CN108462596B

CN108462596B - SLA decomposition method, equipment and system

Info

Publication number: CN108462596B
Application number: CN201710093367.6A
Authority: CN
Inventors: 胡星星; 许瑞岳; 李延; 王君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-02-21
Filing date: 2017-02-21
Publication date: 2021-02-23
Anticipated expiration: 2037-02-21
Also published as: CN108462596A; WO2018153289A1

Abstract

The embodiment of the application provides a service level agreement SLA decomposition method, which comprises the following steps: determining an SLA index of a slice by a cross-domain slice management device, wherein the slice comprises at least two domains; the cross-domain slice management equipment selects a target index decomposition result meeting the SLA index from candidate index decomposition results, wherein the target index decomposition result comprises a domain decomposition result of each of the at least two domains; and the cross-domain slice management equipment sends the domain decomposition result of each of the at least two domains to the corresponding domain management equipment. The method can enable the configuration of the slice to be established according to the SLA index, and further enable the established slice to more accurately meet the requirements of the tenant.

Description

SLA decomposition method, equipment and system

Technical Field

The present application relates to the field of communications, and in particular, to a method, an apparatus, and a system for decomposing a Service Level Agreement (Service Level Agreement SLA).

Background

With the development of communication technology, the age of the fifth Generation mobile communication network (5 th-Generation, 5G) has been silent. The 5G network has three application scenarios: enhanced Mobile Broadband (eMBB), Ultra-high Reliable and Low Latency Communication (uRLLC), and Massive Machine Type Communication (mMTC). The service characteristics corresponding to the three application scenarios are different, and have different requirements in the aspects of mobility, charging, security, policy control, time delay, reliability and the like. Therefore, how to enable the services corresponding to the three application scenarios to jointly operate on a physical network is an important technical problem. In order to solve the above problem, a slice may be established according to the requirements of tenants, where a tenant is a demand subject of a service, and one tenant may perform one or more services, and the slice is a part of a physical network, that is, one physical network may be divided into multiple slices, and the same or similar services that are required are mapped into the same slice, and different services are required to be mapped into different slices. At present, the requirements of the tenants can be expressed by using SLA indexes, but how to apply the SLA indexes to the process of establishing the slices is an unsolved problem.

Disclosure of Invention

The application provides an SLA decomposition method, an SLA decomposition device and an SLA decomposition system, which can apply SLA indexes to a slicing establishment process.

In a first aspect, a service level agreement, SLA, decomposition method is provided. The cross-domain slice management device first determines the SLA metric for the slice. After the SLA index is determined, the cross-domain slice management device selects a target index decomposition result satisfying the SLA index from the candidate index decomposition results. Wherein the slice includes at least two domains, and the target index decomposition result includes a domain decomposition result of each of the at least two domains. And finally, the cross-domain slice management device sends the domain decomposition result of each of the at least two domains to the corresponding domain management device. After receiving the domain division decomposition result corresponding to the domain, the domain division management device may allocate resources to the slice according to the domain division decomposition result, thereby establishing the slice.

In some possible embodiments of the first aspect, the SLA metric comprises at least one of: battery life index, regional distribution index, signal coverage index, time delay index, transmission success rate index and capacity index.

In some possible implementations of the first aspect, the domain division result is an SLA division index or domain division configuration information, where the domain division configuration information is used to configure the domain division management device.

In some possible implementations of the first aspect, when the domain division result is domain division configuration information, the selecting, by the cross-domain slice management device, a target index decomposition result that satisfies the SLA index from candidate index decomposition results includes:

the cross-domain slice management device selects a preliminary index decomposition result from the candidate index decomposition results, wherein the preliminary index decomposition result comprises a preliminary decomposition result of each of the at least two domains;

the cross-domain slice management equipment calculates to obtain a comprehensive result, wherein the comprehensive result is obtained by calculating the preliminary decomposition result of each domain of the at least two domains by using a cross-domain calculation formula;

when the integrated result meets the SLA index, the cross-domain slice management device determines that the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains;

when the preliminary decomposition result of each of the at least two domains is within the respective actual capability range of the at least two domains, the cross-domain slice management device maps the preliminary index decomposition result to the target index decomposition result.

In some possible implementations of the first aspect, the cross-domain slice management device determines that the preliminary decomposition result of each of the at least two domains is within the actual capability range of each of the at least two domains, and the method further includes:

the cross-domain slice management device calculates an actual capability of each of the at least two sub-domains.

In some possible implementations of the first aspect, the cross-domain slice management device calculating the actual capability of each of the at least two sub-domains comprises:

when the SLA metric comprises the battery life metric, the cross-domain slice management device calculates an actual battery life capability for each of the at least two sub-domains from battery life parameters, wherein the battery life parameters comprise at least one of: a flow of receiving or sending data by the terminal device, a time required by the terminal device to receive or send each message, a reference signal receiving power or reference signal receiving quality distribution diagram of a network where the simulation data or the terminal device is located, data packet sizes and retransmission times corresponding to different reference signal receiving powers or reference signal receiving qualities, and relevant parameters of a prolonged discontinuous receiving or power saving mode;

when the SLA index comprises the area distribution index, the cross-domain slice management equipment calculates the actual area distribution capacity of each of the at least two sub-domains according to an area distribution parameter, wherein the area distribution parameter at least comprises a base station distribution map;

when the SLA metric comprises the signal coverage metric, the cross-domain slice management device calculates an actual signal coverage capability of each of the at least two sub-domains according to a signal coverage distribution parameter, wherein the signal coverage distribution parameter comprises at least: simulation data or a reference signal received power or a reference signal received quality distribution diagram of a network in which the terminal device is located;

when the SLA metric includes the latency metric, the cross-domain slice management device calculates an actual latency capability of each of the at least two sub-domains according to a latency parameter, where the latency parameter includes at least one of: current resource utilization, simulation data or reference signal received power or reference signal received quality profiles in a real-time network;

when the SLA index includes the transmission success rate index, the cross-domain slice management device calculates an actual transmission success rate capability of each of the at least two sub-domains according to a transmission success rate parameter, where the transmission success rate parameter includes at least one of: the service success rate of a real-time network in a cell, simulation data or reference signal receiving power or a reference signal receiving quality distribution diagram of a network where terminal equipment is located, and the service success rate of each domain;

when the SLA metric comprises the capacity metric, the cross-domain slice management device calculates an actual capacity capability of each of the at least two sub-domains from a capacity parameter, wherein the capacity parameter comprises at least one of: the resource rate of the residual resource blocks of the cell, the receiving power of the reference signals of the network where the simulation data or the terminal equipment is located or the receiving quality distribution diagram of the reference signals, and the residual service capacity.

In some possible implementations of the first aspect, when the domain decomposition result is an SLA index, the cross-domain slice management device selecting a target index decomposition result that satisfies the SLA index from a plurality of candidate index decomposition results includes:

and when the comprehensive result meets the SLA index, the cross-domain slice management equipment maps the preliminary index decomposition result into the target index decomposition result.

In some possible implementations of the first aspect, before the cross-domain slice management device selects a target index decomposition result satisfying the SLA index from among candidate index decomposition results, the method further includes:

the cross-domain slice management device receives domain indication information of the slice, wherein the domain indication information is used for indicating the type of one or more domains of the at least two domains.

In some possible implementations of the first aspect, the domain indication information further includes the cross-domain calculation formula.

In some possible embodiments of the first aspect, when the SLA metric comprises the battery life metric, the at least two sub-domains comprise: the cross-domain calculation formula comprises a minimum value formula;

when the SLA metric comprises the region distribution metric, the at least two sub-regions comprise: the access network is divided into domains;

when the SLA metric comprises the signal coverage metric, the at least two sub-domains comprise: the access network is divided into domains;

when the SLA metric comprises the latency metric, the at least two domains comprise: the cross-domain calculation formula comprises a summation formula;

when the SLA metric comprises the transmission success rate metric, the at least two sub-domains comprise: the cross-domain calculation formula comprises a product formula;

when the SLA metric comprises the capacity metric, the at least two sub-domains comprise: the cross-domain calculation formula comprises a minimum value formula.

In some possible implementations of the first aspect, the receiving, by the cross-domain slice management device, the domain indication information of the slice comprises:

the cross-domain slice management device receives domain indication information of the slice from a service management device.

the cross-domain slice management device receives domain indication information of the slice from a slice design management device.

In some possible implementations of the first aspect, the selecting, by the cross-domain slice management device, a target index decomposition result from candidate index decomposition results according to the SLA index includes:

the cross-domain slice management equipment determines the priority level of the candidate index decomposition result according to a priority level strategy;

and the cross-domain slice management equipment selects a target index decomposition result meeting the SLA index from the candidate index decomposition results according to the priority level of the candidate index decomposition results.

In some possible implementations of the first aspect, the priority policy is pre-stored in the cross-domain slice management device; or,

the priority level strategy is sent to the cross-domain slice management equipment by the service management equipment; or,

the priority level policy is sent to the cross-domain slice management device by the slice design management device.

In a second aspect, a network device is provided, which includes: the system comprises a determining module, a selecting module and a sending module, wherein the determining module is used for determining the SLA index of a slice, and the slice comprises at least two domains; the selection module is used for selecting a target index decomposition result meeting the SLA index from candidate index decomposition results, wherein the target index decomposition result comprises a domain decomposition result of each of the at least two domains; the sending module is configured to send the domain splitting result of each of the at least two domains to the corresponding domain management device.

