WO2018177051A1

WO2018177051A1 - Method and apparatus for accessing network slice

Info

Publication number: WO2018177051A1
Application number: PCT/CN2018/077121
Authority: WO
Inventors: 武绍芸
Original assignee: 华为技术有限公司
Priority date: 2017-03-30
Filing date: 2018-02-24
Publication date: 2018-10-04
Also published as: CN108924883A; CN108924883B

Abstract

Provided are a method and apparatus for accessing a network slice, belonging to the technical field of communications. The method comprises: receiving a user migration notification sent by a management device; acquiring network slice selection assistance information (NSSAI) corresponding to a first network slice, wherein the first network slice is a network slice that a migrated user equipment needs to access again; and sending the NSSAI corresponding to the first network slice to the user equipment, wherein the NSSAI corresponding to the first network slice is used for instructing the user equipment to access the first network slice. According to the present disclosure, when the user equipment is migrated, the number of requests in a network can be decreased, and the influence on normal transmission service data is avoided.

Description

一种接入网络切片的方法和装置Method and device for accessing network slice

本申请要求于2017年3月30日提交中国专利局、申请号为201710204002.6、发明名称为“一种接入网络切片的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims priority to Chinese Patent Application No. 200910204002.6, entitled "A Method and Apparatus for Accessing Network Slices", filed on March 30, 2017, the entire disclosure of which is incorporated herein by reference. In this application.

技术领域Technical field

本公开涉及通信技术领域，特别涉及一种接入网络切片的方法和装置。The present disclosure relates to the field of communications technologies, and in particular, to a method and apparatus for accessing network slices.

背景技术Background technique

第五代移动通信技术(fifth-generation,5G)网络中网络业务丰富多样，并且不同的网络业务对网络有不同的要求；例如，自动驾驶和远程控制等网络业务要求网络具备超低时延和超高可靠性；增强现实(Augmented Reality，AR)/虚拟现实(Virtual Reality，VR)等网络业务要求网络具备超高带宽；物联网(Internet of Things，IOT)等网络业务要求网络具备支持海量设备接入和超低省电。因此，为了满足不同网络业务的需求，将网络划分为多个网络切片，不同的网络切片用于实现不同的网络业务。The fifth-generation mobile communication technology (fifth-generation, 5G) network has a variety of network services, and different network services have different requirements on the network; for example, network services such as autonomous driving and remote control require ultra-low latency and network Ultra-high reliability; Augmented Reality (AR)/Virtual Reality (VR) and other network services require ultra-high bandwidth; Internet of Things (IOT) and other network services require the network to support massive devices. Access and ultra low power saving. Therefore, in order to meet the requirements of different network services, the network is divided into multiple network slices, and different network slices are used to implement different network services.

用户可以通过用户设备(User Equipment，UE)接入到某网络业务的网络切片中，以便进行网络业务。UE可以从公共控制面(Common Control Plane，Common CP)中获取网络切片选择的辅助信息(NSSAI，network slice selection assistance information)。当用户设备需要接入某网络切片时，该用户设备可以向无线接入网(radio access network，RAN)发送接入请求，接入请求中携带有用户设备想要接入的网络切片的NSSAI，RAN可以将该接入请求发送给具有网络切片选择功能(Slice Selection Function，SSF)的Common CP，Common CP则可以将该接入请求发送给对应的网络切片，以使用户设备可以接入到该网络切片中。The user equipment (User Equipment, UE) can access the network slice of a network service to perform network services. The UE may obtain network slice selection assistance information (NSSAI) from a Common Control Plane (Common CP). When the user equipment needs to access a certain network slice, the user equipment may send an access request to the radio access network (RAN), where the access request carries the NSSAI of the network slice that the user equipment wants to access. The RAN may send the access request to a Common CP having a network slice selection function (SSF), and the Common CP may send the access request to the corresponding network slice, so that the user equipment can access the In the network slice.

在实际中，网络切片的管理设备会基于网络管理员的操作指令或预设的调整策略，对网络切片进行调整，这时，某网络切片中的部分或全部UE会同时下线，例如，网络管理员通过切片管理***删除某网络切片，该网络切片中的全部UE会下线，然后重新接入其他网络切片；策略控制中心根据预先配置的策略，自动将已经接入到某个网络切片的部分或全部UE下线，以使这些UE重新接入到其他网络切片。In practice, the network slice management device adjusts the network slice based on the network administrator's operation command or a preset adjustment policy. At this time, some or all UEs in a network slice are simultaneously offline, for example, the network. The administrator deletes a network slice through the slice management system, all UEs in the network slice go offline, and then re-access other network slices; the policy control center automatically connects to a network slice according to a pre-configured policy. Some or all of the UEs go offline to re-access these UEs to other network slices.

在实现本公开的过程中，发明人发现现有技术至少存在以下问题：In carrying out the process of the present disclosure, the inventors have found that the prior art has at least the following problems:

UE检测到自身下线后，会在预设时长内反复向网络切片发送接入请求，这样，当该网络切片中大量的UE同时下线后，会出现大量的UE反复向该网络切片发送接入请求的情况，导致网络中的请求数量突然增大，网络负担变重，影响正常的业务数据的传输。After detecting that the UE is offline, it will repeatedly send an access request to the network slice within a preset duration. When a large number of UEs in the network slice are offline at the same time, a large number of UEs repeatedly send and receive to the network slice. In the case of the incoming request, the number of requests in the network suddenly increases, the network burden becomes heavier, and the transmission of normal business data is affected.

发明内容Summary of the invention

为了解决现有技术的问题，本公开实施例提供了一种接入网络切片的方法和装置。所述技术方案如下：In order to solve the problems of the prior art, embodiments of the present disclosure provide a method and apparatus for accessing network slices. The technical solution is as follows:

第一方面，提供了一种接入网络切片的方法，所述方法包括：In a first aspect, a method for accessing a network slice is provided, the method comprising:

接收管理设备发送的用户迁移通知；Receiving a user migration notification sent by the management device;

获取第一网络切片对应的网络切片选择的辅助信息NSSAI，所述第一网络切片是进行迁移的用户设备需要重新接入的网络切片；Acquiring the auxiliary information NSSAI of the network slice selected by the first network slice, where the first network slice is a network slice that the user equipment that needs to be re-accessed needs to re-access;

向所述用户设备发送所述第一网络切片对应的NSSAI，所述第一网络切片对应的NSSAI用于指示所述用户设备接入所述第一网络切片。Sending, to the user equipment, an NSSAI corresponding to the first network slice, where the NSSAI corresponding to the first network slice is used to indicate that the user equipment accesses the first network slice.

这样，当需要将第二网络切片中的用户设备迁移到第一网络切片中时，第二网络切片可以向用户设备发送第一网络切片的NSSAI，以使该用户设备接入到第一网络切片中，可以避免用户设备在下线后反复向第二网络切片发送接入请求的情况，降低网络中的请求数量，避免影响正常的业务数据的传输。In this way, when the user equipment in the second network slice needs to be migrated into the first network slice, the second network slice may send the NSSAI of the first network slice to the user equipment, so that the user equipment accesses the first network slice. The user equipment can be prevented from repeatedly sending an access request to the second network slice after going offline, reducing the number of requests in the network, and avoiding affecting the transmission of normal service data.

在一种可能的实现方式中，所述获取所述第一网络切片对应的NSSAI，包括：In a possible implementation, the acquiring the NSSAI corresponding to the first network slice includes:

获取所述用户迁移通知中携带的所述第一网络切片对应的NSSAI；或者Obtaining an NSSAI corresponding to the first network slice carried in the user migration notification; or

获取所述用户迁移通知中携带的所述第一网络切片的标识，根据预先存储的网络切片的标识和NSSAI的对应关系，确定所述第一网络切片的标识对应的NSSAI。Obtaining an identifier of the first network slice that is carried in the user migration notification, and determining an NSSAI corresponding to the identifier of the first network slice according to the correspondence between the identifier of the network slice and the NSSAI.

这样，提供了获取第一网络切片对应的NSSAI的不同实现方式。In this way, different implementations of obtaining the NSSAI corresponding to the first network slice are provided.

在另一种可能的实现方式中，所述向所述用户设备发送所述第一网络切片对应的NSSAI，包括：In another possible implementation, the sending the NSSAI corresponding to the first network slice to the user equipment includes:

如果在接收到所述用户迁移通知后，接收到所述用户设备发送的接入请求，则向所述用户设备发送拒绝消息，所述拒绝消息中携带有所述第一网络切片对应的NSSAI。And receiving, after receiving the user migration notification, the access request sent by the user equipment, sending a reject message to the user equipment, where the reject message carries the NSSAI corresponding to the first network slice.

这样，提供了对正在接入第二网络切片的用户设备的处理方式。In this way, a way of handling the user equipment that is accessing the second network slice is provided.

在另一种可能的实现方式中，所述用户设备的状态信息为空闲状态，所述向所述用户设备发送所述第一网络切片对应的NSSAI，包括：In another possible implementation, the status information of the user equipment is an idle state, and the sending the NSSAI corresponding to the first network slice to the user equipment includes:

向所述用户设备发送寻呼消息，所述寻呼消息中携带有所述第一网络切片对应的NSSAI。Sending a paging message to the user equipment, where the paging message carries an NSSAI corresponding to the first network slice.

这样，提供了对状态信息为空闲状态的用户设备的处理方式。In this way, a way of handling the user equipment whose status information is idle is provided.

在另一种可能的实现方式中，所述用户设备的状态信息为连接状态，且所述用户设备与当前接入的第二网络切片正在进行数据传输，所述向所述用户设备发送所述第一网络切片对应的NSSAI，包括：In another possible implementation manner, the status information of the user equipment is a connection status, and the user equipment is performing data transmission with a currently accessed second network slice, where the sending is performed to the user equipment. The NSSAI corresponding to the first network slice includes:

向所述用户设备发送连接中断通知，所述连接中断通知中携带有所述第一网络切片对应的NSSAI。Sending a connection interruption notification to the user equipment, where the connection interruption notification carries an NSSAI corresponding to the first network slice.

这样，提供了对状态信息为连接状态，且正在与第二网络切片进行数据传输的用户设备的处理方式。In this way, a manner of processing the user equipment that is in a connected state with state information and is transmitting data with the second network slice is provided.

在另一种可能的实现方式中，所述用户设备的状态信息为连接状态，且所述用户设备与当前接入的第二网络切片未进行数据传输，所述向所述用户设备发送所述第一网络切片对应的NSSAI，包括：In another possible implementation manner, the status information of the user equipment is a connection status, and the user equipment does not perform data transmission with the currently accessed second network slice, and the sending the The NSSAI corresponding to the first network slice includes:

向所述第一网络切片发送对应所述用户设备的临时标识请求，以使所述第一网络切片为所述用户设备分配临时标识；Sending a temporary identification request corresponding to the user equipment to the first network slice, so that the first network slice allocates a temporary identifier to the user equipment;

接收所述第一网络切片发送的临时标识；Receiving a temporary identifier sent by the first network slice;

向所述用户设备发送临时标识更新消息，所述临时标识更新消息中携带有所述第一网络切片对应的NSSAI和所述临时标识。Sending a temporary identifier update message to the user equipment, where the temporary identifier update message carries the NSSAI corresponding to the first network slice and the temporary identifier.

这样，提供了对状态信息为连接状态，且与接入的第二网络切片未进行数据传输的用户设备的处理方式。In this way, a processing manner is provided for the user equipment whose status information is in a connected state and which is not subjected to data transmission with the accessed second network slice.

在另一种可能的实现方式中，所述向所述用户设备发送所述第一网络切片对应的NSSAI之后，还包括：In another possible implementation manner, after the sending, by the user equipment, the NSSAI corresponding to the first network slice, the method further includes:

接收所述用户设备发送的携带有所述第一网络切片对应的NSSAI的接入请求；Receiving, by the user equipment, an access request that carries an NSSAI corresponding to the first network slice;

将所述接入请求发送给所述第一网络切片，以使所述第一网络切片对所述用户设备进行接入处理。Sending the access request to the first network slice, so that the first network slice performs access processing on the user equipment.

这样，提供了将用户设备重新接入第一网络切片的实现方式。In this way, an implementation of re-accessing the user equipment to the first network slice is provided.

在另一种可能的实现方式中，所述方法还包括：In another possible implementation manner, the method further includes:

向需要进行迁移的全部用户设备发送所述第一网络切片对应的NSSAI后，向所述管理设备发送迁移完毕通知；或者After sending the NSSAI corresponding to the first network slice to all user equipments that need to be migrated, sending a migration completion notification to the management device; or

当达到预设迁移时长时，向所述管理设备发送迁移完毕通知。When the preset migration duration is reached, a migration completion notification is sent to the management device.

这样，可以及时的通知管理设备迁移完毕，以便管理设备进行后续处理，并且预先设置了迁移时长，可以限制用户迁移处理的时间，避免因用户迁移时长过长，而耽误调整网络切片的情况。In this way, the management device can be notified in a timely manner to manage the device for subsequent processing, and the migration duration is set in advance, which can limit the time for user migration processing, and avoid delays in adjusting network slicing due to long user migration time.

