CN114040320B - MEC deployment method and device and computer readable storage medium - Google Patents

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

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Publication number
CN114040320B
CN114040320B CN202111195574.5A CN202111195574A CN114040320B CN 114040320 B CN114040320 B CN 114040320B CN 202111195574 A CN202111195574 A CN 202111195574A CN 114040320 B CN114040320 B CN 114040320B
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mec
satellite
target
time delay
determining
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CN114040320A (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)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

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

Description

MEC deployment method and device and computer readable storage medium
Technical Field
Embodiments of the present application relate to the field of communications, and in particular, to a mobile edge computing technology MEC deployment method, apparatus, and computer readable storage medium.
Background
The mobile edge computing technology (mobile edge computing, MEC) has been widely used in communication networks, and can sink the computing and storing functions to network nodes, and buffer the content with high access and high heat to the position close to the user, so as to greatly save transmission resources, improve network efficiency, reduce transmission distance and reduce transmission delay.
The space-earth 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 to realize a space-earth fused communication network so as to form a complete space communication system. However, at present, there is no related MEC deployment scheme in the space-air-ground integrated communication scene, which results in low satellite network operation efficiency and affects the user experience.
Disclosure of Invention
The application provides a MEC deployment method, a MEC deployment device and a computer readable storage medium, which solve the problem that satellite network operation efficiency is low because no clearly related MEC deployment scheme exists in space-to-earth integrated communication.
In a first aspect, the present application provides a MEC deployment method, the method comprising: and receiving a communication request sent by the electronic equipment, wherein the communication request carries a first position of the electronic equipment, and determining a corresponding time delay requirement of the electronic equipment. And determining the 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 time delay corresponding to a 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 determined according to the satellite orbit data and the MEC deployment boundary. The first target position is located at the first satellite, and the second target position is located at a target ground server corresponding to a target gateway station of the second satellite. The first target location and/or the second target location is sent to the electronic device.
In one possible implementation, determining, based on the first location, the latency requirement, and the first latency, a MEC deployment boundary that meets the latency requirement includes: determining a first distance according to the time delay requirement, the first time delay and the electric signal transmission speed; the first delay includes a processing delay of the satellite. Based on the first distance and the first location, a MEC deployment boundary is determined.
In one possible implementation, determining a first target location and/or a second target location for deployment of the MEC from the satellite orbit data and the MEC deployment boundary includes: and determining a third satellite of which the satellite orbit intersects with the MEC deployment boundary according to the satellite orbit data and the MEC deployment boundary. A first satellite is determined from among the third satellites, the first satellite corresponding to a first target location for deployment of the MEC, according to a communication time requirement of the electronic device.
In one possible implementation, determining, based on the first location, the latency requirement, and the first latency, a MEC deployment boundary that meets the latency requirement includes: determining a second distance according to the time delay requirement, the first time delay and the electric signal transmission speed; the first delay comprises the forwarding delay of the satellite, the forwarding delay of the first gateway station and the 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 with the first ground server. And determining 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.
In one possible implementation, determining a first target location and/or a second target location for deployment of the MEC from the satellite orbit data and the MEC deployment boundary includes: a target MEC deployment boundary is determined from the satellite orbit data in the MEC deployment boundary that intersects at least one satellite orbit in the satellite orbit data at any time within a target time period. And determining a target ground server corresponding to the target MEC deployment boundary, wherein the target ground server corresponds to a second target position for deploying the MEC.
In one possible implementation, the method further includes: and sending MEC deployment indication to a target ground server of a first satellite of the first target position and/or a second target position.
In the above scheme, the server receives the communication request sent by the electronic device, the communication request carries the first position of the electronic device, and determines the time delay requirement corresponding to the electronic device. And the server determines the MEC deployment boundary meeting the delay requirement according to the first position, the delay requirement and the first delay. The first time delay is time delay corresponding to a communication node of the electronic equipment. The server acquires 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 at the first satellite, and the second target position is located at a target ground server corresponding to a target gateway station of the second satellite. Finally, the server sends the first target position and/or the second target position to the electronic device. Therefore, the satellite network operation efficiency 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; but also for acquiring satellite orbit data. The communication request carries a first position of the electronic equipment. The processing module is used for determining the corresponding time delay requirement of the electronic equipment; the MEC deployment boundary meeting the time delay requirement is determined according to the first position, the time delay requirement and the first time delay; and the method is also used for determining 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 time delay is time delay corresponding to a communication node of the electronic equipment, 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.
