WO2017012402A1 - 一种网络切片的选择方法及系统 - Google Patents

一种网络切片的选择方法及系统 Download PDF

Info

Publication number
WO2017012402A1
WO2017012402A1 PCT/CN2016/082240 CN2016082240W WO2017012402A1 WO 2017012402 A1 WO2017012402 A1 WO 2017012402A1 CN 2016082240 W CN2016082240 W CN 2016082240W WO 2017012402 A1 WO2017012402 A1 WO 2017012402A1
Authority
WO
WIPO (PCT)
Prior art keywords
network slice
mobile terminal
network
selection function
identifier
Prior art date
Application number
PCT/CN2016/082240
Other languages
English (en)
French (fr)
Inventor
宗在峰
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US15/745,215 priority Critical patent/US20190021047A1/en
Priority to ES16827093T priority patent/ES2760078T3/es
Priority to EP16827093.2A priority patent/EP3327992B1/en
Publication of WO2017012402A1 publication Critical patent/WO2017012402A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities

Definitions

  • This application relates to, but is not limited to, the field of communications.
  • the future mobile network will provide access services for more and more IoT terminals.
  • Internet of Things access brings new challenges and opportunities to mobile networks. Different types of Internet of Things have different needs for the network. Some require the network to provide high real-time and high-reliability services, such as telemedicine, while others require regular small data transmission services, such as remote meter reading systems.
  • mobile networks may need to be properly optimized to meet business needs. More and more Internet of Things puts more and more different optimization requirements on mobile networks. Some of the optimization requirements may be contradictory. Therefore, a converged core network is increasingly unable to meet many different Internet of Things. demand.
  • NFV Network Function Virtualization
  • core network functions can be built on general-purpose hardware without the need for a dedicated hardware platform.
  • the emergence of NFV makes it possible for operators to build different virtual core networks for different network business needs.
  • the virtual core network built for different network business needs is called a network slice.
  • the network functions in the virtual core network can be optimized and customized according to the network business requirements.
  • Network slices based on NFV technology can be rapidly deployed according to requirements to quickly meet the needs of different scenarios.
  • FIG. 1 is a schematic diagram of a network slice.
  • a network slice forms a virtual core network that provides mobile network access services for a specific set of user terminals (UEs).
  • a typical network slice includes a set of virtualized core network functions, such as Mobility Management Entity (MME) functions and policies.
  • MME Mobility Management Entity
  • PCRF Policy and Charging Rules Function
  • HSS Home Subscriber Server
  • GW-C Gateway Controller
  • CG Charging Gateway
  • the network slice is constructed by the operator according to the requirements and the operator policy.
  • the function of a network slice is also determined by the operator according to the requirements and the operator policy.
  • some network slices may include dedicated forwarding in addition to the control plane function.
  • Some network slices may only include some basic control plane functions, such as only the MME and the gateway controller, and other core network related functions are shared with other network slices.
  • NFV Management and Orchestration The operator determines the functions and capacity of the network slice according to the network service requirements of the large customer, and requests MANO to apply for resources, instantiate the function of the network slice, and allocate and configure the connection relationship between the functions, thereby constructing a virtual Core Network.
  • one base station eNB
  • PLMN public land mobile network
  • the terminal accesses the PLMN to be accessed according to the terminal.
  • the selected PLMN, the eNB may uniquely determine the selected one MME Group, and the eNB selects a serving MME for the terminal from the MME Group.
  • the related art network is equivalent to one PLMN with only one network slice.
  • one eNB when there are multiple network slices in the network of the operator, in one PLMN, one eNB will connect the MMEs of multiple network slices, and when one eNB is connected to multiple MMEs of different network slices, only according to the terminal selection. PLMN, the eNB cannot select the network slice to be served and the MME in the network slice.
  • This document provides a method and system for selecting a network slice to solve the problem that network slice selection cannot be performed when an operator deploys multiple network slices in a related art network.
  • a method for selecting a network slice comprising: a network selection function for determining a network accessed by a mobile terminal a network slice identifier of the network slice; the network selection function selects a service node for the mobile terminal according to the network slice identifier.
  • the determining, by the network selection function, the network slice identifier of the network slice accessed by the mobile terminal includes:
  • the network selection function determines the network slice identifier of the network slice accessed by the mobile terminal by receiving the network slice identifier sent by the mobile terminal;
  • the network selection function determines the network slice identifier of the network slice accessed by the mobile terminal according to the identity information of the mobile terminal.
  • the network slice identifier includes: a network slice name or a network slice serial number ID.
  • the determining, by the network selecting function, the network slice identifier of the network slice accessed by the mobile terminal by receiving the network slice identifier sent by the mobile terminal includes:
  • the network selection function receives a network slice identifier carried by a non-access stratum (NAS) message or a radio resource control (RRC) message sent by the mobile terminal; or
  • NAS non-access stratum
  • RRC radio resource control
  • the network selection function receives the NAS message sent by the mobile terminal or the network slice identifier carried by the RRC message by using the wireless access point.
  • the method before the determining, by the network selecting function, the network slice identifier sent by the mobile terminal to determine the network slice identifier of the network slice accessed by the mobile terminal, the method further includes: configuring the allowed network slice information in the mobile terminal.
  • the configuring the allowed network slice information in the mobile terminal includes:
  • the network slice information is allowed to be configured into a Global Subscriber Identification Card (USIM) in the mobile terminal by pre-configuration.
  • USIM Global Subscriber Identification Card
  • the determining, by the network selecting function, the network slice identifier of the network slice accessed by the mobile terminal according to the identity information of the mobile terminal includes:
  • the network selection function queries the pre-configured mobile terminal according to the identity information of the mobile terminal. Determining a mapping relationship between the identity information and the network slice, and determining a network slice identifier of the network slice accessed by the mobile terminal; or
  • the network selection function queries the location information of the subscription data of the mobile terminal according to the identity information of the mobile terminal, acquires the subscription data according to the location information of the subscription data, and determines the network slice identifier of the network slice accessed by the mobile terminal according to the subscription data.
  • the identity information of the mobile terminal includes an International Mobile Subscriber Identity (IMSI) of the mobile terminal.
  • IMSI International Mobile Subscriber Identity
  • the selecting, by the network selection function, the serving node for the mobile terminal according to the network slice identifier includes:
  • the network selection function queries the Domain Name System (DNS) based on the fully qualified domain name (FQDN) of the service node constructed by the network slice identifier to determine the service node; or
  • the network selection function queries the network topology information of the corresponding network slice according to the network slice identifier, and determines the service node.
  • the serving node is an MME in 4G or a logical entity having similar functions of MME in 4G.
  • the network selection function is deployed in a wireless access point or a service node.
  • a method for selecting a network slice includes: determining, by a network selection function, a network slice identifier of a network slice accessed by the mobile terminal; the network selection function selecting a service node for the mobile terminal according to the network slice identifier; the service node determining according to the allowed network slice list Whether the mobile terminal is allowed to access the network slice indicated by the network slice identifier.
  • the network slice list is allowed to be included in the subscription data of the mobile terminal.
  • a network slice selection method includes: a network selection function determining a network slice identifier of a network slice accessed by a mobile terminal; a network selection function selecting a service node for the mobile terminal according to the network slice identifier; and the service node is allocated for the mobile terminal A temporary ID, wherein the mobility management entity MME ID and/or the MME group ID of the temporary ID include a network slice ID.
  • a system for selecting a network slice comprising: a determining module, configured to: determine a network slice identifier of a network slice accessed by the mobile terminal; and the processing module is configured to: select a service node for the mobile terminal according to the network slice identifier.
  • the determining module is set to:
  • the network slice identifier includes: a network slice name or a network slice ID.
  • the system is applied to a wireless access point or a service node.
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • the network selection function determines a network slice identifier of a network slice accessed by the mobile terminal; and the network selection function selects a service node for the mobile terminal according to the network slice identifier.
  • the mobile network can select a suitable network slice and provide a service for the mobile terminal, thereby solving the problem that the network cannot be performed when the operator deploys multiple network slices in the related technology network. The problem of network slice selection.
  • Figure 1 is a schematic diagram of a network slice
  • FIG. 2 is a flowchart of a method for selecting a network slice according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram showing a portion of an MME sequence number (ID) used as a network slice ID;
  • FIG. 4 is a schematic diagram of using an MME Group ID as a network slice ID
  • FIG. 5 is a schematic diagram of combining a MME Group ID and an MME ID to identify a network slice
  • FIG. 6 is a schematic diagram of obtaining service node information in the network slice according to a network slice name
  • FIG. 7 is a schematic diagram of setting a user subscription data
  • FIG. 8 is a schematic diagram of an application architecture according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of a method for selecting a network slice according to Embodiment 1 of the present invention.
  • FIG. 10 is a flowchart of a method for selecting a network slice according to Embodiment 2 of the present invention.
  • FIG. 11 is a schematic diagram of a process for a mobile terminal to initiate a Tracking Area Update (TAU);
  • TAU Tracking Area Update
  • FIG. 12 is a schematic flowchart of a mobile terminal initiating a service request
  • FIG. 13 is a schematic diagram of a network slice selection system according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a method for selecting a network slice according to an embodiment of the present invention. As shown in FIG. 2, the method for selecting a network slice provided by this embodiment includes the following steps:
  • Step 11 The network selection function determines a network slice identifier of the network slice accessed by the mobile terminal.
  • the network slice identifier includes: a network slice name or a network slice serial number (ID).
  • the network slice name is the name of the network slice and is used to uniquely identify the network slice.
  • the network slice name is unique within the carrier's network.
  • the carrier identification (PLMN ID) plus the network slice name uniquely identifies a network slice in the global scope.
  • the network slice name is a string that follows the name format defined by RFC 2181, RFC 1035, and RFC 1123.
  • a medical network is identified by the network slice name mHealth.ns
  • the mobile broadband network is identified by the network slice name xMBB.ns.
  • a network slice can have multiple network slice names at the same time.
  • the network slice ID is a part of a globally unique Temporary UE Identity (GUTI) for uniquely identifying a network slice in an operator network.
  • GUI globally unique Temporary UE Identity
  • the network slice currently accessed by the UE can be queried.
  • the operator may plan a portion of the MME ID and/or MME Group ID as the network slice ID.
  • a portion of the MME ID is used as a network slice ID.
  • the length of the MME ID is defined as 8 bits in the fourth generation mobile communication technology (4G).
  • 4G fourth generation mobile communication technology
  • the operator can divide the MME ID into two segments: one segment identifying the network slice and one segment identifying the MME in the network slice.
  • MME in the group For example, the upper 3 bits of the MME ID are used as the network slice ID, and the lower 5 bits are used as the standard. Knowing the MME, the system can support a total of 8 network slices, and each network slice can accommodate up to 32 MMEs. As shown in FIG. 3, MME Group 1 manages three Tracking Areas (TA, Tracking Area): TA1, TA2, and TA3.
  • TA Tracking Area
  • Network Slice 1 There are two network slices in MME Group1: Network Slice 1 and Network Slice 2, in each network slice.
  • MME Group1 There is a group of MMEs, and the eNBs of the three TAs managed by the MME Group1 have an interface with each MME.
  • the MME in one network slice can be virtualized into one entity in one MME Group, ie there is only one virtual MME inside the network slice.
  • the network slice is identified by the MME ID, which can support up to 256 network slices, which may not meet the increasing network requirements of operators.
  • the MME Group ID is used as the network slice ID, and there is only one network slice in one MME Group.
  • an MME Group represents a network slice.
  • MME Group 1 Network Slice 1
  • MME group 2 Network Slice 2.
  • the advantage of this partitioning method is simplicity, and since the length of the MME Group ID is 16 bits, theoretically more network slices can be supported.
  • the MME Group ID is also used to identify different physical locations, and such partitioning wastes the ID space, so that the space of the MME ID is not fully utilized.
  • the MME Group ID and the MME ID are used in combination to identify the network slice, that is, the segment of the MME Group ID is used together with the MME ID to identify the network slice.
