WO2020216099A1

WO2020216099A1 - Communication method and related device

Info

Publication number: WO2020216099A1
Application number: PCT/CN2020/084680
Authority: WO
Inventors: 杨水根; 布拉克次欧意姆; 帕特欧米契拉卡斯埃马努伊尔; 奥鲁佛松亨里克; 张宏卓
Original assignee: 华为技术有限公司
Priority date: 2019-04-26
Filing date: 2020-04-14
Publication date: 2020-10-29
Also published as: CN111866905B; CN111866905A

Abstract

The embodiments of the present application disclose a communication method and a related device. Said method comprises: a first base station sending a first message to a core network device, the first message being used to request for the acquisition of information concerning a network slice supported by at least one cell contained in a second base station, or the first message being used to request for the acquisition of information concerning a network slice supported by at least one tracking area to which at least one cell contained in the second base station belongs, the information concerning the network slice comprising the identifier of the network slice and the priority of the network slice; and the first base station receiving a second message sent by the core network device, the second message comprising the information concerning the network slice supported by the at least one tracking area to which the at least one cell contained in the second base station belongs. The present application facilitates the optimization of the switching performance between a first base station and a second base station.

Description

通信方法及相关设备Communication method and related equipment

技术领域Technical field

本申请涉及通信技术领域，尤其涉及一种通信方法及相关设备。This application relates to the field of communication technology, and in particular to a communication method and related equipment.

背景技术Background technique

第五代(5th Generation，5G)通信***引入了网络切片的概念，网络切片技术能够实现将一个物理网络划分为多个虚拟网络。一个虚拟网络当作一个“网络切片”，每个网络切片之间是相互独立的。一个终端设备中的不同协议数据单元(protocol data unit,PDU)会话可能需要与各个PDU会话相对应的网络切片来提供服务。在实际应用中，基站所支持的网络切片和网络切片的优先级会影响在该基站中能够建立的PDU会话。在无论两个基站是否建立Xn接口的情况下，现有的实现方案中这两个基站都无法确定对方所支持的网络切片的优先级。在两个基站未建立Xn接口的情况下，现有的实现方案中这两个基站无法确定对方所支持的网络切片。The fifth generation (5th Generation, 5G) communication system introduces the concept of network slicing. The network slicing technology can divide a physical network into multiple virtual networks. A virtual network is treated as a "network slice", and each network slice is independent of each other. Different protocol data unit (PDU) sessions in a terminal device may require network slices corresponding to each PDU session to provide services. In practical applications, the network slices supported by the base station and the priority of the network slices will affect the PDU sessions that can be established in the base station. Regardless of whether the two base stations establish an Xn interface, in the existing implementation scheme, the two base stations cannot determine the priority of the network slice supported by each other. In the case that the two base stations have not established the Xn interface, the two base stations cannot determine the network slices supported by each other in the existing implementation solution.

在这种情形下，如何获取到对方基站所支持的网络切片的信息，是一个值得考虑的问题。In this case, how to obtain the network slice information supported by the counterpart base station is a problem worth considering.

发明内容Summary of the invention

本申请实施例提供一种通信方法及相关设备，有助于优化第一基站与第二基站之间的切换性能。The embodiments of the present application provide a communication method and related equipment, which help optimize the handover performance between the first base station and the second base station.

第一方面，本申请实施例提供了一种通信方法，包括：In the first aspect, an embodiment of the present application provides a communication method, including:

第一基站向核心网设备发送第一消息，该第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，该网络切片的信息包括网络切片的标识；可选的，网络切片的信息还包括网络切片的优先级；第一基站接收核心网设备发送的第二消息，该第二消息包括第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The first base station sends a first message to the core network device. The first message is used to request information about the network slices supported by at least one cell contained in the second base station, or the first message is used to request information contained in the second base station. Information about a network slice supported by at least one tracking area to which at least one cell belongs, where the information about the network slice includes the identifier of the network slice; optionally, the information about the network slice also includes the priority of the network slice; the first base station receives the core network A second message sent by the device, where the second message includes information of a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

在第一方面中，第一基站通过与核心网设备交互，获取到第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，有助于优化第一基站与第二基站之间的切换性能。In the first aspect, the first base station obtains the network slice information supported by the at least one tracking area to which at least one cell belongs to the second base station by interacting with the core network equipment, which helps to optimize the first base station and the second base station. Handover performance between base stations.

结合第一方面，在一种可能的实现方式中，第二消息中的第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息是由核心网设备确定的。这样提高了网络切片信息的获取效率。With reference to the first aspect, in a possible implementation manner, the information of the network slice supported by the at least one tracking area to which at least one cell belongs included in the second base station in the second message is determined by the core network device. This improves the efficiency of obtaining network slice information.

结合第一方面，在一种可能的实现方式中，第一基站向核心网设备发送第一消息具体是：第一基站向核心网设备发送第一消息，以使核心网设备向第二基站发送第三消息，该第三消息的作用与第一消息的作用相一致；With reference to the first aspect, in a possible implementation manner, the first base station sending the first message to the core network device is specifically: the first base station sends the first message to the core network device, so that the core network device sends the first message to the second base station The third message, the role of the third message is consistent with the role of the first message;

第一基站接收核心网设备发送的第二消息具体是：第一基站接收核心网设备发送的第二消息，第二消息是核心网设备在接收到第二基站发送的第四消息之后发送的，第四消息包括第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，第二消息和第四消息包括第一基站的标识和第二基站的标识。The first base station receiving the second message sent by the core network device is specifically: the first base station receives the second message sent by the core network device, and the second message is sent by the core network device after receiving the fourth message sent by the second base station, The fourth message includes the information of the network slice supported by the at least one tracking area to which the at least one cell belongs, and the second message and the fourth message include the identity of the first base station and the identity of the second base station.

这样核心网设备通过与第二基站交互，实现向第一基站发送第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。In this way, the core network device interacts with the second base station to send to the first base station information about the network slices supported by at least one tracking area to which at least one cell contained in the second base station belongs.

可选的，第一消息为第一上行无线接入网配置转移消息；第二消息为第一下行无线接入网配置转移消息；第三消息为第二下行无线接入网配置转移消息；第四消息为第二上行无线接入网配置转移消息。Optionally, the first message is a first uplink radio access network configuration transfer message; the second message is a first downlink radio access network configuration transfer message; and the third message is a second downlink radio access network configuration transfer message; The fourth message is a second uplink radio access network configuration transfer message.

结合第一方面，在一种可能的实现方式中，第一基站向核心网设备发送第一消息具体是：第一基站向核心网设备发送第一消息，以使核心网设备向第二基站发送第五消息，第一消息与第五消息分别用于请求将终端设备中N个PDU会话从第一基站切换到第二基站中的目标小区，其中，第一消息与第五消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识，N为正整数；With reference to the first aspect, in a possible implementation manner, the first base station sending the first message to the core network device is specifically: the first base station sends the first message to the core network device, so that the core network device sends the first message to the second base station The fifth message, the first message and the fifth message are respectively used to request the switching of N PDU sessions in the terminal device from the first base station to the target cell in the second base station, where the first message and the fifth message include N PDUs The identity of each PDU session in the session and the identity of the target cell, where N is a positive integer;

第一基站接收核心网设备发送的第二消息具体是：第一基站接收核心网设备发送的第二消息，第二消息是核心网设备在接收到第二基站发送的第六消息之后发送的，第六消息包括第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息；The first base station receiving the second message sent by the core network device is specifically: the first base station receives the second message sent by the core network device, the second message is sent by the core network device after receiving the sixth message sent by the second base station, The sixth message includes information about the network slices supported by the at least one tracking area to which at least one cell belongs and included in the second base station;

其中，第一消息还包括第二基站的标识；或者，第一消息还包括第二基站的标识和至少一个跟踪区域的标识。Wherein, the first message further includes the identity of the second base station; or, the first message further includes the identity of the second base station and the identity of at least one tracking area.

可选的，第一消息为切换要求消息，第五消息为切换请求消息；Optionally, the first message is a handover request message, and the fifth message is a handover request message;

第二消息为切换准备失败消息，第六消息为切换失败消息；或者，第二消息为切换命令消息，第六消息为切换请求确认消息。The second message is a handover preparation failure message, and the sixth message is a handover failure message; or, the second message is a handover command message, and the sixth message is a handover request confirmation message.

这样该可能的实现方案应用于第一基站与第二基站之间没有通信接口，且第一基站需要将终端设备的N个PDU会话切换到第二基站的场景中，这样在切换场景中，第一基站获取到第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。In this way, the possible implementation scheme is applied to a scenario where there is no communication interface between the first base station and the second base station, and the first base station needs to switch N PDU sessions of the terminal device to the second base station. In this way, in the handover scenario, A base station obtains information about network slices supported by at least one tracking area to which at least one cell belongs and included in the second base station.

结合第一方面或第一方面的各个可能实现的方案中，在又一种可能的实现方案中，第二消息还可以包括第二基站包含的小区的至少一个邻小区所属的至少一个跟踪区域所支持的网络切片的信息，有助于优化第一基站与第二基站之间的切换性能。In combination with the first aspect or each possible implementation solution of the first aspect, in yet another possible implementation solution, the second message may also include at least one tracking area location of at least one neighboring cell of the cell included in the second base station. The information of the supported network slices helps to optimize the handover performance between the first base station and the second base station.

结合第一方面或第一方面的各个可能实现的方案中，在又一种可能的实现方案中，第一基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the first aspect or various possible implementation solutions of the first aspect, in another possible implementation solution, the first base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

结合第一方面或第一方面的各个可能实现的方案中，在又一种可能的实现方案中，第二基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the first aspect or each possible implementation solution of the first aspect, in yet another possible implementation solution, the second base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

第二方面，本申请实施例提供了一种通信方法，包括：In the second aspect, an embodiment of the present application provides a communication method, including:

核心网设备接收来自第一基站的第一消息，该第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，该网络切片的信息包括网络切片的标识；可选的，网络切片的信息还包括网络切片的优先级；核心网设备向第一基站发送第二消息，该第二消息包括第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The core network device receives a first message from the first base station, where the first message is used to request to obtain information about the network slice supported by at least one cell contained in the second base station, or the first message is used to request to obtain the information contained in the second base station. Information about the network slice supported by at least one tracking area to which at least one cell belongs, where the information about the network slice includes the identifier of the network slice; optionally, the information about the network slice also includes the priority of the network slice; the core network device A base station sends a second message, and the second message includes information of a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

在第二方面中，核心网设备可以向第一基站发送第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，有助于优化第一基站与第二基站之间的切换性能。In the second aspect, the core network device may send to the first base station information about the network slices supported by the at least one tracking area of the at least one cell contained in the second base station, which helps to optimize the relationship between the first base station and the second base station. Switching performance.

结合第二方面，在一种可能的实现方式中，第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息是由核心网设备确定的。这样提高了网络切片信息的获取效率。其中，第一消息包括第二基站的标识；或者，第一消息包括第二基站的标识和至少一个跟踪区域的标识；或者，第一消息包括第二基站的标识和至少一个小区的标识。With reference to the second aspect, in a possible implementation manner, the information of the network slices supported by the at least one tracking area to which at least one cell belongs included in the second base station is determined by the core network device. This improves the efficiency of obtaining network slice information. Wherein, the first message includes the identity of the second base station; or, the first message includes the identity of the second base station and the identity of at least one tracking area; or, the first message includes the identity of the second base station and the identity of at least one cell.

结合第二方面，在一种可能的实现方式中，核心网设备向第一基站发送第二消息之前，还包括：核心网设备向第二基站发送第三消息，第三消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，第三消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，第一消息和第三消息包括第一基站的标识和第二基站的标识；核心网设备接收第二基站发送的第四消息，第四消息包括第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，第二消息和第四消息包括第一基站的标识和第二基站的标识。With reference to the second aspect, in a possible implementation manner, before the core network device sends the second message to the first base station, the method further includes: the core network device sends a third message to the second base station, and the third message is used to request to obtain the second message. The second base station contains information about the network slices supported by at least one cell, or the third message is used to request information about the network slices supported by at least one tracking area to which at least one cell belongs to the second base station, the first message and The third message includes the identity of the first base station and the identity of the second base station; the core network device receives the fourth message sent by the second base station, and the fourth message includes the at least one tracking area to which at least one cell contained in the second base station belongs. For the network slice information, the second message and the fourth message include the identity of the first base station and the identity of the second base station.

这样核心网设备通过与第二基站交互，可以实现向第一基站发送第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。In this way, by interacting with the second base station, the core network device can send to the first base station information about network slices supported by at least one tracking area to which at least one cell contained in the second base station belongs.

其中，该第一消息包括第一基站的标识和第二基站的标识。这样核心网设备根据第一基站的标识确定第一消息是第一基站发送的，且核心网设备可以根据第二基站的标识向第二基站发送第三消息。这一情况下，该第一消息用于获取第二基站包含的全部小区所属的跟踪区域所支持的网络切片的信息。Wherein, the first message includes the identity of the first base station and the identity of the second base station. In this way, the core network device determines that the first message was sent by the first base station according to the identity of the first base station, and the core network device can send the third message to the second base station according to the identity of the second base station. In this case, the first message is used to obtain information about the network slices supported by the tracking area to which all cells included in the second base station belong.

可选的，该第一消息还包括第二基站中至少一个跟踪区域的标识。这一情况下，该第一消息用于获取一个或者多个跟踪区域所支持的网络切片的信息，其中，一个或者多个跟踪区域是第二基站的跟踪区域集合的子集，第二基站的跟踪区域集合包括第二基站包含的全部小区分别所属的跟踪区域。这样可以实现向第一基站反馈第一基站所想要获取的跟踪区域所支持的网络切片的信息，更具针对性。Optionally, the first message further includes an identifier of at least one tracking area in the second base station. In this case, the first message is used to obtain information about network slices supported by one or more tracking areas, where the one or more tracking areas are a subset of the tracking area set of the second base station, The tracking area set includes tracking areas to which all cells included in the second base station belong. In this way, it is possible to feed back the network slice information supported by the tracking area that the first base station wants to obtain to the first base station, which is more targeted.

可选的，第一消息为第一上行无线接入网配置转移消息；第四消息为第二上行无线接入网配置转移消息；第二消息为第一下行无线接入网配置转移消息；第三消息为第二下行无线接入网配置转移消息。Optionally, the first message is a first uplink radio access network configuration transfer message; the fourth message is a second uplink radio access network configuration transfer message; and the second message is a first downlink radio access network configuration transfer message; The third message is a second downlink radio access network configuration transfer message.

结合第二方面，在一种可能的实现方式中，核心网设备向第一基站发送第二消息之前，还包括：核心网设备向第二基站发送第五消息，第一消息与第五消息分别用于请求将终端设备中N个PDU会话从第一基站切换到第二基站中的目标小区，其中，第一消息与第五消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识；核心网设备接收第二基站发送的第六消息，第六消息包括第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，N为正整数；With reference to the second aspect, in a possible implementation manner, before the core network device sends the second message to the first base station, the method further includes: the core network device sends a fifth message to the second base station, where the first message and the fifth message are respectively It is used to request to switch N PDU sessions in the terminal equipment from the first base station to the target cell in the second base station, where the first message and the fifth message include the identifier of each PDU session in the N PDU sessions and the target cell's Identification; the core network device receives a sixth message sent by the second base station, where the sixth message includes the information of the network slice supported by the at least one tracking area to which at least one cell belongs and included in the second base station, and N is a positive integer;

这样该可能的实现方案可以应用于第一基站与第二基站之间没有通信接口，且第一基站需要将终端设备的N个PDU会话切换到第二基站的场景中，这样在切换场景中，第一基站可以通过核心网设备获取到第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。In this way, this possible implementation solution can be applied to a scenario where there is no communication interface between the first base station and the second base station, and the first base station needs to switch N PDU sessions of the terminal device to the second base station. In this way, in the handover scenario The first base station may obtain, through the core network device, the information of the network slice supported by the at least one tracking area to which at least one cell included in the second base station belongs.

结合第二方面或第二方面的各个可能实现的方案中，在一种可能的实现方案中，第二消息还可以包括第二基站包含的小区的至少一个邻小区所属的至少一个跟踪区域所支持的网络切片的信息。有助于优化第一基站与第二基站之间的切换性能。In combination with the second aspect or various possible implementation solutions of the second aspect, in a possible implementation solution, the second message may also include at least one tracking area supported by at least one neighboring cell of the cell included in the second base station. Information about the network slice. It helps to optimize the handover performance between the first base station and the second base station.

结合第二方面或第二方面的各个可能实现的方案中，在又一种可能的实现方案中，第一基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the second aspect or various possible implementation solutions of the second aspect, in another possible implementation solution, the first base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

结合第二方面或第二方面的各个可能实现的方案中，在又一种可能的实现方案中，第二基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the second aspect or various possible implementation solutions of the second aspect, in another possible implementation solution, the second base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

第三方面，本申请实施例提供了一种通信方法，包括：In the third aspect, an embodiment of the present application provides a communication method, including:

第二基站接收核心网设备发送的第一消息，该第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，该网络切片的信息包括网络切片的标识；可选的，网络切片的信息还包括网络切片的优先级；第二基站向核心网设备发送第二消息，该第二消息包括第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The second base station receives the first message sent by the core network device, where the first message is used to request information about the network slices supported by at least one cell contained in the second base station, or the first message is used to request to obtain Information about a network slice supported by at least one tracking area to which at least one cell belongs, where the information about the network slice includes the identifier of the network slice; optionally, the information about the network slice also includes the priority of the network slice; the second base station sends the core The network device sends a second message, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

在第三方面中，第二基站向核心网设备反馈其包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，以使核心网设备将该信息发送给第一基站，有助于优化第一基站与第二基站之间的切换性能。In the third aspect, the second base station feeds back to the core network equipment information about the network slices supported by at least one tracking area to which at least one cell belongs, so that the core network equipment sends the information to the first base station, which is helpful To optimize the handover performance between the first base station and the second base station.

结合第三方面，在一种可能的实现方式中，第一消息和第二消息包括第一基站的标识和第二基站的标识。With reference to the third aspect, in a possible implementation manner, the first message and the second message include the identity of the first base station and the identity of the second base station.

可选的，第一消息为下行无线接入网配置转移消息；第二消息为上行无线接入网配置转移消息。Optionally, the first message is a downlink radio access network configuration transfer message; the second message is an uplink radio access network configuration transfer message.

结合第三方面，在一种可能的实现方式中，第一消息用于请求将终端设备中N个PDU会话从第一基站切换到第二基站中的目标小区，第一消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识；With reference to the third aspect, in a possible implementation manner, the first message is used to request to switch N PDU sessions in the terminal device from the first base station to the target cell in the second base station, and the first message includes N PDU sessions The identity of each PDU session in the PDU and the identity of the target cell;

可选的，第一消息为切换请求消息；第二消息为切换失败消息或者切换请求确认消息。这样该可能的实现方案可以应用于第一基站与第二基站之间没有通信接口，且第一基站需要将终端设备的N个PDU会话切换到第二基站的场景中，这样在切换场景中，第一基站通过核心网设备获取到第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。Optionally, the first message is a handover request message; the second message is a handover failure message or a handover request confirmation message. In this way, this possible implementation solution can be applied to a scenario where there is no communication interface between the first base station and the second base station, and the first base station needs to switch N PDU sessions of the terminal device to the second base station. In this way, in the handover scenario The first base station obtains, through the core network device, the information of the network slice supported by the at least one tracking area to which at least one cell included in the second base station belongs.

结合第三方面，在一种可能的实现方式中，第二消息还可以包括第二基站包含的小区的至少一个邻小区所属的至少一个跟踪区域所支持的网络切片的信息。有助于优化第一基站与第二基站之间的切换性能。With reference to the third aspect, in a possible implementation manner, the second message may further include information about a network slice supported by at least one tracking area to which at least one neighboring cell of the cell included in the second base station belongs. It helps to optimize the handover performance between the first base station and the second base station.

结合第三方面或第三方面的各个可能实现的方案中，在又一种可能的实现方案中，第一基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the third aspect or various possible implementation solutions of the third aspect, in another possible implementation solution, the first base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

结合第三方面或第三方面的各个可能实现的方案中，在又一种可能的实现方案中，第二基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the third aspect or various possible implementation solutions of the third aspect, in another possible implementation solution, the second base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

第四方面，本申请实施例提供了一种通信方法，包括：In a fourth aspect, an embodiment of the present application provides a communication method, including:

第一基站生成第一消息，并发送第一消息。其中，第一消息包括第一基站支持的至少一个第一网络切片的信息，第一网络切片的信息包括第一网络切片的标识；可选的，第一网络切片的信息还包括第一网络切片的优先级；或者，第一消息包括第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和跟踪区域支持的至少一个第二网络切片的信息，第二网络切片的信息包括第二网络切片的标识；可选的，第二网络切片的信息还包括第二网络切片的优先级。The first base station generates the first message and sends the first message. The first message includes information about at least one first network slice supported by the first base station, and the information about the first network slice includes an identifier of the first network slice; optionally, the information about the first network slice further includes the first network slice. Or, the first message includes the identification of at least one tracking area to which at least one cell belongs and the information of at least one second network slice supported by the tracking area included in the first base station, and the information about the second network slice includes the second network The identifier of the slice; optionally, the information of the second network slice further includes the priority of the second network slice.

在第四方面中，在第一基站可以向其他基站发送第一基站支持的网络切片，可选的，还发送所支持的网络切片中各网络切片的优先级，有助于优化第一基站与第二基站之间的切换性能。In the fourth aspect, the first base station can send the network slices supported by the first base station to other base stations. Optionally, the priority of each network slice in the supported network slices is also sent, which helps to optimize the first base station and Handover performance between second base stations.

结合第四方面，在一种可能的实现方式中，第一基站发送第一消息具体是：第一基站直接向第二基站发送第一消息。With reference to the fourth aspect, in a possible implementation manner, the first base station sends the first message specifically: the first base station directly sends the first message to the second base station.

可选的，第一消息为Xn建立请求消息或者为Xn建立响应消息。这样第四方面的方案可以应用于第一基站与第二基站建立通信接口的场景中；或者，Optionally, the first message is an Xn establishment request message or an Xn establishment response message. In this way, the solution of the fourth aspect can be applied to the scenario where the first base station and the second base station establish a communication interface; or,

第一消息为下一代无线接入网节点配置更新消息或者为下一代无线接入网节点配置更新确认消息。第四方面的方案可以应用于第一基站和第二基站已建立通信接口的场景中。The first message is a next-generation radio access network node configuration update message or a next-generation radio access network node configuration update confirmation message. The solution of the fourth aspect can be applied to a scenario where the first base station and the second base station have established communication interfaces.

结合第四方面，在一种可能的实现方式中，第一基站与第二基站之间未建立通信接口的场景中，通过核心网设备来实现信息的交互。With reference to the fourth aspect, in a possible implementation manner, in a scenario where a communication interface is not established between the first base station and the second base station, information interaction is implemented through core network equipment.

第一基站发送第一消息具体是：第一基站向核心网设备发送第一消息，以使核心网设备向第二基站发送第二消息，第一消息与第二消息包括第一基站的标识和第二基站的标识，第一消息与第二消息包括第一基站支持的至少一个第一网络切片的信息；或者，第一消息与第二消息包括第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和跟踪区域支持的至少一个第二网络切片的信息。The first message sent by the first base station is specifically: the first base station sends the first message to the core network device, so that the core network device sends the second message to the second base station, the first message and the second message include the identity of the first base station and The identity of the second base station, the first message and the second message include information about at least one first network slice supported by the first base station; or, the first message and the second message include at least one cell belonging to at least one cell included in the first base station The identification of the tracking area and the information of at least one second network slice supported by the tracking area.

可选的，第一消息为上行无线接入网配置转移消息；第二消息为下行无线接入网配置转移消息。Optionally, the first message is an uplink radio access network configuration transfer message; the second message is a downlink radio access network configuration transfer message.

结合第四方面或第四方面的各个可能实现的方案中，在又一种可能的实现方案中，第一基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the fourth aspect or each possible implementation solution of the fourth aspect, in another possible implementation solution, the first base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

结合第四方面或第四方面的各个可能实现的方案中，在又一种可能的实现方案中，第二基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the fourth aspect or each possible implementation solution of the fourth aspect, in another possible implementation solution, the second base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

第五方面，本申请实施例提供了一种通信方法，包括：In the fifth aspect, an embodiment of the present application provides a communication method, including:

第二基站接收第一消息，第一消息包括第一基站支持的至少一个第一网络切片的信息，第一网络切片的信息包括第一网络切片的标识和第一网络切片的优先级；或者，第一消息包括第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和跟踪区域支持的至少一个第二网络切片的信息，第二网络切片的信息包括第二网络切片的标识和第二网络切片的优先级。The second base station receives the first message, where the first message includes information about at least one first network slice supported by the first base station, and the information about the first network slice includes the identifier of the first network slice and the priority of the first network slice; or, The first message includes the identification of at least one tracking area to which at least one cell belongs and the information of at least one second network slice supported by the tracking area included in the first base station. The information of the second network slice includes the identification of the second network slice and the second network slice. The priority of the network slice.

在第五方面中，第二基站可以接收到第一基站支持的网络切片，可选的，还可以接收到第一基站所支持的网络切片中各网络切片的优先级，有助于优化第一基站与第二基站之间的切换性能。In the fifth aspect, the second base station can receive the network slice supported by the first base station, and optionally, can also receive the priority of each network slice in the network slice supported by the first base station, which helps to optimize the first base station. Handover performance between the base station and the second base station.

结合第五方面，在一种可能的实现方式中，第二基站接收第一消息具体是：第二基站接收第一基站发送的第一消息。With reference to the fifth aspect, in a possible implementation manner, the second base station receiving the first message specifically includes: the second base station receiving the first message sent by the first base station.

第一消息为下一代无线接入网节点配置更新消息或者为下一代无线接入网节点配置更新确认消息。第五方面的方案可以应用于第一基站和第二基站已建立通信接口的场景中。The first message is a next-generation radio access network node configuration update message or a next-generation radio access network node configuration update confirmation message. The solution of the fifth aspect can be applied to a scenario where the first base station and the second base station have established communication interfaces.

结合第五方面，在一种可能的实现方式中，第一基站与第二基站之间未建立通信接口的场景中，可以通过核心网设备来实现信息的交互。With reference to the fifth aspect, in a possible implementation manner, in a scenario where a communication interface is not established between the first base station and the second base station, information interaction can be implemented through core network equipment.

第二基站接收第一消息具体是：第二基站接收核心网设备发送的第一消息，第一消息是核心网设备在接收到第一基站发送的第二消息之后发送的，第一消息与第二消息包括第一基站的标识和第二基站的标识，第一消息与第二消息包括第一基站支持的至少一个第一网络切片的信息；或者，第一消息与第二消息包括第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和跟踪区域支持的至少一个第二网络切片的信息。The second base station receiving the first message is specifically: the second base station receives the first message sent by the core network device, the first message is sent by the core network device after receiving the second message sent by the first base station, and the first message and the first message The second message includes the identity of the first base station and the identity of the second base station, the first message and the second message include information about at least one first network slice supported by the first base station; or, the first message and the second message include the first base station The identity of at least one tracking area to which at least one cell belongs and the information of at least one second network slice supported by the tracking area are included.

