CN112492621B - Method, system, equipment and medium for dynamic slicing based on 5G core network - Google Patents
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Abstract
The invention discloses a method, a system, equipment and a storage medium based on 5G core network dynamic slicing, wherein the method comprises the following steps: respectively acquiring the total bearing capacity of a core layer and an access layer of a core network, and calculating the difference value of the total bearing capacity of the core layer and the access layer; reading the number of current users at intervals of preset time, and calculating the current flow according to the number of the current users and the total bearing capacity of the core layer; calculating the number of slices based on the difference value of the total bearing force of the core layer and the access layer and the current flow; and re-partitioning the resources allocated to each slice according to the number of slices. The dynamic slicing technology based on the network combines and arranges the service network and the management network, and quickly cuts and integrates the network when the service requirement is greater than the management requirement so as to manage the alternative service, dynamically expand the capacity, realize the dynamic expansion only by modifying the bearing capacity, and greatly improve the overall operation and maintenance efficiency.
Description
Technical Field
The present invention relates to the field of 5G, and more particularly, to a method, a system, a computer device, and a readable medium for dynamic slicing based on a 5G core network.
Background
5G, short for fifth generation mobile communication technology. The 5G network is used as a next generation mobile communication network, and the maximum theoretical transmission speed of the network can reach tens of Gb per second, which is hundreds of times faster than that of the 4G network. The core network is the bottom layer of the efficient and rapid network and is used as the brain of the mobile communication network and is responsible for managing and controlling the whole network, and the 5G core network is characterized in that a plurality of network elements are functionalized individually. The 5G core network is the most important of the 5G technology, the performance of the core network plays a crucial role in the health degree of the whole data center, and how to convert the physical resources of the core network into dynamic virtual network resources is urgent. In the prior art, slicing is only performed once according to resources, so that the desired technical effect is often not achieved.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide a method, a system, a computer device, and a computer readable storage medium for dynamic slicing based on a 5G core network, which merge and organize a service network and a management network based on a dynamic slicing technology of a network, and quickly cut and integrate the network when a service demand is greater than a management demand, so as to achieve management of a substitute service, and dynamically expand capacity, and dynamic expansion can be implemented only by modifying a carrying capacity, thereby greatly improving overall operation and maintenance efficiency.
Based on the above object, an aspect of the embodiments of the present invention provides a method for dynamic slicing based on a 5G core network, including the following steps: respectively acquiring the total bearing capacity of a core layer and an access layer of a core network, and calculating the difference value of the total bearing capacity of the core layer and the access layer; reading the number of current users at intervals of preset time, and calculating the current flow according to the number of the current users and the total bearing capacity of the core layer; calculating the number of slices based on the difference between the total bearing forces of the core layer and the access layer and the current flow; and re-partitioning the resources allocated to each slice according to the number of slices.
In some embodiments, the separately obtaining the total bearing capacity of the core layer and the access layer of the core network comprises: and acquiring the bearing capacity of the management core switch and the service core switch in the core layer, and calculating the total bearing capacity of the core layer according to the bearing capacity of the management core switch and the service core switch.
In some embodiments, the obtaining the total bearing capacity of the core layer and the access layer of the core network respectively comprises: judging whether core switches in the core layer are stacked; and doubling the total bearing force of the core layer in response to a core switch stack in the core layer.
In some embodiments, the calculating the current traffic based on the current number of users and the total bearing capacity of the core layer comprises: and determining the direction of the slice according to the current flow.
In some embodiments, said repartitioning the resources allocated to each slice according to the number of slices comprises: and distributing corresponding virtual and physical resources to the slices of the core network according to the service level protocol.
In some embodiments, the reading the current number of users at predetermined time intervals comprises: and judging whether the current user number is more than the last read user number.
In some embodiments, said repartitioning of the resources allocated to each slice according to the number of slices comprises: and in response to the current number of users not more than the number of users read last time, merging the slices of the last time.
In another aspect of the embodiments of the present invention, a system for dynamically slicing based on a 5G core network is further provided, including: the first calculation module is configured to obtain total bearing forces of a core layer and an access layer of a core network respectively, and calculate a difference value of the total bearing forces of the core layer and the access layer; the second calculation module is configured to read the number of current users at intervals of preset time and calculate the current flow according to the number of the current users and the total bearing capacity of the core layer; a third calculation module configured to calculate the number of slices based on a difference between total bearing forces of the core layer and the access layer and the current traffic; and an allocation module configured to re-partition the resources allocated to each slice according to the number of slices.
In another aspect of the embodiments of the present invention, there is also provided a computer device, including: at least one processor; and a memory storing computer instructions executable on the processor, the instructions when executed by the processor implementing the steps of the method as above.
