Information transmission method and device, storage medium and program product

Abstract

The invention discloses an information transmission method and device, a storage medium and a program product, relates to the technical field of communication, and aims to reduce interaction time delay between a terminal and a core network element. The method comprises: receiving first information sent by a network element of a core network, the first information comprising first terminal identification information; a downlink signaling; and downlink data packet information. According to the embodiment of the invention, the interaction time delay between the terminal and the network element of the core network can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular to an information transmission method and device, a storage medium and a program product. BACKGROUND

[0002] In remote areas such as ocean deserts, it can be impossible to achieve complete coverage of the ground network, and satellite technology needs to be used to meet the communication needs of terminals. For users who are not sensitive to delay, consider using satellites with store & forward (S&F) capabilities to deliver information. In simple terms, the current satellite coverage area 1, the terminal sends information to satellite 1, at this time if satellite 1 cannot connect to the core network, satellite 1 will store this information; when satellite 1 moves to an area that can connect to the core network, it will send the information to the core network; the core network processes and sends the downlink information of the terminal to the satellite that will cover area 1, and the satellite delivers the downlink data to the terminal. By using this way, in the scenario where the ground network cannot be deployed, the interaction with the delay-insensitive user can be realized.

[0003] According to the downlink message feedback of the core network to the original satellite or other satellites, the S&F service can be divided into single-satellite mode and multi-satellite mode. In the existing paging technology, the terminal is usually paged first, and then the downlink message is sent after the connection is established. In the S&F scenario, this way will cause the interaction delay between the terminal and the core network. SUMMARY

[0004] Embodiments of the present application provide an information transmission method and device, a storage medium and a program product to reduce the interaction delay between the terminal and the core network element.

[0005] In a first aspect, the embodiments of the present application provide an information transmission method applied to a first satellite network device, and the method comprises:

[0006] receiving first information sent by a core network element, wherein the first information comprises:

[0007] first terminal identification information;

[0008] downlink signaling;

[0009] downlink data packet information.

[0010] Optionally, the receiving first information sent by the core network element comprises:

[0011] receiving first information and second information sent by the core network element, wherein the first information is the downlink signaling, and comprises the first terminal identification information, and the second information comprises the first terminal identification information and the downlink data packet information; or

[0012] receiving a first message sent by the core network element, the first message comprising the first information; or

[0013] receiving a first message sent by the core network element, wherein the first message is the downlink signaling, and comprises the first terminal identification information and the downlink data packet information.

[0014] Optionally, the first information further comprises one or more of the following information:

[0015] first terminal location information, used to indicate a region for paging by the first satellite network device;

[0016] first maximum time delay information;

[0017] paging time information, used to indicate a time for paging by the first satellite network device;

[0018] service type indication information, used to indicate that a current service type is a satellite storage and forwarding service.

[0019] Optionally, the method further comprises:

[0020] if it is determined that the first message comprises one or more of the first terminal identification information, the first terminal location information, the first maximum time delay information, the paging time information and the service type indication information, it is determined that a current service type is a satellite storage and forwarding service.

[0021] Optionally, the method further comprises:

[0022] sending a paging message to the terminal according to the first message, wherein the paging message comprises the downlink signaling and the downlink data packet information.

[0023] Optionally, the method further comprises:

[0024] sending a paging message to the terminal according to the first message;

[0025] after a connection is established with the terminal, sending the downlink signaling and the downlink data packet information to the terminal.

[0026] Optionally, the paging message comprises first indication, and the first indication is used to indicate that the terminal initiates a random access procedure with the first satellite network device.

[0027] Optionally, the first terminal identification information comprises:

[0028] The temporary identifier allocated by the first satellite network device for the terminal, an identifier composed of the temporary identifier allocated by the first satellite network device for the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network element for the terminal, or the permanent identifier of the terminal.

[0029] In a second aspect, the embodiments of the present application provide an information transmission method applied to a core network element, the method comprising:

[0030] sending first information to a first satellite network device, wherein the first information comprises:

[0031] first terminal identification information;

[0032] downlink signaling;

[0033] downlink data packet information.

[0034] Optionally, the sending of the first information to the first satellite network device comprises:

[0035] sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information, and sending a second message to the first satellite network device, wherein the second message comprises the first terminal identification information and the downlink data packet information;

[0036] or

[0037] sending a first message to the first satellite network device, wherein the first message comprises the first information; or

[0038] sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information and the downlink data packet information.

[0039] Optionally, the first information further comprises one or more of the following information:

[0040] first terminal location information, used to indicate a region for paging by the first satellite network device;

[0041] first maximum time delay information;

[0042] paging time information, used to indicate a time for paging by the first satellite network device;

[0043] service type indication information, used to indicate that a current service type is a satellite storage and forwarding service.

[0044] Optionally, the method further comprises:

[0045] receive a third message sent by the second satellite network device, wherein the third message comprises:

[0046] second terminal identification information;

[0047] uplink signaling;

[0048] uplink data packet information.

[0049] Optionally, the third message further comprises one or more of the following information:

[0050] second terminal location information, used for indicating a location where the terminal is located;

[0051] service type indication information, used for indicating that a current service type is a satellite storage and forwarding service;

[0052] second maximum time delay information.

[0053] Optionally, the first maximum time delay information is less than the second maximum time delay information.

[0054] The first maximum time delay information is used for indicating a maximum time length used for paging the terminal.

[0055] The second maximum time delay information is used for indicating a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0056] Optionally, the first terminal identification information and / or the second terminal identification information comprises:

[0057] a temporary identifier allocated to the terminal by the first satellite network device, a composed identifier composed of a temporary identifier allocated to the terminal by the first satellite network device and an identifier of the first satellite network device, an identification identifier allocated to the terminal by the core network element, or a permanent identifier of the terminal.

[0058] In a third aspect, an embodiment of the present application provides an information transmission method applied to a second satellite network device, and the method comprises:

[0059] sending a second message to a core network element, wherein the second message is used for sending first information to a terminal, and the first information comprises:

[0060] first terminal identification information;

[0061] downlink signaling;

[0062] downlink data packet information;

[0063] The second message comprises:

[0064] second terminal identification information;

[0065] uplink signaling;

[0066] uplink data packet information.

[0067] Optionally, the first information further comprises one or more of the following information:

[0068] first terminal location information, used to indicate a region in which the first satellite network device performs paging;

[0069] first maximum time delay information;

[0070] paging time information, used to indicate a time at which the first satellite network device performs paging;

[0071] service type indication information, used to indicate that a current service type is a satellite storage and forwarding service;

[0072] and / or

[0073] The second message further comprises one or more of the following information:

[0074] second terminal location information, used to indicate a location in which the terminal is located;

[0075] service type indication information, used to indicate that a current service type is a satellite storage and forwarding service;

[0076] second maximum time delay information.

[0077] Optionally, the first maximum time delay information is less than the second maximum time delay information.

[0078] The first maximum time delay information is used to indicate a maximum time length used for paging the terminal.

[0079] The second maximum time delay information is used to indicate a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0080] Optionally, the first terminal identification information and / or the second terminal identification information comprises:

[0081] a temporary identifier allocated by the first satellite network device to the terminal, an identifier composed of a temporary identifier allocated by the first satellite network device to the terminal and an identifier of the first satellite network device, an identification identifier allocated by the core network element to the terminal, or a permanent identifier of the terminal.

[0082] In a fourth aspect, an information transmission apparatus is provided, applied to a first satellite network device, and comprising a memory, a transceiver, and a processor.

[0083] a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

[0084] receiving first information sent by a core network element, wherein the first information comprises:

[0085] first terminal identification information;

[0086] downlink signaling;

[0087] downlink data packet information.

[0088] Optionally, the first information sent by the core network element comprises:

[0089] receiving first information sent by a core network element, wherein the first information comprises:

[0090] receiving first information sent by a core network element, wherein the first information comprises:

[0091] receiving first information sent by a core network element, wherein the first information comprises:

[0092] Optionally, the first information further comprises one or more of the following information:

[0093] first terminal location information for instructing the first satellite network device to perform paging in a region;

[0094] first maximum time delay information;

[0095] paging time information for instructing the first satellite network device to perform paging at a time;

[0096] service type indication information for indicating that the current service type is a satellite storage and forwarding service.

[0097] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0098] if it is determined that the first message comprises one or more of the first terminal identification information, the first terminal location information, the first maximum time delay information, the paging time information and the service type indication information, it is determined that the current service is of the satellite storage and forwarding service type.

[0099] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0100] sending a paging message to the terminal according to the first message, wherein the paging message comprises the downlink signaling and the downlink data packet information.

[0101] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0102] sending a paging message to the terminal according to the first message;

[0103] sending the downlink signaling and the downlink data packet information to the terminal after establishing a connection with the terminal.

[0104] Optionally, the paging message comprises a first indication, and the first indication is used to instruct the terminal to initiate a random access procedure with the first satellite network device.

