CN111555910B - Self-healing and self-operation maintenance method and system based on network slice - Google Patents
Self-healing and self-operation maintenance method and system based on network slice Download PDFInfo
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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Abstract
The invention discloses a self-healing and self-operation maintenance method and system based on network slices, and relates to the field of 5G communication. The method comprises the following steps: monitoring and judging the state index of the network slice example, and when the state index exceeds a preset threshold value, adjusting the state of the network slice example by automatically curing the network function main body, expanding the network function main body or contracting the network function main body; the adjusted network slice example provides normal network service by using system resources, ensures the normal network service of terminal service, realizes an automatic method for autonomous cure and autonomous operation and maintenance, solves the problems of hysteresis of manual intervention operation and maintenance and other errors caused by misoperation, reduces manual investment, and improves the availability and the safety of a network.
Description
Technical Field
The invention relates to the field of 5G communication, in particular to a self-healing and self-operation maintenance method and system based on network slices.
Background
In the present day when the communication industry reaches the 5G standard, the dependence and demand of various social industries on communication are more strict and strict, and in view of the fact that the social demand and the development status of communication technology reach the same condition, the 5G standard discloses a new network providing form of network slicing under the definition of the global communication association, and different industries have performance requirements on different networks and do not directly influence the performance mutually, so that after a large number of network slicing examples exist in the current communication network, the examples are all independent networks, and the independent networks are respectively and independently monitored and operated and maintained, so that the congestion of the industry network can be caused, and the cost is very high.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a self-healing and self-operation maintenance method and system based on network slices.
The technical scheme for solving the technical problems is as follows:
a self-healing and self-operation maintenance method based on network slices comprises the following steps:
s1, monitoring and judging a state index of a network slice example;
s2, when the state index exceeds a preset threshold value, adjusting the state of the network slice example by automatically curing the network function main body, expanding the network function main body or contracting the network function main body;
and S3, the adjusted network slice example provides normal network service by using system resources.
The invention has the beneficial effects that: according to the scheme, the state indexes of the network slice examples are monitored, when the state indexes exceed the preset threshold value, automatic operation and maintenance are carried out through automatically curing the network function main body, expanding the network function main body or contracting the network function main body, normal network service of terminal services is guaranteed, an automatic method for automatically curing and automatically operating and maintaining is achieved, the problems of hysteresis of manual intervention operation and maintenance and other errors caused by misoperation are solved, manual investment is reduced, and the usability and the safety of the network are improved.
Further, the automatic healing network function body specifically includes: in a core network sub-slice instance, querying the NRF for network function instances of all of the core network sub-slice instances that are currently alive;
and judging the missing network function instances in each core network sub-slice instance, and restarting or awakening the missing network function instances to ensure that the missing network function instances are all registered on the NRF network function, thereby realizing automatic healing of the network function main body.
The beneficial effect of adopting the further scheme is that: according to the scheme, the network function examples of all the currently-alive core network sub-slice examples are inquired through the NRF, the missing network function examples are restarted or awakened, the missing network function examples can be judged through the NRF inquiry, and the missing network function examples are registered on the NRF network function through restarting or awakening, so that the missing network slice examples are guaranteed to keep a survival state.
Further, the expanding the network function body or contracting the network function body to adjust the state of the network slice instance specifically includes: in a core network sub-slice example, monitoring the operation index of a virtual machine or a physical machine bearing the core network sub-slice example, and when the operation index is not less than a preset operation index threshold value, adding a virtual machine and operating a network function example to expand the network function performance; or when the performance index of a core network sub-slice example of a preset network function is monitored, and when the performance index is not smaller than a first preset performance index threshold value, adding or newly building a slice example, and migrating a service to the new slice example to adjust the state of the core network sub-slice example.
The beneficial effect of adopting the further scheme is that: according to the scheme, in the core network sub-slice example, the operation indexes of the virtual machines or the physical machines are monitored, when the operation indexes exceed the preset operation indexes, the network functions are expanded by adding or building a virtual machine, the automatic network function expansion of the network slice example is realized to achieve automatic operation and maintenance, or for performance monitoring of the specific network functions, when the performance indexes are not smaller than a first preset performance index threshold value, the performance is improved by adding or building a network function example, the automatic operation and maintenance of the network slice example is realized, the normal service provision of the network slice is guaranteed, and various resources are reasonably utilized.