In a further aspect of the embodiments of the present invention, a computer-readable storage medium is also provided, in which a computer program for implementing the above method steps is stored when the computer program is executed by a processor.
The invention has the following beneficial technical effects: the dynamic slicing technology based on the network combines and arranges the service network and the management network, when the service requirement is greater than the management requirement, the integrated network is quickly cut to achieve the purpose of managing the alternative service, dynamic capacity expansion can be realized only by modifying the bearing capacity, and the overall operation and maintenance efficiency is greatly improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
Fig. 1 is a schematic diagram of an embodiment of a method for dynamic slicing based on a 5G core network according to the present invention;
fig. 2 is a schematic hardware structure diagram of an embodiment of the computer device based on 5G core network dynamic slicing provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In view of the above object, a first aspect of the embodiments of the present invention provides an embodiment of a method for dynamic slicing based on a 5G core network. Fig. 1 is a schematic diagram illustrating an embodiment of a method for dynamic slicing based on a 5G core network according to the present invention. As shown in fig. 1, the embodiment of the present invention includes the following steps:
s1, respectively obtaining the total bearing capacity of a core layer and an access layer of a core network, and calculating the difference value of the total bearing capacity of the core layer and the access layer;
s2, reading the number of current users at intervals of preset time, and calculating the current flow according to the number of the current users and the total bearing capacity of the core layer;
s3, calculating the number of slices based on the difference value of the total bearing force of the core layer and the access layer and the current flow; and
and S4, re-dividing the resources allocated to each slice according to the number of the slices.
The 5G core network comprises an exit layer, a core layer and an access layer, wherein the core layer comprises a management EOR (core switch), a service EOR and a storage EOR, and the access layer comprises a management TOR (top of rack switch), a service TOR and a storage TOR.
Respectively obtaining the total bearing capacity of a core layer and an access layer of a core network, and calculating the difference value of the total bearing capacity of the core layer and the access layer.
In some embodiments, the obtaining the total bearing capacity of the core layer and the access layer of the core network respectively comprises: and acquiring the bearing capacity of the management core switch and the service core switch in the core layer, and calculating the total bearing capacity of the core layer according to the bearing capacity of the management core switch and the service core switch. In this embodiment, the core layer includes two management EORs and two service EORs, and the bearing capacity of each management EOR and each service EOR is 576 by 100GE, so that the total bearing capacity of the current core network is 576 by 100 by 4, that is, 230400GE. The access layer comprises 5 hardware management TORs, each bearing capacity is 64 10 GEs, 45 management TORs, each bearing capacity is 64 40GE, 45 service TORs and each bearing capacity is 64 40GE, so that the total bearing capacity of the access layer under the current core network is 64 + 10 + 5+64 + 40 + 45, namely 233600GE.
In some embodiments, the obtaining the total bearing capacity of the core layer and the access layer of the core network respectively comprises: judging whether core switches in the core layer are stacked; and doubling the total bearing force of the core layer in response to a core switch stack in the core layer. In this embodiment, the EOR is stacked, so the bearing capacity is doubled, that is, the bearing capacity of the core layer is 230400ge × 2=460800ge.
And reading the number of the current users at preset intervals, and calculating the current flow according to the number of the current users and the total bearing capacity of the core layer. For example, the number of current users is 1 hundred million, the number of users read last time is 1000 ten thousand, the last traffic = the last user amount/current bandwidth, that is, the last traffic =10000000/460800=21.70, the user amount is increased sharply to 1 hundred million, and the original service network is split into 10 using slices, that is, the original service network needs to be transferred and cut. In order to ensure that the traffic used by the TOR in the downstream is not changed, the management TOR network and the service TOR need to be split, and the original traffic is continuously split. In order to ensure that the traffic does not change, it is necessary to aggregate and use each TOR and dynamically adjust the original network, that is, the stability of the original service network is finally ensured.
In some embodiments, the calculating the current traffic based on the current number of users and the total bearing capacity of the core layer comprises: and determining the direction of the slice according to the current flow.
The number of slices is calculated based on the difference in total bearing force of the core layer and the access layer and the current flow. The formula for the number of slices may be as follows: (current user volume/current bandwidth)/EOR bearer-TOR bearer = slice number.
The resources allocated to each slice are repartitioned according to the number of slices. New slice data is recalculated in a given device by the number of slices using a bearing algorithm.
In some embodiments, said repartitioning the resources allocated to each slice according to the number of slices comprises: and distributing corresponding virtual and physical resources to the slices of the core network according to the service level protocol. The core network slice selects corresponding virtual and physical resources according to SLA (service level agreement), and the SLA comprises a plurality of parameters of user number and bandwidth.
In some embodiments, the reading the current number of users at predetermined time intervals comprises: and judging whether the current user number is more than the last read user number.
