CN106713406B - Method and system for accessing slice network - Google Patents
Method and system for accessing slice network Download PDFInfo
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- CN106713406B CN106713406B CN201510801857.8A CN201510801857A CN106713406B CN 106713406 B CN106713406 B CN 106713406B CN 201510801857 A CN201510801857 A CN 201510801857A CN 106713406 B CN106713406 B CN 106713406B
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
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- H04L67/567—Integrating service provisioning from a plurality of service providers
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Abstract
The invention discloses a method and a system for accessing a slice network, wherein the method comprises the following steps: the resource manager receives a network slice creation request sent by a third-party application, and sends a resource customization request to a virtual resource provider according to performance and/or functional parameters carried in the creation request; and receiving the virtual resources provided by the virtual resource provider, creating a network slice for the third-party application, and distributing identification information for the created network slice.
Description
Technical Field
The present invention relates to a network slice (slice) technology of a mobile network, and more particularly, to a method and system for accessing a slice network.
Background
Traditional network equipment is developed and customized by various equipment manufacturers based on special equipment, and new network functions and service introduction generally mean development and deployment of new network equipment entities. New dedicated network equipment will bring more energy consumption, equipment investment, and increases in technology reserves, equipment integration, and operational management costs required for the new equipment. The continuous innovation of network technology and service enables the life cycle of network equipment based on special hardware to be shortened rapidly, and the profit increase brought by new service promotion is reduced. For a service provider, in order to reduce network deployment and service promotion operation costs, a network in the future needs to implement software and hardware decoupling based on a general hardware platform, so that the life cycle of equipment is prolonged by a software updating and upgrading mode, and the overall cost of the equipment is reduced. In addition, the deployment progress of the new business is accelerated through software and hardware decoupling, powerful guarantee is provided for rapidly popularizing the new business and winning the market, and therefore the profit of a service provider is increased. In the background, Network Function Virtualization (NFV) is proposed, which implements various Network functions through software and runs on a general X86 architecture server, thereby reducing the expensive equipment cost of the Network and implementing software and hardware decoupling and Function abstraction. The functions of the network equipment do not depend on special hardware any more through NFV, resources can be shared fully and flexibly, and automatic deployment, elastic expansion, fault isolation, self-healing and the like are carried out based on actual service requirements. NFV realizes decoupling of bottom layer physical devices, upper layer operating systems, and application software, and a management and coordination system provides a manageable, controllable, and operable service providing environment, so that basic resources can be conveniently provided for applications. The NFV architecture is divided into three layers according to a network, a network element and resources, and each layer has a management and cooperative function module. The functions of managing and coordinating the layers should include: the method comprises the following steps of virtual machine life cycle management, resource monitoring, virtual machine performance monitoring, fault management, virtual machine dynamic migration, load balancing, resource management, information maintenance and the like. The Management and coordination layer mainly includes an Operation Support System (OSS), a Network component Management System (EMS), a Network Function Virtualization Orchestrator (NFVO), a Virtualization Infrastructure Manager (VIM), and a virtualization Network Function module Manager (VNFM).
In NFV of Evolved Packet Core (EPC) and IP Multimedia System (IMS), a Mobility Management Entity (MME), a Serving GateWay (S-GW), a Packet Data GateWay (P-GW), a Call Session Control Function (CSCF), and a base station using different wireless standards, etc. may be virtualized. Wherein the network functional entities of EPC and IMS can be integrated in the same hardware resource pool, achieving a reduction of the overall cost of the network by avoiding automated operations of failure and recovery by exploiting NFVI sharing, and load-based resource allocation. In addition, the functions of the base station, such as the physical layer/data link layer/network layer protocol stack, handling different wireless standards (e.g., 2G, 3G, LTE, WiMAX, etc.), can also be shared hardware resources in a centralized environment, enabling dynamic resource allocation and reducing power consumption.
Currently, the discussion of NFV in the industry focuses on the network management operator direction, but does not start a discussion of a detailed end-to-end scheme. How to provide service support for third-party applications is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
In order to solve the above technical problem, embodiments of the present invention provide a method and a system for accessing a slice network.
The method for accessing the slice network provided by the embodiment of the invention comprises the following steps:
the resource manager receives a network slice creation request forwarded by the capacity openness device or sent by a third-party application, and sends a resource customization request to a virtual resource provider according to performance and/or functional parameters carried in the creation request;
and receiving the virtual resources provided by the virtual resource provider, creating a network slice for the third-party application, and distributing identification information for the created network slice.
In the embodiment of the present invention, the method further includes:
the network system sets a service template according to the virtual resources provided by the virtual resource provider, wherein the service template comprises performance and/or functional parameters;
and the third party application selects a service template and sends the selected service template to the resource manager through the creation request.