  • the lower 5 bits of the MME Group ID + the upper 5 bits of the MME ID are used to identify the network slice.
  • MME Group 1 and MME Group 2 jointly support 4 network slices, and each network slice can accommodate 128 MMEs.
  • a segment of the MME Group ID needs to be reserved for use as a network slice ID, but the space required for the actual network slice ID can be planned by the operator according to needs.
  • step 11 includes:
  • the network selection function determines the network slice identifier of the network slice accessed by the mobile terminal by receiving the network slice identifier sent by the mobile terminal;
  • the network selection function determines the network slice identifier of the network slice accessed by the mobile terminal according to the identity information of the mobile terminal.
  • the network selection function determines, by receiving the network slice identifier sent by the mobile terminal, the network slice identifier of the network slice accessed by the mobile terminal, including:
  • the network selection function receives a network slice identifier carried by a non-access stratum (NAS, Non-Access Stratum) message or a radio resource control (RRC) message sent by the mobile terminal; or
  • NAS non-access stratum
  • RRC radio resource control
  • the network selection function receives the NAS message sent by the mobile terminal or the network slice identifier carried by the RRC message by using the wireless access point.
  • the method further includes: configuring the allowed network slice information in the mobile terminal.
  • the configuring the allowed network slice information in the mobile terminal includes:
  • the network slice information is allowed to be configured in a pre-configured manner in a Universal Subscriber Identity Module (USIM) in the mobile terminal.
  • USIM Universal Subscriber Identity Module
  • the network slice information is allowed to be configured in the mobile terminal (for example, the network slice list is allowed), and the mobile terminal selects a network slice from the allowed network slice list to access according to the need when accessing.
  • the network slice in the allowed network slice list configured in the mobile terminal may be identified by a network slice ID or a network slice name, and at the same time, each network slice in the allowed network slice list is associated with a network slice descriptor, that is, the network is The slice name or network slice ID is associated with the network slice descriptor.
  • the network slice descriptor is a text or a picture for visually describing a network slice, and the network slice descriptor is used to present different network slices to the user.
  • the network slice descriptor may be presented for the convenience of the user to read. If the network slice list configured in the mobile terminal includes multiple network slices, the mobile terminal allows the user to manually select a network slice access. After the user selects a network slice descriptor, the mobile terminal can automatically convert the network slice descriptor into a network slice name or a network slice ID for use in the access process.
  • the mobile terminal can obtain the network slice name or the network slice ID of the network slice that the user wants to access (for example, by manually selecting or automatically selecting from the allowed network slice list), the mobile terminal The network needs to send the network slice name or network slice ID to the network selection function, so that the network selection function makes reference when selecting the service node for the mobile terminal.
  • the mobile terminal sends the network slice identifier to the network selection function in the following two alternative manners: sending in an RRC message; or sending in a NAS message.
  • the network selection function determines, according to the identity information of the mobile terminal, the network slice identifier of the network slice accessed by the mobile terminal, including:
  • the network selection function determines the network slice identifier of the network slice accessed by the mobile terminal by querying the mapping relationship between the identity information of the pre-configured mobile terminal and the network slice according to the identity information of the mobile terminal; or
  • the network selection function queries the location information of the subscription data of the mobile terminal according to the identity information of the mobile terminal, acquires subscription data according to the location information of the subscription data, and determines a network of the network slice accessed by the mobile terminal according to the subscription data. Slice identification.
  • the mapping relationship between the identity information of the mobile terminal and the network slice is integrated in the default HSS.
  • the identity information of the mobile terminal includes an International Mobile Subscriber Identification Number (IMSI) of the mobile terminal.
  • IMSI International Mobile Subscriber Identification Number
  • the network selection function may determine the mobile terminal according to the identity information of the mobile terminal (such as IMSI).
  • the IMSI number segment is segmented, and each network slice is allocated a segment of the IMSI number.
  • the network selection function can conveniently determine the network slice to which the mobile terminal belongs according to the IMSI number segment.
  • this method is more difficult to implement because there are already thousands of unplanned IMSIs in use in the operator's network.
  • the network selection function obtains the default network slice name or default network slice ID of the mobile terminal from the subscription data of the mobile terminal.
  • network slicing may have the need to privatize user subscription data (for security reasons), and the network selection function may not have access to user subscription data in these network slices.
  • a mapping relationship between the mobile terminal identity information and the network slice eg, an IMSI-network slice mapping table
  • the network selection function queries the mapping table according to the IMSI of the mobile terminal, and can determine the network slice to which the mobile terminal corresponding to the IMSI belongs.
  • the IMSI-network slice mapping table may be integrated in the HSS in the default network slice or stored separately as data.
  • Step 12 The network selection function selects a service node for the mobile terminal according to the network slice identifier.
  • the serving node is an MME in the fourth generation mobile communication technology (4G) or a logical entity having similar functions in the 4G MME.
  • step 12 includes:
  • the network selection function queries the Domain Name System (DNS) according to the Fully Qualified Domain Name (FQDN) of the service node constructed by the network slice identifier to determine the service node; or
  • the network selection function queries the network topology information of the corresponding network slice according to the network slice identifier, and determines the service node.
  • the network slice name can be used to construct the FQDN of the service node in the network slice.
  • constructing the FQDN of the MME in the mobile broadband network with the network slice name xMBB.ns is as follows: mme.tai.xMBB.ns.
  • the FQDN identifies all MMEs serving a tracking area identity (TAI) in the mobile broadband network identified by xMBB.ns.
  • TAI tracking area identity
  • the DNS can serve the TAI. All MMEs in the mobile broadband network are returned to the querier, and the querier can select one MME as the service node of the mobile terminal in the returned MME list.
  • the DNS can also return to the querier a FQDN of a more accurate MME serving the TAI.
  • the DNS returns to the querier: mme_n.xMBB.ns, and the querier uses the new FQDN to query the DNS to obtain the network of the serving MME. Protocol (IP, Internet Protocol) address.
  • IP Internet Protocol
  • the FQDN of the MME in the mobile bandwidth network is constructed using the network slice name xMBB.ns as follows: mme.enbid.xMBB.ns.
  • the FQDN identifies all MMEs serving an eNB in the xMBB.ns mobile broadband network slice.
  • the DNS may return all MMEs in the mobile broadband network serving the eNB to the querier, and the querier may return Select one MME in the MME list to serve the mobile terminal.
  • the DNS may also return to the querier a FQDN of a more accurate MME serving the eNB.
  • the DNS returns to the querier: mme_n.xMBB.ns, and the querier uses the new FQDN to query the DNS to obtain the IP of the serving MME. address.
  • FIG. 6 is a schematic diagram of obtaining service node information in the network slice according to a network slice name.
  • the eNB when receiving an access request from a mobile terminal, the eNB requests a network selection function to allocate an MME for access of the mobile terminal, and the network selection function queries the network topology information of the network slice according to the network slice name, thereby determining Which MME is selected to serve the mobile terminal.
  • the network topology information of each network slice is saved in the system, and the network topology information of the network slice includes the following information: the number of MME Groups in the network slice, the attributes of each MME Group, such as the deployment location of the MME Group, A TA list of services, a list of connected eNBs, etc., each MME in each MME group, its load, and the like.
  • the network slice identified by the network slice named xMBB.ns includes three MME Groups, and MME Group 1 and MME Group 2 are connected to the eNB in FIG. 6.
  • step 201 When the eNB receives an access request from the mobile terminal, the eNB sends a message to the network selection function requesting it to allocate the serving node MME to the mobile terminal. If the UE carries the network slice name of the network slice to be accessed, for example, the network slice name carried by the UE is xMBB.ns, the eNB sends the network slice name carried by the UE to the network selection function.
  • TAI TA1 supported by the eNB in FIG. 6
  • MME Group 1 and MME Group 2 support TA1 in the network topology information in FIG. 6, and therefore, MME Group1 and MME Group 2 may be selected to serve the mobile terminal.
  • the network selection function selects MME Group 1 to serve the mobile terminal, and the network selection function selects a lightly loaded MME from the MME list of the MME Group 1 to serve the mobile terminal, for example, MME2 is selected.
  • the network selection function returns the information of the selected MME2 (such as the IP address of MME2) to the eNB.
  • the eNB can continue the subsequent access procedure.
  • the network selection function is deployed, for example, in a wireless access point or a service node, or deployed independently.
  • the serving node determines whether to allow the network slice list according to the allowable
  • the mobile terminal accesses the network slice indicated by the network slice identifier. Wherein, the network slice list is allowed to be included in the subscription data of the mobile terminal.
  • the network slice list (ANSL) is allowed to include a network slice name and/or a network slice ID of one or more network slices that the mobile terminal is allowed to access.
  • Network slices in ANSL can be sorted by priority or by no prioritization.
  • the service node queries the ANSL in the subscription data when receiving the access request of the mobile terminal, and determines whether the mobile terminal is allowed to access the network slice. If the network slice is included in the ANSL of the mobile terminal, the mobile terminal is allowed to access, and if the network slice is not included, the mobile terminal is denied access.
  • FIG. 7 is a schematic diagram of setting up user subscription data.
  • the user's subscription data may be stored in a network slice or stored in a storage location shared between network slices.
  • the network slice 1 and the network slice 2 in FIG. 7 share the user subscription data storage space, and the user subscription data in the network slice 3 is saved in the network slice.
  • the subscription data of the mobile terminal will not be found in the user subscription database in the network slice. In this way, when the mobile terminal is authenticated, it will fail, and the service node of the network slice can reject the mobile terminal access accordingly.
  • the serving node allocates a temporary ID to the mobile terminal, wherein the MME ID and/or the MME Group ID of the temporary ID includes a network slice ID.
  • the mobile terminal may send the network slice ID in the temporary ID to the network selection function during subsequent access.
  • the network slice ID is not only shorter than the network slice name, but also can be more conveniently used by the wireless access point to select the network slice and the service node, but the disadvantage is that when the operator is planning the network, Once the network slice ID space is re-planned, each mobile terminal needs to be reconfigured to allow network slice information, which makes the system less flexible.
  • the network slice name although the process is slightly more complicated when selecting network slices and service nodes, the operator's network slice plan is more flexible.
  • the present invention also provides a computer readable storage medium storing computer executable instructions for performing the above method of selecting a network slice.
  • FIG. 8 is a schematic diagram of an application architecture according to an embodiment of the present invention.
  • the network selection function is configured to select a corresponding service node in the network slice for the mobile terminal according to the network slice name or the network slice ID and other information (such as the current location of the mobile terminal (such as TAI or eNB ID)).
  • the network selection function can be integrated into the wireless access point or service node, or set independently.
  • a separate network selection function can be combined with other public service functions (such as DNS, user subscription data, etc.) to form a default network slice.
  • the wireless access point sends a message to the network selection function in the default network slice.
  • the network selection function redirects the message sent by the wireless access point to the selected service node after selecting the serving node for the mobile terminal.
  • FIG. 9 is a flowchart of a method for selecting a network slice according to Embodiment 1 of the present invention. Please refer to FIG. 8 and FIG. 9 together.
  • the mobile terminal when the mobile terminal first accesses, the mobile terminal sends the selected network slice identifier (network slice name or network slice ID) to the network selection function in the initial access request message, and the network selection function is based on the mobile terminal.
  • the requested network slice selects a service node in the corresponding network slice for the mobile terminal.
  • the steps in this embodiment are as follows:
  • Step 301 The mobile terminal (UE) sends an access request to the wireless access point.
  • the access request is an Attach Request message
  • the mobile terminal determines the network slice to be accessed when sending the access request, and slices the network.
  • the identifier is sent to the wireless access point, and the mobile terminal may send the selected network slice identifier to the wireless access point in the NAS message or in the RRC message;
