CN113905401A - Sub-slice docking method, device and equipment - Google Patents
Sub-slice docking method, device and equipment Download PDFInfo
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- CN113905401A CN113905401A CN202111151958.7A CN202111151958A CN113905401A CN 113905401 A CN113905401 A CN 113905401A CN 202111151958 A CN202111151958 A CN 202111151958A CN 113905401 A CN113905401 A CN 113905401A
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Abstract
The invention provides a method, a device and equipment for butt joint of sub-slices, wherein the method comprises the following steps: generating current docking parameters according to predefined interface parameters for docking the core network sub-slice and the bearing network sub-slice; when a core network slice subnet instance NSSI is created, the current docking parameters are carried in a corresponding created NSSI interface, and the current docking parameters are sent to a core network slice subnet management function CN-NSSMF, so that the CN-NSSMF completes docking of the core network sub-slice and the carrier network sub-slice according to the received current docking parameters. The method, the device and the equipment can solve the problem that the conventional sub-slice docking method can only realize manual configuration and cannot realize automatic docking of the core network sub-slice and the bearing network sub-slice.
Description
Technical Field
The invention relates to the technical field of networks, in particular to a method, a device and equipment for sub-slice butt joint.
Background
At present, there is no perfect configuration scheme for interfacing between core Network sub-slices and bearer Network sub-slices between an NSMF (Network Slice Management Function) and a CN-NSSMF (core Network Slice sub-Network Management Function), so that when an NSMF is adopted to deploy slices, slices of different sub-domains need to be communicated in a manual configuration mode, and automatic interfacing of end-to-end Network slices cannot be realized.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method, an apparatus and a device for docking sub-slices, so as to solve the problem that the existing sub-slice docking method can only be configured manually, and cannot realize the automated docking of the sub-slices of the core network and the sub-slices of the carrier network.
In a first aspect, the present invention provides a method for documenting a sub-slice, which is applied to a network slice management function NSMF, and the method includes:
generating current docking parameters according to predefined interface parameters for docking the core network sub-slice and the bearing network sub-slice;
when a core network slice subnet instance NSSI is created, the current docking parameters are carried in a corresponding created NSSI interface, and the current docking parameters are sent to a core network slice subnet management function CN-NSSMF, so that the CN-NSSMF completes docking of the core network sub-slice and the carrier network sub-slice according to the received current docking parameters.
Preferably, before the step of generating the current docking parameters according to the predefined interface parameters for docking the core network sub-slice with the bearer network sub-slice, the method further includes:
defining the parameter name, data type and parameter file format of the interface parameter in the NSSI interface;
wherein, the parameter file format comprises: bearer network type identification field, docking equipment list field, docking virtual local area network identification VLAN ID field and docking port field.
Preferably, the parameter file format further includes a 5G service quality identifier 5QI field, a differentiated services code point DSCP field, and a virtual local area network priority VLAN PRI field;
the bearer network type identification field, the docking device list field, the docking VLAN ID field and the docking port field are optional fields, and the 5QI field, the DSCP field and the VLAN PRI field are optional fields.
Preferably, the data type is a Uniform Resource Locator (URL) type, and the parameter file format is a Comma Separated Value (CSV) file format;
the generating of the current docking parameters according to the predefined interface parameters for docking the core network sub-slice and the bearer network sub-slice specifically includes:
acquiring a butt joint VLAN ID corresponding to the sub-slice of the carrier network;
allocating core network side docking equipment and a docking port for the obtained docking VLAN ID;
generating a CSV file corresponding to the current docking parameters according to the parameter file format, the obtained docking VLAN ID, the allocated docking equipment and the docking port;
the sending the current docking parameter to a core network slice subnet management function CN-NSSMF specifically includes:
and sending the URL of the CSV file corresponding to the current docking parameter to the CN-NSSMF.
Preferably, the carrier network sub-slice is an IP carrier network sub-slice;
before or after the obtaining of the docking VLAN ID corresponding to the bearer network sub-slice, the method further includes:
acquiring a 5QI value corresponding to the core network sub-slice;
acquiring a bearer network type identifier corresponding to the IP bearer network sub-slice; and the number of the first and second groups,
obtaining a DSCP value corresponding to the 5QI value in the IP bearing network sub-slice;
generating the CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking device and the docking port, specifically comprising:
and generating the CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking equipment, the allocated docking port, the 5QI value and the DSCP value.
Preferably, the carrier network sub-slice is a Sliced Packet Network (SPN) carrier network sub-slice;
before or after the obtaining of the docking VLAN ID corresponding to the bearer network sub-slice, the method further includes:
acquiring a 5QI value corresponding to the core network sub-slice;
acquiring a bearer network type identifier corresponding to the SPN bearer network sub-slice; and the number of the first and second groups,
obtaining a DSCP value and a VLAN PRI value corresponding to the 5QI value in the SPN bearing network sub-slice;
generating the CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking device and the docking port, specifically comprising:
and generating the CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking equipment, the allocated docking port, the 5QI value, the DSCP value and the VLAN PRI value.
In a second aspect, the present invention provides a sub-slice docking method, which is applied to a core network slice subnet management function CN-NSSMF, and the method includes:
receiving a current docking parameter sent by a network slice management function NSMF, wherein the current docking parameter is generated by the NSMF according to a predefined interface parameter for docking a core network sub-slice and a bearer network sub-slice;
and completing the butt joint of the core network sub-slice and the bearing network sub-slice according to the received current butt joint parameters.