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 electric signal transmission speed; the first delay includes a processing delay of the satellite. Based on the first distance and the first location, a MEC deployment boundary is determined.
In one possible implementation, the processing module is specifically configured to: and determining a third satellite of which the satellite orbit intersects with the MEC deployment boundary according to the satellite orbit data and the MEC deployment boundary. A first satellite is determined from among the third satellites, the first satellite corresponding to a first target location for deployment of the MEC, according to a communication time requirement of the electronic device.
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 electric signal transmission speed; the first delay comprises the forwarding delay of the satellite, the forwarding delay of the first gateway station and the 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 with the first ground server. And determining 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.
In one possible implementation, the processing module is specifically configured to: a target MEC deployment boundary is determined from the satellite orbit data in the MEC deployment boundary that intersects at least one satellite orbit in the satellite orbit data at any time within a target time period. And determining a target ground server corresponding to the target MEC deployment boundary, wherein the target ground server corresponds to a second target position for deploying the MEC.
In one possible implementation, the sending module is further configured to send the MEC deployment indication to a target ground server of the first satellite of the first target location and/or the second target location.
In a third aspect, the present application provides an MEC deployment apparatus comprising a processor which, when the MEC deployment apparatus is running, executes computer-executable instructions to cause the MEC deployment apparatus to perform the MEC deployment method of the first aspect described above.
In a fourth aspect, the present application provides a computer readable storage medium comprising instructions which, when run on a computer, cause the computer to perform the MEC deployment method of the first aspect described above.
In a fifth aspect, the present application provides a computer program product comprising instruction code for performing the MEC deployment method of the first aspect as described above.
Advantageous effects of the second aspect, the third aspect, the fourth aspect, the fifth aspect, and various implementations thereof in the present application may refer to the advantageous effect analysis in the first aspect and various implementations thereof, and are not described herein in detail.
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 that are needed in the embodiments or the description of the prior art will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
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 of an MEC deployment apparatus according to an embodiment of the present application;
fig. 3 is a flow chart of an MEC deployment method according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a scenario in which an MEC deployment method provided in an embodiment of the present application is applied;
fig. 5 is a schematic view of a scenario in which another MEC deployment method provided in an embodiment of the present application is applied;
fig. 6 is a schematic structural diagram of an MEC deployment apparatus according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
For example, fig. 1 is a schematic diagram of a communication system to which the MEC deployment method provided in the present application is applied. As shown in fig. 1 (a), the communication system may include a satellite 11, a server 12, and an electronic device 13. Wherein the number of satellites 11 is one or more.
Optionally, the communication system includes at least one satellite 11, where the satellite 11 may include a low-orbit satellite, a medium-orbit satellite, a geosynchronous orbit satellite, and the like, and the specific type of the satellite 11 is not limited in this embodiment.
Alternatively, the server 12 may be a server maintained by a network operator, and may be a cloud server or a network server or the like capable of acquiring satellite orbit data and deploying MEC computing resources. The server 12 may be a server, a server cluster comprising a plurality of servers, or a cloud computing service center. In the embodiment of the present application, the device implementing the function of the server 12 may be a server, or may be a device (such as a chip system in a server) supporting the server 12 to implement the function. The embodiments of the present application do not impose any limitation on the specific type of 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 car device, a tablet computer (pad), a computer with wireless transceiver function, a personal digital assistant (personal digital assistant, PDA), a netbook, a desktop, a laptop, a handheld computer, a notebook, an artificial intelligence (artificial intelligence, AI) terminal, and the like. The embodiment of the present application does not particularly limit the specific form of the electronic device 13. In the embodiment of the present application, the device for implementing the function of the electronic device may be the electronic device, or may be a device for supporting the electronic device to implement the function (such as a chip system in the electronic device).
In some embodiments, the server 12 can establish a communication connection with the electronic device 13 and is configured with a database and computing resources, and upon receipt of a communication request sent by the electronic device 13, can determine one or more target satellites in the satellites 11 from which the MEC can be deployed, based on the location information of the electronic device 13. Then subsequently, the electronic device 13 may establish a connection directly with the target satellite in which the MEC is deployed, enabling communication.
