WO2018036349A1 - 一种无线接入网络切片选择方法和装置 - Google Patents

一种无线接入网络切片选择方法和装置 Download PDF

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Publication number
WO2018036349A1
WO2018036349A1 PCT/CN2017/095495 CN2017095495W WO2018036349A1 WO 2018036349 A1 WO2018036349 A1 WO 2018036349A1 CN 2017095495 W CN2017095495 W CN 2017095495W WO 2018036349 A1 WO2018036349 A1 WO 2018036349A1
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Prior art keywords
base station
secondary base
slice
primary
ran slices
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PCT/CN2017/095495
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English (en)
French (fr)
Inventor
杨立
李大鹏
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中兴通讯股份有限公司
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Priority to EP17842772.0A priority Critical patent/EP3506718B1/en
Publication of WO2018036349A1 publication Critical patent/WO2018036349A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • 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

Definitions

  • the present application relates to, but is not limited to, the field of communication technologies, and in particular, to a radio access network slice selection method and apparatus.
  • 5G mobile network Utilize 5G mobile network, virtual reality, high-definition video and other services with ultra-high data transmission rate requirements, or car network unmanned, telemedicine surgery and other services with low latency and ultra-reliable transmission service requirements, as well as small IoT terminals
  • UE User Equipment
  • the traditional communication network for a more limited application scenario uses a simple architecture of a single radio access network plus a core network function curing configuration. This architecture cannot meet the application requirements and performance requirements of all scenarios. If a dedicated network is built for each scenario to meet customized application requirements and performance requirements, a large amount of infrastructure or spectrum resources will be wasted.
  • NFV Network Function Virtualization
  • the network slicing technology of the core network and the radio access network is based on a general physical infrastructure (including computing resources, storage resources, transmission resources, etc.), logically defining and dividing the functions of the network, and forming an end-to-end virtual network slice.
  • NFV can achieve decoupling of software and hardware.
  • Network infrastructure equipment providers no longer need to provide dedicated and application-restricted hardware resources for different customer objects, but can use NFV and software-defined networks (SDN, Software).
  • SDN software-defined networks
  • Defined Network technology, introducing the concept of customer tenants, on the same infrastructure, for different tenant groups Divide resources to achieve isolation and use of resources between tenants.
  • a network slice divides a physical network into multiple virtual logical networks, and each virtual network corresponds to a different application scenario. That is, a physical network is cut into multiple virtual end-to-end networks, each of which includes network devices, access, transmission, and core networks. These parts are logically independent, and any virtual network occurs. Failures will not affect other virtual networks. Each virtual network has different features and features for different needs and services.
  • Embodiments of the present invention are directed to a radio access network slice selection method and apparatus, which selects a suitable network slice in a secondary base station adjacent to a primary base station, so that the terminal UE can perform primary service network slice and secondary base station with the primary base station.
  • the secondary service network slice performs multi-connection data transmission operations to obtain better data transmission effects.
  • an embodiment of the present invention provides a radio access network slice selection method, which is applied to a primary base station in a radio access network, where the method includes:
  • the primary base station and the adjacent secondary base station in the radio access network respectively establish an end-to-end correspondence between the network slice and the core network, and determine, according to the end-to-end correspondence of the network slice, the primary base station and the adjacent secondary base station.
  • Radio access network slice RAN Slices information
  • the primary base station establishes a priority matching association relationship with the RAN Slices in the neighboring secondary base station according to the radio access network slice RAN Slices information;
  • a secondary base station receives, by the primary base station, a secondary base station add/modify reply message sent by the target secondary base station, and performing a multi-connection data transmission configuration on the terminal UE by using a radio resource control RRC message; where the secondary base station adds/modifies a reply message Include the target secondary base station according to the priority The target secondary service RAN Slices that match the association selection.
  • the primary base station establishes a priority matching relationship with the RAN Slices in the neighboring secondary base station according to the radio access network slice RAN Slices information, including:
  • the RAN Slices serving as the primary service in the primary base station and the RAN Slices serving as the secondary services in the neighboring secondary base stations perform information coordination through a common procedure of the interface between the base stations, and exchange RAN Slices segmentation information and working status;
  • the primary base station determines a target secondary base station from the neighboring secondary base station according to the local condition and the radio resource management RRM measurement result and the slice identifier slice ID information reported by the terminal UE, and adds the secondary base station. And sending, to the target secondary base station, the modification request message and the priority matching association relationship, including:
  • the primary base station triggers a multi-connection data transmission establishment/modification decision according to the local condition and the received RRM measurement result and the Slice ID information reported by the terminal UE, and determines the target secondary base station;
  • the primary base station sends a secondary base station add/modify request message to the target secondary base station through the inter-base station inter-node interface.
  • the primary base station triggers a multi-connection data transmission establishment/modification decision according to the local condition and the received RRM measurement result and the Slice ID information reported by the terminal UE, and determines the target secondary base station, including :
  • the primary base station performs a multi-connection data transmission operation according to the local conditions and the received RRM measurement result and the Slice ID information reported by the terminal UE, and determines that the adjacent secondary base station that satisfies the data offload condition is the target secondary base station.
  • the embodiment of the present invention further provides a radio access network slice selection method, which is applied to a secondary base station adjacent to a primary base station in a radio access network, where the method includes:
  • the secondary base station adjacent to the primary base station and the primary base station in the radio access network are respectively constructed with the core network End-to-end correspondence of the network slice, determining radio access network slice RAN Slices information in the primary base station and the neighboring secondary base station according to the end-to-end correspondence of the network slice;
  • the neighboring secondary base station determines an RAN Slices priority matching association relationship established by the primary base station according to the radio access network slice RAN Slices information;
  • Target secondary base station Determining, by the target secondary base station, a target secondary base station selected by the primary base station, where the target secondary base station receives a secondary base station add/modify request message sent by the primary base station, and the priority matching association relationship;
  • the target secondary base station determines the target secondary service RAN Slices by using the priority matching association relationship according to the local condition and the secondary base station add/modify request message, and sends the secondary base station add/modify reply message to the primary base station.
  • the secondary base station add/modify reply message includes the target secondary service RAN Slices selected by the target secondary base station according to the priority matching association relationship.
  • the neighboring secondary base station determines an RAN Slices priority matching association relationship with the primary base station according to the radio access network slice RAN Slices information, including:
  • the RAN Slices used as the secondary service in the adjacent secondary base station and the RAN Slices used as the primary service in the primary base station perform information coordination through the common process of the interface between the base stations, and exchange RAN Slices split information and working status;
  • the target secondary base station determines the target secondary service RAN Slices by using the priority matching association relationship according to the local condition and the secondary base station add/modify request message, and sends the secondary base station add/modify reply message to
  • the primary base station includes:
  • the secondary base station receives, by the target secondary base station, the secondary base station add/modify request message sent by the primary base station, and using the priority matching association relationship to start from the RAN Slices with the highest priority requested by the primary base station, select;
  • the target secondary base station sends a secondary base station add/modify reply message to the inter-base node interface to a primary base station; wherein the secondary base station add/modify reply message includes the target secondary service RAN Slices.
  • the target secondary base station determines the target secondary service RAN Slices by using the priority matching association relationship according to the local condition and the secondary base station add/modify request message, including:
  • the target secondary base station selects the target secondary service RAN Slices according to the Slice ID or the MDD information.
  • the embodiment of the present invention further provides a radio access network slice selection apparatus, which is applied to a primary base station in a radio access network, where the apparatus includes: a first determining module, a matching module, and a first sending module, a first receiving module and a configuration module; wherein
  • the first determining module is configured to establish an end-to-end correspondence between the neighboring base station and the core network respectively, and determine, according to the end-to-end correspondence of the network slice, the primary base station and the neighboring secondary base station.
  • the matching module is configured to establish, according to the radio access network slice RAN Slices information, a priority matching association relationship with the RAN Slices in the neighboring secondary base station;
  • the first determining module is further configured to determine a target secondary base station from the neighboring secondary base stations according to local conditions of the primary base station and RRM measurement results and slice ID information reported by the terminal UE;
  • the first sending module is configured to send the secondary base station add/modify request message and the priority matching association relationship to the target secondary base station;
  • the first receiving module is configured to receive a secondary base station add/modify reply message sent by the target secondary base station, where the secondary base station add/modify reply message includes the target secondary base station according to the priority matching association Target secondary service RAN Slices for relationship selection;
  • the configuration module is configured to perform multi-connection data transmission configuration on the terminal UE by using a radio resource control RRC message.
  • the apparatus further includes: a first collaboration module; wherein
  • the first cooperation module is configured to be a common flow of an RAN Slices serving as a primary service in the primary base station and a RAN Slices serving as a secondary service in the adjacent secondary base station through an interface between the base stations Process information coordination, exchange RAN Slices segmentation information and working status;
  • the matching module is configured to establish a priority matching association relationship between the primary service RAN Slices and the secondary service RAN Slices according to the result of the information cooperation and a preset rule.
  • the first determining module is configured to trigger a multi-connection data transmission establishment/modification decision according to the local condition of the primary base station and the received RRM measurement result and the Slice ID information reported by the terminal UE. Determining the target secondary base station;
  • the first sending module is configured to send a secondary base station add/modify request message to the target secondary base station by using an inter-node inter-node interface according to the multi-connection data transmission establishment/modification decision.
  • the device further includes: a trigger module; wherein
  • the triggering module is configured to receive the RRM measurement result and the slice ID information reported by the terminal UE, and trigger the decision of the primary base station to establish/modify the multi-connection data transmission;
  • the first determining module is configured to perform a multi-connection data transmission operation according to the local condition of the primary base station and the received RRM measurement result and the Slice ID information reported by the terminal UE, and determine an adjacent auxiliary that meets the data offload condition.
  • the base station is the target secondary base station.
  • the embodiment of the present invention further provides a radio access network slice selection apparatus, which is applied to a secondary base station adjacent to a primary base station in a radio access network, where the apparatus includes: a second determining module, and a second receiving a module and a second sending module; wherein
  • the second determining module is configured to establish an end-to-end correspondence between the network segment and the core network and the core network, and determine, according to the end-to-end correspondence of the network slice, the primary base station and the neighboring secondary base station.
  • the second receiving module is configured to: when the secondary base station is the target secondary base station, receive a secondary base station add/modify request message sent by the primary base station, and the priority matching association relationship;
  • the second determining module is further configured to determine, according to the local condition of the target secondary base station and the secondary base station add/modify request message, the target secondary service RAN Slice by using the priority matching association relationship;
  • the second sending module is further configured to send a secondary base station add/modify reply message to the primary base station, where the secondary base station add/modify reply message includes the target secondary base station matching the association relationship according to the priority Selected target secondary services RAN Slices.
  • the device further includes: a second collaboration module; wherein
  • the second cooperation module is configured to perform RAN Slices serving as a secondary service in the adjacent secondary base station and RAN Slices serving as a primary service in the primary base station to perform information coordination through a common procedure of the interface between the base station nodes, and exchange RAN Slices segmentation information. And working status;
  • the second determining module is configured to determine a priority matching association relationship between the secondary service RAN Slices and the primary serving RAN Slices established by the primary base station according to the information cooperation result and the preset rule.
  • the apparatus further includes: a selection module; wherein
  • the selecting module is configured to receive the secondary base station add/modify request message sent by the primary base station, and use the priority matching association relationship to request a priority from the primary base station according to the local condition of the secondary base station The highest RAN Slice starts making selections;
  • the second determining module is configured to determine that the RAN slice with the highest priority that satisfies the local condition is the target secondary service RAN Slice;
  • the second sending module is configured to send a secondary base station add/modify reply message to the primary base station by using the inter-base station inter-node interface, where the secondary base station add/modify reply message includes the target secondary service RAN Slice.
  • the selecting module is configured to: when the priority matching association relationship includes only the Slice ID or the multi-dimensional attribute description identifier MDD information reported by the terminal UE, the target secondary base station is configured according to the Slice ID or the MDD information. Select the target secondary service RAN Slices.
  • the embodiment of the present invention further provides a computer readable storage medium, where computer executable instructions are stored, and the computer executable instructions are executed by a processor to implement the wireless access network slice selection method of the first aspect. .
  • the embodiment of the present invention further provides a computer readable storage medium, where computer executable instructions are stored, and the computer executable instructions are executed by a processor to implement the wireless access network slice selection method of the second aspect. .
  • the embodiment of the present invention provides a radio access network slice selection method and apparatus.
  • the primary base station According to the RRM measurement result and the slice ID information reported by the terminal UE, the primary base station sends the multi-connection data transmission configuration request information to the adjacent secondary base station, and the adjacent secondary base station. Determining, by the configuration request of the primary base station and the local condition, the selection of the secondary service RAN slice, the primary base station performs multi-connection data transmission configuration on the terminal UE according to the selection information of the secondary service RAN slice slice, so that the terminal UE is in the radio access network
  • the optimal slice set of multiple base station nodes can better adapt the type, user and service characteristics of the terminal UE, and obtain better data transmission effect.
  • FIG. 1 is a schematic diagram of relationship matching between a UE and a RAN/CN slice in a single-connection data transmission mode according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a multi-connection data transmission working mode according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for selecting a radio access network slice for multi-connection data transmission according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic diagram 1 of connection between a core network and a base station of a radio access network according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic diagram 2 of a connection between a core network and a base station of a radio access network according to Embodiment 2 of the present invention
  • FIG. 6 is a schematic diagram 3 of connection between a core network and a base station of a radio access network according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic flowchart 1 of a method for selecting a radio access network slice for multi-connection data transmission according to Embodiment 3 of the present invention.
  • FIG. 8 is a second schematic flowchart of a method for selecting a radio access network slice for multi-connection data transmission according to Embodiment 3 of the present invention.
  • FIG. 9 is a schematic flowchart 3 of a method for selecting a radio access network slice for multi-connection data transmission according to Embodiment 3 of the present invention.
  • FIG. 10 is a schematic diagram of wireless access network slice selection for multi-connection data transmission according to Embodiment 3 of the present invention. Diagram 4 of the method flow;
  • FIG. 11 is a schematic flowchart 1 of a method for selecting a radio access network slice for multi-connection data transmission according to Embodiment 4 of the present invention.
  • FIG. 12 is a second schematic flowchart of a method for selecting a radio access network slice for multi-connection data transmission according to Embodiment 4 of the present invention.
  • FIG. 13 is a schematic flowchart 3 of a method for selecting a radio access network slice for multi-connection data transmission according to Embodiment 4 of the present invention.
  • FIG. 14 is a schematic flowchart of a radio access network slice selection method for multi-connection data transmission according to Embodiment 5 of the present invention.
  • FIG. 15 is a schematic structural diagram 1 of a radio access network slice selection apparatus for multi-connection data transmission according to Embodiment 6 of the present invention.
  • FIG. 16 is a second schematic structural diagram of a radio access network slice selection apparatus for multi-connection data transmission according to Embodiment 6 of the present invention.
  • FIG. 17 is a schematic structural diagram 1 of a radio access network slice selection apparatus for multi-connection data transmission according to Embodiment 7 of the present invention.
  • FIG. 18 is a second schematic structural diagram of a radio access network slice selection apparatus for multi-connection data transmission according to Embodiment 7 of the present invention.
  • Figure 1 shows the architecture of a mobile network slice.
  • the core network CN has a common (initial default) slice Common/Default CN Slice and three three proprietary slices Dedicated CN Slice (C1, C2, C3), which correspond to Different operator tenants;
  • the radio access network RAN has a common (initial default) slice Common/Default RAN slice and three three proprietary sliced Dedicated RAN slices (A1, A2, A3), which correspond to different data services.
  • Type for example: type A1 is ultra-high-speed data service, video service, virtual reality, etc.; type A2 is burst small packet data service, such as QQ, WeChat, etc.; type A3 is low-latency ultra-reliable data service, such as car networking Unmanned Driving, telemedicine, etc.
  • Each terminal UE user can report the best matching network slice (RAN Part of NW Slice) by reporting its own MDD type attribute, and further enable the CN according to the subscription information and type of the terminal UE user.
  • the data transmission service obtained by the UE usually does not have the service provided by the proprietary slice customization, so it is weak in data transmission function and performance.
  • the terminal UE can establish and maintain multiple wireless connection RLs with multiple communication base stations at the same time, and simultaneously perform uplink and downlink transmission of control plane/user plane data and related control feedback.