结合第五方面或第五方面的各个可能实现的方案中，在又一种可能的实现方案中，第一基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the fifth aspect or each possible implementation solution of the fifth aspect, in another possible implementation solution, the first base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

结合第五方面或第五方面的各个可能实现的方案中，在又一种可能的实现方案中，第二基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the fifth aspect or each possible implementation solution of the fifth aspect, in another possible implementation solution, the second base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

第六方面，本申请实施例提供了一种通信方法，包括：In a sixth aspect, an embodiment of the present application provides a communication method, including:

源基站发送第一消息，第一消息用于请求将终端设备的N个PDU会话从源基站切换到目标基站中的目标小区，第一消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识；源基站接收用于指示切换响应的第二消息，第二消息包括指示信息，指示信息用于指示在目标小区的资源不足的情况下，终端设备中M个PDU会话切换失败的原因是由于至少一个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的网络切片没有可用资源，N为正整数，M为小于或等于N的正整数。The source base station sends a first message, the first message is used to request the N PDU sessions of the terminal device to be switched from the source base station to the target cell in the target base station, the first message includes the identity and target of each PDU session in the N PDU sessions The identity of the cell; the source base station receives a second message for indicating a handover response, the second message includes indication information, and the indication information is used to indicate the reason for the failure of the M PDU session handover in the terminal device in the case of insufficient resources in the target cell The network slice has no available resources because the network slice corresponding to at least one PDU session has a low priority in the tracking area to which the target cell belongs. N is a positive integer, and M is a positive integer less than or equal to N.

在第六方面中，在源基站请求将终端设备的N个PDU会话切换至目标基站中的目标小区的情况下，目标基站在用于指示切换响应的消息中包括指示信息，以指示在目标小区的资源不足的情况下，切换失败的M个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致该网络切片没有可用资源，这样对于源基站需要下一次请求将与该网络切片对应的PDU会话切换至目标小区的情况，源基站可以参考先前目标基站发送的指示信息来决定是否切换，提高了切换成功的概率。In the sixth aspect, in the case where the source base station requests to switch the N PDU sessions of the terminal equipment to the target cell in the target base station, the target base station includes indication information in the message for indicating the handover response to indicate that it is in the target cell In the case of insufficient resources, the network slice corresponding to the failed M PDU sessions has a lower priority in the tracking area to which the target cell belongs, resulting in that the network slice has no available resources, so the next request for the source base station will be When the PDU session corresponding to the network slice is switched to the target cell, the source base station can refer to the instruction information sent by the target base station to determine whether to switch, which improves the probability of successful switching.

结合第六方面，在一种可能的实现方式中，在源基站与目标基站之间已建立通信接口的场景中，可以直接交互。With reference to the sixth aspect, in a possible implementation manner, in a scenario where a communication interface has been established between the source base station and the target base station, direct interaction may be possible.

源基站发送第一消息具体是源基站向目标基站发送第一消息，第一消息为切换请求消息；The source base station sending the first message specifically means that the source base station sends the first message to the target base station, and the first message is a handover request message;

源基站接收用于指示切换响应的第二消息具体是：源基站接收目标基站发送的用于指示切换响应的第二消息，第二消息为切换准备失败消息或者切换请求确认消息。The source base station receives the second message for indicating the handover response specifically: the source base station receives the second message for indicating the handover response sent by the target base station, and the second message is a handover preparation failure message or a handover request confirmation message.

可选的，第一消息包括每个PDU会话对应的网络切片的标识。Optionally, the first message includes the identifier of the network slice corresponding to each PDU session.

结合第六方面，在一种可能的实现方式中，在源基站与目标基站之间未建立通信接口的场景中，可以通过核心网设备来实现信息的交互。With reference to the sixth aspect, in a possible implementation manner, in a scenario where a communication interface is not established between the source base station and the target base station, information interaction can be implemented through core network equipment.

源基站发送第一消息具体是：源基站向核心网设备发送第一消息，以使核心网设备向目标基站发送第三消息，第三消息用于请求将终端设备中N个PDU会话从源基站切换到目标基站中的目标小区，第三消息包括N个PDU会话中每个PDU会话的标识、每个PDU会话对应的网络切片的标识和目标小区的标识，第一消息为切换要求消息，第三消息为切换请求消息；The source base station sends the first message specifically: the source base station sends the first message to the core network device, so that the core network device sends a third message to the target base station, and the third message is used to request N PDU sessions in the terminal device from the source base station. Switch to the target cell in the target base station. The third message includes the identifier of each PDU session in the N PDU sessions, the identifier of the network slice corresponding to each PDU session, and the identifier of the target cell. The first message is a handover request message, and the first message The third message is a handover request message;

源基站接收用于指示切换响应的第二消息具体是：源基站接收核心网设备发送的用于指示切换响应的第二消息，第二消息为切换准备失败消息或切换命令消息，切换准备失败消息是核心网设备在接收到目标基站发送的切换失败消息之后发送的，切换命令消息是核心网设备在接收到目标基站发送的切换请求确认消息之后发送的，切换失败消息或者切换请求确认消息包括指示信息。The source base station receives the second message for indicating the handover response specifically: the source base station receives the second message for indicating the handover response sent by the core network device, the second message is a handover preparation failure message or a handover command message, and a handover preparation failure message It is sent by the core network device after receiving the handover failure message sent by the target base station. The handover command message is sent by the core network device after receiving the handover request confirmation message sent by the target base station. The handover failure message or the handover request confirmation message includes instructions information.

结合第六方面，在一种可能的实现方式中，在源基站接收到第二消息之后，源基站可以向控制设备发送第七消息，第七消息包括目标小区的标识和指示信息。这样通过源基站来通知控制设备：在目标小区的资源不足的情况下，目标小区由于M个PDU会话对应的网络切片的优先级较低影响了该PDU会话的接入。可选的，源基站接收控制设备发送的第八消息，该第八消息包括为目标小区所属的TA重新配置的网络切片的信息，网络切片的信息包括目标小区所属的TA支持的网络切片的标识和所支持的网络切片中各网络切片的优先级中的至少一个。这样控制设备将为目标小区所属TA重新配置的网络切片的信息也可以通知给源基站，以便于源基站参考。With reference to the sixth aspect, in a possible implementation manner, after the source base station receives the second message, the source base station may send a seventh message to the control device, where the seventh message includes the identifier and indication information of the target cell. In this way, the source base station is used to notify the control device that when the resources of the target cell are insufficient, the access of the PDU session is affected by the lower priority of the network slice corresponding to the M PDU sessions in the target cell. Optionally, the source base station receives an eighth message sent by the control device, where the eighth message includes information about a network slice reconfigured for the TA to which the target cell belongs, and the network slice information includes an identifier of the network slice supported by the TA to which the target cell belongs And at least one of the priorities of each network slice in the supported network slices. In this way, the control device can also notify the source base station of the information about the network slice reconfigured for the TA to which the target cell belongs, so that the source base station can refer to it.

结合第六方面或第六方面的各个可能实现的方案中，在又一种可能的实现方案中，第一基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the sixth aspect or the possible implementation solutions of the sixth aspect, in another possible implementation solution, the first base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

结合第六方面或第六方面的各个可能实现的方案中，在又一种可能的实现方案中，第二基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the sixth aspect or each possible implementation solution of the sixth aspect, in another possible implementation solution, the second base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

第七方面，本申请实施例提供了一种通信方法，包括：In a seventh aspect, an embodiment of the present application provides a communication method, including:

目标基站接收第一消息，第一消息用于请求将终端设备中N个PDU会话从源基站切换到目标基站中的目标小区，第一消息包括N个PDU会话中每个PDU会话的标识、每个PDU会话对应的网络切片的标识和目标小区的标识；目标基站发送用于指示切换响应的第二消息，第二消息包括指示信息，指示信息用于指示在目标小区的资源不足的情况下，终端设备中M个PDU会话切换失败的原因是由于至少一个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的网络切片没有可用资源，N为正整数，M为小于或等于N的正整数。The target base station receives the first message. The first message is used to request the switching of N PDU sessions in the terminal device from the source base station to the target cell in the target base station. The first message includes the identifier of each PDU session in the N PDU sessions, each The identity of the network slice corresponding to each PDU session and the identity of the target cell; the target base station sends a second message for indicating a handover response, the second message includes indication information, and the indication information is used to indicate that in the case of insufficient resources of the target cell, The reason for the failure of switching M PDU sessions in the terminal device is that the network slice corresponding to at least one PDU session has a low priority in the tracking area to which the target cell belongs. The network slice has no available resources, N is a positive integer, and M is A positive integer less than or equal to N.

在第七方面中，在接收到源基站请求将终端设备的N个PDU会话切换至目标基站中的目标小区的情况下，目标基站可以在用于指示切换响应的消息中包括指示信息，以指示在目标小区的资源不足的情况下，切换失败的M个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致该网络切片没有可用资源，这样对于源基站需要下一次请求将与该网络切片对应的PDU会话切换至目标小区的情况，源基站可以参考先前目标基站发送的指示信息来决定是否切换，提高了切换成功的概率。In the seventh aspect, in the case of receiving a request from the source base station to switch the N PDU sessions of the terminal device to the target cell in the target base station, the target base station may include indication information in the message for indicating the handover response to indicate In the case of insufficient resources in the target cell, the network slice corresponding to the failed M PDU sessions has a lower priority in the tracking area to which the target cell belongs, resulting in that the network slice has no available resources, so that the source base station needs the next time In the case of requesting to switch the PDU session corresponding to the network slice to the target cell, the source base station can refer to the previous instruction information sent by the target base station to determine whether to switch, which improves the probability of successful switching.

结合第七方面，在一种可能的实现方式中，在源基站与目标基站之间已建立通信接口的场景中，可以直接交互。With reference to the seventh aspect, in a possible implementation manner, in a scenario where a communication interface has been established between the source base station and the target base station, direct interaction may be possible.

目标基站接收第一消息具体是：目标基站接收源基站发送的第一消息，第一消息为切换请求消息；The target base station receiving the first message is specifically: the target base station receives the first message sent by the source base station, and the first message is a handover request message;

目标基站发送用于指示切换响应的第二消息具体是：目标基站向源基站发送用于指示切换响应的第二消息，第二消息为切换准备失败消息或者切换请求确认消息。The second message sent by the target base station to indicate the handover response is specifically: the target base station sends a second message for indicating the handover response to the source base station, and the second message is a handover preparation failure message or a handover request confirmation message.

结合第七方面，在一种可能的实现方式中，在源基站与目标基站之间未建立通信接口的场景中，可以通过核心网设备来实现信息的交互。With reference to the seventh aspect, in a possible implementation manner, in a scenario where a communication interface is not established between the source base station and the target base station, information interaction can be implemented through core network equipment.

第一消息为切换请求消息，第二消息为切换失败消息或者切换请求确认消息；The first message is a handover request message, and the second message is a handover failure message or a handover request confirmation message;

目标基站接收第一消息具体是：目标基站接收核心网设备发送的第一消息，第一消息是核心网设备在接收到源基站发送的第三消息之后发送的，第三消息用于请求将终端设备中PDU会话从源基站切换到目标基站中的目标小区，第三消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识，第三消息为切换要求消息；The target base station receives the first message specifically: the target base station receives the first message sent by the core network device, the first message is sent by the core network device after receiving the third message sent by the source base station, and the third message is used to request the terminal The PDU session in the device is handed over from the source base station to the target cell in the target base station, the third message includes the identity of each PDU session in the N PDU sessions and the identity of the target cell, and the third message is a handover request message;

目标基站发送用于指示切换响应的第二消息具体是：目标基站向核心网设备发送切换失败消息，以使核心网设备向源基站发送切换准备失败消息，切换准备失败消息包括指示信息；或者，目标基站向核心网设备发送切换请求确认消息，以使核心网设备向源基站发送切换命令消息，切换命令消息包括指示信息。The second message sent by the target base station to indicate the handover response is specifically: the target base station sends a handover failure message to the core network device, so that the core network device sends a handover preparation failure message to the source base station, and the handover preparation failure message includes indication information; or, The target base station sends a handover request confirmation message to the core network device, so that the core network device sends a handover command message to the source base station, where the handover command message includes indication information.

结合第七方面，在一种可能的实现方式中，该方法还包括：With reference to the seventh aspect, in a possible implementation manner, the method further includes:

目标基站向控制设备发送第四消息，第四消息包括目标小区的标识和指示信息；目标基站接收控制设备发送的第五消息，第五消息包括为目标小区所属的跟踪区域重新配置的网络切片的信息，网络切片的信息包括目标小区所属的跟踪区域支持的网络切片的标识和网络切片的优先级中的至少一个。这样在目标基站在向控制设备反馈指示信息之后，表示在目标小区的资源不足的情况下，目标小区由于PDU会话对应的网络切片的优先级较低影响了该PDU会话的接入，而控制设备可以对目标小区所属的跟踪区域支持的网络切片的标识和网络切片优先级中的至少一个进行调整，以满足PDU会话切换需求。The target base station sends a fourth message to the control device, the fourth message includes the identification and indication information of the target cell; the target base station receives the fifth message sent by the control device, and the fifth message includes the network slice reconfigured for the tracking area to which the target cell belongs Information, the information of the network slice includes at least one of the identification of the network slice supported by the tracking area to which the target cell belongs and the priority of the network slice. In this way, after the target base station feeds back the indication information to the control device, it indicates that in the case of insufficient resources of the target cell, the target cell’s access to the PDU session is affected due to the low priority of the network slice corresponding to the PDU session, and the control device At least one of the identification of the network slice and the priority of the network slice supported by the tracking area to which the target cell belongs may be adjusted to meet the PDU session switching requirement.

结合第七方面或第七方面的各个可能实现的方案中，在又一种可能的实现方案中，第一基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the seventh aspect or the possible implementation solutions of the seventh aspect, in another possible implementation solution, the first base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

结合第七方面或第七方面的各个可能实现的方案中，在又一种可能的实现方案中，第二基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the seventh aspect or the possible implementation solutions of the seventh aspect, in another possible implementation solution, the second base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

第八方面，本申请实施例提供了一种通信方法，包括：In an eighth aspect, an embodiment of the present application provides a communication method, including:

控制设备接收第一基站发送的第一消息，第一消息包括第二基站包含的目标小区的标识和指示信息，指示信息用于指示在目标小区的资源不足的情况下，终端设备中至少一个PDU会话切换失败的原因是由于至少一个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的网络切片没有可用资源；控制设备向第二基站发送第二消息，第二消息包括为目标小区所属的跟踪区域重新配置的网络切片的信息，网络切片的信息包括目标小区所属的跟踪区域支持的网络切片的标识和所支持的网络切片中各网络切片的优先级中的至少一个。The control device receives the first message sent by the first base station. The first message includes the identification and indication information of the target cell contained in the second base station. The indication information is used to indicate that when the resources of the target cell are insufficient, at least one PDU in the terminal device The reason for the session switching failure is that the network slice corresponding to at least one PDU session has a low priority in the tracking area to which the target cell belongs. The network slice has no available resources; the control device sends a second message to the second base station, The message includes information about the network slice reconfigured for the tracking area to which the target cell belongs. The information about the network slice includes at least one of the identification of the network slice supported by the tracking area to which the target cell belongs and the priority of each network slice in the supported network slice. One.

其中，第一基站和第二基站可以为同一个基站，也可以为不同基站。The first base station and the second base station may be the same base station or different base stations.

可选的，在第一基站和第二基站不是同一个基站的情况下，控制设备还可以向第一基站发送第三消息，该第三消息包括为目标小区所属的跟踪区域重新配置的网络切片的信息。Optionally, in the case that the first base station and the second base station are not the same base station, the control device may also send a third message to the first base station, and the third message includes a network slice reconfigured for the tracking area to which the target cell belongs Information.

在第八方面中，控制设备在接收到指示信息之后，可以确定在目标小区的资源不足的情况下，目标小区所属的跟踪区域由于切换失败的PDU会话对应的网络切片的优先级较低影响了该PDU会话的接入，这样控制设备可以对目标小区所属的跟踪区域支持的网络切片的标识和网络切片优先级中的至少一个进行调整，以满足切换需求。In the eighth aspect, after receiving the indication information, the control device can determine that in the case of insufficient resources of the target cell, the tracking area to which the target cell belongs is affected by the low priority of the network slice corresponding to the PDU session for which the handover fails. The access of the PDU session, in this way, the control device can adjust at least one of the identification of the network slice and the priority of the network slice supported by the tracking area to which the target cell belongs to meet the handover requirement.

结合第八方面或第八方面的各个可能实现的方案中，在又一种可能的实现方案中，第一基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the eighth aspect or each possible implementation solution of the eighth aspect, in another possible implementation solution, the first base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

结合第八方面或第八方面的各个可能实现的方案中，在又一种可能的实现方案中，第二基站是集中式单元CU或者是集中式单元控制面CU-CP网元。In combination with the eighth aspect or each possible implementation solution of the eighth aspect, in another possible implementation solution, the second base station is a centralized unit CU or a centralized unit control plane CU-CP network element.

第九方面，本申请实施例提供了一种基站，该基站为第一基站，包括：In a ninth aspect, an embodiment of the present application provides a base station, which is a first base station and includes:

发送模块，用于向核心网设备发送第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识和所述网络切片的优先级；The sending module is configured to send a first message to the core network device, where the first message is used to request to obtain the information of the network slice supported by at least one cell included in the second base station, or the first message is used to request to obtain The second base station includes information about network slices supported by at least one tracking area to which at least one cell belongs, where the information about the network slice includes the identifier of the network slice and the priority of the network slice;

接收模块，用于接收所述核心网设备发送的第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The receiving module is configured to receive a second message sent by the core network device, where the second message includes information of a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

可选的，该第一基站还可以实现上述第一方面及其第一方面中任意一种可能的实现方式所执行的方法。Optionally, the first base station may also implement the foregoing first aspect and the method executed in any one of the possible implementation manners of the first aspect.

第十方面，本申请实施例提供了一种核心网设备，包括：In a tenth aspect, an embodiment of the present application provides a core network device, including:

接收模块，用于接收来自第一基站的第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识；可选的，所述网络切片的信息还包括所述网络切片的优先级；The receiving module is configured to receive a first message from a first base station, where the first message is used to request information about network slices supported by at least one cell included in the second base station, or the first message is used to request Acquire information about the network slices supported by the at least one tracking area to which at least one cell belongs, included in the second base station, where the network slice information includes the identifier of the network slice; optionally, the network slice information further includes all The priority of the network slicing;

发送模块，用于向所述第一基站发送第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The sending module is configured to send a second message to the first base station, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

可选的，该核心网设备还可以实现上述第二方面及其第二方面中任意一种可能的实现方式所执行的方法。Optionally, the core network device may also implement the method executed in the foregoing second aspect and any one of the possible implementation manners of the second aspect.

第十一方面，本申请实施例提供了一种基站，其特征在于，该基站为第二基站，包括：In an eleventh aspect, an embodiment of the present application provides a base station, which is characterized in that the base station is a second base station and includes:

接收模块，用于接收核心网设备发送的第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识；可选的，所述网络切片的信息还包括所述网络切片的优先级；The receiving module is configured to receive a first message sent by a core network device, where the first message is used to request information about network slices supported by at least one cell included in the second base station, or the first message is used to request Acquire information about the network slices supported by the at least one tracking area to which at least one cell belongs, included in the second base station, where the network slice information includes the identifier of the network slice; optionally, the network slice information further includes all The priority of the network slicing;

发送模块，用于向所述核心网设备发送第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The sending module is configured to send a second message to the core network device, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

可选的，该第二基站还可以实现上述第三方面及其第三方面中任意一种可能的实现方式所执行的方法。Optionally, the second base station may also implement the method performed by the foregoing third aspect and any one of the possible implementation manners of the third aspect.

第十二方面，本申请实施例提供了一种基站，该基站为第一基站，包括：In a twelfth aspect, an embodiment of the present application provides a base station, which is a first base station and includes:

生成模块，用于生成第一消息；A generating module for generating the first message;

发送模块，用于发送第一消息；The sending module is used to send the first message;

其中，所述第一消息包括所述第一基站支持的至少一个第一网络切片的信息，所述第一网络切片的信息包括所述第一网络切片的标识；可选的，所述第一网络切片的信息还包括所述第一网络切片的优先级；或者，所述第一消息包括所述第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和所述跟踪区域支持的至少一个第二网络切片的信息，所述第二网络切片的信息包括所述第二网络切片的标识；可选的，所述第二网络切片的信息还包括所述第二网络切片的优先级；Wherein, the first message includes information about at least one first network slice supported by the first base station, and the information about the first network slice includes an identifier of the first network slice; optionally, the first network slice The network slice information also includes the priority of the first network slice; or, the first message includes the identification of at least one tracking area to which at least one cell included in the first base station belongs and at least one tracking area supported by the tracking area. Information about a second network slice, where the information about the second network slice includes the identifier of the second network slice; optionally, the information about the second network slice further includes the priority of the second network slice;

可选的，该第一基站还可以实现上述第四方面及其第四方面中任意一种可能的实现方式所执行的方法。Optionally, the first base station may also implement the foregoing fourth aspect and the method executed in any one of the possible implementation manners of the fourth aspect.

第十三方面，本申请实施例提供了一种基站，该基站为第二基站，包括：In a thirteenth aspect, an embodiment of the present application provides a base station, which is a second base station, and includes:

接收模块，用于接收第一消息，所述第一消息包括第一基站支持的至少一个第一网络切片的信息，所述第一网络切片的信息包括所述第一网络切片的标识；可选的，所述第一网络切片的信息还包括所述第一网络切片的优先级；或者，所述第一消息包括所述第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和所述跟踪区域支持的至少一个第二网络切片的信息，所述第二网络切片的信息包括所述第二网络切片的标识；可选的，所述第二网络切片的信息还包括所述第二网络切片的优先级。A receiving module, configured to receive a first message, where the first message includes information about at least one first network slice supported by a first base station, and the information about the first network slice includes an identifier of the first network slice; optional , The information of the first network slice further includes the priority of the first network slice; or, the first message includes the identification of at least one tracking area to which at least one cell contained in the first base station belongs and the Information about at least one second network slice supported by the tracking area, the information about the second network slice includes an identifier of the second network slice; optionally, the information about the second network slice further includes the second network slice The priority of the network slice.

可选的，该第二基站还可以实现上述第五方面及其第五方面中任意一种可能的实现方式所执行的方法。Optionally, the second base station may also implement the foregoing fifth aspect and the method executed in any one of the possible implementation manners of the fifth aspect.

第十四方面，本申请实施例提供了一种基站，该基站为源基站，包括：In a fourteenth aspect, an embodiment of the present application provides a base station, which is a source base station, and includes:

发送模块，用于发送第一消息，所述第一消息用于请求将终端设备的N个PDU会话从所述源基站切换到目标基站中的目标小区，所述第一消息包括所述N个PDU会话中每个PDU会话的标识和所述目标小区的标识；The sending module is configured to send a first message, the first message is used to request to switch N PDU sessions of the terminal device from the source base station to the target cell in the target base station, and the first message includes the N The identifier of each PDU session in the PDU session and the identifier of the target cell;

接收模块，用于接收用于指示切换响应的第二消息，所述第二消息包括指示信息，所述指示信息用于指示在目标小区的资源不足的情况下，所述终端设备中M个PDU会话切换失败的原因是由于所述M个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的所述网络切片没有可用资源，N为正整数，M为小于或等于N的正整数。The receiving module is configured to receive a second message for indicating a handover response, where the second message includes indication information, and the indication information is used to indicate that the M PDUs in the terminal device are insufficient when the resources of the target cell are insufficient The reason for the session switching failure is that the network slices corresponding to the M PDU sessions have low priority in the tracking area to which the target cell belongs, and the network slices have no available resources. N is a positive integer, and M is less than or A positive integer equal to N.

可选的，该源基站还可以实现上述第六方面及其第六方面中任意一种可能的实现方式所执行的方法。Optionally, the source base station may also implement the above-mentioned sixth aspect and the method executed in any one of the possible implementation manners of the sixth aspect.

第十五方面，本申请实施例提供了一种基站，该基站为目标基站，包括：In a fifteenth aspect, an embodiment of the present application provides a base station, which is a target base station, and includes:

接收模块，用于接收第一消息，所述第一消息用于请求将终端设备中N个PDU会话从源基站切换到所述目标基站中的目标小区，所述第一消息包括所述N个PDU会话中每个PDU会话的标识、所述每个PDU会话对应的网络切片的标识和所述目标小区的标识；The receiving module is configured to receive a first message, the first message is used to request the switching of N PDU sessions in the terminal device from the source base station to the target cell in the target base station, and the first message includes the N The identifier of each PDU session in the PDU session, the identifier of the network slice corresponding to each PDU session, and the identifier of the target cell;

发送模块，用于发送用于指示切换响应的第二消息，所述第二消息包括指示信息，所述指示信息用于指示在目标小区的资源不足的情况下，所述终端设备中M个PDU会话切换失败的原因是由于所述M个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的所述网络切片没有可用资源，N为正整数，M为小于或等于N的正整数。The sending module is configured to send a second message for indicating a handover response, where the second message includes indication information, and the indication information is used to indicate M PDUs in the terminal device when the target cell has insufficient resources The reason for the session switching failure is that the network slices corresponding to the M PDU sessions have low priority in the tracking area to which the target cell belongs, and the network slices have no available resources. N is a positive integer, and M is less than or A positive integer equal to N.

可选的，该目标基站还可以实现上述第七方面及其第七方面中任意一种可能的实现方式所执行的方法。Optionally, the target base station may also implement the method performed by the seventh aspect and any one of the possible implementation manners of the seventh aspect.

第十六方面，本申请实施例提供了一种控制设备，包括：In a sixteenth aspect, an embodiment of the present application provides a control device, including:

接收模块，用于接收第一基站发送的第一消息，所述第一消息包括第二基站包含的目标小区的标识和指示信息，所述指示信息用于指示在目标小区的资源不足的情况下，终端设备中M个PDU会话切换失败的原因是由于所述M个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的所述网络切片没有可用资源，M为正整数；The receiving module is configured to receive a first message sent by the first base station, where the first message includes the identification and indication information of the target cell included in the second base station, and the indication information is used to indicate that the target cell has insufficient resources , The reason for the failure of the switching of M PDU sessions in the terminal device is that the network slices corresponding to the M PDU sessions have low priority in the tracking area to which the target cell belongs, and the network slices have no available resources. M is Positive integer;

发送模块，用于向所述第二基站发送第二消息，所述第二消息为所述目标小区所属的跟踪区域重新配置的网络切片的信息，所述网络切片的信息包括所述目标小区所属的跟踪区域支持的网络切片的标识和所支持的网络切片中各网络切片的优先级中的至少一个。The sending module is configured to send a second message to the second base station, where the second message is information about the reconfigured network slice of the tracking area to which the target cell belongs, and the information about the network slice includes the information about the network slice to which the target cell belongs At least one of the identification of the network slice supported by the tracking area and the priority of each network slice in the supported network slice.

可选的，该控制设备还可以实现上述第八方面及其第八方面中任意一种可能的实现方式所执行的方法。Optionally, the control device may also implement the method performed by the eighth aspect and any one of the possible implementation manners of the eighth aspect.

第十七方面，本申请实施例提供一种通信装置。该通信装置可以为上述设备设计中的基站，或者为设置在基站中的芯片。该通信装置包括：处理器、存储器和收发器；In a seventeenth aspect, an embodiment of the present application provides a communication device. The communication device may be the base station in the above device design, or a chip set in the base station. The communication device includes: a processor, a memory, and a transceiver;

收发器用于进行消息的接收和发送；The transceiver is used to receive and send messages;

存储器用于存储指令；The memory is used to store instructions;

处理器用于执行存储器存储的指令，当处理器执行存储器存储的指令时，使通信装置执行上述第一方面、第三方面、第四方面、第五方面、第六方面、第七方面及其各方面中任意一种可能的实现方式所执行的方法。The processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the communication device executes the above-mentioned first aspect, third aspect, fourth aspect, fifth aspect, sixth aspect, seventh aspect and each The method executed by any possible implementation in the aspect.

