Emergency service method, device, equipment, chip and storage medium

Abstract

The invention provides an emergency service method and device, equipment, a chip and a storage medium, and the method comprises the steps: enabling a satellite to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station through transmitting a first message carrying an emergency service willingness instruction, and an emergency service connection can be established with the gateway stations belonging to the second type of gateway stations. Therefore, the emergency service connection can be established between the unsigned satellite and the gateway station, so that the service capability and range of satellite communication in the emergency service can be improved.

Description

Technical Field

[0001] The present disclosure relates to the field of satellite communication technologies, and in particular, to an emergency service method, apparatus, device, chip, and storage medium. Background Art

[0002] Currently, when an emergency service requirement occurs, a terminal sends an emergency service request to a satellite, and the satellite forwards the corresponding emergency service request to an IMS core network through an emergency service connection with a subscribed gateway station, and the IMS core network connects to a Public Safety Answering Point (PSAP), so as to establish an emergency service session between the terminal and the PSAP. However, in the current emergency service solution, the emergency service can only be performed between the subscribed satellite and the gateway station, resulting in limited service capabilities and scope of satellite communication in emergency services. Summary of the Invention

[0003] Embodiments of the present disclosure provide an emergency service method, apparatus, device, chip, and storage medium to solve the technical problem of limited service capabilities and scope of satellite communication in emergency services.

[0004] In a first aspect, an embodiment of the present disclosure provides an emergency service method, which is applied to a satellite. The method includes: sending a first message, where the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, where the first type of gateway station is subscribed to the satellite, and the second type of gateway station is not subscribed to the satellite; establishing an emergency service connection with the gateway station, where the gateway station belongs to the second type of gateway station.

[0005] In a second aspect, an embodiment of the present disclosure provides an emergency service method, which is applied to a gateway station. The method includes: receiving a first message sent by a satellite, where the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, where the first type of gateway station is subscribed to the satellite, and the second type of gateway station is not subscribed to the satellite; if the gateway station belongs to the second type of gateway station, establishing an emergency service connection with the satellite.

[0006] In a third aspect, embodiments of the present disclosure provide an emergency service device applied in a satellite. The device includes: a sending module configured to send a first message, where the first message includes an emergency service willingness indication for indicating that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, where the first type of gateway station has a contract with the satellite and the second type of gateway station has no contract with the satellite; a connection establishment module configured to establish an emergency service connection with the gateway station, where the gateway station belongs to the second type of gateway station.

[0007] In a fourth aspect, embodiments of the present disclosure provide an emergency service device applied in a gateway station. The device includes: a receiving module configured to receive a first message sent by a satellite, where the first message includes an emergency service willingness indication for indicating that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, where the first type of gateway station has a contract with the satellite and the second type of gateway station has no contract with the satellite; a connection establishment module configured to establish an emergency service connection with the satellite if the gateway station belongs to the second type of gateway station.

[0008] In a fifth aspect, embodiments of the present disclosure provide a satellite emergency service system including a gateway station and a satellite. The satellite is configured to execute the emergency service method disclosed in the first aspect embodiments of the present disclosure, and the gateway station is configured to execute the emergency service method disclosed in the second aspect embodiments of the present disclosure.

[0009] In a sixth aspect, embodiments of the present disclosure provide a communication device including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the emergency service method disclosed in the embodiments of the present disclosure is implemented.

[0010] In a seventh aspect, embodiments of the present disclosure provide a chip including one or more interface circuits and one or more processors. The interface circuit is configured to receive a signal from the memory of a communication device and send the received signal to the processor. The received signal includes computer instructions stored in the memory. When the processor executes the computer instructions, the communication device is caused to execute the emergency service method disclosed in the embodiments of the present disclosure.

[0011] In an eighth aspect, embodiments of the present disclosure provide a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the emergency service method disclosed in the embodiments of the present disclosure is implemented.

[0012] In a ninth aspect, an embodiment of the present disclosure provides a computer program product, which, when executed by an instruction processor in the computer program product, implements the emergency service method disclosed in the embodiments of the present disclosure.

[0013] The technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects:

[0014] The satellite sends a first message carrying an indication of the willingness for emergency services to indicate its willingness to establish an emergency service connection with a first type of gateway station or a second type of gateway station, and can establish an emergency service connection with a gateway station belonging to the second type of gateway station. Thus, an emergency service connection can be established between an unsubscribed satellite and a gateway station, thereby improving the service capacity and scope of satellite communication in emergency services.

[0015] The additional aspects and advantages of the present disclosure will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, where:

[0017] Figure 1 is a schematic diagram of the architecture of a satellite communication system provided by an embodiment of the present disclosure;

[0018] Figure 2 is a schematic flowchart of an emergency service method provided by an embodiment of the present disclosure;

[0019] Figure 3 is a schematic flowchart of another emergency service method provided by an embodiment of the present disclosure;

[0020] Figure 4 is a schematic flowchart of another emergency service method provided by an embodiment of the present disclosure;

[0021] Figure 5 is a schematic flowchart of another emergency service method provided by an embodiment of the present disclosure;

[0022] Figure 6 is a schematic flowchart of another emergency service method provided by an embodiment of the present disclosure;

[0023] Figure 7 is a schematic flowchart of another emergency service method provided by an embodiment of the present disclosure;

[0024] Figure 8 is an interaction flowchart between a terminal, a satellite, a gateway station, and an IMS core network provided by an embodiment of the present disclosure;

[0025] Figure 9 Structural schematic diagram of an emergency service device provided by an embodiment of the present disclosure;

[0026] Figure 10 Structural schematic diagram of another emergency service device provided by an embodiment of the present disclosure;

[0027] Figure 11 Block diagram of a communication device for implementing an emergency service method shown according to an exemplary embodiment;

[0028] Figure 12 Structural schematic diagram of a chip shown according to an exemplary embodiment. Detailed implementation manners

[0029] The embodiments of the present disclosure will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure, and should not be construed as a limitation to the present disclosure.

[0030] To better understand an emergency service method disclosed by an embodiment of the present disclosure, a satellite communication system applicable to the embodiment of the present disclosure will be described first below.

[0031] Please refer to Figure 1 , Figure 1 , which is an architecture schematic diagram of a satellite communication system provided by an embodiment of the present disclosure. The satellite communication system may include a satellite 101, a terminal 102, and a gateway station 103.

[0032] The satellite 101 in the embodiment of the present disclosure is an entity for transmitting or receiving signals. The specific technologies and specific device forms adopted by the satellite are not limited in the embodiments of the present disclosure.

[0033] The terminal 102 in the embodiment of the present disclosure refers to a processing device for communicating with a satellite within the satellite coverage beam range. For example, the terminal may be an automobile with satellite communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), etc. The specific technologies and specific device forms adopted by the terminal are not limited in the embodiments of the present disclosure.

[0034] The gateway station 103 in the embodiment of the present disclosure is connected to the satellite 101.

[0035] In an embodiment of the present disclosure, the gateway station 103 is a node for sending and receiving data on the ground in the satellite communication system. The specific technologies and specific device forms adopted by the gateway station are not limited in the embodiments of the present disclosure.

[0036] It can be understood that the satellite communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. A person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0037] Based on the above satellite communication system, the terminal initiates an emergency service request to the satellite, and the satellite forwards the corresponding emergency service request to the IMS core network through the emergency service connection between the satellite and the contracted gateway station, and the IMS core network connects to the Public Safety Answering Point (PSAP), thereby establishing an emergency service session between the terminal and the PSAP. However, in the current emergency service solution, emergency services can only be performed between the contracted satellite and the gateway station, which leads to the limited service capacity and scope of satellite communication in emergency services. Therefore, how to improve the service capacity and limited scope of satellite communication in emergency services is a technical problem that needs to be solved urgently.

