CN116867009B

CN116867009B - Base station switching method, base station switching device, electronic equipment and storage medium

Info

Publication number: CN116867009B
Application number: CN202310870391.1A
Authority: CN
Inventors: 齐文; 王恒; 梅承力; 刘洋; 邢燕霞
Original assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Current assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-11-19
Anticipated expiration: 2043-07-14
Also published as: CN116867009A

Abstract

The disclosure provides a base station switching method, a base station switching device, electronic equipment and a storage medium. The method is applied to the OAM network element of the non-ground operator and comprises the following steps: receiving a first switching early warning notice sent by a non-ground base station; sending a first switching preparation information request to a ground operator OAM network element corresponding to the first ground operator ID; receiving first non-local switching preparation information fed back by an OAM network element of a ground operator, wherein the first non-local switching preparation information comprises at least one second external identifier and a corresponding switching group; and sending second non-terrestrial handover preparation information to the non-terrestrial base station according to the first non-terrestrial handover preparation information, so that the non-terrestrial base station can switch the UE included in each handover group to the terrestrial base station indicated by the corresponding second external identifier according to the second non-terrestrial handover preparation information. The plurality of UEs can be switched to the same ground base station in batches by utilizing the switching group, so that signaling required by a switching process is reduced as a whole, and the switching efficiency is improved.

Description

Base station switching method, base station switching device, electronic equipment and storage medium

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a base station switching method, a base station switching device, an electronic device and a storage medium.

Background

In the field of communication technology, the star on a network device is one of the development trends, and a base station (hereinafter referred to as a non-ground base station) mounted on a satellite or HAP (High Altitude Platform, high-altitude platform) has the advantage of wide coverage.

However, when the number of non-terrestrial base stations deployed is insufficient, or the non-terrestrial base stations burst to provide emergency services for UEs (User Equipment) in a certain area, or some other reasons, the non-terrestrial base stations have insufficient resources, it is necessary to switch the UEs from the non-terrestrial base stations to the terrestrial base stations.

How to switch the UE from a non-terrestrial base station to a terrestrial base station is a challenge to be solved.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure provides a base station switching method, apparatus, electronic device, and storage medium, and at least to some extent provides a way to implement switching a UE from a non-terrestrial base station to a terrestrial base station.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided a base station switching method applied to operation management and maintenance OAM network elements of a non-terrestrial operator, including: receiving a first switching early warning notice sent by a non-ground base station, wherein the first switching early warning notice comprises a first ground operator Identification (ID) and a beam ID; transmitting a first switching preparation information request to a ground operator OAM network element corresponding to the first ground operator ID, wherein the first switching preparation information request comprises a first geographic position area and a first pair of external identifiers of the non-ground base stations, and the first geographic position area is determined based on a beam ID; receiving first non-ground switching preparation information fed back by the OAM network element of the ground operator, wherein the first non-ground switching preparation information comprises the first ground operator ID, a second external identifier of at least one ground base station, a corresponding switching group and the first external identifier, and each switching group comprises at least one User Equipment (UE); and sending second non-terrestrial switching preparation information to the non-terrestrial base station according to the first non-terrestrial switching preparation information, so that the non-terrestrial base station switches the UE included in each switching group to the terrestrial base station indicated by the corresponding second external identifier according to the second non-terrestrial switching preparation information, wherein the second non-terrestrial switching preparation information comprises the first terrestrial operator ID, at least one second external identifier and the corresponding switching group.

In one embodiment of the present disclosure, the receiving the first handover early warning notification sent by the non-terrestrial base station includes: receiving the first switching early warning notification sent by the non-ground base station under a first condition; wherein the first condition includes: the non-ground base station detects that the number of first UE (user Equipment) under the beam corresponding to the beam ID exceeds a first preset early warning threshold; the first UE is a UE belonging to an operator corresponding to the first terrestrial operator ID and satisfying a first handover trigger condition.

In one embodiment of the present disclosure, further comprising: receiving an initial switching triggering condition sent by the OAM network element of the ground operator; adjusting the initial switching triggering condition to obtain the first switching triggering condition; and sending the first switching trigger condition to the non-ground base station.

In one embodiment of the present disclosure, further comprising: transmitting the first preset early warning threshold value and/or the detection period to the non-ground base station; the detection period is a period for indicating the non-ground base station to detect so as to determine whether a switching early warning notification needs to be sent to the OAM network element of the non-ground operator.

In one embodiment of the present disclosure, the sending, to a terrestrial operator OAM network element corresponding to the first terrestrial operator ID, a first handover preparation information request includes: acquiring the running track information and the beam pointing rule of the non-ground base station; determining the position information of the non-ground base station according to the running track information; determining the first geographic location area according to the location information, the beam pointing rule and the beam ID; generating the first handover preparation information request based on the first geographical location area; and sending the first switching preparation information request to the OAM network element of the ground operator.

In one embodiment of the present disclosure, further comprising: receiving a second switching early warning notification sent by the non-ground network equipment under a second condition, wherein the second switching early warning notification comprises a second ground operator ID; the second condition includes: the non-ground base station detects that the number of the second UE is not more than a second preset early warning threshold value under any beam; the second UE belongs to an operator corresponding to the second ground operator ID and meets a second switching trigger condition; and carrying out a switching process based on the second switching early warning notice.

According to another aspect of the present disclosure, there is provided a base station handover method applied to an AMF network element, including: receiving a second switching information preparation request sent by an operation management and maintenance (OAM) network element of a ground operator, wherein the second switching information preparation request comprises a first external identifier and a second geographic position area; determining a plurality of third User Equipment (UE) in the second geographic location area, wherein the third UE is UE which supports wireless access, is in a coverage range of a base station and performs a service which is a preset service; determining a target switching base station of each third UE, and dividing the third UE under the same target switching base station into the same switching group to obtain at least one switching group; transmitting third non-terrestrial switching preparation information to the terrestrial operator OAM network element so that the terrestrial operator OAM network element feeds back first non-terrestrial operator OAM network element based on the third non-terrestrial switching preparation information, wherein the third non-terrestrial operator OAM network element comprises a second external identifier and a first external identifier of the at least one switching group and a corresponding target switching base station; and sending ground switching preparation information to the target switching base station corresponding to each switching group so that the target switching base station can execute a switching process of a third UE included in the switching group based on the ground switching preparation information, wherein the ground switching preparation information comprises the first pair of external identifiers and the switching group.

In one embodiment of the present disclosure, the receiving the second handover information preparation request sent by the OAM network element for operation administration and maintenance of the terrestrial operator includes: receiving the second switching information preparation request sent by the OAM network element of the ground operator under a third condition; wherein the third condition includes: the land operator OAM network element determines at least one land operator AMF network element according to the first geographical location area, and the at least one land operator AMF network element comprises the land operator AMF network element.

