公开(公告)号：US20200380478A1

公开(公告)日：2020-12-03

申请号：US16635227

申请日：2018-11-01

Applicant: SoftBank Corp.

Inventor： Keita Omori ,  Kohei Kato ,  Eijiro Hoshi

IPC: G06Q20/08 ,  G06F9/54 ,  G06Q20/14 ,  G06Q20/40

Abstract: An API management device includes: a reception unit configured to receive a selection of a charging condition when using an API; a receiver configured to receive a request for the API from the application; a transmitter configured to transmit a response according to the request to the application; and a history storage configured to store a history of the request for the API and the response for each of the applications that use the API. A charging management device includes: a charging condition storage configured to store the charging condition received by the reception unit for each of the applications that use the API when using the API; an acquisition unit configured to acquire information on the history from the history storage; and a determination unit configured to determine a charge value for the application that uses the API based on the charging condition and the information on the history.

公开(公告)号：US10707949B2

公开(公告)日：2020-07-07

申请号：US16078753

申请日：2017-01-26

Applicant: SoftBank Corp.

Inventor： Shota Shiobara ,  Takao Okamawari ,  Teruya Fujii

IPC: H04W28/00 ,  H04B7/155 ,  H04W28/18 ,  H04W72/12 ,  H04J11/00 ,  H04B7/024 ,  H04L5/00 ,  H04W28/16 ,  H04W24/02 ,  H04B1/71 ,  H04W24/10 ,  H04W92/20 ,  H04B7/0452 ,  H04W36/30

Abstract: A communication system, a base station and a communication control method are provided, which are capable of cooperatively transmitting data from a plurality of base stations to a plurality of communication terminals using a same radio resource. A first base station acquires a value of an interference suppression parameter that is applied to a transmission signal from the first base station so as to suppress interference from a second base station in a first communication terminal, when the first communication terminal locates in a cell border area. The second base station duplicates a desired data for a second communication terminal located in a cell of the second base station, and transmits the duplicated desired data to the first base station. The first base station generates a transmission signal based on the value of the interference suppression parameter, the desired data for the first communication terminal, the desired data for the second communication terminal received from the second base station and a control information on data cooperative transmission, and the second base station generates a transmission signal of the desired data for the second communication terminal. Each of the base stations cooperatively transmits the transmission signal at a predetermined data cooperative transmission timing.

公开(公告)号：US20200005234A1

公开(公告)日：2020-01-02

申请号：US16569678

申请日：2019-09-13

Applicant: SoftBank Corp.

Inventor： Kazuma TOMIMOTO ,  Masayuki MIYASHITA ,  Manabu MIKAMI ,  Ryo YAMAGUCHI ,  Hitoshi YOSHINO

IPC: G06Q10/08 ,  H04W4/38 ,  G06K19/077 ,  G06K7/10

Abstract: A system is provided that includes: a first relay device provided on a first network hierarchy level; and a second relay device provided on a second network hierarchy level higher than the first network hierarchy level. The first relay device includes: a first information reception unit that receives target object information about a target object, transmitted by a radio tag attached to the target object in accordance with a predetermined timing; a first information storage unit that stores the target object information received by the first information reception unit; a first change determination unit that determines whether there has been a change in a status of the target object, based on a status of reception of the target object information; and a first information transmission unit that transmits the target object information to the second relay device, when the first change determination unit determines that there has been the change.

公开(公告)号：US10454507B2

公开(公告)日：2019-10-22

申请号：US15312529

申请日：2016-07-29

Applicant: SoftBank Corp.

Inventor： Masanori Nomachi

IPC: H04B1/00 ,  H04B1/401 ,  H04W88/06

Abstract: The communication device includes a switching controller. In a case where the communication band to be used is a second frequency band between a second lower edge frequency and a second upper edge frequency or in a case where the communication band to be used is a first frequency band between a first lower edge frequency and a first upper edge frequency and a frequency of the signal to be used is included in a first passband, the switching controller controls a filter switcher to switch to a first filter. In a case where the communication band to be used is a third frequency band between a third lower edge frequency and a third upper edge frequency or in a case where the communication band to be used is a first frequency band and the frequency of the signal to be used is included in a second passband, the switching controller controls the filter switcher to switch to a second filter. The third lower edge frequency is higher than the second lower edge frequency, and the third upper edge frequency is higher than the second upper edge frequency.

公开(公告)号：US20190075535A1

公开(公告)日：2019-03-07

申请号：US16080331

申请日：2017-01-30

Applicant: SoftBank Corp.

Inventor： Shota Shiobara ,  Takao Okamawari ,  Teruya Fujii

IPC: H04W56/00 ,  H04W16/32

Abstract: A deviation of time at which downlink signals synchronously transmitted from a macro-cell base station and a small-cell base station respectively reach a communication terminal apparatus can be made within an allowable range, without being affected by transmission delay in transmission cables of base station and propagation delay in radio transmission paths. The small-cell base station is provided with a radio transceiving section connected with antenna, a radio communication control section, a transmission cable connected with the radio transceiving section and the radio communication control section, and a downlink signal receiving section for receiving downlink signals transmitted from the macro-cell base station and the own base station respectively. The small-cell base station measures a reception-timing difference of downlink signals transmitted from the macro-cell base station and the own base station based on a reception result of the downlink signal, adjusts a transmission timing of downlink signal of the own base station based on the reception-timing difference, and transmits a downlink signal at the adjusted transmission timing.