Preferably, the receiving the current docking parameter sent by the NSMF specifically includes:
receiving a Uniform Resource Locator (URL) of a Comma Separated Value (CSV) file corresponding to the current docking parameter sent by the NSMF, wherein the CSV file comprises a docking equipment list, a docking virtual local area network identifier (VLAN ID) and a docking port, and the docking equipment list comprises one or more docking equipment;
the completing the docking of the core network sub-slice and the bearer network sub-slice according to the received current docking parameters specifically includes:
acquiring the CSV file according to the URL;
and configuring the docking VLAN ID on a docking port of corresponding docking equipment according to the CSV file.
Preferably, the CSV file further includes a bearer network type identifier, a 5G service quality identifier 5QI value, and a differentiated services code point DSCP value corresponding to the 5QI value;
while or after configuring the docking VLAN ID on the docking port of the corresponding docking device according to the CSV file, the method further comprises:
transmitting the 5QI value and a DSCP value corresponding to the 5QI value to the docking device.
Preferably, the CSV file further includes a bearer network type identifier, a 5QI value, and a DSCP value and a VLAN PRI value corresponding to the 5QI value;
while or after configuring the docking VLAN ID on the docking port of the corresponding docking device according to the CSV file, the method further comprises:
and transmitting the 5QI value and the DSCP value and the VLAN PRI value corresponding to the 5QI value to the docking device.
In a third aspect, the present invention provides a sub-slice docking apparatus, which is applied to a network slice management function NSMF, and includes:
the docking parameter generation module is used for generating current docking parameters according to predefined interface parameters for docking the core network sub-slice and the carrier network sub-slice;
and the docking parameter sending module is connected with the docking parameter generating module and is used for carrying the current docking parameters in a corresponding creation NSSI interface when a core network slice subnet instance NSSI is created and sending the current docking parameters to a core network slice subnet management function CN-NSSMF so that the CN-NSSMF completes the docking of the core network sub-slice and the carrier network sub-slice according to the received current docking parameters.
In a fourth aspect, the present invention provides a sub-slice docking apparatus, which is applied to a network slice management function NSMF, and includes:
a docking parameter receiving module, configured to receive a current docking parameter sent by an NSMF, where the current docking parameter is generated by the NSMF according to a predefined interface parameter for docking a core network sub-slice and a bearer network sub-slice;
and the sub-slice docking module is connected with the docking parameter receiving module and is used for completing docking of the core network sub-slice and the carrier network sub-slice according to the received current docking parameters.
In a fifth aspect, the present invention provides a sub-slice docking apparatus, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the sub-slice docking method according to the first aspect or the second aspect.
According to the sub-slice docking method, the device and the equipment provided by the invention, the NSMF generates the current docking parameters according to the predefined interface parameters for docking the core network sub-slices and the carrier network sub-slices, then when a core network slice subnet instance NSSI is created, the current docking parameters are carried in the corresponding created NSSI interface, and the current docking parameters are sent to a core network slice subnet management function CN-NSSMF, so that the CN-NSSMF can complete the docking of the core network sub-slices and the carrier network sub-slices according to the received current docking parameters, and the problem that the conventional sub-slice docking method can only realize the automatic docking of the core network sub-slices and the carrier network sub-slices through manual configuration is solved.
Drawings
FIG. 1: is a schematic connection diagram of NSMF and NSSMF in the embodiment of the present invention;
FIG. 2: is a flow chart of a sub-slice docking method of embodiment 1 of the present invention;
FIG. 3: is a flow chart of a sub-slice docking method of embodiment 2 of the present invention;
FIG. 4: is a schematic structural diagram of a sub-slice docking device in embodiment 3 of the present invention;
FIG. 5: is a schematic structural diagram of a sub-slice docking device in embodiment 4 of the present invention;
FIG. 6: is a schematic structural diagram of a sub-slice docking device in embodiment 5 of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description will be made with reference to the accompanying drawings.
It is to be understood that the specific embodiments and figures described herein are merely illustrative of the invention and are not limiting of the invention.
It is to be understood that the embodiments and features of the embodiments can be combined with each other without conflict.
It is to be understood that, for the convenience of description, only parts related to the present invention are shown in the drawings of the present invention, and parts not related to the present invention are not shown in the drawings.
It should be understood that each unit and module related in the embodiments of the present invention may correspond to only one physical structure, may also be composed of multiple physical structures, or multiple units and modules may also be integrated into one physical structure.
It will be understood that, without conflict, the functions, steps, etc. noted in the flowchart and block diagrams of the present invention may occur in an order different from that noted in the figures.
It is to be understood that the flowchart and block diagrams of the present invention illustrate the architecture, functionality, and operation of possible implementations of systems, apparatus, devices and methods according to various embodiments of the present invention. Each block in the flowchart or block diagrams may represent a unit, module, segment, code, which comprises executable instructions for implementing the specified function(s). Furthermore, each block or combination of blocks in the block diagrams and flowchart illustrations can be implemented by a hardware-based system that performs the specified functions or by a combination of hardware and computer instructions.
It is to be understood that the units and modules involved in the embodiments of the present invention may be implemented by software, and may also be implemented by hardware, for example, the units and modules may be located in a processor.
