WO2019052363A1

WO2019052363A1 - Method and apparatus for modifying network slice instance

Info

Publication number: WO2019052363A1
Application number: PCT/CN2018/103831
Authority: WO
Inventors: 杨水根; 谭巍; 陆伟; 孙文琦; 冯珍妮; 蒋若冰
Original assignee: 华为技术有限公司
Priority date: 2017-09-18
Filing date: 2018-09-03
Publication date: 2019-03-21
Also published as: CN109526032A; CN109526032B

Abstract

Disclosed are a method and apparatus for modifying a network slice instance for the modification of the network slice instance. The method for modifying a network slice instance comprises: a first network device receiving a first request from a second network device, wherein the first request comprises an identifier of a network slice instance, an identifier of a network slice sub-network instance and indication information, and the indication information is used for instructing the first network device to add the network slice sub-network instance to the network slice instance, or for instructing the first network device to delete the network slice sub-network instance from the network slice instance; and the first network device adding the network slice sub-network instance to the network slice instance according to the first request or deleting the network slice sub-network instance from the network slice instance according to the first request. The present application relates to the technical field of communications.

Description

Method and device for modifying network slice instance

This application claims the priority of the Chinese Patent Application filed on Sep. 18, 2017, the Chinese Patent Office, Application No. 201710841751.X, entitled "Method and Apparatus for Modifying Network Slice Examples", the entire contents of which are incorporated by reference. In this application.

Technical field

The present application relates to the field of communications technologies, and in particular, to a method and apparatus for modifying an instance of a network slice.

Background technique

With the rapid development of mobile communications, digital transformation involves almost all traditional industries. However, the traditional cellular network architecture can only provide a unified network service, and it is difficult to meet the extremely different communication requirements brought about by the digital transformation wave, including functional differences and performance differences. In the fifth-generation (fifth-generation, 5G) wireless communication system, the network will be abstracted as "network slicing", a network slice satisfies the connection communication service requirements of a certain class or a use case, and the entire 5G network satisfies different connections. The ability to make up a large number of network slices. A unified network platform that utilizes dynamic and secure network slicing to support different functions and quality of service (QoS) connection communication services is one of the basic capabilities of 5G networks.

The network slicing instance is created by the network slicing management system. A network slicing management system may create multiple network slicing instances and manage them at the same time, including performance monitoring, fault management, modification, etc. during the running of the network slicing instance. However, there is currently no technical solution for how to implement the modification of the network slice instance.

Summary of the invention

The embodiment of the present application provides a method and an apparatus for modifying a network slice instance, which are used to modify a network slice instance.

To achieve the above objective, the embodiment of the present application provides the following technical solutions:

In a first aspect, a method for modifying an instance of a network slice is provided, the method comprising: receiving, by a first network device, a first request from a second network device, where the first request includes an identifier of a network slice instance, and a network slice subnet instance And the indication information is used to indicate that the first network device adds the network slice subnet instance to the network slice instance, or is used to instruct the first network device to delete the network slice subnet instance from the network slice instance; the first network The device adds the network slice subnet instance to the network slice instance according to the first request, or deletes the network slice subnet instance from the network slice instance according to the first request. The method provided by the first aspect, the first network device adds or deletes the NSSI in the NSI according to the first request sent by the second network device, and the network function provided by the NSI can be changed by adding or deleting the NSSI in the NSI, according to the service requirement or Network performance In the case of adding or removing NSSI in the NSI, the NSI can satisfy the service requirements or guarantee network performance.

In one possible design, adding a network slice subnet instance to a network slice instance corresponds to configuring a network slice instance identifier to a service endpoint description of a network slice subnet instance identified by an identifier of the network slice subnet instance, Making the network slice subnet instance serve the network slice instance; deleting the network slice subnet instance from the network slice instance corresponds to the service of identifying the network slice instance from the network sliced subnet instance identified by the identifier of the network sliced subnet instance The endpoint description is removed so that the network sliced subnet instance no longer serves the network slice instance.

In a possible design, after the first network device adds the network slice subnet instance to the network slice instance according to the first request, or after deleting the network slice subnet instance from the network slice instance according to the first request, the method The method further includes: the first network device sends a first response to the second network device, where the first response is used to indicate whether the first network device successfully adds the network slice subnet instance to the network slice instance, or deletes the network from the network slice instance. Slice a subnet instance.

A second aspect provides a method for modifying an instance of a network slice, the method comprising: determining, by the second network device, that the network slice instance is modified; and the second network device sending the first request to the first network device, where the first request includes The identifier of the network slice instance, the identifier of the network slice subnet instance, and the indication information; the indication information is used to indicate that the first network device adds the network slice subnet instance to the network slice instance, or is used to indicate that the first network device is sliced from the network The network slice subnet instance is deleted in the instance. In a second aspect, the second network device sends a first request to the first network device when the NSI needs to be modified, where the first request includes an NSI ID, an NSSI ID, and indication information, so that the first network device is configured according to the first Requesting to add or delete NSSI in the NSI, by adding or deleting NSSI in the NSI, the network function provided by the NSI can be changed, and when the NSSI is added or deleted in the NSI according to service requirements or network performance, the NSI can be made to meet the service requirement or Guarantee network performance.

