Satellite communication method, satellite base station, satellite communication device and system

Abstract

The embodiments of the present application provide a satellite communication method, a satellite base station, a satellite communication device and a system. The user equipment learns through system information that the currently connected satellite base station is a backpack satellite base station. After establishing the RRC connection, the user equipment actively reports the user equipment capability information to the backpack satellite base station. The backpack satellite base station obtains the user equipment capability information from the user equipment to avoid the core network equipment from transmitting the user equipment capability information to the backpack satellite base station through the satellite link, thereby reducing the amount of signaling transmitted by the satellite link. After obtaining the user equipment capability information, the backpack satellite base station configures wireless parameters for the user equipment according to the user equipment capability information, and the user equipment can use the wireless configuration to transmit data.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless mobile communication technology, and in particular, to a satellite communication method, a satellite base station, a satellite communication device and a system. Background Art

[0002] In the existing cellular communication system, the user equipment (UE) is connected to the core network through a wireless interface, and the base station is connected to the core network through an optical fiber. Compared with the wireless interface, the transmission of the optical fiber interface is very reliable and has a large transmission capacity, so the optimization of the existing cellular communication system is mainly focused on the wireless interface. However, once a natural disaster occurs, such as an earthquake or flood, the optical fiber interface is easily damaged. In this case, a backpack satellite base station is very necessary. The backpack satellite base station is connected to the satellite through a wireless interface, and the satellite is then connected to the core network equipment on the ground, thereby realizing the communication service of the UE.

[0003] Since the capabilities of various user equipments are different, when the UE sends a service request to the core network equipment through the base station, the base station needs to obtain the user equipment capability information and configure the wireless parameters according to the UE capability information to establish a service connection between the UE and the core network equipment.

[0004] In the prior art, UE capability information is usually provided to base stations by core network equipment. This method is applicable to ground base stations because the ground base stations and core network equipment are connected by optical fiber, and the transmission cost is low. However, for backpack satellite base stations, the core network equipment needs to provide UE capability information to the backpack satellite base stations through satellite links, and the transmission overhead is too expensive. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides a satellite communication method, a satellite base station, a satellite communication device and a system, which can enable a backpack-type satellite base station to obtain UE capability information from a user equipment, thereby avoiding the transmission of UE capability information through a satellite link, thereby reducing the transmission overhead of the satellite link.

[0006] A first aspect of the present application provides a satellite communication method, comprising:

[0007] The satellite base station sends a system message to the user equipment, wherein the system message carries indication information, and the indication information is used to indicate that the satellite base station is a backpack satellite base station or to instruct the user equipment to report user equipment capability information;

[0008] After establishing an RRC connection with the user equipment, the satellite base station receives the user equipment capability information actively sent by the user equipment, so that the core network device does not send the user equipment capability information to the satellite base station;

[0009] The satellite base station implements communication between the user equipment and the core network device based on the user equipment capability information.

[0010] In some embodiments, the system message adds an enumeration parameter for carrying the indication information; or the indication information is indicated by a Boolean variable of the system message.

[0011] In some embodiments, before the satellite base station receives the user equipment capability information actively sent by the user equipment, the satellite base station receives a service request sent by the user equipment, and the service request carries first information, and the first information is used to indicate at least one of the following contents: the satellite base station is a backpack satellite base station, the core network device does not need to provide the user equipment capability information, and the user equipment will report the user equipment capability information so that the core network device does not send the user equipment capability information to the satellite base station; the satellite base station forwards the service request to the core network device.

[0012] In some embodiments, before the satellite base station receives the user equipment capability information actively sent by the user equipment, the satellite base station receives a service request response sent by the core network device based on the service request, and the service request response does not carry the user equipment capability information based on the first information; the satellite base station sends the service request response to the user equipment.

[0013] In some embodiments, the satellite base station receives the service request sent by the user equipment via a NAS message; and the satellite base station forwards the NAS message to the core network device.

[0014] In some embodiments, the satellite base station receives an RRC message sent by the user equipment, wherein the RRC message includes capability information of the user equipment.