Further, the adjusting the state of the network slice instance by the network function extension entity or the network function contraction entity further includes: in the transmission network slicing example, a monitoring point is set at a starting node or an ending node of a transmission network, and when the data traffic of the transmission network slicing example is monitored to be not less than a preset traffic threshold value, if the transmission network slicing example is full soft segmentation, the reserved spectrum is divided into slicing example channels;
if the transmission network slicing example is full hard segmentation, the frequency spectrum is divided again, and the transmission network slicing example is transferred to a new frequency spectrum slicing example channel;
if the transmission network slicing example is the combination of hard slicing and soft slicing, the state of the transmission network slicing example is adjusted according to full soft slicing processing;
the reserved spectrum specifically includes spectrum resources with usage frequencies lower than a preset frequency threshold.
The beneficial effect of adopting the further scheme is that: according to the scheme, the monitoring points are arranged at the initial node or the final node of the transmission network, when the data flow of the transmission network slicing example is monitored to be not less than the preset flow threshold value, the reasonable distribution of the frequency spectrum resources is realized by dividing channels with the requirement of large and high frequency spectrum, so that the automatic operation and maintenance of the transmission network slicing example are achieved, the normal service provision of the network slicing is ensured, and various resources are reasonably utilized.
Further, the adjusting the state of the network slice instance by the network function extension entity or the network function contraction entity further includes: in an access network slice example, monitoring performance indexes of a virtual machine and software, and expanding or migrating a network function example of the access network slice example to adjust the state of the access network slice example when the performance indexes are not less than a second preset performance index threshold value;
or when the detected bandwidth or the signaling amount is not less than the preset bandwidth threshold, adjusting the frequency resource of the corresponding slice instance to adjust the access network slice instance state.
The beneficial effect of adopting the further scheme is that: according to the scheme, the performance indexes of the virtual machine and software are monitored, the bandwidth or signaling amount can be detected by monitoring the inlet and the outlet of the DU, when the threshold is reached through monitoring, the frequency resources of the function instance are expanded or migrated to realize reasonable utilization of the frequency resources so as to achieve automatic operation and maintenance of the access network slice instance, and normal service provision and reasonable utilization of various resources of the network slice are guaranteed.
Another technical solution of the present invention for solving the above technical problems is as follows:
a self-healing and self-operation maintenance system based on network slicing, comprising: the device comprises a monitoring device, an example adjusting device and a network slice example device;
the monitoring device is used for monitoring and judging the state index of the network slice example;
the example adjusting device is used for adjusting the state of the network slice example by automatically healing the network function body, expanding the network function body or contracting the network function body when the state index exceeds a preset threshold value;
the network slice example device is used for providing normal network service by utilizing system resources.
The invention has the beneficial effects that: according to the scheme, the state indexes of the network slice examples are monitored, when the state indexes exceed the preset threshold value, automatic operation and maintenance are carried out through automatically curing the network function main body, expanding the network function main body or contracting the network function main body, normal network service of terminal services is guaranteed, an automatic method for automatically curing and automatically operating and maintaining is achieved, the problems of hysteresis of manual operation and maintenance intervention and other errors caused by misoperation are solved, manual investment is reduced, and usability and safety of the network are improved.
Further, the instance adjusting means is specifically configured to, in a core network subslice instance, query NRFs for network function instances of all of the currently alive core network subslice instances;
and judging the missing network function instances in each core network sub-slice instance, and restarting or awakening the missing network function instances to ensure that the missing network function instances are all registered on the NRF network function, thereby realizing automatic healing of the network function main body.
The beneficial effect of adopting the further scheme is that: according to the scheme, the network function examples of all the currently-alive core network sub-slice examples are inquired through the NRF, the missing network function examples are restarted or awakened, the missing network function examples can be judged through the NRF inquiry, and the missing network function examples are registered on the NRF network function through restarting or awakening, so that the missing network slice examples are guaranteed to keep a survival state.
