Patents Assigned to Softbank Corp.
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Patent number: 10785738Abstract: 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.Type: GrantFiled: January 30, 2017Date of Patent: September 22, 2020Assignee: SoftBank Corp.Inventors: Shota Shiobara, Takao Okamawari, Teruya Fujii
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Patent number: 10771555Abstract: A relay device is provided that is provided on a first network hierarchy level and relays communications via a network hierarchy level higher than the first level, between a plurality of nodes subordinate to the relay device and a sales broker website, and includes: an application storage unit storing a sales broker application; and an application execution unit executing the sales broker application to cause the relay device to function as: an order data reception unit receiving order data including a plurality of contents; a first order data transmission unit transmitting the order data to the sales broker website; and a second order data transmission unit transmitting, when an order receiver node receiving an order for the product is any of the plurality of nodes, at least a part of the plurality of contents to the order receiver node without involving a level higher than the first level.Type: GrantFiled: September 13, 2019Date of Patent: September 8, 2020Assignee: SoftBank Corp.Inventors: Kazuma Tomimoto, Masayuki Miyashita, Manabu Mikami, Ryo Yamaguchi, Hitoshi Yoshino
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Patent number: 10707949Abstract: 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.Type: GrantFiled: January 26, 2017Date of Patent: July 7, 2020Assignee: SoftBank Corp.Inventors: Shota Shiobara, Takao Okamawari, Teruya Fujii
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Patent number: 10666502Abstract: 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.Type: GrantFiled: April 6, 2017Date of Patent: May 26, 2020Assignees: NEC CORPORATION, SoftBank Corp.Inventors: Shigetaka Togo, Ryo Nishibori
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Patent number: 10659965Abstract: A communication terminal apparatus, a terrestrial cellular base station and a mobile communication system are provided, which are capable of being shared in a terrestrial cellular mobile communication system and a satellite mobile communication system, preventing an interference between both systems and improving a spectral efficiency in a downlink of the terrestrial cellular mobile communication system, by simple switching control of radio resources. When the communication terminal apparatus is located in an area of the terrestrial cellular mobile communication system, all of time slots allocated to the terrestrial cellular mobile communication system and at least a part of time slots allocated to the satellite mobile communication system are used in a downlink, and all of time slots allocated to the terrestrial cellular mobile communication system are used and time slots allocated to the satellite mobile communication system are not used in an uplink.Type: GrantFiled: January 31, 2017Date of Patent: May 19, 2020Assignee: SoftBank Corp.Inventor: Teruya Fujii
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Patent number: 10651922Abstract: A communication system capable of realizing a three-dimensional network of the fifth generation mobile communication with low propagation delay in a radio communication is provided. The communication system comprises a radio relay station that relays a radio communication with the terminal apparatus. The radio relay station is provided in a floating object that is controlled so as to be located in a floating airspace with an altitude of 100 [km] or less by an autonomous control or an external control. When the floating object is located in the floating airspace, the radio relay station forms a three-dimensional cell in a predetermined cell-formation target airspace between the floating object and a ground level or a sea level.Type: GrantFiled: March 17, 2018Date of Patent: May 12, 2020Assignee: SoftBank Corp.Inventors: Junichi Miyakawa, Kiyoshi Kimura
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Publication number: 20200119805Abstract: A highly robust communication system capable of stably realizing a three-dimensionalized network over a wide area can be provided, in which a propagation delay is low, a simultaneous connection with a large number of terminals in a wide-range area and a high-speed communication can be performed, and a system capacity per unit area is large, in radio communications with terminal apparatuses including devices for the IoT, in mobile communications of the fifth generation or the like. The communication system comprises a plurality of radio relay for relaying a radio communication between a terrestrial base station and a terminal apparatus.Type: ApplicationFiled: April 24, 2018Publication date: April 16, 2020Applicant: SoftBank Corp.Inventors: Junichi Miyakawa, Kiyoshi Kimura
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Publication number: 20200028570Abstract: A communication system capable of realizing a three-dimensional network of the fifth generation mobile communication with low propagation delay in a radio communication is provided. The communication system comprises a radio relay station that relays a radio communication with the terminal apparatus. The radio relay station is provided in a floating object that is controlled so as to be located in a floating airspace with an altitude of 100 [km] or less by an autonomous control or an external control. When the floating object is located in the floating airspace, the radio relay station forms a three-dimensional cell in a predetermined cell-formation target airspace between the floating object and a ground level or a sea level.Type: ApplicationFiled: March 17, 2018Publication date: January 23, 2020Applicant: SoftBank Corp.Inventors: Junichi Miyakawa, Kiyoshi Kimura
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Patent number: 10531337Abstract: Communication quality of a terminal device which directly connects to a macro cell base station is guaranteed and communication quality of a terminal device which connects to the macro cell base station via a relay apparatus is guaranteed.Type: GrantFiled: January 25, 2017Date of Patent: January 7, 2020Assignee: SOFTBANK CORP.Inventors: Takayuki Yoshimura, Masahiko Nanri, Masanori Nomachi, Takanori Takii, Jumpei Takagi
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Patent number: 10484077Abstract: Beamforming for radio communication (uplink) from a relay apparatus to a donor base station is performed accurately.Type: GrantFiled: December 14, 2016Date of Patent: November 19, 2019Assignee: SOFTBANK CORP.Inventors: Takayuki Yoshimura, Masahiko Nanri, Masanori Nomachi, Takanori Takii, Jumpei Takagi
