CN114268546A - Control method and device for network slicing - Google Patents
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Abstract
The disclosure relates to a control method and apparatus for network slicing. The control method for the network slice comprises the following steps: receiving a first access request from a user terminal, wherein the first access request comprises a slice identifier of a network slice to be accessed by the user terminal; responding to the first access request, establishing session links between a user terminal and a plurality of Distribution Units (DUs) of a base station, wherein the DUs have different transmission capacities; acquiring link quality of a session link between a user terminal and each DU; determining flow direction information of the network slice according to a transmission requirement corresponding to the slice identifier, transmission capabilities of a plurality of DUs and link quality of a session link between the user terminal and each DU, wherein the flow direction information comprises the slice identifier of the network slice and the DU identifier of the DU used for transmitting the network slice; and controlling the network slice to transmit in the DU used for transmitting the network slice according to the DU identification in the flow direction information.
Description
Technical Field
The present disclosure relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for controlling network slicing, and a computer-readable storage medium.
Background
The network slicing technology is one of the key technologies of a 5G (5th generation mobile communication) network for providing differentiated services for different application scenarios. Through network slicing, an operator can realize a plurality of virtual and mutually isolated end-to-end sub-networks on a set of 5G physical network infrastructure, and dynamically share various network resources to meet different requirements of different users on network capacity. The core network of 5G carries out better standardized definition on the network slice according to the balance of network efficiency and complexity. With the continuous development of network slicing technology and 5G, how to control the transmission of network slices on the access network side becomes one of the main problems for providing differentiated services to users.
In the related art, a maximum transmission capability that can satisfy the maximum transmission requirement corresponding to all network slices is configured for each DU (Distributed Unit) of a base station.
Disclosure of Invention
The inventor thinks that: the maximum transmission capacity which can meet the maximum transmission requirement corresponding to all network slices is configured for each DU of the base station, so that each DU occupies the most data processing resources, and the resource utilization rate is low. In addition, the transmission adaptation between the network slice and the DU is not considered in the related art, so that the transmission efficiency of the network slice is low.
In view of the above technical problems, the present disclosure provides a solution that can improve resource utilization and transmission efficiency of network slices.
According to a first aspect of the present disclosure, there is provided a control method for network slicing, comprising: receiving a first access request from a user terminal, wherein the first access request comprises a slice identifier of a network slice to be accessed by the user terminal; establishing session links between the user terminal and a plurality of Distribution Units (DUs) of a base station in response to the first access request, the plurality of DUs having different transmission capabilities; acquiring link quality of a session link between the user terminal and each DU; determining flow direction information of the network slice according to a transmission requirement corresponding to the slice identifier, transmission capabilities of the plurality of DUs, and link quality of a session link between the user terminal and each DU, wherein the flow direction information includes the slice identifier of the network slice and the DU identifier of the DU used for transmitting the network slice; and controlling the network slice to transmit in the DU for transmitting the network slice according to the DU identification in the flow direction information.
In some embodiments, determining flow direction information for the network slice comprises: selecting at least one DU with transmission capability meeting the transmission requirement from the plurality of DUs as a candidate DU; selecting a target DU from at least one candidate DU according to the link quality of a session link between the user terminal and each candidate DU as a DU for transmitting the network slice; and determining the flow direction information of the network slice according to the DU identification of the target DU and the slice identification of the network slice.
In some embodiments, the transmission requirement includes a bandwidth requirement and a latency requirement, the transmission capability includes a bandwidth capability and a latency capability, and selecting at least one DU whose transmission capability satisfies the transmission requirement, as the candidate DU includes: selecting at least one DU with bandwidth capability meeting the bandwidth requirement from the plurality of DUs as an initial candidate DU; and selecting at least one initial candidate DU with the delay capability meeting the delay requirement from the at least one initial candidate DU as the candidate DU.
In some embodiments, there are a plurality of candidate DUs, and selecting a target DU includes: and selecting the target DU from the plurality of candidate DUs according to the link quality of the session link between the user terminal and each candidate DU and the strength and weakness relation of the transmission capacities of the plurality of candidate DUs.