In some possible embodiments of the second aspect, the SLA metric comprises at least one of: battery life index, regional distribution index, signal coverage index, time delay index, transmission success rate index and capacity index.

In some possible embodiments of the second aspect, the domain division result is an SLA (service level agreement) index or domain division configuration information, where the domain division configuration information is used to configure the domain division management device.

In some possible embodiments of the second aspect, the selection module is configured to select a preliminary index decomposition result from the candidate index decomposition results, wherein the preliminary index decomposition result includes a preliminary decomposition result of each of the at least two domains; calculating to obtain a comprehensive result, wherein the comprehensive result is obtained by calculating the preliminary decomposition result of each of the at least two domains by using a cross-domain calculation formula, and when the comprehensive result meets the SLA index, determining that the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains; and when the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains, mapping the preliminary index decomposition result to the target index decomposition result.

In some possible embodiments of the second aspect, the apparatus further comprises a calculation module for calculating an actual capability of each of the at least two subdomains.

In some possible implementations of the second aspect, the calculation module is to:

when the SLA metric comprises the battery life metric, calculating an actual battery life capability for each of the at least two domains from battery life parameters, wherein the battery life parameters comprise at least one of: a flow of receiving or sending data by the terminal device, a time required by the terminal device to receive or send each message, a reference signal receiving power or reference signal receiving quality distribution diagram of a network where the simulation data or the terminal device is located, data packet sizes and retransmission times corresponding to different reference signal receiving powers or reference signal receiving qualities, and relevant parameters of a prolonged discontinuous receiving or power saving mode;

when the SLA index comprises the regional distribution index, calculating the actual regional distribution capacity of each of the at least two sub-domains according to regional distribution parameters, wherein the regional distribution parameters at least comprise a base station distribution map;

when the SLA metric comprises the signal coverage metric, calculating an actual signal coverage capability of each of the at least two sub-domains from signal coverage distribution parameters, wherein the signal coverage distribution parameters comprise at least: simulation data or a reference signal received power or a reference signal received quality distribution diagram of a network in which the terminal device is located;

when the SLA index comprises the delay index, calculating an actual delay capability of each of the at least two domains according to a delay parameter, wherein the delay parameter comprises at least one of: current resource utilization, simulation data or reference signal received power or reference signal received quality profiles in a real-time network;

when the SLA index comprises the transmission success rate index, calculating an actual transmission success rate capability of each of the at least two sub-domains according to a transmission success rate parameter, wherein the transmission success rate parameter comprises at least one of: the service success rate of a real-time network in a cell, simulation data or reference signal receiving power or a reference signal receiving quality distribution diagram of a network where terminal equipment is located, and the service success rate of each domain;

when the SLA metric comprises the capacity metric, calculating an actual capacity capability of each of the at least two domains from a capacity parameter, wherein the capacity parameter comprises at least one of: the resource rate of the residual resource blocks of the cell, the receiving power of the reference signals of the network where the simulation data or the terminal equipment is located or the receiving quality distribution diagram of the reference signals, and the residual service capacity.

In some possible embodiments of the second aspect, the selection module is for

Selecting a preliminary index decomposition result from the candidate index decomposition results, wherein the preliminary index decomposition result comprises a preliminary decomposition result of each of the at least two domains; calculating to obtain a comprehensive result, wherein the comprehensive result is obtained by calculating the preliminary decomposition result of each domain of the at least two domains by using a cross-domain calculation formula; and when the comprehensive result meets the SLA index, mapping the preliminary index decomposition result to the target index decomposition result.

In some possible implementations of the second aspect, the apparatus further includes a receiving module configured to receive domain indication information of the slice, wherein the domain indication information is used to indicate a type of one or more of the at least two partitions.

In some possible embodiments of the second aspect, the domain indication information further includes the cross-domain calculation formula.

In some possible embodiments of the second aspect, when the SLA metric comprises the battery life metric, the at least two sub-domains comprise: the cross-domain calculation formula comprises a minimum value formula;

In some possible embodiments of the second aspect, the receiving module is configured to receive the domain indication information of the slice from a traffic management device.

In some possible embodiments of the second aspect, the receiving module is configured to receive the domain indication information of the slice from a slice design management apparatus.

In some possible embodiments of the second aspect, the selection module is configured to determine a priority of the candidate index decomposition result according to a priority policy; and selecting a target index decomposition result meeting the SLA index from the candidate index decomposition results according to the priority level of the candidate index decomposition results.

In some possible embodiments of the second aspect, the priority policy is pre-stored in the cross-domain slice management device; or,

In a third aspect, a network device is provided, including: a memory, and a processor, a communication module coupled with the memory, wherein: the communication module is configured to transmit or receive externally transmitted data, the memory is configured to store implementation codes of the method described in the first aspect, and the processor is configured to execute the program codes stored in the memory, that is, execute the method described in the first aspect.

In a fourth aspect, there is provided a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the first aspect described above.

In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect described above.

In a sixth aspect, there is provided a communication system comprising: a cross-domain slice management device and at least two sub-domain management devices, wherein the cross-domain slice management device is connected to the at least two sub-domain management devices respectively, and the cross-domain slice management device is configured to execute the method described in the first aspect.

In a seventh aspect, a service level agreement SLA decomposition method is provided, including: receiving, by a cross-domain slice management device, domain indication information of a slice, wherein the slice includes at least two sub-domains, the domain indication information is used to indicate a sub-domain decomposition result of each of the at least two sub-domains, and the sub-domain decomposition result of each of the at least two sub-domains is obtained by decomposing an SLA index; and the cross-domain slice management equipment sends the domain decomposition result of each of the at least two domains to the corresponding domain management equipment.

In some possible embodiments of the seventh aspect, the SLA metric comprises at least one of: battery life index, regional distribution index, signal coverage index, time delay index, transmission success rate index and capacity index.

In some possible implementations of the seventh aspect, the domain division result is an SLA (service level agreement) index or domain division configuration information, where the domain division configuration information is used to configure the domain division management device.

In some possible implementations of the seventh aspect, when the domain splitting result is an SLA split index, before the sending, by the cross-domain slice management device, the domain splitting result of each of the at least two domains to the corresponding domain management device, the method further includes:

the sending, by the cross-domain slice management device, the domain decomposition result of each of the at least two domains to the corresponding domain management device specifically includes:

and when the comprehensive result meets the SLA condition, the cross-domain slice management equipment sends the domain decomposition result of each of the at least two domains to the corresponding domain management equipment.

In some possible implementations of the seventh aspect, when the domain splitting result is domain splitting configuration information, before the sending, by the cross-domain slice management device, the domain splitting result of each of the at least two domains to the corresponding domain management device, the method further includes:

when the integrated result meets the SLA index, the cross-domain slice management device determines that the domain decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains;

the sending, by the cross-domain slice management device, the domain decomposition result of each of the at least two domains to the corresponding domain management device specifically includes: and when the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains, the cross-domain slice management device sends the domain decomposition result of each of the at least two domains to the corresponding domain management device.

In some possible implementations of the seventh aspect, the determining, by the cross-domain slice management device, that the preliminary decomposition result of each of the at least two domains is within the actual capability range of each of the at least two domains further includes:

In some possible implementations of the seventh aspect, the cross-domain slice management device calculating the actual capability of each of the at least two sub-domains comprises:

when the SLA metric comprises the battery life metric, the cross-domain slice management device calculates an actual battery life capability for each of the at least two sub-domains from battery life parameters, wherein the battery life parameters comprise at least one of: a flow of receiving or sending data by the terminal equipment, wherein the time required by the terminal equipment to receive or send each message, the simulation data or a reference signal receiving power or reference signal receiving quality distribution diagram in a real-time network, the size and retransmission times of a data packet corresponding to different reference signal receiving powers/reference signal receiving qualities, and relevant parameters of a prolonged discontinuous receiving or power saving mode;

when the SLA metric comprises the signal coverage metric, the cross-domain slice management device calculates an actual signal coverage capability of each of the at least two sub-domains according to a signal coverage distribution parameter, wherein the signal coverage distribution parameter comprises at least: a reference signal received power or reference signal received quality profile in the simulation data or real-time network;

when the SLA index includes the transmission success rate index, the cross-domain slice management device calculates an actual transmission success rate capability of each of the at least two sub-domains according to a transmission success rate parameter, where the transmission success rate parameter includes at least one of: the service success rate of a real-time network in a cell, simulation data or reference signal receiving power or a reference signal receiving quality distribution diagram in the real-time network, and the service success rate of each domain;

when the SLA metric comprises the capacity metric, the cross-domain slice management device calculates an actual capacity capability of each of the at least two sub-domains from a capacity parameter, wherein the capacity parameter comprises at least one of: the resource rate of the residual resource blocks of the cell, the receiving power of the reference signals or the receiving quality distribution diagram of the reference signals in the simulation data or real-time network, and the residual service capacity.

In some possible implementations of the seventh aspect, the domain indication information is used to carry the cross-domain calculation formula.

In some possible implementations of the seventh aspect, when the SLA metric comprises the battery life metric, the at least two sub-domains comprise: the cross-domain calculation formula comprises a minimum value formula;

In some possible implementations of the seventh aspect, the receiving, by the cross-domain slice management device, the domain indication information of the slice is specifically:

and the cross-domain slice management equipment receives the domain indication information of the slice, which is sent by the service management equipment.

