Neighbor cell switching method and device, electronic equipment and storage medium

Abstract

The invention discloses a neighbor cell switching method and device, electronic equipment and a storage medium, and the method can receive first information sent by a first network through first equipment, and determine second information according to the first information and feature information of cells in a second network. Wherein the first information is determined based on beam information of satellites in the first network. And the second information is sent to the first network, so that the first network performs neighbor cell measurement information configuration according to the second information. Through application of the technical scheme of the invention, the first network and the second network can be accurately associated, the beam change can be dynamically adapted, accurate and efficient interaction of neighbor cell information can be ensured, the accuracy and timeliness of neighbor cell switching can be improved, and the continuity and stability of connection in network cooperation can be further ensured.

Description

Technical Field

[0001] This application relates to the field of wireless communication, and in particular to a neighbor cell handover method, apparatus, and electronic device storage medium. Background Technology

[0002] For satellite-terrestrial integrated networking, the non-terrestrial network (NTN) is centered on satellite beam coverage, achieving communication coverage over a wide geographical area through satellite signal beams; the terrestrial network (TN) is based on terrestrial cells, relying on ground facilities such as base stations to provide refined communication services in local areas. The two work together to build a seamless communication network covering the entire region.

[0003] For non-terrestrial networks, satellite beam operation modes include Earth-fixed mode and Earth-moving mode. In Earth-fixed mode, the satellite beam maintains a fixed coverage area for a period of time, with the beam direction continuously adjusting as the satellite moves. In Earth-moving mode, the satellite beam direction remains fixed, but it slides across the ground as the satellite moves.

[0004] However, because the coverage area of ​​the satellite beam changes constantly in the flat scan mode, the neighboring cell relationship between the satellite and the ground is always in a dynamic state. This dynamism makes it difficult to establish a stable mapping of satellite-ground neighboring cell relationships with the beam position as the smallest unit, and neighboring cell information needs to be updated frequently, which increases the complexity of network topology management. Summary of the Invention

[0005] In view of this, this application provides a neighbor cell handover method, apparatus, electronic device, and storage medium to solve the problem of high complexity in network topology management in converged networking.

[0006] In a first aspect, this application provides a neighbor cell handover method, applied to a first device, the method comprising:

[0007] Receive the first message sent by the first network;

[0008] The first information is the beam information of the first satellite in the first network; the second information is determined based on the first information and the feature information of the network cell; the network cell is a cell covered by the second network.

[0009] Send the second message.

[0010] In the above method, the first device receives beam information from the first network, combines it with cell characteristics of the second network to determine and send second information, thus establishing a bridge for satellite-ground network collaboration. Using the beam as a processing unit, the second information accurately associates the two networks, adapts to dynamic beam changes, ensures accurate neighbor cell information, provides a reliable basis for user equipment handover between the two networks, and improves handover accuracy and timeliness.

[0011] In some embodiments of this application, the first network is a non-terrestrial network and the second network is a terrestrial network; the first information includes at least one of beam direction angle and phased array antenna weights.

[0012] In the above method, the first network is clearly defined as NTN and the second network as TN, and the first information is limited to include specific parameters such as beam direction angle, which provides a reliable data foundation for subsequent accurate calculation of beam coverage and matching of ground cells, and enhances the pertinence of satellite-ground network coordination.

[0013] In some embodiments of this application, determining the second information based on the first information and the feature information of the network cell includes: querying ephemeris information that is associated with the first information; determining the beam coverage information of the first beam based on the ephemeris information; the first beam being the beam corresponding to the beam information; and determining the second information according to the beam coverage information and the network cell.

[0014] In the above method, beam coverage is determined by querying ephemeris information and combining it with the first information, and then the second information is determined by matching network cells. This fully utilizes the satellite dynamics reflected by the ephemeris to make the beam coverage information more accurate, and enables the second information to provide a dynamic adaptation decision basis for neighbor cell handover, thereby improving the reliability of coordination.

[0015] In some embodiments of this application, according to the above method, determining the beam coverage information of the first beam based on the ephemeris information includes: calculating the projection area of ​​the first beam onto the ground based on the ephemeris information; and determining the beam coverage information based on the projection area.

[0016] In the above method, the coverage information is determined by calculating the ground projection area of ​​the beam through ephemeris, and the beam pointing is transformed into a concrete geographical area, providing a precise geographical reference for the spatial matching of beam coverage and ground cells, and ensuring the accuracy of neighbor cell selection.

[0017] In some embodiments of this application, determining the second information based on the first information and the feature information of the network cell includes: determining neighboring cells based on the beam coverage information; the neighboring cells are network cells that have an adjacent relationship with the ground area covered by the first beam, and the adjacent relationship includes at least one of intersecting and overlapping relationships; recording the feature information of the neighboring cells to generate a neighboring cell set; and generating the second information based on the neighboring cell set.

[0018] In the above method, neighboring cells are selected and second information is generated based on the intersection and overlap relationship between the beam and the ground cell. This second information covers both real-time and future coverage areas, so that it contains both current and future neighboring cell information, providing accurate targets for handover measurement and avoiding handover failure.

[0019] In some embodiments of this application, sending the second information includes: sending the second information to the first network in a single transmission; the second information includes at least one of the base station location information and cell coverage information of the second network.

[0020] In the above method, sending a second piece of information in a single transmission reduces the number of signaling interactions between the satellite and ground, thus lowering network overhead. Simultaneously, the decision-making process for neighbor cell configuration is delegated to the first network, allowing it to flexibly handle the situation based on its own state, thereby improving the real-time performance of beam-level measurement configuration while ensuring information integrity.

[0021] In some embodiments of this application, sending the second information includes: sending the second information to the first network at a first time point; the first time point is determined based on a second time point at which the beam and the network cell generate an adjacency relationship, and the second information includes the neighbor cell mapping relationship between the beam and the network cell.

[0022] In the above method, the second information containing the mapping relationship is issued at the first time point determined based on the neighbor cell effective time, ensuring that the first network accurately obtains information before the neighbor cell relationship takes effect.

[0023] In some embodiments of this application, before sending the second information to the first network at the first time point, the method further includes: determining the neighbor cell mapping relationship between the beam and the neighbor cell based on the first information; the neighbor cell is a network cell that has an adjacent relationship with the beam, and the adjacent relationship includes at least one of intersecting and overlapping relationships; and updating the second information based on the neighbor cell mapping relationship.

[0024] In the above method, the neighbor cell mapping relationship is determined and updated before the information is sent, so that the second information can dynamically adapt to changes in the relationship between the beam and the neighbor cells, avoiding matching deviations caused by static information. Combined with time-point sending, it ensures that the information obtained by the first network is real-time, accurate and in advance, reducing the processing burden and improving the dynamic adaptation capability of handover.

