WO2020034983A1 - 切片映射重映射方法及接入网网元 - Google Patents

切片映射重映射方法及接入网网元 Download PDF

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WO2020034983A1
WO2020034983A1 PCT/CN2019/100525 CN2019100525W WO2020034983A1 WO 2020034983 A1 WO2020034983 A1 WO 2020034983A1 CN 2019100525 W CN2019100525 W CN 2019100525W WO 2020034983 A1 WO2020034983 A1 WO 2020034983A1
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Prior art keywords
slice
access network
network element
mapping
information
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PCT/CN2019/100525
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English (en)
French (fr)
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陈亚迷
李刚
韩双锋
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2020034983A1 publication Critical patent/WO2020034983A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

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  • the present disclosure relates to the field of wireless communication technologies, and in particular, to a slice mapping remapping method and an access network element.
  • 5G network slicing is an important tool for operators to meet highly differentiated 5G vertical application scenarios and provide horizontal support platforms. Important features of network slicing include meeting differentiated business needs and achieving resource sharing and isolation. Different network coverage areas can be adapted to different communication needs, and different network slices can be configured. Therefore, there is a problem of availability of network slices. In related technologies, a process is designed for transmitting network slice information, enabling sites to exchange slice capability information and slice information for the current session.
  • the related art network supports the transfer of slice information from the process.
  • the network slicing strategy for example, when a user terminal moves to a cell that does not support a current slice, the related technology has not yet provided a mature solution.
  • the technical problem to be solved by the present disclosure is to provide a slice mapping remapping method and an access network network element, which can solve the problem of slice remapping.
  • a slice mapping remapping method is provided and applied to network elements of an access network.
  • the method includes:
  • the method further includes:
  • the slice mapping information includes slice mapping policy information.
  • the slice mapping policy information includes policy information for mapping a slice to other slices.
  • the access network element performs slice remapping based on one or more of the following information: slice identification information, slice feature information, slice index information, and slice mapping strategy.
  • the slice identification information is network slice selection assistance information NSSAI; and / or
  • the slice characteristic information includes at least one of the following: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and / or
  • the slice index information is slice load information.
  • mapping strategy of the slice is pre-configured in the access network element or received from another device;
  • the other equipment includes at least one of the following: a user terminal, other access network elements, a core network element, and a network manager.
  • the access network element passes a PDU session management process, a user context management process, a user mobility process, a paging process, a non-access stratum NAS message transmission process, an interface management process, a user capability management process, and / Or configure a mapping strategy for the delivery process to receive the slice.
  • the access network network element responds through an interface establishment, initial user context establishment, user context modification request, handover request, session establishment request, session modification request, session establishment notification, session modification notification, session establishment indication, session Modify instruction, switch command, path switch request confirmation PATH, SWITH, REQUEST, ACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update, and / or user capability check response.
  • Mapping strategy initial user context establishment, user context modification request, handover request, session establishment request, session modification request, session establishment notification, session modification notification, session establishment indication, session Modify instruction, switch command, path switch request confirmation PATH, SWITH, REQUEST, ACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update, and / or user capability check response.
  • the access network network element performs a handover request, access network paging, user context extraction response, secondary base station addition request, secondary base station modification request, secondary base station replacement request, secondary base station replacement confirmation, interface establishment request,
  • the interface establishment response and / or the access network node update receives a mapping policy of a slice sent by another access network element.
  • the access network element receives the mapping policy of the slice sent by the user terminal through RRC signaling.
  • the network element of the access network receives the mapping policy of the slice sent by the network management through the network management configuration message.
  • mapping strategy of the slice includes:
  • the mapping strategy for the slice further includes: The access network element temporarily configures a slice support capability corresponding to the slice and / or remaps the slice to other slices;
  • the mapping strategy of the slice further includes: the access network element is The address resolution protocol set in the slice enables the slice to preempt resources and / or remap the slice to other slices, where the requirements of the other slices on resources are lower than the requirements of the slices on resources;
  • the mapping strategy of the slice further includes: the access network element temporarily configures the slice support capability corresponding to the slice.
  • the service QoS parameter information or slice QoS information includes service reliability parameter information and / or slice reliability information.
  • An embodiment of the present disclosure further provides a network element of an access network, including a processor and a transceiver,
  • the transceiver is configured to receive slice mapping information of a slice.
  • the processor is configured to remap the slice to other slices.
  • the slice mapping information includes slice mapping policy information.
  • the slice mapping policy information includes policy information for mapping a slice to other slices.
  • the processor is specifically configured to perform slice remapping based on one or more of the following information: slice identification information, slice feature information, slice index information, and slice mapping strategy.
  • the slice identification information is network slice selection assistance information NSSAI; and / or
  • the slice characteristic information includes at least one of the following: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and / or
  • the slice index information is slice load information.
  • mapping strategy of the slice is pre-configured in the access network element or received from another device;
  • the other equipment includes at least one of the following: a user terminal, other access network elements, a core network element, and a network manager.
  • the transceiver is specifically configured to pass a PDU session management process, a user context management process, a user mobility process, a paging process, a non-access stratum NAS message transmission process, an interface management process, a user capability management process, and / Or configure a mapping strategy for the delivery process to receive the slice.
  • the transceiver is specifically configured to respond through an interface establishment, an initial user context establishment, a user context modification request, a switch request, a session establishment request, a session modification request, a session establishment notification, a session modification notification, a session establishment instruction, a session Modify instruction, switch command, path switch request confirmation PATH, SWITH, REQUEST, ACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update, and / or user capability check response. Mapping strategy.
