CN118138115A - Satellite communication method, satellite base station, satellite communication device and system - Google Patents

Abstract

The embodiment of the application provides a satellite communication method, a satellite base station, a satellite communication device and a satellite communication system. The user equipment acquires that the currently connected satellite base station is a knapsack type satellite base station through the system information, and actively reports the capability information of the user equipment to the knapsack type satellite base station after the RRC connection is established. The knapsack type satellite base station acquires the capability information of the user equipment from the user equipment, so that the core network equipment is prevented from transmitting the capability information of the user equipment to the knapsack type satellite base station through a satellite link, and the purpose of reducing the transmission signaling quantity of the satellite link is achieved. After the knapsack satellite base station acquires the capability information of the user equipment, the knapsack satellite base station configures wireless parameters for the user equipment according to the capability information of the user equipment, and the user equipment can use the wireless configuration to transmit data.

Description

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

Technical Field

The embodiment of the application relates to the technical field of wireless mobile communication, in particular to a satellite communication method, a satellite base station, a satellite communication device and a satellite communication system.

Background

In the existing cellular communication system, a User Equipment (UE) is connected to a base station through a radio interface, and a base station is connected to a core network through an optical fiber. The transmission of the optical fiber interface is very reliable and the transmission capacity is large compared to the wireless interface, so the optimization of the existing cellular communication system is mainly focused on the wireless interface. However, in the event of natural disasters, such as earthquakes, floods, etc., the fiber interfaces are easily broken, in which case a backpack satellite base station is necessary. The knapsack type satellite base station is connected with a satellite through a wireless interface, and the satellite is connected with core network equipment on the ground, so that communication service of the UE is realized.

Because the capabilities of various user equipment are different, after the UE sends a service request to the core network device through the base station, the base station needs to acquire capability information (user equipment capability information) of the user equipment, and configures wireless parameters according to the capability information of the UE to build service connection between the UE and the core network device.

In the prior art, the core network equipment generally provides UE capability information for the base station, and the method is applicable to the ground base station, because the ground base station is connected with the core network equipment through optical fibers, the transmission cost is lower; however, for the knapsack satellite base station, the core network device provides UE capability information to the knapsack satellite base station, and the transmission cost is too high through a satellite link.

Disclosure of Invention

In view of the above problems, embodiments of the present application provide a satellite communication method, a satellite base station, a satellite communication device, and a satellite communication system, which can enable a knapsack type satellite base station to acquire UE capability information from user equipment, thereby avoiding transmission of the UE capability information through a satellite link, and reducing transmission overhead of the satellite link.

A first aspect of the present application provides a satellite communication method comprising:

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 for indicating that the satellite base station is a knapsack type satellite base station or indicating that the user equipment reports the capability information of the user equipment;

After the satellite base station establishes RRC connection with the user equipment, the satellite base station receives the user equipment capability information actively transmitted by the user equipment, so that the core network equipment does not transmit the user equipment capability information to the satellite base station;

The satellite base station realizes the communication between the user equipment and the core network equipment based on the capability information of the user equipment.

In some embodiments, the system message adds an enumeration-type parameter for carrying the indication information; or the indication information is indicated by a boolean variable of the system message.

In some embodiments, before the satellite base station receives the capability information of the ue actively sent by the ue, the satellite base station receives a service request sent by the ue, where the service request carries first information, and the first information is used to indicate at least one of the following: the satellite base station is a knapsack type satellite base station, the core network equipment does not need to provide the user equipment capability information and the user equipment can report the user equipment capability information, so that the core network equipment 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.

In some embodiments, before the satellite base station receives the capability information of the user equipment actively sent by the user equipment, the satellite base station receives a service request response sent by the core network equipment based on the service request, where the service request response does not carry the capability information of the user equipment based on the first information; the satellite base station transmits the service request response to the user equipment.

In some embodiments, the satellite base station receives the service request sent by the user equipment through NAS messages; the satellite base station forwards the NAS message to the core network device.

In some embodiments, the satellite base station receives an RRC message sent by the user equipment, where the RRC message includes the user equipment capability information.

In some embodiments, after the satellite base station receives the user equipment capability information, the satellite base station configures a wireless parameter 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 parameter.