Summary of the application
The 5G network slice is a networking on demand manner, which allows operators to cut out multiple virtual end-to-end networks on a unified infrastructure, and each network is logically isolated from a wireless network, a bearer network, and a core network to adapt to different service requirements. An end-to-end 5G slice is a combination of subdomain slices of the radio network, the bearer network and the core network. Since 5G network slices involve the lifecycle management of multiple subnet slices in the operator network, wireless network, bearer network, core network, and the tunneling between subnet slices. In order to realize the automatic management of the network slice, the management function of the network slice is newly added in the 5G network, and the management function comprises the following steps: a communication Service Management function csmf (communication Service Management function), a network Slice Management function nsmf (network Slice Management function), and a network Slice Subnet Management function nssmf (network Slice Subnet Management function).
The NSMF is a network slice management function, receives a network slice deployment request issued from the CSMF, decomposes an SLA (Service Level Agreement) requirement of a network slice into an SLA requirement of a network slice subnet, and issues the network slice subnet deployment request to the NSSMF.
NSSMF is a network slice subnet management function, and is divided into a wireless NSSMF (AN-NSSMF), a bearer NSSMF (TN-NSSMF), and a core network NSSMF (CN-NSSMF) according to professional fields, and fig. 1 shows a connection diagram of NSMF and NSSMF, where each field NSSMF receives a network slice subnet deployment request issued from NSMF, converts AN SLA request of a network slice subnet into a network element service parameter, and issues the network element service parameter to a network element.
In the current implementation scheme of slicing, when an end-to-end slice is created, the butting of the bearer Network sub-slice and the core Network sub-slice needs to be manually configured in a Network management system, specifically, a bearer Network manager allocates a corresponding link priority to the end-to-end slice and allocates a Virtual Local Area Network Identity (VLAN ID) to the end-to-end slice, notifies the Network manager of the core Network of the VLAN number, and then performs the butting of the VLAN number on the edge side Network devices of the core Network and the bearer Network, thereby achieving the slice punching. This implementation does not have automated docking capabilities, as it cannot be configured by the NSMF.
In view of the above technical problems, the present application provides a method, an apparatus, and a device for docking sub-slices, where an NSMF first generates a current docking parameter according to a predefined interface parameter for docking a core Network sub-Slice with a bearer Network sub-Slice, and then when a core Network Slice sub-Network Instance NSSI (Network Slice sub-Network Instance) is created, the current docking parameter is carried in a corresponding created NSSI interface, and the current docking parameter is sent to a CN-NSSMF, so that the CN-NSSMF can complete docking of the core Network sub-Slice with the bearer Network sub-Slice according to the received current docking parameter, thereby solving a problem that an existing sub-Slice docking method can only achieve automatic docking of the core Network sub-Slice and the bearer Network sub-Slice through manual configuration.
Having described the general principles of the present application, various non-limiting embodiments of the present application will now be described with reference to the accompanying drawings.
Example 1:
the present embodiment provides a sub-slice docking method, which is applied to a network slice management function NSMF, as shown in fig. 2, the method includes:
step S102: and generating current docking parameters according to predefined interface parameters for docking the core network sub-slice and the bearer network sub-slice.
Step S104: when a core network slice subnet instance NSSI is created, the current docking parameters are carried in a corresponding created NSSI interface, and the current docking parameters are sent to a core network slice subnet management function CN-NSSMF, so that the CN-NSSMF completes docking of a core network sub-slice and a carrier network sub-slice according to the received current docking parameters.
In this embodiment, in order to implement automatic docking of a core network sub-slice and a bearer network sub-slice, interface parameters are defined in advance in creating an NSSI interface, and specifically include a parameter name, a data type, and a parameter file format, where the parameter file format may include: bearer network type identification field, docking device list field, docking VLAN ID field, and docking port field. The bearer type identifier field corresponds to a bearer type, for example, 1 indicates an SPN (Slicing Packet Network) bearer Network, and 2 indicates an IP bearer Network. The docking device list field and the docking port field correspond to the core network side docking device and the docking port, and the docking VLAN ID field corresponds to the bearer network VLAN ID number. Since each subfield slice has different priority information, the core network uses 5QI (5G QoS Identifier, 5G service quality Identifier) as an Identifier, and the bearer network uses DSCP (Differentiated Services Code Point) or DSCP + VLAN PRI (virtual local area network priority) as an Identifier, in order to better implement the docking, the parameter file format may further include: a 5QI field, a DSCP field and a VLAN PRI field, which correspond to the mapping relationship between the 5QI of the core network sub-slice and the DSCP of the bearer network sub-slice or DSCP + VLAN PRI.
Specifically, the present invention defines a bearer network deployment information parameter (hereinafter referred to as an interface parameter) in an interface between the NSMF and the CN-NSSMF, where the interface parameter is located in the NSSI interface. The specific location of the parameter is as follows, wherein the name is to create an NSSI interface, the interface is an existing interface, the interface calling mode is POST, the slice subnet instance is created by a restful api mode, and the apiVersion field is the version of the api, such as v 1. The defined interface parameters are supplementary to the interface, the interface is from NSMF to NSSMF, the defined parameter name is TransDeployInfoFileUrl, which is the parameters for the down-hanging of the existing parameters of extension, and exists in the interface as the necessary parameters:
specifically, when the interface parameter acts on the NSMF to create a core network sub-network slice instance (NSSI), the interface parameter is used to specify the docking deployment information of the core network sub-slice and the bearer network sub-slice.
