CN113055820B - Data storage method, device, system and storage medium - Google Patents
Data storage method, device, system and storage medium Download PDFInfo
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- CN113055820B CN113055820B CN201911383555.8A CN201911383555A CN113055820B CN 113055820 B CN113055820 B CN 113055820B CN 201911383555 A CN201911383555 A CN 201911383555A CN 113055820 B CN113055820 B CN 113055820B
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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
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
- H04L67/5682—Policies or rules for updating, deleting or replacing the stored data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
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- 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
Abstract
The invention discloses a data storage method, a data storage device, a data storage system and a data storage medium. The method comprises the steps of receiving service information sent by a first base station; the service information comprises position information for acquiring the service information and service type information of the service information; determining whether the service information is information for a service related to a location according to the service type information; and when the service information is information for the service related to the position, sending the service information to the second MEC server, so that when the second MEC server determines that the position information in the service information is located in a first preset range of the second base station, the second MEC server stores the service information, and the hit rate of the user for acquiring data is improved.
Description
Technical Field
The present invention belongs to the field of wireless network technology, and in particular, to a data storage method, apparatus, system and storage medium.
Background
With the rapid increase in traffic usage and the increase in user experience demands, there is a need to improve computing processing power and data storage capacity at the edge of wireless networks, i.e., edge computing.
Edge Computing is applied in Mobile communication networks, i.e. Mobile Edge Computing (MEC). The MEC means that data to be acquired by a user are stored in an MEC server. The MEC server is deployed near the base station, and stores data required by the user in the MEC server, so that the utilization of network resources on the core network side is saved. However, the memory space of the MEC server is limited, and there is a problem that data required by the user cannot be stored, that is, the hit probability of the data required by the user in the MEC server is low due to the data caching mode at the MEC server side at present.
Disclosure of Invention
The embodiment of the invention provides a data storage method, a device, a system and a storage medium, which can solve the problem that the hit rate of user-acquired data is low in the existing data caching mode of an MEC server side.
In a first aspect, a data storage method is provided, where the method is applied to a first MEC server, and the method includes:
receiving service information sent by a first base station; the service information comprises position information for acquiring the service information and service type information of the service information;
determining whether the service information is information for a service related to a location according to the service type information;
and when the service information is information for a service related to the position, sending the service information to a second MEC server, so that when the second MEC server determines that the position information in the service information is located in a first preset range of the second base station, the second MEC server stores the service information.
In one possible implementation, the method further includes:
and sending the service information to the centralized database for storing the service information by the centralized database.
In one possible implementation, the method further includes:
and when the service information is not information for the location-related service, sending the service information to a centralized database for the centralized database to store the service information.
In a second aspect, a data storage method is provided, where the method is applied to a second MEC server, and the method includes:
receiving service information sent by a first MEC server; the service information comprises position information for acquiring the service information and service type information of the service information; wherein the service type information is information characterizing that the service information is for a service related to the location;
determining whether the position information is located in a first preset range of the second base station according to the position information in the received service information;
and when the position information is positioned in a first preset range of the second base station, storing the service information.
In one possible implementation, the method further includes:
and deleting the service information when the position information is not located in the first preset range of the second base station.
In one possible implementation, the method further includes:
sending a service request to a centralized database; the service request carries the service type information, the identifier of the second MEC server and the first preset range, so that the centralized database determines the service information according to the service type information and the first preset range and sends the service information to the second MEC server corresponding to the identifier of the second MEC server;
storing the service information sent by the centralized database;
the service information comprises service type information and position information for acquiring the service information.
In a third aspect, there is provided a data storage apparatus, which is applied to a first MEC server, the apparatus comprising:
the receiving module is used for receiving the service information sent by the first base station; the service information comprises position information for acquiring the service information and service type information of the service information;
a determining module for determining whether the service information is information for a service related to a location according to the service type information;
and the sending module is used for sending the service information to the second MEC server when the service information is information used for the service related to the position, so that the second MEC server stores the service information when the second MEC server determines that the position information in the service information is located in a first preset range of the second base station.
In a possible implementation manner, the sending module is further configured to send the service information to the centralized database, so that the centralized database stores the service information.
In a possible implementation manner, the sending module is further configured to:
and when the service information is not information for the location-related service, sending the service information to a centralized database for the centralized database to store the service information.
