WO2025237161A1 - 通信方法、设备、存储介质及产品 - Google Patents

通信方法、设备、存储介质及产品

Info

Publication number
WO2025237161A1
WO2025237161A1 PCT/CN2025/093576 CN2025093576W WO2025237161A1 WO 2025237161 A1 WO2025237161 A1 WO 2025237161A1 CN 2025093576 W CN2025093576 W CN 2025093576W WO 2025237161 A1 WO2025237161 A1 WO 2025237161A1
Authority
WO
WIPO (PCT)
Prior art keywords
action
disaster
terminal device
location information
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/093576
Other languages
English (en)
French (fr)
Inventor
蔡慧
沈丽
封鹏飞
徐波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honor Device Co Ltd
Original Assignee
Honor Device Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honor Device Co Ltd filed Critical Honor Device Co Ltd
Publication of WO2025237161A1 publication Critical patent/WO2025237161A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method, device, storage medium and product.
  • Satellite communication systems can provide communication services in disaster scenarios to support rescue efforts.
  • An example of a satellite communication system application in a disaster scenario is as follows: A satellite base station receives an early warning request, which includes warning information. Subsequently, the satellite base station distributes the warning information to UEs within multiple cells it covers.
  • This application provides a communication method, device, storage medium, and product, applicable to the field of satellite communication technology.
  • embodiments of this application propose a communication method.
  • This method can be executed by a terminal device, or by a component (e.g., a chip or circuit) configured in the terminal device.
  • a component e.g., a chip or circuit
  • the method includes: receiving first indication information sent by a network device, the first indication information being used to instruct a terminal device to take a first action when a disaster occurs in the area covered by the network device; and executing the first action by implementing a flow control policy on the traffic of the terminal device.
  • the first indication information may indicate whether the terminal device is located in a disaster area or not. If the terminal device is located in a disaster area, the first action is a first execution action. If the terminal device is not located in a disaster area, the first action is a second execution action.
  • Network devices can send first instruction information to terminal devices. This first instruction information is used to determine the first action to be performed by the terminal device. After the first action is performed, flow control strategies can be implemented on the traffic of the terminal device, thereby reducing the communication resources occupied by the terminal device and freeing up more communication resources for disaster relief communication. This reduces the crowding of communication resources during disasters, ensures timely early warning, and effectively protects the lives and property of users.
  • the first instruction information can be carried in the first system information block (SIB). That is, the terminal device can obtain it from the first system information block (SIB).
  • communication resources may refer to PDU sessions.
  • the communication resources consumed by terminal devices can be reduced by methods such as rate limiting or deactivation of PDU sessions.
  • the first indication information includes: disaster location information and/or non-disaster location information.
  • the disaster location information can be associated with a first action
  • the non-disaster location information can be associated with a second action.
  • the first action is either the first action or the second action.
  • disaster location information can be used to indicate disaster areas.
  • Non-disaster location information can be used to indicate non-disaster areas.
  • the terminal device is also used to: determine the early warning detection result of the terminal device according to the first instruction information, the early warning detection result including whether the terminal device is located in a disaster area or not, the disaster area refers to the area in the network device coverage area where a disaster has occurred; and determine the first action of the terminal device according to the early warning detection result.
  • the first action refers to the first execution action; when the terminal device is not located in a disaster area, the first action refers to the second execution action.
  • disaster location information may include at least one of the following: a first tracking area code, a first tracking area list, a first tracking area identifier, and a first area configuration.
  • Non-disaster location information may include at least one of the following: a second tracking area code, a second tracking area list, a second tracking area identifier, and a second area configuration.
  • tracking area codes, tracking area lists, tracking area identifiers, and/or area configurations to define location information makes the representation of disaster location information and/or non-disaster location information more flexible, adaptable to more application scenarios, enriches the information content of the first indication information, and can effectively improve the stability and reliability of the system's expression.
  • the first action can be either a first execution action or a second execution action.
  • the first execution action can be at least one of the following: executing a warning notification; maintaining the first protocol data unit (PDU) session associated with the disaster warning in an active state; maintaining the first PDU session traffic unchanged; executing a rate limiting policy for the terminal device; and deactivating a second PDU session unrelated to the disaster warning.
  • PDU protocol data unit
  • the execution of the first execution action by the terminal device may specifically include at least one of the following:
  • the terminal device will issue an early warning notification.
  • the terminal device maintains the first protocol data unit (PDU) session in an active state.
  • PDU protocol data unit
  • the terminal device maintains the same traffic for the first PDU session.
  • the terminal device implements a rate limiting policy.
  • the second PDU session of the terminal device is deactivated.
  • the second action can be at least one of the following:
  • the terminal device performing the second execution action may specifically include at least one of the following:
  • the terminal device does not execute the warning prompt.
  • the terminal device deactivates the third PDU session.
  • the terminal device implements a rate limiting policy.
  • the first instruction information may carry action information, which can be used to determine the first and second actions.
  • the first instruction information may carry first action information and second action information.
  • the first action information is used to determine the first action to be performed, and the second action information is used to determine the second action to be performed.
  • the communication method of this application also includes: determining a first execution action based on first action information; and determining a second execution action based on second action information.
  • the third PDU session can refer to a non-essential session within the PDU session with the terminal device.
  • it could refer to a session that consumes significant communication resources.
  • at least one of the following is also included:
  • the bandwidth requirement of the third PDU session is greater than or equal to the bandwidth threshold.
  • the network interaction frequency of the third PDU session is greater than or equal to the frequency threshold.
  • the first or second execution action may include executing a rate limiting policy.
  • the communication method provided in this application may also include:
  • Receive rate limiting policies sent by network devices wherein the rate limiting policies are issued to network devices by User Plane Function (UDF) or Access Mobility Management (AMF), and the rate limiting policies of AMF or UDF are provided by SMF.
  • UDF User Plane Function
  • AMF Access Mobility Management
  • rate limiting policies can refer to methods of restricting traffic to PDU sessions unrelated to disaster warning.
  • rate limiting policies may include the maximum bit rate of data transmission for PDU sessions unrelated to disaster warning.
  • One possible implementation also includes:
  • the terminal device receives a second instruction message sent by the network device.
  • the second instruction message is used to instruct the terminal device to perform a second action when the disaster in the area covered by the network device is resolved.
  • the second action is used to restore the terminal device's normal use of communication resources.
  • the second indication information includes disaster location information and/or non-disaster location information, and the disaster location information and/or non-disaster location information are associated with a third execution action, wherein the second action is the third execution action.
  • the third execution action is at least one of the following:
  • the second indication information is carried in a second SIB.
  • the terminal device is also used to: read the second indication information from the second SIB.
  • the network device is a satellite network device.
  • embodiments of this application provide a communication method.
  • This method can be executed by a network device, or by a component (e.g., a chip or circuit) configured within the network device.
  • a component e.g., a chip or circuit
  • the method includes: sending a first instruction message to a terminal device, the first instruction message being used to instruct the terminal device to perform a first action when a disaster occurs in the area covered by the network device, and the first action being performed by the terminal device to implement a flow control strategy on the terminal device's traffic.
  • One possible implementation also includes:
  • One possible implementation also includes:
  • the second instruction message is used to instruct the terminal device to perform a second action when the disaster in the area covered by the network device is resolved.
  • the second action is used to restore the terminal device's normal use of communication resources.
  • a communication apparatus comprising modules or units for performing the methods of the first aspect and any possible implementation thereof.
  • a communication apparatus comprising modules or units for performing the methods of the second aspect and any possible implementation thereof.
  • a communication device including a processor.
  • the processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods described in the first aspect and any possible implementation thereof.
  • the device further includes a memory.
  • the device further includes a communication interface, to which the processor is coupled.
  • the communication device is a terminal device.
  • the communication interface can be a transceiver or an input/output interface.
  • the communication device is a chip configured in the terminal device.
  • the communication interface can be an input/output interface.
  • the transceiver can be a transceiver circuit.
  • the input/output interface can be an input/output circuit.
  • a sixth aspect provides a communication device including a processor.
  • the processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods of the second aspect and any possible implementation thereof.
  • the device further includes a memory.
  • the device further includes a communication interface, to which the processor is coupled.
  • the communication device is a network device.
  • the communication interface can be a transceiver, or an input/output interface.
  • the communication device is a chip configured in a network device.
  • the communication interface can be an input/output interface.
  • the transceiver can be a transceiver circuit.
  • the input/output interface can be an input/output circuit.
  • a processor comprising: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute the methods of the first aspect or the second aspect, and any possible implementation thereof.
  • the processor can be one or more chips
  • the input circuit can be input pins
  • the output circuit can be output pins
  • the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits.
  • the input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit can be, for example, but not limited to, output to and transmitted by a transmitter.
  • the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.
  • a processing apparatus including a processor and a memory.
  • the processor is configured to read instructions stored in the memory and to receive signals via a receiver and transmit signals via a transmitter to execute the methods of the first aspect or the second aspect and any possible implementation thereof.
  • processors there may be one or more processors and one or more memories.
  • the memory can be integrated with the processor, or the memory can be set up separately from the processor.
  • the memory can be a non-transitory memory, such as read-only memory (ROM), which can be integrated with the processor on the same chip or set on different chips.
  • ROM read-only memory
  • the embodiments of this application do not limit the type of memory or the way the memory and processor are set.
  • the relevant data interaction process can be the process of the processor outputting indication information
  • receiving capability information can be the process of the processor receiving input capability information.
  • the data output by the processor can be sent to the transmitter, and the input data received by the processor can come from the receiver.
  • the transmitter and receiver can be collectively referred to as a transceiver.
  • the processing device mentioned in the eighth aspect above can be one or more chips.
  • the processor in the processing device can be implemented in hardware or software.
  • the processor can be a logic circuit, integrated circuit, etc.; when implemented in software, the processor can be a general-purpose processor that reads software code stored in memory.
  • the memory can be integrated into the processor or located outside the processor and exist independently.
  • embodiments of this application provide a terminal device, including a processor, a memory, and a transceiver.
  • the transceiver is used to send and receive data
  • the memory is used to store code instructions
  • the processor is used to execute the code instructions.
  • the processor executes the code instructions stored in the memory, it instructs the terminal device to execute the methods described in the first aspect and any possible implementation of the first aspect.
  • embodiments of this application provide a network device, including a processor, a memory, and a transceiver.
  • the transceiver is used to send and receive data
  • the memory is used to store code instructions
  • the processor is used to execute the code instructions.
  • the processor executes the code instructions stored in the memory, it instructs a terminal device to perform the method described in the second aspect and any possible implementation of the second aspect.
  • embodiments of this application provide a computer-readable storage medium storing a computer program or instructions that, when executed on a computer, cause the computer to perform the methods described in the first or second aspect and any possible implementation thereof.
  • this application provides a chip or chip system including at least one processor and a communication interface.
  • the communication interface and the at least one processor are interconnected via a circuit.
  • the at least one processor is used to run computer programs or instructions to perform the methods of the first aspect or the second aspect and any possible implementation thereof.
  • the communication interface in the chip can be an input/output interface, pins, or circuits, etc.
  • embodiments of this application provide a computer program product including a computer program, which, when run on a computer, causes the computer to perform the methods of the first aspect or the second aspect and any possible implementation thereof.
  • the chip or chip system described above in this application further includes at least one memory storing instructions.
  • the memory can be an internal storage unit of the chip, such as a register or cache, or it can be a storage unit of the chip itself (e.g., read-only memory, random access memory, etc.).
  • the third, fifth, and ninth aspects of this application correspond to the technical solutions of the first aspect of this application
  • the fourth, sixth, and tenth aspects of this application correspond to the technical solutions of the second aspect of this application
  • the seventh, eighth, eleventh to thirteenth aspects of this application correspond to the technical solutions of the first or second aspect of this application.
  • the beneficial effects obtained by each aspect and the corresponding feasible implementation are similar, and will not be described again.
  • Figure 1 is a signaling diagram of a public alarm system provided in an embodiment of this application.
  • Figure 2 is a schematic diagram of a satellite communication system provided in an embodiment of this application.
  • Figure 3 is a signaling diagram of a communication method provided in an embodiment of this application.
  • Figure 4 is another signaling diagram of a communication method provided in an embodiment of this application.
  • Figure 5 is another signaling diagram of a communication method provided in an embodiment of this application.
  • Figure 6 is an example diagram of a communication method provided in an embodiment of this application.
  • Figure 7 is a signaling diagram of a method for issuing a rate limiting strategy according to an embodiment of this application.
  • Figure 8 is another signaling diagram of a communication method provided in an embodiment of this application.
  • Figure 9 is another signaling diagram of a communication method provided in an embodiment of this application.
  • Figure 10 is another signaling diagram of a communication method provided in an embodiment of this application.
  • Figure 11 is another signaling diagram of a communication method provided in an embodiment of this application.
  • Figure 12 is a schematic block diagram of a communication device provided in an embodiment of this application.
  • Figure 13 is a possible structural diagram of a terminal device provided in an embodiment of this application.
  • Figure 14 is a possible structural diagram of a network device provided in an embodiment of this application, such as a structural diagram of a satellite network device.
  • TNT Non-Terrestrial Network Communication
  • TNT comprising nodes such as satellite networks, high-altitude platforms, and drones
  • TNT is a non-periodic communication system utilizing satellite technology. It uses communication satellites orbiting the Earth as repeaters to transmit user communication data, achieving seamless global connectivity.
  • TNT has been widely applied in various fields, including maritime communication, positioning and navigation, disaster relief, scientific experiments, and Earth observation.
  • the integration of terrestrial mobile communication networks and satellite networks leverages their respective strengths to create a globally seamless, integrated sea, land, air, and space communication network, meeting diverse user service needs.
  • Satellite communication systems can provide uninterrupted communication services regardless of geological disasters. Satellite communication can offer various communication methods in disaster scenarios, including voice, data, and images, meeting the needs of emergency information broadcasting in different situations.
  • PWS Public Warning System
  • PWS Power Message Broadcast
  • PWS Power Message Broadcast
  • RAN is a key element of a communication system, enabling terminal equipment to be connected to other parts of the network via radio.
  • RAN acts as a channel for transmitting information between User Equipment (UE) and the core network, and this network structure provides the necessary infrastructure for wireless communication.
  • UE User Equipment
  • CBCF refers to the service of broadcasting SMS messages to all users within a designated area using the CBCCH (Cell Broadcast Control Channel) of the communication network.
  • CBCF can be configured with base station information to map the broadcast area in the warning message to valid radio cells. Then, it forwards the warning message to the Access and Mobility Management Function (AFM) network element, the upper-level equipment of the radio network RAN, and receives broadcast result feedback from the AFM; determining the start time, end time, and repetition interval of the broadcast.
  • AFM Access and Mobility Management Function
  • NG-RAN Next Generation Radio Access Network
  • NG-RAN is the radio access portion of a 5G network, including components such as gNodeB or eNodeB.
  • gNodeB is a node or base station in a 5G network.
  • eNodeB is a node or base station in a Long Term Evolution (LTE) system.
  • LTE Long Term Evolution
  • AMF Access and Mobility Management Function
  • the Access Message Manager is a crucial component of mobile communication networks, primarily responsible for handling functions related to user equipment (UE) access and mobility.
  • the AMF can forward cell broadcast messages to RAN base stations/cells within the warning area based on the radio cell range (list) specified by the CBCF. It reports the success (or failure) of broadcast message execution to the CBCF, reporting a list of successfully executed broadcast areas or a list of canceled areas. It also reports restart and failure instructions issued by the NG-RAN (Next Generation Radio Access Network) to the CBCF.
  • NG-RAN Next Generation Radio Access Network
  • PWS-IWF Public Warning System - Interworking Function
  • the PWS-IWF is a functional entity in a mobile communication network used to support the Public Alarm System (PWS).
  • the PWS-IWF is primarily responsible for message passing between the AMF and CBCF.
  • the PWS-IWF may not exist between the AMF and CBCF; in this case, the AMF and CBCF will directly exchange messages.
  • CBE is responsible for broadcasting messages in newly built communities or receiving community broadcast information pushed by the early warning information release platform. It can set parameters such as the content of the broadcast message, the early warning level, the broadcast area, the number of retransmissions, the interval, and the encoding method. It can also be responsible for the storage, classification management, querying, and statistical processing of broadcast messages.
  • Session Management Function SMF
  • the Service Provider exists in the 5G core network and is responsible for handling user services to ensure smooth data and communication transmission.
  • the SF can perform functions such as session management, IP (Internet Protocol) address allocation and management, flow control, and billing and charging.
  • first and second are used to distinguish identical or similar items with substantially the same function and purpose.
  • first chip and second chip are used only to distinguish different chips and do not limit their order of execution.
  • terms such as “first” and “second” do not limit the quantity or execution order, and that "first” and “second” do not necessarily imply that they are different.
  • “at least one” refers to one or more, and “more than one” refers to two or more.
  • “And/or” describes the relationship between related objects, indicating that three relationships can exist.
  • a and/or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural.
  • the character “/” generally indicates that the preceding and following related objects are in an “or” relationship.
  • “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one of a, b, or c can represent: a, b, c, a-b, a--c, b-c, or a-b-c, where a, b, and c can be single or multiple.
  • the electronic devices in this application embodiment may include handheld devices with early warning functions, vehicle-mounted devices, etc.
  • some electronic devices include: mobile phones, tablet computers, PDAs, laptops, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, and smart cities.
  • Wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolved public land mobile networks (PLMNs), etc., are not limited to these categories in this application.
  • the electronic device can also be a wearable device.
  • Wearable devices also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes.
  • Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.
  • the electronic device can also be a terminal device in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.
  • the electronic devices in the embodiments of this application may also be referred to as: terminal equipment, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • access terminal user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc.
  • the electronic device or various network devices include a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory).
  • the operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux, Unix, Android, iOS, or Windows.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G future 5th Generation
  • NR new radio access technology
  • V2X vehicle-to-everything
  • V2X can include vehicle to network (V2N), vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), Long Term Evolution-Vehicle (LTE-V), vehicle-to-everything (V2X), machine-type communication (MTC), Internet of Things (IoT), Long Term Evolution-Machine (LTE-M), and machine to machine (M2M).
  • V2N vehicle to network
  • V2V vehicle to vehicle
  • V2I vehicle to infrastructure
  • V2P vehicle to pedestrian
  • LTE-V Long Term Evolution-Vehicle
  • V2X vehicle-to-everything
  • MTC machine-type communication
  • IoT Internet of Things
  • LTE-M Long Term Evolution-Machine
  • M2M machine to machine
  • FIG 1 is a signaling diagram of a public alarm system provided in an embodiment of this application.
  • the public alarm system 100 may include: a cell broadcast entity (CBE), a cell broadcast center (CBCF)/public alarm system-interoperability function (PWS-IWF), an access and mobility management function (AMF), a next-generation radio access network node (NG-RAN node), and user terminals (UEs), etc.
  • CBE cell broadcast entity
  • CBCF cell broadcast center
  • PWS-IWF public alarm system-interoperability function
  • AMF access and mobility management function
  • NG-RAN node next-generation radio access network node
  • UEs user terminals
  • CBE can send an emergency broadcast message to CBCF or PWS-IWF.
  • the emergency broadcast message may include parameters such as content, warning level, broadcast area, number of retransmissions, transmission interval, and encoding scheme.
  • the CBCF or PWS-IWF can identify the NG-RAN receiving the warning message and send a WriteReplaceWarning Request message containing the NG-RAN information to the AMF.