[0025] In some embodiments of this application, before sending the second information to the first network at the first time point, the method further includes: calculating a second time point at which the beam and the network cell become adjacent based on the first information; determining the first time point according to the second time point and a preset time period; the preset time period is determined based on the transmission delay.

[0026] In the above method, the second time point is calculated and the first time point is set in combination with the transmission delay. This ensures accurate timing of neighbor cell activation while reserving a buffer to avoid information delivery delays. This allows the first network to configure neighbor cell information in advance, reducing handover lag caused by latency.

[0027] In some embodiments of this application, the method further includes: acquiring, storing, and managing third information; the third information includes first service area information, second service area information, and the association relationship between the first network and the second network; the first service area information includes ephemeris information, first cell information, and wavelet position information of the first network; the second service area information includes base station identifier, base station location information, and second cell information of the second network.

[0028] In the above method, by acquiring third information covering the satellite-to-ground service area and related relationships, comprehensive data support is provided for the first device, ensuring that the basic information of the satellite-to-ground network can be fully utilized when calculating neighboring cells, thereby improving the comprehensiveness and accuracy of determining neighboring cell relationships.

[0029] Secondly, this application also provides a neighbor cell handover method, applied to a first network, the method comprising:

[0030] The first information is sent to the first device based on the beam information of the first satellite;

[0031] The system receives second information sent by the first device based on the first information; the second information is determined based on the first information and the characteristic information of the network cell, wherein the network cell is a cell covered by the second network.

[0032] In the above method, the first network actively sends beam information and receives the second information returned by the first device, realizing a closed loop of information interaction with the ground network. By obtaining accurate neighbor cell association information, the first network can configure handover measurements in a targeted manner, adapt to its own beam dynamic characteristics, and improve the collaborative efficiency and reliability of cross-network handover.

[0033] In some embodiments of this application, after receiving the second information sent by the first device according to the first information, the method further includes: sending a radio resource control reconfiguration message to the second device using the beam pointing of the first beam as an identifier; the first beam is the beam corresponding to the beam information; wherein, the radio resource control reconfiguration message includes at least one of the following: measurement gap period, measurement gap length, offset, and synchronization signal block measurement timing configuration parameters; the radio resource control reconfiguration message is used to trigger the second device to perform a handover measurement from the first network to the second network.

[0034] In the above method, the first network sends a reconfiguration message containing measurement parameters with the beam direction as the identifier, which enables precise measurement triggering of devices under a specific beam. This can guide the third device to perform handover measurements efficiently, ensure accurate and timely measurements, reduce handover delays and failure risks, and guarantee communication continuity.

[0035] In some embodiments of this application, the method further includes: during the satellite orbital period, sending first information to a first device based on the beam information of the first satellite; the first information includes at least one of beam direction angle and phased array antenna weights.

[0036] In the above method, the satellite transmits first information, including the beam direction angle, during its orbital period. Because the beam pointing is stable, frequent transmission is unnecessary. This ensures effective and stable information transmission while reducing signaling overhead, providing a stable reference for the first device to accurately determine neighboring ground cells, and improving satellite-ground coordination efficiency and handover reliability.

[0037] Thirdly, this application also provides a neighbor cell handover device, comprising:

[0038] The receiving module is configured to receive first information sent by the first network; the first information is the beam information of the first satellite in the first network.

[0039] The calculation module is configured to determine second information based on the first information and the feature information of the network cell; the network cell is a cell covered by the second network.

[0040] The sending module is configured to send the second information.

[0041] Fourthly, this application also provides a neighbor cell handover device, comprising:

[0042] The transmitting module is configured to transmit first information to the first device based on the beam information of the first satellite;

[0043] The receiving module is configured to receive second information sent by the first device based on the first information; the second information is determined based on the first information and the feature information of the network cell, wherein the network cell is a cell covered by a second network.

[0044] Fifthly, this application provides an electronic device, comprising:

[0045] At least one processor; and

[0046] A memory communicatively connected to the at least one processor; wherein,

[0047] The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method described in the first aspect embodiment.

[0048] In a sixth aspect, this application provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause the computer to perform the method described in the first aspect embodiment.

[0049] In a seventh aspect, this application provides a computer program product, including a computer program that, when executed by a processor, implements the method described in the first aspect embodiment described above.

[0050] As can be seen from the above technical solutions, the neighbor cell handover method, apparatus, and electronic device storage medium disclosed in this application allow the method to receive first information sent by a first network through a first device, and determine second information based on the first information and the characteristic information of cells in a second network. The first information is determined based on the beam information of satellites in the first network. The second information is then sent to the first network so that the first network can configure neighbor cell measurement information based on the second information. By applying the technical solutions of this application, the first and second networks can be accurately linked, beam changes can be dynamically adapted, and accurate and efficient interaction of neighbor cell information can be ensured. This improves the accuracy and timeliness of neighbor cell handover, thereby guaranteeing the continuity and stability of connections in network collaboration.

[0051] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0052] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0053] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 A schematic diagram of the satellite-ground collaborative networking network architecture provided in an embodiment of this application is shown;

[0055] Figure 2 A flowchart illustrating a neighbor cell handover method provided in an embodiment of this application is shown;

[0056] Figure 3 A flowchart illustrating another neighbor cell handover method provided in an embodiment of this application is shown;

[0057] Figure 4 This illustration shows a schematic diagram of a satellite moving leading edge beam provided in an embodiment of this application;

[0058] Figure 5 This illustration shows another satellite moving leading-edge beam provided in an embodiment of this application;

[0059] Figure 6 This illustration shows a schematic diagram of sending a radio resource control reconfiguration message according to an embodiment of this application;

[0060] Figure 7 This paper shows a schematic diagram of the structure of a neighbor cell handover device provided in an embodiment of this application;

[0061] Figure 8 This paper shows a schematic diagram of another neighbor cell handover device provided in an embodiment of this application;

[0062] Figure 9 A schematic block diagram of an example electronic device provided in an embodiment of this application is shown. Detailed Implementation

[0063] The embodiments of this application will now be described in more detail with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0064] Wireless communication networks can include terrestrial cellular networks and satellite networks. Terrestrial cellular networks mainly cover hotspot areas such as urban areas, while satellite networks cover remote areas with relatively few users outside of urban areas, thereby reducing the construction and maintenance costs of deploying terrestrial base stations.

[0065] Because the coverage areas of satellite networks and terrestrial networks differ significantly, there are many small terrestrial cells in the satellite-terrestrial overlap area. For example, a single satellite can contain hundreds of wavelengths, and the coverage area of ​​a single beam within a wavelength can reach hundreds to thousands of square kilometers. Therefore, the coverage area of ​​a single satellite network is tens of thousands to hundreds of thousands of square kilometers; while the coverage area of ​​a terrestrial network is only a few square kilometers, far smaller than that of a satellite network.