In a possible design, the second network device determines to modify the network slice instance, including: the second network device receives the modification request of the network slice instance; or the second network device according to the current running state and the pre-process of the network slice instance Let the rules determine the modification of the network slice instance.

In a possible design, after the second network device sends the first request to the first network device, the method further includes: the second network device receiving the first response from the first network device, and determining, according to the first response, Whether the network device successfully adds the network slice subnet instance to the network slice instance, or deletes the network slice subnet instance from the network slice instance; the first response is used to indicate whether the first network device successfully adds the network sliced subnet instance Go to the network tile instance or remove the network slice subnet instance from the network slice instance.

A third aspect provides a method for modifying an instance of a network slice, the method comprising: receiving, by a first network device, a second request from a second network device, where the second request is for requesting the first network device to create a network slice subnet instance, The second request includes a network slice subnet related requirement; the first network device creates a network slice subnet instance according to the network slice subnet related requirement; the first network device sends the identifier of the network slice subnet instance to the second network device; The network device receives a third request from the second network device, where the third request includes an identifier of the network slice instance, an identifier of the network slice subnet instance, and indication information, where the indication information is used to indicate that the first network device adds the network slice subnet instance To the network slice instance; the first network device adds the network slice subnet instance to the network slice instance according to the third request. The third aspect provides the method, the first network device adds an NSSI to the NSI according to the third request sent by the second network device, and the NSI provides the network function by adding the NSSI in the NSI, in the NSI according to the service requirement or the network performance. When NSSI is added, the NSI can be made to meet the service requirements or ensure network performance.

In one possible design, adding a network slice subnet instance to a network slice instance corresponds to configuring a network slice instance identifier to a service endpoint description of a network slice subnet instance identified by an identifier of the network slice subnet instance, Enables a network sliced subnet instance to serve a network slice instance.

In a possible design, the network slice subnet related requirements include one or more of the following requirements: a service level agreement of the network slice subnet, a network key performance indicator of the network slice subnet, a type of the network slice subnet, The quality of service of the network slicing subnet, the network topology of the network slicing subnet, the resource requirements of the network slicing subnet, and the network function related requirements of the network slicing subnet.

In a possible design, after the first network device adds the network slice subnet instance to the network slice instance according to the third request, the method further includes: the first network device sending the second response to the second network device, The second response is used to indicate whether the first network device successfully adds the network slice subnet instance to the network slice instance.

A fourth aspect provides a method for modifying an instance of a network slice, the method comprising: determining, by the second network device, that the network slice instance is modified; the second network device sending a second request to the first network device, where the second request is used for And requesting the first network device to create a network slice subnet instance, where the second request includes a network slice subnet related requirement; the second network device receives the identifier of the network slice subnet instance from the first network device; and the second network device is configured to the first network The device sends a third request, where the third request includes an identifier of the network slice instance, an identifier of the network slice subnet instance, and indication information, where the indication information is used to indicate that the first network device adds the network slice subnet instance to the network slice instance. The method provided by the fourth aspect, the second network device, when determining that the NSI needs to be modified, sending a third request to the first network device, where the third request includes an NSI ID, an NSSI ID, and indication information, so that the first network device is configured according to the third The NSI is added to the NSI. The NSI can be used to change the network function provided by the NSI. When the NSI is added to the NSI according to service requirements or network performance, the NSI can meet the service requirements or ensure network performance.

In a possible design, after the second network device sends the third request to the first network device, the method further includes: the second network device receiving the second response from the first network device, and determining, according to the second response, Whether the network device successfully adds the network slice subnet instance to the network slice instance, and the second response is used to indicate whether the first network device successfully adds the network slice subnet instance to the network slice instance.

A fifth aspect provides a method for modifying a network slice instance, the method comprising: receiving, by a first network device, a fourth request from a second network device, where the fourth request includes an identifier of a network slice instance and a network slice subnet related requirement And the fourth request is used to request the first network device to create a network slice subnet instance and add the network slice subnet instance to the network slice instance; the first network device creates a network slice subnet instance according to the network slice subnet related requirement; a network device adds a network slice subnet instance to the network slice instance; the first network device sends an identifier of the network slice subnet instance to the second network device, where the second network device determines that the first network device successfully slices the network The network slice subnet instance identified by the identity of the network instance is added to the network slice instance. The method provided by the fifth aspect, the first network device creates an NSSI according to the fourth request sent by the second network device, and adds the NSSI to the NSI, and the network function provided by the NSI can be changed by adding the NSSI in the NSI, according to the service requirement or Network performance When NSSI is added to the NSI, the NSI can meet the service requirements or guarantee network performance. Moreover, in the case that there is no NSSI in the network that meets the requirements related to the network slice subnet, the process of adding the NSSI in the NSI provided by this embodiment is compared with the process of adding the NSSI in the NSI shown in FIG. 4 above. Can save signaling overhead.