第十八方面，本申请实施例提供一种通信装置。该通信装置可以为上述设备设计中的核心网设备，或者为设置在核心网设备中的芯片。该通信装置包括：处理器、存储器和收发器；In an eighteenth aspect, an embodiment of the present application provides a communication device. The communication device may be the core network device in the above device design, or a chip set in the core network device. The communication device includes: a processor, a memory, and a transceiver;

存储器用于存储指令；The memory is used to store instructions;

处理器用于执行存储器存储的指令，当处理器执行存储器存储的指令时，使通信装置执行上述第二方面及其第二方面中任意一种可能的实现方式所执行的方法。The processor is configured to execute instructions stored in the memory. When the processor executes the instructions stored in the memory, the communication device executes the second aspect and the method executed by any one of the possible implementations of the second aspect.

第十九方面，本申请实施例提供一种通信装置。该通信装置可以为上述设备设计中的控制设备，或者为设置在控制设备中的芯片。该通信装置包括：处理器、存储器和收发器；In a nineteenth aspect, an embodiment of the present application provides a communication device. The communication device may be a control device in the above device design, or a chip set in the control device. The communication device includes: a processor, a memory, and a transceiver;

存储器用于存储指令；The memory is used to store instructions;

处理器用于执行存储器存储的指令，当处理器执行存储器存储的指令时，使通信装置执行上述第八方面及其第八方面中任意一种可能的实现方式所执行的方法。The processor is configured to execute instructions stored in the memory. When the processor executes the instructions stored in the memory, the communication device executes the eighth aspect and the method executed by any one of the eighth aspect.

第二十方面，本申请实施例提供了一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当计算机程序代码在计算机上运行时，使得计算机执行上述第一方面、第三方面、第四方面、第五方面、第六方面、第七方面及其各方面中任意可能的实现方式中的方法。In the twentieth aspect, the embodiments of the present application provide a computer program product. The computer program product includes: computer program code. When the computer program code runs on a computer, the computer executes the first, third, and The fourth aspect, the fifth aspect, the sixth aspect, the seventh aspect, and the method in any possible implementation manner of each aspect.

第二十一方面，本申请实施例提供了一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当计算机程序代码在计算机上运行时，使得计算机执行上述第二方面及其第二方面中任意可能的实现方式中的方法。In the twenty-first aspect, the embodiments of the present application provide a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the second aspect and the second aspect The method in any possible implementation.

第二十二方面，本申请实施例提供了一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当计算机程序代码在计算机上运行时，使得计算机执行上述第八方面及其第八方面中任意可能的实现方式中的方法。In the twenty-second aspect, the embodiments of the present application provide a computer program product, the computer program product includes: computer program code, when the computer program code runs on a computer, the computer executes the eighth aspect and the eighth aspect The method in any possible implementation.

第二十三方面，本申请实施例提供了一种可读存储介质，该可读存储介质用于存储指令，使上述第一方面、第三方面、第四方面、第五方面、第六方面、第七方面及其各方面中任意可能的实现方式被实现。In the twenty-third aspect, the embodiments of the present application provide a readable storage medium, which is used to store instructions to enable the aforementioned first, third, fourth, fifth, and sixth aspects to , The seventh aspect and any possible implementation manners of all aspects thereof are realized.

第二十四方面，本申请实施例提供了一种可读存储介质，该可读存储介质用于存储指令，使上述第二方面及其第二方面中任意可能的实现方式被实现。In a twenty-fourth aspect, an embodiment of the present application provides a readable storage medium, which is used to store instructions to enable the foregoing second aspect and any possible implementation manner of the second aspect to be implemented.

第二十五方面，本申请实施例提供了一种可读存储介质，该可读存储介质用于存储指令，使上述第八方面及其第八方面中任意可能的实现方式被实现。In the twenty-fifth aspect, the embodiments of the present application provide a readable storage medium, the readable storage medium is used to store instructions to implement the eighth aspect and any possible implementation manners in the eighth aspect.

第二十六方面，本申请实施例提供了一种通信***，该通信***包括第一基站、核心网设备和第二基站；其中，第一基站用于执行上述第一方面、第四方面、第六方面及其各方面中任意一种可能的实现方式所执行的方法；第二基站用于执行上述第三方面、第五方面、第七方面及其各方面中任意一种可能的实现方式所执行的方法；核心网设备用于执行上述第二方面及其第二方面中任意一种可能的实现方式所执行的方法。In the twenty-sixth aspect, embodiments of the present application provide a communication system, which includes a first base station, a core network device, and a second base station; wherein, the first base station is used to perform the above-mentioned first aspect, fourth aspect, The method executed by the sixth aspect and any one of the possible implementation manners of the various aspects; the second base station is used to execute any one of the foregoing third, fifth, and seventh aspects, and any one of the possible implementation manners thereof The executed method; the core network device is used to execute the method executed by the second aspect and any one of the possible implementations of the second aspect.

附图说明Description of the drawings

为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图进行说明。In order to more clearly describe the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be described below.

图1A为本申请实施例提供的一种可能的通信***架构示意图；FIG. 1A is a schematic diagram of a possible communication system architecture provided by an embodiment of this application;

图1B为本申请实施例提供的一种5G通信***中的CU-DU分离的基站的架构示意图；FIG. 1B is a schematic diagram of the architecture of a CU-DU separated base station in a 5G communication system according to an embodiment of this application;

图2为本申请实施例提供的一种通信方法的流程示意图；2 is a schematic flowchart of a communication method provided by an embodiment of this application;

图3为本申请实施例提供的另一种通信方法的流程示意图；FIG. 3 is a schematic flowchart of another communication method provided by an embodiment of this application;

图4为本申请实施例提供的另一种通信方法的流程示意图；4 is a schematic flowchart of another communication method provided by an embodiment of this application;

图5为本申请实施例提供的另一种通信方法的流程示意图；FIG. 5 is a schematic flowchart of another communication method provided by an embodiment of this application;

图6为本申请实施例提供的另一种通信方法的流程示意图；FIG. 6 is a schematic flowchart of another communication method provided by an embodiment of this application;

图7为本申请实施例提供的另一种通信方法的流程示意图；FIG. 7 is a schematic flowchart of another communication method provided by an embodiment of this application;

图8为本申请实施例提供的另一种通信方法的流程示意图；FIG. 8 is a schematic flowchart of another communication method provided by an embodiment of this application;

图9为本申请实施例提供的一种基站的结构示意图；FIG. 9 is a schematic structural diagram of a base station provided by an embodiment of this application;

图10为本申请实施例提供的另一种基站的结构示意图；FIG. 10 is a schematic structural diagram of another base station provided by an embodiment of this application;

图11为本申请实施例提供的一种核心网设备的结构示意图；FIG. 11 is a schematic structural diagram of a core network device provided by an embodiment of this application;

图12为本申请实施例提供的另一种核心网设备的结构示意图；FIG. 12 is a schematic structural diagram of another core network device provided by an embodiment of this application;

图13为本申请实施例提供的一种网络通信***的结构示意图；FIG. 13 is a schematic structural diagram of a network communication system provided by an embodiment of this application;

图14为本申请实施例提供的另一种网络通信***的结构示意图。FIG. 14 is a schematic structural diagram of another network communication system provided by an embodiment of this application.

具体实施类型Specific implementation type

下面将结合本申请实施例中的附图，对本申请实施例进行说明。The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

请参见图1A，为本申请实施例提供了一种可能的通信***架构示意图。该通信***包括核心网设备101、基站(如图1A所示的基站102和基站103)、终端设备(如图1A所示的终端设备104、终端设备105和终端设备106)。如图1A所示，可以看出，基站可以与至少一个终端设备相连接，例如，基站102分别与终端设备104和终端设备105相连接，基站103与终端设备106相连接。基站可以与至少一个核心网设备相连接，例如，基站102和基站103分别与核心网设备101相连接。Please refer to FIG. 1A, which provides a schematic diagram of a possible communication system architecture for an embodiment of this application. The communication system includes core network equipment 101, base stations (base station 102 and base station 103 as shown in FIG. 1A), terminal equipment (terminal equipment 104, terminal equipment 105, and terminal equipment 106 as shown in FIG. 1A). As shown in FIG. 1A, it can be seen that the base station can be connected to at least one terminal device. For example, the base station 102 is connected to the terminal device 104 and the terminal device 105, and the base station 103 is connected to the terminal device 106. The base station may be connected to at least one core network device, for example, the base station 102 and the base station 103 are connected to the core network device 101 respectively.

其中，核心网设备103分别与基站102和基站103之间存在通信接口，这样核心网设备103可以分别与基站102和基站103进行通信。例如该通信接口在本申请中称为N2接口或者NG接口。There are communication interfaces between the core network device 103 and the base station 102 and the base station 103 respectively, so that the core network device 103 can communicate with the base station 102 and the base station 103 respectively. For example, the communication interface is called N2 interface or NG interface in this application.

若基站102和基站103之间有通信接口，则两者可以直接通信，这里的直接通信是指两个基站可以不需要通过核心网设备或者其他设备进行通信。例如，基站102和基站103之间的通信接口可以称为Xn接口。If there is a communication interface between the base station 102 and the base station 103, the two can communicate directly. The direct communication here means that the two base stations may not need to communicate through core network equipment or other equipment. For example, the communication interface between the base station 102 and the base station 103 may be referred to as an Xn interface.

若基站102和基站103之间没有通信接口，则两者不可以直接通信，在一种可能的方式中，没有通信接口的两个基站可以通过核心网设备进行通信。If there is no communication interface between the base station 102 and the base station 103, they cannot communicate directly. In a possible way, two base stations without a communication interface can communicate through core network equipment.

本申请涉及的网络切片(network slice)是一个提供特定网络能力和网络特性的逻辑网络。它可以是在物理或者虚拟的网络基础设施之上，根据不同的服务需求或者租户等定制化的有不同网络能力和网络特性的逻辑网络。网络切片由一组网络功能及其所需的资源(例如，计算资源、存储资源、网络资源)构成。The network slice involved in this application is a logical network that provides specific network capabilities and network characteristics. It can be a logical network with different network capabilities and network characteristics customized according to different service requirements or tenants based on physical or virtual network infrastructure. A network slice is composed of a set of network functions and the required resources (for example, computing resources, storage resources, and network resources).

终端设备中存在多种类型的业务，例如增强的移动宽带业务(enhanced mobile broadband，eMBB)，超可靠低时延通信(ultra-reliable low latency communications，URLLC)，海量机器类通信(massive machine type communication，mMTC)等，而不同类型业务的PDU会话对应的网络切片可能不同，即使相同的业务类型，由于提供的运营商或者业务提供商不同，也可能对应不同的网络切片。There are multiple types of services in terminal equipment, such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), and massive machine type communications , MMTC), etc., and the network slices corresponding to the PDU sessions of different types of services may be different. Even if the same service type, due to different operators or service providers provided, it may correspond to different network slices.

在实际应用中，基站所支持的网络切片和网络切片的优先级会影响在该基站中能够建立的PDU会话。在无论两个基站是否建立Xn接口的情况下，现有的实现方案中这两个基站都无法确定对方所支持的网络切片的优先级。在两个基站未建立Xn接口的情况下，现有的实现方案中这两个基站无法确定对方所支持的网络切片。In practical applications, the network slices supported by the base station and the priority of the network slices will affect the PDU sessions that can be established in the base station. Regardless of whether the two base stations establish an Xn interface, in the existing implementation scheme, the two base stations cannot determine the priority of the network slice supported by each other. In the case that the two base stations have not established the Xn interface, the two base stations cannot determine the network slices supported by each other in the existing implementation solution.

在切换终端设备的PDU会话场景中，现有的实现方案中，源基站仅仅是基于终端设备上报的测量报告来确定是否切换以及确定所切换至的目标小区的，具体是如果终端设备上报的测量报告中目标小区的信号质量强度大于一定的阈值，则源基站请求将终端设备的PDU会话切换至目标基站的目标小区。然而，切换成功与否与多个因素相关，例如与目标小区所属的跟踪区域是否支持终端设备中的PDU会话对应的网络切片有关、与终端设备中的PDU会话对应的网络切片在该目标小区所属的跟踪区域中的优先级有关等。In the PDU session scenario of handover terminal equipment, in the existing implementation solution, the source base station only determines whether to handover and determines the target cell to be handed over based on the measurement report reported by the terminal equipment, specifically if the measurement reported by the terminal equipment The signal quality strength of the target cell in the report is greater than a certain threshold, the source base station requests to switch the PDU session of the terminal device to the target cell of the target base station. However, the success of handover is related to multiple factors, such as whether the tracking area to which the target cell belongs supports the network slice corresponding to the PDU session in the terminal device, and the network slice corresponding to the PDU session in the terminal device belongs to the target cell. The priority in the tracking area is related and so on.

举例来说，目标基站包含小区1和小区2，所支持的网络切片和网络切片的优先级情况如下：For example, the target base station includes cell 1 and cell 2, and the supported network slices and priority of network slices are as follows:

小区1：支持网络切片#11和网络切片#12；网络切片#11的优先级低于网络切片#12；Cell 1: Support network slice #11 and network slice #12; the priority of network slice #11 is lower than network slice #12;

小区2：支持网络切片#11和网络切片#13；网络切片#11的优先级高于网络切片#13；Cell 2: Support network slice #11 and network slice #13; network slice #11 has a higher priority than network slice #13;

假设终端设备正在和源基站进行PDU会话S1和PDU会话S2的通信，并在向目标基站移动。当终端设备上报的测量报告是小区1的信号强度大于一定的阈值时，源基站将选择目标基站中的小区1作为目标小区，并请求将终端设备的PDU会话S1和PDU会话S2切换至目标小区。如果终端设备的PDU会话S1对应的网络切片是网络切片#11，PDU会话S2对应的网络切片是网络切片#14。Assume that the terminal device is communicating with the source base station in PDU session S1 and PDU session S2, and is moving to the target base station. When the measurement report reported by the terminal device is that the signal strength of cell 1 is greater than a certain threshold, the source base station will select cell 1 in the target base station as the target cell, and request to switch the PDU session S1 and PDU session S2 of the terminal device to the target cell . If the network slice corresponding to the PDU session S1 of the terminal device is network slice #11, the network slice corresponding to the PDU session S2 is network slice #14.

由于小区1不支持网络切片#14，则目标基站会拒绝接纳PDU会话S2。Since cell 1 does not support network slice #14, the target base station will refuse to accept PDU session S2.

由于小区1中网络切片#11的优先级低于网络切片#12，终端设备在小区1中不能得到最优的服务，比如当小区1的负载过大时，优先保障小区1中网络切片#12所服务的其他终端设备，而实际在上述情况下，虽然小区2的信号强度低于小区1的信号强度，但小区2中网络切片#11具有高优先级，则终端设备在小区2中可以得到更优的服务。另外，在上述情况下，目标基站有可能会拒绝切换PDU会话S1，例如，由于网络切片#11在小区1所属的跟踪区域中的优先级较低，导致了网络切片#11在小区1负载高时没有可用资源。Since the priority of network slice #11 in cell 1 is lower than network slice #12, terminal equipment cannot get the optimal service in cell 1. For example, when the load of cell 1 is too large, network slice #12 in cell 1 is given priority Other terminal equipment served, and in the above situation, although the signal strength of cell 2 is lower than the signal strength of cell 1, but network slice #11 in cell 2 has a high priority, the terminal device can be obtained in cell 2 Better service. In addition, in the above situation, the target base station may refuse to switch PDU session S1. For example, because network slice #11 has a low priority in the tracking area to which cell 1 belongs, the load of network slice #11 in cell 1 is high. When there are no resources available.

结合上述举例，一方面可以看出：现有技术方案中由于源基站无法确定目标小区支持的网络切片以及所支持的网络切片中各网络切片的优先级情况，会发生因无法确定该信息而切换失败的情况，例如由于目标小区不支持终端设备的PDU会话对应的网络切片，则目标基站会拒绝该PDU会话的切换；又如，如果由于终端设备的PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低导致了该网络切片没有可用资源，则目标基站会拒绝该PDU会话的切换。这样降低了切换成功的概率。Combining the above examples, on the one hand, it can be seen that in the prior art solution, because the source base station cannot determine the network slices supported by the target cell and the priority of each network slice in the supported network slices, handover occurs because the information cannot be determined. In the case of failure, for example, because the target cell does not support the network slice corresponding to the PDU session of the terminal device, the target base station will reject the handover of the PDU session; for another example, if the network slice corresponding to the PDU session of the terminal device is in the target cell The low priority in the tracking area causes the network slice to have no available resources, and the target base station will reject the switching of the PDU session. This reduces the probability of a successful handover.

而在本申请的一种可能实现方式中，第一基站(例如为上述举例中的源基站)可以获取到第二基站(例如为上述举例中的目标基站)包含的至少一个小区(例如为上述举例中的目标小区)所属的至少一个跟踪区域所支持的网络切片的标识和所支持的网络切片中各网络切片的优先级。这样由于第一基站可以获取到目标基站包含的至少一个小区所属至少一个跟踪区域支持的网络切片以及所支持的网络切片中各网络切片的优先级情况，有助于优化网络的切换性能。In a possible implementation manner of the present application, the first base station (for example, the source base station in the above example) can obtain at least one cell (for example, the source base station in the above example) included in the second base station (for example, the target base station in the above example). The identification of the network slice supported by at least one tracking area to which the target cell in the example belongs and the priority of each network slice in the supported network slice. In this way, since the first base station can obtain the network slices supported by at least one tracking area of at least one cell included in the target base station and the priority of each network slice in the supported network slices, it helps to optimize the handover performance of the network.

结合上述举例，另一方面：如果切换失败，在现有的目标基站向源基站发送的切换响应消息中，仅仅包含目标小区拒绝终端设备接入的响应消息，这样源基站无法确定切换失败的原因。如果切换失败是由于终端设备的PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的该网络切片没有可用资源造成的，但因为源基站无法确定此次切换失败的原因，对于源基站需要下一次请求将与该网络切片对应的PDU会话切换至目标小区的情况，源基站依旧会发送切换请求，依旧会切换失败，降低了切换成功的概率。Combining the above examples, on the other hand: if the handover fails, the existing handover response message sent by the target base station to the source base station only contains the response message that the target cell refuses to access the terminal device, so the source base station cannot determine the cause of the handover failure . If the handover failure is due to the low priority of the network slice corresponding to the PDU session of the terminal device in the tracking area to which the target cell belongs, the network slice has no available resources, but because the source base station cannot determine the handover failure The reason is that for the case where the source base station needs to request the next time to switch the PDU session corresponding to the network slice to the target cell, the source base station will still send a handover request, and the handover will still fail, which reduces the probability of a successful handover.

而在本申请的另一种可能实现方式中，在目标基站在拒绝终端设备接入的响应消息中可以包括指示信息，该指示信息用于指示在目标小区的资源不足的情况下，终端设备中至少一个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致所述网络切片没有可用资源。这样由于源基站可以确定此次切换失败的原因，对于源基站需要下一次请求将与该网络切片对应的PDU会话切换至目标小区的情况，源基站可以参考先前目标基站发送的指示信息来决定是否切换至该目标基站，提高了切换成功的概率。In another possible implementation manner of the present application, the target base station may include indication information in the response message that the terminal device is denied access. The indication information is used to indicate that in the case of insufficient resources in the target cell, the terminal device The network slice corresponding to at least one PDU session has a low priority in the tracking area to which the target cell belongs, resulting in no available resources for the network slice. In this way, since the source base station can determine the cause of the handover failure, for the next time the source base station needs to request to switch the PDU session corresponding to the network slice to the target cell, the source base station can refer to the previous indication sent by the target base station to determine whether Switching to the target base station improves the probability of a successful handover.

接下来，本申请实施例中可能涉及的各网元、各专业词的描述如下：Next, the description of each network element and each professional term that may be involved in the embodiment of this application is as follows:

终端设备：可以为用户设备(user equipment，UE)，UE是通过基站来实现接入网络侧的，例如可以是手持终端设备、笔记本电脑、用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handheld)、膝上型电脑(laptop computer)、无绳电话(cordless phone)或者无线本地环路(wireless local loop，WLL)台、机器类型通信(machine type communication，MTC)终端或是其他可以接入网络的设备。Terminal equipment: It can be a user equipment (UE), and the UE is connected to the network side through a base station. For example, it can be a handheld terminal device, a notebook computer, a subscriber unit, a cellular phone, Smart phone (smart phone), wireless data card, personal digital assistant (personal digital assistant, PDA) computer, tablet computer, wireless modem (modem), handheld device (handheld), laptop computer (laptop computer), cordless phone (cordless phone) or wireless local loop (wireless local loop, WLL) station, machine type communication (machine type communication, MTC) terminal or other devices that can access the network.

基站：主要负责空口侧的无线资源管理、服务质量(quality of service，QoS)管理、数据压缩和加密等功能。Base station: Mainly responsible for radio resource management, quality of service (QoS) management, data compression and encryption on the air interface side.

核心网设备可以是接入和移动性管理功能(access and mobility management function，AMF)，主要负责接入控制、移动性管理(mobility management，MM)、附着与去附着以及网关选择等功能。本申请实施例所涉及的核心网设备不限于AMF。The core network equipment may be an access and mobility management function (AMF), which is mainly responsible for functions such as access control, mobility management (MM), attachment and detachment, and gateway selection. The core network equipment involved in the embodiments of this application is not limited to the AMF.

控制设备：用于配置各个跟踪区域所支持的网络切片和所支持的网络切片中各网络切片的优先级；以及配置小区所属的跟踪区域等。这里控制设备可以为操作管理维护(operation administration and maintenance，OAM)***，或者为网络管理***，本申请对控制设备的命名方式不做限定。Control device: used to configure the network slices supported by each tracking area and the priority of each network slice in the supported network slices; and configure the tracking area to which the cell belongs. Here, the control device may be an operation administration and maintenance (OAM) system or a network management system. This application does not limit the naming method of the control device.

跟踪区域(tracking area，TA)是通信***中终端设备的位置管理的基本单位，由一个或多个小区组成。其中，小区是一个基站所覆盖的区域或者是基站所覆盖的一部分区域，TA可以包含多个基站包括的小区。一个小区只能属于一个TA。对哪些网络切片的支持和所支持的网络切片中各网络切片的优先级是控制设备来配置的，属于同一个TA的不同小区所支持的网络切片是相同的，并且所支持的网络切片中各网络切片的优先级顺序在各个小区中是相同的。Tracking area (TA) is the basic unit of location management of terminal equipment in a communication system, and it consists of one or more cells. Wherein, a cell is an area covered by a base station or a part of an area covered by a base station, and a TA may include cells included by multiple base stations. A cell can only belong to one TA. Which network slices are supported and the priority of each network slice in the supported network slices are configured by the control device. The network slices supported by different cells belonging to the same TA are the same, and each of the supported network slices The priority order of network slicing is the same in each cell.

需要指出的是，对本申请任一实施例中所涉及的基站包含的至少一个小区所属的至少一个TA支持的网络切片的信息，进行一下几点说明：It should be pointed out that the base station involved in any embodiment of this application includes at least one cell to which at least one TA supports the network slice information, the following points are explained:

1、这里的至少一个小区为该基站包含全部小区中的部分或者全部小区；本申请任意实施例对此不做限定；1. The at least one cell here is part or all of the cells included in the base station; this is not limited in any embodiment of the present application;

2、一个小区仅能被划分至一个TA，至少一个小区所属的至少一个TA包括至少一个小区中每个小区被划分至的TA。2. A cell can only be divided into one TA, and at least one TA to which at least one cell belongs includes the TA to which each cell in the at least one cell is divided.

例如，假设至少一个小区包括小区11、小区12和小区13；小区11被划分至TA01；小区12被划分至TA02；小区13被划分至TA02；则至少一个小区所属的至少一个TA包括TA01和TA02。For example, suppose that at least one cell includes cell 11, cell 12, and cell 13; cell 11 is divided into TA01; cell 12 is divided into TA02; cell 13 is divided into TA02; then at least one TA to which at least one cell belongs includes TA01 and TA02 .

3、在一种可选的方式中“至少一个小区所属的至少一个TA支持的网络切片的信息”可以通过至少一个TA的标识以及至少一个TA中每个TA所支持的网络切片的信息来指示。3. In an optional manner, the "information of the network slice supported by at least one TA to which at least one cell belongs" may be indicated by the identification of the at least one TA and the information of the network slice supported by each TA in the at least one TA .

其中，具体表现形式如下(名称只是示意，本申请实施例对名称不做限定)，跟踪区域的标识可以采用跟踪区标识(tracking area identity，TAI)或者跟踪区域码(tracking area code，TAC)来表示。Among them, the specific form of expression is as follows (the name is only indicative, and the embodiment of this application does not limit the name), and the identification of the tracking area can be a tracking area identity (TAI) or a tracking area code (TAC) Said.

一个TA所支持的网络切片的信息可以包括该TA所支持的至少一个网络切片中各网络切片的标识；可选的，该网络切片信息还可以包括所述至少一个网络切片中各网络切片的优先级(priority)。示例性地，网络切片标识可以用单一网络切片选择辅助信息(single network slice selection assistance information，S-NSSAI)来表示。The information of a network slice supported by a TA may include the identification of each network slice in at least one network slice supported by the TA; optionally, the network slice information may also include the priority of each network slice in the at least one network slice. Priority. Exemplarily, the network slice identification may be represented by a single network slice selection assistance information (S-NSSAI).

一个TA所支持的至少一个网络切片中各网络切片的优先级表示该各网络切片在这一TA中的优先级。The priority of each network slice in at least one network slice supported by one TA indicates the priority of each network slice in this TA.

示例1，一个TAI或者TAC可以与所支持的网络切片的信息(这里的网络切片的信息包括网络切片的标识和网络切片的优先级的数值)相对应：Example 1: A TAI or TAC can correspond to the information of the supported network slice (the network slice information here includes the identifier of the network slice and the value of the priority of the network slice):

>>>TAI或者TAC>>>TAI or TAC

>>>S-NSSAI 1 priority 1>>>S-NSSAI 1 priority 1

S-NSSAI 2 priority 2S-NSSAI 2 priority 2

S-NSSAI 3 priority 3S-NSSAI 3 priority 3

在该示例中，每个网络切片对应一个优先级数值，该数值指示了该网络切片在3个网络切片中的排序，其中，网络切片的优先级数值越小，则代表该网络切片的优先级越高。或者反之，网络切片的优先级数值越大，则代表该网络切片的优先级越高。In this example, each network slice corresponds to a priority value, which indicates the order of the network slice among the three network slices. The smaller the priority value of the network slice, the lower the priority of the network slice. Higher. Or conversely, the larger the priority value of the network slice, the higher the priority of the network slice.

示例2，一个TAI或者TAC可以与所支持的网络切片的信息(这里的网络切片的信息包括网络切片的标识和网络切片按优先级的排序)相对应：Example 2: A TAI or TAC can correspond to the information of the supported network slices (the network slice information here includes the identification of the network slice and the order of the network slices according to priority):

>>>TAI或者TAC>>>TAI or TAC

>>>S-NSSAI 1>>>S-NSSAI 1

S-NSSAI 2S-NSSAI 2

S-NSSAI 3S-NSSAI 3

例如，可以通过一个网络切片列表指示，列表中从上往下或者从前往后的网络切片表示网络切片的优先级从高到低。或者反之，列表中从上往下或者从前往后的网络切片表示网络切片的优先级从低到高。For example, it can be indicated by a list of network slices, and the network slices from the top to the bottom or from the front to the back in the list indicate that the priority of the network slices is from high to low. Or vice versa, network slices from top to bottom or from top to bottom in the list indicate that the priority of network slices is from low to high.

