WO2017193553A1 - 网络切片的接入控制方法及装置、终端化小区和sdn控制器 - Google Patents

网络切片的接入控制方法及装置、终端化小区和sdn控制器 Download PDF

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Publication number
WO2017193553A1
WO2017193553A1 PCT/CN2016/103980 CN2016103980W WO2017193553A1 WO 2017193553 A1 WO2017193553 A1 WO 2017193553A1 CN 2016103980 W CN2016103980 W CN 2016103980W WO 2017193553 A1 WO2017193553 A1 WO 2017193553A1
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Prior art keywords
access
network slice
network
configuration information
information
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English (en)
French (fr)
Inventor
雷艺学
郑倩
张云飞
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a network slice access control method, a network slice access control device, a terminalized cell, and an SDN controller.
  • Network slicing mainly creates multiple independent dedicated virtual sub-networks in the same infrastructure to meet the needs of different services.
  • Network slicing is better able to support different services, including mobile broadband, the IoT smart grid, and remote e-health and public safety services.
  • Network slicing involves not only the core network but also the wireless access network.
  • 3GPP is discussing the scheme of core network slicing and access network slicing, but does not consider the support of T-SC (Terminal Small Cell), how the terminals converged by T-SC can access different
  • T-SC Terminal Small Cell
  • the invention is based on at least one of the above technical problems, and proposes a new network slice access control scheme, so that the terminalized cell can access the corresponding network slice in advance to provide the user equipment of the access terminalized cell.
  • the corresponding network service realizes the support of the terminalized cell to the network slice.
  • an access control method for a network slice is provided, which is applicable to a terminalized cell, including: acquiring information of a network slice that at least one user equipment needs to access, to obtain at least one network. And the information of the at least one network slice is sent to an SDN (Software Defined Network) controller; and the at least one network slice is accessed based on the control of the SDN controller.
  • SDN Software Defined Network
  • the terminalized cell obtains information of at least one network slice that the user equipment needs to access, and sends the information of the at least one network slice to the SDN controller to access based on the control of the SDN controller.
  • the at least one network slice enables the terminalized cell to access the network slice that the user equipment that is being aggregated needs to access, thereby ensuring that the terminalized cell provides the corresponding network service to the user equipment that is aggregated by the terminalized cell, and implements the terminalized cell.
  • the foregoing at least one user equipment is a user equipment that is aggregated by the terminalized cells, and the user equipments implement interaction with the network side by using the terminalized cells.
  • Manner 1 Receive the indication information sent by the at least one user equipment, where the indication information is used to indicate information about a network slice that the at least one user equipment needs to access.
  • Manner 2 The application layer information of the at least one user equipment is obtained, and information about the network slice that the at least one user equipment needs to access is determined according to the application layer information.
  • the first mode is that the user equipment informs the terminalized cell of the information of the network slice that the terminal needs to access by using the clear indication information.
  • the second method is that the terminalized cell acquires the at least one user according to the application layer information of the at least one user equipment. Information about the network slice that the device needs to access. In practical applications, either of the above two methods may be used, or both of the above methods may be used at the same time.
  • the accessing the at least one network slice based on the control of the SDN controller includes:
  • the configuration information of each network slice in the access layer (AS Layer), the configuration information on the access layer (Above AS Layer), and the configuration information on the access network (Radio Access Network (RAN) side)
  • the configuration information of the core network (Core Net, CN for short) entity is unique, that is, different from the configuration information of other network slices, which is caused by the different services provided by each network slice.
  • an access control method for a network slice is also provided, which is applicable to an SDN controller, and includes: receiving information of at least one network slice sent by a terminalized cell; determining that the terminalized cell can When accessing any one of the at least one network slice, controlling the terminalized cell to access the any network slice.
  • the SDN controller receives the information of the at least one network slice sent by the terminalized cell to control the terminalized cell to access the network slice that it can access, so that the terminalized cell can access the aggregated cell.
  • the network slice that the user equipment needs to access can ensure that the terminalized cell provides the corresponding network service to the user equipment that is aggregated by the terminal device, and implements the support of the terminalized cell to the network slice.
  • the at least one network slice sent by the terminalized cell may be a network slice that needs to be accessed by the user equipment that is aggregated by the terminalized cell.
  • the controlling the terminalized cell to access the any network slice includes:
  • the configuration information of each network slice in the access layer, the configuration information on the access layer, the configuration information on the access network side, and the configuration information in the core network entity are all unique, that is, Unlike the configuration information of other network slices, this is caused by the different services provided by each network slice.
  • the configuration information of the core network entity specified by any of the network slices enables the Control Plane and the User Plane of the any network slice to be in the core network.
  • the configuration information above includes: a policy on the access layer, a routing, a PDN connection level configuration, and a cell configuration parameter;
  • Any configuration information of the access layer in the access layer includes: radio level configuration (Radio level configuration) and PCI (Physical Cell Identifier) parameters, and/or D2D (Device to Device) )parameter.
  • the radio layer configuration and the PCI parameter enable the terminalized cell to establish a connection with other user equipments (remote UEs) in a Cell manner; the D2D parameters enable the terminalized cell to establish a connection with other user equipments in a D2D manner.
  • an access control apparatus for a network slice which is applicable to a terminalized cell, and includes: an acquiring unit, configured to acquire information of a network slice that at least one user equipment needs to access, to obtain at least Information of a network slice; a transmitting unit configured to transmit information of the at least one network slice to an SDN controller; and a processing unit configured to access the at least one network slice based on control of the SDN controller.
  • the terminalized cell obtains information of at least one network slice that the user equipment needs to access, and sends the information of the at least one network slice to the SDN controller to access based on the control of the SDN controller.
  • the at least one network slice enables the terminalized cell to access the network slice that the user equipment that is being aggregated needs to access, thereby ensuring that the terminalized cell provides the corresponding network service to the user equipment that is aggregated by the terminalized cell, and implements the terminalized cell.
  • the foregoing at least one user equipment is a user equipment that is aggregated by the terminalized cells, and the user equipments implement interaction with the network side by using the terminalized cells.
  • the acquiring unit is configured to: receive the indication information sent by the at least one user equipment, where the indication information is used to indicate information about a network slice that the at least one user equipment needs to access, And/or acquiring application layer information of the at least one user equipment, and determining, according to the application layer information, information about a network slice that the at least one user equipment needs to access.
  • the acquiring unit acquires the information of the at least one network slice mainly in two ways: the first method is that the user equipment informs the terminalized cell of the information of the network slice that the terminalized cell needs to access through the clear indication information; The information about the network slice that the at least one user equipment needs to access is obtained by the terminalized cell according to the application layer information of the at least one user equipment. In practical applications, either of the above two methods may be used, or both of the above methods may be used at the same time.
  • the processing unit includes: a receiving unit, configured to receive a configuration of each network slice in the at least one network slice sent by the SDN controller on an access layer And receiving, by the base station, configuration information of each network slice sent by the base station at the access layer; and the access unit is configured to access according to the configuration information on the access layer and the configuration information of the access layer.
  • a receiving unit configured to receive a configuration of each network slice in the at least one network slice sent by the SDN controller on an access layer
  • the access unit is configured to access according to the configuration information on the access layer and the configuration information of the access layer.
  • the configuration information of each network slice in the access layer, the configuration information on the access layer, the configuration information on the access network side, and the configuration information in the core network entity are unique, that is, slice with other networks.
  • the configuration information is different, which is caused by the different services provided by each network slice.
  • a network slice access control apparatus which is applicable to an SDN controller, and includes: a receiving unit, configured to receive information of at least one network slice sent by the terminalized cell; and a control unit, And configured to control the terminalized cell to access the any network slice when determining that the terminalized cell can access any one of the at least one network slice.
  • the SDN controller receives the information of the at least one network slice sent by the terminalized cell to control the terminalized cell to access the network slice that it can access, so that the terminalized cell can access the aggregated cell.
  • the network slice that the user equipment needs to access can ensure that the terminalized cell provides the corresponding network service to the user equipment that is aggregated by the terminal device, and implements the support of the terminalized cell to the network slice.
  • the at least one network slice sent by the terminalized cell may be a network slice that needs to be accessed by the user equipment that is aggregated by the terminalized cell.