[0038] In order to solve this technical problem, the embodiments of the present disclosure provide an emergency service method, apparatus, device, chip and storage medium, so that an emergency service connection can be established between uncontracted satellites and gateways, thereby improving the service capabilities and scope of satellite communications in emergency services.

[0039] The emergency service method, apparatus, device, chip and storage medium of the embodiments of the present disclosure are described below with reference to the accompanying drawings.

[0040] Figure 2 A flowchart of an emergency service method provided in an embodiment of the present disclosure. It should be noted that the emergency service method in this embodiment is executed by an emergency service device. The emergency service device may be a satellite, or may be configured in a satellite. The present disclosure embodiment is described by taking the emergency service device as a satellite as an example.

[0041] like Figure 2 As shown, the emergency service method may include the following steps:

[0042] Step 201: Send a first message, wherein the first message includes an emergency service willingness indication, wherein the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first-category gateway or a second-category gateway, wherein the first-category gateway has a contract with the satellite, and the second-category gateway has no contract with the satellite.

[0043] The first type of gateway station may also be called a contracted gateway station or other names, which is not specifically limited in this embodiment.

[0044] Among them, the second type of gateway station can also be called a non - subscribed gateway station or other names, and this embodiment does not make specific limitations on this.

[0045] Among them, the first message in this example can be a broadcast message.

[0046] In one example, the satellite can periodically send the first message.

[0047] In an embodiment of the present disclosure, when the value of the emergency service willingness indication is 1 or true, it means that the satellite is willing to establish an emergency service connection with the first type of gateway station or the second type of gateway station.

[0048] Step 202, establish an emergency service connection with a gateway station, where the gateway station belongs to the second type of gateway station.

[0049] In an embodiment of the present disclosure, a possible implementation manner of establishing an emergency service connection with a gateway station is: receive a second message from the gateway station, where the second message is used to indicate that the gateway station requests to establish an emergency service connection with the satellite, and establish an emergency service connection with the gateway station. Thus, an emergency service connection can be quickly established between the non - subscribed satellite and the gateway station.

[0050] In an embodiment of the present disclosure, in order to further improve communication efficiency, the second message includes a first parameter, where the first parameter is used to indicate that the gateway station supports providing emergency services for the satellite.

[0051] In one example, when the value of the first parameter is the target value, it means that the gateway station supports providing emergency services for the satellite.

[0052] Among them, the target value is preset according to requirements.

[0053] For example, the first parameter is a Cause parameter. Correspondingly, when the value of the Cause parameter is emergency, 1, or true, it means that the gateway station supports providing emergency services for the satellite.

[0054] For another example, the first parameter can be a Cause field. Correspondingly, when the value of the Cause field is emergency, 1, or true, it means that the gateway station supports providing emergency services for the satellite.

[0055] Among them, it can be understood that after the satellite establishes an emergency service connection with the non - subscribed gateway station, correspondingly, the terminal located in the cell covered by the satellite conducts an emergency service session with the public safety answering node through the emergency service connection.

[0056] The emergency service method provided by the present disclosure enables a satellite to indicate its willingness to establish an emergency service connection with a first type of gateway station or a second type of gateway station by sending a first message carrying an emergency service willingness indication, and can establish an emergency service connection with a gateway station belonging to the second type of gateway station. Thereby, an emergency service connection can be established between an unsigned satellite and a gateway station, so as to improve the service capacity and scope of satellite communication in emergency services.

[0057] It should be noted that, in the embodiments of the present disclosure, some or all of the steps and their optional implementation manners can be arbitrarily combined with some or all of the steps in other embodiments, and can also be arbitrarily combined with the optional implementation manners in other embodiments.

[0058] In the embodiments of the present disclosure, each step and its optional implementation manner can also be implemented independently.

[0059] Figure 3 It is a schematic flowchart of another emergency service method provided by the embodiments of the present disclosure.

[0060] As Figure 3 shown, the emergency service method may include the following steps:

[0061] Step 301, send a first message, where the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, where the first type of gateway station has a contract with the satellite, and the second type of gateway station has no contract with the satellite.

[0062] It should be noted that, for the specific implementation manner of step 301, reference can be made to the relevant descriptions in other embodiments, which will not be elaborated here.

[0063] Step 302, receive a second message from the gateway station, and the second message is used to indicate that the gateway station requests to establish an emergency service connection with the satellite.

[0064] In an embodiment of the present disclosure, in order to further improve communication efficiency, the second message includes a first parameter, where the first parameter is used to indicate that the gateway station supports providing emergency services for the satellite.

[0065] In one example, when the value of the first parameter is a target value, it indicates that the gateway station supports providing emergency services for the satellite.

[0066] For example, the first parameter is a Cause parameter. Correspondingly, when the value of the Cause parameter is emergency, 1 or true (TURE), it indicates that the gateway station supports providing emergency services for the satellite.

[0067] In one embodiment of the present disclosure, in order to further enhance the reliability of emergency communication, the second message may further include at least one of the following information: a first emergency service support indication, a second emergency service support indication, and an emergency phone list.

[0068] Wherein, the first emergency service support indication indicates whether the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway supports emergency services.

[0069] For example, ims-EmergencySupport may be used to represent the first emergency service support indication. Correspondingly, when ims-EmergencySupport is set to true, it indicates that the IMS core network supports emergency services.

[0070] Wherein, the second emergency service support indication indicates whether the IMS core network supports emergency call services.

[0071] For example, eCallOverIMS-Support is used to represent the second emergency service support indication. Correspondingly, when eCallOverIMS-Support is set to true (TURE), it indicates that the IMS core network supports emergency call services.

[0072] Wherein, the emergency phone list includes the emergency phone numbers corresponding to each country.

[0073] For example, the emergency phone list may include: the emergency phone number corresponding to China is 110, the emergency phone number corresponding to the United States is 911, etc.

[0074] Step 303, when it is determined that the second message includes the first parameter, send a third message to the gateway, where the third message is used to indicate that the satellite agrees to establish an emergency service connection with the gateway.

[0075] Step 304, receive a fourth message sent by the gateway, where the fourth message is used to indicate that the emergency service connection is established.

[0076] In one embodiment of the present disclosure, the second message, the third message, and the fourth message may be a Radio Resource Control (RRC) connection establishment request message, an RRC connection establishment response message, and an RRC connection establishment completion message, respectively.

[0077] Based on the above description, it can be seen that in this embodiment, the satellite indicates its willingness to establish an emergency service connection with a first type of gateway station or a second type of gateway station by sending a first message carrying an emergency service willingness indication, and can receive a second message sent by a gateway station belonging to the second type of gateway station for requesting to establish an emergency service connection with the satellite. When it is determined that the second message includes a first parameter, the satellite sends a third message to the gateway station and receives a fourth message sent by the gateway station. Thus, an emergency service connection can be established between the unsubscribed satellite and the gateway station, thereby improving the service capacity and scope of satellite communication in emergency services.

[0078] Figure 4 It is a schematic flowchart of another emergency service method provided by an embodiment of the present disclosure.

[0079] As Figure 4 shown, the emergency service method may include the following steps:

[0080] Step 401: Send a first message, where the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station. The first type of gateway station has a subscription with the satellite, and the second type of gateway station has no subscription with the satellite.