4、在本申请的任一实施例中所涉及到S-NSSAI至少包括切片类型/服务类型(slice/service type，SST)信息，可选的还可以包括切片区分信息(slice differentiator，SD)。SST信息用于指示网络切片的行为，例如网络切片的特征以及服务类型，SD信息是SST的补足信息，若SST指向多个网络切片，那么SD可以辅助对应到唯一的一个网络切片。4. The S-NSSAI involved in any of the embodiments of the present application includes at least slice type/service type (SST) information, and optionally may also include slice differentiator (SD). The SST information is used to indicate the behavior of the network slicing, such as the characteristics of the network slicing and the service type. The SD information is the supplementary information of the SST. If the SST points to multiple network slices, the SD can assist in corresponding to only one network slice.

应理解，在本申请实施例中，网络切片的标识可以用网络切片类型表示，或者也可以用网络切片类型和业务类型表示，或者也可以用业务类型加租户信息表示等，本申请实施例对此不作限定。可选的，网络切片的标识的具体编码形式不限，可以承载在不同设备之间的接口消息的不同字段分别代表不同的网络切片，或者可以通过抽象后的索引值代替，不同的索引值分别对应不同的网络切片。当然，除了上述的标识外，还可以是其他的标识，在此不作限定。It should be understood that, in the embodiments of this application, the identifier of the network slice can be represented by a network slice type, or can also be represented by a network slice type and a service type, or can also be represented by a service type plus tenant information, etc. This is not limited. Optionally, the specific encoding form of the identifier of the network slice is not limited, and different fields of the interface message carried between different devices can represent different network slices, or can be replaced by abstracted index values, and different index values are respectively Corresponding to different network slices. Of course, in addition to the above-mentioned logo, it can also be other logos, which are not limited here.

又一需要说明的是，在本申请实施例中，如果基站1确定了基站2包含的小区1的标识，则基站1可以确定该小区1所属的TA。其中，小区1为基站2包含的任意一个小区。It should be noted that, in this embodiment of the application, if base station 1 determines the identity of cell 1 included in base station 2, base station 1 can determine the TA to which cell 1 belongs. Among them, cell 1 is any cell included in base station 2.

示例性地，基站1和基站2可以在建立通信接口的过程中，相互向对方发送自身基站所包含的各个小区的标识和各个小区所属的TA的标识。这样基站1可以确定基站2包含的小区1所属的TA。Exemplarily, the base station 1 and the base station 2 may send each other the identities of the cells included in their base stations and the identities of the TAs to which each cell belongs to each other in the process of establishing a communication interface. In this way, base station 1 can determine the TA to which cell 1 contained in base station 2 belongs.

示例性地，基站1服务的终端设备可以接收到基站2的广播消息，进而确定基站2包含的各个小区的标识和各个小区所属的TA的标识。基站1可以通过该终端设备上报的测量报告，确定基站2包含的各个小区的标识和各个小区所属的TA的标识。Exemplarily, a terminal device served by base station 1 can receive a broadcast message from base station 2, and then determine the identity of each cell included in base station 2 and the identity of the TA to which each cell belongs. The base station 1 can determine the identity of each cell included in the base station 2 and the identity of the TA to which each cell belongs through the measurement report reported by the terminal device.

又一需要说明的是，本申请各实施例中涉及的基站(例如第一基站、第二基站、源基站或者目标基站)可以是下一代基站(next generation NodeB，gNB)或者下一代演进型基站(next generation-evolved NodeB，ng-eNB)。其中，gNB为终端设备提供新空口(new radio,NR)的用户面功能和控制面功能,ng-eNB为终端设备提供演进型通用陆地无线接入(evolved universal terrestrial radio access,E-UTRA)的用户面功能和控制面功能，需要说明的是，gNB和ng-eNB仅是一种名称，用于表示支持5G网络***的基站，并不具有限制意义。各实施例中涉及的基站还可以是WCDMA***中的基站(nodeB，NB)，还可以是LTE***中的演进型基站(evolved node B，eNB或eNodeB)。或者，各实施例中涉及的基站还可以为中继站、接入点、车载设备、可穿戴设备以及5G之后的网络中的网络侧设备或未来演进的PLMN网络中的网络设备、路边站点单元(road site unit，RSU)等。It should also be noted that the base station (for example, the first base station, the second base station, the source base station, or the target base station) involved in each embodiment of the present application may be a next generation NodeB (gNB) or a next generation evolved base station (next generation-evolved NodeB, ng-eNB). Among them, gNB provides new radio (NR) user plane functions and control plane functions for terminal equipment, and ng-eNB provides terminal equipment with evolved universal terrestrial radio access (E-UTRA). User plane functions and control plane functions. It should be noted that gNB and ng-eNB are only a name used to indicate a base station supporting a 5G network system and do not have a restrictive meaning. The base station involved in each embodiment may also be a base station (nodeB, NB) in a WCDMA system, or an evolved node (evolved node B, eNB or eNodeB) in an LTE system. Alternatively, the base stations involved in each embodiment may also be relay stations, access points, in-vehicle devices, wearable devices, and network side devices in the network after 5G or network devices in the future evolved PLMN network, and roadside station units ( road site unit, RSU) etc.

图1B示出了一种5G通信***中的CU-DU分离的基站的架构示意图。如图1B所示，5G通信***包括下一代核心网(next generation core，5GC)和连接5GC的无线接入网(radio access network，RAN)节点。RAN节点可以为gNB或者ng-eNB。RAN节点可以通过NG-C(next generation control)接口和NG-U(next generation user)接口与5GC连接。为了便于说明，图1B中仅示出了一个gNB和一个ng-eNB。FIG. 1B shows a schematic diagram of the architecture of a base station with CU-DU separation in a 5G communication system. As shown in FIG. 1B, the 5G communication system includes a next generation core network (next generation core, 5GC) and a radio access network (radio access network, RAN) node connected to the 5GC. The RAN node can be a gNB or an ng-eNB. The RAN node can be connected to the 5GC through the NG-C (next generation control) interface and the NG-U (next generation user) interface. For ease of description, only one gNB and one ng-eNB are shown in FIG. 1B.

可选的，gNB和gNB之间、gNB和ng-eNB之间、或者ng-eNB和ng-eNB之间可以通过Xn接口进行连接。一个gNB或者ng-eNB可以包括一个集中式单元(central unit，CU)和一个或多个分布式单元(distributed unit，DU)。比如，如图1B所示的一个gNB或者ng-eNB包括一个CU和两个DU。进一步的，一个CU可以包括一个集中式单元控制面(CU-control plane function，CU-CP)和一个或多个集中式单元用户面(CU-user plane function，CU-UP)。其中，CU和DU之间可以通过F1接口进行连接，CU-CP和CU-UP之间可以通过E1接口进行连接，CU-CP和DU之间可以通过F1的控制面接口(F1-C)进行连接，CU-UP和DU之间可以通过F1的用户面接口(F1-U)进行连接。Optionally, the connection between gNB and gNB, between gNB and ng-eNB, or between ng-eNB and ng-eNB can be connected through an Xn interface. A gNB or ng-eNB may include a centralized unit (central unit, CU) and one or more distributed units (DU). For example, one gNB or ng-eNB as shown in FIG. 1B includes one CU and two DUs. Further, a CU may include a centralized unit control plane (CU-control plane function, CU-CP) and one or more centralized unit user planes (CU-user plane function, CU-UP). Among them, the CU and DU can be connected through the F1 interface, the CU-CP and CU-UP can be connected through the E1 interface, and the CU-CP and DU can be connected through the F1 control plane interface (F1-C) Connection, CU-UP and DU can be connected through the F1 user interface (F1-U).

如图1B中所示，实线代表控制面传输，虚线代表用户面传输。CU和DU的功能切分可以按照协议栈进行切分。其中，一种可能的方式是将无线资源控制(radio resource control，RRC)以及分组数据汇聚协议(packet data convergence protocol，PDCP)层和业务数据适应(service data adaptation protocol，SDAP)层部署在CU。无线链路层控制协议(radio link control，RLC)、媒体接入控制(media access control，MAC)、物理层(physical layer，PHY)部署在DU。相应地，CU具有RRC、PDCP和SDAP的处理能力。DU具有RLC、MAC、和PHY的处理能力。值得注意的是，上述功能切分只是一个例子，还有可能有其他切分的方式。例如，CU包括RRC、PDCP、RLC和SDAP的处理能力，DU具有MAC、和PHY的处理能力。又例如CU包括RRC、PDCP、RLC、SDAP和部分MAC(例如加MAC包头)的处理能力，DU具有PHY和部分MAC(例如调度)的处理能力。CU、DU的名字可能会发生变化，只要能实现上述功能的接入网节点都可以看做是本申请中的CU、DU。CU-CP具有CU的控制面功能，例如，RRC的处理能力，和PDCP中的控制面处理能力。CU-UP具有CU的用户面功能，例如，SDAP的处理能力，和PDCP中的用户面处理能力。As shown in Figure 1B, the solid line represents control plane transmission, and the dashed line represents user plane transmission. The function division of CU and DU can be divided according to the protocol stack. Among them, one possible way is to deploy a radio resource control (Radio Resource Control, RRC), a Packet Data Convergence Protocol (PDCP) layer and a Service Data Adaptation Protocol (SDAP) layer in the CU. The radio link layer control protocol (radio link control, RLC), media access control (media access control, MAC), and physical layer (physical layer, PHY) are deployed in the DU. Correspondingly, the CU has the processing capabilities of RRC, PDCP and SDAP. DU has the processing capabilities of RLC, MAC, and PHY. It is worth noting that the above function segmentation is just an example, and there may be other segmentation methods. For example, the CU includes processing capabilities of RRC, PDCP, RLC, and SDAP, and the DU has processing capabilities of MAC and PHY. For another example, the CU includes the processing capabilities of RRC, PDCP, RLC, SDAP, and part of the MAC (for example, adding a MAC header), and the DU has the processing capability of PHY and part of the MAC (for example, scheduling). The names of CU and DU may change, as long as the access network node that can realize the above-mentioned functions can be regarded as CU and DU in this application. The CU-CP has the control plane functions of the CU, for example, the processing capabilities of RRC and the control plane processing capabilities in PDCP. CU-UP has the user plane functions of CU, for example, the processing capabilities of SDAP and the user plane processing capabilities in PDCP.

又一需要说明的是，本申请各实施例中涉及的基站(例如第一基站、第二基站、源基站或者目标基站)所执行的步骤，可以是基站(如gNB和ng-eNB)、CU、或者CU-CP来执行，本申请对此不做限定。It should also be noted that the steps performed by the base stations (such as the first base station, the second base station, the source base station, or the target base station) involved in each embodiment of the present application may be base stations (such as gNB and ng-eNB), CU , Or CU-CP to execute, this application does not limit this.

本申请实施例可应用于其它支持网络切片的通信***中，例如，5G通信***。术语“***”可以和“网络”相互替换。本申请实施例描述的***架构是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变，本申请实施例提供的技术方案对于类似的技术问题，同样适用。The embodiments of the present application can be applied to other communication systems supporting network slicing, for example, a 5G communication system. The term "system" can be replaced with "network". The system architecture described in the embodiments of this application is to illustrate the technical solutions of the embodiments of this application more clearly, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that as the network architecture evolves The technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

接下来对本申请的实施例进行描述。Next, the embodiments of the present application will be described.

请参见图2，为本申请提供的一种通信方法的流程示意图。请参见图2，该通信方法涉及的设备有：第一基站和核心网设备，在图2实施例中，第一基站与核心网设备之间存在通信接口，这样第一基站与核心网设备可以进行通信。图2所示实施例应用于第一基站向核心网设备请求获取第二基站所支持的网络切片的信息。图2所示的方法包括步骤201至步骤202。Please refer to Fig. 2, which is a schematic flowchart of a communication method provided by this application. Refer to Figure 2. The equipment involved in the communication method includes: a first base station and a core network device. In the embodiment of Figure 2, there is a communication interface between the first base station and the core network device, so that the first base station and the core network device can To communicate. The embodiment shown in FIG. 2 is applied to a first base station requesting a core network device to obtain information about a network slice supported by a second base station. The method shown in FIG. 2 includes step 201 to step 202.

201，第一基站向核心网设备发送第一消息。201: The first base station sends a first message to a core network device.

相应的，核心网设备接收第一基站发送的第一消息。Correspondingly, the core network device receives the first message sent by the first base station.

一种可能的情况下，该第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，网络切片的信息包括网络切片的标识；可选的，网络切片的信息还包括网络切片的优先级。In a possible situation, the first message is used to request information about the network slice supported by at least one cell included in the second base station, and the network slice information includes the identifier of the network slice; optionally, the network slice information is also Including the priority of network slicing.

示例性地，第一消息包括第二基站的标识。这一情况下，该第一消息用于获取第二基站包含的全部小区中各小区所支持的网络切片的信息。Exemplarily, the first message includes the identity of the second base station. In this case, the first message is used to obtain information about the network slices supported by each cell in all the cells included in the second base station.

示例性地，第一消息包括第二基站的标识和第二基站包含的至少一个小区中各小区的标识。这一情况下，该第一消息用于获取至少一个小区中各小区所支持的网络切片的信息。Exemplarily, the first message includes the identity of the second base station and the identity of each cell in at least one cell included in the second base station. In this case, the first message is used to obtain information about network slices supported by each cell in at least one cell.

另一种可能的情况下，该第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息，网络切片的信息包括网络切片的标识；可选的，网络切片的信息还包括网络切片的优先级。In another possible case, the first message is used to request to obtain information about a network slice supported by at least one TA to which at least one cell belongs, included in the second base station, and the network slice information includes the identifier of the network slice; optional , The network slice information also includes the priority of the network slice.

示例性地，该第一消息包括第二基站的标识。这一情况下，该第一消息用于获取第二基站包含的全部小区所属的至少一个TA所支持的网络切片的信息。Exemplarily, the first message includes the identity of the second base station. In this case, the first message is used to obtain information about network slices supported by at least one TA to which all cells included in the second base station belong.

示例性地，该第一消息包括第二基站的标识和第二基站包含的至少一个小区所属的至少一个TA的标识。这一情况下，该第一消息用于获取一个或者多个TA所支持的网络切片的信息，其中，一个或者多个TA是第二基站的TA集合的子集，第二基站的TA集合包括第二基站包含的全部小区分别所属的至少一个TA。Exemplarily, the first message includes the identity of the second base station and the identity of at least one TA to which at least one cell contained in the second base station belongs. In this case, the first message is used to obtain information about the network slices supported by one or more TAs, where the one or more TAs are a subset of the TA set of the second base station, and the TA set of the second base station includes At least one TA to which all cells included in the second base station belong respectively.

可选的，第一基站可以通过各个终端设备上报的测量报告或者预先的配置信息，获知以下至少一项：第二基站的标识、第二基站所包含的小区标识和第二基站所包含各小区分别所属的TA标识。Optionally, the first base station may learn at least one of the following through the measurement report or pre-configuration information reported by each terminal device: the identity of the second base station, the cell identity included in the second base station, and the cells included in the second base station The TA identification to which they belong.

202，核心网设备向第一基站发送第二消息。202. The core network device sends a second message to the first base station.

相应的，第一基站接收核心网设备发送的第二消息。其中，第二消息包括第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。这里的至少一个小区所属的至少一个TA所支持的网络切片的信息也就是该至少一个小区所支持的网络切片的信息。即，一个小区所属的TA所支持的网络切片的信息等同于该一个小区所支持的网络切片的信息。这样在第一消息用于请求第二基站包含的至少一个小区所支持的网络切片的信息的情况下，第二基站所反馈的第二消息也是包括第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。Correspondingly, the first base station receives the second message sent by the core network device. Wherein, the second message includes information of a network slice supported by at least one TA to which at least one cell belongs and included in the second base station. The information of the network slice supported by the at least one TA to which at least one cell belongs here is also the information of the network slice supported by the at least one cell. That is, the information of the network slice supported by the TA to which one cell belongs is equivalent to the information of the network slice supported by the one cell. In this way, in the case that the first message is used to request information about the network slices supported by at least one cell contained in the second base station, the second message fed back by the second base station also includes at least one cell to which at least one cell contained in the second base station belongs. Information about network slices supported by TA.

在核心网设备接收到第一基站发送的第一消息之后，核心网设备判断是否存储有第一基站请求获取的网络切片的信息；若是，则核心网设备将该信息发送给第一基站。After the core network device receives the first message sent by the first base station, the core network device determines whether the information of the network slice requested by the first base station is stored; if so, the core network device sends the information to the first base station.

可以理解的是，这里涉及的核心网设备所存储的第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息的由来可以但不限于以下方式：核心网设备与第二基站之间存在通信接口，核心网设备通过与第二基站通信获得了该网络切片的信息；控制设备对核心网设备配置了与该核心网设备连接的基站的网络切片的信息，其中包括第二基站的网络切片的信息。It is understandable that the origin of the information about the network slice supported by at least one TA to which at least one cell belongs and contained in the second base station stored by the core network device involved here can be but not limited to the following manners: the core network device and the second base station There is a communication interface between the core network equipment and the second base station to obtain the network slice information; the control equipment configures the core network equipment with the network slice information of the base station connected to the core network equipment, including the second base station Information about the network slice.

接下来对步骤202中的第二消息进行示例性说明：Next, the second message in step 202 is exemplified:

示例一：在第二基站包含的全部小区均属于TA1，接收到的第一消息包括第二基站的标识的情况下，或者接收到的第一消息包括第二基站的标识和TA1的情况下，则核心网设备所发送的第二消息中可以包括的内容参见表1，TA1所支持的网络切片包括网络切片#21、网络切片#22、网络切片#23、网络切片#24。可选的，第二消息还包括支持的各个网络切片对应的优先级如表1所示。这里的第一等级是高于第二等级的优先级，以此类推。可选的，第二消息中还可以包括TA1的标识。这样第一基站可以通过第二消息确定第二基站包含的全部小区所属的TA1支持的网络切片的信息。Example 1: In the case where all the cells contained in the second base station belong to TA1 and the received first message includes the identity of the second base station, or the received first message includes the identity of the second base station and TA1, The content that can be included in the second message sent by the core network device is shown in Table 1. The network slices supported by TA1 include network slice #21, network slice #22, network slice #23, and network slice #24. Optionally, the second message also includes the priority corresponding to each supported network slice, as shown in Table 1. The first level here is a priority higher than the second level, and so on. Optionally, the second message may also include the identification of TA1. In this way, the first base station can determine, through the second message, the information of the network slice supported by the TA1 to which all cells contained in the second base station belong.

表1Table 1

示例二：在第二基站包含的不同小区属于不同的TA的情况下，例如，请参见表2，第二基站包含的不同小区属于不同的TA，第二基站包含5个小区，分别为小区C21、C22、C23、C24、C25；各个小区分别所属的TA如表2所示。Example 2: In the case where the different cells included in the second base station belong to different TAs, for example, refer to Table 2. The different cells included in the second base station belong to different TAs, and the second base station includes 5 cells, namely cell C21 , C22, C23, C24, C25; The TA to which each cell belongs is shown in Table 2.

表2Table 2

小区标识Cell ID	C21C21	C22C22	C23C23	C24C24	C25C25
所属TA的标识ID of the TA	TA1TA1		TA 1TA 1	TA 2TA 2	TA 2TA 2	TA 3TA 3

如果接收到的第一消息只包括第二基站的标识，则核心网设备所发送的第二消息中可以包括的内容参见表3，包括TA的标识TA1、TA2和TA3，以及TA1、TA2和TA3分别支持的网络切片的标识。可选的，第二消息还可以包括以下参数中的至少一项：TA1支持的网络切片的优先级、TA2支持的网络切片的优先级和TA3支持的网络切片的优先级。这样第一基站可以通过第二消息确定第二基站包含的全部小区所属的至少一个TA支持的网络切片的信息。If the received first message only includes the identifier of the second base station, see Table 3 for the content that can be included in the second message sent by the core network device, including the TA identifiers TA1, TA2, and TA3, and TA1, TA2, and TA3 The identification of the network slices respectively supported. Optionally, the second message may further include at least one of the following parameters: the priority of the network slice supported by TA1, the priority of the network slice supported by TA2, and the priority of the network slice supported by TA3. In this way, the first base station can determine the information of the network slice supported by at least one TA to which all cells included in the second base station belong through the second message.

表3table 3

如果接收到的第一消息包括第二基站的标识，还包括TA1、TA2和TA3中的至少一个TA的标识，例如包括TA2和TA3的情况，则核心网设备所发送的第二消息中可以包括的内容参见表4，包括TA的标识TA2和TA3，以及TA2支持的网络切片的标识和TA3支持的网络切片的标识。可选的，第二消息还可以包括以下参数中的至少一项：TA2支持的网络切片的优先级和TA3支持的网络切片的优先级。这样第一基站可以通过第二消息确定TA2和TA3分别支持的网络切片的信息。If the received first message includes the identifier of the second base station and also includes the identifier of at least one of TA1, TA2, and TA3, for example, including TA2 and TA3, the second message sent by the core network device may include Refer to Table 4 for the content, including TA identifiers TA2 and TA3, as well as the network slice identifiers supported by TA2 and the network slice identifiers supported by TA3. Optionally, the second message may further include at least one of the following parameters: the priority of the network slice supported by TA2 and the priority of the network slice supported by TA3. In this way, the first base station can determine the network slice information supported by TA2 and TA3 through the second message.

表4Table 4

在上述示例二中，以TA2为例，该TA2支持网络切片#25和网路切片#28，其中，网络切片#25的优先级为第一等级，网路切片#28的优先级是第二等级，这里的第一等级是高于第二等级的优先级，以此类推。可选的，本申请各网络切片的优先级的等级设定不做限定。In the second example above, take TA2 as an example. The TA2 supports network slice #25 and network slice #28. The priority of network slice #25 is the first level, and the priority of network slice #28 is the second. Level, where the first level is a priority higher than the second level, and so on. Optionally, the priority level setting of each network slice in this application is not limited.

示例三：如果接收到的第一消息包括第二基站的标识和第二基站包含的至少一个小区的标识，如结合表2的举例中的C24和C25，则核心网设备所发送的第二消息中可以包括的内容参见表4，第二消息包括TA的标识TA2和TA3，以及TA2支持的网络切片的标识和TA3支持的网络切片的标识。这样第一基站可以通过第二消息确定第二基站包含的小区C24和C25分别所属的TA支持的网络切片的信息。Example 3: If the received first message includes the identity of the second base station and the identity of at least one cell contained in the second base station, such as C24 and C25 in the example in Table 2, the second message sent by the core network device Refer to Table 4 for the content that can be included in the second message. The second message includes TA identifiers TA2 and TA3, as well as the identifiers of the network slices supported by TA2 and the identifiers of the network slices supported by TA3. In this way, the first base station can determine the network slice information supported by the TA to which the cells C24 and C25 included in the second base station belong respectively through the second message.

可选的，对于示例一、二、三中TA所支持的网络切片的信息还可以参考图1A中的描述，在此不再赘述。Optionally, for the network slice information supported by the TA in Examples 1, 2, and 3, reference may also be made to the description in FIG. 1A, which is not repeated here.

针对图2所示实施例可选的，第二消息还可以包括第二基站包含的小区的至少一个邻小区所属的至少一个TA所支持的网络切片的信息。进一步可选的，至少一个邻小区中的每个邻小区不包含于第二基站中，以及每个邻小区所属的TA是不同于至少一个小区所属的至少一个TA中的每个TA。其中一个邻小区所属的TA所支持的网络切片的信息包括该邻小区所属的TA的标识和该TA支持的网络切片的标识，可选的，还包括该TA支持的网络切片中各网络切片的优先级，有助于优化第一基站与第二基站之间的切换性能。Optionally for the embodiment shown in FIG. 2, the second message may also include information about the network slice supported by at least one TA to which at least one neighboring cell of the cell included in the second base station belongs. Further optionally, each of the at least one neighboring cell is not included in the second base station, and the TA to which each neighboring cell belongs is different from each of the at least one TA to which the at least one cell belongs. The information of the network slice supported by the TA to which one of the neighboring cells belongs includes the identity of the TA to which the neighboring cell belongs and the identity of the network slice supported by the TA, and optionally, the information of each network slice in the network slice supported by the TA. Priority helps to optimize the handover performance between the first base station and the second base station.

本申请实施例可以应用于第一基站和第二基站未建立通信接口的情况下，本申请对此不做限定。The embodiments of the present application may be applied to the case where a communication interface is not established between the first base station and the second base station, which is not limited in this application.

本申请的第一消息可以为切片信息获取请求，第二消息可以为切片信息响应消息，本申请对第一消息、第二消息的名称不做限定，对于实现如3实施例中第一消息的功能、第二消息的功能的其他消息均属于本申请的保护范围。The first message in this application may be a slice information acquisition request, and the second message may be a slice information response message. This application does not limit the names of the first message and the second message. The function and other messages of the function of the second message belong to the protection scope of this application.

在图2所示实施例中，第一基站可以通过与核心网设备交互，获取到第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息，有助于优化第一基站与第二基站之间的切换性能。In the embodiment shown in FIG. 2, the first base station can obtain the network slice information supported by at least one TA to which at least one cell belongs to the second base station by interacting with the core network equipment, which helps to optimize the first base station. Handover performance with the second base station.

请参见图3，为本申请提供的一种通信方法的流程示意图。请参见图3，该通信方法涉及的设备有：第一基站、核心网设备、第二基站。其中，第一基站和第二基站分别与核心网设备之间存在通信接口，这样第一基站和第二基站可以分别与核心网设备进行通信。图3所示实施例可以应用于第一基站与第二基站之间没有通信接口的场景，第一基站通过核心网设备向第二基站请求获取第二基站所支持的网络切片的信息。图3所示的方法包括步骤301至步骤304。Please refer to FIG. 3, which is a schematic flowchart of a communication method provided by this application. Referring to Figure 3, the devices involved in the communication method include: a first base station, a core network device, and a second base station. Wherein, the first base station and the second base station respectively have communication interfaces with the core network equipment, so that the first base station and the second base station can respectively communicate with the core network equipment. The embodiment shown in FIG. 3 can be applied to a scenario where there is no communication interface between the first base station and the second base station, and the first base station requests the second base station through the core network device to obtain the information of the network slice supported by the second base station. The method shown in FIG. 3 includes step 301 to step 304.

301，第一基站向核心网设备发送第一消息。301. The first base station sends a first message to a core network device.

示例性地，该第一消息包括第二基站的标识。这一情况下，该第一消息用于获取第二基站包含的全部小区中各小区所支持的网络切片的信息。Exemplarily, the first message includes the identity of the second base station. In this case, the first message is used to obtain information about the network slices supported by each cell in all the cells included in the second base station.

示例性地，该第一消息包括第二基站的标识和至少一个小区的标识。这一情况下，该第一消息用于获取至少一个小区中各小区所支持的网络切片的信息。Exemplarily, the first message includes the identity of the second base station and the identity of at least one cell. In this case, the first message is used to obtain information about network slices supported by each cell in at least one cell.

