WO2024022425A1 - 通信方法、装置和系统 - Google Patents

通信方法、装置和系统 Download PDF

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Publication number
WO2024022425A1
WO2024022425A1 PCT/CN2023/109499 CN2023109499W WO2024022425A1 WO 2024022425 A1 WO2024022425 A1 WO 2024022425A1 CN 2023109499 W CN2023109499 W CN 2023109499W WO 2024022425 A1 WO2024022425 A1 WO 2024022425A1
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WO
WIPO (PCT)
Prior art keywords
satellite
terminal device
coverage
information
network
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Application number
PCT/CN2023/109499
Other languages
English (en)
French (fr)
Inventor
潘奇
李永翠
温汉姆史蒂夫·詹姆斯
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024022425A1 publication Critical patent/WO2024022425A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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

Definitions

  • the present application relates to the field of communication technology, and in particular, to a communication method, device and system.
  • some satellites may have discontinuous coverage, that is, terminal equipment connected to the satellite network may enter the non-coverage area of the satellite for part of the time and thus be unable to connect to the network.
  • the terminal equipment In the non-coverage area of the satellite, the terminal equipment will be in an unreachable state. Energy saving can be achieved by preventing the terminal equipment and network equipment from initiating communication with each other while the terminal equipment is in the non-coverage area of the satellite.
  • the network equipment cannot determine the coverage status of the terminal equipment under the satellite in a timely manner, especially the terminal equipment in a mobile state. Since the network equipment cannot obtain the mobile location information of the terminal equipment in time, it cannot update the terminal equipment in a timely manner. Satellite coverage information makes it difficult for network equipment to determine the coverage status of terminal equipment, causing the communication efficiency with terminal equipment to be affected, thereby affecting user experience.
  • the present application provides a communication method, device and system that can enable network equipment to timely sense changes in the coverage status of terminal equipment under satellites, thereby improving communication efficiency between network equipment and terminal equipment.
  • the first aspect provides a communication method, which can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method includes: the terminal device receives satellite coverage information from the network device, the satellite coverage information is used to indicate the time when the terminal device is located in the coverage area of the satellite; the coverage status of the terminal device indicated by the satellite coverage information is consistent with the If the actual coverage status of the terminal device under the satellite does not match, the terminal device sends a registration request message to the network device.
  • the terminal device obtains satellite coverage information from the network device, and sends a registration request message to the network device when the coverage status of the terminal device indicated by the satellite coverage information does not match the actual coverage status of the terminal device.
  • the registration request message may trigger the network device to update the satellite coverage information, or in other words, the registration request message may implicitly instruct the network device to update the satellite coverage information.
  • the network device can update the satellite coverage information in time, so that the reachability of the terminal device is not affected when it is located in the satellite coverage area, that is, it can prevent
  • the network equipment may not be able to transmit downlink data in a timely manner because the network equipment does not update the satellite coverage information in real time, thereby improving communication efficiency and user experience. For example, the terminal device moves from the non-coverage area of the satellite into the coverage area of the satellite, that is, the terminal device is currently in a reachable state.
  • the satellite coverage information of the network device indicates that the terminal device is currently located in the non-coverage area of the satellite, that is, the network device It is believed that the terminal equipment is still in an unreachable state. If the network equipment does not update the satellite coverage information in time, the downlink data will not be sent to the terminal equipment, causing the communication efficiency to be affected. Through the above solution, network equipment can be updated with satellite coverage information, so that the accessibility of terminal equipment is not affected and communication efficiency is improved.
  • the registration request message includes location information of the terminal device, and the location information is used to update the satellite coverage information.
  • the terminal device can carry location information in the registration request message, so that the network device can update the satellite coverage information of the terminal device based on the location information, preventing the network device from obtaining the location information of the terminal device through additional processes, thereby reducing signal Reduce overhead and improve communication efficiency.
  • the registration request message includes first indication information, and the first indication information is used to instruct the network device to update the satellite coverage information.
  • the method further includes: the terminal device determining whether the coverage status of the terminal device indicated by the satellite coverage information is consistent with the actual coverage status of the terminal device under the satellite. The coverage status does not match, wherein the determination method specifically includes: the terminal device determines that the satellite coverage information indicates that the terminal device is currently located in a non-coverage area of the satellite, and that the terminal device is currently located in a coverage area of the satellite.
  • the terminal equipment determines that the coverage status of the terminal equipment indicated by the satellite coverage information is consistent with the actual coverage status under the satellite. The coverage status does not match, in this case, the terminal device sends a registration request message to the network device.
  • the satellite coverage information originally saved by the network device indicates that the terminal device is located in the non-coverage area of the satellite. Therefore, the network device will think that the terminal device is in an unreachable state, and therefore will not transmit downlink data to the terminal device.
  • the above solution can allow Network equipment updates satellite coverage information in a timely manner, so that the accessibility of terminal equipment located in the satellite coverage area is not affected and improves communication efficiency.
  • the method further includes: the terminal device determining the actual coverage status of the terminal device under the satellite, wherein the terminal device determines that the terminal device is under the satellite
  • the actual coverage status under the satellite specifically includes: the terminal equipment determines the actual coverage status of the terminal equipment under the satellite based on the signal strength of the current cell; or the terminal equipment determines the actual coverage status of the terminal equipment under the satellite based on the ephemeris information of the satellite and the terminal equipment
  • the location information of the terminal device is used to determine the actual coverage of the terminal device under the satellite.
  • the terminal device can determine its actual coverage status under the satellite, so as to determine whether the coverage status of the terminal device indicated by the satellite coverage information matches the actual coverage status of the terminal device.
  • the method further includes: the terminal device receiving second indication information from the network device; and the terminal device determining the satellite coverage information based on the second indication information. Whether the indicated coverage status of the terminal device matches the actual coverage status of the terminal device under the satellite.
  • the second aspect provides a communication method, which can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method includes: the terminal device receives energy-saving parameters from the network device, and the energy-saving parameters are used for the terminal device to enter the energy-saving mode; when the terminal device is located in the coverage area of the satellite at the first time after entering the energy-saving mode, the terminal device The terminal device sends a registration request message to the network device.
  • the terminal device when the terminal device is located in the satellite coverage area for the first time, it sends a registration request message to the network device.
  • the registration request message is used to trigger the network device to update satellite coverage information.
  • the network device can promptly update the satellite coverage information, so that the reachability of the terminal device is not affected when it is located in the satellite coverage area, thereby improving communication efficiency. .
  • the network device instructs the terminal device to enter the energy-saving mode at a certain time (recorded as the second time) through the energy-saving parameter.
  • the energy-saving parameter can implicitly indicate that the network device believes that the terminal device is located in the non-coverage area of the satellite after the second time. . If the terminal device finds that it is actually located in the coverage area of the satellite at the first time after the second time, the terminal device can consider that the coverage status of the satellite indicated by the satellite coverage information saved by the network device is different from the actual coverage status of the terminal device. Mismatch. In this case, the terminal device triggers the network device to update the satellite coverage information through the registration request message, so that when the terminal device is located in the satellite coverage area, its reachability is not affected, thereby improving communication efficiency.
  • the terminal device when the terminal device is located in the satellite coverage area at the first time, the terminal device may not enter the energy saving mode according to the energy saving parameter.
  • the registration request message includes location information of the terminal device, the location information of the terminal device is used to update satellite coverage information, and the satellite coverage information is used to indicate the terminal device The time within the satellite's coverage area.
  • the terminal device can carry location information in the registration request message, so that the network device can update the satellite coverage information of the terminal device based on the location information, avoiding the network device from obtaining the location information of the terminal device through additional processes, thereby improving communication efficiency, saving resources.
  • the registration request message further includes third indication information, and the third indication information is used to instruct the network device to update the satellite coverage information.
  • the method further includes: the terminal device receives data from the network device. of information indicating that first time.
  • the method further includes: the terminal device determines to be located in the coverage area of the satellite at the first time, wherein the terminal device determines to be located in the coverage area of the satellite at the first time.
  • the coverage area of the satellite specifically includes: the terminal device determines that it is located in the coverage area of the satellite at the first time based on the signal strength at the first time; or the terminal device determines that it is located in the coverage area of the satellite based on the location information of the terminal device and the star of the satellite.
  • the calendar information determines that the satellite is located in the coverage area of the satellite at the first time.
  • the method further includes: the terminal device receiving fourth instruction information from the network device; and the terminal device determining, based on the fourth instruction information, that the first Whether the time is within the coverage area of the satellite.
  • the method further includes: when the terminal device enters the coverage area of the satellite from the non-coverage area of the satellite, the terminal device sends a message to the network device. Registration request message.
  • the terminal device When the terminal device enters the coverage area of the satellite from the non-coverage area of the satellite, it can send a registration request message to the network device.
  • the registration request message is used to trigger the network device to update the satellite coverage information so that the network device can sense the coverage status of the terminal device. changes (that is, from satellite non-coverage to satellite coverage, that is, from satellite non-coverage area to satellite coverage area), to prevent the terminal equipment from being located in the satellite coverage area, because the network equipment does not update the satellite coverage information in real time, causing the terminal to The device cannot receive downlink data.
  • this solution can be implemented in combination with the solution provided by the above-mentioned second aspect, or can be implemented independently, that is, the solution can be implemented independently without relying on the solution provided by the above-mentioned second aspect.
  • a communication method is provided, which method can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method includes: when a terminal device is located in a non-coverage area of a satellite, it determines whether there is an available wireless access technology; when there is an available wireless access technology, the terminal device selects to attach to the available wireless access technology. Enter the cell corresponding to the technology; the terminal device sends a registration request message to the network device.
  • the terminal device determines whether there is an available wireless access technology in the non-coverage area of the satellite (that is, when the satellite access technology is unavailable), so as to attach to the available wireless access technology. corresponding neighborhood.
  • a terminal device located in a satellite non-coverage area can access the network through other wireless access technologies and send a registration request message to the network device.
  • the registration request message is used to trigger the network device to update the network coverage information of the terminal device.
  • This network coverage information is used to indicate the time when the terminal device is within the network coverage area.
  • the terminal device can still communicate with the network device even if it is located in an area not covered by the satellite, thereby improving communication efficiency and user experience.
  • the cell corresponding to the satellite and the cell corresponding to the wireless access technology belong to different registration areas.
  • the terminal device since the cell corresponding to the satellite and the cell corresponding to the wireless access technology belong to different registration areas, the terminal device will trigger registration when attaching from the cell corresponding to the satellite to the cell corresponding to the wireless access technology. process so that the network device can detect changes in the coverage status of the terminal device in a timely manner, so that the reachability of the terminal device is not affected.
  • the method further includes: the terminal device receiving the fifth instruction information from the network device; when the terminal device is located in a non-coverage area of the satellite, determine whether The existence of available wireless access technology includes: the terminal device determines whether there is an available wireless access technology based on the fifth indication information when it is located in a non-coverage area of the satellite.
  • the registration request message includes sixth instruction information, the sixth instruction information is used to instruct the network device to update the network coverage information of the terminal device, and the network coverage information Used to indicate the time when the terminal device is located in the coverage area of the network.
  • the registration request message includes location information of the terminal device.
  • the terminal device can carry location information in the registration request message, so that the network device can update the network coverage information of the terminal device based on the location information, avoiding the need for the network device to obtain the location information of the terminal device through additional processes, thereby reducing Signaling overhead and improve communication efficiency.
  • the fourth aspect provides a communication method, which can be executed by a network device, or can also be executed by a component of the network device (such as a chip or a circuit), which is not limited.
  • a component of the network device such as a chip or a circuit
  • the following description takes execution by a network device as an example.
  • the method includes: the network device sends satellite coverage information to the terminal device, and the satellite coverage information is used to indicate that the terminal device is located The time of the satellite's coverage area; the network device receives a registration request message from the terminal device, and the registration request message is triggered based on the satellite coverage information; the network device updates the satellite coverage information according to the registration request message.
  • the network device sends satellite coverage information to the terminal device, and after the network device receives the registration request message triggered by the satellite coverage information, the network device updates the satellite coverage information.
  • the network equipment can be updated with satellite coverage information in a timely manner, so that the reachability of the terminal equipment is not affected when it is located in the satellite coverage area, thereby improving communication efficiency.
  • the registration request message is triggered based on the satellite coverage information, which means that the terminal device sends the registration request message to the network device based on the satellite coverage information. For example, the terminal device determines whether the coverage status indicated by the satellite coverage information matches the actual coverage status of the terminal device under the satellite. If they do not match, the terminal device sends the registration request message to the network device.
  • the fifth aspect provides a communication method, which can be executed by a network device, or can also be executed by a component of the network device (such as a chip or a circuit), which is not limited.
  • a component of the network device such as a chip or a circuit
  • the following description takes execution by a network device as an example.
  • the method includes: the network device sends an energy-saving parameter to the terminal device, and the energy-saving parameter is used to instruct the terminal device to enter the energy-saving mode; the network device receives a registration request message from the terminal device, and the registration request message is triggered based on the energy-saving parameter; The network device updates the satellite coverage information according to the registration request message.
  • the registration request message includes the location information of the terminal device; the network device updates the satellite coverage information according to the registration request message, including: the network device updates the satellite coverage information according to the registration request message.
  • the registration request message updates the satellite coverage information through the location information of the terminal device.
  • the network device can obtain the location information of the terminal device from the registration request message.
  • the location information includes, for example, the geographical location and/or trajectory information of the terminal device (such as the future trajectory of the terminal device), which can avoid the need for the network device to pass Other additional processes obtain the location information of the terminal device, thereby reducing signaling overhead and improving communication efficiency.
  • the network device updates the satellite coverage information according to the registration request message, including: the network device determines that the satellite accessed by the terminal device is a satellite with discontinuous coverage, Update this satellite coverage information.
  • the network device when the satellite accessed by the terminal device is a satellite with discontinuous coverage, the network device updates the satellite coverage information. Instead of updating the satellite coverage information of all terminal devices, thereby saving resources, for example, the network device can obtain the location information of the terminal device from the access network device and update the satellite coverage information of the terminal device.
  • the registration request message includes first indication information, and the first indication information is used to instruct the network device to update the satellite coverage information.
  • the method further includes: the network device sending second indication information to the terminal device, the second indication information being used to instruct the terminal device to use the satellite coverage information If the indicated coverage status of the terminal device does not match the actual coverage status of the terminal device under the satellite, the network device is notified.
  • a sixth aspect provides a communication method, which can be executed by a terminal device, or can also be executed by a component (such as a chip or circuit) of the terminal device, which is not limited.
  • a component such as a chip or circuit
  • the following description takes execution by a terminal device as an example.
  • the method includes: when the satellite accessed by the terminal device is a satellite with discontinuous coverage, the network device allocates to the terminal device a registration area including a cell corresponding to a single wireless access technology; the network device sends a message to the terminal device.
  • the first message includes the registration area.
  • the network device allocates a registration area including a cell corresponding to a single wireless access technology to the terminal device.
  • the terminal device when the terminal device switches from a cell corresponding to the satellite access technology to other available access technologies In the cell, the terminal device will send a registration request message to trigger the registration area update.
  • the network device can update the network coverage information of the terminal device after receiving the registration request message, so that the reachability of the terminal device is not affected after it is attached to a cell corresponding to the available wireless access technology.
  • the method before the network device allocates a registration area of a cell including a single radio access technology to the terminal device, the method further includes: the network device receives a message from the terminal. Registration request message for the device.
  • the network device when the satellite accessed by the terminal device is a satellite with discontinuous coverage, allocates a cell including a single wireless access technology to the terminal device.
  • the registration area includes: according to the configuration information, the network device allocates a registration area including a cell of a single wireless access technology to the terminal device when the satellite accessed by the terminal device is a satellite with discontinuous coverage.
  • the method further includes: the network device determining that the satellite accessed by the terminal device is a satellite with discontinuous coverage.
  • the first message further includes seventh indication information, the seventh indication information is used to instruct the terminal device when it is located in a non-coverage area of the satellite, Determine whether available wireless access technology exists.
  • a communication method which method includes: the network device sends satellite coverage information to the terminal device, the satellite coverage information is used to indicate the time when the terminal device is located in the coverage area of the satellite; when the satellite coverage information indicates If the coverage status of the terminal device does not match the actual coverage status of the terminal device under the satellite, the terminal device sends a registration request message to the network device; the network device receives the registration request from the terminal device message; the network device updates the satellite coverage information according to the registration request message.
  • a communication method which method includes: a network device sends an energy-saving parameter to a terminal device, the energy-saving parameter is used to instruct the terminal device to enter an energy-saving mode; the terminal device receives the energy-saving parameter from the network device.
  • the terminal device sends a registration request message to the network device; the network device receives the registration request message from the terminal device; The network device updates the satellite coverage information according to the registration request message.
  • a ninth aspect provides a communication method, which method includes: when the network device determines that the satellite accessed by the terminal device is a satellite with discontinuous coverage, the network device allocates a single radio signal to the terminal device. Access the registration area of the cell of the technology; the network device sends a first message to the terminal device, where the first message includes the registration area. The terminal device receives the first message from the network device.
  • the method further includes: when the terminal device is located in a non-coverage area of the satellite, determine whether there is an available wireless access technology; In the case of wireless access technology, the terminal device is attached to the cell corresponding to the available wireless access technology; the terminal device sends a registration request message to the network device; the network device receives the registration request message from the terminal device; The network device updates the network coverage information of the terminal device according to the registration request message, and the network coverage information is used to indicate the time when the terminal device is within the network coverage range.
  • a communication method which method includes: the network device sends satellite coverage information to the access network device, the satellite coverage information is used to indicate the time when the terminal device is located in the coverage area of the satellite; the access network device Receive the satellite coverage information from the network device; when the coverage status of the terminal device indicated by the satellite coverage information does not match the actual coverage status of the terminal device under the satellite, the access network device A registration request message is sent to the network device; the network device receives the registration request message from the access network device; and the access network device updates the satellite coverage information according to the registration request message.
  • the network device can also perform any implementation method of the above fourth to sixth aspects.
  • a communication system in an eleventh aspect, includes a network device and an access network device.
  • the network device is used to send satellite coverage information to the access network device.
  • the satellite coverage information is used to instruct the terminal device. The time when it is located in the coverage area of the satellite; the access network equipment is used to receive the satellite coverage information from the network equipment; the coverage status of the terminal equipment indicated by the satellite coverage information is consistent with the coverage status of the terminal equipment under the satellite If the actual coverage status does not match, send a registration request message to the network device; the network device is also used to receive the registration request message from the access network device; and update the satellite coverage information according to the registration request message.
  • the network device also has the function of implementing any implementation method of the fourth aspect to the sixth aspect.
  • a twelfth aspect provides a communication device, which may be a terminal device or a chip for the terminal device.
  • the device has the function of realizing any implementation method of the above-mentioned first aspect to the third aspect.
  • This function can be implemented by hardware, or it can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • a communication device which may be a network device or a chip for a network device.
  • the device has the function of realizing any implementation method of the fourth aspect to the sixth aspect. This function can be implemented by hardware, or it can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • a fourteenth aspect provides a communication device, which device includes: a memory for storing a program; a processor for executing the program stored in the memory.
  • the processor is configured to execute the first aspect. to any method provided in the sixth aspect.
  • this application provides a processor for executing the methods provided in the above aspects.
  • the process of sending the above information and obtaining/receiving the above information in the above method can be understood as the process of the processor outputting the above information, and the process of the processor receiving the input above information.
  • the processor When outputting the above information, the processor outputs the above information to the transceiver to be transmitted by the transceiver. After the above information is output by the processor, it may also need to undergo other processing before reaching the transceiver.
  • the transceiver obtains/receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the above information, the above information may need to undergo other processing before being input to the processor.
  • the receiving request message mentioned in the foregoing method can be understood as the processor receiving input information.
  • the above-mentioned processor may be a processor specifically designed to perform these methods, or may be a processor that executes computer instructions in a memory to perform these methods, such as a general-purpose processor.
  • the above-mentioned memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated on the same chip as the processor, or can be separately provided on different chips.
  • ROM read-only memory
  • a computer-readable storage medium stores a program code for device execution.
  • the program code includes a method for executing any one of the methods provided in the above-mentioned first to sixth aspects.
  • a seventeenth aspect provides a computer program product containing instructions, which when the computer program product is run on a computer, causes the computer to execute any of the methods provided in the first to sixth aspects.
  • An eighteenth aspect provides a chip.
  • the chip includes a processor and a communication interface.
  • the processor reads instructions stored in the memory through the communication interface and executes any of the methods provided in the first to sixth aspects.
  • the chip may also include a memory, in which instructions are stored, and the processor is used to execute the instructions stored in the memory.