In some scenarios, as shown in fig. 1 (b), the communication system described above may also include a gateway station 14 and a ground server 15.
Alternatively, gateway 14 may include devices, terminal devices, or power devices having functions of transmitting, receiving, antenna, tracking, communication control, etc. The gateway station 14 is, for example, a ground mechanism for performing satellite communications. The gateway station 14 may be responsible for establishing communication connections between the satellite 11 and other devices, and the particular type of gateway station 14 is not limited in this embodiment.
Alternatively, the ground server 15 may comprise, for example, a network node capable of deploying MECs, which may serve as a ground computing resource during communication of the electronic device 13. The ground server 15 may be a server, a server cluster formed by a plurality of servers, or a cloud computing service center. In the embodiment of the present application, the device for implementing the function of the ground server 15 may be a server, or may be a device (such as a chip system in a server) for supporting the ground server 15 to implement the function. The embodiment of the present application does not impose any limitation on the specific type of the ground server 15.
In some embodiments, the server 12, upon 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 for which the data transmission distance corresponding to the one or more ground servers 15 is the smallest. 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, and completes the deployment of the MEC to realize the communication of the electronic equipment 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 communicated, and a three-dimensional, multi-layer and heterogeneous broadband wireless communication network integrating space, earth and air, namely an air-space integrated network is formed through heterogeneous network fusion. The mobile edge computing technology can improve network efficiency, enables MEC to be deployed at a position as close to a user as possible, reduces transmission distance, reduces access delay of the user, and reduces return bandwidth waste. However, at present, there is no related MEC deployment scheme in the space-air-ground integrated communication scene, which results in low satellite network operation efficiency and affects the user experience.
In view of the above 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 a first position of the electronic equipment, and determines a time delay requirement corresponding to the electronic equipment. And the server determines the MEC deployment boundary meeting the delay requirement according to the first position, the delay requirement and the first delay. The first time delay is time delay corresponding to a communication node of the electronic equipment. The server acquires 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 at the first satellite, and the second target position is located at a target ground server corresponding to a target gateway station of the second satellite. Finally, the server sends the first target position and/or the second target position to the electronic device. Therefore, the satellite network operation efficiency and the user experience can be improved.
The MEC deployment method provided by the embodiment of the present application is applicable to the communication system shown in fig. 1, and the server 12 in fig. 1 belongs to the MEC deployment device. In particular implementations, the MEC deployment apparatus has components as shown in fig. 2. Fig. 2 is a schematic diagram of an MEC deployment apparatus provided in an embodiment of the present application, which may include at least one processor 202, where the processor 202 is configured to execute application program codes, so as to implement an MEC deployment method provided in an embodiment of the present application.
Processor 202 may be a central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs in accordance with aspects of the present application.
As shown in fig. 2, the MEC deployment apparatus may also 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, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disc storage, optical disc 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. The memory 203 may be stand alone and be coupled to the processor 202 via a bus 204. Memory 203 may also be integrated with processor 202.
As shown in fig. 2, the MEC deployment apparatus may further comprise a communication interface 201, wherein the communication interface 201, the processor 202, the memory 203 may be coupled to each other, for example by a bus 204. The communication interface 201 is used for information interaction with other devices, for example, supporting information interaction of the MEC deployment apparatus with other devices.
It should be noted that the apparatus structure shown in fig. 2 does not constitute a limitation of the MEC deployment apparatus, and the MEC deployment apparatus may include more or less components than shown in fig. 2, or may combine certain components, or may be arranged in different components.
The MEC deployment apparatus shown in fig. 2 is described below with reference to the communication system shown in fig. 1, and the MEC deployment method provided in the embodiment of the present application is described by fig. 3.
Fig. 3 is a flow chart of an MEC deployment method according to 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 to a location and switches the accessed network, a communication request is sent to the server. The communication request carries a first position of the electronic equipment. Therefore, after receiving the communication request sent by the electronic device, the server can determine the position of the electronic device.
S302, the server determines a time delay requirement corresponding to the electronic equipment.