  • the transceiver is specifically configured to use a handover request, access network paging, user context extraction response, secondary base station addition request, secondary base station modification request, secondary base station replacement request, secondary base station replacement confirmation, interface establishment request,
  • the interface establishment response and / or the access network node update receives a mapping policy of a slice sent by another access network element.
  • the transceiver is specifically configured to receive a mapping strategy of a slice sent by a user terminal through RRC signaling.
  • the transceiver is specifically configured to receive, through a network management configuration message, a mapping policy of a slice sent by the network management.
  • mapping strategy of the slice includes:
  • the mapping strategy for the slice further includes: The access network element temporarily configures a slice support capability corresponding to the slice and / or remaps the slice to other slices;
  • the mapping strategy of the slice further includes: the access network element is The address resolution protocol set in the slice enables the slice to preempt resources and / or remap the slice to other slices, where the requirements of the other slices on resources are lower than the requirements of the slices on resources;
  • the mapping strategy of the slice further includes: the access network element temporarily configures the slice support capability corresponding to the slice.
  • the service QoS parameter information or slice QoS information includes service reliability parameter information and / or slice reliability information.
  • An embodiment of the present disclosure further provides an access network element, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements the program when the program is executed.
  • an access network element which includes a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements the program when the program is executed.
  • An embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps in the slice mapping remapping method described above are implemented.
  • the access network element when the slice remapping is performed, the access network element receives the slice mapping information of the slice, so that the access network remaps the slice to other slices according to the slice mapping information, thereby solving the imbalance between sites based on the network slice Distribution, the current network slice of the user terminal may face the problem of remapping.
  • FIG. 1 is a schematic flowchart of a slice mapping remapping method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a user terminal moving out of a service area of a current slice in the related art
  • FIG. 3 is a schematic diagram of a slice mapping strategy according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of interaction between an access network element and other access network elements and a core network element according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of interaction between an access network element and a core network element and a user terminal according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a network element of an access network according to an embodiment of the present disclosure.
  • Embodiments of the present disclosure provide a slice mapping remapping method and an access network network element, which can solve the problem of slice remapping.
  • An embodiment of the present disclosure provides a slice mapping remapping method, which is applied to network elements of an access network. As shown in FIG. 1, the method includes:
  • Step 101 Receive slice mapping information of a slice.
  • the network element of the access network receives the slice mapping information of the slice, so that the access network remaps the slice to other slices according to the slice mapping information, which solves the problem of instability between sites based on the network slice.
  • the current network slice of the user terminal may face the problem of remapping.
  • the method further includes:
  • the slice mapping information includes slice mapping policy information.
  • the slice mapping policy information includes policy information for mapping a slice to other slices.
  • the access network element performs slice remapping based on one or more of the following information: slice identification information, slice feature information, slice index information, and slice mapping strategy.
  • the slice identification information is network slice selection assistance information NSSAI; and / or
  • the slice characteristic information includes at least one of the following: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and / or
  • the slice index information is slice load information.
  • mapping strategy of the slice is pre-configured in the access network element or received from another device;
  • the other equipment includes at least one of the following: a user terminal, other access network elements, a core network element, and a network manager.
  • the access network element passes a PDU session management process, a user context management process, a user mobility process, a paging process, a non-access stratum NAS message transmission process, an interface management process, a user capability management process, and / Or configure a mapping strategy for the delivery process to receive the slice.
  • the access network network element responds through an interface establishment, initial user context establishment, user context modification request, handover request, session establishment request, session modification request, session establishment notification, session modification notification, session establishment indication, session Modify instruction, switch command, path switch request confirmation PATH, SWITH, REQUEST, ACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update, and / or user capability check response.
  • Mapping strategy initial user context establishment, user context modification request, handover request, session establishment request, session modification request, session establishment notification, session modification notification, session establishment indication, session Modify instruction, switch command, path switch request confirmation PATH, SWITH, REQUEST, ACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update, and / or user capability check response.
  • the access network network element performs a handover request, access network paging, user context extraction response, secondary base station addition request, secondary base station modification request, secondary base station replacement request, secondary base station replacement confirmation, interface establishment request,
  • the interface establishment response and / or the access network node update receives a mapping policy of a slice sent by another access network element.
  • the access network element receives the mapping policy of the slice sent by the user terminal through RRC signaling.
  • the network element of the access network receives the mapping strategy of the slice sent by the network management through the network management configuration message.
  • mapping strategy of the slice includes:
  • the mapping strategy for the slice further includes: The access network element temporarily configures a slice support capability corresponding to the slice and / or remaps the slice to other slices;
  • the mapping strategy of the slice further includes: the access network element is The address resolution protocol set in the slice enables the slice to preempt resources and / or remap the slice to other slices, where the requirements of the other slices on resources are lower than the requirements of the slices on resources;
  • the mapping strategy of the slice further includes: the access network element temporarily configures the slice support capability corresponding to the slice.
  • the service QoS parameter information or slice QoS information includes service reliability parameter information and / or slice reliability information.
