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WO2023011225A1 - Procédé et appareil de transfert de réseau non terrestre, support d'enregistrement et dispositif électronique - Google Patents

Procédé et appareil de transfert de réseau non terrestre, support d'enregistrement et dispositif électronique Download PDF

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Publication number
WO2023011225A1
WO2023011225A1 PCT/CN2022/107521 CN2022107521W WO2023011225A1 WO 2023011225 A1 WO2023011225 A1 WO 2023011225A1 CN 2022107521 W CN2022107521 W CN 2022107521W WO 2023011225 A1 WO2023011225 A1 WO 2023011225A1
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WIPO (PCT)
Prior art keywords
information
handover
network
terminal
base station
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Ceased
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PCT/CN2022/107521
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English (en)
Chinese (zh)
Inventor
刘家祥
蒋峥
佘小明
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Publication of WO2023011225A1 publication Critical patent/WO2023011225A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H04B7/18541—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for handover of resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength

Definitions

  • the present disclosure relates to the technical field of communications, and in particular to a non-terrestrial network switching method and device, storage medium, and electronic equipment.
  • 5G introduces conditional handover technology in the research of terrestrial cellular network mobility enhancement to improve the robustness of handover.
  • the network configures handover execution conditions and multiple candidate cells for the user terminal equipment in advance, and the user selects one of them for handover.
  • NTN Non-Terrestrial Network
  • one or several satellite gateways provide continuous services for mobile terminals on the ground.
  • mobile terminals are required to perform network switching without interruption to ensure the continuity of service status.
  • the purpose of the present disclosure is to provide a non-terrestrial network switching method and device, storage medium and electronic equipment.
  • a non-terrestrial network handover method including: the terminal generates measurement information, and sends the measurement information to the source base station through the network device; the terminal receives the handover information from the source base station through the network device, and the handover information is obtained by Determined by the measurement information; the terminal configures according to the handover information, and feeds back a successful configuration message to the source base station, where the handover information includes the network handover trigger time and candidate cell configuration information; the terminal judges whether the current time reaches the network handover trigger time, and the terminal according to As a result of the judgment, the network is handed over to the candidate cell.
  • a non-terrestrial network handover method including: the source base station receives measurement information of the terminal through network equipment; the source base station determines handover information according to the measurement information, wherein the handover information includes network handover trigger time and candidate The cell configuration information, the handover information is used to instruct the terminal to perform network handover to the candidate cell at the trigger time of the network handover; and the source base station sends the handover information to the terminal through the network equipment.
  • a non-terrestrial network handover method including: the terminal generates measurement information, and sends the measurement information to the source base station through the network device; the source base station receives the measurement information of the terminal through the network device; the source base station according to the measurement Information to determine handover information, where the handover information includes network handover trigger time and candidate cell configuration information, and the handover information is used to instruct the terminal to perform network handover to the candidate cell at the network handover trigger time; the source base station sends the handover information to the terminal through the network device; The terminal receives handover information from the source base station through the network device; the terminal performs configuration according to the handover information, and feeds back a successful configuration message to the source base station; the terminal judges whether the current time reaches the trigger time of network handover, and performs network handover to the candidate base station according to the judgment result. district.
  • a non-terrestrial network switching device including: a sending module, used for the terminal to generate measurement information, and send the measurement information to the source base station through the network device; a receiving module, used for the terminal to receive the measurement information through the network device
  • the handover information from the source base station, the handover information is determined by the measurement information;
  • the configuration module is used for the terminal to configure according to the handover information, where the handover information includes network handover trigger time and candidate cell configuration information;
  • the handover module is used for the terminal to judge the current Whether the time reaches the network handover trigger time, and the terminal performs network handover to the candidate cell according to the judgment result.
  • a non-terrestrial network switching device including: a receiving module, used for the source base station to receive measurement information of the terminal through network equipment; a determining module, used for the source base station to determine switching information according to the measurement information,
  • the handover information includes network handover trigger time and candidate cell configuration information, the handover information is used to instruct the terminal to perform network handover to the candidate cell at the network handover trigger time; and the sending module is used for the source base station to send the handover information to the terminal through the network device.
  • an electronic device including: a processor; and a memory for storing executable instructions of the processor; a transceiver for communicating with other devices; wherein the processor It is configured to execute the above non-terrestrial network handover method by executing the executable instructions.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the above non-terrestrial network switching method is implemented.
  • a computer program product including a computer program, wherein, when the computer program is executed by a processor, the above-mentioned steps of the non-terrestrial network switching method are implemented.
  • FIG. 1A shows a schematic diagram of a typical network architecture of a non-terrestrial communication system in an embodiment of the present disclosure
  • FIG. 1B shows a schematic diagram of a typical network architecture of a non-terrestrial communication system in an embodiment of the present disclosure
  • FIG. 2 shows a flow chart of a non-terrestrial network handover method in an embodiment of the present disclosure
  • FIG. 3 shows a flow chart of another non-terrestrial network handover method in an embodiment of the present disclosure
  • FIG. 4 shows a flowchart of another non-terrestrial network handover method in an embodiment of the present disclosure
  • FIG. 5 shows a flow chart of another non-terrestrial network handover method in an embodiment of the present disclosure
  • FIG. 6 shows a flowchart of another non-terrestrial network handover method in an embodiment of the present disclosure
  • FIG. 7 shows a flowchart of a method for judging whether an update condition is met by a source base station according to current measurement information in the non-terrestrial network handover method shown in FIG. 6 in an embodiment of the present disclosure
  • FIG. 8 shows a schematic diagram of a scenario of a non-terrestrial network handover method in an embodiment of the present disclosure
  • FIG. 9 shows a schematic diagram of another non-terrestrial network handover method in an embodiment of the present disclosure.
  • FIG. 10 shows a schematic diagram of signaling interaction of a non-terrestrial network handover method in an embodiment of the present disclosure
  • Fig. 11 shows a schematic diagram of a non-terrestrial network switching device in an embodiment of the present disclosure
  • FIG. 12 shows a schematic diagram of another non-terrestrial network switching device in an embodiment of the present disclosure.
  • Fig. 13 shows a structural block diagram of a non-terrestrial network switching computer device in an embodiment of the present disclosure.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art.
  • the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • FIG. 1A is a schematic diagram of a typical network architecture of a non-terrestrial (Non-Terrestrial Networks, NTN) communication system provided by an exemplary embodiment of the present application.
  • the system includes: several terminals 120 , a ground base station 130 , several network devices 140 , a gateway (Gateway, GW) 150 and a data network 160 .
  • GW Gateway
  • the terminal 120 can be a mobile phone, a game console, a tablet computer, an e-book reader, smart glasses, an MP4 (Moving Picture Experts Group Audio Layer IV, moving picture expert compression standard audio layer 4) player, a smart home device, an AR (Augmented Reality , augmented reality) equipment, VR (Virtual Reality, virtual reality) equipment, navigation equipment, or mobile terminals such as terminals in other communication systems in the future, or terminal 120 can also be a personal computer (Personal Computer, PC), such as a laptop Laptops, desktops, and more.