In a fourth aspect, there is provided a data storage apparatus, the apparatus being applied to a second MEC server; the device comprises:
the receiving module is used for receiving the service information sent by the first MEC server; the service information comprises position information for acquiring the service information and service type information of the service information; wherein the service type information is information characterizing that the service information is for a service related to the location;
the determining module is used for determining whether the position information is located in a first preset range of the second base station according to the position information in the received service information;
and the storage module is used for storing the service information when the position information is positioned in a first preset range of the second base station.
In a possible embodiment, the apparatus further comprises a deletion module;
and the deleting module is used for deleting the service information when the position information is not located in the first preset range of the second base station.
In one possible embodiment, the apparatus further comprises:
the sending module is used for sending a service request to the centralized database; the service request carries the service type information, the identifier of the second MEC server and the first preset range, so that the centralized database determines the service information according to the service type information and the first preset range and sends the service information to the second MEC server corresponding to the identifier of the second MEC server;
the storage module is also used for storing the service information sent by the centralized database;
the service information comprises service type information and position information for acquiring the service information.
In a fifth aspect, a data storage system is provided, which includes a first base station and a second base station, and a first edge-computing MEC server disposed within a second preset range of the first base station and a second MEC server disposed within a third preset range of the second base station;
the first MEC server is used for receiving the service information sent by the first base station, wherein the service information comprises position information of the acquired service information and service type information of the service information; and determining whether the service information is information for a service related to the location according to the service type information; when the service information is information for a service related to a location, transmitting the service information to the second MEC server; the first MEC server is also used for sending service information to the centralized database;
the second MEC server is used for determining whether the position information is positioned in a first preset range of the second base station according to the position information in the received service information; when the position information is located in a first preset range of the second base station, storing the service information;
and the centralized database is used for storing the service information sent by the first MEC server.
A sixth aspect provides a computer storage medium having stored thereon computer program instructions which, when executed by a processor, implement a method as in the first aspect or any of the possible implementations of the first aspect, or implement a method as in the second aspect or any of the possible implementations of the second aspect.
Based on the provided data storage method, device, system and storage medium, the service information sent by the first base station is received; the service information comprises position information for acquiring the service information and service type information of the service information; determining whether the service information is information for a service related to a location according to the service type information; and when the service information is information for the service related to the position, sending the service information to the second MEC server, so that when the second MEC server determines that the position information in the service information is located in a first preset range of the second base station, the second MEC server stores the service information, and the hit rate of the user for acquiring data is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an edge cache system networking according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a data storage system according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a data storage method according to an embodiment of the present invention;
FIG. 4 is a flow chart illustrating another data storage method according to an embodiment of the present invention;
FIG. 5 is a flow chart illustrating a further data storage method according to an embodiment of the present invention;
FIG. 6 is a flow chart illustrating a further data storage method according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a data storage device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another data storage device according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
At present, a plurality of novel business applications such as augmented reality/virtual reality, 4K/8K resolution high-definition video, internet of things, industrial internet, internet of vehicles and the like are rapidly emerging, and increasingly high requirements are provided for the transmission capacity, data distribution processing capacity and the like of a network. In the face of rapid traffic growth and increasing user experience demands, communication networks are bound to bear huge pressure, and therefore, the networks must be adjusted in architecture to meet service demands such as ultra-large connections, ultra-low latency, and ultra-large bandwidth. To address the above challenges, it is proposed to provide computing processing and data storage capability at the network edge, i.e. edge computing, to achieve the goal of providing users with high quality services at the network edge. The basic idea of edge computing is to migrate a cloud computing platform (including computing, storage and network resources) to the edge of a network, try to realize deep fusion among a traditional mobile communication network, the internet of things and the like, reduce end-to-end time delay of service delivery, explore the internal capacity of the network, and improve user experience, thereby bringing a new revolution to the operation mode of a telecom operator, and establishing a novel industrial chain and a network ecosphere.
In order to help the conceptual understanding of the MEC, the overall system architecture of the MEC shown in fig. 1 is used as a contrast, and the MEC is primarily introduced in consideration of an application scenario of a simple user for acquiring content.
