CN114040320A - MEC deployment method, device and computer readable storage medium - Google Patents

MEC deployment method, device and computer readable storage medium Download PDF

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Publication number
CN114040320A
CN114040320A CN202111195574.5A CN202111195574A CN114040320A CN 114040320 A CN114040320 A CN 114040320A CN 202111195574 A CN202111195574 A CN 202111195574A CN 114040320 A CN114040320 A CN 114040320A
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mec
target
satellite
time delay
determining
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CN114040320B (en
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邱勇
裴郁杉
张琳
王俊杰
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • 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
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides an MEC deployment method, an MEC deployment device and a computer readable storage medium, relates to the field of communication, and solves the problem that the satellite network operation efficiency is low due to the fact that no clear related MEC deployment scheme exists in air-space-ground integrated communication. The method comprises the following steps: receiving a communication request sent by the electronic equipment, wherein the communication request carries the first position of the electronic equipment, and determining the time delay requirement corresponding to the electronic equipment. And determining an MEC deployment boundary meeting the delay requirement according to the first position, the delay requirement and the first delay. The first time delay is the time delay corresponding to the communication node of the electronic equipment. Satellite orbit data is acquired, and a first target position and/or a second target position for deploying the MEC is/are determined according to the satellite orbit data and the MEC deployment boundary. The first target position is located in a first satellite, and the second target position is located in a target ground server corresponding to a target gateway station of a second satellite. And transmitting the first target position and/or the second target position to the electronic equipment.

Description

MEC deployment method, device and computer readable storage medium
Technical Field
Embodiments of the present application relate to the field of communications, and in particular, to a method and an apparatus for deploying a mobile edge computing technology MEC, and a computer-readable storage medium.
Background
The Mobile Edge Computing (MEC) technology has been widely applied to communication networks, and can sink functions such as computing and storage to network nodes, cache contents with high access volume and high heat in positions close to users, greatly save transmission resources, improve network efficiency, reduce transmission distance, and reduce transmission delay.
The air-ground integrated communication is a future communication development trend, and the MEC technology is applied to a satellite network and can be fused with a ground fifth generation mobile communication technology (5th generation, 5G) network, so that an air-ground fused communication network is realized, and a complete space communication system is formed. However, at present, no related MEC deployment scheme exists in an air-space-ground integrated communication scene, so that the operation efficiency of a satellite network is low, and the use experience of a user is influenced.
Disclosure of Invention
The application provides an MEC deployment method, an MEC deployment device and a computer readable storage medium, and solves the problem that in air-space-ground integrated communication, a satellite network is low in operation efficiency due to the fact that no related MEC deployment scheme is clear.
In a first aspect, the present application provides an MEC deployment method, including: receiving a communication request sent by the electronic equipment, wherein the communication request carries the first position of the electronic equipment, and determining the time delay requirement corresponding to the electronic equipment. And determining an MEC deployment boundary meeting the delay requirement according to the first position, the delay requirement and the first delay. The first time delay is the time delay corresponding to the communication node of the electronic equipment. Satellite orbit data is acquired, and a first target position and/or a second target position for deploying the MEC is/are determined according to the satellite orbit data and the MEC deployment boundary. The first target position is located in a first satellite, and the second target position is located in a target ground server corresponding to a target gateway station of a second satellite. And transmitting the first target position and/or the second target position to the electronic equipment.
In one possible implementation manner, determining, according to the first location, the delay requirement, and the first delay, an MEC deployment boundary that satisfies the delay requirement includes: determining a first distance according to the time delay requirement, the first time delay and the transmission speed of the electric signal; the first time delay comprises the processing time delay of the satellite. And determining an MEC deployment boundary according to the first distance and the first position.
In one possible implementation, determining a first target location and/or a second target location for deploying an MEC based on the satellite orbit data and the MEC deployment boundary includes: and determining a third satellite of which the satellite orbit is intersected with the MEC deployment boundary according to the satellite orbit data and the MEC deployment boundary. A first satellite is determined among the third satellites based on the airtime requirements of the electronic device, the first satellite corresponding to a first target location for deploying the MEC.
In one possible implementation manner, determining, according to the first location, the delay requirement, and the first delay, an MEC deployment boundary that satisfies the delay requirement includes: determining a second distance according to the time delay requirement, the first time delay and the transmission speed of the electric signal; the first time delay comprises the forwarding time delay of a satellite, the forwarding time delay of a first gateway station and the time delay of signal transmission between the first gateway station and a first ground server; the first ground server is a ground server within a preset distance from the first position, the first ground server comprises a target ground server, and the first gateway station is a gateway station with the minimum data transmission distance from the first ground server. And determining an MEC deployment boundary according to the second distance, the first position of the electronic equipment and the second position of the first gateway station.