第二方面，提供了一种接入网络切片的方法，所述方法包括：In a second aspect, a method for accessing a network slice is provided, the method comprising:

接收第二网络切片发送的第一网络切片对应的网络切片选择的辅助信息NSSAI，所述第一网络切片对应的NSSAI用于指示用户设备接入所述第一网络切片；Receiving, by the second network slice, the network slice selected auxiliary information NSSAI corresponding to the first network slice, where the NSSAI corresponding to the first network slice is used to indicate that the user equipment accesses the first network slice;

基于所述第一网络切片对应的NSSAI，接入所述第一网络切片。And accessing the first network slice based on the NSSAI corresponding to the first network slice.

在一种可能的实现方式中，所述接收第二网络切片发送的所述第一网络切片对应的NSSAI，包括：In a possible implementation, the receiving the NSSAI corresponding to the first network slice sent by the second network slice includes:

向所述第二网络切片发送接入请求；Sending an access request to the second network slice;

接收所述第二网络切片发送的拒绝消息，所述拒绝消息中携带有所述第一网络切片对应的NSSAI。Receiving a reject message sent by the second network slice, where the reject message carries an NSSAI corresponding to the first network slice.

这样，提供了正在接入第二网络切片的用户设备的处理方式。In this way, the manner in which the user equipment that is accessing the second network slice is processed is provided.

在另一种可能的实现方式中，所述用户设备的状态信息为空闲状态，所述接收第二网络切片发送的所述第一网络切片对应的NSSAI，包括：In another possible implementation manner, the status information of the user equipment is an idle state, and the receiving the NSSAI corresponding to the first network slice sent by the second network slice includes:

接收所述第二网络切片发送的寻呼消息，所述寻呼消息中携带有所述第一网络切片对应的NSSAI。Receiving a paging message sent by the second network slice, where the paging message carries an NSSAI corresponding to the first network slice.

这样，提供了状态信息为空闲状态的用户设备的处理方式。In this way, a processing method of the user equipment whose status information is in an idle state is provided.

在另一种可能的实现方式中，所述用户设备的状态信息为连接状态，且所述用户设备与所述第二网络切片正在进行数据传输，所述接收第二网络切片发送的所述第一网络切片对应的NSSAI，包括：In another possible implementation manner, the status information of the user equipment is a connection status, and the user equipment and the second network slice are performing data transmission, and the receiving the second network slice sends the The NSSAI corresponding to a network slice includes:

接收所述第二网络切片发送的连接中断通知，所述连接中断通知中携带有所述第一网络切片对应的NSSAI。Receiving a connection interruption notification sent by the second network slice, where the connection interruption notification carries an NSSAI corresponding to the first network slice.

这样，提供了状态信息为连接状态，且正在与第二网络切片进行数据传输的用户设备的处理方式。In this way, a manner of processing the user equipment whose status information is in the connected state and is being transmitted with the second network slice is provided.

在另一种可能的实现方式中，所述用户设备的状态信息为连接状态，且所述用户设备与所述第二网络切片未进行数据传输，所述接收第二网络切片发送的所述第一网络切片对应的NSSAI，包括：In another possible implementation manner, the status information of the user equipment is a connection status, and the user equipment does not perform data transmission with the second network slice, and the receiving the second network slice sends the The NSSAI corresponding to a network slice includes:

接收所述第二网络切片发送的临时标识更新消息，所述临时标识更新消息中携带有所述第一网络切片对应的NSSAI和所述第一网络切片为所述用户设备分配的临时标识；And receiving, by the second network slice, a temporary identifier update message, where the temporary identifier update message carries the NSSAI corresponding to the first network slice and the temporary identifier that is allocated by the first network slice to the user equipment;

所述方法还包括：The method further includes:

基于所述临时标识与所述第一网络切片进行数据传输。Data transmission is performed with the first network slice based on the temporary identifier.

这样，提供了状态信息为连接状态，且与接入的第二网络切片未进行数据传输的用户设备的处理方式。In this way, a processing manner is provided in which the status information is in the connected state and the user equipment that has not performed data transmission with the accessed second network slice.

在另一种可能的实现方式中，所述基于所述第一网络切片对应的NSSAI，接入所述第一网络切片，包括：In another possible implementation, the accessing the first network slice based on the NSSAI corresponding to the first network slice includes:

向所述第二网络切片发送携带有所述第一网络切片对应的NSSAI的接入请求，以使所述第二网络切片将所述接入请求发送给所述第一网络切片，由所述第一网络切片对所述用户设备进行接入处理；Transmitting, to the second network slice, an access request carrying an NSSAI corresponding to the first network slice, so that the second network slice sends the access request to the first network slice, by The first network slice performs access processing on the user equipment;

接入所述第一网络切片。Accessing the first network slice.

这样，提供了用户设备重新接入第一网络切片的实现方式。In this way, an implementation of re-accessing the first network slice by the user equipment is provided.

第三方面，提供了一种接入网络切片的方法，所述方法包括：In a third aspect, a method for accessing a network slice is provided, the method comprising:

接收用户迁移指令，所述用户迁移指令中携带有所述需要进行用户设备的迁移处理的第二网络切片的标识，以及所述用户设备需要重新接入的第一网络切片的标识；Receiving a user migration instruction, where the user migration instruction carries an identifier of the second network slice that needs to perform the migration process of the user equipment, and an identifier of the first network slice that the user equipment needs to re-access;

向所述第二网络切片发送用户迁移通知，以使所述第二网络切片将所述用户设备迁移到所述第一网络切片中。Transmitting a user migration notification to the second network slice to cause the second network slice to migrate the user equipment into the first network slice.

在一种可能的实现方式中，所述向所述第二网络切片发送用户迁移通知，包括：In a possible implementation, the sending the user migration notification to the second network slice includes:

向所述第二网络切片发送携带有所述第一网络切片的标识的用户迁移通知；或者，Transmitting, to the second network slice, a user migration notification carrying the identifier of the first network slice; or

根据预先存储的网络切片的标识和NSSAI的对应关系，确定所述第一网络切片的标识对应的NSSAI；Determining, according to the correspondence between the identifier of the network slice and the NSSAI, the NSSAI corresponding to the identifier of the first network slice;

向所述第二网络切片发送携带有所述第一网络切片的NSSAI的用户迁移通知。Transmitting a user migration notification of the NSSAI carrying the first network slice to the second network slice.

这样，提供了获取发送用户迁移通知的不同实现方式。In this way, different implementations for obtaining notifications of sending user migrations are provided.

当接收到所述第二网络切片发送的迁移完毕通知时，删除所述第二网络切片。And deleting the second network slice when receiving the migration completion notification sent by the second network slice.

这样，可以及时获知用户设备迁移完毕，以便管理设备及时进行后续处理，提高调整网络切片的效率。In this way, the user equipment can be known to be migrated in time, so that the management device can perform subsequent processing in time to improve the efficiency of adjusting the network slice.

第四方面，提供了一种第二网络切片，该第二网络切片包括：第一处理器、第一网络接口、第一存储器、第一发射器和第一接收器，第一存储器与第一网络接口分别与第一处理器相连；第一处理器被配置为执行第一存储器中存储的指令；第一处理器通过执行指令来实现上述第一方面或第一方面中任意一种可能的实现方式所提供的接入网络切片的方法。In a fourth aspect, a second network slice is provided, where the second network slice includes: a first processor, a first network interface, a first memory, a first transmitter, and a first receiver, and the first memory and the first The network interface is respectively connected to the first processor; the first processor is configured to execute the instructions stored in the first memory; the first processor implements the first aspect or any one of the possible implementations of the first aspect by executing the instructions The method of accessing the network slice provided by the mode.

第五方面，本发明实施例提供了一种接入网络切片的装置，该接入网络切片的装置包括至少一个单元，该至少一个单元用于实现上述第一方面或第一方面中任意一种可能的实现方式所提供的接入网络切片的方法。In a fifth aspect, an embodiment of the present invention provides an apparatus for accessing a network slice, where the apparatus for accessing a network slice includes at least one unit, where the at least one unit is used to implement any one of the foregoing first aspect or the first aspect. A possible implementation provides a method of accessing network slices.

第六方面，提供了一种用户设备，该用户设备包括：第二处理器、第二网络接口、第二存储器、第二接收器和第二发射器，第二存储器与第二网络接口分别与第二处理器相连；第二处理器被配置为执行第二存储器中存储的指令；第二处理器通过执行指令来实现上述第二方面或第二方面中任意一种可能的实现方式所提供的接入网络切片的方法。According to a sixth aspect, a user equipment is provided, where the user equipment includes: a second processor, a second network interface, a second memory, a second receiver, and a second transmitter, where the second memory and the second network interface respectively a second processor coupled; the second processor configured to execute instructions stored in the second memory; the second processor implementing the instructions provided by any one of the second aspect or the second aspect of the second aspect A method of accessing network slices.

第七方面，本发明实施例提供了一种接入网络切片的装置，该接入网络切片的装置包括至少一个单元，该至少一个单元用于实现上述第二方面或第二方面中任意一种可能的实现方式所提供的接入网络切片的方法。In a seventh aspect, the embodiment of the present invention provides an apparatus for accessing a network slice, where the apparatus for accessing a network slice includes at least one unit, where the at least one unit is used to implement any one of the foregoing second aspect or the second aspect. A possible implementation provides a method of accessing network slices.

第八方面，提供了一种管理设备，该管理设备包括：第三处理器、第三网络接口、第三存储器、第三接收器和第三发射器，第三存储器与第三网络接口分别与第三处理器相连；第三处理器被配置为执行第三存储器中存储的指令；第三处理器通过执行指令来实现上述第三方面或第三方面中任意一种可能的实现方式所提供的接入网络切片的方法。According to an eighth aspect, a management device is provided, the management device includes: a third processor, a third network interface, a third memory, a third receiver, and a third transmitter, wherein the third memory and the third network interface respectively a third processor is coupled; the third processor is configured to execute the instructions stored in the third memory; and the third processor implements the instructions provided by any one of the third or third aspects of the foregoing A method of accessing network slices.

第九方面，本发明实施例提供了一种接入网络切片的装置，该接入网络切片的装置包括至少一个单元，该至少一个单元用于实现上述第三方面或第三方面中任意一种可能的实现方式所提供的接入网络切片的方法。A ninth aspect, the embodiment of the present invention provides an apparatus for accessing a network slice, where the apparatus for accessing a network slice includes at least one unit, where the at least one unit is used to implement any one of the foregoing third aspect or the third aspect. A possible implementation provides a method of accessing network slices.

第十方面，本发明实施例提供了一种计算机可读存储介质，包括指令，当所述计算机可读存储介质在第二网络切片上运行时，使得所述第二网络切片执行上述第一方面或第一方面中任意一种可能的实现方式所提供的接入网络切片的方法。According to a tenth aspect, an embodiment of the present invention provides a computer readable storage medium, including instructions, when the computer readable storage medium runs on a second network slice, causing the second network slice to perform the first aspect Or a method of accessing a network slice provided by any of the possible implementations of the first aspect.

第十一方面，一种计算机可读存储介质，包括指令，当所述计算机可读存储介质在用户设备上运行时，使得所述用户设备执行上述第二方面或第二方面中任意一种可能的实现方式所提供的接入网络切片的方法。In an eleventh aspect, a computer readable storage medium, comprising instructions, when the computer readable storage medium is run on a user device, causing the user device to perform any one of the second aspect or the second aspect described above The method of accessing the network slice provided by the implementation.

第十二方面，一种计算机可读存储介质，包括指令，当所述计算机可读存储介质在管理设备上运行时，使得所述管理设备执行上述第三方面或第三方面中任意一种可能的实现方式所提供的接入网络切片的方法。A twelfth aspect, a computer readable storage medium comprising instructions, when the computer readable storage medium is run on a management device, causing the management device to perform any one of the third aspect or the third aspect described above The method of accessing the network slice provided by the implementation.

本公开实施例提供的技术方案带来的有益效果是：The beneficial effects brought by the technical solutions provided by the embodiments of the present disclosure are:

本公开实施例中，当需要将第二网络切片中的用户设备迁移到第一网络切片中时，第二网络切片可以向用户设备发送第一网络切片的NSSAI，以使该用户设备接入到第一网络切片中，可以避免用户设备在下线后反复向第二网络切片发送接入请求的情况，降低网络中的请求数量，避免影响正常的业务数据的传输。In the embodiment of the present disclosure, when the user equipment in the second network slice needs to be migrated into the first network slice, the second network slice may send the NSSAI of the first network slice to the user equipment, so that the user equipment is accessed. In the first network slice, the user equipment may be repeatedly sent to the second network slice after the offline line is disconnected, and the number of requests in the network is reduced to avoid affecting the transmission of normal service data.