Further, the instance adjusting device is specifically configured to monitor an operation index of a virtual machine or a physical machine that carries a core network sub-slice instance in the core network sub-slice instance, and when the operation index is not less than a preset operation index threshold, add the virtual machine and operate a network function instance to expand network function performance; or when the performance index of the core network sub-slice example of the preset network function is monitored and is not smaller than a first preset performance index threshold value, adding or newly building the slice example, and migrating the service to the new slice example to adjust the state of the core network sub-slice example.
The beneficial effect of adopting the further scheme is that: according to the scheme, in the core network sub-slice example, the operation indexes of the virtual machines or the physical machines are monitored, when the operation indexes exceed the preset operation indexes, the network functions are expanded by adding or building a virtual machine, the automatic network function expansion of the network slice example is realized to achieve automatic operation and maintenance, or for performance monitoring of the specific network functions, when the performance indexes are not smaller than a first preset performance index threshold value, the performance is improved by adding or building a network function example, the automatic operation and maintenance of the network slice example is realized, the normal service provision of the network slice is guaranteed, and various resources are reasonably utilized.
Further, the instance adjusting device is specifically configured to set a monitoring point at a start node or an end node of a transmission network in a transmission network slicing instance, and when data traffic of the transmission network slicing instance is monitored to be not less than a preset traffic threshold, if the transmission network slicing instance is full soft slicing, partition the reserved spectrum into slicing instance channels;
if the transmission network slice example is full hard segmentation, the frequency spectrum is divided again, and the transmission network slice example is migrated to a new frequency spectrum slice example channel;
if the transmission network slicing example is hard slicing and soft slicing, the state of the transmission network slicing example is adjusted according to full soft slicing processing;
the reserved spectrum specifically includes spectrum resources with usage frequencies lower than a preset frequency threshold.
The beneficial effect of adopting the further scheme is that: according to the scheme, the monitoring points are set at the initial node or the final node of the transmission network, when the data traffic of the transmission network slice example is monitored to be not less than the preset traffic threshold value, the reasonable distribution of the spectrum resources is realized by dividing the channels required by the big and big frequency spectrum, so that the automatic operation and maintenance of the transmission network slice example are achieved, the normal service provision of the network slice is ensured, and various resources are reasonably utilized.
Further, the instance adjusting apparatus is further specifically configured to monitor performance indicators of the virtual machine and the software in an access network slice instance, and when the performance indicators are not less than a second preset performance indicator threshold, expand or migrate a network function instance of the access network slice instance to adjust a state of the access network slice instance;
or when the detected bandwidth or the signaling quantity is not less than the preset bandwidth threshold value, adjusting the frequency resource of the corresponding slice instance to adjust the access network slice instance state.
The beneficial effect of adopting the further scheme is that: according to the scheme, the performance indexes of the virtual machine and software are monitored, the bandwidth or signaling amount can be detected by monitoring the inlet and the outlet of the DU, when the threshold is reached through monitoring, the frequency resources of the function instance are expanded or migrated to realize reasonable utilization of the frequency resources so as to achieve automatic operation and maintenance of the access network slice instance, and normal service provision and reasonable utilization of various resources of the network slice are guaranteed.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic flow chart of a self-healing and self-operation and maintenance method based on network slices according to an embodiment of the present invention;
fig. 2 is a block diagram of a self-healing and self-operation maintenance system based on network slices according to another embodiment of the present invention;
fig. 3 is a structural framework diagram of a self-healing and self-operation maintenance method based on network slicing according to another embodiment of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in fig. 1, a self-healing and self-operation and maintenance method based on network slices provided in an embodiment of the present invention includes: s1, monitoring and judging a state index of a network slice example;
it should be noted that a core network under the 5G SA networking is a distributed application system like a zookeeper cluster mode, and network function instances created by the network slice instance are all registered to the NRF network function after being loaded and started. In the core network sub-slice example, firstly, the network function examples of all the currently-alive network slice examples are inquired from the NRF, so that which network function examples are lacked can be preliminarily judged; secondly, the operation states of all virtual machines or physical machines bearing network slice instances include: monitoring indexes such as CPU, internal memory, IO, storage and the like; finally, performance monitoring for specific network functions, such as: monitoring network functions and performance indexes such as user subscription number of UDM, signaling concurrency of AMF, resident user session volume of SMF, average flow of UPF, forwarding packet and the like;
in the transmission network slice example, a monitoring point is set at the initial node or the end node of forward transmission, intermediate transmission and backward transmission, and the data traffic of each network slice example is monitored in the network transmission;
in the example of access network slicing, monitoring performance indexes of a virtual machine and software on a virtualized CU, and monitoring bandwidth or signaling quantity at an inlet and an outlet of a DU;
s2, when the state index exceeds a preset threshold value, adjusting the state of the network slice example by automatically curing the network function main body, expanding the network function main body or contracting the network function main body; the preset threshold is set according to the actual situation of the enterprise of the slice user, and the threshold is configured into the slice when the slice instance is created, as shown in the automatic monitoring and self-operation and maintenance process of the network slice instance shown in fig. 3, wherein the rule expansion is equivalent to the function instance addition, and the migration is equivalent to the new function instance creation.