According to still another aspect of the present disclosure, there is provided a base station switching apparatus applied to an operation, administration and maintenance OAM network element of a non-terrestrial operator, including: the first receiving module is used for receiving a first switching early warning notice sent by a non-ground base station, wherein the first switching early warning notice comprises a first ground operator Identifier (ID) and a beam ID; a first sending module, configured to send a first handover preparation information request to a land operator OAM network element corresponding to the first land operator ID, where the first handover preparation information request includes a first geographic location area and a first pair of external identifiers of the non-land base station, and the first geographic location area is determined based on a beam ID; the first receiving module is further configured to receive first non-terrestrial handover preparation information fed back by the OAM network element of the terrestrial operator, where the first non-terrestrial handover preparation information includes the first terrestrial operator ID, a second external identifier of at least one terrestrial base station, a corresponding handover group, and the first external identifier, and each handover group includes at least one UE; the first sending module is further configured to send second non-terrestrial handover preparation information to the non-terrestrial base station according to the first non-terrestrial handover preparation information, so that the non-terrestrial base station switches UEs included in each handover group to a terrestrial base station indicated by a corresponding second external identifier according to the second non-terrestrial handover preparation information, where the second non-terrestrial handover preparation information includes the first terrestrial operator ID, at least one second external identifier, and the corresponding handover group.

In one embodiment of the disclosure, the first receiving module is configured to receive the first handover early warning notification sent by the non-terrestrial base station under a first condition; wherein the first condition includes: the non-ground base station detects that the number of first UE (user Equipment) under the beam corresponding to the beam ID exceeds a first preset early warning threshold; the first UE is a UE belonging to an operator corresponding to the first terrestrial operator ID and satisfying a first handover trigger condition.

In one embodiment of the disclosure, the first receiving module is further configured to receive an initial handover triggering condition sent by the OAM network element of the terrestrial operator; the device further comprises an adjusting module for adjusting the initial switching triggering condition to obtain the first switching triggering condition; the first sending module is further configured to send the first handover triggering condition to the non-ground base station.

In one embodiment of the present disclosure, the first sending module is further configured to send the first preset early warning threshold and/or a detection period to the non-ground base station; the detection period is a period for indicating the non-ground base station to detect so as to determine whether a switching early warning notification needs to be sent to the OAM network element of the non-ground operator.

In one embodiment of the disclosure, the first sending module is configured to obtain running track information and beam pointing rules of the non-ground base station; determining the position information of the non-ground base station according to the running track information; determining the first geographic location area according to the location information, the beam pointing rule and the beam ID; generating the first handover preparation information request based on the first geographical location area; and sending the first switching preparation information request to the OAM network element of the ground operator.

In one embodiment of the disclosure, the first receiving module is further configured to receive a second handover early warning notification sent by the non-terrestrial network device under a second condition, where the second handover early warning notification includes a second terrestrial operator ID; the second condition includes: the non-ground base station detects that the number of the second UE is not more than a second preset early warning threshold value under any beam; the second UE belongs to an operator corresponding to the second ground operator ID and meets a second switching trigger condition; the device also comprises an execution module used for carrying out a switching flow based on the second switching early warning notice.

According to still another aspect of the present disclosure, there is provided a base station handover apparatus applied to a terrestrial operator access and mobility management function AMF network element, including: the second receiving module is used for receiving a second switching information preparation request sent by the operation, management and maintenance (OAM) network element of the ground operator, wherein the second switching information preparation request comprises a first external identifier and a second geographic position area; a determining module, configured to determine a plurality of third user equipments UE in the second geographical location area, where the third UE is a UE supporting wireless access, is in a coverage area of a base station, and performs a service that is a predetermined service; the determining module is further configured to determine a target handover base station of each third UE, and divide the third UEs under the same target handover base station into the same handover group to obtain at least one handover group; a second sending module, configured to send third non-terrestrial switching preparation information to the OAM network element of the terrestrial operator, so that the OAM network element of the terrestrial operator feeds back first non-terrestrial switching preparation information to the OAM network element of the non-terrestrial operator based on the third non-terrestrial switching preparation information, where the third non-terrestrial switching preparation information includes a second external identifier and the first external identifier of the at least one switching group and a corresponding target switching base station; the second sending module is further configured to send ground switching preparation information to a target switching base station corresponding to each switching group, so that the target switching base station executes a switching procedure of a third UE included in the switching group based on the ground switching preparation information, where the ground switching preparation information includes the first external identifier and the switching group.

In one embodiment of the disclosure, the second receiving module is configured to receive the second handover information preparation request sent by the OAM network element of the terrestrial operator under a third condition; wherein the third condition includes: the land operator OAM network element determines at least one land operator AMF network element according to the first geographical location area, and the at least one land operator AMF network element comprises the land operator AMF network element.

According to still another aspect of the present disclosure, there is provided an electronic apparatus including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform any of the above described base station handover methods via execution of the executable instructions.

According to yet another aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the above described base station handover methods.

According to yet another aspect of the present disclosure, there is provided a computer program product comprising a computer program or computer instructions loaded and executed by a processor to cause a computer to implement any of the above described base station handover methods.

The technical scheme provided by the embodiment of the disclosure at least comprises the following beneficial effects:

according to the technical scheme provided by the embodiment of the disclosure, the non-ground operation OAM network element can determine the geographic location area of the UE to be switched and the ground operators to which the UE belongs based on the switching early warning notification carrying the ground operator ID and the beam ID sent by the non-ground base station, so that the switching process aiming at the UE belonging to the specific ground operator can be executed, and further, the switching process can be executed for the UE belonging to the different ground operators by carrying different ground operator IDs in different switching early warning notifications.

The method comprises the steps that a request for switching preparation information carrying the external identification of a geographic location area and a non-ground base station is sent to a ground operator OAM network element indicated by a ground operator ID, the ground operator OAM network element can be caused to carry out relevant preparation before switching, non-ground switching preparation information required by a non-ground base station to execute a switching process is fed back to the non-ground operator OAM network element, and the non-ground operator OAM network element forwards the non-ground switching preparation information to the non-ground base station so that the non-ground base station can execute the switching process according to the non-ground switching preparation information.