附图说明DRAWINGS

图1是本公开实施例提供的***框架示意图；1 is a schematic diagram of a system framework provided by an embodiment of the present disclosure;

图2是本公开实施例提供的***框架示意图；2 is a schematic diagram of a system framework provided by an embodiment of the present disclosure;

图3是本公开实施例提供的网络切片的结构示意图；FIG. 3 is a schematic structural diagram of a network slice according to an embodiment of the present disclosure;

图4是本公开实施例提供的用户设备的结构示意图；4 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

图5是本公开实施例提供的管理设备的结构示意图；FIG. 5 is a schematic structural diagram of a management device according to an embodiment of the present disclosure;

图6是本公开实施例提供的接入网络切片的方法流程图；FIG. 6 is a flowchart of a method for accessing a network slice according to an embodiment of the present disclosure;

图7是本公开实施例提供的接入网络切片的方法流程图；FIG. 7 is a flowchart of a method for accessing a network slice according to an embodiment of the present disclosure;

图8是本公开实施例提供的接入网络切片的方法流程图；FIG. 8 is a flowchart of a method for accessing a network slice according to an embodiment of the present disclosure;

图9是本公开实施例提供的接入网络切片的方法流程图；FIG. 9 is a flowchart of a method for accessing a network slice according to an embodiment of the present disclosure;

图10是本公开实施例提供的接入网络切片的方法流程图；FIG. 10 is a flowchart of a method for accessing a network slice according to an embodiment of the present disclosure;

图11是本公开实施例提供的接入网络切片的装置结构示意图；11 is a schematic structural diagram of an apparatus for accessing a network slice according to an embodiment of the present disclosure;

图12是本公开实施例提供的接入网络切片的装置结构示意图；FIG. 12 is a schematic structural diagram of an apparatus for accessing a network slice according to an embodiment of the present disclosure;

图13是本公开实施例提供的接入网络切片的装置结构示意图。FIG. 13 is a schematic structural diagram of an apparatus for accessing a network slice according to an embodiment of the present disclosure.

具体实施方式detailed description

第五代移动通信技术(fifth-generation,5G)网络中网络业务丰富多样，并且不同的网络业务对网络有不同的要求。例如，自动驾驶和远程控制等网络业务要求网络具备超低时延和超高可靠性；增强现实(Augmented Reality，AR)/虚拟现实(Virtual Reality，VR)等网络业务要求网络具备超高带宽；物联网(Internet of Things，IOT)等网络业务要求网络具备支持海量设备接入和超低省电；无人机和高铁等网络业务要求网络具备高移动性。为了满足不同网络业务的需求，网络管理员可以将网络划分为多个网络切片，不同的网络切片可以用于实现不同的网络业务。用户则可以通过用户设备(User Equipment，UE)接入到不同网络业务对应的网络切片中，以进行不同的网络业务。UE可以是无线终端，例如可以为移动电话、计算机、平板电脑、个人数码助理(personal digital assistant，PDA)、移动互联网设备(mobile Internet device，MID)、可穿戴设备、互联网协议(Internet Protocol，IP)电话、网络打印机和电子书阅读器(e-book reader)等。The fifth-generation mobile communication technology (fifth-generation, 5G) network has rich and diverse network services, and different network services have different requirements for the network. For example, network services such as autonomous driving and remote control require ultra-low latency and ultra-high reliability of the network; network services such as Augmented Reality (AR)/Virtual Reality (VR) require ultra-high bandwidth; Network services such as the Internet of Things (IOT) require the network to support massive equipment access and ultra-low power consumption; network services such as drones and high-speed rails require high mobility of the network. In order to meet the needs of different network services, the network administrator can divide the network into multiple network slices, and different network slices can be used to implement different network services. The user equipment (User Equipment, UE) can access the network slice corresponding to different network services to perform different network services. The UE may be a wireless terminal, such as a mobile phone, a computer, a tablet, a personal digital assistant (PDA), a mobile Internet device (MID), a wearable device, an Internet Protocol (IP). ) Telephones, network printers, and e-book readers.

网络切片可以由管理设备进行管理，管理设备可以是具有网络切片管理功能的任意设备，比如切片管理***、策略控制中心和智能分析中心等。如图1所示，以管理设备为切片管理***为例，网络***可以包括切片管理***和多个网络切片。其中，切片管理***可以是某个服务器中的功能模块，也可以是一个单独的服务器，网络管理员可以通过切片管理***进行创建网络切片、删除网络切片、以及将某网络切片中的部分用户设备迁移到另一网络切片等操作；网络切片可以包括RAN切片、核心网切片以及传输切片。与当前4G网络类比，RAN切片的能力相当于1个或多个基站(Evolved Node B，eNB)，核心网切片的能力相当于移动性管理实体(Mobility Management Entity，MME)、服务网关(Serving Gate Way，SGW)的控制面、分组数据网网关(Packet Data Network Gateway，PGW)的控制面、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)、或归属签约用户服务器(Home Subscriber Server，HSS)等；传输切片相当于连接其他设备的路由器等路由转发设备。The network slice can be managed by the management device, and the management device can be any device with network slice management functions, such as a slice management system, a policy control center, and an intelligent analysis center. As shown in FIG. 1 , taking the management device as a slice management system as an example, the network system may include a slice management system and multiple network slices. The slice management system may be a function module in a server or a separate server, and the network administrator may create a network slice, delete a network slice, and part of the user equipment in a network slice through the slice management system. Migrating to another network slice, etc. operations; network slices can include RAN slices, core network slices, and transport slices. Compared with the current 4G network, the capability of the RAN slice is equivalent to one or more base stations (Evolved Node B, eNB). The capability of the core network slice is equivalent to the Mobility Management Entity (MME) and the Serving Gate (Serving Gate). The control plane of the Way, SGW, the control plane of the Packet Data Network Gateway (PGW), the Policy and Charging Rules Function (PCRF), or the Home Subscriber Server (Home Subscriber Server) , HSS), etc.; transport slicing is equivalent to a routing and forwarding device such as a router that connects other devices.

网络管理员在划分网络切片时，可以将核心网划分为多个核心网切片，每个核心网切片包含一组特定功能的网络功能(network function，NF)。核心网切片的功能可以包括CP以及UP。CP的功能可以包括公共CP功能(Common Control Plane NFs，CCNF)。公共CP NFs可以包括移动管理(Mobile Management，MM)、鉴权(authentication)等，通过接入管理和移动管理(Access and mobility management，AMF)以及网元切片选择功能实体(Slice Selection Function，SSF)来实现。公共CP NFs可以被一个或者多个网络切片共同使用，如图2所示，为本实施例提供的一种可能的5G网络架构示意图，其中，网络切片A和网络切片B共同使用一个公共CP NFs。RAN与SSF以及各个网络切片连通。UE接入RAN后，通过SSF选择到合适的网络切片，从而接入数据网络(data network)，通过CP NFs以及UP NFs以及参数配置提供定制化的服务，从而形成5G中端到端的网络切片架构。SSF在为UE选择网络切片时，可以基于用户库(Subscriber Repository)存储的所述UE的用户信息为所述UE选择网络切片。在实际中，SSF可以设置在公共CP NFs中，也可以设置在RAN中，本实施例以SSF设置在公共CP NFs中为例进行说明，其他情况与之类似。When dividing the network slice, the network administrator can divide the core network into multiple core network slices, and each core network slice contains a set of network functions (NF functions) of specific functions. The functions of the core network slice can include CP and UP. The functions of the CP may include Common Control Plane NFs (CCNF). Public CP NFs may include Mobile Management (MM), authentication, etc., through Access Management and Mobile Management (AMF), and Slice Selection Function (SSF). to realise. The common CP NFs can be used together by one or more network slices. As shown in FIG. 2, a possible 5G network architecture diagram is provided in this embodiment, where the network slice A and the network slice B jointly use a common CP NFs. . The RAN is connected to the SSF and each network slice. After the UE accesses the RAN, the SSF selects the appropriate network slice to access the data network, and provides customized services through CP NFs and UP NFs and parameter configuration, thereby forming an end-to-end network slicing architecture in the 5G. . When the SSF selects a network slice for the UE, the network slice may be selected for the UE based on the user information of the UE stored in the Subscriber Repository. In practice, the SSFs may be set in the common CP NFs or in the RAN. This embodiment is described by taking the SSF settings in the public CP NFs as an example, and other situations are similar.

参见图3，其示出了本发明示例性实施例提供的一种网络切片，该网络切片10包括第一收发器1011和第一存储器1012，该网络切片还可以包括第一处理器1013和第一网络接口1014。其中，第一存储器1012和第一网络接口1014分别与第一处理器1013连接；第一存储器1012用于存储程序代码，程序代码包括计算机操作指令，第一处理器1013和第一收发器1011用于执行第一存储器1012中存储的程序代码，用于实现接入网络切片的相关处理，并可以通过第一网络接口1014与UE和管理设备进行交互。Referring to FIG. 3, a network slice provided by an exemplary embodiment of the present invention is shown. The network slice 10 includes a first transceiver 1011 and a first memory 1012. The network slice may further include a first processor 1013 and a first A network interface 1014. The first memory 1012 and the first network interface 1014 are respectively connected to the first processor 1013; the first memory 1012 is configured to store program code, the program code includes computer operation instructions, and the first processor 1013 and the first transceiver 1011 are used. The program code stored in the first memory 1012 is executed to implement related processing of the access network slice, and can interact with the UE and the management device through the first network interface 1014.

第一处理器1013包括一个或者一个以上处理核心。第一处理器1013通过运行软件程序以及单元，从而执行下述接入网络切片的方法。The first processor 1013 includes one or more processing cores. The first processor 1013 performs the following method of accessing the network slice by running a software program and a unit.

其中，第一存储器1012与第一网络接口1014分别与第一处理器1013和第一收发器1011相连，第一收发器1011可以包括第一发射器和第一接收器。The first memory 1012 and the first network interface 1014 are respectively connected to the first processor 1013 and the first transceiver 1011, and the first transceiver 1011 may include a first transmitter and a first receiver.

第一存储器1012可用于存储软件程序以及单元。第一存储器1012可存储第一操作***10121、至少一个功能所需的第一应用程序单元10122。第一操作***10121可以是实时操作***(Real Time eXecutive，RTX)、LINUX、UNIX、WINDOWS或OS X之类的操作***。The first memory 1012 can be used to store software programs and units. The first memory 1012 can store the first operating system 10121, the first application unit 10122 required for at least one function. The first operating system 10121 may be an operating system such as Real Time eXecutive (RTX), LINUX, UNIX, WINDOWS, or OS X.

参见图4，其示出了本发明示例性实施例提供的一种UE，该UE20包括第二收发器2011和第二存储器2012，该UE还可以包括第二处理器2013和第二网络接口2014。其中，第二存储器2012和第二网络接口2014分别与第二处理器2013连接；第二存储器2012用于存储程序代码，程序代码包括计算机操作指令，第二处理器2013和第二收发器2011用于执行第二存储器2012中存储的程序代码，用于实现接入网络切片的相关处理，并可以通过第二网络接口2014与网络设备进行交互。Referring to FIG. 4, a UE provided by an exemplary embodiment of the present invention is provided. The UE 20 includes a second transceiver 2011 and a second memory 2012. The UE may further include a second processor 2013 and a second network interface 2014. . The second memory 2012 and the second network interface 2014 are respectively connected to the second processor 2013; the second memory 2012 is used for storing program codes, the program code includes computer operation instructions, and the second processor 2013 and the second transceiver 2011 are used. The program code stored in the second memory 2012 is executed to implement related processing of access network slicing, and can interact with the network device through the second network interface 2014.

第二处理器2013包括一个或者一个以上处理核心。第二处理器2013通过运行软件程序以及单元，从而执行下述接入网络切片的方法。The second processor 2013 includes one or more processing cores. The second processor 2013 performs the following method of accessing the network slice by running the software program and the unit.

其中，第二存储器2012与第二网络接口2014分别与第二处理器2013和第二收发器2011相连，第二收发器2011可以包括第二发射器和第二接收器。The second memory 2012 and the second network interface 2014 are respectively connected to the second processor 2013 and the second transceiver 2011, and the second transceiver 2011 may include a second transmitter and a second receiver.

第二存储器2012可用于存储软件程序以及单元。第二存储器2012可存储第二操作***20121、至少一个功能所需的第二应用程序单元20122。第二操作***20121可以是实时操作***(Real Time eXecutive，RTX)、LINUX、UNIX、WINDOWS或OS X之类的操作***。The second memory 2012 can be used to store software programs as well as units. The second memory 2012 can store the second operating system 20122 required by the second operating system 20121, at least one function. The second operating system 20121 may be an operating system such as Real Time eXecutive (RTX), LINUX, UNIX, WINDOWS or OS X.

参见图5，其示出了本发明示例性实施例提供的一种管理设备，该管理设备30包括第三收发器3011和第三存储器3012，该管理设备还可以包括第三处理器3013和第三网络接口3014。其中，第三存储器3012和第三网络接口3014分别与第三处理器3013连接；第三存储器3012用于存储程序代码，程序代码包括计算机操作指令，第三处理器3013和第三收发器3011用于执行第三存储器3012中存储的程序代码，用于实现接入网络切片的相关处理，并可以通过第三网络接口3014与网络设备进行交互。Referring to FIG. 5, a management device provided by an exemplary embodiment of the present invention is shown. The management device 30 includes a third transceiver 3011 and a third memory 3012. The management device may further include a third processor 3013 and a third Three network interfaces 3014. The third memory 3012 and the third network interface 3014 are respectively connected to the third processor 3013; the third memory 3012 is configured to store program code, the program code includes computer operation instructions, and the third processor 3013 and the third transceiver 3011 are used. The program code stored in the third memory 3012 is executed to implement related processing of the access network slice, and can interact with the network device through the third network interface 3014.

