CN115589252B - Method and device for realizing base station switching, electronic equipment and storage medium - Google Patents
Method and device for realizing base station switching, electronic equipment and storage medium Download PDFInfo
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
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Abstract
The disclosure provides a method, a device, electronic equipment and a storage medium for realizing base station switching. The method is applied to a network access configuration function NACF, and comprises the following steps: receiving respective position information and tracking area information of a plurality of satellite base stations; calculating the connection maintaining time of each satellite base station according to the respective position information and tracking area information of each satellite base station; when the base station is switched, determining a target satellite base station from the plurality of satellite base stations according to the connection maintaining time; sensing or calculating time delay between a source base station and the target on-satellite base station; and determining whether to take the target on-board base station as a target base station according to the time delay between the source base station and the target on-board base station so as to switch from the source base station to the target base station.
Description
Technical Field
The disclosure relates to the field of communication technologies, and in particular, to a method and device for implementing base station switching, an electronic device, and a storage medium.
Background
In a star-to-ground fusion network, because the on-board base stations need to periodically move according to the constellation track, the time that each on-board base station can provide service for a terminal varies with the position.
When the satellite-to-ground or inter-satellite base station is switched, the problems of limited service providing time, time delay jitter and the like can be caused due to the periodical movement of the on-satellite base station and the like, so that the service quality and the service continuity are affected.
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 aims to provide a method, an apparatus, an electronic device, and a storage medium for implementing base station switching, where the method can improve service quality and ensure service continuity by including connection maintenance time and time delay between base stations into a switching basis when a satellite base station or an inter-satellite base station is switched.
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.
The embodiment of the disclosure provides a method for implementing base station switching, which is applied to a network access configuration function NACF, and comprises the following steps: receiving respective position information and tracking area information of a plurality of satellite base stations; calculating the connection maintaining time of each satellite base station according to the respective position information and tracking area information of each satellite base station; when the base station is switched, determining a target satellite base station from the plurality of satellite base stations according to the connection maintaining time; sensing or calculating time delay between a source base station and the target on-satellite base station; and determining whether to take the target on-board base station as a target base station according to the time delay between the source base station and the target on-board base station so as to switch from the source base station to the target base station.
In some exemplary embodiments of the present disclosure, the method further comprises: generating a connection maintenance time table according to the connection maintenance time of each satellite base station; acquiring current position information reported by a satellite base station with changed state; and re-determining the connection maintaining time of the satellite base station with the changed state according to the current position information reported by the satellite base station with the changed state, and updating the connection maintaining time table.
In some exemplary embodiments of the present disclosure, determining a target on-board base station from the plurality of on-board base stations according to the connection maintenance time includes: and selecting the satellite base station meeting the connection duration requirement from the plurality of satellite base stations as the target satellite base station.
In some exemplary embodiments of the present disclosure, sensing a time delay between a source base station and the target on-board base station includes: sending a delay report request to the target on-satellite base station; and receiving the time delay between the source base station and the target on-satellite base station, which are sent by the target on-satellite base station.
In some exemplary embodiments of the present disclosure, calculating a time delay between a source base station and the target on-board base station includes: receiving current position information of the source base station reported by the source base station; receiving the current position information of the target on-satellite base station reported by the target on-satellite base station; and calculating the time delay between the source base station and the target satellite base station according to the current position information of the source base station and the current position information of the target satellite base station.
In some exemplary embodiments of the present disclosure, before receiving the current location information of the target on-board base station reported by the target on-board base station, the method further includes: and sending an information reporting request to the target on-satellite base station, wherein the information reporting request is used for requesting the target on-satellite base station to report the current position information of the target on-satellite base station.
In some exemplary embodiments of the present disclosure, determining whether to take the target on-board base station as a target base station according to a time delay between the source base station and the target on-board base station includes: and determining whether the target on-board base station meets the service continuity requirement according to the time delay between the source base station and the target on-board base station, and taking the target on-board base station meeting the service continuity requirement as the target base station.
In some exemplary embodiments of the present disclosure, the connection maintenance time is a time window during which the on-board base station and the user equipment can maintain an air interface connection and transmit data.