In some embodiments, said repartitioning the resources allocated to each slice according to the number of slices comprises: and in response to the current number of users not more than the number of users read last time, merging the slices of last time. For example, the number of users at the last time is 1000 ten thousand, and the number of users at the present time is 100 ten thousand, that is, 10 slices at the last time can be combined into one group.
The intelligent dynamic slicing technology based on the network combines and arranges the service network and the management network, and when the service requirement is greater than the management requirement, the integrated network is quickly cut to achieve the purpose of managing the alternative service, dynamic capacity expansion can be realized only by modifying the bearing capacity, and the overall operation and maintenance efficiency is greatly improved. The network slice can be used for a traditional data center, and can also utilize scenes such as Virtual Reality (VR), cloud computing, intelligent monitoring and block chaining (CBCC) of a new scene. The rapid network slicing can greatly improve the utilization rate of the whole data center and support rapid capacity expansion.
It should be particularly noted that, the steps in the embodiments of the above-mentioned method based on dynamic slicing of 5G core network may be mutually intersected, replaced, added, and deleted, so that these reasonable permutation and combination transformations of the method based on dynamic slicing of 5G core network shall also belong to the scope of the present invention, and shall not limit the scope of the present invention to the embodiments.
In view of the above object, a second aspect of the embodiments of the present invention provides a system based on dynamic slice of a 5G core network, including: the first calculation module is configured to obtain total bearing capacity of a core layer and a core access layer of a core network respectively, and calculate a difference value between the total bearing capacity of the core layer and the total bearing capacity of the core access layer; the second calculation module is configured to read the number of current users at intervals of preset time and calculate the current flow according to the number of the current users and the total bearing capacity of the core layer; a third calculation module configured to calculate the number of slices based on a difference between total bearing forces of the core layer and the access layer and the current traffic; and an allocation module configured to re-partition the resources allocated to each slice according to the number of slices.
In some embodiments, the first computing module is configured to: and acquiring the bearing capacity of the management core switch and the service core switch in the core layer, and calculating the total bearing capacity of the core layer according to the bearing capacity of the management core switch and the service core switch.
In some embodiments, the first computing module is configured to: judging whether core switches in the core layer are stacked; and doubling the total bearing capacity of the core layer in response to a core switch stack in the core layer.
In some embodiments, the second computing module is configured to: and determining the direction of the slice according to the current flow.
In some embodiments, the assignment module is configured to: and distributing corresponding virtual and physical resources to the slices of the core network according to the service level protocol.
In some embodiments, the second computing module is configured to: and judging whether the current user number is more than the last read user number.
In some embodiments, the assignment module is configured to: and in response to the current number of users not more than the number of users read last time, merging the slices of last time.
In view of the above object, a third aspect of the embodiments of the present invention provides a computer device, including: at least one processor; and a memory storing computer instructions executable on the processor, the instructions being executable by the processor to perform the steps of: s1, respectively obtaining the total bearing capacity of a core layer and an access layer of a core network, and calculating the difference value of the total bearing capacity of the core layer and the access layer; s2, reading the number of current users at intervals of preset time, and calculating the current flow according to the number of the current users and the total bearing capacity of the core layer; s3, calculating the number of slices based on the difference value of the total bearing force of the core layer and the access layer and the current flow; and S4, the resources allocated to each slice are divided again according to the number of the slices.
In some embodiments, the obtaining the total bearing capacity of the core layer and the access layer of the core network respectively comprises: and acquiring the bearing capacity of the management core switch and the service core switch in the core layer, and calculating the total bearing capacity of the core layer according to the bearing capacity of the management core switch and the service core switch.
In some embodiments, the separately obtaining the total bearing capacity of the core layer and the access layer of the core network comprises: judging whether core switches in the core layer are stacked; and doubling the total bearing capacity of the core layer in response to a core switch stack in the core layer.
In some embodiments, the calculating the current traffic based on the current number of users and the total bearing capacity of the core layer comprises: and determining the direction of the slice according to the current flow.
In some embodiments, said repartitioning the resources allocated to each slice according to the number of slices comprises: and distributing corresponding virtual and physical resources to the slices of the core network according to the service level protocol.
In some embodiments, said reading the current number of users at predetermined time intervals comprises: and judging whether the current user number is more than the last read user number.
In some embodiments, said repartitioning the resources allocated to each slice according to the number of slices comprises: and in response to the current number of users not more than the number of users read last time, merging the slices of the last time.
Fig. 2 is a schematic hardware structure diagram of an embodiment of the computer device based on the dynamic slice of the 5G core network according to the present invention.
Taking the apparatus shown in fig. 2 as an example, the apparatus includes a processor 301 and a memory 302, and may further include: an input device 303 and an output device 304.