  • the processor is used to execute the above-mentioned first step. Any method provided by the first aspect to the sixth aspect.
  • a nineteenth aspect provides a communication system, which includes a terminal device for performing the method shown in the first aspect, and a network device used for performing the method shown in the fourth aspect.
  • a twentieth aspect provides a communication system, which includes a terminal device for performing the method shown in the second aspect, and a network device used for performing the method shown in the fifth aspect.
  • a twenty-first aspect provides a communication system, which includes a terminal device for performing the method shown in the third aspect, and a network device used for performing the method shown in the sixth aspect.
  • Figure 1 is a schematic diagram of a network architecture suitable for embodiments of the present application.
  • Figure 2 is a schematic diagram of another network architecture suitable for embodiments of the present application.
  • Figure 3 is a schematic diagram of another network architecture suitable for embodiments of the present application.
  • Figure 4 is a schematic diagram of a satellite communication scenario.
  • Figure 5 is a schematic diagram of a non-continuous coverage scenario of a satellite.
  • Figure 6 shows an exemplary flowchart of a communication method 600 provided by an embodiment of the present application.
  • Figure 7 shows an exemplary flow chart of another communication method 700 provided by an embodiment of the present application.
  • Figure 8 shows an exemplary flowchart of yet another communication method 800 provided by an embodiment of the present application.
  • Figure 9 shows an exemplary flowchart of yet another communication method 900 provided by an embodiment of the present application.
  • Figure 10 shows an exemplary flowchart of yet another communication method 1000 provided by an embodiment of the present application.
  • Figure 11 shows an exemplary flowchart of yet another communication method 1100 provided by an embodiment of the present application.
  • Figure 12 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • Figure 13 is a schematic block diagram of a communication device provided by another embodiment of the present application.
  • Figure 14 is a schematic block diagram of a communication device provided by yet another embodiment of the present application.
  • the technical solutions provided by this application can be applied to various communication systems, such as fifth generation (5th generation, 5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division Duplex (frequency division duplex, FDD) system, LTE time division duplex (TDD) system, etc.
  • the technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system.
  • the technical solution provided by this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine type Communication (machine type communication, MTC), and Internet of Things (Internet of things, IoT) communication systems or other communication systems.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • MTC machine type Communication
  • Internet of Things Internet of things, IoT
  • the system 100 includes a terminal device and a network device.
  • the network device is used to send satellite coverage information to the terminal device, and the satellite coverage information is used to indicate the time when the terminal device is located in the coverage area of the satellite; the terminal device is used to receive satellite coverage from the network device. Satellite coverage information; the terminal device is also used to send a registration to the network device when the coverage status of the terminal device indicated by the satellite coverage information does not match the actual coverage status of the terminal device under the satellite. Request message. The network device is also used to receive a registration request message from the terminal device and update the satellite coverage information according to the registration request message.
  • the terminal device obtains satellite coverage information from the network device, and when the coverage status of the terminal device indicated by the satellite coverage information does not match the actual coverage status of the terminal device, Send a registration request message to the network device.
  • the registration request message can trigger the network device to update the satellite coverage information.
  • the communication system 100 shown in Figure 1 can be applied to the fifth generation (5th generation, 5G) network architecture shown in Figure 2 and/or Figure 3.
  • the terminal device in the communication system 100 can correspond to The UE in FIG. 2 or FIG. 3 and the network device in the communication system 100 may correspond to the AMF in FIG. 2 or FIG. 3 .
  • the communication system 100 shown in Figure 1 can also be applied to the fourth generation (4th generation, 4G) network architecture.
  • the terminal equipment in the communication system 100 can correspond to the UE in 4G.
  • the network equipment can correspond to the mobile management entity (mobile management entity, MME) in 4G.
  • the communication system 100 shown in Figure 1 can also be applied to future network architectures, such as the sixth generation (6th generation, 6G) network architecture, etc., and the embodiments of this application do not specifically limit this.
  • 5G system framework based on point-to-point interfaces and 5G based on service-based interfaces in conjunction with Figure 2 and Figure 3. system framework.
  • Figure 2 shows a schematic architectural diagram of a 5G system applicable to the embodiments of this application.
  • Figure 2 is a schematic diagram of the 5G network architecture based on point-to-point interfaces.
  • the network architecture may include but is not limited to the following network elements (also known as functional network elements, functional entities, nodes, devices, etc.):
  • Wired wireless
  • R radio access network
  • AMF access and mobility management function
  • SMF session management function
  • UPF User plane function
  • PCF policy control function
  • UDM unified data management
  • AF AF network element
  • DN data network
  • NSSF network slice selection function
  • AUSF authentication server function
  • UDM unified data management
  • BSF BSF network element
  • UDR unified data repository
  • User equipment can be called terminal equipment (terminal equipment), terminal device, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (mobile terminal, MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communications equipment, user agent or user device.
  • the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device, a vehicle-mounted device, etc. with wireless connectivity capabilities.
  • terminals can be: mobile phones, tablets, computers with wireless transceiver functions (such as laptops, handheld computers, etc.), mobile Internet devices (mobile internet device, MID), virtual reality (virtual reality, VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical Terminals, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless Telephone, session initiation protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device or connection Other processing equipment to wireless modems, vehicle-mounted equipment, wearable devices, terminal equipment in the 5G network or terminal equipment in the future evolved public land mobile communication network (public land mobile network, PLMN), etc.
  • mobile Internet devices mobile internet device, MID
  • virtual reality virtual reality
  • VR virtual reality
  • AR augmented reality
  • wireless terminals in industrial control wireless terminals in self-driv
  • the terminal device can also be a terminal device in an 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-computer interconnection and object interconnection.
  • IoT technology can achieve massive connections, deep coverage, and terminal power saving through narrowband (NB) technology, for example.
  • NB narrowband
  • terminal equipment can also include smart printers, train detectors, etc. Its main functions include collecting data (some terminal equipment), receiving control information and downlink data from network equipment, and sending electromagnetic waves to transmit uplink data to network equipment.
  • the user equipment can be any device that can access the network. Terminal equipment and access network equipment can communicate with each other using some air interface technology.
  • the user equipment can be used to act as a base station.
  • user equipment may act as a scheduling entity that provides sidelink signals between user equipments in V2X or D2D, etc.
  • V2X or D2D a scheduling entity that provides sidelink signals between user equipments in V2X or D2D, etc.
  • cell phones and cars use sidelink signals to communicate with each other.
  • Cell phones and smart home devices communicate between each other without having to relay communication signals through base stations.
  • Radio access network (R)AN) equipment used to provide network access functions for authorized user equipment in a specific area, and can use different services according to the level of user equipment, business needs, etc. Quality transmission tunnel.
  • (R)AN can manage wireless resources, provide access services to user equipment, and then complete the forwarding of control signals and user equipment data between user equipment and the core network.
  • (R)AN can also be understood as a base station in a traditional network.
  • the access network device in the embodiment of the present application may be any communication device with wireless transceiver functions used to communicate with user equipment.
  • the access network equipment includes but is not limited to evolved Node B (eNB) or 5G, such as NR, gNB in the system, or transmission point (TRP or TP), one of the base stations in the 5G system Or a group (including multiple antenna panels) of antenna panels, or it can also be a network node that constitutes a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc.
  • eNB evolved Node B
  • 5G such as NR, gNB in the system, or transmission point (TRP or TP)
  • TRP or TP transmission point
  • BBU baseband unit
  • DU distributed unit
  • gNB may include centralized units (CUs) and DUs.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB, and DU implements some functions of gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implementing radio resource control (RRC) and packet data convergence protocol (PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, media access control (MAC) layer and physical (physical, PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the access network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into access network equipment in the access network (radio access network, RAN), or the CU can be divided into access network equipment in the core network (core network, CN). This application does not Make limitations.
  • wireless access network equipment can also be called wireless satellite access network site (or wireless satellite access network equipment, wireless satellite access network), satellite access network site (or satellite access network equipment, Satellite access network) or satellite network site (or satellite network equipment, satellite network), which is not limited in the embodiments of the present application.
  • Satellite access networks can be deployed in a variety of ways. For example, the same PLMN has both a terrestrial 3GPP access network and a satellite 3GPP access network, and the two access networks have independent interfaces with the core network.
  • satellite access can also be called satellite backhaul.
  • the satellite may include all or part of the network access function, which is not limited in this application.
  • the satellite access network equipment can be understood as the equipment with partial functions of the base station on the satellite, and all relevant signaling and data processing of the access network are performed on the satellite.
  • the satellite access network equipment can be understood as equipment with partial functions of the base station on the satellite and equipment with partial functions of the base station on the ground.
  • Related signaling and data of the access network Processing occurs partly on the satellite and partly on the ground.
  • the satellite access network equipment can be understood as a base station on the ground. All relevant signaling and data processing of the access network are performed on the ground.
  • the satellite transparently transmits signaling and data between the terminal equipment and the satellite access network. .
  • UPF User plane function
  • QoS quality of service
  • user plane network elements can still be UPF network elements, or they can have other names, which are not limited in this application.
  • Access and mobility management function (AMF) network element The access and mobility management function network element is mainly used for mobility management and access management, etc., and can be used to implement MME functions in addition to session management. Other functions, such as access authorization/authentication and other functions.
  • the access and mobility management equipment may still be an AMF, or may have other names, which are not limited in this application.
  • Session management function (SMF) network element mainly used for session management, Internet protocol (IP) address allocation and management of user equipment, selection of manageable user plane functions, policy control and charging The endpoint of the functional interface and downstream data notification, etc.
  • IP Internet protocol
  • the session management network element can still be an SMF network element, or it can also have other names, which is not limited in this application.
  • PCF Policy control function
  • the policy control network element can still be a PCF network element, or it can also have other names, which is not limited in this application.
  • Application function used for data routing affected by applications, wireless access network open function network elements, interaction with the policy framework for policy control, etc.
  • application network elements can still be AF network elements, or they can have other names, which are not limited in this application.
  • Unified data management (UDM) network element used to process UE identification, access authentication, registration and mobility management, etc.
  • unified data management can still be a UDM network element, or it can also have other names. This application does not Make limitations.
  • AUSF Authentication server function
  • the authentication server functional network element can still be an AUSF network element, or it can also have other names, which is not limited in this application.
  • Network data analytics function network element: used to identify network slicing instances and load load level information of network slicing instances.
  • the network data analysis function enables NF consumers to subscribe or unsubscribe to periodic notifications and notify consumers when thresholds are exceeded.
  • network data analysis function network elements can still be NWDAF network elements, or they can have other names, which are not limited in this application.
  • DN Data network
  • DN is a network located outside the operator's network.
  • the operator's network can access multiple DNs.
  • a variety of services can be deployed on the DN, which can provide data and/or voice for terminal devices. Waiting for service.
  • DN is a private network of a smart factory.
  • the sensors installed in the workshop of the smart factory can be terminal devices.
  • the control server of the sensor is deployed in the DN, and the control server can provide services for the sensor.
  • the sensor can communicate with the control server, obtain instructions from the control server, and transmit the collected sensor data to the control server according to the instructions.
  • DN is the internal office network of a company.
  • the mobile phones or computers of employees of the company can be used as terminal devices.
  • the employees' mobile phones or computers can access information and data resources on the company's internal office network.
  • Nausf, Nnef, Npcf, Nudm, Naf, Namf, Nsmf, N1, N2, N3, N4, and N6 are interface serial numbers.
  • the meaning of these interface serial numbers can be found in the meaning defined in the 3GPP standard protocol, and is not limited here.
  • network elements can communicate with each other through the interfaces shown in the figure.
  • the UE and the AMF can interact through the N1 interface, and the interaction message can be called an N1 message (N1Message), for example.
  • N1Message N1 message
  • RAN and AMF can interact through the N2 interface, which can be used for sending non-access stratum (NAS) messages.
  • NAS non-access stratum
  • RAN and UPF can interact through the N3 interface, which can be used to transmit user plane data, etc.
  • SMF and UPF can interact through the N4 interface.
  • the N4 interface can be used to transmit information such as tunnel identification information of the N3 connection, data cache indication information, and downlink data notification messages.
  • UPF and DN can interact through the N6 interface, which can transmit user plane data, etc.
  • the relationship between other interfaces and each network element is shown in Figure 2. For the sake of simplicity, they will not be described in detail here.
  • FIG 3 it is a schematic diagram of the 5G network architecture based on point-to-point interfaces.
  • the functions of the network elements please refer to the introduction of the functions of the corresponding network elements in Figure 2, and will not be described again.
  • the main difference between Figure 3 and Figure 2 is that the interfaces between various network elements in Figure 3 are point-to-point interfaces, not service-oriented interfaces.
  • N7 The interface between PCF and SMF, used to deliver protocol data unit (PDU) session granularity and business data flow granularity control policy.
  • PDU protocol data unit
  • N15 The interface between PCF and AMF, used to deliver UE policies and access control related policies.
  • N5 The interface between AF and PCF, used for issuing application service requests and reporting network events.
  • N4 The interface between SMF and UPF, used to transfer information between the control plane and the user plane, including controlling the delivery of forwarding rules for the user plane, QoS control rules, traffic statistics rules, etc., and reporting of user plane information. .
  • N11 The interface between SMF and AMF, used to transfer PDU session tunnel information between RAN and UPF, transfer control messages sent to UE, transfer radio resource control information sent to RAN, etc.
  • N2 The interface between AMF and RAN, used to transmit wireless bearer control information from the core network side to the RAN.
  • N1 The interface between AMF and UE, independent of access, is used to deliver QoS control rules to UE, etc.
  • N8 The interface between AMF and UDM, used for AMF to obtain access and mobility management-related subscription data and authentication data from UDM, and for AMF to register UE's current mobility management-related information with UDM.
  • N10 The interface between SMF and UDM, used for SMF to obtain session management-related subscription data from UDM, and for SMF to register UE current session-related information with UDM.
  • N35 The interface between UDM and UDR, used by UDM to obtain user subscription data information from UDR.
  • N36 The interface between PCF and UDR, used for PCF to obtain policy-related contract data and application data-related information from UDR.
  • N12 The interface between AMF and AUSF, used by AMF to initiate the authentication process to AUSF, which can carry SUCI as a signature. appointment logo;
  • N13 The interface between UDM and AUSF, used by AUSF to obtain the user authentication vector from UDM to perform the authentication process.
  • the above network elements or functions can be network elements in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (for example, a cloud platform).
  • a platform for example, a cloud platform.
  • the network device is the access and mobility management network element AMF
  • the base station is the wireless access network RAN as an example.
  • Computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, tapes, etc.), optical disks (e.g., compact discs (CD), digital versatile discs (DVD)) etc.), smart cards and flash memory devices (e.g. erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • magnetic storage devices e.g., hard disks, floppy disks, tapes, etc.
  • optical disks e.g., compact discs (CD), digital versatile discs (DVD)
  • smart cards and flash memory devices e.g. erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.
  • Satellite communication technology refers to the technology in which wireless communication devices on the ground access the network through satellites, or the technology in which wireless communication devices on the ground communicate through satellites as relays. Compared with traditional mobile communication systems, satellite communications have wider coverage and can overcome natural geographical obstacles such as oceans, deserts, and mountains.
  • satellite communications can be integrated with the 5G communications system (the 5th-generation mobile communications system, 5GS).
  • 5G communications system the 5th-generation mobile communications system, 5GS.
  • the integration of satellite communications and 5GS can be divided into two scenarios.
  • the first scenario is: the satellite is accessed as 3GPP, and the UE accesses the 5G core network (5G core, 5GC) in 5GS through the satellite;
  • the second scenario is :
  • the satellite link serves as a backhaul link, and the UE communicates with the 5GC in 5GS through the backhaul link (for example, the backhaul link provides a bearer for N3 or N9).
  • Figure 4 is a schematic diagram of a scenario where satellite communications and 5GS are integrated.
  • the satellite can provide signal processing functions as a regenerative mode, or the satellite itself functions as an access network device, in which case the UE is directly connected to the 5GC through the satellite.
  • the satellite can be used as a transparent mode only for signal forwarding. In this case, after the UE connects to the satellite, it also needs to connect to the 5GC through the RAN (not shown in the figure).
  • satellites may have different coverage areas, motion characteristics, propagation delays, jitter, etc. due to different orbital heights.
  • satellites can be divided into geosynchronous satellites (geostationary equatorial orbit, GEO), low orbit satellites (low earth orbit, LEO) polar orbit constellations, medium orbit satellites (mid earth orbit, MEO) and other satellites ( Other SAT) etc.
  • Ephemeris information refers to some information related to satellite constellations, which is mainly used to indicate the height, speed, direction, and movement of satellites. Trajectory, or coverage, and corresponding information such as different times.
  • the network side can determine the location of the satellite at a certain point in time and the coverage range of the satellite based on the ephemeris information.
  • Some satellites will have discontinuous coverage, that is, the coverage area of the satellite is not continuous, or in other words, the satellite has coverage areas and non-coverage areas.
  • the coverage area here refers to what the satellite network (or signal) can cover.
  • Area, non-coverage area refers to the area that cannot be covered by the satellite network.
  • the hexagonal area in the diagram is the coverage area of the satellite, and the area outside the hexagon in the diagram is the non-coverage area of the satellite.
  • the UE connected to the satellite will switch between the coverage area and the non-coverage area. For example, if the UE is fixed at position 4 and the satellite moves from position 1 to position 2, the UE will enter the non-coverage area from the coverage area; for another example, the UE moves from position 4 to position 3, causing the UE to enter the non-coverage area from the coverage area. coverage area. It can be understood that the UE may switch between the coverage area and the non-coverage area due to the movement of both the UE and the satellite.
  • the time period during which the UE is located in the coverage area represents the time period from the current moment to when the UE leaves the coverage area, that is, the time period during which the UE can still be covered, or the period from the current moment until the UE enters the non-coverage area, that is, the time period during which the UE can still be covered. How long to leave the coverage area.
  • the duration of the UE being in the non-coverage area represents the duration from the time the UE enters the non-coverage area to the time it leaves the non-coverage area, or the duration from the time the UE leaves the coverage area to the next time it re-enters the coverage area.
  • Figure 6 shows an exemplary flowchart of the method 600 provided by the embodiment of the present application.
  • the terminal device when the terminal device finds that the coverage status of the terminal device indicated by the satellite coverage information provided by the network device does not match the actual coverage status of the terminal device under the satellite, the terminal device initiates registration with the network device. Process so that network equipment can update the satellite coverage information.
  • the network device sends satellite coverage information to the terminal device.
  • the terminal device receives the satellite coverage information from the network device.
  • the network device determines that the satellite accessed by the terminal device is a satellite with discontinuous coverage
  • the network device obtains the satellite coverage information of the terminal device, where the satellite coverage information is used to indicate that the terminal device is located in the coverage area of the satellite.
  • the satellite coverage information is used to indicate the time when the terminal device is located in the non-coverage area of the satellite. That is to say, the network device and the terminal device can determine according to the satellite coverage information during which time periods the terminal device is in the coverage area of the satellite and in which time periods it is in the non-coverage area of the satellite.
  • the satellite coverage information may be determined by the network device based on the ephemeris information of the satellite and the location information of the terminal device, or may be obtained by the network device from other network elements, which is not limited in this application. Or, in another possible implementation, the network device may not send the satellite coverage information to the terminal device, but may send instruction information to the terminal device.
  • the instruction information is used to instruct the terminal device to calculate the satellite coverage information according to the satellite ephemeris information and the terminal device.
  • the device location information generates satellite coverage information on the terminal device side, and the terminal device can determine the satellite coverage information on its own based on the instruction information. It can be understood that the location information of the terminal device may refer to the current location information of the terminal device. .
  • the network device may obtain the ephemeris information of the satellite from the access network device, or may obtain the ephemeris information of the satellite from other network elements or third-party entities, which is not limited here.
  • the satellites involved in the embodiments of this application may refer to a satellite network.
  • the satellite network includes one or more satellites, and the satellite network is used to provide access services for terminal devices. Therefore, “satellite” in the embodiments of this application can be replaced by “satellite network”.
  • the network device sends the satellite coverage information to the terminal device.
  • the network device sends the satellite coverage information to the terminal device through the access network device.
  • the network device may send the satellite coverage information to the terminal device during the registration process of the terminal device. For example, after the network device receives the registration request message from the terminal device and determines that the satellite accessed by the terminal device is a satellite with discontinuous coverage, the network device generates the satellite coverage information of the terminal device, and then sends the satellite coverage information to the terminal device. Send a registration acceptance message, and carry the satellite coverage information in the registration acceptance message.
  • the network device can generate the satellite coverage information according to the configuration information, and send the satellite coverage information to the terminal device through a non-access layer message, that is, the network device actively sends the satellite coverage information to the terminal device through a non-access layer message.