  • the user terminal after the user terminal moves out of the service area of the current slice, it can accept the slice and occupy other slice resources; it can also be remapped to other slices; and it can also reject the slice. For example, for a slice service that requires user terminal isolation, then once the user terminal leaves the slice coverage area, it should probably not access the corresponding service again. At this time, the network's slice request to the user terminal should be rejected. Or, it is possible that the user terminal is isolated from other slices in order to implement the corresponding slice strategy, and related information interaction on the standard interface may be necessary.
  • the current network slice of the user terminal may face the problem of remapping.
  • An embodiment of the present disclosure provides a slice remapping scheme to access network elements
  • the slice support capability is configured to support the slice and / or remap the slice to other slices according to slice information, a slice mapping strategy, and parameters required for slice mapping execution.
  • the mapping strategy of a slice is a mapping relationship strategy between slices, or the mapping strategy of a slice specifies a default slice, or the mapping strategy of a slice is a mapping relationship from APP (business) to a slice.
  • the mapping strategy of a slice may also include slice rejection. Strategy.
  • the information includes service information, and the service information includes at least one of the following: service continuity information and service QoS parameter information.
  • the service QoS parameter information includes service reliability parameter information.
  • mapping strategy of the service information and the slice is a service quality indicator of the slice.
  • the parameters required for the slice mapping execution include at least one of the following: a service identifier, and remapping optional slice information.
  • the mapping strategy of the slice includes: when the slice is not supported by the access network element and the access network element is not configured with a slice support capability corresponding to the slice, The access network element temporarily configures a slice support capability corresponding to the slice and / or remaps the slice to other slices; the slice is not supported by the access network element, and the connection
  • the access network element sets an address resolution protocol for the slice so that the slice can preempt resources and / or remap the slice to other slices.
  • the resources required by other slices are lower than the resources required by the slices.
  • the access network element (access network element 2) in this embodiment queries other access network elements (access network element 1) or core network element Slice information, slice mapping strategy, and / or information needed for slice mapping strategy execution, such as APP ID, remap optional slice information.
  • the access network element (access network element 1) in this embodiment queries the user terminal or the core network element for slice information, a slice mapping strategy, and / or The information required for the execution of the mapping strategy of the slice, such as APP ID, remaps optional slice information.
  • mapping strategy of the slice may also be pre-configured in the network element of the access network.
  • the continuity problem in the moving process of the slicing service can be solved.
  • the original slice is not currently supported by base station 2.
  • the reasons include: base station 2 is not configured with corresponding capabilities, and base station 2 can temporarily configure corresponding slice support capabilities. , Or remap to another slice, or reject the slice; or base station 2 temporarily does not support the slice because of the resource relationship, then base station 2 can set a high ARP to ensure slice acceptance; or it can be the next best choice and use a low resource occupation Slice; or refuse to slice.
  • An embodiment of the present disclosure further provides an access network element, as shown in FIG. 6, including a processor 21 and a transceiver 22,
  • the transceiver 22 is configured to receive slice mapping information of a slice.
  • the network element of the access network receives the slice mapping information of the slice, so that the access network remaps the slice to other slices according to the slice mapping information, which solves the problem of instability between sites based on network slices.
  • the current network slice of the user terminal may face the problem of remapping.
  • the processor 21 is configured to remap the slice to other slices.
  • the slice mapping information includes slice mapping policy information.
  • the slice mapping policy information includes policy information for mapping a slice to other slices.
  • the processor 21 is specifically configured to perform slice remapping based on one or more of the following information: slice identification information, slice feature information, slice index information, and slice mapping strategy.
  • the slice identification information is network slice selection assistance information NSSAI; and / or
  • the slice characteristic information includes at least one of the following: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and / or
  • the slice index information is slice load information.
  • mapping strategy of the slice is pre-configured in the access network element or received from another device;
  • the other equipment includes at least one of the following: a user terminal, other access network elements, a core network element, and a network manager.
  • the transceiver 22 is specifically configured to pass a PDU session management process, a user context management process, a user mobility process, a paging process, a non-access stratum NAS message transmission process, an interface management process, a user capability management process, and And / or a mapping strategy configured to receive the slice during the delivery process.
  • the transceiver 22 is specifically configured to respond to an interface establishment, an initial user context establishment, a user context modification request, a handover request, a session establishment request, a session modification request, a session establishment notification, a session modification notification, a session establishment instruction, Session modification instruction, switch command, path switch request confirmation PATH, SWITH, ACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update, and / or user capability verification response Mapping strategy.
  • the transceiver 22 is specifically configured to use a handover request, access network paging, user context extraction response, secondary base station addition request, secondary base station modification request, secondary base station replacement request, secondary base station replacement confirmation, and interface establishment request.
  • the interface establishment response and / or the access network node updates the mapping strategy of receiving the slices sent by other access network elements.
  • the transceiver 22 is specifically configured to receive a mapping strategy of a slice sent by a user terminal through RRC signaling.
  • the transceiver 22 is specifically configured to receive a mapping strategy of a slice sent by the network management through a network management configuration message.
  • mapping strategy of the slice includes:
  • the mapping strategy for the slice further includes: The access network element temporarily configures a slice support capability corresponding to the slice and / or remaps the slice to other slices;
  • the mapping strategy of the slice further includes: the access network element is The address resolution protocol set in the slice enables the slice to preempt resources and / or remap the slice to other slices, where the requirements of the other slices on resources are lower than the requirements of the slices on resources;
  • the mapping strategy of the slice further includes: the access network element temporarily configures the slice support capability corresponding to the slice.