In a conventional manner without using MEC, when each User Equipment (UE) initiates a content service request, it first needs to access through a base station (eNodeB), then connects with a target content through a Core Network (CN), and then returns layer by layer, finally completing the interaction between the UE and the target content. If other terminals under the same base station initiate the same content request, the connection process and the call flow shown in fig. 1 need to be repeated. On the one hand, repeated connection and invocation wastes network resources; on the other hand, long distance transmission also increases the corresponding delay. By introducing the MEC solution, the MEC server is deployed at the base station side close to the UE, so that the content can be cached on the MEC server, and a user can directly acquire the content from the MEC server without repeatedly acquiring the content through a core network. From the network perspective, the introduction of the MEC can not only avoid network congestion, but also save network resources on the core network side; from the user's perspective, this means a reduction in latency and an improvement in quality of service experience.
Based on the principle of the MEC, the reduction of the user service delay mainly depends on that the data required by the user is obtained from the MEC server at the base station side, but is limited by the limitation of the storage space, and the MEC server cannot store all the data, so that the hit probability (hereinafter referred to as data hit rate) of the data required by the user in the MEC server is improved as much as possible, and the user service delay can be reduced as much as possible. The data hit rate is improved, a good caching strategy is needed, most research works are to revise some caching strategies in the traditional wired network according to the characteristics of the mobile network, and in addition, some new caching schemes are also provided, such as caching strategies based on user preference, reinforcement learning or multi-node cooperation.
For the data caching strategies in the MEC server, which are mostly based on the content of the data and the user preference, although the data hit rate can be improved to some extent, the strategies are more suitable for the content type data.
In the fields of traffic and the like, data and position information have a great relationship, and many data are only required to be used in a certain range, for example, when a vehicle passes through a certain position, nearby traffic signal light information and nearby road condition information are required with a high probability, and when data stored in an MEC server corresponding to a base station through which the vehicle passes are nearby position data, the vehicle needs the data with a high probability, so that the data cached in the MEC server has a high position association degree with the data.
For the above scenario, in the cache policy in the prior art, since it is not determined according to the service type whether the location information of the data needs to be considered when caching the data related to the service, the cache policy of the MEC server for the service with high association degree with the location information is inefficient, and the hit rate of the user for acquiring the data is low.
Therefore, the embodiment of the invention provides a data storage method, a data storage device, a data storage system and a data storage medium, which can improve the hit rate of data acquired by a user.
For convenience of understanding the embodiments of the present invention, a data storage system in the embodiments of the present invention will be described in detail first.
Fig. 2 is a schematic structural diagram of a data storage system according to an embodiment of the present invention.
As shown in fig. 2, a data storage system provided in an embodiment of the present invention may include: a first base station 201, a second base station 202, a first MEC server 203, a second MEC server 204, and a centralized database 205.
The first MEC server 203 is configured to receive service information sent by the first base station 201, where the service information includes location information of the acquired service information and service type information of the service information; and determining whether the service information is information for a service related to a location according to the service type information; when the service information is information for a service related to a location, transmitting the service information to the second MEC server 204; the first MEC server 203 is further configured to send service information to the centralized database 205;
the second MEC server 204 is configured to determine, according to the location information in the received service information, whether the location information is located within a first preset range of the second base station 202; when the position information is within a first preset range of the second base station 202, storing the service information;
and the centralized database 205 is used for storing the service information sent by the first MEC server 203.
In an embodiment of the present invention, the service information is information corresponding to service data to be acquired by a user. The service information includes location information for acquiring the service information, that is, a location where service data is collected. The service information also comprises service type information, and the service type information is used for indicating the scene to which the service data in the service information is applied. For example, in an embodiment corresponding to a traffic application, the actual data may be traffic light information, real-time traffic information, and the like, and the position of the service data in the service information may be the position of a traffic light or the position corresponding to a real-time traffic condition. The service type information of the service information is that the service data is applied to traffic type services or video services.
In order to facilitate understanding of the embodiments of the present invention, each device in the data storage system provided by the embodiments of the present invention will be described in detail below.
The first base station 201 and the second base station 202 are both referred to as public mobile communication base stations, and in a certain radio coverage area, they are radio transceiver nodes for information transmission with mobile phone terminals through a mobile communication switching center, and the first base station 201 and the second base station 202 in this embodiment of the present invention are both generic terms of a signal baseband processing part, a signal radio frequency processing part and an antenna.
The MEC server in the embodiment of the invention is deployed at the base station side close to the terminal, can cache the content on the MEC server, enables a user to directly acquire the content from the MEC server without repeatedly acquiring the content through a core network, and the MEC server comprises data cache and computing capacity and can provide data content and computing processing service for the terminal. Wherein, the first MEC server 203 is arranged in a preset range of the first base station 201; the second MEC server 204 is disposed within a preset range of the second base station 202. The preset range of the first base station 201 and the preset range of the second base station 202 may be the same or different.