A sixth aspect provides a method for modifying an instance of a network slice, the method comprising: determining, by the second network device, that the network slice instance is modified; and the second network device sending a fourth request to the first network device, where the fourth request includes The identifier of the network slice instance and the network slice subnet related requirement, the fourth request is for requesting the first network device to create a network slice subnet instance and adding the network slice subnet instance to the network slice instance; the second network device receives the first The identifier of the network slice subnet instance sent by the network device, and determining, according to the identifier of the network slice subnet instance, that the first network device successfully adds the network slice subnet instance identified by the identifier of the network slice subnet instance to the network slice instance. The method provided by the sixth aspect, the second network device, when determining that the NSI needs to be modified, sending a fourth request to the first network device, where the fourth request includes an NSI ID and a network slice subnet related requirement, so that the first network device is configured according to the first The request is to create an NSSI and add the NSSI to the NSI. By adding the NSSI in the NSI, the network function provided by the NSI can be changed. When the NSI is added to the NSI according to the service requirement or the network performance, the NSI can satisfy the service requirement or guarantee. Network performance. Moreover, in the case that there is no NSSI in the network that meets the requirements related to the network slice subnet, the process of adding the NSSI in the NSI provided by this embodiment is compared with the process of adding the NSSI in the NSI shown in FIG. 4 above. Can save signaling overhead.

In a seventh aspect, there is provided an apparatus for modifying an instance of a network slice, the apparatus having the functionality of implementing the method of any one of the first aspect or the third aspect or the fifth aspect. This function can be implemented in hardware or in hardware by executing the corresponding software. The hardware or software includes one or more units corresponding to the functions described above.

In an eighth aspect, there is provided an apparatus for modifying an instance of a network slice, the apparatus having the functionality of implementing the method of any one of the second aspect or the fourth aspect or the sixth aspect. This function can be implemented in hardware or in hardware by executing the corresponding software. The hardware or software includes one or more units corresponding to the functions described above.

A ninth aspect, an apparatus for modifying an instance of a network slice, the apparatus comprising: a memory and a processor; the memory for storing a computer execution instruction, the processor executing a computer-executed instruction of the memory storage to cause the apparatus to implement the first aspect or A method according to any one of the third aspect or the fifth aspect. The device can be in the form of a chip product.

A tenth aspect provides an apparatus for modifying an instance of a network slice, the apparatus comprising: a memory and a processor; the memory for storing a computer to execute an instruction, the processor executing a computer-executed instruction of the memory storage to cause the apparatus to implement the second aspect or A method according to any one of the fourth aspect or the sixth aspect. The device can exist in the form of a chip product.

In an eleventh aspect, a computer readable storage medium is provided, comprising instructions which, when executed on a computer, cause the computer to perform any one of the first aspect or the third aspect or the fifth aspect.

According to a twelfth aspect, there is provided a computer readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of the second aspect or the fourth aspect or the sixth aspect.

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

In a fourteenth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the methods of the second aspect or the fourth or sixth aspect described above.

For the technical effects brought by any one of the seventh aspect to the fourteenth aspect, the technical effects brought by the different design modes in the first to sixth aspects can be referred to, and details are not described herein again.

DRAWINGS

FIG. 1 is a schematic structural diagram of a network slice management system according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of hardware of a network device according to an embodiment of the present disclosure;

FIG. 3 is a flowchart of a method for modifying an NSI according to an embodiment of the present application;

FIG. 4 is a flowchart of another method for modifying an NSI according to an embodiment of the present disclosure;

FIG. 5 is a flowchart of still another method for modifying an NSI according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. In the description of the present application, unless otherwise stated, "/" means the meaning of or, for example, A/B may represent A or B; "and/or" herein is merely an association describing the associated object. The relationship indicates that there may be three kinds of relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. In addition, in the description of the present application, "a plurality" means two or more than two.

In order to facilitate the understanding of the embodiments of the present application, the concepts related to the present application will be briefly described below.

Network slice: A different logical network that is customized according to different service requirements. The network slice can be a complete network including a terminal, an access network, a transmission network, a core network, and an application server, and can provide a complete telecommunication service with certain network capabilities; the network slice can also be the above terminal, access network, A combination of one or more of a transport network, a core network, and an application server.

A network slice instance (NSI) is an instantiation of a network slice, that is, a real-running logical network that satisfies certain network characteristics or service requirements. An NSI may provide one or more services. The NSI can be created by a network slice management system. A network slice management system may create multiple NSIs and manage them at the same time, for example, modify, terminate, etc. multiple NSIs. When multiple NSIs coexist, some network resources and network functions may be shared between the NSIs. The NSI may or may not be created from a network slice template. A complete NSI can provide complete end-to-end network services, and the NSI can be a network slice subnet instance (NSSI) and/or network function. Network functions may include physical network functions and/or virtual network functions. The following describes physical network functions and/or virtual network functions collectively as network functions.

NSSI: NSSI does not need to provide complete end-to-end network services. NSSI can be a collection of network functions of the same equipment provider in the NSI, or a collection of network functions divided by domain, such as core network NSSI, access network. NSSI, or a collection of other ways, such as where to deploy. NSSI may be shared by multiple NSIs. The NSSI is proposed to facilitate the management of the network slice management system.

An NSI is identified by an NSI ID (NSI ID). Correspondingly, an NSSI is identified by an NSSI identifier (NSSI ID). Illustratively, the NSI ID and the NSSI ID may be in a digital form, or may be in the form of a character, or may be a combination of a number and a character.