Specifically, the transdeploylnfofileurl parameter may be defined as:
description of the parameters:
in the above format, the bearer network type identifier field, the docking device list field, the docking VLAN ID field, and the docking port field (i.e., the port field) are optional fields, and the 5QI field, the DSCP field, and the VLAN PRI field are optional fields, for example, when the configuration by the NSMF is not required, the 5QI field, the DSCP field, and the VLAN PRI field may not be present, or these field values are all null. The data type is preferably a Uniform Resource Locator (URL) type, and the parameter file format is preferably a Comma Separated Value (CSV) file format.
When the bearer network type identification field is 1, the interface with the SPN bearer network sub-slice is represented, and the specific format comprises a bearer network type identification field, an interface device list field, an interface VLAN ID field, a port field, a 5QI field, a DSCP field and a VLAN PRI field. The docking device list field corresponds to a core network side docking device, such as an IP address list of a DC GW (data center GateWay) and a UPF (User Plane Function) edge device, and the value is null for a newly created slice NSMF if the docking device cannot be determined. The VLAN ID field is butted with a VLAN ID number of a bearer network; the port field corresponds to a docking port; the 5QI field, the DSCP field and the VLAN PRI field correspond to the mapping relation between the core network side 5QI and the bearing network side DSCP + VLAN PRI, and a plurality of elements are divided by using "|". Such as:
1,10.22.33.44|10.22.33.45，1，10GE1/0/1.2，4,34,4
wherein, 1 represents the sub-slice docking with the SPN bearer network, 10.22.33.44 and 10.22.33.45 correspond to the IP addresses of two docking devices in the docking device list, 1 corresponds to the docking VLAN ID, 10GE1/0/1.2 corresponds to the docking port, 4 corresponds to 5QI, 34 corresponds to DSCP, and 4 corresponds to the VLAN PRI.
When the bearer network type identification field is 2, the bearer network type identification field is in butt joint with the IP bearer network sub-slice, and the specific format comprises the bearer network type identification field, a butt joint equipment list field, a butt joint VLAN ID field, a port field, a 5QI field and a DSCP field. Wherein, the 5QI field and the DSCP field correspond to the mapping relation between the 5QI at the core network side and the DSCP at the bearing network side. Multiple elements are partitioned using "|". Such as:
2,10.22.33.44|10.22.33.45，1，10GE1/0/1.2，4，34
wherein 2 represents the sub-slice docking with the IP bearer network, 10.22.33.44 and 10.22.33.45 correspond to the IP addresses of two docking devices in the docking device list, 1 corresponds to the docking VLAN ID, 10GE1/0/1.2 corresponds to the docking port, 4 corresponds to 5QI, 4 corresponds to DSCP, and 34 corresponds to VLAN PRI.
Optionally, generating the current docking parameter according to a predefined interface parameter for docking the core network sub-slice and the bearer network sub-slice, which may specifically include:
acquiring a butt joint VLAN ID corresponding to the sub-slice of the carrier network;
allocating core network side docking equipment and a docking port for the obtained docking VLAN ID;
generating a CSV file corresponding to the current docking parameters according to the parameter file format, the obtained docking VLAN ID, the allocated docking equipment and the docking port;
sending the current docking parameters to a core network slice subnet management function CN-NSSMF, which may specifically include:
and sending the URL of the CSV file corresponding to the current docking parameter to the CN-NSSMF.
In this embodiment, taking the carrier network sub-slice as the IP carrier network sub-slice as an example, the interaction flow for implementing the docking between the core network sub-slice and the IP carrier network sub-slice when creating the core network sub-slice is specifically as follows:
(1) NSMF collects the priority information of each sub-domain required by the current creation of the sub-slice, 5QI is used as an identifier in a wireless access network and a core network, DSCP is used as an identifier in an IP bearing network, namely, NSMF obtains a 5QI value corresponding to the sub-slice of the core network and a DSCP value corresponding to the 5QI value in the sub-slice of the IP bearing network, obtains the type identifier of the bearing network corresponding to the sub-slice of the IP bearing network, collects the available range of the VLAN butt joint of the sub-slice of the IP bearing network, and reports the information in a collection mode through manual input or NSSMF.
(2) The NSMF selects a docking VLAN ID in an available range (such as an available docking VLAN ID space) of the collected IP bearer network sub-slice docking identifications, and allocates a core network side docking device and a docking port for the docking VLAN ID.
(3) And the NSMF generates a corresponding CSV file according to the fields collected in the steps and the definitions in the parameter file format and the parameter description.
(4) When the NSMF creates a core network slice subnet instance NSSI, the NSSI interface is created to carry the defined TransDeployInfoFileUrl interface parameter, and the URL of the CVS file is sent to the CN-NSSMF.
(5) The CN-NSSMF obtains the CSV file for configuring the docking device through the URL in step 4, and the format includes the following contents: bearer network type identification, a docking device list, a docking VLAN ID, a port, 5QI, and DSCP. The docking devices may be one or more, and the docking ports corresponding to the multiple docking devices may be the same or different, where if the docking ports are the same, the port may be one, and if the docking ports are different, the ports may be multiple and respectively correspond to the docking devices.
