CN109729506B - Service caching method, system and device - Google Patents
Service caching method, system and device Download PDFInfo
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- CN109729506B CN109729506B CN201711039839.6A CN201711039839A CN109729506B CN 109729506 B CN109729506 B CN 109729506B CN 201711039839 A CN201711039839 A CN 201711039839A CN 109729506 B CN109729506 B CN 109729506B
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Abstract
The disclosure discloses a service caching method, a service caching system and a service caching device, and relates to the field of wireless communication. The method comprises the steps that after a terminal leaves a source cell to which a source mobile edge computing server belongs and enters a target cell to which a target mobile edge computing server belongs, the source mobile edge computing server and the target mobile edge computing server cache the same service content for the terminal from a service server at the same time according to the same progress. Therefore, the service used by the user can be cached in time, and consistent service experience of the user is guaranteed.
Description
Technical Field
The present disclosure relates to the field of wireless communications, and in particular, to a method, a system, and an apparatus for caching a service.
Background
The International Telecommunications Union (ITU) has clearly defined the application scenarios of three 5G networks, namely Enhanced mobile broadband (eMBB), high-reliable and low latency communications (URLLC), and Massive machine type communications (mtc).
Mobile Edge Computing (MEC) technology is one of the important solutions to improve the eMBB and URLLC scenarios. The MEC deploys flexible computing and storage resources at the edge of a mobile network (i.e., a radio access network) by using software-defined networking and network function virtualization technologies, so that the network has the capabilities of caching and computing while maintaining the communication capability. The main advantages of the MEC include reduced transmission delay, saved backhaul bandwidth, better support of proximity services, and benefit to intelligent perception of network information.
Disclosure of Invention
The inventors have found that in MEC networks, user traffic content is cached in MEC servers at the edge of the network. According to the characteristics of the mobile communication network, the user is frequently handed over. When users (especially users with a large number) move among cells to which different MEC servers belong and frequent repeated switching occurs, a phenomenon that service caching in use by the users is not timely occurs, so that consistent service experience of the users cannot be guaranteed.
According to an aspect of the present disclosure, a method for caching a service is provided, including:
after the terminal leaves a source cell to which a source mobile edge computing server belongs and enters a target cell to which a target mobile edge computing server belongs, the source mobile edge computing server and the target mobile edge computing server cache the same service content for the terminal from a service server at the same time according to the same progress.
Optionally, after the terminal leaves the source cell to which the source mobile edge computing server belongs and enters the target cell to which the target mobile edge computing server belongs, the source mobile edge computing server notifies the target mobile edge computing server of the caching progress of the service content.
Optionally, it is determined whether the source mobile edge computing server stops caching the service content for the terminal from the service server according to a network condition where the terminal is located.
Optionally, when the signal intensity of the source cell measured by the terminal is smaller than a preset intensity threshold and the duration time is greater than a preset time threshold, the source mobile edge computing server stops caching the service content for the terminal from the service server;
or, when the signal intensity of the target cell measured by the terminal is greater than a preset intensity threshold and the duration time is greater than a preset time threshold, the source mobile edge computing server stops caching the service content for the terminal from the service server;
or, when the signal strength of the source cell measured by the terminal is smaller than the signal strength of the target cell measured by the terminal and the duration is greater than a preset time threshold, the source mobile edge calculation server stops caching the service content for the terminal service server.
According to another aspect of the present disclosure, a service caching system is provided, including: a source mobile edge calculation server and a target mobile edge calculation server;
the source mobile edge calculation server and the target mobile edge calculation server are configured to cache the same service content for the terminal from the service server at the same time according to the same progress after the terminal leaves a source cell to which the source mobile edge calculation server belongs and enters a target cell to which the target mobile edge calculation server belongs.
Optionally, after the terminal leaves the source cell to which the source mobile edge computing server belongs and enters the target cell to which the target mobile edge computing server belongs, the source mobile edge computing server notifies the target mobile edge computing server of the caching progress of the service content.
Optionally, the system further comprises: a mobile edge computing controller configured to determine whether a source mobile edge computing server stops caching service content for the terminal from a service server according to a network condition in which the terminal is located.
Optionally, the moving edge calculation controller includes: a first control unit, a second control unit, or a third control unit;
the first control unit is configured to determine that the source mobile edge calculation server stops caching the service content for the terminal from the service server when the source cell signal strength measured by the terminal is smaller than a preset strength threshold and the duration is greater than a preset time threshold;
the second control unit is configured to determine that the source mobile edge calculation server stops caching the service content for the terminating service server when the signal intensity of the target cell measured by the terminal is greater than a preset intensity threshold and the duration time is greater than a preset time threshold;
the third control unit is configured to determine that the source mobile edge calculation server stops caching the service content for the terminal from the service server when the source cell signal strength measured by the terminal is less than the measured target cell signal strength and the duration is greater than a preset time threshold.
