Method for determining transport network layer address of base station, and apparatus

Abstract

Provided in the embodiments of the present application are a method for determining a transport network layer address of a base station, and an apparatus, which are applied to base stations. The method comprises: acquiring transport network layer addresses associated with a target ground area; and when the base station operates in the target ground area, determining a target transport network layer address associated with the target ground area as the transport network layer address of the base station. The present invention solves the problem of large network overheads caused by excessive signaling interaction in non-terrestrial networks.

Description

Method and apparatus for determining the transmission network layer address of a base station

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411649076.7, filed on November 18, 2024, entitled "Method and Apparatus for Determining the Transmission Network Layer Address of a Base Station", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of communications, and more specifically, to a method and apparatus for determining the transmission network layer address of a base station. Background Technology

[0004] In non-terrestrial networks (NTNs), base stations are deployed on mobile platforms in the air, such as satellites or airships. The biggest difference between NTNs and terrestrial networks is that, in addition to terminal movement, base stations also move at high speeds. This high-speed movement of base stations leads to constant changes in the relationships between base stations, terminals, gateways, and the core network, making NTNs a highly dynamic network topology.

[0005] Due to the high-speed movement of base stations, the base stations serving different ground areas will change. This leads to frequent signaling interactions and increases network overhead.

[0006] There is currently no effective solution to the above problems. Summary of the Invention

[0007] This application provides a method and apparatus for determining the transmission network layer address of a base station, so as to at least solve the problem of high network overhead caused by a lot of signaling interaction in non-terrestrial networks.

[0008] According to one embodiment of this application, a method for determining the transmission network layer address of a base station is provided, applied to a base station, which is a mobile platform deployed in the air, including: obtaining the transmission network layer address associated with a target ground area; and determining the target transmission network layer address associated with the target ground area as the transmission network layer address of the base station when the base station operates in the target ground area.

[0009] In one exemplary embodiment, obtaining the transport network layer address associated with a target ground area includes: obtaining one or more transport network layer addresses associated with the ground area, wherein different altitudes are associated with different transport network layer addresses.

[0010] In one exemplary embodiment, determining the target transmission network layer address associated with the target ground area as the transmission network layer address of the base station includes: obtaining the target height of the base station; and determining the target transmission network layer address corresponding to the target height from one or more transmission network layer addresses associated with the target ground area.

[0011] In one exemplary embodiment, determining the target transmission network layer address corresponding to the target height from one or more transmission network layer addresses associated with the target ground area includes: obtaining a target mapping table, wherein the target mapping table records one or more transmission network layer addresses associated with the target ground area; and determining the transmission network layer address corresponding to the target height in the target mapping table as the target transmission network layer address.

[0012] In one exemplary embodiment, the method further includes determining a ground area based on at least one of the following: network identifier, ground physical area range.

[0013] In one exemplary embodiment, obtaining the transport network layer address associated with a target ground region includes: obtaining the transport network layer address associated with each of a plurality of ground regions, wherein the plurality of ground regions includes the target ground region.

[0014] According to one embodiment of this application, a method for determining the transmission network layer address of a base station is provided, applied to a core network, comprising: obtaining transmission network layer addresses associated with each of a plurality of ground areas; and changing the transmission network layer address of the base station according to the transmission network layer addresses associated with each ground area when the ground area served by the base station or the altitude of the base station changes, wherein the transmission network layer address of the base station is determined based on the transmission network layer addresses associated with the ground areas served by the base station.

[0015] In an exemplary embodiment, when the ground area served by the base station changes, the transmission network layer address of the base station is changed according to the transmission network layer address associated with each ground area. This includes: when the base station moves from a first ground area to a second ground area, the transmission network layer address of the base station is changed from a first transmission network layer address to a second transmission network layer address, wherein the first transmission network layer address is associated with the first ground area, the second transmission network layer address is associated with the second ground area, and the transmission network layer addresses associated with different ground areas are different.

[0016] In one exemplary embodiment, when the altitude of the base station changes, the transmission network layer address of the base station is changed according to the transmission network layer address associated with each ground area. This includes: when the base station moves from a first altitude to a second altitude in the ground area it currently serves, the transmission network layer address of the base station is changed from a third transmission network layer address to a fourth transmission network layer address, wherein the third transmission network layer address is associated with the first altitude, the fourth transmission network layer address is associated with the second altitude, and different altitudes are associated with different transmission network layer addresses.