公开(公告)号：US10165568B2

公开(公告)日：2018-12-25

申请号：US15406793

申请日：2017-01-16

Applicant: SoftBank Corp. ,  Thaicom Public Company Limited

Inventor： Junichi Miyakawa ,  Yoshihito Shimazaki ,  Akihiko Tajika ,  Isara Amatayakul ,  Sakon Kittivatcharapong

IPC: H04W72/04 ,  H04W84/06 ,  H04B7/185

Abstract: When bandwidth is dynamically allocated for audio communication via satellite communication, newly occurring audio communication can negatively affect the communication quality of the existing audio communication. Provided is a data communication apparatus that communicates via a satellite and includes an allocation control section that allocates in advance, for audio communication via the satellite, a bandwidth that is larger than a bandwidth needed for current audio communication being performed via satellite by at least a predetermined bandwidth. A program causes a computer to function as this data communication apparatus. A satellite communication system includes this data communication apparatus and this satellite.

公开(公告)号：US10091696B2

公开(公告)日：2018-10-02

申请号：US15026685

申请日：2015-12-04

Applicant: SoftBank Corp.

Inventor： Masahiko Nanri ,  Yuichi Hayashi

IPC: H04W36/00 ,  H04W52/40 ,  H04W36/04 ,  H04W52/18 ,  H04L5/00 ,  H04W72/04 ,  H04L12/26 ,  H04W52/34 ,  H04W52/14

Abstract: A base station apparatus is provided, by which a downlink transmission power (transmission output) can be properly set and frequent handovers of a mobile station (user equipment) can be prevented to occur. The base station apparatus is installed in a small-cell base station communicating with a mobile station in a mobile communication network, and provided with measurement means of measuring a time interval between a timing of receiving a handover request from a macro-cell base station when a mobile station performs a hand-in from a macro cell to a small cell and a timing of receiving information showing a failure of handover from the macro cell to the small cell, from the macro-cell base station, in sate that the small-cell base station is located in the macro cell or neighboring the macro cell and control means of controlling so as to decrease a setting of downlink transmission power based on the time interval measured by the measurement means.

公开(公告)号：US09935368B2

公开(公告)日：2018-04-03

申请号：US14767470

申请日：2014-02-13

Applicant: HIWAVE, INC. ,  SOFTBANK CORP.

Inventor： Akihiko Tajika ,  Junichi Miyakawa ,  Yoshihito Shimazaki ,  HaeWoon Lee ,  CheolHoon Lee

IPC: H01Q3/36 ,  H01Q1/12 ,  H01Q9/04 ,  H01Q1/00 ,  H01Q3/24 ,  H01Q21/06 ,  H04B7/02 ,  H04B7/155 ,  H04W24/02 ,  H04W88/08 ,  H04B7/026

CPC classification number: H01Q3/36 ,  H01Q1/005 ,  H01Q1/1271 ,  H01Q3/247 ,  H01Q9/0407 ,  H01Q21/06 ,  H04B7/026 ,  H04B7/1555 ,  H04W24/02 ,  H04W88/08

Abstract: An object of the present invention is to provide an antenna control system and a method capable of consistently maintaining an optimum orientation point between a donor antenna and an adjacent base station. The antenna control system for receiving a signal from a base station includes a donor antenna including an antenna module disposed by being fixed to an inner side of a window glass and configured with an array antenna; a phase shifter including a plurality of transmission lines; and a phase controller configured to control the phase shifter to change an orientation direction of the antenna module; and a repeater including a measuring module for measuring a reception signal received by the antenna module; an analyzing module for analyzing a signal quality parameter in each orientation direction of the antenna module based on a measurement result of the measuring module; and a generating module for generating an antenna control signal for controlling the orientation direction of the antenna module based on an analysis result of the analyzing module.

公开(公告)号：US09780855B2

公开(公告)日：2017-10-03

申请号：US14879102

申请日：2015-10-09

Applicant: SoftBank Corp.

Inventor： Takeo Kanai

IPC: H04B7/06 ,  H01Q3/30 ,  H01Q21/24 ,  H04L1/06 ,  H01Q21/28 ,  H04B7/10

CPC classification number: H04B7/0613 ,  H01Q3/30 ,  H01Q21/24 ,  H01Q21/28 ,  H04B7/10 ,  H04L1/0668

Abstract: Provided is a transmission control apparatus that, at a first transmission timing, causes a first symbol to be transmitted from a first antenna, causes the first symbol having the same phase as the first symbol transmitted from the first antenna to be transmitted from a second antenna that is orthogonal to the first antenna and has a path to a mobile terminal that is the same as a path between the first antenna and the mobile terminal, causes a second symbol to be transmitted from a third antenna arranged parallel to the first antenna, and causes the second symbol having the inverse phase of the second symbol transmitted from the third antenna to be transmitted from a fourth antenna that is orthogonal to the third antenna and has a path to the mobile terminal that is the same as a path between the third antenna and the mobile terminal.

公开(公告)号：US09780852B2

公开(公告)日：2017-10-03

申请号：US14879104

申请日：2015-10-09

Applicant: SoftBank Corp.

Inventor： Takeo Kanai

IPC: H04B7/04 ,  H04B7/10 ,  H04B7/06 ,  H01Q3/30 ,  H01Q21/24

CPC classification number: H04B7/0469 ,  H01Q3/30 ,  H01Q21/24 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/10

Abstract: Provided is a transmission control apparatus that determine a first phase difference for a phase difference between an electric wave output by a first antenna and an electric wave output by a second antenna, and for a phase difference between an electric wave output by a third antenna and an electric wave output by a fourth antenna, based on a determined polarization characteristic; determines a second phase difference for a phase difference between the electric wave output by the first antenna and the electric wave output by the third antenna and for a phase difference between the electric wave output by the second antenna and the electric wave output by the fourth antenna, based on the determined beam direction; and controls phases of the electric waves output by the first to fourth antennas, according to the first and second phase differences.