WO2019137064A1 - 一种网络切片配置方法、第一网元和第二网元 - Google Patents

一种网络切片配置方法、第一网元和第二网元 Download PDF

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Publication number
WO2019137064A1
WO2019137064A1 PCT/CN2018/111898 CN2018111898W WO2019137064A1 WO 2019137064 A1 WO2019137064 A1 WO 2019137064A1 CN 2018111898 W CN2018111898 W CN 2018111898W WO 2019137064 A1 WO2019137064 A1 WO 2019137064A1
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Prior art keywords
network slice
information
network
cell
network element
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PCT/CN2018/111898
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English (en)
French (fr)
Inventor
李大鹏
高音
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中兴通讯股份有限公司
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Priority to MX2020007346A priority Critical patent/MX2020007346A/es
Priority to JP2020538053A priority patent/JP7232835B2/ja
Priority to EP18899236.6A priority patent/EP3739923B1/en
Priority to KR1020207022461A priority patent/KR20200108299A/ko
Publication of WO2019137064A1 publication Critical patent/WO2019137064A1/zh
Priority to US16/920,025 priority patent/US11483763B2/en

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    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
    • 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
    • H04L41/085—Retrieval of network configuration; Tracking network configuration history
    • H04L41/0853—Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information
    • 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
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • 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
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • 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

Definitions

  • the present application relates to a network slicing technology, and in particular, to a network slice configuration method, a first network element, and a second network element.
  • CPRI Common Public Radio Interface
  • LTE Long Term Evolution
  • the capacity poses a great challenge.
  • the CPRI is the pre-transmission interface between the BBU (Building Baseband Unit) and the Remote Radio Unit (RRU). Since CPRI transmits an in-phase quadrature (IQ) signal processed by physical layer coding and modulation, CPRI has a large requirement on transmission delay and bandwidth.
  • BBU Building Baseband Unit
  • RRU Remote Radio Unit
  • FIG. 1 is a schematic diagram of the 5G structure specified by the 3GPP TS 38.300 protocol. As shown in 1, it includes a 5G core network (5GC, 5G core) and a 5G access network (NG-RAN).
  • the network element of the 5G core network includes the Access and Mobility Management Function (AMF) and the User Plane Function (UPF), and the network element of the 5G access network. It includes a 4G base station (ng-eNB) or a 5G base station (gNB) that connects to the 5G core network.
  • the interface between the network element of the core network and the network element of the access network is an NG interface
  • the interface between the network elements of the access network is an Xn interface.
  • FIG. 2 is a schematic diagram of the architecture of a CU-DU function specified by the 3GPP TS 38.401 protocol.
  • the interface between the CUs of different access network elements is an Xn interface
  • the interface between the CU and the DU in the access network element is an F1 interface
  • the interface is an NG interface.
  • FIG. 3 is a schematic diagram of logical connections in an access network element.
  • the CU is divided into a control plane CU (CU-C) and a user plane CU (CU-U), then the interface between the DU and the CU-C is an F1-C interface, DU and CU-U.
  • the interface between the CU-Cs of different access network elements is an Xn-C interface
  • the interface between CU-Us of different access network elements is an Xn-U interface.
  • the interface between the CU-C and the core network element is an NG-C interface
  • the interface between the CU-U and the core network element is an NG-U interface.
  • the core network needs to allocate corresponding resources to the terminal based on the configuration of the network slice, thereby providing services for the terminal.
  • an effective method of configuring a network slice is not given in the related art.
  • the embodiment of the present application provides a network slice configuration method, which can implement network slice configuration, thereby providing services for the terminal.
  • the embodiment of the present application provides a network slice configuration method, including: a first network element sends network slice configuration information to a second network element, so that the second network element saves network slice information corresponding to the network slice configuration information. .
  • the method further includes: the first network element acquiring the network slice configuration information.
  • the network slice configuration information includes at least one of the following: network slice information, network slice information to which the cell belongs, network slice information of the data radio bearer of the terminal, tracking area information of the cell attribution, and tracking area support. Network slice information.
  • the network slice information includes at least one of the following: a network slice identifier, a network slice set, and a network slice type.
  • the network slice to which the data radio bearer of the terminal belongs is the same as the network slice to which the data connection session corresponding to the data radio bearer belongs.
  • the embodiment of the present application further provides a network slice configuration method, including: a second network element receives network slice configuration information of a first network element; and a second network element saves network slice information corresponding to the network slice configuration information.
  • the network slice configuration information includes at least one of the following: network slice information, network slice information to which the cell belongs, network slice information of the data radio bearer of the terminal, tracking area information of the cell attribution, and tracking area support. Network slice information.
  • the network slice information includes at least one of the following: a network slice identifier, a network slice set, and a network slice type.
  • the network slice to which the data radio bearer of the terminal belongs is the same as the network slice to which the data connection session corresponding to the data radio bearer belongs.
  • the network slice configuration information includes tracking area information to which the cell belongs
  • the saving, by the second network element, the network slice information corresponding to the network slice configuration information includes: determining, by the second network element, the network slice information of the cell according to the tracking area information that the cell belongs to and the network slice information supported by the tracking area, The network slice information of the cell is saved in the cell information or the network slice information supported by the second network element.
  • the network slice configuration information includes network slice information to which the cell belongs
  • the second network element saves the network slice information corresponding to the network slice configuration information, where the second network element saves the network slice information of the cell to the cell information or the network slice information supported by the second network element. in.
  • the network slice configuration information includes network slice information of a data radio bearer of the terminal
  • the saving, by the second network element, the network slice information corresponding to the network slice configuration information includes: saving, by the second network element, the network slice configuration information into a context of the terminal.
  • the embodiment of the present application further provides a first network element, including:
  • the sending module is configured to send the network slice configuration information to the second network element, so that the second network element saves the network slice information corresponding to the network slice configuration information.
  • the network element further includes: an obtaining module, configured to acquire the network slice configuration information.
  • the embodiment of the present application further provides a second network element, including:
  • a receiving module configured to receive network slice configuration information of the first network element
  • a storage module configured to save network slice information corresponding to the network slice configuration information.
  • the embodiment of the present application further provides a first network element, including a first processor and a first memory for storing a computer program capable of running on the first processor, where the first processor is configured to run the computer In the program, the step of applying the network slice configuration method in the first network element in the embodiment of the present application is performed.
  • the embodiment of the present application further provides a second network element, including a second processor and a second memory for storing a computer program capable of running on the second processor, where the second processor is configured to run the computer In the program, the step of applying the network slice configuration method in the second network element in the embodiment of the present application is performed.
  • the embodiment of the present application provides a computer readable storage medium, where the computer program is stored, and when the computer program is executed by the processor, the embodiment of the present application is applied to the first network element or the second network element.
  • the steps of the network slice configuration method are described in detail below.
  • the network slice configuration method of the embodiment of the present invention implements the configuration of the network slice by sending the network slice configuration information to the second network element by using the first network element, thereby providing services for the terminal.