[0017] In one exemplary embodiment, when the altitude of the base station changes, the transmission network layer address of the base station is changed according to the transmission network layer address associated with each ground area. This includes: when the base station moves from the third altitude of the third ground area to the fourth altitude of the fourth ground area, the transmission network layer address of the base station is changed from the fifth transmission network layer address to the sixth transmission network layer address, wherein the fifth transmission network layer address is associated with the third altitude of the third ground area, and the sixth transmission network layer address is associated with the fourth altitude of the fourth ground area.

[0018] According to another embodiment of this application, an apparatus for determining the transmission network layer address of a base station is provided. The apparatus is applied to a base station, which is a mobile platform deployed in the air. The apparatus includes: a first acquisition module configured to acquire the transmission network layer address associated with a target ground area; and a determination module configured to determine the target transmission network layer address associated with the target ground area as the transmission network layer address of the base station when the base station moves to the target ground area.

[0019] According to another embodiment of this application, an apparatus for determining and changing the transmission network layer address of a base station is provided, applied to a core network, comprising: a second acquisition module configured to acquire transmission network layer addresses associated with each of a plurality of ground areas; and a change module configured to change the transmission network layer address of the base station according to the transmission network layer addresses associated with each ground area when the ground area served by the base station or the altitude of the base station changes, wherein the transmission network layer address of the base station is determined based on the transmission network layer addresses associated with the ground areas served by the base station.

[0020] According to another embodiment of this application, a computer-readable storage medium is also provided, in which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the method described in any of the preceding claims.

[0021] According to yet another embodiment of this application, an electronic device is also provided, including a memory and a processor, wherein a computer program is stored in the memory and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0022] According to yet another embodiment of this application, a computer program product is also provided, including a computer program that, when executed by a processor, implements the steps of the method described in any of the preceding claims.

[0023] This application obtains the transmission network layer address associated with the target ground area; when the base station operates in the target ground area, the target transmission network layer address associated with the target ground area is determined as the transmission network layer address of the base station.

[0024] Because the transport network layer address used by the core network to send downlink data to the terminal via base stations is the transport network layer address associated with the terrestrial area, the transport network layer address used by the core network to send downlink data to the terminal remains static even if the base stations serving the terrestrial area change. This solves the problem of high network overhead caused by excessive signaling interaction in non-terrestrial networks in existing technologies, achieving the effect of reducing signaling interaction and lowering network overhead. Attached Figure Description

[0025] Figure 1 is a schematic diagram of a non-terrestrial network deployment according to an embodiment of this application;

[0026] Figure 2 is a schematic diagram of the control plane protocol stack of the on-board regeneration mode according to an embodiment of this application;

[0027] Figure 3 is a schematic diagram of the user plane protocol stack in the on-board regeneration mode according to an embodiment of this application;

[0028] Figure 4 is a flowchart of a method for determining the transmission network layer address of a base station according to an embodiment of this application;

[0029] Figure 5 is a flowchart of a method for determining the transmission network layer address of a base station according to another embodiment of this application;

[0030] Figure 6 is a static network topology diagram according to an embodiment of this application;

[0031] Figure 7 is a structural block diagram of an apparatus for determining the transmission network layer address of a base station according to an embodiment of this application;

[0032] Figure 8 is a structural block diagram of an apparatus for determining the transmission network layer address of a base station according to another embodiment of this application. Detailed Implementation

[0033] The embodiments of this application will be described in detail below with reference to the accompanying drawings and examples.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0035] Figure 1 illustrates a non-terrestrial network deployment. The service link is the wireless link between the terminal and the base station, the feeder link is the wireless link between the base station and the gateway station, and the inter-satellite link is the wireless link between base stations. The base station provides connectivity between the service link and the feeder link.