The embodiment of the disclosure provides a device for implementing base station switching, which comprises: the receiving module is used for receiving the position information and the tracking area information of each of the plurality of satellite base stations; the determining module is used for calculating the connection maintaining time of each satellite base station according to the respective position information and tracking area information of each satellite base station; the determining module is used for determining a target satellite base station from the plurality of satellite base stations according to the connection maintaining time when the base station is switched; the calculation module is used for sensing or calculating the time delay between the source base station and the target satellite base station; the determining module is further configured to determine, according to a time delay between the source base station and the target on-board base station, whether to use the target on-board base station as a target base station, so as to switch from the source base station to the target base station.
An embodiment of the present disclosure provides an electronic device, including: at least one processor; and the storage terminal equipment is used for storing at least one program, and when the at least one program is executed by the at least one processor, the at least one processor realizes the realization method of the base station switching.
The embodiment of the disclosure provides a computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements a method for implementing any one of the above base station handover.
According to the method for realizing the base station switching, the connection maintaining time of each satellite base station is calculated according to the position information and the tracking area information of each satellite base station, when the base station switching is carried out, the target satellite base station is determined from a plurality of satellite base stations according to the connection maintaining time, so that service providing time as long as possible after the base station switching is ensured, service quality and user experience are improved, and meanwhile frequent base station switching is avoided; the time delay between the source base station and the target on-satellite base station is perceived or calculated, whether the target on-satellite base station is used as the target base station is determined according to the time delay between the source base station and the target on-satellite base station, the time delay meeting the requirement in the base station switching process can be ensured, and the service continuity is ensured; the method enhances the satellite-to-ground or inter-satellite base station switching process by taking the connection maintaining time and the time delay between the base stations into the switching basis when the satellite-to-ground or inter-satellite base stations are switched, thereby improving the service quality and guaranteeing the service continuity.
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 is a flow chart illustrating a method of implementing a base station handoff in accordance with an exemplary embodiment.
Fig. 2 is a flow chart illustrating another method of implementing base station handoff according to an exemplary embodiment.
Fig. 3 is a schematic diagram illustrating interactions between a NACF and a target on-board base station, according to one example.
Fig. 4 is a flow chart illustrating another method of implementing base station handoff according to an exemplary embodiment.
Fig. 5 is a schematic diagram illustrating interactions between a NACF and a target on-board base station, as well as a source base station, according to an example.
Fig. 6 is a flow chart illustrating another method of implementing base station handoff according to an exemplary embodiment.
Fig. 7 is a schematic diagram illustrating interactions between a NACF and a target on-board base station, according to an example.
Fig. 8 is a schematic diagram illustrating interactions between a NACF and a target on-board base station, according to an example.
Fig. 9 is a flow chart illustrating another method of implementing base station handoff according to an exemplary embodiment.
Fig. 10 is a schematic diagram illustrating interactions between a NACF and a target on-board base station, as well as a source base station, according to an example.
Fig. 11 is a block diagram illustrating an apparatus for implementing a base station handoff according to an exemplary embodiment.
Fig. 12 is a schematic diagram of an electronic device according to an exemplary embodiment.
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 terminals and/or microcontroller terminals.
Furthermore, in the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
Hereinafter, each step of the method for implementing the base station handover in the exemplary embodiment of the present disclosure will be described in more detail with reference to the accompanying drawings and embodiments.
Fig. 1 is a flow chart illustrating a method of implementing a base station handoff in accordance with an exemplary embodiment. The method provided by the embodiment of the present disclosure may be performed by the NACF (Network Access Configuration Function ), for example, a calculation awareness module may be added to the NACF to perform the following steps, but the present disclosure is not limited thereto.
As shown in fig. 1, the method for implementing base station handover provided in the embodiment of the present disclosure may include the following steps.
In step S102, position information and tracking area information of each of a plurality of satellite base stations are received.
In the embodiment of the disclosure, the calculation and sensing module in the NACF may receive the position information and tracking area information of each on-board base station reported by a plurality of on-board base stations.