示例性地，该第一消息包括第二基站的标识和第二基站包含的至少一个小区所属的至少一个TA的标识。这一情况下，该第一消息用于获取一个或者多个TA所支持的网络切片的信息，其中，一个或者多个TA是第二基站的TA集合的子集，第二基站的TA集合包括第二基站包含的全部小区分别所属的TA。Exemplarily, the first message includes the identity of the second base station and the identity of at least one TA to which at least one cell contained in the second base station belongs. In this case, the first message is used to obtain information about the network slices supported by one or more TAs, where the one or more TAs are a subset of the TA set of the second base station, and the TA set of the second base station includes TA to which all cells included in the second base station belong.

图3实施例中的第一消息还包括第一基站的标识。该第一消息包括的第一基站的标识和第二基站的标识，便于核心网设备根据第一基站的标识确定第一消息是第一基站发送的，且根据第二基站的标识向第二基站发送第三消息。The first message in the embodiment of FIG. 3 also includes the identity of the first base station. The first message includes the identity of the first base station and the identity of the second base station, so that the core network device can determine according to the identity of the first base station that the first message was sent by the first base station, and send it to the second base station according to the identity of the second base station. Send the third message.

302，核心网设备向第二基站发送第三消息。302. The core network device sends a third message to the second base station.

相应的，第二基站接收核心网设备发送的第三消息。Correspondingly, the second base station receives the third message sent by the core network device.

其中，该第三消息的作用与第一消息的作用相一致。具体是如果第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，则第三消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息。如果第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息，则第三消息用于请求获取第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。Among them, the role of the third message is consistent with that of the first message. Specifically, if the first message is used to request to obtain information about a network slice supported by at least one cell included in the second base station, the third message is used to request to obtain information about a network slice supported by at least one cell included in the second base station. If the first message is used to request to obtain the information of the network slice supported by the at least one TA of the at least one cell contained in the second base station, the third message is used to request to obtain the at least one TA of the at least one cell contained in the second base station. Information about the supported network slices.

该步骤中第三消息与第一消息包括的信息可以一致，可以参考步骤301中的描述，在此不再赘述。The information included in the third message and the first message in this step may be the same, and the description in step 301 may be referred to, which will not be repeated here.

303，第二基站向核心网设备发送第四消息。303. The second base station sends a fourth message to the core network device.

相应的，核心网设备接收第二基站发送的第四消息。Correspondingly, the core network device receives the fourth message sent by the second base station.

在第二基站接收到第三消息之后，第二基站获取所包含的至少一个小区中各小区分别所属的TA所支持的网络切片的信息，并向核心网设备发送第四消息。该第四消息包括第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。After the second base station receives the third message, the second base station obtains the network slice information supported by the TA to which each cell in the at least one cell belongs, and sends a fourth message to the core network device. The fourth message includes information of a network slice supported by at least one TA to which at least one cell belongs and included in the second base station.

接下来对步骤303中的第四消息进行示例性说明：Next, the fourth message in step 303 is exemplified:

示例一：在第二基站包含的全部小区均属于一个TA，则第二基站所发送的第四消息可以包括这一个TA所支持的网络切片的信息。可选的，第四消息还可以包括这一个TA的标识。Example 1: All cells included in the second base station belong to one TA, and the fourth message sent by the second base station may include information about network slices supported by this TA. Optionally, the fourth message may also include the identifier of this TA.

示例二：在第二基站包含的不同小区属于不同的TA的情况下，如果第三消息不包括TA的标识且不包括小区的标识，则第二基站所发送的第四消息可以包括第二基站的TA集合中每个TA的标识和每个TA所支持的网络切片的标识。第二基站的TA集合包括第二基站包含的全部小区中各小区分别所属的TA。Example 2: In the case where the different cells included in the second base station belong to different TAs, if the third message does not include the identification of the TA and does not include the identification of the cell, the fourth message sent by the second base station may include the second base station The identifier of each TA in the set of TAs and the identifier of the network slice supported by each TA. The TA set of the second base station includes the TA to which each cell in all the cells included in the second base station belongs.

示例三：在第二基站包含的不同小区属于不同的TA的情况下，若接收到的第三消息包括第二基站中至少一个TA的标识，则第二基站所发送的第四消息可以包括至少一个TA的标识以及每个TA所支持的网络切片的信息。这样可以实现通过核心网设备向第一基站发送第一基站所想要获取的TA所支持的网络切片的信息，更具针对性。Example 3: In the case where the different cells included in the second base station belong to different TAs, if the received third message includes the identity of at least one TA in the second base station, the fourth message sent by the second base station may include at least The identification of a TA and the information about the network slices supported by each TA. In this way, the core network device can send the network slice information supported by the TA that the first base station wants to obtain to the first base station, which is more targeted.

示例四：如果接收到的第三消息包括第二基站包含的至少一个小区的标识，则第二基站所发送的第四消息包括至少一个TA的标识以及每个TA所支持的网络切片的信息。这里的至少一个TA包括至少一个小区中各个小区所属的TA。这样可以实现通过核心网设备向第一基站发送第一基站所想要获取的小区所属的TA支持的网络切片的信息，更具针对性。Example 4: If the received third message includes the identity of at least one cell included in the second base station, the fourth message sent by the second base station includes the identity of at least one TA and information about the network slices supported by each TA. The at least one TA here includes the TA to which each cell in the at least one cell belongs. In this way, the core network device can send to the first base station the information of the network slice supported by the TA that the first base station wants to obtain, which is more targeted.

其中，示例一、二、三、四中TA所支持的网络切片的信息可以参考图1A中的描述，或者可以参考图2中的举例说明，在此不再赘述。For the information of the network slices supported by the TA in Examples 1, 2, 3, and 4, reference may be made to the description in FIG. 1A, or reference may be made to the example description in FIG. 2, which will not be repeated here.

在以上示例一、二、三、四中第三消息和第四消息均包括第一基站的标识和第二基站的标识。其中第四消息包括的第一基站的标识和第二基站的标识，便于核心网设备根据第二基站的标识确定第四消息是第二基站发送的，并根据第一基站的标识向第一基站发送第二消息。In the above examples one, two, three, and four, the third message and the fourth message all include the identity of the first base station and the identity of the second base station. The fourth message includes the identity of the first base station and the identity of the second base station, so that the core network device can determine according to the identity of the second base station that the fourth message was sent by the second base station, and send it to the first base station according to the identity of the first base station. Send the second message.

可选的，第四消息还可以包括第二基站包含的小区的至少一个邻小区所属的至少一个TA所支持的网络切片的信息。其中，至少一个邻小区所属的至少一个TA所支持的网络切片的信息具体可以参见图2实施例中第二消息中所包括的至少一个邻小区所属的至少一个TA所支持的网络切片的信息的详细描述，在此不再赘述。Optionally, the fourth message may also include information about a network slice supported by at least one TA to which at least one neighboring cell of the cell included in the second base station belongs. For the information about the network slices supported by the at least one TA to which at least one neighboring cell belongs, specifically, refer to the information about the network slices supported by the at least one TA to which the at least one neighbor cell belongs included in the second message in the embodiment of FIG. 2 The detailed description will not be repeated here.

304，核心网设备向第一基站发送第二消息。304. The core network device sends a second message to the first base station.

相应的，第一基站接收核心网设备发送的第二消息。Correspondingly, the first base station receives the second message sent by the core network device.

其中，第二消息包括第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。Wherein, the second message includes information of a network slice supported by at least one TA to which at least one cell belongs and included in the second base station.

在图3所示实施例的具体实现中，第二消息与第四消息包括的信息可以一致，可以参考步骤303中的描述，在此不再赘述。需要说明的是，第二消息与第四消息包括的至少一个小区所属的至少一个TA所支持的网络切片的信息等同于该至少一个小区所支持的网络切片的信息，这样在第一消息及第三消息用于请求第二基站包含的至少一个小区所支持的网络切片的信息的情况下，第二消息与第四消息也是包括第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。In the specific implementation of the embodiment shown in FIG. 3, the information included in the second message and the fourth message may be the same, and reference may be made to the description in step 303, which will not be repeated here. It should be noted that the information of the network slice supported by at least one TA to which at least one cell belongs is included in the second message and the fourth message, which is equivalent to the information of the network slice supported by the at least one cell. When the three messages are used to request information about the network slices supported by at least one cell included in the second base station, the second and fourth messages also include the network supported by at least one TA to which at least one cell included in the second base station belongs. Slice information.

可选的，在第四消息包括第二基站包含的小区的至少一个邻小区所属的至少一个TA所支持的网络切片的信息的情况下，第二消息也包括第二基站包含的小区的至少一个邻小区所属的至少一个TA所支持的网络切片的信息。Optionally, in the case that the fourth message includes information about a network slice supported by at least one TA to which at least one neighboring cell of the cell contained in the second base station belongs, the second message also includes at least one of the cells contained in the second base station. Information about network slices supported by at least one TA to which the neighboring cell belongs.

在图3所示实施例中，第一消息为第一上行无线接入网配置转移消息；第二消息为第一下行无线接入网配置转移消息；第三消息为第二下行无线接入网配置转移消息；第四消息为第二上行无线接入网配置转移消息。其中，上行无线接入网配置转移消息是指uplink RAN configuration transfer message；下行无线接入网配置转移消息是指downlink RAN configuration transfer message。图3所示实施例对第一消息、第二消息、第三消息、第四消息的消息名称不做限定。In the embodiment shown in FIG. 3, the first message is a first uplink radio access network configuration transfer message; the second message is a first downlink radio access network configuration transfer message; and the third message is a second downlink radio access message. Network configuration transfer message; the fourth message is a second uplink radio access network configuration transfer message. Among them, the uplink radio access network configuration transfer message refers to the uplink RAN configuration transfer message; the downlink radio access network configuration transfer message refers to the downlink RAN configuration transfer message. The embodiment shown in FIG. 3 does not limit the message names of the first message, the second message, the third message, and the fourth message.

在图3所示实施例中，在第一基站和第二基站之间没有通信接口的情况下，第一基站可以通过与核心网设备交互，获取到第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息，有助于在第一基站与第二基站没有连接的场景下优化第一基站与第二基站之间的切换性能。In the embodiment shown in FIG. 3, in the case that there is no communication interface between the first base station and the second base station, the first base station can obtain at least one cell belonging to at least one cell contained in the second base station by interacting with the core network equipment. The information of the network slice supported by one TA helps to optimize the handover performance between the first base station and the second base station in a scenario where the first base station and the second base station are not connected.

请参见图4，为本申请提供的一种通信方法的流程示意图。请参见图4，该通信方法涉及的设备有：第一基站、核心网设备、第二基站。其中，第一基站和第二基站分别与核心网设备之间存在通信接口，这样第一基站和第二基站可以分别与核心网设备进行通信。另外，图4的通信方法可以应用于第一基站与第二基站之间没有通信接口，且第一基站需要将终端设备的PDU会话切换到第二基站的场景中。图4所示的方法包括步骤401至步骤404。Please refer to FIG. 4, which is a schematic flowchart of a communication method provided by this application. Referring to Figure 4, the devices involved in the communication method include: a first base station, a core network device, and a second base station. Wherein, the first base station and the second base station respectively have communication interfaces with the core network equipment, so that the first base station and the second base station can respectively communicate with the core network equipment. In addition, the communication method in FIG. 4 can be applied to a scenario where there is no communication interface between the first base station and the second base station, and the first base station needs to switch the PDU session of the terminal device to the second base station. The method shown in FIG. 4 includes steps 401 to 404.

401，第一基站向核心网设备发送第一消息。401: The first base station sends a first message to a core network device.

该第一消息用于请求将终端设备中N个PDU会话从第一基站切换到第二基站中的目标小区，该第一消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识。N为正整数。例如，该第一消息为切换要求(handover required)消息。The first message is used to request to switch N PDU sessions in the terminal equipment from the first base station to the target cell in the second base station, and the first message includes the identity of each PDU session in the N PDU sessions and the identity of the target cell . N is a positive integer. For example, the first message is a handover required (handover required) message.

在一种可能的情况下，该第一消息还用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，网络切片的信息包括网络切片的标识；可选的，网络切片的信息还包括网络切片的优先级。In a possible situation, the first message is also used to request information about the network slice supported by at least one cell contained in the second base station, and the network slice information includes the identifier of the network slice; optionally, the network slice The information also includes the priority of the network slicing.

示例性地，该第一消息包括第二基站的标识。这一情况下，该第一消息用于获取第二基站包含的全部小区中各小区分别所属的TA所支持的网络切片的信息。Exemplarily, the first message includes the identity of the second base station. In this case, the first message is used to obtain information about the network slices supported by the TA to which each cell belongs in all the cells included in the second base station.

另一种可能的情况下，该第一消息还用于请求获取第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。该情况中网络切片的信息与示例可以参考图2实施例中对应情况下的描述，在此不再赘述。In another possible situation, the first message is also used to request to obtain the information of the network slice supported by at least one TA to which at least one cell belongs and included in the second base station. For the information and examples of the network slicing in this case, reference may be made to the description of the corresponding case in the embodiment in FIG. 2, which will not be repeated here.

该第一消息包括的第二基站的标识还有助于核心网设备确定该第一消息是请求将终端设备中N个PDU会话从第一基站切换到第二基站中。The identification of the second base station included in the first message also helps the core network device to determine that the first message is a request to switch N PDU sessions in the terminal device from the first base station to the second base station.

402，核心网设备向第二基站发送第五消息。402. The core network device sends a fifth message to the second base station.

相应的，第二基站接收核心网设备发送的第五消息。Correspondingly, the second base station receives the fifth message sent by the core network device.

其中，该第五消息的作用与第一消息的作用相一致。例如，该第五消息为切换请求(handover request)消息，第五消息用于请求将终端设备中N个PDU会话从第一基站切换到第二基站中的目标小区，该第五消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识。Among them, the role of the fifth message is consistent with the role of the first message. For example, the fifth message is a handover request (handover request) message, and the fifth message is used to request to switch N PDU sessions in the terminal device from the first base station to the target cell in the second base station, and the fifth message includes N The identity of each PDU session in the PDU session and the identity of the target cell.

另外，第五消息还有与第一消息相一致的作用，具体可以参见图3所示实施例中所介绍的“第三消息的作用与第一消息的作用相一致”的具体内容，在此不再赘述。In addition, the fifth message also has a function consistent with the first message. For details, please refer to the specific content of "the function of the third message is consistent with the function of the first message" introduced in the embodiment shown in FIG. 3. No longer.

该步骤中第五消息不包括第二基站的标识。第五消息包括的信息与第一消息中除第二基站的标识之外的信息可以一致，具体可以参考步骤401中的描述，在此不再赘述。The fifth message in this step does not include the identity of the second base station. The information included in the fifth message may be consistent with the information in the first message except the identity of the second base station. For details, reference may be made to the description in step 401, which is not repeated here.

403，第二基站向核心网设备发送第六消息。403: The second base station sends a sixth message to the core network device.

相应的，核心网设备接收第二基站发送的第六消息。Correspondingly, the core network device receives the sixth message sent by the second base station.

其中，该第六消息包括第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。Wherein, the sixth message includes information of a network slice supported by at least one TA to which at least one cell belongs and included in the second base station.

第六消息是根据第五消息所携带的标识来确定所包含的网络切片的信息的，具体可以参考图3所示实施例中步骤303中的示例一和示例三，其中第六消息相当于步骤303中的第四消息，第五消息相当于步骤303中的第三消息，在此不再赘述。以及，第六消息还可以包括以下示例二的情况。The sixth message is used to determine the network slice information contained in the fifth message according to the identifier carried in the fifth message. For details, please refer to Example 1 and Example 3 in step 303 in the embodiment shown in FIG. 3, where the sixth message corresponds to step The fourth message and the fifth message in 303 are equivalent to the third message in step 303, and will not be repeated here. And, the sixth message may also include the following example two.

示例二：在第二基站包含的不同小区属于不同的TA的情况下，如果第五消息不包括TA的标识且不包括除了目标小区之外的其他小区的标识，则第二基站所发送的第六消息可以包括第二基站的TA集合中每个TA的标识和每个TA所支持的网络切片的标识。第二基站的TA集合包括第二基站包含的全部小区中各小区分别所属的TA。Example 2: In the case where the different cells contained in the second base station belong to different TAs, if the fifth message does not include the identification of the TA and does not include the identification of other cells except the target cell, the second base station sends the first The six messages may include the identification of each TA in the TA set of the second base station and the identification of the network slice supported by each TA. The TA set of the second base station includes the TA to which each cell in all the cells included in the second base station belongs.

其中，本实施例中TA所支持的网络切片的信息可以参考图1A中的描述，或者可以参考图2中的举例说明，在此不再赘述。Among them, the network slice information supported by the TA in this embodiment can refer to the description in FIG. 1A, or refer to the example in FIG. 2, which will not be repeated here.

可选的，第六消息还可以包括第二基站包含的小区的至少一个邻小区所属的至少一个TA所支持的网络切片的信息。至少一个邻小区所属的至少一个TA所支持的网络切片的信息具体可以参见图2实施例中第二消息中所包括的至少一个邻小区所属的至少一个TA所支持的网络切片的信息的详细描述，在此不再赘述。Optionally, the sixth message may further include information about a network slice supported by at least one TA to which at least one neighboring cell of the cell included in the second base station belongs. For information about the network slices supported by the at least one TA to which at least one neighboring cell belongs, please refer to the detailed description of the information about the network slices supported by the at least one TA of the at least one neighboring cell included in the second message in the embodiment of FIG. 2 , I won’t repeat it here.

可选的，第六消息是针对第五消息的响应消息。例如，如果第二基站可以为所请求的全部或者部分PDU会话提供服务，则第六消息为切换请求确认(handover request acknowledge)消息；如果第二基站无法为所请求的任意一个PDU会话提供服务，则第六消息为切换失败(handover failure)消息。Optionally, the sixth message is a response message to the fifth message. For example, if the second base station can provide services for all or part of the requested PDU sessions, the sixth message is a handover request acknowledgement message; if the second base station cannot provide services for any of the requested PDU sessions, The sixth message is a handover failure message.

404，核心网设备向第一基站发送第二消息。404: The core network device sends a second message to the first base station.

其中，第二消息包括第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。具体实现中第二消息与第六消息包括的网络切片的信息一致，可以参考步骤403中的描述，在此不再赘述。需要说明的是，第二消息与第六消息包括的至少一个小区所属的至少一个TA所支持的网络切片的信息等同于该至少一个小区所支持的网络切片的信息，这样在第一消息及第五消息用于请求第二基站包含的至少一个小区所支持的网络切片的信息的情况下，第二消息与第六消息也是包括第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息。Wherein, the second message includes information of a network slice supported by at least one TA to which at least one cell belongs and included in the second base station. In the specific implementation, the network slice information included in the second message and the sixth message are consistent, and the description in step 403 may be referred to, which is not repeated here. It should be noted that the information of the network slice supported by at least one TA to which at least one cell belongs in the second message and the sixth message is equivalent to the information of the network slice supported by the at least one cell. The fifth message is used to request the information of the network slice supported by at least one cell contained in the second base station, the second message and the sixth message also include the network supported by at least one TA to which at least one cell contained in the second base station belongs Slice information.

可选的，在第六消息包括第二基站包含的小区的至少一个邻小区所属的至少一个TA所支持的网络切片的信息的情况下，第二消息也包括第二基站包含的小区的至少一个邻小区所属的至少一个TA所支持的网络切片的信息。Optionally, in the case that the sixth message includes information about a network slice supported by at least one TA to which at least one neighboring cell of the cell contained in the second base station belongs, the second message also includes at least one of the cells contained in the second base station. Information about network slices supported by at least one TA to which the neighboring cell belongs.

图4所示实施例中，如果第二基站可以为所请求的全部或者部分PDU会话提供服务，则第二消息为切换命令(handover command)消息；如果第二基站无法为所请求的任意一个PDU会话提供服务，则第二消息为切换准备失败(handover preparation failure)消息。图4所示实施例对第一消息、第二消息、第三消息、第四消息的消息名称不做限定。In the embodiment shown in FIG. 4, if the second base station can provide services for all or part of the requested PDU session, the second message is a handover command message; if the second base station cannot provide services for any of the requested PDUs The session provides service, and the second message is a handover preparation failure message. The embodiment shown in FIG. 4 does not limit the message names of the first message, the second message, the third message, and the fourth message.

在图4所示实施例中，在第一基站和第二基站之间没有通信接口的情况下，第一基站可以通过与核心网设备交互，获取到第二基站包含的至少一个小区所属的至少一个TA所支持的网络切片的信息，这样在第一基站需要将终端设备的PDU会话进行切换的情况下，可以结合第二基站包含的小区所属的TA所支持的网络切片的信息来选择目标小区，提高了切换成功的概率。In the embodiment shown in FIG. 4, in the case that there is no communication interface between the first base station and the second base station, the first base station can obtain at least one cell belonging to at least one cell contained in the second base station by interacting with the core network equipment. Information of a network slice supported by a TA, so that when the first base station needs to switch the PDU session of the terminal device, the target cell can be selected by combining the information of the network slice supported by the TA of the cell contained in the second base station , Improve the probability of handover success.

请参见图5，为本申请提供的一种通信方法的流程示意图。请参见图5，该通信方法涉及的设备有：第一基站和第二基站，其中，第一基站与第二基站可以直接进行通信。图5所示实施例应用于第一基站将其所支持的网络切片的信息通知给第二基站。图5所示的方法包括步骤501至步骤502。Please refer to FIG. 5, which is a schematic flowchart of a communication method provided by this application. Referring to FIG. 5, the devices involved in the communication method include: a first base station and a second base station, where the first base station and the second base station can directly communicate. The embodiment shown in FIG. 5 is applied to the first base station to notify the second base station of the information of the network slices it supports. The method shown in FIG. 5 includes step 501 to step 502.

501，第一基站生成第一消息。501: The first base station generates a first message.

502，第一基站向第二基站发送第一消息。502: The first base station sends a first message to the second base station.

相应的，第二基站接收第一基站发送的第一消息。Correspondingly, the second base station receives the first message sent by the first base station.

图5所示实施例可以应用于第一基站与第二基站建立通信接口的场景中，例如，第一消息为Xn建立请求(Xn setup request)消息或者可以为Xn建立响应(Xn setup response)消息。The embodiment shown in FIG. 5 can be applied to a scenario where the first base station and the second base station establish a communication interface. For example, the first message is an Xn setup request (Xn setup request) message or can be an Xn setup response (Xn setup response) message. .

或者，图5所示实施例可以应用于第一基站和第二基站已建立通信接口的场景中，例如，第一消息为下一代无线接入网节点配置更新(NG-RAN node configuration update)消息或者可以为下一代无线接入网节点配置更新确认(NG-RAN node configuration update acknowledge)消息。Alternatively, the embodiment shown in FIG. 5 can be applied to a scenario where the first base station and the second base station have established a communication interface. For example, the first message is a next-generation radio access network node configuration update (NG-RAN node configuration update) message Or, it may be a NG-RAN node configuration update acknowledgement message for the next generation radio access network node.

图5所示实施例对第一消息的消息名称不做限定。The embodiment shown in FIG. 5 does not limit the message name of the first message.

接下来对本申请中第一基站所发送的第一消息进行示例性说明：Next, the first message sent by the first base station in this application will be exemplified:

示例一：对于第一基站包含的全部小区均属于一个TA的情况，该第一基站发送的第一消息可以包括第一基站支持的至少一个第一网络切片的信息，第一网络切片的信息包括第一网络切片的标识和第一网络切片的优先级。可选的，该第一消息可以包括所属的这一个TA的标识。Example 1: For a case where all cells included in the first base station belong to one TA, the first message sent by the first base station may include information about at least one first network slice supported by the first base station, and the information about the first network slice includes The identifier of the first network slice and the priority of the first network slice. Optionally, the first message may include the identity of the TA to which it belongs.

示例二：对于第一基站包含的不同小区属于不同的TA的情况，该第一基站发送的第一消息可以包括第一基站包含的至少一个小区所属的至少一个TA的标识和TA支持的至少一个第二网络切片的信息，第二网络切片的信息包括第二网络切片的标识和第二网络切片的优先级。其中，至少一个TA包含于第一基站的TA集合，第一基站的TA集合包括第一基站包含的全部小区中各小区分别所属的TA。Example 2: For the case where different cells included in the first base station belong to different TAs, the first message sent by the first base station may include the identification of at least one TA to which at least one cell included in the first base station belongs and at least one supported by the TA The information of the second network slice, and the information of the second network slice includes the identifier of the second network slice and the priority of the second network slice. Wherein, at least one TA is included in the TA set of the first base station, and the TA set of the first base station includes the TA to which each cell of all the cells included in the first base station belongs.

可选的，第二基站也可以在向第一基站发送的第二消息中携带网络切片信息。第二消息所携带的网络切片的信息可以参考图5实施例中对第一消息的示例性说明，在此不再赘述。Optionally, the second base station may also carry network slice information in the second message sent to the first base station. For the network slice information carried in the second message, reference can be made to the exemplary description of the first message in the embodiment of FIG.

需要说明的是，第一消息与第二消息包括的至少一个小区所属的至少一个TA所支持的网络切片的信息等同于该至少一个小区所支持的网络切片的信息。It should be noted that the information of the network slice supported by the at least one TA to which at least one cell belongs is included in the first message and the second message is equivalent to the information of the network slice supported by the at least one cell.

在图5所示实施例中，在第一基站和第二基站之间有通信接口的情况下，第一基站可以向第二基站发送第一基站支持的网络切片和所支持的网络切片中各网络切片的优先级，有助于优化第一基站与第二基站之间的切换性能。In the embodiment shown in FIG. 5, when there is a communication interface between the first base station and the second base station, the first base station can send to the second base station the network slice supported by the first base station and each of the supported network slices. The priority of network slicing helps to optimize the handover performance between the first base station and the second base station.

请参见图6，为本申请提供的一种通信方法的流程示意图。请参见图6，该通信方法涉及的设备有：第一基站、核心网设备、第二基站。其中，第一基站和第二基站分别与核心网设备之间存在通信接口，这样第一基站和第二基站可以分别与核心网设备进行通信。图6所示实施例应用于第一基站将其所支持的网络切片的信息通过核心网设备通知给第二基站。图6所示的方法包括步骤601至步骤603。Please refer to FIG. 6, which is a schematic flowchart of a communication method provided by this application. Referring to FIG. 6, the devices involved in the communication method include: a first base station, a core network device, and a second base station. Wherein, the first base station and the second base station respectively have communication interfaces with the core network equipment, so that the first base station and the second base station can respectively communicate with the core network equipment. The embodiment shown in FIG. 6 is applied to the first base station to notify the second base station of the information of the network slice supported by it through the core network device. The method shown in FIG. 6 includes steps 601 to 603.

601，第一基站生成第一消息。601: The first base station generates a first message.

602，第一基站向核心网设备发送第一消息。602: The first base station sends a first message to the core network device.

对本申请中第一基站所发送的第一消息进行示例性说明：The first message sent by the first base station in this application is exemplified:

示例一：对于第一基站包含的全部小区均属于一个TA的情况，该第一基站发送的第一消息包括第一基站支持的至少一个第一网络切片的信息。其中，第一网络切片的信息包括第一网络切片的标识；可选的，第一网络切片的信息还包括第一网络切片的优先级。Example 1: For a case where all cells included in the first base station belong to one TA, the first message sent by the first base station includes information about at least one first network slice supported by the first base station. Wherein, the information of the first network slice includes the identifier of the first network slice; optionally, the information of the first network slice also includes the priority of the first network slice.