In some possible implementations of the seventh aspect, the receiving, by the cross-domain slice management device, the domain indication information of the slice includes:

and the cross-domain slice management equipment receives the domain indication information of the slice, which is sent by the slice design management equipment.

In an eighth aspect, a network device is provided that comprises means for performing the method of the first aspect.

In a ninth aspect, there is provided a network device, comprising: a memory, and a processor, a communication module coupled with the memory, wherein: the communication module is configured to send and receive external data, the memory is configured to store implementation codes of the method described in the seventh aspect, and the processor is configured to execute the program codes stored in the memory, that is, execute the method described in the seventh aspect.

In a tenth aspect, a computer-readable storage medium is provided, having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the above aspects.

A tenth aspect provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the seventh aspect.

In an eleventh aspect, there is provided a communication system comprising: a cross-domain slice management device and at least two sub-domain management devices, wherein the cross-domain slice management device is connected to the at least two sub-domain management devices, respectively, and the cross-domain slice management device is configured to execute the method described in the sixth aspect.

In the technical scheme, the cross-domain slice management equipment decomposes the SLA index into at least two domain division decomposition results, and sends the domain division decomposition results to the domain division management equipment, so that the domain division management equipment can allocate resources to the slice according to the domain division results, and the slice is established. Because the SLA index has a multi-dimensional parameter index, and the parameter index of each dimension can represent the requirement of the tenant in one aspect, the SLA index can accurately describe the requirement of the tenant, for example, the performance requirement of the tenant on the slice when the tenant performs communication service. Therefore, the slice configuration can be established according to the SLA index by applying the SLA index to the process of establishing the slice, and the established slice meets the requirements of the tenant more accurately. The slice configuration may be various types of configuration information such as region configuration and parameter configuration.

Drawings

In order to more clearly illustrate the embodiments of the present application 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.

Fig. 1 is a schematic diagram of a communication system to which an embodiment of the present application relates;

FIG. 2 is a schematic flowchart of an SLA decomposition method provided in an embodiment of the present application;

fig. 3 is a schematic flowchart illustrating a process involved in actively sending data by a terminal device according to an embodiment of the present application;

FIG. 4 is a schematic flow chart of another SLA decomposition method provided in the embodiments of the present application;

fig. 5 is a schematic structural diagram of a first network device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a second network device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a third network device provided in the embodiment of the present application;

fig. 8 is a schematic structural diagram of a fourth network device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the accompanying drawings.

For ease of understanding, a communication system to which the embodiments of the present application are applied will be described first. In the embodiment of the present invention, the communication system may be a 5G system or a system of subsequent evolution. As shown in fig. 1, the slice is divided into at least two domains, and each domain is provided with one or more domain management devices 110 for managing the domain. Then, one or more cross-domain slice management devices 120 are set to manage the domain management devices 110 of the plurality of domains. Taking the example of dividing the handover into three sub-domains, the slice is divided into a Radio Access Network (RAN) sub-domain, a Transport Network (TN) sub-domain, and a Core Network (CN) sub-domain. The RAN management device 111 is configured to manage RAN domains, the TN management device 112 is configured to manage TN domains, and the CN management device 113 is configured to manage CN domains. The cross-domain slice management device 120 is configured to manage the RAN management device 111, the TN management device 112, and the CN management device 113. It should be understood that the above-mentioned division manner of domains is only an example, and should not be construed as a specific limitation.

In the embodiment of the present application, the domain management device 110 may be an independently configured network device. It is understood that the domain management device 110 may have other names. Of course, the different names do not affect the essence of the domain management device 110. The domain management device 110 may also be integrated with existing devices in the network. For example, the domain management device may also be integrated with the network element level network management, in which case, the function of the device of the traditional network element level network management is enhanced. The domain management device 110 may also be provided inside an existing device in the network. For example, the domain management device may also be disposed inside the network element level network manager.

In the embodiment of the present application, the cross-domain slice management device 120 may be an independently configured network device. It is understood that the cross-domain slice management device 120 may also have other names. Of course, different names do not affect the essence of the cross-domain slice management device. The cross-domain slice management device 120 may also be integrated with existing devices in the network. For example, the cross-domain slice management device 120 may also be integrated with a network-level network manager, in which case, the function of the device corresponding to the conventional network-level network manager is enhanced. The cross-domain slice management device 120 may also be provided inside an existing device in the network. For example, the cross-domain management device may also be disposed inside a network level network manager.

The network architecture applied in the embodiment of the present application may further include a service management device 140 and a slice design management device 150.

In the embodiment of the present application, the service management device 140 may be a network device that is independently configured. It is understood that the service management device 140 may also have other names. Of course, the different names do not affect the essence of the service management device 140. The traffic management device 140 may also be integrated with existing devices in the network. For example, the service management device 140 may also be integrated with network-level network management, in which case, the function of the device corresponding to the conventional network-level network management is enhanced. The traffic management device 140 may also be located inside an existing device in the network. For example, the cross-domain management device may also be disposed inside a network level network manager.

In the embodiment of the present application, the slice design management device 150 may be a network device that is independently provided. It is understood that the slice design management device 150 may also have other names. Of course, the different names do not affect the substance of the slice design management apparatus 150. The slice design management device 150 may also be integrated with existing devices in the network. For example, the slice design management device 150 may also be integrated with network-level network management, in which case, the function of the device is enhanced as compared with that of a conventional network-level network management. The slice design management device 150 may also be provided inside an existing device in the network. For example, the cross-domain management device may also be disposed inside a network level network manager.

Aiming at the prior art, the embodiment of the application provides an SLA decomposition method, equipment and a system. The following are detailed below.

To facilitate understanding of embodiments of the present application, the SLA index is first introduced. The SLA metric is used to characterize the requirements that the slice needs to meet, i.e., the requirements that the tenant of the slice wants the slice to meet. For example, the SLA metrics include at least one of: regional distribution index, battery life index, signal coverage index, delay index, transmission success rate index and capacity index.

For the area distribution index, the area distribution index is used to characterize the requirements of the area that the tenant of the slice wants cell coverage in the slice. In a specific embodiment, when the area distribution index includes only the designated area, the meaning of the area distribution index is that the cells in the slice cover the designated area. For example, when the area distribution index includes only the a area, the area distribution index means that the cell in the slice covers the a area. In another specific embodiment, when the area distribution index includes a designated area and a designated proportion, the area distribution index means that the proportion of the cell in the slice covering the designated area is greater than the designated proportion. For example, when the area distribution index includes the a area and 98%, the proportion of the a area covered by the cells in the slice is greater than 98%, that is, 98% of the a area is covered by the cells in the slice.

It is to be understood that the area distribution index may also make the designated proportion of different areas in the designated area different, for example, the designated proportion of M areas in the designated area may be 95%, the designated proportion of N areas in the designated area may be 98%, and so on. That is, the proportion of the cell coverage M area in the slice is greater than 95%, and the proportion of the cell coverage N area in the slice is greater than 98%. It should be understood that the specific embodiments of the region distribution index may be various, and only some possible embodiments are listed here, and should not be construed as specific limitations.

Here, the designated area is an area that the tenant of the slice wants cell coverage in the slice. For example, a tenant has a factory area a in Shanghai and a factory area b in Beijing, and the tenant wants the cells in the slice to cover both the factory areas a and b, so the designated areas are the factory areas a and b.

For a battery life indicator, the battery life indicator is used to characterize the requirements that a tenant of a slice wants the battery life of a terminal device in the slice to meet. In a specific embodiment, when the battery life indicator includes only life time, the battery life indicator means that the battery life of all terminal devices in the slice needs to be greater than the life time. For example, when the battery life indicator includes only 15 years, the battery life indicator means that the battery life of all terminal devices accessing the slice needs to be greater than 15 years. In another specific embodiment, when the battery life indicator includes a life time and a specified ratio, the battery life indicator means that the ratio of terminal devices in the slice having a battery life greater than the life time needs to be greater than the specified ratio. For example: when the battery life index includes 15 years and 95%, the battery life index means that the proportion of the terminal device in the slice whose battery life exceeds 15 years needs to be greater than 95%.

It is to be understood that the battery life index may also make the life time of the terminal devices in different areas in the designated area different, for example, the life time of the terminal devices in M area in the designated area may be made 20 years, the life time of the terminal devices in N area in the designated area may be made 10 years, and so on, that is, the battery life of all the terminal devices in M area in the designated area needs to be greater than 20 years, and the battery life of all the terminal devices in N area in the designated area needs to be greater than 15 years. Further, the battery life index may also make the designation proportions of the terminal devices of different areas in the designated area different, for example, may make the designation proportion of the M area in the designated area 95%, the designation proportion of the N area in the designated area 98%, and so on. That is, the proportion of terminal devices whose battery life is longer than the life time in the M region needs to be greater than 95%, and the proportion of terminal devices whose battery life is longer than the life time in the N region needs to be greater than 98%. It should be understood that the specific implementation of the battery life indicator can be varied, and only some possible implementations are illustrated herein, and should not be construed as being particularly limiting.