Exemplarily, referring to FIG. 1, the network slice management system includes a communication service management function (CSMF), a network slice management function (NSMF), and a network slice subnet management function (network slice). Subnet management function (NSSMF for short). Among them, CSMF is mainly responsible for translating the communication service related requirements of operators and/or third-party customers into related requirements of network slicing, and sending the requirements for network slicing (such as creation, termination, modification) to the NSMF through the interface with NSMF. The NSI request, etc., acquires management data (such as performance, fault data, etc.) of the network slice from the NSMF, generates management data of the communication service running on the NSI, and receives the network slice management data from the operator and/or the third party client. / or the subscription requirements of the management data of the communication service. The NSMF is mainly responsible for receiving the network slice related requirements sent by the CSMF, managing the life cycle, performance, and faults of the NSI, orchestrating the components of the NSI, decomposing the NSI requirements for each NSSI, and sending an NSSI management request to each NSSMF. The NSSMF is mainly responsible for receiving network slice subnet related requirements sent by the NSMF, managing the NSSI, and compiling the NSSI components.

FIG. 2 is a schematic diagram showing the hardware structure of a network device 20 according to an embodiment of the present application. The network device 20 includes at least one processor 201, a communication bus 202, a memory 203, and at least one communication interface 204.

The processor 201 can be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the program of the present application. Execution of the integrated circuit.

Communication bus 202 can include a path for communicating information between the components described above.

The communication interface 204 can be any device such as a transceiver for communicating with other devices or communication networks, such as an Ethernet, an internet protocol (IP) network, and the like.

The memory 203 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or a device that can store information and instructions. Other types of dynamic storage devices may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical discs. Storage, optical storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures And any other medium that can be accessed by a computer, but is not limited thereto. The memory can exist independently and be connected to the processor via a bus. The memory can also be integrated with the processor.

The memory 203 is used to store application code for executing the solution of the present application, and is controlled by the processor 201 for execution. The processor 201 is configured to execute application code stored in the memory 203 to implement the method described below.

In a particular implementation, as an embodiment, processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG.

In a particular implementation, as an embodiment, network device 20 may include multiple processors, such as processor 201 and processor 208 in FIG. Each of these processors can be a single-CPU processor or a multi-core processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.

In a particular implementation, as an embodiment, network device 20 may also include an output device 205 and an input device 206.

The embodiment of the present application provides a method for modifying an NSI. As shown in FIG. 3, the method includes:

301. The second network device determines to modify the NSI.

The second network device may be an NSMF or a device having the function of the NSMF (for example, a device that loads NSMF software). Modifications to the NSI may include adding NSSI or deleting NSSI in the NSI. Specifically, adding the NSSI to the NSI may be configured to configure the NSI ID into the service endpoint description of the NSSI identified by the NSSI ID, so that the NSSI can provide services for the NSI; and deleting the NSSI from the NSI may be to remove the NSI ID from the NSI. The service endpoint description of the NSSI identified by the ID is deleted, so that the NSSI no longer provides services for the NSI.

Optionally, the step 301 may include: the second network device receives the modification request of the NSI; or the second network device determines to modify the NSI according to the current running state of the NSI and the preset rule.

The second network device may receive a modification request of the NSI from the third network device or other network device. The third network device may be a CSMF or a device having the function of CSMF (for example, a device loaded with CSMF software).

The current running state of the NSI may include the current load of the NSI, the current CPU usage, and the like. When the preset rule may be that the current running state meets a certain condition, the second network device determines to modify the NSI. For example, when the current CPU utilization of the NSI is greater than the first preset value, the second network device determines to modify the NSI. Exemplarily, the first preset value may be 80%.

302. The second network device sends a first request to the first network device, where the first network device receives the first request from the second network device.

The first request includes an NSI ID, an NSSI ID, and indication information. The indication information is used to indicate that the first network device adds the NSSI to the NSI, or is used to instruct the first network device to delete the NSSI from the NSI. The first network device may be an NSSMF or a device having the function of NSSMF (for example, a device that loads NSSMF software).

The indication information may be corresponding to the NSSI ID, and may also be corresponding to the NSI ID, which is not specifically limited in this embodiment of the present application.

Optionally, the first request may include an NSI ID, multiple NSSI IDs, and indication information, where the multiple NSSI IDs may correspond to one indication information, where the indication information may be used to indicate that multiple NSSIs identified by multiple NSSI IDs are added. The NSI identified in the NSI ID or the indication information may be used to indicate that multiple NSSIs of multiple NSSI ID identifiers are deleted from the NSI identified by the NSI ID. In this case, Table 1 exemplarily shows an NSI ID, The NSSI ID and the corresponding information of the indication information, the first indication information may be used to indicate that the NSSI 1, the NSSI 2, and the NSSI 3 are deleted from the NSI 1; the multiple NSSI IDs may also respectively correspond to one indication information, and an indication corresponding to an NSSI ID The information is used to indicate that the NSSI identified by the NSSI ID is added to the NSI identified by the NSI ID or the indication information may be used to indicate that the NSSI of the NSSI ID identifier is deleted from the NSI identified by the NSI ID. In this case, Table 2 is exemplary. The mapping between the NSI ID, the NSSI ID, and the indication information is shown. The first indication information may be used to indicate that the NSSI 1 is deleted from the NSI 1, and the second indication information may be used to indicate that the NSSI 2 is to be used. Was added to NSI 1, the third indication information indicating NSSI 3 may be used to remove from the NSI 1.

