CN110838927B - Slice mapping remapping method and access network element - Google Patents
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Abstract
本发明提供了一种切片映射重映射方法及接入网网元,属于无线通信技术领域。其中,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和/或切片重映射信息。本发明的技术方案能够解决切片的重映射问题。
The invention provides a slice mapping and remapping method and an access network element, belonging to the technical field of wireless communication. Wherein, the slice mapping and remapping method is applied to an access network element, and the method includes: receiving slice mapping information and/or slice remapping information of a slice. The technical scheme of the invention can solve the problem of slice remapping.
Description
技术领域technical field
本发明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。The present invention relates to the technical field of wireless communication, in particular to a slice mapping and remapping method and an access network element.
背景技术Background technique
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。现有技术中,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。5G network slicing is an important tool for operators to meet highly differentiated 5G vertical application scenarios and provide a horizontal support platform. Important features of network slicing include meeting differentiated business requirements and realizing resource sharing and isolation. Different network coverage areas adapt to different communication requirements, and different network slices can be configured, so there is a problem of network slice availability (slice availability). In the prior art, a process is designed for the transmission of network slicing information, enabling the exchange of slicing capability information and slicing information of the current session between sites.
尽管现有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,现有技术尚未提供成熟的解决方案。Although the existing network supports the transmission of slice information from the process. However, for the network slicing strategy, for example, when the user terminal moves to a cell that does not support a current slice, the existing technology has not yet provided a mature solution.
发明内容Contents of the invention
本发明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。The technical problem to be solved by the present invention is to provide a slice mapping and remapping method and an access network element, which can solve the slice remapping problem.
为解决上述技术问题,本发明的实施例提供技术方案如下:In order to solve the above technical problems, embodiments of the present invention provide technical solutions as follows:
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:In one aspect, a slice mapping and remapping method is provided, which is applied to a network element of an access network, and the method includes:
接收切片的切片映射信息和/或切片重映射信息。Slice mapping information and/or slice remapping information for a slice is received.
进一步地,所述方法还包括:Further, the method also includes:
将所述切片重映射到其他切片。Remaps said slices to other slices.
进一步地,所述切片映射信息包括切片映射策略信息;所述切片重映射信息包括切片重映射策略信息。Further, the slice mapping information includes slice mapping policy information; the slice remapping information includes slice remapping policy information.
进一步地,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、切片重映射策略。Further, the network element of the access network performs slice remapping based on one or more of the following information: slice identification information, slice characteristic information, slice index information, and slice remapping policy.
进一步地,所述切片标识信息为网络切片选择辅助信息NSSAI;和/或Further, the slice identification information is network slice selection auxiliary information NSSAI; and/or
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
所述切片指标信息为切片负载信息。The slice index information is slice load information.
进一步地,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;Further, the mapping policy of the slice is pre-configured in the network element of the access network or received from other devices;
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。The other devices include at least one of the following: user terminals, other access network elements, core network elements, and network managers.
进一步地,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。Further, the network element of the access network uses 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 The configuration delivery process receives the mapping policy for the slice.
进一步地,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 REQUESTACKNOWLEDGEMENT、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。Further, the network element of the access network responds through 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 instruction, session modification Indication, handover command, path switch request confirmation PATH SWITH REQUESTACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update and/or user capability check response Receive the mapping policy of the slice sent by the core network element .
进一步地,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。Further, the network element of the access network transmits a handover request, an access network paging, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement request, a secondary base station replacement confirmation, an interface establishment request, an interface The response is established and/or the access network node updates the mapping strategy for receiving slices sent by other network elements of the access network.
进一步地,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。Further, the network element of the access network receives the slice mapping policy sent by the user terminal through RRC signaling.
进一步地,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。Further, the network element of the access network receives the slice mapping policy sent by the network management through a network management configuration message.
进一步地,所述切片的映射策略包括:Further, the mapping strategy of the slice includes:
将所述切片重映射到其他切片,和/或拒绝所述切片。Remap the slice to other slices, and/or reject the slice.