  • control unit is specifically configured to: send configuration information of the core network entity that is specific to any network slice to the core network entity, and send the any network slice to the base station. And configuring configuration information on the access network side, and transmitting, to the terminalized cell, configuration information on the access layer that is specific to any of the network slices, to control the terminalized cell accessing the a network slice, where the base station parses the configuration information of the access network side after receiving the configuration information of the access network side, and obtains the access layer of the any network slice exclusive Configuration information, and sending configuration information of the access layer to the terminalized cell.
  • the configuration information of each network slice in the access layer, the configuration information on the access layer, the configuration information on the access network side, and the configuration information in the core network entity are all unique, that is, Unlike the configuration information of other network slices, this is caused by the different services provided by each network slice.
  • the configuration information of the core network entity that is specific to any of the network slices enables the control plane and the user plane of the any network slice to be run on the core network;
  • a network slice-specific configuration information on the access network side enables wireless resource management of the any network slice on the access network side;
  • configuration information of any of the network slices exclusive on the access layer includes: a policy, a routing, a connection configuration of other public data networks, and a cell configuration parameter on the access layer;
  • the configuration information of the access layer at the access layer includes: a radio layer configuration and a PCI parameter. , and / or D2D parameters.
  • the radio layer configuration and the PCI parameter enable the terminalized cell to establish a connection with other user equipments (remote UEs) in a Cell manner; the D2D parameters enable the terminalized cell to establish a connection with other user equipments in a D2D manner.
  • a terminalized cell comprising: the access control device of the network slice according to the above third aspect.
  • an SDN controller comprising: the access control device for the network slice according to the above fourth aspect.
  • the terminalized cell can access the corresponding network slice in advance to provide corresponding network service to the user equipment of the access terminalized cell, and realize the support of the terminalized cell to the network slice.
  • FIG. 1 is a schematic diagram of a scenario in which a terminalized cell accesses a network slice according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a network slice access procedure based on a terminalized cell according to an embodiment of the present invention
  • FIG. 3 is a schematic flow chart showing an access control method of a network slice according to a first embodiment of the present invention
  • FIG. 4 is a schematic block diagram of an access control apparatus for a network slice according to a first embodiment of the present invention
  • FIG. 5 shows a schematic block diagram of a terminalized cell according to an embodiment of the present invention
  • FIG. 6 is a schematic flow chart showing an access control method of a network slice according to a second embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of an access control apparatus for a network slice according to a second embodiment of the present invention.
  • FIG. 8 shows a schematic block diagram of an SDN controller in accordance with an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a terminalized cell according to an embodiment of the present invention.
  • FIG. 10 shows a schematic structural diagram of an SDN controller according to an embodiment of the present invention.
  • the technical solution of the present invention is mainly to enable the T-SC to support a 5G network splicing scheme.
  • 10 shown in FIG. 1 is a terminalized cell
  • 11 and 12 are a remote UE (User Equipment), and the remote UE 11 and the remote UE 12 and the terminalized cell 10 are configured.
  • 13 shown in FIG. 1 is a base station
  • 14 is an SDN controller
  • 15 is a core network entity.
  • the remote UE 11 and the remote UE 12 may need to access eMBB (enhanced Mobil Broadband), mMTC (massive machine type communication), and uMTC (Ultra-reliable MTC).
  • eMBB enhanced Mobil Broadband
  • mMTC massive machine type communication
  • uMTC Ultra-reliable MTC
  • the core idea of the access method of the network slice proposed by the present invention is to enable the T-SC to access different network slices to provide different network services to different remote UEs.
  • the T-SC as a network entity, obtains configuration information of each slicing from the SDN controller.
  • the SDN controller configures the T-SC according to service requirements, so that the T-SC can access the required network slice, and these network slices need to reflect the network that the T-SC itself and the remote UE to which it is aggregated need to access.
  • the configuration information of each network slice can be obtained from the SDN controller during the T-SC initialization startup process.
  • Step S202 The remote UE reports information of the network slice to be accessed to the T-SC.
  • the remote UE may be one or multiple.
  • the implementation of the reporting function of the remote UE can be implemented by using explicit signal indication or implicitly by application layer information.
  • Step S204 The T-SC maintains information about network slices reported by all the aggregated remote UEs.
  • step S206 the T-SC reports the information of all the network slices maintained to the SDN controller in time.
  • Step S208 the SDN controller confirms whether the T-SC can access the corresponding network slice, and after confirming a network slice that the T-SC can access, performs step S210a, step S210b, and step S210c.
  • Step S210a the SDN controller sends the configuration information on the RAN side dedicated to the network slice to the base station.
  • Step S210b the SDN controller sends the configuration information on the access layer dedicated to the network slice to the T-SC.
  • Step S210c The SDN controller sends the configuration information of the core network entity dedicated to the network slice to the core network entity.
  • the implementation of this step requires a corresponding logical interface between the SDN controller and the CN entity to support.
  • the step S210a, the step S210b, and the step S210c may be performed at the same time, or may be performed at different times.
  • Step S210 The base station parses and processes the configuration information on the RAN side dedicated to the network slice sent by the SDN controller, and obtains the configuration information of the access layer dedicated to the network slice, and then sends the configuration information to the T-SC.
  • the step S210d may be performed immediately after the base station receives the configuration information on the RAN side dedicated to the network slice.
  • Step S212 the T-SC provides the remote UE with the network service corresponding to the newly accessed network slice.
  • Each network slice has unique configuration information, which is described in detail below:
  • the configuration information of each network slice on the RAN side can implement radio resource management of each network slice on the access network side.
  • the configuration information of each network slice in the CN entity enables the control plane and user plane of each network slice to operate in the core network.
  • the configuration information can implement the function equivalent to the control plane of the PDN-GW (Packet Data Network Gateway) for each network slice, and implement the function equivalent to the HSS (Home Subscriber Server).
  • the function equivalent to the MME (Mobility Management Entity) is implemented.
  • the configuration information of each network slice in the T-SC includes configuration information at the access layer (AS layer) and configuration information on the access layer (Above AS layer).
  • the configuration information of each network slice on the access layer includes: a policy (Policy), a routing (Routing), a PDN connection level configuration, and a cell on the access layer.
  • Policy policy
  • Routing routing
  • PDN connection level configuration a cell on the access layer.
  • Configuration parameters cell configuration parameters
  • the configuration information of each network slice in the access layer includes: radio level configuration (Radio level configuration) and PCI (Physical Cell Identifier) parameters, and/or D2D (Device to Device) parameters. .
  • radio level configuration Radio level configuration
  • PCI Physical Cell Identifier
  • D2D Device to Device
  • FIG. 3 is a schematic flow chart showing an access control method of a network slice according to a first embodiment of the present invention, which is applicable to a terminalized cell.
  • an access control method for a network slice according to a first embodiment of the present invention includes:
  • Step S302 Acquire information of at least one network slice that the user equipment needs to access, to obtain information of at least one network slice.
  • step S302 mainly has the following two methods:
  • Manner 1 Receive the indication information sent by the at least one user equipment, where the indication information is used to indicate information about a network slice that the at least one user equipment needs to access.
  • Manner 2 The application layer information of the at least one user equipment is obtained, and information about the network slice that the at least one user equipment needs to access is determined according to the application layer information.
  • the first method is that the user equipment informs the terminalized cell of the information of the network slice that the terminal needs to access through the clear indication information.
  • the second method is that the terminalized cell acquires the at least one user according to the application layer information of the at least one user equipment. Information about the network slice that the device needs to access. In practical applications, either of the above two methods may be used, or both of the above methods may be used at the same time.
  • Step S304 transmitting information of the at least one network slice to an SDN controller.
  • Step S306 accessing the at least one network slice based on control of the SDN controller.
  • step S306 specifically includes: receiving configuration information of each network slice in the at least one network slice sent by the SDN controller on an access layer, and receiving a location sent by the base station Configuring each network slice at the access layer; accessing each of the network slices based on configuration information on the access layer and configuration information of the access layer; wherein each of the networks The configuration information of the slice at the access layer is obtained by parsing configuration information of the network slice sent by the base station to the SDN controller on the access network side.