Further, by carrying the external identifier of the ground base station and the corresponding switching group in the non-ground switching preparation information, the non-ground base station can realize batch switching of the plurality of UEs to the same ground base station according to the external identifier of the ground base station and the corresponding switching group. The mode can reduce the signaling required by the switching flow on the whole, shorten the switching time and improve the switching efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 shows a schematic diagram of a base station handover system in one embodiment of the present disclosure;

Fig. 2 illustrates a flow chart of a base station handover method in one embodiment of the present disclosure;

FIG. 3 illustrates a schematic view of a first geographic location area in one embodiment of the present disclosure;

fig. 4 shows a flow chart of a base station handover method in another embodiment of the present disclosure;

fig. 5 illustrates a base station handover method signaling diagram in one embodiment of the present disclosure;

fig. 6 shows a schematic diagram of a base station switching apparatus in one embodiment of the present disclosure;

fig. 7 shows a schematic diagram of a base station switching apparatus in another embodiment of the present disclosure;

fig. 8 shows a block diagram of an electronic device in one embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.

For ease of understanding, the following first explains the several terms involved in this disclosure as follows:

Non-terrestrial operators: operators corresponding to non-ground network equipment;

Non-terrestrial network devices: including network devices mounted on satellites and HAPs;

non-ground base station: a base station mounted on a satellite or HAP;

non-terrestrial operator OAM (Operation Administration AND MAINTENANCE, operations administration and maintenance) network elements: an OAM network element for serving non-terrestrial network equipment;

Ground operators: operators corresponding to the ground network equipment;

ground operator OAM network element: an OAM network element for serving the ground network equipment;

The terrestrial carrier AMF (ACCESS AND Mobility Management Function ) network element: AMF network elements under the ground operators.

Fig. 1 is a schematic diagram of a base station switching system in an embodiment of the present disclosure, where the base station switching method or base station switching apparatus in various embodiments of the present disclosure may be applied.

As shown in fig. 1, the base station switching system may include: a plurality of non-terrestrial base stations 101, a non-terrestrial operator OAM network element 102, a plurality of terrestrial operator OAM network elements 103, a plurality of terrestrial operator AMF network elements 104, a terrestrial operator AMF network element 1041, and a plurality of terrestrial base stations 105.

Any one of the plurality of non-ground base stations 101 may receive measurement reports reported by UEs belonging to different operators, and determine whether the UEs meet handover trigger conditions of the corresponding ground operators according to the measurement reports. The UE is a UE served by the non-terrestrial base station.

In one embodiment, the handover trigger conditions corresponding to different terrestrial operators may be different or the same, which is not limited by the embodiments of the present disclosure.

The non-terrestrial base station may also periodically detect the number of UEs satisfying the handover trigger condition under different terrestrial operators per beam. For example, the number of beams corresponding to a non-terrestrial base station is 3, and the number of terrestrial operators served by the non-terrestrial base station is 3. The non-terrestrial base station periodically detects the number of UEs satisfying the handover triggering condition under each beam and different terrestrial operators means that, at a certain interval, the number of UEs satisfying the corresponding handover triggering condition under each of the 3 terrestrial operators is detected once under each of the 3 beams, so as to obtain 9 values in total, wherein each value corresponds to one beam and one terrestrial operator.

In one embodiment, when a non-terrestrial base station detects that the number of UEs belonging to a terrestrial operator and satisfying a corresponding handover trigger condition exceeds a preset early warning threshold under one beam, the non-terrestrial base station sends a handover early warning notification to the OAM network element 102 of the non-terrestrial operator, where the handover early warning notification carries the beam ID of the beam and the terrestrial operator ID.

In one embodiment, the preset early warning threshold may be set individually for the terrestrial operators. In one embodiment, the preset pre-warning thresholds corresponding to different terrestrial operators may be the same or different, which is not limited by the embodiments of the present disclosure.

When the non-ground base station detects that one beam is detected, if the number of UEs of each ground operator in the plurality of ground operators satisfying the corresponding switching trigger condition exceeds a preset early warning threshold, a plurality of switching early warning notices are sent to the OAM network element 102 of the non-ground operator, and each switching early warning notice includes a beam ID of the beam and a ground operator ID of one ground operator.

Take the non-terrestrial operator OAM network element 102 as an example to handle a handover early warning notification. When the non-terrestrial carrier OAM network element 102 receives the handover early warning notification sent by the non-terrestrial base station, the terrestrial carrier OAM network element corresponding to the terrestrial carrier ID may be determined from the plurality of terrestrial carrier OAM network elements 103 according to the terrestrial carrier ID carried in the handover early warning notification. And then, sending a first switching preparation information request to the OAM network element of the ground operator, wherein the first switching preparation information request carries a first pair of external identifiers of a first geographic position area and a non-ground base station (the non-ground base station sending the switching early warning notification). Wherein the first geographic location area may be determined from the beam ID.

Then, according to the first geographical location area, the OAM network element of the terrestrial operator may determine one or more AMF network elements belonging to the terrestrial operator and having coverage areas overlapping with the first geographical location area, and determine an area corresponding to each AMF network element, where the areas corresponding to the one or more AMF network elements form the first geographical location area.

Taking a ground operator AMF network element belonging to a local ground operator as a plurality of ground operator AMF network elements 104, and determining one or more ground operator AMF network elements from the plurality of ground operator AMF network elements 104 according to a first geographic location area, including a ground operator AMF network element 1041 as an example.

The OAM network element of the terrestrial operator sends a second handover preparation information request to the AMF network element 1041 of the terrestrial operator, where the second handover preparation information request includes the first pair of external identifiers and the second geographical location area. In one embodiment, the second geographic location area includes an area where the area covered by the land operator AMF network element 1041 overlaps the first geographic location area.

After receiving the second handover preparation information request, the land operator AMF network element 1041 determines a plurality of third UEs needing to be handed over in the second geographical location area. In one embodiment, the third UE is a UE supporting radio access, being in a range covered by the base station and the ongoing service is a predetermined service.

The base station "in the coverage of the base station" may refer to a base station belonging to the terrestrial carrier, or may be any base station to which UE belonging to the terrestrial carrier can access.

In one embodiment, the predetermined traffic is traffic that is not affected by base station handoff or is traffic that is less affected by base station handoff. In one embodiment, the number of services corresponding to the predetermined service is one or more. For example, if the a service is not affected by the base station handover, the service identifier of the a service is input into the predetermined service table in advance, so that the a service is preset as the predetermined service.

Then, the land operator AMF network element 1041 determines a target handover base station of each third UE of the plurality of third UEs from the plurality of land base stations 105, and divides the third UEs corresponding to the same target handover base station into the same handover group, so as to obtain at least one handover group and a second external identifier of the target handover base station corresponding to each handover group, that is, at least one handover group and a corresponding second external identifier.

Then, the land operator AMF network element 1041 feeds back third non-local switching preparation information to the land operator OAM network element, where the third non-local switching preparation information carries the at least one switching group and the corresponding second external identifier and the first external identifier. In one embodiment, the third non-terrestrial handover preparation information carries the at least one handover group and, correspondingly, a second pair of external identities, the first pair of external identities and a terrestrial operator ID.