The centralized database 205 is a centralized platform of service Data, and is equivalent to a server in a Public Data Network (PDN) in a conventional Network architecture, where service information is centrally stored, and when a terminal acquires Data, the terminal accesses the PDN through a base station, connects target service information stored in the centralized database 205 through a core Network, and returns the target service information layer by layer, thereby finally completing interaction between the terminal and the target service information.
Optionally, in this embodiment of the present invention, the data storage system may further include an information acquisition device 206, a terminal 207, and a core network 208.
The terminal 206 refers to a device used by a user to access a network, the most common terminal is a common mobile phone terminal held by the user, and with the development of applications, many terminals of non-mobile phone types are increasing, for example, in the traffic field, a vehicle-mounted terminal is also a common terminal.
The information collecting device 207 is a device for collecting service information, and actually belongs to a terminal, and after collecting service information, the service information is transmitted back to a database through a network, and in the application of the traffic field, the information collecting device can be used for collecting traffic light information, traffic real-time road condition information and the like, and the service information can also contain service types suitable for the service information and position information for information collection.
Taking the core network of the 4th generation mobile communication technology (4G) network as an example, the core network 208 includes a Mobility Management Entity (MME) responsible for a signaling processing portion, a Serving GateWay (S-GW) for routing and forwarding packets, and a PDN GateWay (P-GW) connected to a PDN, and the base station is connected to the PDN network through the core network, that is, connected to the internet. However, the embodiment of the present invention is not limited to the 4G network, and in a network such as the 5th generation mobile communication technology (5G), the network element may be a corresponding network element in a wireless communication system.
The data storage method provided by the embodiment of the present invention is described in detail below based on the data storage system provided by the embodiment of the present invention.
Fig. 3 is a schematic flowchart of a data storage method according to an embodiment of the present invention.
As shown in fig. 3, a data storage method provided in an embodiment of the present invention includes:
s301: the information acquisition equipment acquires service information.
The information acquisition equipment can periodically acquire the service information and can also acquire the service information in real time. For example, the state information of the traffic signal lamp can be collected according to the real-time change situation of the traffic signal lamp. The collected service information comprises service data, the position of service information collection and the service type information of the service information. And when new service information is acquired or updated, triggering information to be reported.
S302: and the information acquisition equipment sends the service information to the first base station.
The information acquisition device can be used as a terminal to access the first base station. And after receiving the service information, the first base station stores the service information in a first MEC server.
S303: the first MEC server determines whether the service information is information for a location-related service according to service type information in the service information. If not, executing S304; if so, S305 and S309 are performed.
The first MEC server needs to determine whether the service to which the service information is applied is a location-related service. For example, traffic service, such as status information of traffic signals, real-time traffic information, location-related service, and video service, such as a short video, is independent of location.
S304: the first MEC server sends the service information to the centralized database.
When the service information is not information for a location-related service, the first MEC server transmits the service information to a centralized database, which stores the service information. At this time, the service information stored in the centralized database can be used as the service information on the platform side. The platform-side service information may be used in various services. Such as the service information is video type information, voice type information, etc.
S305: the first MEC server sends the service information to the second MEC server. S306 is performed.
In an embodiment of the present invention, the second MEC server may store the service information after receiving the service information, or may discard the service information. Next, it is determined whether the second MEC server needs to store the service information through S306.
S306: the second MEC server determines whether the location information in the service information is within a second preset range of the second base station. If yes, go to S307; if not, go to step S308.
The service information carries the position information for acquiring the service information. Wherein the location information is a location where the service information is acquired. The service types corresponding to the services applied by different service information have different requirements for the position range of the acquired service information. For example, a service applied to a traffic service may require service information within 3 kilometers; application to industrial internets may require business information within 100 meters. Therefore, the second MEC server may set different preset ranges for different types of services. And when the position information in the service information is within the preset range of the second station, the second MEC server stores the service information.
S307: the second MEC server stores the service information.
The second MEC server stores the service information for the terminal to obtain the service information. For example, if the vehicle-mounted terminal attached to the second base station needs to acquire the real-time status of a traffic light, and the location of the traffic light is within a second preset range of the second base station, the second MEC server stores the real-time status information of the traffic light. The terminal can avoid the time delay of information transmission increased by long-distance transmission of the service information, the acquisition efficiency of the service information is improved, and the hit rate of the edge cache data is improved. Here, the second MEC server may be any one of MEC servers adjacent to the first MEC server.