进一步地,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;Further, when the slice is not supported by the network element of the access network, and the network element of the access network is not configured with a slice support capability corresponding to the slice, the mapping policy of the slice further includes: the The network element of the access network temporarily configures the slice support capability corresponding to the slice and/or remaps the slice to another slice;
和/或and / or
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;When the slice is not supported by the network element of the access network, and the network element of the access network has no resources to support the slice, the mapping policy of the slice further includes: the network element of the access network is the network element of the access network An address resolution protocol is set for the slice so that the slice can seize resources and/or remap the slice to other slices, and the requirements of the other slices for resources are lower than the requirements of the slice for resources;
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。When the serving access network element is not configured with the slice support capability, the slice mapping strategy further includes: the access network element temporarily configuring the slice support capability corresponding to the slice.
进一步地,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。Further, the service QoS parameter information or slice QoS information includes service reliability parameter information and/or slice reliability information.
本发明实施例还提供了一种接入网网元,包括处理器和收发器,The embodiment of the present invention also provides an access network element, including a processor and a transceiver,
所述收发器用于接收切片的切片映射信息和/或切片重映射信息。The transceiver is used for receiving slice mapping information and/or slice remapping information of a slice.
进一步地,所述处理器用于将所述切片重映射到其他切片。Further, the processor is configured to remap the slice to other slices.
进一步地,所述切片映射信息包括切片映射策略信息;所述切片重映射信息包括切片重映射策略信息。Further, the slice mapping information includes slice mapping policy information; the slice remapping information includes slice remapping policy information.
进一步地,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、切片重映射策略。Further, 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 remapping policies.
进一步地,所述切片标识信息为网络切片选择辅助信息NSSAI;和/或Further, the slice identification information is network slice selection auxiliary information NSSAI; and/or
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
所述切片指标信息为切片负载信息。The slice index information is slice load information.
进一步地,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;Further, the mapping policy of the slice is pre-configured in the network element of the access network or received from other devices;
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。The other devices include at least one of the following: user terminals, other access network elements, core network elements, and network managers.
进一步地,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。Further, the transceiver is specifically configured to implement 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 The configuration delivery process receives the mapping policy for the slice.
进一步地,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 REQUESTACKNOWLEDGEMENT、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。Further, the transceiver is specifically used to establish an interface response, 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 modification Indication, handover command, path switch request confirmation PATH SWITH REQUESTACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update and/or user capability check response Receive the mapping policy of the slice sent by the core network element .
进一步地,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。Further, the transceiver is specifically configured to pass a handover request, an access network paging, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement request, a secondary base station replacement confirmation, an interface establishment request, an interface The response is established and/or the access network node updates the mapping strategy for receiving slices sent by other network elements of the access network.
进一步地,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。Further, the transceiver is specifically configured to receive the slice mapping strategy sent by the user terminal through RRC signaling.
进一步地,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。Further, the transceiver is specifically configured to receive the slice mapping policy sent by the network management through a network management configuration message.
进一步地,所述切片的映射策略包括:Further, the mapping strategy of the slice includes:
将所述切片重映射到其他切片,和/或拒绝所述切片。Remap the slice to other slices, and/or reject the slice.
进一步地,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;Further, when the slice is not supported by the network element of the access network, and the network element of the access network is not configured with a slice support capability corresponding to the slice, the mapping policy of the slice further includes: the The network element of the access network temporarily configures the slice support capability corresponding to the slice and/or remaps the slice to another slice;
和/或and / or
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;When the slice is not supported by the network element of the access network, and the network element of the access network has no resources to support the slice, the mapping policy of the slice further includes: the network element of the access network is the network element of the access network An address resolution protocol is set for the slice so that the slice can seize resources and/or remap the slice to other slices, and the requirements of the other slices for resources are lower than the requirements of the slice for resources;
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。When the serving access network element is not configured with the slice support capability, the slice mapping strategy further includes: the access network element temporarily configuring the slice support capability corresponding to the slice.
进一步地,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。Further, the service QoS parameter information or slice QoS information includes service reliability parameter information and/or slice reliability information.