It should be noted that, in the core network sub-slice example, when it is determined that a network function example is missing, the missing network function example is restarted or awakened, so that the missing network function example is registered on the NRF network function, and the network function body is automatically cured; when the indexes of CPU, memory, IO, storage and the like reach a threshold value, the functions are expanded by adding a virtual machine and running a network function instance, or the performance is increased by creating a virtual machine with more resources, running the network function instance, downloading the instance of the original virtual machine and destroying the instance; when the performance index of the monitored specific network function exceeds the threshold limit, for the shared network function example, the function performance is improved by adopting an example adding mode, and for the exclusive network function example, the performance can be improved by adopting a mode of newly building an example and transferring the service to the new example.
In the example of transmission network slicing, the transmission network of the network slicing technology can adopt optical fiber transmission, and the slicing technology adopts a mode of three combination forms of soft slicing and hard slicing. Soft slicing means that a plurality of slice instances share one optical spectrum channel; hard slicing is the fixed use of one optical spectral channel for some slice instances. When the data traffic of each network slice instance in the network transmission is monitored to be close to the threshold value, the following processing can be performed, and for the shared slice channel, if the shared slice channel is full soft segmentation, the reserved spectrum is divided into slice instance channels. If the slicing is full hard slicing, the spectrum needs to be re-divided and moved to a new slicing instance channel. If the combination is soft segmentation and hard segmentation, the processing is carried out according to full soft segmentation; for unshared slice channels, typically such slice instance channels all use hard slicing. The spectrum needs to be repartitioned and migrated to a new slice instance channel.
In a certain embodiment, if the total bandwidth of the transmission network channel has reached the upper limit, the traffic bandwidth of the internal slice instance needs to be analyzed and recycled: when the SLA target is guaranteed, namely the user protocol bandwidth is guaranteed, the maximum data throughput can be obtained according to historical data and used as the user protocol bandwidth, and the optical spectrum resources with the long-time usage rate of the shared slice channel lower than the threshold value are recycled to the reserved area.
In the example of the access network slicing, the access network slicing rule is similar to the transmission network slicing, and the frequency resources between the base stations which are not adjacent to each other are divided into: shared resources, dedicated resources, reserved resources, and if the neighboring base stations use the same spectrum, the enhanced transmission mode is also divided. A shared slice example or a slice example insensitive to access transmission is accessed into a shared resource spectrum; the special slice and the high-safety slice example access special frequency resources, and reserved resources are used as temporary enhanced performance. The CU centralized unit and the DU distribution unit are used as two devices of the access network, can control the frequency resources and the data flow direction of the base station, and the CU is used as the centralized unit to process the work of signaling and the like; and monitoring performance indexes of the virtual machine and software on the virtualized CU, and properly extending and migrating the CU function instances when a threshold value is reached, wherein the extending function instances of the virtualized equipment represent adding function instances, and the migrating function instances represent newly adding function instances. The DU serves as a distribution unit to process real-time data. The bandwidth or signaling amount can be detected at the entry and exit of the DU, and after a threshold is reached, the frequency resources of the corresponding slice instance are adjusted, where the frequency resources represent radio spectrum frequency resources. And correspondingly, the reclamation reservation is carried out on the frequency and the resource with low long-term use rate so as to ensure the performance of other slice instances.