[0066] like Figure 1 As shown, in cases where there are many terrestrial cells in the satellite-terrestrial overlap area, in some embodiments, a satellite-terrestrial cooperation gateway is set up between the satellite network and the terrestrial network to manage the mapping relationship between the terrestrial network coverage area and the satellite network coverage area. The satellite-terrestrial cooperation gateway is also configured with a computing module, which can be configured with computing and decision-making functions. Terrestrial cellular base stations can report their information to the satellite-terrestrial cooperation gateway through the TN's edge OAM (Operations Administration and Maintenance).

[0067] In some embodiments, non-terrestrial networks (NTNs), such as satellite networks, have two beam patterns: Earth-fixed mode and Earth-moving mode. In Earth-fixed mode, the satellite beam consistently covers the same geographical area for a period of time, with the beam direction continuously adjusting as the satellite moves. In Earth-moving mode, the satellite beam direction remains fixed, but it slides across the ground as the satellite moves.

[0068] Because the beam pointing in staring mode continuously adjusts with satellite movement to maintain a constant coverage area, frequent cell switching is unnecessary. Establishing neighbor cell mapping based on pre-set ground positions is relatively easy in staring mode. Furthermore, in staring mode, satellites can be combined with hopping beams, and the Synchronization Signal and PBCH Block Index (SSB index) can be used as position identifiers for differentiated and refined configuration of position-level broadcast messages and connected-state signaling. This allows users to manage connected and idle neighbor cells and mobility at the position level.

[0069] However, due to the constantly changing relationships between satellite neighboring cells in beam scanning mode, it is difficult to map neighboring cell relationships between satellite and ground with wave position as the smallest unit, which leads to difficulties in core functions such as mobility management and resource scheduling in satellite-ground cooperative network scenarios.

[0070] Therefore, to solve the aforementioned technical problems, this application discloses a neighbor cell handover method for the flat scan mode, which can be applied to a first device, such as a satellite-ground coordination gateway. The method includes receiving first information sent by a first network and determining second information based on the first information and the characteristic information of cells in a second network. The first information is determined based on the beam information of satellites in the first network. The second information is then sent back to the first network so that the first network can configure neighbor cell measurement information based on the second information, ensuring the accuracy of connection handover during network coordination.

[0071] The technical solution disclosed in this application can accurately associate the first network and the second network through the first information and the second information, dynamically adapt to beam changes, ensure accurate and efficient interaction of neighboring cell information, improve the accuracy and timeliness of neighboring cell handover, and thus ensure the continuity and stability of the connection in network collaboration.

[0072] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0073] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0074] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0075] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0076] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0077] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0078] The prefixes such as "first" and "second" in the embodiments of this disclosure are only for distinguishing different descriptive objects and do not constitute restrictions on the position, order, priority, number or content of the descriptive objects. For the description of the descriptive objects, please refer to the description in the claims or the context of the embodiments. The use of prefixes should not constitute unnecessary restrictions.

[0079] In the embodiments disclosed herein, "multiple" refers to two or more.

[0080] In the embodiments disclosed herein, terms such as “import”, “input”, and “read in” can be used interchangeably.

[0081] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0082] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0083] Figure 2 This is a flowchart illustrating a neighbor cell handover method provided in an embodiment of this disclosure. The method can be applied to a first device, which can be a gateway, such as a satellite-to-ground cooperative gateway or other network device. Figure 2 As shown, the neighbor cell handover method includes S101-S103.

[0084] S101, Receive the first information sent by the first network.

[0085] In this embodiment of the disclosure, first information transmitted by a first network side is received. The first network can be an NTN, i.e., a non-terrestrial network; the first information is the beam information of a first satellite in the first network. That is, the first information is the information corresponding to the beam transmitted by the satellite in the first network.

[0086] In one implementation, the beam information can be the beam pointing information of the satellite's moving leading edge in the NTN network.

[0087] In one implementation, the first device can act as a collaborative hub between the first and second networks, responsible for handling cross-network neighbor cell information exchange and decision-making.

[0088] In one implementation, the first information is also associated with the ephemeris information of the first satellite, such as the satellite orbital parameters and current position of the first satellite.

[0089] S102. Determine the second information based on the first information and the characteristic information of the network cell.

[0090] After receiving the first information sent by the first network, the second information can be determined based on the first information and the cells covered by the second network.

[0091] For ease of explanation and distinction, in this application embodiment, the cell covered by the second network is referred to as a network cell, that is, a network cell is a cell covered by the second network. The second network can be a TN, i.e., a terrestrial network. This disclosure embodiment determines the second information through the first information and the characteristic information of each network cell in the second network.

[0092] In some implementations, the characteristic information of a network cell may include, but is not limited to, cell information, base station identifier, and base station location information.

[0093] Since the second information is determined by the beam information of the first network and the characteristic information of the network cells in the second network, it can characterize the cooperative relationship between the first network and the second network.

[0094] S103, Send the second message.

[0095] Once the second information is determined, it can be sent out to synchronize the collaborative relationship between the first and second networks.

[0096] Based on the above embodiments, the neighbor cell handover method provided in this application uses beams rather than beam positions or beam position groups as the smallest processing unit, which can more accurately match the dynamic coverage characteristics of satellite beams and reduce the transmission and processing of redundant neighbor cell information. By reporting first information including beam information on the first network, second information related to network cells in the second network is determined, so that the second information can accurately associate the first network and the second network, and obtain the cooperative relationship between the first network and the second network, which can adapt to beam changes. Through the cooperative relationship between the first network and the second network, the accuracy of neighbor cell information can be ensured, thereby ensuring the accuracy and timeliness of neighbor cell handover between the first network and the second network for user equipment.

[0097] It should be noted that, for ease of distinction, some of the following embodiments are described using NTN as the first network and TN as the second network, but this is not intended to limit the scope of the embodiments.

[0098] For example, the system receives the beam information (i.e., the first information) of the satellite transmitted by the NTN. Using the beam information as the smallest processing unit, the system determines the second information used to characterize the neighboring cell information based on this processing unit and the characteristic information of each network cell in the TN network.

[0099] Figure 3 This is a flowchart illustrating a neighbor cell handover method provided in an embodiment of this disclosure. The method can be applied to a first network. The first network can be a non-terrestrial network, i.e., an NTN; an NTN can include various network devices, such as NTN base stations, satellites, etc. Figure 3 As shown, the neighbor cell handover method includes S201-S202.

[0100] S201. Send the first information to the first device based on the beam information of the first satellite.

[0101] In this embodiment of the disclosure, first information is sent to the first device based on the beam information of the first satellite, that is, the first information is the beam information of the first satellite in the first network.

