WO2023216854A1 - Unmanned aerial vehicle communication method, apparatus and system - Google Patents

Abstract

Provided in embodiments of the present application are an unmanned aerial vehicle communication method, apparatus and system. The method comprises: an unmanned aerial vehicle receives first indication information from a first communication device; the unmanned aerial vehicle determines, according to the first indication information, to broadcast a first message, the first message comprising a first identifier, the first identifier being used for indicating identity information of the unmanned aerial vehicle. By means of the method, the unmanned aerial vehicle can, according to the first indication information, determine whether to broadcast the first message, thereby improving the performance of managing the unmanned aerial vehicle.

Description

UAV communication method, device and system

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on May 10, 2022, with application number 202210507975.8 and the invention title "UAV communication method, device and system", the entire content of which is incorporated by reference. in this application.

Technical field

The embodiments of the present application relate to the field of communication technology, and in particular to UAV communication methods, devices and systems.

Background technique

The application of unmanned aerial vehicle (UAV) is becoming more and more popular in today's society. The communication environment of UAV is somewhat different from that of ordinary terminals. It is generally believed that UAV moves above the ground, and the flight height of different types of UAV is also different. May be different. As the number of UAVs increases, in some scenarios, management measures need to be taken for UAV flights. For example, management measures need to be taken for UAV flights near some infrastructure such as airports and towers.

How to improve the performance of UAV management is an urgent problem that needs to be solved.

Contents of the invention

Embodiments of the present application provide UAV communication methods, devices and systems to improve the performance of UAV management.

In the first aspect, embodiments of the present application provide a UAV communication method. The method can be executed by the UAV or by components of the UAV (such as a processor, a chip, or a chip system, etc.). The method It may include: the drone receives the first indication information from the first communication device; the drone determines to broadcast a first message according to the first indication information, the first message includes a first identifier, and the first identifier is used to indicate the unmanned aerial vehicle. machine’s identity information.

Through this method, the drone determines whether to broadcast the first message based on the first instruction information, which is beneficial to improving the performance of managing the drone. For example, the first communication device considers instructing the UAV to broadcast the first message only in a specific area under supervision, which can not only meet the supervision requirements, but also reduce the energy consumption of the UAV.

Optionally, the method further includes: the UAV receives second instruction information from the first core network device, the second instruction information is used to indicate the second area information; the UAV determines to broadcast the first message according to the first instruction information, including: : The drone determines to broadcast the first message based on the first instruction information and/or the second instruction information.

In this way, the drone can determine to broadcast the first message based on the instruction information from the first communication device and/or the core network device, and the drone can accurately determine whether to broadcast the first message, thereby reducing power consumption.

Optionally, the first indication information is used to indicate the first area information.

In a possible manner, the first area information includes one or more of location information, cell information, tracking area information, and notification area information of the access network device.

In a possible manner, the second area information includes one or more of location information, cell information, tracking area information, newly defined area information, and notification area information of the access network device.

In a possible manner, the first indication information is used to instruct the drone to broadcast the first message.

In one possible way, the drone determines to broadcast the first message based on the first instruction information including:

The drone determines to broadcast the first message in the first area according to the first instruction information, and the first area is a specific area.

In a possible manner, the first message further includes: one or more of location information and flight route information.

In one possible way, the first identifier is predefined, preconfigured or dynamically allocated.

In one possible way, broadcasting the first message includes: broadcasting the first message on the first interface, and the first interface is PC5 interface.

In one possible way, broadcasting the first message includes: encrypting the first message using a public key or a private key.

In a possible manner, the first indication information is carried in a system message.

In a possible manner, the second indication information is carried in the non-access stratum message.

In one possible way, the first identifier is the remote identifier remote ID.

In the second aspect, embodiments of the present application provide a UAV communication method, which can be executed by the first network device or by components of the first network device (such as a processor, a chip, or a chip system, etc.), The method may include: the first communication device determines first area information, wherein the drone in the first area needs to broadcast a first message, the first message includes a first identifier, and the first identifier is used to indicate the location of the drone. Identity information: the first communication device sends first indication information to the drone, and the first indication information is used to indicate the first area information or to instruct the drone to broadcast the first message.

Through this method, the first communication device sends the first instruction information to the drone, which is beneficial to improving the performance of managing the drone. For example, the first communication device considers instructing the UAV to broadcast the first message only in a specific area under supervision, which can not only meet the supervision requirements, but also reduce the energy consumption of the UAV.

Optionally, the first communication device determines the first area information including: the first communication device receives configuration information from the first core network device, and the configuration information is used to indicate the second area information.

Optionally, the first area information includes one or more of geographical location information, cell information, tracking area information, and notification area information of the access network device.

Optionally, the first message also includes: one or more of position information, altitude information and flight route information.

Optionally, the first identifier is predefined, preconfigured or dynamically allocated.

Optionally, the first message is carried in the system message.

Optionally, the first identifier is the remote ID remote ID.

Optionally, the method further includes: sending third instruction information to the UAV, where the third instruction information includes one or more of information for instructing forced landing, supervision system supervision information, and updated flight path information.

In the third aspect, embodiments of the present application provide a UAV communication method, which can be executed by the first core network device or by components of the first core network device (such as a processor, a chip, or a chip system, etc.) Execution, the method may include: the first core network device determines the second area information, wherein the drone in the second area needs to broadcast a first message, the first message includes a first identifier, and the first identifier is used to indicate the The identity information of the drone; the first core network device sends second indication information to the drone, and the second indication information is used to indicate the second area information.

