CN113890592A - Communication satellite switching method, integrated heaven and earth information network, device and medium - Google Patents
Communication satellite switching method, integrated heaven and earth information network, device and medium Download PDFInfo
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- CN113890592A CN113890592A CN202111252407.XA CN202111252407A CN113890592A CN 113890592 A CN113890592 A CN 113890592A CN 202111252407 A CN202111252407 A CN 202111252407A CN 113890592 A CN113890592 A CN 113890592A
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
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- 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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Abstract
The invention discloses a communication satellite switching method, a space-ground integrated information network, a computer device and a storage medium, wherein the communication satellite switching method comprises the steps of obtaining access time of each user device and a characteristic service type provided by a first communication satellite for each user device, determining a third weight according to the access time of the user device and the characteristic service type, determining a switching sequence of each user device according to the third weight, switching connection of each user device from the first communication satellite to a second communication satellite and the like. The invention can distribute the user equipments to different moments in a time period for switching under the condition of switching the user equipments in batches, thereby avoiding the impact on the second communication satellite caused by the simultaneous access of the user equipments to the second communication satellite, improving the working stability of the communication satellite, comprehensively considering the influence of the access time and the service type of the user equipments and improving the service stability. The invention is widely applied to the technical field of communication networks.
Description
Technical Field
The invention relates to the technical field of communication networks, in particular to a communication satellite switching method, a heaven and earth integrated information network, a computer device and a storage medium.
Background
The communication satellite switching method composed of the space-based satellite network and the ground-based core network can combine the advantages of large ground communication capacity, low delay, high performance and wide satellite communication coverage. Since the low-earth satellite is close to the ground and the communication delay with the user equipment is low, the user equipment is generally connected with the low-earth satellite when being connected with the satellite network. However, the linear velocity of the low-orbit satellite relative to the ground is also relatively high, the low-orbit satellite connected to the user equipment generally cannot cover the currently connected user equipment after establishing the connection for 10 to 20 minutes, and in order to maintain the continuity of the communication, the service of the user equipment needs to be switched from the current low-orbit satellite to the low-orbit satellite capable of covering the user equipment for a certain period of time. The current related technology is to directly perform handover, which results in concurrent handover of a large number of user equipments in a short time and large signaling overhead, thereby affecting performance of communication satellites before and after handover, and even causing breakdown of the communication satellites.
Interpretation of terms:
SMF, abbreviation of Session Management Function, representing Session Management Function;
UPF: abbreviations for User Plane Function, denoting User Plane functionality;
the SMF network element and the UPF network element are both network elements in the 5G communication network.
Disclosure of Invention
In view of at least one technical problem that when services and connections of a large number of user equipments are switched from one communication satellite to another in a batch manner, performance of the communication satellite is damaged due to a large amount of signaling overhead caused by simultaneous switching, the present invention provides a communication satellite switching method, a space-ground integrated information network, a computer device, and a storage medium.
In one aspect, an embodiment of the present invention includes a method for switching a communication satellite, including:
determining a plurality of user equipment connected to a first communications satellite;
acquiring the access time of each user equipment to the first communication satellite;
acquiring the characteristic service types provided by the first communication satellite for each user equipment;
determining a first weight corresponding to the user equipment according to the access time corresponding to the user equipment;
determining a second weight corresponding to the user equipment according to the characteristic service type corresponding to the user equipment;
the first weight and the second weight corresponding to the user equipment determine a third weight corresponding to the same user equipment;
determining a switching sequence of each user equipment according to a third weight corresponding to each user equipment;
switching the connection of each of the user equipment from the first communication satellite to a second communication satellite in accordance with the determined switching order.
Further, the determining a first weight corresponding to the user equipment according to the access time corresponding to the user equipment includes:
setting the total times of plan switching and the total time of plan switching;
setting a plurality of time periods; the total number of each time period is related to the total number of scheduled switching times, and the total length of each time period is related to the total scheduled switching time;
determining a time period of access time corresponding to each user equipment;
and determining a first weight corresponding to the user equipment according to the time position of the time period in which the user equipment is positioned in all the time periods.
Further, the obtaining the feature service type provided by the first communication satellite to each user equipment includes:
acquiring all service types provided by the first communication satellite for each user equipment;
acquiring the load of each service type;
and determining the service type corresponding to the maximum load in all the service types received by the user equipment as the characteristic service type of the user equipment.