[0102] In one implementation, the beam information can be the beam pointing information of the satellite's moving leading edge in the NTN network.

[0103] In one implementation, the first information is also associated with the ephemeris information of the first satellite, such as the satellite orbital parameters and current position of the first satellite.

[0104] In one implementation, the first device is a gateway used to coordinate the first network and the second network. For example, the first device can be a satellite-ground cooperation gateway.

[0105] S202, Receive the second information sent by the first device based on the first information.

[0106] After sending the first information to the first device, the device can receive the second information determined by the first device based on the first information. That is, it can receive the second information sent by the first device based on the first information. The second information is determined based on the first information and the characteristic information of the network cell, where the network cell is a cell covered by the second network.

[0107] Based on the above embodiments, the neighbor cell handover method provided in this application sends first information to a first device based on satellite beam information and receives feedback second information, enabling precise coordination between the first and second networks. By actively reporting the beam information of the satellite's moving front, a real-time dynamic coverage benchmark can be provided to the first device, ensuring that the first device can accurately match neighbor cells by combining the characteristic information of each cell in the second network. The received second information may include neighbor cell information adapted to beam coverage, enabling the first network to specifically configure terminal measurement parameters to adapt to dynamic changes in beam scanning mode, reduce invalid information interaction, and improve the timeliness and accuracy of neighbor cell handover.

[0108] In some embodiments, the first information may include at least one of the beam direction angle of the first beam and the phased array antenna weights. That is, the first information is the beam pointing information of the satellite's moving leading edge, and the beam pointing information may include at least one of the beam direction angle and the phased array antenna weights.

[0109] For example, such as Figures 4-5 As shown, the satellite beam pointing direction is fixed, and the coverage area of ​​the satellite's moving leading edge beam changes as the satellite moves, and the corresponding satellite beam position also changes accordingly. In the embodiments disclosed in this application, the first network can report first information based on the changes in the satellite's moving leading edge beam.

[0110] In some embodiments, the first network may report first information to the first device through its base station. For example, the NTN base station (i.e., the first network) reports the beam pointing information (i.e., the first information) of the satellite's moving front to the gateway (i.e., the first device).

[0111] In some embodiments, the first device also acquires, stores, and manages third information, that is, the first device also maintains third information. The third information includes first service area information, second service area information, and the association between the first network and the second network; the first service area information corresponds to the first network, and the second service area information corresponds to the second network.

[0112] In some embodiments, the first service area information may include ephemeris information, first cell information, and wave position information of the first network; the second service area information may include base station identifier, base station location information, and second cell information of the second network.

[0113] In other words, for NTN networks, the information that the first device can maintain (first service area information) includes, but is not limited to, satellite ephemeris information, cell information of the NTN network service area (first cell information), i.e., NTN Physical Cell Identity (PCI), and cell position information, etc.; for TN networks, the information that can be maintained (second service area information) includes, but is not limited to, base station ID, base station location information, and cell information corresponding to the base station (second cell information), i.e., TN Physical Cell Identity (PCI), etc. That is, among the information maintained by the first device, the NTN position information and the cell information of the base station can be corresponding cell (PCI) information and coverage information, such as coverage radius, etc.

[0114] In one implementation, the second cell information may include the cell radius covered by the network cells in the second network.

[0115] Based on the above embodiments, taking the first device as a satellite-ground cooperation gateway, the first network as an NTN network, and the second network as a TN network as an example, the satellite-ground cooperation gateway maintains the service area information (first service area information and second service area information) and mapping relationship between the NTN network and the TN network. For the NTN network, the maintainable information includes, but is not limited to, satellite ephemeris information, cell information within the NTN network service area, and radii information within the cell. For the TN network, the maintainable information includes, but is not limited to, base station ID, base station location information, and cell information corresponding to the base station (such as cell radius).

[0116] In some embodiments, for step S201, when the first network sends the first message, it sends the first information to the first device based on the beam information of the first satellite within the satellite orbit cycle. That is, at any time within this satellite orbit cycle, the beam pointing information of the satellite's moving leading edge is reported to the first device. Since the satellite's beam pointing does not change with satellite movement in fixed flat scan mode, the NTN base station (first network) can report the beam pointing information of the satellite's moving leading edge (i.e., the first information) at any time within this satellite orbit cycle.

[0117] In this embodiment of the present disclosure, the first network reports the beam pointing information (i.e., the first information) of the satellite's moving front edge to the first device at any time during the satellite's orbital period. Since the beam pointing does not change with the satellite's movement, it can ensure the validity and stability of the information, and does not require frequent reporting, thus reducing signaling interaction overhead.

[0118] Accordingly, the first device can only receive the first information after the first network sends the first information. That is, the timing of the first device receiving the first information is determined by the timing of the first network reporting the first information.

[0119] Based on the above embodiments, taking the first device as a satellite-to-ground cooperation gateway and the first network as an NTN network as an example, the NTN base station reports the beam pointing information of the satellite's moving front (i.e., the first information) to the satellite-to-ground cooperation gateway. The satellite's moving front beam pointing information is associated with the ephemeris information. In the satellite fixed beam mode, the satellite beam pointing does not change with satellite movement. Therefore, the NTN base station can report the satellite's moving front beam pointing information at any time within this satellite orbital period.

[0120] For step S202, in some embodiments, when determining the second information based on the first information, ephemeris information associated with the first information is queried. The ephemeris information includes, but is not limited to, the satellite orbital parameters, current position, time parameters, velocity information, and attitude parameters of the first satellite. Then, based on the ephemeris information, the beam coverage information of the first beam is determined. The first beam is the beam corresponding to the beam information.

[0121] In other words, by using the first information from the first satellite and the ephemeris information associated with the first information, the beam coverage information corresponding to the first beam can be determined, such as the real-time and future coverage area of ​​the beam projected on the ground, thus obtaining the beam coverage information.

[0122] After determining the beam coverage information, the second information is determined based on the beam coverage information and the network cell.

[0123] The first device can compare the coverage area of ​​each network cell (TN cell) in the second network with the real-time coverage area and future coverage area of ​​the beam to determine the TN cells that overlap, intersect, or are about to overlap or intersect with the beam, and then determine the second information based on the determined set of TN cells.

[0124] In this embodiment of the disclosure, the first device can determine beam coverage information by combining the first information and the associated ephemeris information. By comparing the real-time coverage area of ​​the beam with the future coverage area and the coverage area of ​​the TN cell, it can accurately filter out overlapping, intersecting or soon-to-be-associated TN cells to form the second information. This not only uses ephemeris to ensure the accuracy of beam coverage prediction, but also ensures the accuracy of neighbor cell matching through spatial association, providing a reliable ground neighbor cell basis for NTN.