  • the configuration information of each network slice in the access layer (AS Layer), the configuration information on the access layer (Above AS Layer), and the configuration information on the access network (Radio Access Network (RAN) side)
  • the configuration information of the core network (Core Net, CN for short) entity is unique, that is, different from the configuration information of other network slices, which is caused by the different services provided by each network slice.
  • the terminalized cell obtains information of at least one network slice that the user equipment needs to access, and sends the information of the at least one network slice to the SDN controller to control based on the SDN. Controlling, accessing the at least one network slice, so that the terminalized cell can access the network slice that the user equipment that is being aggregated needs to access, thereby ensuring that the terminalized cell provides the corresponding network service to the user equipment that is aggregated by the terminal.
  • the terminalized cell supports the network slice.
  • the foregoing at least one user equipment is a user equipment that is aggregated by the terminalized cells, and the user equipments implement interaction with the network side by using the terminalized cells.
  • FIG. 4 is a schematic block diagram of an access control apparatus for a network slice according to a first embodiment of the present invention, the access control apparatus being adapted for a terminalized cell.
  • the access control apparatus 400 of the network slice according to the first embodiment of the present invention includes an acquisition unit 402, a transmission unit 404, and a processing unit 406.
  • the obtaining unit 402 is configured to acquire information of at least one network slice that the user equipment needs to access to obtain information of at least one network slice, and the sending unit 404 is configured to send information of the at least one network slice to the SDN controller; Unit 406 is configured to access the at least one network slice based on control of the SDN controller.
  • the acquiring unit 402 is specifically configured to: receive the indication information sent by the at least one user equipment, where the indication information is used to indicate information about a network slice that the at least one user equipment needs to access, and And acquiring the application layer information of the at least one user equipment, and determining information about the network slice that the at least one user equipment needs to access according to the application layer information.
  • the obtaining, by the acquiring unit 402, the information of the at least one network slice is mainly in two ways: the first method is that the user equipment informs the terminalized cell of the network slice information that the terminalized cell needs to access through clear indication information; The information of the network slice that the at least one user equipment needs to access is obtained by the terminalized cell according to the application layer information of the at least one user equipment. In practical applications, either of the above two methods may be used, or both of the above methods may be used at the same time.
  • the processing unit 406 includes: a receiving unit 4062, configured to receive configuration information of each network slice in the at least one network slice sent by the SDN controller on an access layer, And receiving, by the base station, configuration information of each network slice sent by the base station at the access layer; the access unit 4064 is configured to be based on the configuration information on the access layer and the configuration information of the access layer, and accessing the Each network slice is configured, wherein the configuration information of each network slice in the access layer is configured by the base station to configure configuration information of each network slice sent by the SDN controller on the access network side. owned.
  • the configuration information of each network slice in the access layer, the configuration information on the access layer, the configuration information on the access network side, and the configuration information in the core network entity are unique, that is, slice with other networks.
  • the configuration information is different, which is caused by the different services provided by each network slice.
  • the present invention Based on the access control device 400 of the network slice described in FIG. 4, as shown in FIG. 5, the present invention also proposes a terminalized cell 500 having the access control device 400.
  • FIG. 9 is a schematic structural diagram of a terminalized cell according to an embodiment of the present invention.
  • the terminalized cell 500 includes at least one processor 501, such as a CPU, at least one receiver 503, at least one memory 504, at least one transmitter 505, and at least one communication bus 502.
  • the communication bus 502 is used to implement connection communication between these components.
  • the receiver 503 and the transmitter 505 may be wired transmission ports, or may be wireless devices, for example, including antenna devices for performing data communication with other devices.
  • the memory 504 may be a high speed RAM memory or a non-transitory memory.
  • the processor 501 can execute an operating system of the terminalized cell 500 and various installed application programs, program codes, and the like.
  • each unit described above includes the acquiring unit 402, the sending unit 404, and the like.
  • Program code is stored in the memory 504, and the processor 501 can invoke program code stored in the memory 504 via the communication bus 502 to perform related functions.
  • the various units e.g., the acquisition unit 402, the transmission unit 404, etc.
  • FIG. 4 are program codes stored in the memory 504, and are executed by the processor 501, thereby implementing The function of each unit.
  • the memory 504 stores a plurality of instructions that are executed by the processor 501 to implement an access control method for a network slice. Specifically, performing, by the processor 501, the multiple instructions includes: acquiring information of a network slice that at least one user equipment needs to access, to obtain information of at least one network slice; and information of the at least one network slice Sending to the SDN controller; accessing the at least one network slice based on control of the SDN controller.
  • the obtaining information of the network slice that the at least one user equipment needs to access includes: receiving the indication information sent by the at least one user equipment, where the indication information is set to indicate the at least one user equipment The information of the network slice that needs to be accessed; and/or the application layer information of the at least one user equipment, and the information of the network slice that the at least one user equipment needs to access is determined according to the application layer information.
  • the accessing the at least one network slice based on the control of the SDN controller comprises: receiving each network slice in the at least one network slice sent by the SDN controller Configuration information on the access layer, and receiving configuration information of each network slice sent by the base station at the access layer; based on configuration information on the access layer and configuration information of the access layer, Accessing each of the network slices; wherein, the configuration information of each network slice at the access layer is configured by the base station to the SDN controller on the access network side The information is parsed.
  • FIG. 6 is a schematic flow chart showing an access control method of a network slice according to a second embodiment of the present invention, which is applicable to an SDN controller.
  • the access control method for a network slice according to the second embodiment of the present invention includes:
  • Step S602 receiving information of at least one network slice sent by the terminalized cell.
  • Step S604 when determining that the terminalized cell can access any one of the at least one network slice, controlling the terminalized cell to access the any network slice.
  • step S604 the step of controlling the terminalized cell to access the any network slice includes:
  • the configuration information of each network slice in the access layer, the configuration information on the access layer, the configuration information on the access network side, and the configuration information in the core network entity are all unique, that is, Unlike the configuration information of other network slices, this is caused by the different services provided by each network slice.
  • the configuration information of the core network entity specified by any of the network slices enables the Control Plane and the User Plane of the any network slice to be in the core network.
  • the configuration information above includes: a policy on the access layer, a routing, a PDN connection level configuration, and a cell configuration parameter;
  • Any configuration information of the access layer in the access layer includes: radio level configuration (Radio level configuration) and PCI (Physical Cell Identifier) parameters, and/or D2D (Device to Device) )parameter.
  • the radio layer configuration and the PCI parameter enable the terminalized cell to establish a connection with other user equipments (remote UEs) in a Cell manner; the D2D parameters enable the terminalized cell to establish a connection with other user equipments in a D2D manner.
  • the SDN controller receives the information of at least one network slice sent by the terminalized cell to control the terminalized cell to access the network slice that it can access, so that the terminalized cell can be connected.
  • the network slice that needs to be accessed by the user equipment that is aggregated by the user equipment can be ensured that the terminalized cell provides the corresponding network service to the user equipment that is aggregated by the terminalized cell, and the terminalized cell supports the network slice.
  • the at least one network slice sent by the terminalized cell may be a network slice that needs to be accessed by the user equipment that is aggregated by the terminalized cell.
  • FIG. 7 shows a schematic block diagram of an access control apparatus for a network slice according to a second embodiment of the present invention, the access control apparatus being adapted for a terminalized cell.
  • the access control apparatus 700 of the network slice according to the second embodiment of the present invention includes: a receiving unit 702 and a control unit 704.
  • the receiving unit 702 is configured to receive information of at least one network slice sent by the terminalized cell; and the control unit 704 is configured to: when determining that the terminalized cell can access any one of the at least one network slice, The terminalized cell accesses any of the network slices.
  • control unit 702 is specifically configured to: send configuration information of the core network entity specific to the core network entity to the core network entity, and send the any network slice to the base station.
  • Configuration information on the access network side and transmitting configuration information on the access layer that is specific to any of the network slices to the terminalized cell, to control the terminalized cell access to any of the a network slice, where the base station parses the configuration information of the access network side after receiving the configuration information of the access network side, and obtains any network slice exclusive at the access layer.
  • the configuration information is sent, and the configuration information of the access layer is sent to the terminalized cell.
  • the configuration information of each network slice in the access layer, the configuration information on the access layer, the configuration information on the access network side, and the configuration information in the core network entity are all unique, that is, Unlike the configuration information of other network slices, this is caused by the different services provided by each network slice.