Further, the service type corresponding to the maximum load includes a service type which is maintained for the longest time or a service type which generates the maximum data traffic.
Further, the determining, by the first weight and the second weight corresponding to the user equipment, a third weight corresponding to the same user equipment includes:
calculating the product of the first weight and the second weight corresponding to the user equipment;
and determining the product as a third weight corresponding to the same user equipment.
On the other hand, the embodiment of the invention also comprises a space-ground integrated information network, wherein the space-ground integrated information network comprises:
a first communication satellite and a second communication satellite;
a core network; the core network is configured to:
determining a plurality of user equipment to which a first communication satellite is connected at a first time;
acquiring the access time of each user equipment to the first communication satellite;
acquiring the characteristic service types provided by the first communication satellite for each user equipment;
determining a first weight corresponding to the user equipment according to the access time corresponding to the user equipment;
determining a second weight corresponding to the user equipment according to the characteristic service type corresponding to the user equipment;
the first weight and the second weight corresponding to the user equipment determine a third weight corresponding to the same user equipment;
determining a switching sequence of each user equipment according to a third weight corresponding to each user equipment;
switching the connection of each of the user equipment from the first communication satellite to a second communication satellite in accordance with the determined switching order.
Further, the obtaining the feature service type provided by the first communication satellite to each user equipment includes:
acquiring all service types provided by the first communication satellite for each user equipment;
acquiring the maintaining time length of each service type;
and determining the service type corresponding to the maximum load in all the service types received by the user equipment as the characteristic service type of the user equipment.
Further, the core network comprises an SMF network element and a UPF network element;
the acquiring all service types provided by the first communication satellite to each user equipment includes:
the UPF network element detects the streaming media of each user equipment;
the UPF network element uploads the detection result of the streaming media to the SMF network element;
and the SMF network element analyzes the detection result of the streaming media to obtain each service type.
In another aspect, an embodiment of the present invention further includes a computer apparatus, including a memory and a processor, where the memory is used to store at least one program, and the processor is used to load the at least one program to perform the communication satellite handover method in the embodiment.
In another aspect, the present invention further includes a storage medium in which a program executable by a processor is stored, the program executable by the processor being configured to perform the communication satellite switching method in the embodiments when executed by the processor.
The invention has the beneficial effects that: in the communication satellite switching method in the embodiment, a first weight is determined according to the access time of user equipment accessing a first communication satellite, a second weight is determined according to the characteristic service type obtained by the user equipment at the first communication satellite, a third weight is determined according to the first weight and the second weight, and switching is performed according to the switching sequence determined by the third weight, so that under the condition of batch switching of a plurality of user equipment, the plurality of user equipment can be distributed to different moments in a time period for switching, the impact of the plurality of user equipment accessing a second communication satellite at the same time on the second communication satellite is avoided, and the working stability of the communication satellite is improved; the switching is carried out according to the switching sequence determined by the third weight, the influence of the access time of the user equipment and the service type can be comprehensively considered, the earlier the time for accessing the first communication satellite is, the higher the priority is, the switching is carried out, and the less important the obtained characteristic service type is, the priority is, so that the service stability is improved.
Drawings
Fig. 1 is a schematic view of an application scenario of a communication satellite switching method in an embodiment;
fig. 2 is a flowchart of a communication satellite handover method according to an embodiment.
Detailed Description
In this embodiment, an application scenario of the communication satellite switching method is shown in fig. 1. Referring to the left side of fig. 1, during a first period of time, a first communication satellite sat1 covers a plurality of user equipments including a user equipment a, and a first communication satellite sat1 connects with some or all of the user equipments therein and provides a communication service to the user equipments connected thereto. Referring to the right side of fig. 1, after the first time period ends, a second time period is entered, and a plurality of user equipments including the user equipment a move slowly or statically with respect to the ground, so that the plurality of user equipments including the user equipment a can be regarded as still being within the coverage of the first communication satellite sat1 in the first time period, and since the first communication satellite sat1 moves with respect to the ground, the first communication satellite sat1 is far away from the coverage of the first communication satellite sat 3526 in the first time period, and the first communication satellite sat1 can no longer provide service for the user equipment which provides service in the first time period; and during the second time period, the second communication satellite sat2 comes into range of a plurality of user equipments including the user equipment a, and the second communication satellite sat2 can cover the user equipments, connect with the user equipments and provide communication services, thereby creating a need to switch the connection of the first communication satellite sat1 with the user equipments and the provided communication services to the second communication satellite sat 2.