[0015] In some embodiments, after the satellite base station receives the user equipment capability information, the satellite base station configures the wireless parameters of the user equipment according to the user equipment capability information, so that the user equipment transmits service data to the satellite base station based on the wireless parameters.

[0016] A second aspect of the present application provides a satellite base station, comprising:

[0017] A sending unit, configured to send a system message to a user equipment, wherein the system message carries indication information, and the indication information is used to indicate that the satellite base station is a backpack satellite base station or to instruct the user equipment to report user equipment capability information;

[0018] A processing unit, configured to establish an RRC connection with the user equipment;

[0019] A receiving unit, configured to receive the user equipment capability information actively sent by the user equipment, so that the core network device does not send the user equipment capability information to the satellite base station;

[0020] The processing unit is also used to realize communication between the user equipment and the core network device based on the user equipment capability information.

[0021] In some embodiments, the system message adds an enumeration parameter for carrying the indication information; or the indication information is indicated by a Boolean variable of the system message.

[0022] In some embodiments, the receiving unit is further used to receive a service request sent by the user device before receiving the user device capability information actively sent by the user device, the service request carries first information, and the first information is used to indicate at least one of the following contents: the satellite base station is a backpack satellite base station, the core network device does not need to provide the user device capability information, and the user device will report the user device capability information; the sending unit is also used to forward the service request to the core network device.

[0023] The third aspect of the present application provides a satellite communication device, comprising: a processor; the processor is used to execute a computer executable program or instruction in a memory, so that the satellite communication device executes the satellite communication method of the first aspect of the present application.

[0024] The fourth aspect of the present application provides a satellite communication system, the satellite communication system comprising: the satellite base station of the second aspect of the present application.

[0025] The fifth aspect of the present application provides a computer-readable storage medium, which stores a computer-executable program or instruction, and the computer-executable program or instruction is configured to execute the satellite communication method of the first aspect of the present application.

[0026] The sixth aspect of the present application provides a chip, including: an interface circuit and a logic circuit, the interface circuit is used to receive signals from other chips outside the chip and transmit them to the logic circuit, or send signals from the logic circuit to other chips outside the chip, and the logic circuit is used to implement the satellite communication method as the first aspect of the present application.

[0027] The seventh aspect of the present application provides a computer program product, including: execution instructions, the execution instructions are stored in a readable storage medium, at least one processor of the electronic device can read the execution instructions from the readable storage medium, and at least one processor executes the execution instructions so that the electronic device implements the satellite communication method of the first aspect.

[0028] In the embodiment of the present application, the user equipment can learn through system information that the currently connected satellite base station is a backpack satellite base station or indication information that requires active reporting of user equipment capability information, and the user equipment can actively report the user equipment capability information to the backpack satellite base station after establishing the RRC connection. The backpack satellite base station can obtain the user equipment capability information from the user equipment, avoiding the core network equipment from transmitting the user equipment capability information to the backpack satellite base station through the satellite link, thereby achieving the purpose of reducing the amount of signaling transmitted by the satellite link.

[0029] Therefore, the satellite communication method of the present application can enable the backpack-type satellite base station to obtain the user equipment capability information from the user equipment, avoiding the transmission of the user equipment capability information through the satellite link, thereby reducing the transmission overhead of the satellite link.

[0030] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a flowchart diagram of a satellite communication method provided in one embodiment of the present application.

[0033] Figure 2 It is a flowchart diagram of another satellite communication method provided by an embodiment of the present application.

[0034] Figure 3 A schematic diagram of the structure of a satellite communication system provided in one embodiment of the present application.

[0035] Figure 4 A schematic diagram of the structure of another satellite communication device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0038] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0041] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0042] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).

[0043] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure can refer to a physical connection. For example, the physical connection can be a fixed connection, such as a fixed connection through a fixing member, such as an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be an indirect connection through at least one intermediate element, as long as the circuit is connected, and it can also be the internal connection of the two elements; in addition to signal connection through a circuit, signal connection can also refer to signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] In order to make those skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings. It should be noted that different technical features in the present application can be combined with each other without conflict.

[0045] Figure 1 is a flow chart of a satellite communication method provided by an embodiment of the present application, such as Figure 1 As shown, the satellite communication method of the present application can be described as follows.

