Patents Assigned to Hughes Networks Systems
  • Variable stayout distance for beamhopping satellite
    Patent number: 11309958
    Abstract: A system and method for scheduling a variable stayout distance when beam hopping, the method including providing an illumination area of a satellite and candidate beam centers disposed in the illumination area; measuring a respective scan angle from an antenna boresight to a respective beam center of the candidate beam centers; and determining a reuse factor k for each of the candidate beam centers, based on a proportion of the respective scan angle to a maximum scan angle. Each candidate beam center may be processed sequentially. Prior to adding each candidate beam center to a current beam center set, checking whether a candidate beam center meets the stayout distance criteria from all beam centers already in the beam center set.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: April 19, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Stanley Kay, Udaya Bhaskar, Neal David Becker
  • Compensating for frequency-dependent I-Q phase imbalance
    Patent number: 11310086
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for compensating for frequency-dependent I-Q imbalance. In some implementations, a radio receiver includes an in-phase mixer configured to generate an in-phase (I) signal and a quadrature mixer configured to generate a quadrature (Q) signal. A first analog-to-digital (A/D) converter is configured to generate first digital samples from one of the I signal and the Q signal. A second analog-to-digital (A/D) converter is configured to generate second digital samples from the other of the I signal and the Q signal. A compensation system includes a feedback loop configured to compensate for frequency-dependent I-Q imbalance based on results, for each of multiple of the first digital samples, of cross-correlation of the first digital sample with each of multiple of the second digital samples.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: April 19, 2022
    Assignee: Hughes Network Systems, LLC
    Inventor: Neal D. Becker
  • Systems and methods of paging in GEO satellite-based 5G networks
    Patent number: 11303352
    Abstract: Systems and methods implementing a satellite radio access network (SRAN) receiving a registration request from a user terminal (UT), determining a current tracking area (TA) of the UT, forwarding the registration request and the current TA to an access and mobility management function (AMF), and receiving a registration accept from the AMF that indicates a UT registration area. An implementation receives a UT page command from the AMF and, in response, determines a satellite beam for paging the UT, from among a plurality of satellite beams using the identifier of the current TA, and pages the UT on the satellite beam.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: April 12, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Channasandra Ravishankar, Gaguk Zakaria
  • Unified memory management for a multiple processor system
    Patent number: 11281583
    Abstract: Various multi-processor unified memory management systems and methods are detailed herein. In embodiments detailed herein, inter-chip memory management modules may be executed by processors that are in communication via an inter-chip link. A flat memory map may be used across the multiple processors of the system. Each inter-chip memory management module may analyze memory transactions. If the memory transaction is directed to a portion of the flat memory map managed by another processor, the memory-transaction may be translated to a non-memory mapped transaction and transmitted via an inter-chip communication link.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: March 22, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Gaurav Bhatia, Daniel C. Hantz, Ashish A. Varhale, Karan Kakkar, Yingquan Cheng, Yogesh Sethi
  • Power control for frequency variation and gateway switching
    Patent number: 11277199
    Abstract: A system and method for managing a transmit power of a terminal includes dividing a spectrum into frequency bins and an inroute layout including inroutes; mapping at least one of the frequency bins with each of the inroute; determining a respective normalized Transmit Power (TP) for each of the frequency bins; calculating a transmission TP based on the respective normalized TP of one or more of the frequency bins mapped to a selected inroute; and transmitting a radio signal with the transmission TP on the selected inroute. A first frequency bin is adjacent a second frequency bin, a respective normalized TP of the first frequency bin compared to a respective normalized TP of the second frequency bin varies no more than a threshold power delta, a count of frequency bins is greater than one and unequal to a count of the inroute layout.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: March 15, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Murali Regunathan, Shivika Pathania
  • BEAMFORMER ACCOUNTING FOR NON-HOMOGENEITY OF OFFERED TRAFFIC DISTRIBUTION AMONG CELLS
    Publication number: 20220077906
    Abstract: A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar ? and a weighted minimum mean squared error (WMMSE) matrix WWMSE; and transmitting/receiving the beams based on the power scalar ? and the WMMSE matrix WWMSE, where the power scalar ? satisfies a total power constraint of an antenna subsystem.