Optionally, the system further comprises: and the terminal is configured to obtain the service content from the target mobile edge computing server after entering a target cell to which the target mobile edge computing server belongs, and obtain the service content from the source mobile edge computing server after entering a source cell to which the source mobile edge computing server belongs.
Optionally, the terminal is configured to measure a network condition of the terminal and report the network condition, where the network condition includes at least one of a source cell signal strength and a target cell signal strength.
According to another aspect of the present disclosure, a service caching apparatus is provided, including:
a memory; and
a processor coupled to the memory, the processor configured to perform the aforementioned traffic caching method based on instructions stored in the memory.
According to yet another aspect of the present disclosure, a computer-readable storage medium is proposed, on which a computer program is stored, which when executed by a processor implements the steps of the aforementioned traffic caching method.
According to the method and the device, after the terminal leaves a source cell to which a source mobile edge computing server belongs, the source mobile edge computing server does not immediately stop caching the service content of the terminal, but caches the same service content with a target mobile edge computing server according to the same progress. Therefore, when the terminal moves among the cells to which different mobile edge computing servers belong and is frequently and repeatedly switched, the service content in use can be timely cached, after the terminal enters the target cell to which the target mobile edge computing server belongs, the service content is obtained from the target mobile edge computing server, after the terminal enters the source cell to which the source mobile edge computing server belongs, the service content is obtained from the source mobile edge computing server, and consistent service experience of a user is guaranteed.
Drawings
The drawings that will be used in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description, which proceeds with reference to the accompanying drawings,
it is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without undue inventive faculty.
Fig. 1 is a schematic flow chart of an embodiment of a service caching method according to the present disclosure.
Fig. 2 is a schematic flow chart of another embodiment of the disclosed service caching method.
Fig. 3 is a schematic structural diagram of an embodiment of the disclosed service caching system.
Fig. 4 is a structural diagram of an embodiment of the disclosed service caching apparatus.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
Fig. 1 is a schematic flow chart of an embodiment of a service caching method according to the present disclosure.
As shown in fig. 1, the method 10 includes:
And step 120, the terminal leaves the source cell to which the source mobile edge computing server belongs and enters the target cell to which the target mobile edge computing server belongs.
In step 130, the source mobile edge computing server does not immediately stop caching the service content of the terminal, and the source mobile edge computing server and the target mobile edge computing server cache the same service content for the terminal from the service server at the same time according to the same progress.
After the terminal leaves a source cell to which the source mobile edge computing server belongs and enters a target cell to which the target mobile edge computing server belongs, the source mobile edge computing server informs the target mobile edge computing server of the caching progress of the service content. The present disclosure is not limited to the specific manner of notification, for example, if the source mobile edge computing server and the target mobile edge computing server have a communication interface, the source mobile edge computing server may directly notify the target mobile edge computing server. Alternatively, the source mobile edge compute server notifies the destination mobile edge compute server through an upload device, such as a mobile edge compute controller or other device.
Step 140, when the terminal moves between the cells to which the different mobile edge computing servers belong and frequently switches repeatedly, after entering the target cell to which the target mobile edge computing server belongs, the terminal acquires the service content from the target mobile edge computing server, and after entering the source cell to which the source mobile edge computing server belongs, the terminal acquires the service content from the source mobile edge computing server.
The embodiment can timely cache the service used by the user, and ensure consistent service experience of the user.
The method and the system can also sense the network environment before the terminal and decide when to terminate the caching of the service content of the source mobile edge computing server through the mobile edge computing network information intelligent sensing technology. Described below in conjunction with fig. 2.
Fig. 2 is a schematic flow chart of another embodiment of the disclosed service caching method.
As shown in fig. 2, the method 20 includes:
In step 230, the source mobile edge computing server does not immediately stop caching the service content of the terminal, and the source mobile edge computing server and the target mobile edge computing server cache the same service content for the terminal from the service server at the same time according to the same progress.
Meanwhile, the terminal measures the network condition of itself and reports it to the mobile edge computing controller. Wherein the network condition includes at least one of a source cell signal strength and a target cell signal strength.