[0046] Step S101: A satellite base station sends a system message to a user equipment (UE).

[0047] In this embodiment, the satellite base station is a backpack satellite base station, which is a satellite base station that relies on a high-throughput satellite platform as a transmission carrier and provides communication between user equipment and satellites. The backpack satellite base station can also be called a portable satellite base station or a mobile satellite base station.

[0048] The backpack satellite base station sends a system information block (SIB) to the user equipment, wherein the system message carries indication information, and the indication information is used to indicate that the currently communicating satellite base station is a backpack satellite base station or to instruct the user equipment to unconditionally report the user equipment capability information.

[0049] For example, the system message adds an enumeration parameter to carry the indication information. Exemplarily, a Boolean variable can be used in the system message to indicate whether the current base station is a backpack satellite base station. For example, when the value of the Boolean variable in the system message is 0, it indicates that the current base station is an ordinary ground base station, and when the value of the Boolean variable in the system message is 1, it indicates that the current base station is a backpack satellite base station. For another example, when the value of the Boolean variable in the system message is 0, it indicates that the current base station is a backpack satellite base station, and when the value of the Boolean variable in the system message is 1, it indicates that the current base station is an ordinary ground base station.

[0050] Step S102: The satellite base station establishes a radio resource control (RRC) connection with the user equipment.

[0051] Step S103: The satellite base station receives the service request sent by the user equipment and forwards it to the core network equipment.

[0052] After establishing an RRC connection with the backpack satellite base station, the user equipment sends a service request to the backpack satellite base station. Correspondingly, the backpack satellite base station receives the service request sent by the user equipment and forwards the service request to the core network device.

[0053] For example, the user equipment sends the service request to the backpack satellite base station through a non-access stratum (NAS) message.

[0054] Exemplarily, the service request may be a request for any service, for example, the service request may be a voice communication request, a video communication request, or a data transmission request, etc., which is not limited in this embodiment.

[0055] Exemplarily, the core network device is a core network element device. For example, in a 5G communication network, the core network element device may be an access and mobility management function (AMF) device.

[0056] For example, after the satellite base station receives the service request sent by the user equipment through the NAS message, the satellite base station may directly forward the NAS message to the core network device because the satellite base station does not parse the NAS message.

[0057] Step S104: the satellite base station receives the user equipment capability information actively sent by the user equipment, so that the core network device does not send the user equipment capability information to the satellite base station.

[0058] The user equipment actively sends the user equipment capability information to the backpack satellite base station according to the indication information in the system message. For example, the user equipment sends the user equipment capability information to the backpack satellite base station through an RRC message. For example, if the indication information indicates that the satellite base station currently communicating is a backpack satellite base station, then after the user equipment receives the system message, when it identifies that the satellite base station currently connected or communicating is a backpack satellite base station, it actively sends the user equipment capability information to the backpack satellite base station. Or, if the indication information indicates that the user equipment unconditionally reports the user equipment capability information, then after the user equipment receives the system message, it actively sends the user equipment capability information to the backpack satellite base station.

[0059] Exemplarily, the user equipment capability information includes UE's physical layer parameters (Phy-parameters), radio frequency parameters (RF-parameters), packet data convergence protocol parameters (PDCP-parameters), radio link control parameters (RLC-parameters) and media access control parameters (MAC-parameters). For example, the user equipment capability information may include one or more of the bandwidth, frequency band, number of antennas, number of multiple input multiple output (MIMO) layers, maximum number of data radio bearers (DRBs), cache capacity, data transmission rate, and maximum power that the user equipment can support.

[0060] After obtaining the user equipment capability information of the user equipment, the backpack satellite base station can configure the carrier, frequency band, data bearer, data transmission rate, measurement reporting period, measurement reporting conditions, number of antennas for data transmission, number of MIMO layers and number of ports that can be used by the user equipment according to the parameter information included in the user equipment capability information, so that the user equipment can use the configured wireless parameters to achieve data transmission.

[0061] Step S105: The satellite base station receives a service request response sent by the core network device based on the service request and sends the response to the user equipment.

