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WO2018045877A1 - 网络切片控制方法及相关设备 - Google Patents

网络切片控制方法及相关设备 Download PDF

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Publication number
WO2018045877A1
WO2018045877A1 PCT/CN2017/098800 CN2017098800W WO2018045877A1 WO 2018045877 A1 WO2018045877 A1 WO 2018045877A1 CN 2017098800 W CN2017098800 W CN 2017098800W WO 2018045877 A1 WO2018045877 A1 WO 2018045877A1
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Prior art keywords
slice
network
terminal device
network slice
core network
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PCT/CN2017/098800
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English (en)
French (fr)
Inventor
李宏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/165—Performing reselection for specific purposes for reducing network power consumption

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a network slice control method and related devices.
  • the development of wireless communication technology is changing with each passing day. In the future, wireless communication services will be ever-changing and in various forms.
  • the fifth generation (English: 5th Generation, 5G for short) wireless communication network will be oriented to different application scenarios, such as ultra high definition video, virtual reality, large-scale Internet of Things, car networking, etc., different scenarios for network mobility
  • the security, delay, reliability, and even the charging method requirements are different.
  • a service with high-speed mobile features has high requirements on network performance indicators such as service continuity and handover delay
  • the machine Class Communication (English: Machine Type Communication, MTC for short) has high requirements on the number of service connections, but there is no requirement for handover delay and mobility.
  • the future network in order to adapt to the different network performance requirements of different services, the future network needs to have the ability to be developed on demand, that is, to enable flexible configuration of network slicing, and to cut the physical network into multiple virtual networks.
  • Slice each virtual network slice faces different application scenarios.
  • the embodiment of the invention provides a network slice control method and related equipment, which can be controlled by the core network management device to switch the target device to the target network slice, reduce the load pressure of the source network slice, and optimize the network resource of the source network slice. .
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: the core network management device receives information about a network state sent by the source network slice, and the source network slice is a network slice that the terminal device has accessed. If the network state of the source network slice satisfies the first preset condition, the core network management device controls the terminal device to switch from the source network slice to the target network slice. Thereby, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.
  • a process in which a core network management device controls a terminal device to switch from a source network slice to a target network slice is described.
  • the core network management device performs target network slice access authorization on the terminal device.
  • the core network management device sends a first slice control request to the terminal device.
  • the first slice control request includes an identification of the target network slice.
  • the identifier of the target network slice is used to instruct the terminal device to determine to switch from the source network slice to the target network slice according to the identifier of the target network slice.
  • the first slice control request further includes configuration indication information corresponding to the target network slice, where the configuration indication information is used to indicate that the terminal device is configured according to Configure the indication information for protocol configuration to access the target network slice. Thereby, the terminal device can correctly access the target network slice.
  • the core network management device after the core network management device performs the target network slice access authorization on the terminal device, the core network management device further sends a second slice control request including the identifier of the terminal device to the target network slice.
  • the second slice control request is used to indicate that the target network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device.
  • the core network management device determines that the target network slice has established a bearer for the terminal device, the core network management device sends a third slice control request including the identity of the terminal device to the source network slice.
  • the third slice control request is used to indicate that the source network slice is removed as a bearer established by the terminal device corresponding to the identifier of the terminal device.
  • the bearer is established for the terminal device through the target network slice, and the terminal device can correctly access the target network slice.
  • the source network slice is removed from the bearer established for the terminal device. After that, the source network slice no longer provides service services for the terminal device, which reduces the load pressure on the source network slice.
  • the core network management device is Obtaining the identifier of the terminal device in the terminal device identifier set of the source network slice, and acquiring the subscription information corresponding to the identifier of the terminal device from the home subscription user server or the policy and charging rule function device according to the identifier of the terminal device . If the core network management device determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the core network management device performs target network slice access authorization on the terminal device. The access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value. Greater than or equal to the second preset threshold.
  • the target network slice is a default network slice or a network that meets the second preset condition slice.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to a third preset threshold, or the load value is less than or equal to the fourth Preset threshold.
  • the information about the network state sent by the source network slice includes the identifier of the terminal device.
  • the core network management device obtains the identifier of the terminal device from the information of the network state, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the core network management device performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the information about the network status sent by the source network slice includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the target wireless access corresponding to the target network slice by the terminal device.
  • the downlink signal sent by the network device performs the measured second measurement value and the identifier of the target radio access network device.
  • Identification of the target radio access network device The core network management device determines a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the core network management device receives information about a network state sent by the source network slice, specifically: a core network management device Receiving information about the network status sent by the radio access network device or the core network control plane device, where the radio access network device or the core network control plane device is a device in the source network slice.
  • the initial access source network slice of the terminal device receives a slice access request sent by the terminal device.
  • the slice access request includes an identifier of the source network slice.
  • the core network management device performs source network slice access authorization corresponding to the identity of the source network slice to the terminal device according to the slice access request.
  • the core network management device sends configuration indication information corresponding to the source network slice to the terminal device.
  • the configuration indication information corresponding to the source network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Thereby, the success rate of the terminal device when initially accessing the source network slice is improved.
  • the sixth slice is also sent to the source network slice.
  • the control request includes an identifier of the terminal device.
  • the sixth slice control request is used to indicate that the source network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device. Thereby, it is ensured that the terminal device can access the source network slice.
  • the slice access request further includes an identifier of the terminal device.
  • the core network management device obtains the identifier of the terminal device from the slice access request, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if The core network management device determines that the terminal device can access the source network slice according to the subscription information and the identifier of the source network slice, and the core network management device performs the source network slice access authorization corresponding to the identity of the source network slice to the terminal device.
  • the access authorization further improves the success rate when the terminal device accesses the source network slice.
  • the core network management device includes an interconnected slice manager and protocol configuration function.
  • the target network slice is the default network slice.
  • the slice manager receives information about the network status sent by the source network slice. If the network state of the source network slice satisfies the first preset condition, the slice manager performs default network slice access authorization on the terminal device.
  • the slice manager sends a protocol configuration information acquisition request to the protocol configuration device, and the protocol configuration device receives the protocol configuration information acquisition request sent by the slice manager.
  • the protocol configuration information acquisition request includes an identifier of a default network slice.
  • the protocol configuration information obtaining request is used to indicate that the protocol configuration information corresponding to the default network slice is obtained.
  • the protocol configuration device searches for protocol configuration information corresponding to the default network slice according to the received protocol configuration information acquisition request, and sends the protocol configuration information to the slice manager.
  • the slice manager receives the protocol configuration information sent by the protocol configuration device, and sends the protocol configuration information to the terminal device.
  • the terminal device receives the protocol configuration information sent by the slice manager, and performs protocol configuration according to the protocol configuration information to access the default network slice. .
  • the slice manager is configured to perform access authorization, and the protocol configuration device determines the protocol configuration information.
  • the slice management is implemented in the implementation manner.
  • the device and protocol configuration devices each implement different functions and are more efficient.
  • the information about the network state of the source network slice includes the network state of the radio access network device in the source network slice Information and/or information on the network status of the core network user plane device in the source network slice, or information on the network status of the source network slice includes information on the network status of the core network control plane device in the source network slice and/or Information about the network status of the core network user plane device in the source network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: the radio access network device transmitting information of a network state of the source network slice to the core network management device.
  • the source network slice is a network slice that the terminal device has accessed
  • the wireless access network device is a wireless access network device sliced by the source network. If the network state of the source network slice satisfies the first preset condition, the radio access network device receives the second slice control request that is sent by the core network management device, including the identifier of the terminal device.
  • the radio access network device removes the bearer established by the terminal device corresponding to the identifier of the terminal device according to the second slice control request. After that, the source network slice no longer provides service services for the terminal device, which reduces the load pressure on the source network slice.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network state sent by the radio access network device includes the identifier of the terminal device.
  • the identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if the core network management device is contracted according to the subscription
  • the information determining terminal device allows the core network management device to perform network slice switching control on the terminal device, and the core network management device performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the target network slice is a default network slice or meets the second Network slice with preset conditions.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold, or the load value is less than or equal to the fourth Preset threshold.
  • the information about the network state sent by the radio access network device includes the source corresponding to the source network slice by the terminal device
  • the first measured value obtained by measuring the downlink signal sent by the radio access network device, the second measured value obtained by the terminal device measuring the downlink signal sent by the target radio access network device corresponding to the target network slice, and the target radio access network The identity of the device.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the initial access source network slice of the terminal device is described.
  • the source network slice receives the sixth slice control request sent by the core network management device, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device.
  • the sixth slice access request includes an identifier of the terminal device.
  • Source network slice according to the sixth slice control The request establishes a bearer for the terminal device corresponding to the identifier of the terminal device. Thereby, it is ensured that the terminal device can access the source network slice.
  • the information about the network state of the source network slice includes the network state of the radio access network device in the source network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: the core network user plane device sends information about a network state of the source network slice to the core network management device.
  • the source network slice is a network slice that the terminal device has accessed, and the core network user plane device is a core network user plane device of the source network slice. If the network state of the source network slice satisfies the first preset condition, the core network user plane device receives the second slice control request that is sent by the core network management device, including the identifier of the terminal device.
  • the core network user plane device removes the bearer established for the terminal device corresponding to the identifier of the terminal device according to the second slice control request. After that, the source network slice no longer provides service services for the terminal device, which reduces the load pressure on the source network slice.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network state sent by the core network user plane device includes the identifier of the terminal device.
  • the identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if the core network management device is contracted according to the subscription
  • the information determining terminal device allows the core network management device to perform network slice switching control on the terminal device, and the core network management device performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the target network slice is a default network slice or meets the second Network slice with preset conditions.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to a third preset threshold, or the load value is less than or equal to the fourth Preset threshold.
  • the information about the network state sent by the core network user plane device includes the source corresponding to the source network slice by the terminal device
  • the first measurement value obtained by measuring the downlink signal sent by the user equipment of the core network, the second measurement value obtained by the terminal equipment for measuring the downlink signal sent by the user plane device of the target core network corresponding to the target network slice, and the target core network user plane The identity of the device.
  • the identifier of the target core network user plane device is used by the core network management device to determine the service type corresponding to the target core network user plane device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target core network user plane device is inconsistent with the service type corresponding to the source core network user plane device.
  • the initial access source network slice of the terminal device is described.
  • the source network slice receives the sixth slice control request sent by the core network management device, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device.
  • the sixth slice access request includes an identifier of the terminal device.
  • Source network slice according to the sixth slice control The request establishes a bearer for the terminal device corresponding to the identifier of the terminal device. Thereby, it is ensured that the terminal device can access the source network slice.
  • the information about the network state of the source network slice includes the network state of the radio access network device in the source network slice Information about the network status of the core network user plane device in the information and/or source network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: the core network control plane device sends information about a network state of the source network slice to the core network management device.
  • the source network slice is a network slice that the terminal device has accessed, and the core network control plane device is a core network control plane device of the source network slice. If the network state of the source network slice satisfies the first preset condition, the core network control plane device receives the second slice control request that is sent by the core network management device, including the identifier of the terminal device.
  • the core network control plane device removes the bearer established for the terminal device corresponding to the identifier of the terminal device according to the second slice control request. After that, the source network slice no longer provides service services for the terminal device, which reduces the load pressure on the source network slice.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network state sent by the control device of the core network includes the identifier of the terminal device.
  • the identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if the core network management device is contracted according to the subscription
  • the information determining terminal device allows the core network management device to perform network slice switching control on the terminal device, and the core network management device performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the target network slice is a default network slice or meets the second Network slice with preset conditions.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to a third preset threshold, or the load value is less than or equal to the fourth Preset threshold.
  • the information about the network state sent by the control device of the core network includes the source corresponding to the source network slice by the terminal device
  • the first measured value obtained by measuring the downlink signal sent by the radio access network device, the second measured value obtained by the terminal device measuring the downlink signal sent by the target radio access network device corresponding to the target network slice, and the target radio access network The identity of the device.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the initial access source network slice of the terminal device is described.
  • the source network slice receives the sixth slice control request sent by the core network management device, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device.
  • the sixth slice access request includes an identifier of the terminal device.
  • Source network slice according to the sixth slice control The request establishes a bearer for the terminal device corresponding to the identifier of the terminal device. Thereby, it is ensured that the terminal device can access the source network slice.
  • the information about the network state of the source network slice includes the network state of the core network control plane device in the source network slice Information about the network status of the core network user plane device in the information and/or source network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: the terminal device receives a first slice control request sent by the core network management device, and the terminal device has accessed the source network slice.
  • the first slice control request is sent to the terminal device when the network state of the source network slice meets the first preset condition according to the network state information sent by the source network slice, and the first slice control request includes: The ID of the target network slice.
  • the terminal device determines, according to the first slice control request, a target network slice corresponding to the identifier switched from the source network slice to the target network slice. Thereby, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.
  • the first slice control request further includes configuration indication information corresponding to the target network slice; after the terminal device receives the first slice control request sent by the core network management device The terminal device also performs protocol configuration according to the configuration indication information to access the target network slice. The success rate of the terminal device accessing the target network slice is improved.
  • the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold or the load value. Greater than or equal to the second preset threshold.
  • the target network slice is a default network slice or meets the second Network slice with preset conditions.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the remaining value of the network resource is greater than or equal to the third preset threshold, or the load value is less than or equal to the fourth Preset threshold.
  • the information about the network state sent by the source network slice includes the source wireless connection corresponding to the source network slice by the terminal device
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the initial access source network slice of the terminal device is described.
  • the terminal device transmits a slice access request including an identifier of the source network slice to the core network management device.
  • the slice access request is used to instruct the core network management device to perform source network slice access authorization corresponding to the identity of the source network slice of the terminal device, and send configuration indication information corresponding to the source network slice to the terminal device.
  • the terminal device receives the configuration indication information corresponding to the source network slice sent by the core network management device.
  • the terminal device performs protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Thereby, the success rate of the terminal device when initially accessing the source network slice is improved.
  • the slice access request further includes an identifier of the terminal device.
  • the identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if the core network management device is contracted according to the subscription
  • the identifier of the information and the source network slice determines that the terminal device can access the source network slice, and the core network management device performs the source network slice access authorization corresponding to the identifier of the source network slice to the terminal device.
  • the access authorization further improves the success rate when the terminal device accesses the source network slice.
  • the information about the network state of the source network slice includes the network state of the radio access network device in the source network slice Information about the network status of the core network user plane device in the information and/or source network slice, or information of the network status of the source network slice including information and/or source of the network status of the core network control plane device in the source network slice Information about the network status of the core network user plane device in the network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: receiving, by the core network management device, information about a network state sent by the target network slice, where the target network slice is a network slice that the terminal device access fails, and the terminal device has accessed the source network slice. If the network state of the target network slice satisfies the third preset condition, the core network management device controls the terminal device to access the target network slice. Therefore, the requirement that the terminal device access two network slices simultaneously is satisfied.
  • a process for the core network management device to control the terminal device to access the target network slice is described.
  • the core network management device performs target network slice access authorization on the terminal device.
  • the core network management device sends a fourth slice control request to the terminal device, where the fourth slice control request includes configuration indication information corresponding to the target network slice.
  • the configuration indication information corresponding to the target network slice is used to indicate that the terminal device performs protocol configuration according to the configuration indication information to access the target network slice, so that the terminal device can correctly access the target network slice.
  • the core network management device after the core network management device performs the target network slice access authorization on the terminal device, the core network management device further sends the target network slice to the target network.
  • a fifth slice control request for identification of the terminal device. The fifth slice control request is used to indicate that the target network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device, so that the terminal device can correctly access the target network slice.
  • the core network management device obtains the terminal from the pre-recorded terminal device identifier set.
  • the identifier of the device, and the subscription information corresponding to the identifier of the terminal device is obtained from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slice access control on the terminal device according to the subscription information, the core network management device performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold or the load value. Less than or equal to the sixth preset threshold.
  • the core network management device receives the information about the network state sent by the target network slice, specifically: the core network management device Receiving The information of the network status sent by the radio access network device or the core network user plane device or the core network control plane device, and the radio access network device or the core network user plane device or the core network control plane device is the device in the target network slice.
  • the initial access source network slice of the terminal device is described.
  • the core network management device receives a slice access request sent by the terminal device.
  • the slice access request includes an identifier of the source network slice.
  • the core network management device performs source network slice access authorization corresponding to the identity of the source network slice to the terminal device according to the slice access request.
  • the core network management device sends configuration indication information corresponding to the source network slice to the terminal device.
  • the configuration indication information corresponding to the source network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Thereby, the success rate of the terminal device when initially accessing the source network slice is improved.
  • the core network management device sends the source network slice access authorization to the terminal device according to the slice access request, and further sends the source network slice to the source network A sixth slice control request including an identification of the terminal device.
  • the sixth slice control request is used to indicate that the source network slice establishes a bearer for the terminal device. Thereby, it is ensured that the terminal device can access the source network slice.
  • the slice access request further includes an identifier of the terminal device.
  • the core network management device obtains the identifier of the terminal device from the slice access request, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if The core network management device determines that the terminal device can access the source network slice according to the subscription information and the identifier of the source network slice, and the core network management device performs the source network slice access authorization corresponding to the identity of the source network slice to the terminal device. The access authorization further improves the success rate when the terminal device accesses the source network slice.
  • the core network management device includes an interconnected slice manager and a protocol configuration device.
  • the slice manager receives information of the network status sent by the target network slice. If the network state of the target network slice satisfies the third preset condition, the slice manager performs the target network slice access authorization on the terminal device.
  • the slice manager sends a protocol configuration information acquisition request to the protocol configuration device, and the protocol configuration device receives the protocol configuration information acquisition request sent by the slice manager.
  • the protocol configuration information acquisition request includes an identifier of the target network slice.
  • the protocol configuration information acquisition request is used to indicate that the protocol configuration information corresponding to the target network slice is obtained.
  • the protocol configuration device searches for protocol configuration information corresponding to the target network slice according to the received protocol configuration information acquisition request, and sends the protocol configuration information to the slice manager.
  • the slice manager receives the protocol configuration information sent by the protocol configuration device, and sends the protocol configuration information to the terminal device, where the terminal device receives the protocol configuration information sent by the slice manager, and performs protocol configuration according to the protocol configuration information to access the target network slice. .
  • the slice manager is configured to perform access authorization, and the protocol configuration device determines the protocol configuration information.
  • the slice management is implemented in the implementation manner.
  • the device and protocol configuration devices each implement different functions and are more efficient.
  • the information about the network state of the target network slice includes the network state of the radio access network device in the target network slice.
  • Information about the network status of the core network user plane device in the information and/or target network slice, or information of the network status of the target network slice including information and/or target of the network status of the core network control plane device in the target network slice Information about the network status of the core network user plane device in the network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: the radio access network device sends, to the core network management device, information about a network state of the target network slice, where the target network slice is a network slice that the terminal device fails to access, the terminal device has accessed the source network slice, and the wireless connection
  • the network access device is a radio access network device sliced by the target network. If the network state of the target network slice meets the third preset condition, the radio access network device receives the fifth slice control request sent by the core network management device, where the fifth slice control request includes the identifier of the terminal device.
  • the radio access network device establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, so that the terminal device that has accessed the source network slice can be simultaneously accessed into the target network slice.
  • the third preset condition includes: the remaining value of the network resource is greater than or equal to the fifth preset threshold, or the load value is less than or equal to the sixth preset threshold.
  • the information about the network state of the target network slice includes the network state of the radio access network device in the target network slice Information and/or information about the network status of the core network user plane device in the target network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: the core network user plane device sends the network state information of the target network slice to the core network management device, the target network slice is a network slice that the terminal device access fails, the terminal device has accessed the source network slice, and the core network
  • the user plane device is the core network user plane device of the target network slice. If the network state of the target network slice meets the third preset condition, the core network user plane device receives the fifth slice control request sent by the core network management device, where the fifth slice control request includes the identifier of the terminal device.
  • the core network user plane device establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, so that the terminal device that has accessed the source network slice can be simultaneously accessed into the target network slice.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold, or the load value is less than or equal to the sixth preset threshold.
  • the information about the network state of the target network slice includes the network state of the radio access network device in the target network slice Information and/or information about the network status of the core network user plane device in the target network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: the core network control plane device sends the network state information of the target network slice to the core network management device, the target network slice is a network slice that the terminal device access fails, the terminal device has accessed the source network slice, and the core network
  • the control plane device is the core network control plane device of the target network slice. If the network state of the target network slice meets the third preset condition, the core network control plane device receives the fifth slice control request sent by the core network management device, where the fifth slice control request includes the identifier of the terminal device.
  • the core network control plane device establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, so that the terminal device that has accessed the source network slice can be simultaneously accessed into the target network slice.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the information about the network state of the target network slice includes the network state of the core network control plane device in the target network slice Information and/or information about the network status of the core network user plane device in the target network slice.
  • an embodiment of the present invention provides a network slice control method.
  • the method includes: receiving, by the terminal device, a fourth slice control request sent by the core network management device, where the terminal device has accessed the source network slice.
  • Fourth slice control please The configuration indication information corresponding to the target network slice is obtained.
  • the fourth slice control request is sent to the terminal device when the network state of the target network slice meets the third preset condition according to the network state information sent by the target network slice.
  • the terminal device performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice. Therefore, the requirement that the terminal device access two network slices simultaneously is satisfied.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the information about the network state of the target network slice includes the network state of the radio access network device in the target network slice Information and/or information about the network status of the core network user plane device in the target network slice, or information of the network status of the target network slice includes information on the network status of the core network control plane device in the target network slice and/or Information about the network status of the core network user plane device in the target network slice.
  • an embodiment of the present invention provides a core network management device, including a processor, a memory, and a transceiver, where the memory is used to store an instruction, and the processor is configured to invoke a memory storage instruction to perform the following operations: through the transceiver.
  • the source network slice is a network slice that the terminal device has accessed. If the network state of the source network slice satisfies the first preset condition, the processor controls the terminal device to switch from the source network slice to the target network slice. Thereby, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.
  • the processor controlling the terminal device to switch from the source network slice to the target network slice includes: the processor performing the target network slice access authorization on the terminal device.
  • the processor sends a first slice control request to the terminal device through the transceiver.
  • the first slice control request includes an identification of the target network slice.
  • the identifier of the target network slice is used to indicate that the terminal device determines, according to the identifier of the target network slice, the target network slice corresponding to the identifier of the target network slice switched from the source network slice.
  • the load pressure of the source network slice is alleviated, and the network resources of the source network slice are optimized.
  • the first slice control request further includes configuration indication information corresponding to the target network slice, where the configuration indication information is used to indicate the terminal device Protocol configuration is performed according to the configuration indication information to access the target network slice. Thereby, the terminal device can correctly access the target network slice.
  • the processor is further configured to: send, by the transceiver, a second slice control request including the identifier of the terminal device to the target network slice.
  • the second slice control request is used to indicate that the target network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device.
  • the processor determines that the target network slice has established a bearer for the terminal device, the third slice control request including the identity of the terminal device is sent to the source network slice through the transceiver.
  • the third slice control request is used to indicate that the source network slice is removed as a bearer established by the terminal device corresponding to the identifier of the terminal device.
  • the bearer is established for the terminal device through the target network slice, and the terminal device can correctly access the target network slice.
  • the source network slice is removed from the bearer established for the terminal device. After that, the source network slice no longer provides service services for the terminal device, which reduces the load pressure on the source network slice.
  • Target network to the terminal device The slice access authorization includes: obtaining, by the processor, the identifier of the terminal device from the set of terminal device identifiers that have accessed the source network slice, and according to the identifier of the terminal device, from the home subscription user server or the policy and charging rule function device Obtaining contract information corresponding to the identifier of the terminal device. If the processor determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the processor performs target network slice access authorization on the terminal device. The access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the first preset condition includes: the remaining value of the network resource is less than or It is equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the target network slice is a default network slice or a network slice that meets the second preset condition.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold, or the load value is less than or equal to The fourth preset threshold.
  • the information about the network state sent by the source network slice includes the terminal device
  • the processor performs the target network slice access authorization on the terminal device, including: the processor obtains the identifier of the terminal device from the network state information, and according to the identifier of the terminal device, from the home subscription user server or the policy and charging
  • the subscription function information corresponding to the identifier of the terminal device is obtained in the rule function device. If the processor determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the processor performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the information about the network status sent by the source network slice includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device corresponding to the target network slice.
  • the downlink signal sent by the target radio access network device performs the measured second measurement value and the identifier of the target radio access network device.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the processor receives, by the transceiver, information about a network state sent by the source network slice, specifically: The processor receives, by the transceiver, information about a network state sent by the radio access network device or the core network user plane device or the core network control plane device, where the radio access network device or the core network user plane device or the core network control plane device is the source network The device in the slice.
  • the processor processes the network state information sent by the source network slice before the processor receives the information
  • the device is further configured to: receive, by the transceiver, a slice access request sent by the terminal device.
  • the slice access request includes an identifier of the source network slice.
  • the processor performs source network slice access authorization corresponding to the identifier of the source network slice to the terminal device according to the slice access request.
  • the processor sends the configuration indication information corresponding to the source network slice to the terminal device.
  • the configuration indication information corresponding to the source network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Thereby, the success rate of the terminal device when initially accessing the source network slice is improved.
  • the processor is further configured to: send and receive The device sends a sixth slice control request to the source network slice.
  • the sixth slice control request includes an identifier of the terminal device, and the sixth slice control request is used to indicate that the source network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device. Thereby, it is ensured that the terminal device can access the source network slice.
  • the slice access request further includes the terminal device Logo.
  • the processor performs the source network slice access authorization corresponding to the identifier of the source network slice according to the slice access request, where the processor obtains the identifier of the terminal device from the slice access request, and obtains the identity of the terminal device according to the identifier of the terminal device.
  • the subscription information corresponding to the identifier of the terminal device is obtained in the subscription user server or the policy and charging rule function device.
  • the processor determines that the terminal device can access the source network slice according to the subscription information and the identifier of the source network slice, the processor performs the source network slice access authorization corresponding to the identifier of the source network slice to the terminal device.
  • the access authorization further improves the success rate when the terminal device accesses the source network slice.
  • the information about the network state of the source network slice includes the radio access network device in the source network slice Information of the network status and/or information of the network status of the core network user plane device in the source network slice, or information of the network status of the source network slice includes information of the network status of the core network control plane device in the source network slice And/or information about the network status of the core network user plane device in the source network slice.
  • an embodiment of the present invention provides a radio access network device, where the radio access network device is a radio access network device in a source network slice that the terminal device has accessed.
  • the radio access network device includes a processor, a memory, and a transceiver, wherein the memory is configured to store instructions, and the processor is configured to invoke the program and data stored in the memory to perform the operation of: transmitting the source network slice to the core network management device through the transceiver. Information about network status. And if the network state of the source network slice meets the first preset condition, receiving, by the transceiver, a second slice control request that is sent by the core network management device, including the identifier of the terminal device. And deleting, according to the second slice control request, the bearer established by the terminal device corresponding to the identifier of the terminal device. After that, the source network slice no longer provides service services for the terminal device, which reduces the load pressure on the source network slice.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network state sent by the radio access network device includes the identifier of the terminal device.
  • the identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if the core network management device is contracted according to the subscription
  • the information determining terminal device allows the core network management device to perform network slice switching control on the terminal device, and the core network management device performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to a third preset threshold, or the load value is less than or equal to The fourth preset threshold.
  • the information about the network state sent by the radio access network device includes the terminal device slicing the source network The first measured value obtained by measuring the downlink signal sent by the corresponding source radio access network device, the second measured value obtained by the terminal device measuring the downlink signal sent by the target radio access network device corresponding to the target network slice, and the target wireless ID of the access network device.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the initial access source network slice of the terminal device is described.
  • the processor receives the sixth slice control request sent by the core network management device by using the transceiver, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device.
  • the sixth slice access request includes an identifier of the terminal device.
  • the processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Thereby, it is ensured that the terminal device can access the source network slice.
  • the information about the network state of the source network slice includes the radio access network device in the source network slice Information about the status of the network and/or information about the network status of the core network user plane device in the source network slice.
  • the embodiment of the present invention provides a core network user plane device, where the core network user plane device is a core network user plane device in a source network slice that the terminal device has accessed.
  • the core network user plane device includes a processor, a memory, and a transceiver, wherein the memory is configured to store an instruction, and the processor is configured to invoke the memory stored instruction to perform the operation of: transmitting, by the transceiver, a network state of the source network slice to the core network management device. Information. And if the network state of the source network slice meets the first preset condition, receiving, by the transceiver, a second slice control request that is sent by the core network management device, including the identifier of the terminal device. And deleting, according to the second slice control request, the bearer established by the terminal device corresponding to the identifier of the terminal device. After that, the source network slice no longer provides service services for the terminal device, which reduces the load pressure on the source network slice.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network state sent by the core network user plane device includes the identifier of the terminal device.
  • the identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if the core network management device is contracted according to the subscription
  • the information determining terminal device allows the core network management device to perform network slice switching control on the terminal device, and the core network management device performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the target network slice is a default network slice Or a network slice that satisfies the second preset condition.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to a third preset threshold or the load value is less than or equal to The fourth preset threshold.
  • the information about the network state sent by the core network user plane device includes the terminal device slicing the source network
  • the first measured value obtained by measuring the downlink signal sent by the corresponding source core network user plane device, the second measured value obtained by the terminal device measuring the downlink signal sent by the target core network user plane device corresponding to the target network slice, and the target core The identifier of the network user plane device.
  • the identifier of the target core network user plane device is used by the core network management device to determine the service type corresponding to the target core network user plane device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target core network user plane device is inconsistent with the service type corresponding to the source core network user plane device.
  • the initial access source network slice of the terminal device is described.
  • the processor receives the sixth slice control request sent by the core network management device by using the transceiver, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device.
  • the sixth slice access request includes an identifier of the terminal device.
  • the processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Thereby, it is ensured that the terminal device can access the source network slice.
  • the information about the network state of the source network slice includes the radio access network device in the source network slice Information about the status of the network and/or information about the network status of the core network user plane device in the source network slice.
  • the embodiment of the present invention provides a core network control plane device, where the core network control plane device is a core network control plane device in a source network slice that the terminal device has accessed.
  • the core network control plane device includes a processor, a memory, and a transceiver, wherein the memory is configured to store an instruction, and the processor is configured to invoke the memory stored instruction to perform the operation of: transmitting, by the transceiver, a network state of the source network slice to the core network management device. Information. And if the network state of the source network slice meets the first preset condition, receiving, by the transceiver, a second slice control request that is sent by the core network management device, including the identifier of the terminal device. And deleting, according to the second slice control request, the bearer established by the terminal device corresponding to the identifier of the terminal device. After that, the source network slice no longer provides service services for the terminal device, which reduces the load pressure on the source network slice.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network state sent by the core network control plane device includes the identifier of the terminal device.
  • the identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if the core network management device is contracted according to the subscription
  • the information determining terminal device allows the core network management device to perform network slice switching control on the terminal device, and the core network management device performs target network slice access authorization on the terminal device. Determine whether to enter the terminal device through the subscription information of the terminal device.
  • the access authorization of the line can improve the accuracy of the slice switching control of the terminal device by the core network management device.
  • the target network slice is a default network slice Or a network slice that satisfies the second preset condition.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to a third preset threshold or the load value is less than or equal to The fourth preset threshold.
  • the information about the network state sent by the core network control plane device includes the terminal device slicing the source network The first measured value obtained by measuring the downlink signal sent by the corresponding source radio access network device, the second measured value obtained by the terminal device measuring the downlink signal sent by the target radio access network device corresponding to the target network slice, and the target wireless ID of the access network device.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the initial access source network slice of the terminal device is described.
  • the processor receives the sixth slice control request sent by the core network management device by using the transceiver, and the sixth slice control request is sent by the core network management device to the source network slice according to the slice access request sent by the terminal device.
  • the sixth slice access request includes an identifier of the terminal device.
  • the processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the sixth slice control request. Thereby, it is ensured that the terminal device can access the source network slice.
  • the information about the network state of the source network slice includes the core network control plane device in the source network slice Information about the status of the network and/or information about the network status of the core network user plane device in the source network slice.
  • an embodiment of the present invention provides a terminal device, including a processor, a memory, and a transceiver.
  • the memory is used to store instructions
  • the processor is configured to invoke the memory storage instruction to perform the following operations: receiving, by the transceiver, a first slice control request sent by the core network management device, and the terminal device has accessed the source network slice.
  • the first slice control request is sent to the terminal device when the network state of the source network slice meets the first preset condition according to the network state information sent by the source network slice, and the first slice control request includes: The ID of the target network slice.
  • the processor determines, according to the first slice control request, a target network slice corresponding to the identity of the source network slice switch to the target network slice. Thereby, the load pressure of the source network slice is reduced, and the network resources of the source network slice are optimized.
  • the first slice control request further includes configuration indication information corresponding to the target network slice; the processor receives, by the transceiver, the first sent by the core network management device After the slice control request, the processor is further configured to: perform protocol configuration according to the configuration indication information to access the target network slice. The success rate of the terminal device accessing the target network slice is improved.
  • the first preset condition includes: the remaining value of the network resource is less than or equal to the first preset threshold Or the load value is greater than or equal to the second preset threshold.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to a third preset threshold or the load value is less than or equal to The fourth preset threshold.