A second aspect of the present application provides a satellite base station comprising:

The system comprises a sending unit, a receiving unit and a reporting unit, wherein the sending unit is used for sending a system message to user equipment, and the system message carries indication information which is used for indicating that the satellite base station is a knapsack type satellite base station or indicating that the user equipment reports the capability information of the user equipment;

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

The receiving unit is used for receiving the user equipment capability information actively sent by the user equipment so that the core network equipment does not send the user equipment capability information to the satellite base station;

the processing unit is further configured to implement communication between the ue and the core network device based on the ue capability information.

In some embodiments, the system message adds an enumeration-type parameter for carrying the indication information; or the indication information is indicated by a boolean variable of the system message.

In some embodiments, the receiving unit is further configured to, before receiving the capability information of the user equipment actively sent by the user equipment, receive a service request sent by the user equipment, where 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 knapsack satellite base station, and the core network equipment does not need to provide the capability information of the user equipment and the user equipment can report the capability information of the user equipment; the sending unit is further configured to forward the service request to the core network device.

A third aspect of the present application provides a satellite communication device comprising: a processor; the processor is configured to execute the computer-executable program or instructions in the memory to cause the satellite communication device to perform the satellite communication method of the first aspect of the application.

A fourth aspect of the present application provides a satellite communication system comprising: the satellite base station of the second aspect of the application.

A fifth aspect of the application provides a computer readable storage medium storing a computer executable program or instructions arranged to perform the satellite communication method of the first aspect of the application.

A sixth aspect of the present application provides a chip comprising: the interface circuit is used for receiving signals from other chips outside the chip and transmitting the signals to the logic circuit, or sending the signals from the logic circuit to the other chips outside the chip, and the logic circuit is used for realizing the satellite communication method according to the first aspect of the application.

A seventh aspect of the application provides a computer program product comprising: executing instructions stored in a readable storage medium, the executing instructions readable by at least one processor of the electronic device, the executing instructions executable by the at least one processor causing the electronic device to implement the satellite communication method of the first aspect.

In the embodiment of the application, the user equipment can acquire the indication information that the currently connected satellite base station is a knapsack type satellite base station or the capability information of the user equipment is required to be actively reported through the system information, and the user equipment can actively report the capability information of the user equipment to the knapsack type satellite base station after the RRC connection is established. The knapsack type satellite base station can acquire the capability information of the user equipment from the user equipment, so that the core network equipment is prevented from transmitting the capability information of the user equipment to the knapsack type satellite base station through a satellite link, and the purpose of reducing the transmission signaling quantity of the satellite link is achieved.

Therefore, the satellite communication method can enable the knapsack type satellite base station to acquire the capability information of the user equipment from the user equipment, and avoid the capability information of the user equipment from being transmitted through a satellite link, thereby reducing the transmission overhead of the satellite link.

The foregoing description is only an overview of the technical solutions of the embodiments of the present application, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present application can be more clearly understood, and the following specific embodiments of the present application are given for clarity and understanding.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a flow chart of a satellite communication method according to an embodiment of the application.

Fig. 2 is a flow chart of another satellite communication method according to an embodiment of the application.

Fig. 3 is a schematic structural diagram of a satellite communication system according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of another satellite communication device according to an embodiment of the application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The terms "comprising" and "having" and any variations thereof in the description and claims of the application and in the description of the drawings are intended to cover and not exclude other matters. The word "a" or "an" does not exclude the presence of a plurality.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Furthermore, the terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order, and may be used to improve one or more of these features either explicitly or implicitly.

In the description of the present application, unless otherwise indicated, the meaning of "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two).

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and for example, the terms "connected" or "coupled" of a mechanical structure may refer to a physical connection, for example, a physical connection may be a fixed connection, for example, a fixed connection by a fixing, for example, an electrical connection or a signal connection, for example, may be a direct connection, i.e., a physical connection, or may be an indirect connection through at least one element therebetween, so long as electrical communication is achieved, or may be internal communication between two elements; signal connection may refer to signal connection through a medium such as radio waves, in addition to signal connection through a circuit. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In order to enable those skilled in the art to better understand the present application, a technical solution of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, different technical features of the present application may be combined with each other.

Fig. 1 is a flow chart of a satellite communication method according to an embodiment of the application, and as shown in fig. 1, the satellite communication method according to the application can be described as follows.

In step S101, the satellite base station transmits a system message to a User Equipment (UE).