[0062] After receiving a service request, the core network device will not actively send the user equipment capability information of the user equipment to the backpack satellite base station even if it stores the user equipment capability information of the user equipment. For example, the core network device will not carry the user equipment capability information of the user equipment in the service request response.

[0063] Step S106: The user equipment transmits data (DATA) to the core network gateway.

[0064] For example, after receiving a service request response, the user equipment transmits data (DATA) to the core network gateway through the satellite base station to achieve communication between the user equipment and the core network.

[0065] In this way, the user equipment learns through system information that the currently connected satellite base station is a backpack satellite base station or obtains indication information sent by the backpack satellite base station to unconditionally report the user equipment capability information. The user equipment can actively report the user equipment capability information to the backpack satellite base station after establishing the RRC connection. The backpack satellite base station can obtain the user equipment capability information from the user equipment, avoiding the core network equipment from transmitting the user equipment capability information to the backpack satellite base station through the satellite link, thereby achieving the purpose of reducing the amount of signaling transmitted by the satellite link.

[0066] After acquiring the user equipment capability information, the backpack satellite base station configures wireless parameters for the user equipment according to the user equipment capability information, and the user equipment can use the wireless configuration to transmit data.

[0067] Therefore, the satellite communication method of the present application can enable the backpack-type satellite base station to obtain user equipment capability information from the user equipment, avoiding the transmission of the user equipment capability information through the satellite link, thereby reducing the transmission overhead of the satellite link.

[0068] Figure 2 is a flow chart of another satellite communication method provided by another embodiment of the present application. Figure 2 As shown, the satellite communication method of the present application can be described as follows.

[0069] Step S201: A satellite base station sends a system message to a user equipment.

[0070] In this embodiment, the satellite base station is a backpack satellite base station, and the backpack satellite base station sends a system message to the user equipment, wherein the system message carries indication information, and the indication information is used to indicate that the currently connected satellite base station is a backpack satellite base station or to indicate that the user equipment unconditionally reports the user equipment capability information.

[0071] The implementation process of the satellite base station sending system messages to the user equipment can be referred to Figure 1 Step S101 of the embodiment will not be described in detail here.

[0072] Step S202: The satellite base station establishes an RRC connection with the user equipment.

[0073] The implementation process of RRC connection establishment can be referred to Figure 1 Step S102 of the embodiment will not be described in detail here.

[0074] Step S203: The satellite base station receives the service request sent by the user equipment and sends it to the core network equipment.

[0075] After establishing an RRC connection with the backpack satellite base station, the user equipment sends a service request to the backpack satellite base station. Correspondingly, the backpack satellite base station receives the service request sent by the user equipment.

[0076] Exemplarily, the service request may be a request for any service, for example, the service request may be a voice communication request, a video communication request, or a data transmission request, etc., which is not limited in this embodiment.

[0077] Exemplarily, the core network device is a core network element device. For example, in a 5G communication network, the core network element device may be an access and mobility management function (AMF) device.

[0078] The service request carries first information, and the first information is used to indicate at least one of the following contents: the currently connected satellite base station is a backpack satellite base station, the core network device does not need to provide user equipment capability information, and the user equipment will report the user equipment capability information, so that the core network device does not send the user equipment capability information to the backpack satellite base station.

[0079] For example, the user equipment sends a service request to the backpack satellite base station through a non-access stratum (NAS) message, and the service request carries the first information.

[0080] For example, after the satellite base station receives the service request sent by the user equipment through the NAS message, the NAS message can be directly forwarded to the core network device because the satellite base station does not interpret or parse the NAS message.

[0081] Step S204: The satellite base station receives the service request response sent by the core network device and forwards it to the user equipment, wherein the service request response does not carry the user equipment capability information.

[0082] The core network device stores the user equipment capability information of the user equipment. After receiving a service request, the core network device will not send the user equipment capability information of the user equipment to the backpack satellite base station based on the first information carried in the service request, even if the core network device stores the user equipment capability information of the user equipment. For example, the core network device will not carry the user equipment capability information of the user equipment in the service request response.

[0083] For example, in the core network device, it is set that when the connected satellite base station is a backpack satellite base station or the indication information indicates that the core network device does not need to provide user equipment capability information or indicates that the user equipment will report the user equipment capability information, even if the core network device stores the user equipment capability information, it does not actively send the user equipment capability information to the satellite base station.