  • NG-RAN information can refer to the NG-RAN's identifier, network address, and/or physical address, etc.
  • step 103 the AMF receives the rewrite warning request message and sends a rewrite confirmation message containing NG-RAN information to the CBCF or PWS-IWF.
  • This rewrite confirmation message is a response to the rewrite warning request message.
  • step 104 after receiving the reconfirmation message, the CBCF or PWS-IWF sends an emergency broadcast response message to the CBE, which is a response to the emergency broadcast message.
  • the AMF can also send a WriteReplaceWarningRequest message to the designated NG-RAN node that received the warning message.
  • NG-RAN can respond to the WriteReplaceWarningRequest message and broadcast a warning message to the UE.
  • the UE can provide a warning notification.
  • an early warning message is a message sent to the UE to provide early warning of disasters or extreme weather. It can be called any of the following: alarm message, warning information, alert information, warning information, prompt information, etc.
  • the NG-RAN node can send a feedback message to the AMF, which can be a response to a WriteReplace Warning Request message.
  • the feedback message can also include information on the broadcast status of the warning message.
  • step 108 the AMF can determine whether the warning message was successfully sent based on the feedback message sent by the NG-RAN node, and generate the corresponding tracking record.
  • the AMF can also send a rewrite warning indication feedback message to the CBCF or PWS-IWF.
  • This rewrite warning indication feedback message can be used to indicate to the CBCF or PWS-IWF that the rewriting and sending of the warning message has been completed.
  • NG-RAN nodes can be cellular base stations.
  • NG-RAN nodes also support NTN-based satellite communication; that is, NG-RAN nodes can be satellite network equipment, thereby enabling 5G services in remote areas or areas with unreliable access links, such as extended mobile broadband and ultra-reliable service communication.
  • a cellular base station can broadcast the warning message to all terminal devices in all cells within its coverage area.
  • a satellite base station can also broadcast the warning message to all cells within its coverage area.
  • FIG. 2 shows a schematic diagram of a satellite communication system.
  • the satellite communication system 1000 may include a satellite 1010 and at least one terminal device 1020.
  • the satellite communication system may include multiple satellites, which can communicate with each other via inter-satellite links.
  • this application only shows the case of a single satellite.
  • the coverage area 1030 of satellite 1010 may include multiple cells, such as cells 0-19 shown in Figure 2. Each UE in each cell can receive warning messages.
  • the number and division of cells shown in Figure 2 are merely exemplary, and this embodiment does not impose excessive limitations on the number and range of cells for the satellite or satellite network device.
  • UE 1020 shown in Figure 2 represents three UEs in cell 9; UEs in other cells, such as cells 0-8 and 10-19, are not shown.
  • the three UEs shown in cell 9 are also exemplary, and this embodiment does not impose excessive limitations on the number of UEs in each cell.
  • the satellites in the satellite communication system 1000 can be ultra-dense low earth orbit (LEO) satellites, non-geostationary earth orbit (NGEO) satellites, middle earth orbit (MEO) satellites, or geostationary earth orbit (GEO) satellites.
  • LEO ultra-dense low earth orbit
  • NGEO non-geostationary earth orbit
  • MEO middle earth orbit
  • GEO geostationary earth orbit
  • the satellites in the satellite communication system 1000 can provide communication services, navigation services, and positioning services to terminal devices through multiple beams.
  • the satellites in the satellite communication system 1000 employ multiple beams to cover service cells, and different beams can communicate through one or more of time division, frequency division, and space division.
  • the satellites in the satellite communication system 1000 can wirelessly communicate with terminal devices through broadcast communication signals and navigation signals, and can also wirelessly communicate with ground station equipment.
  • the satellites mentioned in this application embodiment can also be referred to as satellite network equipment, specifically satellite base stations, and may include orbital receivers or repeaters for relaying information, or network equipment mounted on a satellite.
  • the NG-RAN node broadcasts warning messages indiscriminately to all cells, all UEs within the covered cells will receive the warning, leading to frequent use of the satellite communication network and causing communication resource congestion. Especially in warning scenarios, significant waste of communication resources may result in untimely warnings, threatening users' lives and property. Furthermore, in satellite communication systems, the coverage area of satellite network equipment is much wider than that of terrestrial base stations. Therefore, the number of terminal devices within the coverage area of satellite network equipment is far greater than the number within the coverage area of terrestrial base stations, making the congestion of communication resources by satellite network equipment even more pronounced.
  • the control terminal device performs a first action.
  • This first action reduces the communication resources occupied by the device, freeing up more communication resources for disaster relief communications. This reduces the congestion of communication resources during disasters, ensures timely early warnings, and effectively protects the lives and property of users.
  • FIG. 3 is a signaling diagram of a communication method provided in an embodiment of this application. As shown in Figure 3, the communication method 300 includes the following steps:
  • Step 301 The terminal device receives a first instruction message sent by the network device.
  • the first instruction message is used to instruct the terminal device to perform a first action when a disaster occurs in the area covered by the network device.
  • the first indication information can be used to determine the early warning detection result of the terminal device.
  • the early warning detection results may include whether the terminal device is located in the disaster area or not.
  • the first indication information may indicate whether the terminal device is located in a disaster area or not. If the terminal device is located in a disaster area, the first action is a first execution action. If the terminal device is not located in a disaster area, the first action is a second execution action.
  • the coverage area of a network device can refer to the area where the network device can provide communication services, or the area formed by the range of the network device's broadcast signals.
  • the first indication information is carried in the first system information block (SIB), which may be, for example, SIB7.
  • SIB system information block
  • the first instruction information can be carried in the first SIB7, and a certain field in the first SIB7 can be written with the first instruction information.
  • the network device is further configured to send a first SIB
  • the terminal device is further configured to receive the first SIB sent by the network device and read first indication information from the first SIB.
  • the first indication information can be a field of the first SIB.
  • This field can be an existing field in the first SIB or a custom field designed to carry the first indication information.
  • the field length or size can be set according to requirements, and this embodiment does not impose too many restrictions on it.
  • Step 302 The terminal device performs the first action to implement a flow control strategy on the terminal device's traffic.
  • communication resources may include at least one of the following: radio resources and core network resources.
  • Wireless resources may include frequencies or bandwidths, sessions, chips, and other resources allocated by network devices to terminal devices.
  • Core network resources may include IP addresses, bearer channels, and other resources allocated by network devices to terminal devices.
  • communication resources in this application may refer to PDU sessions.
  • the communication resources occupied by terminal devices can be reduced by methods such as rate limiting or deactivation of PDU sessions.
  • flow control policies can specifically refer to the implementation of flow control policies on terminal devices. Specifically, this can refer to rate limiting or deactivation operations performed on PDU sessions.
  • the traffic of a terminal device can refer to the data transmission rate of a PDU session that is originally active or in an active state. That is, implementing a flow control strategy for the traffic of a terminal device can mean: deactivating the PDU session, and/or limiting the flow of the PDU session.
  • the method further includes: step 303, the network device broadcasting a warning message. Accordingly, the terminal device can receive the warning message broadcast by the network device.
  • Network equipment can be, for example, the NG-RAN shown in Figure 1 or the satellite network equipment shown in Figure 2.
  • the network device provides action instructions to terminal devices within its coverage area.
  • the terminal devices can then receive the instructed first action.
  • flow control strategies can be implemented on the terminal devices' traffic, thereby reducing the communication resources occupied by the terminal devices and freeing up more communication resources for disaster relief communications. This reduces the congestion of communication resources during disasters, ensures timely early warnings, and effectively protects the lives and property of users.
  • the first indication information includes: disaster location information and/or non-disaster location information.
  • Disaster location information can be associated with a first action
  • non-disaster location information can be associated with a second action.
  • the first action is either the first action or the second action.
  • disaster location information can be used to indicate disaster areas.
  • Non-disaster location information can be used to indicate non-disaster areas.
  • the first action associated with disaster location information can refer to determining the first action as the first action when the terminal device is located in the disaster area indicated by the disaster location information.
  • the second action associated with non-disaster location information can refer to determining the second action as the first action when the terminal device is located in the non-disaster area indicated by the non-disaster location information.
  • the network device may first determine the disaster location information and/or non-disaster location information, and generate the first indication information based on the disaster location information and/or non-disaster location information.
  • a network device can receive a rewrite warning request message sent by a CBCF or PWS-IWF.
  • the rewrite warning request message may include disaster location information and/or non-disaster location information.
  • the network device can also receive location messages sent by meteorological satellites, which include disaster location information and/or non-disaster location information. That is, the network device can also establish a communication link with the meteorological satellite, allowing the satellite to send location messages to the terminal device.
  • meteorological satellites which include disaster location information and/or non-disaster location information. That is, the network device can also establish a communication link with the meteorological satellite, allowing the satellite to send location messages to the terminal device.
  • the network device can also receive location messages sent by the Cell Broadcast Entity (CBE) in the PWS, which may include disaster location information and/or non-disaster location information. That is, the CBE can directly send location messages to the network device.
  • CBE Cell Broadcast Entity
  • location messages can be carried in RRC, MAC-CE, or proprietary signaling. This embodiment does not impose excessive restrictions on the message type of location messages.
  • a location message is a message used to describe messages carrying disaster location information and/or non-disaster location information. Location message is merely a term for a message; in specific applications, it can also be called a first message, first location message, location information, target location information, target location message, etc. This embodiment does not impose excessive restrictions on this.
  • the first indication information may carry disaster location information and/or non-disaster location information. These two types of location information can instruct the terminal device to perform a first action. That is, disaster location information is associated with the first action, and non-disaster location information is associated with a second action.
  • disaster location information is associated with the first action
  • non-disaster location information is associated with a second action.
  • FIG. 4 is a signaling diagram of a communication method provided in an embodiment of this disclosure.
  • the communication method 400 may include the following steps:
  • CBE can send an emergency broadcast message to CBCF or PWS-IWF.
  • the emergency broadcast message may include parameters such as content, warning level, broadcast area, number of retransmissions, transmission interval, and encoding scheme.
  • the CBCF or PWS-IWF can identify the NG-RAN receiving the warning message and send a WriteReplaceWarning Request message containing the NG-RAN information to the AMF.
  • NG-RAN information can refer to information such as the NG-RAN's identifier, network address, and/or physical address.
  • the AMF receives the rewrite warning request message and sends a rewrite confirmation message containing NG-RAN information to the CBCF or PWS-IWF.
  • This rewrite confirmation message is a response to the rewrite warning request message.
  • step 404 after receiving the reacknowledgment message, the CBCF or PWS-IWF sends an emergency broadcast response message to the CBE, which is a response to the emergency broadcast message.
  • the AMF can also send a WriteReplaceWarningRequest message to the identified network device receiving the warning message.
  • the satellite network device can respond to the WriteReplace Warning Request message and broadcast a warning message to the UE.
  • the UE can receive the warning message.
  • an early warning message is a message sent to the UE to provide early warning of disasters or extreme weather. It can be called any of the following: alarm message, warning information, alert information, warning information, prompt information, etc.
  • the satellite network device may also send a first indication message to the UE, which is used to instruct the terminal device to perform a first action when a disaster occurs in the area covered by the satellite network device.
  • the terminal device may perform a first action to implement a flow control strategy on the terminal device's traffic.
  • the network device can also send a feedback message to the AMF, which can be a response to the WriteReplaceWarningRequest message.
  • the feedback message can also include information on the broadcast status of the warning message.
  • the AMF can determine whether the warning message was successfully sent based on the feedback message sent by the network device, and generate a corresponding tracking record.
  • the satellite network device can also send first indication information to the UE.
  • the first indication information can be used to instruct the terminal device to perform a first action when a disaster occurs in the area covered by the satellite network device.
  • the execution of the first action can effectively reduce the communication resources occupied by the terminal device.
  • FIG. 5 shows a flowchart of a communication method provided in an embodiment of this application.
  • the communication method 500 may include:
  • Step 501 The terminal device receives the first instruction information.
  • Step 502 The terminal device determines the early warning detection result based on the first instruction information.
  • the early warning detection result includes whether the terminal device is located in a disaster area or not.
  • a disaster area refers to the area within the network device's coverage that has experienced a disaster.
  • the first indication information may include disaster location information and/or non-disaster location information.
  • the disaster location information and/or non-disaster location information can be used to perform early warning detection on terminal devices to obtain early warning detection results.
  • determining the early warning detection result of the terminal device according to the first indication information may include:
  • the communication method in this application embodiment further includes:
  • the warning detection result of the terminal device is determined to be located in the disaster area
  • the terminal device's early warning detection result is determined to be not located in the disaster area
  • the terminal device's early warning detection result is determined to be not located in the disaster area
  • the warning detection result of the terminal device is determined to be located in the disaster area.
  • the terminal device is not located in a disaster area
  • the terminal device is located in a non-disaster area
  • the terminal device is located in a disaster area can also be described as “the terminal device is not located in a non-disaster area.”
  • the description of whether the terminal device is located in a disaster area is not overly limited in this application embodiment.
  • the primary location information can refer to the location information of the terminal device.
  • Location information can be represented using a location identifier or real-time location.
  • the first location information may refer to the location identifier corresponding to the serving cell accessed by the terminal device.
  • the location identifier may be represented by at least one of the following: tracking area code, tracking area identifier, or area configuration, etc.
  • Real-time location may refer to longitude, latitude, altitude, and other data collected by a positioning system.
  • the first location information is the location identifier.
  • Disaster location information including first location information can mean that the location identifiers included in the disaster location information contain the first location information. Conversely, disaster location information excluding first location information can mean that the location identifiers included in the disaster location information do not contain the first location information.
  • non-disaster location information including first location information can mean that the tracking area included in the non-disaster location information contains a location identifier with first location information.
  • non-disaster location information not including first location information can mean that the tracking area included in the non-disaster location information does not contain a location identifier with first location information.
  • the first location information is the real-time location.
  • Disaster location information including first location information can refer to real-time location information within the disaster area corresponding to the disaster location information that includes the first location information.
  • disaster location information excluding first location information can refer to real-time location information within the disaster area corresponding to the disaster location information that does not include the first location information.
  • non-disaster location information including first location information can refer to real-time location information within the non-disaster area corresponding to the non-disaster location information that includes the first location information.
  • non-disaster location information excluding first location information can refer to real-time location information within the non-disaster area corresponding to the non-disaster location information that does not include the first location information.
  • step 503 may include: if the warning detection result indicates that the terminal device is located in a disaster area, then determine the first action to be performed. If the warning detection result indicates that the terminal device is not located in a disaster area, then determine the second action to be performed.
  • Step 504 The terminal device performs a first action.
  • the first action can be either a first execution action or a second execution action.
  • the terminal device performing the first action can specifically refer to the terminal device performing a first execution action or a second execution action.
  • first and second execution actions are merely descriptions of actions or instructions to be performed by the terminal device.
  • the use of “first” and “second” is only for distinguishing different actions by name and does not imply any order or magnitude.
  • the first and second execution actions can also be described using other terms, such as first sub-action and second sub-action, or first target action and second target action.
  • action in this application can also use similar terms, such as signaling, command, instruction, operation, processing, etc., and this application does not impose excessive limitations on this.
  • the terminal device is located in a disaster area by early warning detection, thereby distinguishing between terminal devices in the disaster area and those in the non-disaster area.
  • Different actions are set for terminal devices in the disaster area and those in the non-disaster area, thereby implementing different traffic control strategies for terminal devices in different areas, completing early warning of disaster areas in a timely and accurate manner, reducing public panic, and improving disaster response efficiency.
  • the first action refers to the first action to be performed.
  • the first action refers to the second action to be performed.
  • Figure 6 shows an example diagram of a communication method 600 provided in an embodiment of this application.
  • the network device can send a warning message to the terminal device.
  • the network device can also send first indication information to the terminal device.
  • the terminal device can determine whether it is located in a disaster area based on the disaster location information and/or non-disaster location information in the first indication information. If yes, step 604 is executed; otherwise, step 605 is executed.
  • Step 604 Determine the first action as the first action.
  • Step 605 Determine the second action as the first action.
  • the network device can execute the first action in step 606.
  • the terminal device when the terminal device is located in a disaster area, it can perform a first execution action. When the terminal device is located in a non-disaster area, it can perform a second execution action. Executing different actions under different circumstances allows the terminal device to adjust the actions to be performed in a timely manner according to its location, solving the problem of confirming execution actions under different location states and providing a reliable guarantee for reducing the occupation of communication resources.
  • the coverage area of network devices can be divided into disaster zones and non-disaster zones.
  • the location information corresponding to the disaster zones can be disaster location information
  • the location information corresponding to the non-disaster zones can be non-disaster location information.
  • disaster location information may include at least one of the following: a first tracking area code, a first tracking area list, a first tracking area identifier, and a first area configuration.
  • Non-disaster location information may include at least one of the following: a second tracking area code, a second tracking area list, a second tracking area identifier, and a second area configuration.
  • a Tracking Area Code is defined for cell management.
  • the Tracking Area Code is used to identify and manage tracking areas in a mobile communication network.
  • One Tracking Area Code can correspond to one or more cells. Different tracking areas can be distinguished using the Tracking Area Code, thereby enabling the management and control of different areas.
  • the Tracking Area List (TAL) is a list of tracking areas, which can include multiple tracking area codes.
  • TAI Tracking Area Identity
  • MCC Mobile Country Code
  • MNC Mobile Network Code
  • TAC Tracking Area Identity
  • the MCC identifies the country where the PLMN (Public Land Mobile Network) is located.
  • the MNC identifies the PLMN within a country.
  • Area configuration refers to the process of logically dividing routers in a network into different groups/areas when using routing protocols, and then managing and configuring these areas.
  • tracking area codes, tracking area lists, tracking area identifiers, and/or area configurations are used to define location information, making the representation of disaster location information and/or non-disaster location information more flexible, adaptable to more application scenarios, enriching the information content of the first indication information, and effectively improving the stability and reliability of the system's expression.
  • the first action can be either a first execution action or a second execution action.
  • the first execution action can be at least one of the following:
  • the first PDU session can be a PDU session associated with disaster warning within the terminal device's PDU sessions.
  • the second PDU session can be a PDU session unrelated to disaster warning within the terminal device's PDU sessions.
  • a Protocol Data Unit (PDU) session can refer to the exchange of PDUs between terminal devices and network devices.
  • PDU Protocol Data Unit
  • the execution of the first execution action by the terminal device may specifically include at least one of the following:
  • the terminal device will issue an early warning notification.
  • the terminal device maintains the first protocol data unit (PDU) session in an active state.
  • PDU protocol data unit
  • the terminal device maintains the same traffic for the first PDU session.
  • the terminal device implements a rate limiting policy.
  • the second PDU session of the terminal device is deactivated.
  • the terminal device can also perform early warning prompts and deactivate the second PDU session.
  • Timely early warning prompts can reduce the number of active PDU sessions, thereby reducing the terminal device's consumption of communication resources.
  • the terminal device can also perform early warning prompts, deactivate the second PDU session, and activate the first PDU session. This achieves timely and effective early warning prompts while reducing the number of PDU sessions and lowering the communication resources occupied by the aggregated PDU sessions, effectively reducing communication resource consumption.
  • the first PDU session is a PDU session associated with disaster early warning
  • the second PDU session is a PDU session unrelated to disaster early warning.