[0125] In some embodiments, when determining the beam coverage information of the first beam, the projection area of ​​the first beam onto the ground can be calculated based on ephemeris information, and then the beam coverage information can be determined based on the projection area.

[0126] In other words, beam coverage information is determined by using ephemeris information associated with the first information. The ephemeris information provides the real-time position, orbital parameters, and motion status of the first satellite, forming a spatial reference for beam pointing. The first information, such as the beam azimuth and coverage area, is dynamically generated based on the satellite's position and attitude. By combining the ephemeris information with the first information, the current real-time and future coverage areas of the first beam on the ground can be determined, resulting in the aforementioned projection area. From this projection area, the beam coverage information corresponding to the first beam can be derived.

[0127] In this embodiment, the ground projection area is calculated by combining the satellite spatial reference provided by ephemeris information with beam pointing information, so as to accurately determine the real-time and future coverage range of the beam, making the beam coverage information both accurate and predictable.

[0128] In some embodiments, the process of determining the second information can be implemented by identifying neighboring cells based on beam coverage information. Neighboring cells are network cells (i.e., TN cells) that are adjacent to the ground area covered by the first beam. Adjacency relationships include at least one of intersecting or overlapping relationships. Specifically, neighboring cells are determined within TN cells based on the real-time and future coverage areas of the beam. The characteristic information of these neighboring cells is then recorded to generate a neighboring cell set. Finally, the second information is generated based on this neighboring cell set.

[0129] In other words, when determining the second information, the core is to screen neighboring cells based on the spatial association between beam coverage information and TN cells. For example, cells that intersect or overlap with the beam coverage area can be identified from the TN network first. These cells have the basic conditions to become UE handover targets due to their geographical proximity. Then, the feature information of these neighboring cells is collected to form a neighboring cell set, and the neighboring cell set is integrated into the second information, which is synchronized to the NTN as a potential TN neighboring cell set.

[0130] In this embodiment, neighboring cells are determined by the intersection and overlap relationship between the beam coverage area and the TN cell, ensuring that the selected neighboring cells are geographically feasible for handover and avoiding the inclusion of invalid neighboring cells; at the same time, by combining real-time and future coverage areas, TN cells that will be associated with the next cell are identified in advance, so that the second information can characterize the set of potential TN neighboring cells based on beam changes.

[0131] Based on the above embodiments, taking the first device as a satellite-ground cooperation gateway, the first network as an NTN network, and the second network as a TN network as an example, after receiving the satellite moving front beam pointing information reported by the NTN base station, the satellite-ground cooperation gateway can calculate the beam coverage information projected to the ground by each beam of the satellite moving front based on the satellite ephemeris information. Then, based on the TN cell coverage information it maintains, it calculates the set of TN cells that will become the coverage area of ​​the satellite moving front beam during the current satellite orbiting process. These TN cells are also the potential set of TN neighboring cells during the entire satellite's movement in the flat scan mode.

[0132] For step S103, in some embodiments, the second information can be sent to the first network in a single instance; or, the second information can be sent to the first network according to a first time point. The first time point is determined based on the second time point at which the beam and network cells establish an adjacency relationship. The second information sent in a single instance can be generated from the aforementioned neighbor cell set, while the second information sent according to the first time point can be the neighbor cell mapping relationship derived by the first device from the neighbor cell set.

[0133] In other words, there are two ways to send the second information to the first network (NTN): one is to send it once, that is, to send the set of all candidate TN neighbor cells (neighbor cell set) to the NTN at one time; the other is to send it according to a time point, that is, to set the time of sending (first time point) according to the specific time when the beam forms an adjacency relationship with the TN cell (second time point). At this time, what is sent is the dynamically updated neighbor cell mapping relationship (such as the association rule of a certain TN cell becoming a valid neighbor cell at a specific time).

[0134] In this embodiment, two delivery methods are flexibly adapted to different scenarios. Single delivery reduces the number of signaling interactions and lowers network overhead; time-based delivery accurately pushes information based on the effective time of neighbor cell relationships, ensuring that the neighbor cell information obtained by the NTN is both complete and timely.

[0135] In some embodiments, for a single-transmission method, the first device transmits the second information to the first network in a single transmission. The second information includes at least one of the base station location information and cell coverage information of the second network.

[0136] In other words, the first device sends the set of neighboring cells (i.e., the second information) obtained by matching the beam coverage information with the TN cell to the first network, such as the NTN base station, all at once. The second information may include characteristic information such as the base station location information and cell coverage range of the TN cell.

[0137] In some embodiments, for the method of sending the second information in a single instance, the first network calculates the time when each network cell becomes an effective neighbor cell and its corresponding beam association based on the second information. Then, based on the aforementioned information, it decides on a third time point for sending a radio resource control reconfiguration message to the second device. The radio resource control reconfiguration message is identified by the beam direction of the first beam, and the second device is a user equipment, such as a mobile terminal.

[0138] In other words, the first device sends the set of neighboring cells (i.e., the second information) obtained by matching beam coverage information with TN cells to the first network, such as the NTN base station, all at once. After receiving the information, the NTN base station needs to autonomously calculate the time when each TN cell becomes an effective neighboring cell and the corresponding beam association relationship based on satellite ephemeris information, and decide when to send beam-level radio resource control (RRC) reconfiguration information to the UE. That is, the specific execution of neighboring cell measurement and configuration is led by the NTN base station.

[0139] In this embodiment of the disclosure, the single-pass method can reduce the frequency of signaling interaction between the first device and the first network, thereby reducing network overhead. At the same time, the calculation of neighbor cell effective time and the decision-making of configuration pass-off timing are delegated to the first network, which can flexibly adapt to its own beam status and UE distribution, avoiding the delay that may be caused by centralized decision-making by the gateway, and improving the accuracy and real-time performance of beam-level measurement configuration.

[0140] Based on the above embodiments, taking the first device as a satellite-ground cooperation gateway, the first network as an NTN network, and the second network as a TN network as an example, the satellite-ground cooperation gateway sends the complete set of TN neighbor cell information to the NTN base station at once, including the base station location information and cell coverage information of all TN neighbor cells. After receiving the complete set of TN neighbor cell information, the NTN base station calculates the time when each received TN cell becomes its TN neighbor cell based on satellite ephemeris information, as well as the beam information that establishes the neighbor cell relationship with it, and determines the appropriate time to send beam-level RRC Reconfiguration information before sending it. In this way, the satellite-ground cooperation gateway only performs TN neighbor cell calculation based on the neighbor cell relationship mapping without making decisions, and the form and timing of sending neighbor cell measurement configuration information are dominated by the NTN base station.

[0141] In some embodiments, the second information is sent to the first network at a first time point, where the second time point is determined based on the second time point at which the beam and network cells establish an adjacency relationship. The second information includes the neighbor cell mapping relationship between the beam and the network cells.