[0084] Step S205: The satellite base station receives the user equipment capability information actively sent by the user equipment, so that the core network device does not send the user equipment capability information to the satellite base station.

[0085] The user equipment sends the user equipment capability information to the backpack satellite base station according to the indication information in the system message. For example, the user equipment sends the user equipment capability information to the backpack satellite base station through an RRC message.

[0086] Exemplarily, the user equipment capability information may include one or more of the bandwidth, frequency band, number of antennas, number of MIMO layers, maximum number of DRBs, cache capacity, data transmission rate, and maximum power that the user equipment can support.

[0087] After obtaining the user equipment capability information, the backpack satellite base station can configure the carrier, frequency band, data bearer, data transmission rate, measurement reporting period, measurement reporting conditions, number of antennas for data transmission, number of MIMO layers and number of ports that can be used by the user equipment according to the parameter information included in the user equipment capability information, so that the user equipment can use the configured wireless parameters to achieve data transmission.

[0088] Step S206: The user equipment transmits data (DATA) to the core network gateway.

[0089] For example, after receiving a service request response, the user equipment transmits data (DATA) to the core network gateway through the satellite base station to achieve communication between the user equipment and the core network.

[0090] In this way, after establishing the RRC connection, the user equipment can actively report the user equipment capability information to the backpack satellite base station. The backpack satellite base station can obtain the user equipment capability information from the user equipment, avoiding the core network equipment from transmitting the user equipment capability information to the backpack satellite base station through the satellite link, thereby achieving the purpose of reducing the amount of signaling transmitted by the satellite link.

[0091] After acquiring the user equipment capability information, the backpack satellite base station configures wireless parameters for the user equipment according to the user equipment capability information, and the user equipment can use the wireless configuration to transmit data.

[0092] Therefore, the satellite communication method of the present application can enable the backpack-type satellite base station to obtain user equipment capability information from the user equipment, avoiding the transmission of the user equipment capability information through the satellite link, thereby reducing the transmission overhead of the satellite link.

[0093] like Figure 3 FIG. 1 is a schematic diagram of a satellite communication system according to an embodiment of the present application. The satellite communication system includes a satellite base station 30, a user device 31 and a core network device 32. The satellite base station 30 is a backpack-type satellite base station that can be used to perform Figure 1 or Figure 2 For details of the process performed by the satellite base station or backpack-type satellite base station in the illustrated embodiment, please refer to the relevant introduction in the above method embodiment.

[0094] The satellite base station 30 includes a transceiver unit 301 and a processing unit 302. The transceiver unit 301 can implement corresponding communication functions of sending and receiving, and the processing unit 302 is used for data processing. The transceiver unit 301 can also be called a communication interface or a communication unit.

[0095] Optionally, the satellite base station 30 may also include a storage unit (not shown), which may be used to store instructions and / or data. The processing unit 302 may read the instructions and / or data in the storage unit so that the satellite communication device implements the aforementioned method embodiment.

[0096] The satellite base station 30 can be used to perform the above Figure 1 or Figure 2 The actions performed by the satellite base station or backpack satellite base station in the method embodiment. The satellite base station 30 can be a backpack satellite base station or a component that can be configured in a backpack satellite base station. The transceiver unit 301 is used to perform the above Figure 1 or Figure 2 In the method embodiment, the processing unit 302 is used to perform the operations related to receiving and sending of the satellite base station or backpack satellite base station. Figure 1 or Figure 2 The processing-related operations of the satellite base station or backpack satellite base station in the method embodiment.

[0097] The transceiver unit 301 includes a receiving unit 3011 and a sending unit 3012 which are communicatively connected to each other. The receiving unit 3011 is used to perform the receiving operation of the satellite base station or backpack-type satellite base station in the above method embodiment, and the sending unit 3012 is used to perform the sending operation of the satellite base station or backpack-type satellite base station in the above method embodiment.