  • a PDU session associated with disaster early warning can be, for example, a PDU session capable of receiving messages related to disaster early warning.
  • a PDU session unrelated to disaster early warning can be, for example, a PDU session that does not participate in receiving messages related to disaster early warning.
  • the terminal device can determine the session type of the PDU session based on its function or scenario. Session types include PDU sessions associated with disaster early warning, or PDU sessions unrelated to disaster early warning.
  • a rate limiting strategy can refer to the upper limit set for a terminal device's metrics that represent traffic.
  • a rate limiting strategy may include at least one of the following: the maximum number of PUD sessions that a terminal device can activate; the maximum bandwidth occupied by a single PDU session, etc.
  • other metrics that can characterize traffic such as the maximum number of network device accesses or the number of UEs allowed to access a network device, can also be considered as implementations of a rate limiting strategy.
  • the specific content of the rate limiting strategy can be found in the description of the embodiments below, which are not limited in detail in this embodiment.
  • rate limiting strategy can be selected and adjusted according to specific business scenarios and needs. This embodiment does not impose too many restrictions on the specific implementation of the rate limiting strategy.
  • the terminal device's execution of the warning notification may include displaying a warning notification page, which may include notification text.
  • the notification text could be, for example, "A certain type of extreme weather has occurred in your area.” It may also display a warning notification pop-up window, which may include a question.
  • warning notifications can also be delivered via SMS, instant messaging, etc.
  • a session being in an active state can mean that the connection between the network device and the terminal device remains active.
  • an active state can mean that the communication link established by the terminal device and the network device for the PDU session remains connected.
  • the terminal device can send a heartbeat request (such as a PING request) to the network device within the session timeout period. After receiving the heartbeat request, the network device will reactivate the corresponding session.
  • session deactivation can refer to the disconnection or failure of the communication link established between the terminal device and the network device for a PDU session.
  • a terminal device needs to deactivate a session, it can report the PDU session that needs to be deactivated to the SMF (Session), and the SMF will then deactivate the PDU session.
  • SMF Session
  • the terminal device by carrying action information in the first instruction information, the terminal device can clearly understand the specific action to be performed by the first execution action, so that the terminal device can respond to the warning action in a timely manner and improve the efficiency and effectiveness of action execution.
  • the second action can be at least one of the following:
  • the third PDU session can be a PDU session unrelated to disaster early warning.
  • a PDU session unrelated to disaster early warning can refer to a session unrelated to call functions or a session that consumes high communication resources.
  • a third PDU session could be a PDU session used to acquire video, or a PDU session used to browse web pages.
  • the terminal device not executing the warning prompt may mean that the terminal device does not execute the output operation of the warning content.
  • Deactivating the third PDU session of the terminal device may mean deactivating the PDU session in the terminal device that is not related to the disaster warning.
  • terminal device performing the second execution action may specifically include at least one of the following:
  • the terminal device does not execute the warning prompt.
  • the terminal device deactivates the third PDU session.
  • the terminal device implements a rate limiting policy.
  • the terminal device can trigger the deactivation of the second or third PDU session.
  • the network device can also trigger the deactivation of the second or third PDU session of the terminal device.
  • the network device can refer to any device such as an AMF or base station; this embodiment does not impose excessive limitations on this.
  • the terminal device by carrying action information in the first instruction information, the terminal device can clearly understand the specific action to be performed by the second execution action, so that the terminal device can respond to the warning action in a timely manner and improve the efficiency and effectiveness of action execution.
  • the first instruction information may carry action information, which can be used to determine the first and second actions.
  • the first instruction information may carry first action information and second action information.
  • the first action information is used to determine the first action to be performed, and the second action information is used to determine the second action to be performed.
  • the communication method of this application also includes: determining a first execution action based on first action information; and determining a second execution action based on second action information.
  • the first action information can be the action identifier of the first action to be performed.
  • the second action information can be the action identifier of the second action to be performed.
  • the first action information can be the action identifier information of each first target action in the first execution action.
  • the second action information can be the action identifier information of each second target action in the second execution action.
  • At least one action can be predefined, and each action is assigned action identification information.
  • the action identification information uniquely identifies each action.
  • the action identification information may include at least one of the following: action name, action identifier, action number, or action code.
  • the action identification information may include one or more characters, such as symbols, numbers, letters, or special characters.
  • the action identifiers are as follows: First, the action identifier for executing a warning notification. Second, the action identifier for keeping PDU sessions associated with the disaster warning active. Third, the action identifier for deactivating PDU sessions unrelated to the disaster warning. Fourth, the action identifier for executing a rate-limiting policy. Fifth, the action identifier for maintaining unchanged session traffic. Sixth, the action identifier for not executing a warning notification. Seventh, the action identifier for canceling a warning notification. Eighth, the action identifier for reactivating a deactivated PDU session. Ninth, the action identifier for canceling a rate-limiting policy.
  • action identification information can be represented using numbers.
  • the first information can be represented by "1", the second by “2”, the third by “3”, the fourth by "4", the fifth by "5", the sixth by “6", the seventh by "7”, the eighth by “8", and the ninth by “9".
  • the characters used for each of these action identification information are merely illustrative.
  • the action information can be action identifier information for each action. That is, the action information can directly carry action identifier information to directly determine the first and second actions to be executed.
  • the first action information can be the action identifier information of each first target action.
  • the second action information can be the action identifier information of each second target action.
  • the first target action can be an action in the first execution action.
  • the second target action is an action in the second execution action.
  • the first action information can be, for example, "12345”
  • the second action information can be, for example, "634".
  • determining the first execution action according to the first action information may include: determining at least one first target action based on at least one action identifier information in the first action information, and determining the at least one first target action as the first execution action.
  • Determining the second execution action according to the second action information may include: determining at least one second target action based on at least one action identifier information in the second action information, and determining the at least one second target action as the second execution action.
  • the action information can also refer to the execution action identifier of a predefined execution action.
  • at least one execution action can be pre-established based on at least one action, and a corresponding execution action identifier can be set for each execution action.
  • execution actions namely the first execution action, the second execution action, and the third execution action, and select a corresponding action for each execution action from at least one of the above actions.
  • the specific actions of the first and second execution actions can be as described above, and the specific actions of the third execution action can be as described below, which will not be repeated here.
  • the first execution action can be associated with a corresponding execution action identifier, for example, simply referred to as the first identifier.
  • the second execution action can be associated with a corresponding execution action identifier, for example, simply referred to as the second identifier.
  • the third execution action can be associated with a corresponding execution action identifier, for example, simply referred to as the third identifier.
  • the first identifier is represented by “01” and the second identifier is represented by “10". That is, the execution action identifier of the first action information is "01" and the execution action identifier of the second action information is "10".
  • the terminal device is further configured to: if the first action information is a first identifier, determine the first execution action corresponding to the first identifier; and if the second action information is a second identifier, determine the second execution action corresponding to the second identifier.
  • the execution action can be indicated using action information. This allows for adjustments to the action based on the disaster area division, improving the efficiency and flexibility of action setting.
  • a third PDU session can refer to a non-essential session within the PDU session with the terminal device.
  • it could refer to a session that consumes significant communication resources.
  • at least one of the following is also included:
  • the bandwidth requirement of the third PDU session is greater than or equal to the bandwidth threshold.
  • the network interaction frequency of the third PDU session is greater than or equal to the frequency threshold.
  • the terminal device can identify at least one PDU session that is active. It obtains the bandwidth requirements of each of the at least one active PDU session, compares the bandwidth requirements of each active PDU session with a bandwidth threshold, and if the bandwidth requirement of any PDU session is greater than or equal to the bandwidth threshold, then that PDU session is identified as the third PDU session.
  • bandwidth requirements refer to the bandwidth needed by a PDU session in a specific call scenario. Taking the use of a PDU session to obtain video data packets as an example, the bandwidth requirement of a PDU session is the minimum bandwidth required for transmitting video data packets when the video is playing normally without any stuttering.
  • Bandwidth can be considered as the rate of data transmission, that is, the amount of data that can be transmitted per unit of time. Units of measurement for bandwidth include bits per second (bps), kilobits per second (kbps), megabits per second (Mbps), or gigabits per second (Gbps). The higher the bandwidth, the faster the data transmission speed.
  • network interaction frequency refers to the frequency at which terminal devices exchange data or information with network devices through PDU sessions. The higher the network interaction frequency of a PDU session, the more communication resources are required.
  • PDU sessions with bandwidth requirements greater than or equal to a bandwidth threshold are selected to deactivate PDU sessions with high bandwidth requirements, which can effectively reduce the communication resources occupied by terminal devices. Furthermore, PDU sessions with network interaction frequencies greater than or equal to a frequency domain threshold can also be selected.
  • the first or second execution action may include implementing a rate limiting policy.
  • PDU sessions are generally managed by the SMF; therefore, the rate limiting policy can be provided by the SMF.
  • the SMF can distribute the rate limiting policy to the User Plane Function (UDP) or AMF, which then sends it to the network device.
  • the network device then distributes the rate limiting policy to the terminal device.
  • UDP User Plane Function
  • the communication method provided in this application may also include:
  • Receive rate limiting policies sent by network devices wherein the rate limiting policies are issued to network devices by User Plane Function (UDF) or Access Mobility Management (AMF), and the rate limiting policies of AMF or UDF are provided by SMF.
  • UDF User Plane Function
  • AMF Access Mobility Management
  • the terminal device After receiving the rate limiting policy from the network device, the terminal device also configures the rate limiting policy locally.
  • Figure 7 is a signaling diagram of a rate limiting strategy distribution method 700 provided in an embodiment of this application.
  • Step 701 The SMF sends the rate limiting policy to the AMF/UDF.
  • the AMF/UDF can receive the rate limiting policy.
  • Step 702 The AMF/UDF sends rate limiting policies to the network devices.
  • the network devices can receive the rate limiting policies.
  • Step 703 The network device sends a rate limiting policy to the terminal device. Accordingly, the terminal device can receive the rate limiting policy sent by the network device and configure the rate limiting policy locally.
  • Step 704 The network device sends a first instruction message to the terminal device.
  • the first instruction message can be used to instruct the terminal device on its first action when a disaster occurs in the area covered by the network device.
  • the first action can be a first execution action or a second execution action.
  • the first execution action may include executing a rate limiting policy.
  • the second execution action may include executing a rate limiting procedure.
  • Step 705 The terminal device performs the first action to implement the rate limiting policy.
  • executing a rate limiting policy can be a predefined action.
  • the first instruction information may carry an action identifier for the action "execute rate limiting policy," or the action corresponding to a predefined execution action identifier may include the action "execute rate limiting policy.” Therefore, if the first action includes executing a rate limiting policy, the terminal device can execute the pre-configured rate limiting policy.
  • the terminal device can be configured with a rate limiting policy and execute the rate limiting policy when necessary.
  • Pre-configuration of the rate limiting policy allows for more flexible indication of the actions the terminal device needs to perform, providing a more effective way to reduce communication resource consumption and improving the efficiency and flexibility of communication resource control.
  • rate limiting policies can refer to methods of restricting traffic to PDU sessions unrelated to disaster warning.
  • rate limiting policies may include the maximum bit rate of data transmission for PDU sessions unrelated to disaster warning.
  • implementing a rate-limiting policy can mean limiting the data transmission rate of PDU sessions unrelated to disaster early warning to within the maximum bit rate. That is, controlling the data transmission rate of PDU sessions unrelated to disaster early warning to be less than or equal to the maximum bit rate.
  • the data transmission rate of PDU sessions unrelated to disaster early warning in the terminal device can be effectively reduced, which directly reduces the communication resources occupied by the terminal device, facilitates the rapid release of unnecessary occupation of communication resources, and enables communication resources to be used more effectively for disaster early warning, thereby improving resource utilization.
  • the above embodiments illustrate how network devices can provide disaster warnings when a disaster occurs to protect users' lives and property. When the disaster ends, the network devices can be notified to cancel the disaster warning.
  • FIG 8 is a signaling diagram of a communication method provided in an embodiment of this application.
  • This communication method is an example diagram of a disaster warning cancellation scenario in the prior art.
  • the communication method 800 in the disaster warning cancellation scenario may include the following steps:
  • step 801 the CBE can send a stop emergency broadcast message to the CBCF or PWS-IWF.
  • the CBCF or PWS-IWF may send a stop warning request containing warning area information to the AMF after receiving the stop emergency broadcast message.
  • step 803 the AMF receives the stop warning request and responds to it by sending a stop warning response message to the CBCF or PWS-IWF.
  • step 804 after receiving the stop warning response message, the CBCF or PWS-IWF can send a stop warning response message to the CBE.
  • This stop warning response message is a response to the CBE's stop emergency broadcast message.
  • the AMF can also send a warning cancellation request to the NG-RAN node.
  • step 806 the NG-RAN node can cancel the broadcast warning message after receiving the warning cancellation request.
  • the NG-RAN node can send a cancellation response message to the AMF.
  • the AMF can send a stop warning broadcast instruction to the CBCF or PWS-IWF.
  • step 809 the AMF can record the information transmission results in the tracking log.
  • the network devices can be notified to cancel the disaster warning when the disaster ends through the PWS system.
  • Timely cancellation of the disaster warning provides a reliable guarantee for users to resume normal work and life.
  • the NG-RAN node simply cancels the broadcast warning message, but the terminal device may still be in a rate-limited state.
  • rate-limiting policies may still be applied to PDU sessions unrelated to disaster warnings.
  • network devices can also issue instruction information after receiving a warning cancellation request to instruct terminal devices to resume normal use of communication resources.
  • FIG. 9 is a signaling diagram of a communication method 900 provided in an embodiment of this application.
  • the communication method 900 may include the following steps:
  • Step 901 The terminal device receives the second instruction information sent by the network device.
  • the second instruction information is used to instruct the terminal device to perform a second action when the disaster is resolved in the area covered by the network device.
  • Step 902 The terminal device performs the second action.
  • the second action is used to restore the terminal device's normal use of communication resources.
  • the network device before sending the second instruction information, the network device also performs step 903: the terminal device cancels the broadcast warning message.
  • the network device may also receive a warning cancellation request before canceling the broadcast warning message.
  • the transmission process of the warning cancellation message request can be referred to the embodiment shown in Figure 8, and will not be repeated here.
  • the network device may also receive the first indication information before receiving the second indication information.
  • the second instruction information can be carried in a second SIB.
  • the second SIB could be, for example, SIB7.
  • the terminal device is also used to receive the second SIB and read the second indication information from the second SIB.
  • the second indication information can be a field of the second SIB, which can be an existing field in the second SIB or a custom field designed to carry the second indication information.
  • the field length or size can be set according to requirements, and this embodiment does not impose too many restrictions on it.
  • the terminal device can also receive second instruction information and perform a second action under the instruction of the second instruction information, so that the terminal device can restore normal use of communication resources, restore the communication function of the terminal device in a timely manner, and improve the efficiency and reliability of communication recovery.
  • Figure 10 is a signaling diagram of a communication method provided in an embodiment of this disclosure.
  • the communication method 10 may include the following steps:
  • step 1001 the satellite network equipment can cancel the broadcast warning message after receiving the warning cancellation request.
  • the satellite network device may send a second instruction message to the terminal device.
  • the second instruction message may be used to instruct the terminal device to perform a second action when the disaster in the area covered by the satellite network device is resolved, the second action being used to restore the terminal device's normal use of communication resources.
  • the terminal device may perform a second action to restore normal use of communication resources.
  • the satellite network device can promptly send a second instruction message to the terminal device.
  • the second instruction message can instruct the second action to be performed when the coverage area of the satellite network device is lifted.
  • the second action is performed by the terminal device, the normal use of communication resources can be restored, thereby improving the communication recovery efficiency of the terminal device.
  • the communication method 1100 may include the following steps:
  • Step 1101 The satellite network equipment broadcasts an early warning message to the terminal equipment.
  • the terminal equipment can receive the broadcast early warning message sent by the satellite network equipment.
  • Step 1102 The satellite network device sends a first instruction message to the terminal device.
  • the terminal device can receive the first instruction message sent by the satellite network device.
  • the first instruction message is used to instruct the terminal device on its first action in the event of a disaster in the area covered by the satellite network device.
  • Step 1103 The terminal device performs the first action to implement a flow control strategy on the terminal device's traffic.
  • Step 1104 The satellite network device sends a second instruction message to the terminal device. Accordingly, the terminal device can receive the second instruction message sent by the satellite network device. The second instruction message is used to instruct the terminal device to perform a second action when the disaster in the area covered by the satellite network device is resolved.
  • Step 1105 The terminal device performs a second action to restore the communication resources occupied by the terminal device.
  • satellite network equipment can acquire disaster location information and/or non-disaster location information in advance.
  • the satellite network device before sending the second indication information to the terminal device, the satellite network device also performs step 1106: receiving a warning cancellation request. After receiving the warning cancellation request, the satellite network device further performs step 1007: canceling the broadcast warning message.
  • the second instruction information may include disaster location information and/or non-disaster location information.
  • the disaster location information and/or non-disaster location information are associated with the third action, and the second action is the third action.
  • terminal devices regardless of whether they provide disaster location information or non-disaster location information, can execute a third action. Executing this third action restores the normal communication resources of the terminal devices. This reduces the occupation of communication resources on the terminal devices during disaster early warning requirements, and ensures timely restoration of normal communication when the disaster early warning is canceled, thereby improving the efficiency and effectiveness of communication resource control.
  • the third execution action is at least one of the following:
  • the communication method provided in the embodiments of this application may further include at least one of the following:
  • Terminal devices can cancel warning prompts
  • the terminal device reactivates the previously activated PDU session.
  • the process of a terminal device canceling a warning prompt can include either closing the displayed warning prompt page or displaying a message indicating that the warning has been canceled. Displaying the message could mean showing a warning cancellation prompt page or a pop-up window.
  • the warning cancellation prompt page or pop-up window can include a text message, such as "The extreme weather of a certain type in your area has returned to normal.” Alternatively, warning cancellation prompts can also be sent via SMS, instant messaging, etc.
  • reactivating an activated PDU session by the terminal device can refer to the terminal device reactivating a deactivated PDU session.
  • a terminal device may initiate a reconnection request for a deactivated PDU session to a network device.
  • the network device allocates corresponding communication resources for the PDU session and makes a response.
  • rate limiting strategies can refer to the maximum data transmission rate of PDU sessions that are unrelated to disaster warnings.
  • Removing the rate limiting policy on a terminal device can mean that the terminal device removes the limit on the maximum bit rate of data transmission for a PDU session.
  • the maximum data transmission rate of the terminal device's PDU session can be greater than the maximum bit rate of data transmission specified in the rate limiting policy.
  • the third execution action is defined in the same way as the first or second execution action.
  • the third action information of the third execution action can also be used as sub-information or part of the second instruction information.
  • the third action information can be the execution action identifier of the third execution action.
  • the third action information can be the action identifier information of each third target action in the third execution action.
  • the third action information can be represented by "789". If we use the execution action identifier, the third action information can be represented by, for example, a third identifier.
  • the third identifier can be, for example, "11”.
  • the terminal device can clearly understand the specific action to be performed, and respond in a timely manner to the cancellation of the disaster warning, thereby improving the efficiency and effectiveness of action execution.
  • FIG 12 is a schematic block diagram of a communication device 1200 provided in an embodiment of this application.
  • the communication device 1200 may include a processing unit 1201 and a transceiver unit 1202.
  • the communication device 1200 can implement the operation of the corresponding terminal device in the above method embodiments.