In this embodiment, the terminal device may be a device that is located in a special geographic location, cannot be directly powered through a power grid, and can only be powered through a battery disposed in the terminal device. For example, the terminal device may be a weather monitoring device installed in a suburb where power supply is not possible and which is located away from a power supply source, may be an instrument device such as a smart water meter or a smart electric meter installed in an area where wiring is inconvenient and power supply is not possible, or may be a biological health device such as a cardiac pacemaker embedded in a human body.

For the signal coverage indicator, the signal coverage indicator is used to characterize the requirements of the signal strength that the tenant of the slice wants the base station to provide to the terminal devices in the slice. In a specific embodiment, when the signal coverage indicator includes only the specified signal strength, the signal coverage indicator means that the signal strength of each terminal in the slice is greater than the specified signal strength. For example, when the signal coverage indicator includes only 20dBm, the signal strength of each terminal in the slice is greater than 20 dBm. In another specific embodiment, when the signal coverage indicator includes only a specified signal strength and a specified ratio, the signal coverage indicator means that the ratio of terminals in the slice having a signal strength greater than the specified signal strength needs to be greater than the specified ratio. For example, when the signal coverage indicator includes 20dBm and 98%, the proportion of terminals with signal strength greater than 20dBm in a slice needs to be greater than 98%.

It is to be appreciated that the signal coverage indicator may also cause the designated signal strength to be different for different areas of the designated area. For example, the designated signal strength of the M area in the designated area may be set to 20dBm, and the designated signal strength of the N area in the designated area may be set to 15 dBm. That is, the signal strength of each terminal in the M region is greater than 20dBm, and the signal strength of each terminal in the N region is greater than 15 dBm. The signal coverage indicator may also have different specified proportions for different regions. For example, the designated proportion of the M region may be made 95%, the designated proportion of the N region 98%, and so on. That is, the proportion of the terminals having the signal strength greater than the designated signal strength in the M region is greater than 95%, and the proportion of the terminals having the signal strength greater than the designated signal strength in the N region is greater than 98%. It should be understood that the specific implementation of the signal coverage indicator can be various, and only some possible implementations are listed here, and should not be construed as specific limitations.

Here, the designated signal strength is a signal strength that the tenant of the slice wants the terminal device in the slice to be able to reach at the time of communication. For example, most of the terminal devices of the tenant are installed in a basement or other places with poor signal strength, and therefore, it is necessary to ensure that the signal strength transmitted to the terminal device is greater than a predetermined signal strength, and it is possible to ensure that the terminal device normally communicates with the network.

For the delay index, the delay index is used to represent the requirement of the delay of the service data transmitted in the slice. In a specific embodiment, when the delay indicator includes only the delay time, the delay indicator means that the delay of the service data of the terminal device and other network devices transmitted in the slice cannot be greater than the delay time. For example, when the delay indicator includes only 10 ms, the delay indicator means that the delay of the transmission of the traffic data of the terminal device and other network devices in the slice cannot be greater than 10 ms. Here, the other network device may be a server, another terminal device, or the like, or may also be a relay, a base station, a serving gateway, or the like.

It can be understood that the delay indicator may also make the delay time of different services in the slice different. For example, the delay time of voice traffic may be made 5 milliseconds, the delay time of video traffic may be made 10 milliseconds, and so on. That is, the time delay of the transmission of the voice service data of the terminal device and other network devices in the slice cannot be greater than 5 milliseconds, and the time delay of the transmission of the video service data of the terminal device and other network devices in the slice cannot be greater than 10 milliseconds. It should be understood that the specific implementation of the delay index may be various, and only some possible implementations are listed here, and should not be construed as specific limitations.

For the transmission success rate index, the transmission success rate index is used to represent the requirement of the success rate of the successful transmission from the source node to the destination node when the service data is transmitted in the slice. In a specific embodiment, when the transmission success rate indicator only includes a communication success rate, the transmission success rate indicator means that the probability of successful communication (for example, no call drop or other problems) between the terminal device and other network devices through slicing is greater than the communication success rate. For example, when the transmission success rate index only includes 90%, the transmission success rate index means that the probability of successful communication between the terminal device and other network devices through slicing is greater than 90%. The meaning of the communication success rate can be understood as: if the terminal device communicates with the server 10 times, 9 times successfully communicated, the communication success rate of the communication between the terminal device and the server is 90%. The other network device may be a server, another terminal device, or the like, or may also be a network element such as a relay, a base station, a serving gateway, or the like.

It can be understood that the transmission success rate indicator may also make the communication success rates of different services in the slice different. For example, the communication success rate of voice service may be 95%, the communication success rate of video service may be 90%, and so on. That is, the probability that the terminal device and other network devices successfully perform voice service communication through slicing is greater than 95%, and the probability that the terminal device and other network devices successfully perform video service communication through slicing is greater than 90%. It should be understood that the specific implementation of the transmission success rate indicator can be various, and only some possible implementations are listed here, and should not be construed as specific limitations.

For the capacity index, the capacity index is used to characterize the number requirement of terminal devices allowed to access in the slice. In a specific embodiment, when the capacity indicator includes only the specified number, the meaning of the capacity indicator is that the number of terminal devices allowed to be accessed by the slice is greater than the specified number. For example, when the capacity index includes only 1 ten thousand, the capacity index means that the number of terminal devices to which the slice allows access is greater than 1 ten thousand.

It is to be understood that the capacity index may also have a different number of designations for different ones of the designated areas. For example, the specified number of M regions in the specified region is 2 ten thousand, the specified number of N regions in the specified region is 3 ten thousand, and so on. That is, the number of terminal devices allowed to access in the M region is greater than 2 ten thousands, and the number of terminal devices allowed to access in the N region is greater than 3 ten thousands.

Referring to fig. 2, fig. 2 is a schematic flowchart of an SLA decomposition method provided in an embodiment of the present application. As shown in fig. 2, the method includes:

101: the cross-domain slice management device determines an SLA index for the slice.

In this embodiment, the slice includes at least two domains, and each domain may be provided with one or more domain management devices. In a specific embodiment, the at least two domains include a RAN domain, a TN domain, and a CN domain. The domain management device comprises a RAN management device, a TN management device and a CN management device, wherein the RAN management device is used for managing RAN domains, the TN management device is used for managing TN domains, and the CN management device is used for managing CN domains. The RAN sub-domain may be an access network, or may be one or more subnets under the access network, the TN sub-domain may be a transport network, or may be one or more subnets under the transport network, and the CN sub-domain may be a core network, or may be one or more subnets under the core network. For convenience of presentation, at least two domains including RAN domain, TN domain and CN domain are taken as examples for description.

It should be understood that the above-mentioned manner of dividing slices into domains is only an example and should not be construed as a limitation.

In this embodiment of the present invention, the SLA index of the slice determined by the cross-domain slice management device may be: and the cross-domain slice management equipment receives the SLA index of the slice sent by the service management equipment. It can be understood that the SLA index of the slice may be sent to the cross-domain slice management device by the service management device, or may be sent to the cross-domain slice management device by another network element, and the present invention is not limited specifically.

102: the cross-domain slice management device selects a target index decomposition result satisfying the SLA index from the candidate index decomposition results. Wherein the target index decomposition result comprises a domain decomposition result of each of at least two domains.

In an embodiment of the present application, the candidate index decomposition result includes a domain decomposition result of each of at least two domains. The number of candidate index decomposition results may be 1 or more. For the convenience of understanding, table 1 shows a table of candidate index decomposition results taking time delay as an example, and the table includes 7 candidate index decomposition results.

TABLE 1 candidate index decomposition results Table

Taking the candidate index decomposition result with the number of 4 as an example, the meaning of the candidate index decomposition result is: the delay index needs to be decomposed into RAN sub-domains, TN sub-domains and CN sub-domains, wherein the delay index decomposed into RAN sub-domains is 4 milliseconds, the delay index decomposed into TN sub-domains is 3 milliseconds, and the delay index decomposed into CN sub-domains is 2 milliseconds. It should be understood that table 1 is by way of example only and should not be construed as limiting.

In the embodiment of the present application, the candidate index decomposition result may be preset in the cross-domain slice management device. For example, a table shown in table 1 may be set in the cross-domain slice management device in advance, or may be generated according to preset capabilities of domains sent by at least two domain management devices to the cross-domain slice management device.

In an embodiment of the present application, the preset capability may be an expected value of one or more network performances of the domain-divided management device. Wherein the network performance may be at least one of area distribution, battery life, delay index, transmission success rate or capacity, and the like. The preset capability corresponds to an SLA index, and when the SLA index comprises an area distribution index, the preset capability comprises the area distribution capability; when the SLA index comprises a battery life index, the preset capability comprises a battery life capability; when the SLA index comprises a signal coverage index, the preset capability comprises a signal coverage capability; when the SLA index comprises a delay index, the preset capability comprises a delay capability; when the SLA index comprises a transmission success rate index, the preset capability comprises a transmission success rate capability; when the SLA metric includes a capacity metric, the preset capability includes a capacity capability.

In a particular embodiment, the preset capability may include a plurality of preset capability levels. For example, the RAN sub-domain latency capability includes three capability levels of 5 ms, 4 ms, and 3 ms. That is, by adjusting the parameters of the RAN sub-domain, the time delay for the service data of the terminal device and other network devices to be transmitted in the RAN sub-domain can be 5 ms, 4 ms, or 3 ms. It is to be understood that the above examples are intended as illustrative only and should not be taken as limiting.

