Nippon Telegraph and Telephone Corporation

Hiroki Iwasawa

Takeshi Kuwahara

Kenta Kawakami

Shinya Tamaki

Hitoshi Masutani

Kazuhiro Tokunaga

Daishi Aiura

Nobuhiro Azuma

Takahide Kitsu

A control device that performs resource allocation to a network including a transmission device, one or more transfer devices, and a reception device as nodes, the control device including a schedule database unit that holds schedules of time slots not allocated to specific communication, the schedules being set in advance for respective nodes of the network, and a schedule processing unit that, in a case where a communication request is received, selects a time slot that satisfies a transmission request amount of the transmission device on the basis of remaining transmittable amounts of respective time slots in the schedules and notifies the transmission device of a selected time slot.

Control apparatus, resource allocation method and program

A resource estimation device is configured to estimate a resource for a virtual terminal. The resource estimation device includes: a resource estimation unit configured to calculate a resource value corresponding to a VR image output scheme and a characteristic value of 3D data, using resource relation information, the resource value causing the virtual terminal to operate at the characteristic value, the VR image output scheme being a scheme for outputting the VR image and being input, the 3D data being data about an object that is drawn by a VR application program, the resource relation information being set for each VR image output scheme and indicating a relation about change between the characteristic value and the resource value, and configured to calculate the resource value as the resource necessary for the virtual terminal; and a relation correction unit configured to alter the resource value included in the resource relation information.

Resource estimation apparatus, resource estimation method and program

A packet transfer deviceincludes a packet classification unitconfigured to classify received packets, queuesfor respective classifications, priorities being set to the queues, a dequeue processing unitconfigured to extract packets from the queue under a predetermined rule based on the priorities set to the queues, and a queue priority control unitconfigured to perform control, upon detecting that a reception amount of packets related to a communication flow temporarily or intermittently increases from a reception amount under a normal condition, such that a priority of one of the queues holding the packets related to the communication flow is temporarily raised from a priority under the normal condition, during a period while the reception amount of packets related to the communication flow temporarily or intermittently increases.

Packet forwarding apparatus, method and program

A packet transfer apparatus is configured to perform packet exchange processing for exchanging multiple continuous packets with low delay while maintaining fairness between communication flows of the same priority level. The packet transfer apparatus includes: a packet classification unit; queues that holds the classified packets for each classification; and a dequeue processing unit that extracts packets from the queues. The dequeue processing unit includes a scheduling unit that controls the packet extraction amount extracted from the queue for a specific communication flow based on information on the amount of data that is requested by the communication flow and is to be continuously transmitted in packets.

Growing community of inventors

Musashino, Japan

Hiroki Iwasawa