Nec Corporation

Yasuhiro Mizukoshi

Ippei Akiyoshi

Shuichi Karino

Nobuhiko Itoh

Hiroaki Aminaka

Makoto Fujinami

Yoshiyuki Yamada

Takayuki Sasaki

Hideyuki Shimonishi

Yoshikazu Watanabe

Masayuki Nakae

Kentaro Sonoda

Yoichiro Morita

Hideki Kurokawa

Masaya Yamagata

Yoichi Hatano

Masahiro Hayashitani

Sadao Kimura

According to an example embodiment, a communication control device includes an acquisition unit configured to acquire video quality information of first video data on a display device detected, based on a transmission status of the first video data transmitted by a first imaging device and a reception status of the first video data on the display device that receives the first video data via a network; and a control unit configured to control a transmission condition of the first video data transmitted from the first imaging device to the display device based on the video quality information of the first video data acquired by the acquisition unit.

Communication control device, communication control system, communication control method, and non-transitory computer-readable medium storing program

The learning unitlearns a neural network. The linearization quantity determination unitdetermines linearization quantity, which is a parameter included in an activation function used in the neural network, and which is a parameter that brings the activation function closer to a linear function by increasing or decreasing itself. The aggregation unitreplaces the activation function, which is determined to converge to a linear function by increasing or decreasing the linearization quantity, with the linear function, and aggregating weights among layers using the replaced linear function. The learning unitcalculates evaluation value based on output by the neural network in learning the neural network, and the linearization quantity determination unitchanges the linearization quantity when the evaluation value satisfies the predetermined criterion.

Neural network learning device, method, and program

A communication control device includes an acquisition unit configured to acquire first video quality information of first video data transmitted from a first imaging device to the display device and second video quality information of second video data transmitted from a second imaging device to the display device; a band estimation unit configured to estimate an available communication band of the second video data from the second video quality information; a band prediction unit configured to predict an available communication band of the first video data based on a reception time difference between the first and second video quality information and predict a common available communication band based on a prediction result thereof and an estimation result; and a determination unit configured to determine transmission conditions of the respective items of first and second video data based on the available communication band common to the first and second imaging devices.

A control apparatus includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: control communication in a vehicle by setting a control entry to a plurality of switches relaying, by referring to the control entry, a packet input to and output from an ECU installed in the vehicle, and perform an authentication processing for a device attempting communication with the ECU via any one of the plurality of switches. The control sets, to the switch, a temporary control entry realizing the communication between the device and ECU when authentication of the device is successful.

Control apparatus, in-vehicle communication system, communication control method and program

A switch comprises: a register; a control entry holding part that holds control entries set by a predetermined control apparatus; a packet processing part that selects a control entry to be applied to a received packet by referring to a value on the register in addition to match conditions for the control entry; a register change part that changes the value on the register in a case where a change instruction for the value on the register is set to the control entry selected.

Switch, control apparatus, communication system, communication control method and program

A control apparatus includes: a control part which controls communication in a vehicle by setting a control entry(ies) to a plurality of switches relaying, by referring to the control entry(ies), a packet(s) input to and output from an ECU(s) installed on the vehicle; and an operation part which performs operation of the control entry according to contents of reprogramming using data for update which updates a program of the ECU(s).

A communication control system to obtain required reliability for an entire network is provided. The communication control system includes: a means for obtaining, based on a load status of a control device that controls nodes included in a network and receives a content of a control signal sent and received between the nodes as a status notification signal, a capability for processing the status notification signal; a means for determining, based on network status information related to communication on the network, area segments each including an arbitrarily number of the nodes; and a means for calculating, based on the capability, a sending interval of the status notification signal of the node for each of the area segments, and sending the sending interval to the node included in the corresponding area segment.

Communication control system, communication control method, and recording medium

A base station () is connectable to a mobile station () by a plurality of Radio Access Technologies (RATs) including first and second RATs. The base station () is configured to be able to use a communication path () that passes through a first upstream network () corresponding to the first RAT, when the mobile station () performs communication via the second RAT. This enables, for example, efficient use of the upstream networks when the Multi-RAT base station () supports a plurality of upstream networks.

Radio communication system, base station, communication method, mobile station, and computer-readable medium

A technique enabling diverse communication quality control for a communication service is provided. A communication apparatus includes a first means for storing a parameter notified from a control apparatus, wherein the control apparatus can send a control signal related to the communication path to the communication apparatus; and a second means that can perform communication quality control on a packet, based on a quality class of the communication path corresponding to the packet and the parameter corresponding to the communication path.

Communication apparatus, control apparatus, communication method, control method, and program

A technique enabling diverse communication quality control for a communication service is provided. A communication apparatus according to the present invention is a communication apparatus that performs communication over a communication path set up in a network, including: a first means for identifying the communication path corresponding to a packet; and a second means for adding quality information to the packet, wherein the quality information is selected from among a plurality of pieces of quality information associated with a quality class of the identified communication path.

Communication apparatus, control apparatus, communication system, communication method, control method, and program

A communication system, a communication apparatus, a control method, and a control apparatus are provided that make it possible to flexibly increase/decrease a U-plane processing function of a communication apparatus. A communication system in which a logical path () is set up in a network to perform communication, comprises: a control plane () for the logical path; and a control apparatus () that, in response to a request from the control plane, selects from communication equipment resources a communication equipment () to perform user-plane processing in connection with data transmission through the logical path, and sets an operation rule related to the user-plane processing in the selected communication equipment.

Communication system, communication apparatus, and control method and control apparatus thereof

The wireless communication terminal includes: a plurality of communication interfaces each of which corresponds to at least one of a plurality of wireless access systems; a first unit receiving an instruction from a prescribed control apparatus, the instruction including a wireless access system determined by the control apparatus based on a status of the wireless communication terminal, which changes along with movement of the wireless communication terminal; and a second unit communicating by using a communication interface corresponding to the instructed wireless access system.

Wireless communication terminal, communication system, control apparatus, communication method and program

The present invention provides a communication network comprising a host network, a plurality of base stations, at least a mobile host capable of establishing links to the base stations, and a hierarchy-network of plural routers which are improved in transferring performances for ensuring continuous operations with a reduced load without packet loss.

Method and system for controlling communication network and router used in the network

A communication terminal comprises: first means that communicates with a network system that includes a forwarding apparatus forwarding a packet and a control apparatus informing the forwarding apparatus of a processing rule prescribing a packet processing method; second means that determines a processing operation to be executed by the network system from among packet processing operations to be executed by the communication terminal; and third means that informs the forwarding apparatus of a processing rule corresponding to the determined packet processing operation.

Growing community of inventors

Tokyo, Japan

Yasuhiro Mizukoshi