Through this method, the drone can determine to broadcast the first message based on the instruction information from the core network device, and the drone can accurately determine whether to broadcast the first message, thereby reducing power consumption.

In a possible manner, the second area information includes one or more of location information, cell information, tracking area information, newly defined area information, and notification area information of the access network device.

In the fourth aspect, embodiments of the present application provide a communication device, which may be a drone or a chip for a drone. The device has the function of realizing the above-mentioned first aspect or each possible implementation method of the first aspect. This function can be implemented by hardware, or it can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

In a fifth aspect, embodiments of the present application provide a communication device, which may be a first communication device or a chip for the first communication device. The device has the function of realizing the above second aspect or each possible implementation method of the second aspect. This function can be implemented by hardware, or it can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

In the sixth aspect, embodiments of the present application provide a communication device, which may be a first core network device, or may be Chips used in the first core network equipment. The device has the function of realizing the above third aspect or each possible implementation method of the third aspect. This function can be implemented by hardware, or it can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

In a seventh aspect, embodiments of the present application provide a communication device, including a processor and a memory; the memory is used to store computer execution instructions, and when the device is running, the processor executes the computer execution instructions stored in the memory, so that The device performs the methods of the above-mentioned first to third aspects, and any method among the possible implementation methods of the first to third aspects.

In an eighth aspect, embodiments of the present application provide a communication device, including various steps for executing the methods of the first to third aspects and any of the possible implementation methods of the first to third aspects. Unit or means.

In a ninth aspect, embodiments of the present application further provide a computer-readable storage medium that stores instructions that, when run on a computer, cause the processor to execute the above-mentioned first to third aspects. method, any method among the possible implementation methods of the first aspect to the third aspect.

In a tenth aspect, embodiments of the present application further provide a computer program product. The computer product includes a computer program. When the computer program is run, the methods of the first aspect to the third aspect and each of the methods of the first aspect to the third aspect are implemented. Any of the possible implementation methods is executed.

In an eleventh aspect, embodiments of the present application further provide a chip system, including: a processor, configured to execute the methods of the first to third aspects, and any of the possible implementation methods of the first to third aspects. Any method.

In a twelfth aspect, embodiments of the present application further provide a communication system, including a drone and a first communication device, and optionally, a first core network device. Optionally, UTM nodes and/or drone controllers may also be included. It can be understood that the interaction between various network elements or devices in the communication system can refer to the method described in any one of the first to third aspects above.

Description of the drawings

Figure 1 is a schematic diagram of a network architecture applicable to the embodiment of the present application;

Figure 2 is a schematic diagram of a drone network coverage provided by an embodiment of the present application;

Figure 3 is a schematic diagram of a UAV communication method provided by an embodiment of the present application;

Figure 4 is a schematic diagram of a communication device according to an embodiment of the present application;

Figure 5 is a schematic diagram of a communication device according to yet another embodiment of the present application.

Detailed ways

The technical solution of the present application will be illustrated below with reference to the accompanying drawings.

The methods and devices provided by the embodiments of the present application can be used in various communication systems, such as fourth generation (4G) communication systems, 4.5G communication systems, 5G communication systems, 5.5G communication systems, 6G communication systems, and various communication systems. System integration systems, or future evolving communication systems. For example, long term evolution (LTE) system, new radio (NR) system, wireless-fidelity (WiFi) system, and 3rd generation partnership project (3GPP) related communication systems, etc., and other such communication systems.

As shown in FIG. 1 , it is a schematic architectural diagram of a communication system 100 applicable to the embodiment of the present application. The communication system 100 includes at least one UAV 110 and at least one access network device 120 . Optionally, the communication system also includes core network equipment 130 and/or unmanned aerial system traffic management (UTM) nodes. The UAV 110 is connected to the access network device 120 in a wireless manner, and the access network device 120 is connected to the core network device 130 or UTM node in a wireless or wired manner. The core network equipment 130 and the access network equipment 120 may be independent and different. The device can also integrate the functions of the core network device 130 and the logical functions of the access network device 120 on the same device, or it can also integrate the functions of some core network devices and some wireless access network devices on one device. function. UAVs and access network devices can be connected to each other through wired or wireless methods.

Figure 1 is only a schematic diagram. The communication system may also include other network devices, such as a UAV controller, where the UAV controller is used to control the UAV. For example, the operator can control the flight path and/or flight of the UAV through the UAV controller. Speed, etc., the UTM node can be associated with the UAV and the UAV controller to realize the control and management function of the UAV, and the access network equipment can provide mobile communication network services for the UAV and the UAV controller. Optionally, the access network device can also be associated with the UAV and the UAV controller to realize the control and management function of the UAV. Optionally, the UAV controller implements UAV control and management functions through WiFi or side links. For example, the UAV controller may include a UAV controller 140a and a UAV supervisory controller 140b (which may also be referred to as a supervisory controller for short), where the supervisory controller 140b has higher control authority than the UAV controller 140a. Figure 1 takes a UAV 110 as an example. It can be understood that the system may include one or more UAVs and corresponding UAV controllers. In the communication system 100, one UAV may correspond to one UAV controller, or multiple UAVs may correspond to one UAV controller. This is not limited in the embodiment of the present application.