  • the communication device can be a terminal device or a component configured in the terminal device, such as a chip or circuit.
  • This communication device can implement the corresponding operations of the terminal device in the method embodiments shown in Figures 3 to 11.
  • the transceiver unit 1202 can execute the steps in part 301 of the method
  • the processing unit 1201 can execute the steps in part 302 of the method.
  • each unit in the communication device 1200 and the other operations and/or functions described above are respectively for implementing the corresponding processes in the method embodiment shown in Figure 3.
  • the communication device 1200 can implement the operation of the corresponding network device in the above method embodiments.
  • the communication device can be a network device or a component configured in the network device, such as a chip or circuit.
  • This communication device can implement the corresponding operations of the network device in the method embodiments shown in Figures 3 to 11.
  • the transceiver unit 1202 can execute some steps of 301 in the method.
  • each unit in the communication device 1200 and the other operations and/or functions described above are respectively for implementing the corresponding processes in the method embodiment shown in Figure 3.
  • the transceiver unit 1202 can be used to: receive first indication information sent by the network device, the first indication information being used to instruct the terminal device to take a first action when a disaster occurs in the area covered by the network device.
  • the transceiver unit 1202 is also used to: send first instruction information to the terminal device.
  • the processing unit 1201 can be used to: perform a first action to implement a flow control strategy on the traffic of the terminal device.
  • the processing unit 1201 is further configured to: determine a first action based on the first instruction information.
  • the first instruction information includes disaster location information and/or non-disaster location information
  • the disaster location information is associated with a first execution action
  • the non-disaster location information is associated with a second execution action, the first action being either the first execution action or the second execution action.
  • the processing unit 1201 is also configured to: determine a first action based on the disaster location information and/or non-disaster location information in the first instruction information.
  • the processing unit 1201 is also used to perform a first execution action.
  • the processing unit 1201 may perform at least one of the following actions to execute the first execution action: execute an early warning prompt; keep the first protocol data unit (PDU) session associated with the disaster warning in an active state; keep the traffic of the first PDU session unchanged; execute a rate limiting policy; and deactivate the second PDU session unrelated to the disaster warning.
  • execute an early warning prompt to keep the first protocol data unit (PDU) session associated with the disaster warning in an active state
  • PDU protocol data unit
  • the processing unit 1201 may perform at least one of the following actions to execute the first execution action: execute an early warning prompt; keep the first protocol data unit (PDU) session associated with the disaster warning in an active state; keep the traffic of the first PDU session unchanged; execute a rate limiting policy; and deactivate the second PDU session unrelated to the disaster warning.
  • PDU protocol data unit
  • the processing unit 1201 is also used to perform a second execution action.
  • the second execution action performed by the processing unit 1201 may specifically include performing at least one of the following: not executing the warning prompt; deactivating the third PDU session of the terminal device; or executing a rate limiting policy.
  • the processing unit 1201 may specifically perform deactivation on a third PDU session in the PDU session of the terminal device whose bandwidth requirement is greater than or equal to a bandwidth threshold, and/or perform deactivation on a third PDU session in the PDU session of the terminal device whose network interaction frequency is greater than or equal to a frequency threshold.
  • the transceiver unit 1202 is also used to: receive a rate limiting policy sent by the network device, wherein the rate limiting policy is issued to the network device by the User Plane Function (UPF) or the Access Mobility Management (AMF), and the rate limiting policy of the AMF or UDF is provided by the SMF.
  • the rate limiting policy is issued to the network device by the User Plane Function (UPF) or the Access Mobility Management (AMF)
  • the rate limiting policy of the AMF or UDF is provided by the SMF.
  • UPF User Plane Function
  • AMF Access Mobility Management
  • the transceiver unit 1202 is also used to: receive the rate limiting policy issued by the User Plane Function (UPF) or the Access Mobility Management (AMF); and send the rate limiting policy to the network device.
  • UPF User Plane Function
  • AMF Access Mobility Management
  • the rate limiting strategy can refer to the maximum data transmission rate of PDU sessions that are unrelated to disaster early warning.
  • processing unit 1201 can also control the transmission rate of PDU sessions unrelated to disaster early warning to be less than the maximum data transmission rate.
  • the processing unit 1201 is further configured to: determine the early warning detection result of the terminal device according to the first indication information, the early warning detection result including whether the terminal device is located in a disaster area or not, the disaster area refers to the area in the network device coverage area where a disaster has occurred; and determine the first action of the terminal device according to the early warning detection result.
  • the processing unit 1201 is further configured to: determine a disaster area based on disaster location information; and determine a non-disaster area based on non-disaster location information.
  • the first action refers to a first execution action; when the terminal device is not located in a disaster area, the first action refers to a second execution action.
  • processing unit 1201 is further configured to: read first indication information from the system information block (SIB).
  • SIB system information block
  • the transceiver unit 1202 is also used to: receive second indication information sent by the network device, the second indication information being used to instruct the terminal device to perform a second action when the disaster in the area covered by the network device is resolved, the second action being used to restore the terminal device's normal use of communication resources.
  • the transceiver unit 1202 is also used to: send a second instruction information to the terminal device.
  • the second indication information includes disaster location information and/or non-disaster location information, and the disaster location information and/or non-disaster location information are associated with a third execution action, wherein the second action is the third execution action.
  • processing unit 1201 is also used to perform a third execution action.
  • the third execution action performed by the processing unit 1201 may refer to performing at least one of the following: canceling the warning prompt; reactivating the deactivated PDU session; or canceling the rate limiting policy.
  • processing unit 1201 is further configured to: read second indication information from the system information block SIB.
  • module division in the embodiments of this application is illustrative and only represents a logical functional division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of this application can be integrated into a processor, exist as separate physical entities, or have two or more modules integrated into one module.
  • the integrated modules described above can be implemented in hardware or as software functional modules.
  • the communication device 1200 may correspond to the terminal device 1020 or satellite 1010 in the satellite communication system shown in Figure 2.
  • the processing unit 1201 in the communication device 1200 may correspond to the processor in the terminal device 1020 or network device 1010, and can call instructions stored in the memory through the processor in the terminal device 1020 or satellite 1010 to implement the aforementioned functions, such as network encoding and acquiring raw packets;
  • the transceiver unit 1202 may correspond to the interface in the terminal device 1020 or satellite 1010, and can respond to the processor's instructions to implement the aforementioned functions of receiving and/or sending data.
  • the transceiver unit 1202 in the communication device 1200 can be implemented by a transceiver or a communication interface, for example, corresponding to the transceiver 2020 in the terminal device 2000 shown in FIG. 13 and the transceiver 3100 in the network device 3000 shown in FIG. 14.
  • the processing unit 1201 in the communication device 1200 can be implemented by at least one processor, for example, corresponding to the processor 2010 in the terminal device 2000 shown in FIG. 13 and the processor 3202 in the network device 3000 shown in FIG. 14.
  • Figure 13 is a schematic diagram of the structure of a terminal device 2000 provided in an embodiment of this application.
  • the terminal device 2000 can be applied to the system shown in Figure 2 to perform the functions of the terminal device in the above method embodiment.
  • the terminal device 2000 includes a processor 2010 and a transceiver 2020.
  • the terminal device 2000 also includes a memory 2030.
  • the processor 2010, transceiver 2020, and memory 2030 can communicate with each other through internal connection channels to transmit control and/or data signals.
  • the memory 2030 is used to store computer programs, and the processor 2010 is used to call and run the computer programs from the memory 2030 to control the transceiver 2020 to transmit and receive signals.
  • the terminal device 2000 may also include an antenna 2040 for transmitting uplink data or uplink control signaling output by the transceiver 2020 via wireless signals.
  • the processor 2010 and memory 2030 can be combined into a single processing device.
  • the processor 2010 executes the program code stored in the memory 2030 to achieve the aforementioned functions.
  • the memory 2030 can be integrated into the processor 2010 or independent of the processor 2010.
  • the processor 2010 can correspond to the processing unit 1201 in Figure 12.
  • the transceiver 2020 described above can correspond to the transceiver unit 1202 in Figure 12.
  • the transceiver 2020 may include a receiver (or receiver circuit) and a transmitter (or transmitter circuit).
  • the receiver is used to receive signals
  • the transmitter is used to transmit signals.
  • terminal device 2000 shown in Figure 13 can implement the various processes involving the terminal device in the method embodiments shown in Figures 3 to 11.
  • the operation and/or function of each module in the terminal device 2000 are respectively for implementing the corresponding processes in the above method embodiments.
  • the processor 2010 described above can be used to perform the actions implemented internally by the terminal device as described in the preceding method embodiments, while the transceiver 2020 can be used to perform the actions described in the preceding method embodiments of sending data to or receiving data from the network device by the terminal device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.
  • the terminal device 2000 may also include a power supply 2050 for providing power to various devices or circuits in the terminal device.
  • the terminal device 2000 may also include one or more of the following: an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, and a sensor 2100.
  • the audio circuit may also include a speaker 2082, a microphone 2084, etc.
  • FIG 14 is a schematic diagram of the network device provided in an embodiment of this application, such as a schematic diagram of a base station/CU.
  • the base station 3000 can be applied to the system shown in Figure 1 to perform the functions of the network device in the above method embodiment.
  • the base station 3000 may include one or more radio frequency units, such as a remote radio unit (RRU) 3100 and one or more baseband units (BBU) (also called distributed units (DU)) 3200.
  • RRU 3100 can be called a transceiver unit, corresponding to the transceiver unit 1202 in Figure 12.
  • the transceiver unit 3100 may also be called a transceiver, transceiver circuit, or transceiver, etc., and may include at least one antenna 3101 and a radio frequency unit 3102.
  • the transceiver unit 3100 may include a receiving unit and a transmitting unit, where the receiving unit may correspond to a receiver (or receiver circuit), and the transmitting unit may correspond to a transmitter (or transmitter circuit).
  • the RRU 3100 section is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals to baseband signals, such as sending indication information to terminal equipment.
  • the BBU 3200 section is mainly used for baseband processing and base station control.
  • the RRU3100 and BBU 3200 can be physically installed together or physically separated, i.e., a distributed base station.
  • BBU 3200 is the control center of the base station, also known as the processing unit, and can correspond to processing unit 1201 in Figure 12. It is mainly used to perform baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing unit
  • the BBU can be used to control the base station to execute the network device operation procedures described in the above method embodiments, such as generating the aforementioned instruction information.
  • the BBU 3200 can consist of one or more boards. These boards can collectively support a single access standard wireless access network (such as an LTE network), or they can each support different access standards wireless access networks (such as LTE, 5G, or other networks).
  • the BBU 3200 also includes a memory 3201 and a processor 3202.
  • the memory 3201 stores necessary instructions and data.
  • the processor 3202 controls the base station to perform necessary actions, such as controlling the base station to execute the network device operation procedures described in the above method embodiments.
  • the memory 3201 and processor 3202 can serve one or more boards. That is, each board can have its own memory and processor, or multiple boards can share the same memory and processor. Furthermore, each board can also have necessary circuitry.
  • the base station 3000 shown in Figure 14 can implement the various processes involving the network devices in the method embodiments shown in Figures 3 to 11.
  • the operation and/or function of each module in the base station 3000 are respectively for implementing the corresponding processes in the above method embodiments.
  • the BBU 3200 described above can be used to perform the actions implemented internally by the network device as described in the preceding method embodiments, while the RRU 3100 can be used to perform the actions described in the preceding method embodiments whereby the network device sends data to or receives data from the terminal device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.
  • the base station 3000 shown in Figure 14 is only one possible architecture for network devices and should not be construed as limiting this application in any way.
  • the method provided in this application can be applied to network devices with other architectures, such as network devices including CU, DU, and active antenna units (AAU). This application does not limit the specific architecture of the network device.
  • This application also provides a processing apparatus, including a processor and an interface; the processor is used to execute the method in any of the above method embodiments.
  • the aforementioned processing device can be one or more chips.
  • the processing device can be a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system-on-chip (SoC), a central processing unit (CPU), a network processing unit (NP), a digital signal processing circuit (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips.
  • FPGA field-programmable gate array
  • ASIC application-specific integrated circuit
  • SoC system-on-chip
  • CPU central processing unit
  • NP network processing unit
  • DSP digital signal processing circuit
  • MCU microcontroller unit
  • PLD programmable logic device
  • each step of the above method can be completed by integrated logic circuits in the processor's hardware or by instructions in software.
  • the steps of the method disclosed in the embodiments of this application can be directly implemented by a hardware processor, or by a combination of hardware and software modules in the processor.
  • the software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, detailed descriptions are omitted here.
  • the processor in the embodiments of this application can be an integrated circuit chip or a chip system with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by the integrated logic circuits in the processor's hardware or by instructions in software form.
  • the processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application.
  • the general-purpose processor can be a microprocessor or any conventional processor.
  • the steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art.
  • the storage medium is located in memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above methods.
  • the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory.
  • the volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous linked dynamic random access memory
  • DR RAM direct rambus RAM
  • this application also provides a computer program product, which includes: computer program code, which, when run on a computer, causes the computer to perform the method of any of the embodiments shown in FIG3 to FIG11.
  • this application also provides a computer-readable medium storing program code that, when run on a computer, causes the computer to perform the method of any of the embodiments shown in FIG3 to FIG11.
  • this application also provides a system, which includes one or more terminal devices and one or more network devices as described above.
  • the network devices and terminal devices in the method embodiments completely correspond to each other, with corresponding modules or units executing the corresponding steps.
  • the communication unit executes the receiving or sending steps in the method embodiments, while other steps besides sending and receiving can be executed by the processing unit (processor).
  • the functions of specific units can be found in the corresponding method embodiments.
  • a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and/or a computer.
  • applications running on computing devices and computing devices can both be components.
  • One or more components may reside in a process and/or an execution thread, and components may be located on a single computer and/or distributed among two or more computers.
  • these components can be executed from various computer-readable media on which various data structures are stored.
  • Components can communicate, for example, via local and/or remote processes based on signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals).
  • signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals).
  • the disclosed systems, apparatuses, and methods can be implemented in other ways.
  • the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods.
  • multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.
  • the units described as separate components may or may not be physically separate.
  • the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
  • the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
  • each functional unit can be implemented entirely or partially through software, hardware, firmware, or any combination thereof.
  • software When implemented using software, it can be implemented entirely or partially in the form of a computer program product.
  • a computer program product includes one or more computer instructions (programs). When the computer program instructions (programs) are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another.
  • computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media.
  • the available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).
  • a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application.