  • the service QoS parameter information or slice QoS information includes service reliability parameter information and / or slice reliability information.
  • An embodiment of the present disclosure further provides an access network element, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements the program when the program is executed.
  • an access network element which includes a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements the program when the program is executed.
  • An embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps in the slice mapping remapping method described above are implemented.
  • Computer-readable media includes both permanent and non-persistent, removable and non-removable media.
  • Information can be stored by any method or technology.
  • Information may be computer-readable instructions, data structures, modules of a program, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), and read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, read-only disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, Magnetic tape cartridges, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media may be used to store information that can be accessed by computing devices.
  • computer-readable media does not include temporary computer-readable media, such as modulated data signals and carrier waves.

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Abstract

本公开提供了一种切片映射重映射方法及接入网网元。切片映射重映射方法应用于接入网网元，并且包括：接收切片的切片映射信息。

Description

切片映射重映射方法及接入网网元
相关申请的交叉引用
本申请主张在2018年8月15日在中国提交的中国专利申请No.201810930072.4的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及无线通信技术领域，特别是指一种切片映射重映射方法及接入网网元。
背景技术
5G网络切片是运营商满足高度差异化5G垂直应用场景，提供水平支撑平台的重要利器。网络切片的重要特征包括满足差异化业务需求，实现资源共享和隔离。不同的网络覆盖区域，适配不同的通信需求，可以配置不同的网络切片，因此存在网络切片的可用性(slice availability)问题。相关技术中，针对网络切片信息的传递设计了流程，使能站点之间交互切片能力信息、以及当前会话的切片信息。
尽管相关技术中的网络从流程上支持切片信息的传递。但是对于网络切片策略，比如当用户终端转移到不支持当前某个切片的小区的时候，相关技术尚未提供成熟的解决方案。
发明内容
本公开要解决的技术问题是提供一种切片映射重映射方法及接入网网元，能够解决切片的重映射问题。
为解决上述技术问题，本公开的实施例提供技术方案如下：
一方面，提供一种切片映射重映射方法，应用于接入网网元，所述方法包括：
接收切片的切片映射信息。
可选地，所述方法还包括：
将所述切片重映射到其他切片。
可选地，所述切片映射信息包括切片映射策略信息。
可选地，所述切片映射策略信息包括将切片映射到其他切片的策略信息。
可选地，所述接入网网元基于如下信息中的一个或者多个执行切片重映射：切片标识信息、切片特征信息、切片指标信息、切片映射策略。
可选地，所述切片标识信息为网络切片选择辅助信息NSSAI；和/或
所述切片特征信息包括以下至少一种：业务连续性信息或者切片连续性信息，业务QoS参数信息或者切片QoS信息；和/或
所述切片指标信息为切片负载信息。
可选地，所述切片的映射策略为预配置在所述接入网网元中或从其他设备接收的；
所述其他设备包括以下至少一种：用户终端、其他接入网网元、核心网网元和网管。
可选地，所述接入网网元通过PDU会话管理过程、用户上下文管理过程、用户移动性过程、寻呼过程、非接入层NAS消息传输过程、接口管理过程、用户能力管理过程和/或配置传递过程接收所述切片的映射策略。
可选地，所述接入网网元通过接口建立响应、初始用户上下文建立、用户上下文修改请求、切换请求、会话建立请求、会话修改请求、会话建立通知、会话修改通知、会话建立指示、会话修改指示、切换命令、路径切换请求确认PATH SWITH REQUEST ACKNOWLEDGEMENT、寻呼、下行NAS传输、接口建立响应、RAN配置更新确认、AMF配置更新和/或用户能力核查响应接收核心网网元发送的切片的映射策略。