Step 240, when the terminal moves between the cells to which different mobile edge computing servers belong and frequently switches repeatedly, after entering the target cell to which the target mobile edge computing server belongs, the terminal acquires the service content from the target mobile edge computing server, and after entering the source cell to which the source mobile edge computing server belongs, the terminal acquires the service content from the source mobile edge computing server.
In step 250, the mobile edge computing controller determines whether the source mobile edge computing server stops caching the service content for the terminal from the service server according to the network condition of the terminal.
And when the network condition of the terminal meets the preset network stopping condition, informing the source mobile edge computing server to stop caching the service content for the terminal from the service server, and stopping measuring the network condition of the terminal by the terminal.
When the network condition of the terminal does not meet the preset network stopping condition, the source mobile edge computing server and the target mobile edge computing server are informed to cache the same service content for the terminal from the service server at the same time according to the same progress, and the terminal continues to measure the network condition of the terminal and reports the network condition.
Some examples of stop network conditions are listed below.
For example, when the signal intensity of the source cell measured by the terminal is smaller than a preset intensity threshold and the duration is greater than a preset time threshold, the source mobile edge calculation server stops caching the service content for the terminal from the service server.
Or, when the signal intensity of the target cell measured by the terminal is greater than the preset intensity threshold value and the duration time is greater than the preset time threshold value, the source mobile edge computing server stops caching the service content for the terminal from the service server.
Or, when the signal intensity of the source cell measured by the terminal is smaller than the signal intensity of the target cell measured by the terminal and the duration time is greater than the preset time threshold value, the source mobile edge computing server stops caching the service content from the service server for the terminal.
The execution sequence of steps 240 and 250 is not limited in this embodiment, for example, the execution sequence shown in fig. 2, or step 250 is executed first and then step 240 is executed.
According to the embodiment, consistent service experience of the user can be considered, and storage resources of the mobile edge computing server can be saved.
Fig. 3 is a schematic structural diagram of an embodiment of the disclosed service caching system.
As shown in fig. 3, the system 30 includes: a source mobile edge compute server 310 and a target mobile edge compute server 320.
The source mobile edge computing server 310 and the target mobile edge computing server 320 are configured to cache the same service content for the terminal from the service server at the same time according to the same progress after the terminal leaves the source cell to which the source mobile edge computing server 310 belongs and enters the target cell to which the target mobile edge computing server 320 belongs.
After the terminal leaves the source cell to which the source mobile edge computing server 310 belongs and enters the target cell to which the target mobile edge computing server 320 belongs, the source mobile edge computing server 310 notifies the target mobile edge computing server 320 of the caching progress of the service content.
As shown in fig. 3, the system 30 further includes: a mobile edge computing controller 330 configured to determine whether the source mobile edge computing server 310 stops caching the service content for the terminal from the service server according to the network condition of the terminal.
Wherein the moving edge calculation controller 330 includes: a first control unit, a second control unit, or a third control unit.
And the first control unit is configured to determine that the source mobile edge computing server stops caching the service content for the terminal from the service server when the source cell signal strength measured by the terminal is less than a preset strength threshold value and the duration is greater than a preset time threshold value.
And the second control unit is configured to determine that the source mobile edge computing server stops caching the service content for the terminal from the service server when the signal intensity of the target cell measured by the terminal is greater than a preset intensity threshold value and the duration time is greater than a preset time threshold value.
And the third control unit is configured to determine that the source mobile edge computing server stops caching the service content for the terminal from the service server when the source cell signal strength measured by the terminal is less than the measured target cell signal strength and the duration is greater than a preset time threshold value.
As shown in fig. 3, the system 30 further includes: the terminal 340 is configured to obtain the service content from the target mobile edge computing server 320 after entering the target cell to which the target mobile edge computing server 320 belongs, and obtain the service content from the source mobile edge computing server 310 after entering the source cell to which the source mobile edge computing server 310 belongs.
The terminal 340 is further configured to measure a network condition where the terminal is located, and report the network condition. In order to determine whether the source mobile edge computing server 310 stops caching the service content for the terminal from the service server according to the reported network condition, the mobile edge computing controller 330. Wherein the network condition includes at least one of a source cell signal strength and a target cell signal strength.
The embodiment can timely cache the service used by the user, and ensure consistent service experience of the user. Moreover, consistent service experience of users can be considered, and storage resources of the mobile edge computing server can be saved.
Fig. 4 is a structural diagram of an embodiment of the disclosed service caching apparatus. As shown in fig. 4, the apparatus 40 of this embodiment includes: a memory 410 and a processor 420 coupled to the memory 410, the processor 420 being configured to execute the traffic caching method in any of the embodiments described above based on instructions stored in the memory 410.