[0142] In other words, the first device first calculates the specific time when the beam forms an adjacency relationship with the TN cell (i.e., the second time point), then sets the transmission timing accordingly (i.e., the first time point, which needs to reserve space for satellite-to-ground transmission and delay buffers), and sends the neighbor cell mapping relationship, which includes the dynamic association rules between the beam and the TN cell, as the second information to the NTN base station. This mapping relationship can characterize at which time points a specific beam forms a neighbor cell with the TN cell. After receiving it, the NTN base station can directly configure beam-level RRC reconfiguration information based on this.

[0143] In this embodiment, the time-based delivery ensures that the NTN base station accurately obtains the required information before the neighbor cell relationship takes effect. At the same time, the targeted push of the neighbor cell mapping relationship reduces the computational burden on the NTN base station, so that it does not need to deduce the timing of the neighbor cell taking effect on its own, but only needs to perform configuration delivery. In the scenario of rapid beam movement, it can significantly improve the efficiency of satellite-ground coordination and ensure the timeliness and reliability of handover.

[0144] In some embodiments, before sending the second information to the first network at a first time point, the neighbor cell mapping relationship between the beam and neighboring cells is determined based on the first information. The second information is then updated based on the neighbor cell mapping relationship.

[0145] In other words, before sending the second information at specific times, the first device first constructs dynamic association rules (i.e., neighbor cell mapping relationships) between the beam and neighbor cells based on the first information, combined with ephemeris and TN cell characteristic information, to determine which TN cells the beam will form neighbor cells with at different times. This mapping relationship is then integrated and updated into the second information, and sent to the first network (NTN base station) at a preset first time point (determined based on the second time point when the neighbor cell relationship takes effect), ensuring that the second information accurately reflects the real-time association status between the beam and neighbor cells.

[0146] In this embodiment, by first determining and updating the neighbor cell mapping relationship, the second information can dynamically adapt to changes in the relationship between the beam and the neighbor cells, avoiding matching deviations caused by static information; combined with the time-point delivery mechanism, the real-time performance and accuracy of the neighbor cell information obtained by the first network are ensured, and the processing burden of the first network can be reduced while providing a precise basis for beam-level measurement configuration.

[0147] In some embodiments, before sending the second information to the first network at a first time point, a second time point at which the beam and network cells become adjacent is calculated based on the first information. The first time point is then determined according to the second time point and a preset time period. The preset time period is determined based on the transmission delay.

[0148] In other words, before sending the second information at the specified time, the first device first calculates the specific time (second time point) when the beam forms an adjacency relationship with the TN cell based on the first information and ephemeris; then, combining the transmission delays of the first network and the second network such as signal transmission and signaling processing, a preset time period is set, and the time after the preset time period before the second time point is determined as the first time point, so as to ensure that the second information can be delivered to the first network on time before the neighbor cell relationship takes effect.

[0149] In this embodiment of the disclosure, by accurately calculating the second time point and setting the first time point in combination with the transmission delay, the accuracy of the timing of the neighbor cell relationship taking effect is ensured, and the information delivery delay is avoided by reserving a buffer. This allows the first network to obtain and configure the neighbor cell information in advance, reducing the handover lag caused by the transmission delay.

[0150] Based on the above embodiments, taking the first device as a satellite-ground cooperation gateway, the first network as an NTN network, and the second network as a TN network as an example, the satellite-ground cooperation gateway determines the dynamic neighbor cell mapping relationship between the current satellite's moving leading-edge beam (the first beam) and TN neighbor cells within the current satellite orbital period based on ephemeris information, satellite moving leading-edge beam pointing information (i.e., the first information), and beam coverage information. It then calculates the timing for the current satellite moving leading-edge beam to establish a neighbor cell relationship with its TN cell. The neighbor cell information of the TN neighbor cells is sent to the NTN base station a certain time in advance (denoted as T_offset), and the NTN base station performs beam-level RRC reconfiguration information based on the satellite beam pointing information. In this way, the NTN base station only needs to configure the TN neighbor cell information received from the satellite-ground cooperation gateway into the beam-level indication message, resulting in relatively low computational requirements.

[0151] T_offset depends on the transmission delay from the satellite-ground cooperation gateway to the base station and then to the terminal. For example, the transmission delay from the satellite-ground cooperation gateway sending a signaling message carrying the neighbor cell mapping table, to the NTN base station receiving the signaling message and then carrying it in a system message, to the third device receiving the system message.

[0152] like Figure 6 As shown, in some embodiments, after receiving the second information sent by the first device based on the first information, the first network also sends a radio resource control reconfiguration message to the second device, using the beam direction of the first beam as an identifier. The first beam is the beam corresponding to the beam information; the radio resource control reconfiguration message includes at least one of the following: measurement gap period, measurement gap length, offset, and synchronization signal block measurement timing configuration parameters; the radio resource control reconfiguration message is used to trigger the second device to perform a handover measurement from the first network to the second network.

[0153] In other words, after receiving the second information sent by the first device (space-ground cooperation gateway), the first network (NTN) will send a radio resource control reconfiguration message to the second device (UE) using the beam direction of the first beam as an identifier. The radio resource control reconfiguration message contains parameters such as measurement gap period, length, offset, and synchronization signal block measurement timing configuration. Its purpose is to instruct the UE to initiate handover measurement from NTN to TN, that is, to allow the UE to detect and evaluate the signal of the target TN neighboring cell according to the configuration parameters.

[0154] In this embodiment, reconfiguration messages are sent using beam pointing as an identifier, enabling precise configuration of the UE under specific beam coverage and avoiding resource waste. The measurement parameters included in the reconfiguration message guide the UE to efficiently perform handover measurements, ensuring the accuracy and timeliness of the measurements. By triggering the UE to perform NTN to TN handover measurements in advance, sufficient time is reserved for subsequent handover decisions, effectively reducing handover delays and failures, improving handover accuracy, and ensuring communication continuity for user equipment when moving between satellite and ground networks.

[0155] Based on the above embodiments, taking the first device as a satellite-to-ground cooperation gateway, the first network as an NTN network, and the second network as a TN network as an example, the NTN base station sends beam-level RRC Reconfiguration messages. The beam-level RRC Reconfiguration message is identified by the beam direction and contains TN neighbor cell measurement-related configuration information for the current beam, such as the measurement gap period, measurement gap length, offset, or Synchronization Signal Block Measurement Timing Configuration (SMTC) configuration parameters.

[0156] Based on the neighbor cell handover method provided in the above embodiments, this application also provides a schematic diagram of the structure of a neighbor cell handover device. Figure 7 This is a schematic diagram of the structure of a neighbor cell handover device provided in an embodiment of this disclosure, as shown below. Figure 7 As shown, it includes a receiving module 71, a calculation module 72, and a sending module 73.