[0098] For example, the sending unit 3012 is used to send a system message to the user equipment 31, wherein the system message carries indication information, and the indication information is used to indicate that the currently connected satellite base station 30 is a backpack satellite base station or to instruct the user equipment 31 to unconditionally report the user equipment capability information.

[0099] The processing unit 302 is configured to establish an RRC connection with the user equipment 31.

[0100] The receiving unit 3011 is configured to receive a service request sent by the user equipment 31.

[0101] The sending unit 3012 is further configured to send the service request to the core network device 32 .

[0102] The receiving unit 3011 is further configured to receive user equipment capability information actively sent by the user equipment 31 , so that the core network device 32 does not send the user equipment capability information of the user equipment 31 to the satellite base station 30 .

[0103] The receiving unit 3011 is further configured to receive a service request response sent by the core network device 32 based on the service request, wherein the service request response does not carry the user equipment capability information.

[0104] The sending unit 3012 is further configured to send a service request response to the user equipment 31.

[0105] In another embodiment of the present application, the receiving unit 3011 is used to receive user equipment capability information sent by the user equipment 31 after the sending unit 3012 sends a service request to the core network device 32 and before the receiving unit 3011 receives the service request response sent by the core network device 32.

[0106] In another embodiment of the present application, the receiving unit 3011 is used to receive the user equipment capability information sent by the user equipment 31 after the sending unit 3012 sends the service request response to the user equipment 31. Then, the service request received by the receiving unit 3011 from the user equipment 31 carries the first information, and the first information is used to indicate at least one of the following contents: the current satellite base station 30 is a backpack satellite base station, the core network device does not need to provide the user equipment capability information, and the user equipment will report the user equipment capability information, so that the core network device 32 does not send the user equipment capability information to the satellite base station 30, that is, the service request response does not carry the user equipment capability information of the user equipment 31.

[0107] It should be understood that each unit performs the above corresponding process in the above Figure 1 and Figure 2 The method has been described in detail in the embodiment and will not be repeated here for the sake of brevity.

[0108] The processing unit 302 in the embodiment may be implemented by at least one processor or processor-related circuits. The transceiver unit 301 may be implemented by a transceiver or a transceiver-related circuit. The storage unit may be implemented by at least one memory.

[0109] Exemplarily, the present application also provides a satellite communication device, see Figure 4 , Figure 4 A schematic diagram of the structure of another satellite communication device provided for an embodiment of the present application. In this embodiment, the satellite communication device may be a backpack-type satellite base station.

[0110] The satellite communication device 400 includes a processor 410 . Optionally, the satellite communication device 400 may also include a memory 420 .

[0111] The processor 410 is coupled to the memory 420, the memory 420 is used to store computer programs or instructions and / or data, and the processor 410 is used to execute the computer programs or instructions and / or data stored in the memory 420, so that Figure 1 or Figure 2 In a method embodiment, operations of a satellite base station or a backpack-type satellite base station are performed.

[0112] In another embodiment of the present application, the satellite communication device 400 includes one or more processors 410 .

[0113] In another embodiment of the present application, the satellite communication device 400 includes one or more memories 420 .

[0114] In another embodiment of the present application, the memory 420 may be integrated with the processor 410 or provided separately.

[0115] In another embodiment of the present application, Figure 4 As shown, the satellite communication device 400 may further include a transceiver 430, and the processor 410, the memory 420 and the transceiver 430 are communicatively connected, for example, connected via a bus. The transceiver 430 is used for receiving and / or sending signals. For example, the processor 410 is used to control the transceiver 430 to receive and / or send signals.

[0116] As a solution, the satellite communication device 400 is used to implement Figure 1 or Figure 2 The operations in the method embodiment are performed by a satellite base station or a backpack-type satellite base station.

[0117] For example, the processor 410 is used to implement Figure 1 or Figure 2 In the method embodiment, the processing-related operations performed by the satellite base station or backpack satellite base station are implemented by the transceiver 430. Figure 1 or Figure 2 In the method embodiment, the operations related to transmission and reception are performed by the satellite base station or the backpack satellite base station.