In this embodiment of the present invention, the creating a network slice for the third-party application includes:
the resource manager inquires the authorization information of the third-party application, establishes a network slice when determining that the establishment request is in an authorization range, and writes a network identifier distributed for the network slice into a Home Subscriber Server (HSS);
creating a virtual mobility management unit (MME) and a virtual gateway for the network slice;
receiving subscription information of the third-party application and storing the subscription information to the HSS; the subscription information at least comprises a mapping relation between a user identifier and the network slice identifier, and an MME to which the network slice belongs.
In the embodiment of the present invention, the method further includes:
a network slice selection device receives an access request carrying a network slice identifier sent by user equipment, and determines an MME corresponding to a network slice to be accessed by the user equipment according to the network slice identifier;
and initiating an authentication request to the HSS by the determined MME, addressing a server of a third party application by the HSS through a network slice identifier, and executing an authentication process.
In the embodiment of the invention, authentication and authorization data are stored in an HSS, and data flow Policy control data are stored in a Policy and Charging Rules Function (PCRF); the method further comprises the following steps:
a network slice selection device receives an access request carrying a network slice identifier sent by user equipment, and determines an MME corresponding to a network slice to be accessed by the user equipment according to the network slice identifier;
and initiating an authentication request to the HSS by the determined MME, authenticating the user equipment by the HSS, and performing data flow policy control on the service requested by the user equipment after the authentication is passed.
In the embodiment of the invention, authentication and authorization data are stored in HSS, and data flow strategy control data are stored in PCRF; the method further comprises the following steps:
MME receives an access request sent by user equipment and initiates an authentication request to HSS for the user equipment; receiving an authentication response returned by the HSS, and determining the home MME of the user equipment according to an authorized network slice identifier of the user equipment carried in the authentication response; the access request of the user equipment is redirected to a user equipment home MME, and the user equipment home MME initiates the access request of the related service of the user equipment.
In the embodiment of the invention, authentication and authorization data are stored in HSS, and data flow strategy control data are stored in PCRF; the method further comprises the following steps:
MME receives an access request sent by user equipment and initiates an authentication request to HSS for the user equipment; receiving an authentication response returned by the HSS, and redirecting an access request of the user equipment to a user equipment attribution MME according to an authorization network slice identifier of the user equipment and the user equipment attribution MME carried in the authentication response; and initiating an access request of related services of the user equipment by a home MME of the user equipment.
In the embodiment of the present invention, the resource manager includes, but is not limited to, Network function virtualization Management and organization (MANO);
the functional parameters include at least one of the following parameters:
network type, network element function module type,
The performance parameters include at least one of the following parameters:
the user is allowed to access the number parameters, processing speed, storage space and service quality.
In this embodiment of the present invention, the creating a network slice for the third-party application includes:
the resource manager informs a virtualized network function module manager VNFM to establish a network function based on the function parameters;
the resource manager notifies the Virtualized Infrastructure Manager (VIM) to allocate network performance resources based on the performance parameters; or
The resource manager informs the VNFM of the functional parameters and the performance parameters, and the VNFM creates a virtual network, a network element and customizes a corresponding functional module according to the functional parameters; and notifying the VIM to allocate network performance resources according to the performance parameters.
A system for accessing a slice network, comprising: resource manager, ability opening device and virtual resource provider, wherein:
the virtual resource provider is used for providing virtual resources;
the resource manager is used for receiving a network slice creation request forwarded by the capacity openness device or sent by a third-party application, and sending a resource customization request to the virtual resource provider according to performance and/or functional parameters carried in the creation request; and
and receiving the virtual resources provided by the virtual resource provider, creating a network slice for the third-party application, and distributing identification information for the created network slice.
In the embodiment of the present invention, the system further includes: the setting unit is used for setting a service template according to the virtual resources provided by the virtual resource provider, wherein the service template comprises performance and/or functional parameters;
and the third-party application is used for selecting a service template and sending the selected service template to the resource manager through the creation request.
In the embodiment of the invention, the system also comprises a Home Subscriber Server (HSS);
the resource manager is further configured to query authorization information of the third-party application, create a network slice when determining that the creation request is within an authorization range, and write a network identifier allocated to the network slice into a home subscriber server HSS; creating a virtual mobility management unit (MME) and a virtual gateway for the network slice; and
the resource manager is further configured to receive subscription information of the third-party application and store the subscription information to the HSS; the subscription information at least comprises a mapping relation between a user identifier and the network slice identifier, and an MME to which the network slice belongs.
In the embodiment of the invention, the system also comprises a third-party application server for providing services for the third-party application and a network slice selection device;
the network slice selection device is further configured to receive an access request carrying a network slice identifier sent by user equipment, and determine, according to the network slice identifier, an MME corresponding to a network slice to be accessed by the user equipment;
and initiating an authentication request to the HSS by the determined MME, addressing a server of a third party application by the HSS through a network slice identifier, and executing an authentication process.
In the embodiment of the invention, the system also comprises a policy and charging rule function PCRF and a network slice selection device;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
the network slice selection device is further configured to receive an access request carrying a network slice identifier sent by user equipment, and determine, according to the network slice identifier, an MME corresponding to a network slice to be accessed by the user equipment;
and initiating an authentication request to the HSS by the determined MME, authenticating the user equipment by the HSS, and performing data flow policy control on the service requested by the user equipment after the authentication is passed.