[0105] Optionally, the first terminal identification information comprises:

[0106] the temporary identifier allocated by the first satellite network device for the terminal, an identifier composed of the temporary identifier allocated by the first satellite network device for the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network element for the terminal, or the permanent identifier of the terminal.

[0107] In a fifth aspect, an embodiment of the present application provides an information transmission device applied to a core network element, comprising: a memory, a transceiver, and a processor:

[0108] the memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0109] sending first information to a first satellite network device, wherein the first information comprises:

[0110] first terminal identification information;

[0111] downlink signaling;

[0112] downlink data packet information.

[0113] Optionally, the sending of the first information to the first satellite network device comprises:

[0114] sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information, and sending a second message to the first satellite network device, wherein the second message comprises the first terminal identification information and the downlink data packet information;

[0115] or

[0116] sending a first message to the first satellite network device, wherein the first message comprises the first information;

[0117] sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information and the downlink data packet information.

[0118] Optionally, the first information further comprises one or more of the following information:

[0119] first terminal location information, used to instruct the first satellite network device to perform paging in a region;

[0120] first maximum time delay information;

[0121] paging time information, used to instruct the first satellite network device to perform paging at a time;

[0122] service type indication information, used to indicate that the current service type is satellite storage and forwarding service.

[0123] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0124] receiving a third message sent by a second satellite network device, wherein the third message comprises:

[0125] second terminal identification information;

[0126] uplink signaling;

[0127] uplink data packet information.

[0128] Optionally, the third message further comprises one or more of the following information:

[0129] second terminal location information, used to indicate a location where the terminal is located;

[0130] service type indication information, used to indicate that the current service type is satellite storage and forwarding service;

[0131] second maximum time delay information.

[0132] Optionally, the first maximum time delay information is less than the second maximum time delay information;

[0133] The first maximum time delay information is used to indicate a maximum time length used for paging the terminal.

[0134] The second maximum time delay information is used to indicate a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0135] Optionally, the first terminal identification information and / or the second terminal identification information comprises:

[0136] The temporary identifier allocated by the first satellite network device for the terminal, an identifier composed of the temporary identifier allocated by the first satellite network device for the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network element for the terminal, or the permanent identifier of the terminal.

[0137] In a sixth aspect, an information transmission apparatus is provided, which is applied to a second satellite network device and comprises a memory, a transceiver, and a processor.

[0138] The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0139] sending a second message to a core network element, wherein the second message is used to send first information to a terminal, and the first information comprises:

[0140] first terminal identification information;

[0141] downlink signaling;

[0142] downlink data packet information;

[0143] The second message comprises:

[0144] second terminal identification information;

[0145] uplink signaling;

[0146] uplink data packet information.

[0147] Optionally, the first information further comprises one or more of the following information:

[0148] first terminal location information, used to indicate a paging area of the first satellite network device;

[0149] first maximum time delay information;

[0150] paging time information, used to indicate a paging time of the first satellite network device;

[0151] The service type indication information is used to indicate that the current service type is a satellite storage and forwarding service.

[0152] And / or

[0153] The second message further includes one or more of the following information:

[0154] Second terminal location information, used to indicate the location where the terminal is located;

[0155] The service type indication information is used to indicate that the current service type is a satellite storage and forwarding service.

[0156] Second maximum time delay information.

[0157] Optionally, the first maximum time delay information is less than the second maximum time delay information.

[0158] The first maximum time delay information is used to indicate the maximum time length used for paging the terminal.

[0159] The second maximum time delay information is used to indicate the maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0160] Optionally, the first terminal identification information and / or the second terminal identification information includes:

[0161] The temporary identifier allocated by the first satellite network device for the terminal, an identifier composed of the temporary identifier allocated by the first satellite network device for the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network element for the terminal, or the permanent identifier of the terminal.

[0162] In a seventh aspect, an embodiment of the present application provides an information transmission apparatus applied to a first satellite network device, and includes:

[0163] A first receiving unit is configured to receive first information sent by a core network element, wherein the first information includes:

[0164] First terminal identification information;

[0165] Downlink signaling;

[0166] Downlink data packet information.

[0167] In an eighth aspect, an embodiment of the present application provides an information transmission apparatus applied to a core network element, and includes:

[0168] A first sending unit is configured to send first information to a first satellite network device, wherein the first information includes:

[0169] First terminal identification information;

[0170] downlink signaling;

[0171] downlink data packet information.

[0172] In a ninth aspect, an embodiment of the present application provides an information transmission apparatus, applied to a second satellite network device, and comprising:

[0173] a first sending unit, configured to send a second message to a core network element, wherein the second message is used to send first information to a terminal, and the first information comprises:

[0174] first terminal identification information;

[0175] downlink signaling;

[0176] downlink data packet information;

[0177] the second message comprises:

[0178] second terminal identification information;

[0179] uplink signaling;

[0180] uplink data packet information.

[0181] In a tenth aspect, an embodiment of the present application further provides a processor readable storage medium, wherein the readable storage medium stores a computer program, and the computer program is executed by a processor to implement steps in the information transmission method.

[0182] In an eleventh aspect, an embodiment of the present application further provides a computer program product, comprising computer instructions, and the computer instructions are executed by a processor to implement steps in the information transmission method.

[0183] In the embodiment of the present application, the first satellite network device can receive the first information of the core network element, and since the first information comprises the downlink signaling and the downlink data packet information, the first satellite network device can obtain the downlink data packet information at the same time of obtaining the downlink signaling, and then send the downlink data packet information to the terminal, without waiting for the connection between the core network and the terminal to be established, and then sending the downlink data packet information to the terminal, thereby reducing the time delay between the terminal and the core network element. BRIEF DESCRIPTION OF DRAWINGS

[0184] Figure 1 is one of flowcharts of the information transmission method provided by an embodiment of the present application;

[0185] Figure 2 is another of flowcharts of the information transmission method provided by an embodiment of the present application;

[0186] Figure 3 is a third of flowcharts of the information transmission method provided by an embodiment of the present application;

[0187] Figure 4 Figure 4 is a flowchart of a fourth information transmission method according to an embodiment of the present application;

[0188] Figure 5 Figure 5 is a flowchart of a fifth information transmission method according to an embodiment of the present application;

[0189] Figure 6 Figure 1 is a structural diagram of a first information transmission device according to an embodiment of the present application;

[0190] Figure 7 Figure 2 is a structural diagram of a second information transmission device according to an embodiment of the present application;

[0191] Figure 8 Figure 3 is a structural diagram of a third information transmission device according to an embodiment of the present application;

[0192] Figure 9 Figure 4 is a structural diagram of a fourth information transmission device according to an embodiment of the present application;

[0193] Figure 10 Figure 5 is a structural diagram of a fifth information transmission device according to an embodiment of the present application;

[0194] Figure 11 Figure 6 is a structural diagram of a sixth information transmission device according to an embodiment of the present application. DETAILED DESCRIPTION

[0195] In the embodiments of the present application, the term "and / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0196] In the embodiments of the present application, the term "multiple" means two or more, and other quantifiers are similar.

[0197] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0198] The embodiments of the present application provide an information transmission method and device to reduce the delay between a terminal and a core network element.

[0199] The method and the device are based on the same application concept, and the device and the method can be referred to each other for implementation because the principles of solving problems are similar, and the repeated parts will not be described.

[0200] Referring to Figure 1 , Figure 1 is a flowchart of an information transmission method provided by an embodiment of the application, and is applied to a first satellite network device, such as a first satellite base station. Figure 1 As shown in the figure, the method comprises the following steps:

[0201] Step 101: receiving first information sent by a core network element, wherein the first information comprises:

[0202] first terminal identification information;

[0203] downlink signaling;

[0204] downlink data packet information.

[0205] The application can be applied to a store-and-forward service of a satellite, and the first satellite network device can be a first satellite base station.

[0206] In this step, the first satellite network device can receive first information and second information sent by the core network element, wherein the first information is the downlink signaling and comprises the first terminal identification information, and the second information comprises the first terminal identification information and the downlink data packet information. The downlink signaling can be a paging message, and the second information can be other downlink information. The first terminal identification information included in the two messages can be used to associate the two messages, instruct the first satellite network device to page a specified terminal, and transmit the downlink data packet.

[0207] Alternatively, the first satellite network device can receive first information sent by the core network element, and the first information comprises the first information. The first information can be other downlink information except for a paging message.

[0208] Alternatively, the first satellite network device can receive first information sent by the core network element, wherein the first information is the downlink signaling and comprises the first terminal identification information and the downlink data packet information. The downlink signaling can be a paging message.

[0209] The first terminal identification information comprises:

[0210] The temporary identifier allocated by the first satellite network device to the terminal, the identifier composed of the temporary identifier allocated by the first satellite network device to the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network network element to the terminal (for example, Globally Unique Temporary UE Identity (GUTI), S-Temporary Mobile Subscription Identifier (S-TMSI), or the permanent identifier of the terminal (such as International Mobile Subscriber Identity (IMSI)).