  • 1 is a schematic diagram of a 5G structure defined by the related art 3GPP TS 38.300 protocol;
  • FIG. 2 is a schematic structural diagram of a CU-DU function specified by the related art 3GPP TS 38.401 protocol;
  • FIG. 3 is a schematic diagram of logical connections in a network element of a related art access network
  • FIG. 4 is a flowchart of a method for configuring a network slice on a first network element side according to an embodiment of the present application
  • FIG. 5 is a flowchart of a second network element side network slice configuration method according to an embodiment of the present application.
  • FIG. 6 is a flowchart of a network slice configuration method according to a first embodiment of the present application.
  • FIG. 7 is a flowchart of a network slice configuration method according to a second embodiment of the present application.
  • FIG. 8 is a flowchart of a network slice configuration method according to a third embodiment of the present application.
  • FIG. 9 is a flowchart of a network slice configuration method according to a fourth embodiment of the present application.
  • FIG. 10 is a flowchart of a network slice configuration method according to a fifth embodiment of the present application.
  • FIG. 11 is a flowchart of a network slice configuration method according to a sixth embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a first network element according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a second network element according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of another first network element according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of another second network element according to an embodiment of the present application.
  • an embodiment of the present application provides a network slice configuration method, including:
  • Step 400 The first network element sends network slice configuration information to the second network element, so that the second network element saves network slice information corresponding to the network slice configuration information.
  • the network slice configuration information includes at least one of the following: network slice information, network slice information to which the cell belongs, network slice information to which the data radio bearer of the terminal belongs, and tracking area (TA, Tracing Area) information to which the cell belongs. , the network slice information supported by the tracking area.
  • the network slice configuration is performed by the method, resources are allocated to the terminal according to the cell, thereby effectively improving the mobility management capability of the terminal. For example, a certain terminal needs to move from a certain DU under the CU to another DU, and the CU can switch the terminal to the target DU. At least one of the network slices to which the cell provided by the target DU belongs is a network slice supported by the terminal; otherwise After the terminal switches to the target DU, if the network slice to which the cell on the target DU belongs is not the network slice supported by the terminal, the terminal handover fails.
  • the network slice information includes at least one of the following: a network slice identifier (S-NSSAI), a network slice selection assistance information (NSSAI), a network slice selection assistance information, and a network Slice type (ST, Slice Type).
  • S-NSSAI network slice identifier
  • NSSAI network slice selection assistance information
  • ST, Slice Type network Slice type
  • the network slice to which the data radio bearer (DRB) of the terminal belongs and the data connection session corresponding to the data radio bearer (PDU (Power Distribution Unit) session The network slices to which they belong are the same.
  • the second network element (such as a DU) can allocate resources according to the resource condition of the network slice to which the wireless data bearer of the terminal belongs, thereby improving the accuracy of resource allocation and ensuring isolation of resources between network slices.
  • the tracking area information that the cell belongs to is the correspondence between the cell information and the tracking area information, and the specific format may be the following two.
  • One of the forms is sent:
  • the first network element sends the tracking area information and the cell information of the home tracking area (such as the cell list of the attribution tracking area) to the second network element, as shown in Table 1:
  • the first network element sends the cell information to the second network element and the tracking area information to which the cell belongs, as shown in Table 2:
  • the network slice information that the cell belongs to is the correspondence between the cell information and the network slice information, and the specific format may be the following two.
  • One of the forms is sent:
  • the first network element sends the network slice information and the cell information of the home network slice (such as the cell list of the home network slice) to the second network element, as shown in Table 3:
  • the first network element sends the cell information to the second network element and the network slice information to which the cell belongs, as shown in Table 4:
  • the network slice information of the data radio bearer of the terminal when the first network element sends the network slice information of the data radio bearer of the terminal to the second network element, the network slice information of the data radio bearer of the terminal, that is, the data radio bearer information of the terminal and the network slice information
  • the network slice information of the data radio bearer of the terminal that is, the data radio bearer information of the terminal and the network slice information
  • the first network element sends the network slice information and the data radio bearer information of the home network slice to the second network element (such as the data radio bearer list of the home network slice), as shown in Table 5:
  • the first network element sends the data radio bearer information and the network slice information of the data radio bearer to the second network element, as shown in Table 6:
  • Data radio bearer 1 Network slice information 1 Data radio bearer 2 Network slice information 2 ?? whereas Data radio bearer P Network slice information P
  • the method further includes:
  • Step 401 The first network element acquires network slice configuration information.
  • the network slice configuration information is the network slice information of the data radio bearer of the terminal on the home DU
  • the mapping relationship between the data radio bearer and the data connection session and the network to which the data connection session belongs may be used.
  • the slice information determines network slice information to which the data radio bearer of the terminal belongs.
  • the network slice to which the data radio bearer of the terminal belongs is the same as the network slice to which the data radio session corresponding to the data radio bearer belongs. Therefore, the network slice information of the data radio bearer of the terminal is the data corresponding to the data radio bearer. The network slice information to which the session is connected.
  • the network slice information to which the cell belongs may be determined according to the tracking area information of the cell to which the network management is configured and the network slice information supported by the tracking area. That is to say, the network slice information to which the cell belongs is the network slice information supported by the tracking area to which the cell belongs.
  • the first network element and the second network element may be any network element, for example, the first network element is a DU, and the second network element is a CU; or the first network element is a CU, and the second network element is a second network element. DU.
  • an embodiment of the present application further provides a network slice configuration method, including:
  • Step 500 The second network element receives network slice configuration information of the first network element.
  • the network slice configuration information includes at least one of the following: network slice information, network slice information to which the cell belongs, network slice information to which the data radio bearer of the terminal belongs, tracking area information to which the cell belongs, and a network supported by the tracking area. Slice information.
  • the network slice information includes at least one of the following: a network slice identifier, a network slice set, and a network slice type.
  • the network slice to which the data radio bearer of the terminal belongs is the same as the network slice to which the data connection session corresponding to the data radio bearer belongs.
  • the second network element (such as a DU) can allocate resources according to the resource condition of the network slice to which the data radio bearer of the terminal belongs, thereby improving the accuracy of resource allocation and ensuring isolation of resources between network slices. If the network element does not know which network slice the terminal radio bearer belongs to, it is possible to allocate the functions of other network slices to the data radio bearer of the terminal.
  • Step 501 The second network element saves network slice information corresponding to the network slice configuration information.
  • the network slice information of the cell is determined according to the tracking area information of the cell and the network slice information supported by the tracking area, and the network slice information of the cell belongs to Saved to the cell information or the network slice information supported by the second network element.
  • the network slice information that the cell belongs to is the network slice information supported by the tracking area to which the cell belongs.
  • the second network element saves the network slice information that the cell belongs to in the cell information or the network slice information supported by the second network element.
  • the second network element saves the network slice configuration information to the context of the terminal.
  • the first network element and the second network element may be any network element, for example, the first network element is a DU, and the second network element is a CU; or the first network element is a CU, and the second network element is a second network element. DU.