  • the multi-connection data transmission mode there is usually only one master anchor base station (or simply the primary base station) and multiple auxiliary offload base stations (or sub-base stations for short); the primary base station is mainly responsible for establishing maintenance, release, etc. of the entire multi-connection operation.
  • the control plane function, and the secondary base station is mainly responsible for the function of offloading and forwarding of related user plane data, so that the data stream that can only be transmitted between the primary base station and the terminal UE can be split and transmitted in multiple wireless data connections RL, which can be more Fully and efficiently balance the use of good air resources, airspace, time domain, frequency domain, etc.
  • 3GPP 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced
  • DC Dual Connectivity
  • the DC function enables a single user equipment terminal (UE) to perform wireless connection and uplink and downlink user services with two LTE serving base station (Master Evolved Node B, MeNB) and secondary Evolved Node B (SeNB). Transceiver transmission and transmission of data.
  • the LTE/LTE-A system of the 3GPP standard specification further introduces the LTE and WLAN Aggregation (LWA) functions in the Rel-13 version, that is, the aggregation of radio resources between the LTE system and the WLAN system at the radio access layer.
  • LWA function enables the single terminal UE UE to simultaneously perform wireless transmission and transmission and transmission of uplink and downlink user service data with the LTE serving base station primary base station MeNB and the WLAN secondary base station WT.
  • the combination of extension and mashup can generate a "multi-connection data transmission mode" with more RL connections, that is, simultaneous connection communication between the terminal UE and two or more serving base station nodes.
  • a multi-connection data transmission mode of operation in a mobile communication system.
  • the one-way thin arrow line in Fig. 2 indicates the transmission of control signaling
  • the two-way thick arrow line indicates the transmission of user service data.
  • the terminal UE needs to perform reasonable RAN SLICE slice selection with each base station node participating in the coordinated offloading, so that the terminal UE can enjoy better slice service not only in the single-connection data transmission working mode, In the multi-connection data transmission mode of operation, you can also enjoy better slice services.
  • an embodiment of the present invention provides a radio access network slice selection method, where the method includes:
  • the primary base station and the adjacent secondary base station in the S101, the core network, and the radio access network construct an end-to-end matching association relationship of the network slice through the interface common process.
  • the end-to-end matching and association of the network slice is performed by the core network and all base stations under its jurisdiction to form a partition matching association between the core network and the radio access network, wherein the core network slice is CN Slices.
  • the radio access network is sliced into RAN Slices. As the slices are divided, the network functions and network resource configurations corresponding to each slice are also determined.
  • the radio access network base station nodes notify each other and coordinate their respective real-time RAN slice splitting and working states through a common signaling procedure, including the RAN Slice information currently included in the base station node, and whether the working states of the respective RAN slices are normal. As well as the load status and so on.
  • the primary base station sets a priority association relationship between its own internal RAN slice and the secondary base RAN slice.
  • the primary base station BS1 has three Dedicated Master RAN Slices (DMA1, DMA2, DMA3) and one Common/Default Master RAN Slice (CMA), and one of its neighboring secondary base stations has two Dedicated Secondary RAN Slices (DSA1). DSA2) and a Common/Default Secondary RAN Slice (CSA), then the primary base station needs to be constructed and/or modified in advance, such as the following legal and Relationship table of priority association matching information:
  • DMA1- ⁇ DSA1 first priority
  • DSA2 second priority
  • CSA third priority
  • DMA1 in the primary base station is preferred to be associated with DSA1 to form a multi-connection data transmission operation; It is DSA2, CSA.
  • DMA2- ⁇ DSA2 (first priority), CSA (second priority), DSA1 (third priority) ⁇ indicating that DMA2 in the primary base station is preferred to match with DSA2 to form a multi-connection data transmission operation; It is CSA, DSA1.
  • DMA3- ⁇ CSA (first priority), DSA1 (second priority) ⁇ , indicates that the DMA3 preference in the primary base station is matched with the CSA to form a multi-connection data transmission operation; secondly, DSA1.
  • the CMA- ⁇ CSA (first priority) ⁇ indicates that the CMA preference in the primary base station is matched with the CSA to form a multi-connection data transmission operation, and cannot be associated with other RAN slices in the secondary base station.
  • the terminal UE reports the RRM measurement result and the slice ID information to the primary base station in the radio access network.
  • the terminal UE reports the radio resource management (RRM) measurement result to the primary base station, and triggers the establishment or modification of the multi-connection data transmission operation by the primary base station.
  • RRM radio resource management
  • the primary base station in the radio access network determines the target secondary base station according to its own local condition and the RRM measurement result and the Slice ID information reported by the terminal UE.
  • the primary base station In the process of establishing and maintaining a multi-connection data transmission operation for the terminal UE, the primary base station needs to transmit the foregoing “relationship table of priority association matching information” to the secondary base station through a dedicated signaling procedure between the base station nodes.
  • the primary base station may also use the slice ID or MDD information of the currently serving terminal UE as the relationship table of the priority association matching information. "Transmitted to the secondary base station.
  • the "relationship table of priority association matching information" is sent to the secondary base station as a selection reference for the secondary service RAN SLICE slice.
  • "priority association match information” When the relationship table includes only the slice ID or MDD information of the terminal UE, there is no problem of priority selection on the secondary base station side, and the matching selection is performed according to the unique slice ID or MDD information sent from the primary base station.
  • the primary base station sends the secondary base station add/modify request message to the target neighboring secondary base station by using the inter-base station inter-node interface.
  • the secondary base station add/modify request message sent by the primary base station through the inter-base station interface, including the information related to the current primary base station primary service RAN SLICE slice and the secondary service RAN SLICE slice priority matching associated with the primary base station, and the target neighboring auxiliary
  • the base station performs other configuration related information of the multi-connection operation, and the above information also includes the case where only the unique slice ID or MDD information is included.
  • the target neighboring secondary base station selects the secondary service RAN slice slice according to its own local condition and the configuration request of the primary base station.
  • the target neighboring secondary base station is based on the above-mentioned "relationship table of priority association matching information", which also includes the case where only the unique slice ID or MDD information is included, and selects the corresponding secondary base station RAN Slice for the terminal UE according to its own local condition. Considering the highest priority, if the slice condition and the working state are appropriate, it is selected as the secondary base station RAN Slice of the terminal UE; otherwise, according to the priority, the subsequent RAN Slice is selected as the matching association. If the "relationship table of priority association matching information" includes Slice ID or MDD information, the matching selection is directly performed according to the unique Slice ID or MDD information.
  • the neighboring secondary base station sends a secondary base station add/modify reply message to the primary base station by using an interface between the base station nodes.
  • the secondary base station will finally match the selected secondary base station RAN slice result, including the slice identifier, the slice ID or the MDD information, and notify the primary base station through a dedicated signaling procedure between the base station nodes, and then the primary base station establishes for the terminal UE through the air interface process. Maintain multi-connection data transfer operations.
  • the UE and the primary base station are associated with the highest priority RAN slice as well as the highest priority RAN slice matching on the secondary base station.
  • the primary base station receives the secondary base station add/modify reply message, and configures the terminal UE to perform a multi-connection data transmission operation by using the air interface RRC message.
  • the terminal UE can perform corresponding multi-connection data transmission configuration to implement multi-connection data transmission of the terminal UE.
  • NG-Core Next Generation Core
  • eLTE eNB eLTE eNB
  • NR gNB1 NR gNB2
  • NG-Core is divided into enhanced bandwidth data transmission services (eMBB, Enhanced Mobile Broadband), ultra-reliable low-latency communication (URLLC), and massive amount of machine type Internet of Things.
  • Three core network slices (MT Slice) for terminal communication mMTC, Massive Machine Type Communication
  • mMTC Massive Machine Type Communication
  • NG-Core Slice1 NG-Core Slice2
  • NG-Core Slice3 Three core network slices (MT Slice) for terminal communication
  • mMTC Massive Machine Type Communication
  • the eLTE eNB with the largest coverage of the wireless signal serves as the primary base station, and does not perform any configuration division of the dedicated radio access network slice (Dedicated RAN Slice) internally, that is, there is only one common radio access network slice (Common/Default RAN Slice).
  • the NR gNB1 with small wireless signal coverage can be used as a secondary base station for data offloading.
  • the internal configuration and division of a Common/Default RAN Slice and three Dedicated RAN Slices respectively correspond to eMBB, URLLC, and mMTC services.
  • the NR gNB2 with smaller wireless signal coverage can be used as another secondary base station for data offloading.
  • the internal configuration and division of a Common/Default RAN Slice and two Dedicated RAN Slices respectively correspond to two types of services: eMBB and mMTC (so NR gNB2 cannot Efficient support for URLLC-type services);
  • UE1 enters the common coverage area of the respective service signals of the eLTE eNB, NR gNB1 and NR gNB2 base stations at a certain time, and therefore has wireless conditions for doing multi-link data transmission.
  • the eLTE eNB, the NR gNB1 and the NR gNB2 are base stations in the NG-RAN, and the interface between the NG-Core and the NG-RAN is NG1.
  • the three core network slices in the NG-Core are respectively connected to the three base stations eLTE eNB, NR gNB1 and NR gNB2 in the NG-RAN through NG1.
  • the CMA in Figure 4 is a Common/Default Master RAN, which is a public network slice in the primary base station, and supports all legal types of services and terminals.
  • CSA is Common/Default Secondary RAN Slice, which is a public network slice in the secondary base station, supports all legal types of services and terminals.
  • the DSA is a Dedicated Secondary RAN Slice, which is a proprietary network slice in a secondary base station that supports specific types of services and terminals in order to provide customized and optimized data transmission services.
  • DSA2/3/4 corresponds to eMBB, URLLC, and mMTC, respectively.
  • DSA5/6 corresponds to eMBB and mMTC.
  • the steps for radio access network slice selection in the case of multi-connection data transmission are as follows:
  • CN-RAN Slice Info Exchange of the NG1 standardized interface between the NG-Core and the eLTE eNB, the NR gNB1, the NR gNB2 base station, the core network and all the base stations under its jurisdiction perform end-to-end construction matching and association of the network slice. , forming the divisional matching and association of their respective public or proprietary CN Slices/RAN Slices.
  • the primary base station eNB and the secondary base stations gNB1, gNB2 perform the associated primary and secondary services RAN Slices information coordination and priority matching association, so that the primary base station eNB
  • the RAN slice configuration and division inside the neighboring secondary base stations gNB1, gNB2 can be learned.
  • the primary base station eNB can determine a specific priority matching association relationship between the RAN Slices in the adjacent secondary base station and its own RAN Slices.
  • the UE1 reports the RRM measurement result and the Slice ID information of the target serving cell of the secondary base station, and triggers the establishment or modification of the multi-connection data transmission operation by the primary base station eNB, as the UE1 is moved or the wireless environment conditions are changed.
  • the primary base station eNB determines to perform a multi-connection data transmission operation based on the RRM measurement report result and local conditions of the UE1, and selects gNB1 as the target serving secondary base station to perform data offloading.
  • the primary base station eNB sends the secondary node add/modify request message to the secondary base station gNB1 through the Xnew interface between the base stations, including the primary service RAN SLICE slice CMA of the UE1 in the current serving primary base station eNB and the secondary service RAN associated with it.
  • the SLICE slice priority matches the associated information (which can be expressed with a specific logical identifier) as follows:
  • CMA- ⁇ DSA2 (eMBB first priority), CSA1 (second priority), DSA3 (URLLC third priority), DSA4 (mMTC fourth priority) ⁇ , also includes secondary base station gNB1 to do multiple connections Other configuration related information for the operation.
  • the secondary service RAN SLICE slice is selected according to the configuration request and the local condition of the primary base station eNB, and the highest priority is requested from the primary base station eNB.
  • the RAN SLICE slice is selected and finally decided to provide DSA2 (eMBB first priority) as a secondary service RAN SLICE slice participating in the multi-connection.
  • the secondary base station gNB1 sends a secondary base station add/modify response message to the primary base station eNB through the Xnew interface between the base stations, including the secondary service RAN SLICE slice information DSA2 selected by the secondary base station gNB1, and other configurations for doing multiple connection operations. Reply to relevant information.
  • the primary base station eNB After receiving the analysis of the Secondary Node Addition/Modification Response, the primary base station eNB confirms that the configuration information of all the multi-connection operations provided by the secondary base station gNB1 can be accepted, and the terminal UE 1 performs the multi-connection data transmission operation through the air interface RRC message (re) configuration. The UE 1 then performs a dual connectivity eMBB type data transmission operation based on the CMA primary serving RAN SLICE slice within the eNB and the DSA2 secondary service RAN SLICE slice within the gNB1.
  • the NG-Core is divided into three CN slices, eMBB, URLLC, and mMTC, and the NR gNB1 with the largest wireless coverage is used as the primary base station.
  • the internal configuration and division of a Common/Default RAN Slice and three Dedicated RANs are performed.
  • Slice which corresponds to eMBB, URLLC, and mMTC services respectively;
  • eLTE eNBs with smaller wireless signal coverage can be used as secondary base stations for data offloading, internally configured and divided into a Common/Default RAN Slice and a Dedicated RAN Slice, corresponding to eMBB.
  • Class service; NR gNB2 with small wireless signal coverage can be used as another secondary base station for data offloading.
  • UE2 enters the common coverage area of the respective service signals of the eLTE eNB, NR gNB1 and NR gNB2 base stations, and thus has a radio condition for doing multi-link data transmission.
  • the DMA in Figure 5 is the Dedicated Master RAN Slice, a proprietary network slice in the primary base station that supports specific types of services and terminals in order to provide customized and optimized data transmission services.
  • the steps for radio access network slice selection in the case of multi-connection data transmission are as follows:
  • the core network and all the base stations under its jurisdiction perform end-to-end construction matching and association of the network slice. Form division matching and association of respective public or proprietary CN Slices/RAN Slices.
  • the primary base station gNB1 and the secondary base station eNB, gNB2 perform the correlation and priority matching association of the already constructed primary and secondary services RAN Slices, so that the primary base station gNB1 can learn The neighboring secondary base station eNB, RAN slice configuration and division inside gNB2. Based on the result of the above-described RAN Slice Info coordination, the primary base station gNB1 can determine a specific priority matching association relationship between the RAN Slices in the adjacent secondary base station and its own RAN Slices.
  • the UE2 reports the RRM measurement result and the Slice ID information of the target serving cell of the secondary base station, and triggers the establishment or modification of the multi-connection data transmission operation by the primary base station gNB1, as the UE2 is moved or the wireless environment conditions are changed.
  • the primary base station gNB1 decides to perform a multi-connection data transmission operation based on the RRM measurement report result and the local condition of the UE2, and selects gNB2 as the target serving secondary base station to perform data offloading.
  • the primary base station gNB1 is sent to the secondary base station gNB2 Add/Modify Request message Secondary Node Addition/Modification Request through the Xnew interface between the base stations, including the primary service RAN SLICE slice DMA3 of the UE2 in the current serving primary base station gNB1 and the secondary service RAN associated therewith.
  • the SLICE slice priority matches the associated information (which can be expressed with a specific logical identifier) as follows:
  • DMA3- ⁇ DSA6 URLLC first priority
  • CSA2 second priority
  • DSA5 eMBB third priority
  • other configuration related information for the secondary base station gNB2 to perform multiple connection operations.
  • the secondary base station gNB2 After receiving the parsing add/modify request message Secondary Node Addition/Modification Request, the secondary base station gNB2 makes a selection of the secondary service RAN SLICE slice according to the configuration request of the primary base station gNB1 and the local condition, and the highest priority requested from the primary base station gNB1.
  • the RAN SLICE slice is selected and finally decided to provide DSA6 (URLLC first priority) as a secondary service RAN SLICE slice participating in the multi-connection.
  • DSA6 URLLC first priority
  • the secondary base station gNB2 sends the secondary base station add/modify response message to the primary base station gNB1 through the Xnew interface between the base stations, and includes the secondary service RAN SLICE slice information DSA6 selected by the secondary base station gNB2 and other configurations of the multiple connection operation. Reply to relevant information.
  • the primary base station gNB1 After receiving the analysis of the Secondary Node Addition/Modification Response, the primary base station gNB1 confirms that the configuration information of all the multi-connection operations provided by the secondary base station gNB2 can be accepted, and the terminal UE 2 performs the multi-connection data transmission operation through the air interface RRC message (re). The UE 2 then performs a dual connectivity URLLC class data transmission operation based on the DMA3 primary serving RAN SLICE slice in gNB1 and the DSA6 secondary service RAN SLICE slice in gNB2.