In some embodiments, the latency requirement comprises, for example, a requirement of response time for each network node during communication of the electronic device, which the server may determine according to a service level agreement (service level agreement, SLA). Optionally, before the electronic device accesses the network, the network operator can obtain the SLA of the electronic device, so as to determine the corresponding delay requirement. In particular, 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, where the parameters may include a bandwidth threshold, a latency threshold, and a reliability threshold. The server determines the delay threshold therein, i.e. determines the corresponding delay requirement.
For example, after the server receives the communication request of the electronic device, the server may retrieve the SLA corresponding to the electronic device from the database storing SLAs corresponding to all the 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 network operator signs a Service Level Agreement (SLA), that is, a server of the network operator may determine a delay requirement in the SLA corresponding to the electronic device.
S303, the server determines MEC deployment boundaries meeting the time delay requirements according to the first position, the time delay requirements and the first time delay.
The first time delay is time delay corresponding to a 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 computation is 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, where the MEC is computed by a ground server in the vicinity of the gateway station during satellite communications by the electronic device.
In some embodiments, the server determines the first distance based on the latency requirement, the first latency, and the electrical signal transmission speed. Wherein the first delay comprises a processing delay of the satellite. The first distance is used to represent the furthest distance from which MEC resources may be deployed. The server then determines a MEC deployment boundary based on the first distance and the first location. Illustratively, corresponding to the communication scenario illustrated in fig. 1 (a) above, the electronic device may determine the MEC deployment boundary based on the first distance and the first location.
For example, assuming that 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 the first distance as s (D-D 1 ). As shown in fig. 4, after determining that the first position 401 and the first distance of the electronic device are the first positions 401, the server determines the corresponding sphere by using the first distance as the radius and using the first position 401 as the center of a circle, where the sphere of the sphere is the corresponding sphere of the electronic deviceMEC deployment boundaries. Wherein D, D, s are greater than 0.
It will be appreciated that the electronics are located at the surface and that the MEC deployment boundary should be a partial sphere of the top surface half of the sphere.
In the embodiment of the present application, it is assumed that the processing delays of all satellites are the same, and D1 is used. It can be understood that in an actual application scenario, the processing delays of different satellites may be different, so that the server may determine a plurality of spheres according to the different processing delays through the method, which is not repeated in this embodiment of the present application.
In other embodiments, the server determines the second distance based on the latency requirement, the first latency, and the electrical signal transmission rate. The first delay comprises the forwarding delay of the satellite, the forwarding delay of the first gateway station and the 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 with the first ground server. The server then determines the MEC deployment boundary based on the second distance, the first location of the electronic device, and the second location of the first gateway station. Illustratively, corresponding to the communication scenario shown in fig. 1 (b) above, the electronic device may determine the MEC deployment boundary based on the second distance, the location of the electronic device, and the location of the gateway station.
For example, assuming that the delay requirement is D, the satellite has a retransmission delay D2, the first gateway station has a retransmission time D3, and the delay of signal transmission between the first gateway station and the first ground server is D4. Then the server determines the second distance as s (D-D 2 -D 3 -D 4 ). As shown in fig. 5, after determining that the first position 501 and the second distance of the electronic device are the first position 501, the first gateway station 502 is the other focus, and the second distance is the semi-major axis, the server may obtain a corresponding ellipsoid, where the sphere of the ellipsoid is the MEC boundary corresponding to the electronic device at this time. Wherein D2, D3, D4 are greater than 0.
It can be understood that the number of the first ground servers within the preset distance from the first location of the electronic device is one or more, and then the number of the corresponding first gateway stations is one or more, and thus the number of ellipsoids determined by the final server is one or more.
In addition, the electronics are located on the ground, and the MEC deployment boundary should be a partial ellipsoid of the upper ground half of the ellipsoid.
In one possible implementation, the first ground server may be a network node within a range of circles determined with an empirical value as a radius, centered around the first location of the electronic device. The network node serving as the 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 experience value, the server may correspondingly expand the experience value or determine the network node through other methods, 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 the satellite signal and may transmit the signal to the satellite, and the first gateway station is the gateway station that has the smallest data transmission distance between the plurality of gateway stations around the first ground server and the first ground server.
It should be noted that, some data transmission in terrestrial communication requires cable support, so the above-mentioned data transmission distance does not refer to a point-to-point linear distance in a physical sense.
S304, the server acquires satellite orbit data.
