Patents Assigned to Hughes Networks Systems, LLC
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Patent number: 10819419Abstract: A system and method for timing synchronization of satellite switching instants with gateway switching instants is described.Type: GrantFiled: July 22, 2019Date of Patent: October 27, 2020Assignee: Hughes Networks Systems, LLCInventors: Murali Regunathan, Yezdi Antia, Neal David Becker, Stanley Kay, Uday R. Bhaskar
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Patent number: 10708194Abstract: Dynamic history multistream long range compression (DHC) techniques are described for efficiently compressing multiple, prioritized data streams received over a channel. A history buffer is associated with each received stream and a DHC compressor dynamically allocates fixed sized history sections to and from each history buffer. In implementations, the DHC compressor makes stream history size adjustments prior to compressing a block of data and sends information identifying the change in history size to a DHC decompressor. The DHC decompressor sends signaling information to the DHC compressor that is used to ensure that the DHC decompressor can operate with a fixed amount of total history memory.Type: GrantFiled: August 31, 2018Date of Patent: July 7, 2020Assignee: HUGHES NETWORKS SYSTEMS, LLCInventors: Douglas Merrill Dillon, Uday R. Bhaskar
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Patent number: 10594027Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for training and using machine learning models to detect problems in a satellite communication system. In some implementations, one or more feature vectors that respectively correspond to different times are obtained. The feature vector(s) are provided as input to one or more machine learning models trained to receive at least one feature vector that includes feature values representing properties of the satellite communication system and output an indication of potential causes of a condition of the satellite communication system based on the properties of the satellite communication system. A particular cause that is indicated as being a most likely cause of the condition of the satellite communication system is determined based on one or more machine learning model outputs received from each of the one or more machine learning models.Type: GrantFiled: August 31, 2018Date of Patent: March 17, 2020Assignee: Hughes Networks Systems, LLCInventors: Amit Arora, Archana Gharpuray, John Kenyon
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Patent number: 10588029Abstract: Systems and methods are disclosed, and one includes receiving a configuration specification data, including a cell floorplan data identifying a plurality of rectangular cells, and indicating a cell width and a cell length of each, in combination with determining, based at least in part on the configuration specification data, a spot beam pattern that provides a plurality of rectangular cell coverage regions, having the cell length and width.Type: GrantFiled: November 17, 2018Date of Patent: March 10, 2020Assignee: Hughes Networks Systems, LLC.Inventors: Stanley Edward Kay, Liping Chen, Uday Ramachandra Rao Bhaskar
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Publication number: 20190349073Abstract: A system and method for timing synchronization of satellite switching instants with gateway switching instants is described.Type: ApplicationFiled: July 22, 2019Publication date: November 14, 2019Applicant: Hughes Networks Systems, LLCInventors: Murali REGUNATHAN, Yezdi Antia, Neal David Becker, Stanley Kay, Uday R. Bhaskar
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Patent number: 10200885Abstract: A telecommunications system includes a plurality of ranging terminals programmed to communicate with a plurality of satellites over a plurality of frequencies. A processor, having a memory, is programmed to receive ranging data from each of the plurality of ranging terminals, determine a plurality of power levels for each of the plurality of terminals, and transmit the plurality of power levels to each of the plurality of ranging terminals. Each power level is associated with one of the plurality of frequencies. The plurality of ranging terminals is programmed to transmit signals to the plurality of satellites over the plurality of frequencies in accordance with the power levels determined by the processor.Type: GrantFiled: May 12, 2016Date of Patent: February 5, 2019Assignee: Hughes Networks Systems, LLCInventors: Yash M. Vasavada, Yezdi Antia
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Publication number: 20170257407Abstract: A method of providing data via radio transmissions, the method including identifying a first content item as being of potential interest to multiple remote radio terminals; and in response to the identification of the first content item, cause a first portion of the first content item to be transmitted to a first plurality of remote radio terminals via a first multicast radio transmission, wherein the first transmission identifies the first portion of the first content as data which may be cached by the first plurality of remote radio terminals.Type: ApplicationFiled: March 1, 2016Publication date: September 7, 2017Applicant: Hughes Networks Systems, LLCInventors: Patrick Boyle Fisher, Matthew Mario Butehorn, Thomas Paul Gaske