  • PC Personal Computer
  • the terminal 120 is connected to the network device 140 through a communication network.
  • the terminal 120 may communicate with the network device 140 through an air interface access network.
  • the network device 140 can communicate with the terrestrial base station 130 or the data network 160 through the next generation network interface connection service gateway 150 .
  • wireless links also exist between network devices 140 to complete signaling interaction and data transmission between network devices 140 .
  • the gateway 150 may be used to forward signaling and service data between the network device 140 and the ground base station 130 and the data network 160 .
  • the gateway 150 can be a ground device installed on the ground (including on a ship or an aircraft) for satellite communication, and consists of a high-gain antenna system capable of tracking satellites, a microwave high-power transmitting system, a low-noise receiving system, and a power supply. system etc.
  • different network devices 140 may be connected to the same base station 130 on the ground through gateways.
  • the network device 140 may also be used to store network switching information.
  • the network device 140 may be a satellite (such as an artificial earth satellite) that provides wireless access services for the terminal 120, and the terminal 120 transparently transmits the wireless resources of the ground base station (not shown) through the satellite. , providing reliable wireless transmission protocols and data encryption protocols, etc. Satellites can be geostationary orbit (GEO) satellites, non-stationary orbit medium earth orbit (MEO) satellites, low earth orbit (LEO) satellites, and high altitude platform (high altitude platform) satellites. station,HAPS).
  • GEO geostationary orbit
  • MEO non-stationary orbit medium earth orbit
  • LEO low earth orbit
  • high altitude platform high altitude platform
  • the network device 140 may also be a high-altitude aircraft (unmanned aerial vehicle system), a ship system or other non-terrestrial base stations that can serve as wireless communications, such as non-terrestrial evolved base stations and 5G base stations.
  • a high-altitude aircraft unmanned aerial vehicle system
  • ship system or other non-terrestrial base stations that can serve as wireless communications, such as non-terrestrial evolved base stations and 5G base stations.
  • FIG. 1B shows a schematic diagram of a typical network architecture of a non-terrestrial communication system in an embodiment of the present disclosure.
  • the terminal device 120 can communicate with the ground base station 130 through the network device 140, wherein the network device 140 can implement transparent or regenerative payloads.
  • the beams generated by the network equipment usually generate multiple beams in a given service area within its coverage area, and the radiation of the beams is usually elliptical.
  • the multiple network devices 140 included in the above network device 140 may belong to the same type of network device, or the above multiple network devices 140 may also belong to different types of network devices.
  • the number of the foregoing terminals 120 and network devices 140 may be more or less. For example, there may be only one terminal and network device 140, or there may be tens or hundreds of terminals, or more.
  • the embodiment of the present application does not limit the number and device types of the terminals 120 and network devices 140 .
  • this scenario may further include a management device (not shown in FIG. 1 ), and the management device is connected to the data network 160 through a communication network.
  • the communication network is a wired network or a wireless network.
  • the aforementioned wireless network or wired network used for the data network 160 uses standard communication technologies and/or protocols.
  • the network is usually the Internet, but can be any network, including but not limited to Local Area Network (LAN), Metropolitan Area Network (MAN), Wide Area Network (WAN), mobile, wired or wireless network, private network, or any combination of virtual private networks).
  • data exchanged over a network is represented using technologies and/or formats including Hyper Text Mark-up Language (HTML), Extensible Markup Language (XML), and the like.
  • HTML Hyper Text Mark-up Language
  • XML Extensible Markup Language
  • you can also use such as Secure Socket Layer (Secure Socket Layer, SSL), Transport Layer Security (Transport Layer Security, TLS), Virtual Private Network (Virtual Private Network, VPN), Internet Protocol Security (Internet Protocol Security, IPsec), etc.
  • SSL Secure Socket Layer
  • TLS Transport Layer Security
  • VPN Virtual Private Network
  • Internet Protocol Security Internet Protocol Security
  • IPsec Internet Protocol Security
  • Fig. 2 shows a flowchart of a non-terrestrial network handover method in an embodiment of the present disclosure.
  • the method provided by the embodiments of the present disclosure may be executed by any electronic device capable of computing and processing, such as the terminal 120 in FIGS. 1A and 1B or a server cluster performing terminal functions.
  • the terminal is used as the execution subject for illustration.
  • the non-terrestrial network handover method may include the following steps:
  • Step S210 the terminal generates measurement information, and sends the measurement information to the source base station through the network device.
  • the terminal sends information to the source base station in the form of transparent transmission through the network device.
  • the measurement information may include location information of the terminal, and may also include measurement results of neighboring cells.
  • the location information may be expressed in the form of latitude and longitude coordinates.
  • the neighbor cell measurement results may include the neighbor cell ID and the measured values of the reference signal received power (RSRP) and reference signal received quality (RSRQ) of the neighbor cell.
  • RSRP reference signal received power
  • RSSQ reference signal received quality
  • Step S220 the terminal receives handover information from the source base station through the network equipment, and the handover information is determined by the measurement information.
  • the terminal receives the information from the source base station in the form of transparent transmission through the network device.
  • the handover information is determined according to the content of the measurement information.
  • the handover information may include network handover trigger time related to terminal location information and candidate cell information related to neighboring cell measurement results.
  • the network handover trigger time instructs the terminal to perform network handover to the candidate cell.
  • Step S230 the terminal configures according to the handover information, and feeds back a successful configuration message to the source base station, wherein the handover information includes network handover trigger time and candidate cell configuration information.
  • conditional switching trigger time may be in the form of a timer or in the form of an absolute value (UTC time), or may be an interval composed of an absolute value of time.
  • step S240 the terminal judges whether the current time reaches the triggering time of network handover, and the terminal executes network handover to the candidate cell according to the judgment result.
  • the terminal reaches the network handover trigger time determined by the source base station according to the current time as the network handover trigger condition, and the terminal does not need to measure and report neighboring cell signals before the network handover trigger time is reached.
  • the network handover execution process may include that the terminal sends synchronization and random access messages to the candidate base station through the first network device and the second network device; and then sends a handover confirmation message to the candidate base station to perform network handover to candidate districts.
  • the terminal automatically triggers network switching according to the network switching trigger time, especially when the signal quality difference between the center of the cell and the edge of the cell is small and the network switching cannot be performed through the measurement information of the channel, the network switching can be improved.
  • the accuracy and success rate of network switching are improved.
  • the terminal does not need to measure the signal quality of adjacent cells multiple times, which improves the degree of automatic network switching and reduces terminal power loss.
  • the network device is a non-terrestrial base station with integrated base station functions and/or a non-terrestrial network device with a transparent transmission function.