In this embodiment, the satellite base station is a knapsack type 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 the user equipment and the satellite. The backpack satellite base station may also be referred to as a portable satellite base station or a mobility satellite base station.

The knapsack type satellite base station sends a system message (systeminformation block, SIB) to the user equipment, wherein the system message carries indication information, and the indication information is used for indicating that the currently communicating satellite base station is the knapsack type satellite base station or indicating that the user equipment unconditionally reports the capability information of the user equipment.

For example, the system message adds an enumeration type parameter for carrying the indication information. For example, the indication of whether the current base station is a knapsack-type satellite base station may be implemented in a system message using a boolean variant. For example, the current base station may be indicated as a normal ground base station when the value of the boolean variable in the system message is 0, and may be indicated as a knapsack satellite base station when the value of the boolean variable in the system message is 1. For another example, the current base station may be indicated as a knapsack satellite base station when the value of the boolean variable in the system message is 0, and the current base station may be indicated as a normal ground base station when the value of the boolean variable in the system message is 1.

In step S102, the satellite base station establishes a radio resource control (radio resource control, RRC) connection with the user equipment.

Step S103, the satellite base station receives the service request sent by the user equipment and forwards the service request to the core network equipment.

After establishing an RRC connection with the knapsack type satellite base station, the user equipment sends a service request to the knapsack type satellite base station. Correspondingly, the knapsack type satellite base station receives the service request sent by the user equipment and forwards the service request to the core network equipment.

For example, the user equipment sends the service request to the knapsack satellite base station via a Non-access stratum (NAS) message.

By way of example, the service request may be a request for any service, for example, a voice communication request, a video communication request, or a data transmission request, and the like, and the embodiment is not limited.

The core network device is illustratively a core network element device, which may be an access and mobility management function (ACCESS AND Mobility Management Function, AMF) device in a 5G communication network, for example.

For example, after receiving a 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.

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

And the user equipment actively transmits the capability information of the user equipment to the knapsack type satellite base station according to the indication information in the system message. For example, the user equipment transmits user equipment capability information to the knapsack satellite base station through an RRC message. For example, the indication information indicates that the currently communicating satellite base station is a knapsack type satellite base station, and when the user equipment recognizes that the currently connected or communicating satellite base station is the knapsack type satellite base station after receiving the system message, the user equipment actively transmits the capability information of the user equipment to the knapsack type satellite base station. Or, the indication information indicates the user equipment to unconditionally report the capability information of the user equipment, and the user equipment actively transmits the capability information of the user equipment to the knapsack satellite base station after receiving the system information.

Illustratively, the user equipment capability information includes physical layer parameters (Phy-parameters), radio frequency parameters (RF-parameters), packet data convergence protocol parameters (PDCP-parameters), radio link control parameters (RLC-parameters), medium access control parameters (MAC-parameters), and the like of the UE. For example, the user equipment capability information may include one or more of bandwidth, frequency band, number of antennas, number of multiple input multiple output (Multiple Input Multiple Output, MIMO) layers, maximum number of data radio bearers (Data Radio Bearer, DRBs), buffer capacity, data transmission rate, and maximum power that the user equipment can support.

After acquiring the capability information of the user equipment, the knapsack satellite base station can configure parameters such as carrier waves, frequency bands, data bearing, data transmission rate, measurement reporting period, measurement reporting conditions, antenna number of data transmission, MIMO layer number, port number and the like which can be used by the user equipment according to parameter information included in the capability information of the user equipment, so that the user equipment can realize data transmission by using the configured wireless parameters.

Step S105, the satellite base station receives the service request response sent by the core network device based on the service request and sends the service request response to the user device.

After receiving the service request, the core network device does not actively send the user equipment capability information of the user equipment to the knapsack satellite base station even if the core network device stores the user equipment capability information of the user equipment, for example, the core network device does not carry the user equipment capability information of the user equipment in the service request response.

Step S106, the ue and the core network gateway perform DATA (DATA) transmission.

For example, after receiving the service request response, the ue transmits DATA (DATA) through the satellite base station and the core network gateway, so as to implement communication between the ue and the core network.

