of the above methods, which are not further described here. Optionally, the processing module is used to perform at least one of the other steps performed by the first network device in any of the above methods, which are not further described here.

[0527] Figure 8b A schematic diagram of the structure of the second network device proposed in the embodiment of the present disclosure. Figure 8bAs shown, the second network device 8200 may include: at least one of a transceiver module 8201, a processing module 8202, etc. In some embodiments, the transceiver module is used to send and receive information. Optionally, the transceiver module is used to perform at least one of the communication steps, such as sending and / or receiving, performed by the second network device in any of the above methods, which are not further described here. Optionally, the processing module is used to perform at least one of the other steps performed by the second network device in any of the above methods, which are not further described here.

[0528] Figure 8c A schematic diagram of the structure of the first server proposed in the embodiment of the present disclosure. Figure 8c As shown, the first server 8300 may include: at least one of a transceiver module 8301 and a processing module 8302. In some embodiments, the transceiver module is used to send and receive information. Optionally, the transceiver module is used to perform at least one of the communication steps, such as sending and / or receiving, performed by the first server in any of the above methods, which are not further described here. Optionally, the processing module is used to perform at least one of the other steps performed by the first server in any of the above methods, which are not further described here.

[0529] Figure 9a is a schematic diagram of the structure of a communication device 9100 proposed in an embodiment of the present disclosure. Communication device 9100 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 implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal implementing any of the above methods. Communication device 9100 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.

[0530] like Figure 9a As shown, the communication device 9100 includes one or more processors 9101. The processor 9101 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, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 9100 is used to perform any of the above methods.

[0531] In some embodiments, the communication device 9100 further includes one or more memories 9102 for storing instructions. Optionally, all or part of the memories 9102 may be located outside the communication device 9100.

[0532] In some embodiments, the communication device 9100 further includes one or more transceivers 9103. When the communication device 9100 includes one or more transceivers 9103, the transceiver 9103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101 and step S3101, but not limited thereto), and the processor 9101 performs at least one of the other steps (for example, step S2102 and step S3102, but not limited thereto).

[0533] 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.

[0534] In some embodiments, the communication device 9100 may include one or more interface circuits 9104. Optionally, the interface circuit 9104 is connected to the memory 9102. The interface circuit 9104 may be configured to receive signals from the memory 9102 or other devices, and may be configured to send signals to the memory 9102 or other devices. For example, the interface circuit 9104 may read instructions stored in the memory 9102 and send the instructions to the processor 9101.

[0535] The communication device 9100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 9100 described in the present disclosure is not limited thereto, and the structure of the communication device 9100 may not be limited thereto. Figure 9a The communication device may be an independent device or a 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 and 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.

[0536] Figure 9b 9200 is a schematic diagram of the structure of the chip 9200 proposed in the embodiment of the present disclosure. For the case where the communication device 9100 can be a chip or a chip system, please refer to Figure 9b The structure of the chip 9200 is shown, but is not limited to this.

[0537] The chip 9200 includes one or more processors 9201 , and the chip 9200 is configured to execute any of the above methods.

[0538] In some embodiments, the chip 9200 further includes one or more interface circuits 9202. Optionally, the interface circuit 9202 is connected to the memory 9203. The interface circuit 9202 can be used to receive signals from the memory 9203 or other devices, and can be used to send signals to the memory 9203 or other devices. For example, the interface circuit 9202 can read instructions stored in the memory 9203 and send the instructions to the processor 9201.

[0539] In some embodiments, the interface circuit 9202 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S3101, but not limited to this), and the processor 9201 performs at least one of the other steps (for example, step S2102, step S3102, but not limited to this).

[0540] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0541] In some embodiments, the chip 9200 further includes one or more memories 9203 for storing instructions. Alternatively, all or part of the memories 9203 may be located outside the chip 9200.

[0542] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 9100, causes the communication device 9100 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 temporary storage medium.

[0543] The present disclosure also provides a program product, which, when executed by the communication device 9100, enables the communication device 9100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0544] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that: The method is performed by a first network device, and the method includes: Sending the first information to the second network device; The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

2. The method according to claim 1, characterized in that The first information is further used to indicate at least one of the following: A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation; a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable; A first priority level is a priority level for transmitting data after the satellite network connection is restored.

3. The method according to claim 2, characterized in that The first time delay is determined based on at least one of the following: ephemeris information; user location information; unavailable time of the feeder link; and unavailable time of the service link.

4. The method according to any one of claims 1 to 3, characterized in that The first information is used to assist the first server in determining a first behavior, where the first behavior is an behavior of executing business communication.

5. The method according to claim 4, characterized in that The first behavior includes at least one of the following: determining to conduct service communication based on the first information when the network operates in the S&F mode; determining not to conduct service communications based on the first information when the network operates in the S&F mode; determining a time to send downlink data based on the first information; Determining to subscribe to a third event based on the first information; Determine not to subscribe to a third event based on the first information.

6. The method according to claim 5, characterized in that The third event is an event caused by at least one of the following: reachability of the terminal; location of the terminal; change of location of the terminal; loss of connection; and communication failure.

7. The method according to any one of claims 1 to 6, characterized in that The sending the first information to the second network device includes: During the monitoring event notification process, sending a monitoring event notification message to the second network device; wherein the monitoring event notification message includes the first information; Determine that the second network device subscribes to a first event from the first network device, and send the first information to the second network device; wherein the first event triggers the first network device to send notification information to the second network device when using satellite network access; Determining that the first network device serving the terminal is deployed on the satellite, and sending the first information to the second network device; Determining that a third network device serving the terminal is deployed on the satellite and supports S&F operations, and sending the first information to the second network device; Determine that the first network device detects a second event, the terminal accesses a satellite communication-based network that supports S&F operations, and the second event is caused by the S&F operation, and send the first information to the second network device; wherein the second event is an event caused by connection loss.