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Patent number: 9590645Abstract: An apparatus for PLL bandwidth expansion including a compensation filter and a phase locked loop, where the compensation filter is programmed with a compensation function derived based on programmable coefficients and parameters of a transmitting device, a frequency response of the phase locked loop, and a wanted frequency response.Type: GrantFiled: August 3, 2015Date of Patent: March 7, 2017Assignee: Hughes Networks Systems, LLCInventors: Thomas Jackson, George Eapen
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Patent number: 9578646Abstract: A method and a satellite terminal are provided. The satellite terminal may range over multiple frequencies and may receive, from a satellite gateway, a signal quality indicator with respect to each of the ranged multiple frequencies. Noise and interference for a corresponding frequency are estimated based on at least one of the received signal quality indicators for the corresponding frequency. Path loss is estimated based on multiple received signal quality indicators, each of which is received in response to the satellite terminal transmitting a signal while not performing the ranging process. A transmit power level of the satellite terminal is adjusted for the corresponding frequency based on the estimated path loss and the estimated noise and interference for the corresponding frequency.Type: GrantFiled: April 8, 2015Date of Patent: February 21, 2017Assignee: Hughes Networks Systems, LLCInventors: Yash Vasavada, Yezdi Antia, David Alan Roos, Ying Liu, Walter Robert Kepley, III
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Patent number: 9461765Abstract: A multiple access scheme is described. A first bit stream is scrambled from a first terminal according to a first scrambling signature. A second bit stream is scrambled from a second terminal according to a second scrambling signature, wherein the first bit stream and the second bit stream are encoded using a low rate code. The first scrambling signature and the second scrambling signature are assigned, respectively, to the first terminal and the second terminal to provide a multiple access scheme.Type: GrantFiled: January 16, 2013Date of Patent: October 4, 2016Assignee: Hughes Networks Systems, LLCInventors: Mustafa Eroz, Lin-Nan Lee, Lakshmi Iyer, Neal Becker
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Patent number: 9397704Abstract: Approaches for satellite data transmissions are provided, which accommodate for periodic signal blockages without packet loss. A data stream is segmented into packets for wireless transmission, wherein the transmission is subject to a periodic blockage, wherein the periodic blockage comprises two blockages occurring within a time period, and each blockage is of a respective duration and recurs at regular intervals based on the time period. A forward error correction outer code is applied to the packets for recovery of data erasures due to the periodic blockage, wherein the application of the outer code comprises applying an error correction code to each of the packets to generate a respective codeblock. Each codeblock is interleaved to prevent erasure of consecutive parity bits within the codeblock. The encoded and interleaved codeblocks are transmitted over a wireless channel, wherein a number of data erasures occur within each codeblock due to the periodic blockage.Type: GrantFiled: April 14, 2015Date of Patent: July 19, 2016Assignee: Hughes Networks Systems, LLCInventors: Mustafa Eroz, Lin-Nan Lee
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Patent number: 9203431Abstract: Approaches are provided for closing communications channel links (e.g., for small terminal applications in satellite communications systems), at lower effective data rates, in a most power efficient manner, while still meeting regulatory requirements. Such approaches employ modulation and coding schemes that facilitate such lower effective data rates in a most power efficient manner. The new modulation and coding schemes include new low density parity check (LDPC) codes.Type: GrantFiled: March 15, 2014Date of Patent: December 1, 2015Assignee: Hughes Networks Systems, LLCInventors: Lin-Nan Lee, Mustafa Eroz, Liping Chen
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Patent number: 8953801Abstract: A system and method is provided which allows multicast communications encrypted using IPSec protocol to be received by receivers in a network. In order to allow the receivers to receive the encrypted multicast communication, the address information of the received multicast communication is modified to appear as a unicast communication being transmitted directly to the address of the receiver, such that the receiver may then decrypt the received multicast communication using IPSec decryption capabilities or may, alternatively, forward the received multicast communication in its encrypted state to other devices. The system and method further provide IPSec encryption key delivery to the receiver using an encrypted markup language file. Multiple keys may also be generated for a given IP address of a receiver with each key being generated for a particular multicasting hierarchical classification.Type: GrantFiled: April 18, 2012Date of Patent: February 10, 2015Assignee: Hughes Networks Systems, LLCInventors: John K. Thomasson, Neil R. Terry, Matthew M. Davis, Myron L. Mosbarger