And, the land operator AMF network element 1041 sends land switching preparation information to the target switching base station corresponding to each switching group, so that the target switching base station executes the switching process of the third UE included in the switching group based on the land switching preparation information, where the land switching preparation information includes the first external identifier and the switching group belonging to the target switching base station.

After the one or more AMF network elements complete feeding back the corresponding third non-local switching preparation information to the OAM network element of the terrestrial operator, the OAM network element of the terrestrial operator generates first non-local switching preparation information according to all the received third non-local switching preparation information. The first non-local switching preparation information comprises switching groups and corresponding second external identifiers, ground operator IDs and first external identifiers in all third non-local switching preparation information.

Then, the terrestrial operator OAM element feeds back the first non-terrestrial operator OAM element 102 with the first non-terrestrial handover preparation information.

After receiving the first non-terrestrial operator OAM network element 102 receives the first non-terrestrial handover preparation information, according to the indication of the first external identifier, the non-terrestrial base station will send second non-terrestrial handover preparation information generated according to the first non-terrestrial handover preparation information to the non-terrestrial base station, so that the non-terrestrial base station switches UEs included in each handover group to a terrestrial base station indicated by the corresponding second external identifier according to the second non-terrestrial handover preparation information. The second non-local switching preparation information carries the ground operator ID, the switching group in the first non-local switching preparation information and a corresponding second external identifier.

In one embodiment, the number of switch groups and corresponding second pair of external identifiers in the first non-trivial switch preparation information may be one or more, i.e. the first non-trivial switch preparation information comprises at least one second pair of external identifiers and corresponding switch groups.

The plurality of non-terrestrial base stations 101, the non-terrestrial operator OAM network element 102, the plurality of terrestrial operator OAM network elements 103, the plurality of terrestrial operator AMF network elements 104, the terrestrial operator AMF network element 1041, and the plurality of terrestrial base stations 105 are connected by a network, and the network may be a wired network or a wireless network.

Alternatively, the wireless network or wired network described above uses standard communication techniques and/or protocols. The network is typically the Internet, but may be any network including, but not limited to, a local area network (Local Area Network, LAN), metropolitan area network (Metropolitan Area Network, MAN), wide area network (Wide Area Network, WAN), mobile, wired or wireless network, private network, or any combination of virtual private networks. In some embodiments, data exchanged over the network is represented using techniques and/or formats including HyperText Mark-up Language (HTML), extensible markup Language (Extensible MarkupLanguage, XML), and the like. All or some of the links may also be encrypted using conventional encryption techniques such as secure sockets layer (Secure Socket Layer, SSL), transport layer security (Transport Layer Security, TLS), virtual private network (Virtual Private Network, VPN), internet protocol security (Internet ProtocolSecurity, IPsec), etc. In other embodiments, custom and/or dedicated data communication techniques may also be used in place of or in addition to the data communication techniques described above.

Those skilled in the art will appreciate that the number of the plurality of non-terrestrial base stations, the plurality of terrestrial operator OAM network elements, the plurality of terrestrial operator AMF network elements, and the plurality of terrestrial base stations in fig. 1 is merely illustrative, and any number of non-terrestrial base stations, terrestrial operator OAM network elements, terrestrial operator AMF network elements, and terrestrial base stations may be provided as desired. The embodiments of the present disclosure are not limited in this regard.

The present exemplary embodiment will be described in detail below with reference to the accompanying drawings and examples.

The embodiment of the disclosure provides a base station switching method which can be executed by any electronic equipment with calculation processing capability. For example, the electronic device is a non-terrestrial operator OAM network element.

Fig. 2 shows a flowchart of a base station switching method in one embodiment of the present disclosure, and as shown in fig. 2, the base station switching method provided in the embodiment of the present disclosure includes the following S201 to S204. Regarding the meaning of the nouns referred to in S201 to S204, reference may be made to the corresponding embodiment of fig. 1, and the description thereof will not be repeated here.

S201, the OAM network element of the non-terrestrial operator receives a first handover early warning notification sent by the non-terrestrial base station, where the first handover early warning notification includes a first terrestrial operator ID and a beam ID.

In one embodiment, the receiving, by the OAM network element of the non-terrestrial operator, the first handover early warning notification sent by the non-terrestrial base station may include: receiving a first switching early warning notice sent by a non-ground base station under a first condition; wherein the first condition comprises: the non-ground base station detects that the number of first UE (user Equipment) under the beam corresponding to the beam ID exceeds a first preset early warning threshold; the first UE is a UE belonging to an operator corresponding to the first terrestrial operator ID and satisfying the first handover trigger condition.

The non-ground base station detects that under one beam, UE belonging to one ground operator and exceeding a certain number meets a switching trigger condition corresponding to the ground operator, generates a switching early warning notice according to the ground operator ID and the beam ID, and sends the switching early warning notice to an OAM network element of the non-ground operator.

Embodiments of the present disclosure are not limited with respect to what the handoff trigger conditions are in particular. May be formulated according to relevant criteria.

In one embodiment, the handover trigger condition corresponding to each terrestrial operator may be preconfigured in the non-terrestrial base station.

In another embodiment, the handover triggering condition corresponding to each terrestrial operator may be configured to the non-terrestrial base station through the OAM network element of the non-terrestrial operator, and correspondingly, before S201, the method further includes: the OAM network element of the non-ground operator receives an initial switching trigger condition sent by the OAM network element of the ground operator; adjusting the initial switching triggering condition to obtain a first switching triggering condition; and sending a first switching trigger condition to the non-ground base station.

In one embodiment, the initial handover trigger condition includes: RSRP (REFERENCE SIGNAL RECEIVING Power, reference signal received Power) lower threshold, RSRQ (REFERENCE SINGNAL RECEIVED Quality, reference signal received Quality) lower threshold, and the like.

And adjusting the initial switching trigger condition, wherein the size of the RSRP lower limit threshold and the RSRQ lower limit threshold can be adjusted. For example, the RSRP lower threshold and the RSRQ lower threshold are both up-regulated by a predetermined value. For example, the lower RSRP threshold in the initial handover trigger condition is-105 dBm, and the adjusted lower RSRP threshold in the first handover trigger condition is-95 dBm. For another example, the RSRP lower threshold and the RSRQ lower threshold are both up-regulated by a predetermined value.

In one embodiment, the first preset early warning value may be preconfigured in the non-terrestrial base station. Regarding what the first preset pre-warning value is, embodiments of the present disclosure are not limited. For example, the first preset early warning value is 100.