  • the satellite coverage information is, for example, sent to the terminal device through the UE Configuraiton Update (UCU) process in 5G.
  • UCU UE Configuraiton Update
  • This application describes how the network device sends satellite coverage information to the terminal device in this implementation method. The timing is not limited.
  • the network device may also send second indication information to the terminal device, where the second indication information is used to instruct the terminal device to If the coverage status of the terminal device indicated by the satellite coverage information does not match the actual coverage status of the terminal device under the satellite, notify the network device (or trigger the registration process), or the second indication
  • the information is used to instruct the terminal device to determine whether the coverage status of the terminal device indicated by the satellite coverage information matches the actual coverage status of the terminal device under the satellite.
  • the coverage state of the terminal device under the satellite includes that the terminal device is located in the coverage area of the satellite, and the terminal device is located in the non-coverage area of the satellite. It can be understood that in the embodiments of this application, "the terminal equipment is located in the non-coverage area of the satellite" can be replaced by "the terminal equipment is not located in the coverage area of the satellite.”
  • the communication between the network device and the terminal device in the embodiment of the present application may be direct communication between the network device and the terminal device, or indirect communication through other network elements (such as access network equipment).
  • the network device when the network device is sending satellite coverage information to the terminal device, it may mean that the network device sends the satellite coverage information to the terminal device through the access network device. The description will not be repeated in similar places in the future.
  • the network device that sends the satellite coverage information to the terminal device and the network device that the terminal device initiates the registration request process may be different.
  • the terminal device determines whether the coverage status of the terminal device indicated by the satellite coverage information matches the actual coverage status of the terminal device under the satellite.
  • the terminal device determines, based on the configuration information or the second instruction information from the network device, whether the coverage status of the terminal device indicated by the satellite coverage information is consistent with the actual coverage status of the terminal device under the satellite. Whether the coverage status matches.
  • the following is an exemplary description of two possible implementation methods for the terminal device to determine whether the coverage status of the terminal device indicated by the satellite coverage information matches the actual coverage status of the terminal device under the satellite.
  • the terminal device determines whether the coverage status of the terminal device indicated by the satellite coverage information matches the actual coverage status of the terminal device under the satellite. This means that the terminal device determines whether the coverage status of the terminal device indicated by the satellite coverage information matches. Whether the coverage status of the device at a certain time (it can be a certain moment or a certain time window) matches the actual coverage status of the terminal device at that time. For example, in one implementation, the terminal device determines whether the coverage status of the terminal device at the current moment indicated by the satellite coverage information matches the actual coverage status of the terminal device under the satellite at the current moment. An exemplary description of this implementation is given below.
  • the terminal device determines the actual coverage status under the satellite at the current moment. For example, the terminal device determines the actual coverage status of the terminal device under the satellite based on the signal strength of the current cell. Specifically, when the signal strength of the current cell of the terminal device is less than a set threshold, the terminal device determines that the terminal device is currently actually located in The non-coverage area of the satellite, that is, the terminal device is currently not actually within the satellite coverage area; when the signal strength of the current cell of the terminal device is greater than or equal to the set threshold, the terminal device determines that it is actually currently located in the coverage area of the satellite.
  • the terminal device determines the actual coverage status of the terminal device under the satellite at the current moment based on the ephemeris information of the satellite and the current location information of the terminal device, wherein the terminal device can obtain the coverage status from the broadcast of the access network device. Get the satellite's ephemeris information from the message.
  • the terminal device determines whether the current actual coverage status under the satellite matches the current coverage status of the terminal device indicated by the satellite coverage information. For example, when the terminal device is currently located in the coverage area of the satellite, but the satellite coverage information indicates that the terminal device is currently located in the non-coverage area of the satellite, the terminal device determines the current actual coverage status under the satellite, which is consistent with the satellite coverage information. The coverage status of the indicated end device does not match. For another example, when the terminal device is currently located in the coverage area of the satellite, and the satellite coverage information indicates that the terminal device is currently located in the coverage area of the satellite, the terminal device determines the current actual coverage status under the satellite, which is consistent with the satellite coverage information. The coverage status of the indicated end device matches.
  • the terminal device determines the current actual coverage status under the satellite, which is consistent with the satellite coverage. The coverage status of the end device indicated by the message does not match.
  • the terminal device determines whether the coverage status of the terminal device at a certain time in the future indicated by the satellite coverage information matches the actual coverage status of the terminal device at that time. For example, if the terminal device finds that the signal strength of the current cell is less than the set threshold, but the satellite coverage information indicates that the terminal device will be in the satellite coverage area within the next hour, the terminal device determines that the terminal device indicated by the satellite coverage information will be in the satellite coverage area in the future. The coverage status at a certain moment does not match the actual coverage status of the terminal device at that moment. Specifically, the terminal device can estimate the coverage status at a certain time in the future based on the satellite signal strength within a current period of time.
  • the terminal device estimates the coverage status at a certain time in the future based on changes in satellite signal strength within 10 minutes. For another example, the terminal device determines that the terminal device will enter the non-covered area of the satellite from the satellite's coverage area in 10 minutes based on the satellite's ephemeris information, as well as the geographical location or future trajectory information, but the satellite coverage information indicates that the terminal device will enter the satellite's non-coverage area in the next 30 minutes. are within the satellite coverage area. Then the terminal device determines that the coverage status of the terminal device at a certain time in the future indicated by the satellite coverage information does not match the actual coverage status of the terminal device at that time.
  • the embodiment of the present application does not limit the timing and number of times the terminal device performs S602.
  • the terminal device may periodically perform S602 according to a preset time interval after receiving the satellite coverage information from the network device.
  • the terminal device sends a registration request message to the network device.
  • the network device receives the registration request message from the terminal device.
  • the terminal device sends a registration request message to the network device.
  • the registration request message is used to trigger the network device to update the satellite coverage information of the terminal device.
  • the terminal device sends the registration request message to the network device through the access network device.
  • the network device corresponding to step S603 and step S601 may be the same network device, or may not be the same network device. That is to say, after the terminal device receives satellite coverage information from one network device in S601, it is possible that the terminal device sends a registration request message to another network device in S603.
  • the embodiment of this application is explained by taking the network device corresponding to S603 and S601 as the same network device as an example.
  • the network device that sends the satellite coverage information and the network device that receives the registration request message are not the same network device, then the network device that sends the satellite coverage information and the network device that receives the registration request message can be the same type of network. Devices can also be different types of network devices.
  • the registration request message can be a registration update request message or a mobile registration update request message in 5G, or it can be a tracking area update request message in 4G, or other messages in the future network system.
  • the registration process for the registration request message may be the registration process in 5G, the tracking area update process in 5G, or other processes in the future network system, which is not limited in this application.
  • the registration request message may include location information of the terminal device, where the location information is used by the network device to update satellite coverage information, or in other words, the location information is used by the network device to track the location of the terminal device.
  • the location information includes information on the current location of the terminal device and/or future movement trajectory.
  • the registration request message may also include first indication information, where the first indication information is used to instruct the network device to update the satellite coverage information. That is to say, the terminal device can implicitly instruct the network device to update the satellite coverage information through the registration request message. That is, when the network device determines that the satellite accessed by the terminal device is a satellite with discontinuous coverage, the network device updates the satellite coverage according to the registration request message.
  • the registration request message may also carry explicit first indication information to instruct the network device to update satellite coverage information.
  • the first indication information is used to indicate that the coverage status of the terminal device indicated by the satellite coverage information does not match the actual coverage status of the terminal device under the satellite.
  • the first indication information may be the location information of the terminal device, that is, the first indication information and the location information of the terminal device may be the same piece of information, or in other words, the terminal device may carry the terminal device in the registration request message.
  • the location information instructs the network device to update the satellite coverage information of the terminal device.
  • the network device updates satellite coverage information.
  • the network device After the network device receives the registration request message from the terminal device, it determines the location of the terminal device according to the registration request message, or the first indication information carried in the registration request message, or the location information of the terminal device carried in the registration request message. , update satellite coverage information.
  • the network device obtains the location information of the terminal device, and then updates the satellite coverage information based on the location information.
  • the network device can obtain the location information of the terminal device from the registration request message, or the network device can trigger the terminal device location reporting process to allow the terminal device to report the location information of the terminal device to the network device, or the network device can obtain the terminal device's location information from the access network device side. Device location information.
  • the network device updates the satellite coverage information based on the location information, which means that the network device re-determines the satellite coverage information based on the latest acquired location information of the terminal device and the ephemeris information of the satellite.
  • the network device can delete the old satellite coverage information.
  • the network device and the network device in step S601 may be different network entities.
  • the network device provides satellite coverage information to the terminal device, so that the terminal device initiates registration when it finds that the coverage status of the terminal device indicated by the satellite coverage information does not match the actual coverage status of the terminal device under the satellite. process.
  • Network devices can update satellite coverage information during the registration process.
  • network equipment can be timely aware of changes in the coverage status of terminal equipment. For example, the terminal device moves from the coverage area of the satellite to the non-coverage area of the satellite due to movement. If the satellite coverage information indicates that the terminal device is still in the non-coverage area of the satellite, the terminal device initiates a registration process so that the network device can update the satellite. Satellite coverage information avoids the situation where the terminal device is in the satellite coverage area but cannot obtain downlink data immediately.
  • the network device can detect changes in the coverage status of the terminal device in a timely manner, thereby ensuring that the accessibility of the terminal device is not affected, thereby improving Communication efficiency.
  • the network device does not need to frequently obtain the location information of the terminal device to sense changes in the coverage status of the terminal device, thereby saving resources.
  • Figure 7 shows an exemplary flowchart of the method 700 provided by the embodiment of the present application.
  • the terminal device when the terminal device finds that it is still in the satellite coverage area at a certain moment or time window after the time when it is about to enter the energy-saving mode, the terminal device initiates a registration process to the network device so that the network device updates the satellite coverage information.
  • the method 700 is illustratively described below with reference to each step in FIG. 7 .
  • S701 The network device sends energy-saving parameters to the terminal device.
  • the terminal device receives the energy saving parameter from the network device.
  • the network device determines the satellite coverage information based on the ephemeris information of the satellite and the location information of the terminal device.
  • the specific process and information about the satellite coverage information are For description, please refer to the description of the S601 part in the method 600, which will not be described again here.
  • the network device determines energy-saving parameters based on the satellite coverage information, and the energy-saving parameters are used for the terminal device to enter the energy-saving mode. Specifically, this energy-saving parameter is used for the terminal device to enter the energy-saving mode when entering the satellite non-coverage area.
  • this energy-saving parameter is used for the terminal device to enter the energy-saving mode when entering the satellite non-coverage area.
  • the terminal device enters the energy-saving mode, it can be understood that the terminal device enters the sleep state.
  • the terminal device When the terminal device is in the energy-saving mode, it no longer communicates with the network device.
  • Network equipment achieves energy-saving effects by allowing terminal equipment located in areas not covered by satellites to enter energy-saving mode.
  • the energy saving parameters may include periodic registration timer (periodic registration timer), activation time (active time), extended discontinuous reception (extended discontinuous reception, eDRX) parameters, etc.
  • the network device sends the energy saving parameter to the terminal device.
  • the network device sends the energy saving parameter to the terminal device through the access network device.
  • the network device can send the energy-saving parameters to the terminal device during the registration process of the terminal device. For example, after the network device receives the registration request message from the terminal device and determines that the satellite accessed by the terminal device is a satellite with discontinuous coverage, the network device generates satellite coverage information of the terminal device, and then based on the satellite The coverage information determines the energy-saving parameters, and sends a registration response message to the terminal device, and carries the energy-saving parameters in the registration response message. Alternatively, the network device may also send energy-saving parameters to the terminal device through non-access layer messages in other processes, which is not limited in this application.
  • the network device also sends information indicating a first time to the terminal device, where the first time is a moment or a time window after the terminal device enters the energy-saving mode.
  • the network device may also send fourth indication information to the terminal device.
  • the fourth indication information is used to instruct the terminal device to determine whether it is located in the coverage area of the satellite at the first time, or the fourth indication information is used to instruct the terminal device to determine whether it is located in the coverage area of the satellite at the first time. Instruct the terminal device to initiate the registration process when it is located in the coverage area of the satellite at the first time, or the fourth indication information is used to indicate that the energy-saving parameter is determined based on or caused by discontinuous satellite coverage, that is, the third
  • the four indication information may implicitly instruct the terminal device to determine whether it is in the satellite coverage area at the first time, and to trigger the registration process if it is in the satellite coverage area at the first time.
  • S702 The terminal device determines whether it is located in the coverage area of the satellite immediately after the terminal device enters the energy-saving mode.
  • the terminal device determines whether it is located in the coverage area of the satellite at the first time based on the configuration information or the fourth instruction information from the network device.
  • the embodiment of the present application does not limit the timing when the terminal device executes S702.
  • the terminal device determines whether it is located in the coverage area of the satellite at the first time; in another implementation, the terminal device determines whether it is located in the coverage area of the satellite before entering the energy-saving mode. (for example, 5 seconds before entering the energy-saving mode), determine whether it is located in the coverage area of the satellite at the first time; in another possible implementation, after the terminal device enters the energy-saving mode (for example, the terminal device at the first time) , determine whether it is located in the satellite coverage area at the first time.
  • the terminal device can determine whether it is located in the coverage area of the satellite at the first time based on the signal strength of the current cell. For example, before the terminal device enters the energy-saving mode, if the signal strength of the current cell is greater than a set threshold, the terminal device predicts that it will be located in the coverage area of the satellite at the first time. Alternatively, the terminal device determines or predicts whether the terminal device is located in the coverage area of the satellite at the first time based on the location information and ephemeris information.
  • the location information includes the geographical location and/or movement trajectory of the terminal device. This application does not limit this.
  • the terminal device sends a registration request message to the network device.
  • the network device receives the registration request message from the terminal device.
  • the terminal device determines that it is still in the coverage area of the satellite for the first time after entering the energy-saving mode
  • the terminal device The end device sends a registration request message to the network device.
  • the registration request message is used to trigger the network device to update the satellite coverage information of the terminal device.
  • the terminal device sends a registration request message to the network device through the access network device.
  • the registration request message may include location information of the terminal device, where the location information is used by the network device to update satellite coverage information, or in other words, the location information is used by the network device to track the location of the terminal device.
  • the location information may include the current geographical location and/or future movement trajectory of the terminal device.
  • the registration request message may also include third indication information, where the third indication information is used to instruct the network device to update the satellite coverage information, or the third indication information is used to instruct the terminal device to update the satellite coverage information after entering the energy-saving mode. is located in the satellite coverage area for the first time.
  • the third indication information may be the location information of the terminal device, that is, the third indication information and the location information of the terminal device may be the same piece of information, or in other words, the terminal device may carry the terminal device in the registration request message.
  • the location information instructs the network device to update the satellite coverage information of the terminal device.
  • the network device updates satellite coverage information.
  • S704 is similar to S604 in method 600, and will not be described again here for the sake of brevity.
  • the network device sends energy-saving parameters for entering the energy-saving mode to the terminal device, and the network device determines the energy-saving parameters based on the satellite coverage information of the terminal device.
  • the network device uses the energy-saving parameters to allow the terminal device to enter satellite non-coverage. The situation in the area is to enter the energy saving mode to save the resources of the terminal equipment. If the terminal device finds that it is still in the coverage area of the satellite at a certain time after entering the energy-saving mode, it means that the terminal device entered the energy-saving mode in the coverage area of the satellite, thus affecting the normal communication of the terminal device.
  • the terminal device can initiate a registration process so that the network device updates satellite coverage information and re-determines energy-saving parameters based on the updated satellite coverage information.
  • the network device can detect changes in the coverage status of the terminal device in a timely manner, ensuring that the reachability of the terminal device is not affected, thereby improving communication efficiency.
  • the network device can send both satellite coverage information and energy-saving parameters to the terminal device.
  • the terminal device determines the satellite coverage information. Whether the indicated coverage status of the terminal equipment matches the actual coverage status of the terminal equipment under the satellite, and whether it is located in the coverage area of the satellite immediately after entering the energy-saving mode. If the coverage status of the terminal device does not match the actual coverage status of the terminal device under the satellite, and/or the terminal device is located in the coverage area of the satellite at the first time, the terminal device sends a registration request message to the network device.
  • Figure 8 shows an exemplary flowchart of the method 800 provided by the embodiment of the present application.
  • the registration area allocated by the network device to the terminal device includes a cell corresponding to a single wireless access technology.
  • the terminal device When the terminal device is located in a non-coverage area of the satellite, it still determines whether there is an available wireless access technology through cell scanning. , when there is an available wireless access technology, attach to the cell corresponding to the available wireless access technology, and trigger the registration process, so that the network can sense the latest location of the terminal device so that the network device can update the network coverage of the terminal device. information.
  • the method 800 is illustratively described below with reference to each step in FIG. 8 .
  • the network device allocates a registration area including a cell corresponding to a single radio access technology to the terminal device.
  • the network device determines that the satellite accessed by the terminal device is a satellite with discontinuous coverage
  • the network device allocates a registration area to the terminal device.
  • the registration area only includes cells corresponding to a single wireless access technology, that is, , the cells included in the registration area correspond to the same wireless access technology, and the registration area does not include cells supporting other wireless access technologies.
  • the wireless access technologies include NR (low earth orbit satellite (LEO)), NR (mid earth orbit satellite (MEO)), NR (geostationary equatorial orbit (GEO)), etc. type of satellite access.
  • the network device sends a first message to the terminal device, where the first message includes the registration area.
  • the terminal device receives the first message from the network device.
  • the network device after the network device allocates a registration area to the terminal device, it sends the registration area to the terminal device through a first message.
  • the network device sends the first message to the terminal device through the access network device.
  • the network device may send the registration area to the terminal device during the registration process of the terminal device. For example, after receiving the registration request message from the terminal device, the network device determines whether the satellite accessed by the terminal device is a satellite with discontinuous coverage. If so, performs S801, and then sends a registration response message to the terminal device.
  • the registration response message includes the registration area. That is to say, in this scenario, the above-mentioned first message may be a registration response message.
  • the network device can generate the registration area according to the configuration information, and send it to the terminal device through a non-access layer message.
  • the registration area is prepared to be sent. This application does not limit the timing when the network device sends the satellite coverage information to the terminal device in this implementation manner.
  • the first message may also include fifth indication information, the fifth indication information being used to instruct the terminal device to determine whether there is an available wireless access technology when it is located in a non-coverage area of the satellite.
  • S803 when the terminal device is located in a satellite coverage area, determine whether there is an available wireless access technology.
  • the terminal device determines whether there is an available wireless access technology through cell scanning based on the configuration information or the fifth instruction information received from the network device. For example, the terminal device performs cell scanning according to preconfiguration, or performs cell scanning periodically, or performs cell scanning regularly.
  • the specific method is not limited in this application.
  • the terminal device is attached to the cell corresponding to the available wireless access technology.
  • the terminal device when there is an available wireless access technology, the terminal device is attached to a cell corresponding to the available wireless access technology. That is to say, when the terminal device is located in a satellite non-coverage area, if the terminal device finds that there is an available wireless access technology, the terminal device switches from the cell corresponding to the satellite to the cell corresponding to the available wireless access technology.
  • the terminal device sends a registration request message to the network device.
  • the network device receives the registration request message from the terminal device.
  • the terminal device after the terminal device is attached to an available wireless access technology, it sends a registration request message to the network device.
  • the terminal device sends the registration request message to the network device through the access network device.
  • the registration area allocated by the network device to the terminal device in S801 only includes cells corresponding to a single wireless access technology, the cells corresponding to the satellite and the cells corresponding to the wireless access technology belong to different registration areas. Therefore, After the terminal device switches from the cell corresponding to the original satellite access technology to the cell corresponding to the wireless access technology, it triggers the registration area update process by sending a registration request message to the network device.
  • the registration request message may be a mobile registration update request message in 5G, a tracking area update request message in 4G, or other messages in future network systems, which is not limited in this application.
  • the registration request message includes sixth indication information, the sixth indication information is used to instruct the network device to update the network coverage information of the terminal device, the network coverage information is used to indicate the time when the terminal device is located in the coverage area of the network, or Said that the network coverage information is used to indicate the time when the terminal device is located in the non-coverage area of the network.
  • the registration request message includes location information of the terminal device, where the location information is used by the network device to update the network coverage information of the terminal device, or in other words, the location information is used by the network device to track the location of the terminal device.
  • S806, the network device updates network coverage information.
  • the specific process is similar to S604 in method 600. The difference is that in S604, the network device updates the satellite coverage information of the terminal device, while in S806, the network device updates the network coverage information.
  • the network coverage information may be satellite coverage information of the terminal device.
