Including Forward Error Correction Capability Patents (Class 714/751)
  • Patent number: 10771193
    Abstract: A method for checking a signal transmission of a specified message with a number of d bits from a sender to a receiver by a control unit using a linear block code generated via a coding tool, a channel model, and a specified linear feedback shift register, which is parameterized via a generator polynomial, wherein the residual error probability of different Markov-modulated Bernoulli processes is calculated, where boundary conditions for signal transmission can be specified by using a characterizing Markov-modulated Bernoulli process and also a linear feedback shift register, where integration of the calculation of the residual error probability is performed in a dynamic, intelligent control circuit such that the respective residual error probabilities can be determined for different generator polynomials.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: September 8, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Maximilian Walter, Bastian Mauerer
  • Patent number: 10749638
    Abstract: Systems and methods for soft buffer handling with limited memory access bandwidth are provided herein. In some embodiments, a method of operation of a User Equipment (UE) of a cellular communications network includes receiving a retransmission that would require a total number of memory accesses to process that is greater than a memory access bandwidth of a soft buffer of the UE. The method also includes prioritizing which bits should be read from or written to the soft buffer of the UE when processing the retransmission based on the memory access bandwidth, any previously received redundancy versions, and/or a currently received redundancy version. According to some embodiments, this achieves higher system performance than Chase Combining alone while keeping the receiver implementation limitation as low as alternative solutions.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: August 18, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jung-Fu Cheng, Yu Yang
  • Patent number: 10705898
    Abstract: A method and system to surreptitiously inject data into a data stream over a communication channel including an error correction encoder circuit to apply an error correction scheme to a data stream to create an unfaulted data, a binary to bit value positioner that converts bits in confidential data to corresponding position value of bits in a packet, and a data stream encoder that flips a bit in the unfaulted data based on the binary to bit value positioner to create a bit-faulted data.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: July 7, 2020
    Assignee: ARXAN TECHNOLOGIES, INC.
    Inventor: Grant Stewart Goodes
  • Patent number: 10700710
    Abstract: Methods, systems, and devices are described for wireless communications. A transmitting device may generate first encoded bits by encoding first information bits using a polar code of a first size, N, and transmit the first encoded bits to a receiving device. After determining the receiving device failed to decode the encoded bits, the transmitting device may generate second encoded bits by encoding the first information bits using a polar code of a second size, 2N. In some cases, the transmitting device may use the first encoded bits and one or more copied information bits to generate the second encoded bits. The transmitting device may transmit the second encoded bits to the receiving device, along with an indication of the number of copied information bits used to generate the second encoded bits. The number of copied information bits may be based on changing channel conditions or transmission parameters.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: June 30, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Yang Yang, Jing Jiang
  • Patent number: 10687364
    Abstract: Methods and apparatuses are described for wireless communications. Cells may be grouped into a plurality of cell groups. Time alignment timers may be associated with cell groups. A wireless device may perform/continue/stop transmissions based on the time alignment timers.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: June 16, 2020
    Assignee: Comcast Cable Communications, LLC
    Inventor: Esmael Hejazi Dinan
  • Patent number: 10680762
    Abstract: Provided are a modem chip for performing hybrid automatic repeat request (HARQ) processing, an application processor including the modem chip, and an operating method of the modem chip. A modem chip for receiving data of a codeword unit including a plurality of codeblock units includes a HARQ controller for controlling HARQ data of the codeword unit to be saved in an external memory based on an error detection result of the codeword unit, a HARQ mover for saving or fetching the HARQ data of the codeword unit in or from the external memory via a bus interface, and a HARQ combiner for combining retransmitted data with the HARQ data fetched from the external memory.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 9, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-sang Cho, Hyun-young Oh, In-chul Song, Yong-chan Kim
  • Patent number: 10623142
    Abstract: According to embodiments, there is provided a method apparatus for determining an encoding scheme for transmission of encoded data across a communications channel. The method includes determining the encoding scheme at a design Signal-to-Noise Ratio and evaluating a Frame Error Rate of the encoding scheme. If the FER is not within a target range, the method further includes modifying the encoding scheme until the evaluated FER is within the target range. There is further provided a method and apparatus for mapping bit labels to a plurality of symbols in a constellation, wherein the constellation are organisable into a plurality of sets and each bit label includes a plurality of bit positions. The method includes determining a distance metric between sets and merging pairs of sets according to the distance metric. The method further includes assigning a value to a bit position for bit labels of symbols in the merged set.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: April 14, 2020
    Assignee: Huawei Technologies Canada Co., Ltd.