In some embodiments, selecting the target DU from the plurality of candidate DUs comprises: selecting at least one candidate DU with strongest transmission capability from the plurality of candidate DUs; and selecting the candidate DU with the highest link quality from the at least one candidate DU with the strongest transmission capability as the target DU.
In some embodiments, the transmission capabilities include bandwidth capabilities and latency capabilities, and selecting at least one candidate DU with the strongest transmission capability includes: selecting at least one candidate DU with the strongest bandwidth capability from the plurality of candidate DUs; and selecting at least one candidate DU with the strongest time delay capability from the at least one candidate DU with the strongest bandwidth capability as the at least one candidate DU with the strongest transmission capability.
In some embodiments, the control method for network slicing further comprises: selecting candidate DUs with link quality exceeding a preset quality threshold from the at least one candidate DU with strongest transmission capability; storing the slice identifier of the network slice, the DU identifier of the candidate DU of which the link quality is greater than or equal to a preset quality threshold value and the corresponding relation of the preset quality threshold value; receiving a second access request from the user terminal, the second access request including a slice identification of the network slice; and selecting a target DU from the candidate DUs with the link quality exceeding a preset quality threshold.
In some embodiments, the control method for network slicing further comprises: and deleting the DU identifications of the candidate DUs with the link quality smaller than the preset quality threshold value in the corresponding relation periodically.
In some embodiments, establishing session links between the user terminal and a plurality of distribution units, DUs, of a base station comprises: carrying out admission control on the user terminal according to the admission control parameters corresponding to the slice identification so as to judge whether the user terminal is allowed to access the network slice; in case the user terminal is allowed to access the network slice, a data radio bearer between the user terminal and a base station is established to establish session links between a plurality of distribution units, DUs, of the user terminal and the base station.
According to a second aspect of the present disclosure, there is provided a control method for network slicing, comprising: the central unit CU performs the control method for network slices described in any of the embodiments above; the resource allocation module performs: before the CU controls the network slice to transmit the DU used for transmitting the network slice, acquiring the available quantity of data processing resources of the DU used for transmitting the network slice and the required quantity of data processing resources required for transmitting the network slice; determining whether the available quantity satisfies the required quantity; and generating a data processing resource allocation strategy aiming at the DU for transmitting the network slice according to the judgment result, and sending the strategy to a data processing resource pool of the DU for execution.
In some embodiments, in case the amount of available data satisfies the required amount, the data processing resource allocation policy is that no data processing resources need to be allocated to the DU for transmitting the network slice; in a case that the available number does not satisfy a required number, the data processing resource allocation policy includes an allocation number of data processing resources allocated to the DU for transmitting the network slice, the allocation number being a difference between the available number and the required number.
According to a third aspect of the present disclosure, there is provided a control apparatus for network slicing, comprising: a receiving module configured to receive a first access request from a user terminal, the first access request including a slice identification of a network slice to be accessed by the user terminal; an establishing module configured to establish session links between the user terminal and a plurality of distribution units, DUs, of a base station in response to the first access request, the plurality of DUs having different transmission capabilities; an obtaining module configured to obtain link quality of a session link between the user terminal and each DU; a determining module configured to determine flow direction information of the network slice according to a transmission requirement corresponding to the slice identity, transmission capabilities of the plurality of DUs, and link quality of a session link between the user terminal and each DU, the flow direction information including the slice identity of the network slice and the DU identity of the DU for transmitting the network slice; and the control module is configured to control the network slice to be transmitted in the DU for transmitting the network slice according to the DU identification in the traffic information.
According to a fourth aspect of the present disclosure, there is provided a control apparatus for network slicing, comprising: a memory; and a processor coupled to the memory, the processor configured to execute the control method for network slicing of any of the above embodiments based on instructions stored in the memory.
According to a fifth aspect of the present disclosure, there is provided a computer-storable medium having stored thereon computer program instructions which, when executed by a processor, implement the control method for network slicing as described in any of the above embodiments.
