公开(公告)号：US20220014268A1

公开(公告)日：2022-01-13

申请号：US17483856

申请日：2021-09-24

Applicant: SoftBank Corp.

Inventor： Hiromichi IMAI ,  Masaru OKADA

IPC: H04B10/116 ,  H04B10/40 ,  H04B10/50

Abstract: A device for communication including a gimbal and a communication unit being rotatably supported by the gimbal and having a communication port for optical wireless communication and an imaging unit for capturing an image in a direction in which the communication port executes optical wireless communication is provided. In addition, a communication device including the device for communication and a communication executing unit for executing optical wireless communication using the communication port is provided.

公开(公告)号：US20210409333A1

公开(公告)日：2021-12-30

申请号：US17146506

申请日：2021-01-12

Applicant: SoftBank Corp.

Inventor： Brian Barritt ,  Paul Heninwolf ,  Erik Kline

IPC: H04L12/801

Abstract: A method for managing nodes of a network includes receiving location information from each of a plurality of nodes in a network, where at least one node is moving relative to another node of the network. The method then includes converting the received location information for each node into a corresponding network address. The corresponding network address is based on a hierarchical cell-based partitioning scheme. The method further includes identifying a target region for a given node of the network based on a plurality of routing paths. The target region encompasses two or more nodes in the network that are next hops for the given node and that have a common segment in the corresponding network addresses. The method then includes sending forwarding rules to one or more nodes in the network. The forwarding rules includes the common segment to identify the next hops for the given node.

公开(公告)号：US11178550B2

公开(公告)日：2021-11-16

申请号：US17016552

申请日：2020-09-10

Applicant: SoftBank Corp.

Inventor： Brian Barritt ,  Daniel Holle

IPC: H04W4/00 ,  H04W16/14 ,  H04W84/06 ,  H04B7/185 ,  H04M1/724 ,  H04M1/72403

Abstract: A multi-tenant system is provided for coordinating spectrum allocation of a plurality of high-altitude networks (HANs) so that at least one high-altitude platform (HAP) in one of the plurality of HANs is controlled to avoid interfering with a HAP in at least one other HAN of the plurality of HANs. The multi-tenant system comprises a database including: 1) a first interface, 2) a second interface, 3) at least one service module, and 4) a data storage device. The multi-tenant system further comprises a communication controller coupled to the database, the communication controller configured to control various characteristics of HAPs in their respective HANs and links therebetween based on data maintained in the data storage device of the database. The data includes regulatory and coordination constraints provided via the first interface and non-regulatory and external coordination information provided via the second interface.

公开(公告)号：US11165621B2

公开(公告)日：2021-11-02

申请号：US16959694

申请日：2018-12-21

Applicant: SoftBank Corp.

Inventor： Mitsukuni Konishi ,  Atsushi Nagate ,  Yoshichika Ota ,  Kenji Hoshino

IPC: H04L27/26 ,  H04B7/185 ,  H04W84/06

Abstract: In a mobile communication system using a mobile-type radio relay apparatus that forms a plurality of cells toward the ground or the sea while moving in an upper airspace, a deterioration in communication quality, which is caused by a Doppler shift of a reception signal due to a relative movement of a radio relay apparatus with respect to a terminal apparatus of each of a plurality of cells or a feeder station on the ground or on the sea, is suppressed. The communication system comprises a mobile-type radio relay apparatus that is disposed movably by flying in an upper airspace, forms a plurality of cells from an antenna at a predetermined altitude toward the ground or the sea, and performs a radio communication with a terminal apparatus located in each of the plurality of cells. The communication system comprises an estimation section for estimating a Doppler shift in at least one of a radio communication of a service link between the terminal apparatus located in the cell and the radio relay apparatus and a radio communication of a feeder link between the radio relay apparatus and a feeder station on the ground or on the sea, and a correction section for correcting a frequency of the at least one radio communication based on an estimation result of the Doppler shift.

公开(公告)号：US20210050910A1

公开(公告)日：2021-02-18

申请号：US16966227

申请日：2019-01-22

Applicant: SoftBank Corp.

Inventor： Kazuki Matsuura ,  Yoshichika Ota

IPC: H04B7/185 ,  H04W24/08 ,  H04W72/04

Abstract: A radio relay apparatus, which can monitor a status of a radio relay apparatus for realizing a three-dimensional network, without providing a dedicated line, is provided. The radio relay apparatus can fly and move in an upper airspace, and comprises a first antenna for transmitting and receiving a radio signal of a feeder link to and from a gateway station on a communication network side provided on the ground or on the sea, a second antenna for transmitting and receiving a radio signal of a service link to and from a terminal apparatus, a relay processing section for relaying the radio signal of the feeder link and the radio signal of the service link, which is provided between the first antenna and the second antenna, an information acquisition section for acquiring monitoring information on the status of the radio relay apparatus, and an information communication section for transmitting the monitoring information to the gateway station via the feeder link.

公开(公告)号：US10862614B2

公开(公告)日：2020-12-08

申请号：US16072249

申请日：2017-01-25

Applicant: SoftBank Corp.