  • the information about the network state sent by the source network slice includes the corresponding to the source network slice by the terminal device
  • the first measured value obtained by measuring the downlink signal sent by the source radio access network device, the second measured value obtained by the terminal device measuring the downlink signal sent by the target radio access network device corresponding to the target network slice, and the target radio access The identifier of the network device.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the processor receives the first slice control request sent by the core network management device by using the transceiver
  • the processor is further configured to: send, by the transceiver, a slice access request including an identifier of the source network slice to the core network management device.
  • the slice access request is used to instruct the core network management device to perform source network slice access authorization corresponding to the identity of the source network slice of the terminal device, and send configuration indication information corresponding to the source network slice to the terminal device.
  • the processor receives, by using the transceiver, configuration indication information corresponding to the source network slice sent by the core network management device.
  • the processor performs protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Thereby, the success rate of the terminal device when initially accessing the source network slice is improved.
  • the slice access request further includes an identifier of the terminal device.
  • the identifier of the terminal device is used to instruct the core network management device to obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if the core network management device is contracted according to the subscription
  • the identifier of the information and the source network slice determines that the terminal device can access the source network slice, and the core network management device performs the source network slice access authorization corresponding to the identifier of the source network slice to the terminal device.
  • the access authorization further improves the success rate when the terminal device accesses the source network slice.
  • the information about the network state of the source network slice includes the radio access network device in the source network slice Information of the network status and/or information of the network status of the core network user plane device in the source network slice, or information of the network status of the source network slice includes information about the network status of the core network control plane device in the source network slice and / or information about the network status of the core network user plane device in the source network slice.
  • an embodiment of the present invention provides a core network management device, including a processor, a memory, and a transceiver.
  • the memory is used to store instructions
  • the processor is configured to invoke the memory storage instruction to perform the following operations: receiving, by the transceiver, information about a network state sent by the target network slice, where the target network slice is a network slice that the terminal device fails to access, and the terminal device has Access source network slice. If the network state of the target network slice satisfies the third preset condition, the processor controls the terminal device to access the target network slice. Therefore, the requirement that the terminal device access two network slices simultaneously is satisfied.
  • the processor controlling the terminal device to access the target network slice includes: the processor performing the target network slice access authorization on the terminal device.
  • the processor goes to the end through the transceiver
  • the terminal device sends a fourth slice control request, where the fourth slice control request includes configuration indication information corresponding to the target network slice.
  • the configuration indication information corresponding to the target network slice is used to indicate that the terminal device performs protocol configuration according to the configuration indication information to access the target network slice, so that the terminal device can correctly access the target network slice.
  • the processor is further configured to: use the transceiver to the target
  • the network slice transmits a fifth slice control request including the identity of the terminal device.
  • the fifth slice control request is used to indicate that the target network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device, so that the terminal device can correctly access the target network slice.
  • the processor performs the target network slice access authorization on the terminal device
  • the method includes: acquiring, by the processor, the identifier of the terminal device from the pre-recorded terminal device identifier set, and acquiring, according to the identifier of the terminal device, the identifier corresponding to the identifier of the terminal device from the home subscription user server or the policy and charging rule function device Signing information. If the processor determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice access control on the terminal device, the processor performs target network slice access authorization on the terminal device.
  • the access information of the terminal device is determined by the subscription information of the terminal device, and the accuracy of the slice switching control of the terminal device by the core network management device can be improved.
  • the third preset condition includes: the remaining value of the network resource of the target network slice is greater than or equal to the first The five preset thresholds or the load values of the target network slice are less than or equal to the sixth preset threshold.
  • the processor receives, by the transceiver, information about a network state sent by the target network slice, specifically: The processor receives, by using the transceiver, information about a network state sent by the radio access network device or the core network user plane device or the core network control plane device, where the radio access network device or the core network user plane device or the core network control plane device is the target network The device in the slice.
  • the processor before receiving, by the transceiver, the network state information sent by the target network slice, the processor The method is further configured to: receive, by the transceiver, a slice access request sent by the terminal device.
  • the slice access request includes an identifier of the source network slice.
  • the processor performs source network slice access authorization corresponding to the identifier of the source network slice to the terminal device according to the slice access request.
  • the processor sends, by using the transceiver, configuration indication information corresponding to the source network slice to the terminal device.
  • the configuration indication information corresponding to the source network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice. Thereby, the success rate of the terminal device when initially accessing the source network slice is improved.
  • the processor is further configured to: send, by the transceiver, a sixth slice control request including an identifier of the terminal device to the source network slice.
  • the sixth slice control request is used to indicate that the source network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device. Thereby, it is ensured that the terminal device can access the source network slice.
  • the slice access request further includes an identifier of the terminal device.
  • the processor performs source network slice access authorization corresponding to the identifier of the source network slice of the terminal device according to the slice access request, including: the processor accesses from the slice Obtaining the identifier of the terminal device in the request, and acquiring the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device.
  • the processor determines that the terminal device can access the source network slice according to the subscription information and the identifier of the source network slice, the processor performs the source network slice access authorization corresponding to the identifier of the source network slice to the terminal device.
  • the access authorization further improves the success rate when the terminal device accesses the source network slice.
  • the information about the network state of the target network slice includes the radio access network device in the target network slice Information of the network status and/or information of the network status of the core network user plane device in the target network slice, or information of the network status of the target network slice includes information about the network status of the core network control plane device in the target network slice and / or information about the network status of the core network user plane device in the target network slice.
  • the embodiment of the present invention provides a radio access network device, where the radio access network device is a radio access network device in a target network slice in which the terminal device fails to access, and the terminal device has access to the source network. slice.
  • the target network slice includes a processor, a memory, and a transceiver, wherein the memory is for storing instructions, and the processor is configured to invoke the memory stored instructions to perform the operation of: transmitting, by the transceiver, information of a network state of the target network slice to the core network management device.
  • the processor receives the fifth slice control request sent by the core network management device by using the transceiver, where the fifth slice control request includes the identifier of the terminal device.
  • the processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, so that the terminal device that has accessed the source network slice can be simultaneously accessed into the target network slice.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the information about the network state of the target network slice includes the radio access network device in the target network slice Information about the network status and/or information about the network status of the core network user plane device in the target network slice.
  • the embodiment of the present invention provides a core network user plane device, where the core network user plane device is a core network user plane device in a target network slice in which the terminal device fails to access, and the terminal device has access to the source network. slice.
  • the target network slice includes a processor, a memory, and a transceiver, wherein the memory is for storing instructions, and the processor is configured to invoke the memory stored instructions to perform the operation of: transmitting, by the transceiver, information of a network state of the target network slice to the core network management device.
  • the processor receives the fifth slice control request sent by the core network management device by using the transceiver, where the fifth slice control request includes the identifier of the terminal device.
  • the processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, so that the terminal device that has accessed the source network slice can be simultaneously accessed into the target network slice.
  • the third preset condition includes: the network resource residual value is greater than or equal to a fifth preset threshold or the load value is less than or equal to a sixth preset threshold.
  • the information about the network state of the target network slice includes the radio access network device in the target network slice Information about the network status and/or information about the network status of the core network user plane device in the target network slice.
  • the embodiment of the present invention provides a core network control plane device, where the core network control plane device is a core network control plane device in a target network slice in which the terminal device fails to access, and the terminal device has access to the source network. slice.
  • the standard network slice includes a processor, a memory, and a transceiver, wherein the memory is for storing instructions, and the processor is configured to invoke the memory stored instructions to perform the operation of: transmitting, by the transceiver, information of a network state of the target network slice to the core network management device.
  • the processor receives the fifth slice control request sent by the core network management device by using the transceiver, where the fifth slice control request includes the identifier of the terminal device.
  • the processor establishes a bearer for the terminal device corresponding to the identifier of the terminal device according to the fifth slice control request, so that the terminal device that has accessed the source network slice can be simultaneously accessed into the target network slice.
  • the third preset condition includes: the network resource residual value is greater than or equal to a fifth preset threshold or the load value is less than or equal to a sixth preset threshold.
  • the information about the network state of the target network slice includes the core network control plane device in the target network slice Information about the network status and/or information about the network status of the core network user plane device in the target network slice.
  • an embodiment of the present invention provides a terminal device, including a processor, a memory, and a transceiver.
  • the memory is used to store instructions
  • the processor is configured to invoke the memory storage instructions to perform the following operations: receiving, by the transceiver, a fourth slice control request sent by the core network management device, and the terminal device has accessed the source network slice.
  • the fourth slice control request includes configuration indication information corresponding to the target network slice.
  • the fourth slice control request is sent to the terminal device when the network state of the target network slice meets the third preset condition according to the network state information sent by the target network slice.
  • the processor performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice. Therefore, the requirement that the terminal device access two network slices simultaneously is satisfied.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the information about the network state of the target network slice includes the radio access network device in the target network slice Information of the network status and/or information of the network status of the core network user plane device in the target network slice, or information of the network status of the target network slice includes information of the network status of the core network control plane device in the target network slice And/or information about the network status of the core network user plane device in the target network slice.
  • the embodiment of the present invention provides a core network management device, where the core network management device includes a module for performing the network slice control method described in the foregoing first aspect or any one of the foregoing aspects. Or unit.
  • the embodiment of the present invention provides a radio access network device, where the radio access network device includes a network slice control method, which is used to perform the foregoing second aspect or any implementation manner of the second aspect. Module or unit.
  • the embodiment of the present invention provides a core network user plane device, where the core network user plane device includes a network slice control method for performing the foregoing third aspect or any implementation manner of the third aspect. Module or unit.
  • the embodiment of the present invention provides a core network control plane device, where the core network control plane device includes a network slice control method for performing the foregoing fourth aspect or any implementation manner of the fourth aspect Module or unit.
  • an embodiment of the present invention provides a terminal device, where the terminal device includes A module or unit of the network slice control method described in any of the five aspects or the fifth aspect.
  • the embodiment of the present invention provides a core network management device, where the core network management device includes a module for performing the network slice control method described in any one of the foregoing sixth or sixth aspects. Or unit.
  • the embodiment of the present invention provides a radio access network device, where the radio access network device includes the network slice control method described in any one of the seventh aspect or the seventh aspect. Module or unit.
  • the embodiment of the present invention provides a core network user plane device, where the core network user plane device includes a network slice control method for performing the foregoing eighth aspect or any one of the eighth aspects Module or unit.
  • the embodiment of the present invention provides a core network control plane device, where the core network control plane device includes a network slice control method, which is used to perform any of the foregoing ninth or ninth aspects. Module or unit.
  • the embodiment of the present invention provides a terminal device, where the terminal device includes a module or a unit for performing the network slice control method described in any one of the foregoing tenth or tenth aspects.
  • the embodiment of the present invention provides a communication system, including a core network management device, a radio access network device, and a terminal device, where the core network management device is the eleventh or twenty-first aspect.
  • the described core network management device, the radio access network device is the radio access network device described in the twelfth aspect or the twenty-second aspect
  • the terminal device is the terminal device described in the fifteenth aspect or the twenty-fifth aspect
  • the core network management device is the core network management device described in the sixteenth aspect or the twenty-sixth aspect
  • the radio access network device is the radio access network device described in the seventeenth aspect or the twenty-seventh aspect
  • the terminal device is the terminal device described in the twentieth aspect or the thirtieth aspect.
  • the embodiment of the present invention provides a communication system, including a core network management device, a core network user plane device, and a terminal device, where the core network management device is the eleventh aspect or the twenty-first aspect
  • the core network management device the core network user plane device is the core network user plane device described in the thirteenth aspect or the twenty-third aspect
  • the terminal device is the terminal device described in the fifteenth aspect or the twenty-fifth aspect
  • the core network management device is the core network management device described in the sixteenth aspect or the twenty-sixth aspect
  • the core network user plane device is the core network user plane device described in the eighteenth aspect or the twenty-eighth aspect.
  • the terminal device is the terminal device described in the twentieth aspect or the thirtieth aspect.
  • the embodiment of the present invention provides a communication system, including a core network management device, a core network control plane device, and a terminal device, where the core network management device is the eleventh aspect or the twenty-first aspect
  • the core network management device is the core network control plane device described in the fourteenth aspect or the twenty-fourth aspect
  • the terminal device is the terminal device described in the fifteenth aspect or the twenty-fifth aspect
  • the core network management device is the core network management device described in the sixteenth aspect or the twenty-sixth aspect
  • the core network control plane device is the core network control plane device described in the nineteenth aspect or the twenty-ninth aspect
  • the terminal device is the terminal device described in the twentieth aspect or the thirtieth aspect.
  • FIG. 1 is a schematic structural diagram of a network system provided by this patent application.
  • FIG. 2 is a schematic structural diagram of another network system provided by this patent application.
  • Embodiment 3 is a signaling interaction diagram of Embodiment 1 of a network slice control method provided by the present application;
  • Embodiment 4 is a signaling interaction diagram of Embodiment 2 of a network slice control method provided by the present application;
  • Embodiment 3 is a signaling interaction diagram of Embodiment 3 of a network slice control method provided by the present application.
  • FIG. 6 is a signaling interaction diagram of Embodiment 4 of a network slice control method provided by this patent application;
  • Embodiment 8 is a signaling interaction diagram of Embodiment 6 of a network slice control method provided by this patent application;
  • FIG. 9 is a schematic structural diagram of a core network management device provided by this patent application.
  • FIG. 10 is a schematic structural diagram of a radio access network device provided by this patent application.
  • FIG. 11 is a schematic structural diagram of a core network user plane device provided by the present application.
  • FIG. 12 is a schematic structural diagram of a core network control plane device provided by the present application.
  • FIG. 13 is a schematic structural diagram of a terminal device provided by the present application.
  • FIG. 14 is a schematic structural diagram of another core network management device provided by this patent application.
  • 16 is a schematic structural diagram of another core network user plane device provided by this patent application.
  • FIG. 17 is a schematic structural diagram of another core network control plane device provided by the present application.
  • FIG. 18 is a schematic structural diagram of another terminal device provided by this patent application.
  • FIG. 1 is a schematic structural diagram of a network system provided by the present application.
  • each network slice includes a radio access network (English: Radio Access Network, RAN) device and a core network (English: Core Network, referred to as CN) user plane (English: User Plane, referred to as :UP) device.
  • All network slices share a common core network control plane (English: Control Plane, CP for short), and the functions provided by the public core network control plane device include: session management, mobility management, user authentication, service authorization, and service. Quality control, etc.
  • the radio access network device in the network slice is connected to the core network user plane device through an interface, and the radio access network device is connected to the public core network control plane device through an interface, and the core network user plane device and the public core network control plane device are also Connected through the interface.
  • the functions of the radio access network device include, but are not limited to, mobility management of the terminal device, call processing, link management, security encryption, header compression, scheduling, coding, modulation, demodulation, retransmission, segmentation, Convergence, RF and other functions.
  • the functions of the core network user plane device include but are not limited to: routing, filtering, and forwarding of data packets.
  • the core network user plane device sends user data from the terminal device to other devices, and can also send data from other devices to the terminal device, where other devices include but are not limited to servers, packet data networks (English: Packet Data Network, Abbreviation: PDN).
  • terminal device 14 accesses network slice 11.
  • the network slice 11 includes a radio access network device 111 and a core network user plane device 112.
  • the terminal device 15 is connected to the network slice 12.
  • Network slice 12 includes a radio access network device 121 and a core network user plane device 122.
  • the terminal device 16 is connected to the network slice 13.
  • the network slice 13 includes a radio access network device 131 and a core network user plane device 132.
  • the service types corresponding to each of the network slice 11, the network slice 12, and the network slice 13 may be the same or different.
  • the radio access network device 111, the radio access network device 121, and the radio access network device 131 may be three mutually independent radio access network devices, or may be the same radio access network. device.
  • the radio access network device 111, the radio access network device 121, and the radio access network device 131 are the same radio access network device, the network slice 11, the network slice 12, and the network slice 13 each occupy the radio access network device.
  • Different resources are used to distinguish each other.
  • the resources include, but are not limited to, an antenna, a beam, a time-frequency resource, a storage resource, and the like.
  • the radio access network device described in the embodiment of the present invention may be 2G (such as Global System for Mobile Communications (GSM) or Code Division Multiple Access (English: Code Division Multiple Access, referred to as: CDMA)) Base Transceiver Station (English: Base Transceiver Station, BTS for short), or 3G (such as Universal Mobile Telecommunications System (UMTS), Wideband Code Division Multiple Access) (English: Wideband Code Division Multiple Access, referred to as WCDMA), Time Division-Synchronous Code Division Multiple Access (English: Time Division-Synchronous Code Division Multiple Access (TD-SCDMA)) base station (English: NodeB, referred to as: NB) may also be an evolved base station (English: evolved Node B, eNB for short) in a Long Term Evolution (LTE) system, or a radio access network device in a future 5G network. .
  • 2G such as Global System for Mobile Communications (GSM) or Code Division Multiple Access (English: Code Division Multiple Access, referred to as: CDMA)) Base
  • All network slice common core network control plane devices include mobility management device mobility management device 17, home subscription user server 18, policy and charging rule function device 19, and slice manager (English: Slice Manager, referred to as SM) 20 and the protocol configuration device 21.
  • the mobility management device mobility management device 17, the slice manager 20, and the protocol configuration device 21 may be disposed on the same physical entity, or may be separately disposed on different physical entities. This embodiment is described by taking separate settings as an example.
  • the slice manager 20 is connected to the mobility management device mobility management device 17 and the protocol configuration device 21, respectively, and the mobility management device mobility management device 17, the slice manager 20, and the protocol configuration device 21 are respectively associated with the home subscription user server 18 or
  • the policy is connected to the charging rule function device 19.
  • the main functions of the mobility management device mobility management device 17 include: access control (including security and admission control), mobility management (tracking location of the terminal device), attachment and detachment, and session management functions (including grouping) Core evolution (English: Evolved Packet Core, referred to as: EPC) bearer establishment, modification and release).
  • the home subscriber network 18 is mainly used for storing subscription information of the user, and is responsible for managing the subscription data of the user and the location information of the mobile user.
  • the functions of the policy and charging rule function device 19 mainly include: formulating policies and charging decisions based on the subscription information of the user, the service information used, such as the quality of service level, charging rules, and the like.
  • Solid line in Figure 1 Indicates the connection of the user plane
  • dotted line Indicates the connection of the control surface.
  • the radio access network device in this embodiment has an access network control plane function and an access network user plane function.
  • the radio access network device and the mobility management device mobility management device are also connected through an interface.
  • the core network management device described in the following embodiments includes a slice manager 20 and a protocol configuration device 21.
  • the slice manager 20 and the protocol configuration device 21 may be located in the same physical entity or in different physical entities, and the two are connected through an interface.
  • the core network management device can be located in an entity in the existing network, and its logical function implements the function of the core network management device.
  • the slice manager 20 is responsible for generating network slices, resource allocation, access selection, and access authorization.
  • the slice manager 20 completes the generation of the network slice by establishing the connection and bearer of each network slice.
  • the default network slice is selected for the terminal device according to the subscription information of the terminal device to implement the access selection.
  • the terminal device can be authorized to implement the access authorization when the terminal device can switch to the target network slice or access the target network slice.
  • the protocol configuration device 21 is configured to perform protocol configuration, and select and set the network entity function on the network slice according to the service type supported on the network slice. The protocol configuration information corresponding to the network slice to be accessed. Different types of services can be carried on different network slices. The terminal device can access different network slices to perform different services.
  • the first type of service When the first type of service is performed on the terminal device 14, it can access the source network slice, which is assumed to be the network slice 11.
  • the network slice control method provided by the embodiment of the present invention can be applied to the following three scenarios. Scenario 1: The terminal device 14 initially accesses the network slice 11, but since the first type of service is a service that consumes more network resources, after a period of time, the slice manager 20 initiates for the purpose of network resource optimization. The terminal device 14 is switched to the network slice 12, which is a low power default network slice or a lower load target network slice.
  • Scenario 2 The terminal device 14 initially accesses the network slice 11, and after a period of time, the terminal device 14 moves from the coverage of the radio access network device 111 of the network slice 11 to the coverage of the radio access network device 121 of the network slice 12. Scope, but the network slice 12 does not support the first type of service, only supports the default service. The default service can generally support the basic communication service requirements of the user, such as voice calls, short messages, and the like. To ensure that users can access the network normally, network disconnection will not occur. The slice manager 20 switches the terminal device 14 to the network slice 12.
  • Scenario 3 The terminal device 14 initially accesses the network slice 11.
  • the slice manager After a period of time, the slice manager initiates the terminal device to simultaneously access the network slice 12, so that the terminal device 14 can perform the second type of service. For example, the terminal device 14 has initially requested access to the network slice 12, but the access request is denied due to insufficient resources of the network slice 12. After a period of time, the network slice 12 is released by the user and the resources are sufficient, so the slice manager 20 initiates the process of the terminal device 14 accessing the network slice 12.
  • the terminal device in the embodiment of the present invention may be a handheld device, an in-vehicle device, a wearable device, a computing device, and various forms of user equipment (English: User Equipment, referred to as UE), and a mobile station (English: Mobile Station, referred to as : MS) and terminal (terminal).
  • UE User Equipment
  • MS Mobile Station
  • FIG. 2 is a schematic structural diagram of another network system provided by the present application.
  • the network slice is split in the core network, and all network slices share the radio access network device, for example, the network slice 21, the network slice 22, and the network slice 23 share the radio access network device 25.
  • all the network slices share the common core network control plane device, and the functions provided by the public core network control plane device include: mobility management, user authentication, and the like.
  • the slice manager and protocol configuration device related to the embodiments of the present invention also belong to a public core network control plane device.
  • Each network slice has its own core network user plane device and core network control plane device, and the functions provided by the core network control plane device of each network slice may include: session management and the like.
  • the core network control plane device in the network slice is connected to the core network user plane device through an interface, and the core network control plane device in the network slice and the public core network control plane device are also connected through the interface.
  • the public core network control plane device includes a mobility management device mobility management device 26, a home subscription user server 27, a policy and charging rules function device 28, a slice manager 29, and a protocol configuration device 30.
  • the functions of the mobility management device mobility management device 26, the home subscription user server 27, the policy and charging rule function device 28, the slice manager 29, and the protocol configuration device 30 can be referred to the description in the embodiment shown in FIG. No longer.
  • Solid line in Figure 2 Indicates the connection of the user plane, dotted line Indicates the connection of the control surface.
  • the first type of service When the first type of service is performed on the terminal device 24, it can access the source network slice, which is assumed to be the network slice 21.
  • the network slice control method provided by the embodiment of the present invention can be applied to the following two scenarios. Scenario 1: The terminal device 24 initially accesses the network slice 21, but since the first type of service is a service that consumes more network resources, after a period of time, the slice manager 29 initiates for the purpose of network resource optimization. The terminal device 24 is switched to the network slice 22, which is a low power default network slice or a lower load target network slice. In scenario 2, the terminal device 24 initially accesses the network slice 21, and after a period of time, the terminal device 24 moves from the coverage of the radio access network device 25 to the coverage of another radio access network device (not shown).
  • the other type of radio access network device does not support the first type of service, and only supports the default service.
  • the default service can generally support the basic communication service requirements of the user, such as voice calls and short messages. To ensure that users can access the network normally, network disconnection will not occur.
  • the slice manager 29 switches the terminal device 24 to the network slice 22.
  • the terminal device 24 initially accesses the network slice 21. After a period of time, the slice manager initiates the terminal device 24 to simultaneously access the network slice 22, so that the terminal device 24 can perform the second type of service. For example, the terminal device 24 has initially requested access to the network slice 22, but the access request is denied due to insufficient resources of the network slice 22. After a period of time, the network slice 22 is released by the user and the resources are sufficient, so the slice manager 29 initiates the process of the terminal device 24 accessing the network slice 22.
  • the terminal device in the embodiment of the present invention may be a handheld device, an in-vehicle device, a wearable device, a computing device, and various forms of UEs, MSs, terminals, and the like.
  • FIG. 3 is a signaling interaction diagram of Embodiment 1 of a network slice control method provided by the present application.
  • the embodiment can be applied to the network architecture shown in FIG. 1.
  • the source network slice is a network slice that the terminal device has accessed
  • the target network slice is a network slice to which the terminal device is to be switched.
  • Both the source network slice and the target network slice include a radio access network device and a core network user plane device.
  • the embodiment of the present invention can be applied to the scenario 1: the terminal device initially accesses the source network slice, but the service of the source network slice is a service that consumes network resources, and after a period of time, the core network management device is the network resource.
  • the terminal equipment is switched to the target network slice to reduce the load pressure of the source network slice, wherein the target network slice is a default network slice with low network resource consumption or a network slice with low load.
  • the network slice control method provided by the embodiment of the present invention includes the following steps:
  • the radio access network device of the source network slice sends information about the network status of the source network slice to the core network management device.
  • the core network management device receives information about the network status of the source network slice sent by the radio access network device of the source network slice.
  • the source network slice is a network slice that the terminal device accesses in advance according to user requirements.
  • the performance of the terminal device that has been accessed by the source network slice is degraded, and the network state of the source network slice can be monitored by the core network management device.
  • the core network management device switches some or all of the terminal devices that have accessed the source network slice to the target network slice to reduce the load pressure of the source network slice.
  • the source network sliced radio access network device sends the network state information of the source network slice to the core network management device, so that the core network management device can learn the network state of the source network slice, thereby optimizing the network resource of the source network slice according to the network state.
  • the radio access network device of the source network slice can periodically send information about the network status. For example, the radio access network device of the source network slice sends information about the network status every five minutes.
  • the source network slice and core network management device can pre-agreed the cycle.
  • the radio access network device of the source network slice may also trigger the transmission of information of the network status based on the event. For example, when the load of the source network slice is higher than a certain threshold, the information that sends the network status to the core network management device is triggered.
  • the network state information of the source network slice may include information about a network state of the radio access network device in the source network slice, and the network state information of the source network slice may include a network state of the core network user plane device in the source network slice.
  • the information, the network status information of the source network slice may also include information about the network status of the radio access network device in the source network slice, and information about the network status of the core network user plane device in the source network slice.
  • the network status information may include a network resource residual value or a load value.
  • the network status information is a ratio of the currently available resources to the total available resources of the network slice or a ratio of the current network load to the network maximum capacity.
  • the network status information may also include network status, for example, insufficient network resources or excessive load.
  • the radio access network device of the source network slice sends its own network state information to the core network management device.
  • the core network management device receives information about the network status sent by the radio access network device of the source network slice. If the core network management device and the mobility management device mobility management device are separately disposed on different physical entities, the radio access network device in the source network slice may first send information about its own network state to the mobility management device to move. sexual management equipment.
  • the mobility management device mobility management device then sends the network state information of the source network slice to the core network management device.
  • the core network management device receives information about the network status of the source network slice sent by the mobility management device mobility management device.
  • step S302 The core network management device determines whether the network state of the source network slice meets the first preset condition, and if yes, step S303 is performed.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the first preset threshold is: 10%
  • the second preset threshold is: 90%.
  • the core network management device determines that the network state of the source network slice satisfies the first preset. condition.
  • the first preset condition may also be: the network status is insufficient network resources or excessive load. When the network status information of the source network slice indicates that the network resource is insufficient or the load is too large, the core network management device determines that the network state of the source network slice satisfies the first preset condition.
  • the core network management device controls the terminal device to switch from the source network slice to the target network slice.
  • the core network management device may switch part or all of the terminal devices connected to the source network slice to the target network slice to reduce the load pressure of the source network slice.
  • the target network slice may be a default network slice with a lower network resource consumption.
  • the default network slice only supports the basic communication service requirements of the user, such as voice calls, short messages, and the like. Also, the default network slice supports large capacity users.
  • the target network slice is a network slice that satisfies the second preset condition.
  • the second preset condition may be: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the third preset threshold is: 50%
  • the fourth preset threshold is: 50%.
  • Each network slice may periodically or evently trigger to send its own network state information to the core network management device, so that the core network management device can learn the network state of each network slice, thereby loading the source network slice that the terminal device has accessed. If the network resource is insufficient or the network resources are insufficient, select a target network slice with a small load or sufficient network resources for slice switching.
  • the step of the core network management device controlling the terminal device to switch from the source network slice to the target network slice includes the following steps S3031-S3038, and the detailed description of each step is as follows:
  • S3031 The core network management device performs target network slice access authorization on the terminal device.
  • the core network management device records all terminal settings of the access source network slice.
  • the logo of the preparation acquires the identifiers of one or more terminal devices from the set of terminal device identifiers that have accessed the source network slice.
  • the identifier of the terminal device may be an International Mobile Subscriber Identification Number (IMSI).
  • IMSI International Mobile Subscriber Identification Number
  • the core network management device acquires subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the core network management device performs target network slice access authorization on the terminal device.
  • the subscription information herein may include indication information about whether the terminal device subscribes to the network to allow the core network management device to initiate a slice handover.
  • the subscription information may also include the quality of service (English: Quality of Service, QoS for short) information, and the QoS information may include: delay, false alarm rate, data transmission rate, bandwidth, and service priority.
  • QoS Quality of Service
  • the radio access network device of the source network slice sends the network state information of the source network slice to the core network management device
  • the identifier of the terminal device that is occupied by one or more network resources currently connected to the source network slice may also be occupied.
  • the core network management device obtains the identifier of the terminal device from the network state information, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the core network management device performs target network slice access authorization on the terminal device.
  • the core network management device may determine, in the following manner, that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the subscription information: if the subscription information of the terminal device includes the indication for accepting the core network management device The indication information of the initiated slice handover, the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device.
  • the core network management device can also be judged by other methods, which is not limited in this embodiment.
  • the core network management device may also consider the QoS information of the terminal device when determining that the terminal device that has accessed the source network slice needs to perform handover, and the number of the terminal devices that need to perform the slice switching may be preset by the core network management device. It can also be dynamically adjusted by the core network management device according to the network state of the source network slice.
  • the service priority in the QoS information is taken as an example. If the source network slice currently includes three terminal devices, namely, the terminal device 1, the terminal device 2, and the terminal device 3, wherein the service priority of the three terminal devices is They are: priority 1, priority 2, and priority 3.
  • the core network management device determines that the three terminal devices allow the core network management device to perform network slice switching control on the terminal device, and the number of terminal devices for performing slice switching in advance set by the core network management device is 2, then the core network management The terminal device 2 and the terminal device 3 with smaller priority devices are selected for slice switching. Therefore, the service of the user of the high-priority terminal device is not affected, so that the user of the low-priority terminal device switches to the default network slice, and the network disconnection does not occur. Avoid the situation where the source network is fragmented and the network is blocked, so that all terminal devices cannot access the network.
  • the core network management device sends a first slice control request to the terminal device by using the radio access network device of the source network slice.
  • the terminal device receives a first slice control request sent by the core network management device by the radio access network device sliced by the source network.
  • the first slice control request includes at least an identifier of the target network slice.
  • the identity of the target network slice is used by the terminal device to confirm which network slice to switch to.
  • the first slice control request may further carry an identifier of the request type to indicate what type of the first slice control request is.
  • the request type identifier carried by the first slice control request is a slice switch type identifier.
  • the core network management device may first send the first slice control request to the wireless access network device of the source network slice.
  • the radio access network device of the source network slice sends the first slice control request to the terminal device.
  • the terminal device receives the first slice control request sent by the radio access network device of the source network slice.
  • the core network management device may first send the first slice control request to the mobility management device of the control plane.
  • the mobility management device then sends the first slice control request to the radio access network device in the source network slice.
  • the radio access network device in the source network slice then sends the first slice control request to the terminal device.
  • the terminal device receives the first slice control request sent by the radio access network device in the source network slice.
  • the first slice control request further includes configuration indication information corresponding to the target network slice.
  • the configuration indication information is used to instruct the terminal device to perform protocol configuration according to the configuration indication information to access the target network slice.
  • the configuration indication information corresponding to the target network slice may be the protocol configuration information corresponding to the target network slice, the identifier of the target network slice, or the service type corresponding to the target network slice.
  • S3033 The terminal device determines to switch from the source network slice to the target network slice according to the first slice control request.
  • the core network management device sends a second slice control request to the radio access network device of the target network slice, and the radio access network device of the target network slice receives the second slice control request sent by the core network management device.
  • the second slice control request includes an identifier of the terminal device.
  • the second slice control request is used to indicate that the target network slice establishes a bearer for the terminal device.
  • the second slice control request may further carry an identifier of the request type to indicate what type of the second slice control request is.
  • the request type identifier carried by the second slice control request is a slice switch type identifier.
  • the target network slice establishes a bearer for the terminal device according to the second slice control request.
  • the target network slice establishes a control plane bearer of the terminal device to the radio access network device, and a control plane bearer of the radio access network device to the core network management device, and establishes a user plane bearer of the terminal device to the radio access network device, and The user access plane of the radio access network device to the core network user plane device.
  • the radio access network device of the target network slice After the target network slice establishes the bearer for the terminal device, the radio access network device of the target network slice sends a bearer setup complete confirmation message to the core network management device, and the core network management device receives the target network slice and sends the radio access network device to send The bearer setup completes the confirmation message.
  • the core network management device can determine that the target network slice has established a bearer for the terminal device according to the bearer setup complete confirmation message.
  • the core network management device sends a third slice control request to the radio access network device of the source network slice, and the radio access network device of the source network slice receives the third slice control request sent by the core network management device.
  • the third slice control request includes an identifier of the terminal device.
  • the third slice control request is used to indicate that the source network slice is removed and the bearer established for the terminal device.
  • the third slice control request may further carry an identifier of the request type to indicate what type of the third slice control request is.
  • the request type identifier carried by the third slice control request is a slice switch type identifier.
  • the source network slice removes the bearer established for the terminal device according to the third slice control request.
