CN108235434B - Method, device and system for managing network slice wireless spectrum resources - Google Patents
Method, device and system for managing network slice wireless spectrum resources Download PDFInfo
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- CN108235434B CN108235434B CN201611194639.3A CN201611194639A CN108235434B CN 108235434 B CN108235434 B CN 108235434B CN 201611194639 A CN201611194639 A CN 201611194639A CN 108235434 B CN108235434 B CN 108235434B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
Abstract
The invention discloses a method, a device and a system for managing network slice wireless spectrum resources. The method comprises the following steps: acquiring the demand information of each slice; acquiring signing information of each slice; slice resource scheduling is carried out according to the demand information and the subscription information of each slice; and sending the physical resource blocks or sub-band serial numbers which can be used by each slice to the corresponding slice. The invention solves the problems of management and scheduling of wireless spectrum resources of a plurality of network slices, thereby realizing or supporting the network slice function; the base station side is ensured to support the network slicing function so as to ensure the fairness of resource scheduling among slices.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a method, an apparatus, and a system for managing network slice radio spectrum resources.
Background
Network slicing has become one of the key technologies of 5G, and currently, research and standardization work of network slicing technology is mainly focused on the core network side. However, only end-to-end network slicing is done, so that network slicing can be really realized. How to implement network slicing on the access network (base station) side or how to support the network slicing function is still an open problem.
Compared with virtualized computing, storage and network resources, wireless spectrum resources are more scarce and precious, how to realize sharing and isolation of spectrum resources among different network slices, and the method improves the spectrum utilization rate while ensuring the independence of the slices, and is the key point for realizing the network slice function on the access network side.
The MAC layer scheduling algorithm ensures the scheduling fairness among users to a certain extent. However, with the introduction of network slices, there is no guarantee of "fairness" in scheduling between slices, since the MAC cannot distinguish between slices. Because the spectrum resources are limited, when a slice has a large demand for the spectrum (for example, a slice with high definition video service as a main component), more spectrum resources are inevitably occupied, so that the resource usage of other slices is affected, and even necessary spectrum resources cannot be allocated.
Disclosure of Invention
In view of the above technical problems, the present invention provides a method and a system for managing network slice wireless spectrum resources, a base station, and a base station slice resource manager, so as to solve the management and scheduling problems of wireless spectrum resources of multiple network slices, thereby implementing or supporting a network slice function.
According to an aspect of the present invention, there is provided a network slice wireless spectrum resource management method, including:
acquiring the demand information of each slice;
acquiring signing information of each slice;
slice resource scheduling is carried out according to the demand information and the subscription information of each slice;
and sending the physical resource blocks or sub-band serial numbers which can be used by each slice to the corresponding slice.
In one embodiment of the invention, the method further comprises:
and sending the spectrum resource condition distributed according to each slice request in a preset time period to a slice request resource anti-spoofing detector, so that the slice request resource anti-spoofing detector compares the actual use condition and the resource distribution condition of each slice and returns a forbidden or limited scheduling identifier for the slice.
In an embodiment of the present invention, the performing slice resource scheduling according to the requirement information and the subscription information of each slice includes:
acquiring forbidden or restricted scheduling identifiers aiming at k slices, which are returned by a slice request resource anti-spoofing detector, wherein k is more than or equal to 0 and less than or equal to N, and N is the total number of the slices;
and carrying out slice resource scheduling according to the requirement information and the subscription information of each slice and the forbidden or limited scheduling identifiers aiming at the k slices.
In an embodiment of the present invention, the performing slice resource scheduling according to the requirement information and the subscription information of each slice includes:
and scheduling the slice resources according to at least one of a fairness principle, a priority principle and a polling principle.
In an embodiment of the present invention, the acquiring requirement information of each slice includes:
and acquiring the demand information of each slice from each slice, wherein the demand information comprises cache information and channel information.
In an embodiment of the present invention, the acquiring subscription information of each slice includes:
and acquiring the signing information of each slice from a signing information storage device, wherein the signing information storage device is positioned in a core network, a management orchestrator (MANO) or a slice manager, and the signing information comprises at least one of slice type, resource signing proportion and slice priority.