示例二：对于第一基站包含的不同小区属于不同的TA的情况，该第一基站发送的第一消息包括第一基站包含的至少一个小区中各小区分别所属的TA的标识和TA支持的至少一个第二网络切片的信息。其中，第二网络切片的信息包括第二网络切片的标识；可选的，第二网络切片的信息还包括第二网络切片的优先级。Example 2: For the case where different cells included in the first base station belong to different TAs, the first message sent by the first base station includes the identification of the TA to which each cell in the at least one cell included in the first base station belongs and at least the TA supported Information about a second network slice. Wherein, the information of the second network slice includes the identifier of the second network slice; optionally, the information of the second network slice further includes the priority of the second network slice.

另外，该第一消息还包括第一基站的标识和第二基站的标识。核心网设备可以根据第一基站的标识确定第一消息是第一基站发送的；且核心网设备可以根据第二基站的标识向第二基站发送第二消息。In addition, the first message also includes the identity of the first base station and the identity of the second base station. The core network device may determine according to the identity of the first base station that the first message is sent by the first base station; and the core network device may send the second message to the second base station according to the identity of the second base station.

603，核心网设备向第二基站发送第二消息。603. The core network device sends a second message to the second base station.

相应的，第二基站接收核心网设备发送的第二消息。Correspondingly, the second base station receives the second message sent by the core network device.

在图6所示实施例中，核心网设备用于提供转发功能，具体实现中第二消息与第一消息包括的网络切片的信息一致，可以参考步骤601中的描述，在此不再赘述。In the embodiment shown in FIG. 6, the core network device is used to provide a forwarding function. In a specific implementation, the second message and the network slice information included in the first message are consistent. The description in step 601 may be referred to, which is not repeated here.

另外，该第二消息还包括第一基站的标识和第二基站的标识，以使第二基站确定第二消息包含的网络切片的信息是第一基站的。In addition, the second message further includes the identity of the first base station and the identity of the second base station, so that the second base station determines that the network slice information contained in the second message belongs to the first base station.

在图6所示实施例中，第一消息为上行无线接入网配置转移消息；第二消息为下行无线接入网配置转移消息。其中，上行无线接入网配置转移消息是指uplink RAN configuration transfer message；下行无线接入网配置转移消息是指downlink RAN configuration transfer message。本申请对第一消息、第二消息的消息名称不做限定。In the embodiment shown in FIG. 6, the first message is an uplink radio access network configuration transfer message; the second message is a downlink radio access network configuration transfer message. Among them, the uplink radio access network configuration transfer message refers to the uplink RAN configuration transfer message; the downlink radio access network configuration transfer message refers to the downlink RAN configuration transfer message. This application does not limit the message names of the first message and the second message.

可选的，第二基站也可以向核心网设备发送第三消息，使得核心网设备向第一基站发送第四消息。第四消息所携带的网络切片的信息可以参考图6实施例中对第一消息的示例性说明，第三消息所携带的网络切片的信息可以参考图6实施例中对第二消息的示例性说明，在此不再赘述。Optionally, the second base station may also send the third message to the core network device, so that the core network device sends the fourth message to the first base station. For the network slice information carried in the fourth message, refer to the exemplary description of the first message in the embodiment of FIG. 6, and the network slice information carried in the third message may refer to the exemplary description of the second message in the embodiment of FIG. 6. Explanation, I won't repeat it here.

需要说明的是，第一消息、第二消息、第三消息、第四消息包括的至少一个小区所属的至少一个TA所支持的网络切片的信息等同于该至少一个小区所支持的网络切片的信息。It should be noted that the first message, the second message, the third message, and the fourth message include the information of the network slice supported by at least one TA to which at least one cell belongs is equivalent to the information of the network slice supported by the at least one cell .

在图6所示实施例中，在第一基站和第二基站之间没有通信接口的情况下，第一基站可以通过核心网设备向第二基站发送第一基站支持的网络切片，可选的还可以发送所支持的网络切片中各网络切片的优先级，有助于在第一基站与第二基站没有连接的场景下优化第一基站与第二基站之间的切换性能。In the embodiment shown in FIG. 6, when there is no communication interface between the first base station and the second base station, the first base station may send the network slice supported by the first base station to the second base station through the core network device, and optionally The priority of each network slice in the supported network slices can also be sent, which helps to optimize the handover performance between the first base station and the second base station in a scenario where the first base station and the second base station are not connected.

请参见图7，为本申请提供的一种通信方法的流程示意图。请参见图7，该通信方法涉及的设备有：源基站和目标基站。其中，源基站与目标基站可以直接进行通信，图7的通信方法应用于源基站需要将终端设备的PDU会话切换到目标基站的场景中。图7所示的方法包括步骤701至步骤702。Please refer to FIG. 7, which is a schematic flowchart of a communication method provided by this application. Referring to Figure 7, the equipment involved in this communication method includes: a source base station and a target base station. Among them, the source base station and the target base station can directly communicate, and the communication method in FIG. 7 is applied to a scenario where the source base station needs to switch the PDU session of the terminal device to the target base station. The method shown in FIG. 7 includes step 701 to step 702.

701，源基站向目标基站发送第一消息。701: The source base station sends a first message to the target base station.

相应的，目标基站接收源基站发送的第一消息。Correspondingly, the target base station receives the first message sent by the source base station.

其中，该第一消息还用于请求将终端设备中的N个PDU会话从源基站切换到目标基站中的目标小区，该第一消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识，N为正整数。例如，该第一消息为切换请求(handover request)消息。Wherein, the first message is also used to request that the N PDU sessions in the terminal device be switched from the source base station to the target cell in the target base station, and the first message includes the identifier of each PDU session in the N PDU sessions and the target cell The identifier of, N is a positive integer. For example, the first message is a handover request (handover request) message.

702，目标基站向源基站发送第二消息。702. The target base station sends a second message to the source base station.

相应的，源基站接收目标基站发送的第二消息。Correspondingly, the source base station receives the second message sent by the target base station.

其中，该第二消息是用于指示切换响应的，第二消息包括指示信息，指示信息用于指示终端设备中M个PDU会话切换失败的原因是由于在目标小区的资源不足的情况下，该M个PDU会话对应的网络切片在目标小区所属的TA中的优先级较低而导致的该网络切片没有可用资源。这里的M为小于或等于N的正整数，换句话说，M个PDU会话为N个PDU会话中的部分或者全部。Wherein, the second message is used to indicate a handover response, and the second message includes indication information. The indication information is used to indicate that the reason for the failure of the handover of M PDU sessions in the terminal device is due to insufficient resources in the target cell. The network slice corresponding to the M PDU sessions has a lower priority in the TA to which the target cell belongs, which results in that the network slice has no available resources. Here, M is a positive integer less than or equal to N. In other words, M PDU sessions are part or all of N PDU sessions.

可选的，如果目标基站确定可以为所请求的部分PDU会话提供服务，则第二消息为切换请求确认(handover request acknowledge)消息；如果目标基站无法为所请求的任意一个PDU会话提供服务，则第二消息为切换准备失败(handover preparation failure)消息。Optionally, if the target base station determines that it can provide services for part of the requested PDU sessions, the second message is a handover request acknowledgement message; if the target base station cannot provide services for any of the requested PDU sessions, then The second message is a handover preparation failure (handover preparation failure) message.

可能的实现方式中，指示信息可以包括M个PDU会话的标识和原因值(cause value)中的至少一个，该原因值用于指示在目标小区的资源不足的情况下，该PDU会话对应的网络切片在目标小区所属的TA中的优先级较低而导致该网络切片没有可用资源。In a possible implementation manner, the indication information may include at least one of the identifiers of M PDU sessions and a cause value, and the cause value is used to indicate the network corresponding to the PDU session when the target cell has insufficient resources. The priority of the slice in the TA to which the target cell belongs is low, resulting in that the network slice has no available resources.

接下来对指示信息包含的内容进行示例性说明：Next, give an exemplary description of the content contained in the instruction information:

示例一：如果目标基站无法为所请求的全部会话提供服务，且各个PDU会话切换失败的原因是由于在目标小区的资源不足的情况下，该各个PDU会话对应的网络切片在目标小区所属的TA中的优先级较低而导致该网络切片没有可用资源，则指示信息可以只包括原因值，以表示所请求的各个PUD会话被拒绝的原因。Example 1: If the target base station cannot provide services for all the sessions requested, and the failure of each PDU session switching is due to insufficient resources in the target cell, the network slice corresponding to each PDU session is in the TA to which the target cell belongs If the priority in is low and the network slice has no available resources, the indication information may only include the reason value to indicate the reason why each requested PUD session is rejected.

示例二：如果目标基站无法为所请求的部分会话提供服务，且这部分PDU会话中各个PDU会话切换失败的原因是由于在目标小区的资源不足的情况下，该各个PDU会话对应的网络切片在目标小区所属的TA中的优先级较低而导致该网络切片没有可用资源，则指示信息可以这部分PDU会话中各个PDU会话的标识和一个原因值；或者，指示信息可以这部分PDU会话中各个PDU会话的标识和与每个PDU会话对应的原因值。这样表示所请求的部分PDU会话被拒绝的原因。Example 2: If the target base station cannot provide services for the requested part of the session, and the reason for the failure of each PDU session switching in this part of the PDU session is due to insufficient resources in the target cell, the network slice corresponding to each PDU session is If the priority in the TA to which the target cell belongs is low and the network slice has no available resources, the indication information may be the identifier of each PDU session in this part of the PDU session and a cause value; or the indication information may be each part of the PDU session. The identifier of the PDU session and the reason value corresponding to each PDU session. This indicates the reason why the requested partial PDU session was rejected.

703，目标基站向控制设备发送第五消息。703: The target base station sends a fifth message to the control device.

相应的，控制设备接收目标基站发送的第五消息。Correspondingly, the control device receives the fifth message sent by the target base station.

步骤703为可选的。其中，第五消息包括目标小区的标识和指示信息。这样目标基站可以通知控制设备：在目标小区的资源不足的情况下，其目标小区由于待切换的PDU会话的网络切片的优先级较低影响了该PDU会话接入的情况。Step 703 is optional. Wherein, the fifth message includes the identification and indication information of the target cell. In this way, the target base station can notify the control device that when the resources of the target cell are insufficient, the lower priority of the network slice of the PDU session to be handed over in the target cell affects the access of the PDU session.

可选的，针对步骤702中的示例一，在指示信息中未携带各个PDU会话的标识的情况下，在第五消息中增加该各个PDU会话的标识，以使控制设备根据PDU会话的标识确定与其对应的网络切片。Optionally, for example one in step 702, if the indication information does not carry the identifier of each PDU session, add the identifier of each PDU session to the fifth message, so that the control device can determine according to the identifier of the PDU session The corresponding network slice.

704，控制设备向目标基站发送第六消息。704. The control device sends a sixth message to the target base station.

相应的，目标基站接收控制设备发送的第六消息。Correspondingly, the target base station receives the sixth message sent by the control device.

步骤704为可选的。其中，该第六消息包括为目标小区所属的TA重新配置的网络切片的信息，网络切片的信息包括目标小区所属的TA支持的网络切片的标识和所支持的网络切片中各网络切片的优先级中的至少一个。这样在目标基站在向控制设备反馈指示信息之后，表示目标小区所属的TA由于PDU会话对应的网络切片的优先级较低影响了PDU会话的接入，而控制设备可以对目标小区所属的TA支持的网络切片的标识和网络切片优先级中的至少一个进行调整，以满足PDU会话切换需求。Step 704 is optional. Wherein, the sixth message includes information about the network slice reconfigured for the TA to which the target cell belongs, and the information about the network slice includes the identifier of the network slice supported by the TA to which the target cell belongs and the priority of each network slice in the supported network slice. At least one of them. In this way, after the target base station feeds back the indication information to the control device, it indicates that the TA to which the target cell belongs is affected by the lower priority of the network slice corresponding to the PDU session, and the control device can support the TA to which the target cell belongs. At least one of the identifier of the network slice and the priority of the network slice is adjusted to meet the PDU session switching requirement.

可选的，在源基站接收到第二消息之后，源基站可以向控制设备发送第七消息，第七消息包括目标小区的标识和指示信息。这样通过源基站来通知控制设备由于网络切片的优先级较低影响了PDU会话的接入的情况。Optionally, after the source base station receives the second message, the source base station may send a seventh message to the control device, where the seventh message includes the identification and indication information of the target cell. In this way, the source base station is used to notify the control device that the access of the PDU session is affected by the low priority of the network slice.

进一步可选的，在源基站向控制设备发送第七消息之后，控制设备可以执行步骤704和步骤705中的至少一个：Further optionally, after the source base station sends the seventh message to the control device, the control device may perform at least one of step 704 and step 705:

705，控制设备向源基站发送第八消息。该第八消息包括为目标小区所属的TA重新配置的网络切片的信息，网络切片的信息包括目标小区所属的TA支持的网络切片的标识和所支持的网络切片中各网络切片的优先级中的至少一个。这样控制设备将为目标小区所属TA重新配置的网络切片的信息也可以通知给源基站，以便于源基站参考。705. The control device sends an eighth message to the source base station. The eighth message includes information about the network slice reconfigured for the TA to which the target cell belongs. The information about the network slice includes the identification of the network slice supported by the TA to which the target cell belongs and the priority of each network slice in the supported network slice. at least one. In this way, the control device can also notify the source base station of the information about the network slice reconfigured for the TA to which the target cell belongs, so that the source base station can refer to it.

在图7所示实施例中，在源基站和目标基站可以直接通信的情况下，如果源基站请求将终端设备的PDU会话切换至目标基站中的目标小区，则目标基站可以在用于指示切换响应的消息中包括指示信息，以指示在目标小区的资源不足的情况下，切换失败的PDU会话对应的网络切片在目标小区所属的TA中的优先级较低而导致该网络切片没有可用资源，这样在源基站需要将终端设备的PDU会话进行切换的情况下，源基站可以结合先前目标基站发送的指示信息来决定是否切换，提高了切换成功的概率。In the embodiment shown in Figure 7, when the source base station and the target base station can communicate directly, if the source base station requests to switch the PDU session of the terminal device to the target cell in the target base station, the target base station can be used to indicate the handover The response message includes indication information to indicate that when the resources of the target cell are insufficient, the priority of the network slice corresponding to the failed PDU session in the TA to which the target cell belongs is lower, and the network slice has no available resources. In this way, when the source base station needs to switch the PDU session of the terminal device, the source base station can determine whether to switch based on the instruction information sent by the previous target base station, which improves the probability of a successful switch.

请参见图8，为本申请提供的一种通信方法的流程示意图。请参见图8，该通信方法涉及的设备有：源基站、核心网设备和目标基站。其中，源基站和目标基站分别与核心网设备之间存在通信接口，这样源基站和目标基站可以分别与核心网设备进行通信。另外，图8的通信方法可以应用于源基站与目标基站之间没有通信接口，且源基站需要将终端设备的PDU会话切换到目标基站的场景中。图8所示的方法包括步骤801至步骤804。Please refer to FIG. 8, which is a schematic flowchart of a communication method provided by this application. Referring to Figure 8, the devices involved in the communication method include: a source base station, a core network device, and a target base station. Among them, there are communication interfaces between the source base station and the target base station and the core network equipment respectively, so that the source base station and the target base station can respectively communicate with the core network equipment. In addition, the communication method of FIG. 8 can be applied to a scenario where there is no communication interface between the source base station and the target base station, and the source base station needs to switch the PDU session of the terminal device to the target base station. The method shown in FIG. 8 includes step 801 to step 804.

801，源基站向核心网设备发送第一消息。801: The source base station sends a first message to a core network device.

相应的，核心网设备接收源基站发送的第一消息。Correspondingly, the core network device receives the first message sent by the source base station.

其中，该第一消息用于请求将终端设备中的N个PDU会话从源基站切换到目标基站中的目标小区，第一消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识，N为正整数。例如，该第一消息为切换要求(handover required)消息。Wherein, the first message is used to request to switch N PDU sessions in the terminal equipment from the source base station to the target cell in the target base station, and the first message includes the identity of each PDU session in the N PDU sessions and the identity of the target cell , N is a positive integer. For example, the first message is a handover required (handover required) message.

该第一消息还包括目标基站的标识，以使核心网设备确定该第一消息是用于请求将终端设备的N个PDU会话从源基站切换到目标基站中。The first message also includes the identifier of the target base station, so that the core network device determines that the first message is used to request to switch the N PDU sessions of the terminal device from the source base station to the target base station.

802，核心网设备向目标基站发送第三消息。802. The core network device sends a third message to the target base station.

相应的，目标基站接收核心网设备发送的第三消息。Correspondingly, the target base station receives the third message sent by the core network device.

其中，该第三消息用于请求将终端设备的N个PDU会话从源基站切换到目标基站中的目标小区，该第三消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识。例如，该第三消息为切换请求(handover request)消息。Wherein, the third message is used to request to switch N PDU sessions of the terminal device from the source base station to the target cell in the target base station, and the third message includes the identity of each PDU session in the N PDU sessions and the identity of the target cell . For example, the third message is a handover request (handover request) message.

803，目标基站向核心网设备发送的第四消息。803: The fourth message sent by the target base station to the core network device.

相应的，核心网设备接收目标基站发送的第四消息。Correspondingly, the core network device receives the fourth message sent by the target base station.

具体实现中，在目标基站接收到第三消息之后，目标基站确定第四消息，该第四消息用于指示切换响应的消息。第四消息包括指示信息，指示信息用于指示终端设备中M个PDU会话切换失败的原因是由于在目标小区的资源不足的情况下，该PDU会话对应的网络切片在目标小区所属的TA中的优先级较低而导致的该网络切片没有可用资源。这里的M为小于或等于N的正整数，换句话说，M个PDU会话为N个PDU会话中的部分或者全部。In specific implementation, after the target base station receives the third message, the target base station determines a fourth message, and the fourth message is used to indicate a message for a handover response. The fourth message includes indication information. The indication information is used to indicate that the M PDU session switching failure in the terminal device is due to insufficient resources in the target cell. The network slice corresponding to the PDU session is in the TA to which the target cell belongs. The network slice has no available resources due to the low priority. Here, M is a positive integer less than or equal to N. In other words, M PDU sessions are part or all of N PDU sessions.

可选的，如果目标基站确定可以为所请求的部分PDU会话提供服务，则第四消息为切换请求确认(handover request acknowledge)消息；如果目标基站无法为所请求的任意一个PDU会话提供服务，则第四消息为切换失败(handover failure)消息。Optionally, if the target base station determines that it can provide services for some of the requested PDU sessions, the fourth message is a handover request acknowledgement message; if the target base station cannot provide services for any of the requested PDU sessions, then The fourth message is a handover failure message.

可能的实现方式中，指示信息可以包括M个PDU会话的标识和原因值(cause value)，该原因值用于指示在目标小区的资源不足的情况下，该PDU会话对应的网络切片在目标小区所属的TA中的优先级较低而导致该网络切片没有可用资源。In a possible implementation manner, the indication information may include the identities and cause values of M PDU sessions, and the cause value is used to indicate that the network slice corresponding to the PDU session is in the target cell when the resources of the target cell are insufficient. The priority in the TA to which it belongs is low, resulting in no available resources for the network slice.

804，核心网设备向源基站发送第二消息。804: The core network device sends a second message to the source base station.

相应的，源基站接收核心网设备发送的第二消息。Correspondingly, the source base station receives the second message sent by the core network device.

其中，第二消息包括指示信息。Wherein, the second message includes indication information.

图8所示实施例可以应用于源基站与目标基站之间没有通信接口，且源基站需要将终端设备的PDU会话切换到目标基站的场景中，本申请对此不做限定。The embodiment shown in FIG. 8 can be applied to a scenario where there is no communication interface between the source base station and the target base station, and the source base station needs to switch the PDU session of the terminal device to the target base station, which is not limited in this application.

图8所示实施例中，当目标基站可以为所请求的全部或者部分PDU会话提供服务时，第二消息为切换命令(handover command)消息；当目标基站无法为所请求的任意一个PDU会话提供服务时，第二消息为切换准备失败(handover preparation failure)消息。In the embodiment shown in Figure 8, when the target base station can provide services for all or part of the requested PDU session, the second message is a handover command message; when the target base station cannot provide services for any of the requested PDU sessions When serving, the second message is a handover preparation failure (handover preparation failure) message.

805，目标基站向控制设备发送第五消息。805: The target base station sends a fifth message to the control device.

步骤805为可选的。Step 805 is optional.

806，控制设备向目标基站发送第六消息。806. The control device sends a sixth message to the target base station.

步骤806为可选的。Step 806 is optional.

可选的，在源基站接收到第二消息之后，源基站可以向控制设备发送第七消息，第七消息包括目标小区的标识和指示信息。这样通过源基站来通知控制设备由于网络切片的优先级为低优先级的情况影响了PDU会话的接入的情况。Optionally, after the source base station receives the second message, the source base station may send a seventh message to the control device, where the seventh message includes the identification and indication information of the target cell. In this way, the source base station is used to notify the control device that the access of the PDU session is affected by the fact that the priority of the network slice is low priority.

其中，步骤805至步骤806可以参考图7所示实施例中的步骤703和步骤704，在此不再赘述。For steps 805 to 806, reference may be made to steps 703 and 704 in the embodiment shown in FIG. 7, which will not be repeated here.

在图8所示实施例中，在源基站与目标基站之间没有通信接口的情况下，如果源基站请求将终端设备的PDU会话切换之目标基站中的目标小区，则目标基站可以在用于指示切换响应的消息中包括指示信息，通过核心网设备向源基站指示在目标小区的资源不足的情况下，切换失败的PDU会话对应的网络切片在目标小区所属的TA中的优先级较低而导致该网络切片没有可用资源，这样在源基站需要将终端设备的PDU会话进行切换的情况下，源基站可以结合先前由核心网设备转发的指示信息来决定是否切换，提高了切换成功的概率。In the embodiment shown in FIG. 8, in the case that there is no communication interface between the source base station and the target base station, if the source base station requests to switch the PDU session of the terminal device to the target cell in the target base station, the target base station can be used for The message indicating the handover response includes indication information. The core network device indicates to the source base station that in the case of insufficient resources in the target cell, the priority of the network slice corresponding to the PDU session for which the handover fails is lower in the TA to which the target cell belongs. As a result, the network slice has no available resources. In this way, when the source base station needs to switch the PDU session of the terminal device, the source base station can determine whether to switch based on the previous indication information forwarded by the core network device, which improves the probability of a successful switch.

上文主要从设备的角度对本申请实施例提供的方案进行了介绍。可以理解的是，基站、核心网设备、控制设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和软件模块中的至少一个。结合本申请中所公开的实施例描述的各示例的步骤，本申请实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的设备来实现所描述的功能，但是这种实现不应认为超出本申请实施例的技术方案的范围。The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of equipment. It can be understood that, in order to implement the aforementioned functions, the base station, core network equipment, and control equipment include at least one of a hardware structure and a software module corresponding to each function. With reference to the steps of the examples described in the embodiments disclosed in the present application, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different devices for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present application.

本申请实施例可以根据上述设备示例对基站、核心网设备、控制设备进行功能模块或功能单元的划分，例如，可以对应各个功能划分各个功能模块或功能单元，也可以将两个或两个以上的功能集成在一个处理模块或处理单元中。上述集成的模块或单元既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块或单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。The embodiments of the present application can divide the base station, core network equipment, and control equipment into functional modules or functional units based on the above device examples. For example, each functional module or functional unit can be divided corresponding to each function, or two or more The functions are integrated in a processing module or processing unit. The above-mentioned integrated modules or units can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules or units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

请参见图9，图9是本申请实施例提供的一种基站的结构示意图。该基站900用于实现图2至图8的方法实施例。如图9所示，该基站900包括发送模块901和接收模块902。Please refer to FIG. 9, which is a schematic structural diagram of a base station according to an embodiment of the present application. The base station 900 is used to implement the method embodiments in FIGS. 2 to 8. As shown in FIG. 9, the base station 900 includes a sending module 901 and a receiving module 902.

在一种可能的实现方式中，该基站900为第一基站，包括：In a possible implementation manner, the base station 900 is the first base station, and includes:

发送模块901，用于向核心网设备发送第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识；可选的，所述网络切片的信息还包括所述网络切片的优先级；The sending module 901 is configured to send a first message to a core network device, where the first message is used to request information about network slices supported by at least one cell included in the second base station, or the first message is used to request Acquire information about the network slices supported by the at least one tracking area to which at least one cell belongs, included in the second base station, where the network slice information includes the identifier of the network slice; optionally, the network slice information further includes all The priority of the network slicing;

接收模块902，用于接收所述核心网设备发送的第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The receiving module 902 is configured to receive a second message sent by the core network device, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

可以理解的，该基站900用于实现图2、图3、图4实施例中第一基站所执行的步骤。关于图9的基站900包括的功能块的具体实现方式及相应的有益效果，可参考前述图2、图3、图4实施例的具体介绍，这里不赘述。It is understandable that the base station 900 is used to implement the steps performed by the first base station in the embodiments of FIG. 2, FIG. 3, and FIG. 4. For the specific implementation manners and corresponding beneficial effects of the functional blocks included in the base station 900 in FIG. 9, reference may be made to the specific introduction of the foregoing embodiments in FIG. 2, FIG. 3, and FIG. 4, which will not be repeated here.

在另一种可能的实现方式中，该基站900为第二基站，包括：In another possible implementation manner, the base station 900 is a second base station, and includes:

接收模块902，用于接收核心网设备发送的第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识；可选的，所述网络切片的信息还包括所述网络切片的优先级；The receiving module 902 is configured to receive a first message sent by a core network device, where the first message is used to request information about network slices supported by at least one cell included in the second base station, or the first message is used to Request to obtain the information of the network slice supported by the at least one tracking area to which at least one cell belongs included in the second base station, where the information of the network slice includes the identifier of the network slice; optionally, the information of the network slice further includes The priority of the network slice;

发送模块901，用于向所述核心网设备发送第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The sending module 901 is configured to send a second message to the core network device, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

可以理解的，该基站900用于实现图3、图4实施例中第二基站所执行的步骤。关于图9的基站900包括的功能块的具体实现方式及相应的有益效果，可参考前述图3、图4实施例的具体介绍，这里不赘述。It can be understood that the base station 900 is used to implement the steps performed by the second base station in the embodiments of FIG. 3 and FIG. 4. For the specific implementation manners and corresponding beneficial effects of the functional blocks included in the base station 900 in FIG. 9, reference may be made to the specific introduction of the foregoing embodiments in FIG. 3 and FIG. 4, which will not be repeated here.

在另一种可能的实现方式中，该基站900为第一基站，这一情况下，该基站900还包括生成模块903(图9中未画出)。包括：In another possible implementation manner, the base station 900 is the first base station. In this case, the base station 900 further includes a generating module 903 (not shown in FIG. 9). include:

生成模块903，用于生成第一消息；A generating module 903, configured to generate the first message;

发送模块901，用于发送第一消息；The sending module 901 is used to send the first message;

可以理解的，该基站900用于实现图5、图6实施例中第一基站所执行的步骤。关于图9的基站900包括的功能块的具体实现方式及相应的有益效果，可参考前述图5、图6实施例的具体介绍，这里不赘述。It can be understood that the base station 900 is used to implement the steps performed by the first base station in the embodiments of FIG. 5 and FIG. 6. For the specific implementation manners and corresponding beneficial effects of the functional blocks included in the base station 900 in FIG. 9, reference may be made to the specific introduction of the foregoing embodiments in FIG. 5 and FIG. 6, which will not be repeated here.