[0081] Step 402: Receive a Radio Resource Control (RRC) connection establishment request message from the gateway station. The RRC connection establishment request message is used to indicate that the gateway station requests to establish an emergency service connection with the satellite. The RRC connection establishment request message includes a first parameter and at least one of the following information: The emergency service connection establishment request message also carries at least one of the following information: a first emergency service support indication, a second emergency service support indication, and an emergency phone list.

[0082] In one example, when the value of the first parameter is a target value, it indicates that the gateway station supports providing emergency services for the satellite.

[0083] For example, the first parameter is a Cause parameter. Correspondingly, when the value of the Cause parameter is emergency, 1, or true, it indicates that the gateway station supports providing emergency services for the satellite.

[0084] The first emergency service support indication indicates whether the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway station supports emergency services.

[0085] For example, ims-EmergencySupport can be used to represent the first emergency service support indication. Correspondingly, when ims-EmergencySupport is set to true, it indicates that the IMS core network supports emergency services.

[0086] Among them, the second emergency service support indication indicates whether the IMS core network supports emergency call services.

[0087] For example, eCallOverIMS-Support is used to represent the second emergency service support indication. Correspondingly, when eCallOverIMS-Support is set to true, it indicates that the IMS core network supports emergency call services.

[0088] Among them, the emergency phone list includes the emergency phone numbers corresponding to each country.

[0089] For example, the emergency phone list may include: the emergency phone number corresponding to China is 110, the emergency phone number corresponding to the United States is 911, etc.

[0090] Step 403, when it is determined that the RRC establishment request message includes the first parameter, send an RRC connection establishment response message to the gateway station, where the RRC connection establishment response message is used to indicate that the satellite agrees to establish an emergency service connection with the gateway station.

[0091] Step 404, receive the RRC connection establishment completion message sent by the gateway station, where the RRC connection establishment completion message is used to indicate that the emergency service connection is established.

[0092] Step 405, send a fifth message to the terminal, where the fifth message includes at least one of the following information: the first parameter, the first emergency service support indication, the second emergency service support indication, and the emergency phone list.

[0093] In an embodiment of the present disclosure, the second message may be a System Information Block (SIB), or a Master Information Block (MIB).

[0094] In this embodiment, a terminal in the cell covered by the satellite receives the fifth message, and learns about the ability of the gateway station to support providing emergency services for the satellite, the emergency phone list, and / or the IMS core network to support emergency services through the information carried in the fifth message.

[0095] In an embodiment of the present disclosure, when the first emergency service support indication is carried in the fifth message, the terminal can determine whether the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway station supports emergency services based on the first emergency service support indication.

[0096] In an embodiment of the present disclosure, when the first emergency service support indication is set to true, it can be determined that the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway supports emergency services.

[0097] In addition, when the first emergency service support indication is set to false, it can be determined that the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway does not support emergency services.

[0098] In an embodiment of the present disclosure, when the second emergency service support indication is carried in the fifth message, the terminal can determine whether the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway supports emergency call services based on the second emergency service support indication.

[0099] In an embodiment of the present disclosure, when the second emergency service support indication is set to true, it can be determined that the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway supports emergency calls.

[0100] In addition, when the second emergency service support indication is set to false, it can be determined that the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway does not support emergency calls.

[0101] In an embodiment of the present disclosure, when an emergency phone list is carried in the fifth message, correspondingly, the terminal can determine whether the dialed phone number is an emergency number based on the settings of its Subscriber Identity Module (SIM) card. If it is an emergency number, the terminal can initiate an emergency service or call process.

[0102] Step 406: Receive an emergency service session request sent by a terminal located in a cell covered by a satellite, and forward the emergency session request to the gateway through an emergency service connection, so that the gateway forwards the emergency service request to the IMS core network, and the IMS core network connects to the PSAP, thereby establishing an emergency service session between the terminal and the PSAP.

[0103] Based on the above description, it can be seen that in this embodiment, the satellite sends a first message carrying an emergency service willingness indication to indicate its willingness to establish an emergency service connection with a first type of gateway or a second type of gateway, and can establish an emergency service connection with a gateway belonging to the second type of gateway. Thus, an emergency service connection can be established between an unsubscribed satellite and a gateway, thereby solving the current situation of the service capabilities and scope of satellite communication in emergency services, achieving more efficient interconnection and communication, and meeting the urgent needs of emergency communication.

[0104] Based on any of the above embodiments, in order to facilitate the gateway station to quickly determine whether a satellite has signed a contract with it and improve communication efficiency, in an embodiment of the present disclosure, the first message further includes at least one of the following information: the satellite identifier of the satellite, the cell identifier of the cell covered by the satellite, the base station identifier of the base station corresponding to the satellite, wherein at least one of the satellite identifier, the cell identifier, and the base station identifier is used for the gateway station to determine whether the satellite has signed a contract with it.

[0105] Wherein, for the specific implementation manner of the gateway station to determine whether the satellite has signed a contract with it based on at least one of the satellite identifier, the cell identifier, and the base station identifier, reference may be made to the relevant descriptions in other embodiments, which will not be elaborated herein.

[0106] Based on any of the above embodiments, in order to ensure the stability and reliability during the emergency service communication process, the first message may further include an emergency service dedicated frequency band Emergency Freq, wherein the emergency service connection is established based on the emergency service dedicated frequency band.

[0107] Wherein, the emergency service dedicated frequency band refers to a specific frequency range dedicated for emergency services in wireless communication.

[0108] Figure 5 The flowchart of another emergency service method provided by the embodiments of the present disclosure is shown. It should be noted that, in this embodiment, the emergency service method is executed by an emergency service device. The emergency service device may be a gateway station or configured in the gateway station. In the embodiments of the present disclosure, the emergency service device is taken as an example of the gateway station for illustration.

[0109] As Figure 5 shown, the emergency service method may include the following steps:

[0110] Step 501, receive a first message sent by the satellite, wherein the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, wherein the first type of gateway station indicates that it has signed a contract with the satellite, and the second type of gateway station indicates that it has not signed a contract with the satellite.

[0111] Wherein, the first message in this example may be a first broadcast message.

[0112] In an embodiment of the present disclosure, when the value of the emergency service willingness indication is 1 or true, it indicates that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station.

[0113] Step 502, if the gateway station belongs to the second type of gateway station, establish an emergency service connection with the satellite.

[0114] In one embodiment of the present disclosure, when the gateway station belongs to the second type of gateway station and it is determined that the gateway station is willing to provide emergency services for the satellite, an emergency service connection is established with the satellite.

[0115] In one embodiment of the present disclosure, a possible implementation manner of establishing an emergency service connection with the satellite may be: sending a second message to the satellite, where the second message is used to indicate that the gateway station requests to establish an emergency service connection with the satellite, and an emergency service connection is established with the satellite.

[0116] In one embodiment of the present disclosure, the second message includes a first parameter, where the first parameter is used to indicate that the gateway station supports providing emergency services for the satellite.

[0117] In one embodiment of the present disclosure, when the value of the first parameter is a target value, it indicates that the gateway station supports providing emergency services for the satellite.

[0118] For example, the first parameter is a Cause parameter. Correspondingly, when the value of the Cause parameter is emergency, 1, or true (TURE), it indicates that the gateway station supports providing emergency services for the satellite.

[0119] Another example is that the first parameter may be a Cause field. When the value of the Cause field is emergency, 1, or true (TURE), it indicates that the gateway station supports providing emergency services for the satellite.

[0120] In one embodiment of the present disclosure, in order to further enhance the reliability of emergency communication, the above-mentioned second message may further include at least one of the following information: a first emergency service support indication, a second emergency service support indication, and an emergency phone list.