本发明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。The embodiment of the present invention also provides an access network element, including a memory, a processor, and a computer program stored in the memory and operable on the processor; when the processor executes the program, the Slice map remap method as above.
本发明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。An embodiment of the present invention 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.
本发明的实施例具有以下有益效果:Embodiments of the present invention have the following beneficial effects:
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和/或切片重映射信息,以便接入网根据切片映射信息和/或切片重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。In the above solution, during slice remapping, the network element of the access network receives the slice mapping information and/or slice remapping information of the slice, so that the access network remaps the slice to other slices according to the slice mapping information and/or slice remapping information. Slicing solves the problem of unbalanced distribution between sites based on network slicing, and the current network slicing of user terminals may face the problem of remapping.
附图说明Description of drawings
图1为本发明实施例切片映射重映射方法的流程示意图;FIG. 1 is a schematic flowchart of a slice mapping remapping method according to an embodiment of the present invention;
图2为现有技术中用户终端移动出当前切片的服务区域的示意图;FIG. 2 is a schematic diagram of a user terminal moving out of a service area of a current slice in the prior art;
图3为本发明实施例的切片的映射策略的示意图;FIG. 3 is a schematic diagram of a slice mapping strategy according to an embodiment of the present invention;
图4为本发明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;4 is a schematic diagram of interaction between an access network element and other access network elements and core network elements according to an embodiment of the present invention;
图5为本发明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;5 is a schematic diagram of interaction between an access network element, a core network element, and a user terminal according to an embodiment of the present invention;
图6为本发明实施例接入网网元的结构示意图。FIG. 6 is a schematic structural diagram of a network element of an access network according to an embodiment of the present invention.
具体实施方式detailed description
为使本发明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。In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
本发明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。Embodiments of the present invention provide a slice mapping and remapping method and an access network element, which can solve the slice remapping problem.
本发明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:An embodiment of the present invention provides a slice mapping and remapping method, which is applied to an access network element, as shown in FIG. 1 , and the method includes:
步骤101:接收切片的切片映射信息和/或切片重映射信息。Step 101: Receive slice mapping information and/or slice remapping information of a slice.
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和/或切片重映射信息,以便接入网根据切片映射信息和/或切片重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。In this embodiment, during slice remapping, the network element of the access network receives the slice mapping information and/or slice remapping information of the slice, so that the access network remaps the slice to Other slices solve the problem of remapping the current network slices of user terminals based on the unbalanced distribution of network slices among sites.
进一步地,所述方法还包括:Further, the method also includes:
将所述切片重映射到其他切片。Remaps said slices to other slices.
进一步地,所述切片映射信息包括切片映射策略信息;所述切片重映射信息包括切片重映射策略信息。Further, the slice mapping information includes slice mapping policy information; the slice remapping information includes slice remapping policy information.
进一步地,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、切片重映射策略。Further, the network element of the access network performs slice remapping based on one or more of the following information: slice identification information, slice characteristic information, slice index information, and slice remapping policy.
进一步地,所述切片标识信息为网络切片选择辅助信息NSSAI;和/或Further, the slice identification information is network slice selection auxiliary information NSSAI; and/or
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
所述切片指标信息为切片负载信息。The slice index information is slice load information.
进一步地,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;Further, the mapping policy of the slice is pre-configured in the network element of the access network or received from other devices;
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。The other devices include at least one of the following: user terminals, other access network elements, core network elements, and network managers.
进一步地,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。Further, the network element of the access network uses 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 The configuration delivery process receives the mapping policy for the slice.
进一步地,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 REQUESTACKNOWLEDGEMENT、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。Further, the network element of the access network responds through 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 instruction, session modification Indication, handover command, path switch request confirmation PATH SWITH REQUESTACKNOWLEDGEMENT, paging, downlink NAS transmission, interface establishment response, RAN configuration update confirmation, AMF configuration update and/or user capability check response Receive the mapping policy of the slice sent by the core network element .