  • non-terrestrial base stations with integrated base station functions can be satellites, high-altitude aircraft (unmanned aerial systems), ship systems, or other non-terrestrial base stations that can serve as wireless communications, such as non-terrestrial evolved base stations and 5G base stations. Also for example, it may be a Beidou satellite with a transparent transmission function. Another example is some non-terrestrial network devices that do not have base station functions and only support transparent transmission functions.
  • this method only needs to perform network configuration and data processing functions at the source base station, and the network equipment of the present disclosure only performs transparent transmission, which can achieve low cost , Switching non-terrestrial networks with low risk can effectively improve network reliability and facilitate promotion and implementation.
  • Fig. 3 is a flowchart of another non-terrestrial network handover method in an embodiment of the present disclosure. As shown in Figure 3, the non-terrestrial network switching method includes:
  • Step S310 the terminal receives beam information from the source base station through the network device.
  • the beam information may include a beam type, wherein the beam type may further include earth-moving and earth-fixed.
  • the beam information may be broadcast periodically through a System Information Block (SIB) message or a new SIB message defined.
  • SIB System Information Block
  • the beam information may be broadcast periodically at SIB1.
  • the beam information may also be added to other aperiodic broadcast SIB messages and sent to the terminal.
  • the terminal determines whether to periodically trigger measurement reporting according to the beam type.
  • the terminal when the beam type is ground mobile, the terminal periodically reports measurement information.
  • the terminal when the beam type is ground fixed, the terminal does not need to report measurement information periodically.
  • Step S320 if the beam information is a ground fixed beam, the terminal triggers measurement.
  • the network device may be a satellite in geosynchronous orbit or other non-terrestrial network device that emits ground-fixed beams.
  • the terminal when the beam information is a ground-fixed beam, the terminal may trigger one measurement or multiple times. Terminals can be triggered or be triggered to perform measurements on demand. The advantage of this setting is that it increases the flexibility of triggering.
  • performing measurements may include measuring the location of the terminal and measuring results of neighboring cells.
  • each cell covered by the network device has a corresponding identification ID, and each identification ID can be used to identify a unique cell.
  • the accuracy and success rate of network switching can be guaranteed, and the continuity of network services can be further ensured, thereby improving the quality of network services.
  • Step S330 the terminal generates measurement information, and sends the measurement information to the source base station through the network device.
  • Step S330 is similar to step S210 and will not be repeated here.
  • Step S340 the terminal receives handover information from the source base station through the network device.
  • the handover information is determined according to the content of the measurement information.
  • the handover information may include network handover trigger time related to terminal location information and candidate cell information related to neighboring cell measurement results.
  • the network handover trigger time instructs the terminal to perform network handover to the candidate cell.
  • the candidate cell and the source cell may be cells covered by the same network device, or may be cells covered by different network devices.
  • the source base station can determine the location of the source cell based on the location information of the terminal, the location information of the network equipment, and the orbital trajectory information of the network equipment according to the beam type being a ground fixed beam. service hours. Then, according to the service time of the source cell, the network handover trigger time for the network handover to the candidate cell is determined.
  • the source base station can use the location information of the terminal, the location information of the first network device, and the orbital trajectory of the first network device The information identifies the service hours of the source cell. Then, according to the service time of the source cell, the triggering time of network handover to the candidate cell covered by the second network device is determined.
  • the orbit track information of the network device is ephemeris information.
  • the position information of the satellite can be determined according to the ephemeris information parameters.
  • the location information of the network device is represented by an ECEF (Earth-Centered, Earth-Fixed, earth-centered) coordinate system.
  • ECEF Earth-Centered, Earth-Fixed, earth-centered
  • step S350 the terminal performs configuration according to the handover information, and feeds back a successful configuration message to the source base station.
  • the source base station if the source base station does not receive the feedback message that the terminal is configured successfully, the source base station will repeatedly send handover information to the terminal, thereby guaranteeing the success rate of network handover performed by the terminal.
  • step S360 the terminal judges whether the current time reaches the network switching trigger time.
  • network switching is triggered if the current time is greater than or equal to the network switching trigger time.
  • step S370 the terminal performs network switching according to the judgment result.
  • the network handover execution process may include that the terminal passes the first network device and the second network device The network device sends synchronization and random access messages to the candidate base station; then sends a handover confirmation message to the candidate base station to perform network handover to the candidate cell.
  • the non-terrestrial network switching method of the present disclosure by introducing a trigger time for network switching, it can overcome the feature that the near-far effect is not obvious in non-terrestrial network scenarios, and improve the accuracy and success rate of network switching.
  • the terminal compared with the method of network switching based on the measurement results of the terminal on the neighboring cells, before the trigger time of the network switching is reached, the terminal does not need to measure the signal quality of the neighboring cells multiple times, which improves the degree of automatic switching of the network and reduces the cost of the terminal. power loss.
  • the network device is a non-terrestrial base station that transmits terrestrial fixed beams with integrated base station functions and/or a non-terrestrial network device with a transparent transmission function.
  • non-terrestrial base stations with integrated base station functions can be satellites, high-altitude aircraft (unmanned aerial systems), ship systems, or other non-terrestrial base stations that can serve as wireless communications, such as non-terrestrial evolved base stations and 5G base stations. Also for example, it may be a Beidou satellite with a transparent transmission function.
  • the methods of the embodiments of the present disclosure especially in the network scenario where non-terrestrial network devices that transmit fixed beams on the ground, only need to perform network configuration and data processing functions at the source base station, and the network devices of the present disclosure only perform transparent transmission, which can achieve low-cost Cost-effective and low-risk switching of non-terrestrial networks can effectively improve network reliability, facilitate promotion and implementation, further simplify network switching methods, and improve user experience.
  • Fig. 4 shows a flowchart of another non-terrestrial network handover method in an embodiment of the present disclosure.
  • the non-terrestrial network switching method includes:
  • the terminal receives beam information from the source base station through the network device.
  • Step S410 is similar to step S310 and will not be repeated here.
  • the terminal triggers measurement in a preset period.
  • the terminal determines whether to periodically trigger measurement reporting according to the beam type.
  • the terminal when the beam type is ground mobile, the terminal periodically reports measurement information.
  • the terminal when the beam type is ground fixed, the terminal does not need to report measurement information periodically.
  • the preset period may be set between 10ms-80ms.
  • performing the measurement may include the measurement of the terminal location and the measurement of the neighbor cell information.
  • each cell covered by the network device has a corresponding identification ID, and each identification ID can be used to identify a unique cell.
  • the terminal generates current measurement information in the current period according to a preset period, and sends the current measurement information to the source base station through the network device.
  • time status information there are two types of time status information, one is current information, which refers to messages in this period; the other is historical information, which refers to messages in a certain period before this period news.