The apparatus 40 may also include an input output interface 430, a network interface 440, a storage interface 450, and the like. These interfaces 430, 440, 450 and the connection between the memory 410 and the processor 420 may be, for example, via a bus 460. The input/output interface 430 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 440 provides a connection interface for various networking devices. The storage interface 450 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also proposes a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the aforementioned service caching method.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (8)
1. A service caching method comprises the following steps:
after the terminal leaves a source cell to which a source mobile edge computing server belongs and enters a target cell to which a target mobile edge computing server belongs, the source mobile edge computing server and the target mobile edge computing server cache the same service content for the terminal from a service server at the same time according to the same progress;
determining whether a source mobile edge computing server stops caching service content for the terminal from a service server according to the network condition of the terminal, including:
when the signal intensity of the source cell measured by the terminal is smaller than a preset intensity threshold value and the duration time is larger than a preset time threshold value, the source mobile edge computing server stops caching service content for the terminal from the service server;
or, when the signal intensity of the target cell measured by the terminal is greater than a preset intensity threshold and the duration time is greater than a preset time threshold, the source mobile edge computing server stops caching the service content for the terminal from the service server;
or, when the signal intensity of the source cell measured by the terminal is smaller than the signal intensity of the target cell measured by the terminal and the duration is greater than a preset time threshold, the source mobile edge calculation server stops caching the service content for the terminal from the service server.
2. The method of claim 1, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,
after the terminal leaves a source cell to which the source mobile edge computing server belongs and enters a target cell to which the target mobile edge computing server belongs, the source mobile edge computing server informs the target mobile edge computing server of the caching progress of the service content.
3. A traffic caching system, comprising: a source mobile edge calculation server, a target mobile edge calculation server and a mobile edge calculation controller;
the source mobile edge computing server and the target mobile edge computing server are configured to cache the same service content for the terminal from the service server according to the same progress after the terminal leaves a source cell to which the source mobile edge computing server belongs and enters a target cell to which the target mobile edge computing server belongs;
the mobile edge computing controller is configured to determine whether a source mobile edge computing server stops caching service content for the terminal from a service server according to a network condition of the terminal;
the moving edge calculation controller includes: a first control unit, a second control unit, or a third control unit;
the first control unit is configured to determine that the source mobile edge calculation server stops caching the service content for the terminal from the service server when the source cell signal strength measured by the terminal is smaller than a preset strength threshold and the duration is greater than a preset time threshold;
the second control unit is configured to determine that the source mobile edge calculation server stops caching the service content for the terminal from the service server when the signal intensity of the target cell measured by the terminal is greater than a preset intensity threshold and the duration is greater than a preset time threshold;
the third control unit is configured to determine that the source mobile edge calculation server stops caching the service content for the terminal from the service server when the source cell signal strength measured by the terminal is less than the measured target cell signal strength and the duration is greater than a preset time threshold.
4. The system of claim 3, wherein,
after the terminal leaves a source cell to which the source mobile edge computing server belongs and enters a target cell to which the target mobile edge computing server belongs, the source mobile edge computing server informs the target mobile edge computing server of the caching progress of the service content.
5. The system of claim 3, further comprising:
and the terminal is configured to obtain the service content from the target mobile edge computing server after entering a target cell to which the target mobile edge computing server belongs, and obtain the service content from the source mobile edge computing server after entering a source cell to which the source mobile edge computing server belongs.
6. The system of claim 5, wherein,
the terminal is configured to measure a network condition of the terminal and report the network condition, wherein the network condition includes at least one of signal strength of a source cell and signal strength of a target cell.
7. A traffic caching apparatus, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the traffic caching method of any one of claims 1-2 based on instructions stored in the memory.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the traffic caching method according to any one of claims 1-2.
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| WO2021114132A1 (en) * | 2019-12-11 | 2021-06-17 | 华为技术有限公司 | Communication method and device |
| CN111132248A (en) * | 2019-12-12 | 2020-05-08 | 中国联合网络通信集团有限公司 | Data transmission method and device |
| CN111447652B (en) * | 2020-03-20 | 2022-07-01 | 中移雄安信息通信科技有限公司 | Switching method, device and equipment of mobile edge operation host of mobile terminal |
| CN113542330B (en) * | 2020-04-21 | 2023-10-27 | 中移(上海)信息通信科技有限公司 | Mobile edge calculation data acquisition method and system |
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