In the embodiment, the resource utilization rate and the transmission efficiency of the network slices can be improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 is a flow chart illustrating a control method for network slicing according to some embodiments of the present disclosure;
fig. 2 is a block diagram illustrating a control system for network slicing according to some embodiments of the present disclosure;
fig. 3 is a flow diagram illustrating determining flow direction information for a network slice according to some embodiments of the present disclosure;
FIG. 4 is a flow chart illustrating a control method for network slicing according to further embodiments of the present disclosure;
fig. 5 is a block diagram illustrating a control apparatus for network slicing according to some embodiments of the present disclosure;
FIG. 6 is a block diagram illustrating a control apparatus for network slicing according to further embodiments of the present disclosure;
FIG. 7 is a block diagram illustrating a computer system for implementing some embodiments of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: 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 disclosure 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.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
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.
The control method for network slicing according to some embodiments of the present disclosure will be described in detail below with reference to fig. 1 and 2.
Fig. 1 is a flow chart illustrating a control method for network slicing according to some embodiments of the present disclosure.
Fig. 2 is a block diagram illustrating a control system for network slicing according to some embodiments of the present disclosure.
As shown in fig. 1, the control method for network slicing includes: step S110, receiving a first access request from a user terminal; step S130, establishing a session link between a plurality of DUs of the user terminal and the base station; step S150, obtaining the link quality of the session link between the user terminal and each DU; step S170, determining the flow information of the network slice; and step S190, controlling the network slice to transmit in the DU for transmitting the network slice. The above steps S110 to S190 are performed by, for example, a CU (Central Unit) in the base station.
In step S110, a first access request is received from a user terminal. The first access request comprises a slice identification of a network slice to be accessed by the user terminal.
Taking fig. 2 as an example, slice control module 2011 in CU 201 of base station 20 receives the first access request from user terminal 22. For example, the first access request includes a slice identification a of the network slice to be accessed by the user terminal 22. A User terminal is also called a User Equipment (UE). The slice control module may also be called a slice management module.
In step S130, in response to the first access request, session links between the plurality of DUs of the user terminal and the base station are established. The multiple DUs have different transmission capabilities. In this embodiment, different DUs occupy different data processing resources by configuring different transmission capabilities for the plurality of DUs, so that the resource utilization rate can be improved.
For example, the plurality of DUs may be configured as multi-standard, multi-band, and multi-antenna. For example, DU 21A in fig. 2 supports a 5G NR (New Radio, New standard) low band, DU 21B supports a 5G NR high band, and DU21C supports WIFI (Wireless Fidelity, Wireless local area network). Each of DU 21A and DU 21B includes an RLC (Radio Link Control) layer and a MAC (Medium Access Control) layer. For example, the plurality of DUs may further include a DU supporting LTE (Long Term Evolution).
In some embodiments, admission control is performed on the user terminal according to the admission control parameter corresponding to the slice identifier to determine whether the user terminal is allowed to access the network slice; and establishes a Data Radio Bearers (DRBs) between the user terminal and the base station to establish session links between the plurality of distribution units DU of the user terminal and the base station, in case the user terminal is allowed to access the network slice. For example, the admission control parameters include a barring or configuration barring factor, and a barring time.
Taking fig. 2 as an example, the slice control module 2011 performs admission control on the ue 22 according to the admission control parameter corresponding to the slice identifier a after receiving the first access request. In case the user terminal 22 is allowed to access network slice a, a data radio bearer between the user terminal 22 and the base station 20 is established, thereby establishing a session link between the user terminal 22 and DU 21A, DU 21B and DU 21C.
For example, the user terminal 22 and the DU 21A, DU 21B, DU21C perform session connection respectively through a Remote Radio Unit (RRU) 23A, a Remote Radio Unit 23B, and a Remote Radio Unit 23C. For example, the radio remote unit 23C is an Access Point (AP), i.e., a WIFI node.
In step S150, the link quality of the session link between the user terminal and each DU is acquired.