[0118] Figure 4 In the satellite communication device shown, the device for receiving function in the transceiver 430 can be regarded as a receiving unit, and the device for sending function in the transceiver 430 can be regarded as a sending unit. That is, the transceiver 430 can include a receiver and a transmitter. The transceiver 430 can also be called a transceiver, a transceiver unit, or a transceiver circuit, etc. The receiver can also be called a receiver, a receiving unit, a receiver, or a receiving circuit, etc. The transmitter can also be called a transmitter, a transmitter, a transmitting unit, or a transmitting circuit, etc. The processor 410 has a processing function, and the processor 410 can be called a processing unit. The memory 420 is used to store computer program code and data, and the memory 420 can also be called a storage unit.

[0119] The transceiver 430 is used to send a system message to the user equipment, wherein the system message carries indication information, and the indication information is used to indicate that the satellite base station is a backpack satellite base station or to instruct the user equipment to unconditionally report the user equipment capability information.

[0120] The processor 410 is configured to establish an RRC connection with a user equipment.

[0121] The transceiver 430 is also used to receive service requests sent by user equipment, send service requests to the core network equipment, and receive user equipment capability information actively sent by the user equipment so that the core network equipment does not send user equipment capability information to the satellite communication device 400.

[0122] The transceiver 430 is further configured to receive a service request response sent by the core network device based on the service request, wherein the service request response does not carry the user equipment capability information.

[0123] The transceiver 430 is further configured to send a service request response to the user equipment.

[0124] In another embodiment of the present application, the transceiver 430 is used to receive user equipment capability information sent by the user equipment after the transceiver 430 sends a service request to the core network device and before receiving a service request response sent by the core network device.

[0125] In another embodiment of the present application, the transceiver 430 is used to receive the user equipment capability information sent by the user equipment after the transceiver 430 sends the service request response to the user equipment. Then the service request received by the transceiver 430 from the user equipment carries the first information, and the first information is used to indicate at least one of the following contents: the current satellite base station is a backpack satellite base station, the core network device does not need to provide the user equipment capability information, and the user equipment will report the user equipment capability information, so that the core network device does not send the user equipment capability information to the backpack satellite base station, that is, the service request response does not carry the user equipment capability information.

[0126] It should be understood that the processor 410 and the transceiver 430 perform the above corresponding processes in the above Figure 1 and Figure 2 The method has been described in detail in the embodiment, and will not be repeated here for the sake of brevity.

[0127] When the satellite base station 30 or the satellite communication device 400 is a chip, the chip includes a transceiver, a memory and a processor. The transceiver may be an input / output circuit or a communication interface; the processor may be a processor or a microprocessor or an integrated circuit integrated on the chip. Figure 1 and Figure 2 The sending operation of the satellite base station or backpack satellite base station in the method embodiment can be understood as the output of the chip. Figure 1 and Figure 2 The receiving operation of the satellite base station or backpack-type satellite base station in the method embodiment may be understood as the input of the chip.

[0128] Exemplarily, the present application provides a communication device, comprising: a processor; the processor is used to execute a computer executable program or instruction in a memory, so that the communication device executes Figure 1 or Figure 2 The method in the embodiment.

[0129] Exemplarily, the present application provides a chip, including: an interface circuit and a logic circuit, wherein the interface circuit is used to receive a signal from another chip outside the chip and transmit it to the logic circuit, or to send a signal from the logic circuit to another chip outside the chip, and the logic circuit is used to implement Figure 1 or Figure 2 The method in the embodiment.

[0130] Exemplarily, the present application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor so that an electronic device can realize Figure 1 or Figure 2 The method in the embodiment.

[0131] Exemplarily, the present application provides a computer program product, including: an execution instruction, the execution instruction is stored in a readable storage medium, at least one processor of the electronic device can read the execution instruction from the readable storage medium, and at least one processor executes the execution instruction so that the electronic device implements Figure 1 or Figure 2 The method in the embodiment.