In the embodiment of the disclosure, the position information of the on-board base station may include a satellite ephemeris and a constellation track of the on-board base station, where the satellite ephemeris may include information such as an in-orbit time, a track, a position, and the like of a satellite where the on-board base station is located, and the satellite ephemeris may be used to predict a track of the on-board base station in a certain period of time in the future; the constellation track can comprise the current position information of Wei Xingyun rows of the satellite base station, and the predicted track of the satellite base station in the future preset time period can be obtained by combining the satellite ephemeris and the constellation track (namely combining the current position information and the predicted track information of the satellite base station); the tracking area information may represent the coverage of the satellite in which the on-board base station is located.
In step S104, the connection maintenance time of each satellite base station is calculated from the position information and tracking area information of each satellite base station.
In an exemplary embodiment, the connection maintenance time is a time window in which the on-board base station and the user equipment are able to maintain the air interface connection and transmit data.
In the embodiment of the disclosure, the connection maintaining time of each on-board base station can be calculated according to the satellite ephemeris, constellation track and tracking area information of each on-board base station.
Taking one of the on-board base stations as an example, the connection maintenance time of the on-board base station for one or more user devices can be calculated according to the satellite ephemeris, constellation track and tracking area information of the on-board base station.
Specifically, a predicted track of the on-board base station in a future preset time period can be obtained according to the satellite ephemeris and constellation track of the on-board base station; and determining whether the on-board base station can provide service for the user equipment according to the predicted track and the tracking area information, and calculating the connection maintenance time for the on-board base station to provide service for the user equipment.
In an exemplary embodiment, the method may further include: and generating a connection maintenance time table according to the connection maintenance time of each satellite base station.
The connection maintenance schedule includes continuous maintenance time for each satellite base station to provide service for the user equipment (also referred to as a terminal equipment).
In the embodiment of the disclosure, after the connection maintenance schedule is generated, the connection maintenance schedule may be stored in a calculation awareness module of the NACF, and updated when a state change occurs in the on-board base station.
In step S106, when the base station is switched, the target on-board base station is determined from the plurality of on-board base stations according to the connection maintenance time.
The base station switching in the embodiment of the disclosure can be satellite-to-ground or inter-satellite base station switching; the method can be switched from the satellite base station to another satellite base station or from the ground base station to the satellite base station; the source base station can be an on-board base station or a ground base station, and the target base station is an on-board base station; when a base station handover is performed, one of a plurality of satellite base stations needs to be selected as a target base station.
In the embodiment of the present disclosure, the condition for performing base station switching may be that the source base station cannot continue to provide services for the ue due to the position movement, or the ue actively requests to perform base station switching, or other switching conditions, which is not limited in the present disclosure.
In an exemplary embodiment, determining a target on-board base station from a plurality of on-board base stations based on a connection maintenance time includes: and selecting the satellite base station meeting the connection duration requirement from the plurality of satellite base stations as a target satellite base station.
The meeting of the connection duration requirement may be that the connection duration of the on-board base station is greater than a preset connection duration threshold, and the preset continuous duration threshold may be set according to actual situations, which is not limited in the disclosure; the target on-board base station refers to an on-board base station selected from a plurality of on-board base stations as a candidate target base station.
In the embodiment of the disclosure, one of the on-board base stations with the connection duration greater than the preset connection duration threshold (for example, the on-board base station with the longest connection duration) may be selected from the plurality of on-board base stations as the target on-board base station.
In step S108, the time delay between the source base station and the target on-satellite base station is perceived or calculated.
In the embodiment of the disclosure, the sensing and calculating module in the NACF may sense the time delay between the source base station and the target on-satellite base station, or the sensing and calculating module in the NACF may calculate the time delay between the source base station and the target on-satellite base station.
In the embodiment of the disclosure, the time delay between the source base station and the target on-satellite base station is perceived by sending a time delay report request to the target on-satellite base station, and reporting the time delay between the target on-satellite base station and the source base station.
In the embodiment of the disclosure, the time delay between the source base station and the target on-satellite base station is calculated, that is, the source base station and the target on-satellite base station report their own position information respectively, and the time delay between the source base station and the target on-satellite base station is calculated according to their own position information.
In step S110, it is determined whether to take the target on-board base station as the target base station according to the time delay between the source base station and the target on-board base station, so as to switch from the source base station to the target base station.