Taking fig. 2 as an example, the slice control module 2011 obtains the link quality of the session link between the user terminal 22 and the DU 21A, DU 21B and DU 21C. For example, uplink channel reference signal measurement is performed by DU 21A, DU 21B and DU21C, respectively, and link quality of the session link between user terminal 22 and DU 21A, DU 21B and DU21C is obtained. In some embodiments, the number of losses of communication packets may be used to determine link quality. The greater the number of packets lost, the lower the link quality.
In step S170, flow direction information of the network slice is determined according to the transmission requirement corresponding to the slice identity, the transmission capabilities of the plurality of DUs, and the link quality of the session link between the user terminal and each DU. The flow direction information includes slice identification of the network slice and DU identification for transmitting the DU for the network slice.
Taking fig. 2 as an example, the slice control module 2011 determines the flow direction information of the network slice a according to the transmission requirement corresponding to the slice identifier a, the transmission capability of the DU 21B, the transmission capability of the DU21C, and the link quality of the session link between the user terminal 22 and the DU 21A, DU 21B and the DU 21C.
In some embodiments, slice control module 2011 retrieves a transmission requirement corresponding to slice identifier a from the memory of CU 201. For example, after the core network is divided into a plurality of network slices according to different service types, a slice identifier is allocated to each network slice. Different slice identities correspond to different transmission requirements. CU 201 pre-stores the slice identification and corresponding transmission requirements in memory. In some embodiments, the different traffic types may be traffic types for different vertical applications.
In this embodiment, a plurality of DUs may also satisfy the transmission requirements of different network slices, and enhance the transmission adaptability between the network slices and the DUs, so that the transmission efficiency of the network slices may be improved, and the centralized control and the optimized utilization of the air interface resource DUs are realized. In addition, the flow direction information of the network slice is determined according to a plurality of factors such as transmission requirements, transmission capacity and link quality, so that the accuracy of determining the flow direction information of the network slice can be improved, and the transmission efficiency of the network slice is improved.
Determining flow information for a network slice may be accomplished, for example, in the manner shown in fig. 3.
Fig. 3 is a flow diagram illustrating determining flow information for a network slice according to some embodiments of the present disclosure.
As shown in fig. 3, determining the flow direction information of the network slice includes steps S171 to S173.
In step S171, at least one DU having a transmission capability satisfying the transmission requirement is selected from the plurality of DUs as a candidate DU.
In some embodiments, the transmission requirements include bandwidth requirements and latency requirements. The transmission capabilities include bandwidth capabilities and latency capabilities. Bandwidth requirements refer to the bandwidth required for transmission of a network slice. Latency requirements refer to the maximum latency that a network slice can tolerate for transmission. Bandwidth capability refers to the transmission bandwidth that the DU can currently provide. The delay capability refers to the transmission delay that the DU can currently satisfy.
For example, the above step S171 is implemented as follows: selecting at least one DU with bandwidth capability meeting bandwidth requirements from a plurality of DUs as an initial candidate DU; and selecting at least one initial candidate DU with the delay capability meeting the delay requirement from the at least one initial candidate DU as the candidate DU.
In step S172, a target DU is selected from the at least one candidate DU as a DU for transport network slicing according to the link quality of the session link between the user terminal and each candidate DU.
Taking the above-mentioned plurality of candidate DUs as an example, the target DU may be selected from the plurality of candidate DUs according to the strength relationship between the link quality of the session link between the user terminal and each candidate DU and the transmission capabilities of the plurality of candidate DUs.
For example, at least one candidate DU with the strongest transmission capability is selected from the plurality of candidate DUs, and the candidate DU with the highest link quality is selected from the at least one candidate DU with the strongest transmission capability as the target DU. In some embodiments, the target DU is DU 21A in fig. 2.
Taking the transmission capability including the bandwidth capability and the delay capability as an example, the at least one candidate DU with the strongest transmission capability may be obtained as follows: and selecting at least one candidate DU with the strongest bandwidth capability from the plurality of candidate DUs, and further selecting at least one candidate DU with the strongest time delay capability from the at least one candidate DU with the strongest bandwidth capability as at least one candidate DU with the strongest transmission capability. For example, the larger the available bandwidth, the greater the bandwidth capability. The shorter the delay that can be met, the stronger the delay capability.