In this way, the user equipment can acquire the indication information of unconditionally reporting user equipment capability information sent by the knapsack type satellite base station or acquire the indication information of unconditionally reporting user equipment capability information by the current connected satellite base station through the system information, and the user equipment can actively report the user equipment capability information to the knapsack type satellite base station after the RRC connection is established. The knapsack type satellite base station can acquire the capability information of the user equipment from the user equipment, so that the core network equipment is prevented from transmitting the capability information of the user equipment to the knapsack type satellite base station through a satellite link, and the purpose of reducing the transmission signaling quantity of the satellite link is achieved.

After the knapsack satellite base station acquires the capability information of the user equipment, the knapsack satellite base station configures wireless parameters for the user equipment according to the capability information of the user equipment, and the user equipment can use the wireless configuration to transmit data.

Therefore, the satellite communication method can enable the knapsack type satellite base station to acquire the capability information of the user equipment from the user equipment, and avoid the capability information of the user equipment from being transmitted through the satellite link, thereby reducing the transmission overhead of the satellite link.

Fig. 2 is a flow chart of another satellite communication method according to another embodiment of the present application, and as shown in fig. 2, the satellite communication method according to the present application can be described as follows.

In step S201, the satellite base station transmits a system message to the user equipment.

In this embodiment, the satellite base station is a knapsack type satellite base station, and the knapsack type satellite base station sends a system message to the user equipment. The system information carries indication information, and the indication information is used for indicating that the currently connected satellite base station is a knapsack satellite base station or indicating that the user equipment unconditionally reports the capability information of the user equipment.

The implementation process of the satellite base station transmitting the system message to the user equipment may refer to step S101 in the embodiment of fig. 1, which is not described herein again.

In step S202, the satellite base station establishes an RRC connection with the user equipment.

The implementation procedure of RRC connection establishment may refer to step S102 in the embodiment of fig. 1, and will not be described herein.

In step S203, the satellite base station receives the service request sent by the user equipment and sends the service request to the core network equipment.

After establishing an RRC connection with the knapsack type satellite base station, the user equipment sends a service request to the knapsack type satellite base station. Correspondingly, the knapsack satellite base station receives a service request sent by the user equipment.

By way of example, 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, and the like, and the embodiment is not limited.

The core network device is illustratively a core network element device, which may be an access and mobility management function (ACCESS AND Mobility Management Function, AMF) device in a 5G communication network, for example.

The service request carries first information, and the first information is used for indicating at least one of the following contents: the currently connected satellite base station is a knapsack type satellite base station, and the core network equipment does not need to provide user equipment capability information and the user equipment can report the user equipment capability information so that the core network equipment does not send the user equipment capability information to the knapsack type satellite base station.

For example, the user equipment sends a service request to a knapsack satellite base station through a Non-access stratum (NAS) message, where the service request carries first information.

For example, after receiving a 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 interpret or parse the NAS message.

In step S204, the satellite base station receives the service request response sent by the core network device and forwards the service request response to the user device, where the service request response does not carry the capability information of the user device.

The core network device stores the user equipment capability information of the user equipment, and after the core network device receives the service request, the core network device does not send the user equipment capability information of the user equipment to the knapsack type satellite base station according to the first information carried by 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 does not carry the user equipment capability information of the user equipment in the service request response.

For example, in the core network device, when the connected satellite base station is a knapsack type satellite base station or the indication information indicates that the core network device does not need to provide the user equipment capability information or indicates that the user equipment can report the user equipment capability information, the user equipment capability information is not actively sent to the satellite base station even if the core network device stores the user equipment capability information.

In step S205, the satellite base station receives the ue capability information actively transmitted by the ue, so that the core network device does not transmit the ue capability information to the satellite base station.

The ue sends the ue capability information to the knapsack satellite base station according to the indication information in the system message, for example, the ue sends the ue capability information to the knapsack satellite base station through RRC message.

The user equipment capability information may include, for example, one or more of bandwidth, frequency band, number of antennas, number of MIMO layers, maximum DRB number, buffer capacity, data transmission rate, and maximum power that the user equipment can support.

After acquiring the capability information of the user equipment, the knapsack satellite base station can configure parameters such as carrier waves, frequency bands, data bearing, data transmission rate, measurement reporting period, measurement reporting condition, antenna number of data transmission, MIMO layer number and port number which can be used by the user equipment according to parameter information included in the capability information of the user equipment, so that the user equipment can realize data transmission by using the configured wireless parameters.