In the following, a description is given, with reference to a specific embodiment, how a cross-domain slice management device generates a candidate index decomposition result according to preset capacity of a domain sent to the cross-domain slice management device by at least two domain management devices. For example, if the preset capabilities reported by the RAN domains to the cross-domain slice management device are 5 milliseconds and 4 milliseconds, the preset capabilities reported by the TN domains to the cross-domain slice management device are 4 milliseconds and 3 milliseconds, and the preset capabilities reported by the CN domains to the cross-domain slice management device are 3 milliseconds and 2 milliseconds, then 8 candidate decomposition results shown in table 2 may be generated after permutation and combination.

TABLE 2 candidate index decomposition results Table

103: and the cross-domain slice management equipment sends the domain decomposition result of each of at least two domains to the domain management equipment corresponding to the domain.

In the embodiment of the present invention, a sub-domain may correspond to one or more sub-domain management devices, and a plurality of sub-domains may correspond to different sub-domain management devices, or may correspond to the same sub-domain management device at the same time. For example, the RAN sub-domain may correspond to one sub-domain management device, or may correspond to a plurality of sub-domain management devices. The RAN sub-domain and the CN sub-domain may correspond to different sub-domain management devices, or may correspond to the same sub-domain management device.

104: and the domain division management equipment allocates network resources for the slices based on the domain division result.

Specifically, the cross-domain slice management apparatus may select a target index decomposition result satisfying the SLA index from among candidate index decomposition results in the following several ways.

In a possible implementation manner, the selecting, by the cross-domain slice management device, a target index decomposition result satisfying the SLA index from the candidate index decomposition results specifically includes the following steps:

(1) the cross-domain slice management device selects a preliminary index decomposition result from the candidate index decomposition results, wherein the preliminary index decomposition result includes a preliminary decomposition result for each of at least two domains.

(2) And calculating by the cross-domain slice management equipment to obtain a comprehensive result. The comprehensive result is obtained by calculating the preliminary decomposition result of each of the at least two domains by using a cross-domain calculation formula.

(3) When the integrated result meets the SLA index, the cross-domain slice management device determines that the preliminary decomposition result of each of the at least two sub-domains is within the respective actual capability range of the at least two sub-domains.

(4) And when the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains, mapping the preliminary index decomposition result to domain configuration information by the cross-domain slice management device. The domain configuration information is used for configuring the domain management equipment. For example, the domain configuration information is the retransmission times of the data, the transmission and reception power of the data, and so on. And after receiving the domain configuration information, the domain management equipment performs configuration by using the distribution configuration information.

(3) And when the comprehensive result meets the SLA condition, the cross-domain slice management equipment maps the preliminary index decomposition result into domain configuration information.

(3) And when the comprehensive result meets the SLA index, mapping the primary index decomposition result into the SLA index by the cross-domain slice management equipment. Wherein, the SLA score index is the same as the primary decomposition result. After receiving the SLA sub-index, the sub-domain management device also needs to map the SLA sub-index into its own sub-domain configuration information, so as to configure the sub-domain management device.

The following describes in detail how the cross-domain slice management device determines that the composite result can satisfy the SLA condition for different SLA indexes.

Before step 102, the cross-domain slice management device may receive domain indication information, where the domain indication information is used to indicate a type of one or more of the at least two sub-domains, and the domain indication information may also be used to carry a cross-domain calculation formula. The domain indication information may be sent by the service management device to the cross-domain slice management device, or sent by the slice design management device to the cross-domain slice management device. It should be understood that the domain indication information may also be sent to the cross-domain slice management device by other devices, and the examples herein should not be construed as being particularly limited.

In this embodiment of the present application, if the SLA index includes a battery life index, the at least two sub-domains include a CN sub-domain and a RAN sub-domain, that is, the battery life index is implemented only in relation to the CN sub-domain and the RAN sub-domain, and is not implemented in relation to the TN sub-domain, and the preliminary index decomposition result includes: battery life indicators for CN sub-domains and RAN sub-domains. Here, the domain indication information also carries a cross-domain calculation formula corresponding to the battery life index, for example, a minimum value formula. And calculating whether the decomposed battery life indexes of the CN sub-domain and the RAN sub-domain meet the battery life indexes by taking a minimum value formula. For example, when the battery life index is that the battery life of all the terminal devices accessing the slice needs to be longer than 15 years, the battery life index of the RAN sub-domain obtained by decomposing the battery life index is that the battery life of all the terminal devices accessing the slice needs to be longer than 20 years, and the battery life index of the CN sub-domain is that the battery life of all the terminal devices accessing the slice needs to be longer than 17 years. The overall result is calculated by taking the minimum value formula min (a, b). Wherein, a is the battery life index of RAN subdomain, and b is the battery life index of CN subdomain. The comprehensive result obtained by calculation according to the minimum formula is 17 years and is greater than the battery life index, so that the battery life index can be met. It is to be understood that the above examples are intended by way of illustration only and should not be construed in a limiting sense.

In this embodiment of the present application, if the SLA index includes an area distribution index, the at least two sub-domains include RAN sub-domains, that is, the implementation of the area distribution index is only related to the RAN sub-domains, and is not related to the CN sub-domain and the TN sub-domains, and the preliminary index decomposition result includes: regional distribution of RAN sub-domains. For example, when the area distribution index is the cell coverage a area in the slice, the area distribution index of the RAN sub-domain into which the area distribution index is decomposed is the cell coverage a area in the slice. It is to be understood that the above examples are intended by way of illustration only and should not be construed in a limiting sense. In this embodiment, the domain indication information does not need to carry a cross-domain calculation formula corresponding to the region distribution index.

In this embodiment, if the SLA metric includes a signal coverage metric, the at least two sub-domains include RAN sub-domains, that is, the implementation of the area distribution metric is only related to RAN sub-domains, and is not related to CN sub-domains and TN sub-domains, and the preliminary metric decomposition result includes: signal coverage indicator of RAN sub-domain. For example, when the signal coverage indicator is that the signal strength of each terminal in the slice is greater than 20dBm, the signal coverage indicator of the RAN sub-domain obtained by decomposing the signal coverage indicator is that the signal strength of each terminal in the slice is greater than 20 dBm. It is to be understood that the above examples are intended by way of illustration only and should not be construed in a limiting sense. In this embodiment, the domain indication information does not need to carry a cross-domain calculation formula corresponding to the signal coverage index.

In this embodiment of the present application, if the SLA index includes a delay index, the at least two sub-domains include a CN sub-domain, a TN sub-domain, and a RAN sub-domain, and the preliminary index decomposition result includes: the time delay indexes of CN sub-domains, TN sub-domains and RAN sub-domains. Here, the domain indication information also carries a cross-domain calculation formula corresponding to the delay indicator, for example, a summation formula. And calculating whether the decomposed CN domain delay index, TN domain delay index and RAN domain delay index meet the delay index through a summation formula. For example, when the delay index is that the delay of service data of the terminal device and other network devices transmitted in a slice cannot be greater than 10 milliseconds, the delay index of the RAN sub-domain obtained by decomposing the delay index is that the delay of service data of the terminal device and other network devices transmitted in the RAN sub-domain cannot be greater than 4 milliseconds, the delay index of the TN sub-domain is that the delay of service data of the terminal device and other network devices transmitted in the TN sub-domain cannot be greater than 3 milliseconds, and the delay index of the CN sub-domain is that the delay of service data of the terminal device and other network devices transmitted in the CN sub-domain cannot be greater than 2 milliseconds. The integrated result is calculated by the SUM formula SUM (a, b, c). Wherein, a is the time delay index of RAN subdomain, b is the time delay index of TN subdomain, and c is the time delay index of CN subdomain. The comprehensive result obtained by calculation according to the summation formula is 9 milliseconds, which is smaller than the time delay index, so that the time delay index can be met. It is to be understood that the above examples are intended by way of illustration only and should not be construed in a limiting sense.

In this embodiment of the present application, if the SLA index includes a transmission success rate index, the at least two sub-domains include a CN sub-domain, a TN sub-domain, and a RAN sub-domain, and the preliminary index decomposition result includes: the transmission success rate index of the CN sub-domain, the transmission success rate index of the TN sub-domain and the transmission success rate index of the RAN sub-domain. Here, the domain indication information also carries a cross-domain calculation formula, i.e., a product formula, corresponding to the transmission success rate index. And calculating whether the decomposed transmission success rate indexes of the CN sub-domains, the TN sub-domains and the RAN sub-domains meet the transmission success rate indexes through a product formula. For example, when the transmission success rate index is that the probability of successfully communicating between the terminal device and other network devices through slicing is greater than 90%, the transmission success rate index resolved to the RAN sub-domain is that the probability of successfully communicating between the terminal device and other network devices through the RAN sub-domain is greater than 95%, the transmission success rate index resolved to the TN sub-domain is that the probability of successfully communicating through the TN sub-domain is greater than 98%, and the transmission success rate index resolved to the CN sub-domain is that the probability of successfully communicating through the CN sub-domain is greater than 98%. The result is calculated by the product formula a b c. Wherein, a is the transmission success rate index of RAN sub-domain, b is the transmission success rate index of TN sub-domain, and c is the transmission success rate index of CN sub-domain. The comprehensive result obtained by calculation according to the product formula a, b, c is 91.23% years, which is greater than the transmission success rate index, so that the transmission success rate index can be satisfied. It is to be understood that the above examples are intended by way of illustration only and should not be construed in a limiting sense.