  • the NG-Core is divided into three CN slices, eMBB, URLLC, and mMTC, and the NR gNB2 with the largest wireless coverage is used as the primary base station.
  • the internal configuration and division of a Common/Default RAN Slice and two Dedicated RANs are performed. Slice, which corresponds to eMBB and URLLC respectively; the eLTE eNB with smaller wireless signal coverage can be used as the secondary base station for data offloading.
  • the internal configuration and division of a Common/Default RAN Slice and two Dedicated RAN Slices respectively correspond to eMBB.
  • NR gNB1 with smaller wireless signal coverage can be used as another secondary base station for data offloading, internally configured and divided into a Common/Default RAN Slice and three Dedicated RAN Slices, corresponding to eMBB, URLLC, mMTC
  • the steps for radio access network slice selection in the case of multi-connection data transmission are as follows:
  • the core network and all the base stations under its jurisdiction perform end-to-end construction matching and association of the network slice.
  • the primary base station gNB2 and the secondary base station eNB, gNB1 have been constructed.
  • the primary and secondary services RAN Slices information coordination and priority matching association, so that the primary base station gNB2 can learn the neighboring secondary base station eNB, RAN slice configuration and division inside gNB1.
  • the primary base station gNB2 can determine a specific priority matching association relationship between the RAN Slices in the adjacent secondary base station and its own RAN Slices.
  • the UE3 reports the RRM measurement result and the Slice ID information of the target serving cell of the secondary base station, and triggers the establishment or modification of the multi-connection data transmission operation by the primary base station gNB2, as the UE3 is moved or the wireless environment conditions are changed.
  • the primary base station gNB2 determines to perform a multi-connection data transmission operation based on the RRM measurement report result and the local condition of the UE3, and selects the eNB and the gNB1 to simultaneously perform data splitting as the target serving secondary base station.
  • the primary base station gNB2 is sent to the secondary base station eNB and the gNB1 add/modify request message (Secondary Node Addition/Modification Request) through the Xnew interface between the base stations, and includes the primary service RAN SLICE slice DMA2 of the UE3 in the current serving primary base station gNB2 and the auxiliary associated with it.
  • the service RAN SLICE slice priority matches the associated information (which can be expressed with a specific logical identifier) as follows:
  • DMA2- ⁇ DSA7 (eMBB first priority), CSA3 (second priority) ⁇ , also includes configuration related information for other secondary base station eNBs to perform multiple connection operations.
  • DMA2- ⁇ DSA4 eMBB first priority
  • CSA2 second priority
  • other configuration related information that the secondary base station gNB1 performs multiple connection operations.
  • the secondary service RAN SLICE slice is selected according to the configuration request and the local condition of the primary base station gNB2, and is requested from the primary base station gNB2.
  • the highest priority RAN SLICE slice begins to be selected.
  • the eNB decides to provide DSA7 (eMBB first priority) as the secondary service RAN SLICE slice participating in the multi-connection. Since the DSA4 (eMBB first priority) slice in gNB1 is overloaded, Therefore gNB1 decides to provide CSA2 (second priority) as a secondary service RAN SLICE slice participating in the multi-connection.
  • the secondary base station eNB and the gNB1 respectively send the secondary base station add/modify reply message to the primary base station gNB2 through the Xnew interface between the base stations, the Secondary Node Addition/Modification.
  • the Response includes the secondary service RAN SLICE slice information DSA7 and CSA2 selected by the secondary base station eNB and the gNB1, and other configuration reply related information of each of the multiple connection operations.
  • the primary base station gNB2 After receiving the analysis of the Secondary Node Addition/Modification Response, the primary base station gNB2 confirms that the configuration information of all the multi-connection operations provided by the secondary base station eNB and the gNB1 can be accepted, and the terminal UE 3 performs the multi-connection data transmission operation through the air interface RRC message (re) configuration. . The UE3 then performs a three-connect eMBB-type data transmission operation based on the DMA2 primary serving RAN SLICE slice in gNB2 and the DSA7 secondary service RAN SLICE slice in the intra-eNB, and the CSA2 secondary service RAN SLICE slice in gNB1.
  • the fourth embodiment is used to select a network slice for the neighboring secondary base station according to the unique slice ID or MDD value reported by the UE4.
  • NG-Core is divided into three types: eMBB, URLLC, and mMTC.
  • the NR gNB1 with the largest wireless coverage is used as the primary base station.
  • the internal configuration is divided into a Common/Default RAN Slice and three Dedicated RAN Slices.
  • eLTE eNB with small wireless signal coverage can be used as a secondary base station for data offloading, internally configured and divided into a Common/Default RAN Slice and a Dedicated RAN Slice, corresponding to eMBB services
  • the NR gNB2 with smaller signal coverage can be used as another secondary base station for data offloading.
  • the internal configuration and division of a Common/Default RAN Slice and two Dedicated RAN Slices respectively correspond to eMBB and URLLC two types of services; UE4 enters at a certain moment.
  • the steps for radio access network slice selection in the case of multi-connection data transmission are as follows:
  • the core network and all the base stations under its jurisdiction perform end-to-end construction matching and association of the network slice. Form division matching and association of respective public or proprietary CN Slices/RAN Slices.
  • the primary base station gNB1 and the secondary base station eNB, gNB2 have been constructed.
  • the primary and secondary services RAN Slices information coordination and priority matching are associated, so that the primary base station gNB1 can learn the neighboring secondary base station eNB, RAN slice configuration and division inside gNB2.
  • the primary base station gNB1 can determine a specific priority matching association relationship between the RAN Slices and the own RAN Slices in the adjacent secondary base station, and determine that only RAN Slices of the same type/tenant between the primary and secondary base stations can be determined.
  • the association can be matched and therefore based only on a unique Slice ID or MDD value.
  • the UE4 reports the RRM measurement result and the Slice ID information of the target serving cell of the secondary base station, and triggers the establishment or modification of the multi-connection data transmission operation by the primary base station gNB1, as the UE4 moves or the wireless environment conditions change.
  • the primary base station gNB1 determines to perform a multi-connection data transmission operation based on the RRM measurement report result and the local condition of the UE4, and selects the gNB2 as the target serving secondary base station to perform data offloading.
  • the primary base station gNB1 is sent to the secondary base station gNB2 Add/Modify Request message Secondary Node Addition/Modification Request through the Xnew interface between the base stations, including the primary service RAN SLICE slice DMA3 of the UE4 in the current serving primary base station gNB1 and the secondary service RAN associated therewith.
  • SLICE slice priority matching association information can be expressed by the unique slice ID or MDD value reported by UE4), as follows:
  • DMA2- ⁇ DSA5 (eMBB uniquely matches the associated secondary RAN slice) ⁇ , and also includes other configuration related information for the secondary base station gNB2 to perform multiple connection operations.
  • the secondary base station gNB2 After receiving the parsing add/modify request message Secondary Node Addition/Modification Request, the secondary base station gNB2 selects the secondary service RAN SLICE slice according to the configuration request and the local condition of the primary base station gNB1, and selects the unique matching candidate requested by the primary base station gNB1.
  • DSA5 acts as a secondary service RAN SLICE slice that participates in multi-connection.
  • the secondary base station gNB2 sends the secondary base station add/modify response message to the primary base station gNB1 through the Xnew interface between the base stations, and includes the secondary service RAN SLICE slice information DSA5 selected by the secondary base station gNB2 and other configurations for doing multiple connection operations. Reply to relevant information.
  • the primary base station gNB1 After receiving the analysis of the Secondary Node Addition/Modification Response, the primary base station gNB1 confirms that it can accept configuration information of all multi-connection operations provided by the secondary base station gNB2.
  • the multi-connection data transmission operation is performed by the air interface RRC message (re) configuration terminal UE4.
  • the UE 4 then performs a dual connectivity eMBB type data transmission operation based on the DMA2 primary serving RAN SLICE slice in gNB1 and the DSA5 secondary service RAN SLICE slice in gNB2.
  • an embodiment of the present invention provides a radio access network slice selection method, which is applied to a primary base station in a radio access network, where the method includes:
  • the primary base station and the neighboring secondary base station in the radio access network respectively establish an end-to-end correspondence between the network slice and the core network, and determine the wireless connection between the primary base station and the adjacent secondary base station according to the end-to-end correspondence of the network slice.
  • Intranet slice RAN Slices information
  • the radio access network slice RAN Slices can be divided into public and proprietary network slices. It can be divided into public network slices and private network slices within the primary base station, as well as public network slices and proprietary network slices within the secondary base station.
  • the radio access network slice RAN Slices After the radio access network slice RAN Slices is determined, its corresponding network function and network resource configuration are also determined.
  • the end-to-end correspondence of network slices is constructed.
  • the end-to-end data transmission direction is generally from the network source node that generates the service data to the network end node that receives the service data.
  • the primary base station establishes a priority matching association relationship with the RAN Slices in the neighboring secondary base station according to the radio access network slice RAN Slices information.
  • step S202 includes steps S2021 and S2022:
  • the RAN Slices serving as the primary service in the primary base station and the RAN Slices serving as the secondary services in the secondary base station adjacent thereto perform information coordination through the common procedure of the interface between the base stations, and exchange RAN Slices segmentation information and working status.
  • S2022 Establish a priority matching association relationship between the primary service RAN Slices and the secondary service RAN Slices according to the result of the information cooperation and a preset rule.
  • the network slice RAN Slices in the primary base station serves as a primary service slice
  • the network slice RAN Slices in the secondary base station adjacent thereto serves as a secondary service slice.
  • the primary service and the secondary service network slice notify each other through the common signaling process and coordinate the division status and working status of the respective real-time RAN Slices to ensure normal working interaction between them.
  • the primary base station constructs a priority matching association with the network slice RAN Slices in the secondary base station in advance
  • the priority matching association relationship is used for each network slice in the primary base station to select a priority level order when the network slice in the secondary base station forms a multi-connection data transmission operation, and generates a “priority association matching information according to the priority matching association relationship. Relationship table.”
  • the primary base station determines, according to its own local condition, the radio resource management RRM measurement result and the slice identifier slice ID information reported by the terminal UE, the target secondary base station from the neighboring secondary base station, and adds the secondary base station add/modify request message to the The priority matching association is sent to the target secondary base station.
  • step S203 includes steps S2031 and S2032:
  • the primary base station triggers a multi-connection data transmission establishment/modification decision according to its own local condition and the received RRM measurement result and the Slice ID information reported by the terminal UE, and determines the target secondary base station.
  • the primary base station sends the secondary base station add/modify request message to the target secondary base station through the inter-base station inter-node interface.
  • step S2031 includes steps S20311 and S20312:
  • the primary base station receives the RRM measurement result and the slice ID information reported by the terminal UE, and triggers the decision of the primary base station to perform establishment/modification of the multi-connection data transmission.
  • the primary base station performs a multi-connection data transmission operation according to the local condition of the local terminal and the received RRM measurement result and the slice ID information reported by the terminal UE, and determines that the adjacent secondary base station that satisfies the data offload condition is the target secondary base station.
  • the access state of the terminal UE in the base station changes due to a change in the mobile line or the wireless environment condition of the terminal UE. Therefore, the primary base station performs a multi-connection data transmission establishment/modification decision for the terminal UE according to the RRM measurement result and the slice ID information of the terminal UE and its own local condition, and divides a part of the task amount in the network slice of the primary base station to the target.
  • the terminal UE is in a connection state with the optimal slice set of the plurality of radio access network base station nodes in the multi-connection transmission working mode, where the target secondary base station may be one or more auxiliary devices adjacent to the primary base station. Base station.
  • main service RAN Slices and secondary service RAN Slices different types, different users and different service features of the terminal UE can be better adapted, so that the terminal UE obtains better data transmission effect.
  • the local conditions of the primary base station include its current individual Conditions such as the division of the RAN slice, whether the working state is normal, the load status, and the resource usage rate.
  • the primary base station transmits a “relationship table of priority association matching information” to the target secondary base station, and the target secondary base station may add/modify the secondary base station according to the secondary base station.
  • the message selects a better network slice in its own right to match the data transmission task of the host station.
  • the primary base station receives the secondary base station add/modify reply message sent by the target secondary base station, and performs multi-connection data transmission configuration on the terminal UE by using the radio resource control RRC message.
  • the secondary base station add/modify reply message includes the foregoing.
  • the target secondary base station matches the target secondary service RAN Slices selected according to the priority.
  • the secondary base station add/modify reply message sent by the target secondary base station to the primary base station includes the RAN slice result finally selected by the target secondary base station, including the slice identifier, the slice ID, or the MDD information.
  • the primary base station is informed by a proprietary signaling procedure between the base station nodes, and the primary base station establishes or maintains a multi-connection data transmission operation for the terminal UE through the air interface process.
  • the UE and the primary base station are associated with the highest priority RAN slice as well as the highest priority RAN slice matching on the secondary base station.
  • the RAN slice that normally triggers the UE to match the associated eNB on the secondary base station also changes. Conversely, if the UE matches the associated RAN Slice on the secondary base station, the UE may not change the matching RAN Slice on the primary base station.
  • the terminal UE can establish a multi-connection data transmission operation with the same type or the RAN slice of the tenant, or can establish multiple connections with different types or tenant RAN slices.
  • the embodiment of the present invention provides a radio access network slice selection method for multi-connection data transmission.
  • the primary base station sends the multi-connection data transmission configuration request information to the adjacent secondary base station.
  • the neighboring secondary base station performs the selection of the secondary service RAN slice slice according to the configuration request of the primary base station and the local condition, and the primary base station performs multi-connection data transmission configuration on the terminal UE according to the selection information of the secondary service RAN slice slice, so that the terminal UE is in the wireless state
  • the optimal slice set of multiple base station nodes in the access network can better adapt to the type, user and service characteristics of the terminal UE, and obtain better data transmission effects.
  • an embodiment of the present invention provides a radio access network slice selection method, which is applied to a secondary base station adjacent to a primary base station in a radio access network, where the method includes:
  • the secondary base station and the primary base station adjacent to the primary base station in the radio access network respectively establish an end-to-end correspondence between the network slice and the core network, and determine the wireless in the primary base station and the adjacent secondary base station according to the end-to-end correspondence of the network slice.
  • Access network slice RAN Slices information
  • the radio access network slice RAN Slices can be divided into public and proprietary network slices. It can be divided into public network slices and private network slices within the primary base station, as well as public network slices and proprietary network slices within the secondary base station. After the radio access network slice RAN Slices is determined, its corresponding network function and network resource configuration are also determined.
  • the neighboring secondary base station determines an RAN Slices priority matching association relationship with the primary base station according to the radio access network slice RAN Slices information.
  • step S302 includes steps S3021 and S3022:
  • the RAN Slices serving as the secondary service in the neighboring secondary base station, and the RAN Slices serving as the primary service in the primary base station perform information coordination through the common procedure of the interface between the base stations, and exchange RAN Slices split information and working status.
  • S3022 Determine a priority matching association relationship between the secondary service RAN Slices and the primary service RAN Slices established by the result that the primary base station cooperates according to the information and the preset rule.
  • the network slice RAN Slices in the primary base station serves as a primary service slice
  • the network slice RAN Slices in the secondary base station adjacent thereto serves as a secondary service slice.
  • the primary service and the secondary service network slice notify each other through the common signaling process and coordinate the division status and working status of the respective real-time RAN Slices to ensure normal working interaction between them.
  • the primary base station constructs a priority matching association relationship with the network slice RAN Slices in the secondary base station in advance, and the priority matching association relationship is used when each network slice in the primary base station selects a network slice in the secondary base station to form a multi-connection data transmission operation
  • the priority ranking is performed, and a “relationship table of priority association matching information” is generated according to the priority matching association relationship.
  • S303 Determine a target secondary base station selected by the primary base station in the neighboring secondary base station, where the target secondary base station receives the secondary base station add/modify request message sent by the primary base station and associates with the priority matching. system.
  • the target secondary base station receives the secondary base station add/modify request message sent by the primary base station, where the message includes the primary service RAN Slices and the secondary service RAN Slices of the terminal UE in the primary base station.
  • Level matching associations may also actively establish a priority matching association relationship, but usually the primary base station serving as the anchor control source actively establishes a priority matching association relationship.