[0211] Optionally, in the embodiments of the present application, the first information further comprises one or more of the following information:

[0212] The first terminal position information is used to indicate the area in which the first satellite network device performs paging.

[0213] The first maximum time delay information.

[0214] The paging time information is used to indicate the time in which the first satellite network device performs paging.

[0215] The service type indication information is used to indicate that the current service type is satellite storage and forwarding service.

[0216] The first terminal position information can be Tracking Area Identity (TAI) information, Tracking Area (TA) information, cell ID (cell identification) and the like, and can also be geographical position information indicated by coordinates.

[0217] The first maximum time delay information is used to indicate the maximum time length used for paging the terminal. For example, the first maximum time delay information can be obtained by the core network network element according to the maximum time delay information sent by the terminal after deducting the time cost of uplink, or can be determined by the Mobility Management Entity (MME) according to the demand of service, historical information, ephemeris information and the like. If the specified terminal is not paged within the time indicated by the first maximum time delay information, the first satellite network device discards the stored information, only retains the paging failure indication, and feeds back the failure information to the core network when the first satellite network device is connected to the core network.

[0218] The paging time information can be a time point information, for example, 60 min, indicating that the terminal is paged after 60 min from the current time point; or a time point information / time point information and a duration information, indicating that the terminal is paged from a certain time point / a specified time after the current time point, and the duration of paging is indicated by the duration (for example, if the paging is 30 min, the duration is 30 min); or two time points, indicating the start time and end time of paging.

[0219] Optionally, in the embodiment of the present application, if the first satellite network device determines that the first message includes one or more of the first terminal identification information, the first terminal location information, the first maximum time delay information, the paging time information, and the service type indication information, it is determined that the current service is a satellite storage and forwarding service.

[0220] That is, the current service type can be indicated in an explicit or implicit manner. In the explicit manner, the first message includes the service type indication information, and then the first satellite network device determines that the current service is a satellite storage and forwarding service according to the service type indication information. In the implicit manner, the first message does not include the service type indication information, and then the first satellite network device determines that the first message includes one or more of the first terminal identification information, the first terminal location information, the first maximum time delay information, and the paging time information, that is, it is determined that the current service is a satellite storage and forwarding service.

[0221] In the embodiment of the present application, the first satellite network device can receive the first information of the core network element. Since the first information includes the downlink signaling and the downlink data packet information, the first satellite network device can obtain the downlink signaling and the downlink data packet information at the same time, and then send them to the terminal, without waiting for the connection between the core network and the terminal to be established before sending the downlink data packet information to the terminal, thereby reducing the time delay between the terminal and the core network element.

[0222] On the basis of the above embodiment, the first satellite network device can also send a paging message to the terminal according to the first message, wherein the paging message includes the downlink signaling and the downlink data packet information. Alternatively, the first satellite network device can also send a paging message to the terminal according to the first message, and send the downlink signaling and the downlink data packet information to the terminal after the connection with the terminal is established. In this case, the paging message includes a first indication, and the first indication is used to indicate that the terminal initiates a random access procedure with the first satellite network device. Correspondingly, the terminal can trigger a random access procedure.

[0223] Referring to Figure 2 , Figure 2 is a flowchart of an information transmission method provided by an embodiment of the present application, applied to a core network element, such as Figure 2 As shown in the figure, the method comprises the following steps:

[0224] Step 201: sending first information to a first satellite network device, wherein the first information comprises:

[0225] first terminal identification information;

[0226] downlink signaling;

[0227] downlink data packet information.

[0228] The present application can be applied to a store-and-forward service of a satellite, and the core network element can be, for example, an Access and Mobility Management Function (AMF), a Mobility Management Entity (MME), etc.

[0229] In this step, the core network element can send a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information, and send a second message to the first satellite network device, wherein the second message comprises the first terminal identification information and the downlink data packet information. The downlink signaling can be, for example, a paging message, and the second message can be another downlink message.

[0230] Alternatively, the core network element can also send a first message to the first satellite network device, wherein the first message comprises the first information. The first message can be another downlink message other than a paging message.

[0231] Alternatively, the core network element can also send a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information and the downlink data packet information. The downlink signaling can be, for example, a paging message.

[0232] The first terminal identification information comprises:

[0233] a temporary identifier allocated to the terminal by the first satellite network device, a temporary identifier allocated to the terminal by the first satellite network device and an identifier of the first satellite network device, an identification identifier allocated to the terminal by the core network element (such as GUTI, S-TMSI, etc.) or a permanent identifier of the terminal (such as IMSI).

[0234] In the embodiment of the present application, the first satellite network device can receive the first information of the core network element. Since the first information includes the downlink signaling and the downlink data packet information, the first satellite network device can obtain the downlink data packet information at the same time of obtaining the downlink signaling, and then send the downlink data packet information to the terminal, without waiting for the connection between the core network and the terminal to be established before sending the downlink data packet information to the terminal, thereby reducing the time delay between the terminal and the core network element.

[0235] On the basis of the above-mentioned embodiment, the core network element can further receive a third message sent by a second satellite network device, wherein the third message includes:

[0236] second terminal identification information;

[0237] uplink signaling;

[0238] uplink data packet information.

[0239] The second satellite network device can be a second satellite base station, and the second satellite network device can be the same or different from the first satellite network device.

[0240] The second terminal identification information includes:

[0241] a temporary identifier allocated to the terminal by the first satellite network device, an identification identifier (such as IMSI) allocated to the terminal by the core network element, or a temporary identification identifier (such as S-TMSI) allocated to the terminal by the core network element.

[0242] Optionally, the third message further includes one or more of the following information:

[0243] second terminal location information, used to indicate the location of the terminal;

[0244] service type indication information, used to indicate that the current service type is a satellite storage and forwarding service;

[0245] second maximum time delay information.

[0246] The second terminal location information can be TAI information, TA information, cell identification information such as cell ID, and the like, which is used for the core network element to identify the location of the terminal, so as to facilitate the subsequent finding of the terminal.

[0247] In the embodiment of the present application, the first maximum time delay information is less than the second maximum time delay information, so as to meet the time delay requirement of the terminal. The first maximum time delay information is used to indicate the maximum time length used for paging the terminal, and the second maximum time delay information is used to indicate the maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0248] For example, the first maximum time delay information can be obtained by the core network element according to the maximum time delay information sent by the terminal after deducting the time overhead of uplink, or can be determined by the Mobility Management Entity (MME) according to the requirements of the service, historical information, ephemeris information, etc. If the specified terminal is not paged within the time indicated by the first maximum time delay information, the first satellite network device discards the stored information and only retains the paging failure indication. When the first satellite network device is connected to the core network, the failure information is fed back to the core network.

[0249] If the current service type is a satellite storage and forwarding service, the core network element determines that the downlink feedback for this service can be delivered to another satellite network device that will provide services for the terminal.

[0250] In the embodiments of the present application, the specific implementation form of the second message and the third message is not limited.

[0251] Referring to Figure 3 , Figure 3 is a flowchart of an information transmission method provided by the embodiments of the present application, applied to a second satellite network device, as shown in Figure 3 , comprising the following steps:

[0252] Step 301, sending a second message to a core network element, wherein the second message is used to send first information to a terminal, and the first information comprises:

[0253] First terminal identification information;

[0254] Downlink signaling;

[0255] Downlink data packet information;

[0256] The second message comprises:

[0257] Second terminal identification information;

[0258] Uplink signaling;

[0259] Uplink data packet information.

[0260] The first information further comprises one or more of the following information:

[0261] First terminal position information, used to indicate the area in which the first satellite network device performs paging;

[0262] First maximum time delay information;

[0263] Paging time information, used to indicate the time in which the first satellite network device performs paging;

[0264] The service type indication information is used to indicate that the current service type is a satellite storage and forwarding service.

[0265] The second message further comprises one or more of the following information:

[0266] Second terminal location information, used to indicate the location of the terminal;

[0267] The service type indication information is used to indicate that the current service type is a satellite storage and forwarding service.

[0268] Second maximum time delay information.

[0269] The first terminal location information can be TAI information, TA information, cell ID, and other cell identification information, or geographical location information indicated by coordinates.

[0270] The second terminal location information can be TAI information, TA information, cell ID, and other cell identification information, which is used by the core network element to identify the location of the terminal, so as to facilitate the subsequent search for the terminal.

[0271] In the embodiments of the present application, the first maximum time delay information is less than the second maximum time delay information, so as to meet the time delay requirement of the terminal. The first maximum time delay information is used to indicate the maximum time length used for paging the terminal, and the second maximum time delay information is used to indicate the maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0272] For example, the first maximum time delay information can be obtained by the core network element according to the maximum time delay information sent by the terminal after deducting the time cost of uplink, or can be determined by the MME according to the service requirement, historical information, ephemeris information, etc. If the specified terminal is not paged within the time indicated by the first maximum time delay information, the first satellite network device discards the stored information and only retains the paging failure indication. When the first satellite network device is connected to the core network, the failure information is fed back to the core network.