The access network equipment in the embodiments of this application (sometimes also referred to as network equipment or wireless access network equipment in this application) may be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmitting and receiving point ( transmission reception point (TRP), the next generation base station (next generation NodeB, gNB) in the 5G mobile communication system, the next generation base station in the 6G mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc. ; It can also be a module or unit that completes some functions of the base station. For example, it can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU). The wireless access network equipment can be a macro base station, a micro base station or an indoor station, or a relay node or a donor node, etc. It can be understood that all or part of the functions of the radio access network equipment in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform). The embodiments of this application do not limit the specific technology and specific equipment form used by the wireless access network equipment. For the convenience of description, the following description takes the base station as a radio access network device as an example.

The drone in the embodiment of the present application may also be called a terminal device, and the terminal device may also be called a terminal, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), Internet of Things ( internet of things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technology and specific equipment form used by the terminal. For the convenience of description, the following description takes the terminal as a drone as an example.

In the embodiments of the present application, the functions of the base station may also be performed by modules (such as chips) in the base station, or may be performed by a control subsystem that includes the base station functions. The control subsystem here including the base station function can be the control center in the application scenarios of the above-mentioned terminals such as smart grid, industrial control, smart transportation, smart city, etc. The functions of the terminal can also be performed by modules in the terminal (such as chips or modems), or by a device containing the terminal functions.

In the embodiment of this application, UTM is a network element introduced on the network side to manage drone services. In a possible implementation, the network element can be a core network element (for example, a network element set in the core network). functional entity) or an independent control network element. UTM nodes can also be called UTM modules, UTM network elements, or UTM entities.

In addition, in order to facilitate understanding of the technical solution of this application, terms related to UAV management are introduced.

UAV logo. In one possible implementation, in order to better manage UAVs, identification requirements for UAVs are proposed, such as using a remote identity (remote ID) to identify UAVs. The remote ID is provided by the UAV in flight Information for other devices or control platforms to receive or determine the identity and/or location of the UAV. When a UAV appears to be flying in an unsafe manner or should not be allowed to fly, remote ID can be used to help identify the UAV or to help locate the control platform or control station controlling the UAV. remote ID provides the foundation for the security requirements required for more complex UAV operations. It is easy to understand that the remote ID can also be other information that can identify the UAV, such as other information used to identify the identity information of the UAV. This application uses the remote ID as an example for introduction.

Tracking area (TA). TA is a concept established by the communication system for terminal location management. It is defined as a free movement area where terminals do not need to update services. In order to realize the management of terminal location, the TA function can be divided into paging management and location update management. The terminal informs the core network of the terminal's tracking area through tracking area registration. Generally, TA is a cell-level configuration. Multiple cells can be configured with the same TA, and a cell can only belong to one TA. Tracking area identity (TAI) is an identifier that distinguishes each TA from other TAs. TAI can be composed of Public Land Mobile Network (PLMN) and tracking area code (TAC). That is, TAI=PLMN+TAC. Multiple TAs form a TA list (TA List) and are assigned to a terminal at the same time. When the terminal moves within the TA list, it does not need to perform tracking area update (TAU) to reduce frequent interactions with network equipment; when When a terminal enters a TA area that is not in its registered TA list, it needs to perform TAU. Generally, the core network reassigns a group of TAs to the terminal. The newly allocated TAs may also include some TAs in the original TA list; in addition to this In this case, the terminal will also perform TAU regularly to let the core network know the location of the terminal.

Radio access network based notification area (RNA) based on access network equipment. There are two main components of RNA. One type of RNA is composed of a cell list, and the other type of RNA is composed of a TAC identifier or a tracking area code identifier. The last serving base station before the terminal enters the INACTIVE state will configure RNA for the terminal, which means that when the terminal moves within the RNA range, there is no need to perform RNA update (RNA update, RNAU). If the terminal has RNA, it will initiate RNAU. In addition, TAU will be performed regularly to let the final serving base station know the location of the terminal.

System information (SI) is a message sent from the cell to the terminal. In the NR system, it is divided into minimum system information (MSI) and other system information (OSI). The minimum system information includes the main system information. Information block (master information block, MIB) and system message block 1 (system information block 1, SIB1) are sent periodically. Among them, SIB1 can also be called the remaining minimum system message (remaining minimum SI, RMSI). MSI generally includes system messages including cell selection and initial access information and other SI scheduling information. All system messages except MIB and SIB1 can be called It is OSI, and OSI is transmitted in SystemInformation messages (SIB2 and above). In order to save power for the base station, it is not sent periodically, but based on requests.

In some special circumstances and during special periods, control measures can be taken to restrict flights in specific areas. How the UAV knows which areas are specific areas, and what behaviors the UAV may have on the air interface after knowing the specific area, currently need to be studied. In order to facilitate the management of UAVs, UAVs can broadcast their remote IDs, but UAVs always broadcasting remote IDs will generate large energy consumption. In order to improve the performance of managing UAVs, embodiments of the present application provide a communication method 300 for UAVs, such as As shown in Figure 3, including:

Optional step S310: The first communication device sends the first instruction information to the drone.

Correspondingly, the drone receives the first instruction information from the first communication device.

It is easy to understand that the embodiment of the present application does not limit the timing or triggering conditions for the first communication device to send the first instruction information to the drone.

