Abstract: A slice operation device managing a plurality of slices to each of which a service using the virtual network is allocated, the slice operation device including: a slice information holding unit configured to hold allowable diversion degree information that is information on a resource amount which can be diverted to transmission and reception using a slice different from a slice in question, among resources regarding the slice in question, the allowable diversion degree information being held for each of the plurality of slices; and a signal control unit configured, in a case where resources of one of the plurality of slices are insufficient, to cause resources of a slice different from the slice whose resources are insufficient to be diverted to transmission and reception of a signal using the slice whose resources are insufficient, based on the allowable diversion degree information held by the slice information holding unit.

Abstract: An object is to provide a communication connection device and a communication connection method enabling priority forwarding processes in units of slice networks in addition to in units of communication flows. The RAN 100 is a communication connection device allocated to one or a plurality of slice networks each of which is a virtual network. The RAN 100 includes the storage unit 102 storing priority of performing a forwarding process for each communication flow representing a data forwarding unit and slice network, and the forwarding processing unit 104 forwarding data transmitted from the core network to the user terminal 50 according to the priority stored in the storage unit 102.

Abstract: An object is to provide a slice management system capable of assigning slices to a plurality of business operators. In a parent SMF 100, a slice management table 103 can manage resources of a slice managed by a child SMF 100a or the like, and a communication unit 101 can notify the child SMF 100a or the like of the resources. The child SMF 100a or the like receives the resources and stores the resources in the slice management table 106. Therefore, the child SMF 100a or the like can manage the resources of the slice managed by the child SMF 100a or the like, and the child SMF 100a can independently enable the management of the resources.

Abstract: In a slice management device 10, a storage request accepting unit 11 acquires correspondence information in which a service, a slice, and tracking areas are associated with each other. A presence-in-area identifying unit 13 identifies a presence-in-area status of a UE 130. An assignment unit 14 assigns a slice corresponding to a service used by the UE 130 and tracking areas represented by the correspondence information. In this case, the slice management device 10 assigns a slice to a service in accordance with the presence-in-area status of the UE 130, and accordingly, a slice assigned to the service can be dynamically changed.

Abstract: An object is to provide a communication connection device and a communication connection method enabling priority forwarding processes in units of slice networks in addition to in units of communication flows. The RAN 100 is a communication connection device allocated to one or a plurality of slice networks each of which is a virtual network. The RAN 100 includes the storage unit 102 storing priority of performing a forwarding process for each communication flow representing a data forwarding unit and slice network, and the forwarding processing unit 104 forwarding data transmitted from the core network to the user terminal 50 according to the priority stored in the storage unit 102.

Abstract: An object is to provide a slice management system capable of assigning slices to a plurality of business operators. In a parent SMF 100, a slice management table 103 can manage resources of a slice managed by a child SMF 100a or the like, and a communication unit 101 can notify the child SMF 100a or the like of the resources. The child SMF 100a or the like receives the resources and stores the resources in the slice management table 106. Therefore, the child SMF 100a or the like can manage the resources of the slice managed by the child SMF 100a or the like, and the child SMF 100a can independently enable the management of the resources.

Abstract: In a slice management device 10, a storage request accepting unit 11 acquires correspondence information in which a service, a slice, and tracking areas are associated with each other. A presence-in-area identifying unit 13 identifies a presence-in-area status of a UE 130. An assignment unit 14 assigns a slice corresponding to a service used by the UE 130 and tracking areas represented by the correspondence information. In this case, the slice management device 10 assigns a slice to a service in accordance with the presence-in-area status of the UE 130, and accordingly, a slice assigned to the service can be dynamically changed.

Abstract: A slice operation device managing a plurality of slices to each of which a service using the virtual network is allocated, the slice operation device including: a slice information holding unit configured to hold allowable diversion degree information that is information on a resource amount which can be diverted to transmission and reception using a slice different from a slice in question, among resources regarding the slice in question, the allowable diversion degree information being held for each of the plurality of slices; and a signal control unit configured, in a case where resources of one of the plurality of slices are insufficient, to cause resources of a slice different from the slice whose resources are insufficient to be diverted to transmission and reception of a signal using the slice whose resources are insufficient, based on the allowable diversion degree information held by the slice information holding unit.

Abstract: A mobile communication system is a mobile communication system that controls a connection with a slice which is a virtual network generated on a network infrastructure, and includes a request receiving unit 12 that receives a request for a connection with a slice of a control target of an AMF 100 from a UE 140 used by a user and a selection information transmitting unit 14 that controls, in response to the reception of the request, the connection of the UE 140 with the slice, acquires selection information for selecting a slice of a control target of another AMF 100x different from the AMF 100, and transmits the selection information to the terminal.

Abstract: A common C-Plane control node includes a change request acquiring unit that acquires a change request relating to changing of a communication path relating to a UE, a determination unit that determines whether or not the UE has set up the communication path in each of control nodes of a plurality of slices using information included in the change request acquired by the change request acquiring unit, and a communication processing unit that performs a process relating to changing of a communication path while forming a state in which the communication path before change and the communication path after change coexist for each of a plurality of communication paths in a case in which the determination unit determines that the UE has set up the communication path in each of the plurality of slices.

