公开(公告)号：US20190007955A1

公开(公告)日：2019-01-03

申请号：US16075205

申请日：2017-01-23

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroshi OU ,  Takayuki KOBAYASHI ,  Daisuke HISANO ,  Tatsuya SHIMADA

IPC: H04W72/12 ,  H04W72/04 ,  H04W56/00

Abstract: A terminal station device is a terminal station device of a communication system in which a high-order device, the terminal station device, an end-terminal device, and a low-order device are communicably connected in this order, the high-order device notifies the low-order device of resource information indicating a resource that is usable in communication, and thereby the resource is allocated to the low-order device. The terminal station device includes: a band allocation unit that allocates a band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device, based on an interval at which the terminal station device has received the resource information.

公开(公告)号：US20180287769A1

公开(公告)日：2018-10-04

申请号：US15763278

申请日：2016-10-04

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Daisuke HISANO ,  Tatsuya SHIMADA

IPC: H04L5/14 ,  H04W72/10

CPC classification number: H04L5/14 ,  H04B7/15528 ,  H04B10/27 ,  H04J14/02 ,  H04L5/0008 ,  H04L5/0064 ,  H04L5/0087 ,  H04L5/1469 ,  H04L12/44 ,  H04W72/10

Abstract: A transmission system for performing communication according to time division duplex (TDD), includes a relay unit configured to relay uplink signals and downlink signals in the first and second communication systems, a TDD information estimation unit configured to estimate a transmission stop period during which no uplink signal of the first communication system is transmitted, an estimation error detection unit configured to detect that the estimation of the transmission stop period is erroneous on the basis of the uplink signal or the downlink signal of the first communication system, and a bandwidth allocation unit configured to prioritize allocation of a bandwidth in the relay unit for the uplink signal of the first communication system over allocation of a bandwidth in the relay unit for the uplink signal of the second communication system if the estimation of the transmission stop period is erroneous.

公开(公告)号：US20180063831A1

公开(公告)日：2018-03-01

申请号：US15558395

申请日：2016-03-25

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hiroshi OU ,  Tatsuya SHIMADA ,  Takayuki KOBAYASHI ,  Jun TERADA

IPC: H04W72/04 ,  H04W28/20 ,  H04W72/12

CPC classification number: H04J14/0227 ,  H04J14/0228 ,  H04J14/0252 ,  H04L12/44 ,  H04L47/724 ,  H04L47/824 ,  H04W28/20 ,  H04W72/0413 ,  H04W72/12 ,  H04W88/02

Abstract: Information on allocation of a bandwidth of uplink communication of each user device is extracted from information notified by an upper-level device on the uplink communication of the user devices. Identification information of a lower-level device connected to a terminal device and identification information of the user devices are stored in correlation with each other. A bandwidth demanded for uplink communication of the terminal device is determined on the basis of the information on the allocation of the bandwidth of the uplink communication of each of the user devices and the identification information of the user devices. A start time point of the uplink communication of the terminal device and the amount of information of signals for which transmission of the uplink communication of the terminal device is allowed are allocated to the terminal device on the basis of the bandwidth demanded for the uplink communication of the terminal device.