For example, when the first communication device determines that the drone is within the first area, the first communication device sends first instruction information to the drone to instruct the drone to start broadcasting the first identification. Exemplarily, it also includes the first communication device determining the first area, wherein the drone in the first area needs to broadcast a first message, the first message includes a first identifier, and the first identifier is Used to indicate the identity information of the drone.

The first identifier is used to indicate the identity information of the UAV to the device at the receiving end. Optionally, the first identifier may be a remote ID. Optionally, the first identification has multiple possible determination or allocation methods. For example, the UAV is provided with a remote ID by the UAS service provider (UAS service supplier, USS); or the UAV is registered with the UTM during the boot/flight process, and is assigned by the UTM, and the remote ID changes during each flight; for another example, storage In UAVs, assigned by the manufacturer, etc.

For another example, after the first communication device receives messages from other network elements or platforms, the first communication device sends the first instruction information to the drone. Exemplarily, the UAV management platform or the core network device sends instruction information to the first communication device. The instruction information is used to indicate that the UAV needs to broadcast the first identifier, or the instruction information is used to instruct the UAV to broadcast the first identifier. Information about the first identified area (which may also be called a specific area). One possible way is to configure information in a specific area to the first communication device through operation, administration and maintenance (OAM) or AMF or UTM. That is, the first communication device receives configuration information from the first core network device, and the configuration information is used to indicate the second area, and the second area is a specific area (that is, the drone in the specific area needs to broadcast the first identification), or The second area is a normal area (that is, drones in this area do not need to broadcast the first identification). For example, when the first communication device determines that the drone is in a specific area, it sends the first indication information to the drone.

In a possible manner, the first indication information is used to instruct the drone to broadcast the first message. For example, the first indication information may be bit information. For example, the first indication information is 1 bit. When the first indication information is "1", the first indication information is used to instruct the drone to broadcast the first message. , when the first indication information is "0", the first indication information is used to indicate that the drone does not need to broadcast the first message. Of course, the first indication information may also be implemented in other ways for instructing the drone to broadcast the first message. For example, the first indication information includes information indicating that the drone is in a controlled area, or the first indication information includes information indicating that the drone needs to indicate identity information. The embodiments of this application are not limiting.

In another possible manner, the first indication information is used to indicate the first area (which may also be called first area information). It is easy to understand that the first indication information used to indicate the first area can be understood as the first indication information used to indicate that the UAV in the first area needs to broadcast the identity information of the UAV. Alternatively, the first indication information is used to indicate that the first area is a specific area, where the specific area means that the UAV needs to broadcast identity information in this area. Optionally, specific areas can be predefined or preconfigured.

Optionally, the first area information includes one or more of location information, cell information, tracking area information, and notification area information of the access network device. That is, the first indication information may be used to indicate the range of the first area. It is easy to understand that the first area information may also be newly introduced or newly defined area information. For example, newly define limited areas and adopt new area division methods.

Among them, location information can also be called regional information, which can be expressed by including longitude, latitude and altitude. Or the location information can also be geographical location information, such as XX Street, Pudong New District, Shanghai.

Cell information can be represented by cell identification. For example, the first indication information indicates a list of cells constituting the first area.

The height information may be the height relative to the ground, or the height relative to sea level (altitude), or the height relative to a certain reference point (relative height).

The time information may be absolute time information or relative time information. For example, the time information is used to indicate the time period during which the first message needs to be broadcast when the UAV is within the first area.

The tracking area information or the notification area information of the access network device may correspond to the first area. For example, it may indicate the TA or RNA corresponding to the first region, and the UAV in these TAs or RNA needs to broadcast the first message.

It can be understood that the first area can also be indicated by other information in the first indication information. For example, the first area can be represented by using reference coordinates, as long as the first area can be indicated. In this embodiment of the present application, No restrictions.

For example, the system information carries the first indication information and is used to indicate the first area. The first area may be represented by cell information or zone information (zone) or TA or RNA. Wherein, the first communication device (for example, gNB) may add an indication of whether the cell is a specific area in the system information. For example, gNB can add indication information indicating whether the cell is a specific area in the system information MIB. If the indication information is true or 1, it indicates that the cell the drone accesses is a specific area. Otherwise, if the indication information is false or 0 Or if the MIB does not include this indication information, it means that the cell is not a specific area. The regional information zone can be represented by specific geographical information such as longitude and latitude, and optionally can also include altitude information of the corresponding location. TA/RNA can correspond to specific regions. If it can be indicated in the system information which TA/RNA corresponds to a specific area, the cells in these TA/RNA require the UAV to broadcast the Remote ID on the PC5 port.

S320: The drone determines to broadcast the first message according to the first instruction information. The first message includes a first identifier, and the first identifier is used to indicate the identity information of the drone.

In a possible way for the drone to determine to broadcast the first message based on the first instruction information, the drone determines to broadcast the first message based on the first instruction information. For example, the first indication information is 1 bit, and when the first indication information is "1", the first indication information is used to instruct the drone to broadcast the first message.

In another possible way for the UAV to determine to broadcast the first message based on the first instruction information, the UAV determines to broadcast the first message based on the first instruction information and information from other network elements or platforms, and/or from within the UAV. The message is determined to broadcast the first message. That is to say, the drone may determine to broadcast the first message based on one or more of the first instruction information, information inside the drone, and information from other network elements or platforms.