In step S173, flow direction information of the network slice is determined from the DU flag of the target DU and the slice flag of the network slice. Taking the determined target DU as DU 21A in fig. 2 as an example, the flow information of network slice a is "a + 21A", a is the slice id of the network slice, and 21A is the DU id corresponding to the DU for transmitting the network slice a.
Returning to fig. 1, in step S190, the network slice is controlled to transmit in the DU for transmitting the network slice according to the DU identity in the determined flow direction information. For example, control network slice a is transmitted in DU 21A. Those skilled in the art should understand that after the core network is divided into a plurality of network slices, the plurality of network slices will carry a slice identifier and send the slice identifier to a PDCP (Packet Data Convergence Protocol) entity 2012 of the CU 201 in fig. 2.
In some embodiments, the control method for network slicing further comprises the steps of:
firstly, selecting candidate DUs with link quality exceeding a preset quality threshold from at least one candidate DU with strongest transmission capability;
secondly, storing the corresponding relation between the slice identification of the network slice, the DU identification of the candidate DU of which the link quality is greater than or equal to a preset quality threshold and the preset quality threshold;
then, receiving a second access request from the user terminal, wherein the second access request comprises the same slice identifier of the network slice as the first access request and is different in time;
and finally, selecting a target DU from the candidate DUs with the link quality exceeding a preset quality threshold. The selection process is similar to the aforementioned process of selecting the target DU, and is not described herein again.
In the above embodiment, by storing the correspondence between the slice identifier of the network slice, the DU identifier of the candidate DU whose link quality is greater than or equal to the preset quality threshold, and the preset quality threshold, the efficiency of selecting the target DU may be further improved.
In some embodiments, the DU identities of the candidate DUs with link quality less than the preset quality threshold in the stored correspondence may also be periodically deleted. By periodically updating the correspondence, the accuracy and efficiency of selecting the target DU can be improved. For example, the period is set to T. T is a positive number.
Fig. 4 is a flow chart illustrating a control method for network slicing according to further embodiments of the present disclosure.
FIG. 4 differs from FIG. 1 in that FIG. 4 shows steps S181-S184 of generating a data processing resource allocation policy of further embodiments. Only the differences between fig. 5 and fig. 1 will be described below, and the same parts will not be described again. Steps S181-S184 located between steps S170-S190 are performed by the resource allocation module 241 of fig. 2. For example, steps S181-S184 may be performed by the resource allocation module 241 of the network management platform 24. The resource allocation module may also be called a resource management module. The central control unit CU performs steps S110 to S170, step S190.
Step S181 is performed before the CU controls the network slice to transmit the DU for transmitting the network slice. In step S181, the resource allocation module acquires the available number of data processing resources for transmitting the DU for the network slice and the required number of data processing resources required for transmitting the network slice.
Taking fig. 2 as an example, the resource allocation module 241 of the network management platform 24 obtains the available number of data processing resources of the DU 21A from the DU 21A for transmitting the network slice a, and obtains the required number of data processing resources required for transmitting the network slice a from the slice control module 2011. Slice control module 2011 may obtain the required number of network slices a from a table of correspondence between slice identifiers and required numbers of network slices stored in advance in the memory of CU 201.
In step S182, the resource allocation module determines whether the available number satisfies the required number.
Taking fig. 2 as an example, the resource allocation module 241 of the network management platform 24 determines whether the available number is greater than or equal to the required number.
In step S183, the resource allocation module generates a data processing resource allocation policy for the DU for the transport network slice according to the determination result. For example, in case the amount of available data meets the required amount, the data processing resource allocation policy is that there is no need to allocate data processing resources to the DUs used for the transport network slice. In case the available number does not satisfy the required number, the data processing resource allocation policy comprises an allocation number of data processing resources allocated to the DUs for the transport network slice, the allocation number being a difference between the available number and the required number.