  • the configuration information of the core network entity that is exclusive to any of the network slices enables the control plane and the user plane of the any network slice to be run on the core network; any of the network slices
  • the configuration information on the access network side of the access network can implement the radio resource management of the any network slice on the access network side;
  • the configuration information of the any network slice exclusive on the access layer includes: Policy, routing, connection configuration of other public data networks, and cell configuration parameters on the access layer;
  • configuration information of the access layer at the access layer includes: wireless layer configuration and PCI parameters, and / Or D2D parameters.
  • the radio layer configuration and the PCI parameter enable the terminalized cell to establish a connection with other user equipments (remote UEs) in a Cell manner; the D2D parameters enable the terminalized cell to establish a connection with other user equipments in a D2D manner.
  • the present invention also proposes an SDN controller 800 having the access control device 700.
  • FIG. 10 is a schematic structural diagram of an SDN controller according to an embodiment of the present invention.
  • the SDN controller 800 includes at least one processor 801, such as a CPU, at least one memory 804, and at least one communication bus 802.
  • the communication bus 802 is used to implement connection communication between these components.
  • the memory 804 may be a high speed RAM memory or a non-transitory memory.
  • the processor 801 can execute an operating system of the SDN controller 800 and various installed application programs, program codes, and the like.
  • each unit described above includes the receiving unit 702, the control unit 704, and the like.
  • Program code is stored in the memory 804, and the processor 801 can call the program code stored in the memory 804 via the communication bus 802 to perform related functions.
  • the respective units e.g., the receiving unit 702, the control unit 704, etc.
  • FIG. 7 are program codes stored in the memory 804, and are executed by the processor 801, thereby implementing The function of each unit.
  • the memory 804 stores a plurality of instructions that are executed by the processor 801 to implement an access control method for network slicing. Specifically, performing, by the processor 801, the multiple instructions includes: receiving information of at least one network slice sent by the terminalized cell 500; determining that the terminalized cell 500 can access the at least one network slice In any of the network slices, the terminalized cell 500 is controlled to access the any network slice.
  • controlling the terminalized cell 500 to access the any network slice specifically includes: sending, to the core network entity, configuration information of the core network entity that is specific to any network slice, And transmitting, to the base station, the configuration information of the any network slice that is specific to the access network, and transmitting, to the terminalized cell 500, the configuration information of the any network slice that is specific to the access layer.
  • the configuration information of the core network entity that is specific to any of the network slices enables the control plane and the user plane of the any network slice to be run on the core network;
  • the configuration information on the access network side can implement the radio resource management of the any network slice on the access network side;
  • the configuration information of the any network slice exclusive on the access layer includes: Policy, routing, connection configuration of other public data networks, and cell configuration parameters above the layer;
  • any configuration information of the access layer at the access layer includes: wireless layer configuration and PCI parameters, and/or D2D parameters.
  • the present invention provides a new network slice access control scheme, so that the terminalized cell can access the corresponding network slice in advance to access the terminalized cell.