  • Step 302 If the wireless access point cannot select the service node according to the network slice identifier, the wireless access point sends the access request message (including the network slice identifier selected by the UE) received by the mobile terminal to the network selection function.
  • Step 303 The network selection function selects a serving node for the UE according to the network slice identifier selected by the UE, where the network selection function may be based on the network slice identifier selected by the UE and the location information of the wireless access point, such as the wireless access point ID or the UE.
  • the TAI and other information of the cell constructs the FQDN of the service node, and obtains the precise ID or IP address of the service node in the selected network slice by querying the DNS.
  • the method of selecting the network slice service node by the network selection function is not limited to the DNS mode, and is optional.
  • the network selection function may select a service node according to the network slice name, the UE location information (such as the wireless access point ID, the current TAI, and the like) and the network topology information. For example, refer to FIG. 6 , and therefore, details are not described herein.
  • Step 304 The network selection function sends a message to the wireless access point, and redirects the access request of the wireless access point to the selected service node.
  • Step 305 The wireless access point sends an access request message to the designated serving node.
  • Step 306 The service node authenticates the mobile terminal. If the subscription database is stored in the network slice, if the mobile terminal is not allowed to access the network slice, the subscription data corresponding to the mobile terminal will not be found in the subscription database, if not The subscription data corresponding to the mobile terminal, the service node fails to authenticate the mobile terminal, denies access by the mobile terminal, and if the subscription data of the mobile terminal is found, and the authentication is successful, the subsequent process is continued;
  • Step 307 The service node sends a location update request to the HSS.
  • Step 308 The HSS sends the subscription data of the mobile terminal to the service node, where the network subscription list is included in the user subscription data.
  • Step 309 The service node checks whether the network slice where the current serving node is located is in the allowed network slice list in the user subscription data, and if the network slice where the service node is located is in the allowed network slice list of the user subscription data, the mobile terminal is allowed to access. If the service node is not in the network slice in the allowed network slice list of the user subscription data, the mobile terminal access is rejected;
  • Step 310 The subsequent process is continued between the mobile terminal and the network, such as establishment of an IP session, establishment of a bearer, etc., wherein the serving node allocates a temporary ID (GUTI) to the mobile terminal in an Attach Accept message, in the temporary
  • GUI temporary ID
  • the network slice ID is included in the MME Group ID and/or MME ID in the ID.
  • FIG. 10 is a flowchart of a method for selecting a network slice according to Embodiment 2 of the present invention. Please refer to FIG. 8 and FIG. 10 together.
  • the network selection function first acquires identity information of the mobile terminal, and selects a network slice and a service node for the mobile terminal according to the identity information.
  • the network selection function obtains the identity information of the mobile terminal in two ways: from the source service node; directly from the mobile terminal.
  • the identity information of the mobile terminal For example, the IMSI of the mobile terminal.
  • the source service node may send the subscription data of the mobile terminal or the default network slice identifier to the network selection function, and the network selection function selects the network for the mobile terminal to select according to the subscription data, if the identity information of the mobile terminal is obtained from the source service node.
  • the network selection function when the network selection function fails to obtain the subscription data or the default network slice from the source service node, the network selection function queries the network slice to which the mobile terminal belongs according to the IMSI of the mobile terminal; or queries the mobile terminal according to the IMSI of the mobile terminal The location where the subscription data is located, and the subscription data is obtained from the HSS where the mobile terminal is located, and the network slice selected for the mobile terminal is selected according to the subscription data.
  • Step 401 The mobile terminal sends an access request to the wireless access point.
  • the access request is an Attach Request message
  • the access request sent by the mobile terminal carries the IMSI of the mobile terminal or the temporary access time.
  • ID (such as 4G GUTI);
  • Step 402 The wireless access point sends an access request message received by the mobile terminal to the network selection function.
  • Step 403 If the temporary ID (for example, GUTI) of the mobile terminal is carried in the access request message, the network selection function searches for the service node (ie, the source service node) that last served the UE according to the GUTI, and sends the service node (ie, the source service node) to the service node.
  • An ID request to obtain an IMSI of the mobile terminal if the context of the mobile terminal is saved in the source serving node, the source serving node sends the IMSI of the UE together with the allowed network slice list or the default network slice identifier in the subscription data to the network selection function;
  • Step 404 If the network selection function fails to obtain the IMSI of the mobile terminal, the network selection function sends an ID request to the mobile terminal to obtain the IMSI of the mobile terminal; the mobile terminal sends its IMSI to the network selection function after receiving the ID request. ;
  • Step 405a If the network selection function fails to obtain the default network slice identifier of the mobile terminal, the network selection function queries the "IMSI-network slice mapping table" according to the IMSI to determine the network slice to which the mobile terminal belongs, and the query mapping table is further Returning the location of the subscription data (HSS) corresponding to the mobile terminal;
  • HSS subscription data
  • Step 405b If the network selection function obtains the location of the HSS corresponding to the mobile terminal when querying the "IMSI-Network Slice Mapping Table", the network selection function sends a message to the HSS, acquires the subscription data related to the network slice, and according to the subscription data, The mobile terminal selects a network slice;
  • Step 406 The network selection function selects a service node according to the network slice selected for the mobile terminal, where the network selection function may be based on the network slice identifier of the network slice selected for the mobile terminal and the information of the wireless access point, such as the wireless access point ID. Or the TAI and other information of the cell where the mobile terminal is located, construct the FQDN of the serving node, and obtain the exact ID or IP address of the serving node in the selected network slice by querying the DNS manner.
  • the manner in which the network selection function selects the network slice serving node is not The method is limited to the DNS mode.
  • the network selection function may select a service node according to the network slice name, the location information of the mobile terminal (such as the wireless access point ID, the current TAI, and the like) and the network topology information. Therefore, it will not be repeated here;
  • Step 407 The network selection function sends a message to the wireless access point, and redirects the access request of the wireless access point to the selected service node.
  • Step 408 The wireless access point sends an access request message to the designated serving node (ie, the destination serving node).
  • Step 409 The service node authenticates the terminal. If the subscription database is stored in the network slice, when the subscription database in the network slice does not have the subscription data corresponding to the mobile terminal, the service node fails to authenticate the mobile terminal, and rejects the connection of the mobile terminal. If the subscription data of the mobile terminal is found and the authentication is successful, the subsequent process is continued;
  • Step 410 The serving node sends a location update request to the HSS.
  • Step 411 The HSS sends the subscription data of the mobile terminal to the service node, where the network subscription list is included in the user subscription data.
  • Step 412 The service node checks whether the network slice where the current serving node is located in the allowed network slice list in the user subscription data, and allows the mobile terminal to access if the network slice where the service node is located is in the allowed network slice list of the user subscription data. If the network slice where the service node is located is not in the allowed network slice list of the user subscription data, the access of the mobile terminal is rejected;
  • Step 413 The subsequent process is continued between the mobile terminal and the network, such as establishment of an IP session, establishment of a bearer, etc., wherein the serving node allocates a temporary ID (GUTI) to the mobile terminal in an Attach Accept message, in the temporary
  • GUI temporary ID
  • the network slice ID is included in the MME Group ID and/or MME ID in the ID.
  • the mobile terminal when the mobile terminal is attached to the network, the mobile terminal may enter an idle state. (IDLE) and move to a new location in the idle state.
  • IDLE idle state
  • the signaling of the mobile terminal should be sent to the previously attached network slice. Since the temporary ID assigned to the mobile terminal by the serving node of the network slice accessed by the mobile terminal includes the network slice ID of the network slice before the mobile terminal becomes the IDLE, the system may send the mobile terminal according to the network slice ID in the temporary ID. The signaling is imported into the network slice attached to the mobile terminal.
  • FIG. 11 is a schematic diagram of a mobile terminal initiating a TAU process. The steps shown in Figure 11 are described in detail as follows:
  • Step 501 The mobile terminal sends a TAU request to the wireless access point, where the message carries the GUTI allocated by the network to the mobile terminal;
  • Step 502 If the wireless access point (base station eNB) cannot send the TAU request to the MME Group ID and/or the MME identified by the MME ID in the GUTI, the wireless access point sends the TAU request sent by the mobile terminal to the network selection.
  • Step 503 The network selection function checks the GUTI of the UE, and determines the network slice accessed by the UE.
  • the MME ID in the GUTI can be used to identify the network slice, or the MME Group ID is used to identify the network slice, or the MME Group ID and the MME.
  • the combination of IDs is used to identify a network slice.
  • the mobile terminal selects a service node that can be accessed as a service node of the mobile terminal in the network slice.
  • Step 504 The network selection function sends a message to the wireless access point, and redirects the TAU request of the wireless access point to the selected service node (ie, New MME).
  • the selected service node ie, New MME
  • Step 505 The wireless access point sends a TAU request to the selected serving node.
  • Step 506 The subsequent process is continued.
  • the new serving node allocates a new GUTI to the UE in the TAU accept message, and includes the identifier of the new service node in the new GUTI.
  • FIG. 12 is a schematic flowchart of a mobile terminal initiating a service request (Service Request). The steps shown in Figure 12 are described as follows:
  • Step 601 The mobile terminal sends a service request to the wireless access point.
  • the UE sends the identifier information of the service node to the wireless access point, where the identifier information of the service node includes the network slice ID and Service node identifier;
  • the mobile terminal may carry the MME ID in the RRC message for sending the service request;
  • the mobile terminal When the network slice ID is identified by using the MME Group ID (as shown in FIG. 4) or the MME Group ID+MME ID (as shown in FIG. 5), the mobile terminal not only carries the MME ID but also carries the MME ID in the RRC message for sending the service request.
  • the field that is planned to be used as the network slice identifier in the MME Group ID needs to be included in the RRC message for sending the service request and sent to the wireless access point. If the last 8 bits of the MME Group ID are planned to be used as the network slice identifier, then the mobile device is moved.
  • the RRC message that the terminal sends the service request carries the last 8 bits of the MME Group ID + MME ID. In this case, since the existing protocol only supports the delivery of the MME ID, the existing protocol needs to be extended. If the protocol extension cannot be extended, the protocol needs to be parsed. GUTI in the NAS message, thereby obtaining the network slice ID;
  • Step 602 The wireless access point acquires an ID and an IP address of the serving node serving the UE according to the network slice ID+MME ID carried in the RRC message of the mobile terminal, where the network slice identifier is part of the MME ID.
  • the wireless access point may obtain the IP address of the service node by using an existing method; if the network slice identifier is identified by using the MME Group ID+MME ID, the wireless access point needs to combine the MME Group ID and the MME ID to address the service node.
  • the wireless access point sends the service request of the mobile terminal to the service node;
  • Step 603 Perform a subsequent process between the service node and the UE.
  • the embodiment of the present invention further provides a network slice selection system, including: a determining module 131, configured to: determine a network slice identifier of a network slice accessed by the mobile terminal; and the processing module 132 is configured to Selecting a service node for the mobile terminal according to the network slice identifier.
  • a network slice selection system including: a determining module 131, configured to: determine a network slice identifier of a network slice accessed by the mobile terminal; and the processing module 132 is configured to Selecting a service node for the mobile terminal according to the network slice identifier.
  • the determining module 131 is configured to:
  • the network slice identifier includes: a network slice name or a network slice ID.
  • the system is applied to a wireless access point or a service node, or is deployed independently.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the problem that the network slice selection cannot be performed when the operator deploys multiple network slices in the network of the related art is solved, and the appropriate network slice and service can be selected for the mobile terminal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本文公布一种网络切片的选择方法及系统，包括：网络选择功能确定移动终端接入的网络切片的网络切片标识；网络选择功能根据网络切片标识为移动终端选择服务节点。