In this embodiment of the present application, if the SLA index includes a capacity index, the at least two domains include a RAN domain, a CN domain, and a TN domain, and the preliminary index decomposition result includes: the capacity index of RAN subdomain, the capacity index of CN subdomain and the capacity index of TN subdomain. Here, the domain indication information also carries a cross-domain calculation formula corresponding to the capacity index, that is, a minimum value formula. And calculating whether the decomposed capacity indexes of the CN subdomains, the TN subdomains and the RAN subdomains meet the capacity indexes by taking a minimum value formula. For example, when the capacity index is that the number of terminal devices allowed to be accessed by slice access is greater than 1 ten thousand, the capacity index decomposed into RAN sub-domains is that the number of terminal devices allowed to be accessed by RAN sub-domains is greater than 2 ten thousand, the capacity index of TN sub-domains is that the number of terminal devices allowed to be accessed by TN sub-domains is greater than 1.5 ten thousand, and the capacity index of CN sub-domains is that the number of terminal devices allowed to be accessed by CN sub-domains is greater than 1.2 ten thousand. And obtaining a comprehensive result by calculating a minimum value formula min (a, b and c). Wherein, a is the capacity index of RAN subdomain, b is the capacity index of TN subdomain, and c is the capacity index of CN subdomain. The comprehensive result obtained by calculation according to the minimum formula is 1.2 ten thousand, and the specific capacity index is large, so that the capacity index can be met. It is to be understood that the above examples are intended by way of illustration only and should not be construed in a limiting sense.

The following details how the cross-domain slice management device determines that the preliminary decomposition result of the domain is within the actual capability of the domain for different SLA metrics.

The actual capabilities of a sub-domain are the capabilities that the sub-domain can actually achieve. For example, the predetermined capability of RAN sub-domain is delay of 5 ms, but in practical use, due to various environmental factors, the actual delay of RAN sub-domain can only reach 6 ms. The actual capacity of the domain is then 6 milliseconds. It can be understood that the actual capacity of the sub-domain corresponds to the SLA index, and when the SLA index includes the area distribution index, the actual capacity includes the actual area distribution capacity; when the SLA metric comprises a battery life metric, the actual capability comprises an actual battery life capability; when the SLA metric comprises a signal coverage metric, the actual capability comprises an actual signal coverage capability; when the SLA metric comprises a latency metric, the actual capability comprises an actual latency capability; when the SLA index comprises a transmission success rate index, the actual capability comprises an actual transmission success rate capability; when the SLA metric comprises a capacity metric, the actual capacity comprises an actual capacity.

When the SLA metric comprises the battery life metric, the cross-domain slice management device calculates an actual battery life capability for each of the at least two sub-domains from battery life parameters, wherein the battery life parameters comprise at least one of: a flow of Receiving or sending data by the terminal device, a time required by the terminal device to receive or send each message, a simulation data or Reference Signal Receiving Power (RSRP) or Reference Signal Receiving Quality (RSRQ) distribution diagram in a real-time network, a data packet size and retransmission times corresponding to different Reference Signal Receiving powers/Reference Signal Receiving qualities, a Power consumption required by the terminal device to send or receive data or not to send non-received data each time corresponding to a unit time, an extended discontinuous reception related parameter, a Power saving mode related parameter, a Power consumption of a sensor in the terminal device, and a self-loss condition of a battery of the terminal device. The process of receiving or sending data by the terminal device is an information process that the terminal device needs to interact with the base station in the communication process. For example, the flow involved when the terminal device actively transmits data is shown in fig. 3. The time required for the terminal device to receive or transmit each message may be the transmission and reception time required for each message in the flow shown in fig. 3. The extended discontinuous reception related parameter may be at least one of a cycle period of the medium eDRX (extended drx), a corresponding paging transmission window time length, and a power consumption situation of listening for a message in the eDRX, etc. The discontinuous reception related parameter may be at least one of a cycle of DRX when the terminal device is in an idle state, a power consumption situation of monitoring a message in the DRX, and the like. The power saving mode related parameter may be at least one of an activation time parameter in a PSM mode (power saving mode), a power consumption situation of listening for a message during the activation time, and the like. The self-loss of the terminal equipment battery means that the battery is discharged according to a certain proportion every year, so that the service life of the battery is shortened, and the like.

When the SLA index includes the area distribution index, the cross-domain slice management device calculates an actual area distribution capability of each of the at least two sub-domains according to an area distribution parameter, where the area distribution parameter includes at least a base station distribution map.

When the SLA metric comprises the signal coverage metric, the cross-domain slice management device calculates an actual signal coverage capability of each of the at least two sub-domains according to a signal coverage distribution parameter, wherein the signal coverage distribution parameter comprises at least: simulated data or reference signal received power or reference signal received quality profiles in a real-time network.

When the SLA metric includes the latency metric, the cross-domain slice management device calculates an actual latency capability of each of the at least two sub-domains according to a latency parameter, where the latency parameter includes at least one of: current resource utilization, simulated data or reference signal received power or reference signal received quality profiles in a real-time network. The current resource utilization rate may be at least one of a utilization rate of a prb (physical resource block) in the cell, a utilization rate of a Control Channel Element (CCE), a number of users that can remain to be accessed in the cell, and the like.

When the SLA index includes the transmission success rate index, the cross-domain slice management device calculates an actual transmission success rate capability of each of the at least two sub-domains according to a transmission success rate parameter, where the transmission success rate parameter includes at least one of: the service success rate of the real-time network in the cell, the simulation data or the reference signal received power in the real-time network, the reference signal received quality distribution diagram and the service success rate of each domain. The service success rate of the real-time network in the cell may be at least one of a Radio Resource Connection (RRC) establishment success rate, a Radio Bearer (RB) establishment success rate, a handover success rate, and the like in the cell.

When the SLA metric comprises the capacity metric, the cross-domain slice management device calculates an actual capacity capability of each of the at least two sub-domains from a capacity parameter, wherein the capacity parameter comprises at least one of: the remaining resource block resource rate of the cell, the reference signal received power or reference signal received quality distribution map in the simulated data or real-time network, and the remaining traffic capacity. The cell remaining resource block rate may be at least one of a utilization rate of a prb (physical resource block) in the cell, and the like. The remaining traffic capacity may be at least one of TN, remaining processing power of the CN, remaining processable packet size, and the like.

In the embodiment of the present application, the number of candidate index decomposition results satisfying the SLA index may be one or more. If the number of the candidate index decomposition results satisfying the SLA index is multiple, one target index decomposition result can be selected from the candidate index decomposition results satisfying the SLA index according to the priority level of the candidate index decomposition results. For example, taking table 2 as an example, when the SLA index is that the time delay of service data transmission between the terminal device and other network devices in a slice cannot be greater than 10 milliseconds, the candidate index decomposition results with sequence numbers 6, 7, and 8 can all satisfy the SLA index. If the priority level of the sequence number 6 is the highest, the priority level of the sequence number 7 is the next to the priority level of the sequence number 8 is the lowest, the candidate index decomposition result of the sequence number 6 can be selected as the target index decomposition result.

In the embodiment of the present application, the priority of the candidate index decomposition result may be determined according to a priority policy, and the priority policy may be determined according to factors such as the cost, the occupied resources, and the scheduling time of the candidate index decomposition result. The cost, the occupied resource and the scheduling time of the candidate index decomposition result may be calculated by the cost of reporting the domain decomposition result to the cross-domain slice management device by the domain management device. For example, taking a candidate index decomposition result with a sequence number of 1 as an example, if the scheduling time for the RAN sub-domain to realize the 5-millisecond delay is 3 milliseconds, the scheduling time for the TN sub-domain to realize the 4-millisecond delay is 2 milliseconds, and the cost for the CN sub-domain to realize the 3-millisecond scheduling time is 1 millisecond, the RAN sub-domain management device sends the scheduling time for the RAN sub-domain to realize the 5-millisecond delay to the cross-domain slice management device, the TN sub-domain management device sends the scheduling time for the TN sub-domain to realize the 4-millisecond delay to the cross-domain slice management device, and the CN sub-domain management device sends the scheduling time for the CN sub-domain to realize the 3-millisecond delay to the cross-domain slice management device. And the cross-domain slice management equipment calculates the scheduling time of the candidate index decomposition result according to the scheduling time of the RAN subdomain, the TN subdomain and the CN subdomain, and the scheduling time is 3 milliseconds +2 milliseconds +1 millisecond-6 milliseconds. It is to be understood that the priority policy follows at least one of the following principles:

(1) the higher the cost, the lower the priority level of the candidate index decomposition result, and the lower the cost, the higher the priority level of the candidate index decomposition result;

(2) the more resources are occupied, the lower the priority level of the candidate index decomposition result is, and the less resources are occupied, the higher the priority level of the candidate index decomposition result is;

(3) the lower the priority level of the candidate index decomposition result is, the longer the scheduling time is, the higher the priority level of the candidate index decomposition result is, the shorter the scheduling time is.

In the embodiment of the application, the priority level policy is pre-stored in the cross-domain slice management device; or, the priority level policy is issued by the service management device to the cross-domain slice management device; or, the priority policy is issued by the slice design management device to the cross-domain slice management device, and it can be understood that the priority policy may also be stored in other devices, which is not illustrated here.