[0036] NTN supports the following types of service links:

[0037] Earth-fixed: The beam continuously covers the same geographic area (e.g., GSO satellite);

[0038] Quasi-Earth-fixed: The beam covers one geographic area in a finite period and another geographic area in another period (e.g., the tunable beam generated by the NGSO satellite);

[0039] Earth-moving: The beam region slides across the Earth's surface (e.g., a fixed or untuned beam generated by an NGSO satellite).

[0040] The control plane protocol stack of the on-board regeneration mode is shown in Figure 2. The Stream Control Transmission Protocol (SCTP) and below are the Transport Network Layer (TNL), and NG-AP and above are the Radio Network Layer (RNL).

[0041] The user plane protocol stack in on-board regeneration mode is shown in Figure 3. User Datagram Protocol (UDP) and below constitute the transport network layer, while GTP-U and above constitute the wireless network layer. The transport network layer is based on IP transmission and supports IPv4 and IPv6.

[0042] An NTN Gateway is a transport network layer node that supports all necessary transport protocols. It is responsible for forwarding control plane Internet Protocol (IP) packets between the satellite and the Access and Mobility Management Function (AMF), as well as user plane IP packets between the satellite and the User Plane Function (UPF). The Gateway and the satellite layer use the SRI interface, while the Gateway and the core network layer use the L1 / L2 interface.

[0043] Under current technology, once the base station is deployed, the IP address allocated at the transport network layer remains unchanged. For the control plane NG-AP interface, at least one SCTP connection exists for non-UE associated signaling, and one or more SCTP connections exist for UE associated signaling. SCTP is transmitted over IP. For the user plane NG-U interface, the transport bearer is identified by GTP-U TEID (Tunnel Endpoint IDentifier) ​​and IP address.

[0044] The biggest difference between non-terrestrial networks and terrestrial networks is that, in addition to terminal movement, base stations also move at high speeds. The high-speed movement of satellites causes the relationships between satellites and terminals, satellites and gateway stations, and satellites and the core network to constantly change. Therefore, non-terrestrial networks have a highly dynamic network topology. If the base station's transmission network layer IP address remains fixed, then when a new base station moves to the current terrestrial service area, for the NG-U interface, the base station IP address used by the core network UPF to send downlink data to the base station needs to be changed, i.e., a path switch procedure is required; for the NG-C interface, the base station IP address used by the core network AMF to send downlink signaling to the base station also needs to be changed.

[0045] It can be anticipated that, on the one hand, as base stations move, the core network will need to perform frequent path switching procedures; on the other hand, when the number of UEs is large, each UE will need to perform a path switching procedure. Both of these factors will lead to frequent signaling interactions and increase network overhead.

[0046] This embodiment provides a method for determining the transmission network layer address of a base station operating in the aforementioned non-terrestrial network. Figure 4 is a flowchart of the method for determining the transmission network layer address of a base station according to an embodiment of this application. As shown in Figure 4, the process includes the following steps:

[0047] Step S202: Obtain the transmission network layer address associated with the target ground area;

[0048] Among them, the aforementioned base stations include, but are not limited to, base stations deployed on mobile platforms in the air, such as satellites or airships. Base stations deployed on satellites can be called spaceborne base stations.

[0049] A satellite is an artificial celestial body that orbits the Earth, typically used for communication, navigation, and weather forecasting. Satellites can be categorized into different types, such as geostationary satellites, geostationary satellites, and low-Earth orbit satellites, each with different orbits and functions. Satellites communicate with ground stations in a specific area of ​​the Earth via transmitters and receivers to transmit and receive information.

[0050] In an exemplary embodiment, the base station can obtain the transmission network layer address associated with each of the multiple ground areas, including the aforementioned target ground area.

[0051] Step S204: When the base station reaches the target ground area, the target transmission network layer address associated with the target ground area is determined as the transmission network layer address of the base station.

[0052] To address the shortcomings of highly dynamic non-terrestrial networks and considering the predictable operating trajectories of base stations, this application separates the Radio Network Layer (RNL) and Transport Network Layer (TNL) of the base station, associating the TNL address with the ground area. When any satellite serves a ground area (target ground area), the IP address associated with that target ground area is used as the base station's TNL address. When the core network UPF sends downlink data to terminals in the target ground area, a fixed base station TNL address can be used, eliminating the need for frequent path switching. Similarly, when the core network AMF sends downlink signaling to UEs in a ground area, a fixed base station TNL address can be used, significantly simplifying the signaling process and enhancing the robustness of the non-terrestrial network.