  • the embodiment of the present application implements the configuration of the network slice by sending the network slice configuration information to the second network element by using the first network element, thereby providing services for the terminal.
  • the DU sends the tracking area information to which the DU side cell belongs to the CU, and the format of the tracking area information that the cell belongs to is the tracking area information and the cell information of the belonging tracking area.
  • the method includes:
  • Step 600 The DU configures a corresponding tracking area for each cell through the network management.
  • Step 601 The DU triggers the establishment process of the F1-C interface or the update process of the F1-C interface, and sends the tracking area information of the cell to the CU in the process of establishing the F1-C interface or the update process of the F1-C interface. It is tracking area information and cell information of the belonging tracking area.
  • the DU may send the tracking area information of the cell to the CU in a message such as an F1 SETUP REQUEST message and a GNP-DU configuration update (CONFIGURATION UPDATE) message.
  • a message such as an F1 SETUP REQUEST message and a GNP-DU configuration update (CONFIGURATION UPDATE) message.
  • each tracking area information of the F1 SETUP REQUEST message carries cell information of the home tracking area.
  • the network slice information supported by the tracking area may also be sent to the CU.
  • Step 602 The CU receives the tracking area information that the cell belongs to, and determines the network slice information to which the cell belongs according to the tracking area information to which the cell belongs.
  • the UC may be indirectly according to the received tracking area information and the cell information of the home tracking area. Obtain network slice information of the cell to which the DU side belongs.
  • the network slice to which the cell belongs is the network slice supported by the tracking area to which the cell belongs.
  • Step 603 The CU saves the network slice information of the cell to the network slice information supported by the CU, and triggers the establishment process or the update process of the NG interface, and sends the network slice information of the cell to the NG interface establishment process or the update process.
  • the CU saves the network slice information of the cell to the network slice information supported by the CU, and triggers the establishment process or the update process of the NG interface, and sends the network slice information of the cell to the NG interface establishment process or the update process.
  • 5G core network elements The CU saves the network slice information of the cell to the network slice information supported by the CU, and triggers the establishment process or the update process of the NG interface, and sends the network slice information of the cell to the NG interface establishment process or the update process.
  • the DU sends the tracking area information to which the DU side cell belongs to the CU, and the format of the tracking area information that the cell belongs to is the cell information and the tracking area information to which the cell belongs.
  • the method includes:
  • Step 700 The DU configures a corresponding tracking area for each cell through the network management.
  • Step 701 The DU triggers the establishment process of the F1-C interface or the update process of the F1-C interface, and sends the tracking area information of the cell to the CU in the process of establishing the F1-C interface or the update process of the F1-C interface. It is the cell information and the tracking area information of the cell attribution.
  • the DU may carry the tracking area information of the cell to the CU in a message such as an F1 SETUP REQUEST message and/or a GNB-DU CONFIGURATION UPDATE message.
  • a message such as an F1 SETUP REQUEST message and/or a GNB-DU CONFIGURATION UPDATE message.
  • the tracking area information of the cell attribution is carried in the Served Cell Information field of the F1 SETUP REQUEST message.
  • the network slice information supported by the tracking area may also be sent to the CU.
  • Step 702 The CU receives the tracking area information that the cell belongs to, and determines the network slice information that the cell belongs according to the tracking area information that the cell belongs to.
  • the CU and the DU can learn the network slice supported by the tracking area through the configuration, or the CU receives the network slice information supported by the tracking area. Therefore, according to the received tracking area information and the cell information of the home tracking area, the CU can be indirectly Obtain network slice information of the cell to which the DU side belongs.
  • the network slice to which the cell belongs is a network slice supported by the tracking area to which the cell belongs.
  • Step 703 The CU saves the network slice information of the cell to the network slice information supported by the CU, and triggers the establishment process or the update process of the NG interface, and sends the network slice information of the cell to the NG interface establishment process or the update process.
  • the CU saves the network slice information of the cell to the network slice information supported by the CU, and triggers the establishment process or the update process of the NG interface, and sends the network slice information of the cell to the NG interface establishment process or the update process.
  • 5G core network elements The CU saves the network slice information of the cell to the network slice information supported by the CU, and triggers the establishment process or the update process of the NG interface, and sends the network slice information of the cell to the NG interface establishment process or the update process.
  • the DU sends the network slice information of the cell to the CU to the CU, and the format of the network slice information that the cell belongs to is the network slice information and the cell information of the home network slice.
  • the method includes:
  • Step 800 The DU configures a corresponding network slice for each cell through the network management.
  • Step 801 The DU triggers the establishment process of the F1-C interface or the update process of the F1-C interface, and sends the network slice information of the cell to the CU in the process of establishing the F1-C interface or the update process of the F1-C interface.
  • the DU may send the network slice information of the cell to the CU in a message such as an F1 SETUP REQUEST message and/or a GNB-DU CONFIGURATION UPDATE message.
  • a message such as an F1 SETUP REQUEST message and/or a GNB-DU CONFIGURATION UPDATE message.
  • the network slice information field of the F1 SETUP REQUEST message carries cell information of the home network slice.
  • Step 802 The CU receives the network slice information of the cell, saves the network slice information of the cell to the network slice information supported by the CU, and triggers the establishment process or the update process of the NG interface, in the process of establishing or updating the NG interface.
  • the network slice information to which the cell belongs is sent to the 5G core network element.
  • the DU sends the network slice information of the cell to the CU to the CU, and the format of the network slice information to which the cell belongs is the cell information and the network slice information to which the cell belongs.
  • the method includes:
  • Step 900 The DU configures a corresponding network slice for each cell through the network management.
  • Step 901 The DU triggers the establishment process of the F1-C interface or the update process of the F1-C interface, and sends the network slice information of the cell to the CU in the process of establishing the F1-C interface or the update process of the F1-C interface. It is the cell information and the network slice information to which the cell belongs.
  • the DU may send the network slice information of the cell to the CU in a message such as an F1 SETUP REQUEST message and/or a GNB-DU CONFIGURATION UPDATE message.
  • the network slice information to which the cell belongs is carried in the Served Cell Information field of the F1 SETUP REQUEST message.
  • Step 902 The CU receives the network slice information of the cell, saves the network slice information of the cell to the network slice information supported by the CU, and triggers the establishment process or the update process of the NG interface, in the process of establishing or updating the NG interface.
  • the network slice information to which the cell belongs is sent to the 5G core network element.
  • the CU sends the network slice information to which the DU side cell belongs to the DU.
  • the method includes:
  • Step 1000 The CU configures network slice information to which the DU side cell belongs by using the network management.
  • Step 1001 The CU sends the network slice information to which the DU side cell belongs to the DU.
  • the CU may send the network slice information of the cell of the DU side to the DU through the F1-C interface setup response message or the F1-C interface update configuration message (gNB-CU configuration Update).
  • the CU may carry the network slice information to which the DU side cell belongs in the Cell to be Activated List Item field in the F1-C interface setup response message.
  • Step 1002 The DU receives the network slice information of the cell, and saves the network slice information of the cell to the cell information.