  • the current measurement information may include the location information of the current terminal, and may also include the measurement results of the current neighboring cell.
  • the current location information may be expressed in the form of longitude and latitude coordinates.
  • the neighbor cell measurement results may include the neighbor cell ID and the measured values of the reference signal received power (RSRP) and reference signal received quality (RSRQ) of the neighbor cell.
  • RSRP reference signal received power
  • RSSQ reference signal received quality
  • the terminal receives current handover information from the source base station through the network device, where the current handover information is determined by the current measurement information.
  • the current handover information is determined according to the content of the current measurement information.
  • the current measurement information may include the location information of the terminal in the current period and the current neighbor cell measurement results, and the current handover information may include the current network handover trigger time related to the current terminal location information and the candidate cell information related to the current neighbor cell measurement results. Wherein, the current network handover trigger time instructs the terminal to perform network handover to the candidate cell.
  • the current measurement information meets the preset update condition, the current handover information will be generated; if the current measurement information does not meet the preset update condition, the current handover information will not be generated, and the terminal will not receive the Current handover information to the current period from the source base station.
  • Setting preset update conditions can ensure that in the ground mobile beam type scenario, when the historical handover information becomes invalid, it can be updated immediately, thereby ensuring the validity of the current handover information, thereby ensuring the validity of the network handover configuration information, increasing the network switching reliability.
  • the candidate cell and the source cell may be cells covered by the same network device, or may be cells covered by different network devices.
  • the source base station can use the location information of the terminal in the current period, the current location information of the network equipment, and the current orbit of the network equipment The trajectory information determines the current service time of the source cell. Then, according to the current service time of the source cell, a new network handover trigger time for network handover to the candidate cell is determined.
  • the source base station can base the location information of the terminal in the current period, the current location information of the first network equipment, and the first network equipment
  • the current orbit trajectory information of the source cell determines the current service time of the source cell. Then, according to the current service time of the source cell, the current network handover trigger time of the network handover to the candidate cell covered by the second network device is determined.
  • the orbit track information of the network device is ephemeris information.
  • the exact position of the satellite can be determined according to the ephemeris information parameters.
  • the location information of the network device is represented by an ECEF (Earth-Centered, Earth-Fixed, earth-centered) coordinate system.
  • ECEF Earth-Centered, Earth-Fixed, earth-centered
  • the terminal performs configuration according to the current handover information, and feeds back a configuration success message to the source base station, where the current handover message includes the current network handover trigger time and current candidate cell configuration information.
  • the terminal needs to reconfigure and update each time it receives handover information, so as to ensure the validity and accuracy of network handover trigger time configuration in the ground mobile beam type scenario.
  • the source base station if the source base station does not receive the feedback message that the terminal configuration is successful, the source base station will repeatedly send the current handover information to the terminal, thereby providing a guarantee for the success rate of the terminal performing network handover and further improving Reliability of network switching.
  • the terminal judges whether the current time reaches the current network switching trigger time.
  • Step S460 is similar to S360 in FIG. 3 , and will not be repeated here.
  • the terminal performs network switching according to the determination result.
  • the network handover execution process may include that the terminal sends synchronization and random access messages to the candidate base station through the first network device and the second network device;
  • the base station sends a handover confirmation message to perform network handover to the candidate cell.
  • the non-terrestrial network switching method of the present disclosure by introducing a trigger time for network switching, it can overcome the feature that the near-far effect is not obvious in non-terrestrial network scenarios, and improve the accuracy and success rate of network switching.
  • the terminal compared with the method of performing network handover according to the measurement result of the signal quality of the adjacent cell by the terminal, before the network handover trigger time is reached, the terminal does not need to perform multiple measurements of the signal quality of the adjacent cell, which reduces the power consumption of the terminal.
  • the beam type is ground mobile type, perform the above steps, and update the network handover trigger condition by reporting the current location of the terminal in real time, which can avoid the absolute error caused by the relative movement between the network equipment, the source base station and the terminal, further It can ensure the accuracy and success rate of network handover and the continuity of network services, thereby improving the quality of network services.
  • the network device is a non-terrestrial base station that transmits ground mobile beams with integrated base station functions and/or a non-terrestrial network device with a transparent transmission function.
  • the network equipment can be a medium-orbit satellite or a low-orbit satellite in a non-geostationary orbit, or a high-altitude communication platform or other non-terrestrial base stations that emit ground mobile beams. Therefore, the method of the embodiment of the present disclosure only needs to perform network configuration and data processing functions at the source base station, especially in the network scenario where a non-terrestrial base station that transmits mobile beams is used, and the network device of the present disclosure only performs transparent transmission, which can realize low-cost Low-cost and low-risk switching of non-terrestrial networks can effectively improve network reliability, facilitate promotion and implementation, and further improve the reliability of network switching when network devices and terminals are relatively mobile.
  • Fig. 5 shows a flowchart of another non-terrestrial network handover method in an embodiment of the present disclosure.
  • the methods provided by the embodiments of the present disclosure may be executed by any type of base station.
  • the ground source base station passes through the network device 140 as the execution subject for illustration.
  • the non-terrestrial network switching method includes:
  • the source base station receives measurement information of the terminal through a network device.
  • the network device may be a satellite, a high-altitude aircraft (unmanned aerial vehicle system), a ship system or other non-terrestrial base stations that can serve as wireless communications, such as non-terrestrial evolved base stations and 5G base stations.
  • the source base station receives the measurement information sent by the terminal through the network device; if the beam type is ground mobile, the source base station receives the measurement information sent by the terminal at a preset period information.
  • each cell covered by the network device has a corresponding identification ID, and each identification ID can be used to identify a unique cell.
  • the measurement information may include location information of the terminal, and may also include measurement results of neighboring cells.
  • the location information may be expressed in the form of latitude and longitude coordinates.
  • the source base station determines handover information according to the measurement information, where the handover information includes network handover trigger time and candidate cell configuration information, and the handover information is used to instruct the terminal to perform network handover to the candidate cell at the network handover trigger time.
  • the signal measurement information may include an ID of a neighboring cell and measured values of Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ) of the neighboring cell.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • the handover information includes network handover trigger time and candidate cell configuration information, and the handover information is used to instruct the terminal to perform network handover to the candidate cell at the network handover trigger time.
  • the source base station determines the service time of the source cell according to the terminal location information in the measurement information, the location information of the network equipment, and the orbit track information of the network equipment, and then determines the network handover trigger according to the service time of the source cell time.
  • the network device may be a satellite base station, and the orbital track information of the network device may be ephemeris information, thereby obtaining the position information of the network device at the signal transmission time t (GPS time), including but not limited to The following methods:
  • the service time T service of the source cell is determined according to the terminal location information in the measurement information, the location information of the network equipment, and the track trajectory information of the network equipment, which can be expressed as:
  • the source base station sends the handover information to the terminal through the network device.