进一步地,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。Further, the network element of the access network transmits a handover request, an access network paging, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement request, a secondary base station replacement confirmation, an interface establishment request, an interface The response is established and/or the access network node updates the mapping strategy for receiving slices sent by other network elements of the access network.
进一步地,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。Further, the network element of the access network receives the slice mapping policy sent by the user terminal through RRC signaling.
进一步地,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。Further, the network element of the access network receives the slice mapping policy sent by the network management through a network management configuration message.
进一步地,所述切片的映射策略包括:Further, the mapping strategy of the slice includes:
将所述切片重映射到其他切片,和/或拒绝所述切片。Remap the slice to other slices, and/or reject the slice.
进一步地,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;Further, when the slice is not supported by the network element of the access network, and the network element of the access network is not configured with a slice support capability corresponding to the slice, the mapping policy of the slice further includes: the The network element of the access network temporarily configures the slice support capability corresponding to the slice and/or remaps the slice to another slice;
和/或and / or
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;When the slice is not supported by the network element of the access network, and the network element of the access network has no resources to support the slice, the mapping policy of the slice further includes: the network element of the access network is the network element of the access network An address resolution protocol is set for the slice so that the slice can seize resources and/or remap the slice to other slices, and the requirements of the other slices for resources are lower than the requirements of the slice for resources;
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。When the serving access network element is not configured with the slice support capability, the slice mapping strategy further includes: the access network element temporarily configuring the slice support capability corresponding to the slice.
进一步地,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。Further, the service QoS parameter information or slice QoS information includes service reliability parameter information and/or slice reliability information.
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,现有技术均未提供成熟的方案。As shown in Figure 2, after the user terminal moves out of the service area of the current slice, it can accept the slice and occupy resources of other slices; it can also be remapped to other slices; it can also reject the slice. For example, for a slice service that requires user terminals to be isolated, once the user terminal leaves the coverage area of the slice, it may not be able to access the corresponding service. At this time, the network should reject the slice request of the user terminal. Or, possibly, under a certain slice, the user terminal is isolated from other slices. In order to implement the corresponding slice strategy, it may be necessary to exchange related information on the standard interface. However, when the user terminal needs to be remapped to other slices, what is the formulation and configuration of the mapping strategy of the slice, who makes the decision, who is assigned, what kind of interaction is involved, and what input is the mapping strategy of the slice obtained? What kind of mapping decision is made, what is the input, who will provide it, and what kind of interaction is involved, none of the existing technologies has provided a mature solution.
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,本发明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。In order to solve the unbalanced distribution among network elements of the access network based on network slices, the current network slice of the user terminal may face the problem of remapping. Embodiments of the present invention provide a slice remapping solution. The network elements of the access network The slice support capability is configured according to slice information, slice mapping policies, and parameters required for slice mapping execution to support the slice and/or remap the slice to other slices.
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。Among them, the mapping strategy of the slice is the mapping relationship strategy between slices, or the mapping strategy of the slice specifies the default slice, or the mapping strategy of the slice is the mapping relationship between APP (business) and the slice, and the mapping strategy of the slice can also include the slice rejection Strategy.
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。Wherein, 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.
进一步地,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。Further, the mapping strategy of the service information and the slice is the service quality index of the slice.
进一步地,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。Further, the parameters required for executing the slice mapping include at least one of the following: a service identifier, and optional slice information for remapping.
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。As shown in FIG. 3 , the mapping policy of the slice includes: when the slice is not supported by the network element of the access network, and the network element of the access network is not configured with a slice support capability corresponding to the slice, The access network element temporarily configures the slice support capability corresponding to the slice and/or remaps the slice to other slices; when the slice is not supported by the access network element, and the access When the access network element does not have resources supporting the slice, the access network element sets an address resolution protocol for the slice so that the slice can seize resources and/or remap the slice to other slices, the Other slices have lower resource requirements than the slice.