    Inventors: Ian Marsland, Reinhard Balogun, Ramy Gohary, Halim Yanikomeroglu, Ngoc Dung Dao, Nimal Gamini Senarath
  • Patent number: 10608668
    Abstract: Embodiments of this application provide a method for processing information bits in a wireless communication network. A device obtains a Polar encoded bit sequence, then divide the Polar encoded bit sequence into g groups that are of equal length N/g, wherein g is 32. The device block interleaves the g groups to obtain an interleaved bit sequence according to a sequence S, wherein the sequence S comprises: group numbers of the g groups, wherein a group whose number is 0 is the first element in the sequence S, wherein a group whose number is 12 is the 17th element in the sequence S, wherein a group whose number is 31 is the 32nd element in the sequence S, wherein the S is an integer and output the interleaved bit sequence.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: March 31, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Gongzheng Zhang, Ying Chen, Yunfei Qiao, Yourui Huangfu, Rong Li
  • Patent number: 10595323
    Abstract: There is provided a method for data storage, comprising: a terminal device receives configuration signaling transmitted by a base station; the terminal device determines a first parameter according to the configuration signaling, wherein when the number of unsuccessfully decoded transport blocks (TBs) received by the terminal device is not less than the first parameter, the number of TBs stored by the terminal device in a buffer is not less than the first parameter. In this way, the terminal device can determine unsuccessfully decoded TBs to be stored according to the first parameter indicated by the configuration signaling transmitted by the base station when the number of the received unsuccessfully decoded TBs is not less than the first parameter, so that the utilization efficiency of a storage space can be improved.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 17, 2020
    Assignee: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
    Inventor: Bin Feng
  • Patent number: 10554329
    Abstract: Methods and apparatuses for communicating in a cellular communications network, including provision of a user equipment comprising processing circuitry to: replace one or more transmission parameters from which a further transmission parameter may be determined with one or more corresponding virtual transmission parameters to provide one or more replacement transmission parameters from which a modified further transmission parameter may be determined; determine the modified further transmission parameter based on the one or more replacement transmission parameters; and transmit a signal using the modified further transmission parameter.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: February 4, 2020
    Assignee: Apple Inc.
    Inventor: Alexei Davydov
  • Patent number: 10541525
    Abstract: The present disclosure relates to configuring parameters of a system. In some examples, a timer duration circuit can be configured to output a timer duration signal defining a time duration for a retry signal based on an impedance of a first circuit coupled at a first node. A logic circuit can be configured to control an output of the retry signal to at least one integrator circuit to control a current to a second node based on one of the timer duration signal and a retry timer signal, and a combination thereof. An output circuit can be configured to output a stop retry signal based on a voltage established by a second circuit at the second node based on its impedance and the current. The stop retry signal can indicate a number of retries that have occurred and can be based on the capacitances of the first and second circuits.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: January 21, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Abhrarup Barman Roy, Abhishek Kumar, Subrato Roy, Ankur Chauhan, Abhinay Patil
  • Patent number: 10530396
    Abstract: Aspects of the invention include monitoring frames of bits received at a receiver for transmission errors. At least one of the received frames of bits includes cyclic redundancy code (CRC) bits for a first type of CRC check. It is determined whether a change in transmission errors has occurred in the received frames by performing the first type of CRC check based at least in part on the received CRC bits and payload bits in the received frames. A change from the first type of CRC check to a second type of CRC check is initiated at the receiver based at least in part on determining that a change in transmission errors has occurred. The change is synchronized between the receiver and the transmitter, and performed in parallel with functional operations performed by the receiver.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 7, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Steven R. Carlough, Patrick J. Meaney, Gary Van Huben
  • Patent number: 10476528