According to another aspect of the present invention, there is provided a base station slice resource manager, including a demand information acquisition module, a subscription information acquisition module, a resource scheduling module, and a resource allocation module, wherein:
the demand information acquisition module is used for acquiring demand information of each slice;
the contract information acquisition module is used for acquiring contract information of each slice;
the resource scheduling module is used for scheduling slice resources according to the demand information and the subscription information of each slice;
and the resource allocation module is used for sending the physical resource blocks or the sub-band serial numbers which can be used by the slices to the corresponding slices.
In an embodiment of the present invention, the base station slice resource manager further includes a resource allocation status sending module, where:
and the resource allocation condition sending module is used for sending the spectrum resource conditions allocated according to the slice requests in a preset time period to the slice request resource anti-spoofing detector, so that the slice request resource anti-spoofing detector compares the actual use condition and the resource allocation condition of each slice and returns a forbidden or limited scheduling identifier for the slice.
In one embodiment of the invention, the resource scheduling module is used for acquiring forbidden or restricted scheduling identifiers for k slices returned by the slice request resource anti-spoofing detector, wherein k is greater than or equal to 0 and less than or equal to N, and N is the total number of slices; and slice resource scheduling is performed according to the requirement information and the subscription information of each slice and the forbidden or limited scheduling identifiers aiming at the k slices.
In an embodiment of the present invention, the resource scheduling module is configured to perform slice resource scheduling according to at least one of a fairness principle, a priority principle, and a round robin principle.
In an embodiment of the present invention, the demand information acquiring module is configured to acquire demand information of each slice from each slice, where the demand information includes cache information and channel information.
In one embodiment of the present invention, the subscription information obtaining module is configured to obtain subscription information of each slice from a subscription information storage device, where the subscription information storage device is located in a core network, a management orchestrator MANO, or a slice manager, and the subscription information includes at least one of a slice type, a resource subscription ratio, and a slice priority.
According to another aspect of the present invention, there is provided a base station comprising a base station slice resource manager as described in any of the above embodiments.
In one embodiment of the invention, the base station further comprises a slice request resource anti-spoofing detector, wherein:
the slice request resource anti-spoofing detector comprises a resource allocation condition receiving module, a comparing module and an identifier sending module, wherein:
a resource allocation condition receiving module, configured to receive a spectrum resource condition allocated according to each slice request within a predetermined time period sent by a base station slice resource manager;
the comparison module is used for comparing the actual use condition and the resource allocation condition of each slice and determining whether to limit or forbid the allocation of the resource to the slice within a period of time;
and the identifier sending module is used for returning the forbidden or restricted scheduling identifiers aiming at the k slices to the base station slice resource manager, wherein k is more than or equal to 0 and less than or equal to N, and N is the total number of the slices.
In an embodiment of the present invention, the comparing module is configured to determine whether a ratio of an actual usage situation of a slice to a resource allocation situation is smaller than a predetermined threshold; and if the ratio of the actual use condition of the slice to the resource allocation condition is smaller than a preset threshold value, limiting or forbidding the resource allocation to the slice within a period of time.
According to another aspect of the present invention, there is provided a network slice wireless spectrum resource management system, including the base station according to any of the above embodiments.
In one embodiment of the present invention, the system further includes a subscription information storage device, wherein:
the subscription information storage device is positioned in a core network, a management orchestrator MANO or a slicing manager.
The invention solves the problems of management and scheduling of wireless spectrum resources of a plurality of network slices, thereby realizing or supporting the network slice function; the base station side is ensured to support the network slicing function so as to ensure the fairness of resource scheduling among slices.
Drawings
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a diagram illustrating an embodiment of a network slice wireless spectrum resource management system according to the invention.
Fig. 2 is a diagram illustrating a base station slice resource manager according to a first embodiment of the present invention.
Fig. 3 is a diagram illustrating a second embodiment of a slice resource manager of a base station according to the invention.
Fig. 4 is a schematic diagram of a slice request resource anti-spoofing detector in one embodiment of the invention.
Fig. 5 is a diagram illustrating a network slice radio spectrum resource management method according to a first embodiment of the present invention.
Fig. 6 is a diagram illustrating a second embodiment of a method for managing network slice radio spectrum resources according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a diagram illustrating an embodiment of a network slice wireless spectrum resource management system according to the invention. As shown in fig. 1, the system for managing wireless spectrum resources in a network slice on a base station side includes a base station 100 and a subscription information storage device 200, wherein:
the base station 100 may comprise a base station slice resource manager 110, wherein:
and the base station slice resource manager 110 is configured to manage and schedule allocation of uplink and downlink radio spectrum resources between slices. The base station slice resource manager 110 performs slice resource scheduling according to the slice contracted resource proportion or according to the principles of fairness, priority and the like. The invention does not limit the specific slice scheduling algorithm.