Description

一种网络切片的选择方法及系统 技术领域
本申请涉及但不限于通信领域。
背景技术
移动通信在二十多年时间里得到了飞速发展，给人们的生活方式、工作方式以及社会政治、经济等方面都带来了巨大的影响。人类社会进入高效的信息化时代，多方面业务应用需求呈现爆发式增长，给未来无线移动带宽系统在频率、技术以及运营等方面都带来了巨大的挑战。
未来的移动网络除了为人人通信提供服务外，还将为越来越多的物联网终端提供接入服务。物联网接入给移动网络带来了新的挑战和机遇。不同类型的物联网对网络的需求千差万别，有的要求网络提供高实时高可靠服务，如远程医疗，有的则要求提供有规律的小数据量传输服务，如远程抄表系统。针对不同的业务需求，移动网络可能需要适当优化才能满足业务需求。越来越多的物联网对移动网络提出了越来越多不同的优化需求，其中，有些优化需求还可能相互矛盾，因此，一张融合的核心网越来越无法满足多种不同的物联网需求。
随着网络功能虚拟化(NFV，Network Function Virtualization)的出现，核心网功能可以基于通用硬件构建，而毋须基于专用硬件平台。NFV的出现使得运营商为不同的网络业务需求构建不同的虚拟核心网络成为可能。为不同网络业务需求构建的虚拟核心网称为一个网络切片。虚拟核心网中的网络功能可根据网络业务需求进行优化、定制。基于NFV技术的网络切片可根据需求快速部署，以快速满足不同场景的需求。
图1为网络切片的示意图。在图1中，示例了三个网络切片(网络切片1、2、3)。一个网络切片构成一个虚拟核心网，为一组特定的用户终端(UE)提供移动网络接入服务。一个典型的网络切片包括一组虚拟化的核心网功能，如移动管理实体(MME，Mobility Management Entity)功能、策略 与计费规则功能单元(PCRF，Policy and Charging Rules Function)功能、归属签约用户服务器(HSS，Home Subscriber Server)功能、网关控制器(GW-C)功能、计费网关(CG，Charging Gateway)功能等。网络切片由运营商根据需求和运营商策略进行构建，一个网络切片包括的功能也由运营商根据需求和运营商策略决定，比如，某些网络切片除了包括控制面功能外还可以包括专用的转发面；而某些网络切片可能只包括一些基本的控制面功能，如只包括MME和网关控制器，其他的核心网相关功能与其他网络切片共享。
构建网络切片需要NFV管理编排域(MANO，Management and Orchestration)架构的支持。运营商根据大客户的网络服务需求确定网络切片所需的功能及其容量等信息，并请求MANO申请资源、将网络切片的功能实例化，并分配和配置功能间的连接关系，从而构造一个虚拟核心网。
在相关技术的网络中，一个基站(eNB)只与每个公共陆地移动网络(PLMN，Public Land Mobile Network)的一个MME组(Group)相连，终端接入时选择所要接入的PLMN，根据终端选择的PLMN，eNB可唯一确定选中的一个MME Group，eNB再从MME Group中为终端选择一个服务MME。相关技术的网络相当于一个PLMN只有一个网络切片。
然而，当运营商的网络中有多个网络切片存在时，在一个PLMN中，一个eNB将连接多个网络切片的MME，一个eNB与多个不同网络切片的MME相连时，只根据终端选择的PLMN，eNB无法选择要提供服务的网络切片及网络切片中的MME。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本文提供一种网络切片的选择方法及系统，用来解决在相关技术的网络中当运营商部署多个网络切片时无法进行网络切片选择的问题。
一种网络切片的选择方法，包括：网络选择功能确定移动终端接入的网 络切片的网络切片标识；网络选择功能根据所述网络切片标识为移动终端选择服务节点。
可选地，所述网络选择功能确定移动终端接入的网络切片的网络切片标识包括：
网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识；或者，
网络选择功能根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识。
可选地，网络切片标识包括：网络切片名或者网络切片序号ID。
可选地，所述网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识包括：
网络选择功能接收移动终端发送的非接入层(NAS)消息或无线资源控制(RRC)消息携带的网络切片标识；或者，
网络选择功能通过无线接入点接收移动终端发送的NAS消息或RRC消息携带的网络切片标识。
可选地，所述网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识之前，该方法还包括：在移动终端中配置允许网络切片信息。
可选地，所述在移动终端中配置允许网络切片信息包括：
通过开放移动联盟(OMA)设备管理(DM)方式在移动终端中配置允许网络切片信息；或者，
通过预配置方式在移动终端中配置允许网络切片信息；或者，
通过预配置方式将允许网络切片信息配置到移动终端中的全球用户识别卡(USIM)中。
可选地，所述网络选择功能根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识包括：
网络选择功能根据移动终端的身份信息，通过查询预配置的移动终端的 身份信息与网络切片的映射关系，确定移动终端接入的网络切片的网络切片标识；或者，
网络选择功能根据移动终端的身份信息，查询移动终端的签约数据的位置信息，根据签约数据的位置信息获取签约数据，并根据签约数据确定移动终端接入的网络切片的网络切片标识。
可选地，移动终端的身份信息包括移动终端的国际移动用户识别码(IMSI)。
可选地，所述网络选择功能根据网络切片标识为移动终端选择服务节点包括：
网络选择功能根据由网络切片标识构造的服务节点的完全合格域名(FQDN)查询域名系统(DNS)，确定服务节点；或者，
网络选择功能根据网络切片标识查询对应网络切片的网络拓扑信息，确定服务节点。
可选地，服务节点为4G中的MME或具有4G中MME类似功能的逻辑实体。
可选地，网络选择功能部署在无线接入点或者服务节点中。
一种网络切片的选择方法，包括：网络选择功能确定移动终端接入的网络切片的网络切片标识；网络选择功能根据所述网络切片标识为移动终端选择服务节点；服务节点根据允许网络切片列表确定是否允许移动终端接入所述网络切片标识所指示的网络切片。
可选地，允许网络切片列表包含在移动终端的签约数据中。
一种网络切片的选择方法，包括：网络选择功能确定移动终端接入的网络切片的网络切片标识；网络选择功能根据所述网络切片标识为所述移动终端选择服务节点；服务节点为移动终端分配临时ID，其中，临时ID的移动管理实体MME ID和/或MME组ID中包括网络切片ID。
一种网络切片的选择系统，包括：确定模块，设置为：确定移动终端接入的网络切片的网络切片标识；处理模块，设置为：根据所述网络切片标识为移动终端选择服务节点。
可选地，确定模块，是设置为：
通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识；或者，
根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识。
可选地，网络切片标识包括：网络切片名或者网络切片ID。
可选地，所述系统应用于无线接入点或服务节点。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述任一项的方法。
在本发明实施例中，网络选择功能确定移动终端接入的网络切片的网络切片标识；网络选择功能根据网络切片标识为移动终端选择服务节点。如此，当运营商部署了多个网络切片时，通过本发明实施例可以为移动终端选择合适的网络切片并提供服务，从而解决了相关技术的网络中当运营商部署多个网络切片时无法进行网络切片选择的问题。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为网络切片的示意图；
图2为本发明实施例提供的网络切片的选择方法的流程图；
图3为以MME序号(ID)的一部分用作网络切片ID的示意图；
图4为以MME Group ID作为网络切片ID的示意图；
图5为以MME Group ID和MME ID结合用来标识网络切片的示意图；
图6为根据网络切片名获取该网络切片中服务节点信息的示意图；
图7为用户签约数据的设置示意图；
图8为本发明实施例的应用架构示意图；
图9为本发明实施例一提供的网络切片的选择方法的流程图；
图10为本发明实施例二提供的网络切片的选择方法的流程图；
图11为移动终端发起跟踪区更新(TAU，Tracking Area Update)流程的示意图；
图12为移动终端发起业务请求时的流程示意图；
图13为本发明实施例的网络切片的选择系统的示意图。
本发明的实施方式
以下结合附图对本发明的实施方式进行说明，应当理解，以下所说明的实施例仅用于说明和解释本发明，并不用于限定本发明。
图2为本发明实施例提供的网络切片的选择方法的流程图。如图2所示，本实施例提供的网络切片的选择方法包括以下步骤：
步骤11：网络选择功能确定移动终端接入的网络切片的网络切片标识。
其中，网络切片标识包括：网络切片名或者网络切片序号(ID)。
其中，网络切片名是网络切片的名字，用于唯一标识网络切片。网络切片名在运营商的网络中唯一。运营商标识(PLMN ID)加网络切片名可唯一标识全球范围内的一个网络切片。网络切片名是一个字符串，该字符串遵循RFC2181、RFC1035和RFC1123定义的名字格式。举例而言，用网络切片名mHealth.ns标识一个医疗网络，用网络切片名xMBB.ns标识移动宽带网络。另外，一个网络切片可同时有多个网络切片名。
网络切片ID是用户全球唯一临时终端标识(GUTI，Globally Unique Temporary UE Identity)的一部分，用于唯一标识一个运营商网络中的一个网络切片。根据终端(UE)的GUTI可查询到UE当前所接入的网络切片。运营商可规划MME ID和/或MME Group ID的一部分作为网络切片ID。
于一实施例中，MME ID的一部分用作网络切片ID。MME ID的长度在第四代移动通信技术(4G)中定义为8位，在网络规划时，运营商可将MME ID划分为2段：一段标识网络切片，一段用于标识网络切片中的MME Group中的MME。比如，MME ID的高3位作为网络切片ID，低5位用于标 识MME，如此，系统一共可支持8个网络切片，每个网络切片中最多可容纳32个MME。如图3所示，MME Group 1管理了三个跟踪区(TA，Tracking Area)：TA1、TA2和TA3，MME Group1中有两个网络切片：网络切片1和网络切片2，每个网络切片中有一组MME，MME Group1管理的三个TA中的eNB均与每个MME有接口。在虚拟化之后，一个网络切片中的MME在一个MME Group中可虚拟化为一个整体，即，网络切片内部只有一个虚拟的MME。如此，用MME ID标识网络切片，最多可支持256个网络切片，这可能无法满足运营商越来越多的网络需求。
于另一实施例中，MME Group ID用作网络切片ID，一个MME Group中只有一个网络切片。如图4所示，一个MME Group代表一个网络切片。MME Group 1＝网络切片1，MME group 2＝网络切片2。这种划分方法的优点是简单，并且，由于MME Group ID的长度是16位，理论上可以支持更多的网络切片。然而，MME Group ID除了用来标识网络切片外，还要用来标识不同的物理位置，并且，这样的划分会浪费ID空间，使得MME ID的空间得不到充分利用。
于再一实施例中，MME Group ID和MME ID结合用来标识网络切片，即利用MME Group ID的一段和MME ID一起来标识网络切片。比如，MME Group ID的低5位+MME ID的高5位用来标识网络切片。如图5所示，MME Group 1和MME Group 2结合共支持4个网络切片，每个网络切片中可容纳128个MME。于本实施例中，需要在MME Group ID中预留一段用作网络切片ID，但实际的网络切片ID所需的空间可由运营商根据需要自行规划。
于此，步骤11包括：
网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识；或者，
网络选择功能根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识。
其中，网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识包括：
网络选择功能接收移动终端发送的非接入层(NAS，Non-Access Stratum)消息或无线资源控制(RRC，Radio Resource Control)消息携带的网络切片标识；或者，
网络选择功能通过无线接入点接收移动终端发送的NAS消息或RRC消息携带的网络切片标识。
于此，网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识之前，该方法还包括：在移动终端中配置允许网络切片信息。
其中，在移动终端中配置允许网络切片信息包括：
通过开放移动联盟(OMA，Open Mobile Alliance)设备管理(DM，Device Management)方式在移动终端中配置允许网络切片信息；或者，
通过预配置方式在移动终端中配置允许网络切片信息；或者，
通过预配置方式将允许网络切片信息配置到移动终端中的全球用户识别卡(USIM，Universal Subscriber Identity Module)中。
为了方便网络切片的选择，在移动终端中配置允许网络切片信息(例如，允许网络切片列表)，移动终端在接入时根据需要从允许网络切片列表中选择一个网络切片进行接入。移动终端中所配置的允许网络切片列表中的网络切片可用网络切片ID或网络切片名进行标识，同时，在允许网络切片列表中的每个网络切片都关联一个网络切片描述符，即，将网络切片名或网络切片ID与网络切片描述符关联。其中，网络切片描述符是用于直观描述网络切片的文字或图片，网络切片描述符用于向用户呈现不同的网络切片。移动终端给用户呈现允许网络切片列表时，为方便用户阅读，可呈现网络切片描述符。若移动终端中配置的允许网络切片列表中包括多个网络切片，移动终端允许用户人工选择一个网络切片接入。当用户选择一个网络切片描述符后，移动终端可将网络切片描述符自动转换为网络切片名或网络切片ID，用于在接入流程中使用。
于此，若移动终端可以获得用户想接入的网络切片的网络切片名或网络切片ID(例如，通过人工选择或从允许网络切片列表中自动选择)，移动终 端需将网络切片名或网络切片ID发送给网络选择功能，以便网络选择功能在为该移动终端选择服务节点时做参考。其中，移动终端将网络切片标识发送给网络选择功能时有以下两种可选的方式：在RRC消息中发送；或者，在NAS消息中发送。
于此，网络选择功能根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识包括：
网络选择功能根据移动终端的身份信息，通过查询预配置的移动终端的身份信息与网络切片的映射关系，确定所述移动终端接入的网络切片的网络切片标识；或者，
网络选择功能根据移动终端的身份信息，查询所述移动终端的签约数据的位置信息，根据签约数据的位置信息获取签约数据，并根据所述签约数据确定所述移动终端接入的网络切片的网络切片标识。
其中，移动终端的身份信息与网络切片的映射关系集成在缺省的HSS中。移动终端的身份信息包括移动终端的国际移动用户识别码(IMSI，International Mobile Subscriber Identification Number)。
当移动终端在接入时未发送网络切片标识时，或者，当网络选择功能决定不采纳移动终端发送的网络切片标识时，网络选择功能可根据移动终端的身份信息(如IMSI)确定该移动终端所要接入的网络切片的网络切片标识。于一实施例中，将IMSI号段分段，并为每个网络切片分配一段IMSI号段，如此，网络选择功能可方便地根据IMSI号段确定移动终端所属的网络切片。然而，这种方法较难执行，因为运营商的网络中已经有成千上万未经规划的IMSI在使用中。于另一实施例中，网络选择功能从移动终端的签约数据中获取移动终端的缺省网络切片名或缺省网络切片ID。但是，网络切片可能有将用户签约数据私有化的需求(出于安全原因)，网络选择功能可能无权访问这些网络切片中的用户签约数据。于再一实施例中，预配置移动终端身份信息与网络切片的映射关系(例如，IMSI-网络切片映射表)。网络选择功能根据移动终端的IMSI查询该映射表，可确定该IMSI对应的移动终端所属的网络切片。于此，IMSI-网络切片映射表可集成在缺省网络切片中的HSS中，或者作为数据单独保存。
步骤12：网络选择功能根据网络切片标识为移动终端选择服务节点。
其中，服务节点为第四代移动通信技术(4G)中的MME或具有4G中MME类似功能的逻辑实体。
于此，步骤12包括：
网络选择功能根据由网络切片标识构造的服务节点的完全合格域名(FQDN，Fully Qualified Domain Name)查询域名系统(DNS，Domain Name System)，确定服务节点；或者，
网络选择功能根据网络切片标识查询对应网络切片的网络拓扑信息，确定服务节点。