S308: the second MEC server discards the traffic information.
S309: the first MEC server sends the service information to the centralized database.
When the service information is information for a service related to a location, the first MEC server transmits the service information to a centralized database, which stores the service information. At this time, the service information stored in the centralized database can be used as the service information on the platform side. The platform-side service information may be used in various services. Such as the service information is video type information, voice type information, etc.
It should be noted that, in the embodiment of the present invention, S305 and S309 do not have a sequential execution order.
The data storage system provided by the embodiment of the invention is used for receiving the service information sent by the first base station through the first MEC server, wherein the service information comprises position information for acquiring the service information and service type information of the service information; and determining whether the service information is information for a service related to a location according to the service type information; transmitting the service information to the second MEC server when the service information is information for a service related to the location; the first MEC server is also used for sending service information to the centralized database; the second MEC server is used for determining whether the position information is positioned in a first preset range of the second base station according to the position information in the received service information; when the position information is located in a first preset range of the second base station, storing the service information; and the centralized database is used for storing the service information sent by the first MEC server, so that the hit rate of the user for acquiring the data is improved.
Optionally, in the embodiment of the present invention, after the centralized database stores the service information, when the MEC server initializes or needs to update data, the service information needs to be acquired from the centralized database. As shown in fig. 4, the MEC server obtaining the service information from the centralized database includes the following steps:
s401: a business request sent by the MEC server to the centralized database; the service request carries service type information, an identifier of the MEC server and a preset range.
When the MEC server needs to update data or initialize data, a service request is sent to the centralized database. The service request carries service type information, an identifier of the MEC server and a preset range. The preset range is the preset range of the base station corresponding to the MEC server, and the MEC server only stores the service information of the base station corresponding to the MEC server in the preset range. Wherein the MEC server is arranged within a certain range of the base station.
S402: and the centralized database determines the service information according to the service type information and the preset range.
In one embodiment of the present invention, the centralized database establishes data demand information for the MEC server according to the service type information and the preset range. And each item of service information in the data requirement information is associated with and records the MEC server identifier, the service type information and the preset range. Each MEC server may have records of information of multiple service types, and the preset range of each service type may be different.
S403: and the centralized database sends the service information to the MEC server according to the identification of the MEC server.
And the centralized database extracts the corresponding service type information and the data in the preset range for the MEC server according to the data demand information and the identification of the MEC server, and initially sends or updates the data to the MEC server.
S404: the MEC server stores the service information.
The embodiment of the invention provides data information near the position for the MEC server through the centralized database according to the service type and the data position preset range corresponding to the data required by the MEC server corresponding to the base station.
Fig. 5 is a schematic flowchart of a data storage method according to an embodiment of the present invention.
As shown in fig. 5, a data storage method provided by an embodiment of the present invention is applied to a first MEC server, and the method may include:
s501: receiving service information sent by a first base station; the service information includes location information for acquiring the service information and service type information for the service information.
The service information is information corresponding to service data to be acquired by a user. The service information includes location information for acquiring the service information, that is, a location where service data is collected. The service information also comprises service type information, and the service type information is used for standardizing the scene to which the service data in the service information is applied. For example, in an embodiment corresponding to a traffic application, the actual data may be traffic light information, real-time road condition information, and the like, and the position of the service data in the service information may be the position of a traffic light or the position corresponding to a real-time road condition. The service type information of the service information is that the service data is applied to a traffic service or a video service.
S502: it is determined whether the service information is information for a location-related service according to the service type information.
The first MEC server needs to determine whether the service to which the service information is applied is a location-related service. For example, traffic service, such as status information of traffic signals, real-time traffic status information, location-related service, and video service, such as a short video, is location-independent.
S503: and when the service information is information for a service related to the location, sending the service information to the second MEC server, so that when the second MEC server determines that the location information in the service information is located within a first preset range of the second base station, the second MEC server stores the service information.
The service information carries the position information for acquiring the service information. Wherein, the position information is the position for acquiring the service information. The service types corresponding to the services applied by different service information have different requirements for the position range of the acquired service information. For example, a traffic service may require service information within 3 km; application to industrial internets may require business information within 100 meters. Therefore, the second MEC server may set different preset ranges for different types of services.