And S3, the adjusted network slice example provides normal network service by using system resources.
It should be noted that the normal network service means that the network service related to the network slice example and the performance and efficiency of the carrier and software of the network element function are in good condition.
According to the scheme, the state indexes of the network slice examples are monitored, when the state indexes exceed the preset threshold value, automatic operation and maintenance are carried out through automatically curing the network function main body, expanding the network function main body or contracting the network function main body, normal network service of terminal services is guaranteed, an automatic method for automatically curing and automatically operating and maintaining is achieved, the problems of hysteresis of manual operation and maintenance intervention and other errors caused by misoperation are solved, manual investment is reduced, and usability and safety of the network are improved.
Preferably, in any of the above embodiments, the automatic healing network function body specifically includes: in the core network sub-slice instance, querying the NRF for network function instances of all currently alive core network sub-slice instances;
and judging the missing network function examples in each core network sub-slice example, and restarting or awakening the missing network function examples to ensure that the missing network function examples are registered on the NRF network function, thereby realizing automatic healing of the network function main body.
According to the scheme, the network function examples of all currently-alive core network sub-slice examples are inquired through NRF, the restarting or awakening operation is carried out on the missing network function examples, the missing network function examples can be judged through the NRF inquiry, and the missing network function examples are registered on the NRF network function through restarting or awakening, so that the missing network slice examples are guaranteed to be kept in a survival state.
Preferably, in any of the above embodiments, the expanding the network function body or contracting the network function body to adjust the state of the network slice instance specifically includes: in the core network sub-slice example, monitoring the operation index of a virtual machine or a physical machine bearing the core network sub-slice example, and when the operation index is not less than a preset operation index threshold value, adding the virtual machine and operating a network function example to expand the network function performance; or when the performance index of the core network sub-slice example of the preset network function is monitored and is not smaller than the first preset performance index threshold value, the slice example is added or newly built, and the service is migrated to the new slice example so as to adjust the state of the core network sub-slice example. The preset operation index threshold value is set according to the actual situation of a slicing user enterprise, and the operation index threshold value is configured into the slicing when the slicing instance is created.
According to the scheme, in the core network sub-slicing example, the operation indexes of the virtual machines or the physical machines are monitored, when the operation indexes exceed the preset operation indexes, the virtual machines are added or newly built to expand the network function, the automatic network function expansion of the network slicing example is achieved to achieve automatic operation and maintenance, or for performance monitoring of the specific network function, when the performance indexes are not smaller than a first preset performance index threshold value, the performance is improved by adding or newly building a network function example, the automatic operation and maintenance of the network slicing example is achieved, normal service provision of the network slicing is guaranteed, and various resources are reasonably utilized.
Preferably, in any of the above embodiments, the expanding the network function body or contracting the network function body to adjust the state of the network slice instance further specifically includes: in a transmission network slicing example, a monitoring point is set at a starting node or a terminating node of a transmission network, when the data flow of the transmission network slicing example is monitored to be not less than a preset flow threshold value, if the transmission network slicing example is full soft segmentation, a reserved frequency spectrum is divided into slicing example channels, wherein the preset flow threshold value is set according to the actual situation of a slicing user enterprise, and the flow threshold value is configured into slices when the slicing example is created;
if the transmission network slicing example is full hard segmentation, the frequency spectrum is divided again, and the transmission network slicing example is transferred to a new frequency spectrum slicing example channel;
if the transmission network slicing example is the combination of hard slicing and soft slicing, the state of the transmission network slicing example is adjusted according to full soft slicing processing;
the reserved frequency spectrum specifically comprises frequency spectrum resources with the use frequency lower than a preset frequency threshold, wherein the preset frequency threshold is set according to actual conditions of enterprises of a slice user, and the frequency threshold is configured into a slice when a slice instance is created.
According to the scheme, the monitoring points are set at the initial node or the final node of the transmission network, when the data traffic of the transmission network slice example is monitored to be not less than the preset traffic threshold value, the reasonable distribution of the spectrum resources is realized by dividing the channels required by the big and big frequency spectrum, so that the automatic operation and maintenance of the transmission network slice example are achieved, the normal service provision of the network slice is ensured, and various resources are reasonably utilized.