  • the target secondary base station determines, according to its own local condition and the secondary base station add/modify request message, the target secondary service RAN Slices by using the priority matching association relationship, and sends the secondary base station add/modify reply message to the primary base station; wherein, the secondary base station The add/modify reply message includes the target secondary service RAN Slices selected by the target secondary base station according to the priority matching association relationship.
  • step S304 includes steps S3041 to S3043:
  • the target secondary base station receives the secondary base station add/modify request message sent by the primary base station, and uses its own local condition to start selection by using the priority matching association relationship from the RAN Slices with the highest priority requested by the primary base station.
  • S3042 Determine that the RAN Slices with the highest priority satisfying the local condition are the target secondary service RAN Slices.
  • the target secondary base station sends a secondary base station add/modify reply message to the primary base station by using the inter-base station inter-node interface, where the secondary base station add/modify reply message includes the target secondary service RAN Slices.
  • the priority matching association may include only the Slice ID or the multi-dimensional attribute description identifier MDD information reported by the terminal UE. Since the specific slice ID or MDD information can reflect the current service characteristics of the specific terminal UE, the primary base station may be a special example.
  • the slice ID or MDD information of the terminal UE currently being served is included in the priority matching association relationship (for example, the “relationship table of priority association matching information”), and is sent to the secondary base station through the dedicated signaling process as a secondary service slice. Selected reference. At this time, the secondary base station does not have the problem of priority selection, and the matching selection is performed according to the unique Slice ID or MDD information sent from the primary base station.
  • step S304 further includes:
  • the target secondary base station selects the target secondary service RAN Slices according to the Slice ID or MDD information.
  • the target secondary base station After receiving the secondary base station add/modify request message sent by the primary base station, the target secondary base station determines the target secondary service RAN Slice according to its own local condition and the priority matching association relationship. After the target secondary service RAN slice is selected, the target secondary base station sends a secondary base station add/modify reply message including the target secondary service RAN slice to the primary base station, so that the primary base station learns the slice selection of the target secondary base station.
  • the secondary base station add/modify reply message includes other configuration reply related information including a multi-connection operation in addition to the target secondary service RAN Slice.
  • the local conditions of the adjacent secondary base station include conditions such as the division of the current RAN slices, whether the working status is normal, the load status, and the resource usage rate.
  • the embodiment of the present invention provides a radio access network slice selection method for multi-connection data transmission.
  • the primary base station sends the multi-connection data transmission configuration request information to the adjacent secondary base station.
  • the neighboring secondary base station performs the selection of the secondary service RAN slice slice according to the configuration request of the primary base station and the local condition, and the primary base station performs multi-connection data transmission configuration on the terminal UE according to the selection information of the secondary service RAN slice slice, so that the terminal UE is in the wireless state
  • the optimal slice set of multiple base station nodes in the access network can better adapt to the type, user and service characteristics of the terminal UE, and obtain better data transmission effects.
  • an embodiment of the present invention provides a radio access network slice selection method, which is applied to a terminal UE, where the method includes:
  • the terminal UE reports the RRM measurement result and the slice ID information to the primary base station in the radio access network.
  • the RRM can provide the service quality guarantee for the terminal UE in the network, and the terminal UE reports the RRM measurement result and the slice ID information to the primary base station, which can trigger the establishment or modification of the multi-connection data transmission operation by the primary base station, so that the network traffic is enabled.
  • the terminal UE receives a multi-connection data transmission configuration message sent by the primary base station in the radio access network.
  • the primary base station After the terminal UE reports the RRM measurement result and the Slice ID information to the primary base station, the primary base station performs a multi-connection data transmission operation judgment according to the RRM measurement result and the Slice ID information and its own local condition, and selects the target secondary base station for the terminal UE. After the target secondary base station selects the optimal network slice, the primary base station sends the multi-connection data transmission configuration message to the terminal UE, and then the terminal UE can slice with the primary service network slice of the primary base station and the secondary service network in the target secondary base station. Perform multi-connection data transfer operations.
  • a radio access network slice selection device 15 is provided.
  • the device 15 is applied to a primary base station in a radio access network, and the device includes: a first determining module 1501. a matching module 1502, a first sending module 1503, a first receiving module 1504, and a configuration module 1505; wherein
  • the first determining module 1501 is configured to establish an end-to-end correspondence between the neighboring base station and the core network respectively, and determine the primary base station and the neighboring secondary base station according to the end-to-end correspondence of the network slice.
  • the matching module 1502 is configured to establish, according to the radio access network slice RAN Slices information, a priority matching association relationship with the RAN Slices in the neighboring secondary base station;
  • the first determining module 1501 is further configured to determine a target secondary base station from the neighboring secondary base stations by using a local condition of the primary base station and an RRM measurement result and a slice ID information reported by the terminal UE;
  • the first sending module 1503 is configured to send, to the target secondary base station, a secondary base station add/modify request message and the priority matching association relationship;
  • the first receiving module 1504 is configured to receive a secondary base station add/modify reply message sent by the target secondary base station, where the secondary base station add/modify reply message includes the target secondary base station matching according to the priority Target secondary service RAN Slices for association selection;
  • the configuration module 1505 is configured to perform multi-connection data transmission configuration on the terminal UE by using a radio resource control RRC message.
  • the apparatus further includes: a first collaboration module; wherein
  • the first cooperation module 1505 is configured to perform information cooperation and exchange between the RAN Slices used as the primary service in the primary base station and the RAN Slices used as secondary services in the neighboring secondary base stations through a common process of the interface between the base stations.
  • RAN Slices splits information and working status;
  • the matching module 1502 is configured to establish a priority matching association relationship between the primary service RAN Slices and the secondary service RAN Slices according to the result of the information cooperation and a preset rule.
  • the first determining module 1501 is configured to trigger a multi-connection data transmission establishment/modification decision according to the local condition of the primary base station and the received RRM measurement result and the Slice ID information reported by the terminal UE, and determine Target secondary base station;
  • the first sending module 1503 is configured to send a secondary base station add/modify request message to the target secondary base station by using an inter-node inter-node interface according to the multi-connection data transmission establishment/modification decision.
  • the device further includes: a trigger module 1507; wherein
  • the triggering module 1507 is configured to receive the RRM measurement result and the slice ID information reported by the terminal UE, and trigger the decision of the primary base station to perform multi-connection data transmission establishment/modification;
  • the first determining module 1501 is configured to perform a multi-connection data transmission operation by using the local condition of the primary base station and the received RRM measurement result and the Slice ID information reported by the terminal UE, and determine the neighboring auxiliary that meets the data offload condition.
  • the base station is the target secondary base station.
  • the description of the radio access network slice selection apparatus applied to the multi-connection data transmission of the primary base station in the radio access network according to the embodiment of the present invention may refer to the radio access network slice selection method of the multi-connection data transmission in the third embodiment.
  • the description of the embodiments of the present invention is omitted here.
  • the first determining module 1501, the matching module 1502, the first sending module 1503, the first receiving module 1504, the configuration module 1505, the first collaboration module 1506, and the triggering module 1507 may all be located in multiple connection data.
  • the embodiment of the present invention provides a radio access network slice selection apparatus for multi-connection data transmission.
  • the primary base station sends the multi-connection data transmission configuration request information to the adjacent secondary base station.
  • the neighboring secondary base station performs the selection of the secondary service RAN slice slice according to the configuration request of the primary base station and the local condition, and the primary base station performs multi-connection data transmission configuration on the terminal UE according to the selection information of the secondary service RAN slice slice, so that the terminal UE is in the wireless state
  • the optimal slice set of multiple base station nodes in the access network can better adapt to the type, user and service characteristics of the terminal UE, and obtain better data transmission effects.
  • a radio access network slice selecting apparatus 17 for multi-connection data transmission is shown, where the apparatus 17 is applied to a secondary base station adjacent to a primary base station in a radio access network.
  • the device includes: a second determining module 1701, a second receiving module 1702, and a second sending module 1703; wherein
  • the second determining module 1701 is configured to establish, by the secondary base station and the primary base station, an end-to-end correspondence between the network slice and the core network, and determine the primary base station and the neighbor according to the end-to-end correspondence of the network slice.
  • the second receiving module 1702 is configured to: when the secondary base station is the target secondary base station, receive a secondary base station add/modify request message sent by the primary base station and the priority matching association relationship;
  • the second determining module 1701 is further configured to determine, according to the local condition of the target secondary base station and the secondary base station add/modify request message, the target secondary service RAN Slice by using the priority matching association relationship;
  • the second sending module 1703 is further configured to send a secondary base station add/modify reply message to the primary base station, where the secondary base station add/modify reply message includes the target secondary base station according to the priority matching association
  • the target auxiliary service RAN Slices for relationship selection is further configured to send a secondary base station add/modify reply message to the primary base station, where the secondary base station add/modify reply message includes the target secondary base station according to the priority matching association.
  • the apparatus further includes: a second collaboration module 1704; wherein
  • the second cooperation module 1704 is configured to perform RAN Slices in a neighboring secondary base station as a secondary service and RAN Slices used as a primary service in a primary base station to perform information coordination through a common procedure of an interface between base station nodes, and exchange RAN Slices. Information and working status;
  • the second determining module 1701 is configured to determine a priority matching association relationship between the secondary service RAN Slices and the primary serving RAN Slices established by the primary base station according to the information cooperation result and the preset rule.
  • the apparatus further includes: a selection module 1705; wherein
  • the selecting module 1705 is configured to receive the secondary base station add/modify request message sent by the primary base station, and use the priority matching association relationship to request the priority from the primary base station according to the local conditions of the secondary base station.
  • the highest level RAN Slice begins to make selections;
  • the second determining module 1701 is configured to determine that the RAN slice with the highest priority that satisfies the local condition is the target secondary service RAN Slice;
  • the second sending module 1703 is configured to send, by using an inter-node inter-node interface, a secondary base station add/modify reply message to the primary base station, where the secondary base station add/modify reply message includes the target secondary service RAN slice.
  • the selecting module 1705 is configured to: when the priority matching association relationship includes only the Slice ID or the multi-dimensional attribute description identifier MDD information reported by the terminal UE, the target secondary base station selects a target according to the Slice ID or the MDD information. Auxiliary service RAN Slices.
  • the description of the radio access network slice selection apparatus applied to the multi-connection data transmission of the secondary base station adjacent to the primary base station in the radio access network according to the embodiment of the present invention may refer to the radio access of the multi-connection data transmission in the fourth embodiment.
  • the description of the network slice selection method is not described herein again.
  • the second determining module 1701, the second receiving module 1702, the second sending module 1703, the second cooperation module 1704, and the selecting module 1705 may each be configured by the radio access network slice selecting device 17 located in the multi-connection data transmission.
  • the radio access network slice selecting device 17 located in the multi-connection data transmission.
  • the CPU, MPU, DSP, or FPGA implementation In the CPU, MPU, DSP, or FPGA implementation.
  • the embodiment of the invention provides a radio access network slice selection device for multi-connection data transmission, and the main base station sends multiple connections according to the RRM measurement result and the slice ID information reported by the terminal UE.
  • the data transmission configuration request information is sent to the neighboring secondary base station, and the neighboring secondary base station selects the secondary service RAN slice slice according to the configuration request of the primary base station and the local condition, and the primary base station performs the terminal UE according to the selection information of the secondary service RAN slice slice.
  • the multi-connection data transmission configuration enables the terminal UE to be in an optimal slice set of multiple base station nodes in the radio access network, which can better adapt the type, user and service characteristics of the terminal UE, and obtain better data transmission effect. .
  • the embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, and when the computer executable instructions are executed by the processor, the wireless access network slice selection method as described in FIG. 7 to FIG. 10 is implemented.
  • the embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by the processor to implement a wireless access network slice selection method as shown in FIGS. 11-14.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the application can take the form of a hardware embodiment, a software embodiment, or an embodiment in combination with software and hardware. Moreover, embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • the embodiment of the present invention provides a radio access network slice selection method and apparatus.
  • the primary base station According to the RRM measurement result and the slice ID information reported by the terminal UE, the primary base station sends the multi-connection data transmission configuration request information to the adjacent secondary base station, and the adjacent secondary base station. Determining, by the configuration request of the primary base station and the local condition, the selection of the secondary service RAN slice, the primary base station performs multi-connection data transmission configuration on the terminal UE according to the selection information of the secondary service RAN slice slice, so that the terminal UE is in the radio access network
  • the optimal slice set of multiple base station nodes can better adapt the type, user and service characteristics of the terminal UE, and obtain better data transmission effect.