  • the CU sends the network slice information of the data radio bearer of the terminal on the home DU to the DU.
  • the method includes:
  • Step 1100 The CU establishes a data radio bearer for the terminal on the home DU, and determines network slice information to which the data radio bearer belongs.
  • the CU configures the network slice to which the PDU session belongs in the process of establishing the data radio bearer to the DRB to be established on the DU.
  • Step 1101 The CU sends the network slice information of the data radio bearer of the terminal on the home DU to the DU.
  • the CU may use a UE Context Context Setup process or a UE Context Modification (UE Context Context Modification) process in the UE Context Modification (UE CONTEXT SETUP REQUEST) message, the user equipment context modification request (UE CONTEXT)
  • UE Context Context Modification UE Context Modification
  • UE CONTEXT SETUP REQUEST the user equipment context modification request
  • a message such as a MODIFICATION REQUEST message is sent to the DU by the network slice information to which the data radio bearer belongs.
  • the network slice information of the data radio bearer may be carried in the DRB to Be Setup Item IEs field of the UE CONTEXT SETUP REQUEST message.
  • Step 1102 The DU saves the network slice information of the data radio bearer of the terminal to the context of the terminal.
  • the embodiment of the present application provides a first network element, including: a sending module, configured to send network slice configuration information to a second network element, so that the second network element saves a network slice corresponding to the network slice configuration information. information.
  • the first network element further includes: an obtaining module, configured to acquire the network slice configuration information.
  • the network slice configuration information includes at least one of the following: network slice information, network slice information to which the cell belongs, network slice information of the data radio bearer of the terminal, tracking area information of the cell attribution, and tracking area support. Network slice information.
  • the network slice information includes at least one of the following: a network slice identifier, a network slice set, and a network slice type.
  • the network slice to which the data radio bearer of the terminal belongs is the same as the network slice to which the data connection session corresponding to the data radio bearer belongs.
  • an embodiment of the present application further provides a second network element, including:
  • a receiving module configured to receive network slice configuration information of the first network element
  • a storage module configured to save network slice information corresponding to the network slice configuration information.
  • the network slice configuration information includes at least one of the following: network slice information, network slice information to which the cell belongs, network slice information of the data radio bearer of the terminal, tracking area information of the cell attribution, and tracking area support. Network slice information.
  • the network slice information includes at least one of the following: a network slice identifier, a network slice set, and a network slice type.
  • the network slice to which the data radio bearer of the terminal belongs is the same as the network slice to which the data connection session corresponding to the data radio bearer belongs.
  • the network slice configuration information includes tracking area information to which the cell belongs
  • the storage module is configured to: determine, according to the tracking area information of the cell and the network slice information supported by the tracking area, the network slice information of the cell, and save the network slice information of the cell to the cell information or the second The network slice information supported by the NE.
  • the network slice configuration information includes network slice information to which the cell belongs