  • the network device After the network device updates the network coverage information of the terminal device, it can generate energy-saving parameters based on the network coverage information.
  • the terminal device when the terminal device is located in the satellite coverage area, it still determines whether there is an available wireless access technology through cell scanning. If there is an available wireless access technology, it attaches to the available wireless access technology.
  • Technically corresponding community Since the registration area allocated by the network device to the terminal device only includes cells corresponding to a single wireless access technology, the terminal device must trigger the registration process after attaching to the cell corresponding to the available wireless access technology, so that the network device can The registration process updates the network coverage information of the terminal device.
  • terminal equipment in the non-coverage area of the satellite can be attached to cells corresponding to other available wireless access technologies, so that the terminal equipment can still communicate in the non-coverage area of the satellite, thereby improving communication efficiency.
  • method 800 can be implemented independently or in combination with method 600 and/or method 700.
  • the network device may send satellite coverage information, energy-saving parameters, and a registration area including cells corresponding to a single radio access technology to the terminal device through the same non-access layer message.
  • the terminal device may perform the method such as S602-S603 in method 600, or perform the solution such as S702-S703 in method 700, or perform the solution such as S803-S803 in method 800. S805 solution.
  • Figure 9 shows an exemplary flow chart of the method 900 provided by the embodiment of the present application.
  • Method 900 may be a possible implementation of method 600.
  • the terminal device in the method 600 is a UE and the network device is an AMF as an example.
  • the registration request message in the method 600 is a registration update request message as an example.
  • the UE sends a registration request message to the AMF.
  • the AMF receives the registration request message from the UE.
  • the AMF determines the satellite coverage information of the UE.
  • the AMF determines the satellite coverage information based on the ephemeris information of the satellite and the location information of the UE.
  • the specific implementation process is as follows: For a description of the satellite coverage information, please refer to the relevant description of the S601 part in the method 600, which will not be described again here.
  • the AMF sends a registration acceptance message to the UE, where the registration acceptance message includes the satellite coverage information.
  • the UE receives the registration accept message from the AMF.
  • S903 can be regarded as a possible implementation of S601 in method 600, and will not be described again here.
  • the UE determines whether the coverage status of the UE indicated by the satellite coverage information matches the actual coverage status of the UE under the satellite.
  • S905 The UE sends a registration update request message to the AMF.
  • the AMF receives the registration update request message from the UE.
  • the network device updates satellite coverage information.
  • the UE when the UE determines that the coverage status of the UE indicated by the satellite coverage information does not match the actual coverage status of the UE under the satellite, it sends a registration update request message to the AMF. After receiving the registration update request message from the UE, the AMF updates the satellite coverage information of the UE. It can be understood that S904-S906 are similar to S602-S604 of method 600, and for the sake of brevity, they will not be described in detail here.
  • the AMF sends a registration update accept message to the UE, where the registration update accept message carries the updated satellite coverage information.
  • the UE receives the registration update accept message from the AMF. It can be understood that, after the UE obtains the updated satellite coverage information from the registration update acceptance message, the UE can perform step S904 again.
  • method 900 is explained by applying the method in the embodiment of the present application to the 5G system as an example, but this embodiment can also be applied to other systems.
  • the AMF in method 900 can be replaced by MME;
  • the registration request message in S901 can be replaced by an attach request message or a tracking area update request message, and correspondingly, S903 can be replaced by an attach accept message.
  • the registration update request message in S905 can be replaced by a tracking area update request message, and correspondingly, S907 can be replaced by a tracking area update acceptance message.
  • Figure 10 shows an exemplary flowchart of the method 1000 provided by the embodiment of the present application.
  • Method 1000 may be a possible implementation of method 700.
  • the terminal device in the method 700 is a UE and the network device is an AMF as an example.
  • the registration request message in the method 700 is a registration update request message as an example.
  • the UE sends a registration request message to the AMF.
  • the AMF receives the registration request message from the UE.
  • the AMF determines the satellite coverage information of the UE.
  • the AMF determines energy saving parameters according to the satellite coverage information of the UE.
  • the AMF determines satellite coverage information based on the location information of the UE and the ephemeris information of the satellite, and then determines the energy saving parameters based on the satellite coverage information.
  • the specific process please refer to the description of S701 in method 700, which will not be described again here.
  • the AMF sends a registration acceptance message to the UE, where the registration acceptance message includes energy saving parameters.
  • the UE receives the registration accept message from the AMF.
  • S1004 can be regarded as a possible implementation of S701 in method 700, and will not be described again here.
  • S1005 The UE determines whether it is located in the coverage area of the satellite immediately after the UE enters the energy-saving mode.
  • the UE sends a registration update request message to the AMF.
  • the AMF receives the registration update request message from the UE.
  • AMF updates satellite coverage information.
  • the UE when the UE determines that the UE is located in the coverage area of the satellite at the first time, the UE sends a registration update request message to the AMF. After receiving the registration update request message from the UE, the AMF updates the satellite coverage information of the UE.
  • S1005-S1007 are similar to S702-S704 in method 700, and for the sake of simplicity, they will not be described in detail here.
  • the AMF updates the energy-saving parameters according to the updated satellite coverage information.
  • the AMF sends a registration update accept message to the UE, where the registration update accept message includes the updated energy saving parameters. It can be understood that, after the UE obtains the updated energy-saving parameters from the registration update acceptance message, S1005 can be performed again.
  • Figure 11 shows an exemplary flowchart of the method 1100 provided by the embodiment of the present application.
  • Method 1100 may be a possible implementation of method 800.
  • the terminal device in the method 800 is a UE and the network device is an AMF as an example.
  • the first message in the method 800 is a registration acceptance message
  • the registration request message in the method 800 is a mobile registration update request. The message is explained as an example.
  • the UE sends a registration request message to the AMF.
  • the AMF receives the registration request message from the UE.
  • the AMF allocates a registration area including a cell corresponding to a single radio access technology to the UE.
  • the AMF allocates a registration area to the UE, and the cells included in the registration area correspond to the same radio access technology.
  • the description of S801 in method 800 please refer to the description of S801 in method 800, which will not be described again here.
  • the AMF sends a registration acceptance message to the UE, where the registration acceptance message includes the registration area.
  • the UE receives the registration accept message from the AMF.
  • S1103 can be regarded as a possible implementation of S802 in method 800, and will not be described again here.
  • S1104 when the UE is located in a satellite coverage area, determine whether there is an available wireless access technology.
  • the UE attaches to the cell corresponding to the available radio access technology.
  • the UE sends a mobile registration update request message to the AMF.
  • the AMF receives the mobile registration update request message from the UE.
  • the AMF updates the network coverage information of the UE.
  • S1104-S1107 are similar to S803-S806 in method 800. For the sake of simplicity, they will not be described again here.
  • embodiments of the present application also provide corresponding devices, which include modules for executing corresponding modules in each of the above method embodiments.
  • the module can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above method embodiments are also applicable to the following device embodiments. Therefore, content that is not described in detail can be referred to the above method embodiments. For the sake of brevity, they will not be described again here.
  • FIG 12 is a schematic block diagram of the communication device 10 provided by the embodiment of the present application.
  • the device 10 includes a transceiver module 11 and/or a processing module 12 .
  • the transceiver module 11 can implement corresponding communication functions, and the processing module 12 is used to perform data processing, or in other words, the transceiver module 11 is used to perform operations related to receiving and sending, and the processing module 12 is used to perform other operations besides receiving and sending.
  • the transceiver module 11 may also be called a communication interface or communication unit.
  • the device 10 may also include a storage module 13, which may be used to store instructions and/or data, and the processing module 12 may read the instructions and/or data in the storage module, so that the device implements each of the foregoing. Actions of the device or network element in the method embodiment.
  • the device 10 may correspond to the terminal equipment in the above method embodiment (for example, the terminal equipment in Figures 6-8, or the UE in Figures 9-11), or a terminal equipment components (such as chips).
  • the device 10 can implement steps or processes corresponding to those performed by the terminal device in the above method embodiment, wherein the transceiver module 11 can be used to perform operations related to the transceiver of the terminal device in the above method embodiment, and the processing module 12 can be used to perform Operations related to processing of the terminal device in the above method embodiment.
  • the transceiver module 11 is used to receive satellite coverage information from the network device, and the satellite coverage information is used to indicate the time when the device is located in the coverage area of the satellite; the transceiver module 11 is also used to detect If the coverage status of the device indicated by the satellite coverage information does not match the actual coverage status of the device under the satellite, a registration request message is sent to the network device.
  • the device 10 can implement the steps or processes performed by the terminal device in method 600 or the UE in method 900 in the above method embodiment, wherein the transceiver module 11 is used to receive data from the network device.
  • the energy-saving parameters are used for the device to enter the energy-saving mode; the transceiver module 11 is also used to send a message to the network device when the device is located in the coverage area of the satellite immediately after entering the energy-saving mode. Registration request message.
  • the device 10 can implement the steps or processes performed by the terminal device in the method 700 or the UE in the method 1000 in the above method embodiment, wherein the processing module 12 is used to perform the processing on the satellite In the case of a non-covered area, determine whether there is an available wireless access technology; and, if there is an available wireless access technology, attach to the cell corresponding to the available wireless access technology; the transceiver module 11 is used to Send a registration request message to the network device.
  • the device 10 can implement the steps or processes performed by the terminal device in the method 800 or the UE in the method 1100 in the above method embodiment, wherein the processing module 12 is used to perform the processing on the terminal device.
  • the terminal device is assigned a registration area of a cell that includes a single wireless access technology; the transceiver module 11 is configured to send a first message to the terminal device, the first message Includes this registration area.
  • the device 10 may correspond to the network device in the above method embodiment (such as the network device in Figures 6 to 8, or the AMF in Figures 9 to 11), or a network device components (such as chips).
  • the device 10 can implement steps or processes corresponding to those performed by the network device in the above method embodiment, wherein the transceiver module 11 can be used to perform operations related to the transceiver of the network device in the above method embodiment, and the processing module 12 can be used to perform Operations related to processing of the network device in the above method embodiment.
  • the device 10 can implement the steps or processes performed by the network device in method 800 or the AMF in method 1100 in the above method embodiment, wherein the transceiver module 11 is used to send satellites to the terminal device.
  • Coverage information the satellite coverage information is used to indicate the time when the terminal device is located in the coverage area of the satellite and/or the time when it is located in the non-coverage area of the satellite;
  • the transceiver module 11 is also used to receive a registration request message from the terminal device , the registration request message is triggered based on the satellite coverage information;
  • the processing module 12 is configured to update the satellite coverage information according to the registration request message.
  • module may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) used to execute one or more software or firmware programs. processor, etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • processor such as a shared processor, a proprietary processor, or a group of processors
  • memory merged logic circuitry, and/or other suitable components to support the described functionality.
  • the device 10 can be specifically a terminal device in the above embodiments, and can be used to execute various processes and/or steps corresponding to the terminal device in the above method embodiments; or , the device 10 may be specifically a network device in the above embodiments, and may be used to execute various processes and/or steps corresponding to the network devices in each of the above method embodiments. To avoid duplication, they will not be described again here.
  • the device 10 of each of the above solutions has the function of realizing the corresponding steps performed by the equipment (such as terminal equipment, or network equipment) in the above method.
  • This function can be implemented by hardware, or it can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver module can be replaced by a transceiver (for example, the sending unit in the transceiver module can be replaced by a transmitter, and the receiving unit in the transceiver module can be replaced by a receiver.
  • other units, such as processing modules, etc. can be replaced by processors to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • transceiver module 11 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing module may be a processing circuit.
  • FIG. 13 is a schematic diagram of another communication device 20 according to an embodiment of the present application.
  • the device 20 includes a processor 21, which is used to execute computer programs or instructions stored in the memory 22, or read data/signaling stored in the memory 22, to perform the methods in each of the above method embodiments.
  • processors 21 there are one or more processors 21 .
  • the device 20 further includes a memory 22, which is used to store computer programs or instructions and/or data.
  • the memory 22 may be integrated with the processor 21 or may be provided separately.
  • the device 20 also includes a transceiver 23, which is used for receiving and/or transmitting signals.
  • the processor 21 is used to control the transceiver 23 to receive and/or transmit signals.
  • the device 20 is used to implement the operations performed by the terminal device in each of the above method embodiments.
  • the device 20 is used to implement the operations performed by the network device in each of the above method embodiments.
  • processors mentioned in the embodiments of this application can be a central processing module (central processing unit, CPU), or other general-purpose processor, digital signal processor (digital signal processor, DSP), application-specific integrated circuit (application specific integrated circuit (ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM). For example, RAM can be used as an external cache.
  • RAM includes the following forms: static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), Double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and direct Memory bus random access memory (direct rambus RAM, DR RAM).
  • processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate Or transistor logic devices, discrete hardware components, memory (memory module) can be integrated in the processor.
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • FIG. 14 is a schematic diagram of a chip system 30 provided by an embodiment of the present application.
  • the chip system 30 (or can also be called a processing system) includes a logic circuit 31 and an input/output interface 32.
  • the logic circuit 31 may be a processing circuit in the chip system 30 .
  • the logic circuit 31 can be coupled to the memory unit and call instructions in the memory unit, so that the chip system 30 can implement the methods and functions of various embodiments of the present application.
  • the input/output interface 32 can be an input/output circuit in the chip system 30, which outputs information processed by the chip system 30, or inputs data or signaling information to be processed into the chip system 30 for processing.
  • the chip system 30 is used to implement the operations performed by the network function virtualization orchestrator in each of the above method embodiments.
  • the logic circuit 31 is used to implement processing-related operations performed by the terminal device in the above method embodiment, such as the terminal device in the embodiment shown in Figures 6 to 8 or the UE in Figures 9 to 11. processing related operations; the input/output interface 32 is used to implement the sending and/or receiving related operations performed by the terminal device in the above method embodiment, such as the terminal device in the embodiment shown in Figures 6 to 8 or Transmitting and/or receiving related operations performed by the UE in Figures 9 to 11.
  • the chip system 30 is used to implement the operations performed by the network device in each of the above method embodiments.
  • the logic circuit 31 is used to implement processing-related operations performed by the network device in the above method embodiment, such as the network device in the embodiment shown in Figures 6 to 8 or the AMF execution in Figures 9 to 11 processing related operations;
  • the input/output interface 32 is used to implement the sending and/or receiving related operations performed by the virtual infrastructure manager in the above method embodiment, such as in the embodiment shown in Figures 6 to 8
  • the network device or the AMF in Figures 9 to 11 performs sending and/or receiving related operations.
  • Embodiments of the present application also provide a computer-readable storage medium on which computer instructions for implementing the methods executed by the device in each of the above method embodiments are stored.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the terminal device in each embodiment of the above method.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the network device in each embodiment of the above method.
  • Embodiments of the present application also provide a computer program product, which includes instructions.
  • the instructions are executed by a computer, the methods executed by devices (such as terminal devices and network devices) in the above method embodiments are implemented.
  • An embodiment of the present application also provides a communication system, including the aforementioned terminal device and network device.
  • the disclosed devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer may be a personal computer, a server, or a network device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated therein.
  • the available media may be magnetic media (such as floppy disks, hard disks, magnetic tapes), optical media (such as DVDs), or semiconductor media (such as solid state disks (SSD)).