[0273] The meanings of the first terminal identification information and the second terminal identification information can refer to the descriptions in the foregoing embodiments.

[0274] In the embodiments of the present application, the first satellite network device can receive the first information of the core network element. Since the first information comprises the downlink signaling and the downlink data packet information, the first satellite network device can obtain the downlink data packet information at the same time when obtaining the downlink signaling, so as to send it to the terminal, without waiting for the connection between the core network and the terminal to be established before sending the downlink data packet information to the terminal, thereby reducing the time delay between the terminal and the core network element.

[0275] The implementation process of the present application is described below in combination with different embodiments. In the following embodiments, the satellite base station 1 corresponds to the second satellite network device described above, and the satellite base station 2 corresponds to the first satellite network device described above.

[0276] Referring to Figure 4 , Figure 4 is a schematic diagram of the processing process of an embodiment of the present application, which can include:

[0277] Step 401: The terminal has uplink signaling and / or data to be transmitted, and according to ephemeris information, service type and other information, the terminal selects a suitable satellite base station;

[0278] Step 402: After the satellite base station covers the area where the terminal is located, the terminal establishes a connection with the satellite base station 1 and uploads the information to be transmitted to the satellite base station 1.

[0279] When the terminal transmits signaling and / or data, it can also carry some auxiliary information, for example, indicating the service type of this time to the satellite base station 1, and the maximum time delay that can be accepted for this service. The satellite base station 1 can feed back information reception indication to the terminal, or assign a temporary terminal identifier to the terminal.

[0280] Step 403: The satellite base station 1 receives the signaling and / or data sent by the terminal side, stores the signaling and / or data, and moves to a position where it can establish a connection with the core network while carrying the signaling and / or data.

[0281] Step 404: The satellite base station 1 establishes a connection with the core network and sends the stored signaling and / or data of the terminal to the core network. While sending the signaling and / or data, auxiliary information can also be carried. The auxiliary information can include one or more of the following:

[0282] Second terminal identification information: It can be a temporary identification identifier (S-TMSI) assigned by the core network or a permanent identifier (such as IMSI) of the terminal, or a temporary identifier assigned by the satellite base station 1 for the terminal, or an identifier composed of the temporary identifier assigned by the satellite base station 1 for the terminal and the identifier of the satellite base station 1. The identifier composed of the temporary identifier assigned by the satellite base station 1 for the terminal and the identifier of the satellite base station 1 can be a new identifier.

[0283] Among them, the temporary identification identifier assigned by the core network or the permanent identifier of the terminal is used for the core network to identify the terminal and further process the signaling and / or data of the terminal, and subsequently send to the next satellite base station for paging; the temporary identifier assigned by the satellite base station 1 or the identifier composed of the temporary identifier assigned by the satellite base station 1 for the terminal and the identifier of the satellite base station 1 is mainly used for the core network to send the temporary identifier to the next satellite base station for paging;

[0284] Second terminal location information: indicates the location of the terminal, which can be TAI information, TA information, geographic location information, cell ID and other cell identification information, etc., which is used by the core network to identify the location of the terminal, so as to facilitate subsequent re-finding of the terminal;

[0285] Service type indication information (S&F indication information): indicates that the current service type is a satellite storage and forwarding service, for example, indicating that the current service type is an S&F service, at this time the core network should know that the downlink feedback for this service can be delivered to another satellite that will provide services to the terminal;

[0286] Second maximum delay information: indicates the maximum time length used for sending downlink signaling and / or downlink data packet information to the terminal, that is, indicating that the downlink signaling and / or downlink data packet information should be delivered to the terminal within how long a time.

[0287] Step 405, the core network selects a suitable satellite base station 2 according to ephemeris information, user demand, etc.

[0288] Step 406, the core network sends a downlink message to the satellite base station 2. If the downlink message used is a paging message, it can also carry one or more of the following information:

[0289] Downlink signaling: other non-access layer (Non-Access Stratum, NAS) signaling sent by the core network to the terminal;

[0290] Downlink data packet information: data packet information sent by the core network to the terminal;

[0291] First terminal identification information, which can be a temporary identification (S-TMSI) allocated by the core network or a permanent identification (such as IMSI) of the terminal, or a temporary identification allocated by the satellite base station 1 for the terminal, or an identification composed of a temporary identification allocated by the satellite base station 1 for the terminal and an identification of the satellite base station 1. The identification composed of a temporary identification allocated by the satellite base station 1 for the terminal and an identification of the satellite base station 1 can be a new identification.

[0292] First location information: the location of the terminal obtained by the core network from the satellite base station 1, which can carry coordinate-indicating geographic location information in addition to TAI information, TA information, cell ID and other cell identification information, etc.

[0293] The service type indication information (S&F indication information) is used to indicate that the current service type is satellite storage and forwarding service. The indication information indicates that the satellite base station 2 receives the message, the connection between the terminal and the satellite base station 2 is not established, and the satellite base station 2 needs to perform paging according to the first terminal identification information at a specified time. The indication information can be separate indication information; or implicit indication information, for example, the message received by the satellite base station 2 carries one or more of the above-mentioned first terminal identification information, first location information, and the following first maximum time delay information and paging time information, which means that the satellite base station 2 needs to perform paging according to the first terminal identification information at a specified time;

[0294] The first maximum time delay information is used to indicate the maximum time length for paging the terminal. The first maximum time delay information can be obtained by the core network by deducting the time overhead of the uplink from the maximum time delay information sent by the terminal, or can be determined by the MME according to the service requirement, historical information, ephemeris information, etc. If the terminal provides the second maximum time delay information when accessing the satellite base station 1, the first maximum time delay information provided by the core network to the satellite base station 2 should be less than or equal to the second maximum time delay information, so as to guarantee to meet the time delay requirement of the terminal. If the specified terminal is not paged within the time indicated by the second maximum time delay information, the satellite base station 2 discards the stored information and only retains the paging failure indication, and feeds back the failure information to the core network when the satellite is connected to the core network;

[0295] The paging time information is used to indicate the time for the satellite base station 2 to perform paging. It can be indicated that the terminal is paged at a specified time. The paging time information can be a time point information, for example, 60 min, indicating that the terminal is paged after 60 min from the current time; or a time point information / time information and a duration information, indicating that the terminal is paged from a certain time / after a specified time from the current time, and the duration of the paging is indicated by the duration (for example, the paging time is 30 min, and the duration is 30 min); or two time information, indicating the start time and the end time of the paging.

[0296] The above-mentioned time information can be obtained by the core network according to the ephemeris information of the service satellite and the location information of the terminal.

[0297] In step 407, the satellite base station stores the information received from the core network side, and carries the information to a position where the connection with the terminal can be established.

[0298] Referring to Figure 5 , Figure 5 is a processing process schematic diagram of the embodiment of the application, which can include:

[0299] Step 501, the terminal has uplink signaling and / or data to be transmitted, and according to ephemeris information, service type and other information, the terminal selects a suitable satellite base station;

[0300] Step 502, after the satellite base station covers the area where the terminal is located, the terminal establishes a connection with the satellite base station 1 and uploads the information to be transmitted to the satellite base station 1.

[0301] When the terminal transmits signaling and / or data, it can also carry some auxiliary information, for example, indicating the service type of this time to the satellite base station 1, and the maximum time delay that can be accepted for this service. The satellite base station 1 can feed back the information receiving indication to the terminal, or assign a temporary terminal identifier to the terminal.

[0302] Step 503, the satellite base station 1 receives the signaling and / or data sent by the terminal side, stores the signaling and / or data, and moves to a position where it can establish a connection with the core network.

[0303] Step 504, the satellite base station 1 establishes a connection with the core network and sends the stored signaling and / or data of the terminal to the core network. While sending the signaling and / or data, auxiliary information can also be carried. The auxiliary information can include one or more of the following:

[0304] Second terminal identification information: It can be a temporary identification identifier (S-TMSI) allocated by the core network or a permanent identifier (such as IMSI) of the terminal, or a temporary identifier allocated by the satellite base station 1 for the terminal, or an identifier composed of the temporary identifier allocated by the satellite base station 1 for the terminal and the identifier of the satellite base station 1. The identifier composed of the temporary identifier allocated by the satellite base station 1 for the terminal and the identifier of the satellite base station 1 can be a new identifier.