  • the source network slice removes the user plane bearer of the terminal device to the radio access network device, and the control plane bearer of the radio access network device to the core network management device, and removes the user plane bearer of the terminal device to the radio access network device, and The user access plane of the radio access network device to the core network user plane device. Deleting the bearer established for the terminal device can release the corresponding resources and save network resources.
  • the radio access network device of the source network slice sends a slice handover success message to the core network management device.
  • the core network management device receives a slice handover success message sent by the radio access network device of the source network slice.
  • the method further includes the step S30310: the terminal device sends a slice control response message to the core network management device by using the radio access network device of the source network slice.
  • the core network management device receives a slice control response message sent by the terminal device through the radio access network device sliced by the source network.
  • the slice control response message is used to indicate that the terminal device accepts the slice switching operation.
  • the core network management device triggers execution of step S3034.
  • the method further includes step S30311: the terminal device performs protocol configuration according to the configuration indication information corresponding to the target network slice. Into the target network slice.
  • the order of execution of steps S30310 and S30311 is not limited.
  • the configuration indication information corresponding to the target network slice may be protocol configuration information corresponding to the target network slice, including which protocol layers need to be configured, and which functions need to be configured in each protocol layer.
  • the terminal device performs corresponding configuration according to protocol configuration information corresponding to the target network slice.
  • the configuration indication information corresponding to the target network slice may also be an identifier of the target network slice, and the terminal device locally stores protocol configuration information corresponding to the identifier of the different network slice.
  • the terminal device searches for protocol configuration information corresponding to the identifier of the target network slice according to the identifier of the target network slice sent by the core network management device, and performs corresponding configuration according to the protocol configuration information.
  • the configuration indication information corresponding to the target network slice may also be a service type corresponding to the target network slice.
  • the terminal device locally stores the protocol configuration information corresponding to the network slice of the different service type, and the terminal device searches for the protocol configuration information corresponding to the service type of the target network slice according to the service type of the target network slice sent by the core network management device, and configures according to the protocol. The information is configured accordingly.
  • the core network management device may obtain protocol configuration information corresponding to the target network slice from itself.
  • the terminal device in the embodiment of the present invention is a terminal device having a protocol configuration function.
  • the first implementation manner only one basic protocol configuration information is stored on the terminal device, and after obtaining the protocol configuration information corresponding to the target network slice, the terminal device performs configuration on the basis of the basic protocol configuration information to ensure its own The protocol stack can match the target network slice.
  • the second implementation manner a plurality of different protocol configuration information are stored on the terminal device, and the terminal device acquires the mesh After the protocol configuration information corresponding to the network slice is selected, the protocol configuration information with the same protocol configuration information corresponding to the target network slice is selected to complete the configuration.
  • the terminal device switches from the source network slice to the target network slice.
  • step S3032 and step S3034 in this embodiment is not specifically limited.
  • the first access control request may be sent to the terminal device by using the radio access network device of the source network slice, and then the radio access network is sliced to the target network.
  • the device sends a second slice handover control request.
  • the second slice switch control request may be sent to the radio access network device of the target network slice, and then the radio access network device sliced through the source network. Sending a first slice control request to the terminal device.
  • Steps S3035 and S3038 have a timing relationship, that is, the bearer between the terminal device and the target network slice is first established, and then the bearer between the terminal device and the source network slice is removed. This ensures that the services on the terminal device are not interrupted.
  • the terminal device has access to an evolved large bandwidth (evolved Massive Broadband, e.g., eMBB) network slice for video services.
  • eMBB evolved large bandwidth
  • the eMBB service is a service that consumes more network resources
  • the eMBB network Due to the large number of terminal devices that are accessed, the load is too large, and the remaining network resources are too small to support the normal use of all the terminal devices that are currently connected.
  • the terminal device is disconnected.
  • the device switches some or all of the terminal devices that have accessed the eMBB network slice from the eMBB to the default network slice or other network slice that meets the second preset condition, and reduces the load pressure of the eMBB network slice.
  • the second preset condition may be, for example, that the load value is less than or equal to a certain threshold value or the network resource residual value is greater than or equal to a certain threshold value.
  • the network slice control method provided by the embodiment of the present invention accesses the source network slice by the terminal device, and the radio access network device of the source network slice sends the network state information to the core network management device, and the core network management device receives the wireless of the source network slice. Information about the network status sent by the access network device. If the network state of the source network slice satisfies the first preset condition, the core network management device controls the terminal device that has accessed the source network slice to switch from the source network slice to the target network slice, thereby reducing the network load of the source network slice and implementing the source Resource optimization for network slicing.
  • the embodiment shown in FIG. 3 can also be applied to scenario 2: the terminal device initially accesses the source network slice, and after a period of time, the terminal device moves from the coverage of the radio access network device in the source network slice to the target network slice.
  • the coverage of the radio access network device in the target network segment does not support the service corresponding to the source network slice.
  • the core network management device switches the terminal device from the source network slice to the target network slice.
  • the radio access network device in the target network slice is named as the target radio access network device
  • the radio access network device in the source network slice is named as the source radio access network device, and the source radio access network device. It is the radio access network device where the terminal device currently resides.
  • each step is similar to the implementation process of each step in the scenario 1 shown in FIG. 3, except that, in step S302, the terminal device periodically sends a measurement report to the radio access network device of the source network slice.
  • the channel quality between the terminal device and the source radio access network device is fed back to the source radio access network device, and the channel quality can be reflected by the signal measurement value.
  • the measurement report may also be that the terminal device performs feedback based on the measurement report request sent by the source radio access network device.
  • the source radio access network device sends a measurement report report request to the terminal device, and the terminal device receives the measurement report report request sent by the source radio access network device.
  • the terminal device sends the measurement report to the source radio access network device.
  • the source radio access network device receives the measurement report sent by the terminal device.
  • the measurement report can also be a downlink measurement of the terminal device
  • the result is reported to the source radio access network device when a certain measurement event is met.
  • the measurement event may be: the downlink signal measurement value of the terminal device to the source radio access network device is lower than a certain threshold value, and the downlink device measurement value of the terminal device to the target radio access network device is higher than a certain threshold value.
  • the measurement event may also be: the downlink signal measurement value of the terminal device to the target radio access network device is higher than a certain threshold value.
  • the target radio access network device may be a neighboring radio access network device of the source radio access network device.
  • the measurement report includes a first measurement value obtained by the terminal device measuring the downlink signal of the source radio access network device, a second measurement value obtained by the terminal device measuring the downlink signal of the target radio access network device, and a target wireless ID of the access network device.
  • the source radio access network device determines, according to the measurement report, that the measured value of the source device to the source radio access network device is lower than a certain threshold, or when the measured value of the source device to the source radio access network device is lower than a certain threshold.
  • the source radio access network device sends the information of the network state to the core network management device.
  • the core network management device receives information about the network status sent by the source radio access network device.
  • the information about the network status includes a first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device, and a second measurement value obtained by the terminal device measuring the downlink signal sent by the target radio access network device. And the identity of the target radio access network device.
  • the first preset condition in the scenario is that the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the core network management device determines, according to information about the network status sent by the source radio access network device, whether the second measurement value is greater than the first measurement value, and if yes, indicating that the terminal device is moved by the coverage of the source radio access network device to the target wireless device.
  • the coverage of the access network device the core network management device searches for the service type corresponding to the target radio access network device according to the identifier of the target radio access network device, and searches for the source radio access network device according to the identifier of the source radio access network device.
  • the corresponding business type is that the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the core network management device determines whether the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device. If yes, the core network management device triggers switching the terminal device from the source network slice to the target network slice.
  • the identifier of the source radio access network device may be carried in the network status information and sent to the core network management device.
  • the information about the network status further includes the identifier of the terminal device, and the core network management device performs the target network slice access authorization for the terminal device, where the core network management device obtains the identifier of the terminal device from the network state information, and According to the identifier of the terminal device, the subscription information corresponding to the identifier of the terminal device is obtained from the home subscription user server or the policy and charging rule function device. If the core network management device determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the core network management device performs target network slice access authorization on the terminal device.
  • the service type corresponding to the radio access network device in the target network slice is similar to the service corresponding to the radio access network device in the source network slice, and therefore, the terminal device needs to be according to the core network.
  • the configuration indication information corresponding to the target network slice sent by the management device is configured by the protocol to access the target network slice. Therefore, in scenario 2, the terminal device needs to perform step S30311.
  • the source network slice sends the network state information to the core network management device by using the terminal device to access the source network slice, and the core network management device receives the network state information sent by the source network slice. If the network status information meets the first preset condition, the core network management device controls the terminal device that has accessed the source network slice to switch from the source network slice to the target network slice, thereby alleviating the load pressure of the source network slice, and the better service source. A terminal device that does not undergo slice switching in the network slice, avoiding network fragmentation of the source network and causing all terminals The device cannot access the network.
  • the terminal device in the source network slice that can perform the slice switching can access the target network slice and maintain the network connection instead of directly disconnecting the network.
  • the terminal device does not need to perform all operations of re-entering, because the terminal device has access to the source network slice, and the network access process based on the terminal device may be omitted, such as synchronization, random access, and the like.
  • the core network control functions shared between different network slices can also be shared. For example, user authentication does not need to be re-authenticated when the terminal device switches between different network slices.
  • the signaling interaction process of the radio access network device in the source network slice may also be performed by the core network user plane device in the source network slice.
  • the signaling interaction process of the radio access network device in the target network slice may also be performed by the core network user plane device in the target network slice.
  • the core network user plane device in the source network slice sends information about the network state of the source network slice to the core network management device.
  • the processing flow of the core network user plane device in the source network slice is similar to the processing procedure of the radio access network device in the source network slice in the embodiment shown in FIG. 3, and details are not described herein again.
  • FIG. 4 is a signaling interaction diagram of Embodiment 2 of a network slice control method provided by the present application.
  • This embodiment can be applied to the network architecture shown in FIG. 2.
  • the source network slice is a network slice that the terminal device has accessed
  • the target network slice is a network slice to which the terminal device is switched.
  • Both the source network slice and the target network slice include a core network control plane device and a core network user plane device.
  • the embodiment of the invention can be applied to scene one and scene two.
  • the network slice control method provided by the embodiment of the present invention includes the following steps:
  • the core network control plane device of the source network slice sends information about the network state of the source network slice to the core network management device.
  • the core network management device receives information about the network status of the source network slice sent by the core network control plane device of the source network slice.
  • step S402 The core network management device determines whether the network state of the source network slice meets the first preset condition, and if yes, step S403 is performed.
  • the core network management device controls the terminal device to switch from the source network slice to the target network slice.
  • the step of the core network management device controlling the terminal device to switch from the source network slice to the target network slice includes the following steps S4031-S4038, and the detailed description of each step is as follows:
  • S4031 The core network management device performs target network slice access authorization on the terminal device.
  • the core network management device sends a first slice control request to the terminal device by using a core network control plane device of the source network slice.
  • the terminal device receives the first slice control request sent by the core network management device by the core network control plane device of the source network slice.
  • S4033 The terminal device determines to switch from the source network slice to the target network slice according to the first slice control request.
  • the core network management device sends a second slice control request to the core network control plane device of the target network slice, and the core network control plane device of the target network slice receives the second slice control request sent by the core network management device.
  • the target network slice establishes a bearer for the terminal device according to the second slice control request.
  • the core network control plane device of the target network slice sends a bearer setup completion confirmation message to the core network management device, and the core network management device receives the target network slice to send the core network control plane device.
  • the bearer setup completes the confirmation message.
  • the core network management device sends a third slice control request to the core network control plane device of the source network slice, the source The core network control plane device of the network slice receives the third slice control request sent by the core network management device.
  • the source network slice removes the bearer established for the terminal device according to the third slice control request.
  • the core network control plane device of the source network slice sends a slice handover success message to the core network management device.
  • the core network management device receives the slice switching success message sent by the core network control plane device of the source network slice.
  • the method further includes the step S40310: the terminal device sends a slice control response message to the core network management device by using the core network control plane device of the source network slice.
  • the core network management device receives a slice control response message sent by the terminal device through the core network control plane device of the source network slice.
  • the slice control response message is used to indicate that the terminal device accepts the slice switching operation.
  • the core network management device triggers execution of step S4034.
  • the method further includes step S40311: the terminal device performs protocol configuration according to the configuration indication information corresponding to the target network slice. Into the target network slice.
  • the order of execution of steps S40310 and S40311 is not limited.
  • the network state information of the source network slice includes network state information of the core network control plane device of the source network slice and/or network state information of the core network user plane device of the source network slice.
  • the core network management device sends the first slice control request to the core network control plane device in the source network slice.
  • the core network control plane device in the source network slice sends the first slice control request to the radio access network device, and the radio access network device sends the first slice control request to the terminal device.
  • the establishing, by the target network slice, the bearer for the terminal device according to the second slice control request includes: establishing a control plane bearer of the terminal device to the access network device, controlling plane bearer of the access network device to the control device of the core network, and controlling the core network.
  • the device is carried by the control plane of the network slice manager, and establishes a user plane bearer of the terminal device to the access network device and a user plane bearer of the access network device to the core network user plane device.
  • Deleting the bearer established for the terminal device according to the third slice control request includes: removing the control plane bearer of the terminal device to the access network device, controlling the bearer of the access network device to the control device of the core network, and controlling the core network.
  • the face device is hosted on the control plane of the network slice manager.
  • the user plane bearer of the terminal equipment to the access network equipment and the user plane bearer of the access network equipment to the core network user plane equipment are removed.
  • the terminal network device accesses the source network slice, and the core network control plane device of the source network slice sends the network state information to the core network management device, and the core network management device receives the core of the source network slice. Information about the network status sent by the network control plane device. If the network state of the source network slice satisfies the first preset condition, the core network management device controls the terminal device that has accessed the source network slice to switch from the source network slice to the target network slice, thereby reducing the network load of the source network slice and implementing the source Network resource optimization for network slicing.
  • FIG. 5 is a signaling interaction diagram of Embodiment 3 of a network slice control method provided by the present application.
  • the embodiment can be applied to the network architecture shown in FIG. 1.
  • the source network slice is a network slice that the terminal device has accessed
  • the target network slice is a network slice that the terminal device fails to access.
  • Both the source network slice and the target network slice include a radio access network device and a core network user plane device.
  • the embodiment of the present invention can be applied to scenario 3: the terminal device first accesses to The source network is sliced. After a period of time, in order to meet the requirements of the terminal device for performing other types of services, the core network management device initiates the terminal device to simultaneously access the target network slice.
  • the network slice control method provided by the embodiment of the present invention includes the following steps:
  • the radio access network device of the target network slice sends information about the network status of the target network slice to the core network management device, and the core network management device receives the network status information of the target network slice sent by the radio access network device of the target network slice. .
  • the information about the network status of the target network slice may include network status information of the radio access network device of the target network slice, and the network status information of the target network slice may include information about the network status of the core network user plane device in the target network slice.
  • the network state information of the target network slice may also include information about the network state of the radio access network device in the target network slice, and information about the network state of the core network user plane device in the target network slice.
  • the network status information may include a network resource residual value or a load value.
  • the network status information is a ratio of the currently available resources to the total available resources of the network slice or a ratio of the current network load to the network maximum capacity.
  • the information of the network status may also include the network status, for example, the network resources are sufficient or the load is small.
  • step S502 The core network management device determines whether the network state of the target network slice meets the third preset condition, and if yes, step S503 is performed.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the fifth preset threshold is: 90%.
  • the sixth preset threshold is: 10%.
  • the third preset condition may be: the network state is sufficient for network resources or the load is small.
  • S503 The core network management device controls the terminal device to access the target network slice.
  • the step of the core network management device controlling the terminal device to access the target network slice includes the following steps S5031-S5036, and the detailed description of each step is as follows:
  • S5031 The core network management device performs target network slice access authorization on the terminal device.
  • the core network management device obtains the identifier of the terminal device from the pre-recorded information.
  • the identifier of the terminal device may be an IMSI or the like.
  • the core network management device acquires subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slice access control on the terminal device according to the subscription information, the core network management device performs target network slice access authorization on the terminal device.
  • the subscription information herein may include indication information about whether the terminal device subscribes to the network to allow the core network management device to initiate the slice access.
  • the subscription information may further include QoS information of the user, where the QoS information may include one or more of a delay, a false alarm rate, a data transmission rate, a bandwidth, and a service priority.
  • the core network management device determines, according to the subscription information, that the terminal device allows the core network management device to perform network slice access control on the terminal device, and may determine the following manner: if the subscription information of the terminal device includes The indication information of the slice access, the core network management device determines that the terminal device allows the core network management device to perform network slice access control on the terminal device.
  • the core network management device can also be judged by other methods, which is not limited in this embodiment.
  • the QoS information of the terminal device may also be considered, and the bandwidth in the QoS information is taken as an example for description, if the terminal device
  • the subscription information includes indication information for indicating that the slice access initiated by the core network management device is accepted. And the bandwidth in the subscription information can meet the service corresponding to the target network slice, and the core network management device determines that the terminal device allows the core network management device to perform network slice access control on the terminal device.
  • the core network management device sends a fourth slice control request to the terminal device by using the radio access network device of the source network slice, and the terminal device receives the fourth slice control request sent by the core network management device by the radio access network device sliced by the source network. .
  • the fourth slice control request includes an identifier of the target network slice and configuration indication information corresponding to the target network slice.
  • the identity of the target network slice is used by the terminal device to confirm which network slice is newly accessed.
  • the configuration indication information corresponding to the target network slice may be the protocol configuration information corresponding to the target network slice, the identifier of the target network slice, or the service type corresponding to the target network slice.
  • the fourth slice control request may further carry an identifier of the request type to indicate what type of the fourth slice control request is.
  • the request type identifier carried by the fourth slice control request is a slice access type identifier.
  • the terminal device determines an access target network slice according to the fourth slice control request, and performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice.
  • the configuration indication information corresponding to the target network slice may be protocol configuration information corresponding to the target network slice, including which protocol layers need to be configured, and which functions need to be configured in each protocol layer.
  • the terminal device performs corresponding configuration according to protocol configuration information corresponding to the target network slice.
  • the configuration indication information corresponding to the target network slice may also be an identifier of the target network slice.
  • the terminal device locally stores the protocol configuration information corresponding to the identifier of the different network slice, and the terminal device searches for the protocol configuration information corresponding to the identifier of the target network slice according to the identifier of the target network slice sent by the core network management device, and performs the protocol configuration information according to the protocol configuration information. Corresponding configuration.
  • the configuration indication information corresponding to the target network slice may also be a service type corresponding to the target network slice.
  • the terminal device locally stores the protocol configuration information of the network slice of the different service type, and the terminal device searches for the protocol configuration information corresponding to the service type of the target network slice according to the service type of the target network slice sent by the core network management device, and configures the information according to the protocol. Configure accordingly.
  • the terminal device in the embodiment of the present invention is a terminal device having a protocol configuration function.
  • the first implementation manner only one basic protocol configuration information is stored on the terminal device, and after obtaining the protocol configuration information corresponding to the target network slice, the terminal device performs configuration on the basis of the basic protocol configuration information to ensure its own The protocol stack can match the target network slice.
  • the second implementation manner is: the terminal device stores a plurality of different protocol configuration information, and after acquiring the protocol configuration information corresponding to the target network slice, the terminal device selects the protocol configuration information that is the same as the protocol configuration information corresponding to the target network slice. The configuration can be completed.
  • the core network management device sends a fifth slice control request to the radio access network device of the target network slice, and the radio access network device of the target network slice receives the fifth slice control request sent by the core network management device.
  • the fifth slice control request includes an identifier of the terminal device, and the fifth slice control request is used to indicate that the target network slice establishes a bearer for the terminal device.
  • the fifth slice control request may further carry an identifier of the request type to indicate what type of the fifth slice control request is.
  • the request type identifier carried by the fifth slice control request is a slice access class. Type identification.
  • the target network slice establishes a bearer for the terminal device according to the fifth slice control request.
  • the target network slice establishes a control plane bearer of the terminal device to the radio access network device, and a control plane bearer of the radio access network device to the core network management device, and establishes a user plane bearer of the terminal device to the radio access network device, and The user access plane of the radio access network device to the core network user plane device.
  • the radio access network device of the target network slice sends a bearer setup completion confirmation message to the core network management device.
  • the core network management device receives the bearer setup completion confirmation message sent by the radio access network device of the target network slice.
  • the terminal device requests access to the target network slice in advance, but because the network resource of the target network slice is insufficient or the load is large, the terminal device fails to access, and the core network management device requests the access failure.
  • the information recorded includes: the identifier of the terminal device, the identifier of the target network slice that the terminal device requests to access, and the like.
  • the target network slice In order to be able to know the state information of the target network slice in time, the target network slice periodically or evently triggers sending network state information to the core network management device, and the core network management device learns the network state of the target network slice according to the network state information sent by the target network slice. .
  • the core network management device triggers the terminal device to simultaneously access the target network slice. If the preset time period is exceeded, the target network slice The network state of the network does not meet the third preset condition, and the core network management device does not trigger the terminal device to simultaneously access the target network slice.
  • the preset time period is, for example, 30 minutes.
  • the method further includes the step S5037: the terminal device sends a slice control response message to the core network management device by using the radio access network device of the source network slice.
  • the core network management device receives a slice control response message sent by the terminal device through the radio access network device sliced by the source network.
  • the slice control response message is used to indicate that the terminal device accepts a slice access operation.
  • the core network management device triggers execution of step S5034.
  • step S5032 and step S5034 in this embodiment is not specifically limited.
  • the difference between the embodiment of the present invention and the first embodiment shown in FIG. 3 is that the terminal device accesses two network slices at the same time, and the terminal device accesses the target network slice simultaneously on the premise of accessing the source network slice, that is, the terminal device is allowed. There are two types of business at the same time.
  • the terminal device has access to an eMBB network slice for video service.
  • the eMBB network slice does not support the service of reading the meter power.
  • the terminal device initiates an access request to the network slice capable of running the degree of reading the power on the smart meter.
  • the load of the network slice capable of running the degree of reading the power on the smart meter is large, and the network resource remains. The value is small and cannot meet the requirements for reconnecting an end device.
  • the core network management device rejects the access request of the terminal device.
  • the core network management device When the network slice capable of running the degree of reading the power on the smart meter is released by the user, and the resource is sufficient, the core network management device requests the terminal that previously accesses the network slice. The device accesses the network slice to meet the service requirements of the terminal device running the degree of reading the power on the smart meter.
  • the network slice control method provided by the embodiment of the present invention sends the network state information to the core network management device by using the target network slice that the terminal device fails to access, and the core network management device receives the network state information sent by the target network slice. If the network state information of the target network slice satisfies the third preset condition, the core network management device controls the terminal device that has accessed the source network slice to simultaneously access the target network slice, thereby satisfying the terminal device when running the service of the source network slice. The requirements of the business corresponding to the target network slice can be run.
  • the signaling interaction process of the radio access network device in the target network slice may also be performed by the core network user plane device in the target network slice.
  • the core network user plane device in the target network slice sends information about the network state of the target network slice to the core network management device.
  • the processing flow of the core network user plane device in the target network slice is similar to the processing procedure of the radio access network device in the target network slice in the embodiment shown in FIG. 5, and details are not described herein again.
  • FIG. 6 is a signaling interaction diagram of Embodiment 4 of a network slice control method provided by the present application.
  • This embodiment can be applied to the network architecture shown in FIG. 2.
  • the source network slice is a network slice that the terminal device has accessed
  • the target network slice is a network slice that the terminal device fails to access.
  • Both the source network slice and the target network slice include a core network control plane device and a core network user plane device.
  • the embodiment of the invention can be applied to the third scenario.
  • the network slice control method provided by the embodiment of the present invention includes the following steps:
  • the core network control plane device of the target network slice sends the network state information of the target network slice to the core network management device, and the core network management device receives the network state information of the target network slice sent by the core network control plane device of the target network slice. .
  • step S602 The core network management device determines whether the network state of the target network slice meets the third preset condition. If yes, step S603 is performed.
  • S603 The core network management device controls the terminal device to access the target network slice.
  • the step of the core network management device controlling the terminal device to access the target network slice includes the following steps S6031-S6036, and the detailed description of each step is as follows:
  • the core network management device performs target network slice access authorization on the terminal device.
  • the core network management device sends a fourth slice control request to the terminal device by using the core network control plane device of the source network slice, and the terminal device receives the fourth slice control request sent by the core network management device by the core network control plane device of the source network slice.
  • the terminal device determines an access target network slice according to the fourth slice control request, and performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice.
  • the core network management device sends a fifth slice control request to the core network control plane device of the target network slice, and the core network control plane device of the target network slice receives the fifth slice control request sent by the core network management device.
  • the target network slice establishes a bearer for the terminal device according to the fifth slice control request.
  • the core network control plane device of the target network slice sends a bearer setup completion confirmation message to the core network management device.
  • the core network management device receives the bearer setup completion confirmation message sent by the core network control plane device of the target network slice.
  • the method further includes the step S6037: the terminal device sends a slice control response message to the core network management device by using the core network control plane device of the source network slice.
  • the core network management device receives a slice control response message sent by the terminal device through the core network control plane device of the source network slice.
  • the slice control response message is used to indicate that the terminal device accepts a slice access operation.
  • the core network management device triggers execution of step S6034.
  • step S6032 and step S6034 in this embodiment is not specifically limited.
  • the implementation process of steps S601-S603 and S6031-S6037 in the embodiment of the present invention is similar to the implementation processes of steps S501-S503 and S5031-S5037 in the third embodiment shown in FIG. 5, and details are not described herein again.
  • Main points of different points The information of the network state of the target network slice includes network state information of the core network control plane device in the target network slice and/or information of the network state of the core network user plane device in the target network slice.
  • the core network management device sends a fourth slice control request to the core network control plane device in the source network slice.
  • the core network control plane device in the source network slice sends the fourth slice control request to the radio access network device, and the radio access network device sends the fourth slice control request to the terminal device.
  • the terminal network device accesses the source network slice, and the target network slice that the terminal device fails to access sends the first network state information to the core network management device, and the core network management device receives the target network slice. Information about the status of the network being sent. If the network status information meets the third preset condition, the core network management device controls the terminal device that has accessed the source network slice to simultaneously access the target network slice, so that the terminal device can run the target network when running the service of the source network slice. Slice the corresponding business needs.
  • the radio access network device of the source network slice that the terminal device has accessed transmits information of its own network state to the core network management device.
  • the core network management device receives information about the network status sent by the radio access network device of the source network slice.
  • the core network management device determines whether the network state of the source network slice satisfies the first preset condition or the third preset condition. If the first preset condition is met, the core network management device controls the terminal device to switch from the source network slice to the target network slice. . If the third preset condition is met, the core network management device controls the terminal device that has previously requested access to the source network slice but fails to access the source network slice.
  • FIG. 7 is a signaling interaction diagram of Embodiment 5 of a network slice control method provided by the present application.
  • the process of initially accessing the source network slice of the terminal device will be described.
  • This embodiment can be applied to the network architecture shown in FIG.
  • the process includes steps S701-S707, and the detailed description of each step is as follows.
  • the terminal device sends a slice access request to the core network management device by using the radio access network device of the source network slice, and the core network management device receives the slice access request sent by the terminal device by the radio access network device sliced by the source network.
  • the slice access request includes an identifier of the source network slice.
  • the slice access request further includes an identifier of the terminal device.
  • the core network management device performs source network slice access authorization corresponding to the identity of the source network slice of the terminal device according to the slice access request.
  • the core network management device obtains the identifier of the terminal device from the slice access request, and obtains the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device, if The core network management device determines that the terminal device can access the source network slice according to the subscription information and the identifier of the source network slice, and the core network management device performs the source network slice access authorization corresponding to the identity of the source network slice to the terminal device.
  • the access authorization increases the success rate when the terminal device accesses the source network slice.
  • the core network management device may determine the following manner: if the subscription information of the terminal device includes the service corresponding to the source network slice, the core network management The device determines that the terminal device can access the source network slice.
  • the core network management device may also use other methods for determining. For example, when the bandwidth of the subscription information can meet the service corresponding to the source network slice, the core network management device determines that the terminal device can access the source network slice. This embodiment does not limit this.
  • the core network management device sends the configuration indication information corresponding to the source network slice to the terminal device by using the radio access network device of the source network slice.
  • the terminal device receives configuration indication information corresponding to the source network slice sent by the core network management device by the radio access network device sliced by the source network.
  • the configuration indication information corresponding to the source network slice may be the protocol configuration information corresponding to the source network slice, the identifier of the source network slice, or the service type corresponding to the source network slice.
  • the terminal device performs protocol configuration according to the configuration indication information corresponding to the source network slice to access the source network slice.
  • the configuration indication information corresponding to the source network slice may be protocol configuration information related to the source network slice, including which protocol layers need to be configured, and which functions need to be configured for each protocol layer.
  • the terminal device performs corresponding protocol configuration according to the protocol configuration information.
  • the configuration indication information corresponding to the source network slice may also be an identifier of the source network slice.
  • the terminal device locally stores the protocol configuration information corresponding to the identifier of the different network slice, and the terminal device searches for the protocol configuration information corresponding to the identifier of the source network slice according to the identifier of the source network slice sent by the core network management device, and performs the protocol configuration information according to the protocol configuration information.
  • the corresponding protocol configuration is corresponding protocol configuration information related to the source network slice, including which protocol layers need to be configured, and which functions need to be configured for each protocol layer.
  • the terminal device performs corresponding protocol configuration according to the protocol configuration information.
  • the configuration indication information corresponding to the source network slice may also be an identifier of the source network slice.
  • the configuration indication information corresponding to the source network slice may also be a service type corresponding to the source network slice.
  • the terminal device locally stores the protocol configuration information corresponding to the network slice of the different service type, and the terminal device searches for the protocol configuration information corresponding to the service type of the source network slice according to the service type of the source network slice sent by the core network management device, and configures according to the protocol.
  • the information is configured for the corresponding protocol. It should be noted that different network slices carry different types of services, and different protocol configurations are required.
  • the core network management device sends a sixth slice control request to the radio access network device of the source network slice, and the radio access network device of the source network slice receives the sixth slice control request sent by the core network management device.
  • the sixth slice control request includes an identifier of the terminal device.
  • the sixth slice control request may further carry an identifier of the request type to indicate what type of the sixth slice control request is.
  • the request type identifier carried by the sixth slice control request is an access type identifier.
  • S706 The source network slice establishes a bearer for the terminal device according to the sixth slice control request.
  • the source network slice establishes a control plane bearer of the radio access network device of the terminal device to the source network slice, and a control plane bearer of the radio access network device that establishes the source network slice to the core network management device, and establishes the terminal device to the source.
  • the radio access network device of the source network slice After the source network slice establishes the bearer for the terminal device, the radio access network device of the source network slice sends a bearer setup completion confirmation message to the core network management device, and the core network management device receives the source network slice and sends the radio access network device to send The bearer setup completes the confirmation message.
  • the bearer setup complete confirmation message is used to indicate that the source network slice has established a bearer for the terminal device, and the bearer setup complete confirmation message may further carry the identifier of the terminal device. At this point, the terminal device successfully accesses the source network slice.
  • steps S703 and S705 are not specifically limited.
  • the process of initially accessing the source network slice of the terminal device is substantially the same as the process of the embodiment shown in FIG. 7.
  • the difference is mainly reflected in: the related operation of the radio access network device corresponding to the source network slice. It is completed by the core network control plane device of the source network slice.
  • the terminal device sends a slice access request to the core network management device through the core network control plane device of the source network slice, and the core network management device receives the slice connection sent by the terminal device through the core network control plane device of the source network slice. Into the request.
  • the terminal device sends a slice access request to the radio access network device, and the radio access network device receives the slice access request sent by the terminal device, and the slice access request is sent.
  • the core network control plane device sent to the source network slice, and the core network control plane device of the source network slice sends the slice access request to the core network management device.
  • the core network management device receives the slice access request sent by the core network control plane device of the source network slice.
  • FIG. 8 is a signaling interaction diagram of Embodiment 6 of a network slice processing method provided by the present application. As shown in FIG. 8, the network slice control method provided by the embodiment of the present invention is described in detail on the basis of the first embodiment shown in FIG. 3, and the case where the slice manager and the protocol configuration device in the core network management device are separately set:
  • step S801 The slice manager determines whether the network state of the source network slice meets the first preset condition, and if yes, step S802 is performed.
  • step S801 The implementation principle of step S801 is similar to that of step S302, and details are not described herein again.
  • the slice manager sends a subscription information acquisition request to the home subscription user server/policy and charging rule function device.
  • the home subscription subscriber server/policy and charging rule function device receives the subscription information acquisition request sent by the slice manager.
  • the subscription information acquisition request includes an identifier of the terminal device.
  • the subscription information acquisition request is used to indicate that the subscription information of the terminal device is acquired.
  • the home subscription subscriber server/policy and charging rule function device sends the subscription information corresponding to the identifier of the terminal device to the slice manager according to the subscription information acquisition request.
  • the slice manager receives the subscription information of the terminal device sent by the home subscription subscriber server/policy and charging rule function device.
  • step S3031 the process of performing the target network slice access authorization on the terminal device by the slice manager can be referred to the description in step S3031, and details are not described herein again.
  • the slice manager sends a protocol configuration information acquisition request to the protocol configuration device.
  • the protocol configuration device receives the protocol configuration information acquisition request sent by the slice manager.
  • the protocol configuration information obtaining request carries the identifier of the target network slice.