举例而言，利用网络切片名可构造网络切片中服务节点的FQDN。比如，用网络切片名xMBB.ns构造移动宽带网络中的MME的FQDN如下：mme.tai.xMBB.ns。该FQDN标识xMBB.ns标识的移动宽带网络中服务于某跟踪区标识(TAI，tracking area identity)的所有MME，在查询域名系统(DNS，Domain Name System)时，DNS可将服务于该TAI的移动宽带网络中的所有MME返回给查询者，查询者可在返回的MME列表中选择一个MME作为移动终端的服务节点。DNS也可给查询者返回一个服务于该TAI的更精确的MME的FQDN，如，DNS给查询者返回：mme_n.xMBB.ns，查询者再使用该新FQDN查询DNS，以获取服务MME的网络协议(IP，Internet Protocol)地址。
于另一例子中，采用网络切片名xMBB.ns构造移动带宽网络中的MME的FQDN如下：mme.enbid.xMBB.ns。该FQDN标识xMBB.ns移动宽带网络切片中服务于某一eNB的所有MME，在查询DNS时，DNS可将服务于该eNB的移动宽带网络中的所有MME返回给查询者，查询者可在返回的MME列表中选择一个MME为移动终端服务。DNS也可给查询者返回一个服务于该eNB的更精确的MME的FQDN，如，DNS给查询者返回：mme_n.xMBB.ns，查询者再使用该新FQDN查询DNS，以获取服务MME的IP地址。
除DNS方式之外，也可采用其他方式从网络切片名获取该网络切片中 服务节点的名字或IP地址。图6为根据网络切片名获取该网络切片中服务节点信息的示意图。如图6所示，eNB收到来自移动终端的接入请求时向网络选择功能请求为该移动终端的接入分配MME，网络选择功能根据网络切片名查询该网络切片的网络拓扑信息，从而决定选择哪个MME为该移动终端服务。其中，在系统中保存每个网络切片的网络拓扑信息，一个网络切片的网络拓扑信息包括如下信息：网络切片中的MME Group的数量、每个MME Group的属性，如MME Group的部署位置、所服务的TA列表(list)、所连接的eNB列表等，每个MME group中的每个MME及其负荷等。如图6所示，网络切片名为xMBB.ns所标识的网络切片中包含3个MME Group，其中，MME Group 1和MME Group 2与图6中的eNB有连接。
如图6所示，其中，步骤201：当eNB收到来自移动终端的接入请求时，eNB向网络选择功能发送消息，请求其为该移动终端分配服务节点MME。若UE携带了所请求接入的网络切片的网络切片名，比如，UE所携带的网络切片名为xMBB.ns，则eNB将UE所携带的网络切片名发送给网络选择功能。
步骤202：网络选择功能根据网络切片名查找该网络切片的拓扑信息。根据网络切片名xMBB.ns，网络选择功能获知xMBB.ns中共有三个MME Group。网络选择功能再根据请求分配MME的eNB的信息，如eNB ID和/或eNB所支持的TAI等信息，在该网络切片的拓扑信息中进一步筛选所选择的MME Group。假设图6中eNB所支持的TAI＝TA1，在图6中的网络拓扑信息中MME Group 1和MME Group 2支持TA1，因此，可选择MME Group1和MME Group 2为该移动终端服务。假设网络选择功能选择MME Group 1为该移动终端服务，网络选择功能从该MME Group 1的MME列表中选择一个负荷较轻的MME为该移动终端服务，例如，选择了MME2。网络选择功能将所选中的MME2的信息(如MME2的IP地址)返回给eNB。eNB可继续后续的接入流程。
于本实施例中，网络选择功能例如部署在无线接入点或服务节点中，或者独立部署。
另外，在步骤12之后，服务节点根据允许网络切片列表确定是否允许 所述移动终端接入所述网络切片标识所指示的所述网络切片。其中，允许网络切片列表包含在所述移动终端的签约数据中。
其中，允许网络切片列表(ANSL)中包括了允许该移动终端接入的一个或多个网络切片的网络切片名和/或网络切片ID。ANSL中的网络切片可按优先级进行排序，也可以是无优先级排序。当移动终端的签约数据中包含了ANSL时，服务节点在收到移动终端的接入请求时，查询签约数据中的ANSL，决定是否允许该移动终端接入该网络切片。若该移动终端的ANSL中包含了所述网络切片，则允许该移动终端接入，若不包含所述网络切片，则拒绝该移动终端接入。
图7为用户签约数据的设置示意图。如图7所示，用户的签约数据可能保存在网络切片内，或保存在网络切片间共享的存储位置。图7中的网络切片1和网络切片2共享用户签约数据存储空间，网络切片3中用户签约数据保存在网络切片内。当用户签约数据保存在网络切片内时，若移动终端不被允许接入该网络切片，则在该网络切片内的用户签约数据库中将找不到该移动终端的签约数据。如此一来，在对该移动终端进行认证时即会失败，网络切片的服务节点可据此拒绝该移动终端接入。
另外，在步骤12之后，服务节点为移动终端分配临时ID，其中，所述临时ID的MME ID和/或MME Group ID中包括网络切片ID。移动终端在后续接入时可将临时ID中的网络切片ID发送给网络选择功能。
综上可知，与网络切片名相比，网络切片ID不仅更短，并且，可以更方便地被无线接入点使用，以便选择网络切片和服务节点，但缺点是，运营商在规划网络时，一旦网络切片ID空间重新规划，需给每个移动终端重新配置允许网络切片信息，这使得系统的灵活性变差。使用网络切片名，在选择网络切片和服务节点时虽然流程稍复杂，但是，运营商的网络切片规划更灵活。
本发明实施还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述网络切片的选择方法。
图8为本发明实施例的应用架构示意图。如图8所示，网络选择功能设置为根据网络切片名或网络切片ID及其他信息(如移动终端当前位置(如TAI或eNB ID))为移动终端选择网络切片中对应的服务节点。其中，网络选择功能可集成到无线接入点或服务节点中，或者独立设置。在逻辑上，可将独立设置的网络选择功能与其他公共服务功能(比如DNS、用户签约数据等)组成一个缺省网络切片。当无线接入点无法为移动终端选择服务节点时，无线接入点将消息发送给缺省网络切片中的网络选择功能。网络选择功能在为移动终端选择了服务节点之后，将无线接入点发送的消息重定向到所选中的服务节点。
图9为本发明实施例一提供的网络切片的选择方法的流程图。请一并参考图8及图9。于本实施例中，当移动终端初次接入时，移动终端在初始接入请求消息中将选择的网络切片标识(网络切片名或网络切片ID)发送给网络选择功能，网络选择功能根据移动终端请求的网络切片为移动终端选择对应网络切片中的服务节点。如图9所示，本实施例中的步骤说明如下：
步骤301：移动终端(UE)向无线接入点发送接入请求，在4G中该接入请求是Attach Request消息，移动终端在发送接入请求时决定所要接入的网络切片，并将网络切片标识发送给无线接入点，移动终端可在NAS消息中或在RRC消息中将所选择的网络切片标识发送给无线接入点；
步骤302：无线接入点若不能根据网络切片标识选择服务节点，无线接入点将从移动终端收到的接入请求消息(包括UE选择的网络切片标识)发送给网络选择功能；
步骤303：网络选择功能根据UE选择的网络切片标识为UE选择服务节点，其中，网络选择功能可根据UE选择的网络切片标识及无线接入点的位置信息，如无线接入点ID或UE所在小区的TAI等信息，构造服务节点的FQDN，并通过查询DNS的方式获得所选择网络切片中服务节点的精确ID或IP地址，网络选择功能选择网络切片服务节点的方式不限于DNS方式，可选地，网络选择功能可根据网络切片名、UE位置信息(如无线接入点ID、当前所在TAI等)、网络拓扑信息，选择服务节点，描述例如参见图6，故于此不再赘述；
步骤304：网络选择功能向无线接入点发送消息，将无线接入点的接入请求重定向到选中的服务节点；
步骤305：无线接入点向指定的服务节点发送接入请求消息；
步骤306：服务节点对移动终端进行认证，若签约数据库保存在网络切片内，若移动终端不被允许接入该网络切片，在签约数据库中将找不到该移动终端对应的签约数据，若无该移动终端对应的签约数据，服务节点认证该移动终端失败，拒绝该移动终端接入，若找到该移动终端的签约数据，且认证成功，则继续后续流程；
步骤307：服务节点向HSS发送位置更新请求；
步骤308：HSS将移动终端的签约数据发送给服务节点，其中，在用户签约数据中包含允许网络切片列表；
步骤309：服务节点根据检查当前服务节点所在网络切片是否在用户签约数据中的允许网络切片列表中，若服务节点所在网络切片在用户签约数据的允许网络切片列表中，则允许该移动终端接入；若服务节点所不在网络切片在用户签约数据的允许网络切片列表中，则拒绝该移动终端接入；
步骤310：移动终端与网络之间继续后续流程，如IP会话的建立、承载的建立等，其中，服务节点在接入接受(Attach Accept)消息中给移动终端分配临时ID(GUTI)，在临时ID中的MME Group ID和/或MME ID中包含网络切片ID。
此外，为了支持更大的灵活性，针对某些不能在接入时将网络切片标识发送给网络的移动终端，或网络选择功能决定不接受移动终端选择的网络切片时(如：网络选择功能无法支持漫入用户选择的归属PLMN(HPLMN，Home PLMN)的网络切片时)，网络选择功能在终端接入时为移动终端选择网络切片。图10为本发明实施例二提供的网络切片的选择方法的流程图。请一并参考图8及图10。于本实施例中，网络选择功能首先获取移动终端的身份信息，根据身份信息为该移动终端选择网络切片和服务节点。
于本实施例中，网络选择功能获取移动终端的身份信息的方式有如下两种：从源服务节点获取；直接从移动终端获取。于此，移动终端的身份信息 例如为移动终端的IMSI。其中，若从源服务节点获取移动终端的身份信息，源服务节点可将移动终端的签约数据或缺省网络切片标识发送给网络选择功能，网络选择功能根据签约数据为移动终端选择接入的网络切片；当网络选择功能无法从源服务节点获得签约数据或缺省网络切片时，网络选择功能根据移动终端的IMSI查询该移动终端所属的网络切片；或者，根据移动终端的IMSI查询该移动终端的签约数据所在的位置，并从移动终端所在的HSS中获取签约数据，根据签约数据为移动终端选择接入的网络切片。
如图10所示，本实施例中的步骤说明如下：
步骤401：移动终端向无线接入点发送接入请求，在4G中该接入请求是Attach Request消息，在移动终端发送的接入请求中携带了移动终端的IMSI或上次接入时的临时ID(如4G的GUTI)；
步骤402：无线接入点将从移动终端收到的接入请求消息发送给网络选择功能；
步骤403：若在接入请求消息中携带了移动终端的临时ID(如，GUTI)，网络选择功能根据GUTI查找上次为UE服务的服务节点(即源服务节点)，并向该服务节点发送ID请求，以获取移动终端的IMSI；若源服务节点中保存了移动终端的上下文，源服务节点将UE的IMSI连同签约数据中的允许网络切片列表或缺省网络切片标识发送给网络选择功能；
步骤404：若网络选择功能未能成功获得移动终端的IMSI，网络选择功能向移动终端发送ID请求，以获取移动终端的IMSI；移动终端在收到ID请求后将自己的IMSI发送给网络选择功能；
步骤405a：网络选择功能若未能获得移动终端的缺省网络切片标识，网络选择功能根据IMSI查询“IMSI-网络切片映射表”，以决定该移动终端所属的网络切片，通过该查询映射表还可返回移动终端对应的签约数据(HSS)的位置；
步骤405b：若网络选择功能在查询“IMSI-网络切片映射表”时获得了移动终端对应的HSS的位置，网络选择功能向HSS发送消息，获取与网络切片相关的签约数据，并根据签约数据为移动终端选择网络切片；
步骤406：网络选择功能根据为移动终端选择的网络切片选择服务节点，其中，网络选择功能可根据为移动终端选择的网络切片的网络切片标识及无线接入点的信息，如无线接入点ID或移动终端所在小区的TAI等信息，构造服务节点的FQDN，并通过查询DNS的方式获得所选择网络切片中服务节点的精确ID或IP地址，然而，网络选择功能选择网络切片服务节点的方式不限于DNS方式，可选地，网络选择功能可根据网络切片名、移动终端的位置信息(如无线接入点ID、当前所在TAI等)、网络拓扑信息，选择服务节点，其描述参见图6，故于此不再赘述；
步骤407：网络选择功能向无线接入点发送消息，将无线接入点的接入请求重定向到选中的服务节点；
步骤408：无线接入点向指定的服务节点(即，目的服务节点)发送接入请求消息；
步骤409：服务节点对终端进行认证；若签约数据库保存在网络切片内，当网络切片内的签约数据库中无该移动终端对应的签约数据，服务节点认证该移动终端失败，拒绝该移动终端的接入；若找到该移动终端的签约数据，且认证成功，则继续后续流程；
步骤410：服务节点向HSS发送位置更新请求；
步骤411：HSS将移动终端的签约数据发送给服务节点，其中，在用户签约数据中包含允许网络切片列表；
步骤412：服务节点根据检查当前服务节点所在网络切片是否在用户签约数据中的允许网络切片列表中，若服务节点所在网络切片在用户签约数据的允许网络切片列表中，则允许该移动终端接入，若服务节点所在网络切片不在用户签约数据的允许网络切片列表中，则拒绝该移动终端的接入；
步骤413：移动终端与网络之间继续后续流程，如IP会话的建立、承载的建立等，其中，服务节点在接入接受(Attach Accept)消息中给移动终端分配临时ID(GUTI)，在临时ID中的MME Group ID和/或MME ID中包含网络切片ID。
此外，当移动终端附着到网络后，移动终端可能会进入空闲态 (IDLE)，并且在空闲态移动到一个新的位置。在新的位置发起业务(Service Request)或发起跟踪区更新(TAU，Tracking Area Update)流程时，应将移动终端的信令发送到之前附着的网络切片去。由于在移动终端变成IDLE之前，移动终端所接入的网络切片的服务节点给移动终端分配的临时ID中包含所属网络切片ID，系统可以根据临时ID中的网络切片ID将移动终端发来的信令导入到移动终端所附着的网络切片去。
图11为移动终端发起TAU流程的示意图。图11所示的步骤详细描述如下：
步骤501：移动终端给无线接入点发送TAU请求，在消息中携带网络给移动终端分配的GUTI；
步骤502：若无线接入点(基站eNB)不能将TAU请求发送给GUTI中的MME Group ID和/或MME ID标识的MME，则无线接入点将移动终端发来的TAU请求发送给网络选择功能；
步骤503：网络选择功能检查UE的GUTI，确定UE接入的网络切片，其中，GUTI中的MME ID可用来标识网络切片，或者，MME Group ID用来标识网络切片，或者，MME Group ID和MME ID的结合用来标识一个网络切片，网络选择功能决定移动终端接入的网络切片后，为移动终端在该网络切片中选择一个可以接入的服务节点作为移动终端的服务节点；
步骤504：网络选择功能向无线接入点发送消息，将无线接入点的TAU请求重定向到选中的服务节点(即，New MME)；
步骤505：无线接入点给选中的服务节点发送TAU请求；
步骤506：继续后续流程，新的服务节点在TAU接受消息中给UE分配新的GUTI，在新GUTI中包含新服务节点的标识。
图12为移动终端发起业务请求(Service Request)时的流程示意图。图12所示的步骤描述如下：
步骤601：移动终端给无线接入点发送业务请求，在发送业务请求的RRC消息中，UE将服务节点的标识信息发送给无线接入点，其中，服务节点的标识信息中包括网络切片ID和服务节点标识；
其中，当网络切片ID使用MME ID或MME ID(如图3所示)的一部分进行标识时，移动终端在发送业务请求的RRC消息中携带MME ID即可；
当网络切片ID使用MME Group ID(如图4所示)或MME Group ID+MME ID(如图5所示)进行标识时，移动终端在发送业务请求的RRC消息中不仅要携带MME ID，还需将MME Group ID中规划用作网络切片标识的字段包含在发送业务请求的RRC消息中发送给无线接入点，假设将MME Group ID的后8位规划为用作网络切片标识，则在移动终端发送业务请求的RRC消息中携带MME Group ID的后8位+MME ID，此时，由于已有协议仅支持传递MME ID，需要对已有协议进行扩展，若不能对协议扩展，则需要解析NAS消息中的GUTI，从而获得网络切片ID；
步骤602：无线接入点根据移动终端在发送业务请求的RRC消息中携带的网络切片ID+MME ID获取服务该UE的服务节点的ID和IP地址，其中，若网络切片标识是MME ID的一部分，则无线接入点可采用已有方法获取服务节点的IP地址；若网络切片标识使用MME Group ID+MME ID进行标识时，无线接入点需将MME Group ID与MME ID结合寻址服务节点，无线接入点将移动终端的业务请求发送给服务节点；
步骤603：服务节点与UE间进行后续流程。
此外，如图13所示，本发明实施例还提供一种网络切片的选择系统，包括：确定模块131，设置为：确定移动终端接入的网络切片的网络切片标识；处理模块132，设置为：根据所述网络切片标识为所述移动终端选择服务节点。
于一实施例中，所述确定模块131，是设置为：
通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识；或者，
根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识。
其中，网络切片标识包括：网络切片名或者网络切片ID。
于此，所述系统应用于无线接入点或服务节点，或者独立部署。
此外，关于上述系统的处理流程同上述方法所述，故于此不再赘述。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
上述实施例中的装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有多种变化和改进，这些变化和改进都落入要求保护的本发明范围内。
工业实用性
通过本发明实施例，解决了相关技术的网络中当运营商部署多个网络切片时无法进行网络切片选择的问题，可以为移动终端选择合适的网络切片并提供服务。