  • the source base station after the source base station sends the handover information to the terminal through the network device, it further includes judging whether a feedback message indicating that the terminal has successfully configured the handover information is received within a predetermined time, and if the feedback message is received, Then the source base station ends the current network handover process; if the feedback message is not received, the source base station defaults that sending the handover message fails, and resends the handover message until receiving the feedback message that the terminal configuration is successful.
  • the network handover trigger time determined by the source base station is used to assist the terminal to automatically trigger the network handover, especially when the signal quality difference between the center of the cell and the edge of the cell is not large, and the network handover cannot be performed through the measurement information of the channel In the case of network switching, the accuracy and success rate of network switching are improved.
  • the network device is a non-terrestrial base station with integrated base station functions and/or a non-terrestrial network device with a transparent transmission function.
  • non-terrestrial base stations with integrated base station functions can be satellites, high-altitude aircraft (unmanned aerial systems), ship systems, or other non-terrestrial base stations that can serve as wireless communications, such as non-terrestrial evolved base stations and 5G base stations. Also for example, it may be a Beidou satellite with a transparent transmission function. Another example is some non-terrestrial network devices that do not have base station functions and only support transparent transmission functions.
  • this method only needs to perform network configuration and data processing functions at the source base station, and the network equipment of the present disclosure only performs transparent transmission, which can achieve low cost , Switching non-terrestrial networks with low risk can effectively improve network reliability and facilitate promotion and implementation.
  • FIG. 6 shows a flowchart of another non-terrestrial network switching method in an embodiment of the present disclosure. As shown in FIG. 6, the non-terrestrial network switching method includes:
  • the source base station sends beam information to the terminal through the network device.
  • the source base station or network device may broadcast periodically through a System Information Block (SIB) message or define a new SIB message.
  • SIB System Information Block
  • the source base station or network equipment may also add the beam information to other aperiodic broadcast SIB messages and send them to the terminal.
  • the beam information may include a beam type, wherein the beam type may further include earth-moving and earth-fixed.
  • the source base station receives the current measurement information of the terminal in the current period through the network device in a preset period.
  • time status information there are two types of time status information, one is current information, which refers to messages in this period; the other is historical information, which refers to messages in a certain period before this period news.
  • the preset period may be set between 10ms-80ms.
  • the measurement information may include terminal location information and measurement results of neighboring cells.
  • each cell covered by the network device has a corresponding identification ID, and each identification ID can be used to identify a unique cell.
  • the neighbor cell information includes neighbor cell ID, measured values of reference signal received power (RSRP) and reference signal received quality (RSRQ) of the neighbor cell.
  • RSRP reference signal received power
  • RSSQ reference signal received quality
  • the source base station judges whether there is historical handover information before the current period, and the historical handover information includes historical network handover trigger time and historical candidate cell configuration information.
  • historical switching information is determined according to historical measurement information sent before the current period.
  • the historical measurement information is the measurement information sent by the source base station receiving the terminal before the current period according to a preset period.
  • the historical measurement information includes historical terminal position information of a certain period before the current period, and historical neighbor cell measurement results of a certain period before the current period.
  • the historical handover information may include historical candidate cell information determined by the source base station based on historical neighbor cell measurement results and historical network handover trigger time determined based on historical terminal location information.
  • the historical network handover trigger time may be determined by the source base station based on the cell service time determined by the terminal location information, network device location information, and network device orbit track information of a period before the current period .
  • if there is historical handover information it is further judged whether to update the handover information; if there is no historical handover information, it is assumed that the measurement information from the terminal is received for the first time by default, and the source base station directly according to The measurement information generates handover information including a network handover trigger time, which is sent to the terminal for network handover configuration.
  • step S650 is performed. If the update condition is not satisfied, the latest switching information is not generated, and the current switching information is not updated.
  • an update condition of switching information may be set according to current measurement information and historical switching information.
  • Setting preset update conditions can ensure that in the ground mobile beam type scenario, when the historical handover information becomes invalid, it can be updated immediately, thereby ensuring the validity of the current handover information, thereby ensuring the validity of the network handover configuration information, increasing the network switching reliability.
  • the source base station determines current handover information according to the measurement information.
  • the source base station determines the current handover information directly according to the measurement information.
  • the source base station determines the current handover information according to the current measurement information to update the historical handover information.
  • the current handover information includes the network handover time determined according to the current measurement information and candidate cell information.
  • the source base station sends the current handover information to the terminal through the network device.
  • This step is similar to step S530 in FIG. 5 and will not be repeated here.
  • the non-terrestrial network switching method of the present disclosure by introducing a trigger time for network switching, it can overcome the feature that the near-far effect is not obvious in non-terrestrial network scenarios, and improve the accuracy and success rate of network switching.
  • the source base station regularly receives the real-time location of the terminal, which can update the network handover conditions in real time, avoiding the absolute error caused by the relative movement between the network equipment, the source base station and the terminal, and further ensuring the accuracy and success rate of network handover. Ensure the continuity of network services, thereby improving the quality of network services.
  • the network device is a non-terrestrial base station with integrated base station functions and/or a non-terrestrial network device with a transparent transmission function.
  • the beam type in the beam information is ground Fixed type; if the network equipment is a medium-orbit satellite or a low-orbit satellite in a non-stationary orbit, or a high-altitude communication platform or other non-terrestrial base stations that emit ground mobile beams and/or non-terrestrial network equipment with transparent transmission functions, the beam information
  • the beam type in is land mobile. This makes the disclosed method more flexible and has a wide range of application scenarios.
  • the embodiment of the present disclosure only needs to perform network configuration and data processing functions at the source base station, and the network device of the present disclosure only performs transparent transmission, which can realize low-cost and low-risk switching of non-terrestrial networks, and can effectively improve network reliability , which is convenient for popularization and implementation, and can further improve the reliability of network switching when the network device and the terminal are relatively mobile.
  • FIG. 7 shows a flow chart of S640 in the non-terrestrial network handover method shown in FIG. 6 in the embodiment of the present disclosure, the source base station judges whether the current measurement information satisfies the update condition. As shown in Figure 7, including:
  • the source base station determines the current cell service time according to the current measurement information.
  • time status information there are two types of time status information, one is current information, which refers to messages in this period; the other is historical information, which refers to messages in a certain period before this period news.
  • the current measurement information may include current location information measured by the terminal within this period, current location information of the network device, and track track information of the network device.
  • the source base station can determine the service time of the source cell according to the location information of the terminal, the location information of the network equipment, and the orbit track information of the network equipment, and then determine the trigger time of network handover according to the service time of the source cell.
  • the implementation method is similar to the method for calculating the service time of the cell in S520 in FIG. 5 , and will not be repeated here.
  • the source base station judges whether the absolute difference between the current cell service time and the historical network handover trigger time exceeds an update threshold.