In another embodiment, before S201, further comprising: sending a first preset early warning threshold value and/or a detection period to a non-ground base station; the detection period is a period for indicating the non-ground base station to detect so as to determine whether a switching early warning notice needs to be sent to an OAM network element of a non-ground operator.

With respect to a specific value of the detection period, embodiments of the present disclosure are not limited, and for example, the detection period is 5ms (milliseconds), or 10ms, or 1ms, or the like.

S202, the non-terrestrial operator OAM network element sends a first handover preparation information request to a terrestrial operator OAM network element corresponding to the first terrestrial operator ID, where the first handover preparation information request includes a first geographic location area and a first pair of external identifiers of the non-terrestrial base station, and the first geographic location area is determined based on the beam ID.

In one embodiment, the sending, by the non-terrestrial operator OAM network element, the first handover preparation information request to the terrestrial operator OAM network element corresponding to the first terrestrial operator ID may include: acquiring running track information of a non-ground base station and a beam pointing rule; determining the position information of the non-ground base station according to the running track information; determining a first geographic location area according to the location information, the beam pointing rule and the beam ID; generating a first handover preparation information request based on the first geographical location area; and sending a first switching preparation information request to the OAM network element of the ground operator.

In one embodiment, the running track and the beam pointing rule of the non-terrestrial base station may be pre-existing in the OAM network element of the non-terrestrial operator, or may be obtained from the device storing the running track and the beam pointing rule by the OAM network element of the non-terrestrial operator.

The position of the non-ground base station relative to the ground can be determined in real time through the running track, and further the position information of the non-ground base station is obtained. According to the position information of the non-ground base station and the beam pointing rule, the geographic position area covered by each beam can be determined, and then the first geographic position area can be determined according to the beam ID.

As shown in fig. 3, the non-ground base station 301 corresponds to a plurality of beams, each beam covers a certain geographic location area on the ground, and the geographic location areas corresponding to 7 beams determined according to the beam pointing rule are shown in the figure. Taking beam ID as an example of beam 7, the first geographic location area, i.e., the ground location area corresponding to area 302, corresponds accordingly. For example, the ground position area corresponding to the area 302 is an area with a radius of 300km (kilometers) centered on (E117 ° (117 °) and N40 ° (40 °) north latitude).

The first pair of external identifiers of the non-ground base stations are any information that can uniquely identify the non-ground base stations, and the embodiments of the present disclosure are not limited with respect to what information the non-ground base stations are specifically. For example, the information is a base station number of a non-terrestrial base station.

S203, the non-terrestrial operator OAM network element receives first non-terrestrial handover preparation information fed back by the terrestrial operator OAM network element, where the first non-terrestrial handover preparation information includes a first terrestrial operator ID, a second external identifier of at least one terrestrial base station, a corresponding handover group, and a first external identifier, and each handover group includes at least one UE.

The specific implementation of generating the corresponding first non-local switching preparation information according to the first switching preparation information request by the OAM network element of the terrestrial operator will be described in the corresponding embodiment of fig. 4, which is not described herein again.

One second pair of external identities corresponds to one handover group, each handover group comprising at least one UE. For example, a second pair of external identifiers and corresponding switch groups are: second external identifier, switching group { UE1, UE2}, the number of UEs in the switching group is 2.

The second external identifier of the ground base station is any information that can uniquely identify the ground base station, and the embodiments of the present disclosure are not limited with respect to what information the ground base station is specifically. For example, the information is a base station number of a ground base station.

S204, the OAM network element of the non-terrestrial operator sends second non-terrestrial handover preparation information to the non-terrestrial base station according to the first non-terrestrial handover preparation information, so that the non-terrestrial base station switches the UE included in each handover group to the terrestrial base station indicated by the corresponding second external identifier according to the second non-terrestrial handover preparation information, where the second non-terrestrial handover preparation information includes the first terrestrial operator ID, at least one second external identifier, and the corresponding handover group.

The OAM network element of the non-ground operator determines a corresponding non-ground base station according to a first external identifier in the first non-ground switching preparation information, and then sends second non-ground switching preparation information to the non-ground base station, wherein the second non-ground switching preparation information comprises a first ground operator ID, at least one second external identifier and a corresponding switching group.

And after receiving the second non-terrestrial base station preparation information, the non-terrestrial base station switches the UE included in each switching group to the terrestrial base station indicated by the corresponding second external identifier according to the second non-terrestrial switching preparation information.

In one embodiment, when the non-terrestrial base station switches the UE included in each switching group to the terrestrial base station indicated by the corresponding second external identifier, the switching may be performed according to a procedure in the relevant standard.

In one embodiment, when the non-ground base station switches the UE included in each switching group to the ground base station indicated by the corresponding second external identifier, the switching may be based on an Xn interface (the Xn interface is used for interconnection between base station nodes of 5G (5 th Generation Mobile Communication Technology, fifth generation mobile communication technology); but also on the basis of an N2 interface handover (N2 interface is an interface between radio access network nodes).

In another embodiment, the OAM network element of the non-terrestrial operator receives a second handover early warning notification sent by the non-terrestrial network device under a second condition; and carrying out a switching process based on the second switching early warning notice. The second switching early warning notification comprises a second ground operator ID; the second condition includes: the non-ground base station detects that the number of the second UE is not more than a second preset early warning threshold value under any beam; the second UE is a UE belonging to an operator corresponding to the second terrestrial operator ID and satisfying the second handover trigger condition.

That is, when the non-terrestrial base station detects any beam, the number of UEs belonging to the same terrestrial operator and meeting the handover triggering condition is not greater than the corresponding pre-set pre-alarm threshold, a handover pre-alarm notification carrying the terrestrial operator ID is generated and sent to the OAM network element of the non-terrestrial operator, so that the OAM network element of the non-terrestrial operator performs a handover procedure based on the terrestrial operator ID. The handover procedure may be a handover procedure predetermined in the relevant standard.

In one embodiment, in S203 of the embodiment corresponding to fig. 2, after receiving the first handover preparation information request, the OAM network element of the terrestrial operator determines, according to a first geographic location area carried in the first handover preparation information request, at least one AMF network element of the terrestrial operator having a service range overlapping with the first geographic location area. Then, sending a second handover information preparation request to each of the at least one terrestrial carrier AMF network element, the second handover information preparation request of each terrestrial carrier AMF network element comprising: a first external identifier (i.e. a first external identifier carried in the first handover preparation information request) and a second geographical location area, where the second geographical location area includes: an area overlapping between an area served by the AMF network element and the first geographical location area.

Taking an example that the OAM network element of the terrestrial operator sends the second handover information preparation request to the AMF network element of one terrestrial operator, the base station handover method provided in another embodiment of the present disclosure is described, and the method may be executed by any electronic device having computing processing capability. For example, the electronic device is a land operator AMF network element.