Abstract

一种无线接入网络切片选择方法和装置，方法包括：无线接入网中的主基站和相邻辅基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定主基站与相邻辅基站中的无线接入网切片RAN Slices信息；主基站根据无线接入网切片RAN Slices信息，建立与相邻辅基站中RAN Slices的优先级匹配关联关系；主基站根据自身的本地条件和终端UE上报的无线资源管理RRM测量结果和切片标识Slice ID信息从相邻辅基站中确定目标辅基站，并将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站；主基站接收目标辅基站发送的辅基站添加/修改回复消息，并通过无线资源控制RRC消息对终端UE进行多连接数据传输配置。

Description

一种无线接入网络切片选择方法和装置 技术领域
本申请涉及但不限于通信技术领域，尤指一种无线接入网络切片选择方法和装置。
背景技术
在当今全面信息化的时代，各行各业的业务数据传输应用需求呈现出爆发式的增长，和传统的3G与4G移动通信系统相比，5G系统面向的应用场景差异性非常大。在未来5G移动网络中，不仅仅需要提供人与人之间的通信，还要为各式各样的物联网海量设备提供各式各样的服务。利用5G移动网络，虚拟现实、高清视频等有超高数据传输速率需求的业务，或者车联网无人驾驶，远程医疗手术等有着低延时超可靠传输服务需求的业务，以及在小型物联网终端(UE，User Equipment)的密集度方面，与移动网络相比，在传输速率、单用户上下行速率、端到端的时延、以及每平方米能够接入的终端UE数量等方面都会有巨大的提升。
传统的面向较有限应用场景的通信网络采用的是单一的无线接入网加上核心网功能固化配置的简单架构，采用这种架构无法满足所有场景的应用需求和性能需求。而如果为每一种场景都建设专网以满足定制的应用需求和性能需求，会造成大量的基础设施或者频谱资源的浪费。网络功能虚拟化(NFV，Network Function Virtualization)技术的发展，使得运营商可以为不同的业务需求构建不同的虚拟网络成为可能。核心网和无线接入网的网络切片技术就是基于通用物理基础设施(包括计算资源，存储资源，传输资源等)，对网络进行逻辑上的功能定义和划分，形成端到端的虚拟网络切片。每个虚拟网络切片具备不同的功能性能特点，来动态的满足各种各样的业务需求和商业模式。NFV可以实现软件和硬件的解耦，网络基础设备设施提供商不再需要为不同的客户对象，提供专用的且应用受限的硬件资源，而是可以借助于NFV和软件定义网络(SDN，Software Defined Network)技术，引入客户租户的概念，在同一基础设施上，为不同租户群 进行资源划分，实现租户间的资源和使用隔离。
网络切片将一个物理网络分成多个虚拟的逻辑网络，每一个虚拟网络对应不同的应用场景。也就是说，将一个物理网络切割成多个虚拟的端到端的网络，每个虚拟网络之间包括网络的设备、接入、传输和核心网，这些部分是逻辑独立的，任何一个虚拟网络发生故障都不会影响到其他虚拟网络。每个虚拟网络都具备不同的功能特点，面向不同的需求和服务。
发明概述
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例期望提供一种无线接入网络切片选择方法和装置，在与主基站相邻的辅基站中选择合适的网络切片，使终端UE能够与主基站的主服务网络切片和辅基站的辅服务网络切片进行多连接数据传输操作，获得更佳的数据传输效果。
第一方面，本发明实施例提供了一种无线接入网络切片选择方法，应用于无线接入网中的主基站，所述方法包括：
无线接入网中的主基站和相邻辅基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站与所述相邻辅基站中的无线接入网切片RAN Slices信息；
所述主基站根据所述无线接入网切片RAN Slices信息，建立与所述相邻辅基站中RAN Slices的优先级匹配关联关系；
所述主基站根据自身的本地条件和终端UE上报的无线资源管理RRM测量结果和切片标识Slice ID信息从所述相邻辅基站中确定目标辅基站，并将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站；
所述主基站接收所述目标辅基站发送的辅基站添加/修改回复消息，并通过无线资源控制RRC消息对所述终端UE进行多连接数据传输配置；其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级 匹配关联关系选择的目标辅服务RAN Slices。
在一实施方式中，所述主基站根据所述无线接入网切片RAN Slices信息，建立与所述相邻辅基站中RAN Slices的优先级匹配关联关系，包括：
所述主基站中用作主服务的RAN Slices和所述相邻辅基站中用作辅服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
根据所述信息协同的结果和预设的规则建立所述主服务RAN Slices与所述辅服务RAN Slices间的优先级匹配关联关系。
在一实施方式中，所述主基站根据自身的本地条件和终端UE上报的无线资源管理RRM测量结果和切片标识Slice ID信息从所述相邻辅基站中确定目标辅基站，并将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站，包括：
所述主基站根据自身的本地条件和接收到的终端UE上报的RRM测量结果与Slice ID信息，触发多连接数据传输建立/修改的决策，确定所述目标辅基站；
根据多连接数据传输建立/修改的决策，所述主基站通过基站节点间接口将辅基站添加/修改请求消息发送至所述目标辅基站。
在一实施方式中，所述主基站根据自身的本地条件和接收到的终端UE上报的RRM测量结果与Slice ID信息，触发多连接数据传输建立/修改的决策，确定所述目标辅基站，包括：
所述主基站接收所述终端UE上报的RRM测量结果和Slice ID信息，触发所述主基站进行多连接数据传输建立/修改的决策；
所述主基站根据自身的本地条件和接收到的所述终端UE上报的RRM测量结果和Slice ID信息进行多连接数据传输操作，确定满足数据分流条件的相邻辅基站为所述目标辅基站。
第二方面，本发明实施例还提供了一种无线接入网络切片选择方法，应用于无线接入网中与主基站相邻的辅基站，所述方法包括：
无线接入网中与主基站相邻的辅基站和所述主基站分别与核心网构建 网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站和所述相邻辅基站中的无线接入网切片RAN Slices信息；
所述相邻辅基站确定与所述主基站根据所述无线接入网切片RAN Slices信息建立的RAN Slices优先级匹配关联关系；
确定所述相邻辅基站中被所述主基站选定的目标辅基站，所述目标辅基站接收所述主基站发送的辅基站添加/修改请求消息与所述优先级匹配关联关系；
所述目标辅基站根据自身的本地条件和所述辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slices，并发送辅基站添加/修改回复消息至所述主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices。
在一实施方式中，所述相邻辅基站确定与所述主基站根据所述无线接入网切片RAN Slices信息建立的RAN Slices优先级匹配关联关系，包括：
相邻辅基站中用作辅服务的RAN Slices和主基站中用作主服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
确定与所述主基站根据所述信息协同的结果和预设的规则建立的辅服务RAN Slices与主服务RAN Slices间的优先级匹配关联关系。
在一实施方式中，所述目标辅基站根据自身的本地条件和辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slices，并发送辅基站添加/修改回复消息至所述主基站，包括：
所述目标辅基站接收所述主基站发送的所述辅基站添加/修改请求消息，结合自身本地条件，利用所述优先级匹配关联关系从所述主基站请求的优先级最高的RAN Slices开始进行选择；
确定满足本地条件的优先级最高的RAN Slices为所述目标辅服务RAN Slices；
所述目标辅基站通过基站节点间接口发送辅基站添加/修改回复消息至 主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅服务RAN Slices。
在一实施方式中，所述目标辅基站根据自身的本地条件和辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slices，包括：
当所述优先级匹配关联关系中仅包含终端UE上报的Slice ID或者多维属性描述标识MDD信息时，目标辅基站根据所述Slice ID或者MDD信息选择目标辅服务RAN Slices。
第三方面，本发明实施例还提供了一种无线接入网络切片选择装置，应用于无线接入网中的主基站，所述装置包括：第一确定模块、匹配模块、第一发送模块、第一接收模块和配置模块；其中，
所述第一确定模块，设置为和相邻辅基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站与所述相邻辅基站中的无线接入网切片RAN Slices信息；
所述匹配模块，设置为根据所述无线接入网切片RAN Slices信息，建立与所述相邻辅基站中RAN Slices的优先级匹配关联关系；
所述第一确定模块，还设置为根据所述主基站的本地条件和终端UE上报的RRM测量结果和Slice ID信息从所述相邻辅基站中确定目标辅基站；
所述第一发送模块，设置为将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站；
所述第一接收模块，设置为接收所述目标辅基站发送的辅基站添加/修改回复消息，其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices；
所述配置模块，设置为通过无线资源控制RRC消息对所述终端UE进行多连接数据传输配置。
在一实施方式中，所述装置还包括：第一协同模块；其中，
所述第一协同模块，设置为所述主基站中用作主服务的RAN Slices和所述相邻辅基站中用作辅服务的RAN Slices通过基站节点间接口的公共流 程进行信息协同，交换RAN Slices切分信息与工作状态；
所述匹配模块，设置为根据所述信息协同的结果和预设的规则建立所述主服务RAN Slices与所述辅服务RAN Slices间的优先级匹配关联关系。
在一实施方式中，所述第一确定模块，设置为根据所述主基站的本地条件和接收到的终端UE上报的RRM测量结果和Slice ID信息，触发多连接数据传输建立/修改的决策，确定所述目标辅基站；
所述第一发送模块，设置为根据多连接数据传输建立/修改的决策，通过基站节点间接口将辅基站添加/修改请求消息发送至所述目标辅基站。
在一实施方式中，所述装置还包括：触发模块；其中，
所述触发模块，设置为接收所述终端UE上报的RRM测量结果和Slice ID信息，触发所述主基站进行多连接数据传输建立/修改的决策；
所述第一确定模块，设置为根据所述主基站的本地条件和接收到的所述终端UE上报的RRM测量结果和Slice ID信息进行多连接数据传输操作，确定满足数据分流条件的相邻辅基站为所述目标辅基站。
第四方面，本发明实施例还提供了一种无线接入网络切片选择装置，应用于无线接入网中与主基站相邻的辅基站，所述装置包括：第二确定模块、第二接收模块和第二发送模块；其中，
所述第二确定模块，设置为和所述主基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站和所述相邻辅基站中的无线接入网切片RAN Slices信息；
以及，确定与所述主基站根据所述无线接入网切片RAN Slices信息建立的RAN Slices优先级匹配关联关系；
以及，确定所述相邻辅基站中被所述主基站选定的目标辅基站；
所述第二接收模块，设置为：所述辅基站为所述目标辅基站时，接收所述主基站发送的辅基站添加/修改请求消息与所述优先级匹配关联关系；
所述第二确定模块，还设置为根据所述目标辅基站的本地条件和所述辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slice；
所述第二发送模块，还设置为发送辅基站添加/修改回复消息至所述主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices。
在一实施方式中，所述装置还包括：第二协同模块；其中，
所述第二协同模块，设置为相邻辅基站中用作辅服务的RAN Slices和主基站中用作主服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
所述第二确定模块，设置为确定与所述主基站根据所述信息协同结果和预设的规则建立的辅服务RAN Slices与主服务RAN Slices间的优先级匹配关联关系。
在一实施方式中，所述装置还包括：选择模块；其中，
所述选择模块，设置为接收所述主基站发送的所述辅基站添加/修改请求消息，结合所述辅基站自身本地条件，利用所述优先级匹配关联关系从所述主基站请求的优先级最高的RAN Slice开始进行选择；
所述第二确定模块，设置为确定满足本地条件的优先级最高的RAN Slice为所述目标辅服务RAN Slice；
所述第二发送模块，设置为通过基站节点间接口发送辅基站添加/修改回复消息至主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅服务RAN Slice。
在一实施方式中，所述选择模块，设置为当所述优先级匹配关联关系中仅包含终端UE上报的Slice ID或者多维属性描述标识MDD信息时，目标辅基站根据所述Slice ID或者MDD信息选择目标辅服务RAN Slices。
第五方面，本发明实施例还提供了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述第一方面的无线接入网络切片选择方法。
第六方面，本发明实施例还提供了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述第二方面的无线接入网络切片选择方法。
本发明实施例提供了一种无线接入网络切片选择方法和装置，根据终端UE上报RRM测量结果和Slice ID信息，主基站发送多连接数据传输配置请求信息至相邻辅基站，相邻辅基站根据主基站的配置请求和本地条件做出辅服务RAN Slice切片的选择，主基站根据该辅服务RAN Slice切片的选择信息对终端UE进行多连接数据传输配置，使得终端UE处于和无线接入网中的多个基站节点的最佳切片集，能够更好的适配终端UE的类型、用户和业务特征，获得更佳的数据传输效果。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为本发明实施例提供的UE在单连接数据传输模式下和RAN/CN切片进行关系匹配的示意图；
图2为本发明实施例提供的多连接数据传输工作模式的示意图；
图3为本发明实施例一提供的多连接数据传输的无线接入网络切片选择方法流程示意图；
图4为本发明实施例二提供的核心网与无线接入网各基站间连接示意图一；
图5为本发明实施例二提供的核心网与无线接入网各基站间连接示意图二；
图6为本发明实施例二提供的核心网与无线接入网各基站间连接示意图三；
图7为本发明实施例三提供的多连接数据传输的无线接入网络切片选择方法流程示意图一；
图8为本发明实施例三提供的多连接数据传输的无线接入网络切片选择方法流程示意图二；
图9为本发明实施例三提供的多连接数据传输的无线接入网络切片选择方法流程示意图三；
图10为本发明实施例三提供的多连接数据传输的无线接入网络切片选 择方法流程示意图四；
图11为本发明实施例四提供的多连接数据传输的无线接入网络切片选择方法流程示意图一；
图12为本发明实施例四提供的多连接数据传输的无线接入网络切片选择方法流程示意图二；
图13为本发明实施例四提供的多连接数据传输的无线接入网络切片选择方法流程示意图三；
图14为本发明实施例五提供的多连接数据传输的无线接入网络切片选择方法流程示意图；
图15为本发明实施例六提供的多连接数据传输的无线接入网络切片选择装置结构示意图一；
图16为本发明实施例六提供的多连接数据传输的无线接入网络切片选择装置结构示意图二；
图17为本发明实施例七提供的多连接数据传输的无线接入网络切片选择装置结构示意图一；
图18为本发明实施例七提供的多连接数据传输的无线接入网络切片选择装置结构示意图二。
详述
下面将结合本发明实施例中的附图，对本发明实施例进行清楚、完整地描述。
图1所示为移动网络切片的架构示意图，核心网CN内有一个公共(初始默认)切片Common/Default CN Slice和3三个专有切片Dedicated CN Slice(C1,C2,C3)，分别对应着不同的运营商租户；无线接入网RAN内有一个公共(初始默认)切片Common/Default RAN Slice和3三个专有切片Dedicated RAN Slice(A1,A2,A3)，分别对应着不同的数据业务类型，例如：类型A1为超高速数据业务，视频业务，虚拟现实等；类型A2为突发小数据包数据业务，如QQ、微信等；类型A3为低时延超可靠数据业务，如车联网无人 驾驶，远程医疗等。每个终端UE用户，通过上报自己的MDD类型属性，让RAN能够选择最匹配合适的网络切片(RAN Slice，RAN Part of NW Slice)，此外根据终端UE用户的签约信息和类型等，让CN能够选择最匹配合适的网络切片(CN Slice，CN Parts of NW Slice)；如果没有哪个专有的CN/RAN Slice能够匹配，那么网络可以拒绝UE的接入使用，或者把它们关联匹配在Common/Default CN/RAN Slice上，做统一无定制化的普通处理，这种公共模式下，UE获得的数据传输服务通常没有专有切片定制提供的服务好，因此在数据传输功能和性能方面稍弱。
描述了UE在单连接数据传输模式(即和单个通信基站建立维护单条无线电链路(RL，Radio link))下，和RAN/CN切片进行关系匹配的方式；而随着5G系统多连接数据传输技术的发展，终端UE可以同时和多个通信基站建立和维护多条无线连接RL，同时进行着控制面/用户面数据的上下行传输和相关控制反馈。在多连接数据传输模式中，通常有唯一一个主控锚点基站(或者简称主基站)和多个辅助分流基站(或者简称辅基站)；主基站主要负责整个多连接操作的建立维护和释放等控制面功能，而辅基站主要负责相关用户面数据的分流转发等功能，从而原本只能在主基站和终端UE之间传输的数据流可以在多个无线数据连接RL中分流传输，这样能够更加充分高效地平衡利用好空口的无线资源，空域，时域，频域等。举例而言，第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)标准规范的长期演进(Long Term Evolution，LTE)或者长期演进技术升级版(Long Term EvolutionAdvanced，LTE-A)系统，在Rel-12版本中引进了双连接(Dual Connectivity，DC)功能。DC功能使得单个用户设备终端UE(User Equipment，UE)可以同时和两个LTE服务基站主基站(Master Evolved Node B，MeNB)和辅基站(SecondaryEvolved Node B，SeNB)进行无线连接和上下行用户业务数据的收发传输。3GPP标准规范的LTE/LTE-A系统，在Rel-13版本进一步引入了LTE和WLAN聚合(LTE WLAN Aggregation，LWA)功能，即LTE系统和WLAN系统之间在无线接入层进行无线资源的聚合使用，LWA功能使得单个终端UEUE可以同时和LTE服务基站主基站MeNB和WLAN辅基站WT同时进行无线连接和上下行用户业务数据的收发传输。当上述典型的“双连接操作”进一步维度 扩展和混搭组合，可以产生含有更多RL连接的“多连接数据传输模式”，即终端UE和2个及以上服务基站节点的同时连接通信。