In step S184, the resource allocation module sends the generated data processing resource allocation policy to the data processing resource pool of the DU for execution. The plurality of DUs of the base station may share the data processing resources of the data processing resource pool.
In the above embodiment, the data processing resources may include virtual resources such as virtual resource 251, virtual resource 252, and virtual resource 253 in the data processing resource pool 25 in fig. 2. The virtual resource may be a computing resource such as a container, a virtual machine, a server, a Central Processing Unit (CPU), a memory, and an accelerator. The accelerator is, for example, an ASIC (Application Specific Integrated Circuit) accelerator, an FPGA (Field Programmable Gate Array) accelerator, or a GPU (Graphics Processing Unit) accelerator.
In the above embodiment, centralized control of data resources is realized by reallocating the data processing resources of the DUs, so that the resource utilization rate of network convergence can be effectively improved, and the infrastructure cost is saved. The control method for the network slice is realized in a software mode, so that the iteration cost can be reduced.
Fig. 5 is a block diagram illustrating a control apparatus for network slicing according to some embodiments of the present disclosure.
As shown in fig. 5, it comprises a receiving module 51, a creating module 52, an obtaining module 53, a determining module 54 and a control module 55.
The receiving module 51 is configured to receive a first access request from a user terminal, for example, to perform step S110 shown in fig. 1. The first access request comprises a slice identification of a network slice to be accessed by the user terminal.
The establishing module 52 is configured to establish session links between the plurality of distribution units DU of the user terminal and the base station in response to the first access request, for example, to perform step S130 as shown in fig. 1. The multiple DUs have different transmission capabilities.
The obtaining module 53 is configured to obtain the link quality of the session link between the user terminal and each DU, for example, execute step S150 shown in fig. 1.
The determining module 54 is configured to determine flow direction information of the network slice according to the transmission requirement corresponding to the slice identity, the transmission capabilities of the plurality of DUs and the link quality of the session link between the user terminal and each DU, for example, perform step S170 as shown in fig. 1. The flow direction information includes slice identification of the network slice and DU identification for transmitting the DU for the network slice.
The control module 55 is configured to control the network slice to be transmitted in the DU for transmitting the network slice according to the DU id in the determined flow direction information, for example, to execute step S190 shown in fig. 1.
Fig. 6 is a block diagram illustrating a control apparatus for network slicing according to further embodiments of the present disclosure.
As shown in fig. 6, the control device 6 for network slicing includes a memory 61; and a processor 62 coupled to the memory 61. The memory 61 is used for storing instructions for executing the corresponding embodiment of the control method for network slices. The processor 62 is configured to execute the control method for network slicing in any of the embodiments of the present disclosure based on instructions stored in the memory 61.
FIG. 7 is a block diagram illustrating a computer system for implementing some embodiments of the present disclosure.
As shown in FIG. 7, the computer system 70 may be embodied in the form of a general purpose computing device. Computer system 70 includes a memory 710, a processor 720, and a bus 700 that connects the various system components.
The memory 710 may include, for example, system memory, non-volatile storage media, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), and other programs. The system memory may include volatile storage media such as Random Access Memory (RAM) and/or cache memory. The non-volatile storage medium stores, for instance, instructions to perform corresponding embodiments of at least one of the control methods for network slicing. Non-volatile storage media include, but are not limited to, magnetic disk storage, optical storage, flash memory, and the like.
The computer system 70 may also include an input-output interface 730, a network interface 740, a storage interface 750, and the like. These interfaces 730, 740, 750, as well as the memory 710 and the processor 720, may be connected by a bus 700. The input/output interface 730 may provide a connection interface for input/output devices such as a display, a mouse, and a keyboard. The network interface 740 provides a connection interface for various networking devices. The storage interface 750 provides a connection interface for external storage devices such as a floppy disk, a usb disk, and an SD card.
Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable apparatus to produce a machine, such that the execution of the instructions by the processor results in an apparatus that implements the functions specified in the flowchart and/or block diagram block or blocks.