In this embodiment, the communication satellite provides communication services for the user equipment, and the services may refer to signal relay, network access, link establishment, data stream bearer, and the like. When the connection of the first communication satellite sat1 with the user equipment and the provided communication service are switched to the second communication satellite sat2, only a part of all the user equipment currently connected to the first communication satellite sat1 may be switched to the second communication satellite sat2, and the other part is still connected to the first communication satellite sat1 and the data service is provided by the first communication satellite sat 1. In this embodiment, if not specifically indicated, the user equipments mentioned refer to those user equipments which are originally connected to the first communication satellite sat1, switched to be connected to the second communication satellite sat2 and provided with services by the second communication satellite sat 2.
In this embodiment, the user equipment may be a mobile phone, a tablet computer, or a terminal device such as a special instrument. The first communication satellite and the second communication satellite may be low earth orbit satellites.
In this embodiment, referring to fig. 2, a communication satellite switching method includes the following steps:
s1, determining a plurality of user equipment connected with a first communication satellite;
s2, acquiring access time of each user equipment to the first communication satellite;
s3, acquiring the characteristic service types provided by the first communication satellite for each user equipment;
s4, determining a first weight corresponding to the user equipment according to the access time corresponding to the user equipment;
s5, determining a second weight corresponding to the user equipment according to the characteristic service type corresponding to the user equipment;
s6, determining a third weight corresponding to the same user equipment according to the first weight and the second weight corresponding to the user equipment;
s7, determining the switching sequence of each user equipment according to the third weight corresponding to each user equipment;
and S8, switching the connection of each user equipment from the first communication satellite to the second communication satellite according to the determined switching sequence.
In this embodiment, the steps S1-S8 may be performed by a 5G core network disposed on the ground. Specifically, the 5G core network includes a core network including an SMF network element and a UPF network element, and the steps S1-S3 may be executed by the SMF network element and the UPF network element in cooperation, and the steps S4-S8 may be executed by other network elements having data processing and control functions in the core network.
The user equipment in step S1 may refer to the user equipment that is connected to the first communication satellite in the current first time period and needs to be switched to the user equipment connected to the second communication satellite in the subsequent second time period.
In step S2, when the user equipment just accesses the first communication satellite, the first communication satellite records the access time of the user equipment, and then sends the access time to the 5G core network for storage, so that the 5G core network can record the access time of all the user equipment to the first communication satellite. For example, the first communication satellite may upload data shown in table 1 to the 5G core network, where table 1 records the ID of the user equipment to which the first communication satellite is currently connected, and indicates the access time of each user equipment in the form of an access time stamp. The data shown in table 1 further records the service types provided by the first communication satellite for each user equipment.
TABLE 1
| User ID | Satellite ID | Current time stamp | Access time stamp | Type of service |
| 1 | sat1 | 20210923-10:00:00 | 20210923-09:50:00 | Video |
| 2 | sat1 | 20210923-10:00:00 | 20210923-09:52:00 | Text |
| 3 | sat1 | 20210923-10:00:00 | 20210923-09:53:00 | Mail piece |
In step S3, the 5G core network obtains the feature service types provided by the first communication satellite for each user equipment. In this embodiment, for a specific user equipment, if the first communication satellite only provides a service type for the user equipment, the service type belongs to a feature service type provided by the first communication satellite for the user equipment; if the first communication satellite provides a plurality of service types for the user equipment, one of the plurality of service types can be selected to determine the characteristic service type provided for the user equipment by the first communication satellite.
Specifically, when the 5G core network performs step S3, the following steps may be performed:
s301, acquiring all service types provided by a first communication satellite for each user equipment;
s302, acquiring the load of each service type;
and S303, determining the service type corresponding to the maximum load in all the service types received by the user equipment as the characteristic service type of the user equipment.
Step S302 may be performed by a UPF network element and an SMF network element in the 5G core network together. Specifically, the UPF network element performs streaming media detection on each user equipment, the UPF network element uploads a result of the streaming media detection to the SMF network element, and the SMF network element analyzes the result of the streaming media detection, so that the 5G core network obtains all service types provided by the first communication satellite for each user equipment.