Table 1

Table 2

Optionally, the first request may further include multiple NSI IDs, one NSSI ID, and indication information, where multiple NSI IDs may correspond to one indication information, for example, the indication information may be used to indicate that the NSSI identified by the NSSI ID is multiple. The NSI ID is deleted from the multiple NSIs or the indication information may be used to indicate that the NSSI identified by the NSSI ID is added to multiple NSIs of multiple NSI ID identifiers. In this case, Table 3 exemplarily shows an NSI. The ID, the NSSI ID, and the corresponding information of the indication information, the first indication information may be used to indicate that the NSSI 1 is deleted from the NSI 1, the NSI 2, and the NSI 3. The multiple NSI IDs may also correspond to one indication information, and one NSI ID corresponds to The indication information may be used to indicate the NSSI deletion of the NSSI ID identifier in the NSI identified by the NSI ID or the indication information may be used to indicate that the NSSI identified by the NSSI ID is added to the NSI of the NSI ID identifier, in which case Table 4 exemplarily shows a corresponding relationship between an NSI ID, an NSSI ID, and indication information. The first indication information may be used to indicate that the NSSI 1 is deleted from the NSI 1, and the second indication information may be used. Shows the NSSI1 added to NSI 2, the third indication information indicating NSSI 3 may be used to remove from the NSI 3.

table 3

Table 4

Optionally, the first request may further include multiple NSI IDs, multiple NSSI IDs, and indication information, where the NSI ID and the NSSI ID may be in one-to-one correspondence, and the first request may include only one indication information, and the indication information may be used. The NSI of the NSI ID identifier is added to the NSI that is identified by the NSI ID, or is used to indicate that the NSSI identified by the NSSI ID is deleted from the NSI identified by the NSI ID. In this case, the table is deleted. 5 exemplarily shows a corresponding relationship between an NSI ID, an NSSI ID, and indication information. The first indication information may be used to indicate that NSSI 1 is added to NSI 1, and NSSI 2 is added to NSI 2, and NSSI 3 is added. Adding to the NSI 3; the NSI ID, the NSSI ID, and the indication information may also be in one-to-one correspondence. In this case, an indication information may be used to indicate that the NSSI ID of the NSSI ID corresponding to the indication information is added to the NSI ID corresponding to the indication information. The identified NSI may be used to indicate that the NSSI of the NSSI ID identifier corresponding to the indication information is deleted from the NSI identified by the NSI ID corresponding to the indication information. In this case, Table 6 exemplarily shows a type. The NSI ID, the NSSI ID, and the indication information, the first indication information may be used to indicate that the NSSI 1 is added to the NSI 1, and the second indication information may be used to indicate that the NSSI 2 is added to the NSI 2, and the third indication information is used. Can be used to indicate that NSSI 3 is removed from NSI 3. Certainly, an NSI ID in the first request may also correspond to multiple NSSI IDs, or an NSSI ID may correspond to multiple NSI IDs. The specific role of the indication information in this case may be referred to above, and details are not described herein again.

table 5

Table 6

NSI IDNSI ID	NSSI IDNSSI ID	指示信息Instructions
11	11	第一指示信息First indication
22	22	第二指示信息Second indication
33	33	第三指示信息Third indication

303. The first network device adds the NSSI to the NSI according to the first request, or deletes the NSSI from the NSI according to the first request.

Specifically, when the indication information is used to indicate that the first network device adds the NSSI to the NSI, the first network device adds the NSSI to the NSI according to the first request, where the indication information is used to indicate that the first network device is deleted from the NSI. In the case of NSSI, the first network device deletes the NSSI from the NSI according to the first request.

Optionally, after the step 303, the first network device and the second network device may further perform the following steps: the first network device sends a first response to the second network device, and the second network device receives the first information from the first network device And responding to, according to the first response, determining whether the first network device successfully adds the network slice subnet instance to the network slice instance, or deletes the network slice subnet instance from the network slice instance.

The first response is used to indicate whether the first network device successfully adds or deletes the NSSI in the NSI. Specifically, the first response may carry indication information indicating whether the first network device successfully adds or deletes the NSSI in the NSI. For example, the indication information can be represented by one bit. Illustratively, "1" can represent success, and "0" can represent failure.

In the method provided by the embodiment of the present application, when determining that the NSI needs to be modified, the second network device sends a first request to the first network device, where the first request includes an NSI ID, an NSSI ID, and indication information, and the first network device is configured according to the first Requesting to add or delete NSSI in the NSI, by adding or deleting NSSI in the NSI, the network function provided by the NSI can be changed, and when the NSSI is added or deleted in the NSI according to service requirements or network performance, the NSI can be made to meet the service requirement or Guarantee network performance.

The embodiment of the present application further provides a method for modifying an NSI, and an explanation of the foregoing related content in the method may be referred to above. As shown in FIG. 4, the method includes:

401. The second network device determines to modify the NSI.

The method by which the second network device determines to modify the NSI can be referred to above.

402. The second network device sends a second request to the first network device, where the first network device receives the second request from the second network device, the second request is used to request the first network device to create the NSSI, and the second request includes the network slice. Subnet related requirements.

Optionally, before the step 402, the method may further include: determining, by the second network device, whether an NSSI that meets a network slice subnet related requirement exists in the network, and if not, performing step 402.