接收模块902，用于接收第一消息，所述第一消息包括第一基站支持的至少一个第一网络切片的信息，所述第一网络切片的信息包括所述第一网络切片的标识；可选的，所述第一网络切片的信息还包括所述第一网络切片的优先级；或者，所述第一消息包括所述第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和所述跟踪区域支持的至少一个第二网络切片的信息，所述第二网络切片的信息包括所述第二网络切片的标识；可选的，所述第二网络切片的信息还包括所述第二网络切片的优先级。The receiving module 902 is configured to receive a first message, where the first message includes information about at least one first network slice supported by the first base station, and the information about the first network slice includes an identifier of the first network slice; Optionally, the information of the first network slice further includes the priority of the first network slice; or, the first message includes the identification of at least one tracking area to which at least one cell included in the first base station belongs and The information of at least one second network slice supported by the tracking area, the information of the second network slice includes the identifier of the second network slice; optionally, the information of the second network slice further includes the first network slice 2. Priority of network slicing.

可以理解的，该基站900用于实现图5、图6实施例中第二基站所执行的步骤。关于图9的基站900包括的功能块的具体实现方式及相应的有益效果，可参考前述图5、图6实施例的具体介绍，这里不赘述。It can be understood that the base station 900 is used to implement the steps performed by the second base station in the embodiments of FIG. 5 and FIG. 6. For the specific implementation manners and corresponding beneficial effects of the functional blocks included in the base station 900 in FIG. 9, reference may be made to the specific introduction of the foregoing embodiments in FIG. 5 and FIG. 6, which will not be repeated here.

在另一种可能的实现方式中，该基站900为源基站包括：In another possible implementation manner, the base station 900 being the source base station includes:

发送模块901，用于发送第一消息，所述第一消息用于请求将终端设备的N个PDU会话从所述源基站切换到目标基站中的目标小区，所述第一消息包括所述N个PDU会话中每个PDU会话的标识和所述目标小区的标识；The sending module 901 is configured to send a first message, the first message is used to request that N PDU sessions of the terminal device be handed over from the source base station to the target cell in the target base station, and the first message includes the N The identifier of each PDU session in each PDU session and the identifier of the target cell;

接收模块902，用于接收用于指示切换响应的第二消息，所述第二消息包括指示信息，所述指示信息用于指示在目标小区的资源不足的情况下，所述终端设备中M个PDU会话切换失败的原因是由于所述M个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的所述网络切片没有可用资源，N为正整数，M为小于或者等于N的正整数。The receiving module 902 is configured to receive a second message used to indicate a handover response, where the second message includes indication information, and the indication information is used to indicate that when the resources of the target cell are insufficient, the M terminals in the terminal device The reason for the failure of PDU session switching is that the network slices corresponding to the M PDU sessions have low priority in the tracking area to which the target cell belongs, and the network slices have no available resources. N is a positive integer, and M is less than Or a positive integer equal to N.

可以理解的，该基站900用于实现图7、图8实施例中源基站所执行的步骤。关于图9的基站900包括的功能块的具体实现方式及相应的有益效果，可参考前述图7、图8实施例的具体介绍，这里不赘述。It can be understood that the base station 900 is used to implement the steps performed by the source base station in the embodiments of FIG. 7 and FIG. 8. For the specific implementation manners and corresponding beneficial effects of the functional blocks included in the base station 900 of FIG. 9, reference may be made to the specific introduction of the foregoing embodiments of FIG. 7 and FIG. 8, which will not be repeated here.

在另一种可能的实现方式中，该基站900为目标基站，包括：In another possible implementation manner, the base station 900 is a target base station, including:

接收模块902，用于接收第一消息，所述第一消息用于请求将终端设备中的N个PDU会话从源基站切换到所述目标基站中的目标小区，所述第一消息包括所述N个PDU会话中每个PDU会话的标识、所述每个PDU会话对应的网络切片的标识和所述目标小区的标识；The receiving module 902 is configured to receive a first message, the first message is used to request to switch N PDU sessions in the terminal device from the source base station to the target cell in the target base station, and the first message includes the The identifier of each PDU session in the N PDU sessions, the identifier of the network slice corresponding to each PDU session, and the identifier of the target cell;

发送模块901，用于发送用于指示切换响应的第二消息，所述第二消息包括指示信息，所述指示信息用于指示在目标小区的资源不足的情况下，所述终端设备中M个PDU会话切换失败的原因是由于所述M个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的所述网络切片没有可用资源，N为正整数，M为小于或者等于N的正整数。The sending module 901 is configured to send a second message for indicating a handover response, where the second message includes indication information, and the indication information is used to indicate that when the resources of the target cell are insufficient, M of the terminal devices The reason for the failure of PDU session switching is that the network slices corresponding to the M PDU sessions have low priority in the tracking area to which the target cell belongs, and the network slices have no available resources. N is a positive integer, and M is less than Or a positive integer equal to N.

可以理解的，该基站900用于实现图7、图8实施例中目标基站所执行的步骤。关于图9的基站900包括的功能块的具体实现方式及相应的有益效果，可参考前述图7、图8的实施例的具体介绍，这里不赘述。It can be understood that the base station 900 is used to implement the steps performed by the target base station in the embodiments of FIG. 7 and FIG. 8. For the specific implementation manners and corresponding beneficial effects of the functional blocks included in the base station 900 of FIG. 9, reference may be made to the specific introduction of the foregoing embodiments of FIG. 7 and FIG. 8, which will not be repeated here.

在本申请的实施例中，接收模块902可以是接收器或者接收电路，发送模块901可以是发送器或者发送电路。接收模块902和发送模块901还可以是该基站的通信接口。In the embodiment of the present application, the receiving module 902 may be a receiver or a receiving circuit, and the sending module 901 may be a transmitter or a sending circuit. The receiving module 902 and the sending module 901 may also be communication interfaces of the base station.

上述图9所示实施例中的基站900可以以图10所示的基站1000实现。如图10所示，为本申请实施例提供了另一种基站的结构示意图，图10所示的基站1000包括：处理器1001和收发器1002。The base station 900 in the embodiment shown in FIG. 9 may be implemented by the base station 1000 shown in FIG. 10. As shown in FIG. 10, a schematic structural diagram of another base station is provided for an embodiment of this application. The base station 1000 shown in FIG. 10 includes a processor 1001 and a transceiver 1002.

所述收发器1002用于支持基站1000与图2至图8实施例中涉及的其他基站、核心网设备之间的信息传输。The transceiver 1002 is used to support information transmission between the base station 1000 and other base stations and core network devices involved in the embodiments of FIGS. 2 to 8.

处理器1001用于对基站的动作进行控制管理。The processor 1001 is used to control and manage the actions of the base station.

例如在图2至图8所示实施例中，所述收发器1402用于实现图2至图8所示实施例中接收的消息以及发送消息。处理器1401用于支持所述收发器802执行上述步骤，以及处理器1401用于实现图5或图6实施例中生成第一消息的步骤。For example, in the embodiments shown in FIGS. 2 to 8, the transceiver 1402 is used to implement messages received and sent in the embodiments shown in FIGS. 2 to 8. The processor 1401 is configured to support the transceiver 802 to perform the foregoing steps, and the processor 1401 is configured to implement the step of generating the first message in the embodiment of FIG. 5 or FIG. 6.

处理器1001和收发器1002通信连接，例如通过总线1004相连。总线1004可以是PCI总线或EISA总线等。所述总线1004可以分为地址总线、数据总线和控制总线等。为便于表示，图10中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。The processor 1001 and the transceiver 1002 are communicatively connected, for example, connected via a bus 1004. The bus 1004 may be a PCI bus or an EISA bus. The bus 1004 can be divided into an address bus, a data bus, and a control bus. For ease of representation, only one thick line is used to represent in FIG. 10, but it does not mean that there is only one bus or one type of bus.

所述基站1000还可以包括存储器1003。存储器1003用于存储供基站1000执行的程序代码和数据，处理器1001用于执行存储器1003中存储的应用程序代码，以实现图2至图8所示任一实施例提供的基站的动作。The base station 1000 may further include a memory 1003. The memory 1003 is used to store program codes and data for the base station 1000 to execute, and the processor 1001 is used to execute the application code stored in the memory 1003 to implement the actions of the base station provided by any of the embodiments shown in FIGS. 2 to 8.

需要说明的是，实际应用中基站可以包括一个或者多个处理器，该基站1000的结构并不构成对本申请实施例的限定。It should be noted that in actual applications, the base station may include one or more processors, and the structure of the base station 1000 does not constitute a limitation to the embodiment of the present application.

处理器1001可以是中央处理器(central processing unit，CPU)，通用处理器，数字信号处理器(digital signal processor，DSP)，专用集成电路(application-specific integrated circuit，ASIC)，现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。The processor 1001 may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array Field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application. The processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.

收发器1004可以是通信接口或收发电路等，其中，该收发器是统称，在具体实现中，该收发器可以包括多个接口。The transceiver 1004 may be a communication interface or a transceiver circuit, etc., where the transceiver is a general term. In a specific implementation, the transceiver may include multiple interfaces.

存储器1003可以包括易失性存储器(volatile memory)，例如随机存取存储器(random access memory，RAM)；存储器1003也可以包括非易失性存储器(non-volatile memory)，例如只读存储器(read-only memory，ROM)，快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器1003还可以包括上述种类的存储器的组合。The memory 1003 may include a volatile memory (volatile memory), such as random access memory (random access memory, RAM); the memory 1003 may also include a non-volatile memory (non-volatile memory), such as a read-only memory (read-only memory). Only memory (ROM), flash memory (flash memory), hard disk drive (HDD), or solid-state drive (SSD); the memory 1003 may also include a combination of the foregoing types of memories.

在本申请实施例中还提供了一种可读存储介质，可以用于存储图2至图8所示实施例中所述基站所用的计算机软件指令，使图2至图8所示实施例的任一可能的实现方式被实现。该存储介质包括但不限于快闪存储器、硬盘、固态硬盘。In the embodiment of the present application, a readable storage medium is also provided, which can be used to store the computer software instructions used by the base station in the embodiment shown in FIG. 2 to FIG. Any possible implementation is implemented. The storage medium includes but is not limited to flash memory, hard disk, and solid state hard disk.

在本申请实施例中还提供了一种计算机程序产品，该计算机产品被计算设备运行时，可以执行上述实施例中为基站所设计的通信方法。An embodiment of the present application also provides a computer program product. When the computer product is run by a computing device, it can execute the communication method designed for the base station in the foregoing embodiment.

请参见图11，图11是本申请实施例提供的一种核心网设备的结构示意图。该核心网设备1100用于实现图2、图3、图4、图6、图8的方法实施例。如图11所示，该核心网设备1100包括接收模块1101和发送模块1102。Please refer to FIG. 11, which is a schematic structural diagram of a core network device according to an embodiment of the present application. The core network device 1100 is used to implement the method embodiments in FIG. 2, FIG. 3, FIG. 4, FIG. 6, and FIG. 8. As shown in FIG. 11, the core network device 1100 includes a receiving module 1101 and a sending module 1102.

在一种可能的实现方式中，该核心网设备1100包括：In a possible implementation manner, the core network device 1100 includes:

接收模块1101，用于接收来自第一基站的第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识；可选的，所述网络切片的信息还包括所述网络切片的优先级；The receiving module 1101 is configured to receive a first message from a first base station, where the first message is used to request information about network slices supported by at least one cell included in the second base station, or the first message is used to Request to obtain the information of the network slice supported by the at least one tracking area to which at least one cell belongs included in the second base station, where the information of the network slice includes the identifier of the network slice; optionally, the information of the network slice further includes The priority of the network slice;

发送模块1102，用于向所述第一基站发送第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The sending module 1102 is configured to send a second message to the first base station, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.

可以理解的，该核心网设备1100用于实现图2、图3、图4实施例中核心网设备所执行的步骤。关于图11的核心网设备1100包括的功能块的具体实现方式及相应的有益效果，可参考前述图2、图3、图4的实施例的具体介绍，这里不赘述。It is understandable that the core network device 1100 is used to implement the steps performed by the core network device in the embodiments of FIG. 2, FIG. 3, and FIG. 4. Regarding the specific implementation manners and corresponding beneficial effects of the functional blocks included in the core network device 1100 in FIG. 11, reference may be made to the specific introduction of the foregoing embodiments in FIG. 2, FIG. 3, and FIG. 4, which will not be repeated here.

接收模块1101，用于接收第一基站发送的第一消息；所述第一消息包括所述第一基站支持的至少一个第一网络切片的信息，所述第一网络切片的信息包括所述第一网络切片的标识；可选的，所述第一网络切片的信息还包括所述第一网络切片的优先级；或者，所述第一消息包括所述第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和所述跟踪区域支持的至少一个第二网络切片的信息，所述第二网络切片的信息包括所述第二网络切片的标识；可选的，所述第二网络切片的信息还包括所述第二网络切片的优先级；The receiving module 1101 is configured to receive a first message sent by a first base station; the first message includes information about at least one first network slice supported by the first base station, and the information about the first network slice includes the first network slice. An identifier of a network slice; optionally, the information of the first network slice further includes the priority of the first network slice; or, the first message includes the information to which at least one cell contained in the first base station belongs An identifier of at least one tracking area and information about at least one second network slice supported by the tracking area, where the information about the second network slice includes the identifier of the second network slice; optionally, the second network slice The information also includes the priority of the second network slice;

发送模块1102，用于向第二基站发送第二消息；所述第二消息包括所述第一基站支持的至少一个第一网络切片的信息；或者，所述第二消息包括所述第一基站包含的至少一个小区所属的至少一个跟踪区域的标识和所述跟踪区域支持的至少一个第二网络切片的信息。The sending module 1102 is configured to send a second message to a second base station; the second message includes information about at least one first network slice supported by the first base station; or, the second message includes the first base station The included identification of at least one tracking area to which at least one cell belongs and information of at least one second network slice supported by the tracking area.

其中，所述第一消息与所述第二消息包括所述第一基站的标识和所述第二基站的标识。Wherein, the first message and the second message include the identity of the first base station and the identity of the second base station.

可以理解的，该核心网设备1100用于实现图6实施例中核心网设备所执行的步骤。关于图11的核心网设备1100包括的功能块的具体实现方式及相应的有益效果，可参考前述图6的实施例的具体介绍，这里不赘述。It can be understood that the core network device 1100 is used to implement the steps performed by the core network device in the embodiment of FIG. 6. Regarding the specific implementation manners and corresponding beneficial effects of the functional blocks included in the core network device 1100 of FIG. 11, reference may be made to the specific introduction of the foregoing embodiment of FIG. 6, which will not be repeated here.

在另一种可能的实现方式中，该核心网设备1100包括：In another possible implementation manner, the core network device 1100 includes:

接收模块1101，用于接收源基站发送的第一消息；该第一消息用于请求将终端设备中的N个PDU会话从所述源基站切换到目标基站中的目标小区，所述第一消息包括N个PDU会话中每个PDU会话的标识和所述目标小区的标识，N为正整数。该第一消息还包括目标基站的标识。The receiving module 1101 is configured to receive a first message sent by a source base station; the first message is used to request to switch N PDU sessions in a terminal device from the source base station to a target cell in the target base station, the first message Including the identifier of each PDU session in N PDU sessions and the identifier of the target cell, where N is a positive integer. The first message also includes the identification of the target base station.

发送模块1102，用于向目标基站发送第三消息；该第三消息用于请求将终端设备的N个PDU会话从源基站切换到目标基站中的目标小区，该第三消息包括N个PDU会话中每个PDU会话的标识和目标小区的标识。The sending module 1102 is configured to send a third message to the target base station; the third message is used to request that the N PDU sessions of the terminal device be switched from the source base station to the target cell in the target base station, and the third message includes N PDU sessions The identity of each PDU session in the PDU and the identity of the target cell.

接收模块1101，还用于接收目标基站发送的第四消息；该第四消息用于指示切换响应的消息。第四消息包括指示信息，所述指示信息用于指示在目标小区的资源不足的情况下，所述终端设备中M个PDU会话切换失败的原因是由于该PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的该网络切片没有可用资源，N为正整数，M为小于或者等于N的正整数。The receiving module 1101 is further configured to receive a fourth message sent by the target base station; the fourth message is used to indicate a handover response message. The fourth message includes indication information, the indication information is used to indicate that in the case of insufficient resources in the target cell, the reason for the failure of the switching of M PDU sessions in the terminal device is because the network slice corresponding to the PDU session belongs to the target cell The network slice has no available resources due to the low priority in the tracking area of, N is a positive integer, and M is a positive integer less than or equal to N.

发送模块1102，还用于向源基站发送第二消息。第二消息包括指示信息。The sending module 1102 is also used to send a second message to the source base station. The second message includes indication information.

可以理解的，该核心网设备1100用于实现图8实施例中核心网设备所执行的步骤。关于图11的核心网设备1100包括的功能块的具体实现方式及相应的有益效果，可参考前述图8的实施例的具体介绍，这里不赘述。It can be understood that the core network device 1100 is used to implement the steps performed by the core network device in the embodiment of FIG. 8. Regarding the specific implementation manners and corresponding beneficial effects of the functional blocks included in the core network device 1100 of FIG. 11, reference may be made to the specific introduction of the foregoing embodiment of FIG. 8, which will not be repeated here.

在本申请的实施例中，接收模块1101可以是接收器或者接收电路，发送模块1102可以是发送器或者发送电路。接收模块1101和发送模块1102还可以是该核心网设备的通信接口。In the embodiment of the present application, the receiving module 1101 may be a receiver or a receiving circuit, and the sending module 1102 may be a transmitter or a sending circuit. The receiving module 1101 and the sending module 1102 may also be communication interfaces of the core network device.

上述图11所示的核心网设备1100可以以图12所示的核心网设备1200实现。如图12所示，为本申请实施例提供了另一种核心网设备的结构示意图，图12所示的核心网设备1200包括：处理器1201和收发器1202。The core network device 1100 shown in FIG. 11 may be implemented by the core network device 1200 shown in FIG. 12. As shown in FIG. 12, a schematic structural diagram of another core network device is provided for an embodiment of this application. The core network device 1200 shown in FIG. 12 includes a processor 1201 and a transceiver 1202.

所述收发器1202用于支持核心网设备1200与上述实施例中涉及的基站之间的信息传输，处理器1201用于对核心网设备1200的动作进行控制管理。The transceiver 1202 is used to support information transmission between the core network device 1200 and the base station involved in the foregoing embodiment, and the processor 1201 is used to control and manage the actions of the core network device 1200.

例如在图2、图3、图4、图6、图8所示实施例中，所述收发器1402用于实现图2、图3、图4、图6、图8所示实施例中接收的消息以及发送消息。处理器1401用于支持所述收发器802执行上述步骤。For example, in the embodiments shown in FIG. 2, FIG. 3, FIG. 4, FIG. 6, and FIG. 8, the transceiver 1402 is used to implement receiving in the embodiments shown in FIG. 2, FIG. 3, FIG. 4, FIG. 6, and FIG. Messages and send messages. The processor 1401 is configured to support the transceiver 802 to perform the foregoing steps.

处理器1201和收发器1202通信连接，例如通过总线相连。所述核心网设备1200还可以包括存储器1203。存储器1203用于存储供核心网设备1200执行的程序代码和数据，处理器1201用于执行存储器1203中存储的应用程序代码，以实现图2至图6所示任一实施例提供的核心网设备的动作。The processor 1201 and the transceiver 1202 are communicatively connected, for example, connected via a bus. The core network device 1200 may further include a memory 1203. The memory 1203 is used to store program codes and data for the core network device 1200 to execute, and the processor 1201 is used to execute the application program codes stored in the memory 1203 to implement the core network device provided by any of the embodiments shown in FIGS. 2 to 6 Actions.

需要说明的是，实际应用中核心网设备可以包括一个或者多个处理器，该核心网设备1200的结构并不构成对本申请实施例的限定。It should be noted that in actual applications, the core network device may include one or more processors, and the structure of the core network device 1200 does not constitute a limitation to the embodiment of the present application.

处理器1201可以是CPU，NP，硬件芯片或者其任意组合。上述硬件芯片可以是ASIC，PLD或其组合。上述PLD可以是CPLD，FPGA，GAL或其任意组合。The processor 1201 may be a CPU, an NP, a hardware chip, or any combination thereof. The above hardware chip can be ASIC, PLD or a combination thereof. The above PLD can be CPLD, FPGA, GAL or any combination thereof.

存储器1203可以包括易失性存储器，例如RAM；存储器1203也可以包括非易失性存储器，例如ROM，快闪存储器，硬盘或固态硬盘；存储器1203还可以包括上述种类的存储器的组合。The memory 1203 may include a volatile memory, such as RAM; the memory 1203 may also include a non-volatile memory, such as ROM, flash memory, a hard disk, or a solid state hard disk; the memory 1203 may also include a combination of the foregoing types of memories.

在本申请实施例中还提供了一种可读存储介质，可以用于存储图2、图3、图4、图6、图8所示实施例中所述核心网设备所用的计算机软件指令，使图2、图3、图4、图6、图8所示实施例的任一可能的实现方式被实现。该存储介质包括但不限于快闪存储器、硬盘、固态硬盘。An embodiment of the present application also provides a readable storage medium, which can be used to store computer software instructions used by the core network device in the embodiments shown in FIG. 2, FIG. 3, FIG. 4, FIG. 6, and FIG. Any possible implementation manner of the embodiments shown in FIG. 2, FIG. 3, FIG. 4, FIG. 6, and FIG. 8 are realized. The storage medium includes but is not limited to flash memory, hard disk, and solid state hard disk.

在本申请实施例中还提供了一种计算机程序产品，该计算机产品被计算设备运行时，可以执行上述实施例中为核心网设备所设计的通信方法。In the embodiments of the present application, a computer program product is also provided. When the computer product is run by a computing device, it can execute the communication method designed for the core network device in the foregoing embodiment.

请参见图13，图13是本申请实施例提供的一种控制设备的结构示意图。该控制设备1300用于实现图7、图8的方法实施例。如图13所示，该控制设备1300包括接收模块1301和发送模块1302。Please refer to FIG. 13, which is a schematic structural diagram of a control device provided by an embodiment of the present application. The control device 1300 is used to implement the method embodiments in FIGS. 7 and 8. As shown in FIG. 13, the control device 1300 includes a receiving module 1301 and a sending module 1302.

接收模块1301，用于接收第一基站发送的第一消息，所述第一消息包括所述第二基站包含的目标小区的标识和指示信息，所述指示信息用于指示在目标小区的资源不足的情况下，终端设备中M个PDU会话切换失败的原因是由于所述M个PDU会话对应的网络切片在目标小区所属的跟踪区域中的优先级较低而导致的所述网络切片没有可用资源；M为正整数。The receiving module 1301 is configured to receive a first message sent by a first base station, where the first message includes the identification and indication information of the target cell contained in the second base station, and the indication information is used to indicate insufficient resources in the target cell In the case of the failure of the switching of M PDU sessions in the terminal device, the reason for the failure of the switching of the M PDU sessions is that the network slices corresponding to the M PDU sessions have a low priority in the tracking area to which the target cell belongs. ; M is a positive integer.

发送模块1302，用于向所述第二基站发送第二消息，所述第二消息包括为所述目标小区所属的跟踪区域重新配置的网络切片的信息，所述网络切片的信息包括所述目标小区所属的跟踪区域支持的网络切片的标识和所支持的网络切片中各网络切片的优先级。The sending module 1302 is configured to send a second message to the second base station, where the second message includes information about a network slice reconfigured for the tracking area to which the target cell belongs, and the network slice information includes the target The identification of the network slice supported by the tracking area to which the cell belongs and the priority of each network slice in the supported network slices.

可以理解的，该控制设备1300用于实现图7、图8实施例中控制设备所执行的步骤。关于图13的控制设备包括的功能块的具体实现方式及相应的有益效果，可参考前述图7、图8的实施例的具体介绍，这里不赘述。It can be understood that the control device 1300 is used to implement the steps executed by the control device in the embodiments of FIG. 7 and FIG. 8. Regarding the specific implementation manners and corresponding beneficial effects of the functional blocks included in the control device in FIG. 13, reference may be made to the specific introduction of the embodiments in FIG. 7 and FIG. 8, which will not be repeated here.

在本申请的实施例中，接收模块1301可以是接收器或者接收电路，发送模块1302可以是发送器或者发送电路。接收模块1301和发送模块1302还可以是该控制设备的通信接口。In the embodiment of the present application, the receiving module 1301 may be a receiver or a receiving circuit, and the sending module 1302 may be a transmitter or a sending circuit. The receiving module 1301 and the sending module 1302 may also be communication interfaces of the control device.

上述图13所示的控制设备1300可以以图14所示的控制设备1400实现。如图14所示，为本申请实施例提供了另一种控制设备的结构示意图，图14所示的控制设备1400包括：处理器1401和收发器1402。The control device 1300 shown in FIG. 13 may be implemented by the control device 1400 shown in FIG. 14. As shown in FIG. 14, an embodiment of the present application provides a schematic structural diagram of another control device. The control device 1400 shown in FIG. 14 includes a processor 1401 and a transceiver 1402.

所述收发器1402用于支持控制设备1400与上述实施例中涉及的基站之间的信息传输，处理器1401用于对控制设备1400的动作进行控制管理。The transceiver 1402 is used to support information transmission between the control device 1400 and the base station involved in the foregoing embodiment, and the processor 1401 is used to control and manage the actions of the control device 1400.

例如在图7、图8所示实施例中，所述收发器1402用于实现图3所示实施例中接收的消息以及发送消息。处理器1401用于支持所述收发器802执行上述步骤。For example, in the embodiment shown in FIG. 7 and FIG. 8, the transceiver 1402 is used to implement the message received and the message sent in the embodiment shown in FIG. The processor 1401 is configured to support the transceiver 802 to perform the foregoing steps.

处理器1401和收发器1402通信连接，例如通过总线相连。所述控制设备1400还可以包括存储器1403。存储器1403用于存储供控制设备1400执行的程序代码和数据，处理器1401用于执行存储器1403中存储的应用程序代码，以实现图7、图8所示任一实施例提供的控制设备的动作。The processor 1401 and the transceiver 1402 are communicatively connected, for example, connected via a bus. The control device 1400 may further include a memory 1403. The memory 1403 is used to store program codes and data for the control device 1400 to execute, and the processor 1401 is used to execute the application program codes stored in the memory 1403 to implement the actions of the control device provided by any of the embodiments shown in FIG. 7 and FIG. 8 .

需要说明的是，实际应用中控制设备可以包括一个或者多个处理器，该控制设备1400的结构并不构成对本申请实施例的限定。It should be noted that in actual applications, the control device may include one or more processors, and the structure of the control device 1400 does not constitute a limitation to the embodiments of the present application.

处理器1401可以是CPU，NP，硬件芯片或者其任意组合。上述硬件芯片可以是ASIC，PLD或其组合。上述PLD可以是CPLD，FPGA，GAL或其任意组合。The processor 1401 may be a CPU, an NP, a hardware chip, or any combination thereof. The above hardware chip can be ASIC, PLD or a combination thereof. The above PLD can be CPLD, FPGA, GAL or any combination thereof.

存储器1403可以包括易失性存储器，例如RAM；存储器1403也可以包括非易失性存储器，例如ROM，快闪存储器，硬盘或固态硬盘；存储器1403还可以包括上述种类的存储器的组合。The memory 1403 may include a volatile memory, such as RAM; the memory 1403 may also include a non-volatile memory, such as ROM, flash memory, a hard disk, or a solid state disk; the memory 1403 may also include a combination of the foregoing types of memories.