Fig. 4 shows a flowchart of a base station switching method in another embodiment of the present disclosure, and as shown in fig. 4, the base station switching method provided in the embodiment of the present disclosure includes the following S401 to S405. Regarding the meaning of the nouns referred to in S401 to S405, reference may be made to the corresponding embodiment of fig. 1, and the description thereof will not be repeated here.

S401, the land operator AMF network element receives a second handover information preparation request sent by the land operator operation administration and maintenance OAM network element, where the second handover information preparation request includes a first external identifier and a second geographical location area.

In one embodiment, the receiving, by the land operator AMF network element, the second handover information preparation request sent by the land operator operation administration and maintenance OAM network element may include: receiving a second switching information preparation request sent by an OAM network element of a ground operator under a third condition; wherein the third condition comprises: the land operator OAM network element determines at least one land operator AMF network element according to the first geographical location area, and the at least one land operator AMF network element comprises a land operator AMF network element (a land operator AMF network element performing S401).

S402, the land operator AMF network element determines a plurality of third UEs in the second geographical location area, where the third UEs support radio access, are in a coverage area of the base station, and perform a service that is a predetermined service.

S403, the AMF network element of the ground operator determines a target switching base station of each third UE, and divides the third UE under the same target switching base station into the same switching group to obtain at least one switching group.

As to how the terrestrial carrier AMF network element determines the target handover base station for each third UE, embodiments of the present disclosure are not limited and may be determined according to the manner specified in the relevant standards.

Each target switching base station corresponds to a second external identifier.

S404, the land operator AMF network element sends third non-terrestrial switching preparation information to the land operator OAM network element, so that the land operator OAM network element feeds back the first non-terrestrial switching preparation information to the non-land operator OAM network element based on the third non-terrestrial switching preparation information, where the third non-terrestrial switching preparation information includes a second external identifier and a first external identifier of at least one switching group and a corresponding target switching base station.

After the land operator AMF network element determines at least one switching group and a corresponding second external identifier, third non-local switching preparation information is generated, where the third non-local switching preparation information may include: at least one switching group and corresponding second external identifier and first external identifier.

In another embodiment, the third non-ground switching preparation information may include: at least one switching group, a corresponding second external identifier, a corresponding first external identifier and a corresponding terrestrial carrier ID.

After receiving the third non-local switching preparation information fed back by each ground operator AMF network element to the second switching preparation information request, the ground operator OAM network element generates first non-local switching preparation information according to the received at least one third non-local switching preparation information. Wherein the number of switching groups included in the first non-terrestrial switching preparation information is a sum of the number of switching groups included in the at least one third non-terrestrial switching preparation information.

And then, the ground operator OAM network element feeds back the first non-ground switching preparation information to the non-ground operator OAM network element. And then the OAM network element of the non-ground operator sends second non-ground switching preparation information to the non-ground base station according to the first non-ground switching preparation information, and the non-ground base station carries out corresponding switching flow according to the second non-ground switching preparation information.

S405, the AMF network element of the ground operator sends ground switching preparation information to the target switching base station corresponding to each switching group, so that the target switching base station executes a switching process of a third UE included in the switching group based on the ground switching preparation information, and the ground switching preparation information includes a first pair of external identifiers and the switching group.

According to the technical scheme provided by the embodiment of the disclosure, the ground operator AMF network element carries the external identifier of the ground base station and the corresponding switching group in the non-ground switching preparation information and the ground switching preparation information, so that the non-ground base station and the ground base station can switch a plurality of UE to the same ground base station in batches according to the switching group. The mode can reduce the signaling required by the switching flow on the whole, shorten the switching time and improve the switching efficiency.

Fig. 5 shows a signaling diagram of a base station switching method in still another embodiment of the present disclosure, and as shown in fig. 5, the base station switching method provided in the embodiment of the present disclosure includes the following S501 to S514. For the meaning of the terms and specific implementation of the steps in S501 to S514, reference may be made to the corresponding embodiments of fig. 1,2 and 4, and the description thereof will not be repeated here.

S501, the OAM network element of the terrestrial operator sends an initial handover trigger condition to the OAM network element of the non-terrestrial operator.

S502, the OAM network element of the non-terrestrial operator configures a first handover trigger condition to the non-terrestrial base station.

S503, the non-terrestrial base station sends a first switching early warning notification to the OAM network element of the non-terrestrial operator, where the first switching early warning notification carries the terrestrial operator ID and the beam ID.

S504, the OAM network element of the non-terrestrial operator determines the first geographical location area according to the beam ID.

S505, the non-terrestrial operator OAM network element sends a first handover information preparation request to the terrestrial operator OAM network element, where the first handover information preparation request carries the first geographical location area and a first pair of external identifiers of the non-terrestrial base station.

S506, the OAM network element of the terrestrial operator selects an AMF network element of the terrestrial operator according to the first geographical location area.

S507, the OAM network element of the terrestrial operator sends a second handover preparation information request to the AMF network element of the terrestrial operator, where the second handover preparation information request carries a second geographical location area and a first pair of external identifiers.

S508, the AMF network element of the ground operator screens out the third UE.

S509, the AMF network element of the ground operator establishes a switching group.

S5101, the land operator AMF network element sends third non-local switching preparation information to the land operator OAM network element, where the third non-local switching preparation information carries at least one switching group and a corresponding second external identifier, a corresponding first external identifier, or further carries a land operator ID.

S5102, the land operator AMF network element transmits land handover preparation information to the target handover base station, where the land handover preparation information includes a first pair of external identifiers and a handover group.

S511, the OAM network element of the terrestrial operator generates the first non-terrestrial switching preparation information according to all the third non-terrestrial switching preparation information.

S512, the terrestrial operator OAM network element sends the first non-terrestrial operator OAM network element a first non-terrestrial handover preparation information.

S513, the non-terrestrial operator OAM network element sends second non-terrestrial handover preparation information to the non-terrestrial base station.

S514, executing a switching flow between the non-ground base station and the target switching base station.

Based on the same inventive concept, two base station switching devices are also provided in the embodiments of the present disclosure, as described in the following embodiments. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.