  • the aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

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Abstract

本申请实施例提供通信方法、设备、存储介质及产品，涉及卫星通信技术领域。该方法包括：网络设备向终端设备发送第一指示信息，终端设备可以根据第一指示信息确定所要执行的第一动作并执行，以对终端设备的流量实施流控策略。这样，可以在灾难预警系统中及时对通信资源的挤占作出响应，及时降低灾难预警系统中各终端设备占用的通信资源，有效提升了整个灾难预警系统的通信资源的利用率，提高灾难应对效率和效果。

Description

通信方法、设备、存储介质及产品
本申请要求于2024年05月15日提交中国专利局、申请号为202410609138.5、申请名称为“通信方法、设备、存储介质及产品”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法、设备、存储介质及产品。
背景技术
卫星通信系统可以在灾难场景下提供通信服务，以保障救援工作。卫星通信系统在灾难场景的一个应用示例如下：卫星(Satellite)基站接收预警请求，预警请求包括预警信息。之后，Satellite基站对其覆盖的多个小区内的UE下发预警信息。
但是，使用上述方法之后会如下问题：位于Satellite基站的覆盖区域内的全部UE均会预警并频繁使用卫星通信网络，造成通信资源浪费。
发明内容
本申请实施例提供一种通信方法、设备、存储介质及产品，应用于卫星通信技术领域。通过在灾难预警时，及时减少终端设备占用的通信资源，使得更多的通信资源被释放，用以执行救灾通信，减少灾难发生时的通信资源的挤占现象，确保及时进行预警提示，有效保障了用户的生命和财产安全。
第一方面，本申请实施例提出一种通信方法。该方法可以由终端设备执行，或者，也可以由配置于终端设备中的部件(例如芯片或者电路)执行。本申请对此不作限定。
例如，该方法包括：接收网络设备发送的第一指示信息，第一指示信息用于指示终端设备在网络设备所覆盖区域有灾难发生时的第一动作。执行第一动作，对终端设备的流量实施流控策略。
可选地，第一指示信息可以指示终端设备位于灾难区域或不位于灾难区域。在终端设备位于灾难区域的情况下，第一动作为第一执行动作。在终端设备不位于灾难区域的情况下，第一动作为第二执行动作。
网络设备可以向终端设备发送第一指示信息，该第一指示信息被用于确定终端设备所要执行的第一动作，该第一动作被执行后，可以对终端设备的流量实施流控策略，从而减小了终端设备占用的通信资源，使得更多的通信资源被释放，用以执行救灾通信，减少灾难发生时的通信资源的挤占现象，确保及时进行预警提示，有效保障了用户的生命和财产安全。
应理解，第一指示信息可以携带于第一系统信息块SIB中。也就是，终端设备可以从第一系统信息块SIB中。
可选地，通信资源可以是指PDU会话。可以通过对PDU会话进行限流或去激活等方式，以降低终端设备占用的通信资源。
在一种可能的实现方式中，第一指示信息包括：灾难位置信息和/或非灾难位置信息。灾难位置信息可以关联第一执行动作，非灾难位置信息可以关联第二执行动作。第一动作为第一执行动作或第二执行动作。
可选地，灾难位置信息可以用于指示灾难区域。非灾难位置信息可以用于指示非灾难区域。
进一步地，终端设备还用于：根据第一指示信息，确定终端设备的预警检测结果，预警检测结果包括终端设备位于灾难区域或不位于灾难区域，灾难区域是指网络设备覆盖的区域中发生灾难的区域；根据预警检测结果，确定终端设备的第一动作。
进一步地，在终端设备位于灾难区域的情况下，第一动作是指第一执行动作；在终端设备不位于灾难区域的情况下，第一动作是指第二执行动作。
为了以更简洁、更明确的方式指明灾难区域，作为一种可选方式，灾难位置信息可以包括以下至少一项：第一跟踪区域码、第一跟踪区域列表、第一跟踪区域标识、第一区域配置。非灾难位置信息为以下至少一项：第二跟踪区域码、第二跟踪区域列表、第二跟踪区域标识、第二区域配置。
而使用跟踪区域码、跟踪区域列表、跟踪区域标识和/或区域配置等信息来定义位置信息，使得灾难位置信息和/或非灾难位置信息的表述方式更为灵活，可以适应更多的应用场景，丰富了第一指示信息的信息内容，可以有效提升系统表达的稳定性和可靠性。
如上文，第一动作可以为第一执行动作或第二执行动作。为了使得终端设备明确所要执行的具体动作。本申请实施例中，第一执行动作可以为以下至少一项：执行预警提示；维持与灾难预警关联的第一协议数据单元PDU会话处于激活状态；维持第一PDU会话流量不变；为终端设备执行限流策略；对与灾难预警无关的第二PDU会话执行去激活。
应理解，终端设备执行第一执行动作具体可以包括以下至少一项：
终端设备执行预警提示。
终端设备维持第一协议数据单元PDU会话处于激活状态。
终端设备维持第一PDU会话流量不变。
终端设备执行限流策略。
终端设备的第二PDU会话执行去激活。
第二执行动作可以为以下至少一种：
不执行预警提示；对终端设备的第三PDU会话执行去激活；为终端设备执行限流策略。
终端设备执行第二执行动作具体可以包括以下至少一项：
终端设备不执行预警提示。
终端设备对第三PDU会话执行去激活。
终端设备执行限流策略。
如上文，为了使得终端设备确定所要执行的第一执行动作或第二执行动作。第一指示信息中可以携带动作信息(action)，动作信息可以用于确定第一执行动作和第二执行动作。
具体地，第一指示信息可以携带第一动作信息和第二动作信息。第一动作信息用于确定第一执行动作，第二动作信息用于确定第二执行动作。
进一步地，本申请的通信方法还包括：根据第一动作信息，确定第一执行动作。根据第二动作信息，确定第二执行动作。
在一种可能的实现方式中，第三PDU会话可以是指与终端设备的PDU会话中的非必要会话。例如可以是指占用通信资源较高的会话。在一种可能的设计中，还包括以下至少一项：
第三PDU会话的带宽需求大于或等于带宽阈值。
第三PDU会话的网络交互频率大于或等于频率阈值。
在一种可能的实现方式中，第一执行动作或第二执行动作中可以包括执行限流策略。本申请提供的通信方法还可以包括：
接收网络设备发送的限流策略，其中，限流策略由用户平面功能UDF或者接入移动管理AMF下发到网络设备的，AMF或UDF的限流策略由SMF提供。
应理解，限流策略可以是指对与灾难预警无关的PDU会话的流量进行限制的方式。具体地，限流策略可以包括与灾难预警无关的PDU会话的数据传输最大比特率。
在一种可能的实现方式中，还包括：
接收网络设备发送的第二指示信息，第二指示信息用于指示终端设备在网络设备所覆盖区域灾难解除时所执行的第二动作，第二动作用于恢复终端设备对通信资源的正常使用。
可选地，第二指示信息包括灾难位置信息和/或非灾难位置信息，灾难位置信息和/或非灾难位置信息关联第三执行动作，第二动作为第三执行动作。
进一步地，第三执行动作为以下至少一项：
执行取消预警提示；重新激活已被去激活的PDU会话；取消限流策略。
在一种可能的实现方式中，第二指示信息承载于第二SIB中。终端设备还用于：从第二SIB中读取第二指示信息。
在一种可能的实现方式中，网络设备为卫星网络设备。
第二方面，本申请实施例提供一种通信方法。该方法可以由网络设备执行，或者，也可以由配置于网络设备中的部件(例如芯片或者电路)执行。本申请对此不作限定。
例如，该方法包括：向终端设备发送第一指示信息，第一指示信息用于指示终端设备在网络设备所覆盖区域有灾难发生时要执行的第一动作，第一动作由终端设备执行后对终端设备的流量实施流控策略。
在一种可能的实现方式中，还包括：
接收用户平面功能UPF或者接入移动管理AMF下发的限流策略；
将限流策略发送至网络设备。
在一种可能的实现方式中，还包括：
向终端设备发送第二指示信息，第二指示信息用于指示终端设备在网络设备所覆盖区域灾难解除时所执行的第二动作，第二动作用于恢复终端设备对通信资源的正常使用。
第三方面，提供了一种通信装置，包括用于执行第一方面以及第一方面中任一种可能实现方式中的方法的各个模块或单元。
第四方面，提供了一种通信装置，包括用于执行第二方面以及第二方面中任一种可能实现方式中的方法的各个模块或单元。
第五方面，提供了一种通信装置，包括处理器。该处理器与存储器耦合，可用于执行存储器中的指令，以实现上述第一方面以及第一方面中任一种可能实现方式中的方法。可选地，该装置还包括存储器。可选地，该装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信装置为终端设备。当该候选小区配置信息的处理装置为终端设备时，通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为配置于终端设备中的芯片。当该候选小区配置信息的处理装置为配置于终端设备中的芯片时，通信接口可以是输入/输出接口。
可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
第六方面，提供了一种通信装置，包括处理器。该处理器与存储器耦合，可用于执行存储器中的指令，以实现上述第二方面以及第二方面中任一种可能实现方式中的方法。可选地，该装置还包括存储器。可选地，该装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信装置为网络设备。当该通信装置为网络设备时，通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为配置于网络设备中的芯片。当该通信装置为配置于网络设备中的芯片时，通信接口可以是输入/输出接口。
可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
第七方面，提供了一种处理器，包括：输入电路、输出电路和处理电路。处理电路用于通过输入电路接收信号，并通过输出电路发射信号，使得处理器执行第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中的方法。
在具体实现过程中，上述处理器可以为一个或多个芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第八方面，提供了一种处理装置，包括处理器和存储器。该处理器用于读取存储器中存储的指令，并可通过接收器接收信号，通过发射器发射信号，以执第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中的方法。
可选地，处理器为一个或多个，存储器为一个或多个。
可选地，存储器可以与处理器集成在一起，或者存储器与处理器分离设置。
在具体实现过程中，存储器可以为非瞬时性(non-transitory)存储器，例如只读存储器(read only memory，ROM)，其可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
应理解，相关的数据交互过程例如发送指示信息可以为从处理器输出指示信息的过程，接收能力信息可以为处理器接收输入能力信息的过程。具体地，处理器输出的数据可以输出给发射器，处理器接收的输入数据可以来自接收器。其中，发射器和接收器可以统称为收发器。
上述第八方面中的处理装置可以是一个或多个芯片。该处理装置中的处理器可以通过硬件来实现也可以通过软件来实现。当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现，该存储器可以集成在处理器中，可以位于该处理器之外，独立存在。
第九方面，本申请实施例提供一种终端设备，包括处理器、存储器及收发器，收发器用于收发数据，存储器用于存储代码指令，处理器用于运行代码指令，处理器在执行存储器存储的代码指令时用于指示终端设备执行上述第一方面以及第一方面中任一种可能实现方式中描述的方法。
第十方面，本申请实施例提供一种网络设备，包括处理器、存储器及收发器，收发器用于收发数据，存储器用于存储代码指令，处理器用于运行代码指令，处理器在执行存储器存储的代码指令时用于指示终端设备执行上述第二方面以及第二方面中任一种可能实现方式描述的方法。
第十一方面，本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序或指令，当计算机程序或指令在计算机上运行时，使得计算机执行第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中描述的方法。
第十二方面，本申请提供一种芯片或者芯片系统，该芯片或者芯片系统包括至少一个处理器和通信接口，通信接口和至少一个处理器通过线路互联，至少一个处理器用于运行计算机程序或指令，以执行第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中的方法。其中，芯片中的通信接口可以为输入/输出接口、管脚或电路等。
第十三方面，本申请实施例提供一种包括计算机程序的计算机程序产品，当计算机程序在计算机上运行时，使得计算机执行第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中的方法。
在一种可能的实现中，本申请中上述描述的芯片或者芯片系统还包括至少一个存储器，该至少一个存储器中存储有指令。该存储器可以为芯片内部的存储单元，例如，寄存器、缓存等，也可以是该芯片的存储单元(例如，只读存储器、随机存取存储器等)。
应当理解的是，本申请的第三方面、第五方面、第九方面与本申请的第一方面的技术方案相对应，本申请的第四方面、第六方面、第十方面与本申请的第二方面的技术方案相对应，本申请的第七方面、第八方面、第十一方面至第十三方面与本申请的第一方面或第二方面的技术方案相对应，各方面及对应的可行实施方式所取得的有益效果相似，不再赘述。
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图1为本申请实施例提供的一种公共告警系统的信令图；
图2为本申请实施例提供的一种卫星通信系统的示意图；
图3为本申请实施例提供的一种通信方法的一个信令图；
图4为本申请实施例提供的一种通信方法的又一个信令图；
图5为本申请实施例提供的一种通信方法的又一个信令图；
图6为本申请实施例提供的一种通信方法的示例图；
图7为本申请实施例提供的一种限流策略的下发方法的信令图；
图8为本申请实施例提供的一种通信方法的又一个信令图；
图9为本申请实施例提供的一种通信方法的又一个信令图；
图10为本申请实施例提供的一种通信方法的又一个信令图；
图11为本申请实施例提供的一种通信方法的又一个信令图；
图12为本申请实施例提供的一种通信装置的示意性框图；
图13为本申请实施例提供的终端设备的一种可能的结构示意图；
图14为本申请实施例提供的网络设备的一种可能的结构示意图，例如可以为卫星网络设备的结构示意图。
具体实施方式
为了便于清楚描述本申请实施例的技术方案，以下，对本申请实施例中所涉及的部分术语和技术进行简单介绍：
1、非地面网络通信(Non-Terrestrial Network Communication，TNT)
TNT包括卫星网络、高空平台和无人机等节点，是一种使用卫星技术实现的非周期性通信系统，可以利用运行在地球轨道的通信卫星作为中继器，将用户的通信数据通过卫星传输，实现全球范围的无缝连接。TNT已被广泛应用于海上通信、定位导航、抗险救灾、科学实验和对地观测等多个领域。地面移动通信技术网络和卫星网络等相互融合，取长补短，共同构成全球无缝覆盖的海、陆、空、天、地一体化综合通信网，满足用户的多种业务需求。
地面基站在地质灾害等极端情况下，容易受到损害，难以保障紧急救援过程中的通信需求。而卫星通信系统可以不受地质灾害的影响，不间断地提供通信服务。卫星通信在灾难场景下可以提供多种类型的通信方式，包括语音、数据、图像等，满足不同场景下的紧急信息广播。
2、公共告警系统(Public Warning System，PWS)
PWS是一种小区广播技术，可以进行紧急预警信息或告警信息的发布。具体可以通过核心网通知基站，将告警信息转换为系统广播消息下发给用户，及时向公众发布告警通知。
3、无线接入网(Radio Access Network，RAN)
RAN是通信系统的一种关键元素，可以通过无线电将终端设备连接到网络的其它部分。RAN可以充当用户设备(User Equipment，UE)和核心网络之间的传输信息的渠道，该网络组建可以提供无线通信所需要的必要基础设施。
4、小区广播中心(Communtity Broadband Radio Centre，CBCF)
CBCF是指利用通信网的CBCCH(Cell Broadcast Control Channel，小区广播控制信道)向指定区域内所有用户广播发送短信的业务。CBCF可以配置有基站的相关信息，将预警消息中的广播区域范围映射到有效的无线小区，之后，将预警消息下发到无线网络RAN的上级设备接入和移动管理功能网元(Access and Mobility Management Function，AFM)并从AMF接收广播结果反馈；决定广播的开始时间、结束时间和重复间隔。
5、下一代无线接入网(Next Generation-Radio Access Network，NG-RAN)
NG-RAN是5G网络中的无线接入部分，包括gNodeB或eNodeB等组件。gNodeB为5G网络的节点或基站。eNodeB为长期演进(Long Term Evolution，LTE)系统的节点或基站。
6、接入和移动管理功能(Access and Mobility Management Function，AFM)
AMF是移动通信网络中的一个重要组成部分，它主要负责处理与用户设备UE的接入和移动性相关的功能。AMF可以根据CBCF指定的无线小区范围(列表)转发小区广播消息到预警区域内的RAN基站/小区。向CBCF报告广播消息执行的成功(或者失败)，报告成功执行的广播区域列表或者取消区域列表。向CBCF报告NG-RAN(Next Generation-Radio Access Network，下一代无线接入网)发出的重启指示和失败指示。
7、公众报警系统-互通功能(Public Warning System-Interworking Function，PWS-IWF)
PWS-IWF是移动通信网络中用于支持公共警报系统(PWS)的一个功能实体。PWS-IWF主要负责将AMF和CBCF之间的消息传递。AMF和CBCF之间也可能不存在PWS-IWF，此时AMF和CBCF之间直接进行消息传递。
8、小区广播实体(Cell Broadcast Entity，CBE)
CBE负责新建小区广播消息或接收预警信息发布平台推送的小区广播信息，可以设定广播消息的内容、预警级别、广播区域、重发次数、间隔、编码方式等参数，还可以负责广播消息的存储和分类管理、查询和统计等处理。
9、会话管理功能(Session Management Function，SMF)
SMF存在于5G核心网中，可以负责处理用户的业务，用以保证用户能够顺利地进行数据和通信传输。SMF可以具备会话管理、IP(Internet Protocol，互联网协议)地址的分配和管理、流量控制功能、计费和收费功能等功能。
10、其他术语
在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。例如，第一芯片和第二芯片仅仅是为了区分不同的芯片，并不对其先后顺序进行限定。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
需要说明的是，本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本申请实施例中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a--c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
11、电子设备
本申请实施例的电子设备可以包括具有预警功能的手持式设备、车载设备等。例如，一些电子设备为：手机(mobile phone)、平板电脑、掌上电脑、笔记本电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
作为示例而非限定，在本申请实施例中，该电子设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，在本申请实施例中，电子设备还可以是物联网(internet of things，IoT)系统中的终端设备，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。
本申请实施例中的电子设备也可以称为：终端设备、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
在本申请实施例中，电子设备或各个网络设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。
下面将结合附图对本申请的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、未来的第五代(5th Generation，5G)通信系统或新无线接入技术(new radio Access Technology，NR)，车到其它设备(vehicle-to-X V2X)，其中V2X可以包括车到互联网(vehicle to network，V2N)、车到车(vehicle to-vehicle，V2V)、车到基础设施(vehicle to infrastructure，V2I)、车到行人(vehicle to pedestrian，V2P)等、车间通信长期演进技术(Long Term Evolution-Vehicle，LTE-V)、车联网、机器类通信(machine type communication，MTC)、物联网(Internet of Things，IoT)、机器间通信长期演进技术(Long Term Evolution-Machine，LTE-M)，机器到机器(Machine to Machine，M2M)等。
图1是本申请实施例提供的一种公共告警系统的信令图。如图1所示，公共告警系统100可以包括：小区广播实体CBE、小区广播中心CBCF/公众报警系统-互通功能PWS-IWF、接入和移动管理功能AMF、下一代无线接入网节点NG-RAN node以及用户终端UE等设备。