In the embodiment of the disclosure, whether the target on-satellite base station is suitable to serve as the target base station is judged again according to the time delay between the source base station and the target on-satellite base station, if the target on-satellite base station is determined to serve as the target base station according to the time delay between the source base station and the target on-satellite base station, relevant information of the target base station can be sent to the source base station so as to enable the source base station to switch; if it is determined that the target on-board base station is not to be the target base station according to the time delay between the source base station and the target on-board base station, then the appropriate on-board base station can be reselected.
In an exemplary embodiment, determining whether to take the target on-board base station as the target base station based on the time delay between the source base station and the target on-board base station includes: and determining whether the target on-board base station meets the service continuity requirement according to the time delay between the source base station and the target on-board base station, and taking the target on-board base station meeting the service continuity requirement as the target base station.
In the embodiment of the present disclosure, the service continuity requirement may be satisfied, for example, that the time delay between the source base station and the target on-satellite base station is smaller than a preset time delay threshold, and the time delay threshold may be set according to an actual situation, which is not limited in the present disclosure.
According to the method for realizing the base station switching, the connection maintaining time of each satellite base station is calculated according to the position information and the tracking area information of each satellite base station, when the base station switching is carried out, the target satellite base station is determined from a plurality of satellite base stations according to the connection maintaining time, so that service providing time as long as possible after the base station switching is ensured, service quality and user experience are improved, and meanwhile frequent base station switching is avoided; the time delay between the source base station and the target on-satellite base station is perceived or calculated, whether the target on-satellite base station is used as the target base station is determined according to the time delay between the source base station and the target on-satellite base station, the time delay meeting the requirement in the base station switching process can be ensured, and the service continuity is ensured; the method enhances the satellite-to-ground or inter-satellite base station switching process by taking the connection maintaining time and the time delay between the base stations into the switching basis when the satellite-to-ground or inter-satellite base stations are switched, thereby improving the service quality and guaranteeing the service continuity.
In addition, a new calculation sensing module is added in the NACF for processing the related operation of connection maintaining time and inter-base station time delay when the satellite base station or the inter-satellite base station is switched, so that the service quality can be improved and the service continuity can be ensured when the satellite base station or the inter-satellite base station is switched in the satellite-ground fusion network.
Fig. 2 is a flow chart illustrating another method of implementing a base station handoff according to an example embodiment, and fig. 3 is a schematic diagram illustrating interactions between a NACF and a target on-board base station according to an example. Fig. 2 shows specific steps of sensing a time delay between a source base station and a target on-board base station, and fig. 3 shows an interaction process between a calculation sensing module of NACF and the target on-board base station in a flow of sensing the time delay between the source base station and the target on-board base station.
In the embodiment of fig. 2, the step S108 in the embodiment of fig. 1 described above may further include the following steps.
In step S202, a delay report request is sent to the target on-board base station.
Referring to fig. 3, in an embodiment of the present disclosure, a calculation awareness module 302 of the NACF may send a delay report request to a target on-board base station 3041, for requesting the target on-board base station to report a delay between the target on-board base station and a source base station.
In the embodiment of the disclosure, the target on-satellite base station can interact with the source base station to obtain the time delay between the source base station and the target on-satellite base station; and responding to the time delay reporting request sent by the NACF calculation sensing module, and reporting the time delay between the source base station and the target satellite base station by the target satellite base station.
In step S204, a time delay between the source base station and the target on-satellite base station transmitted by the target on-satellite base station is received.
Referring to fig. 3, in an embodiment of the present disclosure, a calculation awareness module 302 of the NACF may receive a delay between a source base station and a target on-board base station reported by a target on-board base station 3041, to determine whether to use the target on-board base station as the target base station.
Fig. 4 is a flow chart illustrating another method of implementing a base station handoff according to an example embodiment, and fig. 5 is a schematic diagram illustrating interactions between a NACF and a target on-board base station, as well as a source base station, according to an example. Fig. 4 shows the specific steps of calculating the time delay between the source base station and the target on-board base station, and fig. 5 shows the interaction process between the calculation awareness module of the NACF and the target on-board base station, and the source base station in the process of calculating the time delay between the source base station and the target on-board base station.
In the embodiment of fig. 4, the step S108 in the embodiment of fig. 1 described above may further include the following steps.
In step S402, current location information of a source base station reported by the source base station is received.