    Type: Application
    Filed: November 16, 2021
    Publication date: March 10, 2022
    Applicant: Hughes Network Systems, LLC
    Inventors: Udaya BHASKAR, Stanley KAY, Neal David BECKER
  • Satellite system including backhaul connection of data centers to gateways
    Patent number: 11271638
    Abstract: A method of and system for designing a satellite network includes selecting an optimal design for a backhaul network to be used as part of the satellite network, selecting a number of radio frequency (RF) gateways for the satellite network, selecting an optimal number of satellite network cores (SNCs) for the satellite network. The method may also include placing each SNC at a site that is geographically separate from locations of the RF gateways, selecting a number of data centers for the satellite network, connecting each SNC to one or more data centers in the satellite network, and connecting each data center to one or more of the RF gateways via the backhaul network.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: March 8, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: David Whitefield, Gregory Marnte Presbury, Robert James Torres, Nimesh Prakash Ambeskar
  • System and methods for spectrum sharing between satellite and terrestrial communication systems
    Patent number: 11272373
    Abstract: A method and system for sharing frequency spectrum with multiple networks includes selecting a first geographical coverage area served by a first base station associated with a first network. The first base station is configured to utilize a predetermined frequency spectrum. A second base station, associated with a different network, that is operating within the first geographical coverage area is identified. Frequency resources from the predetermined are subsequently allocated to the second base station.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: March 8, 2022
    Assignee: Hughes Network Systems, LLC
    Inventor: Channasandra Ravishankar
  • Inter network roaming between independently managed satellite networks
    Patent number: 11272350
    Abstract: Systems and methods are described, and one method includes receiving at a first network a request for a second network configuration data and an identifier of a first network home service plan of the mobile terminal, and transmitting to the second network an inter-network configuration data request. The inter-network configuration data request carries the request for the second network configuration data and an identifier of the mobile terminal's first network home service plan. The first network receives from the second network an inter-network configuration data response that carries the second network configuration data and, in response, transmits the second network configuration data to the mobile terminal.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: March 8, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Rajeev Gautam Oza, George Joseph Choquette, Guy Bryan Montgomery, Suresh Kumar Korada
  • Asynchronous non-orthogonal multiple access in a time/frequency division orthogonal multiple access network
    Patent number: 11251892
    Abstract: Systems and methods are described, and one method includes allocate a continuous duration within a TDMA scheme, for asynchronous NOMA transmissions, and extending from an allocation start time to an allocation termination time, formed of contiguous time slots of the TDMA scheme, and included providing to asynchronous NOMA user terminals an indication of the allocation start time and termination time, indicating allowance to perform asynchronous NOMA transmissions within a start time constraint that starts of the asynchronous NOMA transmissions do not precede the allocation start time, and terminations of the asynchronous NOMA transmissions do not succeed the allocation termination time.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: February 15, 2022
    Assignee: Hughes Network Systems, LLC.
    Inventors: Lin-Nan Lee, Neal D. Becker, Mustafa Eroz
  • Mobile satellite modem for combined geostationary, medium and low earth orbit satellite operation
    Patent number: 11233562
    Abstract: The present teachings include a method and computing apparatus for triggering synchronization of a satellite modem to a carrier frequency of a beam of a satellite, retrieving ephemeris information for the satellite and beam configuration information for the beam, calculating a velocity of the satellite per the ephemeris information, and adjusting the carrier frequency of the satellite modem when communicating via the beam to compensate for a doppler offset induced in the carrier frequency by the velocity. In the method, the satellite has a satellite type selected from a Geosynchronous Earth Orbit (GEO), Medium Earth Orbit (MEO) or Low Earth Orbit (LEO) type of satellite, and the satellite type is different than a satellite type of an immediately preceding synchronization.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: January 25, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Guy Montgomery, George Choquette, Satyajit Roy
  • System and Method for Satellite Communication in a Helicopter
    Publication number: 20220014309
    Abstract: A receiver and a method for receiving a radio communication is disclosed. The method includes receiving a burst encoded with a robust modulation coding scheme (MCS) as RX signals; generating, for each of the RX signals, a burst SNR, soft decision symbols and a packet; weighing, each of soft decision symbols with a respective burst SNR, to calculate soft combined symbols that are used to generate a Maximal-Ratio Combining (MRC) packet; and selecting, from the packets and the MRC packet, a CRC passed packet as an output. An adaptive dual burst transmitter is disclosed.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Applicant: Hughes Network Systems, LLC
    Inventors: James Jehong JONG, Channasandra RAVISHANKAR, William WHITMARSH
  • Base station load balancing
    Patent number: 11223563
    Abstract: A base station receiver is described. The base station receiver may comprise at least one processor and memory. The memory may store instructions executable by the at least one processor. The instructions may include, to: receive, via a time-division multiple access (TDMA) scheme, a first carrier frequency comprising a first burst; receive, via the TDMA scheme, a second carrier frequency comprising a second burst; and demodulate and decode both the first and second bursts using a common demodulating and decoding node (DDN).