[0157] The receiving module 71 is configured to receive first information sent by the first network; the first information is the beam information of the first satellite in the first network.

[0158] The calculation module 72 is configured to determine second information based on the first information and the feature information of the network cell; the network cell is a cell covered by the second network.

[0159] The sending module 73 is configured to send the second information.

[0160] In this embodiment, the receiving module ensures real-time acquisition of beam dynamic information, the computing module achieves accurate matching of neighboring cells in the first and second networks, and the transmitting module ensures efficient transmission of decision information. The collaboration of these three components enables the device to adapt to the dynamic characteristics of satellite beams while accurately associating with terrestrial networks, thus improving the reliability and adaptability of cross-network collaboration.

[0161] In some embodiments, the first network is a non-terrestrial network, and the second network is a terrestrial network. The first information received by the receiving module 71 includes at least one of the beam direction angle and the phased array antenna weights.

[0162] In some embodiments, the calculation module 71 is configured to query ephemeris information associated with the first information; determine beam coverage information of the first beam based on the ephemeris information; the first beam is the beam corresponding to the beam information; and determine the second information according to the beam coverage information and the network cell.

[0163] In some embodiments, the calculation module 71 is configured to calculate the projection area of ​​the first beam onto the ground based on the ephemeris information; and determine the beam coverage information based on the projection area.

[0164] In some embodiments, the calculation module 71 is configured to determine neighboring cells based on the beam coverage information; the neighboring cells are network cells that are adjacent to the ground area covered by the first beam, and the adjacent relationship includes at least one of intersection and overlap; record the feature information of the neighboring cells to generate a neighboring cell set; and generate the second information based on the neighboring cell set.

[0165] In some embodiments, the computing module 71 is configured to send the second information to the first network in a single transmission; the second information includes at least one of the base station location information and cell coverage information of the second network.

[0166] In some embodiments, the calculation module 71 is configured to send the second information to the first network at a first time point; the first time point is determined based on a second time point at which the beam and the network cell generate an adjacency relationship, and the second information includes the neighbor cell mapping relationship between the beam and the network cell.

[0167] In some embodiments, the calculation module 71 is further configured to determine the neighbor cell mapping relationship between the beam and the neighbor cell based on the first information; the neighbor cell is a network cell that has an adjacent relationship with the beam, and the adjacent relationship includes at least one of intersecting and overlapping relationships; and update the second information based on the neighbor cell mapping relationship.

[0168] In some embodiments, the calculation module 71 is configured to calculate a second time point at which the beam and the network cell become adjacent based on the first information; determine the first time point according to the second time point and a preset time period; the preset time period is determined based on the transmission delay.

[0169] In some embodiments, the apparatus further includes a management module 74, which is configured to acquire, store, and manage third information; the third information includes first service area information, second service area information, and the association relationship between the first network and the second network; the first service area information includes ephemeris information, first cell information, and wave position information of the first network; the second service area information includes base station identifier, base station location information, and second cell information of the second network.

[0170] Figure 8 This is a schematic diagram of the structure of a neighbor cell handover device provided in an embodiment of this disclosure, as shown below. Figure 8 As shown, it includes a receiving module 81 and a transmitting module 82.

[0171] The transmitting module 81 is configured to transmit first information to the first device based on the beam information of the first satellite;

[0172] The receiving module 82 is configured to receive second information sent by the first device based on the first information; the second information is determined based on the first information and the feature information of the network cell, wherein the network cell is a cell covered by the second network.

[0173] In this embodiment, the transmitting module 81 reports beam information in real time to ensure that the first device can obtain an accurate NTN dynamic coverage reference; the receiving module 82 efficiently receives precisely calculated neighbor cell information. The two work together to ensure the timeliness of satellite-to-ground neighbor cell relationships through precise information exchange, providing efficient and reliable support for cross-network handover.

[0174] In some embodiments, the transmitting module 81 is configured to send a radio resource control reconfiguration message to the second device using the beam pointing of a first beam as an identifier; the first beam is the beam corresponding to the beam information; wherein the radio resource control reconfiguration message includes at least one of the following: measurement gap period, measurement gap length, offset, and synchronization signal block measurement timing configuration parameters; the radio resource control reconfiguration message is used to trigger the second device to perform a handover measurement from the first network to the second network.

[0175] In some embodiments, the transmitting module 81 is configured to transmit first information to the first device based on the beam information of the first satellite during the satellite orbit period; the first information includes at least one of beam direction angle and phased array antenna weights.

[0176] In some embodiments, for the single-transmission of the second information, the device further includes a calculation module 83. This calculation module is configured to calculate the time when each network cell becomes an effective neighbor cell and its corresponding beam association based on the second information. It then determines a third time point for sending a radio resource control reconfiguration message to the second device based on the aforementioned information. The radio resource control reconfiguration message is identified by the beam direction of the first beam, and the second device is a user equipment, such as a mobile terminal.

[0177] It should be noted that the foregoing explanation of the method embodiments also applies to the apparatus of the embodiments of this disclosure, and the principle is the same. Therefore, the embodiments of this disclosure are not limited thereto.

[0178] According to embodiments of this disclosure, this disclosure also provides an electronic device, a readable storage medium, and a computer program product.

[0179] Figure 9 A schematic block diagram of an example electronic device 900 that can be used to implement embodiments of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0180] like Figure 9 As shown, the electronic device 900 includes a computing unit 901, which can perform various appropriate actions and processes based on a computer program stored in ROM (Read-Only Memory) 902 or a computer program loaded from storage unit 908 into RAM (Random Access Memory) 903. The RAM 903 can also store various programs and data required for the operation of the electronic device 900. The computing unit 901, ROM 902, and RAM 903 are interconnected via a bus 904. An I / O (Input / Output) interface 905 is also connected to the bus 904.

[0181] Multiple components in electronic device 900 are connected to I / O interface 905, including: input unit 906, such as keyboard, mouse, etc.; output unit 907, such as various types of displays, speakers, etc.; storage unit 908, such as disk, optical disk, etc.; and communication unit 909, such as network card, modem, wireless transceiver, etc. Communication unit 909 allows electronic device 900 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0182] The computing unit 901 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the computing unit 901 include, but are not limited to, CPUs (Central Processing Units), GPUs (Graphics Processing Units), various special-purpose AI (Artificial Intelligence) computing chips, various computing units running machine learning model algorithms, DSPs (Digital Signal Processors), and any suitable processor, controller, microcontroller, etc. The computing unit 901 performs the various methods and processes described above, such as neighbor cell handover methods. For example, in some embodiments, the neighbor cell handover method can be implemented as a computer software program tangibly contained in a machine-readable medium, such as storage unit 908. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 900 via ROM 902 and / or communication unit 909. When the computer program is loaded into RAM 903 and executed by the computing unit 901, one or more steps of the methods described above can be performed. Alternatively, in other embodiments, the computing unit 901 may be configured to perform the aforementioned neighbor cell handover method by any other suitable means (e.g., by means of firmware).

