Particular Set Of Orthogonal Functions Patents (Class 370/208)
  • Patent number: 11563542
    Abstract: A method for operating a terminal in a wireless communication system is provided. The method includes receiving, from a base station, system information comprising information indicating a waveform for a second message, transmitting, to the base station, a random access preamble signal, receiving, from the base station, a first message comprising a random access response, and transmitting, to the base station, the second message using a resource allocated by the first message.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 24, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunil Yoo, Taeyoung Kim, Jeehwan Noh, Jong Bu Lim
  • Patent number: 11539462
    Abstract: A method of operating a first communication node includes receiving a communication at the first communication node from a second communication node, wherein the communication includes information bits in a plurality of information bit positions, determining, by the first communication node, a subset of the information bit positions of the communication that are punctured wherein the determining is performed based on detected or decoded control information, and responsive to determining the subset, reducing, by the first communication node, magnitudes of information bits in the subset of the information bit positions that are punctured.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: December 27, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Mårten Sundberg, Niklas Andgart, John Camilo Solano Arenas, Kazuyoshi Uesaka
  • Patent number: 11533151
    Abstract: Described herein is a system and method for determining one or more data modulation profiles for one or more devices. The system and method described herein may measure signal quality, such as a modulation error ratio (MER), signal-to-noise ratio (SNR), receive power, transmit power, etc. Based on the signal quality, the system may determine one or more data modulation profile(s) (e.g., quadrature amplitude modulation (QAM) profiles) for a subcarrier, a plurality of subcarriers, a device, and/or a grouping of devices.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: December 20, 2022
    Assignee: Comcast Cable Communications, LLC
    Inventors: Maurice Garcia, Larry Wolcott, Robert Gonsalves, Michael Pettit, John G. Bevilacqua, Jorge Salinger, Saifur Rahman
  • Patent number: 11523377
    Abstract: This disclosure describes techniques for optimizing the allocation of physical resource blocks (PRBs) for user equipment (UE), such as a Narrow-Band Internet of Things (NB-IoT) device, within a Long-Term Evolution (LTE) spectrum. More specifically, a resource allocation controller that is configured to select one of at least two resource allocation algorithms that allocate physical resources within an LTE spectrum, based on an identity of the UE and an analysis of real-time or near real-time physical resource utilization and control utilization within the LTE spectrum. In one example, the resource allocation controller may analyze the physical resource utilization and control utilization within a subframe of an LTE spectrum to determine whether to allocate an exact or near-exact number of PRBs for data communications of a UE (i.e. NB-IoT device), or whether to allocate a PRB group (at least four PRBs) for data communications of the UE.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: December 6, 2022
    Assignee: T-Mobile USA, Inc.
    Inventors: F N U Abin Jose, Ashwini Kumar, Emad Rezk
  • Patent number: 11523272
    Abstract: A method may comprise transmitting using a first uplink carrier and receiving a signal using a first downlink carrier. The signal may include a message indicating activation of a second uplink carrier. A method may further comprise initiating, based on the message, a timer associated with deactivation of the second uplink carrier. The method may further comprise transmitting using the second uplink carrier activated based on the message and deactivating the second uplink carrier on a condition that expiration of the timer is detected.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: December 6, 2022
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Christopher R. Cave, Diana Pani, Benoit Pelletier, Paul Marinier
  • Patent number: 11490395
    Abstract: A method and apparatus for antenna-array size adaptation at a BS include performing an initial beam refinement procedure using a plurality of antenna arrays with one or more devices, transmitting a plurality of beams using a plurality of antenna configurations to the one or more devices as part of an enhanced beam training procedure, wherein each antenna configuration includes a different subset of the plurality of antenna arrays used to transmit a different beam of the plurality of beams, receiving a plurality of feedback messages from the one or more devices associated with the plurality of beams transmitted using the plurality of antenna configurations, selecting an antenna configuration including a subset of the plurality of antenna arrays based on the plurality of feedback messages from the one or more devices, and communicating with the one or more devices using the selected subset of the plurality of antenna arrays.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: November 1, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Jung Ryu, Vasanthan Raghavan, Junyi Li
  • Patent number: 11483832
    Abstract: Methods and systems are disclosed for communicating in a wireless communications system utilizing a plurality of frequency bands for downlink (DL) transmission and a plurality of frequency bands for uplink (UL) transmission. In an embodiment, a mobile device receives a DL signal via a DL frequency band. The DL signal contains DL-UL frequency band association information which is used to determine a UL frequency band for UL transmission. The mobile device configures its radio-frequency (RF) circuitry to operate in the UL frequency band for UL transmission.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: October 25, 2022
    Assignee: Neo Wireless LLC
    Inventors: Titus Lo, Xiaodong Li
  • Patent number: 11477807
    Abstract: This disclosure describes systems, methods, and devices related to signal detection. A device may determine a physical layer protocol data unit (PPDU). The device may append a preamble to the PPDU. The device may generate a frame. The device may send the frame.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: October 18, 2022
    Assignee: INTEL CORPORATION