    Abstract: A packet processing method and device are disclosed. The method includes: performing code block segmentation on a source packet to obtain a sub-packets; performing error correction encoding on each sub-packet respectively, or performing error correction encoding after respectively adding a CRC sequence to each sub-packet to obtain a error correction encoding sub-packets; performing network encoding on the a error correction encoding sub-packet to obtain b check sub-packets; and performing bit selection operation on the a error correction encoding sub-packets and the b check sub-packets respectively to collectively form an encoded packet; herein a and b are integers greater than 0.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: November 12, 2019
    Assignee: ZTE CORPORATION
    Inventors: Liguang Li, Jun Xu, Jin Xu, Zhifeng Yuan
  • Patent number: 10454618
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method and apparatus for transmitting a signal in a transmitting apparatus in a communication system supporting a rate compatible-low density parity check (RC-LDPC) code are provided. The method includes encoding information bits based on a first parity check matrix and a first code rate to generate a codeword, processing the codeword to generate a transmission signal, and transmitting the transmission signal.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 22, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Jang, Seok-Ki Ahn, Chi-Woo Lim, Jae-Yoel Kim, Woo-Myoung Park
  • Patent number: 10432379
    Abstract: Methods and apparatus to enable an extensible and scalable control channel for wireless networks. In one embodiment, an Enhanced Physical Downlink Control Channel (ePDCCH) is disclosed that is implemented with a flexible number of Physical Resource Blocks (PRBs). Advantages of the ePDCCH include, for example: more efficient spectral utilization, better frequency management across multiple serving entities (e.g., base stations and remote radio heads), and extensible payload capabilities that can scale to accommodate higher or lower control information payloads, as compared to prior art PDCCH solutions.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: October 1, 2019
    Assignee: Apple Inc.
    Inventor: Sassan Ahmadi
  • Patent number: 10432360
    Abstract: Disclosed herein is method and device for performing a Hybrid Automatic Repeat request (HARQ) based on polar codes in a wireless communication system. A transmitter transmits a first packet to a receiver. The transmitter receives a re-transmission request for the first packet from the receiver. The transmitter transmits a second packet to the receiver. Herein, each of the first packet and the second packet includes at least one information bit and at least one frozen bit. An information bit having a smallest mutual information corresponding to a bit channel within the first packet is re-transmitted through a first bit channel capable of transmitting at least one information bit included in the second packet. Alternatively, a new information bit is transmitted through a second bit channel capable of transmitting at least one information bit included in the second packet.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 1, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Il-Min Kim, Joonkui Ahn, Byounghoon Kim
  • Patent number: 10432219
    Abstract: This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z?K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: October 1, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chen Zheng, Liang Ma, Xiaojian Liu, Yuejun Wei, Xin Zeng
  • Patent number: 10419035
    Abstract: Aspects of the invention include calculating, by a transmitter, source cyclic redundancy code (CRC) bits for payload bits. The source CRC bits include source CRC bits for a first type of CRC check and source CRC bits for a second type of CRC check. The source CRC bits are stored at the transmitter. The payload bits and the source CRC bits for the first type of CRC check are transmitted to the receiver. The receiver performs the first type of CRC check based at least in part on the payload bits and the source CRC bits for the first type of CRC check. The receiver also calculates and stores at the receiver calculated CRC bits for the second type of CRC check. If the first type of CRC check indicates an error, a comparison of the source and calculated CRC bits for the second type of CRC check is initiated.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: September 17, 2019
    Assignee: iNTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Steven R. Carlough, Patrick J. Meaney, Gary Van Huben
  • Patent number: 10397079
    Abstract: A system for evaluating quality of video delivered over a telecommunications network is provided. The system includes one or more monitoring probes coupled to one or more network interfaces providing direct communication between two or more networked devices. The monitoring probes are adapted to capture video data from the network interfaces. The system further includes a processor adapted to analyze the data captured by the monitoring probes. The processor is operatively configured to determine a number of lost data packets within the captured video data. The processor is further operatively configured to determine probability of unrecoverable losses within the captured video based on the determined number of lost data packets. The processor is also operatively configured to calculate a video quality index value based on the determined probability of unrecoverable loses.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: August 27, 2019
    Assignee: Netscout Systems, Inc.