[0053] Since the operational trajectory and ground coverage area of ​​each satellite can be planned in advance through operation and maintenance, the transmission network layer address of the base station (which includes one or more addresses) is associated with the fixed ground area of ​​the satellite. When any satellite serves the ground area, the address associated with the ground area is used as the transmission network layer address of the base station (which includes one or more addresses).

[0054] In one exemplary embodiment, the height, operating trajectory, and beam coverage of each base station can be planned and operated. The ground area covered by the beam can be determined by at least one of the following: network identifier, ground physical area range.

[0055] Network identifiers include: tracking domain identifiers (list), mapped cell identifiers (list), wave position identifiers (list), etc.; the ground physical area range includes: the area determined by reference location and coverage radius, the area determined by latitude and longitude range, etc.

[0056] In one exemplary embodiment, considering the orbital altitude of the satellite base station, different IP addresses can be associated with the same ground area at different altitudes. This allows the same ground area to be associated with one or more transport network layer addresses, with different transport network layer addresses associated with different altitudes. For example, the transport network layer address associated with the same ground area at an altitude of one kilometer is different from the transport network layer address associated with an altitude of two kilometers. This achieves the effect of ensuring that the transport network layer addresses of the same ground area at different altitudes are not duplicated.

[0057] In one exemplary embodiment, a target ground area can be associated with one or more transport network layer addresses, and the addresses of different ground areas are not repeated, and the addresses associated with different altitudes of the same ground area are not repeated, thus generating a "region-address mapping table".

[0058] The base station obtains the target mapping table. When the base station reaches the target ground area, it looks up the "area-address mapping table" (also known as the target address mapping table) for that target ground area and uses the transport network layer address (one or more addresses) associated with that area. Specifically, it obtains the target altitude of the base station and determines the transport network layer address corresponding to the target altitude in the target mapping table as the target transport network layer address.

[0059] In an exemplary embodiment, the aforementioned “region-address mapping table” can be configured to the base station by a server (e.g., an OAM server); it can also be configured to the base station by the core network, for example, when the NG interface is established, the AMF sends it to the base station gNB.

[0060] In the above embodiments, the base station does not trigger a path switch procedure when the transmission network layer address is switched due to satellite movement; however, the base station triggers a path switch procedure when the handover is caused by the movement of the terminal UE. This achieves the technical effect of reducing the number of signaling interactions and lowering network overhead. Through the above steps, each ground area is associated with a transmission network layer address; when the base station moves to the target ground area, the target transmission network layer address associated with the target ground area is determined as the base station's transmission network layer address.

[0061] Because the transport network layer address used by the core network to send downlink data to the terminal via base stations is the transport network layer address associated with the terrestrial area, the transport network layer address used by the core network to send downlink data to the terminal remains static even if the base stations serving the terrestrial area change. This solves the problem of high network overhead caused by excessive signaling interaction in non-terrestrial networks in existing technologies, achieving the effect of reducing signaling interaction and lowering network overhead.

[0062] According to one embodiment of this application, a method for determining the transmission network layer address of a base station is provided, applied to a core network. Figure 5 is a flowchart of the method for determining the transmission network layer address of a base station according to an embodiment of this application. As shown in Figure 5, the process includes the following steps:

[0063] Step S302: Obtain the transmission network layer address associated with each of the multiple ground regions;

[0064] Step S304: When the ground area served by the base station or the altitude of the base station changes, the transmission network layer address of the base station is changed according to the transmission network layer address associated with each ground area. The transmission network layer address of the base station is determined according to the transmission network layer address associated with the ground area served by the base station.

[0065] In one exemplary embodiment, the core network obtains an "area-address mapping table" and, based on the base station ephemeris and satellite beam coverage, updates the transport network layer address of the base station it uses when the satellite moves to a new ground area.

[0066] The “area-address mapping table” can be configured for the core network via a server (e.g., an OAM server).