  • the storage module is configured to: save the network slice information of the cell to be saved in the cell information or the network slice information supported by the second network element.
  • the network slice configuration information includes network slice information of a data radio bearer of the terminal
  • the storage module is configured to save the network slice configuration information into a context of the terminal.
  • an embodiment of the present application provides a first network element, including a first processor and a first memory for storing a computer program capable of running on a first processor, where the first processor is configured to run In the computer program, the step of applying the network slice configuration method applied to the first network element in the embodiment of the present application is performed.
  • an embodiment of the present application provides a second network element, including a second processor and a second memory for storing a computer program capable of running on a second processor, where the second processor is configured to run In the computer program, the step of applying the network slice configuration method applied to the second network element in the embodiment of the present application is performed.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer program is stored, and when the computer program is executed by the processor, the embodiment of the present application is applied to the network in the first network element or the second network element.
  • the steps of the slice configuration method are described in detail below.
  • the memory may be either volatile memory or non-volatile memory, and may include both volatile and non-volatile memory.
  • the non-volatile memory may be a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), or an Erasable Programmable Read (EPROM). Only Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, Magnetic Surface Memory , CD-ROM, or Compact Disc Read-Only Memory (CD-ROM); the magnetic surface memory can be a disk storage or a tape storage.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • SSRAM Synchronous Static Random Access Memory
  • SSRAM Dynamic Random Access
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM enhancement Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Dynamic Random Access Memory
  • DRRAM Direct Memory Bus Random Access Memory
  • the method disclosed in the foregoing embodiments of the present invention may be applied to a processor or implemented by a processor.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the above processor may be a general purpose processor, a digital signal processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or the like.
  • DSP digital signal processor
  • the processor may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present invention.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a storage medium, the storage medium being located in the memory, the processor reading the information in the memory, and completing the steps of the foregoing methods in combination with the hardware thereof.
  • first network element in the embodiment of the present application may further include a first communication module configured to send information, such as network slice configuration information.
  • the second network element in the embodiment of the present application may further include a second communication module configured to receive information, such as network slice configuration information.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.
  • the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本申请实施例公开了一种网络切片配置方法、第一网元和第二网元，所述网络切片配置方法包括：第一网元向第二网元发送网络切片配置信息，以使所述第二网元保存所述网络切片配置信息对应的网络切片信息；第二网元接收第一网元的网络切片配置信息；所述第二网元保存所述网络切片配置信息对应的网络切片信息。

Description

一种网络切片配置方法、第一网元和第二网元
相关申请的交叉引用
本申请基于申请号为201810023573.4、申请日为2018年1月10日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请涉及网络切片技术，具体涉及一种网络切片配置方法、第一网元和第二网元。
背景技术
第五代移动通信(5G，Fifth Generation)中，海量连接以及用户更高的速率要求，对长期演进(LTE，Long Term Evolution)系统中的通用公共无线电接口(CPRI，Common Public Radio Interface)的传输容量提出了极大的挑战，CPRI即射频拉远单元(BBU，Building Baseband Unit)与基带处理单元(RRU，Remote Radio Unit)之间的前传接口。由于CPRI传输的是经过物理层编码调制等处理后的同相正交(IQ，In-phase Quadrature)信号，CPRI对传输时延和带宽都有较大的要求。如果在5G空口速率提升到数十吉比特每秒(Gbps，Gigabyte per second)后，CPRI的流量需求将上升到太比特每秒(Tbps，Tera Bytes per second)级别，对网络部署成本和部署难度都带来了巨大的压力。因此，在5G中，需要重新定义前传接口的划分点，比如将时延不敏感的用户面功能放在集中处理单元(CU，Centralized Unit)中，将时延敏感的用户面功能放在分布式处理单元(DU，Distributed Unit)中，CU与DU之间通过理想和/或非理想前传接口进行传输。