Fig. 6 is a schematic diagram of a base station switching apparatus in an embodiment of the disclosure, where the apparatus, as shown in fig. 6, is applied to an OAM network element of a non-terrestrial operator, and includes: a first receiving module 601, configured to receive a first handover early warning notification sent by a non-terrestrial base station, where the first handover early warning notification includes a first terrestrial operator ID and a beam ID; a first sending module 602, configured to send a first handover preparation information request to a land operator OAM network element corresponding to a first land operator ID, where the first handover preparation information request includes a first geographical location area and a first pair of external identifiers of a non-land base station, and the first geographical location area is determined based on the beam ID; the first receiving module 601 is further configured to receive first non-terrestrial switching preparation information fed back by an OAM network element of a terrestrial operator, where the first non-terrestrial switching preparation information includes a first terrestrial operator ID, a second external identifier of at least one terrestrial base station, a corresponding switching group, and a first external identifier, and each switching group includes at least one UE; the first sending module 602 is further configured to send second non-terrestrial handover preparation information to the non-terrestrial base station according to the first non-terrestrial handover preparation information, so that the non-terrestrial base station switches the UE included in each handover group to the terrestrial base station indicated by the corresponding second external identifier according to the second non-terrestrial handover preparation information, where the second non-terrestrial handover preparation information includes the first terrestrial operator ID, at least one second external identifier, and the corresponding handover group.

In one embodiment of the present disclosure, a first receiving module 601 is configured to receive a first handover early warning notification sent by a non-terrestrial base station under a first condition; wherein the first condition comprises: the non-ground base station detects that the number of first UE (user Equipment) under the beam corresponding to the beam ID exceeds a first preset early warning threshold; the first UE is a UE belonging to an operator corresponding to the first terrestrial operator ID and satisfying the first handover trigger condition.

In one embodiment of the present disclosure, the first receiving module 601 is further configured to receive an initial handover triggering condition sent by an OAM network element of a terrestrial operator; the device further includes an adjustment module 603, configured to adjust an initial handover triggering condition to obtain a first handover triggering condition; the first sending module 602 is further configured to send a first handover trigger condition to a non-terrestrial base station.

In one embodiment of the present disclosure, the first sending module 601 is further configured to send a first preset early warning threshold and/or a detection period to a non-terrestrial base station; the detection period is a period for indicating the non-ground base station to detect so as to determine whether a switching early warning notice needs to be sent to an OAM network element of a non-ground operator.

In one embodiment of the present disclosure, a first sending module 601 is configured to obtain running track information and beam pointing rules of a non-ground base station; determining the position information of the non-ground base station according to the running track information; determining a first geographic location area according to the location information, the beam pointing rule and the beam ID; generating a first handover preparation information request based on the first geographical location area; and sending a first switching preparation information request to the OAM network element of the ground operator.

In one embodiment of the present disclosure, the first receiving module 602 is further configured to receive a second handover early warning notification sent by the non-terrestrial network device under a second condition, where the second handover early warning notification includes a second terrestrial operator ID; the second condition includes: the non-ground base station detects that the number of the second UE is not more than a second preset early warning threshold value under any beam; the second UE belongs to an operator corresponding to the second ground operator ID and meets a second switching trigger condition; the apparatus further includes an execution module 604, configured to perform a handover procedure based on the second handover early warning notification.

Fig. 7 is a schematic diagram of a base station switching apparatus in another embodiment of the disclosure, where the apparatus is applied to an AMF network element of a terrestrial carrier, as shown in fig. 7, and includes: a second receiving module 701, configured to receive a second handover information preparation request sent by an OAM network element of a terrestrial operator, where the second handover information preparation request includes a first pair of external identifiers and a second geographical location area; a determining module 702, configured to determine a plurality of third UEs in the second geographic location area, where the third UEs support wireless access, are in a coverage area of the base station, and perform a service that is a predetermined service; the determining module 702 is further configured to determine a target handover base station of each third UE, and divide the third UEs under the same target handover base station into the same handover group to obtain at least one handover group; the second sending module 703 is further configured to send third non-terrestrial switching preparation information to the OAM network element of the terrestrial operator, so that the OAM network element of the terrestrial operator feeds back the first non-terrestrial switching preparation information to the OAM network element of the non-terrestrial operator based on the third non-terrestrial switching preparation information, where the third non-terrestrial switching preparation information includes a second external identifier and a first external identifier of at least one switching group and a corresponding target switching base station; the second sending module 703 is further configured to send ground handover preparation information to the target handover base station corresponding to each handover group, so that the target handover base station performs a handover procedure of the third UE included in the handover group based on the ground handover preparation information, where the ground handover preparation information includes a first pair of external identifiers and the handover group.

In one embodiment of the present disclosure, the second receiving module 701 is configured to receive a second handover information preparation request sent by an OAM network element of a terrestrial operator under a third condition; wherein the third condition comprises: the land operator OAM network element determines at least one land operator AMF network element according to the first geographical location area, and the at least one land operator AMF network element comprises the land operator AMF network element.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 800 according to such an embodiment of the present disclosure is described below with reference to fig. 8. The electronic device 800 shown in fig. 8 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 8, the electronic device 800 is embodied in the form of a general purpose computing device. Components of electronic device 800 may include, but are not limited to: the at least one processing unit 810, the at least one memory unit 820, and a bus 830 connecting the various system components, including the memory unit 820 and the processing unit 810.

Wherein the storage unit stores program code that is executable by the processing unit 810 such that the processing unit 810 performs steps according to various exemplary embodiments of the present disclosure described in the section "detailed description of the invention" above.

The storage unit 820 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 8201 and/or cache memory 8202, and may further include Read Only Memory (ROM) 8203.

Storage unit 820 may also include a program/utility 8204 having a set (at least one) of program modules 8205, such program modules 8205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 830 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 800 may also communicate with one or more external devices 840 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 800, and/or any device (e.g., router, modem, etc.) that enables the electronic device 800 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 850. Also, electronic device 800 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 860. As shown in fig. 8, network adapter 860 communicates with other modules of electronic device 800 over bus 830. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 800, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. On which a program product is stored which enables the implementation of the method described above of the present disclosure. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the section "detailed description" above of the disclosure, when the program product is run on the terminal device.

More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

In an exemplary embodiment of the present disclosure, there is also provided a computer program product including a computer program or computer instructions loaded and executed by a processor to cause the computer to carry out the steps according to the various exemplary embodiments of the present disclosure described in the section "detailed description" above.

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order, or that all illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

Claims

1. A base station switching method, characterized in that it is applied to non-terrestrial operators to operate, manage and maintain OAM network elements, comprising:

Receiving a first switching warning notification sent by a non-ground base station, wherein the first switching warning notification includes a first ground operator identification ID and a beam ID;

Sending a first switching preparation information request to a ground operator OAM network element corresponding to the first ground operator ID, where the first switching preparation information request includes a first geographical location area and a first external identifier of the non-ground base station, where the first geographical location area is determined based on a beam ID;

Receive first non-terrestrial switching preparation information fed back by the terrestrial operator OAM network element, where the first non-terrestrial switching preparation information includes the first terrestrial operator ID, a second external identifier of at least one terrestrial base station and a corresponding switching group, and the first external identifier, where each switching group includes at least one user equipment UE;

According to the first non-terrestrial switching preparation information, second non-terrestrial switching preparation information is sent to the non-terrestrial base station, so that the non-terrestrial base station switches the UE included in each switching group to the terrestrial base station indicated by the corresponding second external identifier according to the second non-terrestrial switching preparation information, wherein the second non-terrestrial switching preparation information includes the first terrestrial operator ID, at least one second external identifier and the corresponding switching group.