Among them, the information inside the drone can include the location information of the drone, the flight route information of the drone, flight permission information, etc. For example, the drone determines that the drone needs to broadcast the third time based on the information inside the drone. A message or no need to broadcast the first message. For example, the drone determines that its position is within the first area indicated by the first indication information, and the first area is a restricted area, and the drone determines that it needs to broadcast the first message.

For example, the information from other network elements or platforms may include information indicating the second area information. The second area information may be an area that needs to broadcast the first message (for example, a white list is used to indicate the area) or an area that does not need to broadcast the first message (for example, a black list is used to indicate the area). For example, the second area information may be a white list or a black list. For example, drones in the area corresponding to the white list do not need to broadcast the first message, and drones in the area corresponding to the black list need to broadcast the third message. A message. Other network elements or platforms can be core network equipment or drone control platforms or drone controllers, or other network elements or platforms that can interact with drones, or other drones.

It is easy to understand that there are many possible ways for drones to obtain information from other network elements or platforms. The embodiment of this application uses other network elements or platforms as core network equipment as an example to introduce.

In a possible manner, the method 300 further includes S330: the drone receives second indication information from the first core network device, and the second indication information is used to indicate the second area information.

Optionally, the drone in step S320 determines to broadcast the first message based on the first indication information, including: the drone determines to broadcast the first message based on the first indication information and the second indication information.

In a possible manner, the second area information includes one or more of location information, cell information, tracking area information, and notification area information of the access network device. For relevant introduction to the location information, cell information, tracking area information and notification area information of the access network device, please refer to the relevant introduction to the first area information and will not be described again. It is easy to understand that the second area information may also be newly introduced or newly defined area information. For example, newly define limited areas and adopt new area division methods. For example, the second area information may be a newly defined area information, and the core network/third-party platform needs to define the corresponding relationship between the second area information and the first communication device (such as a base station) in advance through OAM. Configured to the first communication device.

Exemplarily, the drone determines to broadcast the first message based on the first indication information and the second indication information including:

The first indication information indicates the first area. For example, the first indication information indicates the cell currently accessed by the drone. The second indication information indicates the second area. For example, the second indication information indicates a blacklist. The cell is in the blacklist or it is determined that the currently accessed cell needs to broadcast identification information and determines to broadcast the first message. The embodiments of this application are not limited to the fact that the drone determines the method of broadcasting the first message based on one or more of the first indication information, the second indication information and the information inside the drone. That is to say, it can be handed over to Implemented inside the UAV, when the UAV determines that the UAV needs to broadcast the first message based on one or more of the first instruction information, the second instruction information and the information inside the UAV, the UAV determines Broadcast the first news. Among them, the first message that the drone needs to broadcast may include that the drone determines that it is currently in a controlled area.

As an example, this application provides several possible implementation methods after the drone receives the first instruction information,

When the drone performs cell selection/reselection/switching to the serving cell and reads the system information of the serving cell,

If the first indication information indicates that the serving cell is a specific area, the UAV broadcasts the first message, for example, enables broadcasting of the first identifier on the PC5 port.

Or if the first indication information indicates a Zone in a specific area, the UAV first determines its position and determines whether its current position is within the Zone. If so, the UAV broadcasts the first message.

Or if the first indication information indicates that the serving cell is the cell indicated in the specific area TA/RNA, the UAV is broadcasting the first message.

For another example, the first indication information indicates the first area (for example, the serving cell of the drone), and the second indication information from the core network device indicates the second area where the first message needs to be broadcast (for example, the area where the first message needs to be broadcast). cell list), the drone is in the second area according to the first area (for example, the serving cell of the drone is included in the cell list that needs to broadcast the first message), and the drone determines to broadcast the first message. It is easy to understand that just taking the cell information as an example, the cell information can also be replaced with other area information. For example, the cell information is replaced with location information. The drone determines the broadcast number based on the current location included in the location area where the first message needs to be broadcast. A message. That is to say, the UAV receives the second area information from the core network and the first area information from the first network device. If the first area belongs to or does not belong to the second area information received from the core network, the UAV Start broadcasting the first message.

It is easy to understand that the above possible implementation methods after the UAV receives the first instruction information and/or the second instruction information are only examples, and there are other possible implementation methods based on the first instruction information, the second instruction information and no limit. One or more of the information inside the human-machine determines how the drone needs to broadcast the first message.

In one possible way, the drone determines to broadcast the first message based on the first instruction information including:

The drone determines to broadcast the first message in the first area according to the first instruction information, and the first area is a specific area. It is easy to understand that the specific area in the embodiment of the present application can be understood as a controlled area, a special area or a restricted area, etc.

In a possible manner, the first message further includes: one or more of location information and flight route information. In other words, the UAV can broadcast the Remote ID on the PC5 port, and can also broadcast its current position and altitude information, current flight speed, flight route and other information for supervision.

In one possible way, the first identifier is predefined, preconfigured or dynamically allocated. Optionally, the first identifier is the remote ID remote ID. Of course, the first identifier can also be other information that can identify the drone, which is not limited by the embodiments of this application.