In the embodiment of the invention, the system also comprises an MME and a PCRF;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
MME, which is used for receiving the access request sent by user equipment and initiating an authentication request to the user equipment to HSS; receiving an authentication response returned by the HSS, and determining the home MME of the user equipment according to an authorized network slice identifier of the user equipment carried in the authentication response; the access request of the user equipment is redirected to a user equipment home MME, and the user equipment home MME initiates the access request of the related service of the user equipment.
In the embodiment of the invention, the system also comprises an MME and a PCRF;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
MME, which is used for receiving the access request sent by user equipment and initiating an authentication request to the user equipment to HSS; receiving an authentication response returned by the HSS, and redirecting an access request of the user equipment to an MME to which the user equipment belongs according to an authorized network slice identifier of the user equipment and the MME to which the user equipment belongs, wherein the authorized network slice identifier is carried in the authentication response; and initiating an access request of related services of the user equipment by a home MME of the user equipment.
In the embodiment of the present invention, the resource manager includes, but is not limited to, network function virtualization management and orchestration MANO;
the functional parameters include at least one of the following parameters:
network type, network element function module type,
The performance parameters include at least one of the following parameters:
the user is allowed to access the number parameters, processing speed, storage space and service quality.
In the embodiment of the present invention, the system further includes: VNFM and VIM;
the resource manager is further configured to notify the VNFM to create a network function based on the function parameter; and based on the performance parameters, notifying the virtualized infrastructure manager, VIM, to allocate network performance resources;
or
The resource manager is further configured to notify the VNFM of the functional parameters and the performance parameters, and the VNFM creates a virtual network, a network element, and customizes a corresponding functional module according to the functional parameters; and notifying the VIM to allocate network performance resources according to the performance parameters.
In the technical scheme of the embodiment of the invention, a third party application analyzes the performance and/Or function parameters provided by the third party application through accessing a resource manager interface and the performance and/Or function parameters provided by the third party application by a resource manager, and customizes the virtual network function and performance through an Or-Vnfm interface; specifically, the VNF-M customizes the mobile network element and component functions through a Ve-Vnfm interface, and customizes the mobile network performance through a Vi-Vnfm interface. Thus, the User Equipment (UE) can access the service function of the VNF by accessing the service capability open interface, thereby implementing the mobile network management capability and opening the mobile service authentication capability. The third-party application provides the function and performance parameters required by the service to the resource manager interface, so that the related resources for realizing the required service are provided for the third-party application, and the related service support is provided for the third-party application by providing network elements such as MME (mobility management entity), gateway and the like, so that the personalized service is provided for the third-party application. The technical scheme of the embodiment of the invention can meet various service requirements of a third party, improves the service capability of an operator and saves the network deployment cost.
Drawings
Fig. 1 is a flowchart illustrating a method for accessing a slice network according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for accessing a slice network according to a second embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for accessing a slice network according to a third embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for accessing a slice network according to a fourth embodiment of the present invention;
fig. 5 is a flowchart illustrating a fifth method for accessing a slice network according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a method for accessing a slice network according to a sixth embodiment of the present invention.
Detailed Description
So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.
Fig. 1 is a flowchart illustrating a method for accessing a slice network according to a first embodiment of the present invention, where as shown in fig. 1, the method for accessing a slice network includes the following steps:
step 101: and the resource manager receives a network slice creation request forwarded by the capacity openness device or sent by a third-party application, and sends a resource customization request to the virtual resource provider according to the performance and/or function parameters carried in the creation request.
The technical scheme of the embodiment of the invention mainly realizes the service provision of the mobile network based on the NFV technology, so that the network element function is realized through the virtualization technology, and the performance requirement of the service is ensured. The core idea of the NFV technology is to decouple the logical network function from the physical hardware device, so as to greatly reduce the network construction cost and operation cost of the basic telecommunication network operator, and the specific implementation manner is: (1) in the aspect of network hardware equipment, the previous entity network elements are standardized into three types of IT equipment, namely a high-capacity server, a high-capacity storage and a data switch; (2) and in the aspect of network function implementation, a programmable software platform is used for realizing virtualized network functions.
In the embodiment of the invention, a network system sets service templates of various services in advance according to virtual resources which can be provided by a virtual resource provider, wherein the service templates comprise performance and/or functional parameters;
and the third party application selects a service template and sends the selected service template to the resource manager through the creation request.
In embodiments of the present invention, resource managers include, but are not limited to, network function virtualization management and orchestration MANOs;
the functional parameters include at least one of the following parameters:
network type, network element function module type,
The performance parameters include at least one of the following parameters:
the user is allowed to access the number parameters, processing speed, storage space and service quality.
Step 102: and receiving the virtual resources provided by the virtual resource provider, creating a network slice for the third-party application, and distributing identification information for the created network slice.