In one possible implementation, determining a first target location and/or a second target location for deploying an MEC based on the satellite orbit data and the MEC deployment boundary includes: a target MEC deployment boundary is determined within the MEC deployment boundary based on the satellite orbit data, the target MEC deployment boundary intersecting at least one satellite orbit in the satellite orbit data at any time within the target time period. A target ground server corresponding to the target MEC deployment boundary is determined, the target ground server corresponding to a second target location for deploying the MEC.
In one possible implementation, the method further includes: an MEC deployment indication is sent to a first satellite at a first target location and/or a target ground server at a second target location.
In the above scheme, the server receives a communication request sent by the electronic device, where the communication request carries the first location of the electronic device, and determines a delay requirement corresponding to the electronic device. And the server determines an MEC deployment boundary meeting the time delay requirement according to the first position, the time delay requirement and the first time delay. The first time delay is the time delay corresponding to the communication node of the electronic equipment. The server obtains the satellite orbit data and determines a first target position and/or a second target position for deploying the MEC according to the satellite orbit data and the MEC deployment boundary. The first target position is located in a first satellite, and the second target position is located in a target ground server corresponding to a target gateway station of a second satellite. Finally, the server sends the first target position and/or the second target position to the electronic equipment. Therefore, the operation efficiency of the satellite network and the user experience can be improved.
In a second aspect, the present application provides an MEC deployment apparatus comprising: the device comprises an acquisition module, a processing module and a sending module. The acquisition module is used for receiving a communication request sent by the electronic equipment; and also for acquiring satellite trajectory data. Wherein the first position of the electronic device is carried in the communication request. The processing module is used for determining a time delay requirement corresponding to the electronic equipment; the MEC deployment boundary determining unit is further used for determining an MEC deployment boundary meeting the time delay requirement according to the first position, the time delay requirement and the first time delay; and determining a first target location and/or a second target location for deploying the MEC based on the satellite trajectory data and the MEC deployment boundary. The first time delay is the time delay corresponding to the communication node of the electronic device, the first target position is located in the first satellite, and the second target position is located in the target ground server corresponding to the target gateway station of the second satellite. And the sending module is used for sending the first target position and/or the second target position to the electronic equipment.
In one possible implementation, the processing module is specifically configured to: determining a first distance according to the time delay requirement, the first time delay and the transmission speed of the electric signal; the first time delay comprises the processing time delay of the satellite. And determining an MEC deployment boundary according to the first distance and the first position.
In one possible implementation, the processing module is specifically configured to: and determining a third satellite of which the satellite orbit is intersected with the MEC deployment boundary according to the satellite orbit data and the MEC deployment boundary. A first satellite is determined among the third satellites based on the airtime requirements of the electronic device, the first satellite corresponding to a first target location for deploying the MEC.
In one possible implementation, the processing module is specifically configured to: determining a second distance according to the time delay requirement, the first time delay and the transmission speed of the electric signal; the first time delay comprises the forwarding time delay of a satellite, the forwarding time delay of a first gateway station and the time delay of signal transmission between the first gateway station and a first ground server; the first ground server is a ground server within a preset distance from the first position, the first ground server comprises a target ground server, and the first gateway station is a gateway station with the minimum data transmission distance from the first ground server. And determining an MEC deployment boundary according to the second distance, the first position of the electronic equipment and the second position of the first gateway station.
In one possible implementation, the processing module is specifically configured to: a target MEC deployment boundary is determined within the MEC deployment boundary based on the satellite orbit data, the target MEC deployment boundary intersecting at least one satellite orbit in the satellite orbit data at any time within the target time period. A target ground server corresponding to the target MEC deployment boundary is determined, the target ground server corresponding to a second target location for deploying the MEC.
In one possible implementation, the sending module is further configured to send the MEC deployment indication to the first satellite at the first target location and/or the target ground server at the second target location.
In a third aspect, the present application provides an MEC deployment apparatus, including a processor, where when the MEC deployment apparatus runs, the processor executes a computer to execute instructions, so as to cause the MEC deployment apparatus to perform the MEC deployment method according to the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the MEC deployment method as described above in the first aspect.
In a fifth aspect, the present application provides a computer program product comprising instruction code for performing the MEC deployment method as described above in the first aspect.
For the beneficial effects of the second aspect, the third aspect, the fourth aspect, the fifth aspect and various implementation manners thereof in the present application, reference may be made to beneficial effect analysis in the first aspect and various implementation manners thereof, and details are not repeated here.
These and other aspects of the present application will be more readily apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic hardware structure diagram of an MEC deployment apparatus according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of an MEC deployment method according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a scene of an application of an MEC deployment method according to an embodiment of the present application;
fig. 5 is a schematic view of a scenario of an application of another MEC deployment method provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of an MEC deployment apparatus provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specified.