Abstract: In a communication system (1), when there is no access destination corresponding to a service type to be used by a piece of UE (50) in one of cellular communication and non-cellular communication, a retrieval unit (13) of a DB server (10) selects an access destination by referring to correspondence information in the other of the cellular communication and the non-cellular communication. Thus, when there is no access destination corresponding to the service type to be used by the UE (50) in one of the cellular communication and the non-cellular communication, the access destination corresponding to the service type is selected in the other of the cellular communication and the non-cellular communication. Therefore, it is possible to select an access destination suitable for the service type from both the cellular communication and the non-cellular communication.

Abstract: A C-plane device in a path control system comprises: a storage unit storing designation information designating search key information of a node used as a search key determining a transmission destination and part information indicating a packet part in which the search key information is included; and a setting unit, in a case in which a new node is connected to the U-plane device, acquires node information relating to the new node, extracts search key information of the new node on the basis of the acquired node information and the stored to designation information, and, in a case in which, in a packet received by the U-plane device, the search key information of the new node is included in a packet part indicated by the part information, sets a transmission destination of the packet for each of at least a part of U-plane devices.

Abstract: A slice changing device is disclosed including a circuitry configured to acquire, in a case where a condition for changing a slice is satisfied, a connection destination of a slice after change. The circuitry is further configured to notify a communication device that connects a terminal using a slice and a connection destination of a slice of the acquired connection destination, and to release a resource relating to a slice before change after notification by the notifying means, where a service which is used by the terminal is allocated to a slice, and in a case where a condition in which the slice is changed is satisfied, the service is allocated to a slice after change.

Abstract: In a communication system in which a plurality of bearers are set up between UE and one or more PGWs, a PGW measures an idle time for each bearer and determines whether or not the measured idle time has reached an idle timer threshold value which is determined in advance for each of the plurality of bearers (Step 1). Then, when it is determined that the idle time for one bearer, for example, bearer 2, has reached the idle timer threshold value (Step 2), a PGW2 requests an MME to release bearer 2 via an SGW2 (Steps 3 and 4), and the MME performs a process of releasing bearer 2 in response to the request (Step 5 and the like).

Abstract: In a service mapping apparatus, an allocation service table, which associates a service to which a slice is allocated in advance, the slice, and an address representing an apparatus executing the service with each other, is stored. In addition, a request accepting unit of the service mapping apparatus receives an SLA-SL that is a requirement of a function. A determination unit determines a slice including an SLA-SL corresponding to the received service requirement (SLA-SL) of the service (satisfying the service requirement). In a case in which a service that is the allocation target is associated with a slice in advance, an allocation unit changes allocation of the service to the determined slice.

Abstract: A C-plane device in a path control system comprises: a storage unit storing designation information designating search key information of a node used as a search key determining a transmission destination and part information indicating a packet part in which the search key information is included; and a setting unit, in a case in which a new node is connected to the U-plane device, acquires node information relating to the new node, extracts search key information of the new node on the basis of the acquired node information and the stored designation information, and, in a case in which, in a packet received by the U-plane device, the search key information of the new node is included in a packet part indicated by the part information, sets a transmission destination of the packet for each of at least a part of U-plane devices.

Abstract: A network operating device is disclosed that serves as a slice management device and assigns a service to slices that are virtual networks generated on a network infrastructure. The slices are being arranged in a plurality of stages of a communication path along which communication is performed between a user equipment as a user terminal and a service server providing the service. The network operating device includes an information acquiring unit that acquires a slice setting request including a service requirement, a slice setting policy determining unit that determines a slice setting policy for setting slices, and a slice setting unit that performs a process relating to the settings of the slices in the plurality of stages on the basis of the setting policy.

Abstract: A mobile communication system is a mobile communication system that controls a connection with a slice which is a virtual network generated on a network infrastructure, and includes a request receiving unit 12 that receives a request for a connection with a slice of a control target of an AMF 100 from a UE 140 used by a user and a selection information transmitting unit 14 that controls, in response to the reception of the request, the connection of the UE 140 with the slice, acquires selection information for selecting a slice of a control target of another AMF 100x different from the AMF 100, and transmits the selection information to the terminal.

Abstract: In a communication system (1), when there is no access destination corresponding to a service type to be used by a piece of UE (50) in one of cellular communication and non-cellular communication, a retrieval unit (13) of a DB server (10) selects an access destination by referring to correspondence information in the other of the cellular communication and the non-cellular communication. Thus, when there is no access destination corresponding to the service type to be used by the UE (50) in one of the cellular communication and the non-cellular communication, the access destination corresponding to the service type is selected in the other of the cellular communication and the non-cellular communication. Therefore, it is possible to select an access destination suitable for the service type from both the cellular communication and the non-cellular communication.

Abstract: A mobile communication system 8 is a mobile communication system comprising a core network comprising a RAN 3 (a radio access network), an SM 2 (a session management function) that manages a session between a UE 4 (a mobile communication terminal) and an MM 1 (a mobility management function) that manages mobility of the UE 4, and the SM 2 comprises a communication path establishment unit 22 that establishes a communication path enabling communication between the SM 2 and a node of the RAN 3 without passing through the MM 1. The communication path establishment unit 22 may establish a communication path when the communication path establishment unit 22 receives the session construction request at the time of attachment of the UE 4 from the MM 1.