In this embodiment, after receiving the URL, the CN-NSSMF may obtain the CSV file according to the URL, and then configure a docking VLAN ID on a docking port of the corresponding docking device according to the CSV file, for example, the docking device list includes 10.22.33.44 and 10.22.33.45 docking devices, and the docking port is 10GE1/0/1.2, then the CN-NSSMF configures a docking VLAN ID on the docking port 10GE1/0/1.2 of 10.22.33.44 and 10.22.33.45, respectively, and sends a 5QI value and a DSCP value corresponding to the 5QI value to the docking device while or after configuring the docking VLAN ID.
After completing the docking of the core network sub-slice and the IP bearer network sub-slice through the above configuration, when the data traffic is transmitted from the IP bearer network to the core network docking device, for example, the UPF or the DC GW may specifically include:
(A) and receiving the VLAN ID and DSCP information data message carried by the IP bearing network side on a port of the core network side butt joint equipment.
(B) And the butt joint equipment strips the DSCP information in the IP bearing network message, adds a 5QI attribute in the data message according to the mapping relation with the 5QI of the core network, and constructs the data message into the core network data message.
(C) An internal Virtual Network translation is performed on the VLAN ID on the docking device and sent into an internal Virtual Network of core Network sub-slices partitioned in VLANs or VXLANs (Virtual extensible Local Area networks).
When the data traffic is transmitted from the core network interface device to the IP bearer network, the method may specifically include:
(a) and the core network side butt joint equipment peels off the 5QI attribute in the data message, and adds the encapsulation of the DSCP information in the data message according to the mapping relation between the 5QI and the DSCP of the IP bearing network, and constructs the data message into the IP bearing network message.
(b) And the conversion between the virtual network in the core network and the docking VLAN ID is carried out on the docking equipment, and the converted ID is sent to the IP bearing network through a port of the docking equipment.
In this embodiment, taking the carrier network sub-slice as the SPN carrier network sub-slice as an example, an interaction procedure for implementing the docking of the core network sub-slice and the SPN carrier network sub-slice when creating the core network sub-slice is specifically as follows:
1) NSMF collects the priority information of each sub-domain required by the current creation of the sub-slice, 5QI is used as an identifier in a wireless access network and a core network, DSCP + VLAN PRI is used as an identifier in an SPN bearing network, namely, the NSMF obtains a 5QI value corresponding to the core network sub-slice, a DSCP value corresponding to the 5QI value in the SPN bearing network sub-slice and a VLAN PRI value, obtains the bearing network type identifier corresponding to the SPN bearing network sub-slice at the same time, collects the available range of the butt joint VLAN ID of the SPN bearing network sub-slice, and the collection mode can adopt manual input or report through NSSMF and the like.
2) The NSMF selects a docking VLAN ID in an available range (such as an available docking VLAN ID space) of the collected SPN bearer network sub-slice docking identification, and allocates a core network side docking device and a docking port for the docking VLAN ID.
3) And the NSMF generates a corresponding CSV file according to the fields collected in the steps and the definitions in the parameter file format and the parameter description.
4) When the NSMF creates a core network slice subnet instance NSSI, the NSSI interface is created to carry the defined TransDeployInfoFileUrl interface parameter, and the URL of the CVS file is sent to the CN-NSSMF.
5) The CN-NSSMF obtains the CSV file for configuring the docking device through the URL in step 4, and the format includes the following contents: bearer network type identification, a docking device list, a docking VLAN ID, port, 5QI, DSCP, VLAN PRI. The docking devices may be one or more, and the docking ports corresponding to the multiple docking devices may be the same or different, where if the docking ports are the same, the port may be one, and if the docking ports are different, the ports may be multiple and respectively correspond to the docking devices.
In this embodiment, after receiving the URL, the CN-NSSMF may obtain the CSV file according to the URL, and then configure a docking VLAN ID on a docking port of the corresponding docking device according to the CSV file, for example, the docking device list includes 10.22.33.44 docking devices, and the docking port is 10GE1/0/1.2, so that the CN-NSSMF configures a docking VLAN ID on a 10GE1/0/1.2 port of 10.22.33.44, and sends a 5QI value, and a DSCP value and a VLAN PRI value corresponding to the 5QI value to the docking device while or after configuring the docking VLAN ID.
After completing the docking of the core network sub-slice and the SPN bearer sub-slice through the above configuration, when the data traffic is transmitted from the SPN bearer to the core network docking device, such as the UPF or the DC GW, the method may specifically include:
A) and receiving VLAN ID, DSCP and VLAN PRI information data messages carried by the SPN bearing network side on a port of the core network side butt joint equipment.
B) The docking equipment strips the DSCP and VLAN PRI information in the SPN bearing network message, adds 5QI attribute in the data message according to the mapping relation with the 5QI of the core network, and constructs the data message as the core network data message.
C) An internal virtual network translation is performed on the docking device for the VLAN ID and sent into an internal virtual network of a core network sub-slice divided in VLANs or vxlans.