For example, fig. 1 is a schematic diagram of a communication system applied to an MEC deployment method provided in the present application. As shown in fig. 1 (a), the communication system may include a satellite 11, a server 12, and an electronic device 13. The number of the satellites 11 is one or more.
Optionally, the communication system includes at least one satellite 11, and the satellite 11 may include, for example, a low-orbit satellite, a medium-orbit satellite, a geosynchronous orbit satellite, and the like, and the embodiment of the present application does not limit a specific type of the satellite 11.
Alternatively, the server 12 may be a server maintained by a network operator, and may be a device or a server such as a cloud server or a network server that has the capability of acquiring satellite trajectory data and deploying MEC computing resources. The server 12 may be a server, a server cluster composed of a plurality of servers, or a cloud computing service center. In the embodiment of the present application, the apparatus implementing the function of the server 12 may be a server, or may be an apparatus (such as a chip system in the server) supporting the server 12 to implement the function. The embodiment of the present application does not set any limit to the specific type of the server 12.
Alternatively, the electronic device 13 may be a fixed terminal device, or a mobile terminal device. The electronic device 13 may include, for example, a mobile phone (mobile phone), a vehicle-mounted device, a tablet computer (pad), a computer with a wireless transceiving function, a Personal Digital Assistant (PDA), a netbook, a desktop, a laptop, a handheld computer, a notebook, an Artificial Intelligence (AI) terminal, and the like. The embodiment of the present application does not specifically limit the specific form of the electronic device 13. In the embodiment of the present application, the apparatus for implementing the function of the electronic device may be an electronic device, and may also be an apparatus (such as a system on a chip in the electronic device) that supports the electronic device to implement the function.
In some embodiments, the server 12 can establish a communication connection with the electronic device 13 and be configured with a database and computing resources, and after receiving a communication request sent by the electronic device 13, can determine one or more target satellites among the satellites 11 that can deploy the MEC according to the location information of the electronic device 13. Then subsequently, the electronic device 13 may establish a connection directly with the target satellite deploying the MEC to enable communication.
In some scenarios, as shown in fig. 1 (b), the above-described communication system may further include a gateway station 14 and a ground server 15.
Alternatively, the gateway station 14 may include devices, terminal devices, or power supply devices having functions of transmission, reception, antenna, tracking, communication control, and the like. The gateway station 14 is, for example, a ground facility for performing satellite communication. The gateway station 14 may be responsible for the satellite 11 and other devices to establish a communication connection, and the embodiment of the present application is not limited in any way to the specific type of the gateway station 14.
Optionally, the ground server 15 may include, for example, a network node capable of deploying MECs, and may serve as a ground computing resource in the communication process of the electronic device 13. The ground server 15 may be one server, a server cluster including a plurality of servers, or a cloud computing service center. In the embodiment of the present application, the device implementing the function of the ground server 15 may be a server, or may be a device (such as a chip system in the server) supporting the ground server 15 to implement the function. The embodiment of the present application does not set any limit to the specific type of the ground server 15.
In some embodiments, the server 12, after receiving the communication request sent by the electronic device 13, can determine one or more ground servers 15 within a preset range according to the location information of the electronic device 13. The server 12 then determines the gateway station 14 having the smallest data transmission distance corresponding to one or more ground servers 15. The server 12 determines a target ground server for deploying the MEC in the ground server 15 according to the gateway station 14 and the ground server 15, completes the deployment of the MEC, and realizes the communication of the electronic device 13.
It should be noted that the term "communication" in the embodiments of the present application may also be described as "data transmission", "information transmission", or "transmission", etc.
In the above communication system, the satellites 11 constitute a space-based system; the server 12, the electronic device 13, the gateway station 14, and the ground server 15 constitute a ground-based system. The space-based system and the foundation system can be interconnected and intercommunicated, and form a space-ground integrated three-dimensional, multi-layer and heterogeneous broadband wireless communication network, namely an air-ground integrated network, through heterogeneous network fusion. The mobile edge computing technology can improve the network efficiency, so that the MEC is deployed at a position as close to the user as possible, the transmission distance is reduced, the user access delay is reduced, and the return bandwidth waste is reduced. However, at present, no related MEC deployment scheme exists in an air-space-ground integrated communication scene, so that the operation efficiency of a satellite network is low, and the use experience of a user is influenced.