After the first MEC server sends the service information to the second MEC server, the second MEC server needs to determine whether to store the service information according to the location information. And when the position information in the service information is within the preset range of the second base station, the second MEC server stores the service information. The second MEC server stores the service information for the terminal to obtain the service information. For example, if the vehicle-mounted terminal attached to the second base station needs to acquire the real-time status of a traffic light, and the location of the traffic light is within a second preset range of the second base station, the second MEC server stores the real-time status information of the traffic light. The terminal can avoid long-distance transmission of the service information, delay of information transmission is increased, the acquisition efficiency of the service information is improved, and the hit rate of the edge cache data is improved.
When the service information is not information for a location-related service, the first MEC server transmits the service information to a centralized database, which stores the service information. At this time, the service information stored in the centralized database can be used as the service information on the platform side. The platform-side service information may be used in various services. Such as the service information is video type information, voice type information, etc.
In addition, when the service information is information for a service related to a location, the first MEC server transmits the service information to a centralized database, which stores the service information. At this time, the service information stored in the centralized database can be used as the service information on the platform side. The platform-side service information may be used in various services. Such as the service information is video type information, voice type information, etc.
The data storage method provided by the embodiment of the invention receives the service information sent by the first base station; the service information comprises position information for acquiring the service information and service type information of the service information; determining whether the service information is information for a service related to a location according to the service type information; and when the service information is information for the service related to the position, the service information is sent to the second MEC server, so that when the second MEC server determines that the position information in the service information is located in the first preset range of the second base station, the second MEC server stores the service information, and the hit rate of the user for acquiring data is improved.
Fig. 6 is a schematic flowchart of a data storage method according to an embodiment of the present invention.
As shown in fig. 6, a data storage method provided in an embodiment of the present invention is applied to a second MEC server, and the method includes:
s601: receiving service information sent by a first MEC server; the service information comprises position information for acquiring the service information and service type information of the service information; wherein the service type information is information characterizing that the service information is for a service related to the location.
The second MEC server may store the service information after receiving the service information, or may discard the service information. The second MEC server needs to determine whether to store the service information through the location information included in the service information to acquire the service information.
S602: and determining whether the position information is located in a first preset range of the second base station according to the position information in the received service information.
The service information carries the position information for acquiring the service information. Wherein the location information is a location where the service information is acquired. The service types corresponding to the services applied by different service information have different requirements on the position range for acquiring the service information. For example, a traffic service may require service information within 3 km; application to industrial internets may require business information within 100 meters. Therefore, the second MEC server may set different preset ranges for different types of services. And when the position information in the service information is within the preset range of the second station, the second MEC server stores the service information.
S603: and when the position information is positioned in a first preset range of the second base station, storing the service information.
In one embodiment of the invention, the second MEC server stores the service information for the terminal to obtain the service information. For example, if the vehicle-mounted terminal attached to the second base station needs to acquire the real-time status of a traffic light, and the location of the traffic light is within a second preset range of the second base station, the second MEC server stores the real-time status information of the traffic light. The terminal can avoid long-distance transmission of the service information, delay of information transmission is increased, the acquisition efficiency of the service information is improved, and the hit rate of the edge cache data is improved.
And deleting the service information when the position information is not located in the first preset range of the second base station.
The second MEC may also obtain service information from the centralized database, where the service information obtained in the centralized database is used for initialization of the second MEC server or data update. Specifically, the method comprises the following steps:
sending a service request to a centralized database; the service request carries the service type information, the identifier of the second MEC server and a first preset range, so that the centralized database determines the service information according to the service type information and the first preset range and sends the service information to the second MEC server corresponding to the identifier of the second MEC server;
storing the service information sent by the centralized database;
the service information comprises service type information and position information for acquiring the service information.
Optionally, in the embodiment of the present invention, when the second MEC server needs to update data or initialize data, a service request is sent to the centralized database. The service request carries service type information, an identifier of the second MEC server and a preset range. The preset range is the preset range of the base station corresponding to the second MEC server, and the second MEC server only stores the service information of the base station corresponding to the MEC server in the preset range. Wherein the second MEC server is disposed within a range of the base station.
And the centralized database establishes data demand information for the second MEC server according to the service type information and the preset range. And each item of service information in the data requirement information is associated with and records the MEC server identifier, the service type information and the preset range. Each second MEC server may have records of information of multiple service types, and the preset range of each service type may be different.