[0121] Among them, the first emergency service support indication indicates whether the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway station supports emergency services.

[0122] For example, ims-EmergencySupport may be used to represent the first emergency service support indication. Correspondingly, when ims-EmergencySupport is set to true, it indicates that the IMS core network supports emergency services.

[0123] Among them, the second emergency service support indication indicates whether the IMS core network supports emergency call services.

[0124] For example, eCallOverIMS-Support is used to indicate the second emergency service support indication. Correspondingly, when eCallOverIMS-Support is set to true, it indicates that the IMS core network supports the emergency call service.

[0125] Among them, the emergency call list includes the emergency telephone numbers corresponding to each country.

[0126] For example, the emergency call list may include: the emergency telephone number corresponding to China is 110, and the emergency telephone number corresponding to the United States is 911, etc.

[0127] Among them, the second message in this example is a system message. For example, the second message may be a System Information Block (SIB), or a Master Information Block (MIB).

[0128] Among them, it can be understood that in the case where there is no emergency service willingness indication in the first message, the gateway station can process the first message through existing technologies. For example, the gateway station can perform corresponding operations based on the content data in the first message to obtain an execution result and return the execution result to the satellite, or, in the case where the gateway station determines that the satellite sending the first message is not its corresponding subscribed satellite, the gateway station may not respond to the first message.

[0129] Among them, the emergency service connection refers to a communication connection established to provide emergency services.

[0130] Among them, it can be understood that the gateway station belonging to the second type of gateway station means that the gateway station is not subscribed to the satellite. That is to say, the satellite is not the subscribed satellite of the gateway station.

[0131] Among them, the subscribed satellite refers to the satellite with which the gateway station has signed a service contract with the satellite operator.

[0132] In an embodiment of the present disclosure, it can be determined whether the function of the gateway station willing to provide emergency services is in an on state. If it is in an on state, it is determined that the gateway station is willing to provide emergency services.

[0133] In an embodiment of the present disclosure, the gateway station belongs to the first type of gateway station. That is to say, when it is determined that the gateway station is subscribed to the satellite, that is, when it is determined that the satellite is its subscribed satellite, the gateway station can provide emergency services for the satellite. Correspondingly, the gateway station can establish an emergency service connection with the satellite.

[0134] The emergency service method provided by the embodiments of the present disclosure receives a first message with an emergency service willingness indication in the message sent by the satellite, and a gateway station not subscribed to the satellite establishes an emergency service connection with the satellite. Thus, an emergency service connection can be established between the unsubscribed satellite and the gateway station, thereby improving the service capacity and scope of satellite communication in emergency services.

[0135] Figure 6 It is a schematic flowchart of another emergency service method provided by the embodiments of the present disclosure.

[0136] As Figure 6 shown, the emergency service method may include the following steps:

[0137] Step 601, receive a first message sent by the satellite, where the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, where the first type of gateway station indicates being subscribed to the satellite, and the second type of gateway station indicates not being subscribed to the satellite.

[0138] It should be noted that for the specific implementation manner of step 601, reference can be made to the relevant descriptions in other embodiments, which will not be elaborated here.

[0139] Step 602, determine whether the satellite is subscribed to the gateway station according to at least one of the satellite identifier of the satellite carried in the first message, the cell identifier of the cell covered by the satellite, and the base station identifier of the base station corresponding to the satellite. If not, execute step 603.

[0140] It can be understood that if it is determined that the satellite is not subscribed to the gateway station, it means that the gateway station belongs to the second type of gateway station. That is, the gateway station is not subscribed to the satellite.

[0141] In an embodiment of the present disclosure, when the satellite identifier is carried in the first message, it can be determined whether the satellite is subscribed to the gateway station according to whether the satellite identifier is in the subscribed satellite list of the gateway station.

[0142] The subscribed satellite list includes the satellite identifiers of the satellites subscribed to the gateway station.

[0143] Specifically, if the satellite identifier is in the subscribed satellite list of the gateway station, it is determined that the satellite is subscribed to the gateway station. Additionally, if the satellite identifier is not in the subscribed satellite list of the gateway station, it is determined that the satellite is not subscribed to the gateway station.

[0144] In another embodiment of the present disclosure, when the cell identifier of the cell covered by the satellite is carried in the first message, it can be determined whether the satellite is subscribed to the gateway station according to whether the cell identifier is in the cell list corresponding to the gateway station.

[0145] Among them, the cell list corresponding to the gateway station includes: the cell identifiers of the cells covered by the contracted satellites of the gateway station.

[0146] Specifically, if the cell identifier is in the cell list corresponding to the gateway station, it is determined that the satellite is contracted with the gateway station. Additionally, if the cell identifier is not in the cell list corresponding to the gateway station, it is determined that the satellite is not contracted with the gateway station.

[0147] In an embodiment of the present disclosure, when the base station identifier is carried in the first message, it can be determined whether the satellite is contracted with the gateway station according to whether the base station identifier is in the base station list of the contracted satellites of the gateway station.

[0148] Among them, the base station list includes: the base station identifiers of the base stations corresponding to the contracted satellites.

[0149] Specifically, if the base station identifier is in the base station list of the gateway station, it is determined that the satellite is contracted with the gateway station. Additionally, if the base station identifier is not in the base station list of the gateway station, it is determined that the satellite is not contracted with the gateway station.

[0150] In an embodiment of the present disclosure, when the satellite identifier, cell identifier, and base station identifier carried in the first message are present, it can be determined whether the satellite is contracted with the gateway station according to the satellite identifier, cell identifier, and base station identifier.

[0151] As an example, the satellite identifier, cell identifier, and base station identifier of the pre - saved contracted satellites can be respectively matched with the satellite identifier, cell identifier, and base station identifier carried in the first message. If all three match, it is determined that the satellite is contracted with the gateway station. Additionally, if at least one of the three does not match, it is determined that the satellite is not contracted with the gateway station.

[0152] In this embodiment, in order to enable the gateway station to conveniently manage the non - contracted satellites it serves, correspondingly, the gateway station can also add the combined result of at least one of the satellite identifier, cell identifier, and base station identifier to a preset emergency service relationship table.

[0153] Among them, the emergency service relationship table is used to record the relevant information of the non - contracted satellites served by the gateway station.

[0154] Based on the above description, it can be seen that in this example, according to at least one of the satellite identifier, the cell identifier of the cell covered by the satellite, and the base station identifier of the base station corresponding to the satellite carried in the first message, it is determined whether the satellite is contracted with the gateway station. Thus, the efficiency of the gateway station in determining whether the satellite is contracted with the gateway station can be improved, and further, the communication efficiency between the satellite and the gateway station can be improved.

[0155] Step 603: Establish an emergency service connection with the satellite.

[0156] It should be noted that for the specific implementation of Step 603, reference can be made to the relevant descriptions in other embodiments, which will not be elaborated here.

[0157] In the emergency service method provided by the embodiments of the present disclosure, when it is determined that there is an emergency service willingness indication in the message sent by the satellite, the gateway station determines whether the satellite has a contract with the gateway station based on at least one of the satellite identifier, the cell identifier of the cell covered by the satellite, and the base station identifier of the base station corresponding to the satellite carried in the first message. In the case where it is determined that the satellite does not have a contract with the gateway station, an emergency service connection is established with the satellite. Thus, an emergency service connection can be established between the non - contracted satellite and the gateway station, thereby improving the service capacity and scope of satellite communication in emergency services.