In view of the foregoing problems, the present application provides a mobile edge computing technology MEC deployment method and apparatus, where the deployment method specifically includes: the server receives a communication request sent by the electronic equipment, wherein the communication request carries the first position of the electronic equipment, and determines the time delay requirement corresponding to the electronic equipment. And the server determines an MEC deployment boundary meeting the time delay requirement according to the first position, the time delay requirement and the first time delay. The first time delay is the time delay corresponding to the communication node of the electronic equipment. The server obtains the satellite orbit data and determines a first target position and/or a second target position for deploying the MEC according to the satellite orbit data and the MEC deployment boundary. The first target position is located in a first satellite, and the second target position is located in a target ground server corresponding to a target gateway station of a second satellite. Finally, the server sends the first target position and/or the second target position to the electronic equipment. Therefore, the operation efficiency of the satellite network and the user experience can be improved.
The MEC deployment method provided by the embodiment of the application is applicable to the communication system shown in fig. 1, and the server 12 in fig. 1 belongs to an MEC deployment device. In a specific implementation, the MEC deployment apparatus has the components shown in fig. 2. Fig. 2 is an MEC deployment apparatus provided in the embodiment of the present application, and the MEC deployment apparatus may include at least one processor 202, where the processor 202 is configured to execute an application program code, so as to implement the MEC deployment method provided in the embodiment of the present application.
The processor 202 may be a Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present disclosure.
As shown in fig. 2, the MEC deployment apparatus may further include a memory 203. The memory 203 is used for storing application program codes for executing the scheme of the application, and the processor 202 controls the execution.
The memory 203 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these. The memory 203 may be self-contained and coupled to the processor 202 via the bus 204. The memory 203 may also be integrated with the processor 202.
As shown in fig. 2, the MEC deployment apparatus may further include a communication interface 201, wherein the communication interface 201, the processor 202, and the memory 203 may be coupled to each other, for example, via a bus 204. The communication interface 201 is used for information interaction with other devices, for example, information interaction between the MEC deployment apparatus and other devices is supported.
It is noted that the equipment configuration shown in fig. 2 does not constitute a limitation of the MEC deployment apparatus, which may include more or less components than those shown, or some components in combination, or a different arrangement of components than those shown in fig. 2.
The MEC deployment method provided in the embodiment of the present application is described below with reference to fig. 3, in conjunction with the communication system shown in fig. 1 and the MEC deployment apparatus shown in fig. 2.
Fig. 3 is a schematic flowchart of an MEC deployment method provided in an embodiment of the present application. Referring to fig. 3, the MEC deployment method includes the following steps.
S301, the server receives a communication request sent by the electronic equipment.
In some embodiments, the electronic device sends a communication request to the server when access to the network is required. For example, the electronic device sends a communication request to the server when first accessing the network. For another example, when the electronic device moves the location and switches the access network, it sends a communication request to the server. Wherein the first position of the electronic device is carried in the communication request. Therefore, the server can determine the position of the electronic device after receiving the communication request sent by the electronic device.
S302, the server determines the time delay requirement corresponding to the electronic equipment.
In some embodiments, the delay requirement includes, for example, a requirement of response time of each network node in a communication process of the electronic device, and the server may determine the delay requirement according to a Service Level Agreement (SLA). Optionally, before the electronic device accesses the network, the network operator may obtain the SLA of the electronic device, and further determine the corresponding delay requirement. Specifically, the SLA is a basic service agreement in the communication service, and parameters required in SLAs of different electronic devices are the same or different, and the parameters may include a bandwidth threshold, a latency threshold, and a reliability threshold. The server determines a delay threshold value therein, i.e. determines a corresponding delay requirement.
For example, after the server receives a communication request of the electronic device, the server may retrieve the SLA corresponding to the electronic device from a database storing SLAs corresponding to all electronic devices, and determine a corresponding delay requirement in the SLA.
It should be noted that when the electronic device sends a communication request, for example, a user of the electronic device operates an electronic competitive game, since the game provider needs to provide a good user experience, the game provider signs a Service Level Agreement (SLA), that is, a server of the network provider can determine a delay requirement in the SLA corresponding to the electronic device.
S303, the server determines an MEC deployment boundary meeting the time delay requirement according to the first position, the time delay requirement and the first time delay.
The first time delay is the time delay corresponding to the communication node of the electronic equipment. The communication node is a network node supporting the communication of the electronic equipment in the communication process of the electronic equipment.
In some embodiments, the MEC may be deployed on a satellite with computing resources, and the MEC calculation may be performed directly through the satellite after the electronic device establishes a connection with the satellite. Alternatively, the MEC may be deployed on a ground server with computing resources, and the MEC calculation is performed by the ground server near the gateway station during the satellite communication performed by the electronic device.
In some embodiments, the server determines the first distance based on the latency requirement, the first latency, and the speed of transmission of the electrical signal. Wherein the first time delay comprises a processing time delay of the satellite. The first distance is used to represent the furthest distance the MEC resource can be deployed. The server then determines an MEC deployment boundary based on the first distance and the first location. For example, the electronic device may determine the MEC deployment boundary according to the first distance and the first location, corresponding to the communication scenario shown in fig. 1 (a) above.