In step S206, the ue performs DATA (DATA) transmission with the core network gateway.

For example, after receiving the service request response, the ue transmits DATA (DATA) through the satellite base station and the core network gateway, so as to implement communication between the ue and the core network.

In this way, the ue may actively report the ue capability information to the knapsack satellite base station after the RRC connection is established. The knapsack type satellite base station can acquire the capability information of the user equipment from the user equipment, so that the core network equipment is prevented from transmitting the capability information of the user equipment to the knapsack type satellite base station through a satellite link, and the purpose of reducing the transmission signaling quantity of the satellite link is achieved.

After the knapsack satellite base station acquires the capability information of the user equipment, the knapsack satellite base station configures wireless parameters for the user equipment according to the capability information of the user equipment, and the user equipment can use the wireless configuration to transmit data.

Therefore, the satellite communication method can enable the knapsack type satellite base station to acquire the capability information of the user equipment from the user equipment, and avoid the capability information of the user equipment from being transmitted through the satellite link, thereby reducing the transmission overhead of the satellite link.

As shown in fig. 3, a schematic structure of a satellite communication system according to an embodiment of the present application includes a satellite base station 30, a user equipment 31 and a core network device 32. The satellite base station 30 is a knapsack type satellite base station, and may be used to perform the processes performed by the satellite base station or the knapsack type satellite base station in the embodiments shown in fig. 1 or fig. 2, and refer specifically to the description related to the above method embodiments.

The satellite base station 30 includes a transceiver unit 301 and a processing unit 302. The transceiver unit 301 may implement corresponding communication functions of transmitting and receiving, and the processing unit 302 is configured to perform data processing. The transceiver unit 301 may also be referred to as a communication interface or a communication unit.

Optionally, the satellite base station 30 may further include a storage unit (not shown), where the storage unit may be configured to store instructions and/or data, and the processing unit 302 may read the instructions and/or data in the storage unit, so that the satellite communications device implements the foregoing method embodiments.

The satellite base station 30 may be used to perform the actions performed by the satellite base station or the backpack satellite base station in the embodiments of the methods of fig. 1 or 2 described above. The satellite base station 30 may be a backpack-type satellite base station or a component that may be configured to a backpack-type satellite base station. The transceiver unit 301 is configured to perform operations related to receiving and transmitting by the satellite base station or the knapsack satellite base station in the embodiment of the method of fig. 1 or fig. 2, and the processing unit 302 is configured to perform operations related to processing by the satellite base station or the knapsack satellite base station in the embodiment of the method of fig. 1 or fig. 2.

The transceiver unit 301 includes a receiving unit 3011 and a transmitting unit 3012 that are communicatively connected to each other, the receiving unit 3011 is configured to perform a receiving operation of the satellite base station or the knapsack type satellite base station in the above-described method embodiment, and the transmitting unit 3012 is configured to perform a transmitting operation of the satellite base station or the knapsack type satellite base station in the above-described method embodiment.

For example, the sending unit 3012 is configured to send a system message to the user equipment 31, where the system message carries indication information, where the indication information is used to indicate that the currently connected satellite base station 30 is a knapsack type satellite base station or indicates that the user equipment 31 unconditionally reports the user equipment capability information.

A processing unit 302, configured to establish an RRC connection with the user equipment 31.

A receiving unit 3011, configured to receive a service request sent by the user equipment 31.

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

The receiving unit 3011 is further configured to receive the 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.

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, where the service request response does not carry the capability information of the user equipment.

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

In another embodiment of the present application, the receiving unit 3011 is configured to receive the 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 a service request response sent by the core network device 32.

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

It should be understood that the respective processes performed by the units are already described in detail in the method embodiments of fig. 1 and 2, and are not described herein for brevity.

The processing unit 302 in an embodiment may be implemented by at least one processor or processor-related circuitry. The transceiver unit 301 may be implemented by a transceiver or transceiver related circuits. The memory unit may be implemented by at least one memory.

In an exemplary embodiment, referring to fig. 4, fig. 4 is a schematic structural diagram of another satellite communication device according to an embodiment of the present application, where the satellite communication device may be a backpack-type satellite base station.

The satellite communication device 400 includes a processor 410 and optionally the satellite communication device 400 may also include a memory 420.