  • the user equipment provides corresponding network services, and implements support for network segmentation by the terminalized cell.

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Abstract

本发明提供了一种网络切片的接入控制方法、接入控制装置、终端化小区和SDN控制器，其中，适用于终端化小区的接入控制方法，包括：获取至少一个用户设备需要访问的网络切片的信息，以得到至少一个网络切片的信息；将所述至少一个网络切片的信息发送至SDN控制器；基于所述SDN控制器的控制，接入所述至少一个网络切片。本发明的技术方案使得终端化小区能够事先接入相应的网络切片，以向接入终端化小区的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。

Description

网络切片的接入控制方法及装置、终端化小区和SDN控制器
本申请要求于2016年5月13日提交中国专利局，申请号为201610322379.7、发明名称为“网络切片的接入控制方法及装置、终端化小区和SDN控制器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体而言，涉及一种网络切片的接入控制方法、一种网络切片的接入控制装置、一种终端化小区和一种SDN控制器。
背景技术
随着通信技术的发展，5G网络架构中引入了切片（Slicing）的概念，网络切片主要是在同一基础架构中创建多个独立的专属虚拟子网络，以满足不同服务的需求。网络切片能够更好地支持不同的业务，包括移动宽带，物联网智能电网以及远程电子医疗和公共安全业务等。
网络切片不仅涉及到核心网，而且也涉及到无线接入网络。目前，3GPP正在讨论核心网切片和接入网切片的方案，但是并未考虑对T-SC（Terminal Small Cell，终端化小区）的支持，被T-SC汇聚的终端如何能够接入到不同的网路切片中尚没有相关的技术方案。
发明内容
本发明正是基于上述技术问题至少之一，提出了一种新的网络切片的接入控制方案，使得终端化小区能够事先接入相应的网络切片，以向接入终端化小区的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。
有鉴于此，根据本发明的第一方面，提出了一种网络切片的接入控制方法，适用于终端化小区，包括：获取至少一个用户设备需要访问的网络切片的信息，以得到至少一个网络切片的信息；将所述至少一个网络切片的信息发送至SDN（Software Defined Network，软件定义网络）控制器；基于所述SDN控制器的控制，接入所述至少一个网络切片。
在该技术方案中，终端化小区通过获取至少一个用户设备需要访问的至少一个网络切片的信息，并将该至少一个网络切片的信息发送至SDN控制器，以基于SDN控制器的控制，接入上述至少一个网络切片，使得终端化小区能够接入到被其汇聚的用户设备需要访问的网络切片，进而可以保证终端化小区向被其汇聚的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。其中，上述的至少一个用户设备是被终端化小区汇聚的用户设备，这些用户设备通过终端化小区实现与网络侧的交互。
其中，上述的获取至少一个用户设备需要访问的网络切片的信息的方式有如下两种：
方式一：接收所述至少一个用户设备发送的指示信息，所述指示信息用于指示所述至少一个用户设备需要访问的网络切片的信息。
方式二：获取所述至少一个用户设备的应用层信息，并根据所述应用层信息确定所述至少一个用户设备需要访问的网络切片的信息。
上述的方式一是由用户设备通过明确的指示信息来告知终端化小区其所需要访问的网络切片的信息；方式二是由终端化小区根据至少一个用户设备的应用层信息来获取这至少一个用户设备需要访问的网络切片的信息。在实际应用中，可以采用上述两种方式中的任一种方式，或同时采用上述两种方式。
在上述任一技术方案中，优选地，所述基于所述SDN控制器的控制，接入所述至少一个网络切片，具体包括：
接收所述SDN控制器发送的所述至少一个网络切片中的每个网络切片在接入层之上的配置信息，并接收基站发送的所述每个网络切片在接入层的配置信息；基于所述接入层之上的配置信息和所述接入层的配置信息，接入所述每个网络切片；其中，所述每个网络切片在接入层的配置信息是由所述基站对所述SDN控制器发送的所述每个网络切片在接入网侧的配置信息进行解析得到的。
其中，每个网络切片在接入层（AS Layer）的配置信息、在接入层之上（Above AS Layer）的配置信息、在接入网（Radio Access Network，简称RAN）侧的配置信息以及在核心网（Core Net，简称CN）实体的配置信息均具有唯一性，即与其它网络切片的配置信息不同，这是由于每个网络切片提供的服务不同而引起的。
根据本发明的第二方面，还提出了一种网络切片的接入控制方法，适用于SDN控制器，包括：接收终端化小区发送的至少一个网络切片的信息；在确定所述终端化小区能够接入所述至少一个网络切片中的任一网络切片时，控制所述终端化小区接入所述任一网络切片。
在该技术方案中，SDN控制器通过接收终端化小区发送的至少一个网络切片的信息，以控制终端化小区接入其能够接入的网络切片，使得终端化小区能够接入到被其汇聚的用户设备需要访问的网络切片，进而可以保证终端化小区向被其汇聚的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。其中，终端化小区发送的至少一个网络切片可以是被终端化小区汇聚的用户设备需要访问的网络切片。
在上述技术方案中，优选地，所述控制所述终端化小区接入所述任一网络切片，具体包括：
向核心网实体发送所述任一网络切片专有的在核心网实体的配置信息，并向基站发送所述任一网络切片专有的在接入网侧的配置信息，以及向所述终端化小区发送所述任一网络切片专有的在接入层之上的配置信息，以控制所述终端化小区接入所述任一网络切片；其中，所述基站在接收到所述接入网侧的配置信息后，对所述接入网侧的配置信息进行解析，得到所述任一网络切片专有的在接入层的配置信息，并将所述接入层的配置信息发送至所述终端化小区。
在该技术方案中，每个网络切片在接入层的配置信息、在接入层之上的配置信息、在接入网侧的配置信息以及在核心网实体的配置信息均具有唯一性，即与其它网络切片的配置信息不同，这是由于每个网络切片提供的服务不同而引起的。
作为本发明的一个实施例，所述任一网络切片专有的在核心网实体的配置信息能够使所述任一网络切片的控制面（Control Plane）和用户面（User Plane）在核心网得以运行；所述任一网络切片专有的在接入网侧的配置信息能够实现所述任一网络切片在接入网侧的无线资源管理；所述任一网络切片专有的在接入层之上的配置信息包括：在接入层之上的策略（Policy）、路由选择（Routing）、其它公用数据网络的连接配置（PDN connection level configuration）和小区配置参数（cell configuration parameters）；所述任一网络切片专有的在接入层的配置信息包括：无线层配置（Radio level configuration）和PCI（Physical Cell Identifier，物理小区标识）参数，和/或D2D（Device to Device，终端直连通信）参数。
其中，无线层配置和PCI参数使得终端化小区以Cell的方式与其它用户设备（远端UE）建立连接；D2D参数使得终端化小区以D2D的方式与其它用户设备建立连接。
根据本发明的第三方面，还提出了一种网络切片的接入控制装置，适用于终端化小区，包括：获取单元，设置为获取至少一个用户设备需要访问的网络切片的信息，以得到至少一个网络切片的信息；发送单元，设置为将所述至少一个网络切片的信息发送至SDN控制器；处理单元，设置为基于所述SDN控制器的控制，接入所述至少一个网络切片。
在该技术方案中，终端化小区通过获取至少一个用户设备需要访问的至少一个网络切片的信息，并将该至少一个网络切片的信息发送至SDN控制器，以基于SDN控制器的控制，接入上述至少一个网络切片，使得终端化小区能够接入到被其汇聚的用户设备需要访问的网络切片，进而可以保证终端化小区向被其汇聚的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。其中，上述的至少一个用户设备是被终端化小区汇聚的用户设备，这些用户设备通过终端化小区实现与网络侧的交互。
在上述技术方案中，优选地，所述获取单元具体设置为：接收所述至少一个用户设备发送的指示信息，所述指示信息用于指示所述至少一个用户设备需要访问的网络切片的信息，和/或获取所述至少一个用户设备的应用层信息，并根据所述应用层信息确定所述至少一个用户设备需要访问的网络切片的信息。
在该技术方案中，获取单元获取至少一个网络切片的信息主要是通过两种方式：方式一是由用户设备通过明确的指示信息来告知终端化小区其所需要访问的网络切片的信息；方式二是由终端化小区根据至少一个用户设备的应用层信息来获取这至少一个用户设备需要访问的网络切片的信息。在实际应用中，可以采用上述两种方式中的任一种方式，或同时采用上述两种方式。
在上述任一技术方案中，优选地，所述处理单元包括：接收单元，设置为接收所述SDN控制器发送的所述至少一个网络切片中的每个网络切片在接入层之上的配置信息，并接收基站发送的所述每个网络切片在接入层的配置信息；接入单元，设置为基于所述接入层之上的配置信息和所述接入层的配置信息，接入所述每个网络切片；其中，所述每个网络切片在接入层的配置信息是由所述基站对所述SDN控制器发送的所述每个网络切片在接入网侧的配置信息进行解析得到的。