Claims (15)

  1. 一种网络切片的选择方法，包括：
    网络选择功能确定移动终端接入的网络切片的网络切片标识；
    所述网络选择功能根据所述网络切片标识为所述移动终端选择服务节点。
  2. 如权利要求1所述的方法，其中，所述网络选择功能确定移动终端接入的网络切片的网络切片标识包括：
    网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识；或者，
    网络选择功能根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识。
  3. 如权利要求1或2所述的方法，其中，所述网络切片标识包括：网络切片名或者网络切片序号ID。
  4. 如权利要求2所述的方法，其中，所述网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识包括：
    网络选择功能接收移动终端发送的非接入层NAS消息或无线资源控制RRC消息携带的所述网络切片标识；或者，
    网络选择功能通过无线接入点接收移动终端发送的NAS消息或RRC消息携带的所述网络切片标识。
  5. 如权利要求2所述的方法，其中，所述网络选择功能通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识之前，还包括：在移动终端中配置允许网络切片信息。
  6. 如权利要求5所述的方法，其中，所述在移动终端中配置允许网络切片信息包括：
    通过开放移动联盟OMA设备管理DM方式在移动终端中配置允许网络切片信息；或者，
    通过预配置方式在移动终端中配置允许网络切片信息；或者，
    通过预配置方式将允许网络切片信息配置到移动终端中的全球用户识别卡USIM中。
  7. 如权利要求2所述的方法，其中，所述网络选择功能根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识包括：
    网络选择功能根据移动终端的身份信息，通过查询预配置的移动终端的身份信息与网络切片的映射关系，确定所述移动终端接入的网络切片的网络切片标识；或者，
    网络选择功能根据移动终端的身份信息，查询所述移动终端的签约数据的位置信息，根据签约数据的位置信息获取签约数据，并根据所述签约数据确定所述移动终端接入的网络切片的网络切片标识。
  8. 如权利要求2或7所述的方法，其中，所述移动终端的身份信息包括移动终端的国际移动用户识别码IMSI。
  9. 如权利要求1所述的方法，其中，所述网络选择功能根据所述网络切片标识为所述移动终端选择服务节点包括：
    所述网络选择功能根据由网络切片标识构造的服务节点的完全合格域名FQDN查询域名系统DNS，确定服务节点；或者，
    所述网络选择功能根据网络切片标识查询对应网络切片的网络拓扑信息，确定服务节点。
  10. 如权利要求1所述的方法，其中，
    所述服务节点为第四代移动通信技术4G中的移动管理实体MME或具有4G中MME类似功能的逻辑实体；
    所述网络选择功能部署在无线接入点或者服务节点中。
  11. 如权利要求1所述的方法，其中，所述网络选择功能根据所述网络切片标识为所述移动终端选择服务节点之后，所述方法还包括：
    所述服务节点根据允许网络切片列表确定是否允许所述移动终端接入所述网络切片标识所指示的所述网络切片。
  12. 如权利要求11所述的方法，其中，所述允许网络切片列表包含在所 述移动终端的签约数据中。
  13. 如权利要求1所述的方法，其中，所述网络选择功能根据所述网络切片标识为所述移动终端选择服务节点之后，所述方法还包括：
    所述服务节点为所述移动终端分配临时ID，其中，所述临时ID的移动管理实体MME ID和/或MME组ID中包括网络切片ID。
  14. 一种网络切片的选择系统，包括：
    确定模块，设置为：确定移动终端接入的网络切片的网络切片标识；
    处理模块，设置为：根据所述网络切片标识为所述移动终端选择服务节点。
  15. 如权利要求14所述的系统，其中，所述确定模块，是设置为：
    通过接收移动终端发送的网络切片标识确定移动终端接入的网络切片的网络切片标识；或者，
    根据移动终端的身份信息确定移动终端接入的网络切片的网络切片标识。
PCT/CN2016/082240 2015-07-22 2016-05-16 一种网络切片的选择方法及系统 WO2017012402A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US15/745,215 US20190021047A1 (en) 2015-07-22 2016-05-16 Method and System for Selecting Network Slice
ES16827093T ES2760078T3 (es) 2015-07-22 2016-05-16 Método de selección de segmento de red y sistema que utiliza el mismo
EP16827093.2A EP3327992B1 (en) 2015-07-22 2016-05-16 Method of selecting network slice and system utilizing same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510434262.3 2015-07-22
CN201510434262.3A CN106375987B (zh) 2015-07-22 2015-07-22 一种网络切片的选择方法及系统

Publications (1)

Publication Number Publication Date
WO2017012402A1 true WO2017012402A1 (zh) 2017-01-26

Family

ID=57833611

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/082240 WO2017012402A1 (zh) 2015-07-22 2016-05-16 一种网络切片的选择方法及系统

Country Status (5)

Country Link
US (1) US20190021047A1 (zh)
EP (1) EP3327992B1 (zh)
CN (1) CN106375987B (zh)
ES (1) ES2760078T3 (zh)
WO (1) WO2017012402A1 (zh)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018137637A1 (zh) * 2017-01-26 2018-08-02 华为技术有限公司 一种接入目标小区的方法以及设备
US10129108B2 (en) 2015-11-13 2018-11-13 Huawei Technologies Co., Ltd. System and methods for network management and orchestration for network slicing
CN108810903A (zh) * 2017-05-04 2018-11-13 中国移动通信有限公司研究院 一种数据传输配置及数据传输方法和装置
US10278108B2 (en) 2017-07-17 2019-04-30 At&T Intellectual Property I, L.P. Method and apparatus for coordinating wireless resources in a communication network
US10327193B2 (en) 2017-07-17 2019-06-18 At&T Intellectual Property I, L.P. Method and apparatus for directing wireless resources in a communication network
EP3528519A4 (en) * 2017-02-27 2019-08-21 Huawei Technologies Co., Ltd. NETWORK LAYER PROCESS AND DEVICE
US10397840B2 (en) 2016-11-15 2019-08-27 At&T Intellectual Property I, L.P. Method and apparatus for communication device handover
CN110337829A (zh) * 2017-05-08 2019-10-15 株式会社Ntt都科摩 通信控制方法及通信系统
KR20190117747A (ko) * 2017-04-01 2019-10-16 후아웨이 테크놀러지 컴퍼니 리미티드 통신 방법, 코어 네트워크 디바이스 및 액세스 네트워크 디바이스
US10498666B2 (en) 2017-05-01 2019-12-03 At&T Intellectual Property I, L.P. Systems and methods for allocating end device reources to a network slice
EP3592016A4 (en) * 2017-03-21 2020-02-19 Huawei Technologies Co., Ltd. METHOD AND DEVICE FOR SELECTING A CORE NETWORK DEVICE
CN110915265A (zh) * 2017-08-14 2020-03-24 株式会社Ntt都科摩 网络接入方法及通信系统
JP2020515153A (ja) * 2017-03-17 2020-05-21 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． コアネットワーク制御プレーンデバイス選択方法および装置
RU2731121C1 (ru) * 2017-06-19 2020-08-31 Хуавей Текнолоджиз Ко., Лтд. Способ регистрации, способ установки сеанса, оконечное устройство и объект функции управления доступом и мобильностью
CN111698734A (zh) * 2019-03-11 2020-09-22 中国移动通信有限公司研究院 一种非公有网络的接入方法、终端和基站
EP3580964A4 (en) * 2017-02-09 2020-12-09 T-Mobile USA, Inc. NETWORK TRENCH SELECTION IN WIRELESS TELECOMMUNICATION NETWORKS
US11419045B2 (en) 2017-08-23 2022-08-16 Nokia Solutions And Networks Oy Automatic evaluation and management of slice reselection experiences
US12120112B2 (en) 2018-06-11 2024-10-15 Huawei Technologies Co., Ltd. Address information obtaining method and apparatus