In the embodiment of the present invention, creating a network slice for the third-party application specifically includes:
the resource manager inquires the authorization information of the third-party application, establishes a network slice when determining that the establishment request is in an authorization range, and writes a network identifier distributed for the network slice into an HSS;
creating a virtual MME and a virtual gateway for the network slice;
receiving subscription information of the third-party application and storing the subscription information to the HSS; the subscription information at least comprises a mapping relation between a user identifier and the network slice identifier, and an MME to which the network slice belongs.
Specifically, the creating a web slice for the third-party application includes:
the resource manager informs a virtualized network function module manager VNFM to establish a network function based on the function parameters;
the resource manager notifies the Virtualized Infrastructure Manager (VIM) to allocate network performance resources based on the performance parameters; or
The resource manager informs the VNFM of the functional parameters and the performance parameters, and the VNFM creates a virtual network, a network element and customizes a corresponding functional module according to the functional parameters; and notifying the VIM to allocate network performance resources according to the performance parameters.
Based on the NFV network established in steps 101 and 102, the technical solution of the embodiment of the present invention further includes:
a network slice selection device receives an access request carrying a network slice identifier sent by user equipment, and determines an MME corresponding to a network slice to be accessed by the user equipment according to the network slice identifier;
and initiating an authentication request to the HSS by the determined MME, addressing a server of a third party application by the HSS through a network slice identifier, and executing an authentication process.
Based on the NFV network established in steps 101 and 102, in the embodiment of the present invention, authentication authorization data is stored in the HSS, and data flow policy control data is stored in the PCRF; the technical scheme of the embodiment of the invention also comprises the following steps:
a network slice selection device receives an access request carrying a network slice identifier sent by user equipment, and determines an MME corresponding to a network slice to be accessed by the user equipment according to the network slice identifier;
and initiating an authentication request to the HSS by the determined MME, authenticating the user equipment by the HSS, and performing data flow policy control on the service requested by the user equipment after the authentication is passed.
Based on the NFV network established in steps 101 and 102, in the embodiment of the present invention, authentication authorization data is stored in the HSS, and data flow policy control data is stored in the PCRF; the technical scheme of the embodiment of the invention also comprises the following steps:
MME receives an access request sent by user equipment and initiates an authentication request to HSS for the user equipment; receiving an authentication response returned by the HSS, and determining the home MME of the user equipment according to an authorized network slice identifier of the user equipment carried in the authentication response; the access request of the user equipment is redirected to a user equipment home MME, and the user equipment home MME initiates the access request of the related service of the user equipment.
Based on the NFV network established in steps 101 and 102, in the embodiment of the present invention, authentication authorization data is stored in the HSS, and data flow policy control data is stored in the PCRF; the technical scheme of the embodiment of the invention also comprises the following steps:
MME receives an access request sent by user equipment and initiates an authentication request to HSS for the user equipment; receiving an authentication response returned by the HSS, and redirecting an access request of the user equipment to a user equipment attribution MME according to an authorization network slice identifier of the user equipment and the user equipment attribution MME carried in the authentication response; and initiating an access request of related services of the user equipment by a home MME of the user equipment.
In the embodiment of the invention, User Equipment (UE) can access the service function of the VNF through accessing the service capability open interface, thereby realizing the function of the mobile network management channel and opening the authentication capability of the mobile service. The third-party application provides the function and performance parameters required by the service to the resource manager interface, so that the related resources for realizing the required service are provided for the third-party application, and the related service support is provided for the third-party application by providing network elements such as MME (mobility management entity), gateway and the like, so that the personalized service is provided for the third-party application. The technical scheme of the embodiment of the invention can meet various service requirements of a third party, improves the service capability of an operator and saves the network deployment cost.
The essence of the technical solution of the embodiments of the present invention is further clarified by specific examples below.
Fig. 2 is a flowchart illustrating a method for accessing a slice network according to a second embodiment of the present invention, and as shown in fig. 2, the method for accessing a slice network of the present example includes the following steps:
and 20, signing a contract by a third party application, authorizing the virtual network type to be used, a virtual network parameter template, a function template, a performance template and the like. The function template comprises a network element type range and a component type range, such as a customized Mobility Management function (MM), a Session Management function (SM), Quality of Service (QoS), and the like; the performance template comprises parameters such as max forwarding bandwidth, forwarding delay index, user capacity and the like.
In the embodiment of the invention, an operator sets the virtual network type, the virtual network parameter template, the function template, the performance template and the like in advance according to the resources which can be provided by the operator, so that various services are provided for third-party application. And determining the authority of the third-party application for using the resources by signing with the third-party application.
Step 21, the third party application sends a request for creating a network slice to the capability openness device, wherein the request carries a network parameter template identifier, and can also comprise a function template and a performance template;
in this embodiment of the present invention, the capability openness apparatus may be an NFV orchestrator or an interface thereof, and is responsible for receiving a network slice creation request and a service access request of a third party application.