第三处理器3013包括一个或者一个以上处理核心。第三处理器3013通过运行软件程序以及单元，从而执行下述接入网络切片的方法。The third processor 3013 includes one or more processing cores. The third processor 3013 performs the method of accessing the network slice described below by running the software program and the unit.

其中，第三存储器3012与第三网络接口3014分别与第三处理器3013和第三收发器3011相连，第三收发器3011可以包括第三发射器和第三接收器。The third memory 3012 and the third network interface 3014 are respectively connected to the third processor 3013 and the third transceiver 3011, and the third transceiver 3011 may include a third transmitter and a third receiver.

第三存储器3012可用于存储软件程序以及单元。第三存储器3012可存储第三操作***30121、至少一个功能所需的第三应用程序单元30122。第三操作***30121可以是实时操作***(Real Time eXecutive，RTX)、LINUX、UNIX、WINDOWS或OS X之类的操作***。The third memory 3012 can be used to store software programs and units. The third memory 3012 can store a third operating system 30121, a third application unit 30122 required for at least one function. The third operating system 30121 can be an operating system such as Real Time eXecutive (RTX), LINUX, UNIX, WINDOWS, or OS X.

在实际中，网络切片的管理设备会对网络切片进行调整，例如，网络管理员通过管理设备删除某网络切片，以使网络切片中的全部用户设备会下线，然后重新接入其他网络切片；策略控制中心根据预先配置的策略，自动将已经接入到某个网络切片的部分或全部用户设备下线，以使这些用户设备重新接入到其他网络切片；智能分析中心根据网络实时负荷，自动调整已经接入到某个网络切片的部分或全部用户重新接入到其他网络切片。In practice, the management device of the network slice adjusts the network slice. For example, the network administrator deletes a network slice through the management device, so that all user equipments in the network slice are offline, and then re-access other network slices. The policy control center automatically disconnects some or all user equipments that have been connected to a network slice according to the pre-configured policy, so that the user equipments are re-accessed to other network slices; the intelligent analysis center automatically according to the network real-time load. Adjust some or all users who have access to a network slice to re-access to other network slices.

为了避免用户设备在检测到自身下线后，反复向网络切片发送接入请求，导致网络负担突然变重的情况，本实施例提供了一种接入网络切片的方法，可以在对网络切片进行调整时，控制用户设备有序的接入其他网络切片，实现在迁移用户设备时降低网络负担，避免影响正常的业务数据的传输。该方法可以由网络切片、管理设备和用户设备共同实现，本实施例中的第一网络切片为需要用户设备重新接入的网络切片，第二网络切片为用户设备当前接入的网络切片。如图6所示，该方法的处理流程可以如下：In order to prevent the user equipment from repeatedly sending an access request to the network slice after detecting that the user equipment is offline, the network load is suddenly increased. The embodiment provides a method for accessing the network slice, which can be performed on the network slice. During the adjustment, the user equipment is controlled to access other network slices in an orderly manner, so that the network load is reduced when the user equipment is migrated, and the normal service data transmission is not affected. The method may be implemented by the network slice, the management device, and the user equipment. In this embodiment, the first network slice is a network slice that needs to be re-accessed by the user equipment, and the second network slice is a network slice currently accessed by the user equipment. As shown in FIG. 6, the processing flow of the method can be as follows:

步骤601，管理设备接收用户迁移指令。Step 601: The management device receives a user migration instruction.

其中，用户迁移指令中可以携带有需要进行用户设备的迁移处理的第二网络切片的标识，以及用户设备需要重新接入的第一网络切片的标识。The user migration command may carry the identifier of the second network slice that needs to perform the migration process of the user equipment, and the identifier of the first network slice that the user equipment needs to re-access.

在实施中，管理设备接收的用户迁移指令可以是基于网络管理员的操作生成的，也可以是基于预设的网络切片管理策略生成的。例如，管理设备可以是切片管理***，网络管理员可以在切片管理***中进行用户设备迁移操作，选择需要进行用户设备的迁移处理的网络切片(即第二网络切片)，以及用户需要重新接入的第一网络切片，然后选择迁移选项，管理设备则可以接收到该用户迁移指令；或者，管理设备可以是策略控制中心，策略控制中心可以根据预先配置的策略，确定需要进行调整的第二网络切片，以及需要用户设备重新接入的第一网络切片，进而生成用户迁移指令；或者，管理设备还可以是智能分析中心，智能分析中心可以根据网络实时负荷，确定第一网络切片和第二网络切片，从而生成用户迁移指令。In an implementation, the user migration instruction received by the management device may be generated based on a network administrator's operation, or may be generated based on a preset network slice management policy. For example, the management device may be a slice management system, and the network administrator may perform a user device migration operation in the slice management system, select a network slice (ie, a second network slice) that needs to perform a migration process of the user device, and the user needs to re-access. The first network slice, and then select the migration option, the management device can receive the user migration instruction; or the management device can be a policy control center, and the policy control center can determine the second network that needs to be adjusted according to the pre-configured policy. The slice, and the first network slice that needs to be re-accessed by the user equipment, to generate a user migration instruction; or the management device may also be an intelligent analysis center, and the intelligent analysis center may determine the first network slice and the second network according to the real-time load of the network. Slice to generate user migration instructions.

步骤602，管理设备向第二网络切片发送用户迁移通知。Step 602: The management device sends a user migration notification to the second network slice.

在实施中，管理设备可以根据用户迁移指令，向第二网络切片发送用户迁移通知，发送用户迁移通知的方式可以是多种多样的，本实施例提供了两种可行的处理方式。In an implementation, the management device may send a user migration notification to the second network slice according to the user migration instruction, and the manner of sending the user migration notification may be various. This embodiment provides two feasible processing manners.

方式一、向第二网络切片发送携带有第一网络切片的标识的用户迁移通知。Manner 1: Send a user migration notification carrying the identifier of the first network slice to the second network slice.

在实施中，管理设备可以获取用户迁移指令中的第一网络切片的标识，然后根据第一网络切片的标识，生成用户迁移通知，将该用户迁移通知发送给第二网络切片，以使第二网络切片将本地接入的用户设备迁移到第一网络切片中。另外，对于将第二网络切片中的部分用户设备迁移到第一网络切片的情况，管理设备还可以根据网络管理员的操作，或者预设的网络切片管理策略，确定需要进行迁移的用户设备，该用户迁移通知中还可以携带有需要进行迁移的用户设备的标识和/或用户设备的数量，该数量可以是迁移数目，也可以是百分比。In an implementation, the management device may obtain the identifier of the first network slice in the user migration instruction, and then generate a user migration notification according to the identifier of the first network slice, and send the user migration notification to the second network slice, so that the second The network slice migrates the locally accessed user equipment into the first network slice. In addition, for the case of migrating a part of the user equipment in the second network slice to the first network slice, the management device may further determine the user equipment that needs to be migrated according to the operation of the network administrator or the preset network slice management policy. The user migration notification may also carry the identifier of the user equipment and/or the number of user equipments that need to be migrated, and the number may be the number of migrations or a percentage.

方式二、根据预先存储的网络切片的标识和NSSAI的对应关系，确定第一网络切片的标识对应的NSSAI；向第二网络切片发送携带有第一网络切片的NSSAI的用户迁移通知。Manner 2: Determine, according to the correspondence between the identifier of the network slice and the NSSAI, the NSSAI corresponding to the identifier of the first network slice, and send the user migration notification of the NSSAI carrying the first network slice to the second network slice.

在实施中，管理设备中还可以预先存储网络切片的标识和NSSAI的对应关系，其中，不同的网络切片对应的NSSAI是不同的。该对应关系可以如表一所示：In an implementation, the mapping between the identifier of the network slice and the NSSAI may be pre-stored in the management device, where the NSSAI corresponding to the different network slices is different. The correspondence can be as shown in Table 1:

表一Table I

NSSAINSSAI	网络切片Network slice
11111111	AA
22222222	BB
33333333	CC

其中，A、B、C分别为网络切片的标识。Among them, A, B, and C are the identifiers of the network slices.

管理设备获取到第一网络切片的标识后，可以在该对应关系中，查找第一网络切片的标识对应的NSSAI，然后可以根据第一网络切片的标识对应的NSSAI，生成用户迁移通知，将该用户迁移通知发送给第二网络切片，以使第二网络切片将本地接入的用户设备迁移到第一网络切片中。另外，对于将第二网络切片中的部分用户设备迁移到第一网络切片的情况，管理设备还可以根据网络管理员的操作，或者预设的网络切片管理策略，确定需要进行迁移的用户设备，该用户迁移通知中还可以携带有需要进行迁移的用户设备的标识和/或用户设备的数量，该数量可以是迁移数目，也可以是百分比。After obtaining the identifier of the first network slice, the management device may search for the NSSAI corresponding to the identifier of the first network slice in the corresponding relationship, and then generate a user migration notification according to the NSSAI corresponding to the identifier of the first network slice, and The user migration notification is sent to the second network slice, so that the second network slice migrates the locally accessed user equipment into the first network slice. In addition, for the case of migrating a part of the user equipment in the second network slice to the first network slice, the management device may further determine the user equipment that needs to be migrated according to the operation of the network administrator or the preset network slice management policy. The user migration notification may also carry the identifier of the user equipment and/or the number of user equipments that need to be migrated, and the number may be the number of migrations or a percentage.

步骤603，第二网络切片接收管理设备发送的用户迁移通知。Step 603: The second network slice receives a user migration notification sent by the management device.

步骤604，第二网络切片获取第一网络切片对应的网络切片选择的辅助信息NSSAI。Step 604: The second network slice acquires the auxiliary information NSSAI selected by the network slice corresponding to the first network slice.

其中，第一网络切片是进行迁移的用户设备需要重新接入的网络切片.The first network slice is a network slice that the user equipment that needs to be re-accessed needs to be re-accessed.

在实施中，第二网络切片可以根据接收到的用户迁移通知，获取第一网络切片对应的NSSAI。该步骤可以有以下两种处理方式：In an implementation, the second network slice may acquire the NSSAI corresponding to the first network slice according to the received user migration notification. This step can be handled in two ways:

方式一、获取用户迁移通知中携带的第一网络切片对应的NSSAI。The first method is to obtain the NSSAI corresponding to the first network slice carried in the user migration notification.

在实施中，对于上述用户迁移通知中携带有第一网络切片的NSSAI的情况，第二网络切片可以对该用户迁移通知进行解析，获取第一网络切片的NSSAI。该NSSAI可以预先存储的第一网络切片的NSSAI，也可以是网络管理员新增加的第一网络切片的NSSAI。如果第二网络切片检测到本地存储的网络切片的标识和NSSAI的对应关系中，不存在该NSSAI，则可以将第一网络切片的标识和该NSSAI添加到该对应关系中。例如，本地存储的网络切片的标识和NSSAI的对应关系如上表一所示，第二网络切片接收到网络切片B对应的NSSAI 4444后，可以将B和4444添加到该对应关系表中，如图表二所示：In an implementation, for the case that the user migration notification carries the NSSAI of the first network slice, the second network slice may parse the user migration notification to obtain the NSSAI of the first network slice. The NSSAI may pre-store the NSSAI of the first network slice, or may be the NSSAI of the first network slice newly added by the network administrator. If the second network slice detects that the NSSAI does not exist in the correspondence between the identifier of the locally stored network slice and the NSSAI, the identifier of the first network slice and the NSSAI may be added to the corresponding relationship. For example, the mapping between the identifier of the locally stored network slice and the NSSAI is as shown in Table 1. After the second network slice receives the NSSAI 4444 corresponding to the network slice B, B and 4444 may be added to the corresponding relationship table, such as a chart. Second:

表二Table II

NSSAINSSAI	网络切片Network slice
11111111	AA
22222222	BB
33333333	CC
44444444	BB

或者，该NSSAI也可以为第二网络切片的NSSAI，则第二网络切片可以将表一中，该NSSAI对应的网络切片的标识，修改为第一网络切片的标识。例如，网络切片A接收到的用户迁移通知中，携带的第一网络切片B，以及NSSAI 1111,则可以将1111对应的网络切片的标识修改为B，如表三所示：Alternatively, the NSSAI may also be the NSSAI of the second network slice, and the second network slice may modify the identifier of the network slice corresponding to the NSSAI in Table 1 to the identifier of the first network slice. For example, in the user migration notification received by the network slice A, the first network slice B carried, and the NSSAI 1111, the identifier of the network slice corresponding to 1111 can be modified to B, as shown in Table 3:

表三Table 3

NSSAINSSAI	网络切片Network slice
11111111	BB
22222222	BB
33333333	CC

方式二、获取用户迁移通知中携带的第一网络切片的标识，根据预先存储的网络切片的标识和NSSAI的对应关系，确定第一网络切片的标识对应的NSSAI。Manner 2: The identifier of the first network slice carried in the user migration notification is obtained, and the NSSAI corresponding to the identifier of the first network slice is determined according to the correspondence between the identifier of the network slice and the NSSAI.