  • the historical network handover trigger time is determined according to historical measurement information.
  • the update threshold is determined by the source base station according to the configuration of the network device, and the update threshold can be changed or fixed. Furthermore, the personalized customization of the switching information update mode by the network equipment is realized, the flexibility of data update is improved, and the requirements of different network equipment are satisfied.
  • the absolute value of the difference between the two is taken.
  • the source base station determines the current handover information according to the current measurement information, where the current handover information includes the current cell service time, the current network handover trigger time and current candidate cell information.
  • the absolute difference is less than or equal to the update threshold, no new current handover information is generated according to the current measurement message, and the handover information is not updated.
  • the source base station can update the location information of the terminal and network equipment in real time, thereby updating the network switching time in real time, improving the accuracy and success rate of network switching in the ground mobile beam type scenario, and further ensuring the network Service continuity improves network service quality.
  • the network device is a non-terrestrial base station with integrated base station functions and/or a non-terrestrial network device with a transparent transmission function.
  • the method of the embodiment of the present disclosure only needs to perform network configuration and data processing functions at the source base station, and the network device of the present disclosure only performs transparent transmission, which can realize low-cost and low-risk switching of non-terrestrial networks, and can effectively improve network reliability , which is convenient for promotion and implementation, further simplifies the network switching method, and improves user experience.
  • Fig. 8 shows a schematic diagram of a scenario of a non-terrestrial network handover method in an embodiment of the present disclosure.
  • the terminal 820 performs non-terrestrial network handover within the network coverage of the same network device 840.
  • Each cell corresponding to the network device has a corresponding identifier, and each identifier can It is used to uniquely identify the cell covered by the network device.
  • the terminal 820 implements network handover from the source cell 810 to the candidate cell 811 through scheduling by the same network device 840 .
  • the network equipment can be a non-terrestrial base station with an integrated base station function that emits fixed beams on the ground and/or a non-terrestrial network equipment with a transparent transmission function.
  • the network equipment can be a satellite, a high-altitude aircraft (UAV system), a ship system or other non-terrestrial base stations that can be used as wireless communication, such as non-terrestrial evolved base stations and 5G base stations, or non-terrestrial network devices that only have transparent transmission functions but do not have base station functions
  • the method for the terminal 820 to perform network handover within the coverage of the network device 840 may include: the terminal 820 receives beam information from the source base station 830 through the network device 840 .
  • the terminal 820 triggers the position measurement and the measurement results of the adjacent cells to generate measurement information, and sends the measurement information to the source base station 830 through the network device 840 .
  • the source base station determines handover information through the measurement information, and the handover information includes network handover time and configuration information of the candidate cell 811 .
  • the terminal 820 receives handover information from the source base station 830 through the network device 840 .
  • the terminal 820 performs configuration according to the handover information, and feeds back a configuration success message to the source base station 830 .
  • the terminal 820 judges whether the current time reaches the network switching trigger time, and if the current time reaches the network switching trigger time, the terminal performs network switching to the candidate cell 811 .
  • the terminal 820 when the beam information is ground mobile, the terminal 820 triggers position measurement and neighbor cell measurement to generate current measurement information at a preset period, and sends the current measurement information to the source base station 830 through the network device 840 .
  • the current information refers to the news in this period; the opposite is the historical information, which refers to the news in a certain period before the current period.
  • the source base station judges whether there is historical handover information, if there is no historical handover information, then determines the current handover information through the current measurement information, the current handover information includes the current network handover time and the current candidate cell 811, and sends the current handover information to the Terminal 820; if there is historical measurement information, the source base station judges whether the update condition is satisfied according to the current measurement information, and if the update condition is satisfied, the source base station determines the current handover information through the current measurement information to update the handover information, the current handover information includes the current network The switching time and the current candidate cell 811, and the current switching information is sent to the terminal 820 through the network equipment.
  • the source base station realizes the seamless network handover of the terminal in the edge area of the cell covered by the same network equipment by scheduling the cells covered by the network equipment, so as to improve the success rate and accuracy of network handover, thereby improving the continuity of network services and improve network service quality.
  • FIG. 9 shows a schematic diagram of another non-terrestrial network handover method in an embodiment of the present disclosure.
  • the terminal 920 performs network handover from the source cell 910 covered by the network device 940 to the source cell 911 covered by the network device 941, and each cell corresponding to each network device has Corresponding identifiers, each identifier can be used to uniquely identify a cell covered by the network device.
  • the network equipment can be a non-terrestrial base station with an integrated base station function that emits fixed beams on the ground and/or a non-terrestrial network equipment with a transparent transmission function.
  • the network equipment can be a satellite, a high-altitude aircraft (UAV system), a ship system or other non-terrestrial base stations that can be used as wireless communication, such as non-terrestrial evolved base stations and 5G base stations, or non-terrestrial network devices that only have transparent transmission functions but do not have base station functions
  • the method for the terminal 920 to perform network handover within the coverage of the network device 940 may include: the terminal 920 receives beam information from the source base station 930 through the network device 940 .
  • the terminal 920 triggers location measurement and measurement of adjacent cells to generate measurement information, and sends the measurement information to the source base station 930 through the network device 940 .
  • the source base station determines handover information through measurement information, and the handover information includes network handover time and candidate cell 911 configuration information.
  • the terminal 920 receives handover information from the source base station 930 through the network device 940 .
  • the terminal 920 performs configuration according to the handover information, and feeds back a successful configuration message to the source base station 930, where the handover information includes network handover trigger time and candidate cell configuration information.
  • the terminal 920 judges whether the current time reaches the network switching trigger time, and if the current time reaches the network switching trigger time, the terminal executes network switching to the candidate cell 911 .
  • the terminal 920 when the beam information is ground mobile, the terminal 920 triggers position measurement and neighbor cell measurement to generate current measurement information at a preset period, and sends the current measurement information to the source base station 930 through the network device 940 .
  • the current information refers to the news in this period; the opposite is the historical information, which refers to the news in a certain period before the current period.
  • the source base station judges whether there is historical handover information. If there is no historical handover information, the source base station determines the current handover information through the current measurement information.
  • the current handover information includes the current network handover time and the configuration information of the current candidate cell 911 covered by the candidate network device 941 , and send the current switching information to the terminal 920 through the network device.
  • the source base station judges whether the update condition is satisfied according to the current measurement information. If the update condition is met, the source base station determines the current handover information through the current measurement information to update the handover information.
  • the current handover information includes the current network handover time and The current candidate cell, and the current switching information is sent to the terminal 820 through the network device.
  • the network handover execution process may include that the terminal 920 sends synchronization and random access messages to the candidate base station 931 through the first network device 940 and the second network device 941; and then sends a handover confirmation message to the candidate base station 931 to perform The network switches to the candidate cell.
