Abstract: A network slice selection method and apparatus are provided, to ensure performance of a high-priority service. The method includes: A first management unit obtains a service request message, where the service request message is used to initiate a service request for a service of a tenant; and the first management unit sends a network slice request message to a second management unit based on the service request message, where the network slice request message carries priority information, the priority information is used to indicate a priority of the tenant or a priority of the service, and the priority information is used by the second management unit to select a network slice for the service of the tenant.

Abstract: A network component management method and a network device are disclosed. The method includes: obtaining, by a network component management unit, performance assurance information of a network component, where the performance assurance information includes at least one of the following: key performance information, performance assurance priority information, or performance assurance enabling information, where the key performance information is used to indicate a key performance of the network component, and the performance assurance enabling information is used to instruct to enable or disable at least one performance assurance function of the network component; and managing, by the network component management unit, the network component based on the performance assurance information. The network component management method and the network device provided in the present disclosure can improve network component management efficiency.

Abstract: This application relates to the field of communications, and provides an information configuration method to configure an association relationship between an AMF group and network slice information for an NSSF, a default AMF, or an NRF, so that the NSSF, the default AMF, or the NRF can select an AMF group meeting a service requirement. The method includes: determining, by a first management unit, an association relationship between information about an AMF group and network slice information, where the association relationship is used to instruct to select the network slice information based on the information about the AMF group or select the information about the AMF group based on the network slice information; and sending, by the first management unit, the association relationship to a first network unit or a management unit of a first network unit; or storing, by the first management unit, the association relationship.

Abstract: This application provides a network slice configuration method, apparatus, and system, and pertains to the field of wireless communications technologies. The method includes: after receiving a management request of a network slice, obtaining or determining, by a network slice manager, network resource information corresponding to a subnet included in the network slice, and then sending, in a form of a subnet management request to a subnet manager, the network resource information corresponding to the subnet, so that the subnet manager configures the corresponding subnet based on the network resource information corresponding to the subnet. In this application, network slice configuration efficiency can be improved.

Abstract: This application provides a network slice configuration method, apparatus, and system, and pertains to the field of wireless communications technologies. The method includes: after receiving a management request of a network slice, obtaining or determining, by a network slice manager, network resource information corresponding to a subnet included in the network slice, and then sending, in a form of a subnet management request to a subnet manager, the network resource information corresponding to the subnet, so that the subnet manager configures the corresponding subnet based on the network resource information corresponding to the subnet. In this application, network slice configuration efficiency can be improved.

Abstract: This disclosure discloses a network slice and network slice subnet management method. In the method, a performance assurance policy of a network slice is determined, so that an NSMF device executes the performance assurance policy of the network slice, to implement performance assurance. In addition, a performance monitoring policy of the network slice may also be determined, so that the NSMF device performs performance monitoring on the network slice according to the performance monitoring policy of the network slice, to learn of a running status of the network slice. In addition, the NSMF device may execute the performance assurance policy of the network slice based on a performance monitoring result. This is also similar for a network slice subnet.

Abstract: Embodiments of this application disclose a method and a device for detecting network reliability. The method includes: A detection apparatus obtains a first quantity of data packets included in a first packet sent by a first network node to a second network node. The detection apparatus obtains first feedback information sent by the second network node, where the first feedback information includes a second quantity of data packets included in the first packet received by the second network node. The detection apparatus calculates communication service availability of a network channel from the first network node to the second network node based on at least one of the first quantity or the second quantity. Embodiments of this application can quickly and accurately detect and evaluate the network reliability.

Abstract: A service management method and apparatus, and a storage medium, where the method is used in a service management system, and where the service management system includes a service management unit and at least one first network management unit. The method includes: receiving, by the service management unit, a service management request, where the service management request carries network type indication information or service requirement information; and determining, by the service management unit, a target network type based on the network type indication information or the service requirement information, where a target network corresponding to the target network type is configured to provide a service, and the target network type includes a sliced network or a non-sliced network.

Abstract: This application provides a network slice configuration method, apparatus, and system, and pertains to the field of wireless communications technologies. The method includes: after receiving a management request of a network slice, obtaining or determining, by a network slice manager, network resource information corresponding to a subnet included in the network slice, and then sending, in a form of a subnet management request to a subnet manager, the network resource information corresponding to the subnet, so that the subnet manager configures the corresponding subnet based on the network resource information corresponding to the subnet. In this application, network slice configuration efficiency can be improved.

Abstract: This application relates to the field of communications, and provides an information configuration method to configure an association relationship between an AMF group and network slice information for an NSSF, a default AMF, or an NRF, so that the NSSF, the default AMF, or the NRF can select an AMF group meeting a service requirement. The method includes: determining, by a first management unit, an association relationship between information about an AMF group and network slice information, where the association relationship is used to instruct to select the network slice information based on the information about the AMF group or select the information about the AMF group based on the network slice information; and sending, by the first management unit, the association relationship to a first network unit or a management unit of a first network unit; or storing, by the first management unit, the association relationship.