  • the protocol configuration information acquisition request is used to request to obtain protocol configuration information of the target network slice.
  • the protocol configuration device searches for protocol configuration information corresponding to the target network slice according to the protocol configuration information acquisition request.
  • the protocol configuration information includes protocol stack configuration information corresponding to the target network slice that the terminal device needs to adopt.
  • the protocol configuration device stores an identifier of the network slice and protocol configuration information corresponding to the identifier of the network slice.
  • the protocol configuration device determines the protocol configuration information corresponding to the target network slice according to the identifier of the target network slice in the protocol configuration information acquisition request.
  • the protocol configuration device sends the protocol configuration information to the slice manager, and the slice manager receives the protocol configuration information sent by the protocol configuration device.
  • the slice manager sends the protocol configuration information to the terminal device, and the terminal device receives the protocol configuration information.
  • the slice manager may send the protocol configuration information to the terminal device by using the mobility management device and the radio access network device of the source network slice.
  • the terminal device performs protocol configuration according to the protocol configuration information to access the target network slice.
  • the network slice control method provided by the embodiment of the present invention is different from the network slice control method shown in FIG. 3 in that the slice manager and the protocol configuration device in the core network management device in the embodiment of the present invention are separately set, and the target network is determined.
  • the slice manager performs the target network slice access authorization on the terminal device, the slice manager sends a protocol configuration information acquisition request to the protocol configuration device, and the protocol configuration device determines the target according to the protocol configuration information acquisition request.
  • the protocol configuration information of the network slice the slice manager receives the protocol configuration information sent by the protocol configuration device and sends it to the terminal device.
  • the slice manager and the protocol configuration device in the core network management device in the embodiment of the invention provided in FIG. 3 are integrated, and the protocol configuration information corresponding to the target network slice can be directly determined.
  • the source network slice sends the network state information to the slice manager, and the slice manager receives the network state information sent by the source network slice. If the network state of the source network slice satisfies the first preset condition, the slice manager performs the access authorization of the target network slice to the terminal device, and the slice manager sends a protocol configuration information acquisition request to the protocol configuration device, and the protocol configuration device configures the information according to the protocol.
  • the obtaining request determines the protocol configuration information corresponding to the target network slice, and the protocol configuration device sends the protocol configuration information corresponding to the target network slice to the slice manager, and the slice manager receives the protocol configuration information corresponding to the target network slice.
  • the slice manager sends protocol configuration information corresponding to the target network slice to the terminal device, and the terminal device performs protocol configuration according to the protocol configuration information to access the target network slice.
  • the slice manager then notifies the target network slice to establish a bearer for the terminal device.
  • the slice manager notifies the source network slice to remove the bearer established for the terminal device, thereby reducing the network load of the source network slice and realizing resource optimization for the source network slice.
  • FIG. 4 to FIG. 6 is an example in which the slice manager and the protocol configuration device in the core network management device are integrated and set as an example.
  • FIG. 4 to FIG. 6 The slice manager and the protocol configuration device in the core network management device in the embodiment may also be separately set, and the interaction process between the slice manager and the protocol configuration device when separately set may refer to the embodiment of FIG. Narration.
  • the embodiment of the present invention further provides a related device for implementing the foregoing method.
  • FIG. 9 is a schematic structural diagram of a core network management device provided by this patent application.
  • the core network management device 90 includes a processor 901, a memory 902, and a transceiver 903.
  • the processor 901, the memory 902, and the transceiver 903 can be connected by a bus or other means.
  • the core network management device 90 may further include a network interface 904 and a power module 905.
  • the processor 901 can be a digital signal processing (English: Digital Signal Processing, referred to as DSP) chip.
  • DSP Digital Signal Processing
  • the memory 902 is used to store instructions.
  • the memory 902 can be a read-only memory (English: Read-Only Memory, ROM) or a random access memory (English: Random Access Memory, RAM).
  • the memory 902 is configured to store the network slice control program code, and the first preset threshold, the second preset threshold, the third preset threshold, and the fourth preset threshold, which are described in the foregoing embodiments. Five preset thresholds, a sixth preset threshold, and the like.
  • the transceiver 903 is used to transmit and receive signals.
  • Network interface 904 is used by core network management device 90 for data communication with other devices.
  • the network interface 904 can be a wired interface or a wireless interface.
  • the power module 905 is used to power various modules of the core network management device 90.
  • the processor 901 is configured to perform the following operations:
  • the information about the network status sent by the source network slice is received by the transceiver 903, and the source network slice is a network slice that the terminal device has accessed. If the network state of the source network slice satisfies the first preset condition, the processor 901 controls the terminal device to switch from the source network slice to the target network slice.
  • the processor 901 controls the terminal device to switch from the source network slice to the target network slice, where the processor 901 performs the target network slice access authorization on the terminal device.
  • the processor 901 transmits a first slice control request to the terminal device through the transceiver 903.
  • the first slice control request includes an identifier of the target network slice, and the identifier of the target network slice is used to instruct the terminal device to determine to switch from the source network slice to the target network slice according to the identifier of the target network slice.
  • the first slice control request further includes configuration indication information corresponding to the target network slice, where the configuration indication information is used to indicate that the terminal device performs protocol configuration according to the configuration indication information to access the target network slice.
  • the processor 901 is further configured to: send, by the transceiver 903, a second slice control request including the identifier of the terminal device to the target network slice.
  • the second slice control request is used to indicate that the target network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device.
  • the processor 901 determines that the target network slice has established a bearer for the terminal device, the third slice control request including the identity of the terminal device is transmitted to the source network slice through the transceiver 903.
  • the third slice control request is used to indicate that the source network slice is removed as a bearer established by the terminal device corresponding to the identifier of the terminal device.
  • the processor 901 performs a target network slice access authorization on the terminal device, where the processor 901 obtains the identifier of the terminal device from the terminal device identifier set that has accessed the source network slice, and according to the identifier of the terminal device, The subscription information corresponding to the identifier of the terminal device is obtained in the home subscriber network server or the policy and charging rule function device. If the processor 901 determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the subscription information, the processor 901 performs default network slice access authorization on the terminal device.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the source network slice includes the identifier of the terminal device.
  • the processor 901 performs the target network slice access authorization on the terminal device, where the processor 901 obtains the identifier of the terminal device from the network state information, and according to the identifier of the terminal device, from the home subscription user server or the policy and charging rule.
  • the subscription information corresponding to the identifier of the terminal device is obtained in the function device. If the processor 901 determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the subscription information, the processor 901 performs target network slice access authorization on the terminal device.
  • the information about the network status sent by the source network slice includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device corresponding to the target network slice.
  • the identifier of the target radio access network device is used by the core network management device to determine the target radio access network device corresponding Type of business.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the processor 901 receives the information about the network status sent by the source network slice through the transceiver 903, where the processor 901 receives the radio access network device or the core network user plane device or the core network control plane device through the transceiver 903.
  • the information of the network status, the radio access network device or the core network user plane device or the core network control plane device is the device in the source network slice.
  • the processor 901 is configured to invoke the program and data stored in the memory 902, and perform the following operations: receiving, by the transceiver 903, information about the network status sent by the target network slice, and the target network slice is the terminal device. The failed network segment is accessed, and the terminal device has access to the source network slice. If the network state of the target network slice satisfies the third preset condition, the processor 901 controls the terminal device to access the target network slice.
  • the processor 901 controls the terminal device to access the target network slice, and the processor 901 performs the target network slice access authorization on the terminal device.
  • the processor 901 sends a fourth slice control request to the terminal device by using the transceiver 903, where the fourth slice control request includes configuration indication information corresponding to the target network slice.
  • the configuration indication information corresponding to the target network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information to access the target network slice.
  • the processor 901 is further configured to: send, by the transceiver 903, the fifth slice control request including the identifier of the terminal device to the target network slice.
  • the fifth slice control request is used to indicate that the target network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device.
  • the processor 901 performs the target network slice access authorization on the terminal device, where the processor 901 obtains the identifier of the terminal device from the pre-recorded terminal device identifier set, and obtains the identifier from the home subscription server according to the identifier of the terminal device.
  • the subscription information corresponding to the identifier of the terminal device is obtained in the medium or policy and charging rule function device. If the processor 901 determines that the terminal device allows the core network management device to perform network slice access control on the terminal device according to the subscription information, the processor 901 performs a target network slice access authorization on the terminal device.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the processor 901 receives the information about the network status sent by the target network slice by using the transceiver 903. Specifically, the processor 901 receives the radio access network device or the core network user plane device or the core network control plane device by using the transceiver 903. The information of the network status, the radio access network device or the core network user plane device or the core network control plane device is the device in the target network slice.
  • FIG. 10 is a schematic structural diagram of a radio access network device provided by this patent application.
  • the radio access network device 100 includes a processor 1001, a memory 1002, and a transceiver 1003.
  • the processor 1001, the memory 1002, and the transceiver 1003 may be connected by a bus or other means.
  • the network slice 100 may further include a network interface 1004 and a power module 1005.
  • the processor 1001 can be a DSP chip.
  • the memory 1002 is used to store instructions.
  • the memory 1002 may be a ROM or a RAM.
  • the memory 1002 is configured to store a network slice control program code.
  • the transceiver 1003 is for transmitting and receiving signals.
  • the network interface 1004 is used by the wireless access network device 100 to perform data communication with other devices.
  • the network interface 1004 can be a wired interface or a wireless interface.
  • the power module 1005 is used to power various modules of the network slice 100.
  • the radio access network device 100 is a radio access network device in a source network slice that the terminal device has accessed.
  • the processor 1001 is configured to perform the following operations:
  • Information of the network status of the source network slice is transmitted to the core network management device through the transceiver 1003. If the network state of the source network slice satisfies the first preset condition, the processor 1001 receives the second slice control request sent by the core network management device by using the transceiver 1003.
  • the second slice control request includes an identifier of the terminal device.
  • the processor 1001 tears down the bearer established for the terminal device according to the second slice control request.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network status sent by the source network slice includes the identifier of the terminal device, where the identifier of the terminal device is used to instruct the core network management device to perform the function from the home subscription server or the policy and charging rule according to the identifier of the terminal device.
  • the device obtains the subscription information corresponding to the identifier of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the subscription information, the core network management device performs target network segmentation on the terminal device. Access authorization.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the processor 1001 by the transceiver 1003 includes the first measurement value obtained by the terminal device to measure the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device targets the target.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the radio access network device 100 is a radio access network device in a target network slice in which the terminal device access fails, and the terminal device has accessed the source network slice.
  • the processor 1001 is configured to call the program and data stored in the memory 1002, and performs the following operations: transmitting, by the transceiver 1003, information of the network status of the target network slice to the core network management device. If the network state of the target network slice meets the third preset condition, the processor 1001 receives the fifth slice control request sent by the core network management device by using the transceiver 1003, where the fifth slice control request includes the identifier of the terminal device. The processor 1001 establishes a bearer for the terminal device according to the fifth slice control request.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • FIG. 11 is a schematic structural diagram of a core network user plane device provided by the patent application.
  • the core network user plane device 110 includes a processor 1101, a memory 1102, and a transceiver 1103.
  • the processor 1101, the memory 1102, and the transceiver 1103 may be connected by a bus or other means.
  • the network slice 110 may further include a network interface 1104 and a power module 1105.
  • the processor 1101 may be a DSP chip.
  • the memory 1102 is used to store instructions.
  • the memory 1102 can be a ROM or a RAM.
  • the memory 1102 is configured to store a network slice control program code.
  • the transceiver 1103 is for transmitting and receiving signals.
  • the network interface 1104 is used by the core network user plane device 110 for data communication with other devices.
  • the network interface 1104 can be a wired interface or a wireless interface.
  • the power module 1105 is used to power various modules of the network slice 110.
  • the core network user plane device 110 is a core network user plane device in the source network slice that the terminal device has accessed.
  • the processor 1101 is configured to perform the following operations:
  • the information of the network status of the source network slice is transmitted to the core network management device through the transceiver 1103. If the network state of the source network slice satisfies the first preset condition, the processor 1101 receives the second slice control request sent by the core network management device by using the transceiver 1103.
  • the second slice control request includes an identifier of the terminal device. The processor 1101 removes the bearer established for the terminal device according to the second slice control request.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network status sent by the source network slice includes the identifier of the terminal device, where the identifier of the terminal device is used to instruct the core network management device to perform the function from the home subscription server or the policy and charging rule according to the identifier of the terminal device.
  • the device obtains the subscription information corresponding to the identifier of the terminal device. If the core network management device determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the subscription information, the core network management device performs target network segmentation on the terminal device. Access authorization.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the processor 1101 by the transceiver 1103 includes the first measurement value obtained by the terminal device to measure the downlink signal sent by the source core network user plane device corresponding to the source network slice, and the terminal device targets the target.
  • the identifier of the target core network user plane device is used by the core network management device to determine the service type corresponding to the target core network user plane device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target core network user plane device is inconsistent with the service type corresponding to the source core network user plane device.
  • the core network user plane device 110 is a core network user plane device in the target network slice in which the terminal device access fails, and the terminal device has accessed the source network slice.
  • the processor 1101 is configured to call the program and data stored in the memory 1102, and performs the following operations: transmitting, by the transceiver 1103, information of the network state of the target network slice to the core network management device. If the network state of the target network slice meets the third preset condition, the processor 1101 receives the fifth slice control request sent by the core network management device by using the transceiver 1103, where the fifth slice control request includes the identifier of the terminal device. The processor 1101 establishes a bearer for the terminal device according to the fifth slice control request.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the core network control plane device 120 includes a processor 1201, a memory 1202, and a transceiver 1203.
  • the processor 1201, the memory 1202, and the transceiver 1203 may be connected by a bus or other means.
  • the network slice 120 may further include a network interface 1204 and a power module 1205.
  • the processor 1201 may be a DSP chip.
  • the memory 1202 is configured to store instructions.
  • the memory 1202 may be a ROM or a RAM.
  • the memory 1202 is configured to store a network slice control program code.
  • the transceiver 1203 is for transmitting and receiving signals.
  • the network interface 1204 is used by the core network control plane device 120 for data communication with other devices.
  • the network interface 1204 can be a wired interface or a wireless interface.
  • the power module 1205 is used to power various modules of the network slice 120.
  • the core network control plane device 120 is a core network control plane device in the source network slice that the terminal device has accessed.
  • the processor 1201 is configured to perform the following operations:
  • Information of the network status of the source network slice is transmitted to the core network management device through the transceiver 1203. If the network state of the source network slice satisfies the first preset condition, the processor 1201 receives the second slice control request sent by the core network management device by using the transceiver 1203.
  • the second slice control request includes an identifier of the terminal device.
  • the processor 1201 tears down the bearer established for the terminal device according to the second slice control request.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network status sent by the source network slice includes the identifier of the terminal device, where the identifier of the terminal device is used to instruct the core network management device to perform the function from the home subscription server or the policy and charging rule according to the identifier of the terminal device.
  • the device obtains the subscription information corresponding to the identifier of the terminal device, and if the processor 1201 determines that the terminal device allows the core network management device to perform network slice switching control on the terminal device according to the subscription information, the processor 1201 performs target network slice access on the terminal device.
  • Authorization the identifier of the terminal device
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the processor 1201 by the transceiver 1203 includes the first measurement value obtained by the terminal device to measure the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device targets the target.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the core network control plane device 120 is a core network control plane device in the target network slice in which the terminal device access fails, and the terminal device has accessed the source network slice.
  • the processor 1201 is configured to invoke the program and data stored in the memory 1202, and perform the following operations: transmitting, by the transceiver 1203, information of the network status of the target network slice to the core network management device. If the network state of the target network slice meets the third preset condition, the processor 1201 receives the fifth slice control request sent by the core network management device by using the transceiver 1203, where the fifth slice control request includes the identifier of the terminal device. The processor 1201 establishes a bearer for the terminal device according to the fifth slice control request.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • FIG. 13 is a schematic structural diagram of a terminal device provided by the present application.
  • the terminal device 130 includes a processor 1301, a memory 1302, and a transceiver 1303, wherein the processor 1301, the memory 1302, and the transceiver 1303 can be connected by a bus or other means.
  • the terminal device 130 may further include a network interface 1304 and a power module 1305.
  • the processor 1301 may be a DSP chip.
  • the memory 1302 is configured to store instructions.
  • the memory 1302 may be a ROM or a RAM.
  • the memory 1302 is configured to store a network slice control program code.
  • the transceiver 1303 is configured to transmit and receive signals.
  • the network interface 1304 is used by the terminal device 130 for data communication with other devices.
  • the network interface 1304 can be a wired interface or a wireless interface.
  • the power module 1305 is configured to supply power to various modules of the terminal device 130.
  • the processor 1301 is configured to perform the following operations:
  • the terminal device has accessed the source network slice, and the first slice control request is determined by the core network management device according to the network state information sent by the source network slice.
  • the network state of the source network slice is sent to the terminal device when the first preset condition is met.
  • the processor 1301 determines to switch from the source network slice to the target network slice according to the first slice control request.
  • the first slice control request further includes configuration indication information corresponding to the target network slice.
  • the processor 1301 After the processor 1301 receives the first slice control request sent by the core network management device, the processor 1301 is further configured to: perform protocol configuration according to the configuration indication information to access the target network slice.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the source network slice includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device corresponding to the target network slice.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the processor 1301 is configured to perform the following operations:
  • the fourth slice control request sent by the core network management device is received by the transceiver 1303, and the terminal device has accessed the source network slice.
  • the fourth slice control request is sent to the terminal device when the network state of the source network slice meets the third preset condition according to the network state information sent by the target network slice.
  • the processor 1301 performs protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • FIG. 14 is a schematic structural diagram of another core network management device provided by this patent application. As shown in FIG. 14, the core network management device 140 includes a receiving module 1401 and a control module 1402.
  • the receiving module 1401 is configured to receive information about a network state sent by a source network slice, where the source network slice is a network slice that the terminal device has accessed.
  • the control module 1402 is configured to control the terminal device to switch from the source network slice to the target network slice if the network state of the source network slice satisfies the first preset condition.
  • control module 1402 includes:
  • the authorization module is configured to perform target network slice access authorization on the terminal device.
  • the first sending module is configured to send a first slice control request to the terminal device.
  • the first slice control request includes an identifier of the target network slice, and the identifier of the target network slice is used to instruct the terminal device to determine to switch from the source network slice to the target network slice according to the identifier of the target network slice.
  • the first slice control request further includes configuration indication information corresponding to the target network slice, where the configuration indication information is used to indicate that the terminal device performs protocol configuration according to the configuration indication information to access the target network slice.
  • control module 1402 further includes:
  • a second sending module configured to send, to the target network slice, a second slice control request that includes an identifier of the terminal device.
  • the second slice control request is used to indicate that the target network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device.
  • a third sending module configured to: when determining that the target network slice has established a bearer for the terminal device, send a third slice control request including the identifier of the terminal device to the source network slice.
  • the third slice control request is used to indicate that the source network slice is removed as a bearer established by the terminal device corresponding to the identifier of the terminal device.
  • the authorization module is specifically configured to: obtain the identifier of the terminal device from the set of terminal device identifiers that have been accessed by the source network slice, and obtain the function device from the home subscription server or the policy and charging rule function according to the identifier of the terminal device.
  • the subscription information corresponding to the identifier of the terminal device is obtained. If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, the authorization module performs default network slice access authorization on the terminal device.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the default network slice is a network slice that is determined when the terminal device signs up to meet the most basic service requirements of the terminal device.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the source network slice includes the identifier of the terminal device.
  • the authorization module is specifically configured to: obtain the identifier of the terminal device from the information of the network state, and obtain the subscription information corresponding to the identifier of the terminal device from the home subscription server or the policy and charging rule function device according to the identifier of the terminal device. . If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice switching control on the terminal device, perform target network slice access authorization on the terminal device.
  • the information about the network status sent by the source network slice includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device corresponding to the target network slice.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the receiving module 1401 is specifically configured to: receive information about a network state sent by a radio access network device or a core network user plane device or a core network control plane device, where the radio access network device or the core network user plane device or the core network control plane device is The device in the source network slice.
  • the receiving module 1401 is configured to receive information about a network state sent by a target network slice, where the target network slice is a network slice that the terminal device fails to access, and the terminal device has accessed the source network slice.
  • the control module 1402 is configured to control the terminal device to access the target network slice if the network state of the target network slice meets the third preset condition.
  • the control module 1402 includes:
  • the authorization module is configured to perform target network slice access authorization on the terminal device.
  • a first sending module configured to send a fourth slice control request to the terminal device, where the fourth slice control request includes a destination
  • the configuration indication information corresponding to the standard network slice is used to instruct the terminal device to perform protocol configuration according to the configuration indication information to access the target network slice.
  • the control module 1402 further includes:
  • a second sending module configured to send, to the target network slice, a fifth slice control request that includes an identifier of the terminal device.
  • the fifth slice control request is used to indicate that the target network slice establishes a bearer for the terminal device corresponding to the identifier of the terminal device.
  • the authorization module is specifically configured to: obtain the identifier of the terminal device from the pre-recorded terminal device identifier set, and obtain the terminal from the home subscription user server or the policy and charging rule function device according to the identifier of the terminal device.
  • the contract information corresponding to the identifier of the device. If it is determined according to the subscription information that the terminal device allows the core network management device to perform network slice access control on the terminal device, perform target network slice access authorization on the terminal device.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the receiving module 1401 is specifically configured to: receive information about a network state sent by a radio access network device or a core network user plane device or a core network control plane device, where the radio access network device or the core network user plane device or the core network control plane device is The device in the target network slice.
  • FIG. 15 is a schematic structural diagram of another radio access network device provided by this patent application. As shown in FIG. 15, the radio access network device 150 includes a sending module 1501, a receiving module 1502, and a processing module 1503.
  • the sending module 1501 is configured to send information about a network state of the source network slice to the core network management device.
  • the receiving module 1502 is configured to receive a second slice control request sent by the core network management device, if the network state of the source network slice meets the first preset condition.
  • the second slice control request includes an identifier of the terminal device.
  • the processing module 1503 is configured to remove the bearer established for the terminal device according to the second slice control request.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network status sent by the source network slice includes the identifier of the terminal device, where the identifier of the terminal device is used to instruct the core network management device to perform the function from the home subscription server or the policy and charging rule according to the identifier of the terminal device.
  • the device obtains the subscription information corresponding to the identifier of the terminal device. If the terminal device determines that the core network management device performs the network slice switching control on the terminal device according to the subscription information, the core network management device performs the target network slice access authorization on the terminal device.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the sending module 1501 includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device corresponding to the target network slice.
  • the identifier of the target radio access network device is used by the core network management device to determine the target radio access network device pair The type of business that should be.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the sending module 1501 is configured to send information about a network state of the target network slice to the core network management device.
  • the receiving module 1502 is configured to receive a fifth slice control request sent by the core network management device, if the network state of the target network slice meets the third preset condition.
  • the fifth slice control request includes an identifier of the terminal device.
  • the processing module 1503 is configured to establish a bearer for the terminal device according to the fifth slice control request.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • FIG. 16 is a structural diagram of another core network user plane device provided by this patent application.
  • the core network user plane device 160 includes a sending module 1601, a receiving module 1602, and a processing module 1603.
  • the sending module 1601 is configured to send information about a network state of the source network slice to the core network management device.
  • the receiving module 1602 is configured to receive a second slice control request sent by the core network management device, if the network state of the source network slice meets the first preset condition.
  • the second slice control request includes an identifier of the terminal device.
  • the processing module 1603 is configured to remove the bearer established for the terminal device according to the second slice control request.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network status sent by the source network slice includes the identifier of the terminal device, where the identifier of the terminal device is used to instruct the core network management device to perform the function from the home subscription server or the policy and charging rule according to the identifier of the terminal device.
  • the device obtains the subscription information corresponding to the identifier of the terminal device. If the terminal device determines that the core network management device performs the network slice switching control on the terminal device according to the subscription information, the core network management device performs the target network slice access authorization on the terminal device.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the sending module 1601 includes a first measurement value obtained by the terminal device measuring the downlink signal sent by the source core network user plane device corresponding to the source network slice, and the terminal device corresponding to the target network slice.
  • the second measured value obtained by measuring the downlink signal sent by the target core network user plane device and the identifier of the target core network user plane device.
  • the identifier of the target core network user plane device is used by the core network management device to determine the service type corresponding to the target core network user plane device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target core network user plane device is inconsistent with the service type corresponding to the source core network user plane device.
  • the sending module 1601 is configured to send information about a network state of the target network slice to the core network management device.
  • the receiving module 1602 is configured to receive a fifth slice control request sent by the core network management device, if the network state of the target network slice meets the third preset condition.
  • the fifth slice control request includes an identifier of the terminal device.
  • the processing module 1603 is configured to establish a bearer for the terminal device according to the fifth slice control request.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • FIG. 17 is a schematic structural diagram of another core network control plane device provided by this patent application.
  • the core network control plane device 170 includes a sending module 1701, a receiving module 1702, and a processing module 1703.
  • the sending module 1701 is configured to send information about a network state of the source network slice to the core network management device.
  • the receiving module 1702 is configured to receive a second slice control request sent by the core network management device, if the network state of the source network slice meets the first preset condition.
  • the second slice control request includes an identifier of the terminal device.
  • the processing module 1703 is configured to remove the bearer established for the terminal device according to the second slice control request.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the information about the network status sent by the source network slice includes the identifier of the terminal device, where the identifier of the terminal device is used to instruct the core network management device to perform the function from the home subscription server or the policy and charging rule according to the identifier of the terminal device.
  • the device obtains the subscription information corresponding to the identifier of the terminal device. If the terminal device determines that the core network management device performs the network slice switching control on the terminal device according to the subscription information, the core network management device performs the target network slice access authorization on the terminal device.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the sending module 1701 includes a first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device corresponding to the target network slice.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the sending module 1701 is configured to send information about a network state of the target network slice to the core network management device.
  • the receiving module 1702 is configured to receive a fifth slice control request sent by the core network management device, if the network state of the target network slice meets the third preset condition.
  • the fifth slice control request includes an identifier of the terminal device.
  • the processing module 1703 is configured to establish a bearer for the terminal device according to the fifth slice control request.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the terminal device 180 includes a receiving module 1801 and a processing module 1802.
  • the receiving module 1801 is configured to receive a first slice control request sent by the core network management device, where the terminal device has accessed the source network slice, and the first slice control request is a core network management.
  • the device determines, according to the information about the network status sent by the source network slice, that the network state of the source network slice is sent to the terminal device when the first preset condition is met.
  • the processing module 1802 is configured to determine to switch from the source network slice to the target network slice according to the first slice control request.
  • the terminal device 180 further includes: a configuration module, configured to perform protocol configuration according to the configuration indication information to access the target network slice.
  • a configuration module configured to perform protocol configuration according to the configuration indication information to access the target network slice.
  • the first preset condition includes: the network resource residual value is less than or equal to the first preset threshold or the load value is greater than or equal to the second preset threshold.
  • the target network slice is a default network slice or a network slice that satisfies a second preset condition.
  • the second preset condition includes: the network resource residual value is greater than or equal to the third preset threshold or the load value is less than or equal to the fourth preset threshold.
  • the information about the network status sent by the source network slice includes the first measurement value obtained by the terminal device measuring the downlink signal sent by the source radio access network device corresponding to the source network slice, and the terminal device corresponding to the target network slice.
  • the identifier of the target radio access network device is used by the core network management device to determine a service type corresponding to the target radio access network device.
  • the first preset condition includes: the second measurement value is greater than the first measurement value, and the service type corresponding to the target radio access network device is inconsistent with the service type corresponding to the source radio access network device.
  • the receiving module 1801 is configured to receive a fourth slice control request sent by the core network management device, where the terminal device has accessed the source network slice.
  • the fourth slice control request is sent to the terminal device when the network state of the target network slice meets the third preset condition according to the network state information sent by the target network slice.
  • the processing module 1802 is configured to perform protocol configuration according to the configuration indication information corresponding to the target network slice to access the target network slice.