In step S404, current location information of the target on-satellite base station reported by the target on-satellite base station is received.
Referring to fig. 5, the source base station 306 may report the position information such as the satellite ephemeris and the constellation track to the NACF, the target on-satellite base station 3041 may report the position information such as the satellite ephemeris and the constellation track to the NACF, and the sensing and calculating module 302 in the NACF may respectively receive the current position information of the source base station reported by the source base station 306 and the current position information of the target on-satellite base station reported by the target on-satellite base station 3041.
It should be noted that, in the embodiment of the present disclosure, the sequence of step S402 and step S404 is not limited; the source base station can report the current position information firstly, and the target satellite base station reports the current position information again; or the target satellite base station can report the current position information firstly, and the source base station reports the current position information again; or the source base station and the target satellite base station can report the current position information of each base station at the same time.
In step S406, a time delay between the source base station and the target on-satellite base station is calculated according to the current position information of the source base station and the current position information of the target on-satellite base station.
In the embodiment of the present disclosure, the perception calculation module 302 in the NACF may calculate the time delay between the source base station and the target on-satellite base station according to the current location information of the source base station and the current location information of the target on-satellite base station.
Specifically, the distance between the source base station and the target on-satellite base station can be calculated according to the current position information of the source base station and the current position information of the target on-satellite base station; and calculating the time delay between the source base station and the target on-board base station according to the distance between the source base station and the target on-board base station and the propagation speed of the radio.
Fig. 6 is a flow chart illustrating another method of implementing a base station handoff according to an example embodiment, and fig. 7 and 8 are diagrams illustrating interactions between a NACF and a target on-board base station according to an example. Fig. 7 shows an interaction procedure between the calculation awareness module of the NACF and the target on-board base station in the flow of calculating the connection maintenance time of the on-board base station, and fig. 8 shows an interaction procedure between the calculation awareness module of the NACF and the target on-board base station in the flow of updating the connection maintenance time of the on-board base station.
The method for implementing the base station handover shown in fig. 6 may further include the following steps on the basis of the method for implementing the base station handover shown in fig. 1.
In step S602, a connection maintenance schedule is generated based on the connection maintenance time of each of the satellite base stations.
Referring to fig. 7, each on-board base station 304 may report information about respective satellite ephemeris, constellation trajectories, and tracking areas (i.e., satellite coverage) to a perception calculation module 302 in the NACF; the perception calculation module 302 calculates the connection maintenance time of each on-board base station 304 according to the information reported by each on-board base station 304; the perception calculation module 302 generates a connection maintenance schedule according to the calculated connection maintenance time of each on-board base station 304.
In step S604, current location information reported by the on-board base station whose status has changed is acquired.
The on-board base station with the state change may be one or more of the above-mentioned on-board base stations, and the following description will take the state change of one on-board base station as an example; the current position information may include at least one of a changed satellite ephemeris, constellation trajectory, and tracking region.
The change of the state may include a change of a position of the on-board base station or a change of a tracking area of the on-board base station; the change in the position of the on-board base station may be that the distance moved by the on-board base station exceeds a preset threshold.
Referring to fig. 8, for example, the state of the on-board base station 3042 changes, and the on-board base station 3042 reports information such as the changed satellite ephemeris, constellation trajectory, tracking area, etc. to the computation and sensing module 302 in the NACF.
In step S606, the connection maintenance time of the satellite base station with changed state is redetermined according to the current position information reported by the satellite base station with changed state, and the connection maintenance schedule is updated.
Referring to fig. 8, the calculation sensing module 302 may re-determine the connection maintenance time of the on-board base station 3042 according to the current location information reported by the on-board base station 3042, and update the connection maintenance time of the on-board base station 3042 in the connection maintenance schedule.
Fig. 9 is a flowchart illustrating another method of implementing a base station handoff according to an exemplary embodiment, and fig. 9 illustrates specific steps for calculating a time delay between a source base station and a target on-board base station.
In the embodiment of fig. 9, the step S108 in the embodiment of fig. 1 described above may further include the following steps.
In step S902, an information report request is sent to the target on-satellite base station, where the information report request is used to request the target on-satellite base station to report the current location information of the target on-satellite base station.