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106550410B (zh) * 2015-09-17 2020-07-07 华为技术有限公司 一种通信控制方法和控制器、用户设备、相关装置
US10588074B2 (en) * 2015-09-18 2020-03-10 Huawei Technologies Co., Ltd. Core network selection method, apparatus and system
WO2017061111A1 (en) * 2015-10-09 2017-04-13 Nec Corporation Dedicated core networks (dcn) selection
CN106572517B (zh) * 2015-10-09 2018-12-18 中国移动通信集团公司 网络切片的处理方法、接入网络的选择方法及装置
US11632714B2 (en) * 2015-10-15 2023-04-18 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and method for attaching user equipment to a mobile communications network
EP3378254B1 (en) * 2015-11-18 2019-10-02 Telefonaktiebolaget LM Ericsson (PUBL) Network node, radio access node and methods performed therein
US10536946B2 (en) * 2015-12-08 2020-01-14 Huawei Technologies Co., Ltd. Method and system for performing network slicing in a radio access network
US10772101B2 (en) 2015-12-08 2020-09-08 Huawei Technologies Co., Ltd. Systems and methods for determining air interface configuration
WO2017123277A1 (en) * 2016-01-15 2017-07-20 Intel IP Corporation Network slice selection in network systems
EP3412048B1 (en) * 2016-02-05 2019-09-25 Telefonaktiebolaget LM Ericsson (publ) Network nodes and methods performed therein for enabling communication in a communication network
WO2017147751A1 (zh) * 2016-02-29 2017-09-08 华为技术有限公司 一种确定控制面节点的方法、装置及无线通信系统
FR3048574A1 (fr) 2016-03-07 2017-09-08 Orange Selection d'une instanciation de tranche de reseau pour la transmission de paquets montants
KR102078189B1 (ko) * 2016-03-11 2020-02-20 주식회사 케이티 무선 액세스 망 슬라이싱 제어 장치와 그 장치가 무선 베어러 전송을 제어하는 방법
CN107197486A (zh) * 2016-03-15 2017-09-22 中兴通讯股份有限公司 一种驻留目标选择方法、传输方法及装置
JP2019096918A (ja) * 2016-04-05 2019-06-20 シャープ株式会社 端末装置、基地局装置、ＭＭＥ（Ｍｏｂｉｌｉｔｙ Ｍａｎａｇｅｍｅｎｔ Ｅｎｔｉｔｙ）および通信制御方法
US11089542B2 (en) * 2016-04-05 2021-08-10 Sharp Kabushiki Kaisha Terminal apparatus, base station apparatus, mobility management entity (MME), and communication control method
CN107347205B (zh) * 2016-05-05 2019-08-23 电信科学技术研究院 一种网络切片选择方法、装置及系统
CN107347202B (zh) * 2016-05-06 2019-12-13 电信科学技术研究院 一种终端在网络切片架构下的初始接入方法及装置
US10652809B2 (en) * 2016-05-15 2020-05-12 Lg Electronics Inc. Method and apparatus for supporting network slicing selection and authorization for new radio access technology
WO2017206183A1 (zh) * 2016-06-03 2017-12-07 华为技术有限公司 一种网络切片的确定方法、装置及系统
CN112165725B (zh) * 2016-06-15 2024-03-19 华为技术有限公司 报文处理的方法及设备
CN107659419B (zh) * 2016-07-25 2021-01-01 华为技术有限公司 网络切片方法和系统
US10470149B2 (en) * 2016-07-27 2019-11-05 Lg Electronics Inc. Method and apparatus for performing MM attach and service request procedure for network slice based new radio access technology in wireless communication system
CN107666666B (zh) * 2016-07-27 2022-11-08 中兴通讯股份有限公司 密钥的衍生方法及装置
CN108370538B (zh) * 2016-08-22 2020-10-09 华为技术有限公司 一种选择网络切片的方法及装置
JPWO2018037893A1 (ja) * 2016-08-23 2019-06-20 日本電気株式会社 ポータルサーバを管理する方法、装置およびシステム
WO2018059689A1 (en) 2016-09-29 2018-04-05 Telefonaktiebolaget Lm Ericsson (Publ) Quality of service differentiation between network slices
CN109474967B (zh) * 2017-01-25 2019-11-19 华为技术有限公司 通信方法和通信装置
CN107071799B (zh) * 2017-02-16 2019-12-06 北京小米移动软件有限公司 网络切片配置方法及装置、无线接入网ran节点和终端
CN108696905B (zh) * 2017-02-20 2023-06-13 中兴通讯股份有限公司 一种无线资源的管理方法及装置
WO2018148962A1 (zh) * 2017-02-20 2018-08-23 华为技术有限公司 通信方法、用户设备和核心网络控制面设备
US20180242198A1 (en) * 2017-02-23 2018-08-23 Electronics And Telecommunications Research Institute Mobile communication network system and control method thereof
JP6855838B2 (ja) * 2017-02-27 2021-04-07 ソニー株式会社 端末装置、方法及びプログラム
US11737014B2 (en) 2017-03-01 2023-08-22 Huawei Technologies Co., Ltd. Service processing method and device
US10764785B2 (en) * 2017-03-07 2020-09-01 Htc Corporation Device and method of handling network slice information
CN106982458B (zh) * 2017-03-09 2019-12-17 华为技术有限公司 一种网络切片的选择方法及装置
EP3593589B1 (en) * 2017-03-10 2023-09-20 Hughes Network Systems, LLC Network sharing by multiple service providers in a 3gpp framework using single core network
CN106937363A (zh) * 2017-03-16 2017-07-07 国家计算机网络与信息安全管理中心 一种终端接入网络的方法及装置
CN110463245B (zh) * 2017-03-17 2022-04-22 华为技术有限公司 用于基于切片的网络中的无线接入网络(ran)配置的技术
US10638367B2 (en) * 2017-03-17 2020-04-28 Qualcomm Incorporated Prioritizing incompatible network slices
CN108632063B (zh) * 2017-03-20 2021-01-05 华为技术有限公司 管理网络切片实例的方法、装置和系统
US10736028B2 (en) * 2017-03-20 2020-08-04 Qualcomm Incorporated Network service configuration and selection using network slices
US11223947B2 (en) * 2017-03-21 2022-01-11 Nokia Technologies Oy Enhanced registration procedure in a mobile system supporting network slicing
WO2018170922A1 (zh) * 2017-03-24 2018-09-27 华为技术有限公司 一种配置网络切片的方法、装置和系统
WO2018176220A1 (zh) * 2017-03-28 2018-10-04 华为技术有限公司 网络接入方法、终端、接入网及核心网
EP4376495A3 (en) * 2017-03-31 2024-09-04 ZTE Corporation Method and apparatus for session management function selection
CN108924884B (zh) * 2017-04-04 2021-02-23 华为技术有限公司 通信方法及通信设备
CN113411784B (zh) * 2017-04-27 2022-01-11 三星电子株式会社 网络可切片区域信息获取方法
EP3402232B1 (en) * 2017-05-08 2019-11-06 NTT DoCoMo, Inc. Method for associating network functions with a network slice instance of a mobile radio communication network
EP3622754B1 (en) * 2017-05-08 2023-02-15 Motorola Mobility LLC Methods and apparatuses for reconfiguring a data connection
US10327270B2 (en) * 2017-05-08 2019-06-18 Htc Corporation Device and method for handling a feature
CN110603851B (zh) * 2017-05-09 2020-12-01 华为技术有限公司 一种基于切片的通信方法和设备
WO2018219352A1 (en) * 2017-06-02 2018-12-06 Fg Innovation Ip Company Limited Methods, devices, and systems for service-driven mobility management
US10292073B2 (en) * 2017-06-13 2019-05-14 Nokia Solutions And Networks Oy Enhancement for X2/Xn to support RAN slicing
WO2018228674A1 (en) 2017-06-13 2018-12-20 Huawei Technologies Co., Ltd. Method for using context awareness for the coordination of management and mobile network service operation planes
CN109104726A (zh) * 2017-06-20 2018-12-28 上海中兴软件有限责任公司 网络切片的认证方法及相应装置、系统和介质
CN110495197B (zh) * 2017-06-28 2021-01-15 华为技术有限公司 管理网络切片的方法和装置
CN109218046B (zh) * 2017-06-30 2021-09-14 中国移动通信有限公司研究院 网络切片的管理方法及系统和存储介质
CN107249192B (zh) * 2017-06-30 2020-06-09 广东工业大学 一种共享网络切片的状态监控方法及装置
CN110832909B (zh) * 2017-07-26 2021-02-09 华为技术有限公司 一种网络注册的方法、相关设备及系统
EP3648512B1 (en) 2017-08-04 2023-10-18 Huawei Technologies Co., Ltd. Method for processing session in wireless communication, and terminal device
CN109391648B (zh) * 2017-08-04 2020-12-22 华为技术有限公司 一种应用与网络切片的关联方法、装置和通信系统
CN109548137B (zh) * 2017-08-11 2022-04-22 华为技术有限公司 会话信息管理方法和装置
CN109168180B (zh) 2017-08-11 2020-03-10 华为技术有限公司 通信方法及源基站、目标基站、核心网设备、终端设备
WO2019034601A1 (en) * 2017-08-15 2019-02-21 Telefonaktiebolaget Lm Ericsson (Publ) DEFINITION OF SERVICE AREA AT NETWORK CUTTING
CN109429295B (zh) * 2017-08-31 2021-11-23 中兴通讯股份有限公司 一种选择amf的方法、amf、系统及存储介质
US10856230B2 (en) 2017-09-13 2020-12-01 Apple Inc. Low power measurements mode
CN109560952B (zh) * 2017-09-27 2021-04-09 华为技术有限公司 一种网络切片管理方法及设备
CN109586938B (zh) * 2017-09-29 2020-10-23 华为技术有限公司 实例业务拓扑的生成方法及装置
US10834668B2 (en) * 2017-11-14 2020-11-10 Ofinno, Llc AMF selection for isolated network slice
CN109803279B (zh) * 2017-11-16 2021-06-25 大唐移动通信设备有限公司 一种切片管理方法、基站及终端
CN114125817A (zh) 2017-12-13 2022-03-01 华为技术有限公司 用户策略的获取
CN110035461B (zh) * 2018-01-12 2020-12-15 华为技术有限公司 通信方法、接入网设备和终端设备
EP3737037B1 (en) * 2018-02-07 2022-07-06 Huawei Technologies Co., Ltd. Communication method and communication apparatus
JP7325432B2 (ja) * 2018-03-20 2023-08-14 マイクロソフト テクノロジー ライセンシング，エルエルシー ネットワークスライシングのシステム及び方法
WO2019183885A1 (zh) * 2018-03-29 2019-10-03 Oppo广东移动通信有限公司 网元间切换的方法、用户设备、网元及计算机存储介质
CN110417563A (zh) * 2018-04-26 2019-11-05 中兴通讯股份有限公司 一种网络切片接入的方法、装置和系统
CN110461027B (zh) * 2018-05-07 2020-11-17 华为技术有限公司 一种网络切片选择方法及装置
CN108667956B (zh) * 2018-05-17 2021-03-23 东莞理工学院 一种5g系统中的ip地址池管理方法
CN110557750B (zh) * 2018-06-04 2021-08-03 华为技术有限公司 信息传输方法、网关设备、核心网设备以及存储介质
CN110661630B (zh) * 2018-06-28 2023-04-07 中国电信股份有限公司 网络切片实例的分配方法、装置和系统
CN110677884B (zh) * 2018-07-03 2022-03-01 中国电信股份有限公司 终端、网络接入方法、装置、系统和计算机可读存储介质
JP2021535683A (ja) 2018-08-29 2021-12-16 オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd. 通信方法及びデバイス
CN110876174B (zh) * 2018-08-31 2021-05-18 华为技术有限公司 网络切片选择方法、设备及系统
CN113507417B (zh) 2018-10-27 2023-05-09 华为技术有限公司 报文处理方法、相关设备及计算机存储介质
CN112956253B (zh) * 2018-11-06 2022-10-04 中兴通讯股份有限公司 用于将用户设备附着到网络切片的方法和装置
US11272552B2 (en) 2018-12-20 2022-03-08 Samsung Electronics Co., Ltd. Network connection method and apparatus
CN112153719B (zh) * 2019-06-28 2022-08-02 中国电信股份有限公司 通信方法、装置、系统及计算机可读存储介质
US11026149B1 (en) * 2020-01-31 2021-06-01 Dish Wireless Llc Systems and methods for reducing slice access failures
US11924163B2 (en) * 2020-04-08 2024-03-05 Intel Corporation Initiation of domain name system (DNS) resolution in 5G systems
EP4149073A4 (en) 2020-05-07 2023-09-13 Samsung Electronics Co., Ltd. ELECTRONIC DEVICE FOR FORMING A NETWORK LAYER AND DATA SESSION AND METHOD FOR OPERATING THEREOF
EP4189930A1 (en) * 2020-08-03 2023-06-07 Nokia Technologies Oy Apparatus, method and computer program
CN114598996B (zh) * 2020-12-04 2023-04-07 中国电信股份有限公司 系统消息广播方法和设备、网络驻留方法和用户终端
EP4037361A1 (en) * 2021-01-29 2022-08-03 Adaptive Mobile Security Limited System and method for securing a communication network
US11910299B2 (en) * 2021-10-05 2024-02-20 Cisco Technology, Inc. Providing slice attribute information to user equipment in a mobile network environment
CN114268949A (zh) * 2021-11-16 2022-04-01 浙江大学 一种5g局域网的网络搭建方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130007232A1 (en) * 2011-06-28 2013-01-03 Wei Wang Methods and apparatus to improve security of a virtual private mobile network
CN103067245A (zh) * 2012-12-28 2013-04-24 中兴通讯股份有限公司 一种用于网络虚拟化的流表空间隔离装置及方法
CN103595647A (zh) * 2013-11-27 2014-02-19 北京邮电大学 一种基于OpenFlow的SDN虚拟化平台下行信令处理方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140198687A1 (en) * 2009-01-28 2014-07-17 Headwater Partners I Llc Wireless end-user device providing ambient or sponsored services
US20130017853A1 (en) * 2011-07-12 2013-01-17 Telefonaktiebolaget L M Ericsson (Publ) Wholesale Network User Identity Mapping in a Mobile Network
US8868710B2 (en) * 2011-11-18 2014-10-21 Amazon Technologies, Inc. Virtual network interface objects
CN103188650B (zh) * 2011-12-28 2016-03-23 电信科学技术研究院 网关选择方法和设备
EP2795842B1 (en) * 2012-01-26 2016-08-24 Siemens Aktiengesellschaft Controller and method for controlling communication services for applications on a physical network
CN104685935B (zh) * 2012-09-27 2019-01-15 交互数字专利控股公司 虚拟化网络中的端到端架构、api框架、发现以及接入
GB2507545B (en) * 2012-11-02 2016-03-23 Broadcom Corp Apparatus and method
US9967727B2 (en) * 2013-02-22 2018-05-08 Intel IP Corporation Systems and methods for access network selection and traffic routing
WO2014128253A1 (en) * 2013-02-22 2014-08-28 Adaptive Mobile Security Limited System and method for embedded mobile (em)/machine to machine (m2m) security, pattern detection, mitigation
US9326122B2 (en) * 2013-08-08 2016-04-26 Intel IP Corporation User equipment and method for packet based device-to-device (D2D) discovery in an LTE network
US10033595B2 (en) * 2013-08-27 2018-07-24 Futurewei Technologies, Inc. System and method for mobile network function virtualization
US9642077B2 (en) * 2013-10-23 2017-05-02 Cisco Technology, Inc. Node selection in virtual evolved packet core
US9924406B2 (en) * 2015-03-02 2018-03-20 Verizon Patent And Licensing Inc. Blended data transmission network for machine type communications
EP3281454B1 (en) * 2015-04-08 2019-03-27 Telefonaktiebolaget LM Ericsson (publ) Methods and network nodes for network partition preservation at inter-access handovers
US10111163B2 (en) * 2015-06-01 2018-10-23 Huawei Technologies Co., Ltd. System and method for virtualized functions in control and data planes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130007232A1 (en) * 2011-06-28 2013-01-03 Wei Wang Methods and apparatus to improve security of a virtual private mobile network
CN103067245A (zh) * 2012-12-28 2013-04-24 中兴通讯股份有限公司 一种用于网络虚拟化的流表空间隔离装置及方法
CN103595647A (zh) * 2013-11-27 2014-02-19 北京邮电大学 一种基于OpenFlow的SDN虚拟化平台下行信令处理方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ERICSSON.: "NETWORK FUNCTIONS VIRTUALIZATION AND SOFTWARE MANAGEMENT", ERICSSON WHITE PAPER, 31 December 2014 (2014-12-31), pages 4, and 5, XP055303485 *
See also references of EP3327992A4 *