In the technical scheme, the cross-domain slice management equipment decomposes the SLA index into at least two domain division decomposition results, and sends the domain division decomposition results to the domain division management equipment, so that the domain division management equipment can allocate resources to the slice according to the domain division results, and the slice is established. Because the SLA index has a multi-dimensional parameter index, and the parameter index of each dimension can represent the requirement of the tenant in one aspect, the SLA index can accurately describe the requirement of the tenant, for example, the performance requirement of the tenant on the slice when the tenant performs communication service. Therefore, the slice configuration can be established according to the SLA index by applying the SLA index to the process of establishing the slice, and the established slice can meet the requirements of the tenant more accurately. The slice configuration may be various types of configuration information such as region configuration and parameter configuration.

Referring to fig. 4, fig. 4 is a schematic flow chart of another SLA decomposition method provided in the embodiment of the present application. As shown in fig. 4, the method includes:

201: the cross-domain slice management apparatus receives domain indication information of a slice.

In this embodiment, the domain indication information is used to indicate a domain decomposition result of each of the at least two domains, where the domain decomposition result of each of the at least two domains is obtained by decomposing the SLA index. The domain division result may be configuration information or SLA index. Please refer to the previous embodiment for defining the sub-fields, the SLA index, the configuration information, and the SLA sub-index, which will not be described herein again.

In this embodiment of the present application, the domain indication information may be sent by the service management device to the cross-domain slice management device, or may be sent by the slice design management device to the cross-domain slice management device. It should be understood that the domain indication information may also be sent to the cross-domain slice management device by other devices, and the examples herein should not be construed as being particularly limited.

202: and the cross-domain slice management equipment sends the domain decomposition result of each of the at least two domains to the corresponding domain management equipment.

In this embodiment of the present application, the cross-domain slice management device may directly send the domain decomposition result of each of the at least two domains to the domain management device corresponding to each domain, or may send the domain decomposition result of each of the at least two domains to the corresponding domain management device again when a certain condition is satisfied. It can be understood that the cross-domain slice management device may further modify the domain decomposition result of each of the at least two domains, and send the modified domain decomposition result of each of the at least two domains to the corresponding domain management device.

In one possible embodiment, the cross-domain slice management device calculates a composite result. The comprehensive result is obtained by calculating the preliminary decomposition result of each of at least two domains by using a cross-domain calculation formula; and when the comprehensive result meets the SLA index, the cross-domain slice management equipment sends the domain decomposition result of each of the at least two domains to the corresponding domain management equipment.

In two possible embodiments, the cross-domain slice management device calculates to obtain a comprehensive result. The comprehensive result is obtained by calculating the preliminary decomposition result of each of at least two domains by using a cross-domain calculation formula; when the integrated result meets the SLA index, the cross-domain slice management device determines that the domain decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains; and when the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains, the cross-domain slice management device sends the domain decomposition result of each of the at least two domains to the corresponding domain management device.

203: and the domain division management equipment allocates network resources for the slices based on the domain division result.

It can be understood how the cross-domain slice management device determines that the integrated result can satisfy the SLA condition, and how the cross-domain slice management device determines that the preliminary decomposition result of the sub-domain is within the actual capability range of the sub-domain, please refer to the embodiment shown in fig. 2, which will not be described herein.

Referring to fig. 5, the present application further provides a network device. For example, the network device is a cross-domain slice management device. The network device shown in fig. 5 includes: a determination module 310, a selection module 320, and a transmission module 330.

The determining module 310 is configured to determine an SLA metric of a slice, wherein the slice includes at least two sub-fields;

the selection module 320 is configured to select a target index decomposition result satisfying the SLA index from candidate index decomposition results, where the target index decomposition result includes a domain decomposition result of each of the at least two domains;

the sending module 330 is configured to send a domain splitting result of each of the at least two domains to a corresponding domain management device.

Optionally, when the domain division result is the domain division configuration information, the selecting module 320 is configured to select a preliminary index division result from the candidate index division results, where the preliminary index division result includes a preliminary division result of each of the at least two domains; the cross-domain slice management equipment calculates to obtain a comprehensive result, wherein the comprehensive result is obtained by calculating the preliminary decomposition result of each domain of the at least two domains by using a cross-domain calculation formula; when the comprehensive result meets the SLA index, determining that the preliminary decomposition result of each of the at least two domains is within the actual capacity range of each of the at least two domains; and when the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains, mapping the preliminary index decomposition result to the target index decomposition result.

Optionally, when the domain decomposition result is an SLA domain, the selecting module 320 is configured to select a preliminary index decomposition result from the candidate index decomposition results, where the preliminary index decomposition result includes a preliminary decomposition result of each of the at least two domains; the cross-domain slice management equipment calculates to obtain a comprehensive result, wherein the comprehensive result is obtained by calculating the preliminary decomposition result of each domain of the at least two domains by using a cross-domain calculation formula; and when the comprehensive result meets the SLA index, mapping the preliminary index decomposition result to the target index decomposition result.

Optionally, the selecting module 320 is configured to determine a priority level of the candidate index decomposition result according to a priority level policy; and selecting a target index decomposition result meeting the SLA index from the candidate index decomposition results according to the priority level of the candidate index decomposition results.

Optionally, the priority policy is pre-stored in the cross-domain slice management device; or, the priority policy is sent to the cross-domain slice management device by the service management device; or the priority level policy is sent to the cross-domain slice management device by the slice design management device.

Optionally, the apparatus further comprises a calculating module 340, the calculating module 340 being configured to calculate an actual capability of each of the at least two domains.

For different SLA indexes, please refer to the content in the embodiment of fig. 2 for how the cross-domain slice management device determines that the preliminary decomposition result of the sub-domain is within the actual capability range of the sub-domain, which is not described herein again. Wherein the SLA metrics include at least one of: battery life index, regional distribution index, signal coverage index, time delay index, transmission success rate index and capacity index.

Optionally, the apparatus further includes a receiving module 350, where the receiving module 350 is configured to receive domain indication information of the slice, where the domain indication information is used to indicate a type of one or more of the at least two sub-domains.

Optionally, the domain indication information further includes the cross-domain calculation formula.

For different SLA indexes, what sub-domains at least two sub-domains include and for different SLA indexes, what the corresponding cross-domain calculation is refers to the content in the embodiment of fig. 2, which is not described herein again.

Optionally, the receiving module 350 is configured to receive domain indication information of the slice from a service management device.

Optionally, the receiving module 350 is configured to receive the domain indication information of the slice from a slice design management apparatus.

It should be noted that, through the foregoing detailed description of the embodiment of fig. 2, a person skilled in the art may clearly know an implementation method of each functional module included in the cross-domain slice management device, so for brevity of description, detailed description is not provided here.

An embodiment of the present invention further provides a network device (as shown in fig. 6), where the network device is configured to implement the method described in the foregoing embodiment of fig. 2. The network device may be a stand-alone network device; the method can also be integrated with the existing equipment in the network, and in this case, the function of the existing equipment is equivalently enhanced; it is also possible to arrange the devices inside the existing devices in the network, for example, a chip with a cross-domain slice management function. In a specific embodiment, the network device is a cross-domain slice management device. As shown in fig. 6, the apparatus 40 includes: a communication module 403, a memory 402, and a processor 401 coupled with the memory 402 (the number of the processors 401 may be one or more, and one processor is taken as an example in fig. 6). The communication module 403, the memory 402 and the processor 401 may be connected by a bus or other means (the bus connection is exemplified in fig. 6). The communication module 403 is used for communicating with an external device, for example, the communication module 403 may be a communication interface or the like. The memory 402 is used to store program code and the processor 401 is used to call and run the program code stored in the memory 402.

The program code stored in the memory 402 is specifically used to implement the functionality of the cross-domain slice management device in the embodiment of fig. 2. Specifically, the processor 401 is configured to call the program code stored in the memory 402, and execute the following steps:

determining, by the processor 401, an SLA metric for a slice, wherein the slice comprises at least two sub-fields;

selecting, by the processor 401, a target index decomposition result satisfying the SLA index from candidate index decomposition results, wherein the target index decomposition result includes a domain decomposition result of each of the at least two domains;

the domain division result of each of the at least two domains is sent to the corresponding domain management device through the communication module 403.

The network device according to the embodiment of the present invention is configured to execute the method shown in fig. 2, and please refer to fig. 2 and the related description, which will not be further described herein.

Referring to fig. 7, the present application further provides a network device. In a particular embodiment, the network device may be a cross-domain slice management device. The network device shown in fig. 7 includes: a receiving module 510 and a sending module 530,

the receiving module 510 is configured to receive domain indication information of a slice, where the slice includes at least two domains, and the domain indication information is used to indicate a domain decomposition result of each of the at least two domains, where the domain decomposition result of each of the at least two domains is obtained by decomposing an SLA index;

the sending module 530 is configured to send a domain splitting result of each of the at least two domains to a corresponding domain management device.

Optionally, when the domain splitting result is an SLA sub-index, the cross-domain slice management device further includes a calculating module 520, where the calculating module 520 is configured to calculate a comprehensive result, where the comprehensive result is a result obtained by calculating a preliminary splitting result of each of the at least two domains using a cross-domain calculation formula; the sending module 530 is configured to, when the integrated result meets the SLA condition, send, by the cross-domain slice management device, a domain decomposition result of each of the at least two domains to a corresponding domain management device.