参见图2，其示出了移动通信系统中多连接数据传输工作模式，图2中单向细箭头线表示控制信令的传输，双向粗箭头线表示用户业务数据的传输。在多连接数据传输工作模式下，终端UE需要能和各个参与协作分流的基站节点进行合理的RAN SLICE切片选择，从而终端UE不仅在单连接数据传输工作模式下能够享受到更佳的切片服务，在多连接数据传输工作模式下，同样能够享受到更佳的切片服务。
实施例一
参见图3，本发明实施例提供一种无线接入网络切片选择方法，所述方法包括：
S101、核心网和无线接入网中的主基站和相邻辅基站通过接口公共流程，构建网络切片端到端的匹配关联关系。
其中，通过核心网和其所辖的所有基站进行网络切片端到端的匹配和关联，形成核心网和无线接入网各自公共或专有切片的划分匹配关联，其中，核心网切片为CN Slices，无线接入网切片为RAN Slices。随着切片的划分，各切片对应的网络功能和网络资源配置也随之确定。
S102、利用基站节点间接口的公共流程，无线接入网中的主基站和相邻辅基站进行主服务和辅服务RAN Slices信息协同和优先级匹配关联。
无线接入网基站节点之间通过公共信令流程彼此通知和协同各自实时的RAN Slice切分和工作状态，包括在基站节点中当前配置包含的RAN Slice信息，各个RAN Slice的工作状态是否正常，以及负荷状态等等。
根据运营商需求和预定义方式，主基站设置其自身内部的RAN Slice和辅基站内部RAN Slice之间的优先级关联关系。例如，主基站BS1内部有三个Dedicated Master RAN Slice(DMA1,DMA2,DMA3)和一个Common/Default Master RAN Slice(CMA)，它的某个相邻辅基站内部有两个Dedicated Secondary RAN Slice(DSA1,DSA2)和一个Common/Default Secondary RAN Slice(CSA)，那么主基站需要提前构建和/或修改维护诸如下述合法且含有 优先级关联匹配信息的关系表：
DMA1-{DSA1(第一优先级)，DSA2(第二优先级)，CSA(第三优先级)}，表示主基站内的DMA1首选和DSA1进行匹配关联，形成多连接数据传输操作；其次才是DSA2，CSA。
DMA2-{DSA2(第一优先级)，CSA(第二优先级)，DSA1(第三优先级)}，表示主基站内的DMA2首选和DSA2进行匹配关联，形成多连接数据传输操作；其次才是CSA，DSA1。
DMA3-{CSA(第一优先级)，DSA1(第二优先级)}，表示主基站内的DMA3首选和CSA进行匹配关联，形成多连接数据传输操作；其次才是DSA1。
CMA-{CSA(第一优先级)}，表示主基站内的CMA首选和CSA进行匹配关联，形成多连接数据传输操作，不能和辅基站内其他RAN Slice形成关联匹配。
S103、终端UE将RRM测量结果和Slice ID信息上报至无线接入网中的主基站。
可以理解地，由于终端UE的移动性或者无线环境条件的变化，终端UE向主基站上报无线资源管理(RRM，Radio Resource Management)测量结果，触发主基站进行多连接数据传输操作的建立或者修改。
S104、无线接入网中的主基站根据其自身的本地条件和终端UE上报的RRM测量结果和Slice ID信息，确定目标辅基站。
在主基站为终端UE建立和维护多连接数据传输操作的过程中，需要通过基站节点间专有信令流程，向辅基站传输上述“优先级关联匹配信息的关系表”。由于特定Slice ID或者MDD能够反映出特定终端UE的当前业务特点，因此作为一种特例，主基站也可以把当前正在服务的终端UE的Slice ID或者MDD信息作为“优先级关联匹配信息的关系表”传输至辅基站。
通过上述专有信令流程，将“优先级关联匹配信息的关系表”发给辅基站，作为辅服务RAN SLICE切片的选择参考。当“优先级关联匹配信息 的关系表”中只包含终端UE的Slice ID或者MDD信息时，辅基站侧不存在优先级选择的问题，按照从主基站发来的唯一Slice ID或者MDD信息进行匹配选择。
S105、主基站通过基站节点间接口将辅基站添加/修改请求消息发送至目标相邻辅基站。
主基站通过基站间接口发送的辅基站添加/修改请求消息，包含UE在当前主基站主服务RAN SLICE切片和与之相关的辅服务RAN SLICE切片优先级匹配关联信息，还包含该目标相邻辅基站做多连接操作的其他配置相关信息，上述信息也包括仅仅含有唯一Slice ID或者MDD信息的情况。
S106、目标相邻辅基站根据其自身的本地条件和主基站的配置请求，选择辅服务RAN Slice切片。
目标相邻辅基站基于上述“优先级关联匹配信息的关系表”，其中也包括仅仅含有唯一Slice ID或者MDD信息的情况，根据其自身的本地条件为终端UE选择相应的辅基站RAN Slice。从最高优先级开始考虑，如果该切片条件和工作状态合适，即选择它为终端UE的辅基站RAN Slice；否则按照优先级顺利，选择后面的RAN Slice做匹配关联。如果“优先级关联匹配信息的关系表”包含Slice ID或者MDD信息，则直接按照唯一Slice ID或者MDD信息进行匹配选择。
S107、相邻辅基站通过基站节点间接口发送辅基站添加/修改回复消息至主基站。
辅基站将最终匹配选择的辅基站RAN Slice结果，包括切片标识，Slice ID或者MDD信息等，通过基站节点间专有信令流程，告知主基站，进而主基站通过空口流程，为终端UE建立或维护多连接数据传输操作。UE和主基站上尽量高的优先级RAN Slice匹配关联，同时和辅基站上尽量高的优先级RAN Slice匹配关联。
S108、主基站接收辅基站添加/修改回复消息，通过空口RRC消息配置终端UE进行多连接数据传输操作。
可以理解地，当主基站接收到辅基站发送的辅基站添加/修改回复消息 后，就可以对终端UE进行相应的多连接数据传输配置，实现终端UE的多连接数据传输。
实施例二
本实施例通过在无线接入网的基站中对网络切片进行选择的过程对上述实施例进行详细说明。下面将给出利用NG-Core(Next Generation Core，下一代核心网)，eLTE eNB，NR gNB1和NR gNB2四个基站做多连接数据传输操作的四种过程：
实施例一
参见图4，NG-Core内部根据业务种类划分为增强的带宽数据传输业务(eMBB，Enhanced Mobile Broadband),超可靠低时延通讯(URLLC，Ultra Reliable Low Latency Communication),海量巨量机器类型物联网终端通讯(mMTC，Massive Machine Type Communication)三个核心网切片(CN Slice)，分别为NG-Core Slice1，NG-Core Slice2，NG-Core Slice3。无线信号覆盖最大的eLTE eNB作为主基站，内部没有做任何专有无线接入网切片(Dedicated RAN Slice)的配置划分，即只有一个公共无线接入网切片(Common/Default RAN Slice)。无线信号覆盖较小的NR gNB1可以作为辅基站进行数据分流，内部配置且划分了一个Common/Default RAN Slice和三个Dedicated RAN Slice，分别对应eMBB,URLLC,mMTC三大类业务。无线信号覆盖较小的NR gNB2可以作为另外一个辅基站进行数据分流，内部配置且划分了一个Common/Default RAN Slice和两个Dedicated RAN Slice，分别对应eMBB,mMTC两大类业务(因此NR gNB2不能高效的支持URLLC类业务)；某时刻UE1进入到eLTE eNB，NR gNB1和NR gNB2基站的各自服务信号的共同覆盖区域，因此具备做多链接数据传输的无线条件。其中，eLTE eNB，NR gNB1和NR gNB2为NG-RAN中的基站，NG-Core和NG-RAN之间的接口为NG1。由图4可以看出，NG-Core中的三个核心网切片分别与NG-RAN中的三个基站eLTE eNB，NR gNB1和NR gNB2通过NG1连接。
图4中的CMA为Common/Default Master RAN，即主基站内的公共网络切片，支持所有合法类型的业务和终端。CSA为Common/Default  Secondary RAN Slice，即辅基站内的公共网络切片，支持所有合法类型的业务和终端。DSA为Dedicated Secondary RAN Slice，即辅基站内的专有网络切片，支持特定类型的业务和终端，目的为了能够提供定制化的优化数据传输服务。DSA2/3/4分别对应eMBB,URLLC,mMTC三大类业务，DSA5/6分别对应eMBB,mMTC两大类业务。
在上述场景下，多连接数据传输情况下无线接入网络切片选择的步骤如下：
1、基于NG-Core和eLTE eNB，NR gNB1，NR gNB2基站之间的NG1标准化接口的公共流程CN-RAN Slice Info Exchange，核心网和所辖的所有基站进行网络切片端到端的构建匹配和关联，形成各自的公共或专有CN Slices/RAN Slices的划分匹配和关联。
2、利用基站节点间Xnew标准化接口的公共流程RAN-RAN Slice Info Exchange，主基站eNB和辅基站gNB1,gNB2进行已经构建完毕的主辅服务RAN Slices信息协同和优先级匹配关联，从而主基站eNB能够获悉相邻辅基站gNB1,gNB2内部的RAN Slice配置和划分。基于上述RAN Slice Info协同的结果，主基站eNB可以确定相邻辅基站内RAN Slices和自己的RAN Slices之间特定的优先级匹配关联关系。
3、随着被服务UE1的移动或者无线环境条件的变化，UE1上报了对辅基站目标服务小区的RRM测量结果和Slice ID信息，从而触发主基站eNB进行多连接数据传输操作的建立或者修改。
4、主基站eNB基于UE1的RRM测量上报结果和本地条件，决定进行多连接数据传输操作，且选择gNB1作为目标服务辅基站进行数据分流。
5、主基站eNB通过基站间Xnew接口发送给辅基站gNB1添加/修改请求消息Secondary Node Addition/Modification Request，包含UE1在当前服务主基站eNB内主服务RAN SLICE切片CMA和与之相关的辅服务RAN SLICE切片优先级匹配关联信息(可以用特定逻辑标识表达)，如下：
CMA-{DSA2(eMBB第一优先级),CSA1(第二优先级)，DSA3(URLLC第三优先级),DSA4(mMTC第四优先级)}，还包含辅基站gNB1做多连 接操作的其他配置相关信息。
6、辅基站gNB1接收解析添加/修改请求消息Secondary Node Addition/Modification Request之后，根据主基站eNB的配置请求和本地条件，做出辅服务RAN SLICE切片的选择，从主基站eNB请求的最高优先级RAN SLICE切片开始甄选，最终决定提供DSA2(eMBB第一优先级)作为参与做多连接的辅服务RAN SLICE切片。
7、辅基站gNB1通过基站间Xnew接口向主基站eNB发送辅基站添加/修改回复消息Secondary Node Addition/Modification Response，包含辅基站gNB1选择的辅服务RAN SLICE切片信息DSA2和做多连接操作的其他配置回复相关信息。
8、主基站eNB接收解析Secondary Node Addition/Modification Response之后，确认可以接受辅基站gNB1提供的所有多连接操作的配置信息，通过空口RRC消息(重)配置终端UE 1进行多连接数据传输操作。之后UE1基于eNB内的CMA主服务RAN SLICE切片和gNB1内的DSA2辅服务RAN SLICE切片进行双连接eMBB类数据传输操作。
实施例二
参见图5，NG-Core内部根据业务种类划分为eMBB,URLLC,mMTC三个CN Slice，无线信号覆盖最大的NR gNB1作为主基站，内部配置且划分了一个Common/Default RAN Slice和三个Dedicated RAN Slice，分别对应eMBB,URLLC,mMTC三大类业务；无线信号覆盖较小的eLTE eNB可以作为辅基站进行数据分流，内部配置且划分了一个Common/Default RAN Slice和一个Dedicated RAN Slice，对应着eMBB类业务；无线信号覆盖较小的NR gNB2可以作为另外一个辅基站进行数据分流，内部配置且划分了一个Common/Default RAN Slice和两个Dedicated RAN Slice，分别对应eMBB,URLLC两大类业务；某时刻UE2进入到eLTE eNB，NR gNB1和NR gNB2基站的各自服务信号的共同覆盖区域，因此具备做多链接数据传输的无线条件。图5中的DMA为Dedicated Master RAN Slice，即主基站内的专有网络切片，支持特定类型的业务和终端，目的是为了能够提供定制化的优化数据传输服务。
在上述场景下，多连接数据传输情况下无线接入网络切片选择的步骤如下：
1、基于NG-Core和eLTE eNB，NR gNB1，NR gNB2基站之间的NG2标准化接口的公共流程CN-RAN Configuration Update，核心网和所辖的所有基站进行网络切片端到端的构建匹配和关联，形成各自的公共或专有CN Slices/RAN Slices的划分匹配和关联。
2、利用基站节点间Xnew标准化接口的公共流程CN-RANConfiguration Update，主基站gNB1和辅基站eNB,gNB2进行已经构建完毕的主辅服务RAN Slices信息协同和优先级匹配关联，从而主基站gNB1能够获悉相邻辅基站eNB,,gNB2内部的RAN Slice配置和划分。基于上述RAN Slice Info协同的结果，主基站gNB1可以确定相邻辅基站内RAN Slices和自己的RAN Slices之间特定的优先级匹配关联关系。
3、随着被服务UE2的移动或者无线环境条件的变化，UE2上报了对辅基站目标服务小区的RRM测量结果和Slice ID信息，从而触发主基站gNB1进行多连接数据传输操作的建立或者修改。
4、主基站gNB1基于UE2的RRM测量上报结果和本地条件，决定进行多连接数据传输操作，且选择gNB2作为目标服务辅基站进行数据分流。
5、主基站gNB1通过基站间Xnew接口发送给辅基站gNB2添加/修改请求消息Secondary Node Addition/Modification Request，包含UE2在当前服务主基站gNB1内主服务RAN SLICE切片DMA3和与之相关的辅服务RAN SLICE切片优先级匹配关联信息(可以用特定逻辑标识表达)，如下：
DMA3-{DSA6(URLLC第一优先级),CSA2(第二优先级)，DSA5(eMBB第三优先级)}，还包含辅基站gNB2做多连接操作的其他配置相关信息。
6、辅基站gNB2接收解析添加/修改请求消息Secondary Node Addition/Modification Request之后，根据主基站gNB1的配置请求和本地条件，做出辅服务RAN SLICE切片的选择，从主基站gNB1请求的最高优先级RAN SLICE切片开始甄选，最终决定提供DSA6(URLLC第一优先级)作为参与做多连接的辅服务RAN SLICE切片。
7、辅基站gNB2通过基站间Xnew接口向主基站gNB1发送辅基站添加/修改回复消息Secondary Node Addition/Modification Response，包含辅基站gNB2选择的辅服务RAN SLICE切片信息DSA6和做多连接操作的其他配置回复相关信息。
8、主基站gNB1接收解析Secondary Node Addition/Modification Response之后，确认可以接受辅基站gNB2提供的所有多连接操作的配置信息，通过空口RRC消息(重)配置终端UE 2进行多连接数据传输操作。之后UE2基于gNB1内的DMA3主服务RAN SLICE切片和gNB2内的DSA6辅服务RAN SLICE切片进行双连接URLLC类数据传输操作。
实施例三
参见图6，NG-Core内部根据业务种类划分为eMBB,URLLC,mMTC三个CN Slice，无线信号覆盖最大的NR gNB2作为主基站，内部配置且划分了一个Common/Default RAN Slice和两个Dedicated RAN Slice，分别对应eMBB,URLLC两大类业务；无线信号覆盖较小的eLTE eNB可以作为辅基站进行数据分流，内部配置且划分了一个Common/Default RAN Slice和两个Dedicated RAN Slice，分别对应着eMBB，mMTC两大类业务；无线信号覆盖较小的NR gNB1可以作为另外一个辅基站进行数据分流，内部配置且划分了一个Common/Default RAN Slice和三个Dedicated RAN Slice，分别对应eMBB,URLLC，mMTC三大类业务；某时刻UE3进入到eLTE eNB，NR gNB1和NR gNB2基站的各自服务信号的共同覆盖区域，因此具备做多链接数据传输的无线条件。
在上述场景下，多连接数据传输情况下无线接入网络切片选择的步骤如下：
1、基于NG-Core和eLTE eNB，NR gNB1，NR gNB2基站之间的NG3标准化接口的公共流程CN-RAN Configuration Update，核心网和所辖的所有基站进行网络切片端到端的构建匹配和关联，形成各自的公共或专有CN Slices/RAN Slices的划分匹配和关联。
2、利用基站节点间Xnew标准化接口的公共流程CN-RAN Configuration Update，主基站gNB2和辅基站eNB,gNB1进行已经构建完毕 的主辅服务RAN Slices信息协同和优先级匹配关联，从而主基站gNB2能够获悉相邻辅基站eNB,,gNB1内部的RAN Slice配置和划分。基于上述RAN Slice Info协同的结果，主基站gNB2可以确定相邻辅基站内RAN Slices和自己的RAN Slices之间特定的优先级匹配关联关系。
3、随着被服务UE3的移动或者无线环境条件的变化，UE3上报了对辅基站目标服务小区的RRM测量结果和Slice ID信息，从而触发主基站gNB2进行多连接数据传输操作的建立或者修改。
4、主基站gNB2基于UE3的RRM测量上报结果和本地条件，决定进行多连接数据传输操作，且选择eNB和gNB1同时作为目标服务辅基站进行数据分流。
5、主基站gNB2通过基站间Xnew接口发送给辅基站eNB和gNB1添加/修改请求消息Secondary Node Addition/Modification Request，包含UE3在当前服务主基站gNB2内主服务RAN SLICE切片DMA2和与之相关的辅服务RAN SLICE切片优先级匹配关联信息(可以用特定逻辑标识表达)，如下：