These computer-readable program instructions may also be stored in a computer-readable memory that can direct a computer to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart and/or block diagram block or blocks.
The present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
By the control method and device for the network slice and the computer-readable storage medium in the embodiments, the resource utilization rate and the transmission efficiency of the network slice can be improved.
So far, the control method and apparatus for network slicing, computer-readable storage medium according to the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
Claims (14)
1. A control method for network slicing, comprising:
receiving a first access request from a user terminal, wherein the first access request comprises a slice identifier of a network slice to be accessed by the user terminal;
establishing session links between the user terminal and a plurality of Distribution Units (DUs) of a base station in response to the first access request, the plurality of DUs having different transmission capabilities;
acquiring link quality of a session link between the user terminal and each DU;
determining flow direction information of the network slice according to a transmission requirement corresponding to the slice identifier, transmission capabilities of the plurality of DUs, and link quality of a session link between the user terminal and each DU, wherein the flow direction information includes the slice identifier of the network slice and the DU identifier of the DU used for transmitting the network slice;
and controlling the network slice to transmit in the DU for transmitting the network slice according to the DU identification in the flow direction information.
2. The control method for network slices of claim 1, wherein determining flow direction information for the network slice comprises:
selecting at least one DU with transmission capability meeting the transmission requirement from the plurality of DUs as a candidate DU;
selecting a target DU from at least one candidate DU according to the link quality of a session link between the user terminal and each candidate DU as a DU for transmitting the network slice;
and determining the flow direction information of the network slice according to the DU identification of the target DU and the slice identification of the network slice.
3. The control method for network slicing of claim 2, wherein the transmission requirements include bandwidth requirements and latency requirements, the transmission capabilities include bandwidth capabilities and latency capabilities, and selecting at least one DU with a transmission capability that satisfies the transmission requirements as a candidate DU comprises:
selecting at least one DU with bandwidth capability meeting the bandwidth requirement from the plurality of DUs as an initial candidate DU;
and selecting at least one initial candidate DU with the delay capability meeting the delay requirement from the at least one initial candidate DU as the candidate DU.
4. The control method for network slicing as defined in claim 2, wherein there are a plurality of the candidate DUs, and selecting a target DU comprises:
and selecting the target DU from the plurality of candidate DUs according to the link quality of the session link between the user terminal and each candidate DU and the strength and weakness relation of the transmission capacities of the plurality of candidate DUs.
5. The control method for network slicing of claim 4, wherein selecting the target DU from the plurality of candidate DUs comprises:
selecting at least one candidate DU with strongest transmission capability from the plurality of candidate DUs;
and selecting the candidate DU with the highest link quality from the at least one candidate DU with the strongest transmission capability as the target DU.
6. The control method for network slicing of claim 5, wherein the transmission capabilities comprise bandwidth capabilities and latency capabilities, and selecting at least one candidate DU with the strongest transmission capability comprises:
selecting at least one candidate DU with the strongest bandwidth capability from the plurality of candidate DUs;
and selecting at least one candidate DU with the strongest time delay capability from the at least one candidate DU with the strongest bandwidth capability as the at least one candidate DU with the strongest transmission capability.
7. The control method for network slicing of claim 5, further comprising:
selecting candidate DUs with link quality exceeding a preset quality threshold from the at least one candidate DU with strongest transmission capability;
storing the slice identifier of the network slice, the DU identifier of the candidate DU of which the link quality is greater than or equal to a preset quality threshold value and the corresponding relation of the preset quality threshold value;
receiving a second access request from the user terminal, the second access request including a slice identification of the network slice;
and selecting a target DU from the candidate DUs with the link quality exceeding a preset quality threshold.
8. The control method for network slicing of claim 7, further comprising:
and deleting the DU identifications of the candidate DUs with the link quality smaller than the preset quality threshold value in the corresponding relation periodically.