[0305] Among them, the temporary identification identifier allocated by the core network or the permanent identifier of the terminal is used for the core network to identify the terminal and further process the signaling and / or data of the terminal, and subsequently send to the next satellite base station for paging; the temporary identifier allocated by the satellite base station 1 or the identifier composed of the temporary identifier allocated by the satellite base station 1 for the terminal and the identifier of the satellite base station 1 is mainly used for the core network to send the temporary identifier to the next satellite base station for paging;

[0306] Second terminal location information: indicating the location of the terminal, which can be TAI information, TA information, geographic location information, cell ID and other cell identification information, etc., which is used for the core network to identify the location of the terminal and facilitate subsequent finding of the terminal again;

[0307] Service type indication information (S&F indication information): indicating that the current service type is satellite storage and forwarding service, for example, indicating "the current service type is S&F service", at this time the core network should know that the downlink feedback for this service can be delivered to another satellite which will provide service for the terminal;

[0308] Second maximum delay information: indicating the maximum time length used for sending downlink signaling and / or downlink data packet information to the terminal, that is, indicating how long the downlink signaling and / or downlink data packet information should be delivered to the terminal.

[0309] Step 505: the core network selects a suitable satellite base station 2 according to ephemeris information, user's demand, etc.

[0310] Step 506: the core network sends downlink message to the satellite base station 2. If the downlink message used is DL NASTRASPORT (downlink NAS transport) message or initial context setup request, the message also needs to carry one or more of the following information:

[0311] Downlink signaling: other NAS signaling sent by the core network to the terminal;

[0312] Downlink data packet information: data packet information sent by the core network to the terminal;

[0313] First terminal identification information, which can be a temporary identification mark (S-TMSI) allocated by the core network or a permanent identification (such as IMSI) of the terminal, can also be a temporary identification allocated by the satellite base station 1 for the terminal, and can also be an identification composed of the temporary identification allocated by the satellite base station 1 for the terminal and the identification of the satellite base station 1. The identification composed of the temporary identification allocated by the satellite base station 1 for the terminal and the identification of the satellite base station 1 can be a new identification.

[0314] First location information: the location of the terminal obtained by the core network from the satellite base station 1, in addition to TAI information, TA information, cell ID and other cell identification information, it can also carry coordinate indicating geographical position information;

[0315] The service type indication information (S&F indication information) is used to indicate that the current service type is satellite storage and forwarding service. The indication information indicates that the satellite base station 2 receives the message, the connection between the terminal and the satellite base station 2 is not established, and the satellite base station 2 needs to be paged according to the first terminal identification information at a specified time. The indication information can be separate indication information; or implicit indication information, for example, the message received by the satellite base station 2 carries one or more of the above-mentioned first terminal identification information, first location information, and the following first maximum time delay information, paging time information, which means that the satellite base station 2 needs to be paged according to the first terminal identification information at a specified time;

[0316] The first maximum time delay information is used to indicate the maximum time length for paging the terminal. The first maximum time delay information can be obtained by the core network by deducting the time overhead of the uplink from the maximum time delay information sent by the terminal, or can be determined by the MME according to the service demand, historical information, ephemeris information, etc. If the terminal provides the second maximum time delay information when accessing the satellite base station 1, the first maximum time delay information provided by the core network to the satellite base station 2 should be less than or equal to the second maximum time delay information, so as to guarantee to meet the time delay requirement of the terminal. If the specified terminal is not paged within the time indicated by the second maximum time delay information, the satellite base station 2 discards the stored information and only retains the paging failure indication, and feeds back the failure information to the core network when the satellite is connected to the core network;

[0317] The paging time information is used to indicate the time when the satellite base station 2 pages. It can be indicated that the terminal is paged at a specified time. The paging time information can be a time point information, for example, 60min, indicating that the terminal is paged after 60min from the current time; or a time point information / time information and a duration information, indicating that the terminal is paged from a certain time / after a specified time from the current time, and the paging duration is indicated by the duration (for example, paging for 30 minutes, and the duration is 30min); or two time information, indicating the start time and end time of paging.

[0318] The above-mentioned time information can be obtained by the core network according to the ephemeris information of the service satellite and the location information of the terminal.

[0319] The above-mentioned time information can be obtained by the core network according to the ephemeris information of the service satellite and the location information of the terminal

[0320] Step 507, the satellite base station stores the information received from the core network side, and stores the information, and carries the information to a position where the connection with the terminal can be established.

[0321] In Figure 4 andFigure 5 Based on the embodiments of the application, the satellite base station 2 can initiate paging to the terminal, and the stored downlink signaling and downlink data packet information sent by the core network to the terminal can be directly carried in the air interface paging.

[0322] Alternatively, the satellite base station 2 sends a paging message to the terminal to initiate a paging process, and a paging identifier such as s-TMSI and IMSI can be used. After receiving the paging, the terminal initiates a random access process. After establishing a connection with the satellite base station 2, the satellite base station 2 sends the downlink signaling and downlink data packet information to the terminal in another downlink message. In addition, if the satellite base station 2 uses IMSI paging, the satellite base station 2 can carry additional indication information (i.e., the first indication) in the paging sent to the terminal, indicating that this time of using IMSI paging is to find the terminal to send the stored information, and the terminal needs to trigger a random access process instead of triggering a registration process in the conventional process.

[0323] Optionally, Figure 4 and Figure 5 In the embodiments shown in FIGS. 4 and 5, steps 401-404 or steps 501-504 can also be omitted. If the core network has downlink signaling and downlink data packet information for a specified terminal, the core network can directly trigger a satellite base station 2 to send the downlink signaling and downlink data packet information at this time, and the first terminal identification information is a conventional paging identifier such as s-TMSI and IMSI. After receiving the paging, the satellite base station 2 can initiate paging to the terminal, and the stored downlink signaling and downlink data packet information sent by the core network to the terminal can be directly carried in the air interface paging. Alternatively, the satellite base station 2 sends a paging message to the terminal to initiate a paging process, and a paging identifier such as s-TMSI and IMSI can be used. After receiving the paging, the terminal initiates a random access process. After establishing a connection with the satellite base station 2, the satellite base station 2 sends the downlink signaling and downlink data packet information to the terminal in another downlink message. In addition, if the satellite base station 2 uses IMSI paging, the satellite base station 2 can carry additional indication information (i.e., the first indication) in the paging sent to the terminal, indicating that this time of using IMSI paging is to find the terminal to send the stored information, and the terminal needs to trigger a random access process instead of triggering a registration process in the conventional process.

[0324] In the prior art, the terminal is usually paged first, and the downlink signaling is sent after the connection is established, and the downlink data packet information carried for the terminal in the downlink signaling is not supported. It can be seen from the above description that in the S&F forwarding scenario, the downlink data packet information can be sent at the same time as the downlink signaling is sent, thereby reducing the interaction delay between the terminal and the core network. Meanwhile, the existing DL NAS TRANSPORT message or initial context Setup request message is sent in the case that the terminal and the core network establish a connection, and in the embodiments of the present application, the two messages can be used when the terminal and the core network do not establish a connection. Meanwhile, through the service type indication information, the satellite base station can also identify that the current service is a satellite storage and forwarding service, so that the data can be correctly transmitted to the terminal.

[0325] The technical solutions provided by the embodiments of the present application can be applied to various systems, especially 4G and 5G systems. For example, the applicable systems can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile telecommunication system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system, and the like. Among the various systems, there are terminal devices and network devices. The system can also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), and the like.

[0326] The terminal device involved in the embodiments of the present application can be a device providing voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device can also be different, for example, in the 5G and 4G systems, the terminal device can be called user equipment (terminal). The wireless terminal device can communicate with one or more core networks (CN) through a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or called "cellular" phone) and a computer with a mobile terminal device, for example, it can be a portable, pocket, handheld, built-in computer or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal device can also be called system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, which is not limited in the embodiments of the present application.

[0327] As shown in Figure 6 The information transmission device of the embodiments of the present application is applied to a first satellite network device, which includes a processor 600 for reading programs in a memory 620 and executing the following processes:

[0328] receiving first information sent by a core network element, wherein the first information includes:

[0329] first terminal identification information;

[0330] downlink signaling;

[0331] downlink data packet information.

[0332] The transceiver 610 is configured to receive and transmit data under the control of the processor 600.

[0333] In some embodiments, the bus architecture can include any number of interconnecting buses and bridges, depending on the specific application of the processor 600 and the overall design constraints. The bus architecture can link together various circuits such as the processor 600, the memory 620, and various other circuits including peripheral devices, voltage regulators, and power management circuits, which are well-known in the art and will not be described further. Figure 6 The bus interface provides an interface to the bus architecture. The transceiver 610 can be a plurality of elements including a transmitter and a receiver, which are configured to communicate with various other apparatuses over a transmission medium. The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in executing operations.

[0334] The processor 600 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also be implemented with a multi-core architecture.

[0335] The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in executing operations.