A contract information storage device 200 for storing contract information (for example, a slice type, a level, a bandwidth contract ratio, etc.) of each slice; and provides the subscription information of each slice to the base station slice resource manager 110, so that the base station slice resource manager 110 performs slice resource scheduling according to the subscription information of each slice.
In one embodiment of the present invention, as shown in fig. 1, the subscription information storage device 200 may be located in a core network, a MANO (Management and organization), or a separate slice manager.
Based on the base station side network slice wireless spectrum resource management system or the base station provided by the embodiment of the invention, the problems of management and scheduling of wireless spectrum resources of a plurality of network slices are solved, so that a network slice function can be realized or supported.
The embodiment of the invention solves the problem that 5G supports network slices on the base station side, and realizes the scheduling capability of spectrum resources among slices.
Slice scheduling is performed on top of (or outside) slices, and overall resource partitioning and scheduling between slices is performed without affecting scheduling algorithms of users inside the slices. Slice scheduling also does not increase complexity as the number of users increases.
In one embodiment of the present invention, as shown in fig. 1, the base station 100 may further include a slice request resource anti-spoofing detector 120, wherein:
a slice request resource anti-spoofing detector 120, configured to receive a spectrum resource condition allocated according to each slice request within a predetermined time period sent by the base station slice resource manager 110; the actual usage and resource allocation for each slice are compared and forbidden or restricted scheduling identifiers for k slices are returned to the base station slice resource manager 110, where k is greater than or equal to 0 and less than or equal to N, where N is the total number of slices.
The above embodiment of the invention can be used for preventing a slice from acquiring more wireless resources through the misrepresentation requirement, so that the normal requests of other slices cannot be guaranteed. Thus, the "fairness" of resource scheduling among slices can be ensured. The above embodiments of the present invention can prevent some slices from falsely requesting resources, thereby causing the rights and interests of other slices to be damaged.
In the embodiment of fig. 1, two modules, namely, a slice request resource anti-spoofing detector 120 and a base station slice resource manager 110, are introduced into a base station, which inevitably brings corresponding interfaces, and the present invention designs and defines three newly introduced interfaces.
Interface 1: the bs slice resource manager 110 obtains the requirement information (e.g. downlink buffer or uplink request) of each slice through the interface, and sends the PRB or subband sequence number usable by each slice to each slice through the interface.
And (3) interface 2: the base station slice resource manager 110 obtains subscription information (e.g., slice type, class, bandwidth subscription ratio, etc.) for each slice through the interface, which may be stored in the core network, the MANO, or a separate slice manager.
And interface 3: the base station slice resource manager 110 sends the spectrum resource conditions allocated according to each slice request within a period of time to the slice request resource anti-spoofing detector 120 through the interface, the slice request resource anti-spoofing detector 120 compares with the actual use condition, if the actual use condition/allocation condition of a certain module is less than the threshold value, the base station slice resource manager 110 is notified through the interface, and the allocation of resources to the slice is limited or prohibited within a period of time.
Slicing: the N slices in the embodiment of fig. 1 may be actual slices or logical slices. Scheduling of users within a slice is still done within each slice.
The three interface design is further described below.
1. Information model passed by interface 1 (the interface needs to perform information interaction once per TTI):
A) information acquisition (slice → slice resource manager): the direction is what information the slice manager needs to obtain from the slice for slice scheduling
Table 1 below lists the contents of the uplink and downlink interactive information.
TABLE 1
Since whether a slice has a communication requirement and the size of the requirement are necessary factors for determining how much resources are allocated to the slice, "caching information" is a mandatory option.
Descending: the base station can directly acquire the downlink data information of each slice, so that the method is relatively simple. Only the size of the downlink buffer of each slice at the current moment needs to be fed back.
Ascending: need to be considered from two dimensions
Scheduled users: and informing the slice of how much data needs to be uploaded by reporting a Buffer Size Report (BSR), and after summarizing the BSRs of all users, acquiring the approximate range of 'data to be transmitted uplink' of the slice.
Unscheduled users: the PRB resources cannot be obtained, and only a request can be applied by reporting a SR (scheduling request), and a slice allocates a small amount of PRBs to the user to report a BSR.