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Publication number: 20130214830Abstract: An apparatus for PLL bandwidth expansion including a compensation filter and a phase locked loop, where the compensation filter is programmed with a compensation function derived based on programmable coefficients and parameters of a transmitting device, a frequency response of the phase locked loop, and a wanted frequency response.Type: ApplicationFiled: February 21, 2012Publication date: August 22, 2013Applicant: HUGHES NETWORKS SYSTEMS, LLCInventors: Thomas Jackson, George Eapen
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Publication number: 20130205182Abstract: An apparatus for a dual mode low density parity check (LDPC) decoder including edge random access memory (RAM), last-in-first-out/first-in-first-out (LIFO/FIFO) RAM, channel RAM, and parallel datapath engines, where the datapath engines include a standard belief propagation decoding (SBD) datapath and a layered belief propagation decoding (LBD) datapath, where the SBD datapath includes a shifter, an accumulator, multiplexers, and a g( )_sbd calculator, and where the LBD datapath includes the shifter, the multiplexers, and a g?( )_lbd calculator.Type: ApplicationFiled: February 8, 2012Publication date: August 8, 2013Applicant: HUGHES NETWORKS SYSTEMS, LLC.Inventors: Marwan Adas, Shruti Dhingra, Shumin Zhang
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Publication number: 20130155943Abstract: A method for efficient retransmission over a satellite network including transmitting data packets to VSATs, receiving retransmission requests for at least one of the data packets from the VSATs, generating a retransmission packet based on the retransmission requests using XOR summing, transmitting the retransmission packet to the plurality of VSATs.Type: ApplicationFiled: December 16, 2011Publication date: June 20, 2013Applicant: HUGHES NETWORKS SYSTEMS, LLCInventors: Chi-Jiun Su, Lin-Nan Lee
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Publication number: 20130136000Abstract: A method for controlling data traffic with random early detection and window size adjustments including performing random early detection on incoming data packets, calculating a simple moving average of packet dropping probabilities for the data packets as calculated when performing random early detection, decreasing an advertised window size if the simple moving average is greater than a probability target plus a tolerance factor, increasing the advertised window size if the simple moving average is less than the probability target minus a tolerance factor, and not adjusting the window size if the simple moving average is not greater than a probability target plus a tolerance factor and not less than a probability target minus a tolerance factor.Type: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Applicant: HUGHES NETWORKS SYSTEMS, LLCInventors: Robert Torres, John Border, Pat Stevens, Jun Xu, Je-Hong Jong
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Publication number: 20130136004Abstract: A method for inroute bandwidth allocation supporting multiple traffic priorities in a satellite network including generating a backlog report, transmitting the backlog report to an inroute group manager, receiving a bandwidth allocation from the inroute group manager, and servicing priority queues and transmitting data to a satellite based on the bandwidth allocation from the inroute group manager.Type: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Applicant: HUGHES NETWORKS SYSTEMS, LLCInventors: Robert Torres, John Border, Pat Stevens, Jun Xu
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Publication number: 20130135996Abstract: A method for traffic management and resource allocation on a shared access network including estimating a bandwidth capacity of a gateway, determining a demand rate of an IP gateway, allocating bandwidth to the IP gateway based on the demand rate, traffic priority, or traffic weighting, allocating bandwidth to the IP gateway in advance of demand when excess bandwidth is available, scheduling traffic at the IP gateway based on traffic priority, service plan of a VSAT, or physical layer properties of the VSAT, performing priority queue servicing of traffic at a gateway using a real time traffic priority queue, a non-real time traffic priority queue, two or more modulation and coding queue groups, and a code block queue.Type: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Applicant: HUGHES NETWORKS SYSTEMS, LLCInventors: Robert Torres, John Border, Pat Stevens, Jun Xu
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Publication number: 20130109299Abstract: A system for gateway RF diversity using a configurable spot beam satellite including a satellite, a first gateway connected to a first VSAT population through the satellite by a first gateway spot beam and a first user spot beam set, a diversity gateway located outside of the first gateway spot beam for the first gateway, and a diversity control function to command the satellite to connect the first user spot beam set for the first gateway to a diversity gateway spot beam when the first gateway experiences service interruption.Type: ApplicationFiled: October 31, 2011Publication date: May 2, 2013Applicant: Hughes Networks Systems, LLCInventors: Dave Roos, Adrian Morris, Stanley Kay, George Choquette