[0336] Optionally, the first information sent by the core network element includes one or more of the following information:

[0337] Optionally, the first information sent by the core network element includes one or more of the following information:

[0338] Optionally, the first information sent by the core network element includes one or more of the following information:

[0339] Optionally, the first information sent by the core network element includes one or more of the following information:

[0340] Optionally, the first information further includes one or more of the following information:

[0341] The first terminal position information is used for indicating an area in which the first satellite network device performs paging.

[0342] The first maximum time delay information;

[0343] The paging time information is used for indicating a time in which the first satellite network device performs paging.

[0344] The service type indication information is used for indicating that a current service type is a satellite storage and forwarding service.

[0345] Optionally, the processor 600 is further configured to read a computer program in the memory and perform the following operations:

[0346] If it is determined that the first message comprises one or more of the first terminal identification information, the first terminal position information, the first maximum time delay information, the paging time information and the service type indication information, it is determined that a current service type is a satellite storage and forwarding service.

[0347] Optionally, the processor 600 is further configured to read a computer program in the memory and perform the following operations:

[0348] According to the first message, a paging message is sent to the terminal, wherein the paging message comprises the downlink signaling and the downlink data packet information.

[0349] Optionally, the processor 600 is further configured to read a computer program in the memory and perform the following operations:

[0350] According to the first message, a paging message is sent to the terminal.

[0351] After a connection with the terminal is established, the downlink signaling and the downlink data packet information are sent to the terminal.

[0352] Optionally, the paging message comprises a first indication, and the first indication is used for indicating that the terminal initiates a random access procedure with the first satellite network device.

[0353] Optionally, the first terminal identification information comprises:

[0354] A temporary identifier allocated by the first satellite network device for the terminal, an identifier composed of a temporary identifier allocated by the first satellite network device for the terminal and an identifier of the first satellite network device, an identification identifier allocated by the core network element for the terminal or a permanent identifier of the terminal.

[0355] It should be noted that the above device provided by the embodiments of the present application can realize all the method steps achieved by the above method embodiments, and achieve the same technical effects. Here, the same parts and beneficial effects of the method embodiments in this embodiment will not be described in detail.

[0356] As shown in Figure 7 The information transmission device of the embodiments of the present application is applied to a core network element, and includes a processor 700 for reading programs in a memory 720 and executing the following processes:

[0357] sending first information to the first satellite network device, the first information including:

[0358] first terminal identification information;

[0359] downlink signaling;

[0360] downlink data packet information.

[0361] The transceiver 710 is used to receive and send data under the control of the processor 700.

[0362] In the above Figure 7 , the bus architecture can include any number of interconnected buses and bridges, which are linked together by various circuits of the processor 700 representing one or more processors and the memory 720 representing memory. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described further herein. The bus interface provides an interface. The transceiver 710 can be multiple elements, i.e., including a transmitter and a receiver, which provide units for communicating with various other devices on a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.

[0363] The processor 700 can be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0364] The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.

[0365] Optionally, the sending the first information to the first satellite network device comprises:

[0366] sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information, and sending a second message to the first satellite network device, wherein the second message comprises the first terminal identification information and the downlink data packet information;

[0367] or

[0368] sending a first message to the first satellite network device, wherein the first message comprises the first information; or

[0369] sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information and the downlink data packet information.

[0370] Optionally, the first information further comprises one or more of the following information:

[0371] first terminal location information, used to instruct the first satellite network device to perform paging in a region;

[0372] first maximum time delay information;

[0373] paging time information, used to instruct the first satellite network device to perform paging at a time;

[0374] service type indication information, used to indicate that the current service type is satellite storage and forwarding service.

[0375] Optionally, the processor 700 is further configured to read the computer program in the memory and perform the following operations:

[0376] receiving a third message sent by a second satellite network device, wherein the third message comprises:

[0377] second terminal identification information;

[0378] uplink signaling;

[0379] uplink data packet information.

[0380] Optionally, the third message further comprises one or more of the following information:

[0381] second terminal location information, used to indicate a location where the terminal is located;

[0382] service type indication information, used to indicate that the current service type is satellite storage and forwarding service;

[0383] second maximum time delay information.

[0384] Optionally, the first maximum time delay information is less than the second maximum time delay information.

[0385] The first maximum time delay information is used to indicate a maximum time length used for paging the terminal.

[0386] The second maximum time delay information is used to indicate a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0387] Optionally, the first terminal identification information and / or the second terminal identification information comprises:

[0388] The temporary identifier allocated by the first satellite network device for the terminal, an identifier composed of the temporary identifier allocated by the first satellite network device for the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network element for the terminal, or the permanent identifier of the terminal.

[0389] It should be noted that the above apparatus provided by the embodiments of the present application can realize all the method steps achieved by the above method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0390] As shown in Figure 8 The information transmission apparatus of the embodiments of the present application is applied to a second satellite network device, and comprises a processor 800 for reading programs in a memory 820 and performing the following processes:

[0391] sending a second message to a core network element, wherein the second message is used to send first information to a terminal, and the first information comprises:

[0392] first terminal identification information;

[0393] downlink signaling;

[0394] downlink data packet information;

[0395] The second message comprises:

[0396] second terminal identification information;

[0397] uplink signaling;

[0398] uplink data packet information.

[0399] A transceiver 810 is used to receive and send data under the control of the processor 800.

[0400] Optionally, the first terminal identification information and / or the second terminal identification information comprises: Figure 8In particular embodiments, the bus architecture can include any number of interconnecting buses and bridges, depending on the specific application of the processor 800 and the overall design constraints. The bus architecture can link together various circuits such as one or more processors represented by the processor 800, the various circuits of the memory represented by the memory 820, and can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, all of which are well known in the art, and therefore, will not be described further. A bus interface provides the interface for the bus architecture. The transceiver 810 can be a plurality of elements including a transmitter and a receiver, which provides the means for communicating with various other apparatus over a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in executing its operations.

[0401] The processor 800 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), or the processor can be implemented using a multi-core architecture.

[0402] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in executing its operations.

[0403] Optionally, the first information further comprises one or more of the following information:

[0404] First terminal location information, used to indicate a region for paging by the first satellite network device;

[0405] First maximum time delay information;

[0406] Paging time information, used to indicate a time for paging by the first satellite network device;

[0407] Service type indication information, used to indicate that the current service type is satellite storage and forwarding service;

[0408] And / or

[0409] The second message further comprises one or more of the following information:

[0410] Second terminal location information, used to indicate a location where the terminal is located;

[0411] Service type indication information, used to indicate that the current service type is satellite storage and forwarding service;

[0412] Second maximum time delay information.

[0413] Optionally, the first maximum time delay information is less than the second maximum time delay information.

[0414] The first maximum time delay information is used to indicate a maximum time length used for paging the terminal.

[0415] The second maximum time delay information is used to indicate a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0416] Optionally, the first terminal identification information and / or the second terminal identification information comprises:

[0417] a temporary identifier allocated to the terminal by the first satellite network device, an identifier composed of the temporary identifier allocated to the terminal by the first satellite network device and an identifier of the first satellite network device, an identification identifier allocated to the terminal by the core network element, or a permanent identifier of the terminal.

[0418] It should be noted that the above apparatus provided by the embodiments of the present application can realize all the method steps achieved by the above method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail herein.

[0419] As shown in Figure 9 The information transmission apparatus of the embodiments of the present application is applied to a first satellite network device, and comprises:

[0420] The first receiving unit 901 is configured to receive first information sent by a core network element, wherein the first information comprises:

[0421] first terminal identification information;

[0422] downlink signaling;

[0423] downlink data packet information.

[0424] Optionally, the first receiving unit is further configured to:

[0425] receive first information and second information sent by the core network element, wherein the first information is the downlink signaling and comprises the first terminal identification information, and the second information comprises the first terminal identification information and the downlink data packet information; or

[0426] receive first information sent by the core network element, wherein the first information comprises the first information; or

[0427] receive first information sent by the core network element, wherein the first information is the downlink signaling and comprises the first terminal identification information and the downlink data packet information.

[0428] Optionally, the first information further comprises one or more of the following information:

[0429] First terminal position information, used for instructing the first satellite network device to perform paging in a region;

[0430] First maximum time delay information;

[0431] Paging time information, used for instructing the first satellite network device to perform paging at a time;

[0432] Service type indication information, used for indicating that the current service type is a satellite storage and forwarding service.

[0433] Optionally, the apparatus can further comprise:

[0434] A first determining unit, configured to determine that the current service type is a satellite storage and forwarding service if it is determined that the first message comprises one or more of the first terminal identification information, the first terminal position information, the first maximum time delay information, the paging time information, and the service type indication information.

[0435] Optionally, the apparatus can further comprise:

[0436] A first sending unit, configured to send a paging message to the terminal according to the first message, wherein the paging message comprises the downlink signaling and the downlink data packet information.

[0437] Optionally, the apparatus can further comprise:

[0438] A second sending unit, configured to send a paging message to the terminal according to the first message;

[0439] A third sending unit, configured to send the downlink signaling and the downlink data packet information to the terminal after a connection is established with the terminal.