[0067] For example, when a base station moves from a first ground area to a second ground area, the base station's transmission network layer address is changed from a first transmission network layer address to a second transmission network layer address. The first transmission network layer address is associated with the first ground area, and the second transmission network layer address is associated with the second ground area. Different ground areas are associated with different transmission network layer addresses.

[0068] In the above embodiments, since the transmission network layer address used by the core network to send downlink data to the terminal through the satellite-based base station is a ground-area-bound address, the transmission network layer address used by the core network to send downlink data to the terminal through the satellite-based base station is static and does not need to be changed. This achieves the goal of reducing signaling overhead.

[0069] When a base station moves from a first altitude to a second altitude in the ground area it currently serves, the base station's transmission network layer address is changed from a third transmission network layer address to a fourth transmission network layer address. The third transmission network layer address is associated with the first altitude, and the fourth transmission network layer address is associated with the second altitude. Different altitudes are associated with different transmission network layer addresses.

[0070] In the above embodiments, since there may be high-orbit satellites and low-orbit satellites covering the same ground area (high-orbit satellites and low-orbit satellites operate at different altitudes), different transmission network layer addresses are bound to different altitudes of the same ground area, so as to achieve the purpose of using different transmission layer network addresses for satellites covering different altitudes of the same ground area.

[0071] When the base station moves from the third altitude of the third ground region to the fourth altitude of the fourth ground region, the base station's transmission network layer address is changed from the fifth transmission network layer address to the sixth transmission network layer address. The fifth transmission network layer address is associated with the third altitude of the third ground region, and the sixth transmission network layer address is associated with the fourth altitude of the fourth ground region.

[0072] By associating the base station transmission network layer address (one or more addresses) with the satellite's fixed ground area, the need to frequently trigger the path switch process to update the transmission network layer address when the core network sends downlink data due to base station movement can be avoided.

[0073] The present application is illustrated below through a specific embodiment:

[0074] The ground area can be configured to cover the size of all beams of a satellite base station.

[0075] Figure 6 below is a static network topology diagram. By planning the operation trajectory of each satellite base station and the corresponding ground area covered by the beam, the ground area is planned to be the size of the coverage area of ​​all beams of a satellite base station, as shown in regions A, B and C of Figure 6.

[0076] When the satellite base station is operating between trajectory points P1 and P2, the satellite beam always points to ground area A; when the satellite base station is operating between trajectory points P2 and P3, the satellite base station beam always points to ground area B; when the satellite base station is operating between trajectory points P3 and P4, the satellite base station beam always points to ground area C.

[0077] Different ground areas are planned to correspond to different transmission network layer IP addresses, as shown in Figure 6. The address corresponding to ground area A is IP_A, that is, the transmission network layer address of base station gNB1 at the current time is IP_A; the address corresponding to ground area B is IP_B, that is, the transmission network layer address of base station gNB2 at the current time is IP_B; the address corresponding to ground coverage area C is IP_C, that is, the transmission network layer address of base station gNB3 at the current time is IP_C.

[0078] In the network topology, the transport network layer address is a static IP address, and the "area-address mapping table" is recorded as {{area A, IP_A}, {area B, IP_B}, {area C, IP_C}}. This mapping table is configured to the base station and core network through OAM.

[0079] When each satellite moves to a new fixed ground coverage area, the base station queries the "area-address mapping table" and uses the IP address corresponding to that area. As shown in Figure 6, when gNB1 moves to coverage area B, it uses the transport network layer address IP_B; when gNB2 moves to coverage area C, it uses the transport network layer address IP_C.

[0080] The core network AMF determines the transmission network layer address of the base station it uses when the satellite moves to a new ground coverage area based on the "area-address mapping table", base station ephemeris table, and satellite beam coverage range.

[0081] Since the operational trajectory and beam coverage of each satellite base station can be planned in advance through operation and maintenance, this application introduces a static network topology structure, associating ground areas with IP addresses (one or more addresses). Different ground areas use different IP addresses. When any base station moves to a target ground area, it uses the IP address associated with that target ground area as the base station's transmission network layer address (one or more addresses). This application can greatly simplify the non-terrestrial network topology, eliminate the path switching process caused by base station movement, reduce signaling procedures, and enhance network robustness.