When the data traffic is transferred from the core network interface device to the SPN bearer, the method specifically includes:
a) and the core network side butt joint equipment peels off the 5QI attribute in the data message, and according to the mapping relation between the 5QI and the DSCP and the VLAN PRI of the SPN bearing network, the encapsulation of the DSCP and the VLAN PRI information is added in the data message, and the data message is constructed into the SPN priority message.
b) And performing the conversion of the docking VLAN ID on the internal network of the core network on the docking equipment, and sending the converted VLAN ID to the SPN bearer network through a port of the docking equipment.
Aiming at the problems that the current core network sub-slice and the current carrier network sub-slice can only be configured and butted in a network management system manually and can not be butted automatically through a slice management and arrangement system, the invention defines the butting interface parameter of NSMF and CN-NSSMF, and determines slice bearing deployment information through the interface parameter in the process of creating a core network slice sub-network example by NSMF, thereby realizing the automatic butting of the core network sub-slice and the carrier network sub-slice.
In the sub-slice docking method provided by the embodiment of the present invention, the NSMF first generates a current docking parameter according to a predefined interface parameter for docking the core network sub-slice with the carrier network sub-slice, and then when a core network slice subnet instance NSSI is created, the current docking parameter is carried in a corresponding created NSSI interface, and the current docking parameter is sent to a core network slice subnet management function CN-NSSMF, so that the CN-NSSMF can complete the docking of the core network sub-slice with the carrier network sub-slice according to the received current docking parameter, thereby solving the problem that the existing sub-slice docking method can only be manually configured and cannot realize the automatic docking of the network core sub-slice and the carrier network sub-slice.
Example 2:
as shown in fig. 3, this embodiment provides a sub-slice docking method, which is applied in CN-NSSMF, and the method includes:
step S202: receiving current docking parameters sent by the NSMF, wherein the current docking parameters are generated by the NSMF according to predefined interface parameters for docking the core network sub-slice and the bearer network sub-slice;
step S204: and completing the butt joint of the core network sub-slice and the bearing network sub-slice according to the received current butt joint parameters.
Optionally, receiving the current docking parameter sent by the NSMF may specifically include:
receiving a URL (uniform resource locator) of a CSV (China Mobile protocol) file corresponding to the current docking parameters sent by NSMF (non-trivial details multimedia interface), wherein the CSV file comprises a docking equipment list, a docking VLAN (virtual local area network) ID (identity) and a docking port, and the docking equipment list comprises one or more docking equipment;
the completing the docking of the core network sub-slice and the bearer network sub-slice according to the received current docking parameters may specifically include:
obtaining the CSV file according to the URL;
and configuring a docking VLAN ID on a docking port of the corresponding docking equipment according to the CSV file.
Optionally, the CSV file further includes a bearer network type identifier, a 5QI value, and a DSCP value corresponding to the 5QI value;
while or after configuring the docking VLAN ID on the docking port of the corresponding docking device according to the CSV file, the method may further include:
transmitting the 5QI value and the DSCP value corresponding to the 5QI value to the dock.
Optionally, the CSV file further includes a bearer network type identifier, a 5QI value, and a DSCP value and a VLAN PRI value corresponding to the 5QI value;
while or after configuring the docking VLAN ID on the docking port of the corresponding docking device according to the CSV file, the method may further include:
and transmitting the 5QI value and the DSCP value and the VLAN PRI value corresponding to the 5QI value to the docking device.
Example 3:
as shown in fig. 4, the present embodiment provides a sub-slice docking apparatus, which is applied in a network slice management function NSMF, and the apparatus includes:
a docking parameter generating module 12, configured to generate a current docking parameter according to a predefined interface parameter for docking the core network sub-slice and the bearer network sub-slice;
and the docking parameter sending module 14 is connected to the docking parameter generating module 12, and is configured to carry the current docking parameter in the corresponding creation NSSI interface when creating the core network slice subnet instance NSSI, and send the current docking parameter to the core network slice subnet management function CN-NSSMF, so that the CN-NSSMF completes docking of the core network sub-slice and the bearer network sub-slice according to the received current docking parameter.
Optionally, the method may further include:
the docking parameter definition module is used for defining the parameter name, the data type and the parameter file format of the interface parameter in the NSSI interface;
wherein, the parameter file format comprises: bearer network type identification field, docking equipment list field, docking virtual local area network identification VLAN ID field and docking port field.
Optionally, the parameter file format further includes a 5G service quality identifier 5QI field, a differentiated services code point DSCP field, and a virtual local area network priority VLAN PRI field;
the bearer network type identification field, the docking equipment list field, the docking VLAN ID field and the docking port field are optional fields, and the 5QI field, the DSCP field and the VLAN PRI field are optional fields.
Optionally, the data type is a Uniform Resource Locator (URL) type, and the parameter file format is a Comma Separated Value (CSV) file format;
optionally, the docking parameter generating module 12 may specifically include:
the first acquisition unit is used for acquiring the butt joint VLAN ID corresponding to the sub-slice of the carrier network;
the distribution unit is used for distributing core network side docking equipment and a docking port for the obtained docking VLAN ID;
the generating unit is used for generating a CSV file corresponding to the current docking parameters according to the format of the parameter file, the obtained docking VLAN ID, the allocated docking equipment and the docking port;
the docking parameter sending module 14 is specifically configured to, when creating the core network slice subnet instance NSSI, carry the current docking parameter in the corresponding created NSSI interface, and send the URL of the CSV file corresponding to the current docking parameter to the CN-NSSMF.