其中，每个网络切片在接入层的配置信息、在接入层之上的配置信息、在接入网侧的配置信息以及在核心网实体的配置信息均具有唯一性，即与其它网络切片的配置信息不同，这是由于每个网络切片提供的服务不同而引起的。
根据本发明的第四方面，还提出了一种网络切片的接入控制装置，适用于SDN控制器，包括：接收单元，设置为接收终端化小区发送的至少一个网络切片的信息；控制单元，设置为在确定所述终端化小区能够接入所述至少一个网络切片中的任一网络切片时，控制所述终端化小区接入所述任一网络切片。
在该技术方案中，SDN控制器通过接收终端化小区发送的至少一个网络切片的信息，以控制终端化小区接入其能够接入的网络切片，使得终端化小区能够接入到被其汇聚的用户设备需要访问的网络切片，进而可以保证终端化小区向被其汇聚的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。其中，终端化小区发送的至少一个网络切片可以是被终端化小区汇聚的用户设备需要访问的网络切片。
在上述技术方案中，优选地，所述控制单元具体设置为：向核心网实体发送所述任一网络切片专有的在核心网实体的配置信息，并向基站发送所述任一网络切片专有的在接入网侧的配置信息，以及向所述终端化小区发送所述任一网络切片专有的在接入层之上的配置信息，以控制所述终端化小区接入所述任一网络切片；其中，所述基站在接收到所述接入网侧的配置信息后，对所述接入网侧的配置信息进行解析，得到所述任一网络切片专有的在接入层的配置信息，并将所述接入层的配置信息发送至所述终端化小区。
在该技术方案中，每个网络切片在接入层的配置信息、在接入层之上的配置信息、在接入网侧的配置信息以及在核心网实体的配置信息均具有唯一性，即与其它网络切片的配置信息不同，这是由于每个网络切片提供的服务不同而引起的。
在上述任一技术方案中，优选地，所述任一网络切片专有的在核心网实体的配置信息能够使所述任一网络切片的控制面和用户面在核心网得以运行；所述任一网络切片专有的在接入网侧的配置信息能够实现所述任一网络切片在接入网侧的无线资源管理；所述任一网络切片专有的在接入层之上的配置信息包括：在接入层之上的策略、路由选择、其它公用数据网络的连接配置和小区配置参数；所述任一网络切片专有的在接入层的配置信息包括：无线层配置和PCI参数，和/或D2D参数。
其中，无线层配置和PCI参数使得终端化小区以Cell的方式与其它用户设备（远端UE）建立连接；D2D参数使得终端化小区以D2D的方式与其它用户设备建立连接。
根据本发明的第五方面，还提出了一种终端化小区，包括：如上述第三方面所述的网络切片的接入控制装置。
根据本发明的第六方面，还提出了一种SDN控制器，包括：如上述第四方面所述的网络切片的接入控制装置。
通过以上技术方案，使得终端化小区能够事先接入相应的网络切片，以向接入终端化小区的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。
 附图说明
图1示出了根据本发明的实施例的终端化小区接入网络切片的场景示意图；
图2示出了根据本发明的实施例的基于终端化小区的网络切片接入过程示意图；
图3示出了根据本发明的第一个实施例的网络切片的接入控制方法的示意流程图；
图4示出了根据本发明的第一个实施例的网络切片的接入控制装置的示意框图；
图5示出了根据本发明的实施例的终端化小区的示意框图；
图6示出了根据本发明的第二个实施例的网络切片的接入控制方法的示意流程图；
图7示出了根据本发明的第二个实施例的网络切片的接入控制装置的示意框图；
图8示出了根据本发明的实施例的SDN控制器的示意框图；
图9示出了根据本发明的实施例的终端化小区的结构示意图；
图10示出了根据本发明的实施例的SDN控制器的结构示意图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
本发明的技术方案主要是使得T-SC能够支持5G的网络切片方案。具体如图1所示，其中，图1中所示的10为终端化小区，11和12为远端UE（User Equipment，用户设备），远端UE 11和远端UE 12与终端化小区10之间通过Uu接口或PC5接口连接，图1中所示的13为基站，14为SDN控制器，15为核心网实体。
由于远端UE 11和远端UE 12可能需要接入eMBB（enhanced Mobil Broadband，增强的移动宽带网络）、mMTC（massive Machine Type Communication，大规模机器类通讯）、uMTC（Ultra-reliable MTC，超可靠的机器类通讯）中的一种或多种，因此终端化小区10必须要支持网络切片，如果终端化小区10不能支持网络切片的方案，那么显然存在应用场景方面的缺陷。
基于此，本发明提出的网络切片的接入方法的核心思想是使T-SC接入不同的网络切片，以向不同的远端UE提供不同的网络服务。
其中，T-SC作为一个网络实体，从SDN控制器中获取每个网络切片（per slicing）的配置信息。
SDN控制器根据业务需求对T-SC进行配置，使得T-SC能够接入到所需要的网络切片中，这些网络切片需要反应T-SC自身及其所汇聚的远端UE需要接入的网络切片的并集。每个网络切片的配置信息可以在T-SC初始化启动过程中从SDN控制器中一并获取。
具体的交互过程如图2所示，包括：
步骤S202，远端UE向T-SC汇报需要访问的网络切片的信息。其中，远端UE可以是一个，也可以是多个。远端UE的汇报功能的实现既可以采用明确的信号指示，也可以隐式地通过应用层信息来实现。
步骤S204，T-SC维护所有被汇聚的远端UE汇报的网络切片的信息。
步骤S206，T-SC将维护的所有网络切片的信息及时上报至SDN控制器。
步骤S208，SDN控制器确认T-SC是否能够接入相应的网络切片，并在确认T-SC可以接入的一个网络切片后，执行步骤S210a、步骤S210b和步骤S210c。
步骤S210a，SDN控制器向基站发送该网络切片专用的在RAN侧的配置信息。
步骤S210b，SDN控制器向T-SC发送该网络切片专用的在接入层之上的配置信息。
步骤S210c，SDN控制器向核心网实体发送该网络切片专用的在核心网实体的配置信息。该步骤的实现需要SDN控制器与CN实体之间定义相应的逻辑接口来支持。
其中，步骤S210a、步骤S210b和步骤S210c可以是同时执行的，也可以是不同时执行的。
步骤S210d，基站对SDN控制器发送的该网络切片专用的在RAN侧的配置信息进行解析和处理后，得到该网络切片专用的在接入层的配置信息，然后发送至T-SC。其中，步骤S210d可以在基站接收到该网络切片专用的在RAN侧的配置信息之后立即执行。
步骤S212，T-SC向远端UE提供与新接入的网络切片相对应的网络服务。
其中，每个网络切片都具有唯一的配置信息，以下具体进行说明：
1、如果RAN侧支持网络切片，那么每个网络切片在RAN侧的配置信息能够实现每个网络切片在接入网侧的无线资源管理。
2、每个网络切片在CN实体的配置信息能够使每个网络切片的控制面和用户面在核心网得以运行。
具体地，如配置信息能够为每个网络切片实现等同于PDN-GW（Packet Data Network Gateway，数据网络网关）的控制面的功能、实现等同于HSS（Home Subscriber Server，归属签约用户服务器）的功能、实现等同于MME（Mobility Management Entity，移动性管理实体）的功能。
3、每个网络切片在T-SC的配置信息包括了在接入层（AS layer）的配置信息和在接入层之上（Above AS layer）的配置信息。
其中，每个网络切片在接入层之上的配置信息包括：在接入层之上的策略（Policy）、路由选择（Routing）、其它公用数据网络的连接配置（PDN connection level configuration）和小区配置参数（cell configuration parameters）等。
每个网络切片在接入层的配置信息包括：无线层配置（Radio level configuration）和PCI（Physical Cell Identifier，物理小区标识）参数，和/或D2D（Device to Device，终端直连通信）参数等。
为了进一步说明本发明的技术方案，以下结合图3至图10对终端化小区和SDN控制器的功能实现作进一步说明。
图3示出了根据本发明的第一个实施例的网络切片的接入控制方法的示意流程图，该接入控制方法适用于终端化小区。
如图3所示，根据本发明的第一个实施例的网络切片的接入控制方法，包括：
步骤S302，获取至少一个用户设备需要访问的网络切片的信息，以得到至少一个网络切片的信息。
步骤S302的实现主要有如下两种方式：
方式一：接收所述至少一个用户设备发送的指示信息，所述指示信息用于指示所述至少一个用户设备需要访问的网络切片的信息。
方式二：获取所述至少一个用户设备的应用层信息，并根据所述应用层信息确定所述至少一个用户设备需要访问的网络切片的信息。
其中，方式一是由用户设备通过明确的指示信息来告知终端化小区其所需要访问的网络切片的信息；方式二是由终端化小区根据至少一个用户设备的应用层信息来获取这至少一个用户设备需要访问的网络切片的信息。在实际应用中，可以采用上述两种方式中的任一种方式，或同时采用上述两种方式。
步骤S304，将所述至少一个网络切片的信息发送至SDN控制器。
步骤S306，基于所述SDN控制器的控制，接入所述至少一个网络切片。
在本发明的一个实施例中，步骤S306具体包括：接收所述SDN控制器发送的所述至少一个网络切片中的每个网络切片在接入层之上的配置信息，并接收基站发送的所述每个网络切片在接入层的配置信息；基于所述接入层之上的配置信息和所述接入层的配置信息，接入所述每个网络切片；其中，所述每个网络切片在接入层的配置信息是由所述基站对所述SDN控制器发送的所述每个网络切片在接入网侧的配置信息进行解析得到的。