In the embodiment of the present disclosure, after selecting a target on-board base station from a plurality of on-board base stations according to connection maintenance time, the NACF may send an information report request to the target on-board base station, where the information report request is used to request the target on-board base station to report current location information of the target on-board base station; after receiving the information reporting request, the target satellite base station reports the current position information to the NACF; the target on-board base station can report the current satellite ephemeris, constellation track, tracking area, time delay (optional) and other position information of the target on-board base station.
In step S904, current location information of the target on-board base station reported by the target on-board base station is received.
In the embodiment of the disclosure, the NACF may receive the current satellite ephemeris, constellation track, tracking area, time delay (optional) and other location information of the target on-board base station reported by the target on-board base station.
In step S906, a time delay between the source base station and the target on-satellite base station is calculated according to the current position information of the source base station and the current position information of the target on-satellite base station.
In the embodiment of the disclosure, the NACF may calculate, according to the current position information of the source base station and the current position information of the target on-satellite base station, a time delay between the source base station and the target on-satellite base station, and determine, according to the time delay, whether to use the target on-satellite base station as the target base station, so as to perform base station handover.
Fig. 10 is a schematic diagram illustrating interaction between a NACF and a target on-board base station, and a source base station, according to an example, and fig. 10 illustrates an interaction procedure between a computation awareness module of a base station handover enhancement procedure NACF and the target on-board base station, and the source base station.
Referring to fig. 10, a method provided by an embodiment of the present disclosure may include the following steps.
In step S1001, the calculation aware module 302 in the NACF selects a target on-board base station from the connection maintenance schedule.
In step S1002, the calculation awareness module 302 in the NACF sends an information reporting request to the target on-satellite base station 3041, which requests the target on-satellite base station to report the current satellite ephemeris, constellation trajectory, tracking area, time delay (optional) and other location information.
In step S1003, the target on-board base station 302 reports satellite ephemeris, constellation trajectory, tracking area, time delay (optional), etc. location information to the NACF.
In step S1004, the computation sensing module 302 in the NACF senses or computes a time delay between the target on-satellite base station and the source base station; if the delay meets the requirement, the target base station can be switched (i.e. the target on-board base station 3041 is used as the target base station), and the connection maintenance schedule is updated, otherwise, the selection is performed again.
In step S1005, the relevant information of the target base station 3041 is issued to the source base station 306.
In step S1006, a handover is performed from the source base station 306 to the target base station 3041.
It should also be understood that the above is only intended to assist those skilled in the art in better understanding the embodiments of the present disclosure, and is not intended to limit the scope of the embodiments of the present disclosure. It will be apparent to those skilled in the art from the foregoing examples that various equivalent modifications or variations can be made, for example, some steps of the methods described above may not be necessary, or some steps may be newly added, etc. Or a combination of any two or more of the above. Such modifications, variations, or combinations thereof are also within the scope of the embodiments of the present disclosure.
It should also be understood that the foregoing description of the embodiments of the present disclosure focuses on highlighting differences between the various embodiments and that the same or similar elements not mentioned may be referred to each other and are not repeated here for brevity.
It should also be understood that the sequence numbers of the above processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.
It is also to be understood that in the various embodiments of the disclosure, terms and/or descriptions of the various embodiments are consistent and may be referenced to one another in the absence of a particular explanation or logic conflict, and that the features of the various embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.
Examples of the method for determining the network anomaly detection model provided by the present disclosure are described in detail above. It will be appreciated that the computer device, in order to carry out the functions described above, comprises corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The following are device embodiments of the present disclosure that may be used to perform method embodiments of the present disclosure. For details not disclosed in the embodiments of the apparatus of the present disclosure, please refer to the embodiments of the method of the present disclosure.
Fig. 11 is a block diagram illustrating an apparatus for implementing a base station handoff according to an exemplary embodiment. The apparatus may be applied to a NACF network element.
As shown in fig. 11, an implementation apparatus 1100 for base station handover may include: a receiving module 1102, a determining module 1104 and a calculating module 1106.