In step S302, the first communication satellite may perform task management on the communication service provided by the user equipment, so as to obtain a load on the first communication satellite caused by the communication service of each service type in the process of providing the communication service to the user equipment by the first communication satellite. Specifically, the load in step S302 may refer to a duration of the communication service or a data traffic generated by the communication service, and thus the traffic type corresponding to the maximum load in step S303 may refer to a traffic type of the communication service that lasts for the longest duration or a traffic type of the communication service that generates the maximum data traffic.
In determining the maintaining duration, referring to table 2, the starting time and the ending time of the service type accepted by each ue may be obtained, and the maintaining duration of the service type may be determined by calculating the time difference between the ending time and the starting time.
TABLE 2
| User ID | Type of service | Service start time | Service end time |
| 1 | Video | 20210922-10:00:00 | 20210922-10:20:00 |
| 2 | Text | 20210922-10:00:00 | 20210922-10:30:00 |
| 3 | Mail piece | 20210922-10:00:00 | 20210922-10:00:30 |
In the case where one user equipment accepts a plurality of service types provided by the first communication satellite and there are some service types more than once, T may be usedijTime representing type j of service accepted by user equipment i, PijThe ordinal index indicating the type j of service accepted by the user equipment i then has
Wherein SPlIs the P-thijStarting time of sub-service type, STlIs the P-thijEnd time of the secondary traffic type. If the service type maintaining the user equipment i for the longest time is taken as the characteristic service type TP of the user equipment iiThen TP can be obtainedi＝arg(max Tij)。
By executing steps S301 to S303, for any user equipment, the feature service type corresponding to the user equipment can be determined.
In step S4, the 5G core network determines a first weight corresponding to the user equipment according to the access time corresponding to the user equipment.
When step S4 is executed, the following steps may be specifically executed:
s401, setting total times of plan switching and total time of plan switching;
s402, setting a plurality of time periods; the total number of each time period is related to the total number of scheduled switching times, and the total length of each time period is related to the total scheduled switching time;
s403, determining the time period of the access time corresponding to each user equipment by using the earliest of all the access times to correspond to the earliest moment in each time period;
s404, determining a first weight corresponding to the user equipment according to the time position of the time period in which the user equipment is located in all the time periods.
In step S401, the 5G core network sets a total number of planned switching times and a total time of planned switching, where the total time of planned switching is a planned time consumed by the 5G core network in the entire process of controlling the plurality of user terminals in the first communication satellite to switch to the second communication satellite, and the total number of planned switching times is a total number of planned times required by the 5G core network in the process of controlling the plurality of user terminals in the first communication satellite to switch to the second communication satellite in batches and the entire switching process.
Specifically, the 5G core network may count the number S of user equipments to be switched among the user equipments connected to the first communication satelliteaIf the number of user equipments expected to be handed over per handover is h, the total number of scheduled handovers may be set to h
Setting the total planned switching time to T, specifically, the size of T may be related to the movement speed of the first communication satellite, for example, considering that the first communication satellite can generally only provide about 10 minutes of service for a certain area under the condition of high-speed movement, T may be set to 10 minutes;
in step S402, the planned switching total time T may be divided into a plurality of time segments, i.e., the total length of all time segments is equal to T. The total number of these time periods is related to the total scheduled switching number Q, for example, the total number of the time periods is equal to the total scheduled switching number Q, that is, the total scheduled switching time T is divided into Q time periods, or the total scheduled switching time T can be divided into more time periods, for example, the total scheduled switching time T is divided into 2Q time periods, and then the length of each time period is
In step S403, the time periods set in step S402And detecting the time slot position corresponding to the access time corresponding to each user equipment. Specifically, the actual access time of each ue may be obtained with reference to table 3, where the ue with ID 1 accesses the first communication satellite at 20210923-09:50:00 and is the ue that accesses the first communication satellite earliest, and therefore, when 20210923-09:50:00 is equivalent to 0, all other actual accesses may actually correspond to corresponding equivalent access times. The length of each time period is
The start and end times of the respective time periods may be set to be respectively
And
and the like, so that the equivalent access time of each user equipment can be corresponded to a time period.