[0132] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0133] Each functional unit or module in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0134] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable an electronic device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0135] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0136] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A satellite communication method, characterized in that: The method comprises: The satellite base station sends a system message to the user equipment, wherein the system message carries indication information, and the indication information is used to indicate that the satellite base station is a backpack satellite base station or to indicate that the user equipment reports user equipment capability information; After establishing a radio resource control RRC connection with the user equipment, the satellite base station receives the user equipment capability information actively sent by the user equipment, so that the core network device does not send the user equipment capability information to the satellite base station; The satellite base station realizes communication between the user equipment and the core network device based on the user equipment capability information; Before the satellite base station receives the user equipment capability information actively sent by the user equipment, the method further includes: The satellite base station receives a service request sent by the user equipment, where the service request carries first information, where the first information is used to indicate at least one of the following contents: the satellite base station is a backpack satellite base station, the core network device does not need to provide the user equipment capability information, and the user equipment reports the user equipment capability information, so that the core network device does not send the user equipment capability information to the satellite base station; The satellite base station forwards the service request to the core network device; Before the satellite base station receives the user equipment capability information actively sent by the user equipment, the method further includes: The satellite base station receives a service request response sent by the core network device based on the service request, where the service request response does not carry the user equipment capability information based on the first information; The satellite base station sends the service request response to the user equipment; The receiving, by the satellite base station, the service request sent by the user equipment specifically includes: The satellite base station receives the service request sent by the user equipment through a non-access layer NAS message; The satellite base station forwarding the service request to the core network device specifically includes: The satellite base station forwards the NAS message to the core network device; After the satellite base station receives the user equipment capability information, the method further includes: The satellite base station configures the wireless parameters of the user equipment according to the user equipment capability information, so that the user equipment transmits service data to the satellite base station based on the wireless parameters.

2. The method according to claim 1, characterized in that The system message is added with an enumeration parameter for carrying the indication information; or the indication information is indicated by a Boolean variable of the system message.

3. The method according to claim 1, characterized in that The receiving, by the satellite base station, of the user equipment capability information actively sent by the user equipment specifically includes: The satellite base station receives an RRC message sent by the user equipment, wherein the RRC message includes the user equipment capability information.

4. A satellite base station, characterized in that: The satellite base station comprises: A sending unit, configured to send a system message to a user equipment, wherein the system message carries indication information, and the indication information is used to indicate that the satellite base station is a backpack satellite base station or to instruct the user equipment to report user equipment capability information; A processing unit, configured to establish a radio resource control (RRC) connection with the user equipment; A receiving unit, configured to receive the user equipment capability information actively sent by the user equipment, so that the core network device does not send the user equipment capability information to the satellite base station; The processing unit is further used to realize communication between the user equipment and the core network device based on the user equipment capability information; the receiving unit is further used to receive a service request sent by the user equipment, the service request carries first information, and the first information is used to indicate at least one of the following contents: the satellite base station is a backpack satellite base station, the core network device does not need to provide the user equipment capability information, and the user equipment reports the user equipment capability information, so that the core network device does not send the user equipment capability information to the satellite base station; The sending unit is further used to forward the service request to the core network device; The receiving unit is further configured to receive a service request response sent by the core network device based on the service request, wherein the service request response does not carry the user equipment capability information based on the first information; The sending unit is further configured to send the service request response to the user equipment; The receiving unit is specifically configured to receive the service request sent by the user equipment through a non-access layer NAS message; The sending unit is specifically configured to forward the NAS message to the core network device; The processing unit is further used to configure the wireless parameters of the user equipment according to the user equipment capability information, so that the user equipment transmits service data to the satellite base station based on the wireless parameters.

5. The satellite base station according to claim 4, characterized in that: The system message is added with an enumeration parameter for carrying the indication information; or the indication information is indicated by a Boolean variable of the system message.

6. A satellite communication device, characterized in that: include: processor; The processor is used to execute the computer executable program or instructions in the memory, so that the satellite communication device executes the method according to any one of claims 1 to 3.

7. A satellite communication system, characterized in that: The satellite communication system comprises the satellite base station according to claim 4 or 5.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer-executable program or instruction, and the computer-executable program or instruction is configured to execute the method according to any one of claims 1 to 3.

9. A chip, characterized in that: include: An interface circuit and a logic circuit, wherein the interface circuit is used to receive signals from other chips outside the chip and transmit them to the logic circuit, or to send signals from the logic circuit to other chips outside the chip, and the logic circuit is used to implement the method described in any one of claims 1 to 3.

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