步骤101中，CBE可以向CBCF或PWS-IWF发送应急广播消息，该应急广播消息可以包括：内容、预警级别、广播区域、重发次数、发送间隔以及编码方案等参数。
步骤102中，CBCF或PWS-IWF可以确定接收预警消息的NG-RAN，并向AMF发送包含该NG-RAN信息的重写预警请求(WriteReplace Warning Request)消息。NG-RAN信息可以是指NG-RAN的标识、网络地址和/或物理地址等信息。
步骤103中，AMF接收重写预警请求消息，并向CBCF或PWS-IWF发送包含NG-RAN信息的重写确认消息，该重写确认消息是对重新预警请求消息作出响应。
步骤104中，CBCF或PWS-IWF接收重新确认消息之后，向CBE发送应急广播响应消息，该应急广播响应消息是对应急广播消息作出的响应。
步骤105中，AMF还可以向确定的接收预警消息的NG-RAN node发送重写预警请求(WriteReplace Warning Request)消息。
步骤106中，NG-RAN可以响应重写预警请求(WriteReplace Warning Request)消息，向UE广播预警消息。相应地，UE接收到预警消息之后，可以进行预警提示。
应理解，预警消息是发送至UE以进行灾难预警、极端天气预警的一种消息，可以称为告警消息、预警信息、告警信息、警示信息、提示信息等任意一种。
步骤107中，NG-RAN node可以向AMF发送反馈消息，该反馈消息可以是对重写预警请求(WriteReplace Warning Request)消息的响应。反馈消息中还可以反馈预警消息的广播情况。
步骤108中，AMF可以根据NG-RAN node发送的反馈消息，判断预警消息是否发送成功，并生成相应的跟踪记录。
可选地，AMF接收到反馈消息之后，还可以向CBCF或PWS-IWF发送重写预警指示反馈消息，该重新预警指示反馈消息可以用于提示CBCF或PWS-IWF预警消息的重写和发送已完成。
由上文描述可知，5G网络中的公共告警系统，一般是通过NG-RAN node向UE广播预警信息，及时对用户进行预警提示。其中，NG-RAN node可以为蜂窝基站。此外，NG-RAN node还支持基于NTN的卫星通信，也即，NG-RAN node可以为卫星(Satellite)网络设备，从而为偏远地区或接入链路不可靠的地区提供5G业务使能，如扩展流动宽频、超可靠的服务通信等。
由上文描述可知，蜂窝基站接收到重写预警请求消息之后，可以向其覆盖区域下所有小区中的终端设备。相应地，卫星基站也可以向其覆盖区域下所有小区均广播预警消息。
如图2所示的一种卫星通信系统的示意图。该卫星通信系统1000可以包括卫星1010和至少一个终端设备1020。作为一种可选方式，卫星通信系统中的卫星可以包括多个，卫星和卫星之间可以通过星间链路进行通信。为了便于理解，本申请仅示出了一个卫星的情况。
其中，卫星1010的覆盖区域1030中可以包括多个小区，例如图2所示的小区0-19。每个小区中的UE均可以接收预警消息。当然图2示出的小区数量和划分方式仅是示例性的，本申请实施例中对卫星或者卫星网络设备的小区数量和小区范围并不过多限定。此外，图2中示出的UE1020为小区9中的3个UE，其它小区，如小区0-8,10-19中的UE并未示出。当然，小区9所示的3个UE也是示例性的，本申请实施例中对每个小区内的UE数量并不过多限定。
示例性地，卫星通信系统1000中的卫星可以为超密低地球轨道(low earth orbit，LEO)卫星、非静止地球轨道(non-geostationary earth orbit，NGEO)卫星、中地球轨道(middle earth orbit，MEO)卫星或者地球同步轨道(geostationary earth orbit，GEO)卫星。
此外，卫星通信系统1000中的卫星可以通过多波束向终端设备提供通信服务、导航服务和定位服务等。卫星通信系统1000中的卫星采用多个波束覆盖服务小区，不同的波束可通过时分、频分和空分中的一种或多种进行通信。卫星通信系统1000中的卫星通过广播通信信号和导航信号等与终端设备进行无线通信，卫星可与地面站设备进行无线通信。本申请实施例中提及的卫星，也可以称为卫星网络设备，具体可以为卫星基站，也可以包括用于对信息进行中继的轨道接收机或中继器，或者为搭载在卫星上的网络设备。
但是，若NG-RAN node无差别的向所有小区均广播预警消息，而覆盖区域的小区内的全部UE均会预警，此时会频繁使用卫星通信网络，造成通信资源挤占现象。特别是在预警场景下，通信资源若被大量浪费，可能会导致预警不够及时，使用户的生命和财产安全受到威胁。特别是在卫星通信系统中，卫星网络设备的覆盖区域较为广泛，其覆盖区域远大于地面基站的覆盖范围，因此，卫星网络设备覆盖范围内的终端设备数量远大于地面基站的覆盖范围内的终端设备数量，卫星网络设备的挤占通信资源的现象更为突出。
为了解决通信资源的挤占现象，在网络设备的覆盖区域有灾难发生时，控制终端设备执行第一动作，该第一动作的执行可以降低设备占用的通信资源，使得更多的通信资源被释放，用以执行救灾通信，减少灾难发生时的通信资源的挤占现象，确保及时进行预警提示，有效保障了用户的生命和财产安全。
图3为本申请实施例提供的一种通信方法的信令图。如图3所示，该通信方法300包括以下步骤：
步骤301、终端设备接收网络设备发送的第一指示信息，该第一指示信息用于指示终端设备在网络设备所覆盖区域有灾难发生时执行的第一动作。
可选地，第一指示信息可以用于确定终端设备的预警检测结果。
其中，预警检测结果可以包括终端设备位于灾难区域或不位于灾难区域。
进一步地，第一指示信息可以指示终端设备位于灾难区域或不位于灾难区域。在终端设备位于灾难区域的情况下，第一动作为第一执行动作。在终端设备不位于灾难区域的情况下，第一动作为第二执行动作。
应理解，网络设备的覆盖区域可以是指网络设备能够提供通信服务的区域，或者是指网络设备的广播信号能够传输的范围所形成的区域。
可选地，第一指示信息承载于第一系统信息块SIB中，系统信息块例如可以为SIB7。
示例性地，第一指示信息可以承载于第一SIB7中，第一SIB7中的某个字段可以写入第一指示信息。
可选地，网络设备还用于发送第一SIB，终端设备还用于接收网络设备发送的第一SIB，并从第一SIB中读取第一指示信息。
第一指示信息可以为第一SIB的一个字段，该字段可以为第一SIB中原有的字段，也可以是为了承载第一指示信息自定义的字段。字段长度或尺寸可以根据需求设置，本实施例中对此并不过多限定。
步骤302、终端设备执行第一动作，以对终端设备的流量实施流控策略。
可选地，通信资源可以包括以下资源的至少一种：无线资源以及核心网资源。
其中，无线资源可以包括网络设备分配给终端设备的频率或带宽、会话、码片等资源。核心网资源可以包括网络设备分配给终端设备的IP地址、承载信道等资源。
应理解，本申请中通信资源可以是指PDU会话。可以通过对PDU会话进行限流或去激活等方式，以降低终端设备占用的通信资源。
作为一种可选方式，流控策略具体可以是指对终端设备执行流量控制策略。具体地，可以是指对PDU会话执行的限流操作或去激活等处理。
示例性地，终端设备的流量可以是指通信设备原激活的PDU会话或处于激活状态的PDU会话的数据传输速率。也就是，对终端设备的流量实施流控策略可以是指：对PDU会话进行去激活，和/或，对PDU会话进行限流。
可选地，网络设备可以向终端设备发送第一指示信息之前还包括：步骤303、网络设备广播预警消息。相应地，终端设备可以接收网络设备广播的预警消息。
网络设备例如可以为图1所示的NG-RAN或图2所示的卫星网络设备。
本申请实施例中，网络设备对覆盖区域内的终端设备进行动作指示。终端设备即可以获取被指示的第一动作，该第一动作被执行后，可以对终端设备的流量实施流控策略，从而减小了终端设备占用的通信资源，使得更多的通信资源被释放，用以执行救灾通信，减少灾难发生时的通信资源的挤占现象，确保及时进行预警提示，有效保障了用户的生命和财产安全。
作为一种可选方式，第一指示信息包括：灾难位置信息和/或非灾难位置信息。灾难位置信息可以关联第一执行动作，非灾难位置信息可以关联第二执行动作。第一动作为第一执行动作或第二执行动作。
可选地，灾难位置信息可以用于指示灾难区域。非灾难位置信息可以用于指示非灾难区域。
其中，灾难位置信息关联第一执行动作可以是指终端设备位于灾难位置信息指示的灾难区域时，将第一动作确定为第一执行动作。非灾难位置信息关联第二执行动作可以是指终端设备位于非灾难位置信息指示的非灾难区域时，将第一动作确定为第二执行动作。
应理解，网络设备向终端设备发送第一指示信息之前，还可以先确定灾难位置信息和/或非灾难位置信息。并根据灾难位置信息和/或非灾难位置信息，生成第一指示信息。
示例性地，网络设备可以接收CBCF或PWS-IWF发送的重写预警请求消息。重新预警请求消息中可以包括灾难位置信息和/或非灾难位置信息。
示例性地，网络设备还可以接收气象卫星发送的位置消息，该位置消息包括灾难位置信息和/或非灾难位置信息。也就是，网络设备还可以和气象卫星建立通信链路，进而气象卫星可以向终端设备发送位置消息。
示例性地，网络设备还可以接收PWS中小区广播实体CBE发送的位置消息，该位置消息可以包括灾难位置信息和/或非灾难位置信息。也就是，CBE可以直接向网络设备发送位置消息。
应理解，位置消息可以承载于RRC、MAC-CE或专有信令中，本实施例中对位置消息的消息类型并不过多限定。此外，位置消息是一种用于描述承载有灾难位置信息和/或非灾难位置信息的消息，位置消息仅是消息的一个名词，在具体应用中，位置消息还可以称为第一消息、第一位置消息、位置信息、目标位置信息、目标位置消息等，本实施例中对此并不过多限定。
在本申请的通信方法中，第一指示信息可以携带灾难位置信息和/或非灾难位置信息，通过两种位置信息可以指示终端设备需要执行的第一动作。也就是，灾难位置信息关联第一执行动作，非灾难位置信息关联第二执行动作。通过为不同类型的位置关联不同的动作，明确了不同位置的终端设备所需要执行的个性化动作，实现为不同区域的终端设备实施不同的流量控制策略。使得在灾难发生时，及时完成灾难预警，提高灾难预警效率和有效性。
以网络设备为卫星网络设备为例，对本申请的技术方案进行详细说明，图4为本公开实施例提供的一种通信方法的信令图。该通信方法400可以包括下列步骤：
步骤401中，CBE可以向CBCF或PWS-IWF发送应急广播消息，该应急广播消息可以包括：内容、预警级别、广播区域、重发次数、发送间隔以及编码方案等参数。
步骤402中，CBCF或PWS-IWF可以确定接收预警消息的NG-RAN，并向AMF发送包含该NG-RAN信息的重写预警请求(WriteReplace Warning Request)消息。NG-RAN信息可以是指NG-RAN的标识、网络地址和/或物理地址等信息。
步骤403中，AMF接收重写预警请求消息，并向CBCF或PWS-IWF发送包含NG-RAN信息的重写确认消息，该重写确认消息是对重新预警请求消息作出响应。
步骤404中，CBCF或PWS-IWF接收重新确认消息之后，向CBE发送应急广播响应消息，该应急广播响应消息是对应急广播消息作出的响应。
步骤405中，AMF还可以向确定的接收预警消息的网络设备发送重写预警请求(WriteReplace Warning Request)消息。
步骤406中，卫星网络设备可以响应重写预警请求(WriteReplace Warning Request)消息，向UE广播预警消息。相应地，UE可以接收预警消息。
应理解，预警消息是发送至UE以进行灾难预警、极端天气预警的一种消息，可以称为告警消息、预警信息、告警信息、警示信息、提示信息等任意一种。
步骤407中，卫星网络设备还可以向UE发送第一指示信息，该第一指示信息用于指示终端设备在卫星网络设备所覆盖区域有灾难发生时执行的第一动作。
步骤408中，终端设备可以执行第一动作，以对终端设备的流量实施流控策略。
步骤409中，网络设备还可以向AMF发送反馈消息，该反馈消息可以是对重写预警请求(WriteReplace Warning Request)消息的响应。反馈消息中还可以反馈预警消息的广播情况。
步骤410中，AMF可以根据网络设备发送的反馈消息，判断预警消息是否发送成功，并生成相应的跟踪记录。
在本申请实施例的通信方法中，灾难预警系统中各节点之间的信息交互过程中，卫星网络设备向UE广播在家预警消息之外，还可以向UE发送第一指示信息。而第一指示信息可以用于指示终端设备在卫星网络设备所覆盖区域有灾难发生时执行的第一动作。而第一动作的执行可以有效降低终端设备占用的通信资源。通过在预警系统中及时对通信资源的挤占作出响应，及时降低灾难预警系统中各终端设备占用的通信资源，有效提升了整个灾难预警系统的通信资源的利用率，提高灾难应对效率和效果。
为了便于理解，图5示出了本申请实施例提供的一种通信方法的流程图，该通信方法500可以包括：
步骤501、终端设备接收第一指示信息。
步骤502、终端设备根据第一指示信息，确定终端设备的预警检测结果。预警检测结果包括终端设备位于灾难区域或不位于灾难区域。灾难区域是指网络设备覆盖的区域中发生灾难的区域。
参考上文，第一指示信息可以包括灾难位置信息和/或非灾难位置信息。可以利用灾难位置信息和/或非灾难位置信息对终端设备进行预警检测，以获得终端设备的预警检测结果。
进一步地，在上述任一实施例的基础上，根据第一指示信息，确定终端设备的预警检测结果，可以包括：
根据第一指示信息中的灾难位置信息和/或非灾难位置信息，确定终端设备的预警检测结果。
进一步地，确定终端设备的第一位置信息之后，本申请实施例的通信方法还包括：
若灾难位置信息包括第一位置信息，则确定位于灾难区域为终端设备的预警检测结果；
或者，若灾难位置信息不包括第一位置信息，则确定不位于灾难区域为终端设备的预警检测结果；
或者，若非灾难位置信息包括第一位置信息，则确定不位于灾难区域为终端设备的预警检测结果；
或者，若非灾难位置信息不包括第一位置信息，则确定位于灾难区域为终端设备的预警检测结果。
当然，终端设备不位于灾难区域也可以描述为终端设备位于非灾难区域。终端设备位于灾难区域也可以描述为终端设备不位于非灾难位置区域。本申请实施例中终端设备是否位于灾难区域的描述方式并不过多限定。
可以理解的是，第一位置信息可以是指终端设备的位置信息。位置信息可以使用位置标识或实时位置表示。
作为一种实施方式，第一位置信息例如可以是指终端设备所接入的服务小区所对应的位置标识，位置标识例如可以使用以下至少一种表示：跟踪区域码、跟踪区域标识或区域配置等。实时位置可以是指通过定位系统采集的经度、纬度、高度等数据。
1、在第一位置信息为位置标识
灾难位置信息包括第一位置信息可以是指灾难位置信息所包含的位置标识中存在第一位置信息的位置标识。与之对应的，灾难位置信息不包括第一位置信息可以是指灾难位置信息所包含的位置标识中不存在第一位置信息的位置标识。
相应地，非灾难位置信息包括第一位置信息，可以是指非灾难位置信息所包含的跟踪区域的标识中存在第一位置信息的位置标识。与之对应的，非灾难位置信息不包含第一位置信息可以是指非灾难位置信息所包含的跟踪区域的标识中不存在第一位置信息的位置标识。
2、第一位置信息为实时位置
灾难位置信息包括第一位置信息可以是指灾难位置信息对应的灾难区域中包含第一位置信息的实时位置信息。与之对应的，灾难位置信息不包括第一位置信息可以是指灾难位置信息对应的灾难区域中不包含第一位置信息的实时位置信息。
相应地，非灾难位置信息包括第一位置信息，可以是指，非灾难位置信息对应的非灾难区域中包含第一位置信息的实时位置信息。与之对应的，非灾难位置信息不包括第一位置信息，可以是指，非灾难位置信息对应的非灾难区域中不包含第一位置信息的实时位置信息。步骤503、终端设备根据预警检测结果，确定终端设备的第一动作。
可选地，步骤503，可以包括：若预警检测结果为终端设备位于灾难区域，则确定第一执行动作为第一动作。若预警检测结果为终端设备不位于灾难区域，则确定第二执行动作为第一动作。
步骤504、终端设备执行第一动作。第一动作可以为第一执行动作或第二执行动作。
可选地，终端设备执行第一动作具体可以是指终端设备执行第一执行动作或第二执行动作。
可以理解的是，第一执行动作和第二执行动作仅是为了描述终端设备所要执行的一些动作或指令，“第一”和“第二”的描述仅是为了从名称上区分不同的动作，并不具备顺序、大小的含义。第一执行动作和第二执行动作还可以描述为其它词语，例如第一子动作和第二子动作，或者第一目标动作和第二目标动作。当然，本申请中的动作一词也可以使用类似含义的词语，例如，信令、命令、指令、操作、处理等，本申请对此并不过多限定。
本申请实施例的通信方法中，通过预警检测，确定终端设备是否位于灾难区域，实现对灾难区域内的终端设备和非灾难区域内的终端设备的区分，并针对灾难区域内的终端设备和非灾难区域内的终端设备设置不同的动作，实现为不同区域的终端设备实施不同的流量控制策略，及时准确地完成灾难区域的预警，减少公共恐慌，提高灾难应对效率。
在一种可能的设计中，在终端设备位于灾难区域的情况下，第一动作是指第一执行动作。
在终端设备不位于灾难区域的情况下，第一动作是指第二执行动作。
如图6所示为本申请实施例提供的一种通信方法600的示例图。参考图6，在步骤601中，网络设备可以向终端设备发送预警消息。在步骤602中，网络设备还可以向终端设备发送第一指示信息。之后，在步骤603中，终端设备可以根据第一指示信息中的灾难位置信息和/或非灾难位置信息，判断终端设备是否位于灾难区域。若是，则执行步骤604，若否则执行步骤605。步骤604、确定第一执行动作为第一动作。步骤605、确定第二执行动作为第一动作。从而，网络设备可以在步骤606中执行第一动作。
本申请实施例中，终端设备位于灾难区域的情况下，可以执行第一执行动作。终端设备位于非灾难区域的情况下，可以执行第二执行动作。在不同情况下执行不同的动作，使得终端设备可以按照其位置及时作出所要执行的动作的调整，解决不同位置状态下的执行动作的确认问题，能够为减少通信资源的占用提供可靠保证。
在灾难发生时，可以将网络设备的覆盖区域划分为灾难区域和非灾难区域。灾难区域所对应的位置信息可以为灾难位置信息。非灾难区域对应的位置信息可以为非灾难位置信息。
为了以更简洁、更明确的方式指明灾难区域，可以引入跟踪区域来辨别不同的区域。因此，作为一种可选方式，灾难位置信息可以包括以下至少一项：第一跟踪区域码、第一跟踪区域列表、第一跟踪区域标识、第一区域配置。非灾难位置信息为以下至少一项：第二跟踪区域码、第二跟踪区域列表、第二跟踪区域标识、第二区域配置。
应理解，在通信领域中，为了对小区进行管理，定义了小区所属跟踪区域码(Tracking Area Code，TAC)。跟踪区域码用于在移动通信网络中标识和管理跟踪区域。一个跟踪区域码可以对应一个或多个小区。通过跟踪区域码，可以区分不同的跟踪区域，从而实现对不同区域的管理和控制。
跟踪区域列表(Tracking Area List，TAL)是一组跟踪区域的列表，跟踪区域列表中可以包括多个跟踪区域码。
跟踪区域标识(Tracking Area Identity，TAI)是指用于表示跟踪区域的标识码。TAI可以包括三个部分，分别为MCC(Mobile Country Code，移动国家码)、MNC(Mobile Network Code，移动网络码)和TAC。其中，MCC用于标识PLMN(Public Land Mobile Network，公共陆地移动网络)所在的国家。MNC用于标识一个国家内的PLMN。
区域配置(AreaConfiguration)是指在使用路由协议时，将网络中的路由器逻辑上划分为不同的组/区域，并对这些区域进行管理和设置。
本申请实施例中，使用跟踪区域码、跟踪区域列表、跟踪区域标识和/或区域配置等信息来定义位置信息，使得灾难位置信息和/或非灾难位置信息的表述方式更为灵活，可以适应更多的应用场景，丰富了第一指示信息的信息内容，可以有效提升系统表达的稳定性和可靠性。
如上文，第一动作可以为第一执行动作或第二执行动作。为了使得终端设备明确所要执行的具体动作。本申请实施例中，第一执行动作可以为以下至少一项：
执行预警提示；维持与灾难预警关联的第一协议数据单元PDU会话处于激活状态；维持第一PDU会话流量不变；为终端设备执行限流策略；对与灾难预警无关的第二PDU会话执行去激活。
其中，第一PDU会话可以为终端设备的PDU会话中与灾难预警相关联的PDU会话。第二PDU会话可以为终端设备的PDU会话中与灾难预警无关的PDU会话。
应理解，协议数据单元(Protocol Data Unit，PDU)会话可以是指在终端设备和网络设备之间的交互PDU。
应理解，终端设备执行第一执行动作具体可以包括以下至少一项：
终端设备执行预警提示。
终端设备维持第一协议数据单元PDU会话处于激活状态。
终端设备维持第一PDU会话流量不变。
终端设备执行限流策略。
终端设备的第二PDU会话执行去激活。
可选地，终端设备还可以执行预警提示和对第二PDU会话执行去激活。及时进行预警提示的同时，还可以减少激活的PDU会话数量，降低终端设备对通信资源的占用。
可选地，终端设备还可以执行预警提示、对第二PDU会话执行去激活和位置第一PDU会话处于激活状态。实现及时有效的预警提示的同时减少PDU会话数量并降低集合的PDU会话占用的通信资源，有效降低了通信资源的占用。
其中，第一PDU会话为与灾难预警关联的PDU会话，第二PDU会话为与灾难预警无关的PDU会话。
与灾难预警关联的PDU会话例如可以是指能够接收与灾难预警相关的消息的PDU会话。与子安预警无关的PDU会话例如可以是指不参与接收与灾难预警相关的消息的PDU会话。终端设备可以根据PDU会话的功能或场景确定PUD会话的会话类型。会话类型包括与灾难预警关联的PDU会话，或，与灾难预警无关的PDU会话。
限流策略可以是指为终端设备设置的能够代表流量的指标的上线。例如，限流策略可以包括以下至少一项：终端设备能够激活的PUD会话的最大数量；单个PDU会话占用的最大带宽等。当然，其它能够表征流量的指标，例如网络设备的最大访问数量、网络设备允许接入的UE数量，也可以属于限流策略的一种实施方式。此外，限流策略的具体内容还可以参考下文实施例的描述，本实施例中对此并不过多限定。
应理解，限流策略的制定可以根据具体的业务场景和需求进行选择和调整，本实施例中对限流策略的具体实施方式不作过多限定。