  • the source base station realizes the seamless network handover of the terminal in the edge area of the cell covered by the two network equipments by scheduling network equipment, so as to improve the success rate and accuracy of network handover, thereby improving the continuity of network services. Improve network service quality.
  • the methods of the embodiments of the present disclosure help to simplify the way in which a terminal performs network handover between cells covered by different non-terrestrial network devices, so as to improve network service quality and user experience.
  • Fig. 10 shows a schematic diagram of signaling interaction of a non-terrestrial network handover method in an embodiment of the present disclosure.
  • the signaling interaction of the non-terrestrial network handover method provided in this embodiment may include the following steps:
  • the terminal generates measurement information, and sends the measurement information to the network device.
  • the network device is a non-terrestrial base station with integrated base station functions and/or a non-terrestrial network device with a transparent transmission function.
  • network equipment can be satellites, high-altitude aircraft (unmanned aerial vehicle systems), ship systems, or other non-terrestrial base stations that can be used as wireless communication, such as non-terrestrial evolved base stations and 5G base stations, etc., or only have transparent transmission functions and do not have base station functions. non-terrestrial network equipment.
  • the terminal sends the measurement information including the location of the terminal and the measurement results of neighboring cells to the network device through a measurement report (Measurement Report) message.
  • a measurement report Measurement Report
  • the network device sends the measurement information to the source base station.
  • the network device transparently transmits the measurement report from the terminal to the source base station.
  • the source base station determines handover information according to the measurement information, where the handover information includes network handover trigger time and candidate cell configuration information, and the handover information is used to instruct the terminal to perform network handover to the candidate cell at the network handover trigger time.
  • the source base station determines the service time of the cell according to the location information of the terminal, the location information of the network equipment, and the track track information of the network equipment, and then determines the network switching time according to the service time of the cell.
  • the source base station receives measurement information at a preset period, so as to generate new current handover information and update historical handover information.
  • the source base station may set update conditions to determine whether to generate current handover information to update historical handover information. When the received current measurement information satisfies the update condition, the current handover information is generated to update the historical handover information.
  • the source base station sends handover information to the network device.
  • the source base station may also send a handover request to the candidate base station, so as to ensure robustness of non-terrestrial network handover.
  • the candidate base station sends a handover confirmation to the source base station as a response.
  • the network device sends switching information to the terminal.
  • the network device transparently transmits the handover information from the source base station to the terminal.
  • the network device sends the switching information to the terminal through a radio resource connection (Radio Resource Control, RRC) message.
  • RRC Radio Resource Control
  • the terminal performs configuration according to the switching information.
  • the terminal sends a configuration success message to the network device.
  • the terminal after the terminal is successfully configured, the terminal sends a configuration completion signaling to the source base station through the network device.
  • the network device sends the configuration success message to the source base station.
  • the network device transparently transmits the configuration success message to the source base station.
  • the terminal judges whether the current time reaches the trigger time of the network handover, and the terminal executes the network handover to the candidate cell according to the judgment result.
  • the terminal when the terminal judges that the current time reaches the network handover trigger, the terminal sends a handover request (Handover Request) signaling to the candidate cell to perform the handover.
  • a handover request Handover Request
  • the non-terrestrial network switching method of the present disclosure by introducing a trigger time for network switching, it can overcome the feature that the near-far effect is not obvious in non-terrestrial network scenarios, and improve the accuracy and success rate of network switching.
  • the terminal compared with the method of performing network handover based on the measurement results of the terminal on neighboring cells, before the trigger time of network switching is reached, the terminal does not need to perform multiple measurement reports on neighboring cells, which reduces the signaling overhead of the terminal and further improves the The degree of automatic switching of the network reduces the power loss of the terminal.
  • the network device of the present disclosure performs transparent transmission , can achieve low-cost, low-risk switching of non-terrestrial networks, can effectively improve network reliability, and facilitate promotion and implementation.
  • FIG. 11 shows a structural block diagram of a non-terrestrial network switching device in an embodiment of the present disclosure
  • the non-terrestrial network switching device 1100 provided in this embodiment includes the following modules, including:
  • the sending module 1120 is used for the terminal to generate measurement information, and send the measurement information to the source base station through the network equipment;
  • the receiving module 1140 is used for the terminal to receive handover information from the source base station through the network equipment, and the handover information is determined by the measurement information
  • the configuration module 1160 is used for the terminal to configure according to the handover information, wherein the handover information includes network handover trigger time and candidate cell configuration information;
  • the handover module 1180 is used for the terminal to judge whether the current time reaches the network handover trigger time, and the terminal according to the judgment result Perform network handover to the candidate cell.
  • network switching is triggered by using the trigger time of network switching, especially when the signal quality difference between the center of the cell and the edge of the cell is not large and the network switching cannot be performed through the measurement information of the channel, the accuracy of network switching is improved. sex and success.
  • the terminal compared with the method of performing network handover according to the measurement result of the signal quality of the adjacent cell by the terminal, before the network handover trigger time is reached, the terminal does not need to perform multiple measurements of the signal quality of the adjacent cell, which reduces the power consumption of the terminal.
  • FIG. 12 shows a structural block diagram of another non-terrestrial network switching device 1200 in an embodiment of the present disclosure; as shown in FIG. 12 , the non-terrestrial network switching device 1200 provided in this embodiment includes the following modules, including:
  • the receiving module 1210 is used for the source base station to receive the measurement information of the terminal through the network equipment;
  • the determining module 1220 is used for the source base station to determine handover information according to the measurement information, wherein the handover information includes network handover trigger time and candidate cell configuration information, and is used for handover information To instruct the terminal to perform network handover to the candidate cell at the trigger time of the network handover;
  • the sending module 1230 is used for the source base station to send handover information to the terminal through the network equipment.
  • the network switching trigger time determined by the source base station is used to assist the terminal to automatically trigger network switching, especially when the signal quality difference between the cell center and the cell edge is not large and the network switching cannot be performed by channel measurement information, improving The accuracy and success rate of network switching are improved.
  • FIG. 13 An electronic device 1300 according to this embodiment of the present invention is described below with reference to FIG. 13 .
  • the electronic device 1300 shown in FIG. 13 is only an example, and should not limit the functions and scope of use of this embodiment of the present invention.
  • electronic device 1300 takes the form of a general-purpose computing device.
  • the components of the electronic device 1300 may include, but are not limited to: the above-mentioned at least one processing unit 1310, the above-mentioned at least one storage unit 1320, at least one transceiver 1370 for communicating with other devices, connecting different system components (including the storage unit 1320 and the processing unit) 1310) of the bus 1330.
  • the storage unit stores program codes, and the program codes can be executed by the processing unit 1310, so that the processing unit 1310 executes various exemplary methods according to the present invention described in the "Exemplary Methods" section of this specification. Implementation steps.
  • the processing unit 1310 may execute the non-terrestrial network handover method 200 as shown in FIG.