Optionally, when the domain splitting result is domain splitting configuration information, the cross-domain slice management device further includes a calculating module 520, and the calculating module 520 calculates a comprehensive result, where the comprehensive result is a result obtained by calculating a preliminary splitting result of each of the at least two domains using a cross-domain calculation formula; when the integrated result meets the SLA index, the cross-domain slice management device determines that the domain decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains; the sending module 530 is configured to send, by the cross-domain slice management device, the domain decomposition result of each of the at least two domains to a corresponding domain management device when the preliminary decomposition result of each of the at least two domains is within the respective actual capability range of the at least two domains.

Optionally, the calculating module 520 is configured to calculate an actual capability of each of the at least two domains.

Optionally, the domain indication information is used to carry the cross-domain calculation formula.

Optionally, the receiving module 510 is configured to receive domain indication information of the slice, which is sent by a service management device.

Optionally, the receiving module 510 is configured to receive domain indication information of the slice, which is sent by a slice design management device.

It should be noted that, through the foregoing detailed description of the embodiment of fig. 4, a person skilled in the art may clearly know an implementation method of each functional module included in the cross-domain slice management device, so for brevity of description, detailed description is not provided here.

An embodiment of the present invention further provides a network device (as shown in fig. 8), where the network device is configured to implement the method described in the foregoing embodiment of fig. 4. The network device may be an independently installed network device, may be integrated with an existing device in the network, and in this case, it is equivalent to enhance the function of the existing device, and may also be installed inside the existing device in the network. In a specific embodiment, the network device is a cross-domain slice management device. As shown in fig. 8, the apparatus 60 includes: a communication module 603, a memory 602, and a processor 601 coupled to the memory 602 (the number of processors 601 may be one or more, and one processor is taken as an example in fig. 8). The communication module 603, the memory 602, and the processor 601 may be connected by a bus or other means (in fig. 8, connection by a bus is taken as an example). The communication module 603 is used for communicating with an external device, for example, the communication module 603 may be a communication interface or the like. The memory 602 is used for storing program codes, and the processor 601 is used for calling and executing the program codes stored in the memory 602.

The program code stored in the memory 602 is specifically used to implement the functionality of the cross-domain slice management device in the embodiment of fig. 4. Specifically, the processor 601 is configured to call the program code stored in the memory 602, and perform the following steps:

receiving, by the receiver 604, domain indication information of a slice, wherein the slice includes at least two sub-domains, the domain indication information indicating a sub-domain decomposition result of each of the at least two sub-domains, the sub-domain decomposition result of each of the at least two sub-domains being decomposed for the SLA index;

the domain division result of each of the at least two domains is sent to the corresponding domain management device by the transmitter 603.

The network device according to the embodiment of the present invention is configured to execute the method shown in fig. 4, and please refer to fig. 4 and the related description, which will not be further described herein.

In addition, an embodiment of the present invention further provides a communication system, including: a cross-domain slice management device and a sub-domain management device. The cross-domain slice management device may perform the method shown in fig. 2, or may perform the method shown in fig. 4.

In a specific implementation, the cross-domain slice management device may be the cross-domain slice management device shown in fig. 4, or may be the cross-domain slice management device shown in fig. 6. It is to be understood that the present examples are illustrative only and are not to be construed as limiting in any way.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways without departing from the scope of the application. For example, the above-described embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Additionally, the systems, devices, and methods described, as well as the illustrations of various embodiments, may be combined or integrated with other systems, modules, techniques, or methods without departing from the scope of the present application. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some interfaces, and may be in an electronic, mechanical or other form.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A service level agreement, SLA, decomposition method, comprising:

determining an SLA index of a slice by a cross-domain slice management device, wherein the slice comprises at least two domains;

the cross-domain slice management equipment selects a target index decomposition result meeting the SLA index from candidate index decomposition results, wherein the target index decomposition result comprises a domain decomposition result of each of the at least two domains;

and the cross-domain slice management equipment sends the domain decomposition result of each of the at least two domains to the corresponding domain management equipment.

2. The method of claim 1, wherein the SLA metrics comprise at least one of: battery life index, regional distribution index, signal coverage index, time delay index, transmission success rate index and capacity index.

3. The method of claim 2, wherein the domain splitting result is an SLA (service level agreement) sub-indicator or domain configuration information, wherein the domain configuration information is used for configuring the domain management device.

4. The method according to claim 3, wherein when the domain decomposition result is domain configuration information, the selecting, by the cross-domain slice management device, a target index decomposition result satisfying the SLA index from candidate index decomposition results comprises:

5. The method of claim 4, wherein the cross-domain slice management device determines that the preliminary decomposition result for each of the at least two sub-domains is within the respective actual capabilities of the at least two sub-domains, and further comprising:

6. The method of claim 5, wherein the cross-domain slice management device calculating the actual capability of each of the at least two sub-domains comprises:

7. The method according to claim 3, wherein when the domain decomposition result is an SLA index, the cross-domain slice management apparatus selecting a target index decomposition result satisfying the SLA index from a plurality of candidate index decomposition results comprises:

8. The method according to any of claims 4 to 6, wherein before the cross-domain slice management device selects a target index decomposition result satisfying the SLA index from the candidate index decomposition results, the method further comprises:

9. The method of claim 8, wherein the domain indication information further comprises the cross-domain calculation formula.

10. The method of claim 9,

when the SLA metric comprises the battery life metric, the at least two domains comprise: the cross-domain calculation formula comprises a minimum value formula;

11. The method of claim 8, wherein the receiving domain indication information for the slice by the cross-domain slice management device comprises:

12. The method of claim 8, wherein the receiving domain indication information for the slice by the cross-domain slice management device comprises:

13. The method according to any of claims 1 to 7, wherein the cross-domain slice management device selects a target index decomposition result from candidate index decomposition results according to the SLA index, comprising:

14. The method of claim 13,

the priority level policy is pre-stored in the cross-domain slice management device; or,

15. A network device, comprising: a determining module, a selecting module and a sending module,

the determining module is used for determining an SLA index of a slice, wherein the slice comprises at least two domains;

the selection module is used for selecting a target index decomposition result meeting the SLA index from candidate index decomposition results, wherein the target index decomposition result comprises a domain decomposition result of each of the at least two domains;

the sending module is configured to send the domain splitting result of each of the at least two domains to the corresponding domain management device.

16. The apparatus of claim 15, wherein the SLA metrics comprise at least one of: battery life index, regional distribution index, signal coverage index, time delay index, transmission success rate index and capacity index.

17. The device of claim 16, wherein the domain splitting result is an SLA (service level agreement) sub-index or domain configuration information, and wherein the domain configuration information is used for configuring the domain management device.

18. The apparatus of claim 17, wherein the selection module is configured to select a preliminary index decomposition result from the candidate index decomposition results, wherein the preliminary index decomposition result comprises a preliminary decomposition result for each of the at least two domains; calculating to obtain a comprehensive result, wherein the comprehensive result is obtained by calculating the preliminary decomposition result of each of the at least two domains by using a cross-domain calculation formula, and when the comprehensive result meets the SLA index, determining that the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains; and when the preliminary decomposition result of each of the at least two domains is within the respective actual capacity range of the at least two domains, mapping the preliminary index decomposition result to the target index decomposition result.

19. The apparatus of claim 18, further comprising a calculation module configured to calculate an actual capability of each of the at least two domains.

20. The apparatus of claim 19, wherein the computing module is configured to:

21. The apparatus of claim 17, wherein the selection module is configured to select the selected cell from a plurality of cells

Selecting a preliminary index decomposition result from the candidate index decomposition results, wherein the preliminary index decomposition result comprises a preliminary decomposition result of each of the at least two domains; and calculating to obtain a comprehensive result, wherein the comprehensive result is obtained by calculating the preliminary decomposition result of each of the at least two domains by using a cross-domain calculation formula, and when the comprehensive result meets the SLA index, mapping the preliminary index decomposition result to be the target index decomposition result.

22. The apparatus according to any of claims 18 to 20, further comprising a receiving module configured to receive domain indication information of the slice, wherein the domain indication information is used to indicate a type of one or more of the at least two partitions.

23. The apparatus of claim 22, wherein the domain indication information further comprises the cross-domain calculation formula.

24. The apparatus of claim 23,

25. The apparatus of claim 22, wherein the receiving module is configured to receive domain indication information of the slice from a traffic management apparatus.

26. The device of claim 22, wherein the receiving module is configured to receive the domain indication information of the slice from a slice design management device.

27. The apparatus according to any one of claims 15 to 21, wherein the selection module is configured to determine a priority of the candidate index decomposition result according to a priority policy; and selecting a target index decomposition result meeting the SLA index from the candidate index decomposition results according to the priority level of the candidate index decomposition results.

28. The apparatus of claim 27,

the priority level strategy is pre-stored in the cross-domain slice management equipment; or,

29. An SLA decomposition system, comprising: a cross-domain slice management device and at least two sub-domain management devices, wherein the cross-domain slice management device is connected with the at least two sub-domain management devices respectively, and the cross-domain slice management device performs the method according to any one of claims 1 to 14.