    Inventors: Paul Barrett, Niranjan Keshavamurthy
  • Patent number: 10396821
    Abstract: Embodiments herein provide for a controller that is operable to soft read a data bit a plurality of times, to generate a bit set for the data bit from the soft reads, to logically operate on the bit set, and to generate a Hamming weight for the data bit based on the logical operation. The Hamming weight has fewer bits than the bit set and is operable to correct the data bit.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 27, 2019
    Assignee: Seagate Technologies LLC
    Inventors: Nicholas Odin Lien, Jay Allen Sheldon, Ryan James Goss, Ara Patapoutian
  • Patent number: 10372539
    Abstract: A black box recorder for an autonomous vehicle includes an interface configured to receive data from an engine control unit (ECU) device. The data includes first data and second data. The black box recorder further includes an error correction code (ECC) engine configured to determine a first parity size associated with the first data based on a characteristic of the first data and a second parity size associated with the second data based on a characteristic of the second data. The first parity size is different than the second parity size. The ECC engine is further configured to generate a convolutional low-density parity-check (CLDPC) codeword that includes the first data, the second data, first redundancy data associated with the first data, and second redundancy data associated with the second data. The first redundancy data has the first parity size, and the second redundancy data has the second parity size.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: August 6, 2019
    Assignee: Western Digital Technologies, Inc.
    Inventors: David Avraham, Idan Goldenberg, Alexander Bazarsky, Eyal Sobol, Martin Booth
  • Patent number: 10360096
    Abstract: Data is sent from a memory buffer device to a host device over a link. An error in the data is determined. A read response cancellation signal is sent to the host device to indicate the error to the host device, where the read response cancellation signal is to be sent subsequent to the data being sent from the memory buffer device to the host device.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 23, 2019
    Assignee: Intel Corporation
    Inventors: Brian S. Morris, Bill Nale, Robert G. Blankenship, Eric L. Hendrickson
  • Patent number: 10333556
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 25, 2019
    Assignee: Electronics and Telecommuications Research Institute
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10326476
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: June 18, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10313057
    Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for increasing decoding performance and/or reducing decoding complexity. An exemplary method generally includes obtaining a payload to be transmitted, partitioning the payload into a plurality of payload sections, deriving redundancy check information for each respective payload section of the plurality of payload sections, merging the redundancy check information for each payload section with the plurality of payload sections to form a sequence of bits, and generating a codeword by encoding the sequence of bits using an encoder. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: June 4, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jamie Menjay Lin, Yang Yang, Joseph Binamira Soriaga
  • Patent number: 10291349
    Abstract: Techniques for using multiple modulation schemes for a single packet are described. Each data packet is processed and transmitted in up to T blocks, where T>1. Multiple modulation schemes are used for the T blocks to achieve good performance. A transmitter encodes a data packet to generate code bits. The transmitter then forms a block of code bits with the code bits generated for the packet, determines the modulation scheme to use for the block (e.g., based on a mode/rate selected for the packet), maps the code bits for the block based on the modulation scheme to obtain data symbols, and processes and transmits the block of data symbols to a receiver. The transmitter generates and transmits another block in similar manner until the data packet is decoded correctly or all T blocks have been transmitted. The receiver performs the complementary processing to receive and decode the packet.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: May 14, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Aamod Khandekar, Avneesh Agrawal
  • Patent number: 10277360
    Abstract: Methods and systems are provided for allocating resources including VoIP (voice over Internet Protocol) and Non-VoIP resources. In some embodiments, multiplexing schemes are provided for use with OFDMA (orthogonal frequency division multiplexing access) systems, for example for use in transmitting VoIP traffic. In some embodiments, various HARQ (Hybrid Automatic request) techniques are provided for use with OFDMA systems. In various embodiments, there are provided methods and systems for dealing with issues such as Handling non-full rate vocoder frames, VoIP packet jitter handling, VoIP capacity increasing schemes, persistent and non-persistent assignment of resources in OFDMA systems.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 30, 2019
    Assignee: APPLE INC.