在一种可能的设计中，终端设备执行预警提示可以包括显示预警提示页面，预警提示页面中可以包括提示文本。提示文本例如可以为“您所在地区发生某类型极端天气”。还可以显示预警提示弹窗，预警提示弹窗中可以包括提示问题。当然还可以通过短消息、即时通讯消息等进行预警提示。
可以理解的是，会话处于激活状态可以是指网络设备和终端设备之间的连接保持活跃状态。也就是，激活状态可以是指终端设备和网络设备为PDU会话建立的通信链路维持连接状态。例如，为了保持PDU会话处于激活状态，终端设备可以在会话超时时间内向网络设备发送心跳检测请求(如PING请求)，网络设备接收到心跳检测请求之后，会重新激活相应的会话。
可以理解的是，会话去激活可以是指终端设备和网络设备为PDU会话建立的通信链路断开或连接失效。例如，终端设备需要对对话进行去激活时，可以向SMF(会话)报告需要去激活的PDU会话，SMF随后会对该PDU会话去激活。
本申请实施例中，通过在第一指示信息中携带动作信息，可以使终端设备明确第一执行动作所要执行的具体动作，使得终端设备及时对预警动作做出相应的响应，提高动作执行效率和有效性。
为了使得终端设备明确所要执行的具体动作。本申请实施例中，第二执行动作可以为以下至少一种：
不执行预警提示；对终端设备的第三PDU会话执行去激活；为终端设备执行限流策略。
其中，第三PDU会话可以为与灾难预警无关的PDU会话。与灾难预警无关的PDU会话例如可以是指与通话功能无关的会话或占用通信资源较高的会话。例如第三PDU会话可以是指用于获取视频的PDU会话，或者，用于浏览网页的PDU会话。
可选地，终端设备不执行预警提示可以是指终端设备不执行预警内容的输出操作。对终端设备的第三PDU会话执行去激活可以是指对终端设备中与灾难预警无关的PDU会话执行去激活。
应理解，终端设备执行第二执行动作具体可以包括以下至少一项：
终端设备不执行预警提示。
终端设备对第三PDU会话执行去激活。
终端设备执行限流策略。
需要说明的是，终端设备可以触发第二PDU会话或第三PDU会话的去激活。除此之外，网络设备也可以触发对终端设备的第二PDU会话或第三PDU会话的去激活。网络设备例如可以是指AMF、基站等任意设备，本实施例中对此并不过多限定。
本申请实施例中，通过在第一指示信息中携带动作信息，可以使终端设备明确第二执行动作所要执行的具体动作，使得终端设备及时对预警动作做出相应的响应，提高动作执行效率和有效性。
如上文，为了使得终端设备确定所要执行的第一执行动作或第二执行动作。第一指示信息中可以携带动作信息(action)，动作信息可以用于确定第一执行动作和第二执行动作。
具体地，第一指示信息可以携带第一动作信息和第二动作信息。第一动作信息用于确定第一执行动作，第二动作信息用于确定第二执行动作。
进一步地，本申请的通信方法还包括：根据第一动作信息，确定第一执行动作。根据第二动作信息，确定第二执行动作。
通过动作信息确定执行动作可以存在两种实施方式。
实施方式1，第一动作信息可以为第一执行动作的执行动作标识。第二动作信息可以为第二执行动作的执行动作标识。
实施方式2，第一动作信息可以为第一执行动作中各第一目标动作的动作标识信息。第二动作信息可以为第二执行动作中各第二目标动作的动作标识信息。
下面将对上述两种指示方式进行详细说明。
在一种可能的设计中，可以预先定义至少一个动作，各个动作分别设置有动作标识信息。每个动作的动作标识信息可以唯一地标识该动作。动作标识信息可以包括以下至少一种：动作名称、动作标识、动作编号、动作编码。动作标识信息可以包括一个或多个字符，字符例如可以为符号、数字、字母、特殊符号等。
例如，假设预定义了9个动作，这9个动作分别为执行预警提示、维持与灾难预警关联的PDU会话处于激活状态、对与灾难预警无关的PDU会话执行去激活、执行限流策略以及维持会话流量不变、不执行预警提示、取消预警提示、重新激活已被去激活的PDU会话；取消限流策略。
其中，执行预警提示的动作标识信息为第一信息。维持与灾难预警关联的PDU会话处于激活状态的动作标识信息为第二信息。对于灾难预警无关的PDU会话执行去激活的动作标识信息为第三信息。执行限流策略的动作标识信息为第四信息。维持会话流量不变的动作标识信息为第五信息。不执行预警提示的动作标识信息为第六信息。取消预警提示的动作标识信息为第七信息。重新激活已被去激活的PDU会话的动作标识信息为第八信息。取消限流策略的动作标识信息为第九信息。
示例性地，动作标识信息可以使用数字表示。示例性地，第一信息可以使用“1”表示，第二信息可以使用“2”表示，第三信息可以使用“3”表示，第四信息可以使用“4”表示以及第五信息可以使用“5”表示，第六信息可以使用“6”，第七信息可以使用“7”表示以及第八信息可以使用“8”表示，第九信息可以使用“9”。当然，上述各动作标识信息的字符仅是示例性的。
实施方式1，动作信息可以为各动作的动作标识信息。也就是，动作信息中可以直接携带动作标识信息，用以直接确定第一执行动作和第二执行动作。
进一步地，第一动作信息可以为各个第一目标动作的动作标识信息。第二动作信息可以为各个第二目标动作的动作标识信息。第一目标动作可以为第一执行动作中的动作。第二目标动作为第二执行动作中的动作。
以上述1-9所示的动作标识信息为例，第一动作信息例如可以为：“12345”，第二动作信息例如可以为“634”。
在动作信息直接使用动作标识信息的基础上，根据第一动作信息，确定第一执行动作可以包括：根据第一动作信息中至少一个动作标识信息，确定至少一个第一目标动作，并将至少一个第一目标动作确定为第一执行动作。根据第二动作信息，确定第二执行动作可以包括：根据第二动作信息中至少一个动作标识信息，确定至少一个第二目标动作，并将至少一个第二目标动作确定为第二执行动作。
实施方式2，动作信息还可以是指预先定义的执行动作的执行动作标识。例如可以根据至少一个动作，预先建立至少一个执行动作，并为每个执行动作设置相应的执行动作标识。
示例性地，假设定义三个执行动作，分别为第一执行动作、第二执行动作和第三执行动作，并从上述至少一个动作中为各执行动作选择相应的动作。第一执行动作和第二执行动作各自具体的动作可以如上文，第三执行动作具体可以如下文，在此不再赘述。
其中，第一执行动作可以关联相应的执行动作标识，例如简称为第一标识。第二执行动作可以关联相应的执行动作标识，例如可以简称为第二标识。第三执行动作可以关联相应的执行动作标识，例如可以简称为第三标识。
示例性地，上述第一标识使用“01”表示，第二标识使用“10”表示。也就是，第一动作信息的执行动作标识为“01”，第二动作信息的执行动作标识为“10”。
此情况下，终端设备还用于：在第一动作信息为第一标识的情况下，确定该第一标识对应的第一执行动作。在第二动作信息为第二标识的情况下，确定该第二标识对应的第二执行动。
本申请的技术方案中，通过在第一指示信息中携带第一动作信息和第二动作信息，而第一动作信息和用于确定第一执行动作，第二动作信息用于确定第二执行动作。实现利用动作信息来指示执行动作，可以根据灾难的区域划分对动作进行调整，提高动作设置的效率和灵活性。
如上文，第三PDU会话可以是指与终端设备的PDU会话中的非必要会话。例如可以是指占用通信资源较高的会话。在一种可能的设计中，还包括以下至少一项：
第三PDU会话的带宽需求大于或等于带宽阈值。
第三PDU会话的网络交互频率大于或等于频率阈值。
可选地，终端设备可以确定处于激活状态的至少一个PDU会话。获取处于激活状态的至少一个PDU会话各自的带宽需求，将处于激活状态的各PDU会话的带宽需求与带宽阈值进行比较，若任意PDU会话的带宽需求大于或等于该带宽阈值，则确定该PDU会话为第三PDU会话。
还可以获取处于激活状态的至少一个PDU会话各自的网络交互频率，将处于激活状态的各PDU会话的网络交互频率与频域阈值进行比较，若任意PDU会话的网络交互频率大于或等于频域阈值，则确定该PDU会话为第三PDU会话。
可以理解的是，带宽需求可以是指PDU会话在具体的通话场景中所需要占用的带宽。以PDU会话用于获取视频数据包为例，PDU会话的带宽需求为正常播放视频，不出现视频卡顿时，用于传输视频数据包的PDU会话所需要的最小带宽。
带宽可以是数据传输的速率，即单位时间内能够传输的数据量，带宽的衡量单位包括比特每秒(bps)、千比特每秒(kbps)、兆比特每秒(Mbps)或吉比特每秒(Gbps)等。带宽越高，数据传输的速度就越快。
还可以理解的是，网络交互频率是指终端设备通过PDU会话与网络设备之间交换数据或信息的频率。PDU会话的网络交互频率越高，则需要更多的通信资源。
本申请的技术方案中，选择带宽需求大于或等于带宽阈值的PDU会话，实现对带宽需求较高的PDU会话进行去激活，可以有效降低终端设备占用的通信资源。此外，还可以选择网络交互频率大于或等于频域阈值的PDU会话。
如上文，第一执行动作或第二执行动作中可以包括执行限流策略。PDU会话一般由SMF管理，因此，限流策略可以由SMF提供。SMF可以将限流策略下发到用户平面功能(User Plane Function，UDP)或AMF，再由UDP或AMF发送至网络设备。而网络设备再将该限流策略下发给终端设备。
也就是，本申请提供的通信方法还可以包括：
接收网络设备发送的限流策略，其中，限流策略由用户平面功能UDF或者接入移动管理AMF下发到网络设备的，AMF或UDF的限流策略由SMF提供。
终端设备在接收到网络设备发送的限流策略之后，还用于在本地配置限流策略。
图7为本申请实施例中提供的一种限流策略的下发方法700的信令图。
步骤701、SMF向AMF/UDF下发限流策略。相应地，AMF/UDF可以接收限流策略。
步骤702、AMF/UDF向网络设备下发限流策略。相应地，网络设备可以接收限流策略。
步骤703、网络设备向终端设备下发限流策略，相应地，终端设备可以接收网络设备发送的限流策略，并在本地配置该限流策略。
步骤704、网络设备向终端设备发送第一指示信息。第一指示信息可以用于指示终端设备在网络设备所覆盖区域有灾难发生时的第一动作。第一动作可以为第一执行动作或第二执行动作，第一执行动作可以包括执行限流策略。第二执行动作可以包括执行限流流程。
步骤705、终端设备执行第一动作，以执行限流策略。
如上文，执行限流策略可以为预定义的一种动作。该第一指示信息中可以携带“执行限流策略”这一动作的动作标识信息或预定义的执行动作标识所对应的动作中可以包含“执行限流策略”这一动作。因此，第一动作中包含执行限流策略的情况下，终端设备即可以执行预先配置的限流策略。
本申请的技术方案中，终端设备可以配置限流策略，并在需要执行限流策略的情况下，执行该限流策略。通过限流策略的预配置可以使得终端设备所需要执行的动作的指示方式更为灵活，提供更边界的减少通信资源占用的实现方式，提高通信资源的控制效率和灵活性。
应理解，限流策略可以是指对与灾难预警无关的PDU会话的流量进行限制的方式。具体地，限流策略可以包括与灾难预警无关的PDU会话的数据传输最大比特率。
可选地，执行限流策略可以是指将与灾难预警无关的PDU会话的数据传输速率限制在最大比特率之内。也就是，控制与灾难预警无关的PDU会话的数据传输速率小于或等于最大比特率。
本申请的技术方案中，通过限制PDU会话传输数据过程中的最大比特率，可以有效降低终端设备中与灾难预警无关的PDU会话的数据传输速率，直接降低了终端设备占用的通信资源，有利于快速完成通信资源的非必要占用的解除，使得通信资源能够更有效地利用于灾难预警相关，提高资源利用率。
上述实施例中介绍了灾难发生时，网络设备可以进行灾难预警，以保障用户的生命和财产安全。而在灾难终止时，可以通知网络设备取消灾难预警。
图8为本申请实施例提供的一种通信方法的信令图，该通信方法为现有技术中灾难预警取消场景的示例图。如图8，灾难预警取消场景下的通信方法800可以包括下列步骤：
步骤801中，CBE可以向CBCF或PWS-IWF发送停止应急广播消息。
步骤802中，CBCF或PWS-IWF可以在接收停止应急广播消息之后，向AMF发送包含预警区域信息的停止预警请求。
步骤803中，AMF接收停止预警请求，并对停止预警请求作出响应，向CBCF或PWS-IWF发送停止预警响应消息。
步骤804中，CBCF或PWS-IWF接收停止预警响应消息之后，可以向CBE发送停止预警响应消息，该停止预警响应消息是对CBE的停止应急广播消息作出的响应。
步骤805中，AMF还可以向NG-RAN node发送预警取消请求。
步骤806中，NG-RAN node可以在接收预警取消请求之后，执行取消广播预警消息。
步骤807中，NG-RAN node可以向AMF发送取消响应消息。
步骤808中，AMF接收停止响应消息之后，可以向CBCF或PWS-IWF发送停止预警广播指示信息。
步骤809中，AMF可以在跟踪记录中记录信息传递结果。
本申请的技术方案中，在灾难终止时，可以通过PWS系统通知网络设备取消灾难预警。及时对灾难预警进行取消，为用户恢复正常工作和生活提供了可靠保证。
但是，图8所示的实施例中，NG-RAN node仅是单纯的取消了广播预警消息，但是终端设备可能还处于限流状态。例如，将与灾难预警无关的PDU会话仍执行限流策略。
因此，为了降低对用户使用终端设备的限制，网络设备在接收预警取消请求之后还可以下发指示信息以指示终端设备恢复通信资源的正常使用。
图9为本申请实施例提供的一种通信方法的信令图，该通信方法900可以包括下列步骤：
步骤901、终端设备接收网络设备发送的第二指示信息。
其中，第二指示信息用于指示终端设备在网络设备所覆盖区域灾难解除时所执行的第二动作。
步骤902、终端设备执行第二动作。
其中，第二动作用于恢复终端设备对通信资源的正常使用。
可选地，网络设备在发送第二指示信息之前，还用于执行步骤903：终端设备取消广播预警消息。
可选地，网络设备在取消广播预警消息之前，还用于执行接收预警取消请求。关于预警取消消息请求的传输过程可以参考图8所示的实施例，在此不再赘述。
可选地，网络设备在接收第二指示信息之前还用于：接收第一指示信息。
在一种可能的设计中，第二指示信息可以承载于第二SIB中。第二SIB例如可以为SIB7。
当然，终端设备还用于接收第二SIB，从第二SIB中读取第二指示信息。第二指示信息可以为第二SIB的一个字段，该字段可以为第二SIB中原有的字段，也可以是为了承载第二指示信息自定义的字段。字段长度或尺寸可以根据需求设置，本实施例中对此并不过多限定。
本申请的技术方案中，终端设备还可以接收第二指示信息，并在第二指示信息的指示下执行第二动作，以使得终端设备能够恢复对通信资源的正常使用，及时恢复终端设备的通信功能，提高通信恢复效率和可靠性。
以网络设备为卫星网络设备为例，对本申请的技术方案进行详细说明，图10为本公开实施例提供的一种通信方法的信令图。该通信方法10可以包括下列步骤：
步骤1001中，卫星网络设备可以在接收预警取消请求之后，执行取消广播预警消息。
步骤1002中，卫星网络设备可以向终端设备发送第二指示信息。相应地，第二指示信息可以用于指示终端设备在卫星网络设备所覆盖区域灾难解除时所执行的第二动作，第二动作用于恢复终端设备对通信资源的正常使用。
步骤1003中，终端设备可以执行第二动作，以恢复对通信资源的正常使用。
本申请的技术方案中，卫星网络设备在取消广播预警消息之后，可以及时向终端设备发送第二指示信息，第二指示信息可以指示卫星网络设备所覆盖区域解除时所执行的第二动作，而第二动作被终端设备执行时，可以恢复对通信资源的正常使用，提高终端设备的通信恢复效率。
同样以卫星网络设备为例，如图11所示，为本申请实施例提供的一种通信方法的信令图，该通信方法1100可以包括下列步骤：
步骤1101：卫星网络设备向终端设备广播预警消息。相应地，终端设备可以接收卫星网络设备发送的广播预警消息。
步骤1102：卫星网络设备向终端设备发送第一指示信息。相应地，终端设备可以接收卫星网络设备发送的第一指示信息。第一指示信息用于指示终端设备在卫星网络设备所覆盖区域有灾难发生时的第一动作。
步骤1103：终端设备执行第一动作，以对终端设备的流量实施流控策略。
在灾难预警需要解除时，可以发送结束预警的指示信息。
步骤1104：卫星网络设备向终端设备发送第二指示信息。相应地，终端设备可以接收卫星网络设备发送的第二指示信息。第二指示信息用于指示终端设备在卫星网络设备所覆盖区域灾难解除时所执行的第二动作。
步骤1105：终端设备执行第二动作，用以恢复终端设备占用的通信资源。
可选地，卫星网络设备可以提前获取灾难位置信息和/或非灾难位置信息。
在一种可能的设计中，卫星网络设备在向终端设备发送第二指示信息之前，还用于执行：步骤1106：接收预警取消请求。在接收预警取消请求之后，卫星网络设备还用于执行步骤1007、取消广播预警消息。
本申请的技术方案中，在需要进行灾难预警时，及时释放非必要占用的通信资源，为灾难区域内的用户提供更丰富的通信资源，在灾难预警取消时，及时恢复终端设备的通信资源，为用户提供正常的通信服务。使得通信资源的调度更加便利和灵活，能满足不同场景的使用需求。
如上文，第二指示信息可以包括灾难位置信息和/或非灾难位置信息。灾难位置信息和/或非灾难位置信息关联第三执行动作，第二动作为第三执行动作。
本申请的技术方案中，无论是灾难位置信息或非灾难位置信息的终端设备，均可以执行第三执行动作。通过第三执行动作的执行可以恢复终端设备的正常通信资源。使得在灾难预警需求下，减少终端设备的通信资源的占用，而在灾难预警取消时，可以及时恢复终端设备的正常通信，提高对通信资源的控制效率和控制有效性。
在一种可能的设计中，第三执行动作为以下至少一项：
执行取消预警提示；重新激活已被去激活的PDU会话；取消限流策略。
可选地，本申请实施例提供的通信方法还可以包括以下至少一项：
终端设备可以执行取消预警提示；
终端设备重新激活已被激活的PDU会话。
终端设备取消限流策略。
其中，终端设备执行取消预警提示，可以包括：终端设备关闭显示的预警提示页面，或者，终端设备显示取消预警的提示信息。显示取消预警的提示信息例如可以是指显示取消预警提示页面或弹窗。取消预警提示页面或弹窗可以包括提示文本，提示文本例如可以为“您所在地区某类型极端天气已恢复正常”。此外，还可以通过短消息、即时通讯消息等进行取消预警提示。
其中，终端设备重新激活已被激活的PDU会话可以是指，终端设备对被去激活的PDU会话进行重新激活。
示例性地，终端设备可以向网络设备发起被去激活的PDU会话的重连接请求，网络设备响应于重连接请求为该PDU会话分配对应的通信资源，并作出响应。
如上文，限流策略可以是指与灾难预警无关的PDU会话的数据传输最大必特率。
终端设备取消限流策略可以是指终端设备取消对PDU会话的数据传输最大比特率的限制。终端设备的PDU会话的数据传输的最大速率可以大于限流策略中的数据传输最大必特率。
可选地，第三执行动作与第一执行动作或第二执行动作的定义方式相同。第三执行动作的第三动作信息也可以作为第二指示信息中的子信息或部分信息。
示例性地，第三动作信息可以为第三执行动作的执行动作标识。或者，第三动作信息可以为第三执行动作中各第三目标动作的动作标识信息。
同样以上文的9个动作为例，若使用各第三目标动作的动作标识信息表示，第三动作信息可以使用“789”表示。若使用执行动作标识表示，第三动作信息例如可以使用第三标识。第三标识例如可以为“11”。
本申请的技术方案中，通过设置第三执行动作，例如，取消预警提示、重新激活已被激活的PDU会话和/或取消限流策略等动作，可以使得终端设备明确具体执行的动作，及时对灾难预警取消做出相应的相应，提高动作执行效率和有效性。
以上，结合图3至图11详细说明了本申请实施例提供的通信方法，以下结合图12详细说明本申请实施例提供的装置。
图12是本申请实施例提供的通信装置1200的示意性框图。如图12所示，通信装置1200可以包括处理单元1201和收发单元1202。
在一种可能的设计中，该通信装置1200可以实现上文方法实施例中的对应终端设备的操作，例如，该通信装置可以为终端设备，或者配置于终端设备中的部件，例如芯片或电路。
该通信装置可实现如图3至图11所示方法实施例中终端设备的相应操作。例如，该收发单元1202可以执行方法中的301部分的步骤，该处理单元1201可以执行方法中的302部分的步骤。并且该通信装置1200中的各单元和上述其他操作和/或功能分别为了实现图3所示的方法实施例中的相应流程。
在一种可能的设计中，该通信装置1200可以实现上文方法实施例中的对应网络设备的操作，例如，该通信装置可以为网络设备，或者配置于网络设备中的部件，例如芯片或电路。
该通信装置可实现如图3至图11所示方法实施例中网络设备的相应操作。例如，该收发单元1202可以执行方法中的301的部分步骤。并且该通信装置1200中的各单元和上述其他操作和/或功能分别为了实现图3所示的方法实施例中的相应流程。
具体来说，该通信装置1200用于执行图3所示的通信方法时，收发单元1202可用于：接收网络设备发送的第一指示信息，第一指示信息用于指示终端设备在网络设备所覆盖区域有灾难发生时的第一动作。
相应地，通信装置1200应用于网络设备时，收发单元1202还用于：向终端设备发送第一指示信息。
处理单元1201可以用于：执行第一动作，以对终端设备的流量实施流控策略。
可选地，处理单元1201还用于：根据第一指示信息确定第一动作。
进一步地，第一指示信息包括灾难位置信息和/或非灾难位置信息，灾难位置信息关联第一执行动作，以及非灾难位置信息关联第二执行动作，第一动作为第一执行动作或第二执行动作。
处理单元1201还用于：根据第一指示信息中的灾难位置信息和/或非灾难位置信息，确定第一动作。
在一种可能的设计中，处理单元1201还用于执行第一执行动作。
进一步地，处理单元1201执行第一执行动作具体可以是执行以下至少一项：执行预警提示；维持与灾难预警关联的第一协议数据单元PDU会话处于激活状态；维持第一PDU会话流量不变；执行限流策略；对与灾难预警无关的第二PDU会话执行去激活。
在又一种可能的设计中，处理单元1201还用于执行第二执行动作。
进一步地，处理单元1201执行第二执行动作具体可以是执行以下至少一项：不执行预警提示；对终端设备的第三PDU会话执行去激活；执行限流策略。
可选地，处理单元1201具体可以是：对终端设备的PDU会话中带宽需求大于或等于带宽阈值的第三PDU会话执行去激活，和/或，对终端设备的PDU会话中网络交互频率大于或等于频率阈值的第三PDU会话执行去激活。