Here, the first MEC server may also obtain service information from the centralized data to initialize or need to update the data.
And the centralized database extracts the corresponding service type information and the data in the preset range for the MEC server according to the data demand information and the identification of the MEC server, and initially sends or updates the data to the MEC server. The centralized database provides data information near the position of the MEC server according to the service type and the preset range of the data position corresponding to the data required by the MEC server corresponding to the base station.
The data storage method provided by the embodiment of the invention receives the service information sent by the first MEC server; the service information comprises position information for acquiring the service information and service type information of the service information; wherein the service type information is information characterizing that the service information is for a service related to the location; determining whether the position information is located in a first preset range of the second base station according to the position information in the received service information; when the position information is located in the first preset range of the second base station, the service information is stored, and the hit rate of the user for obtaining data is improved.
Fig. 7 is a data storage apparatus provided in an embodiment of the present invention, where the apparatus is applied to a first MEC server, and the apparatus may include: a receiving module 701, a determining module 702, and a sending module 703.
A receiving module 701, configured to receive service information sent by a first base station; the service information comprises position information for acquiring the service information and service type information of the service information;
a determining module 702, configured to determine whether the service information is information for a service related to a location according to the service type information;
a sending module 703, configured to send, when the service information is information for a service related to a location, the service information to the second MEC server, so that when the second MEC server determines that the location information in the service information is located within a first preset range of the second base station, the second MEC server stores the service information.
Optionally, in this embodiment of the present invention, the sending module 703 is further configured to send the service information to the centralized database, so that the centralized database stores the service information.
Optionally, in this embodiment of the present invention, the sending module 703 is further configured to:
and when the service information is not information for the location-related service, sending the service information to a centralized database for the centralized database to store the service information.
The data storage device provided in the embodiment of the present invention executes each step in the method shown in fig. 5, and can achieve the technical effect of improving the hit rate of the user for obtaining data, which is not described in detail herein for brevity.
Fig. 8 is a data storage apparatus provided in an embodiment of the present invention, where the apparatus is applied to a second MEC server, and the apparatus may include: a receiving module 801, a determining module 802 and a storing module 803.
A receiving module 801, configured to receive service information sent by a first MEC server; the service information comprises position information for acquiring the service information and service type information of the service information; wherein the service type information is information characterizing that the service information is for a service related to the location;
a determining module 802, configured to determine, according to location information in the received service information, whether the location information is located within a first preset range of the second base station;
the storage module 803 is configured to store the service information when the location information is within a first preset range of the second base station.
Optionally, in the embodiment of the present invention, the apparatus further includes a deletion module;
and the deleting module is used for deleting the service information when the position information is not located in the first preset range of the second base station.
Optionally, in the embodiment of the present invention, the sending module is configured to send a service request to the centralized database; the service request carries the service type information, the identifier of the second MEC server and the first preset range, so that the centralized database determines the service information according to the service type information and the first preset range and sends the service information to the second MEC server corresponding to the identifier of the second MEC server;
the storage module 803 is further configured to store the service information sent by the centralized database;
the service information comprises service type information and position information for acquiring the service information.
The data storage apparatus provided in the embodiment of the present invention is configured to receive, through a receiving module 801, service information sent by a first MEC server; the service information comprises position information for acquiring the service information and service type information of the service information; wherein the service type information is information characterizing that the service information is for a service related to the location; a determining module 802, configured to determine, according to location information in the received service information, whether the location information is located within a first preset range of the second base station; the storage module 803 is configured to store the service information when the location information is located within the first preset range of the second base station, so as to improve the hit rate of the user for obtaining data.
The data storage device provided in the embodiment of the present invention executes each step in the method shown in fig. 6, and can achieve the technical effect of improving the hit rate of the user for obtaining data, which is not described in detail herein for brevity.
In addition, in combination with the data storage method in the foregoing embodiment, the embodiment of the present invention may provide a computer storage medium to implement. The computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement any of the data storage methods of the above embodiments.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (13)
1. A data storage method applied to a first edge computing, MEC, server, the method comprising:
receiving service information sent by a first base station; the service information comprises position information for acquiring the service information and service type information of the service information;
determining whether the service information is information for a service related to a location according to the service type information;
when the service information is information for a service related to a location, the service information is sent to a second MEC server, so that when the second MEC server determines that the location information in the service information is located within a first preset range of a second base station, the second MEC server stores the service information.