In some embodiments, the satellite orbit data may include satellite orbit information, satellite operating periods, satellite operating times, satellite operating positions, and the like. The server may obtain satellites and corresponding orbit data supporting network operators to provide user network services through the satellite system of the network operators.
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 at the first satellite, and the second target position is located at a target ground server corresponding to a target gateway station of the second satellite. That is, the MEC may be deployed on a satellite with computing resources, or on a ground server. Or on both satellites with computing resources and on ground servers.
In some embodiments, corresponding to the scenario illustrated in fig. 4 above, the server determines a third satellite whose satellite orbit intersects the MEC deployment boundary from the satellite orbit data and the MEC deployment boundary. The server then determines a first satellite among the third satellites, the first satellite corresponding to a first target location for deployment of the MEC, based on the communication time requirements of the electronic device.
As shown in fig. 4, the server determines the satellite orbits intersecting the sphere according to the satellite orbit data, and determines the first time when the satellites on each intersecting satellite orbit enter the sphere and the second time when the satellites leave the sphere, so as to determine that the satellites are located in the sphere in the communication time of the electronic device, thereby determining that a plurality of corresponding satellites are used for ensuring that the electronic device can support the communication of the electronic device by the satellites in the communication time. For example, where there are corresponding satellite supported electronic device communications for different time periods within 24 hours, the location of these satellites may be determined as the first target location for deployment of the MEC.
Alternatively, assuming that the server determines that there are multiple satellites within the sphere for a certain period of time, one of the satellites may be selected to be set as the first satellite for deployment of the MEC.
In other embodiments, corresponding to the scenario illustrated in fig. 5 above, the server determines a target MEC deployment boundary from the satellite orbit data among the MEC deployment boundaries, the target MEC deployment boundary intersecting at least one satellite orbit in the satellite orbit data at any time within the target time period. Then, 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 one possible implementation, the electronic device corresponds to a plurality of first ground servers corresponding to a plurality of first gateway stations and thus to a plurality of ellipsoids, i.e. to a plurality of MEC deployment boundaries. The server determines satellite orbits intersected with all ellipsoids according to satellite orbit data, determines first time when satellites on all intersected satellite orbits enter all ellipsoids and second time when the satellites leave the spheres, further determines that the ellipsoids running with the satellites exist in the ellipsoids at any time within a 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 corresponding to the target MEC deployment boundary (i.e., the ground server for the focal position of the ellipsoid). Alternatively, the target period of time is, for example, 24 hours.
It should be noted that, the multiple ellipsoids at least include one ellipsoid with satellite running in the ellipsoids at any time within the target time period, when there are multiple ellipsoids which can be used as the deployment boundary of the target MEC, the ellipsoids of a certain ellipsoid can be determined as the deployment boundary of the target MEC according to different requirements.
In some scenarios, when the server does not find an ellipsoid in which satellite operation exists in the ellipsoid at any time within the target time period, it may determine an ellipsoid in which the ellipsoid in which satellite operation time is longest exists among the plurality of ellipsoids as the target MEC deployment boundary, that is, narrow the range of the target time period. Thereafter, during periods when there is no satellite in operation, the server may deploy the MEC on the satellite, as in the scenario of fig. 4 described above, and the server may determine the first satellite to have computing resources. And then 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 may determine the period of time without satellite operation as the target period of time by failing to determine that there is always satellite in the ball at any time by the method applied in the scenario shown in fig. 4 above. Then, by the method applied in the scene 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. Therefore, MEC is deployed on the first satellite and the target ground server, and communication experience of the user is guaranteed.
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 the electronic device may subsequently choose to communicate via MEC resources at the first target location and/or the second target 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 indication and a first target location of the first satellite to the satellite control system, thereby completing MEC deployment of the first satellite by the satellite control system. The satellite control system may be a cloud server.
In the above scheme, the server receives the communication request sent by the electronic device, the communication request carries the first position of the electronic device, and determines the time delay requirement corresponding to the electronic device. And the server determines the MEC deployment boundary meeting the delay requirement according to the first position, the delay requirement and the first delay. The first time delay is time delay corresponding to a communication node of the electronic equipment. The server acquires 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 at the first satellite, and the second target position is located at a target ground server corresponding to a target gateway station of the second satellite. Finally, the server sends the first target position and/or the second target position to the electronic device. Therefore, the satellite network operation efficiency and the user experience can be improved.