[0082] By statically associating fixed ground areas with transmission network layer addresses, the traditional highly dynamic satellite network topology can be designed as a static network topology. This eliminates the frequent path switching processes caused by base station movement, greatly simplifying the signaling process. Compared to existing technologies, this significantly simplifies the non-terrestrial network topology, thereby simplifying the path switching process.

[0083] In an exemplary embodiment, the entity performing the above steps may be a background processor or other devices with similar processing capabilities, or a machine that integrates at least an image acquisition device and a data processing device. The image acquisition device may include an image acquisition module such as a camera, and the data processing device may include a terminal such as a computer or a mobile phone, but is not limited thereto.

[0084] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of this application.

[0085] This embodiment also provides an apparatus for determining the transmission network layer address of a base station, applied to a base station. This apparatus is used to implement the above embodiments and preferred embodiments, and details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0086] Figure 7 is a structural block diagram of an apparatus for determining the transmission network layer address of a base station according to an embodiment of this application. As shown in Figure 7, the apparatus is applied to a base station, which is a mobile platform deployed in the air. It includes: a first acquisition module 72, configured to acquire the transmission network layer address associated with a target ground area; and a determination module 74, configured to determine the target transmission network layer address associated with the target ground area as the transmission network layer address of the base station when the base station moves to the target ground area.

[0087] In one exemplary embodiment, the above-described apparatus is further configured to obtain one or more transport network layer addresses associated with a target ground area, wherein different altitudes are associated with different transport network layer addresses.

[0088] In one exemplary embodiment, the above-described apparatus is further configured to obtain the target height of the base station; and determine the target transmission network layer address corresponding to the target height from one or more transmission network layer addresses associated with the target ground area.

[0089] In an exemplary embodiment, the above-described apparatus is further configured to obtain a target mapping table, wherein the target mapping table records one or more transmission network layer addresses associated with a target ground area; and determine the transmission network layer address in the target mapping table corresponding to the target height as the target transmission network layer address.

[0090] In one exemplary embodiment, the above-described apparatus is further configured to determine a ground area based on at least one of the following: network identifier, ground physical area range.

[0091] According to one embodiment of this application, an apparatus for determining the transmission network layer address of a base station is provided, applied to a core network. As shown in FIG8, the apparatus includes: a second acquisition module 82, configured to acquire the transmission network layer addresses associated with each ground area in a plurality of ground areas; and a modification module 84, configured to modify the transmission network layer address of the base station according to the transmission network layer addresses associated with each ground area when the ground area served by the base station or the altitude of the base station changes, wherein the transmission network layer address of the base station is determined based on the transmission network layer addresses associated with the ground areas served by the base station.

[0092] In an exemplary embodiment, the above-described apparatus is further configured to change the transmission network layer address of the base station from a first transmission network layer address to a second transmission network layer address when the base station moves from a first ground area to a second ground area, wherein the first transmission network layer address is associated with the first ground area, the second transmission network layer address is associated with the second ground area, and the transmission network layer addresses associated with different ground areas are different.

[0093] In an exemplary embodiment, the above-described apparatus is further configured to change the transmission network layer address of the base station from a third transmission network layer address to a fourth transmission network layer address when the base station moves from a first altitude to a second altitude in the ground area currently served, wherein the third transmission network layer address is associated with the first altitude and the fourth transmission network layer address is associated with the second altitude, and different altitudes are associated with different transmission network layer addresses.

[0094] In an exemplary embodiment, the above-described apparatus is further configured to change the transmission network layer address of the base station from a fifth transmission network layer address to a sixth transmission network layer address when the base station moves from a third altitude in a third ground region to a fourth altitude in a fourth ground region, wherein the fifth transmission network layer address is associated with the third altitude in the third ground region and the sixth transmission network layer address is associated with the fourth altitude in the fourth ground region.

[0095] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0096] Embodiments of this application also provide a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the method described in any of the preceding claims.

[0097] In one exemplary embodiment, the aforementioned computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard disk, magnetic disk, or optical disk.

[0098] Embodiments of this application also provide an electronic device including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0099] In one exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0100] Specific examples in this embodiment can be found in the examples described in the above embodiments and exemplary implementations, and will not be repeated here.