[0183] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, FPGAs (Field Programmable Gate Arrays), ASICs (Application-Specific Integrated Circuits), ASSPs (Application-Specific Standard Products), SOCs (System-on-Chips), CPLDs (Complex Programmable Logic Devices), computer hardware, firmware, software, and / or combinations thereof. These various implementations may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0184] The program code used to implement the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0185] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, RAM, ROM, EPROM (Electrically Programmable Read-Only Memory) or flash memory, optical fiber, CD-ROM (Compact Disc Read-Only Memory), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0186] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0187] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication (e.g., communication networks) of any form or medium. Examples of communication networks include LANs (Local Area Networks), WANs (Wide Area Networks), the Internet, and blockchain networks.

[0188] Computer systems can include clients and servers. Clients and servers are generally geographically separated and typically interact via communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. A server can be a cloud server, also known as a cloud computing server or cloud host, a hosting product within the cloud computing service ecosystem, addressing the shortcomings of traditional physical hosts and VPS (Virtual Private Server) services, such as high management difficulty and weak business scalability. Servers can also be servers for distributed systems or servers incorporating blockchain technology.

[0189] It's important to note that artificial intelligence (AI) is the study of enabling computers to simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, and planning). It encompasses both hardware and software technologies. AI hardware technologies generally include sensors, dedicated AI chips, cloud computing, distributed storage, and big data processing. AI software technologies primarily include computer vision, speech recognition, natural language processing, machine learning / deep learning, big data processing, and knowledge graph technologies.

[0190] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0191] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A method for handover of a neighbor cell, the method comprising: The method is applied to a first device, and comprises: receiving first information transmitted by a first network; the first information is beam information of a first satellite in the first network; determining second information according to the first information and characteristic information of a network cell; the network cell is a cell covered by a second network; transmitting the second information.

2. The method of claim 1, wherein, The first network is a non-terrestrial network, and the second network is a terrestrial network; the first information includes at least one of a beam direction angle and a phased array antenna weight.

3. The method according to claim 1 or 2, characterized in that, The determination of the second information according to the first information and the characteristic information of the network cell comprises: inquiring ephemeris information associated with the first information; determining beam coverage information of a first beam according to the ephemeris information; the first beam is a beam corresponding to the beam information; determining the second information according to the beam coverage information and the network cell.

4. The method of claim 3, wherein, The determination of the beam coverage information of the first beam according to the ephemeris information comprises: calculating a projection area of the first beam projected to the ground based on the ephemeris information; determining the beam coverage information according to the projection area.

5. The method of claim 3, wherein, The determination of the second information according to the first information and the characteristic information of the network cell comprises: determining a neighbor cell according to the beam coverage information; the neighbor cell is the network cell having a neighboring relationship with a ground area covered by the first beam, and the neighboring relationship includes at least one of an intersecting relationship and an overlapping relationship; recording characteristic information of the neighbor cell to generate a neighbor cell set; generating the second information according to the neighbor cell set.

6. The method of claim 1, wherein, The transmission of the second information comprises: downloading the second information to the first network at a time; the second information includes at least one of base station position information and cell coverage information of the second network.

7. The method of claim 1, wherein, The transmission of the second information comprises: transmitting the second information to the first network at a first time point; the first time point is determined according to a second time point at which the beam and the network cell have a neighboring relationship, and the second information includes a neighbor cell mapping relationship between the beam and the network cell.

8. The method of claim 7, wherein, Before the transmission of the second information to the first network at the first time point, the method further comprises: determining a neighbor cell mapping relationship between the beam and the neighbor cell according to the first information; the neighbor cell is a network cell having a neighboring relationship with the beam, and the neighboring relationship includes at least one of an intersecting relationship and an overlapping relationship; updating the second information based on the neighbor cell mapping relationship.

9. The method of claim 7, wherein, Before the transmission of the second information to the first network at the first time point, the method further comprises: calculating a second time point at which the beam and the network cell have a neighboring relationship according to the first information; determining the first time point according to the second time point and a preset time period; the preset time period is determined according to a transmission time delay.

10. The method of claim 1, wherein, The method further comprises: obtaining, storing and managing third information; the third information comprises first service area information, second service area information, and an association relationship between the first network and the second network; the first service area information comprises ephemeris information of the first network, first cell information and wave position information; the second service area information comprises base station identification, base station location information and second cell information of the second network.

11. A method of handover of a neighbor cell, the method comprising: The method applied to the first network comprises: sending first information to the first device based on beam information of the first satellite; receiving second information sent by the first device according to the first information; the second information is determined based on the first information and characteristic information of a network cell, and the network cell is a cell covered by the second network.

12. The method of claim 11, wherein, After receiving the second information sent by the first device according to the first information, the method further comprises: sending a radio resource control reconfiguration message to the second device with the beam pointing of the first beam as an identifier; the first beam is a beam corresponding to the beam information; The radio resource control reconfiguration message comprises at least one of a measurement gap period, a measurement gap length, an offset, and synchronization signal block measurement occasion configuration parameters; the radio resource control reconfiguration message is used to trigger the second device to perform handover measurement from the first network to the second network.

13. The method of claim 11, wherein, The method further comprises: sending first information to the first device based on beam information of the first satellite within a satellite orbit period; The first information comprises at least one of beam direction angle and phased array antenna weight.

14. A neighbor cell switching apparatus, characterized by comprising: The method comprises: a receiving module configured to receive first information sent by the first network; The first information is beam information of the first satellite in the first network; a computing module configured to determine second information according to the first information and characteristic information of a network cell; the network cell is a cell covered by the second network; a sending module configured to send the second information.

15. A neighbor cell switching apparatus, comprising: The method comprises a sending module configured to send first information to the first device based on beam information of the first satellite; a receiving module configured to receive second information sent by the first device according to the first information; The second information is determined based on the first information and characteristic information of a network cell, and the network cell is a cell covered by the second network.

16. An electronic device, comprising: The method comprises: at least one processor; and a memory connected in communication with the at least one processor; wherein The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-11.

17. A non-transitory computer-readable storage medium having stored thereon computer instructions, wherein, The computer instructions are used to enable the computer to perform the method of any one of claims 1-10 or 11-13.

18. A computer program product, characterised in that, The computer program, when executed by the processor, implements the method of any one of claims 1-10 or 11-13. The computer program, when executed by the processor, implements the method of any one of claims 1-10 or 11-13.

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