  • the third preset condition includes: the network resource residual value is greater than or equal to the fifth preset threshold or the load value is less than or equal to the sixth preset threshold.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

一种网络切片控制方法及相关设备，其中，该方法包括：终端设备接入源网络切片。源网络切片向核心网管理设备发送网络状态的信息。核心网管理设备接收源网络切片发送的网络状态的信息。若网络状态满足第一预设条件，核心网管理设备控制终端设备从源网络切片切换至目标网络切片。采用本申请，可以减轻源网络切片的负载压力，对源网络切片的网络资源进行优化。

Description

网络切片控制方法及相关设备 技术领域
本发明实施例涉及通信技术领域，尤其涉及一种网络切片控制方法及相关设备。
背景技术
无线通信技术发展日新月异，未来无线通信业务将千变万化，形态各异。第五代(英文：5th Generation，简称：5G)无线通信网络将面向不同的应用场景，比如，超高清视频、虚拟现实、大规模物联网、车联网等等，不同的场景对网络的移动性、安全性、时延、可靠性，甚至是计费方式的要求是不一样的，比如，具有高速移动特征的业务对业务的连续性、切换时延等网络性能指标有着较高要求，而机器类通信业务(英文：Machine Type Communication，简称：MTC)对业务连接数有着较高的要求，而对切换时延以及移动性没有要求。在未来的5G通信系统中，为适应不同的业务对网络性能不同的要求，未来网络需要具备按需制定的能力，也就是要能实现灵活的配置网络切片，将物理网络切割成多个虚拟网络切片，每个虚拟网络切片面向不同的应用场景需求。
由上可知，未来业务形态各异，千差万别，5G网络的发展趋势是通过虚拟化技术，为不同类型的业务建立不同的网络切片，在5G网络中，如何对终端设备切换至目标网络切片进行控制是亟待解决的问题。
发明内容
本发明实施例提供了一种网络切片控制方法及相关设备，可以由核心网管理设备对终端设备切换至目标网络切片进行控制，减轻源网络切片的负载压力，对源网络切片的网络资源进行优化。
第一方面，本发明实施例提供了一种网络切片控制方法。该方法包括：核心网管理设备接收源网络切片发送的网络状态的信息，源网络切片为终端设备已接入的网络切片。若源网络切片的网络状态满足第一预设条件，核心网管理设备控制终端设备从源网络切片切换至目标网络切片。从而减轻源网络切片的负载压力，对源网络切片的网络资源进行优化。
结合第一方面，在第一方面的第一种实现方式中，对核心网管理设备控制终端设备从源网络切片切换至目标网络切片的过程进行描述。核心网管理设备对终端设备进行目标网络切片接入授权。核心网管理设备向终端设备发送第一切片控制请求。第一切片控制请求包括目标网络切片的标识。目标网络切片的标识用于指示终端设备根据目标网络切片的标识确定从源网络切片切换至目标网络切片。从而，减轻源网络切片的负载压力，对源网络切片的网络资源进行优化。
结合结合第一方面的第一种实现方式，在第一方面的第二种实现方式中，第一切片控制请求还包括目标网络切片对应的配置指示信息，配置指示信息用于指示终端设备根据配置指示信息进行协议配置以接入目标网络切片。从而，终端设备可以正确地接入到目标网络切片中。
结合第一方面的第一种实现方式，或第一方面的第二种实现方式，在第一方面的第三 种实现方式中，核心网管理设备对终端设备进行目标网络切片接入授权之后，核心网管理设备还向目标网络切片发送包括终端设备的标识的第二切片控制请求。第二切片控制请求用于指示目标网络切片为终端设备的标识对应的终端设备建立承载。当核心网管理设备确定目标网络切片已为终端设备建立承载时，核心网管理设备向源网络切片发送包括终端设备的标识的第三切片控制请求。第三切片控制请求用于指示源网络切片拆除为终端设备的标识对应的终端设备建立的承载。通过目标网络切片为终端设备建立承载，终端设备可以正确地接入到目标网络切片中。为了保障终端设备的业务不会发生中断，在目标网络切片为终端设备建立了承载之后，源网络切片才拆除为终端设备建立的承载。之后，源网络切片不再为该终端设备提供业务服务，减轻了源网络切片的负载压力。
结合第一方面的第一种实现方式，或第一方面的第二种实现方式，或第一方面的第三种实现方式，在第一方面的第四种实现方式中，核心网管理设备从已接入源网络切片的终端设备标识集合中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第一方面，或第一方面的任意一种实现方式，在第一方面的第五种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第一方面的第一种实现方式，或第一方面的任意一种实现方式，在第一方面的第六种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第一方面的第六种实现方式，在第一方面的第七种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第一方面的第一种实现方式，或第一方面的任意一种实现方式，在第一方面的第八种实现方式中，源网络切片发送的网络状态的信息中包括终端设备的标识。核心网管理设备从网络状态的信息中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第一方面，或第一方面的第一种实现方式，或第一方面的第二种实现方式，或第一方面的第八种实现方式，在第一方面的第九种实现方式中，源网络切片发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用 于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
结合第一方面，或第一方面的任意一种实现方式，在第一方面的第十种实现方式中，核心网管理设备接收源网络切片发送的网络状态的信息，具体为：核心网管理设备接收无线接入网设备或核心网控制面设备发送的网络状态的信息，无线接入网设备或核心网控制面设备为源网络切片中的设备。
结合第一方面，或第一方面的任意一种实现方式，在第一方面的第十一种实现方式中，对终端设备初始接入源网络切片进行描述。核心网管理设备接收终端设备发送的切片接入请求。切片接入请求中包括源网络切片的标识。核心网管理设备根据切片接入请求对终端设备进行源网络切片的标识对应的源网络切片接入授权。核心网管理设备向终端设备发送源网络切片对应的配置指示信息。源网络切片对应的配置指示信息用于指示终端设备根据源网络切片对应的配置指示信息进行协议配置以接入源网络切片。从而，提高了终端设备在最初接入源网络切片时的成功率。
结合第一方面的第十一种实现方式，在第一方面的第十二种实现方式中，核心网管理设备对终端设备进行源网络切片接入授权之后，还向源网络切片发送第六切片控制请求，第六切片控制请求包括终端设备的标识。第六切片控制请求用于指示源网络切片为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第一方面的第十一种实现方式，或第一方面的第十二种实现方式，在第一方面的第十三种实现方式中，切片接入请求中还包括终端设备的标识。核心网管理设备从切片接入请求中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息及源网络切片的标识确定终端设备能接入源网络切片，则核心网管理设备对终端设备进行源网络切片的标识对应的源网络切片接入授权。通过接入授权进一步提高了终端设备接入源网络切片时的成功率。
结合第一方面，在第一方面的第十四种实现方式中，核心网管理设备包括互相连接的切片管理器和协议配置功能。目标网络切片为默认网络切片。切片管理器接收源网络切片发送的网络状态的信息。若源网络切片的网络状态满足第一预设条件，切片管理器对终端设备进行默认网络切片接入授权。切片管理器向协议配置设备发送协议配置信息获取请求，协议配置设备接收切片管理器发送的协议配置信息获取请求。该协议配置信息获取请求中包括默认网络切片的标识。该协议配置信息获取请求用于指示获取默认网络切片对应的协议配置信息。协议配置设备根据接收到的协议配置信息获取请求查找默认网络切片对应的协议配置信息，并将协议配置信息发送给切片管理器。切片管理器接收协议配置设备发送的协议配置信息，并将该协议配置信息发送给终端设备，终端设备接收切片管理器发送的协议配置信息，按照该协议配置信息进行协议配置以接入默认网络切片。通过分开设置切片管理器和协议配置设备，实现了切片管理器进行接入授权，协议配置设备确定协议配置信息，相较于切片管理器和协议配置设备一体设置的方式，该实现方式中切片管理器和协议配置设备各自实现不同的功能，效率更高。
结合第一方面，或第一方面的任一实现方式，在第一方面的第十五种实现方式中，源网络切片的网络状态的信息包括源网络切片中的无线接入网设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息，或者，源网络切片的网络状态的信息包括源网络切片中的核心网控制面设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第二方面，本发明实施例提供了一种网络切片控制方法。该方法包括：无线接入网设备向核心网管理设备发送源网络切片的网络状态的信息。源网络切片为终端设备已接入的网络切片，该无线接入网设备为源网络切片的无线接入网设备。若源网络切片的网络状态满足第一预设条件，无线接入网设备接收核心网管理设备发送的包括终端设备的标识的第二切片控制请求。无线接入网设备根据第二切片控制请求拆除为终端设备的标识对应的终端设备建立的承载。之后，源网络切片不再为该终端设备提供业务服务，减轻了源网络切片的负载压力。
结合第二方面，在第二方面的第一种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第二方面，或第二方面的第一种实现方式，在第二方面的第二种实现方式中，无线接入网设备发送的网络状态的信息中包括终端设备的标识。终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第二方面，或第二方面的第一种实现方式，或第二方面的第二种实现方式，在第二方面的第三种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第二方面的第三种实现方式，在第二方面的第四种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第二方面，或第二方面的第二种实现方式，在第二方面的第五种实现方式中，无线接入网设备发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
结合第二方面，或第二方面的任意一种实现方式，在第二方面的第六种实现方式中，对终端设备初始接入源网络切片进行描述。源网络切片接收核心网管理设备发送的第六切片控制请求，第六切片控制请求为核心网管理设备根据终端设备发送的切片接入请求发送给源网络切片的。第六切片接入请求中包括终端设备的标识。源网络切片根据第六切片控 制请求为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第二方面，或第二方面的任一实现方式，在第二方面的第七种实现方式中，源网络切片的网络状态的信息包括源网络切片中的无线接入网设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第三方面，本发明实施例提供了一种网络切片控制方法。该方法包括：核心网用户面设备向核心网管理设备发送源网络切片的网络状态的信息。源网络切片为终端设备已接入的网络切片，该核心网用户面设备为源网络切片的核心网用户面设备。若源网络切片的网络状态满足第一预设条件，核心网用户面设备接收核心网管理设备发送的包括终端设备的标识的第二切片控制请求。核心网用户面设备根据第二切片控制请求拆除为终端设备的标识对应的终端设备建立的承载。之后，源网络切片不再为该终端设备提供业务服务，减轻了源网络切片的负载压力。
结合第三方面，在第三方面的第一种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第三方面，或第三方面的第一种实现方式，在第三方面的第二种实现方式中，核心网用户面设备发送的网络状态的信息中包括终端设备的标识。终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第三方面，或第三方面的第一种实现方式，或第三方面的第二种实现方式，在第三方面的第三种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第三方面的第三种实现方式，在第三方面的第四种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第三方面，或第三方面的第二种实现方式，在第三方面的第五种实现方式中，核心网用户面设备发送的网络状态的信息中包括终端设备对源网络切片对应的源核心网用户面设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标核心网用户面设备发送的下行信号进行测量得到的第二测量值以及目标核心网用户面设备的标识。目标核心网用户面设备的标识用于核心网管理设备确定目标核心网用户面设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标核心网用户面设备对应的业务类型与源核心网用户面设备对应的业务类型不一致。
结合第三方面，或第三方面的任意一种实现方式，在第三方面的第六种实现方式中，对终端设备初始接入源网络切片进行描述。源网络切片接收核心网管理设备发送的第六切片控制请求，第六切片控制请求为核心网管理设备根据终端设备发送的切片接入请求发送给源网络切片的。第六切片接入请求中包括终端设备的标识。源网络切片根据第六切片控 制请求为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第三方面，或第三方面的任一实现方式，在第三方面的第七种实现方式中，源网络切片的网络状态的信息包括源网络切片中的无线接入网设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第四方面，本发明实施例提供了一种网络切片控制方法。该方法包括：核心网控制面设备向核心网管理设备发送源网络切片的网络状态的信息。源网络切片为终端设备已接入的网络切片，该核心网控制面设备为源网络切片的核心网控制面设备。若源网络切片的网络状态满足第一预设条件，核心网控制面设备接收核心网管理设备发送的包括终端设备的标识的第二切片控制请求。核心网控制面设备根据第二切片控制请求拆除为终端设备的标识对应的终端设备建立的承载。之后，源网络切片不再为该终端设备提供业务服务，减轻了源网络切片的负载压力。
结合第四方面，在第四方面的第一种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第四方面，或第四方面的第一种实现方式，在第四方面的第二种实现方式中，核心网控制面设备发送的网络状态的信息中包括终端设备的标识。终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第四方面，或第四方面的第一种实现方式，或第四方面的第二种实现方式，在第四方面的第三种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第四方面的第三种实现方式，在第四方面的第四种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第四方面，或第四方面的第二种实现方式，在第四方面的第五种实现方式中，核心网控制面设备发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
结合第四方面，或第四方面的任意一种实现方式，在第四方面的第六种实现方式中，对终端设备初始接入源网络切片进行描述。源网络切片接收核心网管理设备发送的第六切片控制请求，第六切片控制请求为核心网管理设备根据终端设备发送的切片接入请求发送给源网络切片的。第六切片接入请求中包括终端设备的标识。源网络切片根据第六切片控 制请求为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第四方面，或第四方面的任一实现方式，在第四方面的第七种实现方式中，源网络切片的网络状态的信息包括源网络切片中的核心网控制面设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第五方面，本发明实施例提供了一种网络切片控制方法。该方法包括：终端设备接收核心网管理设备发送的第一切片控制请求，终端设备已接入源网络切片。该第一切片控制请求为核心网管理设备根据源网络切片发送的网络状态的信息判断出源网络切片的网络状态满足第一预设条件时发送给终端设备的，第一切片控制请求包括目标网络切片的标识。终端设备根据第一切片控制请求确定从源网络切片切换至目标网络切片的标识对应的目标网络切片。从而减轻源网络切片的负载压力，对源网络切片的网络资源进行优化。
结合第五方面，在第五方面的第一种实现方式中，第一切片控制请求还包括目标网络切片对应的配置指示信息；终端设备接收核心网管理设备发送的第一切片控制请求之后，终端设备还根据配置指示信息进行协议配置以接入目标网络切片。提高了终端设备接入目标网络切片的成功率。
结合第五方面，或第五方面的第一种实现方式，在第五方面的第二种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第五方面，或第五方面的第一种实现方式，或第五方面的第二种实现方式，在第五方面的第三种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第五方面的第三种实现方式，在第五方面的第四种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第五方面，或第五方面的第一种实现方式，在第五方面的第五种实现方式中，源网络切片发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
结合第五方面，或第五方面的任意一种实现方式，在第五方面的第六种实现方式中，对终端设备初始接入源网络切片进行描述。终端设备向核心网管理设备发送包括源网络切片的标识的切片接入请求。切片接入请求用于指示核心网管理设备对终端设备进行源网络切片的标识对应的源网络切片接入授权，并向终端设备发送源网络切片对应的配置指示信息。终端设备接收核心网管理设备发送的源网络切片对应的配置指示信息。终端设备根据源网络切片对应的配置指示信息进行协议配置以接入源网络切片。从而，提高了终端设备在最初接入源网络切片时的成功率。
结合第五方面的第六种实现方式，在第五方面的第七种实现方式中，切片接入请求中还包括终端设备的标识。终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息及源网络切片的标识确定终端设备能接入源网络切片，则核心网管理设备对终端设备进行源网络切片的标识对应的源网络切片接入授权。通过接入授权进一步提高了终端设备接入源网络切片时的成功率。
结合第五方面，或第五方面的任一实现方式，在第五方面的第八种实现方式中，源网络切片的网络状态的信息包括源网络切片中的无线接入网设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息，或者，源网络切片的网络状态的信息包括源网络切片中的核心网控制面设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第六方面，本发明实施例提供了一种网络切片控制方法。该方法包括：核心网管理设备接收目标网络切片发送的网络状态的信息，目标网络切片为终端设备接入失败的网络切片，终端设备已接入源网络切片。若目标网络切片的网络状态满足第三预设条件，核心网管理设备控制终端设备接入目标网络切片。从而满足终端设备同时接入两个网络切片的需求。
结合第六方面，在第六方面的第一种实现方式中，对核心网管理设备控制终端设备接入目标网络切片的过程进行描述。核心网管理设备对终端设备进行目标网络切片接入授权。核心网管理设备向终端设备发送第四切片控制请求，第四切片控制请求中包括目标网络切片对应的配置指示信息。目标网络切片对应的配置指示信息用于指示终端设备根据该配置指示信息进行协议配置以接入目标网络切片，从而，终端设备可以正确地接入到目标网络切片中。
结合第六方面的第一种实现方式，在第六方面的第二种实现方式中，核心网管理设备对终端设备进行目标网络切片接入授权之后，核心网管理设备还向目标网络切片发送包括终端设备的标识的第五切片控制请求。第五切片控制请求用于指示目标网络切片为终端设备的标识对应的终端设备建立承载，从而，终端设备可以正确地接入到目标网络切片中。
结合第六方面的第一种实现方式，或第六方面的第二种实现方式中，在第六方面的第三种实现方式中，核心网管理设备从预先记录的终端设备标识集合中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第六方面，或第六方面的任意一种实现方式，在第六方面的第四种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第六方面，或第六方面的任意一种实现方式，在第六方面的第五种实现方式中，核心网管理设备接收目标网络切片发送的网络状态的信息，具体为：核心网管理设备接收 无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，无线接入网设备或核心网用户面设备或核心网控制面设备为目标网络切片中的设备。
结合第六方面，或第六方面的任意一种实现方式，在第六方面的第六种实现方式中，对终端设备初始接入源网络切片进行描述。核心网管理设备接收终端设备发送的切片接入请求。切片接入请求中包括源网络切片的标识。核心网管理设备根据切片接入请求对终端设备进行源网络切片的标识对应的源网络切片接入授权。核心网管理设备向终端设备发送源网络切片对应的配置指示信息。源网络切片对应的配置指示信息用于指示终端设备根据源网络切片对应的配置指示信息进行协议配置以接入源网络切片。从而，提高了终端设备在最初接入源网络切片时的成功率。
结合第六方面的第六种实现方式，在第六方面的第七种实现方式中，核心网管理设备根据切片接入请求对终端设备进行源网络切片接入授权之后，还向源网络切片发送包括终端设备的标识的第六切片控制请求。第六切片控制请求用于指示源网络切片为终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第六方面的第六种实现方式，或第六方面的第七种实现方式，在第六方面的第八种实现方式中，切片接入请求中还包括终端设备的标识。核心网管理设备从切片接入请求中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息及源网络切片的标识确定终端设备能接入源网络切片，则核心网管理设备对终端设备进行源网络切片的标识对应的源网络切片接入授权。通过接入授权进一步提高了终端设备接入源网络切片时的成功率。
结合第六方面，在第六方面的第九种实现方式中，核心网管理设备包括互相连接的切片管理器和协议配置设备。切片管理器接收目标网络切片发送的网络状态的信息。若目标网络切片的网络状态满足第三预设条件，切片管理器对终端设备进行目标网络切片接入授权。切片管理器向协议配置设备发送协议配置信息获取请求，协议配置设备接收切片管理器发送的协议配置信息获取请求。该协议配置信息获取请求中包括目标网络切片的标识。该协议配置信息获取请求用于指示获取目标网络切片对应的协议配置信息。协议配置设备根据接收到的协议配置信息获取请求查找目标网络切片对应的协议配置信息，并将协议配置信息发送给切片管理器。切片管理器接收协议配置设备发送的协议配置信息，并将该协议配置信息发送给终端设备，终端设备接收切片管理器发送的协议配置信息，按照该协议配置信息进行协议配置以接入目标网络切片。通过分开设置切片管理器和协议配置设备，实现了切片管理器进行接入授权，协议配置设备确定协议配置信息，相较于切片管理器和协议配置设备一体设置的方式，该实现方式中切片管理器和协议配置设备各自实现不同的功能，效率更高。
结合第六方面，或第六方面的任一实现方式，在第六方面的第十种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的无线接入网设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息，或者，目标网络切片的网络状态的信息包括目标网络切片中的核心网控制面设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第七方面，本发明实施例提供了一种网络切片控制方法。该方法包括：无线接入网设备向核心网管理设备发送目标网络切片的网络状态的信息，目标网络切片为终端设备接入失败的网络切片，终端设备已接入源网络切片，且该无线接入网设备为目标网络切片的无线接入网设备。若目标网络切片的网络状态满足第三预设条件，无线接入网设备接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。无线接入网设备根据第五切片控制请求为终端设备的标识对应的终端设备建立承载，从而，保障已接入源网络切片的终端设备可以同时接入到目标网络切片中。
结合第七方面，在第七方面的第一种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第七方面，或第七方面的第一种实现方式，在第七方面的第二种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的无线接入网设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第八方面，本发明实施例提供了一种网络切片控制方法。该方法包括：核心网用户面设备向核心网管理设备发送目标网络切片的网络状态的信息，目标网络切片为终端设备接入失败的网络切片，终端设备已接入源网络切片，且该核心网用户面设备为目标网络切片的核心网用户面设备。若目标网络切片的网络状态满足第三预设条件，核心网用户面设备接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。核心网用户面设备根据第五切片控制请求为终端设备的标识对应的终端设备建立承载，从而，保障已接入源网络切片的终端设备可以同时接入到目标网络切片中。
结合第八方面，在第八方面的第一种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第八方面，或第八方面的第一种实现方式，在第八方面的第二种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的无线接入网设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第九方面，本发明实施例提供了一种网络切片控制方法。该方法包括：核心网控制面设备向核心网管理设备发送目标网络切片的网络状态的信息，目标网络切片为终端设备接入失败的网络切片，终端设备已接入源网络切片，且该核心网控制面设备为目标网络切片的核心网控制面设备。若目标网络切片的网络状态满足第三预设条件，核心网控制面设备接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。核心网控制面设备根据第五切片控制请求为终端设备的标识对应的终端设备建立承载，从而，保障已接入源网络切片的终端设备可以同时接入到目标网络切片中。
结合第九方面，在第九方面的第一种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第九方面，或第九方面的第一种实现方式，在第九方面的第二种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的核心网控制面设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第十方面，本发明实施例提供了一种网络切片控制方法。该方法包括：终端设备接收核心网管理设备发送的第四切片控制请求，终端设备已接入源网络切片。第四切片控制请 求包括目标网络切片对应的配置指示信息。第四切片控制请求为核心网管理设备根据目标网络切片发送的网络状态的信息判断出目标网络切片的网络状态满足第三预设条件时发送给终端设备的。终端设备根据目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。从而满足终端设备同时接入两个网络切片的需求。
结合第十方面，在第十方面的第一种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第十方面，或第十方面的第一种实现方式，在第十方面的第二种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的无线接入网设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息，或者，目标网络切片的网络状态的信息包括目标网络切片中的核心网控制面设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第十一方面，本发明实施例提供了一种核心网管理设备，包括处理器、存储器和收发器，其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器接收源网络切片发送的网络状态的信息，源网络切片为终端设备已接入的网络切片。若源网络切片的网络状态满足第一预设条件，处理器控制终端设备从源网络切片切换至目标网络切片。从而减轻源网络切片的负载压力，对源网络切片的网络资源进行优化。
结合第十一方面，在第十一方面的第一种实现方式中，处理器控制终端设备从源网络切片切换至目标网络切片，包括：处理器对终端设备进行目标网络切片接入授权。处理器通过收发器向终端设备发送第一切片控制请求。第一切片控制请求包括目标网络切片的标识。目标网络切片的标识用于指示终端设备根据目标网络切片的标识确定从源网络切片切换至目标网络切片的标识对应的目标网络切片。从而，减轻源网络切片的负载压力，对源网络切片的网络资源进行优化。
结合第十一方面的第一种实现方式，在第十一方面的第二种实现方式中，第一切片控制请求还包括目标网络切片对应的配置指示信息，配置指示信息用于指示终端设备根据配置指示信息进行协议配置以接入目标网络切片。从而，终端设备可以正确地接入到目标网络切片中。
结合第十一方面的第一种实现方式，或第十一方面的第二种实现方式，在第十一方面的第三种实现方式中，处理器对终端设备进行目标网络切片接入授权之后，处理器还用于：通过收发器向目标网络切片发送包括终端设备的标识的第二切片控制请求。第二切片控制请求用于指示目标网络切片为终端设备的标识对应的终端设备建立承载。当处理器确定目标网络切片已为终端设备建立承载时，通过收发器向源网络切片发送包括终端设备的标识的第三切片控制请求。第三切片控制请求用于指示源网络切片拆除为终端设备的标识对应的终端设备建立的承载。通过目标网络切片为终端设备建立承载，终端设备可以正确地接入到目标网络切片中。为了保障终端设备的业务不会发生中断，在目标网络切片为终端设备建立了承载之后，源网络切片才拆除为终端设备建立的承载。之后，源网络切片不再为该终端设备提供业务服务，减轻了源网络切片的负载压力。
结合第十一方面的第一种实现方式，或第十一方面的第二种实现方式，或第十一方面的第三种实现方式，在第十一方面的第四种实现方式中，处理器对终端设备进行目标网络 切片接入授权，包括：处理器从已接入源网络切片的终端设备标识集合中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若处理器根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则处理器对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第十一方面的第一种实现方式，或第十一方面的任意一种实现方式，在第十一方面的第五种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第十一方面，或第十一方面的任意一种实现方式，在第十一方面的第六种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第十一方面的第六种实现方式，在第十一方面的第七种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第十一方面的第一种实现方式，或第十一方面的任意一种实现方式，在第十一方面的第八种实现方式中，源网络切片发送的网络状态的信息中包括终端设备的标识；处理器对终端设备进行目标网络切片接入授权，包括：处理器从网络状态的信息中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若处理器根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则处理器对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第十一方面，或第十一方面的第一种实现方式，或第十一方面的第二种实现方式，或第十一方面的第八种实现方式，在第十一方面的第九种实现方式中，源网络切片发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
结合第十一方面，或第十一方面的任意一种实现方式，在第十一方面的第十种实现方式中，处理器通过收发器接收源网络切片发送的网络状态的信息，具体为：处理器通过收发器接收无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，无线接入网设备或核心网用户面设备或核心网控制面设备为源网络切片中的设备。
结合第十一方面，或第十一方面的任意一种实现方式，在第十一方面的第十一种实现方式中，处理器通过收发器接收源网络切片发送的网络状态的信息之前，处理器还用于：通过收发器接收终端设备发送的切片接入请求。切片接入请求中包括源网络切片的标识。处理器根据切片接入请求对终端设备进行源网络切片的标识对应的源网络切片接入授权。 处理器向终端设备发送源网络切片对应的配置指示信息；源网络切片对应的配置指示信息用于指示终端设备根据源网络切片对应的配置指示信息进行协议配置以接入源网络切片。从而，提高了终端设备在最初接入源网络切片时的成功率。
结合第十一方面的第十一种实现方式，在第十一方面的第十二种实现方式中，处理器根据对终端设备进行源网络切片接入授权之后，处理器还用于：通过收发器向源网络切片发送第六切片控制请求。第六切片控制请求包括终端设备的标识，第六切片控制请求用于指示源网络切片为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第十一方面的第十一种实现方式，或第十一方面的第十二种实现方式，在第十一方面的第十三种实现方式中，切片接入请求中还包括终端设备的标识。处理器根据切片接入请求对终端设备进行源网络切片的标识对应的源网络切片接入授权，包括：处理器从切片接入请求中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若处理器根据签约信息及源网络切片的标识确定终端设备能接入源网络切片，则处理器对终端设备进行源网络切片的标识对应的源网络切片接入授权。通过接入授权进一步提高了终端设备接入源网络切片时的成功率。
结合第十一方面，或第十一方面的任一实现方式，在第十一方面的第十四种实现方式中，源网络切片的网络状态的信息包括源网络切片中的无线接入网设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息，或者，源网络切片的网络状态的信息包括源网络切片中的核心网控制面设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第十二方面，本发明实施例提供了一种无线接入网设备，该无线接入网设备为终端设备已接入的源网络切片中的无线接入网设备。该无线接入网设备包括处理器、存储器和收发器，其中，存储器用于存储指令，处理器用于调用存储器存储的程序和数据执行如下操作：通过收发器向核心网管理设备发送源网络切片的网络状态的信息。若源网络切片的网络状态满足第一预设条件，通过收发器接收核心网管理设备发送的包括终端设备的标识的第二切片控制请求。根据第二切片控制请求拆除为终端设备的标识对应的终端设备建立的承载。之后，源网络切片不再为该终端设备提供业务服务，减轻了源网络切片的负载压力。
结合第十二方面，在第十二方面的第一种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第十二方面，或第十二方面的第一种实现方式，在第十二方面的第二种实现方式中，无线接入网设备发送的网络状态的信息中包括终端设备的标识。终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第十二方面，或第十二方面的第一种实现方式，或第十二方面的第二种实现方式， 在第十二方面的第三种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第十二方面的第三种实现方式，在第十二方面的第四种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第十二方面，或第十二方面的第二种实现方式，在第十二方面的第五种实现方式中，无线接入网设备发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
结合第十二方面，或第十二方面的任意一种实现方式，在第十二方面的第六种实现方式中，对终端设备初始接入源网络切片进行描述。处理器通过收发器接收核心网管理设备发送的第六切片控制请求，第六切片控制请求为核心网管理设备根据终端设备发送的切片接入请求发送给源网络切片的。第六切片接入请求中包括终端设备的标识。处理器根据第六切片控制请求为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第十二方面，或第十二方面的任一实现方式，在第十二方面的第七种实现方式中，源网络切片的网络状态的信息包括源网络切片中的无线接入网设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第十三方面，本发明实施例提供了一种核心网用户面设备，该核心网用户面设备为终端设备已接入的源网络切片中的核心网用户面设备。该核心网用户面设备包括处理器、存储器和收发器，其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器向核心网管理设备发送源网络切片的网络状态的信息。若源网络切片的网络状态满足第一预设条件，通过收发器接收核心网管理设备发送的包括终端设备的标识的第二切片控制请求。根据第二切片控制请求拆除为终端设备的标识对应的终端设备建立的承载。之后，源网络切片不再为该终端设备提供业务服务，减轻了源网络切片的负载压力。
结合第十三方面，在第十三方面的第一种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第十三方面，或第十三方面的第一种实现方式，在第十三方面的第二种实现方式中，核心网用户面设备发送的网络状态的信息中包括终端设备的标识。终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第十三方面，或第十三方面的第一种实现方式，或第十三方面的第二种实现方式，在第十三方面的第三种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第十三方面的第三种实现方式，在第十三方面的第四种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第十三方面，或第十三方面的第二种实现方式，在第十三方面的第五种实现方式中，核心网用户面设备发送的网络状态的信息中包括终端设备对源网络切片对应的源核心网用户面设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标核心网用户面设备发送的下行信号进行测量得到的第二测量值以及目标核心网用户面设备的标识。目标核心网用户面设备的标识用于核心网管理设备确定目标核心网用户面设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标核心网用户面设备对应的业务类型与源核心网用户面设备对应的业务类型不一致。