Specifically, the third-party application analyzes the performance and/Or function parameters provided by the third-party application through accessing the interface of the orchestrator and through the performance and/Or function parameters provided by the third-party application, and customizes the virtual network function and performance through the Or-Vnfm interface; specifically, the VNF-M customizes the mobile network element and component functions through a Ve-Vnfm interface, and customizes the mobile network performance through a Vi-Vnfm interface. Therefore, the third-party application can access the service function of the VNF through the access service capability open interface, realize the mobile network management channel capability and open the mobile service authentication capability. The third-party application provides the function and performance parameter required by the service for the orchestrator interface, thereby providing the related resource for realizing the required service for the third-party application, and provides the related service support by providing network elements such as MME, gateway and the like for the third-party application, thereby providing the personalized service for the third-party application.
Step 22, after receiving the creation request sent by the third party application, the capability development device drives the mano (network functions visualization Management and organization) to create a virtual network, which carries the function parameters and/or the performance parameters.
Step 23, the MANO inquires the third party authorization information to the OSS and judges whether the creation is in the authorization range. If not, the current processing flow is ended.
If the authorization scope is met, a creation process is performed.
The creation process may be, but is not limited to, two implementations:
the first method is as follows: the NFVO informs a VNF Manager to create a network function based on the function parameters; here, the functional parameters may include: virtual network type identification parameters, network element type parameters, network element function module parameters and the like;
NFVO informs the VIM to allocate network performance resources based on performance parameters, where the performance parameters may include quality of service, number of containable users or computations, storage resources, etc.
The second method comprises the following steps: the NFVO informs the VNF Manager of the functional and performance parameters. And the VNF Manager creates a virtual network and a network element and customizes a corresponding functional module according to the functional parameters. And the VNF Manager informs the VIM of allocating network performance resources according to the performance parameters.
Step 24, the MANO creates a network slice, addresses the HSS, and writes the identifier allocated for the virtual network into the HSS, which may include the mapping relationship between the network slice identifier and the server of the third party application. The HSS can be an HSS created by a virtual network or a mobile network entity HSS;
step 25, the MANO creates an MME virtual network element;
step 26, the MANO creates an SGW/PGW virtual network element;
step 27, the third party application writes the user subscription information of the network slice created for the third party into the HSS by the capability openness device through the data transmission interface; the user subscription information comprises mapping of a user identifier and a virtual network identifier, and MME information to which the third-party application belongs;
step 28, the capability openness device writes the mapping relationship between the virtual network identifier and the MME into the virtual network selector.
Through the creation of the network slice, the third-party application can develop related services.
Fig. 3 is a flowchart illustrating a method for accessing a slice network according to a third embodiment of the present invention, and as shown in fig. 3, the method for accessing a slice network of the present example includes the following steps:
step 30, storing third party application signing authentication data in HSS, wherein the signing authentication data comprises a network slice identifier;
step 31, the UE initiates a Non-Access Stratum (NAS) Access request message to the network slice selection device, where the Access request message carries a network slice identifier;
the embodiment of the invention is based on the specific application of the network slice created in the embodiment shown in fig. 2. Namely, after a network slice is created for a third-party application, how the UE accesses the network slice and performs related services. The network slice selection device may be a service access port provided by the NFV for the UE.
Step 32, according to the network slice identifier, the network slice selection device or the MME judges the MME to which the virtual network belongs;
step 33, the network slice selection device redirects the access request of the UE to the MME to which the network slice accessed by the UE belongs;
step 34, the MME sends an authentication request of the UE to the HSS, and the authentication request carries a network slice identifier;
step 35, the HSS addresses the server of the third party application through the network slice identifier;
step 36, the HSS initiates an authentication flow of the UE;
step 37, the authentication process of the UE is completed, and the server of the third party application is notified of the policy controller identifier allocated to the UE;
step 38, the MME and a server of the third-party application establish a data plane channel of the user;
step 39, the server of the third party application triggers the PCRF to issue the user data flow control policy;
at step 310, the PCRF enforces control policies.
In the embodiment of the invention, the UE sends the service request to the capability opening device, and the capability opening device triggers the related service.
Fig. 4 is a flowchart illustrating a method for accessing a slice network according to a fourth embodiment of the present invention, and as shown in fig. 4, the method for accessing a slice network of the present example includes the following steps:
step 40, the server of the third party application injects user authentication authorization data to HSS; the server of the third party application injects user data flow strategy control data to the PCRF;
step 41, the UE sends an NAS access request message to the network slice selection apparatus, where the access request message carries a network slice identifier;
step 42, the network slice selection device judges the MME to which the network slice to which the UE belongs according to the network slice identifier;
step 43, the network slice selection device redirects the access request of the user to the attributive MME;
step 44, MME sends an authentication request of the user to HSS, and the authentication request carries a network slice identifier;
step 45, the HSS searches the signing data of the user according to the network slice identification and executes the user authentication process; after the authentication is passed, the following steps are performed.