TABLE 3
In this embodiment, referring to table 3, a corresponding weight is set for each time period, so that after the access time of one ue is found, the weight corresponding to the ue, that is, the first weight, can be found. Specifically, a larger first weight value may be set for an earlier time period, so that the earlier the time period in which the access time of one user equipment is located, the larger the first weight value corresponding to the user equipment is.
In step S5, second weights corresponding to various service types may be set. Specifically, a larger second weight value may be set for a service type occupying a larger communication bandwidth, for example, a larger second weight value may be set for a video service type, a medium second weight value may be set for a mail service type, and a smaller second weight value may be set for a text service typeTaking values; and the specific second weight value can also be set according to the emergency degree of the service type or the charge standard of the fee. Thus, after the characteristic service type of a user equipment is found, the weight corresponding to the characteristic service type, that is, the second weight corresponding to the user equipment can be found because the characteristic service type is also a service type. To sum up, a mapping function U () may be set to map the characteristic traffic type to a corresponding second weight, for example, for the characteristic traffic type TPiThe corresponding second weight can be obtained by mapping function U (), and
in step S6, if it is determined through step S4 that the first weight corresponding to the user device i is wiDetermining the second weight corresponding to the user device i as the first weight through step S5
The third weight F corresponding to the user equipment i can be obtained by calculating the product of themiI.e. by
If the principle of the desired switching of the user equipment order is that the earlier the time of accessing the first communication satellite is, the more important the obtained characteristic traffic type is, the more priority the switching is, in case of setting a larger value of the first weight for an earlier time period and a larger value of the second weight for a traffic type occupying a larger communication bandwidth or similar settings, other types of third weight calculation may be set, such that the third weight is a monotonically increasing function of the first weight and simultaneously a monotonically increasing function of the second weight, and the marginal influence of the first weight on the third weight and the marginal influence of the second weight on the third weight may be adjusted according to different traffic demands, for example by
(α and β are constants) or
Calculating the third weight F by equal formulai。
In step S7, the 5G core network determines the switching order of each ue according to the third weight corresponding to each ue. Specifically, if a larger first weight value is set for an earlier time period and a larger second weight value is set for a service type occupying a larger communication bandwidth, in step S8, each user equipment may be switched from the first communication satellite to the second communication satellite in the order from the larger the third weight value; if a smaller first weight value is set for an earlier time period and a smaller second weight value is set for a service type occupying a larger communication bandwidth, in step S8, each user equipment may be switched from the first communication satellite to the second communication satellite in the reverse order, that is, in the order from the smaller to the larger of the third weight values.
Specifically, when performing handover, the principle of the handover time period and the upper limit of the number of user equipments handed over per time period may be followed. For example, in the present embodiment, set
Waiting 2Q time periods, and the upper limit of the number of the user equipment switched in each time period is h, the time period can be within
The h user equipment with the maximum value corresponding to the third weight is switched from the first communication satellite to the second communication satellite, and then the h user equipment enters the time slot
Then, the h user equipments with the maximum third weight value in the rest user equipments are switched from the first communication satellite to the second communication satelliteA communication satellite.
In this embodiment, by determining the first weight according to the access time when the user equipment is accessed to the first communication satellite, determining the second weight according to the feature service type obtained by the user equipment at the first communication satellite, determining the third weight according to the first weight and the second weight, and performing the switching according to the switching sequence determined by the third weight, the plurality of user equipments can be allocated to different times of a time period for switching under the condition of performing batch switching on the plurality of user equipments, so that the impact of the plurality of user equipments simultaneously accessing the second communication satellite on the second communication satellite is avoided, and the working stability of the communication satellite is improved; the switching is carried out according to the switching sequence determined by the third weight, the influence of the access time of the user equipment and the service type can be comprehensively considered, the earlier the time for accessing the first communication satellite is, the higher the priority is, the switching is carried out, and the less important the obtained characteristic service type is, the priority is, so that the service stability is improved.
The 5G core network in this embodiment, the first communication satellite and the second communication satellite may be combined together to form a space-ground integrated information network, so as to achieve the technical effects of improving the working stability of the communication satellite and improving the service stability, which are achieved by the communication satellite switching method in this embodiment.