在实施中，对于用户迁移通知中携带有第一网络切片的标识的情况，第二网络切片中可以预先存储网络切片的标识和NSSAI的对应关系，该对应关系可以参照上述表一。第二网络切片可以对用户迁移通知进行解析，获取第一网络切片的标识，然后在该对应关系中，查找第一网络切片的标识对应的NSSAI。In the implementation, for the case that the identifier of the first network slice is carried in the user migration notification, the correspondence between the identifier of the network slice and the NSSAI may be pre-stored in the second network slice, and the correspondence may refer to Table 1 above. The second network slice may parse the user migration notification, obtain the identifier of the first network slice, and then, in the correspondence, search for the NSSAI corresponding to the identifier of the first network slice.

在实际中，如果第二网络切片需要被删除，则管理设备可以向第二网络切片发送携带有第一网络切片的标识的用户迁移通知，或者，可以向第二网络切片发送携带有第一网络切片的NSSAI的用户迁移通知，以使第二网络切片将本地的全部用户设备迁移到第一网络切片中。如果只是将第二网络切中的部分用户迁移到第一网络切片中，第二网络切片还需要继续使用，可以向第二网络切片发送携带有第一网络切片对应的新增的NSSAI。In practice, if the second network slice needs to be deleted, the management device may send a user migration notification carrying the identifier of the first network slice to the second network slice, or may send the first network to the second network slice. The user migration notification of the sliced NSSAI is such that the second network slice migrates all local user equipments into the first network slice. If only a part of the user in the second network is migrated to the first network slice, the second network slice needs to continue to be used, and the new NSSAI carrying the first network slice may be sent to the second network slice.

本步骤的处理可以由网络切片中的SSF来实现。The processing of this step can be implemented by the SSF in the network slice.

步骤605，第二网络切片向用户设备发送第一网络切片对应的NSSAI，第一网络切片对应的NSSAI用于指示用户设备接入第一网络切片。Step 605: The second network slice sends the NSSAI corresponding to the first network slice to the user equipment, and the NSSAI corresponding to the first network slice is used to indicate that the user equipment accesses the first network slice.

在实施中，第二网络切片向需要进行迁移的用户设备发送第一网络切片的NSSAI时，可以先确定该用户设备的状态信息。例如，该用户设备可以是正在请求接入第二网络切片的用户设备；可以是状态信息为空闲状态的用户设备；可以是状态信息为连接状态，且与第二网络切片正在进行数据传输的用户设备；状态信息为连接状态，且与第二网络切片未进行数据传输的用户设备。第二网络切片确定用户设备的状态信息后，可以采用该状态信息对应的发送方式，向用户设备第一网络切片的NSSAI。对于不同状态的用户设备，第二网络切片的发送方式可以是不同的，具体的处理过程会在图7ˉ图10的步骤中进行详细说明。In an implementation, when the second network slice sends the NSSAI of the first network slice to the user equipment that needs to be migrated, the status information of the user equipment may be determined first. For example, the user equipment may be a user equipment that is requesting access to the second network slice; may be a user equipment whose status information is in an idle state; may be a user whose status information is a connected status, and the data is being transmitted with the second network slice. Device; the status information is a connection status, and the user equipment that does not perform data transmission with the second network slice. After determining the status information of the user equipment, the second network slice may use the sending manner corresponding to the status information to the NSSAI of the first network slice of the user equipment. For the user equipment of different states, the sending manner of the second network slice may be different, and the specific processing procedure will be described in detail in the steps of FIG. 7 and FIG.

步骤606，用户设备接收第二网络切片发送的第一网络切片对应的NSSAI。Step 606: The user equipment receives the NSSAI corresponding to the first network slice sent by the second network slice.

在实施中，不同状态的用户设备接收NSSAI的处理过程可以是不同的，具体的处理过程会在图7ˉ图10的步骤中进行详细说明。In the implementation, the process of receiving the NSSAI by the user equipment of different states may be different, and the specific processing procedure is described in detail in the steps of FIG. 7 and FIG.

步骤607，用户设备基于第一网络切片对应的NSSAI，接入第一网络切片。Step 607: The user equipment accesses the first network slice based on the NSSAI corresponding to the first network slice.

其中，该接入请求可以是附着请求，也可以是位置更新请求。The access request may be an attach request or a location update request.

在实施中，用户设备接收到第一网络切片对应的NSSAI后，可以向第二网络切片发送携带有第一网络切片对应的NSSAI的接入请求，第二网络切片接收到该接入请求后，可以对该接入请求进行解析，获取其中的NSSAI，然后根据预先存储的网络切片的标识和NSSAI的对应关系，确定该NSSAI对应第一网络切片，进而可以将该接入请求转发给第一网络切片。In an implementation, after receiving the NSSAI corresponding to the first network slice, the user equipment may send an access request that carries the NSSAI corresponding to the first network slice to the second network slice, and after receiving the access request, the second network slice receives the access request. The access request may be parsed, and the NSSAI is obtained, and then the NSSAI is determined to correspond to the first network slice according to the pre-stored identifier of the network slice and the corresponding relationship of the NSSAI, and the access request may be forwarded to the first network. slice.

第一网络切片接收到该继而请求后，可以向第二网络切片发送上下文请求(即Context Request)消息，该Context Request消息中可以携带该用户设备的标识，第一网络切片接收到该Context Request消息后，可以根据该用户设备的标识，获取该用户设备的用户签约信息和安全上下文信息，然后向第一网络切片发送上下文响应(即Context Response)消息，该Context Response消息中可以携带有该用户设备的用户签约信息和安全上下文信息。第一网络切片接收到该Context Response消息后，可以基于该Context Response消息和预设的接入策略，对该用户设备进行接入处理，以使该用户设备接入到第一网络切片中。After receiving the request, the first network slice may send a context request (ie, Context Request) message to the second network slice, where the Context Request message may carry the identifier of the user equipment, and the first network slice receives the Context Request message. Then, the user subscription information and the security context information of the user equipment are obtained according to the identifier of the user equipment, and then a context response (ie, a Context Response) message is sent to the first network slice, where the Context Response message can carry the user equipment. User subscription information and security context information. After receiving the Context Response message, the first network slice may perform access processing on the user equipment based on the Context Response message and the preset access policy, so that the user equipment accesses the first network slice.

步骤608，第二网络切片向管理设备发送迁移完毕通知。Step 608: The second network slice sends a migration completion notification to the management device.

在实施中，第二网络切片接收到用户迁移通知后，可以开始计时，并向需要进行迁移的用户设备发送第一网络切片对应的NSSAI，当第二网络切片向需要进行迁移的全部用户设备发送完毕第一网络切片对应的NSSAI时，或者，当达到预设迁移时长时，第二网络切片可以向管理设备发送迁移完毕通知，以使管理设备进行后续处理。In an implementation, after receiving the user migration notification, the second network slice may start timing, and send the NSSAI corresponding to the first network slice to the user equipment that needs to be migrated, and send the second network slice to all user equipments that need to be migrated. When the NSSAI corresponding to the first network slice is completed, or when the preset migration duration is reached, the second network slice may send a migration completion notification to the management device, so that the management device performs subsequent processing.

步骤609，管理设备接收迁移完毕通知。In step 609, the management device receives the migration completion notification.

在实施中，管理设备可以接收到第二网络切片发送的迁移完毕通知，然后可以自动执行第二网络切片对应的调整处理，例如，可以删除第二网络切片，并可以通知SSF和第二网络切片释放资源。或者，管理设备也可以显示第二网络切片对应的迁移完毕通知，以便网络管理员进行下一步操作。In an implementation, the management device may receive the migration completion notification sent by the second network slice, and then automatically perform the adjustment process corresponding to the second network slice. For example, the second network slice may be deleted, and the SSF and the second network slice may be notified. Release resources. Alternatively, the management device may also display a migration completion notification corresponding to the second network slice, so that the network administrator performs the next operation.

其中，上述步骤606ˉ607，与步骤608ˉ609的处理顺序可以不分先后。The processing sequence of the above steps 606 ˉ 607 and 608 ˉ 609 may be in no particular order.

本实施例还提供了对于不同状态的用户设备发送第一网络切片的NSSAI，以使用户设备接入第一网络切片的处理过程。如图7所示，以用户设备为正在请求接入第二网络切片的用户设备为例，用户设备接入网络切片的处理过程可以包括以下几个步骤：The embodiment further provides a process for the user equipment of different states to send the NSSAI of the first network slice to enable the user equipment to access the first network slice. As shown in FIG. 7 , the user equipment is a user equipment that is requesting access to the second network slice. The process of the user equipment accessing the network slice may include the following steps:

步骤701，用户设备向第二网络切片发送携带有第二网络切片的NSSAI接入请求。Step 701: The user equipment sends an NSSAI access request carrying the second network slice to the second network slice.

在实施中，当用户设备需要接入第二网络切片时，用户设备可以向第二网络切片发送接入请求，该接入请求中可以携带有第二网络切片的NSSAI。In an implementation, when the user equipment needs to access the second network slice, the user equipment may send an access request to the second network slice, where the access request may carry the NSSAI of the second network slice.

步骤702，第二网络切片接收该用户设备发送的接入请求。Step 702: The second network slice receives an access request sent by the user equipment.

步骤703，第二网络切片向用户设备发送拒绝消息，拒绝消息中携带有第一网络切片的NSSAI。Step 703: The second network slice sends a reject message to the user equipment, where the reject message carries the NSSAI of the first network slice.

在实施中，如果第二网络切片在接收用户迁移通知后，接收到该用户设备发送的携带有第二网络切片的NSSAI的接入请求，则可以向该用户设备发送拒绝消息，该拒绝消息中携带有第一网络切片对应的NSSAI，以及拒绝原因值为“切片重选”。In an implementation, if the second network slice receives the access request of the NSSAI that is sent by the user equipment and carries the second network slice after receiving the user migration notification, the second network slice may send a reject message to the user equipment, where the reject message is sent. The NSSAI corresponding to the first network slice is carried, and the reject cause value is "slice reselection".

步骤704，用户设备接收第二网络切片发送的拒绝消息。Step 704: The user equipment receives the reject message sent by the second network slice.

在实施中，用户设备接收到该拒绝消息后，可以对该拒绝消息进行解析，获取第一网络切片对应的NSSAI，以及拒绝原因值“切片重选”。In an implementation, after receiving the reject message, the user equipment may parse the reject message, obtain an NSSAI corresponding to the first network slice, and reject the cause value “slice reselection”.

步骤705，用户设备向第二网络切片发送携带有第一网络切片的NSSAI的接入请求。Step 705: The user equipment sends an access request of the NSSAI carrying the first network slice to the second network slice.

在实施中，用户设备可以根据拒绝原因值“切片重选”和第一网络切片对应的NSSAI，获知自身需要接入第一网络切片，然后可以向第二网络切片携带第一网络切片对应的NSSAI的接入请求。本步骤中，接入请求可以发送给网络切片的SSF。In an implementation, the user equipment may learn that the user needs to access the first network slice according to the rejection reason value “slice reselection” and the NSSAI corresponding to the first network slice, and then may carry the NSSAI corresponding to the first network slice to the second network slice. Access request. In this step, the access request can be sent to the SSF of the network slice.

步骤706，第二网络切片接收用户设备发送的携带有第一网络切片的NSSAI的接入请求。Step 706: The second network slice receives an access request of the NSSAI carrying the first network slice sent by the user equipment.

在实施中，第二网络切片接收用户设备发送的接入请求后，可以对该接入请求进行解析，获取该接入请求中的NSSAI，如果该NSSAI是第一网络切片的NSSAI，则执行步骤707，如果不是，则可以执行步骤703。本步骤的处理可以由网络切片中的SSF来实现。In an implementation, after the second network slice receives the access request sent by the user equipment, the access request may be parsed to obtain the NSSAI in the access request. If the NSSAI is the NSSAI of the first network slice, the step is performed. 707, if not, step 703 can be performed. The processing of this step can be implemented by the SSF in the network slice.

步骤707，第二网络切片将该接入请求发送给第一网络切片。Step 707: The second network slice sends the access request to the first network slice.

该步骤的处理可以由网络切片中的SSF来实现，具体处理可以参照上述步骤607中的相关说明。The processing of this step can be implemented by the SSF in the network slice. For specific processing, refer to the related description in step 607 above.

步骤708，第一网络切片对用户设备进行接入处理，以使用户设备接入第一网络切片。Step 708: The first network slice performs access processing on the user equipment, so that the user equipment accesses the first network slice.

该步骤的具体处理可以参照上述步骤607中的相关说明。For the specific processing of this step, refer to the related description in the above step 607.

如图8所示，以用户设备的状态信息为空闲状态为例，用户设备接入网络切片的处理过程可以包括以下几个步骤：As shown in FIG. 8 , the process of the user equipment accessing the network slice may include the following steps:

步骤801，第二网络切片向用户设备发送寻呼消息。Step 801: The second network slice sends a paging message to the user equipment.