According to the method embodiment, the MEC deployment device may be divided into functional modules 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 modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.
The method provided by the embodiments of the present application is described in detail above in connection with fig. 3-5. The MEC deployment apparatus provided in the embodiment of the present application is described in detail below with reference to fig. 6. It should be understood that the descriptions of the apparatus embodiments and the descriptions of the method embodiments correspond to each other, and thus, descriptions of details not described may be referred to the above method embodiments, which are not repeated herein for brevity.
The embodiment of the application provides an MEC deployment device, which can be the server or a chip or a functional module of the server. For example, taking the MEC deployment apparatus as an example of the server in the above method embodiment, the MEC deployment apparatus may implement steps or procedures performed corresponding to 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 acquisition module 601, a processing module 602, and a transmission module 603.
An obtaining module 601, configured to receive a communication request sent by an electronic device; but also for acquiring satellite orbit data. For example, referring to fig. 3, the acquisition module 601 is configured to perform S301 and S304. A processing module 602, configured to determine a latency requirement corresponding to the electronic device; the MEC deployment boundary meeting the time delay requirement is determined according to the first position, the time delay requirement and the first time delay; and the method is also used for determining 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. 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 transmission module 603 is configured to perform S306.
Optionally, the processing module 602 is further configured to determine the first distance according to the time delay requirement, the first time delay, and the electrical signal transmission speed; and determining the MEC deployment boundary according to the first distance and the first position.
Optionally, the processing module 602 is further configured to determine, according to the satellite orbit data and the MEC deployment boundary, a third satellite where the satellite orbit intersects the MEC deployment boundary; and is further configured to determine the first satellite from among the third satellites based on the communication time requirements of the electronic device.
Optionally, the processing module 602 is further configured to determine the second distance according to the time delay requirement, the first time delay, and the electrical signal transmission speed; and determining the 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 from 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 of the first target location and/or the target ground server of the second target location.
The acquiring module 601 and the transmitting module 603 may also be implemented as a transceiver module in combination, may be implemented by a transceiver or a transceiver related circuit component, and may be a transceiver or a transceiver unit.
Another embodiment of the present application also provides a computer readable storage medium having instructions stored therein that, when executed on a MEC deployment apparatus, perform the steps of a server in the MEC deployment method of 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, the processor executing the computer-executable instructions causing the MEC deployment apparatus to perform the steps of the server in the MEC deployment method of the embodiment shown in fig. 3.
All relevant contents of each step related to the above method embodiment may be cited to the functional descriptions of the corresponding functional modules, and their effects are not described herein.
It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative modules, units, 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 solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative, and for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, indirect coupling or communication connection of devices or units, electrical, mechanical, or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in 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 may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory), a magnetic disk or an optical disk, etc., which can store program codes.
The foregoing is merely 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 think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to 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 (6)

1. A mobile edge computing technology, MEC, deployment method, applied to a server, the method comprising:
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 the first time delay; the first time delay is time delay corresponding to a communication node of the electronic equipment;
the determining, according to the first location, the latency requirement, and the first latency, the MEC deployment boundary that meets the latency requirement includes: determining a first distance according to the time delay requirement, the first time delay and the electric signal transmission speed, wherein the first time delay comprises processing time delay of a satellite, the first distance is used for representing the farthest distance of a deployable MEC resource, the first position is used as a circle center, the first distance is used as a radius, a corresponding sphere is determined, and the spherical surface of the sphere is the MEC deployment boundary corresponding to the electronic equipment;
Or determining a second distance according to the time delay requirement, the first time delay and the electric signal transmission speed, wherein the first time delay comprises a forwarding time delay of the satellite, a forwarding time delay of a first gateway station and a 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, the first gateway station is a gateway station with the minimum data transmission distance with the first ground server, the first position is taken as one focus, the first gateway station is taken as the other focus, the second distance is taken as a semi-long axis, a corresponding ellipsoid is obtained, and the spherical surface of the ellipsoid is taken as the MEC deployment boundary corresponding to the electronic equipment;
acquiring satellite orbit data;
determining a first target position and/or a second target position for deploying MEC according to the satellite orbit data and the MEC deployment boundary; the first target position is located at a first satellite, and the second target position is located at a target ground server corresponding to a target gateway station of a second satellite;
The determining 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 comprises: determining a third satellite with a satellite orbit intersecting the MEC deployment boundary according to the satellite orbit data and the MEC deployment boundary, and determining the first satellite in the third satellite according to the communication time requirement of the electronic equipment, wherein the first satellite corresponds to the first target position for deploying MEC;
and/or the electronic device corresponds to a plurality of first ground servers, and the plurality of first ground servers correspond to a plurality of first gateway stations, namely to a plurality of ellipsoids, namely to a plurality of MEC deployment boundaries; determining satellite orbits intersected with each ellipsoid according to the satellite orbit data, determining first time when satellites on each intersected satellite orbit enter each ellipsoid and second time when the satellites leave each ellipsoid, determining an ellipsoid of the ellipsoid with the satellite operation at any moment in a target time period as a target MEC deployment boundary, and determining the target ground server of the second target position corresponding to the target MEC deployment boundary;
And sending the first target position and/or the second target position to the electronic equipment.