作为一种可选方式，收发单元1202还用于：接收网络设备发送的限流策略，其中，限流策略由用户平面功能UPF或者接入移动管理AMF下发到网络设备的，AMF或UDF的限流策略由SMF提供。
相应地，通信装置1200应用于网络设备时，收发单元1202还用于：接收用户平面功能UPF或者接入移动管理AMF下发的限流策略；将限流策略发送至网络设备。
其中，限流策略可以是指与灾难预警无关的PDU会话的数据传输最大必特率。
进一步地，处理单元1201还可以控制与灾难预警无关的PDU会话的传输速率小于数据传输最大必特率。
在又一种可能的设计中，处理单元1201还用于：根据第一指示信息，确定终端设备的预警检测结果，预警检测结果包括终端设备位于灾难区域或不位于灾难区域，灾难区域是指网络设备覆盖的区域中发生灾难的区域；根据预警检测结果，确定终端设备的第一动作。
可选地，处理单元1201还用于：根据灾难位置信息确定灾难区域。根据非灾难位置信息确定非灾难区域。在终端设备位于灾难区域的情况下，第一动作是指第一执行动作；在终端设备不位于灾难区域的情况下，第一动作是指第二执行动作。
可选地，处理单元1201还用于：从系统信息块SIB中读取第一指示信息。
作为又一种可选方式，收发单元1202还用于：接收网络设备发送的第二指示信息，第二指示信息用于指示终端设备在网络设备所覆盖区域灾难解除时所执行的第二动作，第二动作用于恢复终端设备对通信资源的正常使用。
相应地，通信装置1200应用于网络设备时，收发单元1202还用于：向终端设备发送第二指示信息。
可选地，第二指示信息包括灾难位置信息和/或非灾难位置信息，灾难位置信息和/或非灾难位置信息关联第三执行动作，第二动作为第三执行动作。
进一步地，处理单元1201还用于执行第三执行动作。
具体地，处理单元1201执行第三执行动作具体可以是指执行以下至少一项：执行取消预警提示；重新激活已被去激活的PDU会话；取消限流策略。
可选地，处理单元1201还用于：从系统信息块SIB中读取第二指示信息。
还应理解，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
应理解，该通信装置1200可对应于图2所示卫星通信系统中的终端设备1020或卫星1010。其中，通信装置1200中的处理单元1201可对应于终端设备1020或网络设备1010中的处理器，可通过终端设备1020或卫星1010中的处理器调用存储器中存储的指令，以实现上述功能，比如网络编码、获取原始包等功能；收发单元1202可对应于终端设备1020或卫星1010中的接口，可响应于处理器的指令，实现上述接收和/或发送数据的功能。
还应理解，该通信装置1200中的收发单元1202可以通过收发器或者通信接口实现，例如可对应于图13中示出的终端设备2000中的收发器2020以及图14中示出的网络设备3000中的收发器3100。该通信装置1200中的处理单元1201可以通过至少一个处理器实现，例如可对应于图13中示出的终端设备2000中的处理器2010以及图14中示出的网络设备3000中的处理器3202。
图13是本申请实施例提供的终端设备2000的结构示意图。该终端设备2000可应用于如图2所示的系统中，执行上述方法实施例中终端设备的功能。如图13所示，该终端设备2000包括处理器2010和收发器2020。可选地，该终端设备2000还包括存储器2030。其中，处理器2010、收发器2020和存储器2030之间可以通过内部连接通路互相通信，传递控制和/或数据信号，该存储器2030用于存储计算机程序，该处理器2010用于从该存储器2030中调用并运行该计算机程序，以控制该收发器2020收发信号。可选地，终端设备2000还可以包括天线2040，用于将收发器2020输出的上行数据或上行控制信令通过无线信号发送出去。
上述处理器2010可以和存储器2030可以合成一个处理装置，处理器2010用于执行存储器2030中存储的程序代码来实现上述功能。具体实现时，该存储器2030也可以集成在处理器2010中，或者独立于处理器2010。该处理器2010可以与图12中的处理单元1201对应。
上述收发器2020可以与图12中的收发单元1202对应。收发器2020可以包括接收器(或称接收机、接收电路)和发射器(或称发射机、发射电路)。其中，接收器用于接收信号，发射器用于发射信号。
应理解，图13所示的终端设备2000能够实现图3至图11所示方法实施例中涉及终端设备的各个过程。终端设备2000中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详细描述。
上述处理器2010可以用于执行前面方法实施例中描述的由终端设备内部实现的动作，而收发器2020可以用于执行前面方法实施例中描述的终端设备向网络设备发送或从网络设备接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
可选地，上述终端设备2000还可以包括电源2050，用于给终端设备中的各种器件或电路提供电源。
除此之外，为了使得终端设备的功能更加完善，该终端设备2000还可以包括输入单元2060、显示单元2070、音频电路2080、摄像头2090和传感器2100等中的一个或多个，音频电路还可以包括扬声器2082、麦克风2084等。
图14是本申请实施例提供的网络设备的结构示意图，例如可以为基站/CU的结构示意图。该基站3000可应用于如图1所示的系统中，执行上述方法实施例中网络设备的功能。如图14所示，该基站3000可以包括一个或多个射频单元，如远端射频单元(remote radio unit，RRU)3100和一个或多个基带单元(BBU)(也可称为分布式单元(DU))3200。RRU 3100可以称为收发单元，与图12中的收发单元1202对应。可选地，该收发单元3100还可以称为收发机、收发电路、或者收发器等等，其可以包括至少一个天线3101和射频单元3102。可选地，收发单元3100可以包括接收单元和发送单元，接收单元可以对应于接收器(或称接收机、接收电路)，发送单元可以对应于发射器(或称发射机、发射电路)。RRU 3100部分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于向终端设备发送指示信息。BBU 3200部分主要用于进行基带处理，对基站进行控制等。RRU3100与BBU 3200可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。
BBU 3200为基站的控制中心，也可以称为处理单元，可以与图12中的处理单元1201对应，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如BBU(处理单元)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程，例如，生成上述指示信息等。
在一个示例中，BBU 3200可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。BBU 3200还包括存储器3201和处理器3202。存储器3201用以存储必要的指令和数据。处理器3202用于控制基站进行必要的动作，例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。存储器3201和处理器3202可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
应理解，图14所示的基站3000能够实现图3至图11所示方法实施例中涉及网络设备的各个过程。基站3000中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详细描述。
上述BBU 3200可以用于执行前面方法实施例中描述的由网络设备内部实现的动作，而RRU 3100可以用于执行前面方法实施例中描述的网络设备向终端设备发送或从终端设备接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
应理解，图14所示出的基站3000仅为网络设备的一种可能的架构，而不应对本申请构成任何限定。本申请所提供的方法可适用于其他架构的网络设备。例如，包含CU、DU和有源天线单元(active antenna unit，AAU)的网络设备等。本申请对于网络设备的具体架构不作限定。
本申请实施例还提供了一种处理装置，包括处理器和接口；处理器用于执行上述任一方法实施例中的方法。
应理解，上述处理装置可以是一个或多个芯片。例如，该处理装置可以是现场可编程门阵列(fie ld programmable gate array，FPGA)，可以是专用集成芯片(appl icat ion spec ific integrated c ircuit，AS IC)，还可以是系统芯片(system on chip，SoC)，还可以是中央处理器(central proce s sor unit，CPU)，还可以是网络处理器(network proce s sor，NP)，还可以是数字信号处理电路(digital s ignal proce s sor，DSP)，还可以是微控制器(micro control ler unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应注意，本申请实施例中的处理器可以是一种集成电路芯片或芯片系统，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP)、专用集成电路(AS IC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(e lectrical ly EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random acce s s memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(stat ic RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchl ink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
根据本申请实施例提供的方法，本申请还提供一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当该计算机程序代码在计算机上运行时，使得该计算机执行图3至图11所示实施例中任一实施例的方法。
根据本申请实施例提供的方法，本申请还提供一种计算机可读介质，该计算机可读介质存储有程序代码，当该程序代码在计算机上运行时，使得该计算机执行图3至图11所示实施例中任一实施例的方法。
根据本申请实施例提供的方法，本申请还提供一种系统，其包括前述的一个或多个终端设备以及一个或多个网络设备。
上述各个装置实施例中网络设备与终端设备和方法实施例中的网络设备或终端设备完全对应，由相应的模块或单元执行相应的步骤，例如通信单元(收发器)执行方法实施例中接收或发送的步骤，除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中，处理器可以为一个或多个。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通信。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各种说明性逻辑块(i l lustrat ive logical block)和步骤(step)，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，各功能单元的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令(程序)。在计算机上加载和执行计算机程序指令(程序)时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber l ine，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video di sc，DVD))、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random acces s memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (30)

  1. 一种通信方法，其特征在于，包括：
    接收网络设备发送的第一指示信息，所述第一指示信息用于指示终端设备在所述网络设备所覆盖区域有灾难发生时的第一动作；
    执行所述第一动作，以对所述终端设备的流量实施流控策略。
  2. 根据权利要求1所述的方法，其特征在于，所述第一指示信息包括灾难位置信息和/或非灾难位置信息，所述灾难位置信息关联第一执行动作，以及所述非灾难位置信息关联第二执行动作，所述第一动作为所述第一执行动作或所述第二执行动作。
  3. 根据权利要求2所述的方法，其特征在于，所述灾难位置信息为以下至少一项：第一跟踪区域码、第一跟踪区域列表、第一跟踪区域标识、第一区域配置，所述非灾难位置信息为以下至少一项：第二跟踪区域码、第二跟踪区域列表、第二跟踪区域标识、第二区域配置。
  4. 根据权利要求2所述的方法，其特征在于，所述第一执行动作为以下至少一项：
    执行预警提示；维持与灾难预警关联的第一协议数据单元PDU会话处于激活状态；维持第一PDU会话流量不变；执行限流策略；对与灾难预警无关的第二PDU会话执行去激活。
  5. 根据权利要求2所述的方法，其特征在于，所述第一指示信息携带第一动作信息和第二动作信息，所述第一动作信息用于确定所述第一执行动作，所述第二动作信息用于确定所述第二执行动作。
  6. 根据权利要求2所述的方法，其特征在于，所述第二执行动作为以下至少一项：
    不执行预警提示；对所述终端设备的第三PDU会话执行去激活；执行限流策略。
  7. 根据权利要求6所述的方法，其特征在于，包括以下至少一项：
    所述第三PDU会话的带宽需求大于或等于带宽阈值；
    所述第三PDU会话的网络交互频率大于或等于频率阈值。
  8. 根据权利要求4-7任一项所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的限流策略，其中，所述限流策略由用户平面功能UPF或者接入移动管理AMF下发到所述网络设备的，所述AMF或UDF的所述限流策略由SMF提供。
  9. 根据权利要求8所述的方法，其特征在于，所述限流策略包括与灾难预警无关的PDU会话的数据传输最大必特率。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，还包括：
    根据所述第一指示信息，确定所述终端设备的预警检测结果，所述预警检测结果包括所述终端设备位于灾难区域或不位于所述灾难区域，所述灾难区域是指所述网络设备覆盖的区域中发生灾难的区域；
    根据所述预警检测结果，确定所述终端设备的第一动作。
  11. 根据权利要求10所述的方法，其特征在于，还包括：
    在所述终端设备位于所述灾难区域的情况下，所述第一动作是指第一执行动作；
    在所述终端设备不位于所述灾难区域的情况下，所述第一动作是指第二执行动作。
  12. 根据权利要求1-11任一项所述的方法，其特征在于，所述第一指示信息承载于第一系统信息块SIB中。
  13. 根据权利要求1-12任一项所述的方法，其特征在于，还包括：
    接收网络设备发送的第二指示信息，所述第二指示信息用于指示所述终端设备在所述网络设备所覆盖区域灾难解除时所执行的第二动作，所述第二动作用于恢复所述终端设备对通信资源的正常使用。
  14. 根据权利要求13所述的方法，其特征在于，所述第二指示信息包括灾难位置信息和/或非灾难位置信息，所述灾难位置信息和/或非灾难位置信息关联第三执行动作，所述第二动作为所述第三执行动作。
  15. 根据权利要求14所述的方法，其特征在于，所述第三执行动作为以下至少一项：
    执行取消预警提示；重新激活已被去激活的PDU会话；取消限流策略。
  16. 根据权利要求13所述的方法，其特征在于，所述第二指示信息承载于第二SIB中。
  17. 根据权利要求1-16任一项所述的方法，其特征在于，所述网络设备为卫星网络设备。
  18. 一种通信方法，其特征在于，包括：
    向终端设备发送第一指示信息，所述第一指示信息用于指示所述终端设备在网络设备所覆盖区域有灾难发生时要执行的第一动作，所述第一动作由所述终端设备执行后，对所述终端设备的流量实施流控策略。
  19. 根据权利要求18所述的方法，其特征在于，所述第一指示信息包括：灾难位置信息和/或非灾难位置信息，所述灾难位置信息关联第一执行动作，所述非灾难位置信息关联第二执行动作，所述第一动作为所述第一执行动作或所述第二执行动作。
  20. 根据权利要求19所述的方法，其特征在于，所述第一执行动作为以下至少一项：
    执行预警提示；维持与灾难预警关联的第一协议数据单元PDU会话处于激活状态；维持第一PDU会话流量不变；执行限流策略；对与灾难预警无关的第二PDU会话执行去激活。
  21. 根据权利要求19所述的方法，其特征在于，所述第二执行动作为以下至少一项：
    不执行预警提示；对所述终端设备的第三PDU会话执行去激活；执行限流策略。
  22. 根据权利要求20或21所述的方法，其特征在于，所述方法还包括：
    接收用户平面功能UPF或者接入移动管理AMF下发的限流策略；
    将所述限流策略发送至所述网络设备。
  23. 根据权利要求18-22任一项所述的方法，其特征在于，还包括：
    向终端设备发送第二指示信息，所述第二指示信息用于指示所述终端设备在所述网络设备所覆盖区域灾难解除时所执行的第二动作，所述第二动作用于恢复所述终端设备对通信资源的正常使用。
  24. 根据权利要求23所述的方法，其特征在于，所述第二指示信息包括灾难位置信息和/或非灾难位置信息，所述灾难位置信息和/或非灾难位置信息关联第三执行动作，所述第二动作为所述第三执行动作。
  25. 根据权利要求24所述的方法，其特征在于，所述第三执行动作为以下至少一项：
    执行取消预警提示；重新激活已被去激活的PDU会话；取消限流策略。
  26. 根据权利要求18-25任一项所述的方法，其特征在于，所述网络设备为卫星网络设备。
  27. 一种终端设备，其特征在于，包括：处理器和存储器；
    所述存储器存储计算机执行指令；
    所述处理器执行所述存储器存储的计算机执行指令，使得所述终端设备执行如权利要求1-17中任一项所述的通信方法。
  28. 一种网络设备，其特征在于，包括：处理器和存储器；
    所述存储器存储计算机执行指令；
    所述处理器执行所述存储器存储的计算机执行指令，使得所述网络设备执行如权利要求18-26中任一项所述的通信方法。
  29. 一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1-17或18-26任一项所述的方法。
  30. 一种计算机程序产品，其特征在于，包括计算机程序，当所述计算机程序被运行时，使得计算机执行如权利要求1-17或18-26任一项所述的方法。
PCT/CN2025/093576 2024-05-15 2025-05-08 通信方法、设备、存储介质及产品 Pending WO2025237161A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102917329A (zh) * 2011-08-03 2013-02-06 丛林网络公司 灾难响应系统
CN105103621A (zh) * 2013-03-29 2015-11-25 英特尔Ip公司 在网络阻塞期间在用户设备上配设应用类别
US20210051437A1 (en) * 2019-08-16 2021-02-18 Cisco Technology, Inc. Methods to preemptively autoconfigure a mobile network to respond to external emergencies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102917329A (zh) * 2011-08-03 2013-02-06 丛林网络公司 灾难响应系统
CN105103621A (zh) * 2013-03-29 2015-11-25 英特尔Ip公司 在网络阻塞期间在用户设备上配设应用类别
US20210051437A1 (en) * 2019-08-16 2021-02-18 Cisco Technology, Inc. Methods to preemptively autoconfigure a mobile network to respond to external emergencies

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NTT DOCOMO, CHINA MOBILE, KDDI, KT, LG UPLUS, NTT, TELIASONERA, FUJITSU, HITACHI, HUAWEI, INTEL, LG ELECTRONICS, NEC, NTC, PANASON: "Requirements applied to heavy congestion scenarios of ACDC", 3GPP DRAFT; S1-131084, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG1, no. Prague, Czech Republic; 20130128 - 20130201, 2 February 2013 (2013-02-02), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP050682325 *

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