Illustratively, assume the delay requirement is D, the processing delay of the satellite is D1, and the transmission speed of the electrical signal is s. Then, the server may determine that the first distance is s (D-D)1). As shown in fig. 4, after determining that the first position of the electronic device is 401 and the first distance, the server determines a corresponding sphere by taking the first position 401 as a center of a circle and the first distance as a radius, where the sphere of the sphere is a corresponding MEC deployment boundary of the electronic device at this time. Wherein D, D1, s is greater than 0.
It will be appreciated that the electronics are located on the ground and the MEC deployment boundary should be a partial sphere in the upper part of the ground of the sphere.
It should be noted that, in the embodiment of the present application, it is assumed that the processing delays of all satellites are the same, and are D1. It can be understood that in an actual application scenario, processing time delays of different satellites may be different, and then the server may determine a plurality of spheres by the above method according to different processing time delays, which is not described in detail herein.
In other embodiments, the server determines the second distance based on the latency requirement, the first latency, and the speed of transmission of the electrical signal. The first time delay comprises the forwarding time delay of the satellite, the forwarding time delay of the first gateway station and the time delay of signal transmission between the first gateway station and the first ground server. The first ground server is a ground server within a preset distance from the first position, the first ground server comprises a target ground server, and the first gateway station is a gateway station with the minimum data transmission distance from the first ground server. And then, the server determines the MEC deployment boundary according to the second distance, the first position of the electronic equipment and the second position of the first gateway station. For example, corresponding to the communication scenario shown in fig. 1 (b) above, the electronic device may determine the MEC deployment boundary according to the second distance, the location of the electronic device, and the location of the gateway station.
Illustratively, assuming the delay requirement is D, the satellite retransmission delay is D2, the first gateway station retransmission time is D3, and the first ground server signal transmission delay is D4. Then, the server determines the second distance as s (D-D)2-D3-D4). As shown in fig. 5, after determining the first position 501 and the second distance of the electronic device, the server may obtain a corresponding ellipsoid by using the first position 501 as one focus, the first gateway station 502 as another focus, and the second distance as a semi-major axis, where a spherical surface of the ellipsoid is a corresponding MEC boundary of the electronic device at this time. Wherein D2, D3 and D4 are more than 0.
It is understood that the number of the first ground servers within the preset distance from the first position of the electronic device is one or more, the number of the corresponding first gateway stations is one or more, and the number of the ellipsoids determined by the final server is one or more.
Furthermore, the electronics are located at the surface and the MEC deployment boundary should be a partial ellipsoid of the upper surface half of the ellipsoid.
In one possible implementation, the first ground server may be a network node within a range of a circle centered at the first location of the electronic device and determined by an empirical value as a radius. The network node which can be used as a ground server can be a data center, a communication machine room and a base station machine room. When there is no corresponding network node in the range obtained according to the empirical value, the server may correspondingly enlarge the empirical value or determine the network node by using another method, which is not specifically limited in the embodiment of the present application.
In one possible implementation, the first gateway station may be an intermediate station that receives a satellite signal and may transmit the signal to the satellite, and the first gateway station is a gateway station having a smallest data transmission distance with the first ground server among a plurality of gateway stations around the first ground server.
It should be noted that some data transmission in terrestrial communication requires cable support, so the data transmission distance does not refer to a straight line distance from a point in a physical sense to a point.
S304, the server acquires satellite orbit data.
In some embodiments, the satellite trajectory data may include satellite orbit information, satellite operating cycles, satellite operating times, satellite operating positions, and the like. The server may obtain, through a satellite system of the network operator, satellites and corresponding orbit data that support the network operator to provide the user network service.
S305, the server determines a first target position and/or a second target position for deploying the MEC according to the satellite orbit data and the MEC deployment boundary.
The first target position is located in a first satellite, and the second target position is located in a target ground server corresponding to a target gateway station of a second satellite. That is, the MEC may be deployed on a satellite with computing resources, or may be deployed on a ground-based server. Or, deployed simultaneously on a satellite with computing resources and on a terrestrial server.
In some embodiments, corresponding to the scenario described above in fig. 4, the server determines a third satellite whose satellite orbit intersects the MEC deployment boundary based on the satellite orbit data and the MEC deployment boundary. Thereafter, the server determines a first satellite among the third satellites according to the communication time requirements of the electronic device, the first satellite corresponding to a first target location for deploying the MEC.