DMA2-{DSA7(eMBB第一优先级),CSA3(第二优先级)}，还包含其他辅基站eNB做多连接操作的配置相关信息。
DMA2-{DSA4(eMBB第一优先级),CSA2(第二优先级)}，还包含辅基站gNB1做多连接操作的其他配置相关信息。
6、辅基站eNB和gNB1接收解析添加/修改请求消息Secondary Node Addition/Modification Request之后，分别根据主基站gNB2的配置请求和本地条件，做出辅服务RAN SLICE切片的选择，从主基站gNB2请求的最高优先级RAN SLICE切片开始甄选，最终eNB决定提供DSA7(eMBB第一优先级)作为参与做多连接的辅服务RAN SLICE切片，由于gNB1内的DSA4(eMBB第一优先级)切片负荷过重，因此gNB1决定提供CSA2(第二优先级)作为参与做多连接的辅服务RAN SLICE切片。
7、辅基站eNB和gNB1分别通过基站间Xnew接口向主基站gNB2发送辅基站添加/修改回复消息Secondary Node Addition/Modification  Response，包含辅基站eNB和gNB1各自选择的辅服务RAN SLICE切片信息DSA7和CSA2，和各自做多连接操作的其他配置回复相关信息。
8、主基站gNB2接收解析Secondary Node Addition/Modification Response之后，确认可以接受辅基站eNB和gNB1提供的所有多连接操作的配置信息，通过空口RRC消息(重)配置终端UE 3进行多连接数据传输操作。之后UE3基于gNB2内的DMA2主服务RAN SLICE切片和eNB内DSA7辅服务RAN SLICE切片，和gNB1内的CSA2辅服务RAN SLICE切片进行三连接eMBB类数据传输操作。
实施例四
参见图5，与实施例二中的图示相同，该实施例四用于对相邻辅基站根据UE4上报的唯一Slice ID或者MDD值选择网络切片的说明。NG-Core内部根据业务种类划分为eMBB,URLLC，mMTC三个CN Slice，无线信号覆盖最大的NR gNB1作为主基站，内部配置且划分了一个Common/Default RAN Slice和三个Dedicated RAN Slice，分别对应eMBB,URLLC,mMTC三大类业务；无线信号覆盖较小的eLTE eNB可以作为辅基站进行数据分流，内部配置且划分了一个Common/Default RAN Slice和一个Dedicated RAN Slice，对应着eMBB类业务；无线信号覆盖较小的NR gNB2可以作为另外一个辅基站进行数据分流，内部配置且划分了一个Common/Default RAN Slice和两个Dedicated RAN Slice，分别对应eMBB,URLLC两大类业务；某时刻UE4进入到eLTE eNB，NR gNB1和NR gNB2基站的各自服务信号的共同覆盖区域，因此具备做多链接数据传输的无线条件。
在上述场景下，多连接数据传输情况下无线接入网络切片选择的步骤如下：
1、基于NG-Core和eLTE eNB，NR gNB1，NR gNB2基站之间的NG2标准化接口的公共流程CN-RAN Configuration Update，核心网和所辖的所有基站进行网络切片端到端的构建匹配和关联，形成各自的公共或专有CN Slices/RAN Slices的划分匹配和关联。
2、利用基站节点间Xnew标准化接口的公共流程CN-RAN Configuration Update，主基站gNB1和辅基站eNB,gNB2进行已经构建完毕 的主辅服务RAN Slices信息协同和优先级匹配关联，从而主基站gNB1能够获悉相邻辅基站eNB,,gNB2内部的RAN Slice配置和划分。基于上述RAN Slice Info协同的结果，主基站gNB1可以确定相邻辅基站内RAN Slices和自己的RAN Slices之间特定的优先级匹配关联关系，决定主辅基站间只能相同类型/租户的RAN Slices可以匹配关联，因此仅仅基于唯一的Slice ID或者MDD值。
3、随着被服务UE4的移动或者无线环境条件的变化，UE4上报了对辅基站目标服务小区的RRM测量结果和Slice ID信息，从而触发主基站gNB1进行多连接数据传输操作的建立或者修改。
4、主基站gNB1基于UE4的RRM测量上报结果和本地条件，决定进行多连接数据传输操作，且选择gNB2作为目标服务辅基站进行数据分流。
5、主基站gNB1通过基站间Xnew接口发送给辅基站gNB2添加/修改请求消息Secondary Node Addition/Modification Request，包含UE4在当前服务主基站gNB1内主服务RAN SLICE切片DMA3和与之相关的辅服务RAN SLICE切片优先级匹配关联信息(可以用UE4上报的唯一Slice ID或者MDD值表达)，如下：
DMA2-{DSA5(eMBB唯一可匹配关联的辅RAN切片)}，还包含辅基站gNB2做多连接操作的其他配置相关信息。
6、辅基站gNB2接收解析添加/修改请求消息Secondary Node Addition/Modification Request之后，根据主基站gNB1的配置请求和本地条件，做出辅服务RAN SLICE切片的选择，选择主基站gNB1请求的唯一匹配候选DSA5作为参与做多连接的辅服务RAN SLICE切片。
7、辅基站gNB2通过基站间Xnew接口向主基站gNB1发送辅基站添加/修改回复消息Secondary Node Addition/Modification Response，包含辅基站gNB2选择的辅服务RAN SLICE切片信息DSA5和做多连接操作的其他配置回复相关信息。
8、主基站gNB1接收解析Secondary Node Addition/Modification Response之后，确认可以接受辅基站gNB2提供的所有多连接操作的配置信 息，通过空口RRC消息(重)配置终端UE4进行多连接数据传输操作。之后UE4基于gNB1内的DMA2主服务RAN SLICE切片和gNB2内的DSA5辅服务RAN SLICE切片进行双连接eMBB类数据传输操作。
实施例三
参见图7，本发明实施例提供一种无线接入网络切片选择方法，应用于无线接入网中的主基站，所述方法包括：
S201、无线接入网中的主基站和相邻辅基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定主基站与相邻辅基站中的无线接入网切片RAN Slices信息。
可以理解地，无线接入网切片RAN Slices可以划分为公共和专有的网络切片。可以分为主基站内的公共网络切片和专有网络切片，以及辅基站内的公共网络切片和专有网络切片。无线接入网切片RAN Slices确定后其各自对应的网络功能和网络资源配置也随之而确定。这里构建网络切片端到端的对应关系，端到端的数据传输方向一般是从产生业务数据的网络源节点到接受业务数据的网络终节点。S202、主基站根据无线接入网切片RAN Slices信息，建立与相邻辅基站中RAN Slices的优先级匹配关联关系。
参见图8，步骤S202包括步骤S2021和S2022：
S2021、主基站中用作主服务的RAN Slices和与其相邻的辅基站中用作辅服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态。
S2022、根据所述信息协同的结果和预设的规则建立主服务RAN Slices与辅服务RAN Slices间的优先级匹配关联关系。
主基站内的网络切片RAN Slices作为主服务切片，与其相邻的辅基站内的网络切片RAN Slices作为辅服务切片。主服务和辅服务网络切片通过公共信令流程彼此通知和协同各自实时的RAN Slices的划分状态和工作状态，以保障他们之间正常的工作交互。
主基站提前构建与辅基站中的网络切片RAN Slices的优先级匹配关联 关系，该优先级匹配关联关系用于主基站中的各个网络切片选择辅基站中的网络切片形成多连接数据传输操作时的优先级别排序，根据优先级匹配关联关系生成一个“优先级关联匹配信息的关系表”。
S203、主基站根据其自身的本地条件和终端UE上报的无线资源管理RRM测量结果和切片标识Slice ID信息从相邻辅基站中确定目标辅基站，并将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站。
参见图9，步骤S203包括步骤S2031和S2032：
S2031、主基站根据其自身的本地条件和接收到的终端UE上报的RRM测量结果和Slice ID信息，触发多连接数据传输建立/修改的决策，确定目标辅基站。
S2032、根据多连接数据传输建立/修改的决策，主基站通过基站节点间接口将辅基站添加/修改请求消息发送至目标辅基站。
参见图10，步骤S2031包括步骤S20311和S20312：
S20311、主基站接收终端UE上报的RRM测量结果和Slice ID信息，触发主基站进行多连接数据传输建立/修改的决策。
S20312、主基站根据其自身的本地条件和接收到的终端UE上报的RRM测量结果和Slice ID信息进行多连接数据传输操作，确定满足数据分流条件的相邻辅基站为目标辅基站。
由于终端UE的移动行或者无线环境条件的变化，导致终端UE在基站中的接入状态发生变化。因此主基站根据终端UE的RRM测量结果和Slice ID信息以及其自身的本地条件，为终端UE进行多连接数据传输建立/修改的决策，将主基站的网络切片中的一部分任务量分流至与目标辅基站中，使终端UE在多连接传输工作模式下处于和多个无线接入网基站节点的最佳切片集的连接状态，这里目标辅基站可以为一个或者多个与主基站相邻的辅基站。通过上述的过程主服务RAN Slices和辅服务RAN Slices就可以更好的适配终端UE的不同类型，不同用户以及不同的业务特征，使得终端UE获得更佳的数据传输效果。这里主基站的本地条件包括其当前各个 RAN Slice的划分情况、工作状态是否正常、负荷状态以及资源使用率等条件。
主基站为终端UE建立和维护多连接数据传输操作的过程中，将“优先级关联匹配信息的关系表”传输至目标辅基站，目标辅基站就可以根据主机站发送的辅基站添加/修改请求消息在其自身选择更优的网络切片配合主机站的数据传输任务。
S204、主基站接收目标辅基站发送的辅基站添加/修改回复消息，并通过无线资源控制RRC消息对终端UE进行多连接数据传输配置；其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices。
可以理解地，目标辅基站发送给主基站的辅基站添加/修改回复消息中包含了目标辅基站最终选定的RAN Slice结果，包括切片标识、Slice ID或者MDD信息等。通过基站节点间专有信令流程，告知主基站，进而主基站通过空口流程，为终端UE建立或维护多连接数据传输操作。UE和主基站上尽量高的优先级RAN Slice匹配关联，同时和辅基站上尽量高的优先级RAN Slice匹配关联。
当UE在主基站上匹配关联的RAN Slice发生改变，通常触发UE在辅基站上匹配关联的RAN Slice也发生随之改变。相反，若UE在辅基站上匹配关联的RAN Slice发生改变，UE在主基站上匹配关联的RAN Slice可能不发生改变。
终端UE既可以和同种类型或者租户的RAN Slice建立多连接数据传输操作，也可以和不同类型或者租户的RAN Slice建立多连接。
本发明实施例提供了一种多连接数据传输的无线接入网络切片选择方法，根据终端UE上报RRM测量结果和Slice ID信息，主基站发送多连接数据传输配置请求信息至相邻辅基站，相邻辅基站根据主基站的配置请求和本地条件做出辅服务RAN Slice切片的选择，主基站根据该辅服务RAN Slice切片的选择信息对终端UE进行多连接数据传输配置，使得终端UE处于和无线接入网中的多个基站节点的最佳切片集，能够更好的适配终端UE的类型、用户和业务特征，获得更佳的数据传输效果。
实施例四
参见图11，本发明实施例提供一种无线接入网络切片选择方法，应用于无线接入网中与主基站相邻的辅基站，所述方法包括：
S301、无线接入网中与主基站相邻的辅基站和主基站分别与核心网构建网络切片端到端的对应关系，根据网络切片端到端的对应关系确定主基站和相邻辅基站中的无线接入网切片RAN Slices信息。
可以理解地，无线接入网切片RAN Slices可以划分为公共和专有的网络切片。可以分为主基站内的公共网络切片和专有网络切片，以及辅基站内的公共网络切片和专有网络切片。无线接入网切片RAN Slices确定后其各自对应的网络功能和网络资源配置也随之而确定。
S302、相邻辅基站确定与主基站根据无线接入网切片RAN Slices信息建立的RAN Slices优先级匹配关联关系。
参见图12，步骤S302包括步骤S3021和S3022：
S3021、相邻辅基站中用作辅服务的RAN Slices和主基站中用作主服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态。
S3022、确定与所述主基站根据所述信息协同的结果和预设的规则建立的辅服务RAN Slices与主服务RAN Slices间的优先级匹配关联关系。
主基站内的网络切片RAN Slices作为主服务切片，与其相邻的辅基站内的网络切片RAN Slices作为辅服务切片。主服务和辅服务网络切片通过公共信令流程彼此通知和协同各自实时的RAN Slices的划分状态和工作状态，以保障他们之间正常的工作交互。
主基站提前构建与辅基站中的网络切片RAN Slices的优先级匹配关联关系，该优先级匹配关联关系用于主基站中的各个网络切片选择辅基站中的网络切片形成多连接数据传输操作时的优先级别排序，根据优先级匹配关联关系生成一个“优先级关联匹配信息的关系表”。
S303、确定相邻辅基站中被主基站选定的目标辅基站，所述目标辅基站接收主基站发送的辅基站添加/修改请求消息与所述优先级匹配关联关 系。
可以理解地，在目标辅基站确定之后，目标辅基站会接收到主基站发送的辅基站添加/修改请求消息，该消息包含了终端UE在主基站内的主服务RAN Slices与辅服务RAN Slices优先级匹配关联关系。这里相邻辅基站也可以主动建立优先级匹配关联关系，但是通常由做为锚点控制源的主基站主动去建立优先级匹配关联关系。
S304、目标辅基站根据其自身的本地条件和辅基站添加/修改请求消息，利用优先级匹配关联关系确定目标辅服务RAN Slices，并发送辅基站添加/修改回复消息至主基站；其中，辅基站添加/修改回复消息中包含目标辅基站根据优先级匹配关联关系选择的目标辅服务RAN Slices。
参见图13，步骤S304包括步骤S3041至S3043：
S3041、目标辅基站接收主基站发送的辅基站添加/修改请求消息，结合其自身本地条件，利用优先级匹配关联关系从主基站请求的优先级最高的RAN Slices开始进行选择。
S3042、确定满足本地条件的优先级最高的RAN Slices为目标辅服务RAN Slices。
S3043、目标辅基站通过基站节点间接口发送辅基站添加/修改回复消息至主基站；其中，辅基站添加/修改回复消息中包含目标辅服务RAN Slices。
优先级匹配关联关系中可能只包含终端UE上报的Slice ID或者多维属性描述标识MDD信息，由于特定Slice ID或者MDD信息能够反应出特定终端UE的当前业务特点，因此作为一种特例，主基站可以把当前正在服务的终端UE的Slice ID或者MDD信息包含在优先级匹配关联关系(例如“优先级关联匹配信息的关系表”)中，通过专有信令流程发给辅基站，作为辅服务切片选择的参考。此时辅基站不存在优先级选择的问题，按照从主基站发来的唯一Slice ID或者MDD信息进行匹配选择。
因此步骤S304还包括：
当所述优先级匹配关联关系中仅包含终端UE上报的Slice ID或者多维 属性描述标识MDD信息时，目标辅基站根据所述Slice ID或者MDD信息选择目标辅服务RAN Slices。
目标辅基站接收到主基站发送的辅基站添加/修改请求消息之后，结合其自身的本地条件为来以及优先级匹配关联关系确定目标辅服务RAN Slice。在选定目标辅服务RAN Slice后，目标辅基站就将包含目标辅服务RAN Slice的辅基站添加/修改回复消息发送至主基站，让主基站获知目标辅基站的切片选择。辅基站添加/修改回复消息中除了包含目标辅服务RAN Slice还包含多连接操作的其他配置回复相关信息。这里相邻辅基站的本地条件包括其当前各个RAN Slice的划分情况、工作状态是否正常、负荷状态以及资源使用率等条件。
本发明实施例提供了一种多连接数据传输的无线接入网络切片选择方法，根据终端UE上报RRM测量结果和Slice ID信息，主基站发送多连接数据传输配置请求信息至相邻辅基站，相邻辅基站根据主基站的配置请求和本地条件做出辅服务RAN Slice切片的选择，主基站根据该辅服务RAN Slice切片的选择信息对终端UE进行多连接数据传输配置，使得终端UE处于和无线接入网中的多个基站节点的最佳切片集，能够更好的适配终端UE的类型、用户和业务特征，获得更佳的数据传输效果。
实施例五
参见图14，本发明实施例提供一种无线接入网络切片选择方法，应用于终端UE，所述方法包括：
S401、终端UE上报RRM测量结果和Slice ID信息至无线接入网中的主基站。
可以理解地，RRM可以为网络内终端UE提供业务质量保障，终端UE向主基站上报RRM测量结果和Slice ID信息，可以触发主基站进行多连接数据传输操作的建立或者修改，使得在网络话务量分布不均匀、信道特性因信道衰弱和干扰而起伏变化等情下，灵活分配和动态调整无线传输部分和网络的可用资源，更大程度地提高无线频谱利用率，防止网络拥塞和保持尽可能小的信令负荷。
S402、终端UE接收无线接入网中的主基站发送的对其进行的多连接数据传输配置消息。
终端UE向主基站上报了RRM测量结果和Slice ID信息之后，主基站就根据RRM测量结果和Slice ID信息以及其自身的本地条件，进行多连接数据传输操作判断，为终端UE选择目标辅基站。待目标辅基站选择了最优的网络切片后，主基站将多连接数据传输配置消息发送至终端UE，之后终端UE就可以与主基站的主服务网络切片和目标辅基站中的辅服务网络切片进行多连接数据传输操作。
实施例六
参见图15，其示出了本发明实施例提供的一种无线接入网络切片选择装置15，所述装置15应用于无线接入网中的主基站，所述装置包括：第一确定模块1501、匹配模块1502、第一发送模块1503、第一接收模块1504和配置模块1505；其中，
所述第一确定模块1501，设置为和相邻辅基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站与所述相邻辅基站中的无线接入网切片RAN Slices信息；
所述匹配模块1502，设置为根据所述无线接入网切片RAN Slices信息，建立与所述相邻辅基站中RAN Slices的优先级匹配关联关系；
所述第一确定模块1501，还设置为所述主基站的本地条件和终端UE上报的RRM测量结果和Slice ID信息从所述相邻辅基站中确定目标辅基站；
所述第一发送模块1503，设置为将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站；
所述第一接收模块1504，设置为接收所述目标辅基站发送的辅基站添加/修改回复消息，其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices；