  • the aforementioned available media include but Not limited to: U disk, mobile hard disk, read-only memory (ROM), random access memory (random access memory)

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Abstract

本申请提供了一种通信方法、装置和系统，该方法可以包括：终端设备接收来自网络设备的卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于卫星的覆盖区域的时间；在该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配的情况下，该终端设备向该网络设备发送注册请求消息。通过上述方案，可以在终端设备的覆盖状态发生变化的情况下，及时让网络设备更新卫星覆盖信息，以便终端设备在位于卫星覆盖区域的情况下，其可达性不受影响。

Description

通信方法、装置和系统
本申请要求于2022年07月29日提交中国专利局、申请号为202210904138.9、申请名称为“通信方法、装置和系统”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、装置和系统。
背景技术
基于经济成本的考虑，一些卫星可能会存在非连续性覆盖的情况，即连接卫星网络的终端设备可能会有部分时间进入卫星的非覆盖区域，从而无法连接到网络。
在卫星的非覆盖区域，终端设备将处于不可达的状态，可以通过让终端设备和网络设备在终端设备位于卫星的非覆盖区域的时间内不发起相互之间的通信，以达到节能的效果。然而，在一些情况下，网络设备并不能及时确定终端设备在卫星下的覆盖状态，尤其是移动状态下的终端设备，由于网络设备无法及时获取终端设备的移动位置信息，不能及时更新终端设备的卫星覆盖信息，从而使得网络设备难以确定终端设备的覆盖状态，导致与终端设备之间的通信效率受到影响，从而影响用户体验。
发明内容
本申请提供了一种通信方法、装置和系统，可以使得网络设备及时感知终端设备在卫星下的覆盖状态发生了变化，从而提高网络设备和终端设备之间的通信效率。
第一方面，提供了一种通信方法，该方法可以由终端设备执行，或者，也可以由终端设备的组成部件(例如芯片或者电路)执行，对此不作限定。为了便于描述，下面以由终端设备执行为例进行说明。
该方法包括：终端设备接收来自网络设备的卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于卫星的覆盖区域的时间；在该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配的情况下，该终端设备向该网络设备发送注册请求消息。
在上述方案中，终端设备从网络设备获取卫星覆盖信息，并在卫星覆盖信息所指示的终端设备的覆盖状态与终端设备实际的覆盖状态不匹配的情况下，向网络设备发送注册请求消息。该注册请求消息可以触发网络设备更新该卫星覆盖信息，或者说，该注册请求消息可以隐性指示该网络设备更新该卫星覆盖信息。通过上述方案，可以在终端设备的覆盖状态发生变化的情况下，及时让网络设备更新卫星覆盖信息，以便终端设备在位于卫星覆盖区域的情况下，其可达性不受影响，即可以防止在终端设备位于卫星覆盖区域的情况下，由于网络设备没有即时更新卫星覆盖信息而不能及时传输下行数据的情况，从而提高通信效率以及用户体验。例如，终端设备由于移动从卫星的非覆盖区域进入了卫星的覆盖区域，即终端设备当前处于可达的状态，然而网络设备的卫星覆盖信息指示终端设备当前位于卫星的非覆盖区域，即网络设备认为终端设备当前仍处于不可达的状态，如果网络设备没有及时更新卫星覆盖信息的话，将导致下行数据无法发送给终端设备，导致通信效率受到影响。而通过上述方案，可以使网络设备更新卫星覆盖信息，从而可以使得终端设备的可达性不受影响，提高通信效率。
结合第一方面，在第一方面的某些实现方式中，该注册请求消息包括该终端设备的位置信息，该位置信息用于更新该卫星覆盖信息。
在上述方案中，终端设备可以在注册请求消息中携带位置信息，以便网络设备可以根据该位置信息更新终端设备的卫星覆盖信息，避免网络设备通过额外的流程获取终端设备的位置信息，从而减少信令开销，提高通信效率。
结合第一方面，在第一方面的某些实现方式中，该注册请求消息包括第一指示信息，该第一指示信息用于指示该网络设备更新该卫星覆盖信息。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：该终端设备确定该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配，其中，该确定方法具体包括：该终端设备确定该卫星覆盖信息指示该终端设备当前位于该卫星的非覆盖区域，以及该终端设备当前实际位于该卫星的覆盖区域。
在上述方案中，在终端设备位于卫星的覆盖区域，但卫星覆盖信息指示终端设备位于卫星的非覆盖区域的情况下，终端设备确定卫星覆盖信息所指示的终端设备的覆盖状态与卫星下的实际的覆盖状态不匹配，在这种情况下，终端设备向网络设备发送注册请求消息。也就是说，网络设备原本保存的卫星覆盖信息指示终端设备位于卫星的非覆盖区域，因此网络设备会认为终端设备处于不可达状态，因此不会向终端设备传输下行数据，而通过上述方案可以让网络设备及时更新卫星覆盖信息，从而使得位于卫星覆盖区域的终端设备的可达性不受影响，提供通信效率。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：该终端设备确定该终端设备在该卫星下的实际的覆盖状态，其中，该终端设备确定该终端设备在该卫星下的实际的覆盖状态，具体包括：该终端设备根据当前小区的信号强度，确定该终端设备在该卫星下的实际的覆盖状态；或者，该终端设备根据该卫星的星历信息和该终端设备的位置信息，确定该终端设备在该卫星下的实际的覆盖情况。
通过上述方案，终端设备可以确定自身在卫星下的实际的覆盖状态，以便判断卫星覆盖信息所指示的终端设备的覆盖状态与终端设备实际的覆盖状态是否匹配。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：该终端设备接收来自该网络设备的第二指示信息；该终端设备根据该第二指示信息，判断该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态是否匹配。
第二方面，提供了一种通信方法，该方法可以由终端设备执行，或者，也可以由终端设备的组成部件(例如芯片或者电路)执行，对此不作限定。为了便于描述，下面以由终端设备执行为例进行说明。
该方法包括：终端设备接收来自网络设备的节能参数，该节能参数用于该终端设备进入节能模式；在该终端设备在进入节能模式之后的第一时间，位于卫星的覆盖区域的情况下，该终端设备向该网络设备发送注册请求消息。
在上述方案中，终端设备在第一时间位于卫星覆盖区域的情况下，向网络设备发送注册请求消息。该注册请求消息用于触发网络设备更新卫星覆盖信息。通过上述方案，可以在终端设备的覆盖状态发生变化的情况下，及时让网络设备更新卫星覆盖信息，以便终端设备在位于卫星覆盖区域的情况下，其可达性不受影响，从而提高通信效率。
示例性地，网络设备通过节能参数指示终端设备在某一时间(记为第二时间)进入节能模式，该节能参数可以隐性指示网络设备认为终端设备在第二时间之后位于卫星的非覆盖区域。如果终端设备发现在第二时间之后的第一时间，自身实际位于卫星的覆盖区域的情况下，终端设备可以认为网络设备保存的卫星覆盖信息所指示的卫星的覆盖状态与终端设备实际的覆盖状态不匹配。在这种情况下，终端设备通过注册请求消息触发网络设备更新卫星覆盖信息，以便终端设备在位于卫星覆盖区域的情况下，其可达性不受影响，从而提高通信效率。
可选地，在该终端设备在第一时间位于卫星覆盖区域的情况下，终端设备可以不根据该节能参数进入节能模式。
结合第二方面，在第二方面的某些实现方式中，注册请求消息包括该终端设备的位置信息，该终端设备的位置信息用于更新卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于该卫星的覆盖区域的时间。
在上述方案中，终端设备可以在注册请求消息中携带位置信息，以便网络设备可以根据该位置信息更新终端设备的卫星覆盖信息，避免网络设备通过额外的流程获取终端设备的位置信息，从而提高通信效率，节省资源。
结合第二方面，在第二方面的某些实现方式中，该注册请求消息还包括第三指示信息，该第三指示信息用于指示该网络设备更新该卫星覆盖信息。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：该终端设备接收来自该网络设备 的用于指示该第一时间的信息。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：该终端设备确定在该第一时间位于该卫星的覆盖区域，其中，该终端设备确定在该第一时间位于该卫星的覆盖区域，具体包括：该终端设备根据在该第一时间的信号强度确定在该第一时间位于该卫星的覆盖区域；或者，该终端设备根据该终端设备的位置信息以及该卫星的星历信息确定在该第一时间位于该卫星的覆盖区域。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：该终端设备接收来自该网络设备的第四指示信息；该终端设备根据该第四指示信息，判断在该第一时间是否位于该卫星的覆盖区域。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：在该终端设备从该卫星的非覆盖区域进入该卫星的覆盖区域的情况下，该终端设备向该网络设备发送注册请求消息。
终端设备从卫星的非覆盖区域进入卫星的覆盖区域的情况下，可以向网络设备发送注册请求消息，该注册请求消息用于触发网络设备更新卫星覆盖信息，以便让网络设备感知终端设备的覆盖状态的变化(即从卫星无覆盖到有覆盖，即，从卫星的非覆盖区域到卫星的覆盖区域)，防止终端设备位于卫星覆盖区域的情况下，因网络设备没有即时更新卫星覆盖信息，导致终端设备无法接收下行数据的情况。可以理解的是，该方案可以结合上述第二方面所提供的方案实施，也可以独立实施，即该方案可以不依赖于上述第二方面提供的方案独立实施。
第三方面，提供了一种通信方法，该方法可以由终端设备执行，或者，也可以由终端设备的组成部件(例如芯片或者电路)执行，对此不作限定。为了便于描述，下面以由终端设备执行为例进行说明。
该方法包括：终端设备在位于卫星的非覆盖区域的情况下，判断是否存在可用的无线接入技术；在存在可用的无线接入技术的情况下，该终端设备选择附着到该可用的无线接入技术对应的小区；该终端设备向网络设备发送注册请求消息。
在上述方案中，终端设备在卫星的非覆盖区域的情况下(即在卫星接入技术不可用的情况下)，判断是否存在可用的无线接入技术，以便附着到该可用的无线接入技术对应的小区。通过上述方案，可以使得位于卫星非覆盖区域的终端设备通过其他无线接入技术接入网络，并向网络设备发送注册请求消息，该注册请求消息用于触发网络设备更新终端设备的网络覆盖信息，该网络覆盖信息用于指示终端设备位于网络覆盖范围的时间。通过上述方案，可以使得终端设备在位于卫星非覆盖区域的情况下，依然能够与网络设备进行通信，从而提高通信效率和用户体验。
结合第三方面，在第三方面的某些实现方式中，该卫星对应的小区与该无线接入技术对应的小区属于不同的注册区。
在上述方案中，由于卫星对应的小区与该无线接入技术对应的小区属于不同的注册区，终端设备在从卫星对应的小区附着到该无线接入技术对应的小区的情况下，会触发注册流程，以便网络设备能够及时感知终端设备的覆盖状态的变化，从而使得终端设备的可达性不受影响。
结合第三方面，在第三方面的某些实现方式中，该方法还包括：该终端设备接收来自该网络设备的第五指示信息；终端设备在位于卫星的非覆盖区域的情况下，判断是否存在可用的无线接入技术，包括：该终端设备根据该第五指示信息，在位于该卫星的非覆盖区域的情况下，判断是否存在可用的无线接入技术。
结合第三方面，在第三方面的某些实现方式中，该注册请求消息包括第六指示信息，该第六指示信息用于指示该网络设备更新该终端设备的网络覆盖信息，该网络覆盖信息用于指示该终端设备位于网络的覆盖区域的时间。
结合第三方面，在第三方面的某些实现方式中，该注册请求消息包括该终端设备的位置信息。
在上述方案中，终端设备可以在注册请求消息中携带位置信息，以便网络设备可以根据该位置信息更新终端设备的网络覆盖信息，避免网络设备需要通过额外的流程获取终端设备的位置信息，从而减少信令开销，提高通信效率。
第四方面，提供了一种通信方法，该方法可以由网络设备执行，或者，也可以由网络设备的组成部件(例如芯片或者电路)执行，对此不作限定。为了便于描述，下面以由网络设备执行为例进行说明。
该方法包括：网络设备向终端设备发送卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于 卫星的覆盖区域的时间；该网络设备接收来自该终端设备的注册请求消息，该注册请求消息是基于该卫星覆盖信息触发的；该网络设备根据该注册请求消息更新该卫星覆盖信息。
在上述方案中，网络设备向终端设备发送卫星覆盖信息，并且，在网络设备接收到由该卫星覆盖信息触发的注册请求消息后，更新该卫星覆盖信息。通过上述方案，可以让网络设备及时更新卫星覆盖信息，以便终端设备在位于卫星覆盖区域的情况下，其可达性不受影响，从而提高通信效率。
可以理解的是，该注册请求消息是基于该卫星覆盖信息触发的，指的是终端设备是根据该卫星覆盖信息向网络设备发送该注册请求消息的。例如，终端设备判断该卫星覆盖信息所指示的覆盖状态与该终端设备在该卫星下的实际的覆盖状态是否匹配，在不匹配的情况下，终端设备向网络设备发送该注册请求消息。
第五方面，提供了一种通信方法，该方法可以由网络设备执行，或者，也可以由网络设备的组成部件(例如芯片或者电路)执行，对此不作限定。为了便于描述，下面以由网络设备执行为例进行说明。
该方法包括：网络设备向终端设备发送节能参数，该节能参数用于指示终端设备进入节能模式；该网络设备接收来自该终端设备的注册请求消息，该注册请求消息是基于该节能参数触发的；该网络设备根据该注册请求消息更新该卫星覆盖信息。
结合第四方面或第五方面，在某些实现方式中，该注册请求消息包括该终端设备的位置信息；该网络设备根据该注册请求消息，更新该卫星覆盖信息，包括：该网络设备根据该注册请求消息，通过该终端设备的位置信息，更新该卫星覆盖信息。
在上述方案中，网络设备可以从注册请求消息中获取终端设备的位置信息，该位置信息例如包括终端设备的地理位置和/或轨迹信息(如终端设备的未来轨迹)，可以避免网络设备需要通过其他额外流程获取终端设备的位置信息，从而减少信令开销，提高通信效率。
结合第四方面或第五方面，在某些实现方式中，该网络设备根据该注册请求消息，更新该卫星覆盖信息，包括：该网络设备根据该终端设备接入的卫星是非连续覆盖的卫星，更新该卫星覆盖信息。
在上述方案中，在终端设备接入的卫星是非连续覆盖的卫星的情况下，网络设备更新该卫星覆盖信息。而不是对所有终端设备的卫星覆盖信息进行更新，从而可以节省资源，示例性地，网络设备可以从接入网设备获取该终端设备的位置信息对该终端设备的卫星覆盖信息进行更新。
结合第四方面或第五方面，在某些实现方式中，该注册请求消息包括第一指示信息，该第一指示信息用于指示该网络设备更新该卫星覆盖信息。
结合第四方面或第五方面，在某些实现方式中，该方法还包括：该网络设备向该终端设备发送第二指示信息，该第二指示信息用于指示该终端设备在该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配的情况下，通知该网络设备。
第六方面，提供了一种通信方法，该方法可以由终端设备执行，或者，也可以由终端设备的组成部件(例如芯片或者电路)执行，对此不作限定。为了便于描述，下面以由终端设备执行为例进行说明。
该方法包括：在终端设备所接入的卫星为非连续覆盖的卫星的情况下，网络设备为该终端设备分配包括单一无线接入技术对应的小区的注册区；该网络设备向该终端设备发送第一消息，该第一消息包括该注册区。
在上述方案中，网络设备为终端设备分配了包括单一无线接入技术对应的小区的注册区，在这种情况下，当终端设备从卫星接入技术对应的小区切换到了其他可用的接入技术的小区，终端设备将发送注册请求消息以触发注册区更新。网络设备便可以在接收到该注册请求消息之后更新终端设备的网络覆盖信息，使得终端设备在附着到可用的无线接入技术对应的小区后，其可达性不受影响。
结合第六方面，在第六方面的某些实现方式中，在该网络设备为该终端设备分配包括单一无线接入技术的小区的注册区之前，该方法还包括：该网络设备接收来自该终端设备的注册请求消息。
结合第六方面，在第六方面的某些实现方式中，在终端设备所接入的卫星为非连续覆盖的卫星的情况下，网络设备为该终端设备分配包括单一无线接入技术的小区的注册区，包括：该网络设备根据配置信息，在终端设备所接入的卫星为非连续覆盖的卫星的情况下，为该终端设备分配包括单一无线接入技术的小区的注册区。
结合第六方面，在第六方面的某些实现方式中，该方法还包括：该网络设备确定该终端设备所接入的卫星为非连续覆盖的卫星。
结合第六方面，在第六方面的某些实现方式中，该第一消息还包括第七指示信息，该第七指示信息用于指示该终端设备在位于该卫星的非覆盖区域的情况下，判断是否存在可用的无线接入技术。
第七方面，提供了一种通信方法，该方法包括：网络设备向终端设备发送卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于卫星的覆盖区域的时间；在该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配的情况下，该终端设备向该网络设备发送注册请求消息；该网络设备接收来自该终端设备的注册请求消息；该网络设备根据该注册请求消息更新该卫星覆盖信息。
第八方面，提供了一种通信方法，该方法包括：网络设备向终端设备发送节能参数，该节能参数用于指示该终端设备进入节能模式；该终端设备接收来自该网络设备的该节能参数该该；在该终端设备在进入节能模式之后的第一时间，位于卫星的覆盖区域的情况下，该终端设备向该网络设备发送注册请求消息；该网络设备接收来自该终端设备的注册请求消息；该网络设备根据该注册请求消息更新该卫星覆盖信息。
第九方面，提供了一种通信方法，该方法包括：网络设备在确定所述终端设备所接入的卫星为存在非连续覆盖的卫星的情况下，网络设备为所述终端设备分配包括单一无线接入技术的小区的注册区；所述网络设备向所述终端设备发送第一消息，所述第一消息包括所述注册区。所述终端设备接收来自所述网络设备的所述第一消息。
根据第九方面，在第九方面的某些实现方式中，该方法还包括：终端设备在位于卫星的非覆盖区域的情况下，判断是否存在可用的无线接入技术；在存在可用的无线接入技术的情况下，所述终端设备附着到所述可用的无线接入技术对应的小区；所述终端设备向网络设备发送注册请求消息；该网络设备接收来自该终端设备的注册请求消息；该网络设备根据该注册请求消息更新该终端设备的网络覆盖信息，该网络覆盖信息用于指示该终端设备位于网络覆盖范围的时间。
第十方面，提供了一种通信方法，该方法包括：网络设备向接入网设备发送卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于卫星的覆盖区域的时间；该接入网设备接收来自该网络设备的该卫星覆盖信息；在该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配的情况下，该接入网设备向该网络设备发送注册请求消息；该网络设备接收来自该接入网设备的该注册请求消息；该接入网设备根据该注册请求消息更新该卫星覆盖信息。
该网络设备还可以执行上述第四方面至第六方面的任意实现方法。
第十一方面，提供了一种通信系统，该系统包括网络设备和接入网设备，该网络设备，用于向该接入网设备发送卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于卫星的覆盖区域的时间；该接入网设备用于接收来自该网络设备的该卫星覆盖信息；在该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配的情况下，向该网络设备发送注册请求消息；该网络设备，还用于接收来自该接入网设备的该注册请求消息；根据该注册请求消息更新该卫星覆盖信息。该网络设备还具备实现上述第四方面至第六方面的任意实现方法的功能。
第十二方面，提供了一种通信装置，该装置可以是终端设备，还可以是用于终端设备的芯片。该装置具有实现上述第一方面至第三方面的任意实现方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第十三方面，提供了一种通信装置，该装置可以是网络设备，还可以是用于网络设备的芯片。该装置具有实现上述第四方面至第六方面的任意实现方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第十四方面，提供一种通信装置，该装置包括：存储器，用于存储程序；处理器，用于执行存储器存储的程序，当存储器存储的程序被执行时，处理器用于执行上述第一方面至第六方面提供的任一方法。
第十五方面，本申请提供一种处理器，用于执行上述各方面提供的方法。在执行这些方法的过程中，上述方法中有关发送上述信息和获取/接收上述信息的过程，可以理解为由处理器输出上述信息的过程，以及处理器接收输入的上述信息的过程。在输出上述信息时，处理器将该上述信息输出给收发 器，以便由收发器进行发射。该上述信息在由处理器输出之后，还可能需要进行其他的处理，然后再到达收发器。类似的，处理器接收输入的上述信息时，收发器获取/接收该上述信息，并将其输入处理器。更进一步的，在收发器收到该上述信息之后，该上述信息可能需要进行其他的处理，然后再输入处理器。
基于上述原理，举例来说，前述方法中提及的接收请求消息可以理解为处理器接收输入的信息。
对于处理器所涉及的发射、发送和获取/接收等操作，如果没有特殊说明，或者，如果未与其在相关描述中的实际作用或者内在逻辑相抵触，则均可以更加一般性的理解为处理器输出和接收、输入等操作，而不是直接由射频电路和天线所进行的发射、发送和接收操作。
在实现过程中，上述处理器可以是专门用于执行这些方法的处理器，也可以是执行存储器中的计算机指令来执行这些方法的处理器，例如通用处理器。上述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。
第十六方面，提供一种计算机可读存储介质，该计算机可读介质存储用于设备执行的程序代码，该程序代码包括用于执行上述第一方面至第六方面提供的任一方法。
第十七方面，提供一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行上述第一方面至第六方面提供的任一方法。
第十八方面，提供一种芯片，该芯片包括处理器与通信接口，该处理器通过该通信接口读取存储器上存储的指令，执行上述第一方面至第六方面提供的任一方法。
可选地，作为一种实现方式，该芯片还可以包括存储器，该存储器中存储有指令，该处理器用于执行该存储器上存储的指令，当该指令被执行时，该处理器用于执行上述第一方面至第六方面提供的任一方法。
第十九方面，提供了一种通信系统，该通信系统包括用于执行如第一方面所示方法的终端设备，以及用于执行如第四方面所示方法的网络设备。
第二十方面，提供了一种通信系统，该通信系统包括用于执行如第二方面所示方法的终端设备，以及用于执行如第五方面所示方法的网络设备。
第二十一方面，提供了一种通信系统，该通信系统包括用于执行如第三方面所示方法的终端设备，以及用于执行如第六方面所示方法的网络设备。