Processor 410 is coupled to memory 420, memory 420 for storing computer programs or instructions and/or data, and processor 410 is for executing the computer programs or instructions and/or data stored by memory 420, such that the operations of the satellite base station or the backpack-type satellite base station in the method embodiment of fig. 1 or fig. 2 are performed.

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

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

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

In another embodiment of the present application, as shown in fig. 4, the satellite communication device 400 may further include a transceiver 430, the processor 410, the memory 420, and the transceiver 430 being communicatively coupled, for example, via a bus. Transceiver 430 is used for the reception and/or transmission of signals. For example, the processor 410 is configured to control the transceiver 430 to receive and/or transmit signals.

As an alternative, the satellite communication device 400 is configured to implement the operations performed by the satellite base station or the backpack satellite base station in the method embodiment of fig. 1 or fig. 2.

For example, processor 410 is configured to perform process-related operations performed by the satellite base station or the backpack satellite base station in the method embodiment of fig. 1 or 2, and transceiver 430 is configured to perform transceiver-related operations performed by the satellite base station or the backpack satellite base station in the method embodiment of fig. 1 or 2.

In the satellite communication apparatus shown in fig. 4, the device for the receiving function in the transceiver 430 may be regarded as a receiving unit, and the device for the transmitting function in the transceiver 430 may be regarded as a transmitting unit. I.e., transceiver 430 may include a receiver and a transmitter. The transceiver 430 may also be referred to as a transceiver, transceiver unit, transceiver circuit, or the like. The receiver may also be referred to as a receiver, a receiving unit, a receiver, a receiving circuit, or the like. The transmitter may also be referred to as a transmitter, a transmitting unit, or a transmitting circuit, etc. The processor 410 has a processing function, and the processor 410 may be referred to as a processing unit. Memory 420 is used to store computer program code and data, and memory 420 may also be referred to as a storage unit.

And a transceiver 430, configured to send a system message to the user equipment, where the system message carries indication information, where the indication information is used to indicate that the satellite base station is a knapsack type satellite base station or indicate that the user equipment unconditionally reports the capability information of the user equipment.

A processor 410 for establishing an RRC connection with the user equipment.

The transceiver 430 is further configured to receive a service request sent by the user equipment, send the service request to the core network device, and 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 communication device 400.

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

Transceiver 430 is also used to send a service request response to the user device.

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

In another embodiment of the present application, the transceiver 430 is configured to receive the user equipment capability information sent by the user equipment after the transceiver 430 sends a service request response to the user equipment. The service request received by the transceiver 430 from the user equipment carries first information indicating at least one of: the current satellite base station is a knapsack type satellite base station, and the core network equipment does not need to provide user equipment capability information and the user equipment can report the user equipment capability information, so that the core network equipment does not send the user equipment capability information to the knapsack type satellite base station, namely the service request response does not carry the user equipment capability information.

It should be appreciated that the corresponding processes performed by the processor 410 and the transceiver 430 are described in detail in the embodiments of the methods of fig. 1 and 2, and are not described herein for brevity.

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. Wherein, the transceiver can be an input-output circuit and a communication interface; the processor is an integrated processor or microprocessor or integrated circuit on the chip. The above-described transmitting operation of the satellite base station or the backpack-type satellite base station in the embodiment of the method of fig. 1 and 2 may be understood as an output of the chip, and the above-described receiving operation of the satellite base station or the backpack-type satellite base station in the embodiment of the method of fig. 1 and 2 may be understood as an input of the chip.

Illustratively, the present application provides a communication device comprising: a processor; the processor is configured to execute the computer-executable program or instructions in the memory to cause the communication device to perform the method of the embodiment of fig. 1 or 2.

Illustratively, the present application provides a chip comprising: the interface circuit is used for receiving signals from other chips outside the chip and transmitting the signals to the logic circuit, or sending the signals from the logic circuit to the other chips outside the chip, and the logic circuit is used for realizing the method in the embodiment of fig. 1 or fig. 2.

The present application illustratively provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, causes an electronic device to perform the method of the embodiments of fig. 1 or 2.