Abstract: This application provides a network slice configuration method, apparatus, and system, and pertains to the field of wireless communications technologies. The method includes: after receiving a management request of a network slice, obtaining or determining, by a network slice manager, network resource information corresponding to a subnet included in the network slice, and then sending, in a form of a subnet management request to a subnet manager, the network resource information corresponding to the subnet, so that the subnet manager configures the corresponding subnet based on the network resource information corresponding to the subnet. In this application, network slice configuration efficiency can be improved.

Abstract: This application relates to the field of communications, and provides an information configuration method to configure an association relationship between an AMF group and network slice information for an NSSF, a default AMF, or an NRF, so that the NSSF, the default AMF, or the NRF can select an AMF group meeting a service requirement. The method includes: determining, by a first management unit, an association relationship between information about an AMF group and network slice information, where the association relationship is used to instruct to select the network slice information based on the information about the AMF group or select the information about the AMF group based on the network slice information; and sending, by the first management unit, the association relationship to a first network unit or a management unit of a first network unit; or storing, by the first management unit, the association relationship.

Abstract: A method includes: receiving, by a first access device, a random access message sent by user equipment; and sending, by the first access device, first system information to the user equipment based on the random access message, where the first system information includes cell reselection information related to the first access device. According to the present invention, cell reselection information can be transferred in a random access procedure.

Abstract: Embodiments of this application disclose a method and a device for detecting network reliability. The method includes: A detection apparatus obtains a first quantity of data packets included in a first packet sent by a first network node to a second network node. The detection apparatus obtains first feedback information sent by the second network node, where the first feedback information includes a second quantity of data packets included in the first packet received by the second network node. The detection apparatus calculates communication service availability of a network channel from the first network node to the second network node based on at least one of the first quantity or the second quantity. Embodiments of this application can quickly and accurately detect and evaluate the network reliability.

Abstract: A first network device obtains at least one of sampling information and reporting information, where the sampling information is used to indicate a sampling period, the reporting information is used to indicate a reporting period, the reporting period is N times the sampling period, and N is an integer greater than or equal to 1. The first network device performs sampling in N sampling periods included in the reporting period, to obtain information about N first parameters. The first network device sends the information about the N first parameters to a second network device.

Abstract: A network slice selection method and apparatus are provided, to ensure performance of a high-priority service. The method includes: A first management unit obtains a service request message, where the service request message is used to initiate a service request for a service of a tenant; and the first management unit sends a network slice request message to a second management unit based on the service request message, where the network slice request message carries priority information, the priority information is used to indicate a priority of the tenant or a priority of the service, and the priority information is used by the second management unit to select a network slice for the service of the tenant.

Abstract: Embodiments of the present disclosure provide a management method, and a management device and a system that are based on the method. The method includes: sending, by a second management device, an update request to a first management device, where the update request is used to request the first management device to update requirement information of a subnet managed by the first management device; and then, determining, by the first management device, that the subnet can satisfy the update request, or determining that the subnet cannot satisfy the update request. In the solutions in the embodiments of the present disclosure, the second management device can request the first management device to update the requirement information of the subnet managed by the first management device, thereby preventing a management fault of an entire network slice when a subnet managed by the second management device cannot satisfy a preset requirement.

Abstract: Embodiments provide a network access method and a device. In accordance with the method, a preamble sequence may be received by a second network device from a terminal device on a time-frequency resource occupied by the preamble sequence. A transmit beam may be determined for sending an access response message to the terminal device. The access response message can be sent to the terminal device using the transmit beam. The second access device can send the access response message to the terminal device through beamforming, so that a coverage area of the second access device can be enlarged, directivity of data sent to the terminal device can be improved, and a probability that the terminal device receives the access response message is improved. Therefore, a rate that the terminal device succeeds in accessing the second access device is improved.

Abstract: Embodiments of this application disclose a fault management method. In a slice network, if a first management unit determines fault information in the slice network, the first management unit may determine, based on the fault information and an association relationship between slices, potential fault information that may exist in the slice network. Because an association relationship between an NSI and an NSSI and an association relationship between an NSI and a service that are included in the slice network can reflect a network topology relationship between parts in the slice network, the potential fault information determined based on the association relationship can reflect impact of a fault on the slice network by using the network topology relationship. An embodiment of this application further discloses a related apparatus for fault management.

Abstract: Embodiments of this application provide a message sending method and apparatus. The method includes: receiving, by a distributed node DU, a Radio Resource Control RRC message and indication information that are sent by a central node CU, and sending, by the DU, the RRC message based on the indication information.