其中，每个网络切片在接入层（AS Layer）的配置信息、在接入层之上（Above AS Layer）的配置信息、在接入网（Radio Access Network，简称RAN）侧的配置信息以及在核心网（Core Net，简称CN）实体的配置信息均具有唯一性，即与其它网络切片的配置信息不同，这是由于每个网络切片提供的服务不同而引起的。
在图3所示的接入控制方法中，终端化小区通过获取至少一个用户设备需要访问的至少一个网络切片的信息，并将该至少一个网络切片的信息发送至SDN控制器，以基于SDN控制器的控制，接入上述至少一个网络切片，使得终端化小区能够接入到被其汇聚的用户设备需要访问的网络切片，进而可以保证终端化小区向被其汇聚的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。其中，上述的至少一个用户设备是被终端化小区汇聚的用户设备，这些用户设备通过终端化小区实现与网络侧的交互。
图4示出了根据本发明的第一个实施例的网络切片的接入控制装置的示意框图，该接入控制装置适用于终端化小区。
如图4所示，根据本发明的第一个实施例的网络切片的接入控制装置400，包括：获取单元402、发送单元404和处理单元406。
其中，获取单元402设置为获取至少一个用户设备需要访问的网络切片的信息，以得到至少一个网络切片的信息；发送单元404设置为将所述至少一个网络切片的信息发送至SDN控制器；处理单元406设置为基于所述SDN控制器的控制，接入所述至少一个网络切片。
在本发明的一个实施例中，获取单元402具体设置为：接收所述至少一个用户设备发送的指示信息，所述指示信息用于指示所述至少一个用户设备需要访问的网络切片的信息，和/或获取所述至少一个用户设备的应用层信息，并根据所述应用层信息确定所述至少一个用户设备需要访问的网络切片的信息。
具体来说，获取单元402获取至少一个网络切片的信息主要是通过两种方式：方式一是由用户设备通过明确的指示信息来告知终端化小区其所需要访问的网络切片的信息；方式二是由终端化小区根据至少一个用户设备的应用层信息来获取这至少一个用户设备需要访问的网络切片的信息。在实际应用中，可以采用上述两种方式中的任一种方式，或同时采用上述两种方式。
在本发明的一个实施例中，处理单元406包括：接收单元4062，设置为接收所述SDN控制器发送的所述至少一个网络切片中的每个网络切片在接入层之上的配置信息，并接收基站发送的所述每个网络切片在接入层的配置信息；接入单元4064，设置为基于所述接入层之上的配置信息和所述接入层的配置信息，接入所述每个网络切片；其中，所述每个网络切片在接入层的配置信息是由所述基站对所述SDN控制器发送的所述每个网络切片在接入网侧的配置信息进行解析得到的。
其中，每个网络切片在接入层的配置信息、在接入层之上的配置信息、在接入网侧的配置信息以及在核心网实体的配置信息均具有唯一性，即与其它网络切片的配置信息不同，这是由于每个网络切片提供的服务不同而引起的。
基于图4所述的网络切片的接入控制装置400，如图5所示，本发明还提出了一种具有该接入控制装置400的终端化小区500。
在进一步的实施例中，结合图4及图5，如图9所示，是本发明实施例提供的一种终端化小区的结构示意图。所述的终端化小区500包括：至少一个处理器501，例如CPU，至少一个接收器503，至少一个存储器504，至少一个发送器505，至少一个通信总线502。其中，所述通信总线502用于实现这些组件之间的连接通信。其中，所述接收器503和所述发送器505可以是有线发送端口，也可以为无线设备，例如包括天线装置，用于与其他设备进行数据通信。所述存储器504可以是高速RAM存储器，也可以是非暂态存储器（non-transitory memory）。
所述处理器501可执行所述终端化小区500的操作系统以及安装的各类应用程序、程序代码等，例如，上述的各个单元，包括所述获取单元402、所述发送单元404等。
所述存储器504中存储有程序代码，且所述处理器501可通过通信总线502，调用所述存储器504中存储的程序代码以执行相关的功能。例如，图4中所述的各个单元（例如，所述获取单元402、所述发送单元404等）是存储在所述存储器504中的程序代码，并由所述处理器501所执行，从而实现所述各个单元的功能。
在本发明的一个实施例中，所述存储器504存储多个指令，所述多个指令被所述处理器501所执行以实现网络切片的接入控制方法。具体而言，所述处理器501对所述多个指令的执行包括：获取至少一个用户设备需要访问的网络切片的信息，以得到至少一个网络切片的信息；将所述至少一个网络切片的信息发送至SDN控制器；基于所述SDN控制器的控制，接入所述至少一个网络切片。
在进一步的实施例中，所述获取至少一个用户设备需要访问的网络切片的信息，具体包括：接收所述至少一个用户设备发送的指示信息，所述指示信息设置为指示所述至少一个用户设备需要访问的网络切片的信息；和/或获取所述至少一个用户设备的应用层信息，并根据所述应用层信息确定所述至少一个用户设备需要访问的网络切片的信息。
在进一步的实施例中，所述基于所述SDN控制器的控制，接入所述至少一个网络切片，具体包括：接收所述SDN控制器发送的所述至少一个网络切片中的每个网络切片在接入层之上的配置信息，并接收基站发送的所述每个网络切片在接入层的配置信息；基于所述接入层之上的配置信息和所述接入层的配置信息，接入所述每个网络切片；其中，所述每个网络切片在接入层的配置信息是由所述基站对所述SDN控制器发送的所述每个网络切片在接入网侧的配置信息进行解析得到的。
具体地，所述处理器501对上述指令的具体实现方法可参考图1-3对应实施例中相关步骤的描述，在此不赘述。图6示出了根据本发明的第二个实施例的网络切片的接入控制方法的示意流程图，该接入控制方法适用于SDN控制器。
如图6所示，根据本发明的第二个实施例的网络切片的接入控制方法，包括：
步骤S602，接收终端化小区发送的至少一个网络切片的信息。
步骤S604，在确定所述终端化小区能够接入所述至少一个网络切片中的任一网络切片时，控制所述终端化小区接入所述任一网络切片。
在步骤S604中，控制所述终端化小区接入所述任一网络切片的步骤，具体包括：
向核心网实体发送所述任一网络切片专有的在核心网实体的配置信息，并向基站发送所述任一网络切片专有的在接入网侧的配置信息，以及向所述终端化小区发送所述任一网络切片专有的在接入层之上的配置信息，以控制所述终端化小区接入所述任一网络切片；其中，所述基站在接收到所述接入网侧的配置信息后，对所述接入网侧的配置信息进行解析，得到所述任一网络切片专有的在接入层的配置信息，并将所述接入层的配置信息发送至所述终端化小区。
在该技术方案中，每个网络切片在接入层的配置信息、在接入层之上的配置信息、在接入网侧的配置信息以及在核心网实体的配置信息均具有唯一性，即与其它网络切片的配置信息不同，这是由于每个网络切片提供的服务不同而引起的。
作为本发明的一个实施例，所述任一网络切片专有的在核心网实体的配置信息能够使所述任一网络切片的控制面（Control Plane）和用户面（User Plane）在核心网得以运行；所述任一网络切片专有的在接入网侧的配置信息能够实现所述任一网络切片在接入网侧的无线资源管理；所述任一网络切片专有的在接入层之上的配置信息包括：在接入层之上的策略（Policy）、路由选择（Routing）、其它公用数据网络的连接配置（PDN connection level configuration）和小区配置参数（cell configuration parameters）；所述任一网络切片专有的在接入层的配置信息包括：无线层配置（Radio level configuration）和PCI（Physical Cell Identifier，物理小区标识）参数，和/或D2D（Device to Device，终端直连通信）参数。
其中，无线层配置和PCI参数使得终端化小区以Cell的方式与其它用户设备（远端UE）建立连接；D2D参数使得终端化小区以D2D的方式与其它用户设备建立连接。
在图6所示的接入控制方法中，SDN控制器通过接收终端化小区发送的至少一个网络切片的信息，以控制终端化小区接入其能够接入的网络切片，使得终端化小区能够接入到被其汇聚的用户设备需要访问的网络切片，进而可以保证终端化小区向被其汇聚的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。其中，终端化小区发送的至少一个网络切片可以是被终端化小区汇聚的用户设备需要访问的网络切片。
图7示出了根据本发明的第二个实施例的网络切片的接入控制装置的示意框图，该接入控制装置适用于终端化小区。
如图7所示，根据本发明的第二个实施例的网络切片的接入控制装置700，包括：接收单元702和控制单元704。
其中，接收单元702设置为接收终端化小区发送的至少一个网络切片的信息；控制单元704设置为在确定所述终端化小区能够接入所述至少一个网络切片中的任一网络切片时，控制所述终端化小区接入所述任一网络切片。
在本发明的一个实施例中，控制单元702具体设置为：向核心网实体发送所述任一网络切片专有的在核心网实体的配置信息，并向基站发送所述任一网络切片专有的在接入网侧的配置信息，以及向所述终端化小区发送所述任一网络切片专有的在接入层之上的配置信息，以控制所述终端化小区接入所述任一网络切片；其中，所述基站在接收到所述接入网侧的配置信息后，对所述接入网侧的配置信息进行解析，得到所述任一网络切片专有的在接入层的配置信息，并将所述接入层的配置信息发送至所述终端化小区。
在该技术方案中，每个网络切片在接入层的配置信息、在接入层之上的配置信息、在接入网侧的配置信息以及在核心网实体的配置信息均具有唯一性，即与其它网络切片的配置信息不同，这是由于每个网络切片提供的服务不同而引起的。