    Inventors: Robert Novak, Hang Zhang, Sophie Vrzic, Mo-Han Fong, Kelvin Kar-Kin Au, Jianglei Ma, Peiying Zhu, Wen Tong
  • Patent number: 10270705
    Abstract: A system and method for transmitting stateful data over a highly reliable stateless communications channel between a master device and a slave device is provided. Data that has been transmitted from the master device to the slave device is maintained in a buffer at the master device until the slave devices completes the actions required by commands accompanying the data and reports successful completion of the actions. Should an error occur in the data or processing of the data at the slave device an error message is sent from the slave device to the master device causing the stored transmitted data that has not as yet been acknowledged to be retransmitted to the slave device.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: April 23, 2019
    Assignee: VIOLIN SYSTEMS LLC
    Inventors: Maxim Adelman, Stephen Fischer
  • Patent number: 10243695
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method includes decoding a codeword corresponding to a preset decoding scheme to detect reliability information of each of codeword bits included in the codeword, wherein at least one of a number of quantization bits and a range of a quantization level used for detecting reliability information in the decoding scheme is determined based on a degree of a node on a bipartite graph of a low density parity check (LDPC) code.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: March 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Jang, Kyung-Joong Kim, Jae-Yoel Kim, Seho Myung, Seok-Ki Ahn, Chi-Woo Lim, Hong-Sil Jeong
  • Patent number: 10237022
    Abstract: The embodiments of the invention relate to a method for a first network node (NN 1) for transmitting or retransmitting data to a second network node (NN2). The method contains receiving at the first network node (NN1) from the second network node (NN2) a feedback parameter (FP) in response to a first transmission (DT1) of at least two data segments (DS1-1, DS2-1, DS3-1) of a data packet. The feedback parameter (FP) is a number of counted data segments of the at least two data segments (DS1-1, DS2-1, DS3-1) incorrectly received or lost or correctly received at the second network node (NN2) by the first transmission (DT1).
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: March 19, 2019
    Assignee: Alcatel Lucent
    Inventors: Volker Braun, Uwe Doetsch
  • Patent number: 10177785
    Abstract: An approach for generating updated error detecting code for a partial update of data is disclosed. The techniques include receiving data representing a change to a portion of a data object, the data object having a first error detecting code, and the portion of the data object having an offset from the beginning of the data object; generating a combination term by combining the data and the portion of the data object; and computing a second error detecting code based on the combination term. The techniques may further include computing a third error detecting code by combining the first error detecting code and the second error detecting code, the third error detecting code being configured to detect an error in the data object as changed by the data, and storing the data and the third error detecting code.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: January 8, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Cyril Guyot, Lluis Pamies-Juarez
  • Patent number: 10171208
    Abstract: Techniques described herein may be used to enable a base station to dynamically implement error correction procedures (e.g., Hybrid Automatic Repeat Request (HARQ), Forward Error Correction (FEC), etc.) based on one or more factors, such as a level of network activity, network congestion, etc. When network congestion is high, the network device may implement an error correction policy that is directed to using available network resources to prioritize error correction procedures for transmission failures with high service requirements. However, when network congestion is low, the network device may implement an error correction policy directed to optimizing error correction effectiveness by allocating unused network resources (e.g., bandwidth, physical channels, etc.) to correct transmission failures.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: January 1, 2019
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: Nader El Chebib
  • Patent number: 10140179