9. The control method for network slicing of claim 1, wherein establishing session links between the user terminal and a plurality of distribution units, DUs, of a base station comprises:
carrying out admission control on the user terminal according to the admission control parameters corresponding to the slice identification so as to judge whether the user terminal is allowed to access the network slice;
in case the user terminal is allowed to access the network slice, a data radio bearer between the user terminal and a base station is established to establish session links between a plurality of distribution units, DUs, of the user terminal and the base station.
10. A control method for network slicing, comprising:
the central unit CU performs the control method for network slices according to any of claims 1-9;
the resource allocation module performs:
before the CU controls the network slice to transmit the DU used for transmitting the network slice, acquiring the available quantity of data processing resources of the DU used for transmitting the network slice and the required quantity of data processing resources required for transmitting the network slice;
determining whether the available quantity satisfies the required quantity;
and generating a data processing resource allocation strategy aiming at the DU for transmitting the network slice according to the judgment result, and sending the strategy to a data processing resource pool of the DU for execution.
11. The control method for network slices of claim 10, wherein,
when the available data quantity meets the required quantity, the data processing resource allocation strategy is to allocate data processing resources to the DU for transmitting the network slice without the need;
in a case that the available number does not satisfy a required number, the data processing resource allocation policy includes an allocation number of data processing resources allocated to the DU for transmitting the network slice, the allocation number being a difference between the available number and the required number.
12. A control device for network slicing, comprising:
a receiving module configured to receive a first access request from a user terminal, the first access request including a slice identification of a network slice to be accessed by the user terminal;
an establishing module configured to establish session links between the user terminal and a plurality of distribution units, DUs, of a base station in response to the first access request, the plurality of DUs having different transmission capabilities;
an obtaining module configured to obtain link quality of a session link between the user terminal and each DU;
a determining module configured to determine flow direction information of the network slice according to a transmission requirement corresponding to the slice identity, transmission capabilities of the plurality of DUs, and link quality of a session link between the user terminal and each DU, the flow direction information including the slice identity of the network slice and the DU identity of the DU for transmitting the network slice;
and the control module is configured to control the network slice to be transmitted in the DU for transmitting the network slice according to the DU identification in the flow direction information.
13. A control device for network slicing, comprising:
a memory; and
a processor coupled to the memory, the processor configured to execute the control method for network slices of any of claims 1 to 11 based on instructions stored in the memory.
14. A computer-storable medium having stored thereon computer program instructions which, when executed by a processor, implement the control method for network slicing as claimed in any one of claims 1 to 11.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107889155A (en) * | 2016-09-30 | 2018-04-06 | 中兴通讯股份有限公司 | A kind of management method and device of network section |
| CN109842910A (en) * | 2017-11-28 | 2019-06-04 | 中国移动通信有限公司研究院 | A kind of processing method and access network elements of network slice |
| CN110958133A (en) * | 2019-11-01 | 2020-04-03 | 北京邮电大学 | Network slice mapping method, device, server and storage medium |
| WO2020146409A1 (en) * | 2019-01-09 | 2020-07-16 | Apple Inc. | Signaling methods for semi-static resource configurations in integrated access and backhaul |
-
2020
- 2020-09-16 CN CN202010976102.2A patent/CN114268546B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107889155A (en) * | 2016-09-30 | 2018-04-06 | 中兴通讯股份有限公司 | A kind of management method and device of network section |
| CN109842910A (en) * | 2017-11-28 | 2019-06-04 | 中国移动通信有限公司研究院 | A kind of processing method and access network elements of network slice |
| WO2020146409A1 (en) * | 2019-01-09 | 2020-07-16 | Apple Inc. | Signaling methods for semi-static resource configurations in integrated access and backhaul |
| CN110958133A (en) * | 2019-11-01 | 2020-04-03 | 北京邮电大学 | Network slice mapping method, device, server and storage medium |
Non-Patent Citations (1)
| Title |
|---|
| ""28554_CR0054r1_5G_SLICE_ePA-KPI_(Rel-16)_S5-204482 Rel-16 CR Fixing KPIs"", 3GPP TSG_SA\\TSG_SA, 9 September 2020 (2020-09-09) * |
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