2. The method according to claim 1, wherein the receiving the first handover warning notification sent by the non-ground base station comprises:

Receiving the first switching warning notification sent by the non-ground base station under the first condition;

Among them, the first condition includes: the non-ground base station detects that the number of first UEs under the beam corresponding to the beam ID exceeds the first preset warning threshold; the first UE belongs to the operator corresponding to the first ground operator ID and meets the first switching trigger condition.

3. The method according to claim 2, further comprising:

Receiving an initial switching trigger condition sent by the ground operator OAM network element;

Adjusting the initial switching trigger condition to obtain the first switching trigger condition;

The first switching triggering condition is sent to the non-ground base station.

4. The method according to claim 2 or 3, further comprising:

Sending the first preset warning threshold and/or detection period to the non-ground base station;

The detection period is a period for instructing the non-terrestrial base station to perform detection to determine whether it is necessary to send a switching warning notification to the non-terrestrial operator OAM network element.

5. The method according to claim 1, wherein the sending a first switching preparation information request to the ground operator OAM network element corresponding to the first ground operator ID comprises:

Obtaining the operation trajectory information and beam pointing rules of the non-ground base station;

Determine the location information of the non-ground base station according to the operation trajectory information;

Determine the first geographical location area according to the location information, the beam pointing rule and the beam ID;

generating the first handover preparation information request based on the first geographical location area;

Send the first switching preparation information request to the ground operator OAM network element.

6. The method according to claim 1, further comprising:

Receiving a second switching warning notification sent by the non-ground base station under a second condition, where the second switching warning notification includes a second ground operator ID; the second condition includes: the non-ground base station detects that the number of second UEs under any beam is not greater than a second preset warning threshold; the second UE is a UE belonging to an operator corresponding to the second ground operator ID and meets a second switching trigger condition;

Perform a switching process based on the second switching warning notification.

7. A base station switching method, characterized in that it is applied to a ground operator access and mobility management function AMF network element, comprising:

Receive a second handover information preparation request sent by a ground operator operation management and maintenance OAM network element, where the second handover information preparation request includes a first external identifier and a second geographical location area;

Determine a plurality of third user equipments UE in the second geographical location area, where the third UE is a UE that supports wireless access, is within the coverage of the base station, and performs a predetermined service;

Determine a target handover base station for each third UE, and group the third UEs under the same target handover base station into the same handover group to obtain at least one handover group;

Sending third non-terrestrial switching preparation information to the terrestrial operator OAM network element, so that the terrestrial operator OAM network element feeds back first non-terrestrial switching preparation information to the non-terrestrial operator OAM network element based on the third non-terrestrial switching preparation information, wherein the third non-terrestrial switching preparation information includes the second external identifier of the at least one switching group and the corresponding target switching base station and the first external identifier;

Ground switching preparation information is sent to the target switching base station corresponding to each switching group, so that the target switching base station executes the switching process of the third UE included in the switching group based on the ground switching preparation information, and the ground switching preparation information includes the first external identifier and the switching group.

8. The method according to claim 7, characterized in that the receiving of the second switching information preparation request sent by the ground operator operation administration and maintenance (OAM) network element comprises:

receiving the second switching information preparation request sent by the ground operator OAM network element under the third condition;

Among them, the third condition includes: the terrestrial operator OAM network element determines at least one terrestrial operator AMF network element according to the first geographical location area, and the at least one terrestrial operator AMF network element includes the terrestrial operator AMF network element.

9. A base station switching device, characterized in that it is applied to non-terrestrial operators to operate, manage and maintain OAM network elements, comprising:

A first receiving module is used to receive a first switching warning notification sent by a non-ground base station, where the first switching warning notification includes a first ground operator identification ID and a beam ID;

A first sending module, configured to send a first switching preparation information request to a ground operator OAM network element corresponding to the first ground operator ID, wherein the first switching preparation information request includes a first geographical location area and a first external identifier of the non-ground base station, wherein the first geographical location area is determined based on a beam ID;

The first receiving module is further used to receive the first non-ground switching preparation information fed back by the ground operator OAM network element, where the first non-ground switching preparation information includes the first ground operator ID, the second external identifier of at least one ground base station and the corresponding switching group, and the first external identifier, and each switching group includes at least one user equipment UE;

The first sending module is also used to send second non-terrestrial switching preparation information to the non-terrestrial base station according to the first non-terrestrial switching preparation information, so that the non-terrestrial base station switches the UE included in each switching group to the terrestrial base station indicated by the corresponding second external identifier according to the second non-terrestrial switching preparation information, wherein the second non-terrestrial switching preparation information includes the first terrestrial operator ID, at least one second external identifier and the corresponding switching group.

10. A base station switching device, characterized in that it is applied to a ground operator access and mobility management function AMF network element, comprising:

A second receiving module is used to receive a second switching information preparation request sent by the ground operator operation management and maintenance OAM network element, where the second switching information preparation request includes a first external identifier and a second geographical location area;

A determination module, configured to determine a plurality of third user equipments UE in the second geographical location area, wherein the third UE is a UE that supports wireless access, is within the coverage of the base station, and performs a predetermined service;

The determination module is further configured to determine a target switching base station for each third UE, and to group the third UEs under the same target switching base station into the same switching group to obtain at least one switching group;

A second sending module is used to send third non-terrestrial switching preparation information to the terrestrial operator OAM network element, so that the terrestrial operator OAM network element feeds back first non-terrestrial switching preparation information to the non-terrestrial operator OAM network element based on the third non-terrestrial switching preparation information, wherein the third non-terrestrial switching preparation information includes the second external identifier of the at least one switching group and the corresponding target switching base station and the first external identifier;

The second sending module is also used to send ground switching preparation information to the target switching base station corresponding to each switching group, so that the target switching base station executes the switching process of the third UE included in the switching group based on the ground switching preparation information, and the ground switching preparation information includes the first external identifier and the switching group.

11. An electronic device, comprising:

Processor; and

A memory, configured to store executable instructions of the processor;

The processor is configured to execute the base station switching method according to any one of claims 1 to 8 by executing the executable instructions.

12. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the base station switching method according to any one of claims 1 to 8 is implemented.