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Patent number: 10454507Abstract: 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.Type: GrantFiled: July 29, 2016Date of Patent: October 22, 2019Assignee: SOFTBANK CORP.Inventor: Masanori Nomachi
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Patent number: 10448452Abstract: A mobile body communication system includes: a home base station that controls radio communication with a mobile unit; a macro cell base station that controls radio communication with one or more mobile units and radio communication with the home base station; and a quality control server QCS that is connected to the macro cell base station and manages communication quality between the macro cell base station and the home base station, wherein the quality control server QCS: additionally generates a session between the home base station and the macro cell base station when receiving a session generation request from the home base station; and releases the session between the home base station and the macro cell base station when receiving a session release request from the home base station. Communication quality in a radio network between the mobile unit(s) and the macro cell base station can be guaranteed.Type: GrantFiled: December 22, 2015Date of Patent: October 15, 2019Assignee: SOFTBANK CORP.Inventors: Yukitoshi Watabe, Manabu Shindachiya, Yosuke Komiyama, Satoshi Watanabe
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Patent number: 10349322Abstract: A base station apparatus is provided, by which a downlink transmission power 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 base station communicating with a mobile station in a mobile communication network, and provided with control means of controlling so as to decrease a setting of downlink transmission power when changing a setting of offset for handover from the own cell to a neighboring cell so as to advance a hand-out from the own cell to the neighboring cell.Type: GrantFiled: December 4, 2015Date of Patent: July 9, 2019Assignee: SoftBank Corp.Inventors: Masahiko Nanri, Yuichi Hayashi
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Patent number: 10321323Abstract: 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.Type: GrantFiled: November 7, 2014Date of Patent: June 11, 2019Assignee: SoftBank Corp.Inventor: Teruya Fujii
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Publication number: 20190174373Abstract: A base station, a mobile communication system and a handover control method are provided, which are capable of preventing a handover failure and a ping-pong handover phenomenon which are caused by an interference from a neighboring cell to a serving cell. When a received power difference (S2?S1) between a received power S2 from a neighboring second base station, which is fed back from a mobile station, and a received power S1 from first base station, becomes larger than a predetermined threshold value, the first base station to which the mobile station is connected requests the second base station to stop a transmission of a downlink signal including at least one of a data signal and a control signal. In response to the transmission-stop request, the second base station performs a determination of a radio resource in which the transmission of the downlink signal is to be stopped and a notification of the radio resource to the first base station, and stops a transmission of a downlink signal.Type: ApplicationFiled: March 3, 2017Publication date: June 6, 2019Applicant: SoftBank Corp.Inventors: Noboru Kanazawa, Daigo Ogata, Atsushi Nagate, Teruya Fujii
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Publication number: 20190165994Abstract: 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.Type: ApplicationFiled: April 6, 2017Publication date: May 30, 2019Applicants: NEC Corporation, SoftBank Corp.Inventors: Shigetaka TOGO, Ryo NISHIBORI
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Publication number: 20190089453Abstract: 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.Type: ApplicationFiled: January 26, 2017Publication date: March 21, 2019Applicant: SoftBank Corp.Inventors: Shota Shiobara, Takao Okamawari, Teruya Fujii
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Publication number: 20190090141Abstract: A communication terminal apparatus, a terrestrial cellular base station and a mobile communication system are provided, which are capable of being shared in a terrestrial cellular mobile communication system and a satellite mobile communication system, and preventing an interference between beams in a satellite mobile communication system while preventing an interference between both systems by a simple switching control of radio resources. Time slots of radio resources are allocated so as not to overlap with each other between the terrestrial cellular mobile communication system and the satellite mobile communication system and so as not to overlap with each other between adjacent beams corresponding to each of two or more beams of the satellite mobile communication system.Type: ApplicationFiled: January 31, 2017Publication date: March 21, 2019Applicant: SoftBank Corp.Inventor: Teruya Fujii
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Publication number: 20190075468Abstract: A communication terminal apparatus, a terrestrial cellular base station and a mobile communication system are provided, which are capable of being shared in a terrestrial cellular mobile communication system and a satellite mobile communication system, preventing an interference between both systems and improving a spectral efficiency in a downlink of the terrestrial cellular mobile communication system, by simple switching control of radio resources. When the communication terminal apparatus is located in an area of the terrestrial cellular mobile communication system, all of time slots allocated to the terrestrial cellular mobile communication system and at least a part of time slots allocated to the satellite mobile communication system are used in a downlink, and all of time slots allocated to the terrestrial cellular mobile communication system are used and time slots allocated to the satellite mobile communication system are not used in an uplink.Type: ApplicationFiled: January 31, 2017Publication date: March 7, 2019Applicant: SoftBank Corp.Inventor: Teruya Fujii
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Publication number: 20190075535Abstract: 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.Type: ApplicationFiled: January 30, 2017Publication date: March 7, 2019Applicant: SoftBank Corp.Inventors: Shota Shiobara, Takao Okamawari, Teruya Fujii