Preferably, in any of the above embodiments, the expanding the network function body or contracting the network function body to adjust the state of the network slice instance further specifically includes: in the access network slice example, monitoring performance indexes of a virtual machine and software, and when the performance indexes are not smaller than a second preset performance index threshold value, expanding or transferring a network function example of the access network slice example to adjust the state of the access network slice example, wherein the second preset performance index threshold value is set according to the actual situation of a slice user enterprise, and the second preset performance index threshold value is configured into a slice when the slice example is created;
or when the detected bandwidth or signaling quantity is not less than a preset bandwidth threshold value, adjusting the frequency resource of the corresponding slice instance to adjust the state of the access network slice instance, wherein the preset bandwidth threshold value is set according to the actual situation of the enterprise of the slice user, and the bandwidth threshold value is configured into the slice when the slice instance is created.
According to the scheme, the performance indexes of the virtual machine and software are monitored, the bandwidth or the signaling quantity can be detected by monitoring the entrance and the exit of the DU, when the monitoring reaches the threshold value, the frequency resources are reasonably utilized by expanding or migrating the frequency resources of the function example so as to achieve the automatic operation and maintenance of the access network slice example, and the normal service provision and the reasonable utilization of various resources of the network slice are ensured.
In one embodiment, as shown in fig. 2, a self-healing and self-operation and maintenance system based on network slice includes: monitoring means 11, instance adjusting means 12 and network slice instance means 13;
the monitoring device 11 is used for monitoring and judging the status index of the network slice example;
the instance adjusting device 12 is configured to adjust the state of the network slice instance by automatically healing the network function body, expanding the network function body, or contracting the network function body when the state index exceeds a preset threshold;
the network slice instance means 13 is used to provide normal network services using system resources.
According to the scheme, the state indexes of the network slice examples are monitored, when the state indexes exceed the preset threshold value, automatic operation and maintenance are carried out through automatically curing the network function main body, expanding the network function main body or contracting the network function main body, normal network service of terminal services is guaranteed, an automatic method for automatically curing and automatically operating and maintaining is achieved, the problems of hysteresis of manual operation and maintenance intervention and other errors caused by misoperation are solved, manual investment is reduced, and usability and safety of the network are improved.
Preferably, in any of the above embodiments, the instance adjusting means 12 is specifically configured to, in the core network sub-slice instance, query the NRF about network function instances of all currently alive core network sub-slice instances;
and judging the missing network function examples in each core network sub-slice example, and restarting or awakening the missing network function examples to ensure that the missing network function examples are registered on the NRF network function, thereby realizing automatic healing of the network function main body.
According to the scheme, the network function examples of all currently-alive core network sub-slice examples are inquired through the NRF, the missing network function examples are restarted or awakened, the missing network function examples can be judged through the NRF inquiry, and the missing network function examples are registered on the NRF network function through restarting or awakening, so that the missing network slice examples are guaranteed to be kept in a survival state.
Preferably, in any of the above embodiments, the instance adjusting device 12 is specifically configured to monitor an operation index of a virtual machine or a physical machine bearing a core network sub-slice instance in the core network sub-slice instance, and when the operation index is not less than a preset operation index threshold, add the virtual machine and operate the network function instance to expand the network function performance; or when the performance index of the core network sub-slice example of the preset network function is monitored and is not smaller than the first preset performance index threshold value, the slice example is added or newly built, and the service is migrated to the new slice example so as to adjust the state of the core network sub-slice example.
According to the scheme, in the core network sub-slice example, the operation indexes of the virtual machines or the physical machines are monitored, when the operation indexes exceed the preset operation indexes, the network functions are expanded by adding or building a virtual machine, the automatic network function expansion of the network slice example is realized to achieve automatic operation and maintenance, or for performance monitoring of the specific network functions, when the performance indexes are not smaller than a first preset performance index threshold value, the performance is improved by adding or building a network function example, the automatic operation and maintenance of the network slice example is realized, the normal service provision of the network slice is guaranteed, and various resources are reasonably utilized.