图1为3GPP TS 38.300协议规定的5G结构示意图。如1所示，包括5G核心网(5GC，5G core)和5G接入网(NG-RAN)。其中，5G核心网的网元包括图中的接入和移动性管理网元(AMF，Access and Mobility Management Function)和用户面功能网元(UPF，User Plane Function)，5G接入网的网元包括连接5G核心网的4G基站(ng-eNB)或5G基站(gNB)。核心网网元和接入网网元之间的接口为NG接口，接入网网元之间的接口为Xn接口。
图2为3GPP TS 38.401协议规定的CU-DU功能的架构示意图。如图2所示，不同接入网网元的CU之间的接口为Xn接口，接入网网元内的CU和DU之间的接口为F1接口，接入网与5G核心网之间的接口为NG接口。
图3为接入网网元内的逻辑连接示意图。如图3所示，将CU分割成控制面CU(CU-C)和用户面CU(CU-U)，那么，DU和CU-C之间的接口为F1-C接口，DU和CU-U之间的接口为F1-U接口，不同接入网网元的CU-C之间的接口为Xn-C接口，不同接入网网元的CU-U之间的接口为Xn-U接口，CU-C和核心网网元之间的接口为NG-C接口，CU-U和核心网网元之间的接口为NG-U接口。
上述5G结构的CU-DU功能的架构中，核心网需要基于网络切片的配置为终端分配对应的资源，从而为终端提供服务。然而相关技术中并未给出有效的网络切片的配置方法。
发明内容
本申请实施例提供了一种网络切片配置方法，能够实现网络切片的配置，从而为终端提供服务。
本申请实施例提供了一种网络切片配置方法，包括：第一网元向第二网元发送网络切片配置信息，以使所述第二网元保存所述网络切片配置信息对应的网络切片信息。
在一实施例中，该方法之前还包括：所述第一网元获取所述网络切片配置信息。
在一实施例中，所述网络切片配置信息包括以下至少之一：网络切片信息、小区归属的网络切片信息、终端的数据无线承载归属的网络切片信息、小区归属的跟踪区信息、跟踪区支持的网络切片信息。
在一实施例中，所述网络切片信息包括以下至少之一：网络切片标识、网络切片集合、网络切片类型。
在一实施例中，所述终端的数据无线承载归属的网络切片和所述数据无线承载对应的数据连接会话归属的网络切片相同。
本申请实施例还提供了一种网络切片配置方法，包括：第二网元接收第一网元的网络切片配置信息；第二网元保存所述网络切片配置信息对应的网络切片信息。
在一实施例中，所述网络切片配置信息包括以下至少之一：网络切片信息、小区归属的网络切片信息、终端的数据无线承载归属的网络切片信息、小区归属的跟踪区信息、跟踪区支持的网络切片信息。
在一实施例中，所述网络切片信息包括以下至少之一：网络切片标识、网络切片集合、网络切片类型。
在一实施例中，所述终端的数据无线承载归属的网络切片和所述数据无线承载对应的数据连接会话归属的网络切片相同。
在一实施例中，所述网络切片配置信息包括小区归属的跟踪区信息；
所述第二网元保存网络切片配置信息对应的网络切片信息包括：所述第二网元根据所述小区归属的跟踪区信息和跟踪区支持的网络切片信息确定小区归属的网络切片信息，将所述小区归属的网络切片信息保存到小区信息或所述第二网元支持的网络切片信息中。
在一实施例中，所述网络切片配置信息包括小区归属的网络切片信息；
所述第二网元保存网络切片配置信息对应的网络切片信息包括：所述第二网元将所述小区归属的网络切片信息保存到小区信息中或所述第二网元支持的网络切片信息中。
在一实施例中，所述网络切片配置信息包括终端的数据无线承载归属的网络切片信息；
所述第二网元保存网络切片配置信息对应的网络切片信息包括：所述第二网元将所述网络切片配置信息保存到所述终端的上下文中。
本申请实施例还提供了一种第一网元，包括：
发送模块，配置为向第二网元发送网络切片配置信息，以使所述第二网元保存所述网络切片配置信息对应的网络切片信息。
在一实施例中，所述网元还包括：获取模块，配置为获取所述网络切片配置信息。
本申请实施例还提供了一种第二网元，包括：
接收模块，配置为接收第一网元的网络切片配置信息；
存储模块，配置为保存所述网络切片配置信息对应的网络切片信息。
本申请实施例还提供了一种第一网元，包括第一处理器和用于存储能够在第一处理器上运行的计算机程序的第一存储器，所述第一处理器用于运行所述计算机程序时，执行本申请实施例应用于第一网元中的所述网络切片配置方法的步骤。
本申请实施例还提供了一种第二网元，包括第二处理器和用于存储能够在第二处理器上运行的计算机程序的第二存储器，所述第二处理器用于运行所述计算机程序时，执行本申请实施例应用于第二网元中的所述网络切片配置方法的步骤。
本申请实施例提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例应用于第一网元或 第二网元中的所述网络切片配置方法的步骤。
本申请实施例的网络切片配置方法，通过第一网元向第二网元发送网络切片配置信息的方式，实现了网络切片的配置，从而为终端提供服务。
附图说明
附图用来提供对本申请技术方案的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本申请的技术方案，并不构成对本申请技术方案的限制。
图1为相关技术3GPP TS 38.300协议规定的5G结构示意图；
图2为相关技术3GPP TS 38.401协议规定的CU-DU功能的架构示意图；
图3为相关技术接入网网元内的逻辑连接示意图；
图4为本申请实施例第一网元侧网络切片配置方法的流程图；
图5为本申请实施例第二网元侧网络切片配置方法的流程图；
图6为本申请第一实施例网络切片配置方法的流程图；
图7为本申请第二实施例网络切片配置方法的流程图；
图8为本申请第三实施例网络切片配置方法的流程图；
图9为本申请第四实施例网络切片配置方法的流程图；
图10为本申请第五实施例网络切片配置方法的流程图；
图11为本申请第六实施例网络切片配置方法的流程图；
图12为本申请实施例第一网元的结构组成示意图；
图13为本申请实施例第二网元的结构组成示意图；
图14为本申请实施例另一种第一网元的结构组成示意图；
图15为本申请实施例另一种第二网元的结构组成示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚明白，下文中将结合附图对本申请的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
参见图4，本申请实施例提出了一种网络切片配置方法，包括：
步骤400、第一网元向第二网元发送网络切片配置信息，以使第二网元保存网络切片配置信息对应的网络切片信息。
本申请实施例中，网络切片配置信息包括以下至少之一：网络切片信息、小区归属的网络切片信息、终端的数据无线承载归属的网络切片信息、小区归属的跟踪区(TA，Tracing Area)信息、跟踪区支持的网络切片信息。
通过该方法进行网络切片配置后，后续按照小区为终端分配资源，从而有效的提高了对终端的移动性管理能力。例如，某个终端需要从CU下的某个DU移动到另一个DU，CU可以将终端切换到目标DU，该目标DU所提供的小区归属的网络切片中至少一个是终端支持的网络切片；否则，终端切换到目标DU后，如果目标DU上的小区归属的网络切片均不是终端支持的网络切片，则会造成终端切换失败。
本申请的一种可选实施例中，网络切片信息包括以下至少之一：网络切片标识(S-NSSAI，Single Network Slice Selection Assistance Information)、网络切片集合(NSSAI，Network Slice Selection Assistance Information)、网络切片类型(ST，Slice Type)。通过上述方法进行网络切片配置后，后续按照小区为终端分配资源，从而有效的提高了对终端的移动性管理能力。
本申请的一种可选实施例中，终端的数据无线承载(DRB，Data Radio  Bearer)归属的网络切片和所述数据无线承载对应的数据连接会话(协议数据单元(PDU，Power Distribution Unit)session)归属的网络切片相同。通过该方法第二网元(如DU)可以根据终端的无线数据承载所归属的网络切片的资源情况来分配资源，从而提高了资源分配的准确性，保证了网络切片间资源的隔离。
本申请实施例中，第一网元向第二网元发送小区归属的跟踪区信息时，小区归属的跟踪区信息即小区信息和跟踪区信息之间的对应关系，具体的格式可以采用以下两种形式中的其中之一进行发送：
第一种形式，第一网元向第二网元发送跟踪区信息以及归属跟踪区的小区信息(如归属跟踪区的小区列表)，如表1所示：
表1
跟踪区1 小区1、小区2、……、小区A
跟踪区2 小区1、小区2、……、小区B
…… ……
跟踪区N 小区1、小区2、……、小区M
第二种形式，第一网元向第二网元发送小区信息以及小区归属的跟踪区信息，如表2所示：
表2
小区1 跟踪区1
小区2 跟踪区2
…… ……
小区P 跟踪区P
本申请实施例中，第一网元向第二网元发送小区归属的网络切片信息时，小区归属的网络切片信息即小区信息和网络切片信息之间的对应关系，具体的格式可以采用以下两种形式中的其中之一进行发送：
第一种形式，第一网元向第二网元发送网络切片信息以及归属网络切片的小区信息(如归属网络切片的小区列表)，如表3所示：
表3
网络切片信息1 小区1、小区2、……、小区A