The receiving module 1102 is configured to receive location information and tracking area information of each of the plurality of on-satellite base stations; the determining module 1104 is configured to calculate a connection maintenance time of each on-board base station according to the respective location information and tracking area information of each on-board base station; the determining module 1104 is further configured to determine, when performing a base station handover, a target on-board base station from the plurality of on-board base stations according to the connection maintenance time; the calculation module 1106 is configured to sense or calculate a time delay between a source base station and the target on-satellite base station; the determining module 1104 is further configured to determine whether to use the target on-board base station as a target base station according to a time delay between the source base station and the target on-board base station, so as to switch from the source base station to the target base station.
In some exemplary embodiments of the present disclosure, the apparatus further comprises: the generating module is used for generating a connection maintenance time table according to the connection maintenance time of each satellite base station; the acquisition module is used for acquiring the current position information reported by the satellite base station with the state changed; the determining module 1104 is further configured to redetermine a connection maintenance time of the on-board base station with the changed state according to the current location information reported by the on-board base station with the changed state, and update the connection maintenance schedule.
In some exemplary embodiments of the present disclosure, the determining module 1104 is further configured to select, from the plurality of on-board base stations, an on-board base station that meets the connection duration requirement as the target on-board base station.
In some exemplary embodiments of the present disclosure, the computing module 1106 is to: sending a delay report request to the target on-satellite base station; and receiving the time delay between the source base station and the target on-satellite base station, which are sent by the target on-satellite base station.
In some exemplary embodiments of the present disclosure, the computing module 1106 is to: receiving current position information of the source base station reported by the source base station; receiving the current position information of the target on-satellite base station reported by the target on-satellite base station; and calculating the time delay between the source base station and the target satellite base station according to the current position information of the source base station and the current position information of the target satellite base station.
In some exemplary embodiments of the present disclosure, the apparatus further comprises: and the sending module is used for sending an information reporting request to the target on-satellite base station, wherein the information reporting request is used for requesting the target on-satellite base station to report the current position information of the target on-satellite base station.
In some exemplary embodiments of the present disclosure, the determining module 1104 is further configured to: and determining whether the target on-board base station meets the service continuity requirement according to the time delay between the source base station and the target on-board base station, and taking the target on-board base station meeting the service continuity requirement as the target base station.
In some exemplary embodiments of the present disclosure, the connection maintenance time is a time window during which the on-board base station and the user equipment can maintain an air interface connection and transmit data.
It should be noted that the block diagrams shown in the above 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 terminals and/or microcontroller terminals.
Fig. 12 is a schematic diagram of an electronic device according to an exemplary embodiment. It should be noted that the electronic device shown in fig. 12 is only an example, and should not impose any limitation on the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 12, the electronic apparatus 1200 includes a Central Processing Unit (CPU) 1201, which can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 1202 or a program loaded from a storage section 1208 into a Random Access Memory (RAM) 1203. In the RAM 1203, various programs and data required for the operation of the electronic apparatus 1200 are also stored. The CPU 1201, ROM 1202, and RAM 1203 are connected to each other through a bus 1204. An input/output (I/O) interface 1205 is also connected to the bus 1204.
The following components are connected to the I/O interface 1205: an input section 1206 including a keyboard, a mouse, and the like; an output portion 1207 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage section 1208 including a hard disk or the like; and a communication section 1209 including a network interface card such as a LAN card, a modem, or the like. The communication section 1209 performs communication processing via a network such as the internet. The drive 1210 is also connected to the I/O interface 1205 as needed. A removable medium 1211 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed as needed on the drive 1210 so that a computer program read out therefrom is installed into the storage section 1208 as needed.
In particular, according to embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from a network via the communication portion 1209, and/or installed from the removable media 1211. The above-described functions defined in the system of the present disclosure are performed when the computer program is executed by a Central Processing Unit (CPU) 1201.
It should be noted that the computer readable medium shown in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, terminal device, or apparatus, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium 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 the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, terminal device, or apparatus. In the present disclosure, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-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 computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, terminal device, or apparatus. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units involved in the embodiments of the present disclosure may be implemented by means of software, or may be implemented by means of hardware. The described units may also be provided in a processor, for example, described as: a processor includes a transmitting unit, an acquiring unit, a determining unit, and a first processing unit. The names of these units do not constitute a limitation on the unit itself in some cases, and for example, the transmitting unit may also be described as "a unit that transmits a picture acquisition request to a connected server".