Step 46, MME sends channel establishment request to S-GW and P-GW, and establishes user data plane channel;
and step 47, the S-GW and the P-GW issue a user data flow control policy to the PCRF, and the PCRF executes the control policy.
Fig. 5 is a flowchart illustrating a fifth method for accessing a slice network according to an embodiment of the present invention, and as shown in fig. 5, the method for accessing a slice network of the present example includes the following steps:
step 50, the server of the third party application injects user authentication authorization data to HSS; the server of the third party application injects user data flow strategy control data to the PCRF;
step 51, the MME receives an NAS access request message sent by the UE;
step 52, MME sends authentication request of user to HSS;
step 53, executing a user authentication process;
step 54, the MME receives an authentication success response sent by the HSS, wherein the authentication success response carries the home network of the authorized UE and carries the network slice identifier of the home network of the UE;
step 55, judging the MME to which the network slice belongs according to the network slice identifier;
step 56, the MME redirects an access request of a user to the attributive MME, wherein the redirection request carries subscription data of the user;
step 57, the MME to which the UE belongs initiates a channel establishment request to the S-GW and the P-GW, and establishes a data plane channel of the user;
step 58, the S-GW and the P-GW issue the user data flow control policy to the PCRF, and the PCRF executes the control policy.
Fig. 6 is a flowchart illustrating a method for accessing a slice network according to a sixth embodiment of the present invention, and as shown in fig. 6, the method for accessing a slice network of the present example includes the following steps:
step 60, the server of the third party application injects user authentication authorization data to the HSS; the server of the third party application injects user data flow strategy control data to the PCRF;
step 61, MME receives NAS cut-in request message sent by UE;
step 62, the MME sends an authentication request of the user to the HSS;
step 63, executing a user authentication process;
step 64, the MME receives an authentication and authentication success response sent by the HSS, wherein the authentication and authentication success response carries the home network of the authorized UE, the virtual network identifier of the home user and the MME identifier/address;
step 65, the MME redirects an access request of a user to the attributive MME, wherein the redirection request carries subscription data of the user;
step 66, MME that UE belongs to initiates a channel establishment request to S-GW and P-GW, and establishes a user data plane channel;
and step 67, the S-GW and the P-GW issue a user data flow control strategy to the PCRF, and the PCRF executes the control strategy.
The embodiment of the invention also describes a system for accessing the slice network, which comprises: resource manager, ability opening device and virtual resource provider, wherein:
the virtual resource provider is used for providing virtual resources;
the resource manager is used for receiving a network slice creation request forwarded by the capacity openness device or sent by a third-party application, and sending a resource customization request to the virtual resource provider according to performance and/or functional parameters carried in the creation request; and
and receiving the virtual resources provided by the virtual resource provider, creating a network slice for the third-party application, and distributing identification information for the created network slice.
In the embodiment of the present invention, the system further includes:
the setting unit is used for setting a service template according to the virtual resources provided by the virtual resource provider, wherein the service template comprises performance and/or functional parameters;
and the third-party application is used for selecting a service template and sending the selected service template to the resource manager through the creation request.
In the embodiment of the invention, the system also comprises an HSS;
the resource manager is further configured to query authorization information of the third-party application, create a network slice when determining that the creation request is within an authorization range, and write a network identifier allocated to the network slice into a home subscriber server HSS; creating a virtual mobility management unit (MME) and a virtual gateway for the network slice; and
the resource manager is further configured to receive subscription information of the third-party application and store the subscription information to the HSS; the subscription information at least comprises a mapping relation between a user identifier and the network slice identifier, and an MME to which the network slice belongs.
In the embodiment of the invention, the system also comprises a third-party application server for providing services for the third-party application and a network slice selection device;
the network slice selection device is further configured to receive an access request carrying a network slice identifier sent by user equipment, and determine, according to the network slice identifier, an MME corresponding to a network slice to be accessed by the user equipment;
and initiating an authentication request to the HSS by the determined MME, addressing a server of a third party application by the HSS through a network slice identifier, and executing an authentication process.
In the embodiment of the invention, the system also comprises a policy and charging rule function PCRF and a network slice selection device;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
the network slice selection device is further configured to receive an access request carrying a network slice identifier sent by user equipment, and determine, according to the network slice identifier, an MME corresponding to a network slice to be accessed by the user equipment;
and initiating an authentication request to the HSS by the determined MME, authenticating the user equipment by the HSS, and performing data flow policy control on the service requested by the user equipment after the authentication is passed.
In the embodiment of the invention, the system also comprises an MME and a PCRF;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
MME, which is used for receiving the access request sent by user equipment and initiating an authentication request to the user equipment to HSS; receiving an authentication response returned by the HSS, and determining the home MME of the user equipment according to an authorized network slice identifier of the user equipment carried in the authentication response; the access request of the user equipment is redirected to a user equipment home MME, and the user equipment home MME initiates the access request of the related service of the user equipment.