[0158] Based on any of the above - mentioned embodiments, in order for the gateway station to obtain more information about the satellite, the satellite type of the satellite may also be included in the first message in this example.

[0159] It should be noted that the gateway station in this example can manage the satellites with which it establishes an emergency service connection based on the satellite type.

[0160] The satellite type may include, but is not limited to, high - altitude, medium - altitude, low - altitude orbit satellites or other satellite types.

[0161] For example, the first message may include "Satellite Category", where "Satellite Category" represents the satellite type. The value of "Satellite Category" being 1 represents a low - altitude orbit satellite; the value of "Satellite Category" being 2 represents a medium - altitude orbit satellite; the value of "Satellite Category" being 3 represents a high - altitude orbit satellite; and the value of "Satellite Category" being 4 represents other satellite types.

[0162] In an embodiment of the present disclosure, in order to clearly understand the process of establishing an emergency service connection with the satellite, the following will be combined with Figure 7 to further exemplarily describe the method of this embodiment.

[0163] Figure 7 It is a schematic flowchart of another emergency service method provided by the embodiments of the present disclosure.

[0164] As Figure 7 shown, the emergency service method may include the following steps:

[0165] Step 701: Receive a first message sent by a satellite. The first message includes an emergency service willingness indication, which is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station. Here, the first type of gateway station indicates that it has a contract with the satellite, and the second type of gateway station indicates that it has no contract with the satellite.

[0166] Step 702: If the gateway station belongs to the second type of gateway station, send a second message to the satellite. The second message is used to indicate that the gateway station requests to establish an emergency service connection with the satellite.

[0167] For the specific implementation manners of steps 701 and 702, reference may be made to the relevant descriptions in other embodiments, which will not be elaborated here.

[0168] For the specific description of sending the second message to the satellite, reference may be made to the relevant descriptions in other embodiments, which will not be elaborated here.

[0169] Step 703: Receive a third message sent by the satellite. The third message is used to indicate that the satellite agrees to establish an emergency service connection with the gateway station.

[0170] It can be understood that after the satellite receives the second message, the satellite allocates specific radio link resources required for the emergency service connection. When the satellite resources are successfully prepared, the satellite can send the third message to the gateway station. Correspondingly, the gateway station receives the third message sent by the satellite.

[0171] Step 704: Send a fourth message to the satellite to establish an emergency service connection with the satellite. The fourth message is used to indicate that the emergency service connection is established.

[0172] In an embodiment of the present disclosure, the second message, the third message, and the fourth message may be a radio resource control connection (RRC) establishment request message, an RRC connection establishment response message, and an RRC connection establishment completion message, respectively.

[0173] The emergency service method provided by the embodiments of the present disclosure receives the first message sent by the satellite, and when the gateway station belongs to the second type of gateway station, sends the second message for requesting to establish an emergency service connection with the satellite to the satellite, receives the second message sent by the satellite, and sends the fourth message for indicating that the emergency service connection is established to the satellite. Thus, an emergency service connection can be established between the non - contracted satellite and the gateway station, thereby improving the service ability and scope of satellite communication in emergency services.

[0174] Based on any of the above - mentioned embodiments, in order to improve the security and reliability of communication, the first message further includes: an emergency service dedicated frequency band, and the emergency service connection is established based on the emergency service dedicated frequency band.

[0175] Among them, the emergency service dedicated frequency band refers to a specific frequency range allocated specifically for emergency services in wireless communications.

[0176] In order to clearly understand the present disclosure, the following Figure 8 The interaction process between the terminal, satellite, gateway and IMS core network involved in providing emergency services in satellite communications is described in an exemplary manner. The terminal in this example may be a car with satellite communication function, a smart car, a mobile phone, a wearable device, a tablet computer, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.

[0177] Figure 8 The flowchart is an interaction flow between the terminal, satellite, gateway and IMS core network provided in the embodiment of the present disclosure.

[0178] like Figure 8 As shown, the method may include:

[0179] Step 801: The satellite sends a first message, wherein the first message carries an emergency service willingness indication, wherein the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first-category gateway station or a second-category gateway station, wherein the first-category gateway station has a contract with the satellite, and the second-category gateway station has no contract with the satellite.

[0180] In one embodiment of the present disclosure, in addition to the emergency service willingness indication, the first message may also include at least one of the following information: satellite type Satellite Category, cell identifier cellID, satellite identifier SateID and base station identifier Global gNB ID, etc.

[0181] In this example, the first message may be a broadcast message.

[0182] In step 802, the gateway receives a first message sent by the satellite, and when it is determined that the first message includes an emergency service willingness indication, or the value of the emergency service willingness indication is 1 or true, it determines whether to sign a contract with the satellite based on at least one of the satellite type Satellite Category, cell identifier cellID, satellite identifier SateID and base station identifier Global gNBID carried in the first message. If not, execute step 803.

[0183] As an example, the gateway station can receive messages on multiple frequency bands and detect whether there is an indication of the willingness for emergency services. If the willingness indication exists, it is determined whether to sign a contract with the satellite based on the cell ID or Sate ID or Global gNB ID; optionally, it is determined whether to sign a contract with the satellite based on the combination of cell ID and Global gNB ID or the combination of cell ID and Sate ID or the combination of Sate ID and Global gNB ID; if so, the cell ID or Sate ID or Global gNB ID or the optional combined parameters are locally recorded as the serving cell list, and normal services and emergency services can be provided; otherwise, if the local area of the gateway station only supports emergency services, the cell ID or Sate ID or Global gNB ID or the optional combined parameters are recorded as the emergency service cell list.

[0184] In an embodiment of the present disclosure, in order to improve the security and reliability of communication, an emergency service dedicated frequency band may also be carried in the above first message, so that the corresponding gateway station can establish an emergency service connection with the satellite based on the emergency service dedicated frequency band.

[0185] In an implementation of the present disclosure, when it is determined that the first message includes an indication of the willingness for emergency services, or when the value of the indication of the willingness for emergency services is 1 or true, it can be determined whether to sign a contract with the satellite according to at least one of the satellite type SatelliteCategory, cell ID, satellite ID SateID, and base station ID Global gNB ID carried in the first message. When it is determined to sign a contract with the satellite, correspondingly, the gateway station can provide emergency services for the satellite, and correspondingly, the gateway station can establish an emergency service connection with the satellite.

[0186] In an embodiment of the present disclosure, when the gateway station determines that the first message does not include the indication of the willingness for emergency services, or when the first message includes the indication of the willingness for emergency services, and the value of the indication of the willingness for emergency services is not 1 or true, it can be determined whether to sign a contract with the satellite according to at least one of the satellite type SatelliteCategory, cell ID, satellite ID SateID, and base station ID Global gNB ID carried in the first message of the willingness for emergency services; when it is determined to sign a contract with the satellite, that is, when it is determined that the satellite is a contracted satellite, the gateway station can provide normal services and emergency services. Additionally, if it is determined that no contract is signed with the satellite, that is, when it is determined that the satellite is a non - contracted satellite, the gateway station does not provide any services.

[0187] Step 803: The gateway station sends a second message to the satellite. The first parameter carried in the second message is the target value, and the second message also carries at least one of the following information: the first emergency service support indication, the second emergency service support indication, and the emergency phone list. The fact that the first parameter is the target value indicates that the gateway station supports providing emergency services for the satellite.

[0188] In an example of the present disclosure, when the gateway station determines that the satellite is not its subscribed satellite, it can determine whether it can provide emergency services for the satellite. When it determines that it can provide emergency services for the satellite, the gateway station sends a second message to the satellite.