    Abstract: A method and system are disclosed for providing combined error code protection and subgroup parity protection for a given group of n bits. The method comprises the steps of identifying a number, m, of redundant bits for said error protection; and constructing a matrix P, wherein multiplying said given group of n bits with P produces m redundant error correction code (ECC) protection bits, and two columns of P provide parity protection for subgroups of said given group of n bits. In the preferred embodiment of the invention, the matrix P is constructed by generating permutations of m bit wide vectors with three or more, but an odd number of, elements with value one and the other elements with value zero; and assigning said vectors to rows of the matrix P.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: November 27, 2018
    Assignee: International Business Machines Corporation
    Inventors: Alan Gara, Dong Chen, Philip Heidelberger, Martin Ohmacht
  • Patent number: 10135576
    Abstract: A receiver node is operable to receive rateless encoded data packets from a transmitter node.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: November 20, 2018
    Assignee: Alcatel Lucent
    Inventors: Rouzbeh Razavi, Holger Claussen
  • Patent number: 10116377
    Abstract: A system and method of improving communications is provided. A gateway is communicatively coupled to an end terminal through an unmanned air vehicle (UAV), wherein a first link communicatively couples the gateway to the UAV, and a second link communicatively couples the UAV to the end terminal. At least one of the gateway and the UAV is configured to determine a signal quality on at least the first link between the gateway and the UAV in a first direction. If the signal quality exceeds a predetermined threshold, a received packet is encoded at the gateway for processing by the end terminal. The packet is further tagged with an indicator that the packet should bypass forward error correction (FEC) at the UAV.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: October 30, 2018
    Assignee: Google LLC
    Inventor: Michael Stephen Lohman
  • Patent number: 10075187
    Abstract: Bursty interference or puncturing may be identified, either by a user equipment (UE) or by a base station. In response, a protection scheme may be applied to protect communications from the bursty interference or puncturing. The protection scheme may include using both time and frequency interleaving of code blocks in the communications. The protection scheme may also include modifying the modulation and coding scheme (MCS), coding rate, precoding matrix index (PMI), or rank indicator (RI) used in the communications. The protection scheme may also include using a universal low-density parity check (LDPC) code in the transmission of the communications.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: September 11, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Jiang, Tingfang Ji, Joseph Binamira Soriaga, Peter Gaal, Alexei Yurievitch Gorokhov, Kambiz Azarian Yazdi, John Edward Smee
  • Patent number: 10038509
    Abstract: This data reception apparatus includes a first buffer capable of retaining a received packet at least in units of error correction blocks and a first controller that requests a transmission apparatus to retransmit a lost packet in the error correction block retained in the first buffer and performs processing of recovering the lost packet, and reads, from the first buffer, the error correction block at a point of time at which each of a plurality of particular data correction-allowed times different from each other elapses, performs error correction on each error correction block read at each point of time, and outputs each error correction result.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 31, 2018
    Assignee: SONY CORPORATION
    Inventors: Takahisa Someya, Kensaku Wakuda
  • Patent number: 10009040
    Abstract: Method of identification and compensation for inversion of the input bit stream when decoding LDPC codes includes obtaining a code word of the LDPC code from a demodulator output and writing the code word into a buffer memory, decoding the code word, calculating a syndrome for each iteration when decoding, making an analysis of converging the weight of the syndrome, generating an inversion feature for the input bit stream based on this analysis, continuing the decoding, if the inversion feature for the input bit stream does not give evidence of detecting inversion, resetting, if the inversion feature for the input bit stream shows inversion, the LDPC decoder and analysis parameters for the convergence of the weight of the syndrome, reading next code word from the buffer memory, and producing an inversion of this code word, and feeding the word to the decoder input to implement the next decoding operation.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: June 26, 2018
    Assignee: Topcon Positioning Systems, Inc.