附图说明
图1是适用于本申请实施例的一种网络架构的示意图。
图2是适用于本申请实施例的另一种网络架构的示意图。
图3是适用于本申请实施例的另一种网络架构的示意图。
图4是一种卫星通信场景示意图。
图5是一种卫星的非连续覆盖场景示意图。
图6示出了本申请实施例提供的一种通信方法600的示例性流程图。
图7示出了本申请实施例提供的另一种通信方法700的示例性流程图。
图8示出了本申请实施例提供的又一种通信方法800的示例性流程图。
图9示出了本申请实施例提供的又一种通信方法900的示例性流程图。
图10示出了本申请实施例提供的又一种通信方法1000的示例性流程图。
图11示出了本申请实施例提供的又一种通信方法1100的示例性流程图。
图12是本申请一个实施例提供的通信装置的示意性框图。
图13是本申请另一个实施例提供的通信装置的示意性框图。
图14是本申请又一个实施例提供的通信装置的示意性框图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。其中，在本申请的描述中， 除非另有说明，“多个”的含义是两个或两个以上。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
可以理解的是，在本申请中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的范围。上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”以及其他各种术语标号等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请提供的技术方案可以应用于各种通信系统，例如：第五代(5th generation，5G)或新无线(new radio，NR)系统、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)系统等。本申请提供的技术方案还可以应用于未来的通信系统，如第六代移动通信系统。本申请提供的技术方案还可以应用于设备到设备(device to device，D2D)通信，车到万物(vehicle-to-everything，V2X)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，以及物联网(internet of things，IoT)通信系统或者其他通信系统。
为了解决背景技术部分提到的问题，如图1所示，本申请提供了一种通信系统100，该系统100包括终端设备和网络设备。
其中，作为一种可能的示例，该网络设备用于向终端设备发送卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于卫星的覆盖区域的时间；该终端设备用于接收来自网络设备的卫星覆盖信息；该终端设备还用于在该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配的情况下，向该网络设备发送注册请求消息。该网络设备还用于接收来自该终端设备的注册请求消息，以及根据该注册请求消息更新该卫星覆盖信息。
示例性地，本申请实施例提供的通信系统中，终端设备从网络设备获取卫星覆盖信息，并在卫星覆盖信息所指示的终端设备的覆盖状态与终端设备实际的覆盖状态不匹配的情况下，向网络设备发送注册请求消息。该注册请求消息可以触发网络设备更新该卫星覆盖信息。通过上述方案，可以在终端设备的覆盖状态发生变化的情况下，及时让网络设备更新卫星覆盖信息，以便终端设备在位于卫星覆盖区域的情况下，其可达性不受影响，即可以防止在终端设备位于卫星覆盖区域的情况下，由于网络设备没有更新卫星覆盖信息而不能及时传输下行数据的情况，从而提高通信效率以及用户体验。
应理解，图1中各网元之间的具体交互过程可以参照图6至图8中的任意一种方法的流程，或者参照图9至图11中的任一个方法流程，具体实现方案可以参见方法600至方法1100中的详细说明。
图1所示的通信系统100可以应用于图2和/或图3所示的第五代(5th generation，5G)网络架构中，在这种情况下，通信系统100中的终端设备可对应于图2或图3中的UE，通信系统100中的网络设备可对应于图2或图3中的AMF。图1所示的通信系统100也可以应用于第四代(4th generation，4G)网络架构中，在这种情况下，通信系统100中的终端设备可对应于4G中的UE，通信系统100中的网络设备可对应于4G中的移动管理实体(mobile managenment entity，MME)。当然，图1所示的通信系统100也可以应用在未来网络架构，比如第六代(6th generation，6G)网络架构等，本申请实施例对此不作具体限定。
下面将结合图2和图3举例说明本申请实施例适用的5G系统。应理解，本文中描述的5G系统仅是示例，不应对本申请构成任何限定。
还应理解，5G系统中某些网元之间可以采用服务化接口，或点对点的接口进行通信，下面结合图2和图3分别介绍基于点对点接口的5G系统框架，以及基于服务化接口的5G系统框架。
作为示例性说明，图2示出了本申请实施例适用的5G系统的架构示意图。图2为基于点对点接口的5G网络架构示意图。如图2所示，该网络架构可以包括但不限于以下网元(或者称为功能网元、功能实体、节点、设备等)：
(无线)接入网设备(radio access network，(R)AN)、接入和移动性管理功能(access and mobility management function，AMF)网元、会话管理功能(session management function，SMF)网元、用户面功能(user plane function，UPF)网元、策略控制功能(policy control function，PCF)网元、统一数据管理(unified data management，UDM)网元、AF网元、数据网络(data network，DN)、网络切片选择功能(network slice selection function，NSSF)、认证服务器功能(authentication server function，AUSF)、统一数据管理(unified data management，UDM)、BSF网元、统一数据存储(unified data repository，UDR)等。
下面对图2中示出的各网元进行简单介绍：
1、用户设备(user equipment，UE)：可以称为终端设备(terminal equipment)、终端装置、接入终端、用户单元、用户站、移动站、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、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。终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例可以为：手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑(如笔记本电脑、掌上电脑等)、移动互联网设备(mobile internet device，MID)、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、远程医疗(remote medical)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。
此外，终端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。IoT技术可以通过例如窄带(narrow band，NB)技术，做到海量连接，深度覆盖，终端省电。
此外，终端设备还可以包括智能打印机、火车探测器等，主要功能包括收集数据(部分终端设备)、接收网络设备的控制信息与下行数据，并发送电磁波，向网络设备传输上行数据。
应理解，用户设备可以是任何可以接入网络的设备。终端设备与接入网设备之间可以采用某种空口技术相互通信。
可选地，用户设备可以用于充当基站。例如，用户设备可以充当调度实体，其在V2X或D2D等中的用户设备之间提供侧行链路信号。比如，蜂窝电话和汽车利用侧行链路信号彼此通信。蜂窝电话和智能家居设备之间通信，而无需通过基站中继通信信号。
2、(无线)接入网((radio)access network，(R)AN)设备：用于为特定区域的授权用户设备提供入网功能，并能够根据用户设备的级别，业务的需求等使用不同服务质量的传输隧道。
(R)AN能够管理无线资源，为用户设备提供接入服务，进而完成控制信号和用户设备数据在用户设备和核心网之间的转发，(R)AN也可以理解为传统网络中的基站。
示例性地，本申请实施例中的接入网设备可以是用于与用户设备通信的任意一种具有无线收发功能的通信设备。该接入网设备包括但不限为演进型节点B(evolved Node B，eNB)或5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。比如， CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，接入网设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的接入网设备，也可以将CU划分为核心网(core network，CN)中的接入网设备，本申请对此不做限定。
在卫星通信场景中，无线接入网设备还可以称为无线卫星接入网络站点(或者无线卫星接入网络设备、无线卫星接入网络)、卫星接入网络站点(或者卫星接入网络设备、卫星接入网络)或者称为卫星网络站点(或者称为卫星网络设备、卫星网络)，本申请实施例对此不做限定。卫星接入网络可以有多种部署方式，例如：同一个PLMN同时拥有地面3GPP接入网路和卫星3GPP接入网络，两种接入网络分别与核心网之间有独立的接口；又例如：不同的核心网共享同一卫星接入网络，共享的卫星接入网络会在广播系统信息中包含可用的PLMN；又例如：地面接入网络和卫星接入网络是独立的，即地面接入网络和卫星接入网络对应独立的PLMN；又例如：天空中的卫星仅负责信号传递，不具有接入网络的功能，这种场景也中可以卫星接入称为卫星回程。在上述的非卫星回程的场景中，卫星可以包含全部或部分接入网络的功能，本申请对此不做限定。当基站的全部功能集成在卫星上时，卫星接入网络设备可理解为卫星上基站部分功能的设备，接入网络的相关信令和数据处理全部在卫星上进行。基站的部分功能集成在卫星上，部分功能位于地面时，卫星接入网络设备可理解为卫星上的基站部分功能的设备和地面上的基站部分功能的设备，接入网络的相关信令和数据处理部分在卫星上进行部分在地面上进行。卫星回程时，卫星接入网络设备可理解为地面上的基站，接入网络的相关信令和数据处理全部在地面上进行，卫星在终端设备和卫星接入网络之间透传信令和数据。
3、用户面功能(user plane function，UPF)网元：用于分组路由和转发以及用户面数据的服务质量(quality of service，QoS)处理等。
在未来通信系统中，用户面网元仍可以是UPF网元，或者，还可以有其它的名称，本申请不做限定。
4、接入和移动管理功能(access and mobility management function，AMF)网元：接入和移动管理功能网元主要用于移动性管理和接入管理等，可以用于实现MME功能中除会话管理之外的其它功能，例如，接入授权/鉴权等功能。
在未来通信系统中，接入和移动管理设备仍可以是AMF，或者，还可以有其它的名称，本申请不做限定。
5、会话管理功能(session management function，SMF)网元：主要用于会话管理、用户设备的网络互连协议(internet protocol，IP)地址分配和管理、选择可管理用户平面功能、策略控制和收费功能接口的终结点以及下行数据通知等。
在未来通信系统中，会话管理网元仍可以是SMF网元，或者，还可以有其它的名称，本申请不做限定。
6、策略控制功能(policy control function，PCF)网元：用于指导网络行为的统一策略框架，为控制面功能网元(例如AMF，SMF等)提供策略规则信息等。
在未来通信系统中，策略控制网元仍可以是PCF网元，或者，还可以有其它的名称，本申请不做限定。
7、应用功能(application function，AF)：用于进行应用影响的数据路由，无线接入网络开放功能网元，与策略框架交互进行策略控制等。
在未来通信系统中，应用网元仍可以是AF网元，或者，还可以有其它的名称，本申请不做限定。
8、统一数据管理(unified data management，UDM)网元：用于处理UE标识，接入鉴权，注册以及移动性管理等。
在未来通信系统中，统一数据管理仍可以是UDM网元，或者，还可以有其它的名称，本申请不 做限定。
9、认证服务器(authentication server function，AUSF)网元：用于鉴权服务、产生密钥实现对用户设备的双向鉴权，支持统一的鉴权框架。
在未来通信系统中，认证服务器功能网元仍可以是AUSF网元，或者，还可以有其它的名称，本申请不做限定。
10、网络数据分析功能(network data analytics function，NWDAF)网元：用于识别网络切片实例、加载网络切片实例的负载级别信息。网络数据分析功能可使NF消费者订阅或取消订阅定期通知，并在超过阈值的情况下，通知消费者。
在未来通信系统中，网络数据分析功能网元仍可以是NWDAF网元，或者，还可以有其它的名称，本申请不做限定。
11、数据网络(data network，DN)：DN是位于运营商网络之外的网络，运营商网络可以接入多个DN，DN上可部署多种业务，可为终端设备提供数据和/或语音等服务。例如，DN是某智能工厂的私有网络，智能工厂安装在车间的传感器可为终端设备，DN中部署了传感器的控制服务器，控制服务器可为传感器提供服务。传感器可与控制服务器通信，获取控制服务器的指令，根据指令将采集的传感器数据传送给控制服务器等。又例如，DN是某公司的内部办公网络，该公司员工的手机或者电脑可为终端设备，员工的手机或者电脑可以访问公司内部办公网络上的信息、数据资源等。
图2中Nausf、Nnef、Npcf、Nudm、Naf、Namf、Nsmf、N1、N2、N3、N4，以及N6为接口序列号。这些接口序列号的含义可参见3GPP标准协议中定义的含义，在此不做限制。
在图2所示的网络架构中，各网元之间可以通过图中所示的接口通信。如图所示，UE和AMF之间可以通过N1接口进行交互，交互消息例如可以称为N1消息(N1Message)。RAN和AMF之间可以通过N2接口进行交互，N2接口可以用于非接入层(non-access stratum，NAS)消息的发送等。RAN和UPF之间可以通过N3接口进行交互，N3接口可以用于传输用户面的数据等。SMF和UPF之间可以通过N4接口进行交互，N4接口可以用于传输例如N3连接的隧道标识信息，数据缓存指示信息，以及下行数据通知消息等信息。UPF和DN之间可以通过N6接口进行交互，N6接口可以于传输用户面的数据等。其他接口与各网元之间的关系如图2中所示，为了简洁，这里不一一详述。
如图3所示，为基于点对点接口的5G网络架构示意图，其中的网元的功能的介绍可以参考图2中对应的网元的功能的介绍，不再赘述。图3与图2的主要区别在于：图3中的各个网元之间的接口是点对点的接口，而不是服务化的接口。
在图3所示的架构中，各个网元之间的接口名称及功能如下：
1)N7：PCF与SMF之间的接口，用于下发协议数据单元(protocol data unit，PDU)会话粒度以及业务数据流粒度控制策略。
2)N15：PCF与AMF之间的接口，用于下发UE策略及接入控制相关策略。
3)N5：AF与PCF之间的接口，用于应用业务请求下发以及网络事件上报。
4)N4：SMF与UPF之间的接口，用于控制面与用户面之间传递信息，包括控制面向用户面的转发规则、QoS控制规则、流量统计规则等的下发以及用户面的信息上报。
5)N11：SMF与AMF之间的接口，用于传递RAN和UPF之间的PDU会话隧道信息、传递发送给UE的控制消息、传递发送给RAN的无线资源控制信息等。
6)N2：AMF与RAN之间的接口，用于传递核心网侧至RAN的无线承载控制信息等。
7)N1：AMF与UE之间的接口，接入无关，用于向UE传递QoS控制规则等。
8)N8：AMF与UDM间的接口，用于AMF向UDM获取接入与移动性管理相关签约数据与鉴权数据，以及AMF向UDM注册UE当前移动性管理相关信息等。
9)N10：SMF与UDM间的接口，用于SMF向UDM获取会话管理相关签约数据，以及SMF向UDM注册UE当前会话相关信息等。
10)N35：UDM与UDR间的接口，用于UDM从UDR中获取用户签约数据信息。
11)N36：PCF与UDR间的接口，用于PCF从UDR中获取策略相关签约数据以及应用数据相关信息。
12)N12：AMF和AUSF间的接口，用于AMF向AUSF发起鉴权流程，其中可携带SUCI作为签 约标识；
13)N13：UDM与AUSF间的接口，用于AUSF向UDM获取用户鉴权向量，以执行鉴权流程。
应理解，上述命名仅为便于区分不同的功能而定义，不应对本申请构成任何限定。本申请并不排除在5G网络以及未来其它的网络中采用其他命名的可能。例如，在6G网络中，上述各个网元中的部分或全部可以沿用5G中的术语，也可能采用其他名称等。图2中的各个网元之间的接口名称只是一个示例，具体实现中接口的名称可能为其他的名称，本申请对此不作具体限定。此外，上述各个网元之间的所传输的消息(或信令)的名称也仅仅是一个示例，对消息本身的功能不构成任何限定。
可以理解的是，上述网元或者功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。为方便说明，本申请后续，以网络设备为接入和移动管理网元AMF，基站为无线接入网络RAN为例进行说明。
应理解，上述应用于本申请实施例的网络架构仅是一种举例说明，适用本申请实施例的网络架构并不局限于此，任何能够实现上述各个网元的功能的网络架构都适用于本申请实施例。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请实施例的各个方面或特征可以用于实现成方法，或者通过装置或标准编程和/或工程技术的制品进行实现。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于：磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
为了便于理解本申请实施例的技术方案，在以5G架构为基础介绍本申请实施例的方案之前，首先对本申请实施例可能涉及到的5G中的一些术语或概念，以及本申请可能涉及但上述网络架构未示出的网元进行简单描述。
1、卫星通信
卫星通信技术指的是地面上的无线通信设备通过卫星接入网络的技术，或者指的是地面上的无线通信设备之间通过卫星作为中继进行通信的技术。卫星通信相对于传统的移动通信系统，拥有更广的覆盖范围，可以克服海洋，沙漠，高山等自然地理障碍等优点。
基于图2或图3所示的通信系统架构，可以将卫星通信与5G通信系统(the 5th-generation mobile communications system，5GS)进行融合。目前，卫星通信与5GS的融合可以分为两种场景，第一种场景为：卫星作为3GPP接入，UE通过卫星接入5GS中的5G核心网(5G core，5GC)；第二种场景为：卫星链路作为回传链路，UE通过回传链路与5GS中的5GC通信(如，回传链路为N3或N9提供承载)。
图4是一种卫星通信与5GS融合的场景示意图。在一种方式中，卫星可以作为再生模式提供信号处理功能，或者卫星本身充当接入网设备的功能，在这种情况下，UE通过该卫星直接与5GC连接。在另一种方式中，卫星可以作为透明模式仅做信号转发，在这种情况下，UE连接卫星之后，还需要通过RAN(图中未画出)与5GC连接。
需要说明的是，图4中仅示出了一个卫星，在实际通信场景中，还可以有多个卫星，且该多个卫星的类型可以相同也可以不同，不同卫星之间存在无线链路，可以完成接入网设备之间的信令交互和用户数据传输。
不同类型的卫星由于轨道高度不同，卫星的覆盖面积、运动特征和带来的传播延时、抖动等也可能不同。示例性地，卫星按轨道类型可分为地球同步卫星(geostationary equatorial orbit，GEO)、低轨道卫星(low earth orbit，LEO)极地轨道星座、中轨道卫星(mid earth orbit，MEO)和其他卫星(Other SAT)等。
2、星历信息
星历信息指的是与卫星星座相关的一些信息，主要用于表示卫星移动的高度、速度、方向、移动 轨迹、或覆盖范围，以及对应的不同时间等信息。网络侧能够根据星历信息判断在某个时间点卫星所在的位置以及卫星覆盖的范围。
3、卫星非连续覆盖
一些卫星会存在非连续覆盖的情况，即卫星的覆盖区域不是连续的，或者说，卫星存在覆盖区域和非覆盖区域，这里的覆盖区域指的是卫星的网络(或者说是信号)能够覆盖的区域，非覆盖区域指的是卫星的网络不能够覆盖的区域。例如，在图5所示的卫星覆盖示意图中，图中的六边形区域为卫星的覆盖区域，图中六边形以外的区域为卫星的非覆盖区域。
在卫星非连续覆盖的场景中，连接卫星的UE会在覆盖区域和非覆盖区域进行切换。例如，UE在位置④固定不动，卫星由位置①移动到位置②，则UE会从覆盖区域进入非覆盖区域；又例如，UE由位置④移动到了位置③，导致UE从覆盖区域进入到了非覆盖区域。可以理解的是，也可以由于UE和卫星两者的运动导致的UE在覆盖区域和非覆盖区域切换。
在本申请实施例中，UE位于覆盖区域的时长，表示当前时刻到UE离开覆盖区域的时长，即UE还可以被覆盖的时间，或者表示当前时刻到UE进入非覆盖区域的时长，即UE还有多长时间离开覆盖区域。UE位于非覆盖区域的时长，表示UE从进入非覆盖区域到离开非覆盖区域的时长，或者表示UE离开覆盖区域到下一次重新进入覆盖区域的时长。
图6示出了本申请实施例提供的方法600的示例性流程图。在方法600中，在终端设备发现网络设备所提供的卫星覆盖信息所指示的终端设备的覆盖状态，与终端设备在卫星下的实际的覆盖状态不匹配的情况下，终端设备向网络设备发起注册流程，以便网络设备更新该卫星覆盖信息。
下面结合图6中的各个步骤对方法600作示例性说明。
S601，网络设备向终端设备发送卫星覆盖信息。对应地，终端设备接收来自网络设备的该卫星覆盖信息。
示例性地，网络设备在确定终端设备所接入的卫星为非连续覆盖的卫星的情况下，获取终端设备的卫星覆盖信息，其中该卫星覆盖信息用于指示终端设备位于该卫星的覆盖区域的时间，或者说，该卫星覆盖信息用于指示该终端设备位于该卫星的非覆盖区域的时间。也就是说，网络设备和终端设备可以根据该卫星覆盖信息确定终端设备在哪些时间段处于卫星的覆盖区域，在哪些时间段处于卫星的非覆盖区域。其中，该卫星覆盖信息可以是网络设备根据卫星的星历信息以及终端设备的位置信息确定的，也可以是网络设备从其他网元获取的，本申请对此不作限定。或者，在另一种可能的实现方式中，网络设备也可以不向终端设备发送该卫星覆盖信息，而是向终端设备发送指示信息，该指示信息用于指示终端设备根据卫星星历信息以及终端设备位置信息生成终端设备侧的卫星覆盖信息，终端设备可以根据该指示信息，自行确定卫星覆盖信息。可以理解的是，终端设备的位置信息可以指的是终端设备当前的位置信息。。
网络设备可以从接入网设备获取该卫星的星历信息，或者也可以从其他网元或者第三方实体获取该卫星的星历信息，在此不做限定。
可以理解的是，本申请实施例所涉及的卫星可以指的是卫星网络，该卫星网络包括一个或多个卫星，该卫星网络用于为终端设备提供接入服务。因此，本申请实施例中的“卫星”均可以替换为“卫星网络”。
然后，网络设备向终端设备发送该卫星覆盖信息。