可选地，所述接入网网元通过切换请求、接入网络寻呼、用户上下文提取响应、辅基站添加请求、辅基站修改请求、辅基站更换请求、辅基站更换确认、接口建立请求、接口建立响应和/或接入网节点更新接收其他接入网网元发送的切片的映射策略。
可选地，所述接入网网元通过RRC信令接收用户终端发送的切片的映射策略。
可选地，所述接入网网元通过网管配置消息接收网管发送的切片的映射 策略。
可选地，所述切片的映射策略包括：
将所述切片重映射到其他切片，和/或拒绝所述切片。
可选地，在所述切片不被所述接入网网元支持，且所述接入网网元未配置与所述切片对应的切片支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力和/或将所述切片重映射到其他切片；
和/或
在所述切片不被所述接入网网元支持，且所述接入网网元没有支持所述切片的资源时，所述切片的映射策略还包括：所述接入网网元为所述切片设置地址解析协议使得所述切片能够抢占资源和/或将所述切片重映射到其他切片，所述其他切片对资源的要求低于所述切片对资源的要求；
当服务的接入网网元未配置所述切片的支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力。
可选地，所述业务QoS参数信息或者切片QoS信息，包括业务可靠性参数信息和/或切片可靠性信息。
本公开实施例还提供了一种接入网网元，包括处理器和收发器，
所述收发器用于接收切片的切片映射信息。
可选地，所述处理器用于将所述切片重映射到其他切片。
可选地，所述切片映射信息包括切片映射策略信息。
可选地，所述切片映射策略信息包括将切片映射到其他切片的策略信息。
可选地，所述处理器具体用于基于如下信息中的一个或者多个执行切片重映射：切片标识信息、切片特征信息、切片指标信息、切片映射策略。
可选地，所述切片标识信息为网络切片选择辅助信息NSSAI；和/或
所述切片特征信息包括以下至少一种：业务连续性信息或者切片连续性信息，业务QoS参数信息或者切片QoS信息；和/或
所述切片指标信息为切片负载信息。
可选地，所述切片的映射策略为预配置在所述接入网网元中或从其他设备接收的；
所述其他设备包括以下至少一种：用户终端、其他接入网网元、核心网网元和网管。
可选地，所述收发器具体用于通过PDU会话管理过程、用户上下文管理过程、用户移动性过程、寻呼过程、非接入层NAS消息传输过程、接口管理过程、用户能力管理过程和/或配置传递过程接收所述切片的映射策略。
可选地，所述收发器具体用于通过接口建立响应、初始用户上下文建立、用户上下文修改请求、切换请求、会话建立请求、会话修改请求、会话建立通知、会话修改通知、会话建立指示、会话修改指示、切换命令、路径切换请求确认PATH SWITH REQUEST ACKNOWLEDGEMENT、寻呼、下行NAS传输、接口建立响应、RAN配置更新确认、AMF配置更新和/或用户能力核查响应接收核心网网元发送的切片的映射策略。
可选地，所述收发器具体用于通过切换请求、接入网络寻呼、用户上下文提取响应、辅基站添加请求、辅基站修改请求、辅基站更换请求、辅基站更换确认、接口建立请求、接口建立响应和/或接入网节点更新接收其他接入网网元发送的切片的映射策略。
可选地，所述收发器具体用于通过RRC信令接收用户终端发送的切片的映射策略。
可选地，所述所述收发器具体用于通过网管配置消息接收网管发送的切片的映射策略。
可选地，所述切片的映射策略包括：
将所述切片重映射到其他切片，和/或拒绝所述切片。
可选地，在所述切片不被所述接入网网元支持，且所述接入网网元未配置与所述切片对应的切片支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力和/或将所述切片重映射到其他切片；
和/或
在所述切片不被所述接入网网元支持，且所述接入网网元没有支持所述切片的资源时，所述切片的映射策略还包括：所述接入网网元为所述切片设置地址解析协议使得所述切片能够抢占资源和/或将所述切片重映射到其他 切片，所述其他切片对资源的要求低于所述切片对资源的要求；
当服务的接入网网元未配置所述切片的支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力。
可选地，所述业务QoS参数信息或者切片QoS信息，包括业务可靠性参数信息和/或切片可靠性信息。
本公开实施例还提供了一种接入网网元，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述处理器执行所述程序时实现如上所述的切片映射重映射方法。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如上所述的切片映射重映射方法中的步骤。
本公开的实施例具有以下有益效果：
上述方案中，在切片重映射时，接入网网元接收切片的切片映射信息，以便接入网根据切片映射信息将切片重映射到其他切片，解决了基于网络切片在站点之间的不平衡的分布，用户终端当前的网络切片可能会面临重新映射的问题。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例切片映射重映射方法的流程示意图；
图2为相关技术中用户终端移动出当前切片的服务区域的示意图；
图3为本公开实施例的切片的映射策略的示意图；
图4为本公开实施例接入网网元与其他接入网网元和核心网网元的交互示意图；
图5为本公开实施例接入网网元与核心网网元和用户终端的交互示意图；
图6为本公开实施例接入网网元的结构示意图。
具体实施方式
为使本公开的实施例要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本公开的实施例提供一种切片映射重映射方法及接入网网元，能够解决切片的重映射问题。
本公开实施例提供一种切片映射重映射方法，应用于接入网网元，如图1所示，所述方法包括：
步骤101：接收切片的切片映射信息。