[0101] Embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the method steps of various embodiments of this application.

[0102] Obviously, those skilled in the art should understand that the modules or steps of this application described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those presented here, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, this application is not limited to any particular combination of hardware and software.

[0103] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A method for determining the transmission network layer address of a base station, applied to a base station deployed on an airborne mobile platform, comprising: Obtain the transport network layer address associated with the target ground area; When the base station operates in the target ground area, the target transmission network layer address associated with the target ground area is determined as the transmission network layer address of the base station.

2. The method of claim 1, wherein, Obtain the transport network layer address associated with the target ground area, including: Obtain one or more transport network layer addresses associated with the target ground area, wherein different altitudes are associated with different transport network layer addresses.

3. The method of claim 1 or 2, wherein, Determining the target transmission network layer address associated with the target ground area as the transmission network layer address of the base station includes: Obtain the target altitude of the base station; The target transmission network layer address corresponding to the target height is determined from one or more transmission network layer addresses associated with the target ground area.

4. The method of claim 3, wherein, Determining the target transmission network layer address corresponding to the target height from one or more transmission network layer addresses associated with the target ground area includes: Obtain a target mapping table, wherein the target mapping table records one or more transport network layer addresses associated with the target ground area; The transport network layer address corresponding to the target height in the target mapping table is determined as the target transport network layer address.

5. The method of claim 1, wherein, The method further includes: The target ground area is determined based on at least one of the following: network identifier, ground physical area range.

6. The method of claim 1, wherein, Obtain the transport network layer address associated with the target ground area, including: Obtain the transmission network layer address associated with each of the multiple ground regions, including the target ground region.

7. A method for changing the transmission network layer address of a base station, applied to a core network, comprising: Obtain the transmission network layer address associated with each of the multiple ground regions; When the ground area served by the base station or the altitude of the base station changes, the transmission network layer address of the base station is changed according to the transmission network layer address associated with each ground area, wherein the transmission network layer address of the base station is determined based on the transmission network layer address associated with the ground area served by the base station.

8. The method according to claim 7, wherein, When the ground area served by the base station changes, the transmission network layer address of the base station is changed according to the transmission network layer address associated with each of the ground areas, including: When the base station moves from the first ground area to the second ground area, the transmission network layer address of the base station is changed from the first transmission network layer address to the second transmission network layer address. The first transmission network layer address is associated with the first ground area, and the second transmission network layer address is associated with the second ground area. Different ground areas are associated with different transmission network layer addresses.

9. The method according to claim 7, wherein, When the altitude of the base station changes, the transmission network layer address of the base station is changed according to the transmission network layer address associated with each of the ground areas, including: When the base station moves from a first altitude to a second altitude in the ground area it is currently serving, the base station's transmission network layer address is changed from a third transmission network layer address to a fourth transmission network layer address. The third transmission network layer address is associated with the first altitude, and the fourth transmission network layer address is associated with the second altitude. Different altitudes are associated with different transmission network layer addresses.

10. An apparatus for determining the transmission network layer address of a base station, applied to a base station, the base station being deployed on an airborne mobile platform, comprising: The first acquisition module is configured to acquire the transmission network layer address associated with the target ground area; The determination module is configured to determine the target transmission network layer address associated with the target ground area as the transmission network layer address of the base station when the base station operates in the target ground area.

11. An apparatus for changing the transmission network layer address of a base station, applied in a core network, comprising: The second acquisition module is configured to acquire the transmission network layer address associated with each of the multiple ground areas; The modification module is configured to change the transmission network layer address of the base station according to the transmission network layer address associated with each of the ground areas when the ground area served by the base station or the altitude of the base station changes. The transmission network layer address of the base station is determined based on the transmission network layer address associated with the ground area served by the base station.

12. A computer-readable storage medium, wherein, The computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6, or implements the steps of the method according to any one of claims 7 to 9.

13. An electronic device comprising a memory and a processor, wherein, The memory stores a computer program, and the processor is configured to run the computer program to perform the method according to any one of claims 1 to 6, or to perform the method according to any one of claims 7 to 9.

14. A computer program product comprising a computer program, wherein, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6, or implements the method according to any one of claims 7 to 9.

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