Optionally, the carrier network sub-slice is an IP carrier network sub-slice;
optionally, the NSMF may further include:
the second acquisition unit is used for acquiring a 5QI value corresponding to the core network sub-slice;
a third obtaining unit, configured to obtain a bearer network type identifier corresponding to the IP bearer network sub-slice;
a fourth obtaining unit, configured to obtain a DSCP value corresponding to the 5QI value in the IP bearer network sub-slice;
optionally, the generating unit is specifically configured to generate a CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking device, the allocated docking port, the 5QI value, and the DSCP value.
Optionally, the carrier network sub-slice is a sliced packet network SPN carrier network sub-slice;
optionally, the NSMF may further include:
a fifth obtaining unit, configured to obtain a bearer network type identifier corresponding to the SPN bearer network sub-slice;
a sixth obtaining unit, configured to obtain a DSCP value and a VLAN PRI value that correspond to the 5QI value in the SPN carrier network sub-slice;
optionally, the generating unit is specifically configured to generate a CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking device, the allocated docking port, the 5QI value, the DSCP value, and the VLAN PRI value.
Example 4:
as shown in fig. 5, the present embodiment provides a sub-slice docking apparatus, which is applied in a network slice management function NSMF, and the apparatus includes:
a docking parameter receiving module 32, configured to receive a current docking parameter sent by the NSMF, where the current docking parameter is generated by the NSMF according to a predefined interface parameter for docking the core network sub-slice and the bearer network sub-slice;
and the sub-slice docking module 34 is connected to the docking parameter receiving module 32, and is configured to complete docking of the core network sub-slice and the carrier network sub-slice according to the received current docking parameter.
Optionally, the docking parameter receiving module 32 is specifically configured to receive a URL of a CSV file corresponding to the current docking parameter sent by the NSMF, where the CSV file includes a docking device list, a docking VLAN ID, and a docking port, and the docking device list includes one or more docking devices;
the sub-slice docking module 34 specifically includes:
a CSV file obtaining unit, configured to obtain a CSV file according to the URL;
and the docking configuration unit is used for configuring the docking VLAN ID on the docking port of the corresponding docking equipment according to the CSV file.
Optionally, the CSV file further includes a bearer network type identifier, a 5QI value, and a DSCP value corresponding to the 5QI value;
optionally, the CN-NSSMF may further include:
the first sending module is configured to send the 5QI value and the DSCP value corresponding to the 5QI value to the docking device.
Optionally, the CSV file further includes a bearer network type identifier, a 5QI value, and a DSCP value and a VLAN PRI value corresponding to the 5QI value;
optionally, the CN-NSSMF may further include:
and the second sending module is used for sending the 5QI value, the DSCP value corresponding to the 5QI value and the VLAN PRI value to the docking equipment.
Example 5:
referring to fig. 6, the present embodiment provides a sub-slice docking apparatus, including a memory 21 and a processor 22, where the memory 21 stores therein a computer program, and the processor 22 is configured to execute the computer program to perform the sub-slice docking method in embodiment 1 or embodiment 2.
The memory 21 is connected to the processor 22, the memory 21 may be a flash memory, a read-only memory or other memories, and the processor 22 may be a central processing unit or a single chip microcomputer.
In the sub-slice docking method, the apparatus, and the device provided in embodiments 2 to 5, the NSMF first generates a current docking parameter according to a predefined interface parameter for docking the core network sub-slice with the bearer network sub-slice, and then when the core network slice subnet instance NSSI is created, carries the current docking parameter in the corresponding created NSSI interface, and sends the current docking parameter to the core network slice subnet management function CN-NSSMF, so that the CN-NSSMF can complete docking of the core network sub-slice with the bearer network sub-slice according to the received current docking parameter, thereby solving a problem that an existing sub-slice docking method can only be manually configured and cannot achieve automatic docking of the core network sub-slice and the bearer network sub-slice.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (13)
1. A sub-slice docking method applied to a Network Slice Management Function (NSMF), the method comprising:
generating current docking parameters according to predefined interface parameters for docking the core network sub-slice and the bearing network sub-slice;
when a core network slice subnet instance NSSI is created, the current docking parameters are carried in a corresponding created NSSI interface, and the current docking parameters are sent to a core network slice subnet management function CN-NSSMF, so that the CN-NSSMF completes docking of the core network sub-slice and the carrier network sub-slice according to the received current docking parameters.
2. The sub-slice docking method of claim 1, wherein before the step of generating current docking parameters according to predefined interface parameters for docking the core network sub-slice with the bearer network sub-slice, the method further comprises:
defining the parameter name, data type and parameter file format of the interface parameter in the NSSI interface;
wherein, the parameter file format comprises: bearer network type identification field, docking equipment list field, docking virtual local area network identification VLAN ID field and docking port field.
3. The sub-slice docking method according to claim 2, wherein the parameter file format further comprises a 5G quality of service identifier 5QI field, a differentiated services code point DSCP field, and a virtual local area network priority VLAN PRI field;
the bearer network type identification field, the docking device list field, the docking VLAN id field and the docking port field are optional fields, and the 5QI field, the DSCP field and the VLAN PRI field are optional fields.