In one possible way, the drone broadcasting the first message includes: broadcasting the first message on the first interface, and the first interface is the PC5 interface. Alternatively, the drone broadcasts the first message through WiFi, which is not limited by the embodiments of this application. For example, the PC5 port broadcasts a dedicated destination ID (DST ID) for the ground surveillance system, and carries information such as Remote ID through upper layer signaling such as PC5-S messages; optionally, a new upper layer can also be introduced for the UAV. The protocol layer is used to carry UAV broadcast information content; it can also carry Remote ID and other information in the form of application data, broadcast through PC5 port. Optionally, broadcasting the first message by the drone includes: encrypting the first message using a public key or a private key. a possible way In the formula, the first indication information is carried in the non-access layer message.

Optionally, the UAV can also make judgments based on the monitored cell system information and is not limited to the serving cell, as shown in Figure 2 below. The current UAV is within the service range of cell1 and cell2. The cell serving the UAV is cell1. Cell1 is not in a specific area, but cell2 is in a specific area. When the drone reads the system information of cell2 indicating that cell2 is in a specific area, although cell2 does not provide services to the UAV at this time, for safety reasons, the UAV can start broadcasting on PC5 at this time. In addition, considering the UAV power consumption problem, a threshold value can be pre-configured on the UAV side. The threshold value can be the reference signal received power (RSRP) and the reference signal received quality (RSRQ). ), when the received system information is greater than the threshold value, the broadcast on the PC5 port is turned on.

Optionally, method 300 also includes: managing the drone according to the first identification.

For example, the first communication device manages the drone according to the first identification. Alternatively, when the ground supervision system receives the PC5 broadcast of the UAV, it can communicate with systems such as UTM, and then find the controller of the UAV or issue instructions to the UAV through systems such as UTM. Possible subsequent actions for instructing the UAV include: forcing the UAV Landing, supervision system takes over the UAV, issues a new flight path to the UAV and instructs the UAV for subsequent flight, etc.

That is to say, the UAV can be managed by one or more of the first communication device, the first core network device, the ground supervision system or the UAV controller. This application uses the first communication device as an example for management. .

Exemplarily, the first communication device sends third instruction information to the drone, where the third instruction information includes one or more of information indicating forced landing, supervision system supervision information, and updated flight path information. Correspondingly, the drone receives the third instruction information from the first communication device.

Through this method, the drone determines to broadcast Remote ID and other information based on one or more of the first instruction information, the information inside the drone, and the information from other network elements or platforms, thereby avoiding consumption while satisfying supervision. Too many resources.

In the above method embodiments, the size of the sequence numbers of the above processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. . And it is possible that not all operations in the above method embodiments need to be performed.

It should be understood that in the above method embodiments, the drone, the first communication device, and the first core network device can perform some or all of the steps in the embodiments. These steps or operations are only examples. The embodiments of the present application may also include performing other steps. Operations or variations of various operations. In addition, the first, second and various numerical numbers in the various embodiments of the present application are only for convenience of description and are not used to limit the scope of the embodiments of the present application.

An embodiment of the present application also provides a communication device for corresponding to the method of implementing the above embodiment. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, for content that is not described in detail, please refer to the above method embodiments. For the sake of brevity, some content will not be described again.

As shown in FIG. 4 , the communication device 400 may include: at least one transceiver unit 410 and at least one processing unit 420 . Optionally, the communication device may also include at least one storage unit 430, where the storage unit 430 may be coupled with the transceiver unit 410 and/or the processing unit 420. For example, the storage unit 430 may be used to store other information such as computer execution instructions and/or data. The processing unit 420 can read the instructions or data stored in the storage unit 430 to implement the corresponding solution.

It should be noted that the transceiver unit 410 in the embodiment of the present application may also be called a communication unit (module) or a communication interface, and the processing unit 420 may be called a processing module or processor. The storage unit 430 may also be called a storage module or memory.

The communication device 400 can respectively implement operations or steps corresponding to the drone, the first network device, the first core network device, the drone controller, and the UTM node in the method embodiment of FIG. 3 .

In a possible implementation, when the communication device 400 implements the operations or steps corresponding to the drone in the method embodiment shown in Figure 4, the transceiver unit 410 is used to receive the first instruction information from the first communication device; process Unit 420 is configured to determine to broadcast a first message according to the first indication information, where the first message includes a first identifier, and the first identifier is used to indicate the identity information of the communication device. Optionally, the transceiver unit 410 may receive second indication information from the first core network device, where the second indication information is used to indicate the second area information. Optionally, the processing unit 420 is configured to determine to broadcast the first message according to the first indication information and/or the second indication information. Optionally, the processing unit 420 is configured to determine to broadcast the first message in the first area according to the first indication information, and the first area is a specific area.

In a possible implementation, when the communication device 400 implements the operations or steps corresponding to the first network device in the method embodiment shown in Figure 3, the processing unit 420 is used to determine the first area information, where in the first area The UAV in needs to broadcast a first message, the first message includes a first identifier, and the first identifier is used to indicate the identity information of the UAV; the transceiver unit 410 is used to send the first instruction information to the UAV, the first instruction The information is used to indicate the first area information or to instruct the drone to broadcast the first message. Optionally, the transceiver unit 410 is configured to receive configuration information from the first core network device, where the configuration information indicates the second area. The processing unit 420 is configured to determine the first area according to the second area. Optionally, the transceiver unit 410 is configured to send third indication information to the drone, where the third indication information includes one or more of information for instructing forced landing, supervision system supervision information, and updated flight path information.