As another aspect, the present disclosure also provides a computer-readable storage medium that may be included in the electronic device described in the above embodiments; or may exist alone without being incorporated into the electronic device. The computer-readable storage medium carries one or more programs which, when executed by the electronic device, cause the electronic device to implement the methods described in the embodiments below. For example, the electronic device may implement the steps shown in fig. 1.
According to one aspect of the present disclosure, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the methods provided in the various alternative implementations of the above-described embodiments.
It should be understood that any number of elements in the drawings of the present disclosure are for illustration and not limitation, and that any naming is used for distinction only and not for limitation.
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 and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (11)
1. A method for implementing base station handover, which is applied to a network access configuration function NACF network element, the method comprising:
Receiving respective position information and tracking area information of a plurality of satellite base stations;
Calculating the connection maintaining time of each satellite base station according to the respective position information and tracking area information of each satellite base station;
When the base station is switched, determining a target satellite base station from the plurality of satellite base stations according to the connection maintaining time;
Sensing or calculating time delay between a source base station and the target on-satellite base station;
and determining whether to take the target on-board base station as a target base station according to the time delay between the source base station and the target on-board base station so as to switch from the source base station to the target base station.
2. The method as recited in claim 1, further comprising:
Generating a connection maintenance time table according to the connection maintenance time of each satellite base station;
Acquiring current position information reported by a satellite base station with changed state;
And re-determining the connection maintaining time of the satellite base station with the changed state according to the current position information reported by the satellite base station with the changed state, and updating the connection maintaining time table.
3. The method according to claim 1 or 2, wherein determining a target on-board base station from the plurality of on-board base stations based on the connection maintenance time comprises:
And selecting the satellite base station meeting the connection duration requirement from the plurality of satellite base stations as the target satellite base station.
4. The method of claim 1, wherein sensing a time delay between a source base station and the target on-board base station comprises:
Sending a delay report request to the target on-satellite base station;
and receiving the time delay between the source base station and the target on-satellite base station, which are sent by the target on-satellite base station.
5. The method of claim 1, wherein calculating the time delay between the source base station and the target on-board base station comprises:
receiving current position information of the source base station reported by the source base station;
Receiving the current position information of the target on-satellite base station reported by the target on-satellite base station;
and calculating the time delay between the source base station and the target satellite base station according to the current position information of the source base station and the current position information of the target satellite base station.
6. The method of claim 5, wherein prior to receiving the current location information of the target on-board base station reported by the target on-board base station, the method further comprises:
And sending an information reporting request to the target on-satellite base station, wherein the information reporting request is used for requesting the target on-satellite base station to report the current position information of the target on-satellite base station.
7. The method of claim 1, wherein determining whether to treat the target on-board base station as a target base station based on a time delay between the source base station and the target on-board base station comprises:
And determining whether the target on-board base station meets the service continuity requirement according to the time delay between the source base station and the target on-board base station, and taking the target on-board base station meeting the service continuity requirement as the target base station.
8. The method according to any of claims 1-7, wherein the connection maintenance time is a time window during which the on-board base station and user equipment are able to maintain an air interface connection and transmit data.
9. An apparatus for implementing a base station handover, comprising:
The receiving module is used for receiving the position information and the tracking area information of each of the plurality of satellite base stations;
the determining module is used for calculating the connection maintaining time of each satellite base station according to the respective position information and tracking area information of each satellite base station;
The determining module is further configured to determine a target on-board base station from the plurality of on-board base stations according to the connection maintenance time when the base station is switched;
the calculation module is used for sensing or calculating the time delay between the source base station and the target satellite base station;
The determining module is further configured to determine, according to a time delay between the source base station and the target on-board base station, whether to use the target on-board base station as a target base station, so as to switch from the source base station to the target base station.
10. An electronic device, comprising:
At least one processor;
storage means for storing at least one program which, when executed by the at least one processor, causes the at least one processor to implement the method of any one of claims 1 to 8.
11. A computer readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the method according to any one of claims 1 to 8.
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| CN111756454A (en) * | 2019-03-26 | 2020-10-09 | 华为技术有限公司 | Switching method and device in satellite communication |
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