在本申请实施例中还提供了一种可读存储介质，可以用于存储图7、图8所示实施例中所述控制设备所用的计算机软件指令，使图7、图8所示实施例的任一可能的实现方式被实现。该存储介质包括但不限于快闪存储器、硬盘、固态硬盘。In the embodiment of the present application, a readable storage medium is also provided, which can be used to store the computer software instructions used by the control device in the embodiment shown in FIG. 7 and FIG. 8, so that the embodiment shown in FIG. Any possible implementation of is implemented. The storage medium includes but is not limited to flash memory, hard disk, and solid state hard disk.

在本申请实施例中还提供了一种计算机程序产品，该计算机产品被计算设备运行时，可以执行上述实施例中为控制设备所设计的通信方法。An embodiment of the present application also provides a computer program product. When the computer product is run by a computing device, it can execute the communication method designed for the control device in the foregoing embodiment.

本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元，而是可选的还包括没有列出的步骤或单元，或可选的还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。The terms "first", "second", "third" and "fourth" in the description and claims of the application and the drawings are used to distinguish different objects, rather than describing a specific order . In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that contains a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units not listed, or optionally includes Other steps or units inherent to these processes, methods, products or equipment.

本申请中，“A和/或B”是指下述情况之一：A，B，A和B。“……中至少一个”是指所列出的各项或者任意数量的所列出的各项的任意组合方式，例如，“A、B和C中至少一个”是指下述情况之一：A，B，C，A和B，B和C，A和C，A、B和C这七种情况中的任一种。In this application, "A and/or B" refers to one of the following situations: A, B, A and B. "At least one of..." refers to the listed items or any combination of any number of listed items. For example, "at least one of A, B, and C" refers to one of the following situations: A, B, C, A and B, B and C, A and C, A, B and C in any of the seven cases.

本领域普通技术人员可以理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。Those of ordinary skill in the art can understand that, in various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The order of execution of each process should be determined by its function and internal logic. The implementation process of the embodiments of this application should constitute any limitation.

在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing relevant hardware through a computer program. The program can be stored in a computer readable storage medium. During execution, it may include the procedures of the above-mentioned method embodiments.

Claims

一种通信方法，其特征在于，包括：A communication method, characterized in that it comprises:

第一基站向核心网设备发送第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识和所述网络切片的优先级；The first base station sends a first message to the core network device, where the first message is used to request to obtain information about the network slices supported by at least one cell contained in the second base station, or the first message is used to request to obtain the second The base station includes information about the network slices supported by at least one tracking area to which at least one cell belongs, where the information about the network slice includes the identifier of the network slice and the priority of the network slice;

所述第一基站接收所述核心网设备发送的第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The first base station receives a second message sent by the core network device, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.
根据权利要求1所述的方法，其特征在于，所述第二消息中的所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息是由所述核心网设备确定的；The method according to claim 1, wherein the information of the network slices supported by the at least one tracking area to which at least one cell belongs contained in the second base station in the second message is determined by the core network device definite;

所述第一消息包括所述第二基站的标识；或者，所述第一消息包括第二基站的标识和所述至少一个跟踪区域的标识；或者，所述第一消息包括第二基站的标识和所述至少一个小区的标识。The first message includes the identity of the second base station; or, the first message includes the identity of the second base station and the identity of the at least one tracking area; or, the first message includes the identity of the second base station And the identity of the at least one cell.
根据权利要求1所述的方法，其特征在于，The method according to claim 1, wherein:

所述第一基站向核心网设备发送第一消息，包括：The sending of the first message by the first base station to the core network device includes:

所述第一基站向核心网设备发送第一消息，以使所述核心网设备向所述第二基站发送第三消息，所述第三消息用于请求获取所述第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第三消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述第一消息和所述第三消息包括所述第一基站的标识和所述第二基站的标识；The first base station sends a first message to the core network device, so that the core network device sends a third message to the second base station, and the third message is used to request to obtain at least one message contained in the second base station Information about the network slices supported by the cell, or the third message is used to request to obtain information about the network slices supported by the at least one tracking area to which at least one cell belongs included in the second base station, the first message and the The third message includes the identity of the first base station and the identity of the second base station;

所述第一基站接收所述核心网设备发送的第二消息，包括：The first base station receiving the second message sent by the core network device includes:

所述第一基站接收所述核心网设备发送的第二消息，所述第二消息是所述核心网设备在接收到所述第二基站发送的第四消息之后发送的，所述第四消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述第二消息和所述第四消息包括所述第一基站的标识和所述第二基站的标识。The first base station receives a second message sent by the core network device, where the second message is sent by the core network device after receiving the fourth message sent by the second base station, and the fourth message Including the information of the network slices supported by at least one tracking area to which at least one cell belongs included in the second base station, and the second message and the fourth message include the identity of the first base station and the second base station Logo.
根据权利要求3所述的方法，其特征在于，The method according to claim 3, wherein:

所述第一消息为第一上行无线接入网配置转移消息；所述第四消息为第二上行无线接入网配置转移消息；所述第二消息为第一下行无线接入网配置转移消息；所述第三消息为第二下行无线接入网配置转移消息。The first message is a first uplink radio access network configuration transfer message; the fourth message is a second uplink radio access network configuration transfer message; the second message is a first downlink radio access network configuration transfer message Message; the third message is a second downlink radio access network configuration transfer message.
根据权利要求1所述的方法，其特征在于，The method according to claim 1, wherein:

所述第一基站向核心网设备发送第一消息，包括：The sending of the first message by the first base station to the core network device includes:

所述第一基站向核心网设备发送第一消息，以使所述核心网设备向所述第二基站发送第五消息，所述第一消息与所述第五消息分别用于请求将终端设备中至少一个PDU会话从所述第一基站切换到第二基站中的目标小区，其中，所述第一消息与所述第五消息包括所述至少一个PDU会话中每个PDU会话的标识和所述目标小区的标识；The first base station sends a first message to the core network device, so that the core network device sends a fifth message to the second base station, where the first message and the fifth message are respectively used to request that the terminal device At least one PDU session in the first base station is switched from the first base station to the target cell in the second base station, where the first message and the fifth message include the identification and the all the PDU sessions in the at least one PDU session. The identity of the target cell;

所述第一基站接收所述核心网设备发送的第二消息，包括：The first base station receiving the second message sent by the core network device includes:

所述第一基站接收所述核心网设备发送的第二消息，所述第二消息是所述核心网设备在接收到所述第二基站发送的第六消息之后发送的，所述第六消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息；The first base station receives a second message sent by the core network device, where the second message is sent by the core network device after receiving the sixth message sent by the second base station, and the sixth message Including information of a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station;

其中，所述第一消息还包括所述第二基站的标识；或者，所述第一消息还包括第二基站的标识和所述至少一个跟踪区域的标识。Wherein, the first message further includes the identity of the second base station; or, the first message further includes the identity of the second base station and the identity of the at least one tracking area.
根据权利要求5所述的方法，其特征在于，所述第一消息为切换要求消息，所述第五消息为切换请求消息；The method according to claim 5, wherein the first message is a handover request message, and the fifth message is a handover request message;

所述第二消息为切换准备失败消息，所述第六消息为切换失败消息；或者，The second message is a handover preparation failure message, and the sixth message is a handover failure message; or,

所述第二消息为切换命令消息，所述第六消息为切换请求确认消息。The second message is a handover command message, and the sixth message is a handover request confirmation message.
一种通信方法，其特征在于，包括：A communication method, characterized in that it comprises:

核心网设备接收来自第一基站的第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识和所述网络切片的优先级；The core network device receives a first message from the first base station, where the first message is used to request to obtain information about the network slices supported by at least one cell included in the second base station, or the first message is used to request to obtain the 2. Information about network slices supported by at least one tracking area to which at least one cell belongs, included in the base station, where the network slice information includes the identifier of the network slice and the priority of the network slice;

所述核心网设备向所述第一基站发送第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The core network device sends a second message to the first base station, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.
根据权利要求7所述的方法，其特征在于，所述第二消息中的所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息是由所述核心网设备确定的；The method according to claim 7, wherein the information of the network slice supported by the at least one tracking area to which at least one cell belongs contained in the second base station in the second message is obtained by the core network device definite;

所述第一消息包括所述第二基站的标识；或者，所述第一消息包括第二基站的标识和所述至少一个跟踪区域的标识；或者，所述第一消息包括第二基站的标识和所述至少一个小区的标识。The first message includes the identity of the second base station; or, the first message includes the identity of the second base station and the identity of the at least one tracking area; or, the first message includes the identity of the second base station And the identity of the at least one cell.
根据权利要求7所述的方法，其特征在于，所述第一消息包括所述第一基站的标识和第二基站的标识；The method according to claim 7, wherein the first message includes the identity of the first base station and the identity of the second base station;

所述核心网设备向所述第一基站发送第二消息之前，还包括：Before the core network device sends the second message to the first base station, the method further includes:

所述核心网设备向所述第二基站发送第三消息，所述第三消息用于请求获取所述第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第三消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述第一消息和所述第三消息包括所述第一基站的标识和所述第二基站的标识；The core network device sends a third message to the second base station, where the third message is used to request information about network slices supported by at least one cell included in the second base station, or the third message It is used to request to obtain the information of the network slice supported by the at least one tracking area to which at least one cell belongs to the second base station. The first message and the third message include the identity of the first base station and the second The identity of the base station;

所述核心网设备接收所述第二基站发送的第四消息，所述第四消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述第二消息和所述第四消息包括所述第一基站的标识和所述第二基站的标识。The core network device receives a fourth message sent by the second base station, where the fourth message includes information about network slices supported by at least one tracking area to which at least one cell belongs and included in the second base station. The second message and the fourth message include the identity of the first base station and the identity of the second base station.
根据权利要求9所述的方法，其特征在于，The method according to claim 9, wherein:

所述第一消息为第一上行无线接入网配置转移消息；所述第四消息为第二上行无线接入网配置转移消息；所述第二消息为第一下行无线接入网配置转移消息；所述第三消息为第二下行无线接入网配置转移消息。The first message is a first uplink radio access network configuration transfer message; the fourth message is a second uplink radio access network configuration transfer message; the second message is a first downlink radio access network configuration transfer message Message; the third message is a second downlink radio access network configuration transfer message.
根据权利要求7所述的方法，其特征在于，所述核心网设备向所述第一基站发送第二消息之前，还包括：The method according to claim 7, wherein before the core network device sends the second message to the first base station, the method further comprises:

所述核心网设备向所述第二基站发送第五消息，所述第一消息与所述第五消息分别用于请求将终端设备中至少一个PDU会话从所述第一基站切换到第二基站中的目标小区，其中，所述第一消息与所述第五消息包括所述至少一个PDU会话中每个PDU会话的标识和所述目标小区的标识；The core network device sends a fifth message to the second base station, where the first message and the fifth message are respectively used to request to switch at least one PDU session in the terminal device from the first base station to the second base station The target cell in, wherein the first message and the fifth message include the identifier of each PDU session in the at least one PDU session and the identifier of the target cell;

所述核心网设备接收所述第二基站发送的第六消息，所述第六消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息；Receiving, by the core network device, a sixth message sent by the second base station, where the sixth message includes information about network slices supported by at least one tracking area to which at least one cell belongs and included in the second base station;

其中，所述第一消息还包括所述第二基站的标识；或者，所述第一消息还包括第二基站的标识和所述至少一个跟踪区域的标识。Wherein, the first message further includes the identity of the second base station; or, the first message further includes the identity of the second base station and the identity of the at least one tracking area.
根据权利要求11所述的方法，其特征在于，所述第一消息为切换要求消息，所述第五消息为切换请求消息；The method according to claim 11, wherein the first message is a handover request message, and the fifth message is a handover request message;

所述第二消息为切换准备失败消息，所述第六消息为切换失败消息；或者，The second message is a handover preparation failure message, and the sixth message is a handover failure message; or,

所述第二消息为切换命令消息，所述第六消息为切换请求确认消息。The second message is a handover command message, and the sixth message is a handover request confirmation message.
一种通信方法，其特征在于，包括：A communication method, characterized in that it comprises:

第二基站接收核心网设备发送的第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识和所述网络切片的优先级；The second base station receives the first message sent by the core network device, where the first message is used to request to obtain information about the network slices supported by at least one cell contained in the second base station, or the first message is used to request to obtain the first message 2. Information about network slices supported by at least one tracking area to which at least one cell belongs, included in the base station, where the network slice information includes the identifier of the network slice and the priority of the network slice;

所述第二基站向所述核心网设备发送第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The second base station sends a second message to the core network device, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.
根据权利要求13所述的方法，其特征在于，所述第一消息和第二消息包括所述第一基站的标识和所述第二基站的标识。The method according to claim 13, wherein the first message and the second message include the identity of the first base station and the identity of the second base station.
根据权利要求14所述的方法，其特征在于，The method of claim 14, wherein:

所述第一消息为下行无线接入网配置转移消息；所述第二消息为上行无线接入网配置转移消息。The first message is a downlink radio access network configuration transfer message; the second message is an uplink radio access network configuration transfer message.
根据权利要求13所述的方法，其特征在于，所述第一消息用于请求将终端设备中至少一个PDU会话从所述第一基站切换到第二基站中的目标小区，所述第一消息包括所述至少一个PDU会话中每个PDU会话的标识和所述目标小区的标识。The method according to claim 13, wherein the first message is used to request to switch at least one PDU session in the terminal device from the first base station to the target cell in the second base station, and the first message It includes the identifier of each PDU session in the at least one PDU session and the identifier of the target cell.
根据权利要求16所述的方法，其特征在于，所述第一消息为切换请求消息；The method according to claim 16, wherein the first message is a handover request message;

所述第二消息为切换失败消息或者切换请求确认消息。The second message is a handover failure message or a handover request confirmation message.
一种基站，其特征在于，所述基站为第一基站，包括：A base station, characterized in that the base station is a first base station, and includes:

发送模块，用于向核心网设备发送第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识和所述网络切片的优先级；The sending module is configured to send a first message to the core network device, where the first message is used to request to obtain the information of the network slice supported by at least one cell included in the second base station, or the first message is used to request to obtain The second base station includes information about network slices supported by at least one tracking area to which at least one cell belongs, where the information about the network slice includes the identifier of the network slice and the priority of the network slice;

接收模块，用于接收所述核心网设备发送的第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The receiving module is configured to receive a second message sent by the core network device, where the second message includes information of a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.
根据权利要求18所述的基站，其特征在于，所述第二消息中的所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息是由所述核心网设备确定的；The base station according to claim 18, wherein the information about the network slices supported by the at least one tracking area to which at least one cell belongs contained in the second base station in the second message is determined by the core network equipment definite;

所述第一消息包括所述第二基站的标识；或者，所述第一消息包括第二基站的标识和所述至少一个跟踪区域的标识；或者，所述第一消息包括第二基站的标识和所述至少一个小区的标识。The first message includes the identity of the second base station; or, the first message includes the identity of the second base station and the identity of the at least one tracking area; or, the first message includes the identity of the second base station And the identity of the at least one cell.
根据权利要求18所述的基站，其特征在于，The base station according to claim 18, wherein:

所述发送模块具体用于：向核心网设备发送第一消息，以使所述核心网设备向所述第二基站发送第三消息，所述第三消息用于请求获取所述第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第三消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述第一消息和所述第三消息包括所述第一基站的标识和所述第二基站的标识；The sending module is specifically configured to send a first message to a core network device, so that the core network device sends a third message to the second base station, and the third message is used to request that the second base station contains Or, the third message is used to request information about the network slices supported by at least one tracking area to which at least one cell belongs, and the first message And the third message includes the identity of the first base station and the identity of the second base station;

所述接收模块，具体用于：接收所述核心网设备发送的第二消息，所述第二消息是所述核心网设备在接收到所述第二基站发送的第四消息之后发送的，所述第四消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述第二消息和所述第四消息包括所述第一基站的标识和所述第二基站的标识。The receiving module is specifically configured to: receive a second message sent by the core network device, where the second message is sent by the core network device after receiving the fourth message sent by the second base station, so The fourth message includes information about the network slices supported by at least one tracking area to which at least one cell belongs, included in the second base station, and the second message and the fourth message include the identity of the first base station and the The identifier of the second base station.
根据权利要求20所述的基站，其特征在于，所述第一消息为第一上行无线接入网配置转移消息；所述第四消息为第二上行无线接入网配置转移消息；所述第二消息为第一下行无线接入网配置转移消息；所述第三消息为第二下行无线接入网配置转移消息。The base station according to claim 20, wherein the first message is a first uplink radio access network configuration transfer message; the fourth message is a second uplink radio access network configuration transfer message; the first message The second message is a first downlink radio access network configuration transfer message; the third message is a second downlink radio access network configuration transfer message.
根据权利要求18所述的基站，其特征在于，The base station according to claim 18, wherein:

所述发送模块具体用于：所述第一基站向核心网设备发送第一消息，以使所述核心网设备向所述第二基站发送第五消息，所述第一消息与所述第五消息分别用于请求将终端设备中至少一个PDU会话从所述第一基站切换到第二基站中的目标小区，其中，所述第一消息与所述第五消息包括所述至少一个PDU会话中每个PDU会话的标识和所述目标小区的标识；The sending module is specifically configured to: the first base station sends a first message to a core network device, so that the core network device sends a fifth message to the second base station, and the first message is identical to the fifth The messages are respectively used to request the handover of at least one PDU session in the terminal equipment from the first base station to the target cell in the second base station, wherein the first message and the fifth message include those in the at least one PDU session The identity of each PDU session and the identity of the target cell;

所述接收模块具体用于：所述第一基站接收所述核心网设备发送的第二消息，所述第二消息是所述核心网设备在接收到所述第二基站发送的第六消息之后发送的，所述第六消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息；The receiving module is specifically configured to: the first base station receives a second message sent by the core network device, where the second message is after the core network device receives the sixth message sent by the second base station Sent, the sixth message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station;

其中，所述第一消息还包括所述第二基站的标识；或者，所述第一消息还包括第二基站的标识和所述至少一个跟踪区域的标识。Wherein, the first message further includes the identity of the second base station; or, the first message further includes the identity of the second base station and the identity of the at least one tracking area.
根据权利要求22所述的基站，其特征在于，所述第一消息为切换要求消息，所述第五消息为切换请求消息；The base station according to claim 22, wherein the first message is a handover request message, and the fifth message is a handover request message;

所述第二消息为切换准备失败消息，所述第六消息为切换失败消息；或者，The second message is a handover preparation failure message, and the sixth message is a handover failure message; or,

所述第二消息为切换命令消息，所述第六消息为切换请求确认消息。The second message is a handover command message, and the sixth message is a handover request confirmation message.
一种核心网设备，其特征在于，包括：A core network device, characterized in that it comprises:

接收模块，用于接收来自第一基站的第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识和所述网络切片的优先级；The receiving module is configured to receive a first message from a first base station, where the first message is used to request information about network slices supported by at least one cell included in the second base station, or the first message is used to request Acquiring information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station, where the information about the network slice includes an identifier of the network slice and a priority of the network slice;

发送模块，用于向所述第一基站发送第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The sending module is configured to send a second message to the first base station, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.
根据权利要求24所述的核心网设备，其特征在于，所述第二消息中的所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息是由所述核心网设备确定的；The core network device according to claim 24, wherein the information of the network slice supported by the at least one tracking area to which at least one cell belongs contained in the second base station in the second message is determined by the core Determined by network equipment;

所述第一消息包括所述第二基站的标识；或者，所述第一消息包括第二基站的标识和所述至少一个跟踪区域的标识；或者，所述第一消息包括第二基站的标识和所述至少一个小区的标识。The first message includes the identity of the second base station; or, the first message includes the identity of the second base station and the identity of the at least one tracking area; or, the first message includes the identity of the second base station And the identity of the at least one cell.
根据权利要求24所述的核心网设备，其特征在于，所述第一消息包括所述第一基站的标识和第二基站的标识；The core network device according to claim 24, wherein the first message includes the identity of the first base station and the identity of the second base station;

所述发送模块，还用于向所述第二基站发送第三消息，所述第三消息用于请求获取所述第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第三消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述第一消息和所述第三消息包括所述第一基站的标识和所述第二基站的标识；The sending module is further configured to send a third message to the second base station, where the third message is used to request to obtain information about network slices supported by at least one cell included in the second base station, or The third message is used to request to obtain the information of the network slice supported by the at least one tracking area to which at least one cell contained in the second base station belongs. The first message and the third message include the identity of the first base station and the The identifier of the second base station;

所述接收模块，还用于接收所述第二基站发送的第四消息，所述第四消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述第二消息和所述第四消息包括所述第一基站的标识和所述第二基站的标识。The receiving module is further configured to receive a fourth message sent by the second base station, where the fourth message includes information of a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station, The second message and the fourth message include the identity of the first base station and the identity of the second base station.
根据权利要求26所述的核心网设备，其特征在于，The core network device according to claim 26, wherein:

所述第一消息为第一上行无线接入网配置转移消息；所述第四消息为第二上行无线接入网配置转移消息；所述第二消息为第一下行无线接入网配置转移消息；所述第三消息为第二下行无线接入网配置转移消息。The first message is a first uplink radio access network configuration transfer message; the fourth message is a second uplink radio access network configuration transfer message; the second message is a first downlink radio access network configuration transfer message Message; the third message is a second downlink radio access network configuration transfer message.
根据权利要求24所述的核心网设备，其特征在于，所述核心网设备向所述第一基站发送第二消息之前，还包括：The core network device according to claim 24, wherein before the core network device sends the second message to the first base station, the method further comprises:

所述发送模块，还用于向所述第二基站发送第五消息，所述第一消息与所述第五消息分别用于请求将终端设备中至少一个PDU会话从所述第一基站切换到第二基站中的目标小区，其中，所述第一消息与所述第五消息包括所述至少一个PDU会话中每个PDU会话的标识和所述目标小区的标识；The sending module is further configured to send a fifth message to the second base station, where the first message and the fifth message are respectively used to request to switch at least one PDU session in the terminal device from the first base station to The target cell in the second base station, wherein the first message and the fifth message include an identifier of each PDU session in the at least one PDU session and an identifier of the target cell;

所述接收模块，还用于接收所述第二基站发送的第六消息，所述第六消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息；The receiving module is further configured to receive a sixth message sent by the second base station, where the sixth message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station;

其中，所述第一消息还包括所述第二基站的标识；或者，所述第一消息还包括第二基站的标识和所述至少一个跟踪区域的标识。Wherein, the first message further includes the identity of the second base station; or, the first message further includes the identity of the second base station and the identity of the at least one tracking area.
根据权利要求28所述的核心网设备，其特征在于，所述第一消息为切换要求消息，所述第五消息为切换请求消息；The core network device according to claim 28, wherein the first message is a handover request message, and the fifth message is a handover request message;

所述第二消息为切换准备失败消息，所述第六消息为切换失败消息；或者，The second message is a handover preparation failure message, and the sixth message is a handover failure message; or,

所述第二消息为切换命令消息，所述第六消息为切换请求确认消息。The second message is a handover command message, and the sixth message is a handover request confirmation message.
一种基站，其特征在于，所述基站为第二基站，包括：A base station, characterized in that the base station is a second base station, and includes:

接收模块，用于接收核心网设备发送的第一消息，所述第一消息用于请求获取第二基站包含的至少一个小区所支持的网络切片的信息，或者，所述第一消息用于请求获取第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息，所述网络切片的信息包括所述网络切片的标识和所述网络切片的优先级；The receiving module is configured to receive a first message sent by a core network device, where the first message is used to request information about network slices supported by at least one cell included in the second base station, or the first message is used to request Acquiring information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station, where the information about the network slice includes an identifier of the network slice and a priority of the network slice;

发送模块，用于向所述核心网设备发送第二消息，所述第二消息包括所述第二基站包含的至少一个小区所属的至少一个跟踪区域所支持的网络切片的信息。The sending module is configured to send a second message to the core network device, where the second message includes information about a network slice supported by at least one tracking area to which at least one cell belongs and included in the second base station.
根据权利要求30所述的基站，其特征在于，所述第一消息和第二消息包括所述第一基站的标识和所述第二基站的标识。The base station according to claim 30, wherein the first message and the second message include an identifier of the first base station and an identifier of the second base station.
根据权利要求31所述的基站，其特征在于，所述第一消息为下行无线接入网配置转移消息；所述第二消息为上行无线接入网配置转移消息。The base station according to claim 31, wherein the first message is a downlink radio access network configuration transfer message; and the second message is an uplink radio access network configuration transfer message.
根据权利要求30所述的基站，其特征在于，所述第一消息用于请求将终端设备中至少一个PDU会话从所述第一基站切换到第二基站中的目标小区，所述第一消息包括所述至少一个PDU会话中每个PDU会话的标识和所述目标小区的标识。The base station according to claim 30, wherein the first message is used to request the handover of at least one PDU session in the terminal device from the first base station to the target cell in the second base station, and the first message It includes the identifier of each PDU session in the at least one PDU session and the identifier of the target cell.
根据权利要求33所述的基站，其特征在于，所述第一消息为切换请求消息；所述第二消息为切换失败消息或者切换请求确认消息。The base station according to claim 33, wherein the first message is a handover request message; and the second message is a handover failure message or a handover request confirmation message.
一种基站，其特征在于，所述基站包括处理器、存储器和收发器；A base station, characterized in that the base station includes a processor, a memory, and a transceiver;

所述收发器用于进行消息的接收和发送；The transceiver is used to receive and send messages;

所述存储器用于存储指令；The memory is used to store instructions;

所述处理器用于执行所述存储器存储的指令，当处理器执行所述存储器存储的指令时，所述基站用于执行权利要求1-6所述的方法，或用于执行权利要求书13-17所述的方法。The processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the base station is used to execute the method described in claims 1-6, or to execute claim 13- 17. The method described.
一种核心网设备，其特征在于，所述核心网设备包括处理器、存储器和收发器；A core network device, characterized in that the core network device includes a processor, a memory, and a transceiver;

所述收发器用于进行消息的接收和发送；The transceiver is used to receive and send messages;

所述存储器用于存储指令；The memory is used to store instructions;

所述处理器用于执行所述存储器存储的指令，当处理器执行所述存储器存储的指令时，所述核心网设备用于执行权利要求7-12所述的方法。The processor is configured to execute instructions stored in the memory, and when the processor executes the instructions stored in the memory, the core network device is configured to execute the method according to claims 7-12.
一种通信***，其特征在于，所述通信***包括第一基站、核心网设备和第二基站；其中，所述第一基站用于执行权利要求1-6所述的方法；所述核心网设备用于执行权利要求7-12所述的方法；所述第二基站用于执行权利要求书13-17所述的方法。A communication system, characterized in that, the communication system includes a first base station, a core network device, and a second base station; wherein the first base station is used to execute the method of claims 1-6; the core network The device is used to perform the method described in claims 7-12; the second base station is used to perform the method described in claims 13-17.
一种可读存储介质，其特征在于，所述可读存储介质用于存储指令，使如权利要求1-6中任一项所述的方法被实现，或者，使如权利要求13-17中任一项所述的方法被实现。A readable storage medium, characterized in that, the readable storage medium is used to store instructions to enable the method according to any one of claims 1-6 to be implemented, or to enable the method as described in claims 13-17 Any one of the methods described is implemented.
一种可读存储介质，其特征在于，所述可读存储介质用于存储指令，使如权利要求7-12中任一项所述的方法被实现。A readable storage medium, wherein the readable storage medium is used to store instructions to enable the method according to any one of claims 7-12 to be implemented.