所述配置模块1505，设置为通过无线资源控制RRC消息对所述终端UE进行多连接数据传输配置。
进一步地，参见图16，所述装置还包括：第一协同模块；其中，
所述第一协同模块1505，设置为所述主基站中用作主服务的RAN Slices和所述相邻辅基站中用作辅服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
所述匹配模块1502，设置为根据所述信息协同的结果和预设的规则建立所述主服务RAN Slices与所述辅服务RAN Slices间的优先级匹配关联关系。
进一步地，所述第一确定模块1501，设置为根据所述主基站的本地条件和接收到的终端UE上报的RRM测量结果和Slice ID信息，触发多连接数据传输建立/修改的决策，确定所述目标辅基站；
所述第一发送模块1503，设置为根据多连接数据传输建立/修改的决策，通过基站节点间接口将辅基站添加/修改请求消息发送至所述目标辅基站。
进一步地，参见图16，所述装置还包括：触发模块1507；其中，
所述触发模块1507，设置为接收所述终端UE上报的RRM测量结果和Slice ID信息，触发所述主基站进行多连接数据传输建立/修改的决策；
所述第一确定模块1501，设置为所述主基站的本地条件和接收到的所述终端UE上报的RRM测量结果和Slice ID信息进行多连接数据传输操作，确定满足数据分流条件的相邻辅基站为所述目标辅基站。
本发明实施例提供的应用于无线接入网中的主基站的多连接数据传输的无线接入网络切片选择装置的说明可以参考实施例三的多连接数据传输的无线接入网络切片选择方法的说明，本发明实施例在此不再赘述。
在实际应用中，所述第一确定模块1501、匹配模块1502、第一发送模块1503、第一接收模块1504、配置模块1505、第一协同模块1506、、和触发模块1507均可由位于多连接数据传输的无线接入网络切片选择装置15中的中央处理器(Central Processing Unit，CPU)、微处理器(Micro Processor Unit，MPU)、数字信号处理器(Digital Signal Processor，DSP)、或现场可编程门阵列(Field Programmable Gate Array，FPGA)等实现。
本发明实施例提供了一种多连接数据传输的无线接入网络切片选择装置，根据终端UE上报RRM测量结果和Slice ID信息，主基站发送多连接数据传输配置请求信息至相邻辅基站，相邻辅基站根据主基站的配置请求和本地条件做出辅服务RAN Slice切片的选择，主基站根据该辅服务RAN Slice切片的选择信息对终端UE进行多连接数据传输配置，使得终端UE处于和无线接入网中的多个基站节点的最佳切片集，能够更好的适配终端UE的类型、用户和业务特征，获得更佳的数据传输效果。
实施例七
参见图17，其示出了本发明实施例提供的一种多连接数据传输的无线接入网络切片选择装置17，所述装置17应用于无线接入网中与主基站相邻的辅基站，所述装置包括：第二确定模块1701、第二接收模块1702和第二发送模块1703；其中，
所述第二确定模块1701，设置为辅基站和所述主基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站和所述相邻辅基站中的无线接入网切片RAN Slices信息；
以及，确定与所述主基站根据所述无线接入网切片RAN Slices信息建立的RAN Slices优先级匹配关联关系；
以及，确定所述相邻辅基站中被所述主基站选定的目标辅基站；
所述第二接收模块1702，设置为：所述辅基站为所述目标辅基站时，接收所述主基站发送的辅基站添加/修改请求消息与所述优先级匹配关联关系；
所述第二确定模块1701，还设置为根据所述目标辅基站的本地条件和所述辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slice；
所述第二发送模块1703，还设置为发送辅基站添加/修改回复消息至所述主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices。
进一步地，参见图18，所述装置还包括：第二协同模块1704；其中，
所述第二协同模块1704，设置为相邻辅基站中用作辅服务的RAN Slices和主基站中用作主服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
所述第二确定模块1701，设置为确定与所述主基站根据所述信息协同结果和预设的规则建立的辅服务RAN Slices与主服务RAN Slices间的优先级匹配关联关系。
进一步地，参见图18，所述装置还包括：选择模块1705；其中，
所述选择模块1705，设置为接收所述主基站发送的所述辅基站添加/修改请求消息，结合所述辅基站自身本地条件，利用所述优先级匹配关联关系从所述主基站请求的优先级最高的RAN Slice开始进行选择；
所述第二确定模块1701，设置为确定满足本地条件的优先级最高的RAN Slice为所述目标辅服务RAN Slice；
所述第二发送模块1703，设置为通过基站节点间接口发送辅基站添加/修改回复消息至主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅服务RAN Slice。
进一步地，所述选择模块1705，设置为当所述优先级匹配关联关系中仅包含终端UE上报的Slice ID或者多维属性描述标识MDD信息时，目标辅基站根据所述Slice ID或者MDD信息选择目标辅服务RAN Slices。
本发明实施例提供的应用于无线接入网中与主基站相邻的辅基站的多连接数据传输的无线接入网络切片选择装置的说明可以参考实施例四的多连接数据传输的无线接入网络切片选择方法的说明，本发明实施例在此不再赘述。
在实际应用中，所述第二确定模块1701、第二接收模块1702、第二发送模块1703、第二协同模块1704和选择模块1705均可由位于多连接数据传输的无线接入网络切片选择装置17中的CPU、MPU、DSP、或FPGA等实现。
本发明实施例提供了一种多连接数据传输的无线接入网络切片选择装置，根据终端UE上报RRM测量结果和Slice ID信息，主基站发送多连接 数据传输配置请求信息至相邻辅基站，相邻辅基站根据主基站的配置请求和本地条件做出辅服务RAN Slice切片的选择，主基站根据该辅服务RAN Slice切片的选择信息对终端UE进行多连接数据传输配置，使得终端UE处于和无线接入网中的多个基站节点的最佳切片集，能够更好的适配终端UE的类型、用户和业务特征，获得更佳的数据传输效果。
本发明实施例还提供了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现如图7～图10所述无线接入网络切片选择方法。本发明实施例还提供了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现如图11～图14所述无线接入网络切片选择方法。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机 实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的实施例而已，并非用于限定本申请的保护范围。
工业实用性
本发明实施例提供了一种无线接入网络切片选择方法和装置，根据终端UE上报RRM测量结果和Slice ID信息，主基站发送多连接数据传输配置请求信息至相邻辅基站，相邻辅基站根据主基站的配置请求和本地条件做出辅服务RAN Slice切片的选择，主基站根据该辅服务RAN Slice切片的选择信息对终端UE进行多连接数据传输配置，使得终端UE处于和无线接入网中的多个基站节点的最佳切片集，能够更好的适配终端UE的类型、用户和业务特征，获得更佳的数据传输效果。

Claims (18)

  1. 一种无线接入网络切片选择方法，应用于无线接入网中的主基站，所述方法包括：
    无线接入网中的主基站和相邻辅基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站与所述相邻辅基站中的无线接入网切片RAN Slices信息；
    所述主基站根据所述无线接入网切片RAN Slices信息，建立与所述相邻辅基站中RAN Slices的优先级匹配关联关系；
    所述主基站根据自身的本地条件和终端UE上报的无线资源管理RRM测量结果和切片标识Slice ID信息从所述相邻辅基站中确定目标辅基站，并将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站；
    所述主基站接收所述目标辅基站发送的辅基站添加/修改回复消息，并通过无线资源控制RRC消息对所述终端UE进行多连接数据传输配置；其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices。
  2. 根据权利要求1所述的方法，其中，所述主基站根据所述无线接入网切片RAN Slices信息，建立与所述相邻辅基站中RAN Slices的优先级匹配关联关系，包括：
    所述主基站中用作主服务的RAN Slices和所述相邻辅基站中用作辅服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
    根据所述信息协同的结果和预设的规则建立所述主服务RAN Slices与所述辅服务RAN Slices间的优先级匹配关联关系。
  3. 根据权利要求1所述的方法，其中，所述主基站根据自身的本地条件和终端UE上报的无线资源管理RRM测量结果和切片标识Slice ID信息从所述相邻辅基站中确定目标辅基站，并将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站，包括：
    所述主基站根据自身的本地条件和接收到的终端UE上报的RRM测量结果与Slice ID信息，触发多连接数据传输建立/修改的决策，确定所述目标辅基站；
    根据多连接数据传输建立/修改的决策，所述主基站通过基站节点间接口将辅基站添加/修改请求消息发送至所述目标辅基站。
  4. 根据权利要求3所述的方法，其中，所述主基站根据自身的本地条件和接收到的终端UE上报的RRM测量结果与Slice ID信息，触发多连接数据传输建立/修改的决策，确定所述目标辅基站，包括：
    所述主基站接收所述终端UE上报的RRM测量结果和Slice ID信息，触发所述主基站进行多连接数据传输建立/修改的决策；
    所述主基站根据自身的本地条件和接收到的所述终端UE上报的RRM测量结果和Slice ID信息进行多连接数据传输操作，确定满足数据分流条件的相邻辅基站为所述目标辅基站。
  5. 一种无线接入网络切片选择方法，应用于无线接入网中与主基站相邻的辅基站，所述方法包括：
    无线接入网中与主基站相邻的辅基站和所述主基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站和所述相邻辅基站中的无线接入网切片RAN Slices信息；
    所述相邻辅基站确定与所述主基站根据所述无线接入网切片RAN Slices信息建立的RAN Slices优先级匹配关联关系；
    确定所述相邻辅基站中被所述主基站选定的目标辅基站，所述目标辅基站接收所述主基站发送的辅基站添加/修改请求消息与所述优先级匹配关联关系；
    所述目标辅基站根据自身的本地条件和所述辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slices，并发送辅基站添加/修改回复消息至所述主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices。
  6. 根据权利要求5所述的方法，其中，所述相邻辅基站确定与所述主基站根据所述无线接入网切片RAN Slices信息建立的RAN Slices优先级匹配关联关系，包括：
    相邻辅基站中用作辅服务的RAN Slices和主基站中用作主服务的RANSlices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
    确定与所述主基站根据所述信息协同的结果和预设的规则建立的辅服务RAN Slices与主服务RAN Slices间的优先级匹配关联关系。
  7. 根据权利要求5所述的方法，其中，所述目标辅基站根据自身的本地条件和辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slices，并发送辅基站添加/修改回复消息至所述主基站，包括：
    所述目标辅基站接收所述主基站发送的所述辅基站添加/修改请求消息，结合自身本地条件，利用所述优先级匹配关联关系从所述主基站请求的优先级最高的RAN Slices开始进行选择；
    确定满足本地条件的优先级最高的RAN Slices为所述目标辅服务RAN Slices；
    所述目标辅基站通过基站节点间接口发送辅基站添加/修改回复消息至主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅服务RAN Slices。
  8. 根据权利要求5所述的方法，其中，所述目标辅基站根据自身的本地条件和辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slices，包括：
    当所述优先级匹配关联关系中仅包含终端UE上报的Slice ID或者多维属性描述标识MDD信息时，目标辅基站根据所述Slice ID或者MDD信息选择目标辅服务RAN Slices。
  9. 一种无线接入网络切片选择装置，应用于无线接入网中的主基站，所述装置包括：第一确定模块、匹配模块、第一发送模块、第一接收模块和 配置模块；其中，
    所述第一确定模块，设置为和相邻辅基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站与所述相邻辅基站中的无线接入网切片RAN Slices信息；
    所述匹配模块，设置为根据所述无线接入网切片RAN Slices信息，建立与所述相邻辅基站中RAN Slices的优先级匹配关联关系；
    所述第一确定模块，还设置为根据所述主基站的本地条件和终端UE上报的RRM测量结果和Slice ID信息从所述相邻辅基站中确定目标辅基站；
    所述第一发送模块，设置为将辅基站添加/修改请求消息与所述优先级匹配关联关系发送至所述目标辅基站；
    所述第一接收模块，设置为接收所述目标辅基站发送的辅基站添加/修改回复消息，其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices；
    所述配置模块，设置为通过无线资源控制RRC消息对所述终端UE进行多连接数据传输配置。
  10. 根据权利要求9所述的装置，所述装置还包括：第一协同模块；其中，
    所述第一协同模块，设置为所述主基站中用作主服务的RAN Slices和所述相邻辅基站中用作辅服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
    所述匹配模块，设置为根据所述信息协同的结果和预设的规则建立所述主服务RAN Slices与所述辅服务RAN Slices间的优先级匹配关联关系。
  11. 根据权利要求9所述的装置，其中，
    所述第一确定模块，设置为根据所述主基站的本地条件和接收到的终端UE上报的RRM测量结果和Slice ID信息，触发多连接数据传输建立/修改的决策，确定所述目标辅基站；
    所述第一发送模块，设置为根据多连接数据传输建立/修改的决策，通过基站节点间接口将辅基站添加/修改请求消息发送至所述目标辅基站。
  12. 根据权利要求11所述的装置，所述装置还包括：触发模块；其中，
    所述触发模块，设置为接收所述终端UE上报的RRM测量结果和Slice ID信息，触发所述主基站进行多连接数据传输建立/修改的决策；
    所述第一确定模块，设置为根据所述主基站的本地条件和接收到的所述终端UE上报的RRM测量结果和Slice ID信息进行多连接数据传输操作，确定满足数据分流条件的相邻辅基站为所述目标辅基站。
  13. 一种无线接入网络切片选择装置，应用于无线接入网中与主基站相邻的辅基站，所述装置包括：第二确定模块、第二接收模块和第二发送模块；其中，
    所述第二确定模块，设置为和所述主基站分别与核心网构建网络切片端到端的对应关系，根据所述网络切片端到端的对应关系确定所述主基站和所述相邻辅基站中的无线接入网切片RAN Slices信息；
    以及，确定与所述主基站根据所述无线接入网切片RAN Slices信息建立的RAN Slices优先级匹配关联关系；
    以及，确定所述相邻辅基站中被所述主基站选定的目标辅基站；
    所述第二接收模块，设置为：所述辅基站为所述目标辅基站时，接收所述主基站发送的辅基站添加/修改请求消息与所述优先级匹配关联关系；
    所述第二确定模块，还设置为根据所述目标辅基站的本地条件和所述辅基站添加/修改请求消息，利用所述优先级匹配关联关系确定目标辅服务RAN Slice；
    所述第二发送模块，还设置为发送辅基站添加/修改回复消息至所述主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅基站根据所述优先级匹配关联关系选择的目标辅服务RAN Slices。
  14. 根据权利要求13所述的装置，所述装置还包括：第二协同模块；其中，
    所述第二协同模块，设置为相邻辅基站中用作辅服务的RAN Slices和主基站中用作主服务的RAN Slices通过基站节点间接口的公共流程进行信息协同，交换RAN Slices切分信息与工作状态；
    所述第二确定模块，设置为确定与所述主基站根据所述信息协同结果和预设的规则建立的辅服务RAN Slices与主服务RAN Slices间的优先级匹配关联关系。
  15. 根据权利要求13所述的装置，所述装置还包括：选择模块；其中，
    所述选择模块，设置为接收所述主基站发送的所述辅基站添加/修改请求消息，结合所述辅基站自身本地条件，利用所述优先级匹配关联关系从所述主基站请求的优先级最高的RAN Slice开始进行选择；
    所述第二确定模块，设置为确定满足本地条件的优先级最高的RAN Slice为所述目标辅服务RAN Slice；
    所述第二发送模块，设置为通过基站节点间接口发送辅基站添加/修改回复消息至主基站；其中，所述辅基站添加/修改回复消息中包含所述目标辅服务RAN Slice。
  16. 根据权利要求13所述的装置，其中，
    所述选择模块，设置为当所述优先级匹配关联关系中仅包含终端UE上报的Slice ID或者多维属性描述标识MDD信息时，目标辅基站根据所述Slice ID或者MDD信息选择目标辅服务RAN Slices。
  17. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1-4任一项的无线接入网络切片选择方法。
  18. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求5-8任一项的无线接入网络切片选择方法。
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