[0189] Among them, the second message is used to indicate that the gateway station requests to establish an emergency service connection with the satellite. In some examples, the second message can be referred to as an emergency service connection establishment request message.

[0190] Among them, the target value is set in advance, and this embodiment does not specifically limit the target value.

[0191] For example, the first parameter is: the Cause parameter, correspondingly, the Cause parameter is set to "emergency". The fact that the Cause parameter is set to "emergency" indicates that the gateway station supports providing an emergency service connection for the satellite.

[0192] For example, the second message can be a Radio Resource Control connection establishment request message RRCsetupRequest, including the parameter Cause = "emergency".

[0193] Among them, the first emergency service support indication indicates whether the Internet Protocol Multimedia Subsystem IMS core network corresponding to the gateway station supports emergency services.

[0194] Among them, the second emergency service support indication indicates whether the IMS core network supports emergency call services.

[0195] For example, "ims-EmergencySupport" can be used to represent the first emergency service support indication, and "eCallOverIMS-Support" can be used to represent the second emergency service support indication.

[0196] Step 804: After receiving the second message, the satellite sends a third message. The third message is used to indicate that the satellite agrees to establish an emergency service connection with the gateway station.

[0197] In some examples, the third message can also be referred to as an emergency service connection establishment response message.

[0198] For example, the emergency service connection establishment response message can be RRCsetupResponse.

[0199] Step 805, the gateway station sends a fourth message to the satellite, where the fourth message is used to indicate that the emergency service connection establishment is completed.

[0200] Correspondingly, after receiving the third message and completing the establishment of the emergency service connection, the gateway station sends a fourth message to the satellite.

[0201] In some examples, the fourth message can also be referred to as the emergency service connection establishment completion message. For example, the emergency service connection establishment completion message can be RRCSetupComplete.

[0202] Step 806, the satellite sends a fifth message to the terminal, where the fifth message can include at least one of the following information: a first parameter, a first emergency service support indication, a second emergency service support indication, and an emergency phone list.

[0203] For example, in an embodiment of the present disclosure, when the first emergency service support indication is set to true, it can be determined that the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway station supports emergency services.

[0204] In an embodiment of the present disclosure, when the first emergency service support indication is set to false, it can be determined that the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway station does not support emergency services.

[0205] In an embodiment of the present disclosure, when the second emergency service support indication is set to true, it can be determined that the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway station supports emergency calls.

[0206] In addition, when the second emergency service support indication is set to false, it can be determined that the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway station does not support emergency calls.

[0207] In this example, the fifth message can be SIB or MIB.

[0208] Step 807, the terminal camps on the cell covered by the satellite.

[0209] Step 808, when there is an emergency service, the terminal initiates the emergency service, the terminal establishes an emergency service connection with the satellite, and the terminal establishes an emergency service session with the IMS core network.

[0210] The emergency service method provided by the implementation of the present disclosure enables an emergency service connection to be established between an unsubscribed satellite and a gateway station, and a terminal can establish an emergency service session with the IMS core network through this emergency service connection, thereby solving the technical problem of limited service capabilities and scope in satellite communication for emergency services, achieving more efficient interconnection and meeting the urgent needs of emergency communication.

[0211] Figure 9 FIG. is a schematic structural diagram of an emergency service device provided by an embodiment of the present disclosure. It should be noted that this emergency service device is applied in a satellite.

[0212] As Figure 9 shown, the emergency service device 900 includes: a sending module 901 and a connection establishment module 902, where:

[0213] The sending module 901 is configured to send a first message, where the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, where the first type of gateway station is subscribed to the satellite, and the second type of gateway station is not subscribed to the satellite;

[0214] The connection establishment module 902 is configured to establish an emergency service connection with the gateway station, where the gateway station belongs to the second type of gateway station.

[0215] In an embodiment of the present disclosure, the connection establishment module 902 is specifically configured to: receive a second message from the gateway station, and the second message is used to indicate that the gateway station requests to establish an emergency service connection with the satellite.

[0216] In an embodiment of the present disclosure, the first message further includes at least one of the following information: the satellite identifier of the satellite, the cell identifier of the cell covered by the satellite, the base station identifier of the base station corresponding to the satellite, where at least one of the satellite identifier, the cell identifier, and the base station identifier is used for the gateway station to determine whether it is subscribed to the satellite.

[0217] In an embodiment of the present disclosure, when the value of the emergency service willingness indication is 1 or true, it indicates that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station.

[0218] In an embodiment of the present disclosure, the second message includes a first parameter, where the first parameter is used to indicate that the gateway station supports providing emergency services for the satellite.

[0219] In an embodiment of the present disclosure, the connection establishment module 902 is further configured to: when it is determined that the second message includes a first parameter, send a third message to the gateway station, where the third message is used to indicate that the satellite agrees to establish an emergency service connection with the gateway station; receive a fourth message sent by the gateway station, where the fourth message is used to indicate that the emergency service connection is established.

[0220] In an embodiment of the present disclosure, when the value of the first parameter is a target value, it indicates that the gateway station supports providing emergency services for the satellite.

[0221] In an embodiment of the present disclosure, the second message, the third message, and the fourth message are respectively a radio resource control connection (RRC) establishment request message, an RRC connection establishment response message, and an RRC connection establishment completion message.

[0222] In an embodiment of the present disclosure, the first message further includes: a dedicated frequency band for emergency services, where the emergency service connection is established based on the dedicated frequency band for emergency services.

[0223] In an embodiment of the present disclosure, the second message further includes at least one of the following information:

[0224] A first emergency service support indication, where the first emergency service support indication indicates whether the Internet protocol multimedia subsystem (IMS) core network corresponding to the gateway station supports emergency services;

[0225] A second emergency service support indication, where the second emergency service support indication indicates whether the IMS core network supports emergency call services;

[0226] An emergency phone list.

[0227] In an embodiment of the present disclosure, after establishing an emergency service connection with the gateway station, the method further includes:

[0228] Sending a fifth message to the terminal, where the fifth message includes at least one of the following information: the first parameter, the first emergency service support indication, the second emergency service support indication, and the emergency phone list.

[0229] In an embodiment of the present disclosure, the second message is a system information block (SIB), or a master information block (MIB).

[0230] It should be noted that the foregoing explanation of the embodiment of the emergency service method also applies to the emergency service device of this embodiment, and will not be elaborated here.

[0231] The emergency service device provided by the embodiments of the present disclosure enables a satellite to indicate its willingness to establish an emergency service connection with a first type of gateway station or a second type of gateway station by sending a first message carrying an emergency service willingness indication, and can establish an emergency service connection with a gateway station belonging to the second type of gateway station. Thereby, an emergency service connection can be established between an unsubscribed satellite and a gateway station, thus improving the service capacity and scope of satellite communication in emergency services.

[0232] To implement the above embodiments, the present disclosure also proposes an emergency service device.

[0233] Figure 10 FIG. is a schematic structural diagram of another emergency service device provided by the embodiments of the present disclosure. It should be noted that this emergency service device is applied in a gateway station.

[0234] As Figure 10 shown, the emergency service device 1000 includes: a receiving module 1001 and a connection establishment module 1002, where:

[0235] The receiving module 1001 is configured to receive a first message sent by a satellite, where the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station, where the first type of gateway station indicates a gateway station subscribed to the satellite, and the second type of gateway station indicates a gateway station not subscribed to the satellite;

[0236] The connection establishment module 1002 is configured to establish an emergency service connection with the satellite if the gateway station belongs to the second type of gateway station.

