Sony Corporation

Sony Group Corporation

Fumio Teraoka

Hiroaki Takano

Ryota Kimura

Ryo Sawai

Hirofumi Kasai

Shin Saito

Kuniaki Kurihara

Kazuhiro Shitama

Tomonori Sato

Hiroki Watanabe

Jun Murai

Akihiro Tominaga

Kazuki Hayashi

Provided is a communication device that operates as a management node in a first zone being a management domain on a network, the communication device including a communication unit that executes communication with another node and a control unit that controls communication executed by the communication unit. The control unit operates such that, when having received, from a user, a request regarding an application that chains one or more application functions (AFs) to act on a packet flowing in the network, the control unit acquires information regarding the application from a second zone being a management domain other than the first zone, and then calculates a deployment destination of the AFs in the network including the first zone and the second zone based on the information.

Communication device and communication method

There is provided a communication device including: a communication section that executes communication with another node; and a control section that controls the communication by the communication section, the control section adding, to a packet directed toward a transmission destination node by a transmission source node, header information containing at least path information between the communication device located in a stage subsequent to the transmission source node and a target node located in a stage preceding the transmission destination node, and causing the communication section to send the packet toward another node residing in a path.

Communication device, communication method, and data structure

A communication device () which operates as an application node which executes one or a plurality of applications includes: a communication unit () that executes communication with another logical node; and a control unit () that controls communication by the communication unit (). The another logical node is a node which is applied with application function chaining (AFC) in which, in transmission/reception of an application message with the application node as a transmission source or a transmission destination, one or a plurality of application functions act on the application message midway along a path of the transmission/reception, and the control unit () causes the communication unit () to transmit, to the another logical node, a message according to a publishing/subscription model in order to transmit and receive the application message on which the one or the plurality of application functions act.

A communication device is provided that makes a single or a plurality of functions desired by a service user act on a packet desired by the service user in a service for transferring a packet in a network. A communication device is provided that includes a communication unit that communicates with another node and a control unit that controls the communication by the communication unit, in which the control unit generates path information with a target node, and in the path information with the target node, at least information regarding communication with at least a single relay node that exists between the communication device and the target node, information regarding a function to be performed by the relay node, and content of processing according to the function execution result by the relay node are written.

Communication device, communication method and data structure

There is provided a communication apparatus including a communication control section that performs, using a network address configured by m bytes, communication control on one or more network slices, and the network address has a prefix section that includes, in a portion of high-order n bytes, a slice number that identifies the one or more network slices and a subnet number in the one or more network slices.

Radio network slicing in 5G new radio (NR)

A mechanism related to a relay node in consideration of movement. The relay device includes: a relay unit that relays a wireless signal between a first device that is a connection destination and one or more subordinate second devices; and a control unit that assigns a network layer IP address, which has a prefix portion that is at least partially common, to each of the one or more second devices.

Relay device, terminal device, communication control device, and method

A virtual network prefix is provided as a dedicated prefix for a mobile node in a domain having a plurality of subnets. The domain includes a layered network that has a quasi-micro mobility network (QMMN) and a pure-micro mobility network (PMMN). The quasi-micro mobility network (QMMN) performs prefix-based routing, and the pure-micro mobility network (PMMN) performs routing using two different routing protocols, that is, prefix-based routing and host-based routing. In each network, processing for changing a route, such as changing cache data or the like, is performed depending on how a terminal moves.

Communication processing system, communication processing method, communication terminal, data transfer controller, and program

An information processing device, method thereof and recording medium for communication regardless of the status of the terminal device. A domain name server stores the node identifier, and address for one or more mapping agentscorresponding to the host name of a terminal device. The domain name server receives a transmit request for the node identifier of terminal deviceand the address of the mapping agent, sent from a terminal device, along with the host name or node identifier of terminal device. The domain name serverselects the node identifier for terminal device and address for mapping agent when the transmit request is received. The domain name server sends the node identifier for terminal deviceand address for mapping agent to the terminal device.

Information processing device, method thereof, and recording medium

In the data transmitting method according to this invention, the application layer reads a resolver to acquire a node identifier and then makes an inquiry to the DNS server when a user designates the hose name of the destination. Upon acquiring the node identifier, the application layer transmits the node identifier to the VIP layer through the TCP/UDP layer. The VIP layer makes an inquiry to the DNS server to acquire the home prefix of the destination node in accordance with the node identifier. After acquiring the node identifier and the home prefix, the VIP layer combines them together, generating a mobile-oriented IPv6 address. Mobile permeability can thereby realized, without increasing the header size of packets, in the data transmitting method according to the present invention.

Data transmission method

In a system wide network of a hierarchical structure, address allocation is to be managed optimally the system-wide network has a core portion having a static connection pertinence and a terminal portion connected dynamically to the core portion. The upper order server allocates an address block to a lower order server, whilst the lower order server returns the address block to the upper order server. The address allocation in network addition is classed into address allocation phase in the network core portion and an address allocation phase in the network terminal portion. For completing a link for outside with respect to the system-wide network, a representative server acquires its own IP address. The representative server then requests allocation of an address block used in the network terminal portion to its directly higher order server and acquires the so-requested address block. The representative server then executes automatic address allocation processing using e.g., DNCP in the network terminal portion.

Automatic address management method

The communication method and communication apparatus according to the invention are capable of generating a packet having a header which includes at least data representing an identifier of a transmitting end point of a logical communication channel, data representing an identifier of a receiving end point of the logical communication channel, data representing an address corresponding to the identifier of the transmitting end point of the logical communication channel, data representing an address corresponding to the identifier of the receiving end point of the logical communication channel, data representing an IP address corresponding to an address of the transmitting end point of the logical communication channel, and data representing an IP address corresponding to an address of the receiving end point of the logical communication channel; and are capable of transmitting the packet thus generated. The inventive arrangements allow the initially established logical communication channel to remain intact and available even if a computing entity is moved from one computer to another or if a computer in which a computing entity resides is relocated within the network.

Communication method and communication apparatus

A communication system includes a communication apparatus for connecting a first network to a second network, wherein a packet transmitted by a transmitting station in the first network by way of the communication apparatus to a receiving station in the second network is relayed selectively by the communication apparatus to the second network. First authentication information is created, in part, according to predetermined key information and the packet is transmitted with the header information thereof including the first authentication information. First authentication information in the header information of the packet is compared with second authentication information created, in part, according to predetermined key information, by the communication apparatus in order to determine whether or not the packet is to be relayed to the second network.

Growing community of inventors

Kanagawa, Japan

Fumio Teraoka