Illustratively, the present application provides a computer program product comprising: executing instructions stored in a readable storage medium, the executing instructions can be read from the readable storage medium by at least one processor of an electronic device, the executing instructions being executed by the at least one processor to cause the electronic device to implement the method of the embodiments of fig. 1 or fig. 2.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The functional units or modules in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all or part of the technical solution contributing to the prior art, or in the form of a software product stored in a storage medium, comprising several instructions for causing an electronic device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Those skilled in the art will appreciate that while some embodiments herein include certain features that are included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (14)

1. A method of satellite communication, the method comprising:

the satellite base station sends a system message to user equipment, wherein the system message carries indication information, and the indication information is used for indicating that the satellite base station is a knapsack type satellite base station or indicating that the user equipment reports the user equipment capacity information;

After establishing Radio Resource Control (RRC) connection with the user equipment, the satellite base station receives the user equipment capability information actively transmitted by the user equipment so that core network equipment does not transmit the user equipment capability information to the satellite base station;

the satellite base station realizes the communication between the user equipment and the core network equipment based on the user equipment capability information.

2. The method of claim 1, wherein the system message increases an enumeration type parameter for carrying the indication information; or the indication information is indicated by a boolean variable of the system message.

3. The method of claim 1, wherein prior to the satellite base station receiving the user device capability information actively transmitted by the user device, the method further comprises:

The satellite base station receives a service request sent by the user equipment, wherein the service request carries first information, and the first information is used for indicating at least one of the following contents: the satellite base station is a knapsack type satellite base station, the core network equipment does not need to provide the user equipment capability information and the user equipment can report the user equipment capability information, so that the core network equipment does not send the user equipment capability information to the satellite base station;

And the satellite base station forwards the service request to the core network equipment.

4. A method according to claim 3, wherein before the satellite base station receives the user equipment capability information actively transmitted by the user equipment, the method further comprises:

The satellite base station receives a service request response sent by the core network device based on the service request, wherein the service request response does not carry the capability information of the user equipment based on the first information;

and the satellite base station sends the service request response to the user equipment.

5. The method of claim 3, wherein the satellite base station receiving the service request sent by the user equipment specifically comprises:

the satellite base station receives the service request sent by the user equipment through a non-access stratum (NAS) message;

the forwarding, by the satellite base station, the service request to the core network device specifically includes:

And the satellite base station forwards the NAS message to the core network equipment.

6. The method of claim 1, wherein the receiving, by the satellite base station, the user equipment capability information actively sent by the user equipment specifically includes:

and the satellite base station receives the RRC message sent by the user equipment, wherein the RRC message comprises the user equipment capability information.

7. The method of claim 1, wherein after the satellite base station receives the user device capability information, the method further comprises:

the satellite base station configures 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.

8. A satellite base station, the satellite base station comprising:

the system comprises a sending unit, a receiving unit and a reporting unit, wherein the sending unit is used for sending a system message to user equipment, and the system message carries indication information which is used for indicating that the satellite base station is a knapsack type satellite base station or indicating that the user equipment reports user equipment capability information;

A processing unit, configured to establish a radio resource control RRC connection with the user equipment;

the receiving unit is used for receiving the user equipment capability information actively sent by the user equipment so that the core network equipment does not send the user equipment capability information to the satellite base station;

The processing unit is further configured to implement communication between the user equipment and the core network device based on the capability information of the user equipment.

9. The satellite base station of claim 8, wherein the system message increases an enumeration parameter for carrying the indication information; or the indication information is indicated by a boolean variable of the system message.

10. The satellite base station of claim 8, wherein,

The receiving unit is further configured to receive, before receiving the capability information of the user equipment that is actively sent by the user equipment, a service request sent by the user equipment, where 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 knapsack type satellite base station, and the core network equipment does not need to provide the user equipment capacity information and the user equipment can report the user equipment capacity information;

the sending unit is further configured to forward the service request to the core network device.

11. A satellite communications device, comprising: a processor; the processor is configured to execute computer-executable programs or instructions in a memory that cause the satellite communication device to perform the method of any of claims 1-7.

12. A satellite communication system comprising a satellite base station according to any one of claims 8-10.

13. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer executable program or instructions arranged to perform the method of any of claims 1-7.

14. A chip, comprising: interface circuit and logic circuit, the interface circuit is used for receiving signals from other chips outside the chip and transmitting the signals to the logic circuit, or sending the signals from the logic circuit to other chips outside the chip, the logic circuit is used for realizing the method according to any one of claims 1-7.