Specifically, each NSSI may correspond to a capability parameter, and the second network device may determine, according to the capability parameter, whether an NSSI that meets a network slice subnet related requirement exists in the network.

For example, see Table 7, which shows the capability parameters corresponding to multiple NSSIs.

Table 7

Exemplarily, if the network slice subnet related requirement is that the delay is less than or equal to 5 us, the reported success rate (%) is greater than 60, the delivery success rate (%) is greater than 70, and the type is massive Internet of Things, the second network device determines NSSI 3 is the NSSI that satisfies the relevant requirements of the network slicing subnet. If the network slicing subnet related requirement is less than or equal to 1us, the reported success rate (%) is greater than 60, the delivery success rate (%) is greater than 70, and the type is massive IoT. Since there is no eligible NSSI in Table 7, Then the second network device determines that there is no NSSI in the network that meets the relevant requirements of the network slice subnet.

Exemplarily, the second network device may determine a network slice subnet related requirement according to the NSI modification request received from the third network device or another network device, and may also determine a network slice subnet related requirement according to the current running state of the NSI, and further The network slice subnet related requirements can be determined based on the principle of load balancing or the functional requirements of the NSI.

The network slice subnet related requirements may include one or more of the following requirements: (1) service level agreement (SLA) of the network slice subnet; (2) network key performance of the network slice subnet A key performance indicator (KPI) may specifically include one or more of the following information: latency, coverage, capacity, throughput, and reliability. Report success rate (comport success ratio) and success rate (command success ratio). The reporting success rate may refer to the proportion of successful uplink packet transmission; the delivery success rate may refer to the proportion of successful downlink data packet transmission; the coverage may refer to the distribution area of the terminal; the capacity may refer to the number of terminals that can be accommodated; (3) The type of network slice subnet. For example, enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), massive internet of things (MIoT), etc.; (4) network QoS of the sliced subnet; (5) network topology of the network slice subnet; (6) resource requirements of the network slice subnet; (7) network function related requirements of the network slice subnet, specific One or more of the following information may be included: network function type (type), network function capacity (capacity), network function location (location), network function capability (capabilities), and the like.

403. The first network device creates an NSSI according to the related requirements of the network slice subnet.

After step 403, the first network device may generate an NSSI ID for uniquely identifying the NSSI for the created NSSI.

404. The first network device sends an NSSI ID to the second network device, and the second network device receives the NSSI ID from the first network device.

405. The second network device sends a third request to the first network device, where the first network device receives the third request, where the third request includes an NSI ID, an NSSI ID, and indication information, where the indication information is used to indicate A network device adds the NSSI to the NSI.

Optionally, the third request may include multiple NSI IDs, and may also include multiple NSSI IDs, and may also include multiple indication information. In this case, the correspondence between the NSI ID and/or the NSSI ID and the indication information may be referred to. The above will not be repeated here.

406. The first network device adds the NSSI to the NSI according to the third request.

Optionally, after the step 406, the first network device and the second network device may further perform the following steps: the first network device sends a second response to the second network device, and the second network device receives the second information from the first network device Responding to, and determining, according to the second response, whether the first network device successfully adds the network slice subnet instance to the network slice instance.

The second response is used to indicate whether the first network device successfully adds the NSSI in the NSI. Specifically, the second response may carry indication information indicating whether the first network device successfully adds the NSSI in the NSI. For example, the indication information can be represented by one bit. Illustratively, "1" can represent success, and "0" can represent failure.

In the method provided by the embodiment of the present application, when determining that the NSI needs to be modified, the second network device sends a third request to the first network device, where the third request includes an NSI ID, an NSSI ID, and indication information, where the first network device is configured according to the third The NSI is added to the NSI. The NSI can be used to change the network function provided by the NSI. When the NSI is added to the NSI according to service requirements or network performance, the NSI can meet the service requirements or ensure network performance.

The embodiment of the present application further provides a method for modifying an NSI, and an explanation of the foregoing related content in the method may be referred to above. As shown in FIG. 5, the method may include:

501. The second network device determines to modify the NSI.

502. The second network device sends a fourth request to the first network device, where the first network device receives the fourth request, where the fourth request includes an NSI ID and a network slice subnet related requirement, where the fourth request is used. The first network device is requested to create an NSSI and add the NSSI to the NSI.

Optionally, before step 502, the second network device may further determine whether there is an NSSI in the network that meets a network slice subnet related requirement. If not, step 502 is performed. For the method of determining, refer to the related description in the above, and details are not described herein again.

See the related description above for the contents of the network slice subnet related requirements.

503. The first network device creates an NSSI according to the related requirements of the network slice subnet.

504. The first network device adds the NSSI to the NSI.

Optionally, the fourth request may include multiple network slice subnet related requirements and/or multiple NSI IDs, and the first network device may create multiple NSSIs according to multiple network slice subnet related requirements, and the multiple NSSIs are Add to one or more NSIs.

It should be noted that the fourth request may further include indication information, where the indication information may be used to indicate that the first network device adds the created NSSI to the NSI.

505. The first network device sends an NSSI ID to the second network device, where the second network device receives the NSSI ID sent by the first network device, and determines, according to the NSSI ID, that the first network device successfully adds the NSSI identified by the NSSI ID to the NSI. .