网络切片信息2 小区1、小区2、……、小区B
…… ……
网络切片信息N 小区1、小区2、……、小区M
第二种形式，第一网元向第二网元发送小区信息以及小区归属的网络切片信息，如表4所示：
表4
小区1 网络切片信息1
小区2 网络切片信息2
…… ……
小区P 网络切片信息P
本申请实施例中，第一网元向第二网元发送终端的数据无线承载归属的网络切片信息时，终端的数据无线承载归属的网络切片信息即终端的数据无线承载信息和网络切片信息之间的对应关系，具体的格式可以采用以下两种形式中的其中之一进行发送：
第一种形式，第一网元向第二网元发送网络切片信息以及归属网络切片的数据无线承载信息(如归属网络切片的数据无线承载列表)，如表5所示：
表5
Figure PCTCN2018111898-appb-000001
Figure PCTCN2018111898-appb-000002
第二种形式，第一网元向第二网元发送数据无线承载信息以及数据无线承载归属的网络切片信息，如表6所示：
表6
数据无线承载1 网络切片信息1
数据无线承载2 网络切片信息2
…… ……
数据无线承载P 网络切片信息P
在本申请的一种可选实施例中，该方法之前还包括：
步骤401、第一网元获取网络切片配置信息。
本申请实施例中，当网络切片配置信息为归属DU上的终端的数据无线承载归属的网络切片信息时，可以根据数据无线承载和数据连接会话之间的映射关系，以及数据连接会话归属的网络切片信息确定终端的数据无线承载归属的网络切片信息。
作为一种示例，由于终端的数据无线承载归属的网络切片和数据无线承载对应的数据连接会话归属的网络切片相同，因此，终端的数据无线承载归属的网络切片信息即为数据无线承载对应的数据连接会话归属的网络切片信息。
本申请实施例中，当网络切片配置信息为小区归属的网络切片信息时，可以根据网管配置的小区归属的跟踪区信息和跟踪区支持的网络切片信息确定小区归属的网络切片信息。也就是说，小区归属的网络切片信息即为小区归属的跟踪区支持的网络切片信息。
本实施例中，第一网元和第二网元可以是任意网元，例如，第一网元 为DU，第二网元为CU；或者，第一网元为CU，第二网元为DU。
参见图5，本申请实施例还提出了一种网络切片配置方法，包括：
步骤500、第二网元接收第一网元的网络切片配置信息。
本申请实施例中，网络切片配置信息包括以下至少之一：网络切片信息、小区归属的网络切片信息、终端的数据无线承载归属的网络切片信息、小区归属的跟踪区信息、跟踪区支持的网络切片信息。
本申请实施例中，网络切片信息包括以下至少之一：网络切片标识、网络切片集合、网络切片类型。
在本申请的一种可选实施例中，终端的数据无线承载归属的网络切片和所述数据无线承载对应的数据连接会话归属的网络切片相同。这样，第二网元(如DU)可以根据终端的数据无线承载所归属的网络切片的资源情况来分配资源，从而提高了资源分配的准确性，保证了网络切片间资源的隔离，如果第一网元不知道终端的数据无线承载归属于哪一个网络切片，则有可能将其他网络切片的功能分配给终端的数据无线承载。
步骤501、第二网元保存网络切片配置信息对应的网络切片信息。
本申请实施例中，当网络切片配置信息包括小区归属的跟踪区信息时，根据小区归属的跟踪区信息和跟踪区支持的网络切片信息确定小区归属的网络切片信息，将小区归属的网络切片信息保存到小区信息或第二网元支持的网络切片信息中。
其中，小区归属的网络切片信息即为小区归属的跟踪区支持的网络切片信息。
当网络切片配置信息包括小区归属的网络切片信息时，第二网元将小区归属的网络切片信息保存到小区信息中或第二网元支持的网络切片信息中。
当网络切片配置信息包括终端的数据无线承载归属的网络切片信息 时，第二网元将网络切片配置信息保存到终端的上下文中。
本实施例中，第一网元和第二网元可以是任意网元，例如，第一网元为DU，第二网元为CU；或者，第一网元为CU，第二网元为DU。
本申请实施例通过第一网元向第二网元发送网络切片配置信息的方式，实现了网络切片的配置，从而为终端提供服务。
下面通过具体可选实施例结合图1至图3详细说明上述方法的具体实现。
第一实施例
本实施例中，DU将DU侧小区归属的跟踪区信息发送给CU，小区归属的跟踪区信息的格式为跟踪区信息以及归属跟踪区的小区信息。
参见图6，该方法包括：
步骤600、DU通过网管为每一个小区配置对应的跟踪区。
步骤601、DU触发F1-C接口的建立过程或F1-C接口的更新过程，在F1-C接口的建立过程或F1-C接口的更新过程中将小区归属的跟踪区信息发送给CU，格式为跟踪区信息以及归属跟踪区的小区信息。
本步骤中，DU可以将小区归属的跟踪区信息携带在F1接口的建立请求(F1 SETUP REQUEST)消息和或GNB-DU配置更新(CONFIGURATION UPDATE)消息等消息中发送给CU。例如，在F1 SETUP REQUEST消息的每一个跟踪区信息携带归属跟踪区的小区信息。
本步骤中，还可以将跟踪区支持的网络切片信息发送给CU。
步骤602、CU接收小区归属的跟踪区信息，根据小区归属的跟踪区信息确定小区归属的网络切片信息。
本步骤中，由于CU和DU通过配置获知跟踪区支持的网络切片，或者CU接收到跟踪区支持的网络切片信息，因此，根据接收到的跟踪区信息以及归属跟踪区的小区信息，UC可以间接获得DU侧小区归属的网络切片信 息。
作为一种示例，小区归属的网络切片即为小区归属的跟踪区支持的网络切片。
步骤603、CU将小区归属的网络切片信息保存到CU支持的网络切片信息中，并触发NG接口的建立流程或更新流程，在NG接口的建立流程或更新流程中将小区归属的网络切片信息发送给5G核心网网元。
第二实施例
本实施例中，DU将DU侧小区归属的跟踪区信息发送给CU，小区归属的跟踪区信息的格式为小区信息以及小区归属的跟踪区信息。
参见图7，该方法包括：
步骤700、DU通过网管为每一个小区配置对应的跟踪区。
步骤701、DU触发F1-C接口的建立过程或F1-C接口的更新过程，在F1-C接口的建立过程或F1-C接口的更新过程中将小区归属的跟踪区信息发送给CU，格式为小区信息以及小区归属的跟踪区信息。
本步骤中，DU可以将小区归属的跟踪区信息携带在F1 SETUP REQUEST消息和/或GNB-DU CONFIGURATION UPDATE消息等消息中发送给CU。例如，在F1 SETUP REQUEST消息的服务小区信息(Served Cell Information)字段中携带小区归属的跟踪区信息。
在一实施例中，还可以将跟踪区支持的网络切片信息发送给CU。
步骤702、CU接收小区归属的跟踪区信息，根据小区归属的跟踪区信息确定小区归属的网络切片信息。
本步骤中，由于CU和DU通过配置获知跟踪区支持的网络切片，或者CU接收到跟踪区支持的网络切片信息，因此，根据接收到的跟踪区信息以及归属跟踪区的小区信息，CU可以间接获得DU侧小区归属的网络切片信息。
具体的，小区归属的网络切片即为小区归属的跟踪区支持的网络切片。
步骤703、CU将小区归属的网络切片信息保存到CU支持的网络切片信息中，并触发NG接口的建立流程或更新流程，在NG接口的建立流程或更新流程中将小区归属的网络切片信息发送给5G核心网网元。
第三实施例
本实施例中，DU将DU侧小区归属的网络切片信息发送给CU，小区归属的网络切片信息的格式为网络切片信息以及归属网络切片的小区信息。
参见图8，该方法包括：
步骤800、DU通过网管为每一个小区配置对应的网络切片。
步骤801、DU触发F1-C接口的建立过程或F1-C接口的更新过程，在F1-C接口的建立过程或F1-C接口的更新过程中将小区归属的网络切片信息发送给CU，格式为网络切片信息以及归属网络切片的小区信息。
本步骤中，DU可以将小区归属的网络切片信息携带在F1 SETUP REQUEST消息和/或GNB-DU CONFIGURATION UPDATE消息等消息中发送给CU。例如，在F1 SETUP REQUEST消息的网络切片信息字段携带归属网络切片的小区信息。
步骤802、CU接收小区归属的网络切片信息，将小区归属的网络切片信息保存到CU支持的网络切片信息中，并触发NG接口的建立流程或更新流程，在NG接口的建立流程或更新流程中将小区归属的网络切片信息发送给5G核心网网元。
第四实施例
本实施例中，DU将DU侧小区归属的网络切片信息发送给CU，小区归属的网络切片信息的格式为小区信息以及小区归属的网络切片信息。
参见图9，该方法包括：
步骤900、DU通过网管为每一个小区配置对应的网络切片。
步骤901、DU触发F1-C接口的建立过程或F1-C接口的更新过程，在F1-C接口的建立过程或F1-C接口的更新过程中将小区归属的网络切片信息发送给CU，格式为小区信息以及小区归属的网络切片信息。
本步骤中，DU可以将小区归属的网络切片信息携带在F1 SETUP REQUEST消息和/或GNB-DU CONFIGURATION UPDATE消息等消息中发送给CU。
作为一种示例，在F1 SETUP REQUEST消息的Served Cell Information字段中携带小区归属的网络切片信息。
步骤902、CU接收小区归属的网络切片信息，将小区归属的网络切片信息保存到CU支持的网络切片信息中，并触发NG接口的建立流程或更新流程，在NG接口的建立流程或更新流程中将小区归属的网络切片信息发送给5G核心网网元。
第五实施例
本实施例中，CU将DU侧小区归属的网络切片信息发送给DU。
参见图10、该方法包括：
步骤1000、CU通过网管配置DU侧小区归属的网络切片信息。
步骤1001、CU将DU侧小区归属的网络切片信息发送给DU。
本步骤中，CU可以通过F1-C接口建立响应消息或F1-C接口更新配置消息(gNB-CU configuration Update)将DU侧小区归属的网络切片信息发送给DU。例如，CU可以在F1-C接口建立响应消息中的被激活的小区列表项(Cells to be Activated List Item)字段中携带DU侧小区归属的网络切片信息。