2. The MEC deployment method of claim 1, wherein the method further comprises:
transmitting an MEC deployment indication to the target ground server of the first satellite of the first target location and/or the second target location.
3. The 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 the corresponding time delay requirement of the electronic equipment;
the processing module is further configured to determine, according to the first location, the delay requirement, and a first delay, an MEC deployment boundary that meets the delay requirement; the first time delay is time delay corresponding to a communication node of the electronic equipment;
the determining, according to the first location, the latency requirement, and the first latency, the MEC deployment boundary that meets the latency requirement includes: determining a first distance according to the time delay requirement, the first time delay and the electric signal transmission speed, wherein the first time delay comprises processing time delay of a satellite, the first distance is used for representing the farthest distance of a deployable MEC resource, the first position is used as a circle center, the first distance is used as a radius, a corresponding sphere is determined, and the spherical surface of the sphere is the MEC deployment boundary corresponding to the electronic equipment;
Or determining a second distance according to the time delay requirement, the first time delay and the electric signal transmission speed, wherein the first time delay comprises a satellite forwarding time delay, a first gateway station forwarding time delay and a first ground server signal transmission time delay, 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, the first gateway station is a gateway station with the minimum data transmission distance with the first ground server, the first position is taken as one focus, the first gateway station is taken as the other focus, the second distance is taken as a semi-long axis, and a corresponding ellipsoid is obtained, and the spherical surface of the ellipsoid is the MEC deployment boundary corresponding to the electronic equipment;
the acquisition module is also used for acquiring satellite orbit data;
the processing module is further used for determining a first target position and/or a second target position for deploying MEC according to the satellite orbit data and the MEC deployment boundary; the first target position is located at a first satellite, and the second target position is located at a target ground server corresponding to a target gateway station of a second satellite;
The determining 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 comprises: determining a third satellite with a satellite orbit intersecting the MEC deployment boundary according to the satellite orbit data and the MEC deployment boundary, and determining the first satellite in the third satellite according to the communication time requirement of the electronic equipment, wherein the first satellite corresponds to the first target position for deploying MEC;
and/or the electronic device corresponds to a plurality of first ground servers, and the plurality of first ground servers correspond to a plurality of first gateway stations, namely to a plurality of ellipsoids, namely to a plurality of MEC deployment boundaries; determining satellite orbits intersected with each ellipsoid according to the satellite orbit data, determining first time when satellites on each intersected satellite orbit enter each ellipsoid and second time when the satellites leave each ellipsoid, determining an ellipsoid of the ellipsoid with the satellite operation at any moment in a target time period as a target MEC deployment boundary, and determining the target ground server of the second target position corresponding to the target MEC deployment boundary;
The sending module is used for sending the first target position and/or the second target position to the electronic equipment.
4. The MEC deployment apparatus according to claim 3, wherein,
the sending module is further configured to send an MEC deployment indication to the target ground server of the first satellite of the first target location and/or the second target location.
5. A MEC deployment apparatus comprising a processor which, when the MEC deployment apparatus is running, executes computer-executable instructions to cause the MEC deployment apparatus to perform the MEC deployment method of claim 1 or 2.
6. A computer readable storage medium comprising instructions which, when run on a computer, cause the computer to perform the MEC deployment method of claim 1 or 2.
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