本实施例中，在切片重映射时，接入网网元接收切片的切片映射信息，以便接入网根据切片映射信息将切片重映射到其他切片，解决了基于网络切片在站点之间的不平衡的分布，用户终端当前的网络切片可能会面临重新映射的问题。
可选地，所述方法还包括：
将所述切片重映射到其他切片。
可选地，所述切片映射信息包括切片映射策略信息。
可选地，所述切片映射策略信息包括将切片映射到其他切片的策略信息。
可选地，所述接入网网元基于如下信息中的一个或者多个执行切片重映射：切片标识信息、切片特征信息、切片指标信息、切片映射策略。
可选地，所述切片标识信息为网络切片选择辅助信息NSSAI；和/或
所述切片特征信息包括以下至少一种：业务连续性信息或者切片连续性信息，业务QoS参数信息或者切片QoS信息；和/或
所述切片指标信息为切片负载信息。
可选地，所述切片的映射策略为预配置在所述接入网网元中或从其他设备接收的；
所述其他设备包括以下至少一种：用户终端、其他接入网网元、核心网网元和网管。
可选地，所述接入网网元通过PDU会话管理过程、用户上下文管理过程、用户移动性过程、寻呼过程、非接入层NAS消息传输过程、接口管理过程、用户能力管理过程和/或配置传递过程接收所述切片的映射策略。
可选地，所述接入网网元通过接口建立响应、初始用户上下文建立、用户上下文修改请求、切换请求、会话建立请求、会话修改请求、会话建立通知、会话修改通知、会话建立指示、会话修改指示、切换命令、路径切换请求确认PATH SWITH REQUEST ACKNOWLEDGEMENT、寻呼、下行NAS传输、接口建立响应、RAN配置更新确认、AMF配置更新和/或用户能力核查响应接收核心网网元发送的切片的映射策略。
可选地，所述接入网网元通过切换请求、接入网络寻呼、用户上下文提取响应、辅基站添加请求、辅基站修改请求、辅基站更换请求、辅基站更换确认、接口建立请求、接口建立响应和/或接入网节点更新接收其他接入网网元发送的切片的映射策略。
可选地，所述接入网网元通过RRC信令接收用户终端发送的切片的映射策略。
可选地，所述接入网网元通过网管配置消息接收网管发送的切片的映射策略。
可选地，所述切片的映射策略包括：
将所述切片重映射到其他切片，和/或拒绝所述切片。
可选地，在所述切片不被所述接入网网元支持，且所述接入网网元未配置与所述切片对应的切片支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力和/或将所述切片重映射到其他切片；
和/或
在所述切片不被所述接入网网元支持，且所述接入网网元没有支持所述切片的资源时，所述切片的映射策略还包括：所述接入网网元为所述切片设置地址解析协议使得所述切片能够抢占资源和/或将所述切片重映射到其他切片，所述其他切片对资源的要求低于所述切片对资源的要求；
当服务的接入网网元未配置所述切片的支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力。
可选地，所述业务QoS参数信息或者切片QoS信息，包括业务可靠性参数信息和/或切片可靠性信息。
如图2所示，在用户终端移动出当前切片的服务区域后，可以接纳切片，挤占其他切片资源；也可以重映射到其他切片；还可以拒绝切片。比如，对于一个要求用户终端隔离的切片业务，那么，用户终端一旦离开了这个切片覆盖区，可能就不应该再接入对应的业务。这时候网络对该用户终端的切片请求应该予以拒绝。或者，可能地，用户终端在某个切片下，就隔离了其他为了实现对应切片策略，标准接口上相关的信息交互可能是必要的。但是，在用户终端需要重映射到其他切片时，切片的映射策略的制定和配置是什么，谁来决策，配给谁，涉及什么样的交互，以及切片的映射策略是基于什么样的输入来得到什么样的映射决策的，输入是什么，谁来提供，涉及什么样的交互，相关技术均未提供成熟的方案。
为了解决基于网络切片在接入网网元之间的不平衡的分布，用户终端当前的网络切片可能会面临重新映射的问题，本公开实施例提供一种切片重映射方案，接入网网元根据切片的信息、切片的映射策略以及切片映射执行所需要的参数配置切片支持能力支持所述切片和/或将所述切片重映射到其他切片。
其中，切片的映射策略为切片之间的映射关系策略，或者切片的映射策略规范了默认切片，或者切片的映射策略为APP(业务)到切片的映射关系，切片的映射策略也可以包含切片拒绝策略。
其中，所述信息包括业务信息，所述业务信息包括以下至少一种：业务连续性信息，业务QoS参数信息。所述业务QoS参数信息包括业务可靠性参数信息。
可选地，所述业务信息和所述切片的映射策略为所述切片的服务质量指标。
可选地，所述切片映射执行所需要的参数包括以下至少一种：业务标识，重映射可选的切片信息。
如图3所示，所述切片的映射策略包括：在所述切片不被所述接入网网元支持，且所述接入网网元未配置与所述切片对应的切片支持能力时，所述接入网网元临时配置与所述切片对应的切片支持能力和/或将所述切片重映射到其他切片；在所述切片不被所述接入网网元支持，且所述接入网网元没 有支持所述切片的资源时，所述接入网网元为所述切片设置地址解析协议使得所述切片能够抢占资源和/或将所述切片重映射到其他切片，所述其他切片对资源的要求低于所述切片对资源的要求。
一具体实施例中，如图4所示，本实施例的接入网网元(接入网网元二)向其他接入网网元(接入网网元一)或核心网网元询问切片信息、切片的映射策略，和/或，切片的映射策略执行所需的信息，比如APP ID，重映射可选的切片信息。另一具体实施例中，如图5所示，本实施例的接入网网元(接入网网元一)向用户终端或核心网网元询问切片信息、切片的映射策略，和/或，切片的映射策略执行所需的信息，比如APP ID，重映射可选的切片信息。
可选地，切片的映射策略还可以预配置在接入网网元中。
通过本实施例的技术方案，可以解决切片业务移动过程中的连续性问题。一具体场景中，假设用户1从基站1移动到基站2，然而其本来的切片现在不被基站2所支持，理由包括：基站2未配置相应能力，则基站2可以临时配置相应的切片支持能力，或者重映射到其他切片，或者拒绝切片；或者基站2因为资源关系暂时不支持该切片，则基站2可以设置高的ARP，可以保证切片接纳；或者可以退而求其次，采用低资源占用的切片；或者拒绝切片。对于某些切片，可能需要较好的保证业务连续性，以保证用户体验，这种情况下就不能拒绝切片。