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: January 11, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Hanhui Zhang, Xiaoming Wu
  • Method and system of providing second generation (2G) voice services over Internet protocol
    Patent number: 11223666
    Abstract: A system to provide second generation (2G) voice services over internet protocol, the system including: a voice gateway (VGW) including a 2G stack to communicate control plane information and user plane information with a 2G user terminal (UT) via a circuit-switched network without modifications to the 2G-UT, an Iu-CS IP stack, and a relay to map the control plane information between the 2G stack and the Iu-CS IP stack, and vice-versa; a mobile switching center (MSC), connected to the VGW via the Iu-CS IP stack, to manage and establish the voice services between the 2G-UT and a public switched telephone network (PSTN) based on the mapped control plane information; and a media gateway (MGW) connected to the VGW via the Iu-CS IP stack, where the MGW communicates the user plane information between the 2G-UT and the PSTN after the MSC 2-G UT vocoder, e.g. AMBE, has established voice services.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: January 11, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Channasandra Ravishankar, Gaguk Zakaria
  • Communication throughput despite periodic blockages
    Patent number: 11223372
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for improving communication throughput despite periodic blockages. In some implementations, a method includes receiving, by a receiver and from a transmitter, code blocks transmitted according to a first set of communication parameters that includes one or more first interleaver parameters used to interleave information in the code blocks prior to transmission. Corrupted portions of at least some of the received code blocks are identified. A blockage duration and a blockage interval of a blockage of communication channel between the transmitter and the receiver are determined based on the corrupted portions of the received code blocks. A second set of communication parameters that includes one or more second interleaver parameters are determined based on the blockage duration and blockage interval.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: January 11, 2022
    Assignee: Hughes Network Systems, LLC
    Inventor: Victor Liau
  • System and method of traffic-based classification of IoT devices and dynamic allocation of link resources to IoT devices
    Patent number: 11218422
    Abstract: Systems and method are disclosed and among these is a method for fingerprint based detection of Internet of Things (IoT) devices and classification of IoT device type, and corresponding adaptive allocation of link resources, with monitoring of traffic for flow data, detecting IoT devices and classifying the IoT device types, via machine learning classifiers, real time assigning IoT device type based quality of service (QoS) for IoT device traffic, and corresponding IoT device type based, real time allocating of resources to the link. Optionally, machine classifiers can be centrally instantiated, distributed to what can be large populations of user IoT Internet access terminals, and retrained by same, centrally merged or combined, and then redistributed.
    Type: Grant
    Filed: December 28, 2019
    Date of Patent: January 4, 2022
    Assignee: Hughes Network Systems, LLC
    Inventors: Satyajit Roy, John D Kenyon, Amit Arora
  • Satellite network virtual LAN usage
    Patent number: 11211999
    Abstract: A satellite telecommunication system includes a satellite and multiple computing devices. One computing device is in communication with the satellite and programmed to generate a virtual local area network (VLAN) packet with a VLAN tag and transmit the VLAN packet to the satellite. Another computing device is in communication with the satellite and programmed to receive the VLAN packet, determine VLAN tag information from the VLAN tag, and forward at least the original packet while preserving VLAN tag information associated with the VLAN tag.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: December 28, 2021
    Assignee: Hughes Network Systems, LLC
    Inventors: Satyajit Roy, George Choquette
  • Beamformer accounting for non-homogeneity of offered traffic distribution among cells
    Patent number: 11206570
    Abstract: A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar ? and a weighted minimum mean squared error (WMMSE) matrix WWMSE; and transmitting/receiving the beams based on the power scalar ? and the WMMSE matrix WWMSE, where the power scalar ? satisfies a total power constraint of an antenna subsystem.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: December 21, 2021
    Assignee: Hughes Network Systems, LLC
    Inventors: Udaya Bhaskar, Stanley Kay, Neal David Becker
  • Flexible redundancy using RF switch matrix
    Patent number: 11196456
    Abstract: Techniques including controlling coupling and uncoupling of RF ports included in an RF switch matrix including first-side RF ports and second-side RF ports, where each of the first-side RF ports is configured to be selectively coupled to at least one of two or more of the second-side RF ports, identifying one or more of the second-side RF ports as active ports including an active port, causing the RF switch matrix to couple the active port to a signal port included in the first-side RF ports, obtaining at least one of a bit error rate and a signal to noise ratio for a demodulation of an RF stream received via the active port, and causing, in response to at least one of the bit error rate or the signal to noise ratio, the RF switch matrix to couple the signal port to a spare port included in the second-side RF ports.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: December 7, 2021
    Assignee: Hughes Network Systems, LLC
    Inventor: Joseph Merchlinsky
  • Terminal radio characterization
    Patent number: 11196508
    Abstract: A system and method for characterizing performance of a terminal radio. The method includes obtaining a plurality of SNR feedbacks by, for each input power level of varying input power levels of the terminal radio, estimating an SNR (signal-to-noise ratio) associated with a respective input power level for a burst sent from the terminal radio to a gateway, where each of the SNR feedbacks may include an estimated SNR and the respective input power level; and determining a RC (radio characterization) of the terminal radio based on where the SNR feedbacks start deteriorating without indicating a saturated response at the gateway, where bursts are transmitted at a selected frequency with a selected SYMCOD (symbol, modulation and error coding scheme).
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: December 7, 2021
    Assignee: Hughes Network Systems, LLC
    Inventors: Murali Regunathan, Douglas Ricker