8. The method according to any one of claims 1 to 7, characterized in that The first information is further used to indicate the connection loss and / or the reason for the connection loss, where the reason is that the connection loss is caused by an S&F operation.

9. The method according to claim 2, characterized in that The satellite network connection includes at least one of the following: a feeder link; a service link.

10. The method according to any one of claims 4 to 6, characterized in that The first server is a service capability server SCS and / or an application server AS.

11. The method according to any one of claims 1 to 10, characterized in that The first network device is one of the following: a mobility management entity MME; a home subscriber server HSS; a policy and charging rules function PCRF; and the second network device is a service capability exposure function SCEF.

12. A communication method, characterized in that: The method is performed by a second network device, and the method includes: receiving first information sent by a first network device; The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

13. The method according to claim 12, characterized in that The first information is further used to indicate at least one of the following: A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation; a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable; A first priority level is a priority level for transmitting data after the satellite network connection is restored.

14. The method according to claim 13, characterized in that The first time delay is determined based on at least one of the following: ephemeris information; user location information; unavailable time of the feeder link; and unavailable time of the service link.

15. The method according to any one of claims 12 to 14, characterized in that The first information is used to assist the first server in determining a first behavior, where the first behavior is an behavior of executing business communication.

16. The method according to claim 15, characterized in that The first behavior includes at least one of the following: determining to conduct service communication based on the first information when the network operates in the S&F mode; determining not to conduct service communications based on the first information when the network operates in the S&F mode; determining a time to send downlink data based on the first information; Determining to subscribe to a third event based on the first information; Determine not to subscribe to a third event based on the first information.

17. The method according to claim 16, characterized in that The third event is an event caused by at least one of the following: reachability of the terminal; location of the terminal; change of location of the terminal; loss of connection; and communication failure.

18. The method according to any one of claims 12 to 17, characterized in that The receiving the first information sent by the first network device includes: During the monitoring event notification process, receiving a monitoring event notification message sent by the first network device; The monitoring event notification message includes the first information.

19. The method according to any one of claims 12 to 18, characterized in that The first information is further used to indicate the connection loss and / or the reason for the connection loss, where the reason is that the connection loss is caused by an S&F operation.

20. The method according to any one of claims 12 to 19, characterized in that The first network device is one of the following: a mobility management entity MME; a home subscriber server HSS; a policy and charging rules function PCRF; and the second network device is a service capability exposure function SCEF.

21. The method according to any one of claims 12 to 20, characterized in that The method further comprises: The first information is sent to a first server.

22. The method according to claim 13, wherein The satellite network connection includes at least one of the following: a feeder link; a service link.

23. The method according to claim 15 or 17, characterized in that The first server is a service capability server SCS and / or an application server AS.

24. A communication method, characterized in that: The method comprises: receiving first information sent by a second network device; The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

25. The method according to claim 24, characterized in that The first information is further used to indicate at least one of the following: A first delay, wherein the first delay is: a data transmission delay caused by performing the S&F operation; a first data amount, the first data amount being an amount of data that can be stored by the device performing the S&F operation during a first period, the first period being a period during which the satellite network connection is unavailable; A first priority level is a priority level for transmitting data after the satellite network connection is restored.

26. The method according to claim 24 or 25, characterized in that The first time delay is determined based on at least one of the following: ephemeris information; user location information; unavailable time of the feeder link; and unavailable time of the service link.

27. The method according to any one of claims 24 to 26, characterized in that The method further comprises: determining a first action based on the first information; The first behavior is an behavior of executing business communication.

28. The method according to claim 27, characterized in that The first behavior includes at least one of the following: determining to conduct service communication based on the first information when the network operates in the S&F mode; determining not to conduct service communications based on the first information when the network operates in the S&F mode; determining a time to send downlink data based on the first information; Determining to subscribe to a third event based on the first information; Determine not to subscribe to a third event based on the first information.

29. The method according to claim 28, characterized in that The third event is an event caused by at least one of: reachability of the terminal; location of the terminal; change of location of the terminal; loss of connection; and communication failure.

30. The method according to claim 25, wherein The satellite network connection includes at least one of the following: a feeder link; a service link.

31. The method according to claim 24, wherein The first server is a service capability server SCS and / or an application server AS; the second network device is a service capability exposure function SCEF.

32. A communication method, characterized in that: The method comprises: The first network device sends first information to the second network device; The second network device sends the first information to the first server; The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

33. A first network device, characterized in that: The first network device includes: The transceiver module is configured as follows: Sending the first information to the second network device; The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

34. A second network device, characterized in that: The second network device includes: The transceiver module is configured as follows: receiving first information sent by a first network device; The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

35. A first server, characterized in that: The first server includes: The transceiver module is configured as follows: receiving first information sent by a second network device; The first information is used to indicate that the satellite communication-based network operates in a store-and-forward (S&F) mode.

36. A communication system, characterized in that: The communication system includes a first network device, a second network device and a first server; the first network device is configured to implement the method described in any one of claims 1 to 11, the second network device is configured to implement the method described in any one of claims 12 to 23, and the first server is configured to implement the method described in any one of claims 24 to 31.

37. A first network device, characterized in that: The first network device includes: one or more processors; The first network device is configured to execute the method according to any one of claims 1 to 11.

38. A second network device, characterized in that: The second network device includes: one or more processors; The second network device is configured to execute the method according to any one of claims 12 to 23.

39. A first server, characterized in that: The first server includes: one or more processors; Wherein, the first server is used to execute the method according to any one of claims 24 to 31.

40. A storage medium, characterized in that The storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the method according to any one of claims 1 to 11, claims 12 to 23, or claims 24 to 31.

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