The present invention also defines the levels of the downlink buffer and the uplink total request size as shown in tables 2 and 3. Here, considering the asymmetric rows of the uplink and downlink rates, the levels of the uplink and downlink are defined separately.
TABLE 2
| Serial number | Downlink buffer queue (BS)) Range (Mbytes) |
| 0 | BS＝0 |
| 1 | 0<BS<＝x1 |
| 2 | x1<BS<＝x2 |
| … | … |
| 2N_DL-1 | BS>xN DL |
TABLE 3
Although Channel information (e.g., a downlink CQI (Channel Quality Indicator) and an uplink SRS (Sounding Reference Signal) shown in table 1) can better optimize a slice resource scheduling result theoretically, in practice, if a slice manager needs to consider information of each user in each slice when scheduling slice resources, scheduling speed and scheduling algorithm complexity are affected. Therefore, the above-described embodiment of the present invention sets "channel information" as an option. The introduction can be considered in some special demanding scenarios, but requires the cooperation of corresponding scheduling algorithms.
B) Slice scheduling (slice resource manager → slice): the direction is that the slice manager sends resource scheduling information to the slice
After slice scheduling, the slice manager sends "number of PRBs or subbands schedulable in uplink" and "number of PRBs or subbands schedulable in downlink" to each slice, respectively, as shown in table 4.
TABLE 4
2. The information model passed by interface 2 is shown in table 5 (the interface only needs to be initialized or communicate when the slice information is changed):
TABLE 5
3. Information model transferred by the interface 3 (the interface communication frequency may be determined according to specific situations, and may be n hours, 1 day, 1 week or even 1 month):
slice resource manager → anti-spoofing detector: cumulative allocation of uplink/downlink request resources for all slices is shown in table 6.
TABLE 6
Anti-spoofing detector → slicer resource manager: the identifier of the slice i (the slice with the slice number i) is limited or the identifier of the slice i is forbidden, wherein, i is more than or equal to 1 and less than or equal to N, and N is the total number of the slices.
The embodiment of the invention solves the problem that 5G supports network slices on the base station side, and realizes the scheduling capability of spectrum resources among slices.
The above embodiment of the present invention provides a system for scheduling network slices of a base station, which introduces two network elements, defines data models of three interfaces, and does not design and specify a specific scheduling algorithm. Slice scheduling is performed on top of (or outside) slices, and overall resource partitioning and scheduling between slices is performed without affecting scheduling algorithms of users inside the slices. The above-described embodiments of the present invention also do not increase in complexity as the number of users increases.
The embodiment of the invention only needs to add 2 network elements on the base station side, and the introduced three interface data interaction amount is small.
The structure and function of the base station slice resource manager 110 and the slice request resource spoofing prevention detector 120 introduced in the above embodiments of the present invention are explained below by specific embodiments.
Fig. 2 is a diagram illustrating a base station slice resource manager according to a first embodiment of the present invention. As shown in fig. 2, the base station slice resource manager 110 of the embodiment of fig. 1 may include a requirement information obtaining module 111, a subscription information obtaining module 112, a resource scheduling module 113, and a resource allocating module 114, where:
and a requirement information obtaining module 111, configured to obtain requirement information of each slice.
In an embodiment of the present invention, the requirement information obtaining module 111 may be configured to obtain requirement information of each slice through the interface 1, where the requirement information includes cache information and channel information.
A contract information obtaining module 112, configured to obtain contract information of each slice.
In one embodiment of the present invention, the subscription information obtaining module 112 may be configured to obtain the subscription information of each slice from the subscription information storage device 200 through the interface 2, wherein the subscription information storage device 200 is located in a core network, a MANO or a slice manager, and the subscription information includes at least one of a slice type, a resource subscription ratio and a slice priority.
And the resource scheduling module 113 is configured to perform slice resource scheduling according to the requirement information and the subscription information of each slice.
In an embodiment of the present invention, the resource scheduling module 113 may be configured to perform slice resource scheduling according to at least one of scheduling algorithms such as a fairness principle, a priority principle, and a round robin principle.
And the resource allocation module 114 is configured to send, through the interface 1, the physical resource blocks or the sub-band sequence numbers that can be used by each slice to the corresponding slice.
The base station slice resource manager provided by the embodiment of the invention solves the problems of management and scheduling of wireless spectrum resources of a plurality of network slices, thereby realizing or supporting the network slice function.
The embodiment of the invention solves the problem that 5G supports network slices on the base station side, and realizes the scheduling capability of spectrum resources among slices.
Slice scheduling is performed on top of (or outside) slices, and overall resource partitioning and scheduling between slices can be performed without affecting scheduling algorithms of users inside the slices. Slice scheduling also does not increase complexity as the number of users increases.
Fig. 3 is a diagram illustrating a second embodiment of a slice resource manager of a base station according to the invention. Compared with the embodiment shown in fig. 2, in the embodiment shown in fig. 3, the base station slice resource manager 110 may further include a resource allocation condition sending module 115, where:
a resource allocation situation sending module 115, configured to send the spectrum resource situation allocated according to each slice request within a predetermined time period to the slice request resource spoofing prevention detector 120, so that the slice request resource spoofing prevention detector 120 compares the actual usage situation and the resource allocation situation of each slice, and returns a prohibited or restricted scheduling identifier for the slice.
The resource scheduling module 113 may be configured to obtain prohibited or restricted scheduling identifiers for k slices sent by the slice request resource spoofing detector 120, where k is greater than or equal to 0 and less than or equal to N, N is the total number of slices, and k is the number of slices that need to be prohibited or restricted; and slice resource scheduling is performed according to the requirement information and the subscription information of each slice and the forbidden or limited scheduling identifiers aiming at the k slices.
The above embodiment of the invention can be used for preventing a slice from acquiring more wireless resources through the misrepresentation requirement, so that the normal requests of other slices cannot be guaranteed. Thus, the "fairness" of resource scheduling among slices can be ensured. The above embodiments of the present invention can prevent some slices from falsely requesting resources, thereby causing the rights and interests of other slices to be damaged.
Fig. 4 is a schematic diagram of a slice request resource anti-spoofing detector in one embodiment of the invention. As shown in fig. 4, the slice request resource anti-spoofing detector 120 of the embodiment of fig. 1 may include a resource allocation case receiving module 121, a comparing module 122, and an identifier transmitting module 123, wherein:
a resource allocation status receiving module 121, configured to receive spectrum resource statuses allocated according to each slice request within a predetermined time period sent by the base station slice resource manager 110.
A comparing module 122, configured to compare the actual usage of each slice with the resource allocation, and determine whether to limit or prohibit the allocation of resources to the slice for a period of time.
In an embodiment of the present invention, the comparing module 122 may be configured to determine whether a ratio of an actual usage condition of a slice to a resource allocation condition is smaller than a predetermined threshold; and if the ratio of the actual use condition of the slice to the resource allocation condition is smaller than a preset threshold value, limiting or forbidding the resource allocation to the slice within a period of time.
An identifier sending module 123, configured to return a prohibited or restricted scheduling identifier for k slices to the base station slice resource manager 110, where k is greater than or equal to 0 and less than or equal to N, N is the total number of slices, and k is the number of slices that need to be prohibited or restricted.
The above embodiment of the invention can be used for preventing a slice from acquiring more wireless resources through the misrepresentation requirement, so that the normal requests of other slices cannot be guaranteed. Thus, the "fairness" of resource scheduling among slices can be ensured. The above embodiments of the present invention can prevent some slices from falsely requesting resources, thereby causing the rights and interests of other slices to be damaged.
Fig. 5 is a diagram illustrating a network slice radio spectrum resource management method according to a first embodiment of the present invention. Preferably, this embodiment can be performed by the base station slice resource manager of the present invention. As shown in fig. 5, the method may include:
and step 51, acquiring the requirement information of each slice in real time. Wherein the demand information is acquired frequently, even every millisecond.
In one embodiment of the present invention, step 51 may comprise: the demand information of each slice is acquired from each slice through the interface 1, wherein the demand information may include cache information and channel information.
And step 52, acquiring the contract information of each slice at preset time intervals. The subscription information is basically unchanged and can be acquired only once in 1 year; or when the subscription information changes, the subscription information storage device 200 transmits the information to the base station slice resource manager 110 to update the information. The subscription information update frequency is low.
In one embodiment of the present invention, step 52 may comprise: the subscription information of each slice is acquired from a subscription information storage device 200 through an interface 2, wherein the subscription information storage device 200 is located in a core network, a MANO or a slice manager, and the subscription information comprises at least one of slice type, resource subscription proportion and slice priority.
And step 53, performing slice resource scheduling according to the requirement information and the subscription information of each slice.
In one embodiment of the present invention, step 53 may comprise: and scheduling the slice resources according to at least one of scheduling algorithms such as a fairness principle, a priority principle, a polling principle and the like.
And step 54, sending the physical resource blocks or sub-band serial numbers which can be used by each slice to the corresponding slice.
Based on the method for managing the wireless spectrum resources of the network slices at the base station side provided by the embodiment of the invention, the problems of management and scheduling of the wireless spectrum resources of a plurality of network slices are solved, so that the network slice function can be realized or supported.
The embodiment of the invention solves the problem that 5G supports network slices on the base station side, and realizes the scheduling capability of spectrum resources among slices.
Slice scheduling is performed on top of (or outside) slices, and overall resource partitioning and scheduling between slices can be performed without affecting scheduling algorithms of users inside the slices. Slice scheduling also does not increase complexity as the number of users increases.
Fig. 6 is a diagram illustrating a second embodiment of a method for managing network slice radio spectrum resources according to the present invention. Preferably, this embodiment can be performed by the base station slice resource manager of the present invention. As shown in fig. 6, the method may include:
And step 63, acquiring forbidden or restricted scheduling identifiers aiming at k slices, which are sent by the slice request resource anti-spoofing detector 120 through the interface 3, wherein k is more than or equal to 0 and less than or equal to N, N is the total number of slices, and k is the number of slices needing to be forbidden or restricted.
In one embodiment of the present invention, step 63 may comprise:
step 631 sends the allocated spectrum resource situation according to each slice request within a predetermined time period to the slice request resource spoofing detector 120, so that the slice request resource spoofing detector 120 compares the actual usage situation and the resource allocation situation of each slice and returns a prohibited or restricted scheduling identifier for the slice.
At step 632, the prohibited or restricted scheduling identifiers for k slices by the slice request resource spoofing detector 120 are obtained.
And step 64, carrying out slice resource scheduling according to the requirement information and the subscription information of each slice and the forbidden or limited scheduling identifiers aiming at the k slices.
And step 65, sending the physical resource blocks or sub-band serial numbers which can be used by each slice to the corresponding slice.
The above embodiment of the invention can be used for preventing a slice from acquiring more wireless resources through the misrepresentation requirement, so that the normal requests of other slices cannot be guaranteed. Thus, the "fairness" of resource scheduling among slices can be ensured. The above embodiments of the present invention can prevent some slices from falsely requesting resources, thereby causing the rights and interests of other slices to be damaged.
The embodiment of the invention solves the problem that 5G supports network slices on the base station side, and realizes the scheduling capability of spectrum resources among slices.
The above embodiment of the present invention provides a method for scheduling network slices of a base station, which introduces two network elements, defines data models of three interfaces, and does not design and specify a specific scheduling algorithm. Slice scheduling is performed on top of (or outside) slices, and overall resource partitioning and scheduling between slices is performed without affecting scheduling algorithms of users inside the slices. The above-described embodiments of the present invention also do not increase in complexity as the number of users increases.
The embodiment of the invention only needs to add 2 network elements on the base station side, and the introduced three interface data interaction amount is small.
The base station slice resource manager 110 and the slice request resource anti-spoofing detector 120 described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof for performing the functions described herein.
Thus far, the present invention has been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed 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, where 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.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (11)
1. A method for network slice wireless spectrum resource management, comprising:
acquiring the demand information of each slice;
acquiring signing information of each slice;
slice resource scheduling is carried out according to the demand information and the subscription information of each slice;
sending the physical resource blocks or sub-band serial numbers which can be used by each slice to the corresponding slice;
the slice resource scheduling according to the demand information and the subscription information of each slice includes:
acquiring forbidden or restricted scheduling identifiers aiming at k slices, which are returned by a slice request resource anti-spoofing detector, wherein k is more than or equal to 0 and less than or equal to N, and N is the total number of the slices;
and carrying out slice resource scheduling according to the requirement information and the subscription information of each slice and the forbidden or limited scheduling identifiers aiming at the k slices.
2. The method of claim 1, further comprising:
and sending the spectrum resource condition distributed according to each slice request in a preset time period to a slice request resource anti-spoofing detector, so that the slice request resource anti-spoofing detector compares the actual use condition and the resource distribution condition of each slice and returns a forbidden or limited scheduling identifier for the slice.
3. The method according to claim 1 or 2,
the acquiring the requirement information of each slice includes:
acquiring demand information of each slice from each slice, wherein the demand information comprises cache information and channel information;
and/or the presence of a gas in the gas,
the acquiring the subscription information of each slice includes:
and acquiring the signing information of each slice from a signing information storage device, wherein the signing information storage device is positioned in a core network, a management orchestrator (MANO) or a slice manager, and the signing information comprises at least one of slice type, resource signing proportion and slice priority.
4. The utility model provides a base station section resource manager which characterized in that, includes demand information acquisition module, sign information acquisition module, resource scheduling module and resource allocation module, wherein:
the demand information acquisition module is used for acquiring demand information of each slice;
the contract information acquisition module is used for acquiring contract information of each slice;
the resource scheduling module is used for scheduling slice resources according to the demand information and the subscription information of each slice;
the resource allocation module is used for sending the physical resource blocks or sub-band serial numbers which can be used by each slice to the corresponding slice;
the resource scheduling module is used for acquiring forbidden or restricted scheduling identifiers aiming at k slices, which are returned by the slice request resource anti-spoofing detector, wherein k is more than or equal to 0 and less than or equal to N, and N is the total number of the slices; and slice resource scheduling is performed according to the requirement information and the subscription information of each slice and the forbidden or limited scheduling identifiers aiming at the k slices.
5. The base station slice resource manager of claim 4, further comprising a resource allocation case sending module, wherein:
and the resource allocation condition sending module is used for sending the spectrum resource conditions allocated according to the slice requests in a preset time period to the slice request resource anti-spoofing detector, so that the slice request resource anti-spoofing detector compares the actual use condition and the resource allocation condition of each slice and returns a forbidden or limited scheduling identifier for the slice.
6. The base station slice resource manager of claim 4 or 5,
the demand information acquisition module is used for acquiring demand information of each slice from each slice, wherein the demand information comprises cache information and channel information;
and/or the presence of a gas in the gas,
the contract information acquisition module is used for acquiring contract information of each slice from a contract information storage device, wherein the contract information storage device is positioned in a core network, a management orchestrator (MANO) or a slice manager, and the contract information comprises at least one of slice type, resource contract proportion and slice priority.
7. A base station comprising a base station slice resource manager according to any of claims 4-6.
8. The base station of claim 7, further comprising a slice request resource spoofing detector, wherein:
the slice request resource anti-spoofing detector comprises a resource allocation condition receiving module, a comparing module and an identifier sending module, wherein:
a resource allocation condition receiving module, configured to receive a spectrum resource condition allocated according to each slice request within a predetermined time period sent by a base station slice resource manager;
the comparison module is used for comparing the actual use condition and the resource allocation condition of each slice and determining whether to limit or forbid the allocation of the resource to the slice within a period of time;
and the identifier sending module is used for returning the forbidden or restricted scheduling identifiers aiming at the k slices to the base station slice resource manager, wherein k is more than or equal to 0 and less than or equal to N, and N is the total number of the slices.
9. The base station of claim 8,
the comparison module is used for judging whether the ratio of the actual use condition of one slice to the resource allocation condition is smaller than a preset threshold value or not; and if the ratio of the actual use condition of the slice to the resource allocation condition is smaller than a preset threshold value, limiting or forbidding the resource allocation to the slice within a period of time.
10. A network slice wireless spectrum resource management system comprising the base station of any one of claims 7-9.
11. The system of claim 10, further comprising a subscription information storage device, wherein:
the subscription information storage device is positioned in a core network, a management orchestrator MANO or a slicing manager.
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| CN109361431B (en) * | 2018-12-13 | 2020-10-27 | 中国科学院计算技术研究所 | Slice scheduling method and system |
| CN111866953B (en) * | 2019-04-26 | 2023-05-09 | 中国移动通信有限公司研究院 | Network resource allocation method, device and storage medium |
| WO2020217465A1 (en) * | 2019-04-26 | 2020-10-29 | 三菱電機株式会社 | Network controller |
| TWI740713B (en) | 2020-11-11 | 2021-09-21 | 財團法人工業技術研究院 | Resource management method, resource management system and workload scheduling apparatus for network slicing |
| CN112770399B (en) * | 2020-12-31 | 2023-05-02 | 联想(北京)有限公司 | Wireless resource scheduling method, device and equipment |
| CN112867162B (en) * | 2021-01-25 | 2023-04-07 | 中国联合网络通信集团有限公司 | Slice resource allocation method and device |
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