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10129108B2 (en) 2015-11-13 2018-11-13 Huawei Technologies Co., Ltd. System and methods for network management and orchestration for network slicing
US11284314B2 (en) 2016-11-15 2022-03-22 At&T Intellectual Property I, L.P. Method and apparatus for communication device handover
US10397840B2 (en) 2016-11-15 2019-08-27 At&T Intellectual Property I, L.P. Method and apparatus for communication device handover
US11849385B2 (en) 2017-01-26 2023-12-19 Huawei Technologies Co., Ltd. Target cell access method and device
US10945194B2 (en) 2017-01-26 2021-03-09 Huawei Technologies Co., Ltd. Target cell access method and device
WO2018137637A1 (zh) * 2017-01-26 2018-08-02 华为技术有限公司 一种接入目标小区的方法以及设备
EP3580964A4 (en) * 2017-02-09 2020-12-09 T-Mobile USA, Inc. NETWORK TRENCH SELECTION IN WIRELESS TELECOMMUNICATION NETWORKS
US11368904B2 (en) 2017-02-27 2022-06-21 Huawei Technologies Co., Ltd. Network slice selection method and apparatus
EP3528519A4 (en) * 2017-02-27 2019-08-21 Huawei Technologies Co., Ltd. NETWORK LAYER PROCESS AND DEVICE
JP2020515153A (ja) * 2017-03-17 2020-05-21 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． コアネットワーク制御プレーンデバイス選択方法および装置
EP3592016A4 (en) * 2017-03-21 2020-02-19 Huawei Technologies Co., Ltd. METHOD AND DEVICE FOR SELECTING A CORE NETWORK DEVICE
EP3592093A4 (en) * 2017-04-01 2020-03-11 Huawei Technologies Co., Ltd. COMMUNICATION METHOD, CORE NETWORK DEVICE AND ACCESS NETWORK DEVICE
KR102284317B1 (ko) * 2017-04-01 2021-07-30 후아웨이 테크놀러지 컴퍼니 리미티드 통신 방법, 코어 네트워크 디바이스 및 액세스 네트워크 디바이스
JP2020516184A (ja) * 2017-04-01 2020-05-28 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 通信方法、コアネットワークデバイスおよびアクセスネットワークデバイス
US11310801B2 (en) 2017-04-01 2022-04-19 Huawei Technologies Co., Ltd. Communication method, core network device, and access network device
KR20190117747A (ko) * 2017-04-01 2019-10-16 후아웨이 테크놀러지 컴퍼니 리미티드 통신 방법, 코어 네트워크 디바이스 및 액세스 네트워크 디바이스
US10498666B2 (en) 2017-05-01 2019-12-03 At&T Intellectual Property I, L.P. Systems and methods for allocating end device reources to a network slice
US10826843B2 (en) 2017-05-01 2020-11-03 At&T Intellectual Property I, L.P. Systems and methods for allocating end device resources to a network slice
CN108810903B (zh) * 2017-05-04 2020-08-18 中国移动通信有限公司研究院 一种数据传输配置及数据传输方法和装置
CN108810903A (zh) * 2017-05-04 2018-11-13 中国移动通信有限公司研究院 一种数据传输配置及数据传输方法和装置
CN110337829B (zh) * 2017-05-08 2022-06-03 株式会社Ntt都科摩 通信控制方法及通信系统
CN110337829A (zh) * 2017-05-08 2019-10-15 株式会社Ntt都科摩 通信控制方法及通信系统
RU2731121C1 (ru) * 2017-06-19 2020-08-31 Хуавей Текнолоджиз Ко., Лтд. Способ регистрации, способ установки сеанса, оконечное устройство и объект функции управления доступом и мобильностью
US10973082B2 (en) 2017-06-19 2021-04-06 Huawei Technologies Co., Ltd. Registration method, session establishment method, terminal, and AMF entity
US11523465B2 (en) 2017-06-19 2022-12-06 Huawei Technologies Co., Ltd. Registration method, session establishment method, terminal, and AMF entity
US11071037B2 (en) 2017-07-17 2021-07-20 At&T Intellectual Property I, L.P. Method and apparatus for directing wireless resources in a communication network
US11218941B2 (en) 2017-07-17 2022-01-04 At&T Intellectual Property I, L.P. Method and apparatus for coordinating wireless resources in a communication network
US10327193B2 (en) 2017-07-17 2019-06-18 At&T Intellectual Property I, L.P. Method and apparatus for directing wireless resources in a communication network
US10278108B2 (en) 2017-07-17 2019-04-30 At&T Intellectual Property I, L.P. Method and apparatus for coordinating wireless resources in a communication network
CN110915265B (zh) * 2017-08-14 2022-05-31 株式会社Ntt都科摩 网络接入方法及通信系统
CN110915265A (zh) * 2017-08-14 2020-03-24 株式会社Ntt都科摩 网络接入方法及通信系统
US11419045B2 (en) 2017-08-23 2022-08-16 Nokia Solutions And Networks Oy Automatic evaluation and management of slice reselection experiences
US12120112B2 (en) 2018-06-11 2024-10-15 Huawei Technologies Co., Ltd. Address information obtaining method and apparatus
CN111698734A (zh) * 2019-03-11 2020-09-22 中国移动通信有限公司研究院 一种非公有网络的接入方法、终端和基站
CN111698734B (zh) * 2019-03-11 2022-10-21 中国移动通信有限公司研究院 一种非公有网络的接入方法、终端和基站

Also Published As

Publication number Publication date
ES2760078T3 (es) 2020-05-13
US20190021047A1 (en) 2019-01-17
EP3327992B1 (en) 2019-09-18
CN106375987B (zh) 2021-08-20
CN106375987A (zh) 2017-02-01
EP3327992A1 (en) 2018-05-30
EP3327992A4 (en) 2018-05-30

Similar Documents

Publication Publication Date Title
WO2017012402A1 (zh) 一种网络切片的选择方法及系统
CN111436160B (zh) 一种局域网通信方法、装置及系统
EP3668054B1 (en) Data transmission method, device and system
US10313997B2 (en) User equipment registration method for network slice selection and network controller and network communication system using the same
US11070633B2 (en) Pre-association discovery of services
CN112437456B (zh) 一种非公共网络中的通信方法及设备
WO2021197347A1 (zh) 通信系统、方法及装置
WO2021052107A1 (zh) 网络切片选择的方法、装置、系统和存储介质
CN110049485A (zh) 一种配置ue的策略的方法、装置和系统
WO2018045983A1 (zh) 信息处理方法、装置以及网络系统
EP4055860B1 (en) Open access in neutral host network environments
EP4319232A1 (en) Communication method and apparatus
WO2021066807A1 (en) Non-3gpp interworking function (n3iwf) selection for stand-alone non-public networks (snpn)
US20220263879A1 (en) Multicast session establishment method and network device
JP2023024400A (ja) オンボーディングプロセスのためのユーザ端末と通信ネットワークとの間の認証
US20240040005A1 (en) Context transfer method and communication apparatus
CN116782196A (zh) 归属地网元确定方法、装置、计算机设备和存储介质
WO2023045472A1 (zh) 一种通信方法、装置及系统
WO2017049919A1 (zh) 用户签约数据获取方法、s4sgsn设备
WO2022027529A1 (zh) 一种切片认证的方法及装置
WO2016173296A1 (zh) 一种移动网络分级架构的接入方法及系统
CN117098206A (zh) 终端归属点确定方法、装置、通信设备和存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16827093

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE