公开(公告)号：USD1061486S1

公开(公告)日：2025-02-11

申请号：US29851272

申请日：2022-08-26

Applicant: Space Exploration Technologies Corp.

Designer： Jackson Shaffner ,  Anthony Sims ,  Michael J. Conte ,  Victor Q. Dang ,  David Milroy ,  Duncan Edwin Adams

公开(公告)号：US20250019395A1

公开(公告)日：2025-01-16

申请号：US18900240

申请日：2024-09-27

Applicant: Space Exploration Technologies Corp.

Inventor： Eric Pepin ,  Kim W. Schulze ,  Amir Agah ,  Dean A. De Carli ,  Philippe Riondet

IPC: C07K1/36

Abstract: Systems, methods, and computer-readable media are provided for hybrid beamforming. An example method can include determining a plurality of digital beamforming weights associated with a plurality of digital beamforming paths between digital beamformers and groups of analog beamforming circuits in a phased array antenna, each digital beamforming path being coupled to a group of analog beamforming circuits and each analog beamforming circuit being coupled to a respective set of antenna elements of the phased array antenna, and determining analog beamforming weights associated with the groups of analog beamforming circuits. The analog beamforming weights are estimated to put analog beamforming paths associated with the groups of analog beamforming circuits in a desired phase and gain relationship with each other. The method can include varying, based at least partly on the analog beamforming weights, a signal phase shift across the analog beamforming paths associated with the groups of analog beamforming circuits.

公开(公告)号：US12166282B2

公开(公告)日：2024-12-10

申请号：US18216415

申请日：2023-06-29

Applicant: Space Exploration Technologies Corp.

Inventor： Javier Rodriguez De Luis ,  Nil Apaydin ,  Ersin Yetisir ,  Alireza Mahanfar ,  Siamak Ebadi

IPC: H01Q1/38 ,  H01Q3/26 ,  H01Q21/00

Abstract: An apparatus includes a plurality of conductive structures having first sides and second sides opposite the first sides, wherein the second sides of the plurality of conductive structures are configured to be physically coupleable with a printed circuit board (PCB) of a receiver, a transmitter, or a transceiver. The first sides of the plurality of conductive structures are configured to be spaced from the PCB by a first distance when the plurality of conductive structures is physically coupled with the PCB. The apparatus includes an antenna having a first side and a second side opposite the first side. The second side of the antenna is disposed closer to the plurality of conductive structures than the first side of the antenna when the plurality of conductive structures is physically coupled with the PCB.

公开(公告)号：US12088398B1

公开(公告)日：2024-09-10

申请号：US17186627

申请日：2021-02-26

Applicant: Space Exploration Technologies Corp.

Inventor： Martin S. McCormick ,  Torbjorn Larsson ,  Alazar Tamrat ,  Jeffrey C. Strait ,  Chen Chen ,  Philip J. Treigherman ,  Stephan O. Roche ,  Ronald Gottula

IPC: H04B7/185 ,  H04L5/00 ,  H04L25/02 ,  H04L27/00 ,  H04L27/26

CPC classification number: H04B7/18513 ,  H04B7/18517 ,  H04L5/001 ,  H04L25/0202 ,  H04L27/0014 ,  H04L27/2636 ,  H04L2027/0026

Abstract: A modem is configurable on a satellite, user terminal or gateway generates a radio frequency (RF) signal using an orthogonal frequency division multiplexing (OFDM) protocol including a radio frame including one or more bursts. A burst of the one or more bursts includes a first portion including burst detection data, a second portion including channel characteristic estimation data, a third portion including payload data, and fourth and fifth portions including pilot data. The first portion in a time domain is included in the burst prior to the second, third, fourth, and fifth portions. The first portion can include a pseudo-random noise sequence inserted in the time domain. The same physical modem can be configured to transmit signals on an uplink or downlink between a user terminal and a satellite or on the uplink or downlink between the satellite and the gateway.

公开(公告)号：US12074683B1

公开(公告)日：2024-08-27

申请号：US17186706

申请日：2021-02-26

Applicant: Space Exploration Technologies Corp.

Inventor： Martin S. McCormick ,  Torbjorn Larsson ,  Alazar Tamrat ,  Jeffrey C. Strait ,  Chen Chen ,  Philip J. Treigherman ,  Stephan O. Roche ,  Ronald Gottula

IPC: H04B7/185 ,  H04L5/00 ,  H04W72/0453

CPC classification number: H04B7/18513 ,  H04L5/0048 ,  H04W72/0453

Abstract: A modem is configurable on a satellite, user terminal or gateway generates a radio frequency (RF) signal using an orthogonal frequency division multiplexing (OFDM) protocol including a radio frame including one or more bursts. A burst of the one or more bursts includes a first portion including burst detection data, a second portion including channel characteristic estimation data, a third portion including payload data, and fourth and fifth portions including pilot data. The first portion in a time domain is included in the burst prior to the second, third, fourth, and fifth portions. The first portion can include a pseudo-random noise sequence inserted in the time domain. The same physical modem can be configured to transmit signals on an uplink or downlink between a user terminal and a satellite or on the uplink or downlink between the satellite and the gateway.

公开(公告)号：US20240213652A1

公开(公告)日：2024-06-27

申请号：US18435899

申请日：2024-02-07

Applicant: Space Exploration Technologies Corp.

Inventor： Erik N. Littleton ,  Duncan Edwin Adams

IPC: H01Q1/12 ,  F16M11/12 ,  F16M11/18 ,  H01Q3/08

CPC classification number: H01Q1/125 ,  F16M11/126 ,  F16M11/18 ,  H01Q3/08

Abstract: In one embodiment of the present disclosure, a pan/tilt assembly for an antenna apparatus having a housing enclosing antenna components and a leg extending from the housing includes a first actuator for rotating a first gear, a second actuator for rotating a second gear, a third gear coupled to the leg and engaged by the first and second gears, and a tee having a first portion substantially transverse to a second portion, wherein the first portion has a first end rotatably received within the first gear and a second end rotatably received within the second gear, and wherein the second portion is rotatably received within the third gear.

公开(公告)号：US11924821B1

公开(公告)日：2024-03-05

申请号：US17339860

申请日：2021-06-04

Applicant: Space Exploration Technologies Corp.

Inventor： Peter J. Worters ,  Martin S. McCormick ,  Andrew G. Whitlow

IPC: H04W72/121 ,  H04B7/185 ,  H04L5/16 ,  H04W56/00 ,  H04W72/1273

CPC classification number: H04W72/121 ,  H04B7/18513 ,  H04L5/16 ,  H04W56/0045 ,  H04W56/0055 ,  H04W72/1273

Abstract: Systems, methods, and non-transitory media are provided for timing half-duplex transmissions in a wireless communication system. An example method can include receiving, by a user terminal (UT), a radio frame transmitted by a satellite to a group of UTs; identifying an offset delay defined in the radio frame for scheduling transmissions between the satellite and each UT in the group of UTs, the offset delay providing non-overlapping time intervals for receive, process, and transmit operations at each UT; determining, based on the offset delay and a time when the radio frame was received by the UT, a time for transmitting an uplink radio burst to the satellite, wherein the uplink radio burst transmitted at the time is estimated to arrive at the satellite within a same radio frame interval as uplink radio bursts from other UTs; and transmitting, to the satellite, the uplink radio burst at the time.

公开(公告)号：US20240040601A1

公开(公告)日：2024-02-01

申请号：US18486035

申请日：2023-10-12

Applicant: Space Exploration Technologies Corp.

Inventor： Jayasuryan V. Iyer ,  Yashodhan Dandekar ,  Khasim Shaheed Shaik Mahammad ,  Ramakrishna Akella ,  Chen Chen ,  Phillip E. Barber ,  Peter J. Worters

IPC: H04W72/54 ,  H04B17/382 ,  H04B17/336 ,  H04L1/00 ,  H04W72/21

CPC classification number: H04W72/54 ,  H04B17/382 ,  H04B17/336 ,  H04L1/0009 ,  H04L1/0003 ,  H04W72/21

Abstract: A method for downlink link adaptation includes receiving, from a satellite and at a user terminal, a first data packet data unit according to a first downlink modulation and coding scheme (MCS), computing error vector magnitude data associated with the first data packet data unit, generating, based on one or more of the error vector magnitude data, user terminal signal-to-noise-ratio feedback based on a constant times a previous user terminal signal-to-noise-ratio and a current user terminal signal-to-noise-ratio, and transmitting an uplink packet data unit having a downlink block error rate and the user terminal signal-to-noise-ratio feedback. A satellite runs a link adaptation algorithm based on the user terminal signal-to-noise-ratio feedback and block error rate to generate a second downlink MCS. The method includes receiving at the user terminal a second data packet data unit according to the second downlink MCS for the satellite-to-user-terminal downlink. Uplink link adaptation is also disclosed.

公开(公告)号：US20240039594A1

公开(公告)日：2024-02-01

申请号：US18378095

申请日：2023-10-09

Applicant: Space Exploration Technologies Corp.

Inventor： Alireza Mehrnia ,  Masoud Kahrizi ,  Ka Shun Carson Pun ,  Omid Nasiby ,  Alex Ahmad Mirzaei

IPC: H04B7/06 ,  H04W72/044 ,  H04B7/08

CPC classification number: H04B7/0617 ,  H04W72/046 ,  H04B7/0837

Abstract: In an embodiment, an apparatus includes one or more electrical components. The one or more electrical components are configured to encode each data beam of a first plurality of data beams of a first channel to generate an encoded first plurality of data beams. The one or more electrical components are configured to encode each data beam of a second plurality of data beams of a second channel to generate an encoded second plurality of data beams. The one or more electrical components are configured to generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.

公开(公告)号：US11888230B1

公开(公告)日：2024-01-30

申请号：US17825993

申请日：2022-05-26

Applicant: Space Exploration Technologies Corp.

Inventor： Anders Jensen ,  Jinfay Yuan ,  Sean Holt ,  Samuel T. Reineman

IPC: H01Q19/19 ,  H01Q13/02

CPC classification number: H01Q19/193 ,  H01Q13/02

Abstract: In one embodiment, a parabolic antenna assembly includes a main reflector, a feed system in RF communication with the main reflector including a horn and a dielectric portion, and a sub-reflector in RF communication with the feed assembly, wherein the sub-reflector includes a body portion and a stem portion mechanically coupled to one another, wherein a reflecting surface of the sub-reflector is defined by at least a portion of the body portion and at least a portion of the stem portion, wherein the dielectric portion spaces the sub-reflector from the horn, and wherein the sub-reflector includes an axially-symmetric choke for providing virtual continuity at the reflecting surface.