    Inventors: Nikolay Afanasievich Vazhenin, Andrey Vladimirovich Veitsel, Alexey S. Lebedinsky, Ivan Andreevich Kirjanov
  • Patent number: 9985750
    Abstract: System and method embodiments are provided to support network communications with groups of UEs. The embodiments include a two-level group-based hybrid-automatic repeat request (HARQ) mechanism and acknowledgement (ACK)/negative ACK (NACK) feedback. An embodiment method includes receiving, at a UE within a virtual multi-point (ViMP) comprising UEs, a data packet for a target UE (TUE) that is broadcasted from a base station (BS) to the ViMP node, decode the data packet, and upon successfully decoding the data packet, broadcasting the data packet to the UEs within the ViMP node until a timer pre-established by the BS expires or an ACK message is received from the TUE or the ViMP node. In an embodiment, broadcasted data received in the ViMP node is re-broadcasted upon receiving a negative acknowledgment (NACK) message from the TUE, a beacon UE, or any of the UEs within the ViMP node.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: May 29, 2018
    Assignee: Huawei Technologies Co., Ltd
    Inventors: Amine Maaref, Mohammadhadi Baligh, Jianglei Ma
  • Patent number: 9979514
    Abstract: A method of handling a hybrid automatic repeat request (HARQ) process for semi-persistent scheduling (SPS) in a user equipment (UE) of a wireless communication system is disclosed. The method includes steps of configuring an SPS functionality which utilizes at least one HARQ process; receiving a first new data indicator (NDI) addressed to an SPS cell radio network temporary identifier (SPS C-RNTI) of the UE for a first HARQ process of the at least one HARQ process; and considering the next transmission to be received by the first HARQ Process as a first transmission of the first HARQ Process when receiving a second NDI addressed to a C-RNTI of the UE for the first HARQ process.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: May 22, 2018
    Assignee: INNOVATIVE SONIC LIMITED
    Inventor: Li-Chih Tseng
  • Patent number: 9934091
    Abstract: A dispersed storage (DS) processing module sends a plurality of undecodeable portions of a plurality of data files via a public wireless communication network to one or more targeted devices of a private wireless communication network. The DS processing module continues processing by sending data content indicators regarding the plurality of data files and in response to a selection of a data file of the plurality of data files based on a corresponding one of the data content indicators, sending, via the private wireless communication network, one or more encoded data slices of each of one or more sets of encoded data slices of the data file such that, for each of the one or more sets of encoded data slices, the one or more targeted devices obtains at least a decode threshold number of encoded data slices to decode the data file.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: April 3, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gary W. Grube, Timothy W. Markison
  • Patent number: 9935659
    Abstract: Systems for performing turbo product code decoding includes an error intersection identifier determining a set of one or more error intersections using a set of error-containing codewords, and updating, based at least in part on Chase decoding performed on the set of error-containing codewords, the set of error intersections to obtain an updated set of one or more error intersections, a bit location selector suitable for selecting, from the set of error intersections, a set of one or more least reliable bit locations using soft information associated with the set of error-containing codewords, and a Chase decoder performing Chase decoding on the set of error-containing codewords based on a first value being a number of least reliable bit locations and a second value being a maximum number of allowable flips allowed out of the number of least reliable bit locations.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: April 3, 2018
    Assignee: SK Hynix Inc.
    Inventors: Aman Bhatia, Naveen Kumar, Yi-Min Lin, Lingqi Zeng
  • Patent number: 9838156
    Abstract: Systems and methods for performing efficient blind decoding. A first plurality of decision metrics corresponding to a first repetition of periodic decoding information is stored. The first plurality of decision metrics is grouped into sequential portions. A plurality of combined versions of the sequential portions is stored into combining buffers arranged in sequence. Each combined version is associated with a different sequence of timing information. A first of the plurality of combined versions stored in a first of the combining buffers is combined with a second version of a second plurality of decision metrics that corresponds to a second repetition of the periodic decoding information. The second version is associated with timing information adjacent in the timing information sequence to the timing information associated with the first combined version. The data is decoded based on information in the combining buffers.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: December 5, 2017
    Assignee: Marvell International Ltd.
    Inventors: Vladan Petrovic, Yakun Sun, Jungwon Lee
  • Patent number: 9838159
    Abstract: A method, a device, and a non-transitory storage medium having instructions to receive data and first channel information pertaining to a transmission of the data; store first constellation data and demodulate the data; determine whether any error exists pertaining to the data; receive retransmitted data and second channel information when an error exists; demodulate the retransmitted data; calculate error vector magnitude data; generate corrective constellation data based on the error vector magnitude data, the first channel information, and the second channel information, wherein the corrective constellation data includes at least one reference constellation point that is repositioned on a constellation plane relative to at least one corresponding reference constellation point of a default constellation data; and use the corrective constellation data when demodulating additional data that is subsequently received.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: December 5, 2017
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: Donna L. Polehn
  • Patent number: 9831958
    Abstract: When the codeword level interference cancellation (CW-IC) is used at the receiver in conjunction with the superposition coding scheme at the transmitter, in order to guarantee the success of signal reception, restrictions of scheduling decisions in resource allocation of superposed transport blocks may occur. A method to mitigate the scheduling restrictions is proposed. For a low-geometry UE in NOMA operation, one sub-band is used as the basic scheduling unit. As a result, data in resource blocks scheduled for NOMA operation and data in resource blocks scheduled for other non-NOMA operation correspond to different transport blocks. Therefore, a high-geometric UE only needs to decode the data scheduled for NOMA. The base station does not need to impose additional scheduling restrictions and signaling overhead.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: November 28, 2017
    Assignee: MEDIATEK INC.