The communication satellite switching method in the present embodiment may be implemented by writing a computer program for executing the communication satellite switching method in the present embodiment, writing the computer program into a computer device or a storage medium, and executing the communication satellite switching method in the present embodiment when the computer program is read out and run, thereby achieving the same technical effects as the communication satellite switching method in the embodiment.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the descriptions of upper, lower, left, right, etc. used in the present disclosure are only relative to the mutual positional relationship of the constituent parts of the present disclosure in the drawings. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this embodiment, the term "and/or" includes any combination of one or more of the associated listed items.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language ("e.g.," such as "or the like") provided with this embodiment is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, operations of processes described in this embodiment can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described in this embodiment (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein.
A computer program can be applied to input data to perform the functions described in the present embodiment to convert the input data to generate output data that is stored to a non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (10)
1. A communication satellite switching method, the communication satellite switching method comprising:
determining a plurality of user equipment connected to a first communications satellite;
acquiring the access time of each user equipment to the first communication satellite;
acquiring the characteristic service types provided by the first communication satellite for each user equipment;
determining a first weight corresponding to the user equipment according to the access time corresponding to the user equipment;
determining a second weight corresponding to the user equipment according to the characteristic service type corresponding to the user equipment;
the first weight and the second weight corresponding to the user equipment determine a third weight corresponding to the same user equipment;
determining a switching sequence of each user equipment according to a third weight corresponding to each user equipment;
switching the connection of each of the user equipment from the first communication satellite to a second communication satellite in accordance with the determined switching order.
2. The method of claim 1, wherein the determining the first weight corresponding to the user equipment according to the access time corresponding to the user equipment comprises:
setting the total times of plan switching and the total time of plan switching;
setting a plurality of time periods; the total number of each time period is related to the total number of scheduled switching times, and the total length of each time period is related to the total scheduled switching time;
determining a time period of access time corresponding to each user equipment;
and determining a first weight corresponding to the user equipment according to the time position of the time period in which the user equipment is positioned in all the time periods.
3. The method of claim 1, wherein the obtaining the feature service type provided by the first communication satellite to each user equipment comprises:
acquiring all service types provided by the first communication satellite for each user equipment;
acquiring the load of each service type;
and determining the service type corresponding to the maximum load in all the service types received by the user equipment as the characteristic service type of the user equipment.
4. The method of claim 3, wherein the traffic type corresponding to the maximum load comprises a traffic type maintained for a longest period of time or a traffic type generating a maximum data traffic.
5. The method of claim 1, wherein the determining the first weight and the second weight corresponding to the user equipment and the third weight corresponding to the same user equipment comprises:
calculating the product of the first weight and the second weight corresponding to the user equipment;
and determining the product as a third weight corresponding to the same user equipment.
6. A heaven-earth integrated information network, comprising:
a first communication satellite and a second communication satellite;
a core network; the core network is configured to:
determining a plurality of user equipment to which a first communication satellite is connected at a first time;
acquiring the access time of each user equipment to the first communication satellite;
acquiring the characteristic service types provided by the first communication satellite for each user equipment;
determining a first weight corresponding to the user equipment according to the access time corresponding to the user equipment;
determining a second weight corresponding to the user equipment according to the characteristic service type corresponding to the user equipment;
the first weight and the second weight corresponding to the user equipment determine a third weight corresponding to the same user equipment;
determining a switching sequence of each user equipment according to a third weight corresponding to each user equipment;
switching the connection of each of the user equipment from the first communication satellite to a second communication satellite in accordance with the determined switching order.
7. The integrated heaven and earth information network of claim 6, wherein the obtaining the feature service type provided by the first communication satellite to each user equipment comprises:
acquiring all service types provided by the first communication satellite for each user equipment;
acquiring the maintaining time length of each service type;
and determining the service type corresponding to the maximum load in all the service types received by the user equipment as the characteristic service type of the user equipment.
8. The integrated sky-ground information network as claimed in claim 7, wherein the core network comprises SMF network elements and UPF network elements;
the acquiring all service types provided by the first communication satellite to each user equipment includes:
the UPF network element detects the streaming media of each user equipment;
the UPF network element uploads the detection result of the streaming media to the SMF network element;
and the SMF network element analyzes the detection result of the streaming media to obtain each service type.
9. A computer apparatus comprising a memory for storing at least one program and a processor for loading the at least one program to perform the communications satellite handoff method of any of claims 1-5.
10. A storage medium having stored therein a program executable by a processor, wherein the program executable by the processor is configured to perform the communication satellite switching method according to any one of claims 1 to 5 when executed by the processor.
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