In the embodiment of the invention, the system also comprises an MME and a PCRF;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
MME, which is used for receiving the access request sent by user equipment and initiating an authentication request to the user equipment to HSS; receiving an authentication response returned by the HSS, and redirecting an access request of the user equipment to an MME to which the user equipment belongs according to an authorized network slice identifier of the user equipment and the MME to which the user equipment belongs, wherein the authorized network slice identifier is carried in the authentication response; and initiating an access request of related services of the user equipment by a home MME of the user equipment.
In the embodiment of the present invention, the resource manager includes, but is not limited to, network function virtualization management and orchestration MANO;
the functional parameters include at least one of the following parameters:
network type, network element function module type,
The performance parameters include at least one of the following parameters:
the user is allowed to access the number parameters, processing speed, storage space and service quality.
In the embodiment of the present invention, the system further includes: VNFM and VIM;
the resource manager is further configured to notify the VNFM to create a network function based on the function parameter; and based on the performance parameters, notifying the virtualized infrastructure manager, VIM, to allocate network performance resources;
or
The resource manager is further configured to notify the VNFM of the functional parameters and the performance parameters, and the VNFM creates a virtual network, a network element, and customizes a corresponding functional module according to the functional parameters; and notifying the VIM to allocate network performance resources according to the performance parameters.
It should be understood by those skilled in the art that the system for accessing a slice network according to the embodiment of the present invention is implemented on the basis of an existing NFV network architecture, which is completely the same as the existing NFV network architecture, except that the embodiment of the present invention redefines functions and applications of related network elements in the above network structure, and the implemented functions of the above network elements may be understood by referring to the related description of the method for accessing a slice network.
The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
In the embodiments provided in the present invention, it should be understood that the disclosed method and intelligent device may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one second processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (16)
1. A method of accessing a slice network, the method comprising:
the resource manager receives a network slice creation request forwarded by the capacity openness device or sent by a third-party application, and sends a resource customization request to a virtual resource provider according to performance and/or functional parameters carried in the creation request;
receiving the virtual resources provided by the virtual resource provider, creating a network slice for the third-party application, and distributing identification information for the created network slice;
the creating a web slice for the third party application includes:
the resource manager inquires the authorization information of the third-party application, creates a network slice when determining that the creation request is in an authorization range, and writes a network identifier distributed for the network slice into a Home Subscriber Server (HSS);
creating a virtual mobility management unit (MME) and a virtual gateway for the network slice;
receiving subscription information of the third-party application and storing the subscription information to the HSS; the subscription information at least comprises a mapping relation between a user identifier and the network slice identifier, and an MME to which the network slice belongs.
2. The method of accessing a slice network of claim 1, wherein the method further comprises:
the network system sets a service template according to the virtual resources provided by the virtual resource provider, wherein the service template comprises performance and/or functional parameters;
and the third party application selects a service template and sends the selected service template to the resource manager through the creation request.
3. The method of accessing a slice network of claim 1, wherein the method further comprises:
a network slice selection device receives an access request carrying a network slice identifier sent by user equipment, and determines an MME corresponding to a network slice to be accessed by the user equipment according to the network slice identifier;
and initiating an authentication request to the HSS by the determined MME, addressing a server of a third party application by the HSS through a network slice identifier, and executing an authentication process.
4. The method of accessing a slice network of claim 1 wherein authentication authorization data is stored in the HSS and data flow policy control data is stored in a policy and charging rules function PCRF; the method further comprises the following steps:
a network slice selection device receives an access request carrying a network slice identifier sent by user equipment, and determines an MME corresponding to a network slice to be accessed by the user equipment according to the network slice identifier;
and initiating an authentication request to the HSS by the determined MME, authenticating the user equipment by the HSS, and performing data flow policy control on the service requested by the user equipment after the authentication is passed.
5. The method of accessing a slice network of claim 1 wherein authentication authorization data is stored in the HSS and data flow policy control data is stored in the PCRF; the method further comprises the following steps:
MME receives an access request sent by user equipment and initiates an authentication request to HSS for the user equipment; receiving an authentication response returned by the HSS, and determining the home MME of the user equipment according to an authorized network slice identifier of the user equipment carried in the authentication response; the access request of the user equipment is redirected to a user equipment home MME, and the user equipment home MME initiates the access request of the related service of the user equipment.
6. The method of accessing a slice network of claim 1 wherein authentication authorization data is stored in the HSS and data flow policy control data is stored in the PCRF; the method further comprises the following steps:
MME receives an access request sent by user equipment and initiates an authentication request to HSS for the user equipment; receiving an authentication response returned by the HSS, and redirecting an access request of the user equipment to a user equipment attribution MME according to an authorization network slice identifier of the user equipment and the user equipment attribution MME carried in the authentication response; and initiating an access request of related services of the user equipment by a home MME of the user equipment.