[0237] In an embodiment of the present disclosure, the connection establishment module 1002 is specifically configured to:

[0238] Send a second message to the satellite, where the second message is used to indicate that the gateway station requests to establish an emergency service connection with the satellite.

[0239] In an embodiment of the present disclosure, the first message further includes at least one of the following information: the satellite identifier of the satellite, the cell identifier of the cell covered by the satellite, and the base station identifier of the base station corresponding to the satellite, where at least one of the satellite identifier, the cell identifier, and the base station identifier is used by the gateway station to determine whether the satellite is subscribed to it.

[0240] In an embodiment of the present disclosure, when the value of the emergency service willingness indication is 1 or true, it indicates that the satellite is willing to establish an emergency service connection with a first type of gateway station or a second type of gateway station.

[0241] In an embodiment of the present disclosure, the second message includes a first parameter, where the first parameter is used to indicate that the gateway station supports providing emergency services for the satellite.

[0242] In one embodiment of the present disclosure, the connection establishment module 1002 is further configured to: receive a third message sent by a satellite, where the third message is used to indicate that the satellite agrees to establish an emergency service connection with the gateway station; and send a fourth message to the satellite, where the fourth message is used to indicate that the emergency service connection is established.

[0243] In one embodiment of the present disclosure, when the value of the first parameter is the target value, it indicates that the gateway station supports providing emergency services for the satellite.

[0244] In one embodiment of the present disclosure, the second message, the third message, and the fourth message are respectively a Radio Resource Control (RRC) connection establishment request message, an RRC connection establishment response message, and an RRC connection establishment completion message.

[0245] In one embodiment of the present disclosure, the second message further includes at least one of the following information:

[0246] A first emergency service support indication, where the first emergency service support indication indicates whether the Internet Protocol Multimedia Subsystem (IMS) core network corresponding to the gateway station supports emergency services;

[0247] A second emergency service support indication, where the second emergency service support indication indicates whether the IMS core network supports emergency call services;

[0248] An emergency phone list.

[0249] In one embodiment of the present disclosure, the first message further includes: a dedicated frequency band for emergency services, where the emergency service connection is established based on the dedicated frequency band for emergency services.

[0250] It should be noted that the foregoing explanation of the embodiments of the emergency service method also applies to the emergency service device of this embodiment, and will not be elaborated here.

[0251] The emergency service device according to the embodiments of the present disclosure receives a first message with an emergency service willingness indication sent by a satellite, and a gateway station that is not subscribed to the satellite establishes an emergency service connection with the satellite. Thus, an emergency service connection can be established between the unsubscribed satellite and the gateway station, thereby improving the service capacity and scope of satellite communication in emergency services.

[0252] To implement the above embodiments, the present disclosure further provides a satellite emergency service system, including a gateway station and a satellite. The satellite is configured to execute the method disclosed in the first aspect embodiments of the present disclosure, and the gateway station is configured to execute the method disclosed in the second aspect embodiments of the present disclosure.

[0253] It should be noted that for a detailed description of the method executed by the satellite, reference can be made to the relevant descriptions in other embodiments, and will not be elaborated here.

[0254] Among them, for a detailed description of the method executed by the gateway station, reference can be made to the relevant description in other embodiments, which will not be elaborated here.

[0255] The satellite emergency service system according to the embodiments of the present disclosure enables a satellite to indicate its willingness to establish an emergency service connection with a first type of gateway station or a second type of gateway station by sending a first message carrying an indication of the willingness for emergency service, and can establish an emergency service connection with a gateway station belonging to the second type of gateway station. Thereby, an emergency service connection can be established between an unsubscribed satellite and a gateway station, thus improving the service capacity and scope of satellite communication in emergency services.

[0256] To implement the above embodiments, the present disclosure also proposes a communication device.

[0257] Figure 11 It is a block diagram of a communication device for implementing an emergency service method shown according to an exemplary embodiment. Among them, it should be noted that the communication device 1100 in this embodiment can be a satellite or a gateway station. The communication device 1100 can be used to implement the method described in the above method embodiments, and specific reference can be made to the description in the above method embodiments.

[0258] As Figure 11 shown, the above communication device 1100 includes:

[0259] One or more processors 1101. The processor 1101 can be a general-purpose processor or a dedicated processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, distributed units (DU) or central units (CU), etc.), execute programs, and process program data. The processor 1101 is used to call instructions to enable the communication device 1100 to execute any of the above methods.

[0260] In some embodiments, the communication device 1100 further includes one or more memories 1102 for storing instructions. In some embodiments, all or part of the memories 1102 can also be outside the communication device 1100.

[0261] In some embodiments, the communication device 1100 further includes one or more transceivers 1103. When the communication device 1100 includes one or more transceivers 1103, communication steps such as sending and receiving in the above method are executed by the transceivers 1103, and other steps are executed by the processor 1101.

[0262] In some embodiments, the transceiver 1103 may include a receiver and a transmitter, which may be separate or integrated. In some embodiments, terms such as transceiver, transceiver unit, transceiver machine, transceiver circuit, etc. may be used interchangeably, terms such as transmitter, transmitter unit, transmitter machine, transmitter circuit, etc. may be used interchangeably, and terms such as receiver, receiver unit, receiver machine, receiver circuit, etc. may be used interchangeably.

[0263] In some embodiments, the communication device 1100 further includes one or more interface circuits 1104. The interface circuit 1104 is connected to the memory 1102. The interface circuit 1104 can be used to receive signals from the memory 1102 or other devices and can be used to send signals to the memory 1102 or other devices. For example, the interface circuit 1104 can read the instructions stored in the memory 1102 and send the instructions to the processor 1101.

[0264] The communication device 1100 described in the above embodiments may be a network device or a space terminal, but the scope of the communication device 1100 described in this disclosure is not limited thereto, and the structure of the communication device 1100 may not be restricted by Figure 11 . The communication device may be an independent device or may be a part of a larger device. For example, the communication device may be: 1) an independent integrated circuit (IC), or chip, or chip system or subsystem; (2) a collection of one or more ICs, and in some embodiments, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal, a smart terminal, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0265] It should be noted that for the implementation process and technical principle of the communication device in this embodiment, refer to the foregoing explanation of the emergency service method of the embodiments of the present disclosure, and details are not described herein again.

[0266] Embodiments of the present disclosure also propose a chip.

[0267] Figure 12 FIG. is a schematic structural diagram of a chip shown according to an exemplary embodiment.

[0268] As Figure 12 shown, the chip includes a processor 1201 and an interface circuit 1202. Among them, the number of processors 1201 may be one or more, and the number of interface circuits 1202 may be one or more.

[0269] Optionally, the chip further includes a memory 1203 for storing necessary computer programs and data; an interface circuit 1202 for receiving signals from the memory 1203 and sending signals to the processor 1201, the signals including computer instructions stored in the memory 1203, and when the processor 1201 executes the computer instructions, the communication device is caused to execute the emergency service method described in the above embodiments of the present disclosure.

[0270] To implement the above embodiments, the present disclosure also proposes a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the emergency service method of the above embodiments is implemented.

[0271] To implement the above embodiments, the present disclosure also provides a computer program product, and when the instructions in the computer program product are executed by a processor, the emergency service method of the above embodiments is executed.

[0272] It should be noted that in the description of the present disclosure, terms such as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more.