Inventor： Daigo Ogata ,  Atsushi Nagate ,  Teruya Fujii

IPC: H04L1/00 ,  H04W16/32 ,  H04L1/16 ,  H04L5/00 ,  H04L1/18 ,  H04W28/04 ,  H04J11/00 ,  H04L27/26 ,  H04W72/04 ,  H04W72/08 ,  H04B7/0413

Abstract: A base station apparatus capable of preventing occurrence of a communication delay when performing an inter-cell interference control using an ABS is provided. The base station apparatus is capable of performing an inter-cell interference control by setting an ABS pattern with one cycle of a predetermined number of subframes, and when the ABS pattern is to be switched, changes an MCS (Modulation and Coding Scheme) index value to be determined by an adaptive modulation control, for a communication within a predetermined period of time on or before a switching time of the switching, with respect to a subframe in which a communication with a mobile station apparatus is allowed before switching the ABS pattern.

公开(公告)号：US10666502B2

公开(公告)日：2020-05-26

申请号：US16091580

申请日：2017-04-06

Applicant: NEC Corporation ,  SoftBank Corp.

Inventor： Shigetaka Togo ,  Ryo Nishibori

IPC: H04L12/24 ,  H04L29/04 ,  H04L29/14 ,  H04L12/707 ,  H04L12/18 ,  H04L12/26 ,  H04L12/939

Abstract: A communication apparatus (10) according to the present disclosure includes a transmitting unit (11) configured to transmit a packet to a communication apparatus (20) at the other end through a communication line (31), a transmitting unit (12) configured to transmit a packet to the communication apparatus (20) at the other end through a communication line (32), a packet generation unit (13) configured to generate a plurality of packets by duplicating a packet, a monitoring unit (15) configured to monitor communication states of the communication lines (31, 32), and a control unit (14) configured to determine to transmit two or more of the plurality of duplicated packets to the communication apparatus (20) at the other end by using at least one of the communication lines (31, 32) according to the communication states.

公开(公告)号：US10321323B2

公开(公告)日：2019-06-11

申请号：US15522013

申请日：2014-11-07

Applicant: SoftBank Corp.

Inventor： Teruya Fujii

IPC: H04W4/00 ,  H04W16/04 ,  H04W16/32 ,  H04W28/16 ,  H04W72/04 ,  H04W84/04

Abstract: Mobile communication systems and radio resource control methods are provided, by which interference between two or more base stations can be suppressed and an inter-cell adjusting control of radio resources for each of the two or more base stations can be simplified in a mobile communication system including two or more base stations, at least a part of each cell of the base stations being mutually overlapped. Two or more cell layers are configured by grouping the two or more base station. An inter-cell adjusting control of radio resources (for example, at least one of a synchronization control of time slots and an allocation control of time slots) between the two or more cell layers is performed. An inter-cell adjusting control of radio resources between two or more base stations included in the cell layer (for example, at least one of a synchronization control of time slots and an allocation control of time slots) for each of the cell layers is also performed.

公开(公告)号：US10104225B2

公开(公告)日：2018-10-16

申请号：US15126026

申请日：2014-04-02

Applicant: SoftBank Corp.

Inventor： Liang Zhang ,  Takao Okamawari ,  Teruya Fujii

IPC: H04W24/00 ,  H04M3/22 ,  H04M1/24 ,  H04M3/26

Abstract: Communication systems and communication methods capable of evaluating a voice quality in a voice communication of a communication network and a presence or absence of a call drop of the voice communication are provided. A voice communication of transceiving a test signal for voice communication quality evaluation between a communication terminal apparatus 100 and a voice communication evaluation system 400 via the communication network 300 is performed. A voice quality evaluation value is calculated based on the test signal before transmission and the test signal after reception in the voice communication. A presence or absence of a call drop of the voice communication is determined based on a presence or absence of reception interruption of the test signal.

公开(公告)号：US09961525B2

公开(公告)日：2018-05-01

申请号：US14829601

申请日：2015-08-18

Applicant: SoftBank Corp.

Inventor： Junichi Miyakawa ,  Teruaki Suzuki ,  Hoshito Ueyama ,  Takayuki Nihei ,  Kenji Yokota ,  Riri Nomoto ,  Tomomi Nakagawa

IPC: H04M11/04 ,  H04W4/22 ,  H04W76/02 ,  H04L12/851 ,  H04W4/24 ,  H04B7/155 ,  H04W84/22 ,  H04W88/04 ,  H04W76/00 ,  H04W84/18

CPC classification number: H04W4/90 ,  H04B7/15507 ,  H04L47/24 ,  H04W4/24 ,  H04W76/14 ,  H04W76/50 ,  H04W84/18 ,  H04W84/22 ,  H04W88/04

Abstract: Communication becomes impossible for many mobile stations when a communication failure occurs in a fixed station while the mobile stations are operating in an infrastructure mode. Provided is a communication system that includes a plurality of mobile stations and at least one of a base station and a wireless LAN access point, wherein the plurality of mobile stations establish communication with each other and form an ad hoc network that realizes a mesh network topology, and at least one mobile station among the plurality of mobile stations establishes communication with at least one of the base station and the wireless LAN access point, and connects another mobile station among the plurality of mobile stations to the at least one of the base station and the wireless LAN access point using a tethering function.