    Inventors: Chien-Hwa Hwang, Tze-Ping Low, Lung-Sheng Tsai, Yi-Ju Liao
  • Patent number: 9792176
    Abstract: A memory system includes a memory controller; and a memory device, the memory device including a memory cell array, the memory cell array including least a first memory page having a plurality of memory cells storing a plurality of stored bits, the memory controller being such that, the memory controller performs a first hard read operation on the first memory page to generate a plurality of read bits corresponding to the plurality of stored bits, and if the memory controller determines to change a value of one of a first group of bits, from among the plurality of read bits, the memory controller selects one of the first group of bits based on log likelihood ratio (LLR) values corresponding, respectively, to each of the first group of bits, and changes the value of the selected bit.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 17, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Evgeny Blaichman, Moshe Twitto, Avner Dor, Elona Erez, Jun Jin Kong, Shay Landis, Yaron Shany, Yoav Shereshevski
  • Patent number: 9787442
    Abstract: The present invention provides a method and system for performing Hybrid Automatic Repeat Request (HARQ) operation in an asymmetric multicarrier communication network environment. In one embodiment, a method includes receiving resource allocation information from a base station in a scheduling interval of a first carrier, where the resource allocation information indicates resources and transmit time interval in an uplink allocation interval. The method includes transmitting the HARQ packet to the base station in the transmit time interval of the uplink allocation interval on the second carrier if the transmit time interval corresponds to a first partition of the uplink allocation interval. If the transmit time interval corresponds to a second partition of the uplink allocation interval, the method further includes transmitting the HARQ packet to the base station in the transmit time interval of the uplink allocation interval on the second carrier according to a second type of HARQ process.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 10, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Anil Agiwal, Anshuman Nigam, Young-Bin Chang
  • Patent number: 9705654
    Abstract: Methods and apparatus to enable an extensible and scalable control channel for wireless networks. In one embodiment, an Enhanced Physical Downlink Control Channel (ePDCCH) is disclosed that is implemented with a flexible number of Physical Resource Blocks (PRBs). Advantages of the ePDCCH include, for example: more efficient spectral utilization, better frequency management across multiple serving entities (e.g., base stations and remote radio heads), and extensible payload capabilities that can scale to accommodate higher or lower control information payloads, as compared to prior art PDCCH solutions.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: July 11, 2017
    Assignee: APPLE INC.
    Inventor: Sassan Ahmadi
  • Patent number: 9680578
    Abstract: A method is proposed to enable a UE performing codeword level interference cancellation (CW-IC) to know whether an interfering transport block (TB) is a new transmission or retransmission. With this knowledge, the UE knows whether the soft channel bits stored in a soft buffer are to be discarded or combined with the soft channel bits newly obtained.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 13, 2017
    Assignee: MEDIATEK INC.
    Inventors: Chien-Hwa Hwang, Yi-Ju Liao, Tze-Ping Low, Lung-Sheng Tsai
  • Patent number: RE46821
    Abstract: A method and device for handling hybrid automatic repeat request (‘HARQ’) operations during transmission mode changes, the method detecting a transmission mode change; and manipulating an HARQ process buffer based on the detecting. Further, a method and network element for handling hybrid automatic repeat request (‘HARQ’) operations during transmission mode changes, the method checking when a user equipment is in a transmission mode uncertainty window; and blocking communications to the user equipment or utilizing a downlink control information format 1A for communications to the user equipment.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: May 1, 2018
    Assignee: BlackBerry Limited
    Inventors: Mark Earnshaw, Takashi Suzuki, Zhijun Cai, Youn Hyoung Heo