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1.发明授权公开(公告)号：US11576058B2
公开(公告)日：2023-02-07
申请号：US17232230
申请日：2021-04-16
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Erik Stauffer , Jibing Wang
Abstract: A high-altitude platform (HAP) node provides communication service during an emergency. The HAP node uses a first network to provide communication services for handling calls initiated by at least one user equipment (UE). The HAP node detects that an emergency disruption has occurred that prevents the use of the first network. In response to detecting the occurrence of the emergency disruption, a mobile terminal (MT) in the HAP node searches for a second network able to accept emergency calls. The HAP node determines whether the second network will handle all calls initiated by the at least one UE or only emergency calls generated by the at least one UE. The HAP node handles the calls based on the determining and through the use of the second network.
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2.发明授权公开(公告)号：US11482778B2
公开(公告)日：2022-10-25
申请号：US17232213
申请日：2021-04-16
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Cyrus Behroozi , Nevin Morris
Abstract: A method and apparatus are provided for nulling a radio frequency (RF) beam for a high-altitude platform (HAP). A transmitter generates an RF signal. A primary antenna system generates an RF beam based on the RF signal. One or more processors determine a result indicating whether to modify the RF beam. When the result indicates to modify the RF beam, a detachable nulling subassembly generates nulling signals based on the RF signal to modify the RF beam generated by the primary antenna system.
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公开(公告)号：US11362425B2
公开(公告)日：2022-06-14
申请号：US16223935
申请日：2018-12-18
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Alfred Cohen
IPC: H01Q9/04 , H01Q21/24 , H01Q21/28 , H04B10/50 , H04B10/532
Abstract: The disclosure provides for a system for communication with a client device. The system includes a first transmitter configured to transmit a first signal and a second transmitter configured to transmit a second signal. The first signal is configured for a first communication band, and the second signal is configured for a second communication band different from the first communication band. The system also includes a hybrid coupler configured to split the first or second signal to a first part and a second part. In addition, the system also includes a first antenna configured to transmit the first part, and a second antenna configured to transmit the second part. The second antenna is oriented perpendicularly relative to an orientation of the first antenna.
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公开(公告)号：US11349558B2
公开(公告)日：2022-05-31
申请号：US17121168
申请日：2020-12-14
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Cyrus Behroozi , Sergey Vichik
Abstract: Aspects of the disclosure provide an antenna system for a high-altitude platform (HAP). The antenna system may include a central panel including a first set of antenna elements. The antenna system may also include a plurality of auxiliary panels arranged around the central panel and at an angular offset from the central panel. Each auxiliary panel of the set of auxiliary panels may include a second plurality of antenna elements. The first plurality of antenna elements may be configured to provide network coverage within a first area having a first radius and each of the second sets of antenna elements are configured to provide network coverage within a second area beyond the first radius.
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Patent Agency Ranking
公开(公告)号：US11337080B1
公开(公告)日：2022-05-17
申请号：US16221920
申请日：2018-12-17
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Mitchell Trott , Paul Heninwolf
IPC: H04W16/28 , H04B7/06 , H04B7/0408 , H04W36/30 , H04W72/04
Abstract: The disclosure provides for a communication system. The communication system includes a station moving relative to a geographic area, a plurality of antennas, and one or more processors configured to control the plurality of antennas. For instance, the one or more processors may be configured to control a first antenna of the plurality of antennas to output a primary beam to cover the geographic area, wherein the primary beam is associated with a primary cell having a first center frequency, and to control a second set of antennas of the plurality of antennas to output a plurality of secondary beams to cover a plurality of locations within the geographic area, wherein the plurality of secondary beams each has a beam angle smaller than the primary beam, and wherein the plurality of secondary beams are all associated with a secondary cell having a second center frequency.
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公开(公告)号：US11234141B2
公开(公告)日：2022-01-25
申请号：US16998102
申请日：2020-08-20
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Jin Zhang
Abstract: The disclosure provides a method of operating a communication network. The method includes receiving input data related to a state of the communication network and determining an implementation policy for the communication network based on the input data. The implementation policy is a set of features for forming one or more communication links in the communication network over a time interval. The one or more communication links includes at least one communication link between a terrestrial terminal and a high-altitude platform terminal. Determining the implementation policy is based at least in part on utility values of previous policies. The utility values of previous policies are derived using simulation and/or real-world implementation of the previous policies. The communication network is then operated to implement the implementation policy in the time interval.
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公开(公告)号：US11201399B2
公开(公告)日：2021-12-14
申请号：US16950539
申请日：2020-11-17
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Pascal Stang
Abstract: Systems, methods, and computer-readable media for receiver channel calibration are provided. The method includes generating a plurality of calibration signals corresponding to a plurality of receiver channels, respectively. The plurality of calibration signals are combined with a plurality of data signals, respectively, thereby generating a plurality of combined signals. The plurality of combined signals are propagated through at least portions of the plurality of receiver channels, respectively. The plurality of calibration signals are extracted from the propagated plurality of combined signals, respectively. At least two signal characteristics of at least two of the extracted plurality of calibration signals are compared. At least one adjustment in gain, phase, or timing for at least one of the receiver channels is identified based on a result of the comparing. Based on the identified adjustment, a data signal received via the at least one of the plurality of receiver channels is adjusted.
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公开(公告)号：US11456521B2
公开(公告)日：2022-09-27
申请号：US16838077
申请日：2020-04-02
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Paul Heninwolf , Simon Scott
Abstract: A method and an antenna system are provided for a high-altitude platform (HAP) configured to move in a pattern in the stratosphere to provide coverage to a region of interest and compensate for HAP movement relative to the region of interest. HAP movement is monitored. When it is determined that the HAP has moved relative to the region of interest and, based on the relative movement, a first one of a plurality of antennas in the HAP is no longer able to cover a selected portion of the region of interest, an antenna array switching circuit in the HAP is used to adjust beams transmitted by the antennas by switching to a second one of the plurality of antennas to cover the selected portion of the region of interest, such that the communication services provided to the region of interest are not interrupted due to the movement of the HAP.
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公开(公告)号：US11245194B1
公开(公告)日：2022-02-08
申请号：US17029904
申请日：2020-09-23
Applicant: SoftBank Corp.
Inventor： Sharath Ananth , Paul Heninwolf , Jean-Laurent Plateau
Abstract: An antenna for wireless communication includes a spherical reflector and one or more feeds. The spherical reflector includes an inner portion made of material that reflects radiofrequency (RF) beams, and an outer portion positioned on an edge of the inner portion, the outer portion being made of metamaterials that can be controlled to be reflective of or transparent to RF beams. The one or more feeds are configured to form one or more RF beams reflected off the spherical reflector. In some implementations, the antenna includes one or more processors configured to form one or more RF beams using the one or more feeds, and control at least a part of the outer portion of the spherical reflector to reflect an RF beam of the one or more RF beams or be transparent to the RF beam based on the one or more RF beam.
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