其中，寻呼消息中携带有第一网络切片对应的NSSAI，还可以携带有寻呼原因值“切片重选。The paging message carries the NSSAI corresponding to the first network slice, and may also carry the paging cause value “slice reselection.

在实施中，第二网络切片中可以预先设置用户设备的单次迁移数量(为了便于描述，可以称为第一数量)，该第一数量可以是迁移数目，也可以是百分比。第二网络切片可以基于第一数量，对状态信息为空闲状态的用户设备逐批发送寻呼消息，也即，第二网络切片每次可以在状态信息为空闲状态的用户设备中，确定第一数量的用户设备，向第一数量的用户设备群发送寻呼消息，直到向全部的需要迁移的空闲状态的用户设备都发送完寻呼消息为止。这样，对于空闲状态的用户设备，可以实现逐批发起寻呼，提高了迁移用户设备的效率。In an implementation, the number of single migrations of the user equipment may be preset in the second network slice (referred to as a first quantity for convenience of description), and the first quantity may be a migration number or a percentage. The second network slice may send the paging message batch by batch to the user equipment whose status information is the idle state, that is, the second network slice may determine the first time in the user equipment whose status information is the idle state. The number of user equipments sends a paging message to the first number of user equipment groups until the paging message is sent to all user equipments in the idle state that need to be migrated. In this way, for the user equipment in the idle state, paging can be performed in a wholesale manner, and the efficiency of migrating the user equipment is improved.

步骤802，用户设备接收第二网络切片发送的寻呼消息，寻呼消息中携带有第一网络切片对应的NSSAI。Step 802: The user equipment receives the paging message sent by the second network slice, where the paging message carries the NSSAI corresponding to the first network slice.

在实施中，用户设备可以接收该寻呼消息，并对该寻呼消息进行解析，获取第一网络切片对应的NSSAI，以及寻呼原因值“切片重选”。In an implementation, the user equipment may receive the paging message, and parse the paging message, and obtain an NSSAI corresponding to the first network slice, and a paging cause value “slice reselection”.

步骤803，用户设备向第二网络切片发送携带有第一网络切片对应的NSSAI的接入请求。Step 803: The user equipment sends an access request that carries the NSSAI corresponding to the first network slice to the second network slice.

在实施中，用户设备可以根据寻呼原因值“切片重选”和第一网络切片对应的NSSAI，获知自身需要接入第一网络切片，然后可以向第二网络切片携带第一网络切片对应的NSSAI的接入请求。本步骤中，接入请求可以发送给网络切片的SSF。In an implementation, the user equipment may learn that the user needs to access the first network slice according to the paging cause value “slice reselection” and the NSSAI corresponding to the first network slice, and then may carry the first network slice corresponding to the second network slice. NSSAI access request. In this step, the access request can be sent to the SSF of the network slice.

步骤804，第二网络切片接收用户设备发送的携带有第一网络切片对应的NSSAI的接入请求。Step 804: The second network slice receives an access request that is sent by the user equipment and carries the NSSAI corresponding to the first network slice.

该步骤的处理可以由网络切片中的SSF来实现，具体处理可以参照上述步骤706中的相关说明。The processing of this step can be implemented by the SSF in the network slice. For specific processing, refer to the related description in step 706 above.

步骤805，第二网络切片将接入请求发送给第一网络切片。Step 805: The second network slice sends an access request to the first network slice.

步骤806，第一网络切片对用户设备进行接入处理，以使用户设备接入第一网络切片。Step 806: The first network slice performs access processing on the user equipment, so that the user equipment accesses the first network slice.

如图9所示，以用户设备的状态信息为连接状态，且用户设备与当前接入的第二网络切片未进行数据传输为例，用户设备接入网络切片的处理过程可以包括以下几个步骤：As shown in FIG. 9 , the process of the user equipment accessing the network slice may include the following steps, where the state information of the user equipment is the connection state, and the user equipment and the currently accessed second network slice are not subjected to data transmission. :

步骤901，第二网络切片向第一网络切片发送对应用户设备的临时标识请求。Step 901: The second network slice sends a temporary identifier request corresponding to the user equipment to the first network slice.

在实施中，第二网络切片获取到第一网络切片的NSSAI后，可以向第一网络切片发送临时标识请求，该临时标识请求中可以携带有需要迁移的用户设备的标识，该用户设备的标识的数目可以是一个，也可以是多个。In an implementation, after acquiring the NSSAI of the first network slice, the second network slice may send a temporary identifier request to the first network slice, where the temporary identifier request may carry the identifier of the user equipment that needs to be migrated, and the identifier of the user equipment The number can be one or more.

步骤902，第一网络切片向第二网络切片发送临时标识。Step 902: The first network slice sends a temporary identifier to the second network slice.

在实施中，第一网络切片接收到临时标识请求后，可以对该临时标识请求进行解析，获取其中的用户设备的标识，然后为该用户设备分配临时标识。对于临时标识请求中携带多个用户设备的标识的情况，第一网络切片可以分别为每个用户设备分配临时标识，然后，第一网络切片向第二网络切片发送各用户设备对应的临时标识。另外，在本实施例所涉及的场景下，第一网络切片可以在步骤902后，获取用户设备的用户签约信息和安全上下文信息，也可以在接收到接入请求后，获取用户设备的用户签约信息和安全上下文信息，具体的处理过程可以参照上述步骤607，不再赘述。In an implementation, after receiving the temporary identifier request, the first network slice may parse the temporary identifier request, obtain the identifier of the user equipment, and then allocate the temporary identifier to the user equipment. For the case where the identifier of the plurality of user equipments is carried in the temporary identifier request, the first network slice may allocate a temporary identifier to each user equipment, and then the first network slice sends the temporary identifier corresponding to each user equipment to the second network slice. In addition, in the scenario of the embodiment, the first network slice may obtain the user subscription information and the security context information of the user equipment after the step 902, or obtain the user subscription of the user equipment after receiving the access request. For information and security context information, refer to step 607 above for specific processing, and details are not described herein.

步骤903，第二网络切片接收第一网络切片发送的临时标识。Step 903: The second network slice receives the temporary identifier sent by the first network slice.

步骤904，第二网络切片向用户设备发送临时标识更新消息。Step 904: The second network slice sends a temporary identity update message to the user equipment.

其中，临时标识更新消息中可以携带有该用户设备对应的临时标识。The temporary identifier update message may carry the temporary identifier corresponding to the user equipment.

在实施中，第二网络切片可以对用户设备逐批发送临时标识更新消息，以提高迁移用户设备的效率，具体处理可以参照上述步骤801，不再赘述。In an implementation, the second network segment may send the temporary identifier update message to the user equipment batch by batch to improve the efficiency of the user equipment. For the specific processing, refer to step 801 above, and details are not described herein.

步骤905，用户设备接收第二网络切片发送的临时标识更新消息。Step 905: The user equipment receives the temporary identifier update message sent by the second network slice.

在实施中，用户设备可以接收该临时标识更新消息，并对该临时标识更新消息进行解析，获取第一网络切片对应的NSSAI和临时标识。In an implementation, the user equipment may receive the temporary identifier update message, and parse the temporary identifier update message to obtain the NSSAI and the temporary identifier corresponding to the first network slice.

步骤906，用户设备向第二网络切片发送临时标识符重分配响应消息。Step 906: The user equipment sends a temporary identifier re-distribution response message to the second network slice.

在实施中，用户设备接收到临时标识更新消息后，可以向第二网络切片发送临时标识符重分配响应消息，以使第二网络切片获知该用户设备接收到该临时标识更新消息。In an implementation, after receiving the temporary identifier update message, the user equipment may send a temporary identifier re-distribution response message to the second network slice, so that the second network slice learns that the user equipment receives the temporary identifier update message.

步骤907，用户设备向第二网络切片发送携带有第一网络切片对应的NSSAI的接入请求。Step 907: The user equipment sends an access request that carries the NSSAI corresponding to the first network slice to the second network slice.

在实施中，当该用户设备需要进行业务时，该用户设备可以根据第一网络切片对应的NSSAI，向第二网络切片携带第一网络切片对应的NSSAI的接入请求。本步骤中，接入请求可以发送给网络切片的SSF。In an implementation, when the user equipment needs to perform a service, the user equipment may, according to the NSSAI corresponding to the first network slice, carry an access request of the NSSAI corresponding to the first network slice to the second network slice. In this step, the access request can be sent to the SSF of the network slice.

步骤908，第二网络切片接收用户设备发送的携带有第一网络切片对应的NSSAI的接入请求。Step 908: The second network slice receives an access request that is sent by the user equipment and carries the NSSAI corresponding to the first network slice.

步骤909，第二网络切片将接入请求发送给第一网络切片。Step 909: The second network slice sends an access request to the first network slice.

步骤910，第一网络切片对用户设备进行接入处理，以使用户设备接入第一网络切片。Step 910: The first network slice performs access processing on the user equipment, so that the user equipment accesses the first network slice.

该步骤的具体处理可以参照上述步骤607中的相关说明。另外，上述第一网络切片为用户设备分配临时标识后，SSF可记录该临时标识与第一网络切片的对应关系。该用户设备接入第一网络切片后，可以与第一网络切片进行数据传输，并将传输数据的消息(可称为数据消息)中添加该临时标识，将该数据消息发送给SSF，SSF接收到该数据消息后，可以根据该临时标识，将该数据消息发送给第一网络切片，实现该用户设备与第一网络切片的数据传输。For the specific processing of this step, refer to the related description in the above step 607. In addition, after the first network slice allocates a temporary identifier to the user equipment, the SSF may record a correspondence between the temporary identifier and the first network slice. After the user equipment accesses the first network slice, the user equipment may perform data transmission with the first network slice, and add the temporary identifier to the message (which may be referred to as a data message) for transmitting data, and send the data message to the SSF, and the SSF receives the data message. After the data message is sent, the data message may be sent to the first network slice according to the temporary identifier, and data transmission between the user equipment and the first network slice is implemented.

如图10所示，以用户设备的状态信息为连接状态，且用户设备与当前接入的第二网络切片正在进行数据传输为例，用户设备接入网络切片的处理过程可以包括以下几个步骤：As shown in FIG. 10, the process of the user equipment accessing the network slice may include the following steps, where the user equipment is in the connection state, and the user equipment and the currently accessed second network slice are in the process of data transmission. :

步骤1001，第二网络切片向用户设备发送连接中断通知。Step 1001: The second network slice sends a connection interruption notification to the user equipment.

其中，连接中断通知中携带有第一网络切片对应的NSSAI，还可以携带有连接中断原因值“切片重选”。The connection interruption notification carries the NSSAI corresponding to the first network slice, and may also carry the connection interruption cause value “slice reselection”.

在实施中，第二网络切片中可以对状态信息为连接状态，且用户设备与当前接入的第二网络切片正在进行数据传输的用户设备逐批发送寻呼消息，以提高迁移用户设备的效率，具体处理可以参照上述步骤801，不再赘述。In an implementation, the second network slice may be configured to be in a connected state, and the user equipment sends a paging message to the user equipment that is currently transmitting the second network slice to perform data transmission, to improve the efficiency of migrating the user equipment. For specific processing, refer to step 801 above, and details are not described herein.

步骤1002，用户设备接收第二网络切片发送的连接中断通知。Step 1002: The user equipment receives a connection interruption notification sent by the second network slice.

在实施中，用户设备可以接收该连接中断通知，并对该连接中断通知进行解析，获取第一网络切片对应的NSSAI，以及连接中断原因值“切片重选”。In an implementation, the user equipment may receive the connection interruption notification, and parse the connection interruption notification, and obtain an NSSAI corresponding to the first network slice, and a connection interruption cause value “slice reselection”.

步骤1003，用户设备向第二网络切片发送携带有第一网络切片对应的NSSAI的接入请求。Step 1003: The user equipment sends an access request that carries the NSSAI corresponding to the first network slice to the second network slice.

在实施中，用户设备可以根据连接中断原因值“切片重选”和第一网络切片对应的NSSAI，获知自身需要接入第一网络切片，向第二网络切片携带第一网络切片对应的NSSAI的接入请求。本步骤中，接入请求可以发送给网络切片的SSF。In an implementation, the user equipment may be configured to access the first network slice according to the connection interruption cause value “slice reselection” and the NSSAI corresponding to the first network slice, and carry the NSSAI corresponding to the first network slice to the second network slice. Access request. In this step, the access request can be sent to the SSF of the network slice.

步骤1004，第二网络切片接收用户设备发送的携带有第一网络切片对应的NSSAI的接入请求。Step 1004: The second network slice receives an access request that is sent by the user equipment and carries the NSSAI corresponding to the first network slice.

步骤1005，第二网络切片将接入请求发送给第一网络切片。Step 1005: The second network slice sends an access request to the first network slice.

步骤1006，第一网络切片对用户设备进行接入处理，以使用户设备接入第一网络切片。Step 1006: The first network slice performs access processing on the user equipment, so that the user equipment accesses the first network slice.