根据本发明的一个实施例，所述任一网络切片专有的在核心网实体的配置信息能够使所述任一网络切片的控制面和用户面在核心网得以运行；所述任一网络切片专有的在接入网侧的配置信息能够实现所述任一网络切片在接入网侧的无线资源管理；所述任一网络切片专有的在接入层之上的配置信息包括：在接入层之上的策略、路由选择、其它公用数据网络的连接配置和小区配置参数；所述任一网络切片专有的在接入层的配置信息包括：无线层配置和PCI参数，和/或D2D参数。
其中，无线层配置和PCI参数使得终端化小区以Cell的方式与其它用户设备（远端UE）建立连接；D2D参数使得终端化小区以D2D的方式与其它用户设备建立连接。
基于图7所述的网络切片的接入控制装置700，如图8所示，本发明还提出了一种具有该接入控制装置700的SDN控制器800。
在进一步的实施例中，结合图7及图8，如图10所示，是本发明实施例提供的一种SDN控制器的结构示意图。所述的SDN控制器800包括：至少一个处理器801，例如CPU，至少一个存储器804以及至少一个通信总线802。其中，所述通信总线802用于实现这些组件之间的连接通信。其中，所述存储器804可以是高速RAM存储器，也可以是非暂态存储器（non-transitory memory）。
所述处理器801可执行所述SDN控制器800的操作系统以及安装的各类应用程序、程序代码等，例如，上述的各个单元，包括所述接收单元702、所述控制单元704等。
所述存储器804中存储有程序代码，且所述处理器801可通过通信总线802，调用所述存储器804中存储的程序代码以执行相关的功能。例如，图7中所述的各个单元（例如，所述接收单元702、所述控制单元704等）是存储在所述存储器804中的程序代码，并由所述处理器801所执行，从而实现所述各个单元的功能。
在本发明的一个实施例中，所述存储器804存储多个指令，所述多个指令被所述处理器801所执行以实现网络切片的接入控制方法。具体而言，所述处理器801对所述多个指令的执行包括：接收终端化小区500发送的至少一个网络切片的信息；在确定所述终端化小区500能够接入所述至少一个网络切片中的任一网络切片时，控制所述终端化小区500接入所述任一网络切片。
在进一步的实施例中，所述控制所述终端化小区500接入所述任一网络切片，具体包括：向核心网实体发送所述任一网络切片专有的在核心网实体的配置信息，并向基站发送所述任一网络切片专有的在接入网侧的配置信息，以及向所述终端化小区500发送所述任一网络切片专有的在接入层之上的配置信息，以控制所述终端化小区500接入所述任一网络切片；其中，所述基站在接收到所述接入网侧的配置信息后，对所述接入网侧的配置信息进行解析，得到所述任一网络切片专有的在接入层的配置信息，并将所述接入层的配置信息发送至所述终端化小区500。
在进一步的实施例中，所述任一网络切片专有的在核心网实体的配置信息能够使所述任一网络切片的控制面和用户面在核心网得以运行；所述任一网络切片专有的在接入网侧的配置信息能够实现所述任一网络切片在接入网侧的无线资源管理；所述任一网络切片专有的在接入层之上的配置信息包括：在接入层之上的策略、路由选择、其它公用数据网络的连接配置和小区配置参数；所述任一网络切片专有的在接入层的配置信息包括：无线层配置和PCI参数，和/或D2D参数。
具体地，所述处理器801对上述指令的具体实现方法可参考图6对应实施例中相关步骤的描述，在此不赘述。
以上结合附图详细说明了本发明的技术方案，本发明提出了一种新的网络切片的接入控制方案，使得终端化小区能够事先接入相应的网络切片，以向接入终端化小区的用户设备提供相应的网络服务，实现了终端化小区对网络切片的支持。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种网络切片的接入控制方法，适用于终端化小区，其特征在于，包括：
    获取至少一个用户设备需要访问的网络切片的信息，以得到至少一个网络切片的信息；
    将所述至少一个网络切片的信息发送至SDN控制器；
    基于所述SDN控制器的控制，接入所述至少一个网络切片。
  2. 根据权利要求1所述的网络切片的接入控制方法，其特征在于，所述获取至少一个用户设备需要访问的网络切片的信息，具体包括：
    接收所述至少一个用户设备发送的指示信息，所述指示信息用于指示所述至少一个用户设备需要访问的网络切片的信息；和/或
    获取所述至少一个用户设备的应用层信息，并根据所述应用层信息确定所述至少一个用户设备需要访问的网络切片的信息。
  3. 根据权利要求1或2所述的网络切片的接入控制方法，其特征在于，所述基于所述SDN控制器的控制，接入所述至少一个网络切片，具体包括：
    接收所述SDN控制器发送的所述至少一个网络切片中的每个网络切片在接入层之上的配置信息，并接收基站发送的所述每个网络切片在接入层的配置信息；
    基于所述接入层之上的配置信息和所述接入层的配置信息，接入所述每个网络切片；
    其中，所述每个网络切片在接入层的配置信息是由所述基站对所述SDN控制器发送的所述每个网络切片在接入网侧的配置信息进行解析得到的。
  4. 一种网络切片的接入控制方法，适用于SDN控制器，其特征在于，包括：
    接收终端化小区发送的至少一个网络切片的信息；
    在确定所述终端化小区能够接入所述至少一个网络切片中的任一网络切片时，控制所述终端化小区接入所述任一网络切片。
  5. 根据权利要求4所述的网络切片的接入控制方法，其特征在于，所述控制所述终端化小区接入所述任一网络切片，具体包括：
    向核心网实体发送所述任一网络切片专有的在核心网实体的配置信息，并向基站发送所述任一网络切片专有的在接入网侧的配置信息，以及向所述终端化小区发送所述任一网络切片专有的在接入层之上的配置信息，以控制所述终端化小区接入所述任一网络切片；
    其中，所述基站在接收到所述接入网侧的配置信息后，对所述接入网侧的配置信息进行解析，得到所述任一网络切片专有的在接入层的配置信息，并将所述接入层的配置信息发送至所述终端化小区。
  6. 根据权利要求5所述的网络切片的接入控制方法，其特征在于：
    所述任一网络切片专有的在核心网实体的配置信息能够使所述任一网络切片的控制面和用户面在核心网得以运行；
    所述任一网络切片专有的在接入网侧的配置信息能够实现所述任一网络切片在接入网侧的无线资源管理；
    所述任一网络切片专有的在接入层之上的配置信息包括：在接入层之上的策略、路由选择、其它公用数据网络的连接配置和小区配置参数；
    所述任一网络切片专有的在接入层的配置信息包括：无线层配置和PCI参数，和/或D2D参数。
  7. 一种网络切片的接入控制装置，适用于终端化小区，其特征在于，包括：
    获取单元，设置为获取至少一个用户设备需要访问的网络切片的信息，以得到至少一个网络切片的信息；
    发送单元，设置为将所述至少一个网络切片的信息发送至SDN控制器；
    处理单元，设置为基于所述SDN控制器的控制，接入所述至少一个网络切片。
  8. 根据权利要求7所述的网络切片的接入控制装置，其特征在于，所述获取单元具体设置为：
    接收所述至少一个用户设备发送的指示信息，所述指示信息用于指示所述至少一个用户设备需要访问的网络切片的信息，和/或
    获取所述至少一个用户设备的应用层信息，并根据所述应用层信息确定所述至少一个用户设备需要访问的网络切片的信息。
  9. 根据权利要求7或8所述的网络切片的接入控制装置，其特征在于，所述处理单元包括：
    接收单元，设置为接收所述SDN控制器发送的所述至少一个网络切片中的每个网络切片在接入层之上的配置信息，并接收基站发送的所述每个网络切片在接入层的配置信息；
    接入单元，设置为基于所述接入层之上的配置信息和所述接入层的配置信息，接入所述每个网络切片；
    其中，所述每个网络切片在接入层的配置信息是由所述基站对所述SDN控制器发送的所述每个网络切片在接入网侧的配置信息进行解析得到的。
  10. 一种网络切片的接入控制装置，适用于SDN控制器，其特征在于，包括：
    接收单元，设置为接收终端化小区发送的至少一个网络切片的信息；
    控制单元，设置为在确定所述终端化小区能够接入所述至少一个网络切片中的任一网络切片时，控制所述终端化小区接入所述任一网络切片。
  11. 根据权利要求10所述的网络切片的接入控制装置，其特征在于，所述控制单元具体设置为：
    向核心网实体发送所述任一网络切片专有的在核心网实体的配置信息，并向基站发送所述任一网络切片专有的在接入网侧的配置信息，以及向所述终端化小区发送所述任一网络切片专有的在接入层之上的配置信息，以控制所述终端化小区接入所述任一网络切片；
    其中，所述基站在接收到所述接入网侧的配置信息后，对所述接入网侧的配置信息进行解析，得到所述任一网络切片专有的在接入层的配置信息，并将所述接入层的配置信息发送至所述终端化小区。
  12. 根据权利要求11所述的网络切片的接入控制装置，其特征在于：
    所述任一网络切片专有的在核心网实体的配置信息能够使所述任一网络切片的控制面和用户面在核心网得以运行；
    所述任一网络切片专有的在接入网侧的配置信息能够实现所述任一网络切片在接入网侧的无线资源管理；
    所述任一网络切片专有的在接入层之上的配置信息包括：在接入层之上的策略、路由选择、其它公用数据网络的连接配置和小区配置参数；
    所述任一网络切片专有的在接入层的配置信息包括：无线层配置和PCI参数，和/或D2D参数。
  13. 一种终端化小区，其特征在于，包括：如权利要求7至8中任一项所述的网络切片的接入控制装置。
  14. 一种SDN控制器，其特征在于，包括：如权利要求10至12中任一项所述的网络切片的接入控制装置。
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