结合第十三方面，或第十三方面的任意一种实现方式，在第十三方面的第六种实现方式中，对终端设备初始接入源网络切片进行描述。处理器通过收发器接收核心网管理设备发送的第六切片控制请求，第六切片控制请求为核心网管理设备根据终端设备发送的切片接入请求发送给源网络切片的。第六切片接入请求中包括终端设备的标识。处理器根据第六切片控制请求为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第十三方面，或第十三方面的任一实现方式，在第十三方面的第七种实现方式中，源网络切片的网络状态的信息包括源网络切片中的无线接入网设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第十四方面，本发明实施例提供了一种核心网控制面设备，该核心网控制面设备为终端设备已接入的源网络切片中的核心网控制面设备。该核心网控制面设备包括处理器、存储器和收发器，其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器向核心网管理设备发送源网络切片的网络状态的信息。若源网络切片的网络状态满足第一预设条件，通过收发器接收核心网管理设备发送的包括终端设备的标识的第二切片控制请求。根据第二切片控制请求拆除为终端设备的标识对应的终端设备建立的承载。之后，源网络切片不再为该终端设备提供业务服务，减轻了源网络切片的负载压力。
结合第十四方面，在第十四方面的第一种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第十四方面，或第十四方面的第一种实现方式，在第十四方面的第二种实现方式中，核心网控制面设备发送的网络状态的信息中包括终端设备的标识。终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进 行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第十四方面，或第十四方面的第一种实现方式，或第十四方面的第二种实现方式，在第十四方面的第三种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第十四方面的第三种实现方式，在第十四方面的第四种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第十四方面，或第十四方面的第二种实现方式，在第十四方面的第五种实现方式中，核心网控制面设备发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
结合第十四方面，或第十四方面的任意一种实现方式，在第十四方面的第六种实现方式中，对终端设备初始接入源网络切片进行描述。处理器通过收发器接收核心网管理设备发送的第六切片控制请求，第六切片控制请求为核心网管理设备根据终端设备发送的切片接入请求发送给源网络切片的。第六切片接入请求中包括终端设备的标识。处理器根据第六切片控制请求为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第十四方面，或第十四方面的任一实现方式，在第十四方面的第七种实现方式中，源网络切片的网络状态的信息包括源网络切片中的核心网控制面设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第十五方面，本发明实施例提供了一种终端设备，包括处理器、存储器和收发器。其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器接收核心网管理设备发送的第一切片控制请求，终端设备已接入源网络切片。该第一切片控制请求为核心网管理设备根据源网络切片发送的网络状态的信息判断出源网络切片的网络状态满足第一预设条件时发送给终端设备的，第一切片控制请求包括目标网络切片的标识。处理器根据第一切片控制请求确定从源网络切片切换至目标网络切片的标识对应的目标网络切片。从而减轻源网络切片的负载压力，对源网络切片的网络资源进行优化。
结合第十五方面，在第十五方面的第一种实现方式中，第一切片控制请求还包括目标网络切片对应的配置指示信息；处理器通过收发器接收核心网管理设备发送的第一切片控制请求之后，处理器还用于：根据配置指示信息进行协议配置以接入目标网络切片。提高了终端设备接入目标网络切片的成功率。
结合第十五方面，或第十五方面的第一种实现方式，在第十五方面的第二种实现方式中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
结合第十五方面，或第十五方面的第一种实现方式，或第十五方面的第二种实现方式， 在第十五方面的第三种实现方式中，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
结合第十五方面的第三种实现方式，在第十五方面的第四种实现方式中，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
结合第十五方面，或第十五方面的第一种实现方式，在第十五方面的第五种实现方式中，源网络切片发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
结合第十五方面，或第十五方面的任意一种实现方式，在第十五方面的第六种实现方式中，处理器通过收发器接收核心网管理设备发送的第一切片控制请求之前，处理器还用于：通过收发器向核心网管理设备发送包括源网络切片的标识的切片接入请求。切片接入请求用于指示核心网管理设备对终端设备进行源网络切片的标识对应的源网络切片接入授权，并向终端设备发送源网络切片对应的配置指示信息。处理器通过收发器接收核心网管理设备发送的源网络切片对应的配置指示信息。处理器根据源网络切片对应的配置指示信息进行协议配置以接入源网络切片。从而，提高了终端设备在最初接入源网络切片时的成功率。
结合第十五方面的第六种实现方式，在第十五方面的第七种实现方式中，切片接入请求中还包括终端设备的标识。终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息及源网络切片的标识确定终端设备能接入源网络切片，则核心网管理设备对终端设备进行源网络切片的标识对应的源网络切片接入授权。通过接入授权进一步提高了终端设备接入源网络切片时的成功率。
结合第十五方面，或第十五方面的任一实现方式，在第十五方面的第八种实现方式中，源网络切片的网络状态的信息包括源网络切片中的无线接入网设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息，或者，源网络切片的网络状态的信息包括源网络切片中的核心网控制面设备的网络状态的信息和/或源网络切片中的核心网用户面设备的网络状态的信息。
第十六方面，本发明实施例提供了一种核心网管理设备，包括处理器、存储器和收发器。其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器接收目标网络切片发送的网络状态的信息，目标网络切片为终端设备接入失败的网络切片，终端设备已接入源网络切片。若目标网络切片的网络状态满足第三预设条件，处理器控制终端设备接入目标网络切片。从而满足终端设备同时接入两个网络切片的需求。
结合第十六方面，在第十六方面的第一种实现方式中，处理器控制终端设备接入目标网络切片，包括：处理器对终端设备进行目标网络切片接入授权。处理器通过收发器向终 端设备发送第四切片控制请求，第四切片控制请求中包括目标网络切片对应的配置指示信息。目标网络切片对应的配置指示信息用于指示终端设备根据该配置指示信息进行协议配置以接入目标网络切片，从而，终端设备可以正确地接入到目标网络切片中。
结合第十六方面的第一种实现方式，在第十六方面的第二种实现方式中，处理器对终端设备进行目标网络切片接入授权之后，处理器还用于：通过收发器向目标网络切片发送包括终端设备的标识的第五切片控制请求。第五切片控制请求用于指示目标网络切片为终端设备的标识对应的终端设备建立承载，从而，终端设备可以正确地接入到目标网络切片中。
结合第十六方面的第一种实现方式，或第十六方面的第二种实现方式中，在第十六方面的第三种实现方式中，处理器对终端设备进行目标网络切片接入授权，包括：处理器从预先记录的终端设备标识集合中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若处理器根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制，则处理器对终端设备进行目标网络切片接入授权。通过终端设备的签约信息来判断是否对终端设备进行接入授权，可以提高核心网管理设备对终端设备进行切片切换控制的准确性。
结合第十六方面，或第十六方面的任意一种实现方式，在第十六方面的第四种实现方式中，第三预设条件包括：目标网络切片的网络资源剩余值大于或等于第五预设阈值或目标网络切片的负载值小于或等于第六预设阈值。
结合第十六方面，或第十六方面的任意一种实现方式，在第十六方面的第五种实现方式中，处理器通过收发器接收目标网络切片发送的网络状态的信息，具体为：处理器通过收发器接收无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，无线接入网设备或核心网用户面设备或核心网控制面设备为目标网络切片中的设备。
结合第十六方面，或第十六方面的任意一种实现方式，在第十六方面的第六种实现方式中，处理器通过收发器接收目标网络切片发送的网络状态的信息之前，处理器还用于：通过收发器接收终端设备发送的切片接入请求。切片接入请求中包括源网络切片的标识。处理器根据切片接入请求对终端设备进行源网络切片的标识对应的源网络切片接入授权。处理器通过收发器向终端设备发送源网络切片对应的配置指示信息。源网络切片对应的配置指示信息用于指示终端设备根据源网络切片对应的配置指示信息进行协议配置以接入源网络切片。从而，提高了终端设备在最初接入源网络切片时的成功率。
结合第十六方面的第六种实现方式，在第十六方面的第七种实现方式中，处理器根据切片接入请求对终端设备进行源网络切片的标识对应的源网络切片接入授权之后，处理器还用于：通过收发器向源网络切片发送包括终端设备的标识的第六切片控制请求。第六切片控制请求用于指示源网络切片为终端设备的标识对应的终端设备建立承载。从而，保障了终端设备可以接入到源网络切片中。
结合第十六方面的第六种实现方式，或第十六方面的第七种实现方式，在第十六方面的第八种实现方式中，切片接入请求中还包括终端设备的标识。处理器根据切片接入请求对终端设备进行源网络切片的标识对应的源网络切片接入授权，包括：处理器从切片接入 请求中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若处理器根据签约信息及源网络切片的标识确定终端设备能接入源网络切片，则处理器对终端设备进行源网络切片的标识对应的源网络切片接入授权。通过接入授权进一步提高了终端设备接入源网络切片时的成功率。
结合第十六方面，或第十六方面的任一实现方式，在第十六方面的第九种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的无线接入网设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息，或者，目标网络切片的网络状态的信息包括目标网络切片中的核心网控制面设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第十七方面，本发明实施例提供了一种无线接入网设备，该无线接入网设备为终端设备接入失败的目标网络切片中的无线接入网设备，终端设备已接入源网络切片。目标网络切片包括处理器、存储器和收发器，其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器向核心网管理设备发送目标网络切片的网络状态的信息。若目标网络切片的网络状态满足第三预设条件，处理器通过收发器接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。处理器根据第五切片控制请求为终端设备的标识对应的终端设备建立承载，从而，保障已接入源网络切片的终端设备可以同时接入到目标网络切片中。
结合第十七方面，在第十七方面的第一种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第十七方面，或第十七方面的第一种实现方式，在第十七方面的第二种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的无线接入网设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第十八方面，本发明实施例提供了一种核心网用户面设备，该核心网用户面设备为终端设备接入失败的目标网络切片中的核心网用户面设备，终端设备已接入源网络切片。目标网络切片包括处理器、存储器和收发器，其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器向核心网管理设备发送目标网络切片的网络状态的信息。若目标网络切片的网络状态满足第三预设条件，处理器通过收发器接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。处理器根据第五切片控制请求为终端设备的标识对应的终端设备建立承载，从而，保障已接入源网络切片的终端设备可以同时接入到目标网络切片中。
结合第十八方面，在第十八方面的第一种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第十八方面，或第十八方面的第一种实现方式，在第十八方面的第二种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的无线接入网设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第十九方面，本发明实施例提供了一种核心网控制面设备，该核心网控制面设备为终端设备接入失败的目标网络切片中的核心网控制面设备，终端设备已接入源网络切片。目 标网络切片包括处理器、存储器和收发器，其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器向核心网管理设备发送目标网络切片的网络状态的信息。若目标网络切片的网络状态满足第三预设条件，处理器通过收发器接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。处理器根据第五切片控制请求为终端设备的标识对应的终端设备建立承载，从而，保障已接入源网络切片的终端设备可以同时接入到目标网络切片中。
结合第十九方面，在第十九方面的第一种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第十九方面，或第十九方面的第一种实现方式，在第十九方面的第二种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的核心网控制面设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第二十方面，本发明实施例提供了一种终端设备，包括处理器、存储器和收发器。其中，存储器用于存储指令，处理器用于调用存储器存储的指令执行如下操作：通过收发器接收核心网管理设备发送的第四切片控制请求，终端设备已接入源网络切片。第四切片控制请求包括目标网络切片对应的配置指示信息。第四切片控制请求为核心网管理设备根据目标网络切片发送的网络状态的信息判断出目标网络切片的网络状态满足第三预设条件时发送给终端设备的。处理器根据目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。从而满足终端设备同时接入两个网络切片的需求。
结合第二十方面，在第二十方面的第一种实现方式中，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
结合第二十方面，或第二十方面的第一种实现方式，在第二十方面的第二种实现方式中，目标网络切片的网络状态的信息包括目标网络切片中的无线接入网设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息，或者，目标网络切片的网络状态的信息包括目标网络切片中的核心网控制面设备的网络状态的信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。
第二十一方面，本发明实施例提供了一种核心网管理设备，该核心网管理设备包括用于执行上述第一方面或第一方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第二十二方面，本发明实施例提供了一种无线接入网设备，该无线接入网设备包括用于执行上述第二方面或第二方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第二十三方面，本发明实施例提供了一种核心网用户面设备，该核心网用户面设备包括用于执行上述第三方面或第三方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第二十四方面，本发明实施例提供了一种核心网控制面设备，该核心网控制面设备包括用于执行上述第四方面或第四方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第二十五方面，本发明实施例提供了一种终端设备，该终端设备包括用于执行上述第 五方面或第五方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第二十六方面，本发明实施例提供了一种核心网管理设备，该核心网管理设备包括用于执行上述第六方面或第六方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第二十七方面，本发明实施例提供了一种无线接入网设备，该无线接入网设备包括用于执行上述第七方面或第七方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第二十八方面，本发明实施例提供了一种核心网用户面设备，该核心网用户面设备包括用于执行上述第八方面或第八方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第二十九方面，本发明实施例提供了一种核心网控制面设备，该核心网控制面设备包括用于执行上述第九方面或第九方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第三十方面，本发明实施例提供了一种终端设备，该终端设备包括用于执行上述第十方面或第十方面任意一种实现方式所描述的网络切片控制方法的模块或单元。
第三十一方面，本发明实施例提供了一种通信系统，包括核心网管理设备、无线接入网设备和终端设备，其中，核心网管理设备为第十一方面或第二十一方面所描述的核心网管理设备，无线接入网设备为第十二方面或第二十二方面所描述的无线接入网设备，终端设备为第十五方面或第二十五方面所描述的终端设备；或者，核心网管理设备为第十六方面或第二十六方面所描述的核心网管理设备，无线接入网设备为第十七方面或第二十七方面所描述的无线接入网设备，终端设备为第二十方面或第三十方面所描述的终端设备。
第三十二方面，本发明实施例提供了一种通信系统，包括核心网管理设备、核心网用户面设备和终端设备，其中，核心网管理设备为第十一方面或第二十一方面所描述的核心网管理设备，核心网用户面设备为第十三方面或第二十三方面所描述的核心网用户面设备，终端设备为第十五方面或第二十五方面所描述的终端设备；或者，核心网管理设备为第十六方面或第二十六方面所描述的核心网管理设备，核心网用户面设备为第十八方面或第二十八方面所描述的核心网用户面设备，终端设备为第二十方面或第三十方面所描述的终端设备。
第三十三方面，本发明实施例提供了一种通信系统，包括核心网管理设备、核心网控制面设备和终端设备，其中，核心网管理设备为第十一方面或第二十一方面所描述的核心网管理设备，核心网控制面设备为第十四方面或第二十四方面所描述的核心网控制面设备，终端设备为第十五方面或第二十五方面所描述的终端设备；或者，核心网管理设备为第十六方面或第二十六方面所描述的核心网管理设备，核心网控制面设备为第十九方面或第二十九方面所描述的核心网控制面设备，终端设备为第二十方面或第三十方面所描述的终端设备。
附图说明
图1是本专利申请提供的一种网络系统的架构示意图；
图2是本专利申请提供的另一种网络系统的架构示意图；
图3是本专利申请提供的网络切片控制方法实施例一的信令交互图；
图4是本专利申请提供的网络切片控制方法实施例二的信令交互图；
图5是本专利申请提供的网络切片控制方法实施例三的信令交互图；
图6是本专利申请提供的网络切片控制方法实施例四的信令交互图；
图7是本专利申请提供的网络切片控制方法实施例五的信令交互图；
图8是本专利申请提供的网络切片控制方法实施例六的信令交互图；
图9是本专利申请提供的一种核心网管理设备的结构示意图；
图10是本专利申请提供的一种无线接入网设备的结构示意图；
图11是本专利申请提供的一种核心网用户面设备的结构示意图；
图12是本专利申请提供的一种核心网控制面设备的结构示意图；
图13是本专利申请提供的一种终端设备的结构示意图；
图14是本专利申请提供的另一种核心网管理设备的结构示意图；
图15是本专利申请提供的另一种无线接入网设备的结构示意图；
图16是本专利申请提供的另一种核心网用户面设备的结构示意图；
图17是本专利申请提供的另一种核心网控制面设备的结构示意图；
图18是本专利申请提供的另一种终端设备的结构示意图。
具体实施方式
图1为本专利申请提供的一种网络系统的架构示意图。如图1所示，每个网络切片中包括无线接入网(英文：Radio Access Network，简称：RAN)设备和核心网(英文：Core Network，简称：CN)用户面(英文：User Plane，简称：UP)设备。所有的网络切片共享公共的核心网控制面(英文：Control Plane，简称：CP)设备，公共的核心网控制面设备可以提供的功能包括：会话管理、移动性管理、用户认证、业务授权，服务质量控制等。网络切片内的无线接入网设备与核心网用户面设备通过接口相连，无线接入网设备与公共的核心网控制面设备通过接口相连，核心网用户面设备与公共的核心网控制面设备也通过接口相连。其中，无线接入网设备的功能包括但不限于：对终端设备的移动性管理、呼叫处理、链路管理、安全加密、头压缩、调度、编码、调制、解调、重传、分段、汇聚、射频等功能。核心网用户面设备的功能包括但不限于：进行数据包的路由、过滤和转发等功能。核心网用户面设备将来自终端设备的用户数据发送给其他设备，还可以将来自其他设备的数据发给终端设备，其中，其他设备包括但不限于服务器，分组数据网络(英文：Packet Data Network，简称：PDN)。
在图1中，终端设备14接入到网络切片11中。网络切片11包括无线接入网设备111和核心网用户面设备112。终端设备15接入到网络切片12中。网络切片12包括无线接入网设备121和核心网用户面设备122。终端设备16接入到网络切片13中。网络切片13包括无线接入网设备131和核心网用户面设备132。网络切片11、网络切片12和网络切片13各自对应的业务类型可以相同或不同。其中，无线接入网设备111、无线接入网设备121和无线接入网设备131可以是三个相互独立的无线接入网设备，也可以是同一无线接入网 设备。若无线接入网设备111、无线接入网设备121和无线接入网设备131是同一无线接入网设备，则网络切片11、网络切片12和网络切片13各自占用该无线接入网设备的不同资源，以此相互区别。其中，该资源包括但不限于：天线，波束，时频资源，存储资源等。
本发明实施例中所描述的无线接入网设备可以是2G(如全球移动通信系统(英文：Global System for Mobile Communications，简称：GSM)或码分多址(英文：Code Division Multiple Access，简称：CDMA))系统中的基站收发信机(英文：Base Transceiver Station，简称：BTS)，也可以是3G(如通用移动通信系统(英文：Universal Mobile Telecommunications System，简称：UMTS)、宽带码分多址(英文：Wideband Code Division Multiple Access，简称：WCDMA)、时分同步码分多址(英文：Time Division-Synchronous Code Division Multiple Access，简称：TD-SCDMA))系统中的基站(英文：NodeB，简称：NB)，还可以是长期演进(英文：Long Term Evolution，简称：LTE)系统中的演进型基站(英文：evolved Node B，简称：eNB)，还可以是未来5G网络中的无线接入网设备。
所有的网络切片公共的核心网控制面设备包括移动性管理设备移动性管理设备17、归属签约用户服务器18、策略与计费规则功能设备19、切片管理器(英文：Slice Manager，简称：SM)20以及协议配置设备21。移动性管理设备移动性管理设备17、切片管理器20和协议配置设备21可以设置在同一物理实体上，也可以分开设置在不同的物理实体上，本实施例以分开设置为例进行说明。切片管理器20分别与移动性管理设备移动性管理设备17和协议配置设备21连接，且移动性管理设备移动性管理设备17、切片管理器20和协议配置设备21分别与归属签约用户服务器18或策略与计费规则功能设备19连接。
其中，移动性管理设备移动性管理设备17的主要功能包括：接入控制(包括安全和许可控制)、移动性管理(跟踪终端设备的位置)、附着与去附着、会话管理功能(包括对分组核心演进(英文：Evolved Packet Core，简称：EPC)承载的建立、修改和释放)等。归属签约用户服务器18主要用于存储用户的签约信息，负责管理用户的签约数据及移动用户的位置信息。策略与计费规则功能设备19的功能主要包括：根据用户的签约信息，使用的业务信息制定策略和计费决策，比如服务质量等级、计费规则等。
图1中实线
Figure PCTCN2017098800-appb-000001
表示用户面的连接，虚线
Figure PCTCN2017098800-appb-000002
表示控制面的连接。终端设备与网络切片之间既有用户面的连接也有控制面的连接。本实施例中的无线接入网设备具有接入网控制面功能和接入网用户面功能。无线接入网设备与移动性管理设备移动性管理设备也通过接口连接。
以下各实施例中所描述的核心网管理设备包括切片管理器20和协议配置设备21。切片管理器20和协议配置设备21可以位于同一个物理实体内，也可以位于不同的物理实体内，两者之间通过接口连接。核心网管理设备可以位于现网中的实体中，其逻辑功能上实现核心网管理设备的功能。切片管理器20用于负责网络切片的生成、资源分配、接入选择及接入授权等。其中，切片管理器20通过建立各个网络切片的连接与承载来完成网络切片的生成。根据终端设备的签约信息为终端设备选择默认的网络切片来实现接入选择。当终端设备需要切换或者同时再接入网络切片时，在终端设备可以切换至目标网络切片或者接入目标网络切片时对终端设备进行授权来实现接入授权。协议配置设备21用于根据网络切片上所支持的业务类型，对网络切片上的网络实体功能进行协议配置，以及选择与终端设 备需要接入的网络切片对应的协议配置信息。不同的网络切片上可以承载不同类型的业务。终端设备可以接入不同的网络切片以进行不同的业务。
当终端设备14上进行第一种类型的业务时，它可以接入到源网络切片中，该源网络切片假设是网络切片11。本发明实施例提供的网络切片控制方法可以应用于以下三种场景。场景一：终端设备14一开始接入到网络切片11，但是由于第一种类型的业务是一种较耗费网络资源的业务，一段时间后，切片管理器20出于网络资源优化的目的，发起把终端设备14切换至网络切片12，网络切片12是低功耗的默认网络切片或者负载较低的目标网络切片。场景二：终端设备14一开始接入到网络切片11，一段时间后，终端设备14从网络切片11的无线接入网设备111的覆盖范围移动到网络切片12的无线接入网设备121的覆盖范围，但是网络切片12并不支持第一种类型的业务，只支持默认业务,默认业务一般可以支持用户的基本通信业务需求，比如，语音通话，短消息等。为保障用户可以正常的接入网络，不至于发生断网。切片管理器20把终端设备14切换至网络切片12。场景三：终端设备14一开始接入到网络切片11，一段时间后，切片管理器发起终端设备同时接入到网络切片12，以使得终端设备14可以进行第二种类型的业务。比如，终端设备14开始曾请求接入到网络切片12，但是由于网络切片12资源不足，该接入请求被拒绝。过了一段时间后，网络切片12有用户释放，资源充足，因此切片管理器20发起终端设备14接入网络切片12的过程。
本发明实施例中的终端设备可以是手持设备、车载设备、可穿戴设备、计算设备，以及各种形式的用户设备(英文：User Equipment，简称：UE)，移动台(英文：Mobile Station，简称：MS)及终端(terminal)等。
图2为本专利申请提供的另一种网络系统的架构示意图。如图2所示，网络切片在核心网进行切分，所有的网络切片共享无线接入网设备，例如网络切片21、网络切片22和网络切片23共享无线接入网设备25。并且所有的网络切片共享公共核心网控制面设备，公共核心网控制面设备可以提供的功能包括：移动性管理、用户认证等。本发明实施例相关的切片管理器和协议配置设备也属于公共核心网控制面设备。每个网络切片拥有各自的核心网用户面设备和核心网控制面设备，每个网络切片的核心网控制面设备提供的功能可以包括：会话管理等。将部分核心网控制面的功能单独设置在各个网络切片上可以使得各个网络切片之间相互隔离，各个网络切片之间不会相互影响。网络切片内的核心网控制面设备与核心网用户面设备通过接口相连，网络切片内的核心网控制面设备与公共的核心网控制面设备也通过接口相连。
公共的核心网控制面设备包括移动性管理设备移动性管理设备26、归属签约用户服务器27、策略与计费规则功能设备28、切片管理器29以及协议配置设备30。移动性管理设备移动性管理设备26、归属签约用户服务器27、策略与计费规则功能设备28、切片管理器29以及协议配置设备30的功能可参考图1所示实施例中的描述，此处不再赘述。图2中实线
Figure PCTCN2017098800-appb-000003
表示用户面的连接，虚线
Figure PCTCN2017098800-appb-000004
表示控制面的连接。
当终端设备24上进行第一种类型的业务时，它可以接入到源网络切片中，该源网络切片假设是网络切片21。本发明实施例提供的网络切片控制方法可以应用于以下两种场景。 场景一：终端设备24一开始接入到网络切片21，但是由于第一种类型的业务是一种较耗费网络资源的业务，一段时间后，切片管理器29出于网络资源优化的目的，发起把终端设备24切换至网络切片22，网络切片22是低功耗的默认网络切片或者负载较低的目标网络切片。场景二，终端设备24一开始接入到网络切片21，一段时间后，终端设备24从无线接入网设备25的覆盖范围移动到另一无线接入网设备(图未示)的覆盖范围，另一无线接入网设备并不支持第一种类型的业务，只支持默认业务,默认业务一般可以支持用户的基本通信业务需求，比如，语音通话，短消息等。为保障用户可以正常的接入网络，不至于发生断网。切片管理器29把终端设备24切换至网络切片22。场景三，终端设备24一开始接入到网络切片21，一段时间后，切片管理器发起终端设备24同时接入到网络切片22，以使得终端设备24可以进行第二种类型的业务。比如，终端设备24开始曾请求接入到网络切片22，但是由于网络切片22资源不足，该接入请求被拒绝。过了一段时间后，网络切片22有用户释放，资源充足，因此切片管理器29发起终端设备24接入网络切片22的过程。
本发明实施例中的终端设备可以是手持设备、车载设备、可穿戴设备、计算设备，以及各种形式的UE，MS及终端等。
图3为本专利申请提供的网络切片控制方法实施例一的信令交互图，该实施例可以应用在图1所示网络架构中。在本发明实施例中，源网络切片为终端设备已接入的网络切片，目标网络切片为终端设备将要切换至的网络切片。源网络切片和目标网络切片中都包括无线接入网设备和核心网用户面设备。本发明实施例可以应用于场景一：终端设备一开始接入到源网络切片，但是由于源网络切片的业务是一种较耗费网络资源的业务，一段时间后，核心网管理设备出于网络资源优化的目的，发起把终端设备切换至目标网络切片，以减轻源网络切片的负载压力，其中，目标网络切片为网络资源耗费较低的默认网络切片或负载低的网络切片。如图3所示，本发明实施例提供的网络切片控制方法包括如下步骤：
S301：源网络切片的无线接入网设备向核心网管理设备发送源网络切片的网络状态的信息。核心网管理设备接收源网络切片的无线接入网设备发送的源网络切片的网络状态的信息。
具体的，源网络切片为终端设备根据用户需求预先接入的网络切片。为了避免源网络切片中接入的终端设备过多，造成源网络切片已接入的终端设备的性能下降，可以由核心网管理设备对源网络切片的网络状态进行监控，当源网络切片的网络状态满足预设条件时，核心网管理设备将已接入源网络切片的部分或全部终端设备切换至目标网络切片中，以减轻源网络切片的负载压力。源网络切片的无线接入网设备向核心网管理设备发送源网络切片的网络状态信息，可以使得核心网管理设备获知源网络切片的网络状态，从而根据网络状态对源网络切片进行网络资源优化。源网络切片的无线接入网设备可以周期性的发送网络状态的信息。例如，源网络切片的无线接入网设备每五分钟发送一次网络状态的信息。源网络切片和核心网管理设备可以预先约定周期。源网络切片的无线接入网设备还可以基于事件触发发送网络状态的信息。例如，当源网络切片的负载高于某一门限值时，触发向核心网管理设备发送网络状态的信息。
其中，源网络切片的网络状态信息可以包括源网络切片中的无线接入网设备的网络状态的信息，源网络切片的网络状态信息可以包括源网络切片中的核心网用户面设备的网络状态的信息，源网络切片的网络状态信息还可以既包括源网络切片中的无线接入网设备的网络状态的信息，又包括源网络切片中的核心网用户面设备的网络状态的信息。网络状态的信息可以包括网络资源剩余值或负载值，例如，网络状态的信息为当前可用资源占网络切片总的可用资源的比值或者当前网络负载与网络最大容量的比值。网络状态的信息也可以包括网络状态，例如，网络资源不足或负载过大。
需要说明的是，如果核心网管理设备与移动性管理设备移动性管理设备集成设置在同一物理实体上，则源网络切片的无线接入网设备将自身的网络状态信息发送给核心网管理设备。核心网管理设备接收源网络切片的无线接入网设备发送的网络状态的信息。如果核心网管理设备与移动性管理设备移动性管理设备分开设置在不同的物理实体上，则源网络切片中的无线接入网设备可以先将自身的网络状态的信息发送给移动性管理设备移动性管理设备。移动性管理设备移动性管理设备再将源网络切片的网络状态信息发送给核心网管理设备。核心网管理设备接收移动性管理设备移动性管理设备发送的源网络切片的网络状态的信息。
S302：核心网管理设备判断源网络切片的网络状态是否满足第一预设条件，若是，执行步骤S303。
其中，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。例如，第一预设阈值为：10％，第二预设阈值为：90％。当源网络切片的网络资源剩余值小于或等于第一预设阈值或源网络切片的负载值大于或等于第二预设阈值时，核心网管理设备判定源网络切片的网络状态满足第一预设条件。第一预设条件还可以为：网络状态为网络资源不足或负载过大。当源网络切片的网络状态的信息中指示网络资源不足或负载过大时，核心网管理设备判定源网络切片的网络状态满足第一预设条件。
S303：核心网管理设备控制终端设备从源网络切片切换至目标网络切片。
当源网络切片的网络状态满足第一预设条件时，核心网管理设备可以将源网络切片连接的部分或者全部终端设备切换到目标网络切片上，以减轻源网络切片的负载压力。其中，目标网络切片可以为网络资源耗费较低的默认网络切片。默认网络切片只支持用户的基本通信业务需求，比如，语音通话，短消息等。并且，默认网络切片可支持大容量用户。或者，目标网络切片为满足第二预设条件的网络切片。该第二预设条件可以为：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。例如，第三预设阈值为：50％，第四预设阈值为：50％。各个网络切片可以周期性或事件性触发向核心网管理设备发送自身的网络状态信息，以使得核心网管理设备可以获知各个网络切片的网络状态，从而在终端设备已接入的源网络切片的负载较大或者网络资源剩余不足时，选择一个负载较小或网络资源剩余充足的目标网络切片进行切片切换。
具体的，核心网管理设备控制终端设备从源网络切片切换至目标网络切片这一步骤包括以下步骤S3031-S3038，各个步骤的详细描述如下：
S3031：核心网管理设备对终端设备进行目标网络切片接入授权。
具体地，在一种实现方式中，核心网管理设备记录有已接入源网络切片的所有终端设 备的标识。核心网管理设备从已接入源网络切片的终端设备标识集合中获取一个或多个终端设备的标识。举例来说，终端设备的标识可以是国际移动用户识别码(英文：International Mobile Subscriber Identification Number，简称：IMSI)等。核心网管理设备根据终端设备的标识从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。这里的签约信息可以包括终端设备在入网时签约的是否允许核心网管理设备发起切片切换的指示信息。可选的，签约信息中还可以包括用户的服务质量(英文：Quality of Service，简称：QoS)信息，QoS信息中可以包括：时延、误报率、数据传输速率、带宽、服务优先级中的一个或多个。
或者，源网络切片的无线接入网设备在向核心网管理设备发送源网络切片的网络状态信息时，还可以将源网络切片当前连接的一个或多个网络资源占用较大的终端设备的标识发送给核心网管理设备。核心网管理设备从网络状态信息中获取终端设备的标识，根据终端设备的标识从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。
其中，核心网管理设备在根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制时，可以采用以下方式判断：若终端设备的签约信息中包括用于指示接受核心网管理设备发起的切片切换的指示信息，则核心网管理设备确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制。当然，核心网管理设备也可以采用其他方式进行判断，本实施例对此不做限制。
其中，核心网管理设备在确定哪些已接入源网络切片的终端设备需要进行切换时还可以考虑终端设备的QoS信息，并且需要进行切片切换的终端设备的数量可以由核心网管理设备预先设置，也可以由核心网管理设备根据源网络切片的网络状态动态调整。以QoS信息中的服务优先级为例进行说明，如果源网络切片当前连接的终端设备包括3个，分别为终端设备1、终端设备2和终端设备3，其中，3个终端设备的服务优先级分别为：优先级1、优先级2和优先级3。则核心网管理设备如果确定出这3个终端设备均允许核心网管理设备对终端设备进行网络切片切换控制，且核心网管理设备预先设置的进行切片切换的终端设备数量为2，那么核心网管理设备选择服务优先级较小的终端设备2和终端设备3进行切片切换。从而保障了高优先级的终端设备的用户的业务不受影响，使得低优先级的终端设备的用户切换至默认网络切片中，不至于出现断网的情况。避免源网络切片发生网络瘫痪导致所有终端设备都无法接入网络的情形。
S3032：核心网管理设备通过源网络切片的无线接入网设备向终端设备发送第一切片控制请求。终端设备接收核心网管理设备通过源网络切片的无线接入网设备发送的第一切片控制请求。
其中，第一切片控制请求中至少包括目标网络切片的标识。目标网络切片的标识用于终端设备确认切换至哪一个网络切片。
可选的，第一切片控制请求中还可以携带请求类型的标识，用以指示第一切片控制请求是何种类型。在本发明实施例中，第一切片控制请求携带的请求类型标识为切片切换类型标识。
具体地，如果核心网管理设备与移动性管理设备移动性管理设备集成设置在同一物理实体上，则核心网管理设备可以先将第一切片控制请求发送给源网络切片的无线接入网设备，源网络切片的无线接入网设备再将第一切片控制请求发送给终端设备。终端设备接收源网络切片的无线接入网设备发送的第一切片控制请求。如果核心网管理设备与移动性管理设备移动性管理设备分开设置在不同的物理实体上，则核心网管理设备可以先将第一切片控制请求发送给控制面的移动性管理设备。移动性管理设备再将第一切片控制请求发送给源网络切片中的无线接入网设备。源网络切片中的无线接入网设备再将第一切片控制请求发送给终端设备。终端设备接收源网络切片中的无线接入网设备发送的第一切片控制请求。