作为一种可能的实现方式，网络设备通过接入网设备向该终端设备发送该卫星覆盖信息。
在一种实现方式中，网络设备可以在终端设备的注册流程，向终端设备发送该卫星覆盖信息。例如，网络设备接收到来自终端设备的注册请求消息之后，在确定该终端设备所接入的卫星为非连续覆盖的卫星的情况下，网络设备生成该终端设备的卫星覆盖信息，然后向终端设备发送注册接受消息，并在该注册接受消息中携带该卫星覆盖信息。
在另一种实现方式中，网络设备可以根据配置信息生成该卫星覆盖信息，并通过非接入层消息向终端设备发送该卫星覆盖信息，即网络设备主动通过非接入层消息向终端设备发送该卫星覆盖信息，如通过5G中的终端设备配置更新(UE Configuraiton Update,UCU)流程向终端设备发送该卫星覆盖信息，本申请对这种实现方式下，网络设备向终端设备发送卫星覆盖信息的时机不作限定。
可选地，网络设备还可以向终端设备发送第二指示信息，该第二指示信息用于指示该终端设备在 该卫星覆盖信息所指示的该终端设备的覆盖状态，与该终端设备在该卫星下的实际的覆盖状态不匹配的情况下，通知该网络设备(或触发注册流程)，或者，该第二指示信息用于指示终端设备判断该卫星覆盖信息所指示的该终端设备的覆盖状态与该终端设备在该卫星下的实际的覆盖状态是否匹配。其中，终端设备在卫星下的覆盖状态包括终端设备位于该卫星的覆盖区域，以及终端设备位于该卫星的非覆盖区域。可以理解的是，本申请实施例中的“终端设备位于卫星的非覆盖区域”，均可以替换为“终端设备不位于卫星的覆盖区域”。
可以理解的是，本申请实施例中网络设备和终端设备之间的通信，可以是网络设备和终端设备之间的直接通信，也可以是通过其他网元(如接入网设备)的间接通信。例如，网络设备在向终端设备发送卫星覆盖信息，可以指的是网络设备通过接入网设备向终端设备发送该卫星覆盖信息。后续类似地方不再重复说明。
可选地，发送卫星覆盖信息给终端设备的网络设备与终端设备发起注册请求流程的网络设备可以是不同的。
可选地，S602，终端设备判断卫星覆盖信息所指示的终端设备的覆盖状态，与终端设备在卫星下的实际的覆盖状态是否匹配。
示例性地，终端设备接收来自网络设备的覆盖信息之后，根据配置信息或者来自网络设备的第二指示信息，判断该卫星覆盖信息所指示的终端设备的覆盖状态，与终端设备在卫星下的实际的覆盖状态是否匹配。
下面对终端设备判断卫星覆盖信息所指示的终端设备的覆盖状态，与终端设备在卫星下的实际的覆盖状态是否匹配的两种可能的实现方式作示例性说明。
在一种实现方式中，终端设备判断卫星覆盖信息所指示的终端设备的覆盖状态，与终端设备在卫星下的实际的覆盖状态是否匹配，指的是，终端设备判断卫星覆盖信息所指示的终端设备在某一时间(可以是某一时刻，也可以是某一时间窗)的覆盖状态，与终端设备在该时间的实际的覆盖状态是否匹配。例如，在一种实现方式中，终端设备判断卫星覆盖信息所指示的终端设备在当前时刻的覆盖状态，与终端设备当前时刻在卫星下的实际的覆盖状态是否匹配。下面对这种实现方式作示例性说明。
首先，终端设备确定当前时刻在该卫星下的实际的覆盖状态。例如，终端设备根据当前小区的信号强度，确定终端设备在该卫星下的实际的覆盖状态，具体地，在终端设备当前小区的信号强度小于设定的阈值的情况下，终端设备确定当前实际位于卫星的非覆盖区域，即终端设备当前实际上不在卫星覆盖区域内；在终端设备当前小区的信号强度大于或等于设定的阈值的情况下，终端设备确定当前实际位于卫星的覆盖区域。又例如，终端设备根据该卫星的星历信息以及该终端设备当前的位置信息，确定该终端设备当前时刻在该卫星下的实际的覆盖状态，其中，该终端设备可以从接入网设备的广播消息中获取该卫星的星历信息。
然后，终端设备判断当前在该卫星下的实际的覆盖状态，与卫星覆盖信息所指示的终端设备当前时刻的覆盖状态是否匹配。例如，在终端设备当前实际位于卫星的覆盖区域，但卫星覆盖信息指示终端设备当前位于卫星的非覆盖区域的情况下，终端设备确定当前在该卫星下的实际的覆盖状态，与卫星覆盖信息所指示的终端设备的覆盖状态不匹配。又例如，在终端设备当前实际位于卫星的覆盖区域，且卫星覆盖信息指示终端设备当前位于卫星的覆盖区域的情况下，终端设备确定当前在该卫星下的实际的覆盖状态，与卫星覆盖信息所指示的终端设备的覆盖状态匹配。又例如，在终端设备当前实际位于卫星的非覆盖区域，且卫星覆盖信息指示终端设备当前位于卫星的非覆盖区域的情况下，终端设备确定当前在该卫星下的实际的覆盖状态，与卫星覆盖信息所指示的终端设备的覆盖状态不匹配。
或者，在另一种实现方式中，终端设备判断卫星覆盖信息所指示的终端设备在未来某一时刻的覆盖状态，与终端设备在该时刻的实际的覆盖状态是否匹配。例如，终端设备发现当前小区的信号强度小于设定的阈值，但卫星覆盖信息指示终端设备在未来1小时之内都处于卫星的覆盖区域，则终端设备确定卫星覆盖信息所指示的终端设备在未来某一时刻的覆盖状态，与终端设备在该时刻的实际的覆盖状态不匹配。具体地，终端设备可以根据当前一段时间内的卫星信号强度估计未来某一时刻的覆盖状态，如终端设备根据10分钟内的卫星信号强度的变化估计未来某一时刻的覆盖状态。又例如，终端设备根据卫星的星历信息，以及地理位置或未来轨迹信息确定在10分钟之后终端设备将从卫星的覆盖区域进入卫星的非覆盖区域，但是卫星覆盖信息指示终端设备在未来30分钟内都处于卫星的覆盖区域， 则终端设备确定卫星覆盖信息所指示的终端设备在未来某一时刻的覆盖状态，与终端设备在该时刻的实际的覆盖状态不匹配。
可以理解的是，本申请实施例对终端设备执行S602的时机和次数不作限定。例如，终端设备可以在接收到来自网络设备的卫星覆盖信息之后，按照预设的时间间隔，周期性地执行S602。
S603，终端设备向网络设备发送注册请求消息。对应地，网络设备接收来自终端设备的该注册请求消息。
示例性地，在卫星覆盖信息所指示的终端设备的覆盖状态，与终端设备在卫星下的实际的覆盖状态不匹配的情况下，终端设备向网络设备发送注册请求消息。该注册请求消息用于触发网络设备更新该终端设备的卫星覆盖信息。作为一种可能的实现方式，终端设备通过接入网设备向网络设备发送该注册请求消息。
可以理解的是，步骤S603和步骤S601所对应的网络设备可以是同一个网络设备，也可能不是同一个网络设备。也就是说，终端设备在S601从一个网络设备接收卫星覆盖信息之后，有可能在S603向另一个网络设备发送了注册请求消息。为了方便，本申请实施例以S603和S601对应的网络设备为同一个网络设备为例进行说明。
在实际实现中，如果发送卫星覆盖信息的网络设备和接收注册请求消息的网络设备不是同一个网络设备，那么发送卫星覆盖信息的网络设备和接收注册请求消息的网络设备可以是同种类型的网络设备，也可以是不同类型的网络设备。
可以理解的是，该注册请求消息可以是5G中的注册更新请求消息或移动注册更新请求消息，也可以是4G中的跟踪区更新请求消息，或者是未来网络系统中的其他消息，相应地，该注册请求消息对于的注册流程可以是5G中的注册流程，也可以是5G中的跟踪区更新流程或者是未来网络系统中的其他流程，本申请对此不作限定。
可选地，该注册请求消息可以包括终端设备的位置信息，其中，该位置信息用于网络设备更新卫星覆盖信息，或者说，该位置信息用于网络设备跟踪终端设备的位置。本申请实施例对该位置信息的具体形式不作限定，作为一种示例，该位置信息包括终端设备当前的位置的信息和/或未来运动轨迹。
可选地，该注册请求消息还可以包括第一指示信息，其中该第一指示信息用于指示网络设备更新该卫星覆盖信息。也就是说，终端设备可以通过注册请求消息隐性指示网络设备更新卫星覆盖信息，即网络设备在确定终端设备所接入的卫星为非连续覆盖的卫星的情况下，根据注册请求消息更新卫星覆盖信息，也可以在该注册请求消息中携带显性的第一指示信息来指示网络设备更新卫星覆盖信息。或者，该第一指示信息用于指示卫星覆盖信息所指示的终端设备的覆盖状态与终端设备在卫星下的实际的覆盖状态不匹配。可以理解的是，该第一指示信息可以是终端设备的位置信息，即第一指示信息和终端设备的位置信息可以是同一条信息，或者说，终端设备可以通过在注册请求消息中携带终端设备的位置信息指示网络设备更新终端设备的卫星覆盖信息。
S604，网络设备更新卫星覆盖信息。
示例性地，网络设备接收来自终端设备的注册请求消息之后，根据该注册请求消息，或是该注册请求消息中携带的第一指示信息，或者是该注册请求消息中携带的终端设备的位置信息，更新卫星覆盖信息。
具体地，网络设备获取终端设备的位置信息，然后根据该位置信息更新卫星覆盖信息。网络设备可以从注册请求消息中获取终端设备的位置信息，或者网络设备通过触发终端设备位置上报流程，让终端设备向网络设备上报终端设备的位置信息，或者网络设备从接入网设备侧获取终端设备的位置信息。另外，网络设备根据该位置信息更新卫星覆盖信息，指的是，网络设备根据最新获取的该终端设备的位置信息以及卫星的星历信息重新确定卫星覆盖信息，可选地，网络设备可以删除旧的卫星覆盖信息。可选地，该网络设备与步骤S601中的网络设备可以是不同的网络实体。
在上述方案中，网络设备向终端设备提供卫星覆盖信息，以便终端设备在发现该卫星覆盖信息所指示的该终端设备的覆盖状态与终端设备在卫星下的实际的覆盖状态不匹配时，发起注册流程。网络设备可以在注册流程更新卫星覆盖信息。通过上述方案，可以让网络设备及时感知终端设备覆盖状态的变化。例如，终端设备由于移动，从卫星的覆盖区域移动到了卫星的非覆盖区域，如果卫星覆盖信息指示终端设备当前仍处于卫星的非覆盖区域，则终端设备通过发起注册流程以便网络设备更新该卫 星覆盖信息，避免出现终端设备在卫星覆盖区域但无法即时获取下行数据的情况，即网络设备可以及时感知终端设备的覆盖状态的变化，从而确保终端设备的可达性不受影响，从而可以提高通信的效率。另一方面，网络设备也不需要频繁获取终端设备的位置信息，便可以感知终端设备覆盖状态的变化，从而可以节省资源。
图7示出了本申请实施例提供的方法700的示例性流程图。在方法700中，在终端设备发现在将要进入节能模式的时间之后的某一时刻或时间窗仍处于卫星覆盖区域的情况下，终端设备向网络设备发起注册流程，以便网络设备更新卫星覆盖信息。
下面结合图7中的各个步骤对方法700作示例性说明。
S701，网络设备向终端设备发送节能参数。对应地，终端设备接收来自网络设备的该节能参数。
示例性地，网络设备在确定终端设备所接入的卫星为非连续覆盖的卫星的情况下，根据卫星的星历信息以及终端设备的位置信息确定卫星覆盖信息，具体过程以及关于卫星覆盖信息的描述可参考方法600中的S601部分的描述，这里不再赘述。
进一步地，网络设备根据该卫星覆盖信息确定节能参数，该节能参数用于终端设备进入节能模式。具体地，该节能参数用于终端设备在进入卫星非覆盖区域时进入节能模式。终端设备进入节能模式可以理解为终端设备进入休眠状态，在终端设备在节能模式中，不再与网络设备进行通信。网络设备通过让位于卫星非覆盖区域的终端设备进入节能模式，以起到节能的效果。示例性地，该节能参数可以包括周期性注册定时器(periodic registration timer)、激活时间(active time)以及扩展非连续接收(extended discontinuous reception，eDRX)参数等。
然后，网络设备向终端设备发送该节能参数。作为一种可能的实现方式，该网络设备通过接入网设备向该终端设备发送该节能参数。
在一种实现方式中，网络设备可以在终端设备的注册流程，向终端设备发送该节能参数。例如，网络设备接收到来自终端设备的注册请求消息之后，在确定该终端设备所接入的卫星为非连续覆盖的卫星的情况下，网络设备生成该终端设备的卫星覆盖信息，然后根据该卫星覆盖信息确定节能参数，以及向终端设备发送注册响应消息，并在该注册响应消息中携带该节能参数。或者，网络设备也可以在其他流程通过非接入层消息向终端设备发送节能参数，本申请对此不作限定。
可选地，网络设备还向终端设备发送用于指示第一时间的信息，该第一时间为终端设备进入节能模式之后的时刻或时间窗。
可选地，网络设备还可以向终端设备发送第四指示信息，该第四指示信息用于指示终端设备判断在所述第一时间是否位于卫星的覆盖区域，或者，该第四指示信息用于指示终端设备在第一时间位于卫星的覆盖区域的情况下发起注册流程，或者该第四指示信息用于指示该节能参数是根据卫星非连续覆盖确定或由于卫星非连续覆盖导致的，即该第四指示信息可以隐性指示终端设备判断在所述第一时间是否处于卫星的覆盖区域，以及在第一时间位于卫星覆盖区域的情况下触发注册流程。
S702，终端设备判断在终端设备进入节能模式之后的第一时间是否位于卫星的覆盖区域。
示例性地，终端设备接收来自网络设备的节能参数之后，根据配置信息或者来自网络设备的第四指示信息，判断在第一时间是否位于卫星的覆盖区域。
本申请实施例对终端设备执行S702的时机不作限定。在一种可能的实现方式中，终端设备在接收到来自网络设备的节能参数之后，判断在第一时间是否位于卫星的覆盖区域；在另一种实现方式中，终端设备在将要进入节能模式之前(例如在进入节能模式之前5秒钟)，判断在第一时间是否位于卫星的覆盖区域；在又一种可能的实现方式中，终端设备在进入节能模式之后(例如终端设备在第一时间)，判断在第一时间是否位于卫星的覆盖区域。
终端设备可以根据当前小区的信号强度判断是否在第一时间位于卫星的覆盖区域。例如，终端设备在进入节能模式之前，在当前小区的信号强度大于设定的阈值的情况下，终端设备预测在第一时间位于卫星的覆盖区域。或者，终端设备根据位置信息和星历信息判断或预测在第一时间该终端设备是否位于卫星的覆盖区域。该位置信息包括终端设备的地理位置和/或移动轨迹。本申请对此不做限定。
S703，终端设备向网络设备发送注册请求消息。对应地，网络设备接收来自终端设备的该注册请求消息。
示例性地，在终端设备判断在进入节能模式之后的第一时间仍位于卫星的覆盖区域的情况下，终 端设备向网络设备发送注册请求消息。该注册请求消息用于触发网络设备更新终端设备的卫星覆盖信息。作为一种可能的实现方式，终端设备通过接入网设备向网络设备发送给注册请求消息。
可选地，该注册请求消息可以包括终端设备的位置信息，其中，该位置信息用于网络设备更新卫星覆盖信息，或者说，该位置信息用于网络设备跟踪终端设备的位置。示例性地，该位置信息可以包括终端设备的当前地理位置和/或未来移动轨迹。
可选地，该注册请求消息还可以包括第三指示信息，其中该第三指示信息用于指示网络设备更新该卫星覆盖信息，或者，该第三指示信息用于指示终端设备在进入节能模式之后的第一时间位于卫星的覆盖区域。可以理解的是，该第三指示信息可以是终端设备的位置信息，即第三指示信息和终端设备的位置信息可以是同一条信息，或者说，终端设备可以通过在注册请求消息中携带终端设备的位置信息指示网络设备更新终端设备的卫星覆盖信息。
S704，网络设备更新卫星覆盖信息。
S704与方法600中的S604类似，为了简洁，这里不再赘述。
在上述方案中，网络设备向终端设备发送用于进入节能模式的节能参数，并且网络设备是根据终端设备的卫星覆盖信息确定的该节能参数，网络设备通过该节能参数让终端设备进入卫星非覆盖区域的情况系进入节能模式，以节省终端设备的资源。如果终端设备发现在进入节能模式之后的某一时间自身仍处于卫星的覆盖区域，则意味着终端设备是在卫星的覆盖区域进入了节能模式，从而影响终端设备的正常通信。在这种情况下，终端设备可以发起注册流程，以便网络设备更新卫星覆盖信息，并根据更新后的卫星覆盖信息重新确定节能参数。通过上述方案，可以让网络设备及时感知终端设备覆盖状态的变化，确保终端设备的可达性不受影响，从而可以提高通信效率。
可以理解的是，方法700可以独立实施，也可以与方法600结合实施。例如，在一种可能的实现方式中，网络设备可以既向终端设备发送卫星覆盖信息，又向终端设备发送节能参数，终端设备接收来自网络设备的卫星覆盖信息和节能参数之后，判断卫星覆盖信息所指示的终端设备的覆盖状态，与终端设备在卫星下的实际的覆盖状态是否匹配，以及判断在终端设备进入节能模式之后的第一时间是否位于卫星的覆盖区域，在卫星覆盖信息所指示的终端设备的覆盖状态，与终端设备在卫星下的实际的覆盖状态不匹配，和/或终端设备在第一时间位于卫星的覆盖区域的情况下，终端设备向网络设备发送注册请求消息。
图8示出了本申请实施例提供的方法800的示例性流程图。在方法800中，网络设备为终端设备分配的注册区包括单一无线接入技术对应的小区，终端设备在位于卫星的非覆盖区域的情况下，仍然通过小区扫描判断是否存在可用的无线接入技术，在存在可用的无线接入技术的情况下，附着到该可用的无线接入技术对应的小区，并触发注册流程，从而使得网络感知终端设备的最新位置，以便网络设备更新终端设备的网络覆盖信息。
下面结合图8中的各个步骤对方法800作示例性说明。
S801，网络设备为终端设备分配包括单一无线接入技术对应的小区的注册区。
示例性地，网络设备在确定终端设备所接入的卫星为非连续覆盖的卫星的情况下，为该终端设备分配注册区，该注册区仅包括单一无线接入技术对应的小区，也就是说，该注册区中所包括的小区对应同一种无线接入技术，该注册区不包括支持其他无线接入技术的小区。其中该无线接入技术包括NR(低轨道卫星(low earth orbit，LEO))、NR(中轨道卫星(mid earth orbit，MEO))、NR(地球同步卫星(geostationary equatorial orbit，GEO))等不同的卫星接入类型。
S802，网络设备向终端设备发送第一消息，该第一消息包括该注册区。对应地，终端设备接收来自该网络设备的该第一消息。
示例性地，网络设备为终端设备分配了注册区之后，通过第一消息向终端设备发送该注册区。作为一种可能的实现方式，网络设备通过接入网设备向终端设备发送该第一消息。
在一种实现方式中，网络设备可以在终端设备的注册流程，向终端设备发送该注册区。例如，网络设备接收来自终端设备的注册请求消息之后，判断该终端设备所接入的卫星是否为非连续覆盖的卫星，如果是的话，则执行S801，然后向该终端设备发送注册响应消息，该注册响应消息包括该注册区。也就是说，在这种场景下，上述第一消息可以是注册响应消息。
在另一种实现方式中，网络设备可以根据配置信息生成该注册区，并通过非接入层消息向终端设 备发送该注册区，本申请对这种实现方式下，网络设备向终端设备发送卫星覆盖信息的时机不作限定。
可选地，该第一消息还可以包括第五指示信息，该第五指示信息用于指示该终端设备在位于卫星的非覆盖区域的情况下，判断是否存在可用的无线接入技术。
可选地，S803，终端设备在位于卫星覆盖区域的情况下，判断是否存在可用的无线接入技术。
示例性地，终端设备在进入卫星覆盖区域之后，根据配置信息或者来时来自网络设备的第五指示信息，通过小区扫描判断是否存在可用的无线接入技术。例如，该终端设备根据预配置进行小区扫描，或者周期性地进行小区扫描，或者定期进行小区扫描，具体方式本申请不做限定。
S804，终端设备附着到可用的无线接入技术对应的小区。
示例性地，在存在可用的无线接入技术的情况下，终端设备附着到该可用的无线接入技术对应的小区上。也就是说，在终端设备位于卫星非覆盖区域的情况下，如果终端设备发现存在可用的无线接入技术，则终端设备从该卫星对应的小区切换到该可用的无线接入技术对应的小区。
S805，终端设备向网络设备发送注册请求消息。对应地，网络设备接收来自终端设备的该注册请求消息。
示例性地，终端设备附着到可用的无线接入技术之后，向网络设备发送注册请求消息。作为一种可能的实现方式，终端设备通过接入网设备向网络设备发送该注册请求消息。
可以理解的是，由于网络设备在S801为终端设备分配的注册区仅包括单一无线接入技术对应的小区，因此该卫星对应的小区与该无线接入技术对应的小区属于不同的注册区，因此该终端设备从原卫星接入技术对应的小区切换到该无线接入技术对应的小区之后，通过向网络设备发送注册请求消息以触发注册区更新流程。
还可以理解的是，该注册请求消息可以是5G中的移动注册更新请求消息，也可以是4G中的跟踪区更新请求消息，或者是未来网络系统中的其他消息，本申请对此不作限定。
可选地，该注册请求消息包括第六指示信息，该第六指示信息用于指示网络设备更新终端设备的网络覆盖信息，该网络覆盖信息用于指示终端设备位于网络的覆盖区域的时间，或者说，该网络覆盖信息用于指示终端设备位于网络的非覆盖区域的时间。
可选地，该注册请求消息包括终端设备的位置信息，其中，该位置信息用于网络设备更新终端设备的网络覆盖信息，或者说，该位置信息用于网络设备跟踪终端设备的位置。
可选地，S806，网络设备更新网络覆盖信息。具体过程与方法600中的S604类似，区别在于在S604网络设备更新的是终端设备的卫星覆盖信息，而在S806网络设备更新的是网络覆盖信息。其中，该网络覆盖信息可以是终端设备的卫星覆盖信息。
网络设备更新了终端设备的网络覆盖信息之后，可以根据该网络覆盖信息生成节能参数。
在上述方案中，终端设备在位于卫星覆盖区域的情况下，仍然通过小区扫描判断是否存在可用的无线接入技术，在存在可用的无线接入技术的情况下，附着到该可用的无线接入技术对应的小区。由于网络设备为终端设备分配的注册区仅包括单一无线接入技术对应的小区，因此终端设备在附着到可用的无线接入技术对应的小区后，要触发注册流程，以便网络设备在终端设备的注册流程更新终端设备的网络覆盖信息。通过上述方案，可以使得处于卫星非覆盖区域的终端设备附着到其他可用的无线接入技术对应的小区上，使得终端设备在卫星的非覆盖区域仍然可以进行通信，从而提高通信效率。
可以理解的是，方法800可以独立实施，也可以和方法600和/或方法700结合实施。例如，在一种实现方式中，网络设备可以通过同一条非接入层消息向终端设备发送卫星覆盖信息、节能参数和包括单一无线接入技术对应的小区的注册区。终端设备接收来自网络设备的该非接入层消息后，可以执行如方法600中的S602-S603的方法，或者执行如方法700中的S702-S703的方案，或者执行如方法800中的S803-S805的方案。
图9示出了本申请实施例提供的方法900的示例性流程图。方法900可以是方法600的一种可能的实现方式。在方法900中，以方法600中的终端设备为UE、网络设备为AMF为例进行说明，以方法600中的注册请求消息为注册更新请求消息为例进行说明。
S901，UE向AMF发送注册请求消息。对应地，AMF接收来自UE的该注册请求消息。
S902，AMF确定UE的卫星覆盖信息。
示例性地，AMF根据卫星的星历信息以及UE的位置信息确定该卫星覆盖信息，具体实现过程以 及关于该卫星覆盖信息的描述可参考方法600中的S601部分的相关描述，这里不再赘述。
S903，AMF向UE发送注册接受消息，该注册接受消息包括该卫星覆盖信息。对应地，UE接收来自AMF的该注册接受消息。
可以理解的是，S903可以看做方法600中的S601的一种可能的实现方式，这里不再赘述。
可选地，S904，UE判断卫星覆盖信息所指示的UE的覆盖状态与UE在卫星下的实际的覆盖状态是否匹配。
S905，UE向AMF发送注册更新请求消息。对应地，AMF接收来自UE的该注册更新请求消息。
S906，网络设备更新卫星覆盖信息。
示例性地，UE在确定卫星覆盖信息所指示的UE的覆盖状态与UE在卫星下的实际的覆盖状态不匹配的情况下，向AMF发送注册更新请求消息。AMF接收来自UE的注册更新请求消息之后，更新UE的卫星覆盖信息。可以理解的是，S904-S906与方法600的S602-S604类似，为了简洁，这里不再详细说明。
S907，AMF向UE发送注册更新接受消息，该注册更新接受消息中携带更新后的卫星覆盖信息。对应地，UE接收来自该AMF的注册更新接受消息。可以理解的是，UE从该注册更新接受消息获取更新后的卫星覆盖信息之后，可以再次执行S904的步骤。
可以理解的是，方法900是将本申请实施例的方法应用于5G系统为例进行说明的，但本实施例还可以应用于其他系统。例如，当方法900应用于4G系统时，方法900中的AMF可以替换为MME；S901中的注册请求消息可以替换为附着请求消息或跟踪区更新请求消息，对应地，S903可以替换为附着接受消息或跟踪区更新接受消息；S905的注册更新请求消息可以替换为跟踪区更新请求消息，对应地，S907可以替换为跟踪区更新接受消息。