In a possible manner, when the communication device 400 implements the operations or steps corresponding to the first core network device in the method embodiment shown in FIG. 4, the processing unit 420 is used to determine the second area information, wherein in the second area The UAV in needs to broadcast a first message, the first message includes a first identifier, and the first identifier is used to indicate the identity information of the UAV; the transceiver unit 410 is used to send the second instruction information to the UAV. The second indication information is used to indicate the second area information.

It can be understood that each of the above units can be set up individually or integrated, which is not limited in the embodiments of the present application.

"Module" or "unit" in various embodiments of this application may refer to an application specific integrated circuit (ASIC), a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the above. functional device.

Figure 5 shows a communication device 500 provided by yet another embodiment of the present application. The communication device 500 can respectively implement any function corresponding to the drone or drone controller or UTM node or access network device in each of the above method embodiments. The communication device 500 includes: at least one processor 501 (illustrated as including one processor in FIG. 5 ) and at least one memory 502 (illustrated as including one memory in FIG. 5 ). Instructions (or programs or codes) and/or data can be stored in the memory, and the processor 501 is coupled to the memory 502. For example, the processor 501 can call the instructions and/or data in the memory 502, so that the communication device implements the above-mentioned tasks respectively. Any operation or step corresponding to the drone or drone controller, UTM node or access network device in each method embodiment.

The processor and transceiver described in various embodiments of the present application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printing On printed circuit boards (PCB), electronic equipment, etc. The processor and transceiver can also be manufactured using various 1C process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc. Optionally, the processor may include one or more processors, such as one or more CPUs. When the processor is a CPU, the CPU may be a single-core CPU or a multi-core CPU. Transceivers are used to send and receive data and/or signals, as well as to receive data and/or signals. The transceiver may include a transmitter and a receiver, the transmitter transmitting The transceiver is used to send data and/or signals, and the receiver is used to receive data and/or signals. The transceiver can also be a communication interface. Memories include, but are not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), read-only optical disks ( compact disc read-only memory (CD-ROM), which is used to store related instructions and/or data.

In a possible design, the chip mentioned in the embodiment of the present application can realize the relevant functions that can be realized by the processor, or can realize the relevant functions that can be realized by the processor and the transceiver, or can realize the processor and the transceiver. and the related functions that memory can implement. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chip that implements related functions.

Embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed, the communication method in any of the above method embodiments is implemented.

Embodiments of the present application also provide a computer program product, which, when executed, implements the communication method in any of the above method embodiments.

This application also provides a communication system, which may include a drone, and may also include one or more of a drone controller, a first network device, and a first core network device.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g., the computer instructions may From one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) data center for transmission. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Drive (SSD)), etc.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (50)

1. A communication method, characterized by including:

   receiving first indication information from the first communication device;

   The first message is determined to be broadcast according to the first indication information. The first message includes a first identifier, and the first identifier is used to indicate the identity information of the drone.
2. The method according to claim 1, further comprising: receiving second indication information from the first core network device, the second indication information being used to indicate second area information;

   Determining to broadcast the first message according to the first indication information includes:

   Determining to broadcast the first message according to the first indication information and/or the second indication information.
3. The method according to claim 2, wherein the first indication information is used to indicate first area information.
4. The method according to claim 3, characterized in that the first area information includes one or more of location information, cell information, tracking area information and notification area information of the access network device.
5. The method according to any one of claims 2 to 4, characterized in that the second area information includes one or more of location information, cell information, tracking area information and notification area information of the access network device. .
6. The method according to claim 1, characterized in that the first indication information is used to instruct the drone to broadcast the first message.
7. The method according to any one of claims 1 to 6, wherein determining to broadcast the first message according to the first indication information includes:

   It is determined according to the first indication information to broadcast the first message in a first area, and the first area is a specific area.
8. The method according to any one of claims 1 to 7, characterized in that the first message further includes: one or more of location information and flight route information.
9. The method according to any one of claims 1 to 8, characterized in that the first identification is predefined, preconfigured or dynamically allocated.
10. The method according to any one of claims 1 to 9, characterized in that broadcasting the first message includes:

    The first message is broadcast on the first interface, and the first interface is the PC5 interface.
11. The method according to any one of claims 1 to 10, characterized in that broadcasting the first message includes:

    The first message is encrypted using a public key or a private key.
12. The method according to any one of claims 1 to 11, characterized in that the first indication information is carried in a system message.
13. The method according to any one of claims 1 to 12, characterized in that the first identification is a remote identification remote ID.
14. The method according to claims 1 to 13, characterized in that the method further includes:

    Third indication information is received from the first communication device or the second communication device, where the third indication information includes one or more of information indicating forced landing, supervision system supervision information and updated flight path information.
15. A communication method, characterized by including:

    Determine first area information, wherein the drone in the first area needs to broadcast a first message, the first message includes a first identifier, and the first identifier is used to indicate the identity of the drone information;

    Send first indication information to the drone, where the first indication information is used to indicate the first area information or to instruct the drone to broadcast the first message.
16. The method of claim 15, wherein determining the first area information includes:

    Receive configuration information from the first core network device, where the configuration information indicates the second area.
17. The method according to claim 15 or 16, characterized in that the first area information includes one or more of geographical location information, cell information, tracking area information and notification area information of the access network device.
18. The method according to any one of claims 15 to 17, characterized in that the first message further includes: one or more of position information, altitude information and flight route information.
19. The method according to any one of claims 15 to 18, characterized in that the first identification is predefined, preconfigured or dynamically allocated.
20. The method according to any one of claims 15 to 19, characterized in that the first message is carried in a system message.
21. The method according to any one of claims 15 to 20, characterized in that the first identification is a remote identification remote ID.
22. The method according to any one of claims 15 to 21, characterized in that the method further includes:

    Send third instruction information to the UAV, where the third instruction information includes one or more of information for instructing forced landing, supervision system supervision information, and updated flight path information.
23. A communication device, characterized in that it includes: a processor, the processor is coupled to a memory, the memory is used to store programs or instructions, and when the programs or instructions are executed by the processor, the device causes the device to A method as claimed in any one of claims 1 to 14 is performed.
24. A communication device, characterized in that it includes: a processor, the processor is coupled to a memory, the memory is used to store programs or instructions, and when the programs or instructions are executed by the processor, the device causes the device to A method as claimed in any one of claims 15 to 22 is performed.
25. A computer-readable storage medium with computer programs or instructions stored thereon, characterized in that, when executed, the computer program or instructions cause the computer to perform the method described in any one of claims 1 to 14 or 15 to 22 method.
26. A communication device, characterized in that it includes: a transceiver unit and a processing unit; wherein:

    The transceiver unit is configured to receive first indication information from the first communication device;

    The processing unit is configured to determine to broadcast a first message according to the first indication information, where the first message includes a first identifier, and the first identifier is used to indicate the identity information of the drone.
27. The device according to claim 26, the transceiver unit is further configured to receive second indication information from the first core network device, the second indication information is used to indicate second area information;

    The processing unit is further configured to determine to broadcast the first message according to the first indication information, including:

    The processing unit is further configured to determine to broadcast the first message according to the first indication information and/or the second indication information.
28. The device according to claim 27, the first indication information is used to indicate first area information.
29. The apparatus according to claim 28, wherein the first area information includes one or more of location information, cell information, tracking area information, and notification area information of access network equipment.
30. The apparatus according to any one of claims 27 to 29, wherein the second area information includes one or more of location information, cell information, tracking area information, and notification area information of the access network equipment. .
31. The device according to claim 26, wherein the first indication information is used to instruct the drone to broadcast the first message.
32. The device according to any one of claims 26 to 31, characterized in that the processing unit is further configured to determine to broadcast the first message in the first area according to the first indication information, and the first Area is a specific area.
33. The device according to any one of claims 26 to 32, wherein the first message further includes: location One or more of information and flight route information.
34. The device according to any one of claims 26 to 33, characterized in that the first identification is predefined, preconfigured or dynamically assigned.
35. The device according to any one of claims 26 to 34, wherein the transceiver unit is further configured to broadcast the first message on a first interface, and the first interface is a PC5 interface.
36. The device according to any one of claims 26 to 35, wherein the processing unit is further configured to encrypt the first message using a public key or a private key.
37. The device according to any one of claims 26 to 36, characterized in that the first indication information is carried in a system message.
38. The device according to any one of claims 26 to 37, characterized in that the first identification is a remote identification remote ID.
39. The apparatus according to claims 26 to 38, characterized in that the transceiver unit is further configured to receive third indication information from the first communication device or the second communication device, the third indication information includes an indication One or more of forced landing information, regulatory system regulatory information and updated flight path information.
40. A communication device, characterized in that it includes: a processing unit and a transceiver unit; wherein:

    The processing unit is used to determine first area information, wherein the UAV in the first area needs to broadcast a first message, the first message includes a first identifier, and the first identifier is used to indicate The identity information of the drone;

    The transceiver unit is configured to send first indication information to the drone, where the first indication information is used to indicate the first area information or to instruct the drone to broadcast the first message.
41. The apparatus according to claim 40, wherein the transceiver unit is further configured to receive configuration information from the first core network device, where the configuration information indicates the second area.
42. The apparatus according to claim 40 or 41, wherein the first area information includes one or more of geographical location information, cell information, tracking area information, and notification area information of access network equipment.
43. The device according to any one of claims 40 to 42, wherein the first message further includes: one or more of position information, altitude information and flight route information.
44. The device according to any one of claims 40 to 43, characterized in that the first identification is predefined, preconfigured or dynamically allocated.
45. The device according to any one of claims 40 to 44, characterized in that the first message is carried in a system message.
46. The device according to any one of claims 40 to 45, characterized in that the first identification is a remote identification remote ID.
47. The device according to any one of claims 40 to 46, characterized in that the transceiver unit is further configured to send third instruction information to the drone, and the third instruction information includes instructions for forced landing. information, regulatory system regulatory information, and updated flight path information.
48. A communication system, characterized by comprising the communication device according to any one of claims 26-39 and the communication device according to any one of claims 40-47.
49. A computer program product, characterized in that the computer product includes a computer program. When the computer program is run, the method according to any one of claims 1 to 14 is performed, or the method according to claim 15 is performed. - The method described in any one of -22 is executed.
50. A chip system, characterized in that the chip system includes a processor for executing the method as claimed in any one of claims 1-14, or for executing the method as claimed in any one of claims 15-22. method described.