2. The method of claim 1, further comprising:
and sending the service information to a centralized database for storing the service information in the centralized database.
3. The method of claim 1, further comprising:
when the service information is not information for a location-related service, transmitting the service information to a centralized database for the centralized database to store the service information.
4. A data storage method, wherein the method is applied to a second edge computing, MEC, server; the method comprises the following steps:
receiving service information sent by a first MEC server; the service information comprises position information for acquiring the service information and service type information of the service information; wherein the service type information is information characterizing that the service information is for a service related to a location;
determining whether the position information is located in a first preset range of a second base station according to the position information in the received service information;
and when the position information is located in a first preset range of the second base station, storing the service information.
5. The method of claim 4, further comprising:
and deleting the service information when the position information is not located in a first preset range of the second base station.
6. The method of claim 4, further comprising:
sending a service request to a centralized database; the service request carries service type information, an identifier of a second MEC server and the first preset range, so that the centralized database determines service information according to the service type information and the first preset range and sends the service information to the second MEC server corresponding to the identifier of the second MEC server;
storing the service information sent by the centralized database;
the service information comprises service type information and position information for acquiring the service information.
7. A data storage apparatus, wherein the apparatus is applied to a first edge computing, MEC, server, the apparatus comprising:
the receiving module is used for receiving the service information sent by the first base station; the service information comprises position information for acquiring the service information and service type information of the service information;
a determining module, configured to determine whether the service information is information for a service related to a location according to the service type information;
a sending module, configured to send the service information to a second MEC server when the service information is information for a service related to a location, so that the second MEC server stores the service information when the second MEC server determines that the location information in the service information is located within a first preset range of a second base station.
8. The apparatus of claim 7, wherein the sending module is further configured to send the service information to a centralized database, so that the centralized database stores the service information.
9. The apparatus of claim 7, wherein the sending module is further configured to:
when the service information is not information for a location-related service, transmitting the service information to a centralized database for the centralized database to store the service information.
10. A data storage arrangement, characterized in that said arrangement is applied to a second edge computing, MEC, server; the device comprises:
the receiving module is used for receiving the service information sent by the first MEC server; the service information comprises position information for acquiring the service information and service type information of the service information; wherein the service type information is information characterizing that the service information is for a service related to a location;
a determining module, configured to determine whether the location information is within a first preset range of a second base station according to the location information in the received service information;
and the storage module is used for storing the service information when the position information is positioned in a first preset range of the second base station.
11. The apparatus of claim 10, further comprising:
the sending module is used for sending a service request to the centralized database; the service request carries service type information, an identifier of a second MEC server and the first preset range, so that the centralized database determines service information according to the service type information and the first preset range and sends the service information to the second MEC server corresponding to the identifier of the second MEC server;
the storage module is further configured to store the service information sent by the centralized database;
the service information comprises service type information and position information for acquiring the service information.
12. A data storage system is characterized by comprising a first base station, a second base station, a first edge calculation MEC server arranged in a second preset range of the first base station, a second MEC server arranged in a third preset range of the second base station and a centralized database;
the first MEC server is used for receiving service information sent by the first base station, wherein the service information comprises position information for acquiring the service information and service type information of the service information; determining whether the service information is information for a service related to a location according to the service type information; when the service information is information for a service related to a location, transmitting the service information to the second MEC server; the first MEC server is also used for sending the service information to the centralized database;
the second MEC server is configured to determine, according to the location information in the received service information, whether the location information is located within a first preset range of the second base station; when the position information is located in a first preset range of the second base station, storing the service information;
the centralized database is used for storing the service information sent by the first MEC server.
13. A computer storage medium characterized in that the computer storage medium has stored thereon computer program instructions which, when executed by a processor, implement the data storage method of any one of claims 1-3 or the data storage method of any one of claims 4-6.
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| US11334382B2 (en) * | 2019-04-30 | 2022-05-17 | Intel Corporation | Technologies for batching requests in an edge infrastructure |
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| CN106998345A (en) * | 2016-01-26 | 2017-08-01 | 中兴通讯股份有限公司 | The processing method of business network, apparatus and system |
| CN109495929A (en) * | 2017-09-12 | 2019-03-19 | 华为技术有限公司 | A kind of method for processing business, mobile edge calculations equipment and the network equipment |
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