Preferably, in any of the above embodiments, the instance adjusting device 12 is further specifically configured to set a monitoring point at a start node or an end node of the transmission network in the transmission network slicing instance, and when the data traffic of the transmission network slicing instance is monitored to be not less than a preset traffic threshold, if the transmission network slicing instance is full soft slicing, divide the reserved spectrum into slicing instance channels;
if the transmission network slicing example is full hard segmentation, the frequency spectrum is divided again, and the transmission network slicing example is transferred to a new frequency spectrum slicing example channel;
if the transmission network slicing example is the combination of hard slicing and soft slicing, the state of the transmission network slicing example is adjusted according to full soft slicing processing;
the reserved spectrum specifically includes spectrum resources with the use frequency lower than a preset frequency threshold.
According to the scheme, the monitoring points are set at the initial node or the final node of the transmission network, when the data traffic of the transmission network slice example is monitored to be not less than the preset traffic threshold value, the reasonable distribution of the spectrum resources is realized by dividing the channels required by the big and big frequency spectrum, so that the automatic operation and maintenance of the transmission network slice example are achieved, the normal service provision of the network slice is ensured, and various resources are reasonably utilized.
Preferably, in any of the above embodiments, the instance adjusting device 12 is further specifically configured to monitor performance indexes of the virtual machine and the software in the access network slice instance, and when the performance index is not less than a second preset performance index threshold, extend or migrate the network function instance of the access network slice instance to adjust the state of the access network slice instance;
or when the detected bandwidth or the signaling quantity is not less than the preset bandwidth threshold value, adjusting the frequency resource of the corresponding slice instance so as to adjust the state of the access network slice instance.
According to the scheme, the performance indexes of the virtual machine and software are monitored, the bandwidth or signaling amount can be detected by monitoring the inlet and the outlet of the DU, when the threshold is reached through monitoring, the frequency resources of the function instance are expanded or migrated to realize reasonable utilization of the frequency resources so as to achieve automatic operation and maintenance of the access network slice instance, and normal service provision and reasonable utilization of various resources of the network slice are guaranteed.
It is understood that some or all of the alternative embodiments described above may be included in some embodiments.
It should be noted that the foregoing embodiments are product embodiments corresponding to the foregoing method embodiments, and for the description of each optional implementation in the product embodiments, reference may be made to the corresponding description in each method embodiment, which is not described herein again.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described method embodiments are merely illustrative, and for example, the division of steps into only one logical functional division may be implemented in practice in another way, for example, multiple steps may be combined or integrated into another step, or some features may be omitted, or not implemented.
The above method, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partly contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A self-healing and self-operation maintenance method based on network slices is characterized by comprising the following steps:
s1, monitoring and judging a state index of a network slice example;
s2, when the state index exceeds a preset threshold value, adjusting the state of the network slice example by automatically curing the network function main body, expanding the network function main body or contracting the network function main body;
s3, the adjusted network slice example provides normal network service by using system resources;
the automatic healing network function body specifically comprises: in a core network subslice instance, querying the NRF for network function instances of all of the core network subslice instances that are currently alive;
judging the missing network function instances in each core network sub-slice instance, and restarting or awakening the missing network function instances to ensure that the missing network function instances are all registered on the NRF network function, thereby realizing automatic healing of the network function main body;
the adjusting the state of the network slice instance by the network function extension agent or the network function contraction agent specifically includes: in a core network sub-slice example, monitoring the operation index of a virtual machine or a physical machine bearing the core network sub-slice example, and when the operation index is not less than a preset operation index threshold value, adding a virtual machine and operating a network function example to expand the network function performance; or when the performance index of the core network sub-slice example of the preset network function is monitored and is not smaller than a first preset performance index threshold value, adding or newly building the slice example, and migrating the service to the new slice example to adjust the state of the core network sub-slice example.