For example, as shown in fig. 4, the server determines, according to the satellite orbit data, satellite orbits intersecting with a sphere, and determines a first time when a satellite on each intersected satellite orbit enters the sphere and a second time when the satellite leaves the sphere, and further determines that there are satellites located in the sphere during the communication time of the electronic device, so as to determine that a plurality of corresponding satellites are used to ensure that the electronic device can have satellites to support communication of the electronic device during the communication time. For example, there may be corresponding satellites supporting electronic device communications at different time periods within 24 hours, and the positions of these satellites may be determined as the first target positions for deploying the MEC.
Alternatively, assuming the server determines that there are multiple satellites located within the sphere for a certain period of time, one of the satellites may be selected to be the first satellite for deployment of the MEC.
In other embodiments, corresponding to the scenario of fig. 5 described above, the server determines a target MEC deployment boundary within the MEC deployment boundaries based on the satellite orbit data, the target MEC deployment boundary intersecting at least one satellite orbit in the satellite orbit data at any time within the target time period. Thereafter, the server determines a target ground server corresponding to the target MEC deployment boundary, the target ground server corresponding to a second target location for deploying the MEC.
In a possible implementation manner, the electronic device corresponds to a plurality of first ground servers, and the plurality of first ground servers corresponds to a plurality of first gateway stations, and thus corresponds to a plurality of ellipsoids, that is, corresponds to a plurality of MEC deployment boundaries. The server determines satellite orbits intersected with the ellipsoids according to the satellite orbit data, determines first time when the satellites on the intersected satellite orbits enter the ellipsoids and second time when the satellites leave the ellipsoids, further determines that the ellipsoids in which the satellites operate exist in the ellipsoids at any moment in the target time period, and takes the ellipsoids of the ellipsoids as target MEC deployment boundaries. The server then determines a target ground server for the second target location (i.e., the ground server for the focal location of the ellipsoid) corresponding to the target MEC deployment boundary. Alternatively, the target time period is, for example, 24 hours.
It should be noted that, at least one ellipsoid existing in the satellite to operate in the ellipsoid at any time in the target time period is included in the plurality of ellipsoids, and when a plurality of ellipsoids exist that can serve as deployment boundaries of the target MEC, an ellipsoid of a certain ellipsoid may be determined as a deployment boundary of the target MEC according to different requirements.
In some scenarios, when the server does not find that there is an ellipsoid in which the satellite runs within the ellipsoid at any time within the target time period, it may be determined that an ellipsoid in which there is an ellipsoid with the longest satellite running time among the ellipsoids is a deployment boundary of the target MEC, that is, the range of the target time period is narrowed. Thereafter, during periods when no satellites are in operation, the server may deploy MECs on the satellites, such as the scenario illustrated in fig. 4 above, and the server may determine the first satellite with computing resources. And then, the MEC is deployed on the target ground server and the first satellite, so that the communication experience of the user is ensured.
In other scenarios, the server, by using the method in the scenario shown in fig. 4, fails to determine that there is a satellite in the ball at any time, and may determine a time period in which no satellite is operating as the target time period. Then, by using the method applied in the scenario shown in fig. 5, the corresponding ellipsoid is determined, and further the corresponding target ellipsoid and the corresponding target ground server are determined according to the target time period. Thereby, the MEC is deployed on the first satellite and the target ground server, and the communication experience of the user is ensured.
S306, the server sends the first target position and/or the second target position to the electronic equipment.
In some embodiments, the server, upon determining the first target location and/or the second target location for deploying the MEC, transmits the first target location and/or the second target location to the electronic device. Then subsequently, the electronic device may choose to communicate via MEC resources of the first destination location and/or the second destination location.
Optionally, the server further needs to send an MEC deployment indication to the corresponding first satellite and/or target ground server of the first target location and/or the second target location to complete the deployment of the MEC. The server may issue an MEC deployment instruction and a first target position of the first satellite to the satellite control system, so that the satellite control system completes the MEC deployment of the first satellite. The satellite control system may be a cloud server.
In the above scheme, the server receives a communication request sent by the electronic device, where the communication request carries the first location of the electronic device, and determines a delay requirement corresponding to the electronic device. And the server determines an MEC deployment boundary meeting the time delay requirement according to the first position, the time delay requirement and the first time delay. The first time delay is the time delay corresponding to the communication node of the electronic equipment. The server obtains the satellite orbit data and determines a first target position and/or a second target position for deploying the MEC according to the satellite orbit data and the MEC deployment boundary. The first target position is located in a first satellite, and the second target position is located in a target ground server corresponding to a target gateway station of a second satellite. Finally, the server sends the first target position and/or the second target position to the electronic equipment. Therefore, the operation efficiency of the satellite network and the user experience can be improved.