可选的，若目标网络切片对应的业务类型与源网络切片对应的业务类型不一致，第一切片控制请求中还包括目标网络切片对应的配置指示信息。该配置指示信息用于指示终端设备根据该配置指示信息进行协议配置以接入目标网络切片。
目标网络切片对应的配置指示信息可以是目标网络切片对应的协议配置信息，也可以是目标网络切片的标识，还可以是目标网络切片对应的业务类型。
S3033：终端设备根据第一切片控制请求确定从源网络切片切换至目标网络切片。
S3034：核心网管理设备向目标网络切片的无线接入网设备发送第二切片控制请求，目标网络切片的无线接入网设备接收核心网管理设备发送的第二切片控制请求。
其中，该第二切片控制请求包括终端设备的标识。第二切片控制请求用于指示目标网络切片为终端设备建立承载。
可选的，第二切片控制请求中还可以携带请求类型的标识，用以指示第二切片控制请求是何种类型。在本发明实施例中，第二切片控制请求携带的请求类型标识为切片切换类型标识。
S3035：目标网络切片根据第二切片控制请求为终端设备建立承载。
具体的，目标网络切片建立终端设备到无线接入网设备的控制面承载以及无线接入网设备到核心网管理设备的控制面承载，以及建立终端设备到无线接入网设备的用户面承载以及无线接入网设备到核心网用户面设备的用户面承载。
S3036：当目标网络切片为终端设备建立了承载之后，目标网络切片的无线接入网设备向核心网管理设备发送承载建立完成确认消息，核心网管理设备接收目标网络切片的无线接入网设备发送的承载建立完成确认消息。
核心网管理设备根据该承载建立完成确认消息可以确定出目标网络切片已为终端设备建立承载。
S3037：核心网管理设备向源网络切片的无线接入网设备发送第三切片控制请求，源网络切片的无线接入网设备接收核心网管理设备发送的第三切片控制请求。
其中，该第三切片控制请求包括终端设备的标识。第三切片控制请求用于指示源网络切片拆除为终端设备建立的承载。
可选的，第三切片控制请求中还可以携带请求类型的标识，用以指示第三切片控制请求是何种类型。在本发明实施例中，第三切片控制请求携带的请求类型标识为切片切换类型标识。
S3038：源网络切片根据第三切片控制请求拆除为终端设备建立的承载。
具体的，源网络切片拆除终端设备到无线接入网设备的用户面承载以及无线接入网设备到核心网管理设备的控制面承载，以及拆除终端设备到无线接入网设备的用户面承载以及无线接入网设备到核心网用户面设备的用户面承载。拆除为终端设备建立的承载，可以释放相应的资源，节省网络资源占用。
S3039：源网络切片的无线接入网设备向核心网管理设备发送切片切换成功消息。核心网管理设备接收源网络切片的无线接入网设备发送的切片切换成功消息。
可选的，步骤S3033之后，还可以包括步骤S30310：终端设备通过源网络切片的无线接入网设备向核心网管理设备发送切片控制响应消息。核心网管理设备接收终端设备通过源网络切片的无线接入网设备发送的切片控制响应消息。该切片控制响应消息用于指示终端设备接受切片切换操作。核心网管理设备接收到该切片控制响应消息后，才会触发执行步骤S3034。
可选的，若第一切片控制请求中还包括目标网络切片对应的配置指示信息，则在步骤S3033之后，还包括步骤S30311：终端设备根据目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。步骤S30310与S30311的执行顺序不进行限定。
其中，目标网络切片对应的配置指示信息可以是目标网络切片对应的协议配置信息，包括需要配置哪些协议层，以及每个协议层需要配置哪些功能等。终端设备根据目标网络切片对应的协议配置信息进行相应配置。或者，目标网络切片对应的配置指示信息还可以是目标网络切片的标识，终端设备在本地保存不同网络切片的标识对应的协议配置信息。终端设备根据核心网管理设备发送的目标网络切片的标识，查找目标网络切片的标识对应的协议配置信息，并按照该协议配置信息进行相应配置。或者，目标网络切片对应的配置指示信息还可以是目标网络切片对应的业务类型。终端设备在本地保存不同业务类型网络切片对应的协议配置信息，终端设备根据核心网管理设备发送的目标网络切片的业务类型，查找目标网络切片的业务类型对应的协议配置信息，并按照该协议配置信息进行相应配置。
需要说明的是，若目标网络切片对应的配置指示信息是目标网络切片对应的协议配置信息，当核心网管理设备中的切片管理器和协议配置设备位于同一个实体时，即集成在一起时，核心网管理设备在对终端设备进行目标网络切片接入授权后，可以从自身获取目标网络切片对应的协议配置信息。
具体地，本发明实施例中的终端设备为具有协议配置功能的终端设备。
在终端设备根据目标网络切片对应的协议配置信息进行协议配置时，有以下两种实现方式：
第一种实现方式：终端设备上只存储有一种基本协议配置信息，终端设备在获取到目标网络切片对应的协议配置信息后，在该基本协议配置信息的基础上，进行配置，以确保自身的协议栈能与目标网络切片相匹配。
第二种实现方式：终端设备上存储有多个不同的协议配置信息，终端设备在获取到目 标网络切片对应的协议配置信息后，选择与目标网络切片对应的协议配置信息相同的协议配置信息即可完成配置。
至此，终端设备从源网络切片切换到了目标网络切片中。
需要说明的是，本实施例中的步骤S3032和步骤S3034的执行顺序不作具体限定。当核心网管理设备对终端设备进行目标网络切片接入授权以后，可以先通过源网络切片的无线接入网设备向终端设备发送第一切片控制请求，再向目标网络切片的无线接入网设备发送第二切片切换控制请求。或者，当核心网管理设备对终端设备进行目标网络切片接入授权以后，可以先向目标网络切片的无线接入网设备发送第二切片切换控制请求，再通过源网络切片的无线接入网设备向终端设备发送第一切片控制请求。而步骤S3035与S3038之间具有时序关系，即先建立终端设备与目标网络切片之间的承载，之后再拆除终端设备与源网络切片之间的承载。这样可以保证终端设备上的业务不会中断。
举例来说，终端设备已经接入一个演进的大带宽(英文：evolved Massive Broadband，简称：eMBB)网络切片进行视频业务，由于eMBB业务是一种较耗费网络资源的业务，一段时间后，eMBB网络切片由于接入的终端设备较多，导致负载过大，剩余网络资源较少，无法支持当前接入的所有终端设备的正常使用，为了避免出现网络瘫痪从而导致终端设备掉线问题，核心网管理设备将已接入eMBB网络切片的部分或者全部终端设备由eMBB切换至默认网络切片或者满足第二预设条件的其他网络切片上，降低eMBB网络切片的负载压力。其中，该第二预设条件可例如，负载值小于或等于某一门限值或网络资源剩余值大于或等于某一门限值。
本发明实施例提供的网络切片控制方法，通过终端设备接入源网络切片，源网络切片的无线接入网设备向核心网管理设备发送网络状态的信息，核心网管理设备接收源网络切片的无线接入网设备发送的网络状态的信息。若源网络切片的网络状态满足第一预设条件，核心网管理设备控制已接入源网络切片的终端设备从源网络切片切换至目标网络切片，从而减轻源网络切片的网络负载，实现对源网络切片的资源优化。
此外，图3所示实施例还可以应用于场景二：终端设备一开始接入到源网络切片，一段时间后，终端设备从源网络切片中的无线接入网设备覆盖范围移动到目标网络切片中的无线接入网设备覆盖范围，但是目标网络切片并不支持源网络切片对应的业务，为了保障终端设备不断网，核心网管理设备把终端设备由源网络切片切换至目标网络切片。为了便于描述，将目标网络切片中的无线接入网设备命名为目标无线接入网设备，将源网络切片中的无线接入网设备命名为源无线接入网设备，源无线接入网设备是终端设备当前驻留的无线接入网设备。
在场景二中，各个步骤与图3所示场景一中的各个步骤的实现过程类似，不同点在于，针对步骤S302，终端设备周期的向源网络切片的无线接入网设备发送测量报告，用于向源无线接入网设备反馈终端设备和源无线接入网设备之间的信道质量，该信道质量可以通过信号测量值来体现。该测量报告也可以是终端设备基于源无线接入网设备发送的测量报告请求进行反馈。源无线接入网设备向终端设备发送测量报告上报请求，终端设备接收源无线接入网设备发送的测量报告上报请求。终端设备将测量报告发送给源无线接入网设备。源无线接入网设备接收终端设备发送的测量报告。测量报告还可以是终端设备的下行测量 结果满足某一测量事件时上报给源无线接入网设备的。测量事件可以为：终端设备对源无线接入网设备的下行信号测量值低于某一门限值且终端设备对目标无线接入网设备的下行信号测量值高于某一门限值。测量事件还可以为：终端设备对目标无线接入网设备的下行信号测量值高于某一门限值。这里，目标无线接入网设备可以是源无线接入网设备的某个相邻的无线接入网设备。
其中，测量报告中包含终端设备对源无线接入网设备的下行信号进行测量得到的第一测量值、终端设备对目标无线接入网设备的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。当源无线接入网设备根据测量报告确定出终端设备对源无线接入网设备的测量值低于某一门限，或者当终端设备对源无线接入网设备的测量值低于某一门限且终端设备对目标无线接入网设备的测量值高于某一门限时，源无线接入网设备向核心网管理设备发送网络状态的信息。核心网管理设备接收源无线接入网设备发送的网络状态的信息。该网络状态的信息中包括终端设备对源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。
本场景中的第一预设条件为：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。具体的，核心网管理设备根据源无线接入网设备发送的网络状态的信息判断第二测量值是否大于第一测量值，若是，表明终端设备由源无线接入网设备覆盖范围移动到了目标无线接入网设备覆盖范围，则核心网管理设备根据目标无线接入网设备的标识查找目标无线接入网设备对应的业务类型，并根据源无线接入网设备的标识查找源无线接入网设备对应的业务类型。核心网管理设备判断目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型是否不一致，若是，则核心网管理设备触发将终端设备由源网络切片切换至目标网络切片。可选的，源无线接入网设备的标识可以携带在网络状态的信息中发送给核心网管理设备。
可选的，网络状态的信息中还包括终端设备的标识，核心网管理设备对终端设备进行目标网络切片接入授权具体为：核心网管理设备从网络状态的信息中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。
需要说明的是，由于在场景二中，目标网络切片中的无线接入网设备对应的业务类型与源网络切片中的无线接入网设备对应的业务类似不一致，因此，终端设备需要根据核心网管理设备发送的目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。因此，在场景二中，终端设备需要执行步骤S30311。
本发明实施例提供的网络切片控制方法，通过终端设备接入源网络切片，源网络切片向核心网管理设备发送网络状态的信息，核心网管理设备接收源网络切片发送的网络状态的信息。若网络状态的信息满足第一预设条件，核心网管理设备控制已接入源网络切片的终端设备从源网络切片切换至目标网络切片，从而缓解源网络切片的负载压力，更好的服务源网络切片中未发生切片切换的终端设备，避免源网络切片发生网络瘫痪导致所有终端 设备都无法接入网络的情形。同时使得源网络切片中发生切片切换的终端设备可以接入到目标网络切片，保持网络连接，而不是直接断网。并且根据本发明实施例的方案，终端设备并不需要执行重新入网的全部操作，因为终端设备已经接入源网络切片，部分基于终端设备的入网过程可以省略，比如同步，随机接入等。不同网络切片间共享的核心网控制功能也可以共用，比如，用户认证，终端设备在不同网络切片间切换时并不需要重新做用户认证。
此外，在另一种实现方式中，源网络切片中的无线接入网设备的信令交互过程还可以由源网络切片中的核心网用户面设备执行。相应的，目标网络切片中的无线接入网设备的信令交互过程还可以由目标网络切片中的核心网用户面设备执行。具体的，针对步骤S301：源网络切片中的核心网用户面设备向核心网管理设备发送源网络切片的网络状态的信息。源网络切片中的核心网用户面设备的处理流程与图3所示实施例中源网络切片的无线接入网设备的处理流程类似，此处不再赘述。
图4为本专利申请提供的网络切片控制方法实施例二的信令交互图。该实施例可以应用在图2所示网络架构中。在本发明实施例中，源网络切片为终端设备已接入的网络切片，目标网络切片为终端设备切换至的网络切片。源网络切片和目标网络切片中都包括核心网控制面设备和核心网用户面设备。本发明实施例可以应用于场景一和场景二。如图4所示，本发明实施例提供的网络切片控制方法包括如下步骤：
S401：源网络切片的核心网控制面设备向核心网管理设备发送源网络切片的网络状态的信息。核心网管理设备接收源网络切片的核心网控制面设备发送的源网络切片的网络状态的信息。
S402：核心网管理设备判断源网络切片的网络状态是否满足第一预设条件，若是，执行步骤S403。
S403：核心网管理设备控制终端设备从源网络切片切换至目标网络切片。
具体的，核心网管理设备控制终端设备从源网络切片切换至目标网络切片这一步骤包括以下步骤S4031-S4038，各个步骤的详细描述如下：
S4031：核心网管理设备对终端设备进行目标网络切片接入授权。
S4032：核心网管理设备通过源网络切片的核心网控制面设备向终端设备发送第一切片控制请求。终端设备接收核心网管理设备通过源网络切片的核心网控制面设备发送的第一切片控制请求。
S4033：终端设备根据第一切片控制请求确定从源网络切片切换至目标网络切片。
S4034：核心网管理设备向目标网络切片的核心网控制面设备发送第二切片控制请求，目标网络切片的核心网控制面设备接收核心网管理设备发送的第二切片控制请求。
S4035：目标网络切片根据第二切片控制请求为终端设备建立承载。
S4036：当目标网络切片为终端设备建立了承载之后，目标网络切片的核心网控制面设备向核心网管理设备发送承载建立完成确认消息，核心网管理设备接收目标网络切片的核心网控制面设备发送的承载建立完成确认消息。
S4037：核心网管理设备向源网络切片的核心网控制面设备发送第三切片控制请求，源 网络切片的核心网控制面设备接收核心网管理设备发送的第三切片控制请求。
S4038：源网络切片根据第三切片控制请求拆除为终端设备建立的承载。
S4039：源网络切片的核心网控制面设备向核心网管理设备发送切片切换成功消息。核心网管理设备接收源网络切片的核心网控制面设备发送的切片切换成功消息。
可选的，步骤S4033之后，还可以包括步骤S40310：终端设备通过源网络切片的核心网控制面设备向核心网管理设备发送切片控制响应消息。核心网管理设备接收终端设备通过源网络切片的核心网控制面设备发送的切片控制响应消息。该切片控制响应消息用于指示终端设备接受切片切换操作。核心网管理设备接收到该切片控制响应消息后，才会触发执行步骤S4034。
可选的，若第一切片控制请求中还包括目标网络切片对应的配置指示信息，则在步骤S4033之后，还包括步骤S40311：终端设备根据目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。步骤S40310与S40311的执行顺序不进行限定。
本发明实施例中的步骤S401-S403以及S4031-S40311的实现过程与图3所示实施例一中的步骤S301-S303以及S3031-S30311的实现过程类似，此处不再赘述。不同点主要体现在：在本实施例中，源网络切片的网络状态信息包括源网络切片的核心网控制面设备的网络状态信息和/或源网络切片的核心网用户面设备的网络状态信息。针对步骤S4032，核心网管理设备将第一切片控制请求发送给源网络切片中的核心网控制面设备。源网络切片中的核心网控制面设备再将第一切片控制请求发送给无线接入网设备，无线接入网设备再将第一切片控制请求发送给终端设备。
此外，目标网络切片根据第二切片控制请求为终端设备建立承载具体包括：建立终端设备到接入网设备的控制面承载、接入网设备到核心网控制面设备的控制面承载以及核心网控制面设备到网络切片管理器的控制面承载，建立终端设备到接入网设备的用户面承载以及接入网设备到核心网用户面设备的用户面承载。源网络切片根据第三切片控制请求拆除为终端设备建立的承载具体包括：拆除终端设备到接入网设备的控制面承载、接入网设备到核心网控制面设备的控制面承载以及核心网控制面设备到网络切片管理器的控制面承载。拆除终端设备到接入网设备的用户面承载以及接入网设备到核心网用户面设备的用户面承载。
其它过程与实施例一类似，此处不再赘述。
本发明实施例提供的网络切片控制方法，通过终端设备接入源网络切片，源网络切片的核心网控制面设备向核心网管理设备发送网络状态的信息，核心网管理设备接收源网络切片的核心网控制面设备发送的网络状态的信息。若源网络切片的网络状态满足第一预设条件，核心网管理设备控制已接入源网络切片的终端设备从源网络切片切换至目标网络切片，从而减轻源网络切片的网络负载，实现对源网络切片的网络资源优化。
图5为本专利申请提供的网络切片控制方法实施例三的信令交互图，该实施例可以应用在图1所示网络架构中。在本发明实施例中，源网络切片为终端设备已接入的网络切片，目标网络切片为终端设备接入失败的网络切片。源网络切片和目标网络切片中都包括无线接入网设备和核心网用户面设备。本发明实施例可以应用于场景三：终端设备一开始接入到 源网络切片，一段时间后，为了满足终端设备进行其他类型的业务的需求，核心网管理设备发起终端设备同时接入到目标网络切片。如图5所示，本发明实施例提供的网络切片控制方法包括如下步骤：
S501：目标网络切片的无线接入网设备向核心网管理设备发送目标网络切片的网络状态的信息，核心网管理设备接收目标网络切片的无线接入网设备发送的目标网络切片的网络状态的信息。
其中，目标网络切片的网络状态的信息可以包括目标网络切片的无线接入网设备的网络状态信息，目标网络切片的网络状态信息可以包括目标网络切片中的核心网用户面设备的网络状态的信息，目标网络切片的网络状态信息还可以既包括目标网络切片中的无线接入网设备的网络状态的信息，又包括目标网络切片中的核心网用户面设备的网络状态的信息。网络状态的信息可以包括网络资源剩余值或负载值，例如，网络状态的信息为当前可用资源占网络切片总的可用资源的比值或者当前网络负载与网络最大容量的比值。网络状态的信息也可以包括网络状态，例如，网络资源充足或负载较小。
S502：核心网管理设备判断目标网络切片的网络状态是否满足第三预设条件，若是，执行步骤S503。
其中，该第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。例如，第五预设阈值为：90％。第六预设阈值为：10％。或者，第三预设条件还可以为：网络状态为网络资源充足或负载较小。
S503：核心网管理设备控制终端设备接入目标网络切片。
具体的，核心网管理设备控制终端设备接入目标网络切片这一步骤包括以下步骤S5031-S5036，各个步骤的详细描述如下：
S5031：核心网管理设备对终端设备进行目标网络切片接入授权。
具体地，核心网管理设备从预先记录的信息中获取终端设备的标识，举例来说，终端设备的标识可以是IMSI等。核心网管理设备根据终端设备的标识从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制，则核心网管理设备对终端设备进行目标网络切片接入授权。这里的签约信息可以包括终端设备在入网时签约的是否允许核心网管理设备发起切片接入的指示信息。可选的，签约信息中还可以包括用户的QoS信息，QoS信息中可以包括：时延、误报率、数据传输速率、带宽、服务优先级中的一个或多个。
核心网管理设备在根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制时，可以采用以下方式判断：若终端设备的签约信息中包括用于指示接受核心网管理设备发起的切片接入的指示信息，则核心网管理设备确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制。当然，核心网管理设备也可以采用其他方式进行判断，本实施例对此不做限制。
核心网管理设备在根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制时，还可以考虑终端设备的QoS信息，以QoS信息中的带宽为例进行说明，如果终端设备的签约信息中包括用于指示接受核心网管理设备发起的切片接入的指示信息， 并且签约信息中的带宽可以满足目标网络切片对应的业务，则核心网管理设备确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制。
S5032：核心网管理设备通过源网络切片的无线接入网设备向终端设备发送第四切片控制请求，终端设备接收核心网管理设备通过源网络切片的无线接入网设备发送的第四切片控制请求。
其中，第四切片控制请求中包括目标网络切片的标识和目标网络切片对应的配置指示信息。目标网络切片的标识用于终端设备确认新接入哪一个网络切片。
目标网络切片对应的配置指示信息可以是目标网络切片对应的协议配置信息，也可以是目标网络切片的标识，还可以是目标网络切片对应的业务类型。
可选的，第四切片控制请求中还可以携带请求类型的标识，用以指示第四切片控制请求是何种类型。在本发明实施例中，第四切片控制请求携带的请求类型标识为切片接入类型标识。
S5033：终端设备根据第四切片控制请求确定接入目标网络切片，并根据目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。
其中，目标网络切片对应的配置指示信息可以是目标网络切片对应的协议配置信息，包括需要配置哪些协议层，以及每个协议层需要配置哪些功能等。终端设备根据目标网络切片对应的协议配置信息进行相应配置。或者，目标网络切片对应的配置指示信息还可以是目标网络切片的标识。终端设备在本地保存不同网络切片的标识对应的协议配置信息，终端设备根据核心网管理设备发送的目标网络切片的标识，查找目标网络切片的标识对应的协议配置信息，并按照该协议配置信息进行相应配置。或者，目标网络切片对应的配置指示信息还可以是目标网络切片对应的业务类型。终端设备在本地保存不同业务类型网络切片的协议配置信息，终端设备根据核心网管理设备发送的目标网络切片的业务类型，查找目标网络切片的业务类型对应的协议配置信息，并按照该协议配置信息进行相应配置。
具体地，本发明实施例中的终端设备为具有协议配置功能的终端设备。
在终端设备根据目标网络切片对应的协议配置信息进行协议配置时，有以下两种实现方式：
第一种实现方式：终端设备上只存储有一种基本协议配置信息，终端设备在获取到目标网络切片对应的协议配置信息后，在该基本协议配置信息的基础上，进行配置，以确保自身的协议栈能与目标网络切片相匹配。
第二种实现方式：终端设备上存储有多个不同的协议配置信息，终端设备在获取到目标网络切片对应的协议配置信息后，选择与目标网络切片对应的协议配置信息相同的协议配置信息即可完成配置。
S5034：核心网管理设备向目标网络切片的无线接入网设备发送第五切片控制请求，目标网络切片的无线接入网设备接收核心网管理设备发送的第五切片控制请求。
其中，第五切片控制请求包括终端设备的标识，第五切片控制请求用于指示目标网络切片为终端设备建立承载。
可选的，第五切片控制请求中还可以携带请求类型的标识，用以指示第五切片控制请求是何种类型。在本发明实施例中，第五切片控制请求携带的请求类型标识为切片接入类 型标识。
S5035：目标网络切片根据第五切片控制请求为终端设备建立承载。
具体的，目标网络切片建立终端设备到无线接入网设备的控制面承载以及无线接入网设备到核心网管理设备的控制面承载，以及建立终端设备到无线接入网设备的用户面承载以及无线接入网设备到核心网用户面设备的用户面承载。
S5036：目标网络切片的无线接入网设备向核心网管理设备发送承载建立完成确认消息。核心网管理设备接收目标网络切片的无线接入网设备发送的承载建立完成确认消息。
需要说明的是，终端设备预先请求接入到目标网络切片中，但是由于目标网络切片的网络资源剩余不足或者负载较大，导致终端设备接入失败，核心网管理设备对接入失败的请求进行记录，记录的信息包括：终端设备的标识、终端设备请求接入的目标网络切片的标识等。为了能够及时获知目标网络切片的状态信息，目标网络切片周期性或事件性触发向核心网管理设备发送网络状态信息，核心网管理设备根据目标网络切片发送的网络状态信息获知目标网络切片的网络状态。如果在预设时间段内，目标网络切片的网络状态满足第三预设条件，核心网管理设备会触发将终端设备同时接入到目标网络切片中，如果超过了预设时间段，目标网络切片的网络状态还未满足第三预设条件，则核心网管理设备不会再触发将终端设备同时接入到目标网络切片中。其中，预设时间段例如：30分种。
可选的，步骤S5033之后，还可以包括步骤S5037：终端设备通过源网络切片的无线接入网设备向核心网管理设备发送切片控制响应消息。核心网管理设备接收终端设备通过源网络切片的无线接入网设备发送的切片控制响应消息。该切片控制响应消息用于指示终端设备接受切片接入操作。核心网管理设备接收到该切片控制响应消息后，才会触发执行步骤S5034。
需要说明的是，本实施例中的步骤S5032和步骤S5034的执行先后顺序不作具体限定。
本发明实施例与图3所示实施例一的区别在于：终端设备同时接入两个网络切片，终端设备在已接入源网络切片的前提下，同时接入目标网络切片，即允许终端设备同时进行两种类型的业务。
举例来说，终端设备已经接入一个eMBB网络切片进行视频业务，此时，如果终端设备需要进行连接智能电表读取电的度数的业务时，eMBB网络切片不支持读取电表度数的业务。终端设备发起接入至能运行读取智能电表上的电的度数的网络切片的接入请求，此时由于能运行读取智能电表上的电的度数的网络切片的负载较大、网络资源剩余值较少，无法满足再连接一个终端设备的要求。核心网管理设备拒绝终端设备的接入请求，当该能运行读取智能电表上的电的度数的网络切片有用户释放，资源充足时，核心网管理设备将之前请求接入该网络切片的终端设备接入至该网络切片，以满足终端设备运行读取智能电表上的电的度数的业务需求。
本发明实施例提供的网络切片控制方法，通过终端设备接入失败的目标网络切片向核心网管理设备发送网络状态的信息，核心网管理设备接收目标网络切片发送的网络状态的信息。若目标网络切片的网络状态的信息满足第三预设条件，核心网管理设备控制已接入源网络切片的终端设备同时接入目标网络切片，从而满足终端设备在运行源网络切片的业务时，可以运行目标网络切片对应的业务的需求。
此外，在另一种实现方式中，目标网络切片中的无线接入网设备的信令交互过程还可以由目标网络切片中的核心网用户面设备执行。具体的，针对步骤S501：目标网络切片中的核心网用户面设备向核心网管理设备发送目标网络切片的网络状态的信息。目标网络切片中的核心网用户面设备的处理流程与图5所示实施例中目标网络切片的无线接入网设备的处理流程类似，此处不再赘述。
图6为本专利申请提供的网络切片控制方法实施例四的信令交互图。该实施例可以应用在图2所示网络架构中。在本发明实施例中，源网络切片为终端设备已接入的网络切片，目标网络切片为终端设备接入失败的网络切片。源网络切片和目标网络切片中都包括核心网控制面设备和核心网用户面设备。本发明实施例可以应用于场景三中。如图6所示，本发明实施例提供的网络切片控制方法包括如下步骤：
S601：目标网络切片的核心网控制面设备向核心网管理设备发送目标网络切片的网络状态的信息，核心网管理设备接收目标网络切片的核心网控制面设备发送的目标网络切片的网络状态的信息。
S602：核心网管理设备判断目标网络切片的网络状态是否满足第三预设条件，若是，执行步骤S603。
S603：核心网管理设备控制终端设备接入目标网络切片。
具体的，核心网管理设备控制终端设备接入目标网络切片这一步骤包括以下步骤S6031-S6036，各个步骤的详细描述如下：
S6031：核心网管理设备对终端设备进行目标网络切片接入授权。
S6032：核心网管理设备通过源网络切片的核心网控制面设备向终端设备发送第四切片控制请求，终端设备接收核心网管理设备通过源网络切片的核心网控制面设备发送的第四切片控制请求。
S6033：终端设备根据第四切片控制请求确定接入目标网络切片，并根据目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。
S6034：核心网管理设备向目标网络切片的核心网控制面设备发送第五切片控制请求，目标网络切片的核心网控制面设备接收核心网管理设备发送的第五切片控制请求。
S6035：目标网络切片根据第五切片控制请求为终端设备建立承载。
S6036：目标网络切片的核心网控制面设备向核心网管理设备发送承载建立完成确认消息。核心网管理设备接收目标网络切片的核心网控制面设备发送的承载建立完成确认消息。
可选的，步骤S6033之后，还可以包括步骤S6037：终端设备通过源网络切片的核心网控制面设备向核心网管理设备发送切片控制响应消息。核心网管理设备接收终端设备通过源网络切片的核心网控制面设备发送的切片控制响应消息。该切片控制响应消息用于指示终端设备接受切片接入操作。核心网管理设备接收到该切片控制响应消息后，才会触发执行步骤S6034。
需要说明的是，本实施例中的步骤S6032和步骤S6034的执行先后顺序不作具体限定。
本发明实施例中的步骤S601-S603以及S6031-S6037的实现过程与图5所示实施例三中的步骤S501-S503以及S5031-S5037的实现过程类似，此处不再赘述。不同点主要体现 在：目标网络切片的网络状态的信息包括目标网络切片中的核心网控制面设备的网络状态信息和/或目标网络切片中的核心网用户面设备的网络状态的信息。针对步骤S6032，核心网管理设备将第四切片控制请求发送给源网络切片中的核心网控制面设备。源网络切片中的核心网控制面设备再将第四切片控制请求发送给无线接入网设备，无线接入网设备再将第四切片控制请求发送给终端设备。
本发明实施例提供的网络切片控制方法，通过终端设备接入源网络切片，终端设备接入失败的目标网络切片向核心网管理设备发送第一网络状态的信息，核心网管理设备接收目标网络切片发送的网络状态的信息。若网络状态的信息满足第三预设条件，核心网管理设备控制已接入源网络切片的终端设备同时接入目标网络切片，从而满足终端设备在运行源网络切片的业务时，可以运行目标网络切片对应的业务的需求。
需要说明的是，上述图3至图6是单独描述的四种实施例，在实际应用中，还可以将上述四种实施例中的任意两种或多种进行组合。例如，针对图1所示网络架构，终端设备已接入的源网络切片的无线接入网设备向核心网管理设备发送自身的网络状态的信息。核心网管理设备接收源网络切片的无线接入网设备发送的网络状态的信息。核心网管理设备判断源网络切片的网络状态满足第一预设条件还是满足第三预设条件，若满足第一预设条件，则核心网管理设备控制终端设备由源网络切片切换至目标网络切片。若满足第三预设条件，则核心网管理设备控制预先请求接入到源网络切片但接入失败的终端设备接入到源网络切片中。
图7为本专利申请提供的网络切片控制方法实施例五的信令交互图。对终端设备初始接入源网络切片的过程进行描述。该实施例可以应用在图1所示网络架构中。该过程包括步骤S701-S707，各个步骤的详细描述如下。
S701：终端设备通过源网络切片的无线接入网设备向核心网管理设备发送切片接入请求，核心网管理设备接收终端设备通过源网络切片的无线接入网设备发送的切片接入请求。
切片接入请求中包括源网络切片的标识。可选的，切片接入请求中还包括终端设备的标识。
S702：核心网管理设备根据切片接入请求对终端设备进行源网络切片的标识对应的源网络切片接入授权。
核心网管理设备从切片接入请求中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息及源网络切片的标识确定终端设备能接入源网络切片，则核心网管理设备对终端设备进行源网络切片的标识对应的源网络切片接入授权。通过接入授权提高终端设备接入源网络切片时的成功率。
核心网管理设备在根据签约信息及源网络切片的标识确定终端设备能接入源网络切片时，可以采用以下方式判断：若终端设备的签约信息中包括源网络切片对应的业务，则核心网管理设备确定终端设备能接入源网络切片。当然，核心网管理设备也可以采用其他方式进行判断，例如，签约信息的带宽可以满足源网络切片对应的业务时，则核心网管理设备确定终端设备能接入源网络切片。本实施例对此不做限制。
S703：核心网管理设备通过源网络切片的无线接入网设备向终端设备发送源网络切片对应的配置指示信息。终端设备接收核心网管理设备通过源网络切片的无线接入网设备发送的源网络切片对应的配置指示信息。
源网络切片对应的配置指示信息可以是源网络切片对应的协议配置信息，也可以是源网络切片的标识，还可以是源网络切片对应的业务类型。
S704：终端设备根据源网络切片对应的配置指示信息进行协议配置以接入源网络切片。
其中，源网络切片对应的配置指示信息可以是与源网络切片相关的协议配置信息，包括需要配置哪些协议层，以及每个协议层需要配置哪些功能等。终端设备根据该协议配置信息进行相应协议配置。或者，源网络切片对应的配置指示信息还可以是源网络切片的标识。终端设备在本地保存不同网络切片的标识对应的协议配置信息，终端设备根据核心网管理设备发送的源网络切片的标识，查找源网络切片的标识对应的协议配置信息，并按照该协议配置信息进行相应协议配置。或者，源网络切片对应的配置指示信息还可以是源网络切片对应的业务类型。终端设备在本地保存不同业务类型网络切片对应的协议配置信息，终端设备根据核心网管理设备发送的源网络切片的业务类型，查找源网络切片的业务类型对应的协议配置信息，并按照该协议配置信息进行相应协议配置。需要说明的是，不同的网络切片所承载的业务类型不同，需要采用不同的协议配置方式。
S705：核心网管理设备向源网络切片的无线接入网设备发送第六切片控制请求，源网络切片的无线接入网设备接收核心网管理设备发送的第六切片控制请求。
该第六切片控制请求包括终端设备的标识。可选的，第六切片控制请求中还可以携带请求类型的标识，用以指示第六切片控制请求是何种类型。在本发明实施例中，第六切片控制请求携带的请求类型标识为接入类型标识。
S706：源网络切片根据该第六切片控制请求为终端设备建立承载。
具体的，源网络切片建立终端设备到源网络切片的无线接入网设备的控制面承载以及建立源网络切片的无线接入网设备到核心网管理设备的控制面承载，以及建立终端设备到源网络切片的无线接入网设备的用户面承载以及建立源网络切片的无线接入网设备到源网络切片的核心网用户面设备的用户面承载。
S707：源网络切片在为终端设备建立了承载后，源网络切片的无线接入网设备向核心网管理设备发送承载建立完成确认消息，核心网管理设备接收源网络切片的无线接入网设备发送的承载建立完成确认消息。
该承载建立完成确认消息用于指示源网络切片已为终端设备建立了承载，该承载建立完成确认消息还可以携带终端设备的标识。至此，终端设备成功接入源网络切片。
需要说明的是，步骤S703和S705的执行顺序不作具体限定。
对于图2所示网络架构，终端设备初始接入源网络切片的过程与图7所示实施例的过程大致相同，不同点主要体现在：源网络切片对应的无线接入网设备的相关操作，改由源网络切片的核心网控制面设备完成。例如，针对不是S701，终端设备通过源网络切片的核心网控制面设备向核心网管理设备发送切片接入请求，核心网管理设备接收终端设备通过源网络切片的核心网控制面设备发送的切片接入请求。具体的，终端设备向无线接入网设备发送切片接入请求，无线接入网设备接收终端设备发送的切片接入请求，将切片接入请求 发送给源网络切片的核心网控制面设备，源网络切片的核心网控制面设备再将切片接入请求发送给核心网管理设备。核心网管理设备接收源网络切片的核心网控制面设备发送的切片接入请求。
图8为本专利申请提供的网络切片处理方法实施例六的信令交互图。如图8所示，本发明实施例提供的网络切片控制方法在图3所示实施例一的基础上，针对核心网管理设备中的切片管理器与协议配置设备分开设置的情况进行详细说明：
S801：切片管理器判断源网络切片的网络状态是否满足第一预设条件，若是，执行步骤S802。
步骤S801的实现原理与步骤S302类似，此处不再赘述。
S802：切片管理器向归属签约用户服务器/策略与计费规则功能设备发送签约信息获取请求。归属签约用户服务器/策略与计费规则功能设备接收切片管理器发送的签约信息获取请求。
其中，签约信息获取请求中包括终端设备的标识。签约信息获取请求用于指示获取终端设备的签约信息。
S803：归属签约用户服务器/策略与计费规则功能设备根据签约信息获取请求向切片管理器发送终端设备的标识对应的签约信息。切片管理器接收归属签约用户服务器/策略与计费规则功能设备发送的终端设备的签约信息。
S804：若切片管理器根据签约信息确定终端设备允许切片管理器对终端设备进行网络切片切换控制，则切片管理器对终端设备进行目标网络切片接入授权。
这里，切片管理器对终端设备进行目标网络切片接入授权的执行过程可以参见步骤S3031中的描述，此处不再赘述。
S805：切片管理器向协议配置设备发送协议配置信息获取请求。协议配置设备接收切片管理器发送的协议配置信息获取请求。
其中，该协议配置信息获取请求中携带目标网络切片的标识。该协议配置信息获取请求用于请求获取目标网络切片的协议配置信息。
S806：协议配置设备根据协议配置信息获取请求查找目标网络切片对应的协议配置信息。
具体地，该协议配置信息包括终端设备需要采用的与目标网络切片对应的协议栈配置信息。
协议配置设备中存储有网络切片的标识及与网络切片的标识对应的协议配置信息。协议配置设备根据协议配置信息获取请求中的目标网络切片的标识，确定与目标网络切片对应的协议配置信息。
S807：协议配置设备将协议配置信息发送给切片管理器，切片管理器接收协议配置设备发送的协议配置信息。
之后，切片管理器将协议配置信息发送给终端设备，终端设备接收协议配置信息。具体地，切片管理器可以通过移动性管理设备、源网络切片的无线接入网设备将该协议配置信息发送给终端设备。终端设备根据协议配置信息进行协议配置以接入目标网络切片。
本发明实施例提供的网络切片控制方法与图3所示的网络切片控制方法的区别在于：本发明实施例中的核心网管理设备中的切片管理器和协议配置设备分开设置，在确定目标网络切片对应的协议配置信息时，如果切片管理器对终端设备进行了目标网络切片接入授权，则切片管理器向协议配置设备发送协议配置信息获取请求，协议配置设备根据协议配置信息获取请求确定目标网络切片的协议配置信息，切片管理器接收协议配置设备发送的协议配置信息并将其发送给终端设备。而图3提供的发明实施例中的核心网管理设备中切片管理器和协议配置设备集成在一起，可以直接确定目标网络切片对应的协议配置信息。
本发明实施例提供的网络切片控制方法中，通过终端设备接入源网络切片，源网络切片向切片管理器发送网络状态的信息，切片管理器接收源网络切片发送的网络状态的信息。若源网络切片的网络状态满足第一预设条件，切片管理器对终端设备进行目标网络切片的接入授权，切片管理器向协议配置设备发送协议配置信息获取请求，协议配置设备根据协议配置信息获取请求确定目标网络切片对应的协议配置信息，协议配置设备向切片管理器发送目标网络切片对应的协议配置信息，切片管理器接收目标网络切片对应的协议配置信息。切片管理器向终端设备发送目标网络切片对应的协议配置信息，终端设备根据该协议配置信息进行协议配置以接入目标网络切片。切片管理器再通知目标网络切片为终端设备建立承载。之后，切片管理器再通知源网络切片拆除为终端设备建立的承载，从而减轻源网络切片的网络负载，实现对源网络切片的资源优化。
需要说明的是，上述图4至图6所示的实施例均为核心网管理设备中的切片管理器和协议配置设备集成在一起设置为例进行的说明，同样的，图4至图6所示实施例中的核心网管理设备中的切片管理器和协议配置设备也可以分开设置，且分开设置时切片管理器和协议配置设备之间的交互过程可以参照图8实施例，此处不再赘述。
为了便于更好地实施本发明实施例的上述网络切片控制方法，本发明实施例还提供了用于实现实施上述方法的相关设备。
参见图9，是本专利申请提供的一种核心网管理设备的结构示意图。如图9所示，核心网管理设备90包括处理器901、存储器902和收发器903。其中处理器901、存储器902和收发器903可以通过总线或其他方式连接。
可选的，核心网管理设备90还可以包括网络接口904和电源模块905。
其中，处理器901可以是数字信号处理(英文：Digital Signal Processing，简称：DSP)芯片。
存储器902用于存储指令，具体实现中，存储器902可以采用只读存储器(英文：Read-Only Memory，简称：ROM)或随机存取存贮器(英文：Random Access Memory，简称：RAM)，在本发明实施例中，存储器902用于存储网络切片控制程序代码，以及上述实施例中所描述的第一预设阈值、第二预设阈值、第三预设阈值、第四预设阈值、第五预设阈值、第六预设阈值等。
收发器903用于收发信号。
网络接口904用于核心网管理设备90与其他设备进行数据通信。该网络接口904可以为有线接口或无线接口。
电源模块905用于为核心网管理设备90的各个模块供电。
在本申请的第一种方案中，处理器901用于执行如下操作：