[0440] Optionally, the paging message comprises a first indication, and the first indication is used to instruct the terminal to initiate a random access procedure with the first satellite network device.

[0441] Optionally, the first terminal identification information comprises:

[0442] A temporary identifier allocated by the first satellite network device for the terminal, an identifier composed of a temporary identifier allocated by the first satellite network device for the terminal and an identifier of the first satellite network device, an identification identifier allocated by the core network element for the terminal, or a permanent identifier of the terminal.

[0443] It should be noted that the above device provided by the embodiments of the present application can realize all the method steps achieved by the method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0444] As shown in Figure 10 The information transmission device of the embodiments of the present application is applied to a core network element and includes:

[0445] The first sending unit 1001 is configured to send first information to a first satellite network device, wherein the first information includes:

[0446] First terminal identification information;

[0447] Downlink signaling;

[0448] Downlink data packet information.

[0449] Optionally, the first sending unit is further configured to:

[0450] send a first message to the first satellite network device, wherein the first message is the downlink signaling and includes the first terminal identification information, and send a second message to the first satellite network device, wherein the second message includes the first terminal identification information and the downlink data packet information;

[0451] Or

[0452] send a first message to the first satellite network device, wherein the first message includes the first information; or

[0453] send a first message to the first satellite network device, wherein the first message is the downlink signaling and includes the first terminal identification information and the downlink data packet information.

[0454] Optionally, the first information further includes one or more of the following information:

[0455] First terminal position information, used to indicate an area for paging by the first satellite network device;

[0456] First maximum time delay information;

[0457] Paging time information, used to indicate a time for paging by the first satellite network device;

[0458] Service type indication information, used to indicate that a current service type is a satellite storage and forwarding service.

[0459] Optionally, the device can further include:

[0460] The first receiving unit is configured to receive a third message sent by a second satellite network device, wherein the third message comprises:

[0461] Second terminal identification information;

[0462] Uplink signaling;

[0463] Uplink data packet information.

[0464] Optionally, the third message further comprises one or more of the following information:

[0465] Second terminal location information, used for indicating a location where the terminal is located;

[0466] Service type indication information, used for indicating that a current service type is a satellite storage and forwarding service;

[0467] Second maximum time delay information.

[0468] Optionally, the first maximum time delay information is less than the second maximum time delay information.

[0469] The first maximum time delay information is used for indicating a maximum time length used for paging the terminal.

[0470] The second maximum time delay information is used for indicating a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0471] Optionally, the first terminal identification information and / or the second terminal identification information comprises:

[0472] A temporary identifier allocated to the terminal by the first satellite network device, a temporary identifier allocated to the terminal by the first satellite network device and an identifier of the first satellite network device, an identification identifier allocated to the terminal by the core network element, or a permanent identifier of the terminal.

[0473] It is to be noted that the above apparatus provided by the embodiments of the present application can realize all the method steps achieved by the above method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail herein.

[0474] As shown in Figure 11 The information transmission apparatus of the embodiments of the present application is applied to a second satellite network device, and comprises:

[0475] The first sending unit 1101 is configured to send a second message to a core network element, wherein the second message is used for sending first information to a terminal, and the first information comprises:

[0476] First terminal identification information;

[0477] downlink signaling;

[0478] downlink data packet information;

[0479] the second message comprises:

[0480] second terminal identification information;

[0481] uplink signaling;

[0482] uplink data packet information.

[0483] Optionally, the first information further comprises one or more of the following information:

[0484] first terminal location information, used to instruct the first satellite network device to perform paging in a region;

[0485] first maximum time delay information;

[0486] paging time information, used to instruct the first satellite network device to perform paging at a time;

[0487] service type indication information, used to indicate that the current service type is a satellite storage and forwarding service;

[0488] and / or

[0489] the second message further comprises one or more of the following information:

[0490] second terminal location information, used to indicate the location where the terminal is located;

[0491] service type indication information, used to indicate that the current service type is a satellite storage and forwarding service;

[0492] second maximum time delay information.

[0493] Optionally, the first maximum time delay information is less than the second maximum time delay information;

[0494] The first maximum time delay information is used to indicate a maximum time length used for paging the terminal.

[0495] The second maximum time delay information is used to indicate a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

[0496] Optionally, the first terminal identification information and / or the second terminal identification information comprises:

[0497] The temporary identifier allocated by the first satellite network device for the terminal, an identifier composed of the temporary identifier allocated by the first satellite network device for the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network network element for the terminal, or the permanent identifier of the terminal.

[0498] It should be noted that the above apparatus provided by the embodiments of the present application can realize all the method steps achieved by the above method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail herein.

[0499] It should be noted that the division of units in the embodiments of the present application is illustrative, and is merely a logical functional division. In actual implementation, another division mode can be used. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically independently, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0500] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present application, essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a computer software product stored in a storage medium. The computer software product includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0501] The embodiments of the present application also provide a communication device, including a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor implements the steps in the information transmission method when executing the program.

[0502] The embodiments of the present application also provide a computer program product, including computer instructions executable by a processor to implement the processes of the above information transmission method embodiments and achieve the same technical effects. To avoid repetition, details will not be described here.

[0503] The embodiment of the present application further provides a processor-readable storage medium, and the processor-readable storage medium stores a program, the program is executed by a processor to realize each process of the information transmission method embodiment, and the same technical effects can be achieved, and details are not repeated here. The readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO) and the like), an optical memory (such as a CD, a DVD, a BD, a HVD and the like), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid state disk (SSD)) and the like.

[0504] It should be noted that in this document, the term "comprising" or "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0505] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by means of software and necessary general hardware platform, of course, it can also be realized by hardware, but in many cases, the former is a better embodiment. According to such understanding, the technical solutions of the present application can be embodied in the form of software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a plurality of instructions to make a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the method described in each embodiment of the present application.

[0506] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims.

Claims

1. A method of information transmission, characterized in that, The method applied to a first satellite network device comprises: receiving first information sent by a core network element, wherein the first information comprises: first terminal identification information; downlink signaling; downlink data packet information.

2. The method of claim 1, wherein, The receiving first information sent by the core network element comprises: receiving first information and second information sent by the core network element, wherein the first information is the downlink signaling and comprises the first terminal identification information, and the second information comprises the first terminal identification information and the downlink data packet information; or receiving first information sent by the core network element, wherein the first information comprises the first terminal identification information, the downlink signaling and the downlink data packet information. The first information further comprises one or more of the following information:

3. The method of claim 2, wherein, first terminal location information, used for indicating an area for paging by the first satellite network device; first maximum time delay information; paging time information, used for indicating a time for paging by the first satellite network device; service type indication information, used for indicating that a current service type is a satellite storage and forwarding service. The method further comprises:

4. The method of claim 3, wherein, if it is determined that the first information comprises one or more of the first terminal identification information, the first terminal location information, the first maximum time delay information, the paging time information and the service type indication information, it is determined that a current service type is a satellite storage and forwarding service. The method further comprises:

5. The method according to any one of claims 2 to 4, characterized in that, sending a paging message to the terminal according to the first information, wherein the paging message comprises the downlink signaling and the downlink data packet information. The method further comprises:

6. The method according to any one of claims 2-4, characterized in that, sending a paging message to the terminal according to the first information; after a connection is established with the terminal, sending the downlink signaling and the downlink data packet information to the terminal. The paging message comprises a first indication, which is used for indicating that the terminal initiates a random access procedure with the first satellite network device.

7. The method of claim 6, wherein, The first terminal identification information comprises:

8. The method of claim 1, wherein, a temporary identifier allocated by the first satellite network device to the terminal, an identifier composed of a temporary identifier allocated by the first satellite network device to the terminal and an identifier of the first satellite network device, an identification identifier allocated by the core network element to the terminal or a permanent identifier of the terminal. The method applied to a core network element comprises:

9. An information transmission method characterized by comprising: sending first information to a first satellite network device, wherein the first information comprises: first terminal identification information; downlink signaling; downlink data packet information. The sending first information to the first satellite network device comprises:

10. The method of claim 9, wherein, sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information, and sending a second message to the first satellite network device, wherein the second message comprises the first terminal identification information and the downlink data packet information; or sending a first message to the first satellite network device, wherein the first message comprises the first information; or sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information and the downlink data packet information. ​ sending a first message to the first satellite network device, wherein the first message is the downlink signaling and includes the first terminal identification information and the downlink data packet information.

11. The method of claim 9, wherein, The first information further includes one or more of the following information: first terminal location information, used to indicate a region in which the first satellite network device performs paging; first maximum time delay information; paging time information, used to indicate a time in which the first satellite network device performs paging; service type indication information, used to indicate that a current service type is a satellite store-and-forward service.

12. The method of claim 11, wherein, The method further includes: receiving a third message sent by a second satellite network device, wherein the third message includes: second terminal identification information; uplink signaling; uplink data packet information.