图10示出了本申请实施例提供的方法1000的示例性流程图。方法1000可以是方法700的一种可能的实现方式。在方法1000中，以方法700中的终端设备为UE、网络设备为AMF为例进行说明，以方法700中的注册请求消息为注册更新请求消息为例进行说明。
S1001，UE向AMF发送注册请求消息。对应地，AMF接收来自UE的该注册请求消息。
可选地，S1002，AMF确定UE的卫星覆盖信息。
可选地，S1003，AMF根据UE的卫星覆盖信息，确定节能参数。
示例性地，AMF接收来自UE的注册请求消息之后，根据UE的位置信息和卫星的星历信息确定卫星覆盖信息，然后根据该卫星覆盖信息确定节能参数。具体过程可参考方法700中的S701部分的描述，这里不再赘述。
S1004，AMF向UE发送注册接受消息，该注册接受消息包括节能参数。对应地，UE接收来自AMF的该注册接受消息。
可以理解的是，S1004可以看做方法700中的S701的一种可能的实现方式，这里不再赘述。
S1005，UE判断在UE进入节能模式之后的第一时间是否位于卫星的覆盖区域。
S1006，UE向AMF发送注册更新请求消息。对应地，AMF接收来自UE的该注册更新请求消息。
S1007，AMF更新卫星覆盖信息。
示例性地，UE在确定UE在第一时间位于卫星的覆盖区域的情况下，向AMF发送注册更新请求消息。AMF接收来自UE的该注册更新请求消息之后，更新UE的卫星覆盖信息。可以理解的是，S1005-S1007与方法700中的S702-S704类似，为了简洁，这里不再详细说明。
可选地，S1008，AMF根据更新后的卫星覆盖信息更新节能参数。
可选地，S1009，AMF向UE发送注册更新接受消息，该注册更新接受消息包括该更新后的节能参数。可以理解的是，UE从该注册更新接受消息获取更新后的节能参数之后，可以再次执行S1005。
图11示出了本申请实施例提供的方法1100的示例性流程图。方法1100可以是方法800的一种可能的实现方式。在方法1100中，以方法800中的终端设备为UE、网络设备为AMF为例进行说明，以方法800中的第一消息为注册接受消息、以方法800中的注册请求消息为移动注册更新请求消息为例进行说明。
S1101，UE向AMF发送注册请求消息。对应地，AMF接收来自UE的该注册请求消息。
S1102，AMF为UE分配包括单一无线接入技术对应的小区的注册区。
示例性地，AMF接收来自UE的注册请求消息之后，为UE分配注册区，该注册区所包括的小区对应同一种无线接入技术。具体方案可参考方法800中的S801部分的描述，这里不再赘述。
S1103，AMF向UE发送注册接受消息，该注册接受消息包括该注册区。对应地，UE接收来自AMF的该注册接受消息。
可以理解的是，S1103可以看做方法800中的S802的一种可能的实现方式，这里不再赘述。
可选地，S1104，UE在位于卫星覆盖区域的情况下，判断是否存在可用的无线接入技术。
可选地，S1105，UE附着到可用的无线接入技术对应的小区。
S1106，UE向AMF发送移动注册更新请求消息。对应地，AMF接收来自UE的该移动注册更新请求消息。
可选地，S1107，AMF更新UE的网络覆盖信息。
S1104-S1107与方法800中的S803-S806类似，为了简洁，这里不再赘述。
相应于上述各方法实施例给出的方法，本申请实施例还提供了相应的装置，该装置包括用于执行上述各个方法实施例相应的模块。该模块可以是软件，也可以是硬件，或者是软件和硬件结合。可以理解的是，上述各方法实施例所描述的技术特征同样适用于以下装置实施例，因此，未详细描述的内容可以参见上文方法实施例，为了简洁，这里不再赘述。
图12是本申请实施例提供的通信装置10的示意性框图。该装置10包括收发模块11和/或处理模块12。收发模块11可以实现相应的通信功能，处理模块12用于进行数据处理，或者说该收发模块11用于执行接收和发送相关的操作，该处理模块12用于执行除了接收和发送以外的其他操作。收发模块11还可以称为通信接口或通信单元。
可选地，该装置10还可以包括存储模块13，该存储模块13可以用于存储指令和/或数据，处理模块12可以读取存储模块中的指令和/或数据，以使得装置实现前述各个方法实施例中设备或网元的动作。
在第一种设计中，该装置10可对应于上文方法实施例中的终端设备(例如图6-图8中的终端设备，或是图9-图11中的UE)，或者是终端设备的组成部件(如芯片)。
该装置10可实现对应于上文方法实施例中的终端设备执行的步骤或者流程，其中，收发模块11可用于执行上文方法实施例中终端设备的收发相关的操作，处理模块12可用于执行上文方法实施例中终端设备的处理相关的操作。
在一种可能的实现方式，收发模块11，用于接收来自网络设备的卫星覆盖信息，该卫星覆盖信息用于指示该装置位于卫星的覆盖区域的时间；该收发模块11，还用于在该卫星覆盖信息所指示的该装置的覆盖状态，与该装置在该卫星下的实际的覆盖状态不匹配的情况下，向该网络设备发送注册请求消息。
在另一种可能的实现方式，该装置10可实现上文方法实施例中方法600中的终端设备或方法900中的UE执行的步骤或者流程，其中，收发模块11，用于接收来自网络设备的节能参数，该节能参数用于该装置进入节能模式；该收发模块11，还用于在该装置在进入节能模式之后的第一时间，位于卫星的覆盖区域的情况下，向该网络设备发送注册请求消息。
在又一种可能的实现方式，该装置10可实现上文方法实施例中方法700中的终端设备或方法1000中的UE执行的步骤或者流程，其中，处理模块12，用于在位于卫星的非覆盖区域的情况下，判断是否存在可用的无线接入技术；以及，在存在可用的无线接入技术的情况下，附着到该可用的无线接入技术对应的小区；收发模块11，用于向网络设备发送注册请求消息。
在又一种可能的实现方式，该装置10可实现上文方法实施例中方法800中的终端设备或方法1100中的UE执行的步骤或者流程，其中，处理模块12，用于在终端设备所接入的卫星为非连续覆盖的卫星的情况下，为该终端设备分配包括单一无线接入技术的小区的注册区；收发模块11，用于向该终端设备发送第一消息，该第一消息包括该注册区。
在第二种设计中，该装置10可对应于上文方法实施例中的网络设备(例如图6至图8中的网络设备，或是图9至图11中的AMF)，或者是网络设备的组成部件(如芯片)。
该装置10可实现对应于上文方法实施例中的网络设备执行的步骤或者流程，其中，收发模块11可用于执行上文方法实施例中网络设备的收发相关的操作，处理模块12可用于执行上文方法实施例中网络设备的处理相关的操作。
在一种可能的实现方式，该装置10可实现上文方法实施例中方法800中的网络设备或方法1100中的AMF执行的步骤或者流程，其中，收发模块11，用于向终端设备发送卫星覆盖信息，该卫星覆盖信息用于指示该终端设备位于卫星的覆盖区域的时间和/或位于该卫星的非覆盖区域的时间；该收发模块11，还用于接收来自该终端设备的注册请求消息，该注册请求消息是基于该卫星覆盖信息触发的；处理模块12，用于根据该注册请求消息更新该卫星覆盖信息。
应理解，各模块执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
还应理解，这里的装置10以功能模块的形式体现。这里的术语“模块”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置10可以具体为上述实施例中的终端设备，可以用于执行上述各方法实施例中与终端设备对应的各个流程和/或步骤；或者，装置10可以具体为上述实施例中的网络设备，可以用于执行上述各方法实施例中与网络设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置10具有实现上述方法中的设备(如终端设备，或网络设备)所执行的相应步骤的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块；例如收发模块可以由收发机替代(例如，收发模块中的发送单元可以由发送机替代，收发模块中的接收单元可以由接收机替代)，其它单元，如处理模块等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
此外，上述收发模块11还可以是收发电路(例如可以包括接收电路和发送电路)，处理模块可以是处理电路。
图13是本申请实施例提供另一种通信装置20的示意图。该装置20包括处理器21，处理器21用于执行存储器22存储的计算机程序或指令，或读取存储器22存储的数据/信令，以执行上文各方法实施例中的方法。可选地，处理器21为一个或多个。
可选地，如图13所示，该装置20还包括存储器22，存储器22用于存储计算机程序或指令和/或数据。该存储器22可以与处理器21集成在一起，或者也可以分离设置。可选地，存储器22为一个或多个。
可选地，如图13所示，该装置20还包括收发器23，收发器23用于信号的接收和/或发送。例如，处理器21用于控制收发器23进行信号的接收和/或发送。
作为一种方案，该装置20用于实现上文各个方法实施例中由终端设备执行的操作。
作为另一种方案，该装置20用于实现上文各个方法实施例中由网络设备执行的操作。
应理解，本申请实施例中提及的处理器可以是中央处理模块(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。
还应理解，本申请实施例中提及的存储器可以是易失性存储器和/或非易失性存储器。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(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)。例如，RAM可以用作外部高速缓存。作为示例而非限定，RAM包括如下多种形式：静态随机存取存储器(static 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(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门 或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)可以集成在处理器中。
还需要说明的是，本文描述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。
图14是本申请实施例提供一种芯片系统30的示意图。该芯片系统30(或者也可以称为处理系统)包括逻辑电路31以及输入/输出接口(input/output interface)32。
其中，逻辑电路31可以为芯片系统30中的处理电路。逻辑电路31可以耦合连接存储单元，调用存储单元中的指令，使得芯片系统30可以实现本申请各实施例的方法和功能。输入/输出接口32，可以为芯片系统30中的输入输出电路，将芯片系统30处理好的信息输出，或将待处理的数据或信令信息输入芯片系统30进行处理。
作为一种方案，该芯片系统30用于实现上文各个方法实施例中由网络功能虚拟化编排器执行的操作。
例如，逻辑电路31用于实现上文方法实施例中由终端设备执行的处理相关的操作，如，图6至图8所示实施例中的终端设备或是图9至图11中的UE执行的处理相关的操作；输入/输出接口32用于实现上文方法实施例中由终端设备执行的发送和/或接收相关的操作，如图6至图8所示实施例中的终端设备或是图9至图11中的UE执行的发送和/或接收相关的操作。
作为另一种方案，该芯片系统30用于实现上文各个方法实施例中由网络设备执行的操作。
例如，逻辑电路31用于实现上文方法实施例中由网络设备执行的处理相关的操作，如，图6至图8所示实施例中的网络设备或是图9至图11中的AMF执行的处理相关的操作；输入/输出接口32用于实现上文方法实施例中由虚拟基础设施管理器执行的发送和/或接收相关的操作，如，图6至图8所示实施例中的网络设备或是图9至图11中的AMF执行的发送和/或接收相关的操作。
本申请实施例还提供一种计算机可读存储介质，其上存储有用于实现上述各方法实施例中由设备执行的方法的计算机指令。
例如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法各实施例中由终端设备执行的方法。
又如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法各实施例中由网络设备执行的方法。
本申请实施例还提供一种计算机程序产品，包含指令，该指令被计算机执行时以实现上述各方法实施例中由设备(如终端设备，又如网络设备)执行的方法。
本申请实施例还提供了一种通信系统，包括前述的终端设备和网络设备。
上述提供的任一种装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
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是示意性的，例如，所述单元的划分，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。此外，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。
在上述实施例中，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。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述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。例如，所述计算机可以是个人计算机，服务器，或者网络设备等。所述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，所述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(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。所述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。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD)等。例如，前述的可用介质包括但不限于：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random  access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，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所述权利要求的保护范围为准。

Claims (27)

  1. 一种通信方法，其特征在于，包括：
    终端设备接收来自网络设备的卫星覆盖信息，所述卫星覆盖信息用于指示所述终端设备位于卫星的覆盖区域的时间；
    在所述卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态不匹配的情况下，所述终端设备向所述网络设备发送注册请求消息。
  2. 根据权利要求1所述的方法，其特征在于，所述注册请求消息包括所述终端设备的位置信息，所述位置信息用于更新所述卫星覆盖信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述注册请求消息包括第一指示信息，所述第一指示信息用于指示所述网络设备更新所述卫星覆盖信息。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备确定所述卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态不匹配，其中，所述终端设备确定所述卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态不匹配，具体包括：
    所述终端设备确定所述卫星覆盖信息指示所述终端设备当前位于所述卫星的非覆盖区域，以及所述终端设备当前实际位于所述卫星的覆盖区域。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备确定所述终端设备在所述卫星下的实际的覆盖状态，其中，所述终端设备确定所述终端设备在所述卫星下的实际的覆盖状态，具体包括：所述终端设备根据当前小区的信号强度，确定所述终端设备在所述卫星下的实际的覆盖状态；或者，
    所述终端设备根据所述卫星的星历信息和所述终端设备的位置信息，确定所述终端设备在所述卫星下的实际的覆盖情况。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自所述网络设备的第二指示信息；
    所述终端设备根据所述第二指示信息，判断所述卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态是否匹配。
  7. 一种通信方法，其特征在于，包括：
    网络设备向终端设备发送卫星覆盖信息，所述卫星覆盖信息用于指示所述终端设备位于卫星的覆盖区域的时间；
    所述网络设备接收来自所述终端设备的注册请求消息，所述注册请求消息是基于所述卫星覆盖信息触发的；
    所述网络设备根据所述注册请求消息更新所述卫星覆盖信息。
  8. 根据权利要求7所述的方法，其特征在于，所述注册请求消息包括所述终端设备的位置信息；
    所述网络设备根据所述注册请求消息，更新所述卫星覆盖信息，包括：
    所述网络设备根据所述注册请求消息，通过所述终端设备的位置信息，更新所述卫星覆盖信息。
  9. 根据权利要求7或8所述的方法，其特征在于，所述网络设备根据所述注册请求消息，更新所述卫星覆盖信息，包括：
    所述网络设备根据所述终端设备所接入的卫星是非连续覆盖的卫星，更新所述卫星覆盖信息。
  10. 根据权利要求7至9中任一项所述的方法，其特征在于，所述注册请求消息包括第一指示信息，所述第一指示信息用于指示所述网络设备更新所述卫星覆盖信息。
  11. 根据权利要求7至10中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述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卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态不匹配的情况下，通知所述网络设备。
  12. 一种通信装置，其特征在于，包括：
    收发模块，用于接收来自网络设备的卫星覆盖信息，所述卫星覆盖信息用于指示终端设备位于卫星的覆盖区域的时间；
    所述收发模块，还用于在所述卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态不匹配的情况下，向所述网络设备发送注册请求消息。
  13. 根据权利要求12所述的装置，其特征在于，所述注册请求消息包括所述装置的位置信息，所述位置信息用于更新所述卫星覆盖信息。
  14. 根据权利要求12或13所述的装置，其特征在于，所述注册请求消息包括第一指示信息，所述第一指示信息用于指示所述网络设备更新所述卫星覆盖信息。
  15. 根据权利要求12至14中任一项所述的装置，其特征在于，所述装置还包括：
    处理模块，用于确定所述卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态不匹配，其中，所述处理模块具体用于：
    确定所述卫星覆盖信息指示所述终端设备当前位于所述卫星的非覆盖区域，以及所述终端设备当前实际位于所述卫星的覆盖区域。
  16. 根据权利要求12至15中任一项所述的装置，其特征在于，所述处理模块，还用于：
    所述处理模块，还用于：确定所述终端设备在所述卫星下的实际的覆盖状态；
    其中，所述处理模块，具体用于：根据当前小区的信号强度，确定所述终端设备在所述卫星下的实际的覆盖状态；或者，根据所述卫星的星历信息和所述终端设备的位置信息，确定所述终端设备在所述卫星下的实际的覆盖情况。
  17. 根据权利要求12至16中任一项所述的装置，其特征在于，
    所述收发模块，还用于接收来自所述网络设备的第二指示信息；
    所述处理模块，还用于根据所述第二指示信息，判断所述卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态是否匹配。
  18. 一种通信装置，其特征在于，包括：
    收发模块，用于向终端设备发送卫星覆盖信息，所述卫星覆盖信息用于指示所述终端设备位于卫星的覆盖区域的时间；
    所述收发模块，还用于接收来自所述终端设备的注册请求消息，所述注册请求消息是基于所述卫星覆盖信息触发的；
    处理模块，用于根据所述注册请求消息更新所述卫星覆盖信息。
  19. 根据权利要求18所述的装置，其特征在于，所述注册请求消息包括所述终端设备的位置信息；
    所述处理模块，具体用于：根据所述注册请求消息，通过所述终端设备的位置信息，更新所述卫星覆盖信息。
  20. 根据权利要求18或19所述的装置，其特征在于，所述处理模块，具体用于：根据所述终端设备所接入的卫星是非连续覆盖的卫星，更新所述卫星覆盖信息。
  21. 根据权利要求18至20中任一项所述的装置，其特征在于，所述注册请求消息包括第一指示信息，所述第一指示信息用于指示所述装置更新所述卫星覆盖信息。
  22. 根据权利要求18至21中任一项所述的装置，其特征在于，所述收发模块，还用于向所述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卫星覆盖信息所指示的所述终端设备的覆盖状态，与所述终端设备在所述卫星下的实际的覆盖状态不匹配的情况下，通知所述装置。
  23. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1至6中任意一项所述的方法，或者以使得所述计算机执行如权利要求7至11中任一项所述的方法。
  24. 一种计算机程序产品，其特征在于，所述计算机程序产品包括用于执行如权利要求1至6中任一项所述的方法的指令，或者，所述计算机程序产品包括用于执行如权利要求7至11中任一项所述的方法的指令。
  25. 一种芯片，其特征在于，所述芯片包括处理器和通信接口，所述通信接口用于接收信号，并将所述信号传输至所述处理器，所述处理器处理所述信号，使得如权利要求1至6中任一项所述的方 法被执行，或者如权利要求7至11中任一项所述的方法被执行。
  26. 一种通信装置，其特征在于，包括：
    存储器，用于存储程序；
    处理器，用于执行存储器存储的程序，当存储器存储的程序被执行时，处理器用于执行如权利要求1至6中任一项所述的方法，或者所述处理器用于执行如权利要求7至11中任一项所述的方法。
  27. 一种通信系统，其特征在于，所述通信系统包括终端设备和网络设备；
    所述终端设备，用于执行如权利要求1至6中任一项所述的方法，
    所述网络设备，用于执行如权利要求7至11中任一项所述的方法。
PCT/CN2023/109499 2022-07-29 2023-07-27 通信方法、装置和系统 WO2024022425A1 (zh)

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CN111182658A (zh) * 2018-11-12 2020-05-19 华为技术有限公司 一种卫星通信的方法、装置及系统
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