In the embodiment of the present application, functional modules of the MEC deployment apparatus may be divided according to the method embodiment, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
The method provided by the embodiment of the present application is described in detail above with reference to fig. 3 to 5. Hereinafter, the MEC deployment apparatus provided in the embodiment of the present application is described in detail with reference to fig. 6. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and therefore, for brevity, details are not repeated here, since the details that are not described in detail may be referred to the above method embodiments.
The embodiment of the application provides an MEC deployment device, which may be the server, or a chip or a functional module of the server. For example, taking an MEC deployment apparatus as the server in the above method embodiment as an example, the MEC deployment apparatus may implement the steps or the flow executed by the server in the above method embodiment.
Fig. 6 shows a schematic structural diagram of an MEC deployment apparatus. The MEC deployment apparatus includes an obtaining module 601, a processing module 602, and a sending module 603.
An obtaining module 601, configured to receive a communication request sent by an electronic device; and also for acquiring satellite trajectory data. For example, referring to fig. 3, the obtaining module 601 is configured to execute S301 and S304. A processing module 602, configured to determine a delay requirement corresponding to an electronic device; the MEC deployment boundary determining unit is further used for determining an MEC deployment boundary meeting the time delay requirement according to the first position, the time delay requirement and the first time delay; and determining a first target location and/or a second target location for deploying the MEC based on the satellite trajectory data and the MEC deployment boundary. For example, referring to fig. 3, the processing module 602 is configured to execute S302, S303, and S305. A sending module 603, configured to send the first target location and/or the second target location to the electronic device. For example, referring to fig. 3, the sending module 603 is configured to execute S306.
Optionally, the processing module 602 is further configured to determine a first distance according to the time delay requirement, the first time delay, and the transmission speed of the electrical signal; and further configured to determine the MEC deployment boundary based on the first distance and the first location.
Optionally, the processing module 602 is further configured to determine, according to the satellite orbit data and the MEC deployment boundary, a third satellite in which the satellite orbit intersects with the MEC deployment boundary; and is further configured to determine the first satellite among the third satellites based on the airtime requirements of the electronic device.
Optionally, the processing module 602 is further configured to determine a second distance according to the time delay requirement, the first time delay, and the transmission speed of the electrical signal; and determining an MEC deployment boundary based on the second distance, the first location of the electronic device, and the second location of the first gateway station.
Optionally, the processing module 602 is further configured to determine a target MEC deployment boundary in the MEC deployment boundaries according to the satellite orbit data; and the method is also used for determining a target ground server corresponding to the target MEC deployment boundary.
Optionally, the sending module 603 is further configured to send an MEC deployment indication to the first satellite at the first target location and/or the target ground server at the second target location.
The obtaining module 601 and the sending module 603 may also be implemented as a transceiver module, implemented by a transceiver or a transceiver-related circuit component, or implemented as a transceiver or a transceiver unit.
Another embodiment of the present application further provides a computer-readable storage medium, in which instructions are stored, and when the instructions are executed on an MEC deployment apparatus, the MEC deployment apparatus executes the steps of the server in the MEC deployment method according to the embodiment shown in fig. 3.
In another embodiment of the present application, there is also provided a computer program product comprising computer executable instructions stored in a computer readable storage medium; the processor of the MEC deployment apparatus may read the computer executable instructions from the computer readable storage medium, and the processor executes the computer executable instructions to cause the MEC deployment apparatus to perform the steps of the server in the MEC deployment method according to the embodiment shown in fig. 3.
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and the function thereof is not described herein again.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Those of ordinary skill in the art would appreciate that the various illustrative modules, elements, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, e.g., multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (15)

1. A mobile edge computing technology (MEC) deployment method is applied to a server, and comprises the following steps:
receiving a communication request sent by electronic equipment; the communication request carries a first position of the electronic equipment;
determining a time delay requirement corresponding to the electronic equipment;
determining an MEC deployment boundary meeting the time delay requirement according to the first position, the time delay requirement and a first time delay; the first time delay is a time delay corresponding to a communication node of the electronic equipment;
acquiring satellite orbit data;
determining a first target location and/or a second target location for deploying an MEC in accordance with the satellite trajectory data and the MEC deployment boundary; the first target position is located in a first satellite, and the second target position is located in a target ground server corresponding to a target gateway station of a second satellite;
and sending the first target position and/or the second target position to the electronic equipment.
2. The MEC deployment method according to claim 1, wherein the determining, according to the first location, the latency requirement, and a first latency, an MEC deployment boundary that satisfies the latency requirement comprises:
determining a first distance according to the time delay requirement, the first time delay and the transmission speed of the electric signal; the first time delay comprises a processing time delay of the satellite;
determining the MEC deployment boundary according to the first distance and the first position.