本公开实施例还提供了一种接入网网元，如图6所示，包括处理器21和收发器22，
所述收发器22用于接收切片的切片映射信息。
本实施例中，在切片重映射时，接入网网元接收切片的切片映射信息，以便接入网根据切片映射信息将切片重映射到其他切片，解决了基于网络切片在站点之间的不平衡的分布，用户终端当前的网络切片可能会面临重新映射的问题。
可选地，所述处理器21用于将所述切片重映射到其他切片。
可选地，所述切片映射信息包括切片映射策略信息。
可选地，所述切片映射策略信息包括将切片映射到其他切片的策略信息。
可选地，所述处理器21具体用于基于如下信息中的一个或者多个执行切 片重映射：切片标识信息、切片特征信息、切片指标信息、切片映射策略。
可选地，所述切片标识信息为网络切片选择辅助信息NSSAI；和/或
所述切片特征信息包括以下至少一种：业务连续性信息或者切片连续性信息，业务QoS参数信息或者切片QoS信息；和/或
所述切片指标信息为切片负载信息。
可选地，所述切片的映射策略为预配置在所述接入网网元中或从其他设备接收的；
所述其他设备包括以下至少一种：用户终端、其他接入网网元、核心网网元和网管。
可选地，所述收发器22具体用于通过PDU会话管理过程、用户上下文管理过程、用户移动性过程、寻呼过程、非接入层NAS消息传输过程、接口管理过程、用户能力管理过程和/或配置传递过程接收所述切片的映射策略。
可选地，所述收发器22具体用于通过接口建立响应、初始用户上下文建立、用户上下文修改请求、切换请求、会话建立请求、会话修改请求、会话建立通知、会话修改通知、会话建立指示、会话修改指示、切换命令、路径切换请求确认PATH SWITH REQUEST ACKNOWLEDGEMENT、寻呼、下行NAS传输、接口建立响应、RAN配置更新确认、AMF配置更新和/或用户能力核查响应接收核心网网元发送的切片的映射策略。
可选地，所述收发器22具体用于通过切换请求、接入网络寻呼、用户上下文提取响应、辅基站添加请求、辅基站修改请求、辅基站更换请求、辅基站更换确认、接口建立请求、接口建立响应和/或接入网节点更新接收其他接入网网元发送的切片的映射策略。
可选地，所述收发器22具体用于通过RRC信令接收用户终端发送的切片的映射策略。
可选地，所述所述收发器22具体用于通过网管配置消息接收网管发送的切片的映射策略。
可选地，所述切片的映射策略包括：
将所述切片重映射到其他切片，和/或拒绝所述切片。
可选地，在所述切片不被所述接入网网元支持，且所述接入网网元未配 置与所述切片对应的切片支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力和/或将所述切片重映射到其他切片；
和/或
在所述切片不被所述接入网网元支持，且所述接入网网元没有支持所述切片的资源时，所述切片的映射策略还包括：所述接入网网元为所述切片设置地址解析协议使得所述切片能够抢占资源和/或将所述切片重映射到其他切片，所述其他切片对资源的要求低于所述切片对资源的要求；
当服务的接入网网元未配置所述切片的支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力。
可选地，所述业务QoS参数信息或者切片QoS信息，包括业务可靠性参数信息和/或切片可靠性信息。
本公开实施例还提供了一种接入网网元，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序；所述处理器执行所述程序时实现如上所述的切片映射重映射方法。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现如上所述的切片映射重映射方法中的步骤。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
以上所述是本公开的可选的实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进 和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (32)

  1. 一种切片映射重映射方法，应用于接入网网元，所述方法包括：
    接收切片的切片映射信息。
  2. 根据权利要求1所述的切片映射重映射方法，其中，所述方法还包括：
    将所述切片重映射到其他切片。
  3. 根据权利要求1所述的切片映射重映射方法，其中，所述切片映射信息包括切片映射策略信息。
  4. 根据权利要求3所述的切片映射重映射方法，其中，所述切片映射策略信息包括将切片映射到其他切片的策略信息。
  5. 根据权利要求2所述的切片映射重映射方法，其中，所述接入网网元基于如下信息中的一个或者多个执行切片重映射：切片标识信息、切片特征信息、切片指标信息、切片映射策略。
  6. 根据权利要求5所述的切片映射重映射方法，其中，所述切片标识信息为网络切片选择辅助信息NSSAI；和/或
    所述切片特征信息包括以下至少一种：业务连续性信息或者切片连续性信息，业务QoS参数信息或者切片QoS信息；和/或
    所述切片指标信息为切片负载信息。
  7. 根据权利要求1所述的切片映射重映射方法，其中，所述切片的映射策略为预配置在所述接入网网元中或从其他设备接收的；
    所述其他设备包括以下至少一种：用户终端、其他接入网网元、核心网网元和网管。
  8. 根据权利要求7所述的切片映射重映射方法，其中，所述接入网网元通过PDU会话管理过程、用户上下文管理过程、用户移动性过程、寻呼过程、非接入层NAS消息传输过程、接口管理过程、用户能力管理过程和/或配置传递过程接收所述切片的映射策略。
  9. 根据权利要求7所述的切片映射重映射方法，其中，所述接入网网元通过接口建立响应、初始用户上下文建立、用户上下文修改请求、切换请求、会话建立请求、会话修改请求、会话建立通知、会话修改通知、会话建 立指示、会话修改指示、切换命令、路径切换请求确认PATH SWITH REQUEST ACKNOWLEDGEMENT、寻呼、下行NAS传输、接口建立响应、RAN配置更新确认、AMF配置更新和/或用户能力核查响应接收核心网网元发送的切片的映射策略。