7. The method of accessing a slice network of any one of claims 1 to 6 wherein the resource managers include, but are not limited to, network function virtualization management and orchestration MANOs;
the functional parameters include at least one of the following parameters:
network type, network element function module type;
the performance parameters include at least one of the following parameters:
the user is allowed to access the number parameters, processing speed, storage space and service quality.
8. The method of accessing a slice network of claim 7, wherein the creating a network slice for the third party application comprises:
the resource manager informs a virtualized network function module manager VNFM to establish a network function based on the function parameters;
the resource manager notifies the Virtualized Infrastructure Manager (VIM) to allocate network performance resources based on the performance parameters; or
The resource manager informs the VNFM of the functional parameters and the performance parameters, and the VNFM creates a virtual network, a network element and customizes a corresponding functional module according to the functional parameters; and notifying the VIM to allocate network performance resources according to the performance parameters.
9. A system for accessing a slice network, the system comprising: resource manager, ability opening device and virtual resource provider, wherein:
the virtual resource provider is used for providing virtual resources;
the resource manager is used for receiving a network slice creation request forwarded by the capacity openness device or sent by a third-party application, and sending a resource customization request to the virtual resource provider according to performance and/or functional parameters carried in the creation request; and
receiving the virtual resources provided by the virtual resource provider, creating a network slice for the third-party application, and distributing identification information for the created network slice;
the system also comprises a Home Subscriber Server (HSS);
the resource manager is further configured to query authorization information of the third-party application, create a network slice when determining that the creation request is within an authorization range, and write a network identifier allocated to the network slice into a home subscriber server HSS; creating a virtual mobility management unit (MME) and a virtual gateway for the network slice; and
the resource manager is further configured to receive subscription information of the third-party application and store the subscription information to the HSS; the subscription information at least comprises a mapping relation between a user identifier and the network slice identifier, and an MME to which the network slice belongs.
10. The system for accessing a slice network of claim 9, wherein the system further comprises:
the setting unit is used for setting a service template according to the virtual resources provided by the virtual resource provider, wherein the service template comprises performance and/or functional parameters;
and the third-party application is used for selecting a service template and sending the selected service template to the resource manager through the creation request.
11. The system for accessing a slice network of claim 9, wherein the system further comprises a server of a third party application that provides services for the third party application and a network slice selection device;
the network slice selection device is further configured to receive an access request carrying a network slice identifier sent by user equipment, and determine, according to the network slice identifier, an MME corresponding to a network slice to be accessed by the user equipment;
and initiating an authentication request to the HSS by the determined MME, addressing a server of a third party application by the HSS through a network slice identifier, and executing an authentication process.
12. The system of accessing a slice network of claim 9, wherein the system further comprises a policy and charging rules function, PCRF, and a network slice selection device;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
the network slice selection device is further configured to receive an access request carrying a network slice identifier sent by user equipment, and determine, according to the network slice identifier, an MME corresponding to a network slice to be accessed by the user equipment;
and initiating an authentication request to the HSS by the determined MME, authenticating the user equipment by the HSS, and performing data flow policy control on the service requested by the user equipment after the authentication is passed.
13. The system of accessing a slice network of claim 9, wherein the system further comprises an MME and a PCRF;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
MME, which is used for receiving the access request sent by user equipment and initiating an authentication request to the user equipment to HSS; receiving an authentication response returned by the HSS, and determining the home MME of the user equipment according to an authorized network slice identifier of the user equipment carried in the authentication response; the access request of the user equipment is redirected to a user equipment home MME, and the user equipment home MME initiates the access request of the related service of the user equipment.
14. The system of accessing a slice network of claim 9, wherein the system further comprises an MME and a PCRF;
HSS for storing authentication authorization data;
the PCRF is used for storing data flow strategy control data;
MME, which is used for receiving the access request sent by user equipment and initiating an authentication request to the user equipment to HSS; receiving an authentication response returned by the HSS, and redirecting an access request of the user equipment to an MME to which the user equipment belongs according to an authorized network slice identifier of the user equipment and the MME to which the user equipment belongs, wherein the authorized network slice identifier is carried in the authentication response; and initiating an access request of related services of the user equipment by a home MME of the user equipment.
15. The system for accessing a slice network of any one of claims 9 to 14, wherein the resource managers include, but are not limited to, network function virtualization management and orchestration MANOs;
the functional parameters include at least one of the following parameters:
network type, network element function module type;
the performance parameters include at least one of the following parameters:
the user is allowed to access the number parameters, processing speed, storage space and service quality.
16. The system for accessing a slice network of claim 15, wherein the system further comprises: a virtualized network function module manager VNFM and a virtualized infrastructure manager VIM;
the resource manager is further configured to notify the VNFM to create a network function based on the function parameter; and based on the performance parameters, notifying the virtualized infrastructure manager, VIM, to allocate network performance resources;
or
The resource manager is further configured to notify the VNFM of the functional parameters and the performance parameters, and the VNFM creates a virtual network, a network element, and customizes a corresponding functional module according to the functional parameters; and notifying the VIM to allocate network performance resources according to the performance parameters.
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