图11是本发明实施例提供的一种接入网络切片的装置的结构方框图，该装置可以通过软件、硬件或者两者的结合实现成为网络切片的部分或者全部。FIG. 11 is a structural block diagram of an apparatus for accessing a network slice according to an embodiment of the present invention. The apparatus may be implemented as part or all of a network slice by software, hardware, or a combination of both.

该装置包括：收发单元1110和获取单元1120。The device includes a transceiver unit 1110 and an acquisition unit 1120.

收发单元1110用于执行上述实施例中的步骤603、步骤605、步骤608、步骤702、步骤703、步骤706、步骤707、步骤801、步骤804、步骤805、步骤901、步骤903、步骤904、步骤908、步骤909、步骤1001、步骤1004和步骤1005及其可选方案。The transceiver unit 1110 is configured to perform step 603, step 605, step 608, step 702, step 703, step 706, step 707, step 801, step 804, step 805, step 901, step 903, step 904, Step 908, step 909, step 1001, step 1004, and step 1005, and alternatives thereto.

获取单元1120用于执行上述实施例中的步骤604及其可选方案。The obtaining unit 1120 is configured to perform step 604 and its alternatives in the above embodiment.

图12是本发明实施例提供的一种接入网络切片的装置的结构方框图，该装置可以通过软件、硬件或者两者的结合实现成为用户设备的部分或者全部。FIG. 12 is a structural block diagram of an apparatus for accessing a network slice according to an embodiment of the present invention. The apparatus may be implemented as part or all of a user equipment by software, hardware, or a combination of both.

该装置包括：收发单元1210和处理单元1220。The device includes a transceiver unit 1210 and a processing unit 1220.

收发单元1210用于执行上述实施例中的步骤606、步骤701、步骤704、步骤705、步骤802、步骤803、步骤905ˉ步骤907、步骤1002和步骤1003及其可选方案。The transceiver unit 1210 is configured to perform step 606, step 701, step 704, step 705, step 802, step 803, step 905, step 907, step 1002, and step 1003 and other alternatives in the foregoing embodiments.

处理单元1220用于执行上述实施例中的步骤607及其可选方案。The processing unit 1220 is configured to perform step 607 and its alternatives in the foregoing embodiments.

图13是本发明实施例提供的一种接入网络切片的装置的结构方框图，该装置可以通过软件、硬件或者两者的结合实现成为管理设备的部分或者全部。FIG. 13 is a structural block diagram of an apparatus for accessing a network slice according to an embodiment of the present invention. The apparatus may be implemented as part or all of a management device by software, hardware, or a combination of both.

该装置包括：收发单元1310。The device includes a transceiver unit 1310.

收发单元1310用于执行上述实施例中的步骤601、步骤602和步骤609及其可选方案。The transceiver unit 1310 is configured to perform step 601, step 602, and step 609 in the foregoing embodiments, and an alternative thereof.

该装置还可以包括删除单元，删除单元用于执行上述实施例中的步骤609及其可选方案。The apparatus may further comprise a deletion unit for performing step 609 and its alternatives in the above embodiments.

本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

以上所述仅为本公开的可选实施例，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。The above description is only an alternative embodiment of the present disclosure, and is not intended to limit the disclosure, and any modifications, equivalents, improvements, etc., made within the spirit and principles of the present disclosure should be included in the protection of the present disclosure. Within the scope.

Claims

一种接入网络切片的方法，其特征在于，所述方法包括：A method for accessing a network slice, the method comprising:

接收管理设备发送的用户迁移通知；Receiving a user migration notification sent by the management device;

获取第一网络切片对应的网络切片选择的辅助信息NSSAI，所述第一网络切片是进行迁移的用户设备需要重新接入的网络切片；Acquiring the auxiliary information NSSAI of the network slice selected by the first network slice, where the first network slice is a network slice that the user equipment that needs to be re-accessed needs to re-access;

向所述用户设备发送所述第一网络切片对应的NSSAI，所述第一网络切片对应的NSSAI用于指示所述用户设备接入所述第一网络切片。Sending, to the user equipment, an NSSAI corresponding to the first network slice, where the NSSAI corresponding to the first network slice is used to indicate that the user equipment accesses the first network slice.
根据权利要求1所述的方法，其特征在于，所述获取所述第一网络切片对应的NSSAI，包括：The method according to claim 1, wherein the acquiring the NSSAI corresponding to the first network slice comprises:

获取所述用户迁移通知中携带的所述第一网络切片对应的NSSAI；或者Obtaining an NSSAI corresponding to the first network slice carried in the user migration notification; or

获取所述用户迁移通知中携带的所述第一网络切片的标识，根据预先存储的网络切片的标识和NSSAI的对应关系，确定所述第一网络切片的标识对应的NSSAI。Obtaining an identifier of the first network slice that is carried in the user migration notification, and determining an NSSAI corresponding to the identifier of the first network slice according to the correspondence between the identifier of the network slice and the NSSAI.
根据权利要求1或2所述的方法，其特征在于，所述向所述用户设备发送所述第一网络切片对应的NSSAI，包括：The method according to claim 1 or 2, wherein the sending the NSSAI corresponding to the first network slice to the user equipment comprises:

如果在接收到所述用户迁移通知后，接收到所述用户设备发送的接入请求，则向所述用户设备发送拒绝消息，所述拒绝消息中携带有所述第一网络切片对应的NSSAI。And receiving, after receiving the user migration notification, the access request sent by the user equipment, sending a reject message to the user equipment, where the reject message carries the NSSAI corresponding to the first network slice.
根据权利要求1或2所述的方法，其特征在于，所述用户设备的状态信息为空闲状态，所述向所述用户设备发送所述第一网络切片对应的NSSAI，包括：The method according to claim 1 or 2, wherein the state information of the user equipment is an idle state, and the sending the NSSAI corresponding to the first network slice to the user equipment comprises:

向所述用户设备发送寻呼消息，所述寻呼消息中携带有所述第一网络切片对应的NSSAI。Sending a paging message to the user equipment, where the paging message carries an NSSAI corresponding to the first network slice.
根据权利要求1或2所述的方法，其特征在于，所述用户设备的状态信息为连接状态，且所述用户设备与当前接入的第二网络切片正在进行数据传输，所述向所述用户设备发送所述第一网络切片对应的NSSAI，包括：The method according to claim 1 or 2, wherein the state information of the user equipment is a connection state, and the user equipment is performing data transmission with the currently accessed second network slice, the Sending, by the user equipment, the NSSAI corresponding to the first network slice, including:

向所述用户设备发送连接中断通知，所述连接中断通知中携带有所述第一网络切片对应的NSSAI。Sending a connection interruption notification to the user equipment, where the connection interruption notification carries an NSSAI corresponding to the first network slice.
根据权利要求1或2所述的方法，其特征在于，所述用户设备的状态信息为连接状态，且所述用户设备与当前接入的第二网络切片未进行数据传输，所述向所述用户设备发送所述第一网络切片对应的NSSAI，包括：The method according to claim 1 or 2, wherein the state information of the user equipment is a connection state, and the user equipment does not perform data transmission with the currently accessed second network slice, the Sending, by the user equipment, the NSSAI corresponding to the first network slice, including:

向所述第一网络切片发送对应所述用户设备的临时标识请求，以使所述第一网络切片为所述用户设备分配临时标识；Sending a temporary identification request corresponding to the user equipment to the first network slice, so that the first network slice allocates a temporary identifier to the user equipment;

接收所述第一网络切片发送的临时标识；Receiving a temporary identifier sent by the first network slice;

向所述用户设备发送临时标识更新消息，所述临时标识更新消息中携带有所述第一网络切片对应的NSSAI和所述临时标识。Sending a temporary identifier update message to the user equipment, where the temporary identifier update message carries the NSSAI corresponding to the first network slice and the temporary identifier.
根据权利要求1所述的方法，其特征在于，所述向所述用户设备发送所述第一网络切片对应的NSSAI之后，还包括：The method according to claim 1, wherein after the sending the NSSAI corresponding to the first network slice to the user equipment, the method further includes:

接收所述用户设备发送的携带有所述第一网络切片对应的NSSAI的接入请求；Receiving, by the user equipment, an access request that carries an NSSAI corresponding to the first network slice;

将所述接入请求发送给所述第一网络切片，以使所述第一网络切片对所述用户设备进行接入处理。And sending the access request to the first network slice, so that the first network slice performs access processing on the user equipment.
根据权利要求1所述的方法，其特征在于，所述方法还包括：The method of claim 1 further comprising:

向需要进行迁移的全部用户设备发送所述第一网络切片对应的NSSAI后，向所述管理设备发送迁移完毕通知；或者After sending the NSSAI corresponding to the first network slice to all user equipments that need to be migrated, sending a migration completion notification to the management device; or

当达到预设迁移时长时，向所述管理设备发送迁移完毕通知。When the preset migration duration is reached, a migration completion notification is sent to the management device.
一种接入网络切片的方法，其特征在于，所述方法包括：A method for accessing a network slice, the method comprising:

接收第二网络切片发送的第一网络切片对应的网络切片选择的辅助信息NSSAI，所述第一网络切片对应的NSSAI用于指示用户设备接入所述第一网络切片；Receiving, by the second network slice, the network slice selected auxiliary information NSSAI corresponding to the first network slice, where the NSSAI corresponding to the first network slice is used to indicate that the user equipment accesses the first network slice;

基于所述第一网络切片对应的NSSAI，接入所述第一网络切片。And accessing the first network slice based on the NSSAI corresponding to the first network slice.
根据权利要求9所述的方法，其特征在于，所述接收第二网络切片发送的所述第一网络切片对应的NSSAI，包括：The method according to claim 9, wherein the receiving the NSSAI corresponding to the first network slice sent by the second network slice comprises:

向所述第二网络切片发送接入请求；Sending an access request to the second network slice;

接收所述第二网络切片发送的拒绝消息，所述拒绝消息中携带有所述第一网络切片对应的NSSAI。Receiving a reject message sent by the second network slice, where the reject message carries an NSSAI corresponding to the first network slice.
根据权利要求9所述的方法，其特征在于，所述用户设备的状态信息为空闲状态，所述接收第二网络切片发送的所述第一网络切片对应的NSSAI，包括：The method according to claim 9, wherein the status information of the user equipment is an idle state, and the receiving the NSSAI corresponding to the first network slice sent by the second network slice comprises:

接收所述第二网络切片发送的寻呼消息，所述寻呼消息中携带有所述第一网络切片对应的NSSAI。Receiving a paging message sent by the second network slice, where the paging message carries an NSSAI corresponding to the first network slice.
根据权利要求9所述的方法，其特征在于，所述用户设备的状态信息为连接状态，且所述用户设备与所述第二网络切片正在进行数据传输，所述接收第二网络切片发送的所述第一网络切片对应的NSSAI，包括：The method according to claim 9, wherein the status information of the user equipment is a connection status, and the user equipment and the second network slice are performing data transmission, and the receiving the second network slice is sent. The NSSAI corresponding to the first network slice includes:

接收所述第二网络切片发送的连接中断通知，所述连接中断通知中携带有所述第一网络切片对应的NSSAI。Receiving a connection interruption notification sent by the second network slice, where the connection interruption notification carries an NSSAI corresponding to the first network slice.
根据权利要求9所述的方法，其特征在于，所述用户设备的状态信息为连接状态，且所述用户设备与所述第二网络切片未进行数据传输，所述接收第二网络切片发送的所述第一网络切片对应的NSSAI，包括：The method according to claim 9, wherein the state information of the user equipment is a connection state, and the user equipment and the second network slice do not perform data transmission, and the receiving the second network slice is sent. The NSSAI corresponding to the first network slice includes:

接收所述第二网络切片发送的临时标识更新消息，所述临时标识更新消息中携带有所述第一网络切片对应的NSSAI和所述第一网络切片为所述用户设备分配的临时标识；And receiving, by the second network slice, a temporary identifier update message, where the temporary identifier update message carries the NSSAI corresponding to the first network slice and the temporary identifier that is allocated by the first network slice to the user equipment;

所述方法还包括：The method further includes:

基于所述临时标识与所述第一网络切片进行数据传输。Data transmission is performed with the first network slice based on the temporary identifier.
根据权利要求9所述的方法，其特征在于，所述基于所述第一网络切片对应的NSSAI，接入所述第一网络切片，包括：The method according to claim 9, wherein the accessing the first network slice based on the NSSAI corresponding to the first network slice comprises:

向所述第二网络切片发送携带有所述第一网络切片对应的NSSAI的接入请求，以使所述第二网络切片将所述接入请求发送给所述第一网络切片，由所述第一网络切片对所述用户设备进行接入处理；Transmitting, to the second network slice, an access request carrying an NSSAI corresponding to the first network slice, so that the second network slice sends the access request to the first network slice, by The first network slice performs access processing on the user equipment;

接入所述第一网络切片。Accessing the first network slice.
一种接入网络切片的方法，其特征在于，所述方法包括：A method for accessing a network slice, the method comprising:

接收用户迁移指令，所述用户迁移指令中携带有所述需要进行用户设备的迁移处理的第二网络切片的标识，以及所述用户设备需要重新接入的第一网络切片的标识；Receiving a user migration instruction, where the user migration instruction carries an identifier of the second network slice that needs to perform the migration process of the user equipment, and an identifier of the first network slice that the user equipment needs to re-access;

