Abstract: This application discloses a service processing method, a mobile edge computing device, and a network device, to resolve a technical problem of low resource utilization of an MEC in the prior art. The method includes: receiving, by a first mobile edge computing device, a first service request, where the first service request includes a service type and/or service content; sending, by the first mobile edge computing device, a second service request to a second mobile edge computing device, where the second service request includes at least part of the service type and/or at least part of the service content, and identification information of the first mobile edge computing device; and receiving, by the first mobile edge computing device, service data corresponding to the second service request from the second mobile edge computing device.

Abstract: The embodiments of the application disclose a mobile handover method. The method includes: a first network device receives first information, and learns that a first terminal device is handed over to a target access network device. The first network device sends second information to a second network device, and the second network device determines, based on the second information, whether to reselect a target user plane function device for the first terminal device; and/or the first network device sends third information to a third network device, and the third network device determines, based on the third information, whether to reselect a target application server for the first terminal device. If the target user plane function device and/or the target application server need/needs to be reselected, a user plane function device and/or an application server need/needs to be handed over in a timely manner.

Abstract: A mobile edge computing (MEC) management device receives service description information and service execution information that are sent by an exposure function device and that are of a to-be-deployed service, where the service execution information includes information for executing the service description information; determines a target MEC execution device; sends the service description information and the service execution information to the target MEC execution device; receives an execution result of the service execution information from the target MEC execution device, where the execution result is obtained by the target MEC execution device based on the service description information and the service execution information; obtains a service result of the to-be-deployed service based on the execution result; and sends the service result to the exposure function device.

Abstract: This application discloses a service processing method, a mobile edge computing device, and a network device, to resolve a technical problem of low resource utilization of an MEC in the prior art. The method includes: receiving, by a first mobile edge computing device, a first service request, where the first service request includes a service type and/or service content; sending, by the first mobile edge computing device, a second service request to a second mobile edge computing device, where the second service request includes at least part of the service type and/or at least part of the service content, and identification information of the first mobile edge computing device; and receiving, by the first mobile edge computing device, service data corresponding to the second service request from the second mobile edge computing device.

Abstract: The present invention provides a failure logic modeling method for a high-speed railway train operation control on-board system, including the following steps: determining the functional relationship between the structure and the parts of the train control on-board system; analyzing the failures of the parts based on known failures of the train control on-board system in combination with brainstorming; establishing an FMEA table to generalize the failures of the parts; editing and simulating the failures by using a modeling tool. By adopting the present invention, the failure modes analyzed are more systematic, and the failure logic modeling can be carried out from a global perspective more easily, the whole process can be better targeted meanwhile, the security analysis complexity of the train control system will be effectively reduced and the development period of the train control system will be shortened.

Abstract: The present invention provides a failure logic modeling method for a high-speed railway train operation control on-board system, including the following steps: determining the functional relationship between the structure and the parts of the train control on-board system; analyzing the failures of the parts based on known failures of the train control on-board system in combination with brainstorming; establishing an FMEA table to generalize the failures of the parts; editing and simulating the failures by using a modeling tool. By adopting the present invention, the failure modes analyzed are more systematic, and the failure logic modeling can be carried out from a global perspective more easily, the whole process can be better targeted meanwhile, the security analysis complexity of the train control system will be effectively reduced and the development period of the train control system will be shortened.