通过收发器903接收源网络切片发送的网络状态的信息，源网络切片为终端设备已接入的网络切片。若源网络切片的网络状态满足第一预设条件，处理器901控制终端设备从源网络切片切换至目标网络切片。
具体的，处理器901控制终端设备从源网络切片切换至目标网络切片，包括：处理器901对终端设备进行目标网络切片接入授权。处理器901通过收发器903向终端设备发送第一切片控制请求。第一切片控制请求包括目标网络切片的标识，目标网络切片的标识用于指示终端设备根据目标网络切片的标识确定从源网络切片切换至目标网络切片。
可选的，第一切片控制请求还包括目标网络切片对应的配置指示信息，配置指示信息用于指示终端设备根据配置指示信息进行协议配置以接入目标网络切片。
具体的，处理器901对终端设备进行目标网络切片接入授权之后，处理器901还用于：通过收发器903向目标网络切片发送包括终端设备的标识的第二切片控制请求。第二切片控制请求用于指示目标网络切片为终端设备的标识对应的终端设备建立承载。当处理器901确定目标网络切片已为终端设备建立承载时，通过收发器903向源网络切片发送包括终端设备的标识的第三切片控制请求。第三切片控制请求用于指示源网络切片拆除为终端设备的标识对应的终端设备建立的承载。
可选的，处理器901对终端设备进行目标网络切片接入授权，包括：处理器901从已接入源网络切片的终端设备标识集合中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若处理器901根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则处理器901对终端设备进行默认网络切片接入授权。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备的标识。处理器901对终端设备进行目标网络切片接入授权，包括：处理器901从网络状态的信息中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若处理器901根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则处理器901对终端设备进行目标网络切片接入授权。
可选的，源网络切片发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应 的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
具体的，处理器901通过收发器903接收源网络切片发送的网络状态的信息，具体为：处理器901通过收发器903接收无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，无线接入网设备或核心网用户面设备或核心网控制面设备为源网络切片中的设备。
需要说明的是，本发明实施例所描述的核心网管理设备90中各功能设备的功能可参见上述图3或图4所示实施例中对应核心网管理设备的相关描述，此处不再赘述。
在本申请的第二种方案中，处理器901用于调用存储器902中存储的程序和数据，执行如下操作：通过收发器903接收目标网络切片发送的网络状态的信息，目标网络切片为终端设备接入失败的网络切片，终端设备已接入源网络切片。若目标网络切片的网络状态满足第三预设条件，处理器901控制终端设备接入目标网络切片。
具体的，处理器901控制终端设备接入目标网络切片，包括：处理器901对终端设备进行目标网络切片接入授权。处理器901通过收发器903向终端设备发送第四切片控制请求，第四切片控制请求中包括目标网络切片对应的配置指示信息。目标网络切片对应的配置指示信息用于指示终端设备根据该配置指示信息进行协议配置以接入目标网络切片。
具体的，处理器901对终端设备进行目标网络切片接入授权之后，处理器901还用于：通过收发器903向目标网络切片发送包括终端设备的标识的第五切片控制请求。第五切片控制请求用于指示目标网络切片为终端设备的标识对应的终端设备建立承载。
可选的，处理器901对终端设备进行目标网络切片接入授权，包括：处理器901从预先记录的终端设备标识集合中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若处理器901根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制，则处理器901对终端设备进行目标网络切片接入授权。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
具体的，处理器901通过收发器903接收目标网络切片发送的网络状态的信息，具体为：处理器901通过收发器903接收无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，无线接入网设备或核心网用户面设备或核心网控制面设备为目标网络切片中的设备。
需要说明的是，本发明实施例所描述的核心网管理设备90中各功能模块的功能可参见上述图5或图6所示实施例中对应核心网管理设备的相关描述，此处不再赘述。
参见图10，是本专利申请提供的一种无线接入网设备的结构示意图。如图10所示，无线接入网设备100包括处理器1001、存储器1002和收发器1003。其中处理器1001、存储器1002和收发器1003可以通过总线或其他方式连接。
可选的，网络切片100还可以包括网络接口1004和电源模块1005。
其中，处理器1001可以是DSP芯片。
存储器1002用于存储指令，具体实现中，存储器1002可以采用ROM或RAM，在本发明实施例中，存储器1002用于存储网络切片控制程序代码。
收发器1003用于收发信号。
网络接口1004用于无线接入网设备100与其他设备进行数据通信。该网络接口1004可以为有线接口或无线接口。
电源模块1005用于为网络切片100的各个模块供电。
在本申请的第一种方案中，无线接入网设备100为终端设备已接入的源网络切片中的无线接入网设备。处理器1001用于执行如下操作：
通过收发器1003向核心网管理设备发送源网络切片的网络状态的信息。若源网络切片的网络状态满足第一预设条件，处理器1001通过收发器1003接收核心网管理设备发送的第二切片控制请求。第二切片控制请求中包括终端设备的标识。处理器1001根据第二切片控制请求拆除为终端设备建立的承载。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备的标识，终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，处理器1001通过收发器1003发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
需要说明的是，本发明实施例所描述的无线接入网设备100中各功能模块的功能可参见上述图3所示实施例中对应无线接入网设备的相关描述，此处不再赘述。
在本申请的第二种方案中，无线接入网设备100为终端设备接入失败的目标网络切片中的无线接入网设备，终端设备已接入源网络切片。处理器1001用于调用存储器1002中存储的程序和数据，执行如下操作：通过收发器1003向核心网管理设备发送目标网络切片的网络状态的信息。若目标网络切片的网络状态满足第三预设条件，处理器1001通过收发器1003接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。处理器1001根据第五切片控制请求为终端设备建立承载。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
需要说明的是，本发明实施例所描述的无线接入网设备100中各功能模块的功能可参见上述图5所示实施例中对应无线接入网设备的相关描述，此处不再赘述。
参见图11，是本专利申请提供的一种核心网用户面设备的结构示意图。如图11所示，核心网用户面设备110包括处理器1101、存储器1102和收发器1103。其中处理器1101、存储器1102和收发器1103可以通过总线或其他方式连接。
可选的，网络切片110还可以包括网络接口1104和电源模块1105。
其中，处理器1101可以是DSP芯片。
存储器1102用于存储指令，具体实现中，存储器1102可以采用ROM或RAM，在本发明实施例中，存储器1102用于存储网络切片控制程序代码。
收发器1103用于收发信号。
网络接口1104用于核心网用户面设备110与其他设备进行数据通信。该网络接口1104可以为有线接口或无线接口。
电源模块1105用于为网络切片110的各个模块供电。
在本申请的第一种方案中，核心网用户面设备110为终端设备已接入的源网络切片中的核心网用户面设备。处理器1101用于执行如下操作：
通过收发器1103向核心网管理设备发送源网络切片的网络状态的信息。若源网络切片的网络状态满足第一预设条件，处理器1101通过收发器1103接收核心网管理设备发送的第二切片控制请求。第二切片控制请求中包括终端设备的标识。处理器1101根据第二切片控制请求拆除为终端设备建立的承载。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备的标识，终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若核心网管理设备根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，处理器1101通过收发器1103发送的网络状态的信息中包括终端设备对源网络切片对应的源核心网用户面设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标核心网用户面设备发送的下行信号进行测量得到的第二测量值以及目标核心网用户面设备的标识。目标核心网用户面设备的标识用于核心网管理设备确定目标核心网用户面设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标核心网用户面设备对应的业务类型与源核心网用户面设备对应的业务类型不一致。
需要说明的是，本发明实施例所描述的核心网用户面设备110中各功能模块的功能可参见上述图3所示实施例中对应核心网用户面设备的相关描述，此处不再赘述。
在本申请的第二种方案中，核心网用户面设备110为终端设备接入失败的目标网络切片中的核心网用户面设备，终端设备已接入源网络切片。处理器1101用于调用存储器1102中存储的程序和数据，执行如下操作：通过收发器1103向核心网管理设备发送目标网络切片的网络状态的信息。若目标网络切片的网络状态满足第三预设条件，处理器1101通过收发器1103接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。处理器1101根据第五切片控制请求为终端设备建立承载。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
需要说明的是，本发明实施例所描述的核心网用户面设备110中各功能模块的功能可参见上述图5所示实施例中对应核心网用户面设备的相关描述，此处不再赘述。
参见图12，是本专利申请提供的一种核心网控制面设备的结构示意图。如图12所示，核心网控制面设备120包括处理器1201、存储器1202和收发器1203。其中处理器1201、存储器1202和收发器1203可以通过总线或其他方式连接。
可选的，网络切片120还可以包括网络接口1204和电源模块1205。
其中，处理器1201可以是DSP芯片。
存储器1202用于存储指令，具体实现中，存储器1202可以采用ROM或RAM，在本发明实施例中，存储器1202用于存储网络切片控制程序代码。
收发器1203用于收发信号。
网络接口1204用于核心网控制面设备120与其他设备进行数据通信。该网络接口1204可以为有线接口或无线接口。
电源模块1205用于为网络切片120的各个模块供电。
在本申请的第一种方案中，核心网控制面设备120为终端设备已接入的源网络切片中的核心网控制面设备。处理器1201用于执行如下操作：
通过收发器1203向核心网管理设备发送源网络切片的网络状态的信息。若源网络切片的网络状态满足第一预设条件，处理器1201通过收发器1203接收核心网管理设备发送的第二切片控制请求。第二切片控制请求中包括终端设备的标识。处理器1201根据第二切片控制请求拆除为终端设备建立的承载。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备的标识，终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若处理器1201根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则处理器1201对终端设备进行目标网络切片接入授权。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，处理器1201通过收发器1203发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
需要说明的是，本发明实施例所描述的核心网控制面设备120中各功能模块的功能可参见上述图4所示实施例中对应核心网控制面设备的相关描述，此处不再赘述。
在本申请的第二种方案中，核心网控制面设备120为终端设备接入失败的目标网络切片中的核心网控制面设备，终端设备已接入源网络切片。处理器1201用于调用存储器1202中存储的程序和数据，执行如下操作：通过收发器1203向核心网管理设备发送目标网络切片的网络状态的信息。若目标网络切片的网络状态满足第三预设条件，处理器1201通过收发器1203接收核心网管理设备发送的第五切片控制请求，第五切片控制请求中包括终端设备的标识。处理器1201根据第五切片控制请求为终端设备建立承载。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
需要说明的是，本发明实施例所描述的核心网控制面设备120中各功能模块的功能可参见上述图6所示实施例中对应核心网控制面设备的相关描述，此处不再赘述。
参见图13，是本专利申请提供的一种终端设备的结构示意图。如图13所示，终端设备130包括处理器1301、存储器1302和收发器1303，其中处理器1301、存储器1302和收发器1303可以通过总线或其他方式连接。
可选的，终端设备130还可以包括网络接口1304和电源模块1305。
其中，处理器1301可以是DSP芯片。
存储器1302用于存储指令，具体实现中，存储器1302可以采用ROM或RAM，在本发明实施例中，存储器1302用于存储网络切片控制程序代码。
收发器1303用于收发信号。
网络接口1304用于终端设备130与其他设备进行数据通信。该网络接口1304可以为有线接口或无线接口。
电源模块1305用于为终端设备130的各个模块供电。
在本申请的第一种方案中，处理器1301用于执行如下操作：
通过收发器1303接收核心网管理设备发送的第一切片控制请求，终端设备已接入源网络切片，该第一切片控制请求为核心网管理设备根据源网络切片发送的网络状态的信息判断出源网络切片的网络状态满足第一预设条件时发送给终端设备的。处理器1301根据第一切片控制请求确定从源网络切片切换至目标网络切片。
可选的，第一切片控制请求还包括目标网络切片对应的配置指示信息。处理器1301通过收发器1303接收核心网管理设备发送的第一切片控制请求之后，处理器1301还用于：根据配置指示信息进行协议配置以接入目标网络切片。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
需要说明的是，本发明实施例所描述的终端设备130中各功能模块的功能可参见上述图3或图4所示实施例中对应终端设备的相关描述，此处不再赘述。
在本申请的第二种方案中，处理器1301用于执行如下操作：
通过收发器1303接收核心网管理设备发送的第四切片控制请求，终端设备已接入源网络切片。第四切片控制请求为核心网管理设备根据目标网络切片发送的网络状态的信息判断出源网络切片的网络状态满足第三预设条件时发送给终端设备的。处理器1301根据目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
需要说明的是，本发明实施例所描述的终端设备130中各功能模块的功能可参见上述图5或图6所示实施例中对应终端设备的相关描述，此处不再赘述。
请参见图14，是本专利申请提供的另一种核心网管理设备的结构示意图。如图14所示，核心网管理设备140包括：接收模块1401和控制模块1402。
在本申请的第一种方案中，接收模块1401，用于接收源网络切片发送的网络状态的信息，源网络切片为终端设备已接入的网络切片。
控制模块1402，用于若源网络切片的网络状态满足第一预设条件，控制终端设备从源网络切片切换至目标网络切片。
具体的，控制模块1402包括：
授权模块，用于对终端设备进行目标网络切片接入授权。
第一发送模块，用于向终端设备发送第一切片控制请求。第一切片控制请求包括目标网络切片的标识，目标网络切片的标识用于指示终端设备根据目标网络切片的标识确定从源网络切片切换至目标网络切片。
可选的，第一切片控制请求还包括目标网络切片对应的配置指示信息，配置指示信息用于指示终端设备根据配置指示信息进行协议配置以接入目标网络切片。
具体的，控制模块1402还包括：
第二发送模块，用于向目标网络切片发送包括终端设备的标识的第二切片控制请求。 第二切片控制请求用于指示目标网络切片为终端设备的标识对应的终端设备建立承载。
第三发送模块，用于当确定目标网络切片已为终端设备建立承载时，向源网络切片发送包括终端设备的标识的第三切片控制请求。第三切片控制请求用于指示源网络切片拆除为终端设备的标识对应的终端设备建立的承载。
可选的，授权模块具体用于：从已接入源网络切片的终端设备标识集合中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则授权模块对终端设备进行默认网络切片接入授权。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。这里，默认网络切片是终端设备签约时确定的能满足终端设备最基本业务需求的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备的标识。授权模块具体用于：从网络状态的信息中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则对终端设备进行目标网络切片接入授权。
可选的，源网络切片发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
接收模块1401具体用于：接收无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，无线接入网设备或核心网用户面设备或核心网控制面设备为源网络切片中的设备。
需要说明的是，本发明实施例中所描述的核心网管理设备140中各功能模块的功能可参见上述图3或图4所示实施例中对应核心网管理设备的相关描述，此处不再赘述。
在本申请的第二种方案中，接收模块1401，用于接收目标网络切片发送的网络状态的信息，目标网络切片为终端设备接入失败的网络切片，终端设备已接入源网络切片。
控制模块1402，用于若目标网络切片的网络状态满足第三预设条件，控制终端设备接入目标网络切片。
控制模块1402包括：
授权模块，用于对终端设备进行目标网络切片接入授权。
第一发送模块，用于向终端设备发送第四切片控制请求，第四切片控制请求中包括目 标网络切片对应的配置指示信息。目标网络切片对应的配置指示信息用于指示终端设备根据该配置指示信息进行协议配置以接入目标网络切片。
控制模块1402还包括：
第二发送模块，用于向目标网络切片发送包括终端设备的标识的第五切片控制请求。第五切片控制请求用于指示目标网络切片为终端设备的标识对应的终端设备建立承载。
可选的，授权模块具体用于：从预先记录的终端设备标识集合中获取终端设备的标识，并根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息。若根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片接入控制，则对终端设备进行目标网络切片接入授权。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
接收模块1401具体用于：接收无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，无线接入网设备或核心网用户面设备或核心网控制面设备为目标网络切片中的设备。
需要说明的是，本发明实施例中所描述的核心网管理设备140中各功能模块的功能可参见上述图5或图6所示实施例中对应核心网管理设备的相关描述，此处不再赘述。
请参见图15，是本专利申请提供的另一种无线接入网设备的结构示意图。如图15所示，无线接入网设备150包括：发送模块1501、接收模块1502和处理模块1503。
在本申请的第一种方案中，发送模块1501，用于向核心网管理设备发送源网络切片的网络状态的信息。
接收模块1502，用于若源网络切片的网络状态满足第一预设条件，接收核心网管理设备发送的第二切片控制请求。第二切片控制请求中包括终端设备的标识。
处理模块1503，用于根据第二切片控制请求拆除为终端设备建立的承载。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备的标识，终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，发送模块1501发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对 应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
需要说明的是，本发明实施例所描述的无线接入网设备150中各功能模块的功能可参见上述图3所示实施例中对应无线接入网设备的相关描述，此处不再赘述。
在本申请的第二种方案中，发送模块1501，用于向核心网管理设备发送目标网络切片的网络状态的信息。
接收模块1502，用于若目标网络切片的网络状态满足第三预设条件，接收核心网管理设备发送的第五切片控制请求。第五切片控制请求中包括终端设备的标识。
处理模块1503，用于根据第五切片控制请求为终端设备建立承载。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
需要说明的是，本发明实施例所描述的无线接入网设备150中各功能模块的功能可参见上述图5所示实施例中对应无线接入网设备的相关描述，此处不再赘述。
请参见图16，是本专利申请提供的另一种核心网用户面设备的结构示意图。如图16所示，核心网用户面设备160包括：发送模块1601、接收模块1602和处理模块1603。
在本申请的第一种方案中，发送模块1601，用于向核心网管理设备发送源网络切片的网络状态的信息。
接收模块1602，用于若源网络切片的网络状态满足第一预设条件，接收核心网管理设备发送的第二切片控制请求。第二切片控制请求中包括终端设备的标识。
处理模块1603，用于根据第二切片控制请求拆除为终端设备建立的承载。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备的标识，终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，发送模块1601发送的网络状态的信息中包括终端设备对源网络切片对应的源核心网用户面设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标核心网用户面设备发送的下行信号进行测量得到的第二测量值以及目标核心网用户面设备的标识。目标核心网用户面设备的标识用于核心网管理设备确定目标核心网用户面设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标核心网用户面设备对应的业务类型与源核心网用户面设备对应的业务类型不一致。
需要说明的是，本发明实施例所描述的核心网用户面设备160中各功能模块的功能可参 见上述图3所示实施例中对应核心网用户面设备的相关描述，此处不再赘述。
在本申请的第二种方案中，发送模块1601，用于向核心网管理设备发送目标网络切片的网络状态的信息。
接收模块1602，用于若目标网络切片的网络状态满足第三预设条件，接收核心网管理设备发送的第五切片控制请求。第五切片控制请求中包括终端设备的标识。
处理模块1603，用于根据第五切片控制请求为终端设备建立承载。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
需要说明的是，本发明实施例所描述的核心网用户面设备160中各功能模块的功能可参见上述图5所示实施例中对应核心网用户面设备的相关描述，此处不再赘述。
请参见图17，是本专利申请提供的另一种核心网控制面设备的结构示意图。如图17所示，核心网控制面设备170包括：发送模块1701、接收模块1702和处理模块1703。
在本申请的第一种方案中，发送模块1701，用于向核心网管理设备发送源网络切片的网络状态的信息。
接收模块1702，用于若源网络切片的网络状态满足第一预设条件，接收核心网管理设备发送的第二切片控制请求。第二切片控制请求中包括终端设备的标识。
处理模块1703，用于根据第二切片控制请求拆除为终端设备建立的承载。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备的标识，终端设备的标识用于指示核心网管理设备根据终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与终端设备的标识对应的签约信息，若根据签约信息确定终端设备允许核心网管理设备对终端设备进行网络切片切换控制，则核心网管理设备对终端设备进行目标网络切片接入授权。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，发送模块1701发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
需要说明的是，本发明实施例所描述的核心网控制面设备170中各功能模块的功能可参见上述图4所示实施例中对应核心网控制面设备的相关描述，此处不再赘述。
在本申请的第二种方案中，发送模块1701，用于向核心网管理设备发送目标网络切片的网络状态的信息。
接收模块1702，用于若目标网络切片的网络状态满足第三预设条件，接收核心网管理设备发送的第五切片控制请求。第五切片控制请求中包括终端设备的标识。
处理模块1703，用于根据第五切片控制请求为终端设备建立承载。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
需要说明的是，本发明实施例所描述的核心网控制面设备170中各功能模块的功能可参见上述图6所示实施例中对应核心网控制面设备的相关描述，此处不再赘述。
请参见图18，是本专利申请提供的另一种终端设备的结构示意图。如图18所示，终端设备180包括：接收模块1801和处理模块1802。
在本申请的第一种方案中，接收模块1801，用于接收核心网管理设备发送的第一切片控制请求，终端设备已接入源网络切片，该第一切片控制请求为核心网管理设备根据源网络切片发送的网络状态的信息判断出源网络切片的网络状态满足第一预设条件时发送给终端设备的。
处理模块1802，用于根据第一切片控制请求确定从源网络切片切换至目标网络切片。
可选的，终端设备180还包括：配置模块，用于根据配置指示信息进行协议配置以接入目标网络切片。
可选的，第一预设条件包括：网络资源剩余值小于或等于第一预设阈值或负载值大于或等于第二预设阈值。
可选的，目标网络切片为默认网络切片或满足第二预设条件的网络切片。
可选的，第二预设条件包括：网络资源剩余值大于或等于第三预设阈值或负载值小于或等于第四预设阈值。
可选的，源网络切片发送的网络状态的信息中包括终端设备对源网络切片对应的源无线接入网设备发送的下行信号进行测量得到的第一测量值、终端设备对目标网络切片对应的目标无线接入网设备发送的下行信号进行测量得到的第二测量值以及目标无线接入网设备的标识。目标无线接入网设备的标识用于核心网管理设备确定目标无线接入网设备对应的业务类型。第一预设条件包括：第二测量值大于第一测量值且目标无线接入网设备对应的业务类型与源无线接入网设备对应的业务类型不一致。
需要说明的是，本发明实施例中所描述的终端设备180中各功能模块的功能可参见上述图3或图4所示实施例中对应终端设备的相关描述，此处不再赘述。
在本申请的第二种方案中，接收模块1801，用于接收核心网管理设备发送的第四切片控制请求，终端设备已接入源网络切片。第四切片控制请求为核心网管理设备根据目标网络切片发送的网络状态的信息判断出目标网络切片的网络状态满足第三预设条件时发送给终端设备的。
处理模块1802，用于根据目标网络切片对应的配置指示信息进行协议配置以接入目标网络切片。
可选的，第三预设条件包括：网络资源剩余值大于或等于第五预设阈值或负载值小于或等于第六预设阈值。
需要说明的是，本发明实施例中所描述的终端设备180中各功能模块的功能可参见上述图5或图6所示实施例中对应终端设备的相关描述，此处不再赘述。
本发明实施例的说明书和权利要求书及附图中的术语“第一”、“第二”、“第三”“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明实施例的技术方案，而非对其限制；尽管参照前述各实施例对本发明实施例进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的范围。

Claims (22)

  1. 一种网络切片控制方法，其特征在于，包括：
    核心网管理设备接收源网络切片发送的网络状态的信息，所述源网络切片为终端设备已接入的网络切片；
    若所述网络状态满足第一预设条件，所述核心网管理设备控制所述终端设备从所述源网络切片切换至目标网络切片。
  2. 根据权利要求1所述的方法，其特征在于，所述核心网管理设备控制所述终端设备从所述源网络切片切换至目标网络切片，包括：
    所述核心网管理设备对所述终端设备进行所述目标网络切片接入授权；
    所述核心网管理设备向所述终端设备发送第一切片控制请求；所述第一切片控制请求包括所述目标网络切片的标识，所述目标网络切片的标识用于指示所述终端设备根据所述目标网络切片的标识确定从所述源网络切片切换至所述目标网络切片。
  3. 根据权利要求2所述的方法，其特征在于，所述第一切片控制请求还包括所述目标网络切片对应的配置指示信息，所述配置指示信息用于指示所述终端设备根据所述配置指示信息进行协议配置以接入所述目标网络切片。
  4. 根据权利要求2或3所述的方法，其特征在于，所述核心网管理设备对所述终端设备进行所述目标网络切片接入授权之后，还包括：
    所述核心网管理设备向所述目标网络切片发送第二切片控制请求；所述第二切片控制请求包括所述终端设备的标识，所述第二切片控制请求用于指示所述目标网络切片为所述终端设备的标识对应的终端设备建立承载；
    当所述核心网管理设备确定所述目标网络切片已为所述终端设备建立承载时，所述核心网管理设备向所述源网络切片发送第三切片控制请求；所述第三切片控制请求包括所述终端设备的标识，所述第三切片控制请求用于指示所述源网络切片拆除为所述终端设备的标识对应的终端设备建立的承载。
  5. 根据权利要求2至4任一项所述的方法，其特征在于，所述核心网管理设备对所述终端设备进行所述目标网络切片接入授权，包括：
    所述核心网管理设备从已接入所述源网络切片的终端设备标识集合中获取所述终端设备的标识，并根据所述终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与所述终端设备的标识对应的签约信息；
    若所述核心网管理设备根据所述签约信息确定所述终端设备允许所述核心网管理设备对所述终端设备进行网络切片切换控制，则所述核心网管理设备对所述终端设备进行所述目标网络切片接入授权。
  6. 根据权利要求2至4任一项所述的方法，其特征在于，所述网络状态的信息中包括所述终端设备的标识；所述核心网管理设备对所述终端设备进行所述目标网络切片接入授权，包括：
    所述核心网管理设备从所述网络状态的信息中获取所述终端设备的标识，并根据所述终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与所述终端设备的标识对应的签约信息；
    若所述核心网管理设备根据所述签约信息确定所述终端设备允许所述核心网管理设备对所述终端设备进行网络切片切换控制，则所述核心网管理设备对所述终端设备进行所述目标网络切片接入授权。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，所述核心网管理设备接收源网络切片发送的网络状态的信息，包括：
    所述核心网管理设备接收无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，所述无线接入网设备或所述核心网用户面设备或所述核心网控制面设备为所述源网络切片中的设备。
  8. 一种网络切片控制方法，其特征在于，包括：
    无线接入网设备向核心网管理设备发送源网络切片的网络状态的信息，所述源网络切片为终端设备已接入的网络切片，所述无线接入网设备为所述源网络切片的无线接入网设备；
    若所述网络状态满足第一预设条件，所述无线接入网设备接收所述核心网管理设备发送的第二切片控制请求，所述第二切片控制请求包括所述终端设备的标识；
    所述无线接入网设备根据所述第二切片控制请求拆除为所述终端设备的标识对应的终端设备建立的承载。
  9. 一种网络切片控制方法，其特征在于，包括：
    核心网控制面设备向核心网管理设备发送源网络切片的网络状态的信息，所述源网络切片为终端设备已接入的网络切片，所述核心网控制面设备为所述源网络切片的核心网控制面设备；
    若所述网络状态满足第一预设条件，所述核心网控制面设备接收所述核心网管理设备发送的第二切片控制请求，所述第二切片控制请求包括所述终端设备的标识；
    所述核心网控制面设备根据所述第二切片控制请求拆除为所述终端设备的标识对应的终端设备建立的承载。
  10. 一种网络切片控制方法，其特征在于，包括：
    终端设备接收核心网管理设备发送的第一切片控制请求；所述终端设备已接入源网络切片，所述第一切片控制请求为所述核心网管理设备根据所述源网络切片发送的网络状态的信息判断出所述源网络切片的网络状态满足第一预设条件时发送给所述终端设备的，所 述第一切片控制请求包括目标网络切片的标识；
    所述终端设备根据所述第一切片控制请求确定从所述源网络切片切换至所述目标网络切片的标识对应的目标网络切片。
  11. 根据权利要求10所述的方法，其特征在于，所述第一切片控制请求还包括所述目标网络切片对应的配置指示信息；所述终端设备接收核心网管理设备发送的第一切片控制请求之后，还包括：
    所述终端设备根据所述配置指示信息进行协议配置以接入所述目标网络切片。
  12. 一种核心网管理设备，其特征在于，包括处理器、存储器和收发器，其中，所述存储器用于存储指令，所述处理器用于调用所述存储器中存储的指令来执行如下操作：
    通过所述收发器接收源网络切片发送的网络状态的信息，所述源网络切片为终端设备已接入的网络切片；
    若所述网络状态满足第一预设条件，所述处理器控制所述终端设备从所述源网络切片切换至目标网络切片。
  13. 根据权利要求12所述的核心网管理设备，其特征在于，所述处理器控制所述终端设备从所述源网络切片切换至目标网络切片，包括：
    所述处理器对所述终端设备进行所述目标网络切片接入授权；
    所述处理器通过所述收发器向所述终端设备发送第一切片控制请求；所述第一切片控制请求用于指示所述终端设备根据所述目标网络切片的标识确定从所述源网络切片切换至所述目标网络切片。
  14. 根据权利要求13所述的核心网管理设备，其特征在于，所述第一切片控制请求还包括所述目标网络切片对应的配置指示信息，所述配置指示信息用于指示所述终端设备根据所述配置指示信息进行协议配置以接入所述目标网络切片。
  15. 根据权利要求13或14所述的核心网管理设备，其特征在于，所述处理器对所述终端设备进行所述目标网络切片接入授权之后，所述处理器还用于：
    通过所述收发器向所述目标网络切片发送第二切片控制请求；所述第二切片控制请求包括所述终端设备的标识，所述第二切片控制请求用于指示所述目标网络切片为所述终端设备的标识对应的终端设备建立承载；
    当所述处理器确定所述目标网络切片已为所述终端设备建立承载时，通过所述收发器向所述源网络切片发送第三切片控制请求；所述第三切片控制请求包括所述终端设备的标识，所述第三切片控制请求用于指示所述源网络切片拆除为所述终端设备的标识对应的终端设备建立的承载。
  16. 根据权利要求13至15任一项所述的核心网管理设备，其特征在于，所述处理器 对所述终端设备进行所述目标网络切片接入授权，包括：
    所述处理器从已接入所述源网络切片的终端设备标识集合中获取所述终端设备的标识，并根据所述终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与所述终端设备的标识对应的签约信息；
    若所述处理器根据所述签约信息确定所述终端设备允许所述核心网管理设备对所述终端设备进行网络切片切换控制，则所述处理器对所述终端设备进行所述目标网络切片接入授权。
  17. 根据权利要求13至15任一项所述的核心网管理设备，其特征在于，所述网络状态的信息中包括所述终端设备的标识；所述处理器对所述终端设备进行所述目标网络切片接入授权，包括：
    所述处理器从所述网络状态的信息中获取所述终端设备的标识，并根据所述终端设备的标识，从归属签约用户服务器中或者策略与计费规则功能设备中获取与所述终端设备的标识对应的签约信息；
    若所述处理器根据所述签约信息确定所述终端设备允许所述核心网管理设备对所述终端设备进行网络切片切换控制，则所述处理器对所述终端设备进行所述目标网络切片接入授权。
  18. 根据权利要求12至17任一项所述的核心网管理设备，其特征在于，所述处理器通过所述收发器接收源网络切片发送的网络状态的信息，包括：
    所述处理器通过所述收发器接收无线接入网设备或核心网用户面设备或核心网控制面设备发送的网络状态的信息，所述无线接入网设备或所述核心网用户面设备或所述核心网控制面设备为所述源网络切片中的设备。
  19. 一种无线接入网设备，其特征在于，所述无线接入网设备为终端设备已接入的源网络切片的无线接入网设备，所述无线接入网设备包括处理器、存储器和收发器，其中，所述存储器用于存储指令，所述处理器用于调用所述存储器中存储的指令来执行如下操作：
    通过所述收发器向核心网管理设备发送所述源网络切片的网络状态的信息；
    若所述网络状态满足第一预设条件，通过所述收发器接收所述核心网管理设备发送的第二切片控制请求，所述第二切片控制请求包括所述终端设备的标识；
    根据所述第二切片控制请求拆除为所述终端设备的标识对应的终端设备建立的承载。
  20. 一种核心网控制面设备，其特征在于，所述核心网控制面设备为终端设备已接入的源网络切片的核心网控制面设备；所述核心网控制面设备包括处理器、存储器和收发器，其中，所述存储器用于存储指令，所述处理器用于调用所述存储器中存储的指令来执行如下操作：
    通过所述收发器向核心网管理设备发送所述源网络切片的网络状态的信息；
    若所述网络状态满足第一预设条件，通过所述收发器接收所述核心网管理设备发送的 第二切片控制请求，所述第二切片控制请求包括所述终端设备的标识；
    根据所述第二切片控制请求拆除为所述终端设备的标识对应的终端设备建立的承载。
  21. 一种终端设备，其特征在于，包括处理器、存储器和收发器，其中，所述存储器用于存储指令，所述处理器用于调用所述存储器中存储的指令来执行如下操作：
    通过所述收发器接收核心网管理设备发送的第一切片控制请求；所述终端设备已接入源网络切片，所述第一切片控制请求为所述核心网管理设备根据所述源网络切片发送的网络状态的信息判断出所述源网络切片的网络状态满足第一预设条件时发送给所述终端设备的，所述第一切片控制请求包括目标网络切片的标识；
    根据所述第一切片控制请求确定从所述源网络切片切换至所述目标网络切片的标识对应的目标网络切片。
  22. 根据权利要求21所述的终端设备，其特征在于，所述第一切片控制请求还包括所述目标网络切片对应的配置指示信息；所述处理器通过所述收发器接收核心网管理设备发送的第一切片控制请求之后，所述处理器还用于：
    根据所述配置指示信息进行协议配置以接入所述目标网络切片。
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