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。In a specific embodiment, as shown in FIG. 4, the access network element (access network element two) of this embodiment inquires from other access network elements (access network element one) or core network elements Slice information, slice mapping policy, and/or, information required for slice mapping policy execution, such as APP ID, remaps optional slice information. In another specific embodiment, as shown in FIG. 5, the access network element (access network element 1) of this embodiment inquires the user terminal or the core network element about the slice information, the slice mapping strategy, and/or , information required for slice mapping strategy execution, such as APP ID, remaps optional slice information.
进一步地,切片的映射策略还可以预配置在接入网网元中。Further, the slice mapping strategy may also be pre-configured in the network elements of the access network.
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。Through the technical solution of this embodiment, the continuity problem in the moving process of the slice service can be solved. In a specific scenario, assuming that user 1 moves from base station 1 to base station 2, but its original slice is not supported by base station 2, the reasons include: base station 2 is not configured with the corresponding capability, then base station 2 can temporarily configure the corresponding slice support capability , or remap to other slices, or reject the slice; or base station 2 temporarily does not support the slice due to resource relations, then base station 2 can set a high ARP to ensure slice admission; slice; or refuse to slice. For some slices, it may be necessary to better ensure business continuity to ensure user experience. In this case, slices cannot be rejected.
本发明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,The embodiment of the present invention also provides an access network element, as shown in FIG. 6 , including a
所述收发器22用于接收切片的切片映射信息和/或切片重映射信息。The
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和/或切片重映射信息,以便接入网根据切片映射信息和/或切片重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。In this embodiment, during slice remapping, the network element of the access network receives the slice mapping information and/or slice remapping information of the slice, so that the access network remaps the slice to Other slices solve the problem of remapping the current network slices of user terminals based on the unbalanced distribution of network slices among sites.
进一步地,所述处理器21用于将所述切片重映射到其他切片。Further, the
进一步地,所述切片映射信息包括切片映射策略信息;所述切片重映射信息包括切片重映射策略信息。Further, the slice mapping information includes slice mapping policy information; the slice remapping information includes slice remapping policy information.
进一步地,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、切片重映射策略。Further, the
进一步地,所述切片标识信息为网络切片选择辅助信息NSSAI;和/或Further, the slice identification information is network slice selection auxiliary information NSSAI; and/or
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
所述切片指标信息为切片负载信息。The slice index information is slice load information.
进一步地,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;Further, the mapping policy of the slice is pre-configured in the network element of the access network or received from other devices;
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。The other devices include at least one of the following: user terminals, other access network elements, core network elements, and network managers.
进一步地,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。Further, the
进一步地,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 REQUESTACKNOWLEDGEMENT、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。Further, the
进一步地,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。Further, the
进一步地,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。Further, the
进一步地,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。Further, the
进一步地,所述切片的映射策略包括:Further, the mapping strategy of the slice includes:
将所述切片重映射到其他切片,和/或拒绝所述切片。Remap the slice to other slices, and/or reject the slice.
进一步地,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;Further, when the slice is not supported by the network element of the access network, and the network element of the access network is not configured with a slice support capability corresponding to the slice, the mapping policy of the slice further includes: the The network element of the access network temporarily configures the slice support capability corresponding to the slice and/or remaps the slice to another slice;
和/或and / or
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;When the slice is not supported by the network element of the access network, and the network element of the access network has no resources to support the slice, the mapping policy of the slice further includes: the network element of the access network is the network element of the access network An address resolution protocol is set for the slice so that the slice can seize resources and/or remap the slice to other slices, and the requirements of the other slices for resources are lower than the requirements of the slice for resources;
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。When the serving access network element is not configured with the slice support capability, the slice mapping strategy further includes: the access network element temporarily configuring the slice support capability corresponding to the slice.
进一步地,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。Further, the service QoS parameter information or slice QoS information includes service reliability parameter information and/or slice reliability information.
本发明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。The embodiment of the present invention also provides an access network element, including a memory, a processor, and a computer program stored in the memory and operable on the processor; when the processor executes the program, the Slice map remap method as above.
本发明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。An embodiment of the present invention 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.
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。Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. 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), read only memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash memory or other memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media excludes transitory computer-readable media, such as modulated data signals and carrier waves.
以上所述是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.
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