2. The self-healing and self-operation and maintenance method based on network slices according to claim 1, wherein the expanding or contracting the network function entity to adjust the state of the network slice instance further specifically comprises: in a transmission network slicing example, a monitoring point is set at a starting node or a terminating node of a transmission network, and when the data flow of the transmission network slicing example is monitored to be not less than a preset flow threshold value, if the transmission network slicing example is full soft segmentation, a reserved frequency spectrum is divided into slicing example channels;
if the transmission network slicing example is full hard segmentation, the frequency spectrum is divided again, and the transmission network slicing example is transferred to a new frequency spectrum slicing example channel;
if the transmission network slicing example is the combination of hard slicing and soft slicing, the state of the transmission network slicing example is adjusted according to full soft slicing processing;
the reserved spectrum specifically includes spectrum resources with usage frequencies lower than a preset frequency threshold.
3. A self-healing and self-operation and maintenance method based on network slices according to claim 2, wherein the expanding or contracting a network function body to adjust the state of the network slice instance further comprises: in an access network slice example, monitoring performance indexes of a virtual machine and software, and expanding or migrating a network function example of the access network slice example to adjust the state of the access network slice example when the performance indexes are not less than a second preset performance index threshold value;
or when the detected bandwidth or the signaling quantity is not less than the preset bandwidth threshold value, adjusting the frequency resource of the corresponding slice instance to adjust the access network slice instance state.
4. A self-healing and self-operation maintenance system based on network slicing is characterized by comprising: the device comprises a monitoring device, an example adjusting device and a network slice example device;
the monitoring device is used for monitoring and judging the state index of the network slice example;
the example adjusting device is used for adjusting the state of the network slice example by automatically curing the network function body, expanding the network function body or contracting the network function body when the state index exceeds a preset threshold value;
the network slice example device is used for providing normal network service by utilizing system resources;
wherein, the instance adjusting device is specifically configured to, in a core network sub-slice instance, query NRF for network function instances of all currently alive core network sub-slice instances;
judging the missing network function instances in each core network sub-slice instance, and restarting or awakening the missing network function instances to ensure that the missing network function instances are all registered on the NRF network function, thereby realizing automatic healing of the network function main body;
the instance adjusting device is specifically configured to monitor an operation index of a virtual machine or a physical machine bearing a core network sub-slice instance in the core network sub-slice instance, and when the operation index is not less than a preset operation index threshold, add a virtual machine and operate a network function instance to expand network function performance; or when the performance index of a core network sub-slice example of a preset network function is monitored, and when the performance index is not smaller than a first preset performance index threshold value, adding or newly building a slice example, and migrating a service to the new slice example to adjust the state of the core network sub-slice example.
5. The self-healing and self-operation and maintenance system based on network slicing as claimed in claim 4, wherein the instance adjusting device is further specifically configured to set up a monitoring point at a start node or an end node of a transmission network in a slicing instance of the transmission network, and when monitoring that data traffic of the slicing instance of the transmission network is not less than a preset traffic threshold, if the slicing instance of the transmission network is full soft slicing, partition a reserved spectrum into slicing instance channels;
if the transmission network slicing example is full hard segmentation, the frequency spectrum is divided again, and the transmission network slicing example is transferred to a new frequency spectrum slicing example channel;
if the transmission network slicing example is the combination of hard slicing and soft slicing, the state of the transmission network slicing example is adjusted according to full soft slicing processing;
the reserved frequency spectrum specifically includes a frequency spectrum resource of which the use frequency is lower than a preset frequency threshold.
6. The self-healing and self-operation and maintenance system based on network slices according to claim 5, wherein the instance adjusting device is further specifically configured to monitor performance indicators of the virtual machine and the software in an access network slice instance, and when the performance indicators are not less than a second preset performance indicator threshold, extend or migrate the network function instance of the access network slice instance to adjust the state of the access network slice instance;
or when the detected bandwidth or the signaling amount is not less than the preset bandwidth threshold, adjusting the frequency resource of the corresponding slice instance to adjust the access network slice instance state.
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| CN112152855A (en) * | 2020-09-25 | 2020-12-29 | 广州爱浦路网络技术有限公司 | Method for dynamically adjusting network slice instance resources |
| CN115442216B (en) * | 2021-06-04 | 2023-09-05 | ***通信集团浙江有限公司 | Network slice fault self-healing method, device, equipment and computer storage medium |
| CN114726755A (en) * | 2022-02-25 | 2022-07-08 | 中盈优创资讯科技有限公司 | Business slice performance index acquisition monitoring method and device |
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