3. An MEC deployment method according to claim 2 wherein said determining a first target location and/or a second target location for deploying an MEC based on said satellite trajectory data and said MEC deployment boundary comprises:
determining a third satellite whose satellite orbit intersects the MEC deployment boundary according to the satellite orbit data and the MEC deployment boundary;
determining the first satellite in the third satellite according to a airtime requirement of the electronic device, the first satellite corresponding to the first target location for deploying the MEC.
4. The MEC deployment method according to claim 1, wherein the determining, according to the first location, the latency requirement, and a first latency, an MEC deployment boundary that satisfies the latency requirement comprises:
determining a second distance according to the time delay requirement, the first time delay and the transmission speed of the electric signal; the first time delay comprises the forwarding time delay of a satellite, the forwarding time delay of a first gateway station and the time delay of signal transmission between the first gateway station and a first ground server; the first ground server is a ground server within a preset distance from the first position, the first ground server comprises the target ground server, and the first gateway station is a gateway station with the minimum data transmission distance from the first ground server;
determining the MEC deployment boundary according to the second distance, the first location of the electronic device and the second location of the first gateway station.
5. An MEC deployment method as claimed in claim 4 wherein said determining a first target location and/or a second target location for deploying an MEC based on said satellite trajectory data and said MEC deployment boundary comprises:
determining a target MEC deployment boundary within the MEC deployment boundaries in accordance with the satellite orbit data, the target MEC deployment boundary intersecting at least one satellite orbit in the satellite orbit data at any time within a target time period;
determining the target ground server corresponding to the target MEC deployment boundary, the target ground server corresponding to the second target location for deploying MECs.
6. The MEC deployment method of any one of claims 1-5 wherein the method further comprises:
sending an MEC deployment indication to the first satellite of the first target location and/or the target ground server of the second target location.
7. An MEC deployment device is characterized by comprising an acquisition module, a processing module and a sending module;
the acquisition module is used for receiving a communication request sent by the electronic equipment; the communication request carries a first position of the electronic equipment;
the processing module is used for determining a time delay requirement corresponding to the electronic equipment;
the processing module is further configured to determine, according to the first position, the delay requirement, and a first delay, an MEC deployment boundary that meets the delay requirement; the first time delay is a time delay corresponding to a communication node of the electronic equipment;
the acquisition module is also used for acquiring satellite orbit data;
a processing module further configured to determine a first target location and/or a second target location for deploying an MEC based on the satellite trajectory data and the MEC deployment boundary; the first target position is located in a first satellite, and the second target position is located in a target ground server corresponding to a target gateway station of a second satellite;
and the sending module is used for sending the first target position and/or the second target position to the electronic equipment.
8. The MEC deployment device of claim 7, wherein the processing module is specifically configured to:
determining a first distance according to the time delay requirement, the first time delay and the transmission speed of the electric signal; the first time delay comprises a processing time delay of the satellite;
the processing module is further configured to determine the MEC deployment boundary according to the first distance and the first position.
9. The MEC deployment apparatus of claim 8, wherein the processing module is specifically configured to:
determining a third satellite whose satellite orbit intersects the MEC deployment boundary according to the satellite orbit data and the MEC deployment boundary;
determining the first satellite in the third satellite according to a airtime requirement of the electronic device, the first satellite corresponding to the first target location for deploying the MEC.
10. The MEC deployment device of claim 7, wherein the processing module is specifically configured to:
determining a second distance according to the time delay requirement, the first time delay and the transmission speed of the electric signal; the first time delay comprises the forwarding time delay of a satellite, the forwarding time delay of a first gateway station and the time delay of signal transmission between the first gateway station and a first ground server; the first ground server is a ground server within a preset distance from the first position, the first ground server comprises the target ground server, and the first gateway station is a gateway station with the minimum data transmission distance from the first ground server;
determining the MEC deployment boundary according to the second distance, the first location of the electronic device and the second location of the first gateway station.
11. The MEC deployment apparatus according to claim 10, wherein the processing module is specifically configured to:
determining a target MEC deployment boundary within the MEC deployment boundaries in accordance with the satellite orbit data, the target MEC deployment boundary intersecting at least one satellite orbit in the satellite orbit data at any time within a target time period;
determining the target ground server corresponding to the target MEC deployment boundary, the target ground server corresponding to the second target location for deploying MECs.
12. An MEC deployment device in accordance with any one of claims 7-11 wherein,
the sending module is further configured to send an MEC deployment indication to the first satellite at the first target location and/or the target ground server at the second target location.
13. An MEC deployment apparatus comprising a processor that executes computer-executable instructions to cause the MEC deployment apparatus to perform the MEC deployment method of any one of claims 1-6 when the MEC deployment apparatus is run.
14. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the MEC deployment method of any one of claims 1-6.
15. A computer program product comprising instructions for a computer to perform the method according to any one of claims 1 to 6 when the computer program product is run on the computer.
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