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: A slice management system (1) is a slice management system managing slices that are virtual networks generated on a network infrastructure, comprises a memory storing a priority list in which slices of connection destination candidates of a UE (2) are aligned in order of priority levels and, in a case in which a connection request for a slice from the UE (2) is acquired, determines a slice to which UE (2) is to be connected on the basis of the priority list stored in the memory.

Abstract: In a communications system (1A), a communication service which is utilized by UE (10) is specified from among a first communication service and a second communication service, an address of a SGW (80) corresponding to a service type of the first communication service is retrieved when the specified communication service is the first communication service with reference to information in which the specified communication service and the address of the SGW (80) that transmits and receives data for utilizing the communication service are correlated with each other, and a SGW (80) other than a first communication control device is retrieved when the specified communication service is the second communication service.

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 various embodiments, a radio access network node arrangement is provided. The radio access network node arrangement may include a first radio access network node configured to provide a radio connection in accordance with a first radio type, a second radio access network node configured to provide a radio connection in accordance with a second radio type, and a receiver configured to receive a plurality of data units from a core network. Each data unit includes a selection indicator. The radio access network node arrangement may further include a selection circuit configured to select, using the selection indicator and a stored set of one or more selection rules, for each data unit of the plurality of data units, one or more of the radio types to transmit the data unit. Each selection rule includes a rule to select one or more radio types at least based on a selection indicator.

Abstract: A correspondence information storage 32 acquires correspondence information in which an eNB 20, an SGW-C 60, and an SGW-U 70 are associated with each other in advance, and a connection controller 31 receives a handover request from the eNB 20 and identifies a target eNB 20 and a source eNB 20. A connection changer 33 identifies the SGW-C 60 and the SGW-U 70 associated with the target eNB 20 and identifies the SGW-C 60 and the SGW-U 70 associated with the source eNB 20, with reference to the correspondence information. The connection changer 33 determines whether or not the SGW-C 60 and the SGW-U 70 are to be changed on the basis of the identified result, and controls change requests for at least one of the SGW-C 60 and the SGW-U 70 on the basis of a result of the determination.

Abstract: A slice management system is a system managing a slice that is a virtual network generated on a network infrastructure and includes a DNS storing slice information relating to a slice to which a UE can be connected for each area and determines whether or not the UE can, in a moving destination area that is a destination of movement of the UE between areas, be connected to a slice to which the UE was connected in a moving source area by referring to the DNS. In a case in which it is determined that the connection cannot be made, the slice management system generates the slice in the moving destination area such that the UE can be connected to the slice in the moving destination area.

Abstract: A slice management system (1) is a slice management system managing slices that are virtual networks generated on a network infrastructure, comprises a memory storing a priority list in which slices of connection destination candidates of a UE (2) are aligned in order of priority levels and, in a case in which a connection request for a slice from the UE (2) is acquired, determines a slice to which UE (2) is to be connected on the basis of the priority list stored in the memory.

Abstract: In a communication system (1) according to this embodiment, an MME (30) selects an SGW-C (60) transmitting and receiving control signals using a control plane that is a route for transmitting the control signals for the communication service used by a UE (10), from among a plurality of gateways, on the basis of a required condition of the communication service used by the UE (10). In addition, the selected SGW-C (60) selects an SGW-U (70) transmitting and receiving user signals using a user plane that is a route for transmitting the user signals for the communication service, on the basis of the required condition of the communication service used by the UE (10).

Abstract: In a communications system (1A), a communication service which is utilized by UE (10) is specified from among a first communication service and a second communication service, an address of a SGW (80) corresponding to a service type of the first communication service is retrieved when the specified communication service is the first communication service with reference to information in which the specified communication service and the address of the SGW (80) that transmits and receives data for utilizing the communication service are correlated with each other, and a SGW (80) other than a first communication control device is retrieved when the specified communication service is the second communication service.