步骤1002、DU接收小区归属的网络切片信息，将小区归属的网络切片信息保存到小区信息中。
第六实施例
本实施例中，CU将归属DU上的终端的数据无线承载归属的网络切片信息发送给DU。
参见图11，该方法包括：
步骤1100、CU为归属DU上的终端建立数据无线承载，并确定数据无线承载归属的网络切片信息。
本步骤中，例如，CU从5G核心网接收到数据连接会话资源设置请求(PDU SESSION RESOURCE SETUP REQUEST)消息时，将数据连接会话映射到DU上需要建立的DRB。由于PDU session归属的网络切片和DRB归属的网络切片必须一致，因此，CU在建立数据无线承载的过程中将PDU session归属的网络切片配置给DU上需要建立的DRB。
步骤1101、CU将归属DU上的终端的数据无线承载归属的网络切片信息发送给DU。
本步骤中，CU可以通过用户设备上下文设置(UE Context Setup)流程或UE上下文修改(UE Context Modification)流程中的用户设备上下文建立请求(UE CONTEXT SETUP REQUEST)消息，用户设备上下文修改请求(UE CONTEXT MODIFICATION REQUEST)消息等消息将数据无线承载归属的网络切片信息发送给DU。例如，可以在UE CONTEXT SETUP REQUEST消息的需要建立的数据无线承载项(DRB to Be Setup Item IEs)字段中携带数据无线承载归属的网络切片信息。
步骤1102、DU将终端的数据无线承载归属的网络切片信息保存到终端的上下文中。
参见图12，本申请实施例提出了一种第一网元，包括：发送模块，配置为向第二网元发送网络切片配置信息，以使第二网元保存网络切片配置信息对应的网络切片信息。
在一实施例中，所述第一网元还包括：获取模块，配置为获取所述网络切片配置信息。
在一实施例中，所述网络切片配置信息包括以下至少之一：网络切片信息、小区归属的网络切片信息、终端的数据无线承载归属的网络切片信息、小区归属的跟踪区信息、跟踪区支持的网络切片信息。
在一实施例中，所述网络切片信息包括以下至少之一：网络切片标识、网络切片集合、网络切片类型。
在一实施例中，所述终端的数据无线承载归属的网络切片和所述数据无线承载对应的数据连接会话归属的网络切片相同。
参见图13，本申请实施例还提出了一种第二网元，包括：
接收模块，配置为接收第一网元的网络切片配置信息；
存储模块，配置为保存所述网络切片配置信息对应的网络切片信息。
在一实施例中，所述网络切片配置信息包括以下至少之一：网络切片信息、小区归属的网络切片信息、终端的数据无线承载归属的网络切片信息、小区归属的跟踪区信息、跟踪区支持的网络切片信息。
在一实施例中，所述网络切片信息包括以下至少之一：网络切片标识、网络切片集合、网络切片类型。
在一实施例中，所述终端的数据无线承载归属的网络切片和所述数据无线承载对应的数据连接会话归属的网络切片相同。
在一实施例中，所述网络切片配置信息包括小区归属的跟踪区信息；
所述存储模块配置为：根据所述小区归属的跟踪区信息和跟踪区支持的网络切片信息确定小区归属的网络切片信息，将所述小区归属的网络切片信息保存到小区信息或所述第二网元支持的网络切片信息中。
在一实施例中，所述网络切片配置信息包括小区归属的网络切片信息；
所述存储模块配置为：将所述小区归属的网络切片信息保存到小区信 息中或所述第二网元支持的网络切片信息中。
在一实施例中，所述网络切片配置信息包括终端的数据无线承载归属的网络切片信息；
所述存储模块配置为：将所述网络切片配置信息保存到所述终端的上下文中。
参见图14，本申请实施例提出了一种第一网元，包括第一处理器和用于存储能够在第一处理器上运行的计算机程序的第一存储器，所述第一处理器用于运行所述计算机程序时，执行本申请实施例中应用于第一网元的网络切片配置方法的步骤。
参见图15，本申请实施例提出了一种第二网元，包括第二处理器和用于存储能够在第二处理器上运行的计算机程序的第二存储器，所述第二处理器用于运行所述计算机程序时，执行本申请实施例中应用于第二网元的网络切片配置方法的步骤。
本申请实施例还提出了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例应用于第一网元或第二网元中的网络切片配置方法的步骤。
可以理解，存储器(第一存储器和/或第二存储器)可以是易失性存储器或非易失性存储器，也可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(ROM，Read Only Memory)、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁 盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本发明实施例描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
上述本发明实施例揭示的方法可以应用于处理器中，或者由处理器实现。处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成前述方法的步骤。
可以理解，本申请实施例中的第一网元还可以包括第一通信模块，配置为发送信息，如网络切片配置信息。
可以理解，本申请实施例中的第二网元还可以包括第二通信模块，配置为接收信息，如网络切片配置信息。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本发明上述集成的单元如果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，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种网络切片配置方法，包括：
    第一网元向第二网元发送网络切片配置信息，以使所述第二网元保存所述网络切片配置信息对应的网络切片信息。
  2. 根据权利要求1所述的网络切片配置方法，其中，该方法之前还包括：所述第一网元获取所述网络切片配置信息。
  3. 根据权利要求1或2所述的网络切片配置方法，其中，所述网络切片配置信息包括以下至少之一：
    网络切片信息、小区归属的网络切片信息、终端的数据无线承载归属的网络切片信息、小区归属的跟踪区信息、跟踪区支持的网络切片信息。
  4. 根据权利要求3所述的网络切片配置方法，其中，所述网络切片信息包括以下至少之一：网络切片标识、网络切片集合、网络切片类型。
  5. 根据权利要求3所述的网络切片配置方法，其中，所述终端的数据无线承载归属的网络切片和所述数据无线承载对应的数据连接会话归属的网络切片相同。
  6. 一种网络切片配置方法，包括：
    第二网元接收第一网元的网络切片配置信息；
    第二网元保存所述网络切片配置信息对应的网络切片信息。
  7. 根据权利要求6所述的网络切片配置方法，其中，所述网络切片配置信息包括以下至少之一：
    网络切片信息、小区归属的网络切片信息、终端的数据无线承载归属的网络切片信息、小区归属的跟踪区信息、跟踪区支持的网络切片信息。
  8. 根据权利要求7所述的网络切片配置方法，其中，所述网络切片信息包括以下至少之一：网络切片标识、网络切片集合、网络切片类型。
  9. 根据权利要求7所述的网络切片配置方法，其中，所述终端的数据 无线承载归属的网络切片和所述数据无线承载对应的数据连接会话归属的网络切片相同。
  10. 根据权利要求6至9任一项所述的网络切片配置方法，其中，所述网络切片配置信息包括小区归属的跟踪区信息；
    所述第二网元保存所述网络切片配置信息对应的网络切片信息包括：
    所述第二网元根据所述小区归属的跟踪区信息和跟踪区支持的网络切片信息确定小区归属的网络切片信息，将所述小区归属的网络切片信息保存到小区信息或所述第二网元支持的网络切片信息中。
  11. 根据权利要求6至9任一项所述的网络切片配置方法，其中，所述网络切片配置信息包括小区归属的网络切片信息；
    所述第二网元保存所述网络切片配置信息对应的网络切片信息包括：
    所述第二网元将所述小区归属的网络切片信息保存到小区信息中或所述第二网元支持的网络切片信息中。
  12. 根据权利要求6至9任一项所述的网络切片配置方法，其中，所述网络切片配置信息包括终端的数据无线承载归属的网络切片信息；
    所述第二网元保存所述网络切片配置信息对应的网络切片信息包括：
    所述第二网元将所述网络切片配置信息保存到所述终端的上下文中。
  13. 一种第一网元，包括：
    发送模块，配置为向第二网元发送网络切片配置信息，以使第二网元保存所述网络切片配置信息对应的网络切片信息。
  14. 根据权利要求13所述的第一网元，其中，所述网元还包括：获取模块，配置为获取所述网络切片配置信息。
  15. 一种第二网元，包括：
    接收模块，配置为接收第一网元的网络切片配置信息；
    存储模块，配置为保存所述网络切片配置信息对应的网络切片信息。
  16. 一种第一网元，包括第一处理器和用于存储能够在第一处理器上运行的计算机程序的第一存储器，所述第一处理器用于运行所述计算机程序时，执行权利要求1至5任一项所述方法的步骤。
  17. 一种第二网元，包括第二处理器和用于存储能够在第二处理器上运行的计算机程序的第二存储器，所述第二处理器用于运行所述计算机程序时，执行权利要求6至12任一项所述方法的步骤。
  18. 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至5任一项所述的网络切片配置方法的步骤，或者，所述计算机程序被处理器执行时实现如权利要求6至12任一项所述的网络切片配置方法的步骤。
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