  10. 根据权利要求7所述的切片映射重映射方法，其中，所述接入网网元通过切换请求、接入网络寻呼、用户上下文提取响应、辅基站添加请求、辅基站修改请求、辅基站更换请求、辅基站更换确认、接口建立请求、接口建立响应和/或接入网节点更新接收其他接入网网元发送的切片的映射策略。
  11. 根据权利要求7所述的切片映射重映射方法，其中，所述接入网网元通过RRC信令接收用户终端发送的切片的映射策略。
  12. 根据权利要求7所述的切片映射重映射方法，其中，所述接入网网元通过网管配置消息接收网管发送的切片的映射策略。
  13. 根据权利要求1所述的切片映射重映射方法，其中，所述切片的映射策略包括：
    将所述切片重映射到其他切片，和/或拒绝所述切片。
  14. 根据权利要求13所述的切片映射重映射方法，其中，在所述切片不被所述接入网网元支持，且所述接入网网元未配置与所述切片对应的切片支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力和/或将所述切片重映射到其他切片；
    和/或
    在所述切片不被所述接入网网元支持，且所述接入网网元没有支持所述切片的资源时，所述切片的映射策略还包括：所述接入网网元为所述切片设置地址解析协议使得所述切片能够抢占资源和/或将所述切片重映射到其他切片，所述其他切片对资源的要求低于所述切片对资源的要求；
    当服务的接入网网元未配置所述切片的支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力。
  15. 根据权利要求6所述的切片映射重映射方法，其中，所述业务QoS参数信息或者切片QoS信息，包括业务可靠性参数信息和/或切片可靠性信息。
  16. 一种接入网网元，包括处理器和收发器，
    所述收发器用于接收切片的切片映射信息。
  17. 根据权利要求16所述的接入网网元，其中，所述处理器用于将所述切片重映射到其他切片。
  18. 根据权利要求16所述的接入网网元，其中，所述切片映射信息包括切片映射策略信息。
  19. 根据权利要求18所述的接入网网元，其中，所述切片映射策略信息包括将切片映射到其他切片的策略信息。
  20. 根据权利要求17所述的接入网网元，其中，所述处理器具体用于基于如下信息中的一个或者多个执行切片重映射：切片标识信息、切片特征信息、切片指标信息、切片映射策略。
  21. 根据权利要求20所述的接入网网元，其中，所述切片标识信息为网络切片选择辅助信息NSSAI；和/或
    所述切片特征信息包括以下至少一种：业务连续性信息或者切片连续性信息，业务QoS参数信息或者切片QoS信息；和/或
    所述切片指标信息为切片负载信息。
  22. 根据权利要求16所述的接入网网元，其中，所述切片的映射策略为预配置在所述接入网网元中或从其他设备接收的；
    所述其他设备包括以下至少一种：用户终端、其他接入网网元、核心网网元和网管。
  23. 根据权利要求22所述的接入网网元，其中，所述收发器具体用于通过PDU会话管理过程、用户上下文管理过程、用户移动性过程、寻呼过程、非接入层NAS消息传输过程、接口管理过程、用户能力管理过程和/或配置传递过程接收所述切片的映射策略。
  24. 根据权利要求22所述的接入网网元，其中，所述收发器具体用于通过接口建立响应、初始用户上下文建立、用户上下文修改请求、切换请求、会话建立请求、会话修改请求、会话建立通知、会话修改通知、会话建立指示、会话修改指示、切换命令、路径切换请求确认PATH SWITH REQUEST ACKNOWLEDGEMENT、寻呼、下行NAS传输、接口建立响应、RAN配置更新确认、AMF配置更新和/或用户能力核查响应接收核心网网元发送的切片 的映射策略。
  25. 根据权利要求22所述的接入网网元，其中，所述收发器具体用于通过切换请求、接入网络寻呼、用户上下文提取响应、辅基站添加请求、辅基站修改请求、辅基站更换请求、辅基站更换确认、接口建立请求、接口建立响应和/或接入网节点更新接收其他接入网网元发送的切片的映射策略。
  26. 根据权利要求22所述的接入网网元，其中，所述收发器具体用于通过RRC信令接收用户终端发送的切片的映射策略。
  27. 根据权利要求22所述的接入网网元，其中，所述所述收发器具体用于通过网管配置消息接收网管发送的切片的映射策略。
  28. 根据权利要求16所述的接入网网元，其中，所述切片的映射策略包括：
    将所述切片重映射到其他切片，和/或拒绝所述切片。
  29. 根据权利要求28所述的接入网网元，其中，在所述切片不被所述接入网网元支持，且所述接入网网元未配置与所述切片对应的切片支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力和/或将所述切片重映射到其他切片；
    和/或
    在所述切片不被所述接入网网元支持，且所述接入网网元没有支持所述切片的资源时，所述切片的映射策略还包括：所述接入网网元为所述切片设置地址解析协议使得所述切片能够抢占资源和/或将所述切片重映射到其他切片，所述其他切片对资源的要求低于所述切片对资源的要求；
    当服务的接入网网元未配置所述切片的支持能力时，所述切片的映射策略还包括：所述接入网网元临时配置与所述切片对应的切片支持能力。
  30. 根据权利要求21所述的接入网网元，其中，所述业务QoS参数信息或者切片QoS信息，包括业务可靠性参数信息和/或切片可靠性信息。
  31. 一种接入网网元，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序；其中，所述处理器执行所述程序时实现如权利要求1-15中任一项所述的切片映射重映射方法。
  32. 一种计算机可读存储介质，其上存储有计算机程序，其中，该程序 被处理器执行时实现如权利要求1-15中任一项所述的切片映射重映射方法中的步骤。
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