13. The method of claim 12, wherein, The third message further includes one or more of the following information: second terminal location information, used to indicate a location in which the terminal is located; service type indication information, used to indicate that a current service type is a satellite store-and-forward service; second maximum time delay information.

14. The method of claim 13, wherein, The first maximum time delay information is less than the second maximum time delay information; The first maximum time delay information is used to indicate a maximum time length used for paging the terminal. The second maximum time delay information is used to indicate a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

15. The method of claim 12, wherein, The first terminal identification information and / or the second terminal identification information includes: a temporary identifier allocated to the terminal by the first satellite network device, an identifier composed of a temporary identifier allocated to the terminal by the first satellite network device and an identifier of the first satellite network device, an identification identifier allocated to the terminal by the core network element, or a permanent identifier of the terminal.

16. An information transmission method, characterized by, The method applied to a second satellite network device includes: sending a second message to a core network element, wherein the second message is used to send first information to a terminal, and the first information includes: first terminal identification information; downlink signaling; downlink data packet information. The second message includes: second terminal identification information; uplink signaling; uplink data packet information.

17. The method of claim 16, wherein: The first information further includes one or more of the following information: first terminal location information, used to indicate a region in which the first satellite network device performs paging; first maximum time delay information; paging time information, used to indicate a time in which the first satellite network device performs paging; service type indication information, used to indicate that a current service type is a satellite store-and-forward service; and / or The second message further includes one or more of the following information: second terminal location information, used to indicate a location in which the terminal is located; service type indication information, used to indicate that a current service type is a satellite store-and-forward service; second maximum time delay information.

18. The method of claim 17, wherein, The first maximum time delay information is less than the second maximum time delay information; The first maximum time delay information is used to indicate a maximum time length used for paging the terminal. The second maximum time delay information is used to indicate a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

19. The method of claim 16, wherein, The first terminal identification information and / or the second terminal identification information comprises: The temporary identifier allocated to the terminal by the first satellite network device, an identifier composed of the temporary identifier allocated to the terminal by the first satellite network device and the identifier of the first satellite network device, the identification identifier allocated to the terminal by the core network element, or the permanent identifier of the terminal.

20. An information transmission apparatus characterized by comprising: The first satellite network device comprises a memory, a transceiver, and a processor: The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: Receive the first information sent by the core network element, wherein the first information comprises: First terminal identification information; Downlink signaling; Downlink data packet information.

21. The apparatus of claim 20, wherein, The first information sent by the core network element comprises: Receive the first message and the second message sent by the core network element, wherein the first message is the downlink signaling and comprises the first terminal identification information, and the second message comprises the first terminal identification information and the downlink data packet information; or Receive the first message sent by the core network element, and the first message comprises the first information; or Receive the first message sent by the core network element, wherein the first message is the downlink signaling and comprises the first terminal identification information and the downlink data packet information.

22. The apparatus of claim 21, wherein, The first information further comprises one or more of the following information: First terminal location information, used to indicate the area in which the first satellite network device performs paging; First maximum time delay information; Paging time information, used to indicate the time in which the first satellite network device performs paging; Service type indication information, used to indicate that the current service type is satellite storage and forwarding service.

23. The apparatus of claim 22, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: If it is determined that the first message comprises one or more of the first terminal identification information, the first terminal location information, the first maximum time delay information, the paging time information, and the service type indication information, it is determined that the current service type is satellite storage and forwarding service.

24. The apparatus of any one of claims 21-23, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: According to the first message, send a paging message to the terminal, wherein the paging message comprises the downlink signaling and the downlink data packet information.

25. The apparatus of any one of claims 21-23, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: According to the first message, send a paging message to the terminal; After establishing a connection with the terminal, send the downlink signaling and the downlink data packet information to the terminal.

26. The apparatus of claim 25, wherein, The paging message comprises a first indication, and the first indication is used to instruct the terminal to initiate a random access procedure with the first satellite network device.

27. The apparatus of claim 25, wherein, The first terminal identification information comprises: The temporary identifier allocated by the first satellite network device for the terminal, the identifier composed of the temporary identifier allocated by the first satellite network device for the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network element for the terminal, or the permanent identifier of the terminal.

28. An information transmission apparatus, characterized by comprising: Applied to a core network element, comprising: a memory, a transceiver, a processor: The memory is used for storing a computer program; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer program in the memory and performing the following operations: Sending first information to a first satellite network device, wherein the first information comprises: First terminal identification information; Downlink signaling; Downlink data packet information.

29. The apparatus of claim 28, wherein, The first information sent to the first satellite network device comprises: Sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information, and sending a second message to the first satellite network device, wherein the second message comprises the first terminal identification information and the downlink data packet information; Or Sending a first message to the first satellite network device, wherein the first message comprises the first information; or Sending a first message to the first satellite network device, wherein the first message is the downlink signaling and comprises the first terminal identification information and the downlink data packet information.

30. The apparatus of claim 29, wherein, The first information further comprises one or more of the following information: First terminal location information, used for indicating an area for paging by the first satellite network device; First maximum time delay information; Paging time information, used for indicating a time for paging by the first satellite network device; Service type indication information, used for indicating that the current service type is satellite storage and forwarding service.

31. The apparatus of claim 30, wherein, The processor is further used for reading the computer program in the memory and performing the following operations: Receiving a third message sent by a second satellite network device, wherein the third message comprises: Second terminal identification information; Uplink signaling; Uplink data packet information.

32. The apparatus of claim 31, wherein, The third message further comprises one or more of the following information: Second terminal location information, used for indicating a location where the terminal is located; Service type indication information, used for indicating that the current service type is satellite storage and forwarding service; Second maximum time delay information.

33. The apparatus of claim 32, wherein, The first maximum time delay information is less than the second maximum time delay information; The first maximum time delay information is used for indicating a maximum time length used for paging the terminal; The second maximum time delay information is used for indicating a maximum time length used for sending the downlink signaling and / or the downlink data packet information to the terminal.

34. The apparatus of claim 31, wherein, The first terminal identification information and / or the second terminal identification information comprises: The temporary identifier allocated by the first satellite network device for the terminal, the identifier composed of the temporary identifier allocated by the first satellite network device for the terminal and the identifier of the first satellite network device, the identification identifier allocated by the core network element for the terminal, or the permanent identifier of the terminal.

35. An information transmission apparatus, characterized by comprising: Applied to a second satellite network device, comprising: a memory, a transceiver, a processor: a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations: sending a second message to a core network element, wherein the second message is used to send first information to a terminal, and the first information comprises: first terminal identification information; downlink signaling; downlink packet information; the second message comprises: second terminal identification information; uplink signaling; uplink packet information.

36. The device of claim 35, wherein, The first information further comprises one or more of the following information: first terminal location information, used to indicate an area for the first satellite network device to perform paging; first maximum time delay information; paging time information, used to indicate a time for the first satellite network device to perform paging; service type indication information, used to indicate that the current service type is satellite storage and forwarding service; and / or The second message further comprises one or more of the following information: second terminal location information, used to indicate a location where the terminal is located; service type indication information, used to indicate that the current service type is satellite storage and forwarding service; second maximum time delay information. The first maximum time delay information is less than the second maximum time delay information; 37. The device of claim 36, wherein, The first maximum time delay information is used to indicate a maximum time length used for paging the terminal; The second maximum time delay information is used to indicate a maximum time length used for sending the downlink signaling and / or the downlink packet information to the terminal. The first terminal identification information and / or the second terminal identification information comprises:

38. The apparatus of claim 35, wherein, a temporary identifier allocated by the first satellite network device to the terminal, an identifier composed of a temporary identifier allocated by the first satellite network device to the terminal and an identifier of the first satellite network device, an identification identifier allocated by the core network element to the terminal, or a permanent identifier of the terminal. applied to a first satellite network device, comprising:

39. An information transmission apparatus, characterized by comprising: a first receiving unit configured to receive first information sent by a core network element, wherein the first information comprises: first terminal identification information; downlink signaling; downlink packet information. applied to a core network element, comprising:

40. An information transmission apparatus, characterized by comprising: a first sending unit configured to send first information to a first satellite network device, wherein the first information comprises: first terminal identification information; downlink signaling; downlink packet information. applied to a second satellite network device, comprising:

41. An information transmission apparatus, characterized by comprising: a first sending unit configured to send a second message to a core network element, wherein the second message is used to send first information to a terminal, and the first information comprises: first terminal identification information; downlink signaling; downlink packet information; the second message comprises: second terminal identification information; uplink signaling; uplink packet information. The processor readable storage medium stores a computer program, and the computer program is used to make the processor execute the method according to any one of claims 1 to 19.

42. A processor-readable storage medium, comprising: including computer instructions, which are executed by the processor to implement the method according to any one of claims 1 to 19.

43. A computer program product, characterised in that, ​

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