向所述第二网络切片发送用户迁移通知，以使所述第二网络切片将所述用户设备迁移到所述第一网络切片中。Transmitting a user migration notification to the second network slice to cause the second network slice to migrate the user equipment into the first network slice.
根据权利要求15所述的方法，其特征在于，所述向所述第二网络切片发送用户迁移通知，包括：The method according to claim 15, wherein the sending the user migration notification to the second network slice comprises:

向所述第二网络切片发送携带有所述第一网络切片的标识的用户迁移通知；或者，Transmitting, to the second network slice, a user migration notification carrying the identifier of the first network slice; or

根据预先存储的网络切片的标识和NSSAI的对应关系，确定所述第一网络切片的标识对应的NSSAI；Determining, according to the correspondence between the identifier of the network slice and the NSSAI, the NSSAI corresponding to the identifier of the first network slice;

向所述第二网络切片发送携带有所述第一网络切片的NSSAI的用户迁移通知。Transmitting a user migration notification of the NSSAI carrying the first network slice to the second network slice.
根据权利要求15所述的方法，其特征在于，所述方法还包括：The method of claim 15 wherein the method further comprises:

当接收到所述第二网络切片发送的迁移完毕通知时，删除所述第二网络切片。And deleting the second network slice when receiving the migration completion notification sent by the second network slice.
一种接入网络切片的装置，其特征在于，所述装置包括：An apparatus for accessing a network slice, wherein the apparatus comprises:

收发单元，用于接收管理设备发送的用户迁移通知；a transceiver unit, configured to receive a user migration notification sent by the management device;

获取单元，用于获取第一网络切片对应的网络切片选择的辅助信息NSSAI，所述第一网络切片是进行迁移的用户设备需要重新接入的网络切片；An acquiring unit, configured to acquire the auxiliary information NSSAI of the network slice selected by the first network slice, where the first network slice is a network slice that needs to be re-accessed by the user equipment that performs the migration;

所述收发单元，还用于向所述用户设备发送所述第一网络切片对应的NSSAI，所述第一网络切片对应的NSSAI用于指示所述用户设备接入所述第一网络切片。The transceiver unit is further configured to send the NSSAI corresponding to the first network slice to the user equipment, where the NSSAI corresponding to the first network slice is used to indicate that the user equipment accesses the first network slice.
根据权利要求18所述的装置，其特征在于，所述获取单元，还用于：The device according to claim 18, wherein the obtaining unit is further configured to:

获取所述用户迁移通知中携带的所述第一网络切片对应的NSSAI；或者Obtaining an NSSAI corresponding to the first network slice carried in the user migration notification; or

获取所述用户迁移通知中携带的所述第一网络切片的标识，根据预先存储的网络切片的标识和NSSAI的对应关系，确定所述第一网络切片的标识对应的NSSAI。Obtaining an identifier of the first network slice that is carried in the user migration notification, and determining an NSSAI corresponding to the identifier of the first network slice according to the correspondence between the identifier of the network slice and the NSSAI.
根据权利要求18或19所述的装置，其特征在于，所述收发单元，还用于：The device according to claim 18 or 19, wherein the transceiver unit is further configured to:

如果在接收到所述用户迁移通知后，接收到所述用户设备发送的接入请求，则向所述用户设备发送拒绝消息，所述拒绝消息中携带有所述第一网络切片对应的NSSAI。And receiving, after receiving the user migration notification, the access request sent by the user equipment, sending a reject message to the user equipment, where the reject message carries the NSSAI corresponding to the first network slice.
根据权利要求18或19所述的装置，其特征在于，所述用户设备的状态信息为空闲状态，所述收发单元，还用于：The device according to claim 18 or 19, wherein the state information of the user equipment is an idle state, and the transceiver unit is further configured to:

向所述用户设备发送寻呼消息，所述寻呼消息中携带有所述第一网络切片对应的NSSAI。Sending a paging message to the user equipment, where the paging message carries an NSSAI corresponding to the first network slice.
根据权利要求18或19所述的装置，其特征在于，所述用户设备的状态信息为连接状态，且所述用户设备与当前接入的第二网络切片正在进行数据传输，所述收发单元，还用于：The device according to claim 18 or 19, wherein the state information of the user equipment is a connection state, and the user equipment is transmitting data with the currently accessed second network slice, the transceiver unit, Also used for:

向所述用户设备发送连接中断通知，所述连接中断通知中携带有所述第一网络切片对应的NSSAI。Sending a connection interruption notification to the user equipment, where the connection interruption notification carries an NSSAI corresponding to the first network slice.
根据权利要求18或19所述的装置，其特征在于，所述用户设备的状态信息为连接状态，且所述用户设备与当前接入的第二网络切片未进行数据传输，所述收发单元，还用于：The device according to claim 18 or 19, wherein the state information of the user equipment is a connection state, and the user equipment does not perform data transmission with the currently accessed second network slice, the transceiver unit, Also used for:

向所述第一网络切片发送对应所述用户设备的临时标识请求，以使所述第一网络切片为所述用户设备分配临时标识；Sending a temporary identification request corresponding to the user equipment to the first network slice, so that the first network slice allocates a temporary identifier to the user equipment;

接收所述第一网络切片发送的临时标识；Receiving a temporary identifier sent by the first network slice;

向所述用户设备发送临时标识更新消息，所述临时标识更新消息中携带有所述第一网络切片对应的NSSAI和所述临时标识。Sending a temporary identifier update message to the user equipment, where the temporary identifier update message carries the NSSAI corresponding to the first network slice and the temporary identifier.
根据权利要求18所述的装置，其特征在于，所述收发单元，还用于：The device according to claim 18, wherein the transceiver unit is further configured to:

接收所述用户设备发送的携带有所述第一网络切片对应的NSSAI的接入请求；Receiving, by the user equipment, an access request that carries an NSSAI corresponding to the first network slice;

将所述接入请求发送给所述第一网络切片，以使所述第一网络切片对所述用户设备进行接入处理。Sending the access request to the first network slice, so that the first network slice performs access processing on the user equipment.
根据权利要求18所述的装置，其特征在于，所述收发单元，还用于：The device according to claim 18, wherein the transceiver unit is further configured to:

向需要进行迁移的全部用户设备发送所述第一网络切片对应的NSSAI后，向所述管理设备发送迁移完毕通知；或者After sending the NSSAI corresponding to the first network slice to all user equipments that need to be migrated, sending a migration completion notification to the management device; or

当达到预设迁移时长时，向所述管理设备发送迁移完毕通知。When the preset migration duration is reached, a migration completion notification is sent to the management device.
一种接入网络切片的装置，其特征在于，所述装置包括：An apparatus for accessing a network slice, wherein the apparatus comprises:

收发单元，用于接收第二网络切片发送的第一网络切片对应的网络切片选择的辅助信息NSSAI，所述第一网络切片对应的NSSAI用于指示用户设备接入所述第一网络切片；The transceiver unit is configured to receive the auxiliary information NSSAI of the network slice selected by the first network slice sent by the second network slice, where the NSSAI corresponding to the first network slice is used to indicate that the user equipment accesses the first network slice;

处理单元，用于基于所述第一网络切片对应的NSSAI，接入所述第一网络切片。And a processing unit, configured to access the first network slice based on the NSSAI corresponding to the first network slice.
根据权利要求26所述的装置，其特征在于，所述收发单元，还用于：The device according to claim 26, wherein the transceiver unit is further configured to:

向所述第二网络切片发送接入请求；Sending an access request to the second network slice;

接收所述第二网络切片发送的拒绝消息，所述拒绝消息中携带有所述第一网络切片对应的NSSAI。Receiving a reject message sent by the second network slice, where the reject message carries an NSSAI corresponding to the first network slice.
根据权利要求26所述的装置，其特征在于，所述用户设备的状态信息为空闲状态，所述收发单元，还用于：The device according to claim 26, wherein the state information of the user equipment is an idle state, and the transceiver unit is further configured to:

接收所述第二网络切片发送的寻呼消息，所述寻呼消息中携带有所述第一网络切片对应的NSSAI。Receiving a paging message sent by the second network slice, where the paging message carries an NSSAI corresponding to the first network slice.
根据权利要求26所述的装置，其特征在于，所述用户设备的状态信息为连接状态，且所述用户设备与所述第二网络切片正在进行数据传输，所述收发单元，还用于：The device according to claim 26, wherein the state information of the user equipment is a connection state, and the user equipment and the second network slice are performing data transmission, and the transceiver unit is further configured to:

接收所述第二网络切片发送的连接中断通知，所述连接中断通知中携带有所述第一网络切片对应的NSSAI。Receiving a connection interruption notification sent by the second network slice, where the connection interruption notification carries an NSSAI corresponding to the first network slice.
根据权利要求26所述的装置，其特征在于，所述用户设备的状态信息为连接状态，且所述用户设备与所述第二网络切片未进行数据传输，所述收发单元，还用于：The device according to claim 26, wherein the state information of the user equipment is a connection state, and the user equipment and the second network slice do not perform data transmission, and the transceiver unit is further configured to:

接收所述第二网络切片发送的临时标识更新消息，所述临时标识更新消息中携带有所述第一网络切片对应的NSSAI和所述第一网络切片为所述用户设备分配的临时标识；And receiving, by the second network slice, a temporary identifier update message, where the temporary identifier update message carries the NSSAI corresponding to the first network slice and the temporary identifier that is allocated by the first network slice to the user equipment;

所述处理单元，还用于：The processing unit is further configured to:

基于所述临时标识与所述第一网络切片进行数据传输。Data transmission is performed with the first network slice based on the temporary identifier.
根据权利要求26所述的装置，其特征在于，所述处理单元还用于：The device according to claim 26, wherein the processing unit is further configured to:

控制所述收发单元向所述第二网络切片发送携带有所述第一网络切片对应的NSSAI的接入请求，以使所述第二网络切片将所述接入请求发送给所述第一网络切片，由所述第一网络切片对所述用户设备进行接入处理；Controlling, by the transceiver unit, an access request that carries an NSSAI corresponding to the first network slice to the second network slice, so that the second network slice sends the access request to the first network Segmenting, performing access processing on the user equipment by the first network slice;

接入所述第一网络切片。Accessing the first network slice.
一种接入网络切片的装置，其特征在于，所述装置包括：An apparatus for accessing a network slice, wherein the apparatus comprises:

收发单元，用于接收用户迁移指令，所述用户迁移指令中携带有所述需要进行用户设备的迁移处理的第二网络切片的标识，以及所述用户设备需要重新接入的第一网络切片的标识；a transceiver unit, configured to receive a user migration instruction, where the user migration instruction carries an identifier of the second network slice that needs to perform a migration process of the user equipment, and a first network slice that the user equipment needs to re-access Identification

所述收发单元，还用于向所述第二网络切片发送用户迁移通知，以使所述第二网络切片将所述用户设备迁移到所述第一网络切片中。The transceiver unit is further configured to send a user migration notification to the second network slice, so that the second network slice migrates the user equipment into the first network slice.
根据权利要求32所述的装置，其特征在于，所述收发单元，还用于：The device according to claim 32, wherein the transceiver unit is further configured to:

向所述第二网络切片发送携带有所述第一网络切片的标识的用户迁移通知；或者，Transmitting, to the second network slice, a user migration notification carrying the identifier of the first network slice; or

根据预先存储的网络切片的标识和NSSAI的对应关系，确定所述第一网络切片的标识对应的NSSAI；Determining, according to the correspondence between the identifier of the network slice and the NSSAI, the NSSAI corresponding to the identifier of the first network slice;

向所述第二网络切片发送携带有所述第一网络切片的NSSAI的用户迁移通知。Transmitting a user migration notification of the NSSAI carrying the first network slice to the second network slice.
根据权利要求32所述的装置，其特征在于，所述装置还包括：The device of claim 32, wherein the device further comprises:

删除单元，用于当接收到所述第二网络切片发送的迁移完毕通知时，删除所述第二网络切片。And a deleting unit, configured to delete the second network slice when receiving the migration completion notification sent by the second network slice.
一种计算机可读存储介质，包括指令，当所述计算机可读存储介质在第二网络切片上运行时，使得所述第二网络切片执行所述权利要求1-8中任一权利要求所述的方法。A computer readable storage medium comprising instructions for causing the second network slice to perform the method of any of claims 1-8 when the computer readable storage medium is run on a second network slice Methods.
一种计算机可读存储介质，包括指令，当所述计算机可读存储介质在用户设备上运行时，使得所述用户设备执行所述权利要求9-14中任一权利要求所述的方法。A computer readable storage medium comprising instructions for causing the user equipment to perform the method of any of claims 9-14 when the computer readable storage medium is run on a user device.
一种计算机可读存储介质，包括指令，当所述计算机可读存储介质在管理设备上运行时，使得所述管理设备执行所述权利要求15-17中任一权利要求所述的方法。A computer readable storage medium comprising instructions for causing the management device to perform the method of any of claims 15-17 when the computer readable storage medium is run on a management device.