  • the handover information of the source base station is determined by the measurement information;
  • S230 the terminal configures according to the handover information, and feeds back the configuration success message to the source base station, wherein the handover information includes network handover trigger time and candidate cell configuration information;
  • S240 The terminal judges whether the current time reaches the network handover trigger time, and the terminal performs network handover to the candidate cell according to the judgment result.
  • the storage unit 1320 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 1321 and/or a cache storage unit 1322 , and may further include a read-only storage unit (ROM) 1323 .
  • RAM random access storage unit
  • ROM read-only storage unit
  • Storage unit 1320 may also include programs/utilities 1324 having a set (at least one) of program modules 1325, such program modules 1325 including but not limited to: an operating system, one or more application programs, other program modules, and program data, Implementations of networked environments may be included in each or some combination of these examples.
  • Bus 1330 may represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local area using any of a variety of bus structures. bus.
  • the electronic device 1300 may also communicate with one or more external devices (such as keyboards, pointing devices, Bluetooth devices, etc.), and may also communicate with one or more devices that enable the user to interact with the electronic device, and/or communicate with the device that enables the user to interact with the electronic device.
  • Electronic device 1300 is capable of communicating with any device (eg, router, modem, etc.) that communicates with one or more other computing devices. Such communication may occur through input/output (I/O) interface 1350 .
  • the electronic device 1300 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet) through the network adapter 1360 .
  • networks such as a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet
  • network adapter 1360 communicates with other modules of the electronic device via bus 1330 .
  • other hardware and/or software modules may be used in conjunction with electronic device 1300, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives And data backup storage system, etc.
  • An embodiment of the present disclosure further provides a computer program product, which implements the steps of the non-terrestrial network switching method in any of the above method embodiments when the computer program product is executed by a computer.
  • the example implementations described here can be implemented by software, or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of software products, and the software products can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.) or on the network , including several instructions to make a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) execute the method according to the embodiments of the present disclosure.
  • a computing device which may be a personal computer, a server, a terminal device, or a network device, etc.
  • a computer-readable storage medium on which a program product capable of implementing the above-mentioned method in this specification is stored.
  • various aspects of the present invention can also be implemented in the form of a program product, which includes program code, and when the program product is run on a terminal device, the program code is used to make the The terminal device executes the steps according to various exemplary embodiments of the present invention described in the "Exemplary Method" section above in this specification.
  • a program product for implementing the above method according to the embodiment of the present invention, it may adopt a portable compact disc read-only memory (CD-ROM) and include program codes, and may run on a terminal device such as a personal computer.
  • CD-ROM compact disc read-only memory
  • the program product of the present invention is not limited thereto.
  • a readable storage medium may be any tangible medium containing or storing a program, and the program may be used by or in combination with an instruction execution system, apparatus or device.
  • the program product may reside on any combination of one or more readable media.
  • the readable medium may be a readable signal medium or a readable storage medium.
  • the readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: electrical connection with one or more conductors, portable disk, hard disk, random access memory (RAM), read only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.
  • a computer readable signal medium may include a data signal carrying readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.
  • Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
  • Program code for carrying out the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages—such as Java, C++, etc., as well as conventional procedural programming languages. Programming language - such as "C" or a similar programming language.
  • the program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server to execute.
  • the remote computing device may be connected to the user computing device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., using an Internet service provider). business to connect via the Internet).
  • LAN local area network
  • WAN wide area network
  • Internet service provider an Internet service provider
  • steps of the methods of the present disclosure are depicted in the drawings in a particular order, there is no requirement or implication that the steps must be performed in that particular order, or that all illustrated steps must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step for execution, and/or one step may be decomposed into multiple steps for execution, etc.
  • the technical solutions according to the embodiments of the present disclosure can be embodied in the form of software products, and the software products can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.) or on the network , including several instructions to make a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) execute the method according to the embodiments of the present disclosure.
  • a non-volatile storage medium which can be CD-ROM, U disk, mobile hard disk, etc.
  • a computing device which may be a personal computer, a server, a mobile terminal, or a network device, etc.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente divulgation concerne un procédé et un appareil de transfert de réseau non terrestre, un support d'enregistrement et un dispositif électronique. Le procédé consiste à : générer des informations de mesure par un terminal, et envoyer les informations de mesure à une station de base source au moyen d'un dispositif de réseau ; recevoir, par le terminal, des informations de transfert de la station de base source au moyen du dispositif de réseau, les informations de transfert étant déterminées par les informations de mesure ; conformément aux informations de transfert, exécuter la configuration par le terminal et renvoyer un message de réussite de configuration à la station de base source, les informations de transfert comprenant un temps de déclenchement de transfert de réseau et des informations de configuration de cellule candidate ; déterminer, par le terminal, si le temps courant a atteint le temps de déclenchement de transfert de réseau, et exécuter, par le terminal, un transfert de réseau vers une cellule candidate conformément au résultat de détermination. Le taux de réussite et la précision du transfert de réseau sont augmentés, la continuité du service de réseau est encore améliorée, et la qualité de service de réseau est augmentée.
PCT/CN2022/107521 2021-08-03 2022-07-22 Procédé et appareil de transfert de réseau non terrestre, support d'enregistrement et dispositif électronique Ceased WO2023011225A1 (fr)

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CN202110888175.0A CN115707044B (zh) 2021-08-03 2021-08-03 非陆地网络切换方法及装置、存储介质及电子设备
CN202110888175.0 2021-08-03

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WO2025092666A1 (fr) * 2023-11-03 2025-05-08 华为技术有限公司 Procédé de communication, procédé de synchronisation et appareil de communication

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CN111866970A (zh) * 2019-04-30 2020-10-30 华为技术有限公司 上报位置信息的方法和装置
WO2021065748A1 (fr) * 2019-10-02 2021-04-08 Sharp Kabushiki Kaisha Procédé et appareil pour effectuer un transfert d'un ue multi-usim à compatibilité radio sur des systèmes identiques ou différents
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WO2022067725A1 (fr) * 2020-09-30 2022-04-07 北京小米移动软件有限公司 Procédé de commutation de ressource dans le domaine fréquentiel, dispositif, et support de stockage lisible par ordinateur

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CN111866970A (zh) * 2019-04-30 2020-10-30 华为技术有限公司 上报位置信息的方法和装置
WO2021065748A1 (fr) * 2019-10-02 2021-04-08 Sharp Kabushiki Kaisha Procédé et appareil pour effectuer un transfert d'un ue multi-usim à compatibilité radio sur des systèmes identiques ou différents
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WO2025031200A1 (fr) * 2023-08-10 2025-02-13 华为技术有限公司 Procédé de transfert intercellulaire, appareil et système
WO2025092666A1 (fr) * 2023-11-03 2025-05-08 华为技术有限公司 Procédé de communication, procédé de synchronisation et appareil de communication

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