[0273] Any process or method description in the flowchart or described in other ways herein can be understood to represent a module, segment, or portion of code including one or more executable instructions for implementing a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations, where functions can be executed in a substantially simultaneous manner or in a reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0274] It should be understood that the various parts of the present disclosure can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or a combination of the following well-known technologies in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application-specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0275] Those of ordinary skill in the art of the present technology can understand that all or part of the steps carried by the method for implementing the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0276] In addition, in each embodiment of the present disclosure, each functional unit may be integrated into one processing module, may exist physically alone for each unit, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0277] The above-mentioned storage medium may be a read-only memory, a magnetic disk, an optical disc, or the like.

[0278] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0279] Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. An emergency service method, characterized in that: The method is applied in a satellite, and comprises: Sending a first message, wherein the first message includes an emergency service willingness indication, wherein the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first-category gateway station or a second-category gateway station, wherein the first-category gateway station has a contract with the satellite, and the second-category gateway station has no contract with the satellite; An emergency service connection is established with the gateway, wherein the gateway belongs to the second category of gateways.

2. The method according to claim 1, characterized in that The establishing of an emergency service connection with the gateway station comprises: A second message from the gateway is received, where the second message is used to indicate that the gateway requests to establish an emergency service connection with the satellite.

3. The method according to claim 2, characterized in that The first message also includes at least one of the following information: a satellite identifier of the satellite, a cell identifier of a cell covered by the satellite, and a base station identifier of a base station corresponding to the satellite, wherein at least one of the satellite identifier, the cell identifier, and the base station identifier is used by the gateway to determine whether the satellite has signed a contract with it.

4. The method according to claim 1, characterized in that When the value of the emergency service willingness indication is 1 or true, it indicates that the satellite is willing to establish an emergency service connection with the first type gateway station or the second type gateway station.

5. The method according to claim 2, characterized in that The second message includes a first parameter, wherein the first parameter is used to indicate that the gateway supports providing emergency services for the satellite.

6. The method according to claim 5, characterized in that The establishing of the emergency service connection with the gateway station further includes: In a case where it is determined that the second message includes the first parameter, sending a third message to the gateway, wherein the third message is used to indicate that the satellite agrees to establish an emergency service connection with the gateway; A fourth message sent by the gateway is received, wherein the fourth message is used to indicate that establishment of the emergency service connection is complete.

7. The method according to claim 5, characterized in that The value of the first parameter being a target value indicates that the gateway supports providing emergency services for the satellite.

8. The method according to claim 6, characterized in that The second message, the third message and the fourth message are respectively a radio resource control connection RRC establishment request message, an RRC connection establishment response message and an RRC connection establishment completion message.

9. The method according to claim 1, characterized in that The first message further includes: a frequency band dedicated to emergency services, wherein the emergency service connection is established based on the frequency band dedicated to emergency services.

10. The method according to claim 5, characterized in that The second message further includes at least one of the following information: A first emergency service support indication, wherein the first emergency service support indication indicates whether the Internet Protocol Multimedia Subsystem IMS core network corresponding to the gateway station supports emergency services; A second emergency service support indication, wherein the second emergency service support indication indicates whether the IMS core network supports emergency call service; Emergency phone list.

11. The method according to claim 10, characterized in that After establishing the emergency service connection with the gateway, the method further includes: A fifth message is sent to the terminal, wherein the fifth message includes at least one of the following information: the first parameter, the first emergency service support indication, the second emergency service support indication, and the emergency phone list.

12. The method according to claim 11, characterized in that The second message is a system information block SIB, or a main information block MIB.

13. An emergency service method, characterized in that: The method is applied in a gateway station, and the method comprises: Receiving a first message sent by a satellite, wherein the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first-category gateway station or a second-category gateway station, wherein the first-category gateway station indicates that it has signed a contract with the satellite, and the second-category gateway station indicates that it has not signed a contract with the satellite; If the gateway belongs to the second type of gateway, an emergency service connection is established with the satellite.

14. The method according to claim 13, characterized in that Establishing an emergency services connection with said satellite, including: A second message is sent to the satellite, wherein the second message is used to indicate that the gateway requests to establish an emergency service connection with the satellite.

15. The method according to claim 14, characterized in that The first message also includes at least one of the following information: a satellite identifier of the satellite, a cell identifier of a cell covered by the satellite, and a base station identifier of a base station corresponding to the satellite, wherein at least one of the satellite identifier, the cell identifier, and the base station identifier is used by the gateway to determine whether the satellite has signed a contract with it.

16. The method according to claim 14, characterized in that When the value of the emergency service willingness indication is 1 or true, it indicates that the satellite is willing to establish an emergency service connection with the first type gateway station or the second type gateway station.

17. The method according to claim 14, characterized in that The second message includes a first parameter, wherein the first parameter is used to indicate that the gateway supports providing emergency services for the satellite.

18. The method according to claim 17, characterized in that Establishing an emergency services connection with the satellite, further comprising: receiving a third message sent by the satellite, wherein the third message is used to indicate that the satellite agrees to establish an emergency service connection with the gateway; A fourth message is sent to the satellite, wherein the fourth message is used to indicate that establishment of the emergency service connection is complete.

19. The method according to claim 17, characterized in that The value of the first parameter being a target value indicates that the gateway supports providing emergency services for the satellite.

20. The method of claim 18, wherein: The second message, the third message and the fourth message are respectively a radio resource control connection RRC establishment request message, an RRC connection establishment response message and an RRC connection establishment completion message.

21. The method of claim 17, wherein: The second message further includes at least one of the following information: A first emergency service support indication, wherein the first emergency service support indication indicates whether the Internet Protocol Multimedia Subsystem IMS core network corresponding to the gateway station supports emergency services; A second emergency service support indication, wherein the second emergency service support indication indicates whether the IMS core network supports emergency call service; Emergency phone list.

22. The method according to any one of claims 13 to 21, characterized in that The first message further includes: a frequency band dedicated to emergency services, wherein the emergency service connection is established based on the frequency band dedicated to emergency services.

23. An emergency service device, characterized in that: The device is applied in a satellite, and comprises: a sending module, configured to send a first message, wherein the first message includes an emergency service willingness indication, wherein the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first-category gateway or a second-category gateway, wherein the first-category gateway has a contract with the satellite, and the second-category gateway has no contract with the satellite; The connection establishing module is used to establish an emergency service connection with the gateway, wherein the gateway belongs to the second category gateway.

24. An emergency service device, characterized in that: The device is applied in a gateway station, and comprises: a receiving module, configured to receive a first message sent by a satellite, wherein the first message includes an emergency service willingness indication, and the emergency service willingness indication is used to indicate that the satellite is willing to establish an emergency service connection with a first-category gateway station or a second-category gateway station, wherein the first-category gateway station has a contract with the satellite, and the second-category gateway station has no contract with the satellite; The connection establishing module is configured to establish an emergency service connection with the satellite if the gateway belongs to the second category gateway.

25. A satellite emergency service system, characterized in that: The method comprises a gateway and a satellite, wherein the satellite is used to execute the method according to any one of claims 1 to 12, and the gateway is used to execute the method according to any one of claims 13 to 22.

26. A communication device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in any one of claims 1 to 12 is implemented, or the method described in any one of claims 13 to 22 is implemented.

27. A chip, characterized in that: It comprises one or more interface circuits and one or more processors; the interface circuit is used to receive a signal from a memory of a communication device and send the received signal to the processor, the received signal comprises a computer instruction stored in the memory, and when the processor executes the computer instruction, the communication device executes the method described in any one of claims 1 to 12, or the method described in any one of claims 13 to 22.

28. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method according to any one of claims 1 to 12, or the method according to any one of claims 13 to 22.

29. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the method according to any one of claims 1 to 12, or the method according to any one of claims 13 to 22.

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