Abstract: A correspondence information storage 32 acquires correspondence information in which an eNB 20, an SGW-C 60, and an SGW-U 70 are associated with each other in advance, and a connection controller 31 receives a handover request from the eNB 20 and identifies a target eNB 20 and a source eNB 20. A connection changer 33 identifies the SGW-C 60 and the SGW-U 70 associated with the target eNB 20 and identifies the SGW-C 60 and the SGW-U 70 associated with the source eNB 20, with reference to the correspondence information. The connection changer 33 determines whether or not the SGW-C 60 and the SGW-U 70 are to be changed on the basis of the identified result, and controls change requests for at least one of the SGW-C 60 and the SGW-U 70 on the basis of a result of the determination.

Abstract: A method for waking up one or more sleeping small cell base stations in a wireless communication system for serving a user equipment is described. The wireless communication system includes a plurality of small cell base stations and one or more macro base stations. A wake up signal configuration is received at a user equipment, and a wake up signal configured in accordance with the received wake up signal configuration is transmitted by the user equipment.

Abstract: A method for implementing an entity of a network by virtualizing said network entity and implementing it on one or more servers each acting as an execution unit for executing thereon one or more applications running and/or one or more virtual machines running on said execution unit, each of said application programs or virtual machines running on a server and implementing at least a part of the functionality of said network entity being called a virtual network function VNF module, wherein a plurality of said VNF modules together implement said network entity to thereby form a virtual network function VNF, said method comprising the steps of: obtaining m key performance indicators (KPI) specifying the required overall performance of the VNF, obtaining n performance characteristics for available types of execution units, determining one or more possible deployment plans based on the obtained m KPI and n performance characteristics, each deployment plan specifying the number and types of execution units, such t

Abstract: A method and apparatus for configuring a virtual network function manager (VNFM) managing a virtual network function (VNF) to access a virtual infrastructure manager (VIM), wherein the VNFM accesses the VIM through an interface, the interface having a VIM interface type, and the VNFM supports multiple VIM interface types. The method includes obtaining by the VNFM information about the VIM interface type supported by the VIM, and accessing the VIM by the VNFM through the interface according to the information about the VIM interface type.

Abstract: A system for implementing a radio over fiber (RoF) transmission in a passive optical network (PON), said passive optical network comprising a trunk line, a remote node, and a plurality of leaf nodes connected to said remote node, wherein one of said plurality of leaf nodes comprises a baseband processing unit for performing a baseband processing on a signal received via said trunk line to perform the transformation to radio over fiber by generating a radio over fiber signal and to forward the resulting radio over fiber signal to said remote node, wherein said remote node is adapted to forward the radio over fiber signal received from said leaf node to the other leaf nodes of said passive optical network.

Abstract: A system for implementing a radio over fiber (RoF) transmission in a passive optical network (PON), said passive optical network comprising a trunk line, a remote node, and a plurality of leaf nodes connected to said remote node, wherein one of said plurality of leaf nodes comprises a baseband processing unit for performing a baseband processing on a signal received via said trunk line to perform the transformation to radio over fiber by generating a radio over fiber signal and to forward the resulting radio over fiber signal to said remote node, wherein said remote node is adapted to forward the radio over fiber signal received from said leaf node to the other leaf nodes of said passive optical network.

Abstract: A method for implementing an entity of a network by virtualizing said network entity and implementing it on one or more servers each acting as an execution unit for executing thereon one or more applications running and/or one or more virtual machines running on said execution unit, each of said application programs or virtual machines running on a server and implementing at least a part of the functionality of said network entity being called a virtual network function VNF module, wherein a plurality of said VNF modules together implement said network entity to thereby form a virtual network function VNF, said method comprising the steps of: obtaining m key performance indicators (KPI) specifying the required overall performance of the VNF, obtaining n performance characteristics for available types of execution units, determining one or more possible deployment plans based on the obtained m KPI and n performance characteristics, each deployment plan specifying the number and types of execution units, such t

Abstract: A system for interconnecting one or more leaf nodes attached to the leaves of an optical distribution network (ODN), comprising: A first and a second optical distribution network respectively comprising a remote node for distributing signals from a central office and/or an optical line terminal to a plurality of leaf nodes connected to said optical distribution network; a link connecting a first leaf node connected to the first optical distribution network to a second leaf node connected to the second optical distribution network, wherein the remote node of the second optical distribution network is adapted to forward an optical signal from said second leaf node which has received the signal from said first leaf node to the other leaf nodes of said second optical distribution network.