The processor 301, the memory 302, the input device 303 and the output device 304 may be connected by a bus or other means, and fig. 2 illustrates the connection by a bus as an example.
The memory 302 is a non-volatile computer-readable storage medium, and can be used for storing non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the method for dynamic slicing based on the 5G core network in the embodiment of the present application. The processor 301 executes various functional applications of the server and data processing by running nonvolatile software programs, instructions and modules stored in the memory 302, that is, implements the method based on the 5G core network dynamic slice of the above method embodiment.
The memory 302 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the 5G core network dynamic slice-based method, and the like. Further, the memory 302 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 302 optionally includes memory located remotely from processor 301, which may be connected to a local module via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 303 may receive information such as a user name and a password that are input. The output means 304 may comprise a display device such as a display screen.
Program instructions/modules corresponding to the one or more 5G core network dynamic slicing based methods are stored in the memory 302 and, when executed by the processor 301, perform the 5G core network dynamic slicing based method of any of the above-described method embodiments.
Any embodiment of the computer device executing the method for dynamic slicing based on the 5G core network can achieve the same or similar effects as any corresponding method embodiment.
The invention also provides a computer readable storage medium storing a computer program which, when executed by a processor, performs the method as above.
Finally, it should be noted that, as one of ordinary skill in the art can appreciate that all or part of the processes of the methods of the above embodiments can be implemented by a computer program to instruct related hardware, and the program of the method based on the dynamic slicing of the 5G core network can be stored in a computer readable storage medium, and when executed, the program can include the processes of the embodiments of the methods described above. The storage medium of the program may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like. The embodiments of the computer program may achieve the same or similar effects as any of the above-described method embodiments.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (7)
1. A method for dynamically slicing based on a 5G core network is characterized by comprising the following steps:
respectively acquiring the total bearing capacity of a core layer and an access layer of a core network, and calculating the difference value of the total bearing capacity of the core layer and the access layer;
reading the number of current users at intervals of preset time, and calculating the current flow according to the number of the current users and the total bearing capacity of the core layer;
calculating the number of slices based on the difference between the total bearing forces of the core layer and the access layer and the current flow; and
re-partitioning the resources allocated to each slice according to the number of slices;
wherein the respectively obtaining the total bearing capacity of the core layer and the access layer of the core network comprises:
acquiring the bearing capacity of a management core switch and a service core switch in the core layer, and calculating the total bearing capacity of the core layer according to the bearing capacity of the management core switch and the service core switch;
the reading the current user number at preset time intervals comprises the following steps:
judging whether the number of the current users is more than the number of the users read last time;
the repartitioning of resources allocated to each slice according to the number of slices comprises:
and in response to the current number of users not more than the number of users read last time, merging the slices of the last time.
2. The method of claim 1, wherein the obtaining the total bearing capacity of the core layer and the access layer of the core network respectively comprises:
judging whether core switches in the core layer are stacked; and
doubling a total loading force of the core layer in response to a core switch stack in the core layer.
3. The method of claim 1, wherein calculating the current traffic based on the current number of users and the total bearing capacity of the core layer comprises:
and determining the direction of the slice according to the current flow.
4. The method of claim 1, wherein the repartitioning of the resources allocated to each slice according to the number of slices comprises:
and distributing corresponding virtual and physical resources to the slices of the core network according to the service level protocol.
5. A system for dynamic slicing based on a 5G core network, comprising:
the first calculation module is configured to obtain total bearing forces of a core layer and an access layer of a core network respectively, and calculate a difference value of the total bearing forces of the core layer and the access layer;
the second calculation module is configured to read the number of current users at preset intervals and calculate the current flow according to the number of the current users and the total bearing capacity of the core layer;
a third calculation module configured to calculate the number of slices based on a difference between total bearing forces of the core layer and the access layer and the current traffic; and
an allocation module configured to re-partition the resources allocated to each slice according to the number of slices;
wherein the respectively obtaining the total bearing capacity of the core layer and the access layer of the core network comprises:
acquiring the bearing capacity of a management core switch and a service core switch in the core layer, and calculating the total bearing capacity of the core layer according to the bearing capacity of the management core switch and the service core switch;
the reading the current user number at predetermined time intervals comprises:
judging whether the number of the current users is more than the number of the users read last time;
the repartitioning of resources allocated to each slice according to the number of slices comprises:
and in response to the current number of users not more than the number of users read last time, merging the slices of the last time.
6. A computer device, comprising:
at least one processor; and
a memory storing computer instructions executable on the processor, the instructions when executed by the processor implementing the steps of the method of any one of claims 1 to 4.
7. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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| CN111083744A (en) * | 2019-12-31 | 2020-04-28 | 北京思特奇信息技术股份有限公司 | Network slicing method, device, storage medium and equipment |
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