4. The sub-slice docking method according to claim 3, wherein the data type is a Uniform Resource Locator (URL) type, and the parameter file format is a Comma Separated Value (CSV) file format;
the generating of the current docking parameters according to the predefined interface parameters for docking the core network sub-slice and the bearer network sub-slice specifically includes:
acquiring a butt joint VLAN ID corresponding to the sub-slice of the carrier network;
allocating core network side docking equipment and a docking port for the obtained docking VLAN ID;
generating a CSV file corresponding to the current docking parameters according to the parameter file format, the obtained docking VLAN ID, the allocated docking equipment and the docking port;
the sending the current docking parameter to a core network slice subnet management function CN-NSSMF specifically includes:
and sending the URL of the CSV file corresponding to the current docking parameter to the CN-NSSMF.
5. The sub-slice docking method of claim 4, wherein the carrier network sub-slice is an IP carrier network sub-slice;
before or after the obtaining of the docking VLAN ID corresponding to the bearer network sub-slice, the method further includes:
acquiring a 5QI value corresponding to the core network sub-slice;
acquiring a bearer network type identifier corresponding to the IP bearer network sub-slice; and the number of the first and second groups,
obtaining a DSCP value corresponding to the 5QI value in the IP bearing network sub-slice;
generating the CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking device and the docking port, specifically comprising:
and generating the CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking equipment, the allocated docking port, the 5QI value and the DSCP value.
6. The sub-slice docking method of claim 4, wherein the bearer network sub-slice is a Sliced Packet Network (SPN) bearer network sub-slice;
before or after the obtaining of the docking VLAN ID corresponding to the bearer network sub-slice, the method further includes:
acquiring a 5QI value corresponding to the core network sub-slice;
acquiring a bearer network type identifier corresponding to the SPN bearer network sub-slice; and the number of the first and second groups,
obtaining a DSCP value and a VLAN PRI value corresponding to the 5QI value in the SPN bearing network sub-slice;
generating the CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking device and the docking port, specifically comprising:
and generating the CSV file corresponding to the current docking parameter according to the parameter file format, the obtained docking VLAN ID, the allocated docking equipment, the allocated docking port, the 5QI value, the DSCP value and the VLAN PRI value.
7. A subslice docking method is applied to a core network slice subnet management function CN-NSSMF, and comprises the following steps:
receiving a current docking parameter sent by a network slice management function NSMF, wherein the current docking parameter is generated by the NSMF according to a predefined interface parameter for docking a core network sub-slice and a bearer network sub-slice;
and completing the butt joint of the core network sub-slice and the bearing network sub-slice according to the received current butt joint parameters.
8. The sub-slice docking method according to claim 7, wherein the receiving the current docking parameters sent by the NSMF specifically includes:
receiving a Uniform Resource Locator (URL) of a Comma Separated Value (CSV) file corresponding to the current docking parameter sent by the NSMF, wherein the CSV file comprises a docking equipment list, a docking virtual local area network identifier (VLAN ID) and a docking port, and the docking equipment list comprises one or more docking equipment;
the completing the docking of the core network sub-slice and the bearer network sub-slice according to the received current docking parameters specifically includes:
acquiring the CSV file according to the URL;
and configuring the docking VLAN ID on a docking port of corresponding docking equipment according to the CSV file.
9. The sub-slice docking method according to claim 8, wherein the CSV file further includes a bearer network type identifier, a 5G quality of service identifier 5QI value, and a DSCP value corresponding to the 5QI value;
while or after configuring the docking VLAN ID on the docking port of the corresponding docking device according to the CSV file, the method further comprises:
transmitting the 5QI value and a DSCP value corresponding to the 5QI value to the docking device.
10. The sub-slice docking method according to claim 8, wherein the CSV file further includes a bearer network type identifier, a 5QI value, and a DSCP value and a VLAN PRI value corresponding to the 5QI value;
while or after configuring the docking VLAN ID on the docking port of the corresponding docking device according to the CSV file, the method further comprises:
and transmitting the 5QI value and the DSCP value and the VLAN PRI value corresponding to the 5QI value to the docking device.
11. A sub-slice docking device, applied to a Network Slice Management Function (NSMF), the device comprising:
the docking parameter generation module is used for generating current docking parameters according to predefined interface parameters for docking the core network sub-slice and the carrier network sub-slice;
and the docking parameter sending module is connected with the docking parameter generating module and is used for carrying the current docking parameters in a corresponding creation NSSI interface when a core network slice subnet instance NSSI is created and sending the current docking parameters to a core network slice subnet management function CN-NSSMF so that the CN-NSSMF completes the docking of the core network sub-slice and the carrier network sub-slice according to the received current docking parameters.
12. A sub-slice docking device, applied to a Network Slice Management Function (NSMF), the device comprising:
a docking parameter receiving module, configured to receive a current docking parameter sent by an NSMF, where the current docking parameter is generated by the NSMF according to a predefined interface parameter for docking a core network sub-slice and a bearer network sub-slice;
and the sub-slice docking module is connected with the docking parameter receiving module and is used for completing docking of the core network sub-slice and the carrier network sub-slice according to the received current docking parameters.
13. A sub-slice docking apparatus comprising a memory and a processor, wherein the memory has stored therein a computer program, the processor being arranged to run the computer program to implement the sub-slice docking method of any one of claims 1-6 or to implement the sub-slice docking method of any one of claims 7-10.
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