After the second network device receives the NSSI ID sent by the first network device, the second network device performs maintenance on the acquired NSSI ID, and performs other actions if necessary, for example, requesting the first network device to add the other NSI. NSSI identified by the NSSI ID.

Prior to step 505, the first network device may generate an NSSI ID for uniquely identifying the NSSI for the created NSSI.

In the method provided by the embodiment of the present application, when determining that the NSI needs to be modified, the second network device sends a fourth request to the first network device, where the fourth request includes an NSI ID and a network slice subnet related requirement, and the first network device is configured according to the first The request is to create an NSSI and add the NSSI to the NSI. By adding the NSSI in the NSI, the network function provided by the NSI can be changed. When the NSI is added to the NSI according to the service requirement or the network performance, the NSI can satisfy the service requirement or guarantee. Network performance. Moreover, in the case that there is no NSSI in the network that meets the requirements related to the network slice subnet, the process of adding the NSSI in the NSI provided by this embodiment is compared with the process of adding the NSSI in the NSI shown in FIG. 4 above. Can save signaling overhead.

The solution provided by the embodiment of the present application is mainly introduced from the perspective of interaction between the network elements. It can be understood that, in order to implement the above functions, the apparatus for modifying the NSI includes a corresponding hardware structure and/or software module for executing each function. Those skilled in the art will readily appreciate that the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

The embodiment of the present application may perform the division of the function module on the device for modifying the NSI according to the foregoing method example. For example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.

FIG. 6 shows a possible structural diagram of a device 60 involved in the above embodiment, which may be a first network device or a second network device, where the device is integrated. The 60 includes a processing unit 601 and a communication unit 602, and may further include a storage unit 603.

When the device 60 is the first network device, the processing unit 601 is configured to perform control management on the action of the first network device. For example, the processing unit 601 is configured to support the first network device to perform the processes 302 and 303 in FIG. 3, in FIG. Processes 402-406, processes 502-505 in FIG. 5, and/or actions performed by the first network device in other processes described in the embodiments of the present application. The communication unit 602 is configured to support communication of the first network device with other network entities, for example, with the second network device in FIG. 3, and the storage unit 603 is configured to store program codes and data of the first network device.

When the device 60 is a second network device, the processing unit 601 is configured to control and control the action of the second network device. For example, the processing unit 601 is configured to support the second network device to perform the processes 301 and 302 in FIG. 3, where Processes 401, 402, 404, and 405, processes 501, 502, and 505 in FIG. 5, and/or actions performed by the second network device in other processes described in the embodiments of the present application. The communication unit 602 is configured to support communication of the second network device with other network entities, for example, with the first network device in FIG. 3, and the storage unit 603 is configured to store program codes and data of the second network device.

The processing unit 601 can be a processor or a controller, and the communication unit 602 can be a communication interface, a transceiver, a transceiver circuit, etc., wherein the communication interface is a collective name and can include one or more interfaces. The storage unit 603 can be a memory. When the processing unit 601 is a processor, the communication unit 602 is a communication interface, and the storage unit 603 is a memory, the device involved in the embodiment of the present application can refer to the network device shown in FIG. 2. When the first network device is shown in FIG. 2, the processor 201 is configured to perform control management on the action of the first network device. For example, the processor 201 is configured to support the first network device to perform the process 302 in FIG. 3. And 303, processes 402-406 in FIG. 4, processes 502-505 in FIG. 5, and/or actions performed by the first network device in other processes described in the embodiments of the present application. When the second network device is shown in FIG. 2, the processor 201 is configured to control and control the action of the second network device. For example, the processor 201 is configured to support the second network device to perform the processes 301 and 302 in FIG. Processes 401, 402, 404, and 405 in FIG. 4, processes 501, 502, and 505 in FIG. 5, and/or actions performed by a second network device in other processes described in the embodiments of the present application.

The embodiment of the present application also provides a computer readable storage medium, including instructions, when executed on a computer, causing a computer to execute the above method.

The embodiment of the present application also provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the above method.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it 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 the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)).

Although the present application has been described herein in connection with the various embodiments, those skilled in the art can Other variations of the disclosed embodiments are achieved. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill several of the functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that the measures are not combined to produce a good effect.

While the present invention has been described in connection with the specific embodiments and embodiments thereof, various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the description and drawings are to be regarded as It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

A method for modifying a network slice instance, the method for modifying a network slice instance includes:

The first network device receives the first request from the second network device, where the first request includes an identifier of the network slice instance, an identifier of the network slice subnet instance, and indication information, where the indication information is used to indicate the first network The device adds the network slice subnet instance to the network slice instance, or is used to instruct the first network device to delete the network slice subnet instance from the network slice instance;

Adding, by the first network device, the network slice subnet instance to the network slice instance according to the first request, or deleting the network slice subnet from the network slice instance according to the first request Example.
The method of modifying a network slice instance according to claim 1, wherein adding the network slice subnet instance to the network slice instance corresponds to configuring an identifier of the network slice instance to the network slice In the service endpoint description of the network slice subnet instance identified by the identifier of the network instance, causing the network slice subnet instance to serve the network slice instance; deleting the network slice subnet instance from the network slice instance Corresponding to deleting the identifier of the network slice instance from a service endpoint description of the network slice subnet instance identified by the identifier of the network slice subnet instance, such that the network slice subnet instance is no longer the network slice The instance provides the service.
A method for modifying a network slice instance, the method for modifying a network slice instance includes:

The second network device determines to modify the network slice instance;

The second network device sends a first request to the first network device, where the first request includes an identifier of the network slice instance, an identifier of the network slice subnet instance, and indication information; the indication information is used to indicate the location The first network device adds the network slice subnet instance to the network slice instance, or is used to instruct the first network device to delete the network slice subnet instance from the network slice instance.
The method of modifying a network slice instance according to claim 3, wherein adding the network slice subnet instance to the network slice instance corresponds to configuring an identifier of the network slice instance to the network slice In the service endpoint description of the network slice subnet instance identified by the identifier of the network instance, causing the network slice subnet instance to serve the network slice instance; deleting the network slice subnet instance from the network slice instance Corresponding to deleting the identifier of the network slice instance from a service endpoint description of the network slice subnet instance identified by the identifier of the network slice subnet instance, such that the network slice subnet instance is no longer the network slice The instance provides the service.
The method for modifying a network slice instance according to claim 3 or 4, wherein the second network device determines to modify the network slice instance, including:

The second network device receives the modification request of the network slice instance; or the second network device determines to modify the network slice instance according to the current running state of the network slice instance and a preset rule.
An apparatus for modifying a network slice instance, where the apparatus for modifying a network slice instance includes:

a transceiver unit, configured to receive a first request from the second network device, where the first request includes an identifier of a network slice instance, an identifier of the network slice subnet instance, and indication information, where the indication information is used to indicate the modified network The device of the slice instance adds the network slice subnet instance to the network slice instance, or is used to instruct the device that modifies the network slice instance to delete the network slice subnet instance from the network slice instance;

a processing unit, configured to add the network slice subnet instance to the network slice instance according to the first request, or delete the network slice subnet instance from the network slice instance according to the first request .
The apparatus for modifying a network slice instance according to claim 6, wherein the adding the network slice subnet instance to the network slice instance corresponds to configuring an identifier of the network slice instance to the network slice In the service endpoint description of the network slice subnet instance identified by the identifier of the network instance, causing the network slice subnet instance to serve the network slice instance; deleting the network slice subnet instance from the network slice instance Corresponding to deleting the identifier of the network slice instance from a service endpoint description of the network slice subnet instance identified by the identifier of the network slice subnet instance, such that the network slice subnet instance is no longer the network slice The instance provides the service.
An apparatus for modifying a network slice instance, where the apparatus for modifying a network slice instance includes:

a processing unit, configured to determine to modify a network slice instance;

a transceiver unit, configured to send a first request to the first network device, where the first request includes an identifier of the network slice instance, an identifier of the network slice subnet instance, and indication information, where the indication information is used to indicate the The first network device adds the network slice subnet instance to the network slice instance, or is used to instruct the first network device to delete the network slice subnet instance from the network slice instance.
The apparatus for modifying a network slice instance according to claim 8, wherein the adding the network slice subnet instance to the network slice instance corresponds to configuring an identifier of the network slice instance to the network slice In the service endpoint description of the network slice subnet instance identified by the identifier of the network instance, causing the network slice subnet instance to serve the network slice instance; deleting the network slice subnet instance from the network slice instance Corresponding to deleting the identifier of the network slice instance from a service endpoint description of the network slice subnet instance identified by the identifier of the network slice subnet instance, such that the network slice subnet instance is no longer the network slice The instance provides the service.
The apparatus for modifying a network slice instance according to claim 8 or 9, wherein the processing unit is specifically configured to:

Receiving, by the transceiver unit, a modification request of the network slice instance; or determining, according to a current running state of the network slice instance and a preset rule, to modify the network slice instance.
An apparatus for modifying a network slice instance, wherein the apparatus for modifying a network slice instance comprises: a memory and a processor;

The memory is for storing a computer executing instructions, the processor executing the computer executed instructions stored by the memory to cause the apparatus for modifying a network slice instance to implement the modified network slice instance of claim 1 or 2. Methods.
An apparatus for modifying a network slice instance, wherein the apparatus for modifying a network slice instance comprises: a memory and a processor;

The memory is for storing a computer to execute instructions, the processor executing the computer-executed instructions stored by the memory to cause the apparatus for modifying a network slice instance to be implemented as claimed in any one of claims 3-5 The method of modifying the network slice instance.
A system for modifying a network slice instance, comprising: a first network device and a second network device; wherein the first network device is the device for modifying a network slice instance according to claim 6 or 7, The second network device is the device for modifying the network slice instance according to any one of claims 8-10; or the first network device is the device for modifying the network slice instance according to claim 11, The second network device is the device for modifying the network slice instance as claimed in claim 12.
A computer readable storage medium, comprising instructions that, when executed on a computer, cause the computer to perform the method of modifying a network slice instance as claimed in claim 1 or 2.
A computer readable storage medium, comprising instructions for causing the computer to perform a method of modifying a network slice instance according to any one of claims 3-5 when the instruction is run on a computer .
A computer program product, comprising instructions for causing a computer to perform the method of modifying a network slice instance as claimed in claim 1 or 2 when said instruction is run on a computer.
A computer program product, comprising instructions for causing a computer to perform a method of modifying a network slice instance as claimed in any one of claims 3-5 when said instructions are run on a computer.