    Inventors: Xiaogang Chen, Robert Stacey, Huaning Niu, Laurent Cariou, Qinghua Li, Feng Jiang
  • Patent number: 11469937
    Abstract: Aspects of the present disclosure relate to methods and apparatus for location encoding for secondary synchronization signals (SSS) to convey additional information, such as a current symbol number. According to aspects, a method is provided herein for wireless communications that may be performed, for example, by a base station (BS). The method generally includes selecting frequency resources to use for transmitting synchronization signals in a symbol of a frame, wherein the frequency resources are selected based on a mapping of frequency resources to a location of the symbol within the frame; and transmitting synchronization signals to at least one user equipment (UE) according to the mapping. As a result, the UE may receive synchronization signals, determine a location of the current symbol in a frame based on the mapping, and synchronize to the BS based on the determined location of the current symbol. Numerous other aspects are provided.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 11, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Juergen Cezanne, Sundar Subramanian, Krishna Kiran Mukkavilli, Muhammad Nazmul Islam, Junyi Li
  • Patent number: 11463993
    Abstract: An apparatus may utilize an air interface to transmit and/or receive a transmission during a first TTI that includes a second set of data overriding a first set of data scheduled for transmission during the first TTI. The air interface may further be utilized to transmit and/or receive a transmission after a duration of time that is less than a total time duration of the first TTI that includes a control channel that is at least partially embedded in a data portion of a subframe. The control channel may include an override indicator configured to indicate that the first set of data scheduled for transmission during the first TTI is overridden by the second set of data having the higher priority. The override indicator may be transmitted after the second set of data is transmitted. The one or more additional TTIs may be after the first TTI.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 4, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Krishna Kiran Mukkavilli, Jing Jiang, Tingfang Ji, Jamie Menjay Lin, Joseph Binamira Soriaga, John Edward Smee
  • Patent number: 11456909
    Abstract: A method, network node and system for providing joint phase and delay compensation for a plurality of antenna branches in a network node having a plurality of antennas by processing injected signals and feedback signals in a frequency domain are provided. According to one aspect, a method includes performing at least squares algorithm applied to the injected signals and the feedback signals to generate corrective signals applied to input signals of each antenna branch.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: September 27, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Georgi Kostadinov, Lei Wang
  • Patent number: 11451337
    Abstract: A first communication device receives one or more physical layer (PHY) data units, which include a plurality of media access control (MAC) layer data units, from a second communication device via a communication channel that includes a first frequency segment and a second frequency segment separated by a gap in frequency, including simultaneously i) receiving a first MAC layer data unit via the first frequency segment of the communication channel, and ii) receiving a second MAC layer data unit via the second frequency segment of the communication channel. The first communication device generates acknowledgement information for the plurality of MAC layer data units, and transmits the acknowledgment information to the second communication device via one or both of i) the first frequency segment and ii) the second frequency segment.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: September 20, 2022
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Hongyuan Zhang
  • Patent number: 11431384
    Abstract: Embodiments of this application disclose a channel estimation method and apparatus, and relate to the field of communications technologies. The method may include: generating and sending indication information, where the indication information is used to indicate L space-frequency basis vectors for constructing an M×N-dimensional space-frequency vector; the space-frequency vector includes M N-dimensional precoding vectors, each precoding vector is used in one of M frequency bands, and the space-frequency vector is generated by performing a weighted combination on L space-frequency component vectors; each of the L space-frequency component vectors is a vector including M×N elements that are in one of the L space-frequency basis vectors, and each of the L space-frequency basis vectors is an Nf×N-dimensional vector; the space-frequency basis vector is a three-dimensional oversampled (DFT) vector; and L?2, Nf?M?1, N?2, and L, M, N, and Nf are all integers.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: August 30, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huangping Jin, Xiaohan Wang, Xiaoyan Bi
  • Patent number: 11431466
    Abstract: A communication method and an apparatus, the method including generating a demodulation reference signal (DMRS) sequence of a broadcast signal according to a pseudo-random sequence c(m), where the DMRS sequence is related to a quantity NRB of resource blocks (RBs) of the broadcast signal and a quantity nRE of resource elements (REs) occupied by the DMRS sequence in one RB, and mapping the DMRS sequence to one or more symbols.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: August 30, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huang Huang, Kuandong Gao, Mao Yan
  • Patent number: 11424974
    Abstract: The present disclosure provides a multi-carrier time-division multiplexing (MC-TDMA) modulation and demodulation method and system. Before multi-carrier modulation is performed on an input symbol, an interleaving allocation and an FFT may be performed, a time domain symbol may be transformed into a frequency domain symbol signal to perform a MDFT treatment. A sending end may adopt an analyzing filter bank structure, and pre-filtering and an IFFT may be performed on a signal successively. A pre-filter may be positioned between an NM point FFT and an M point IFFT, a PAPR value of the system may be reduced using the symmetry of a coefficient of a filter, and a frequency domain symbol signal may be allocated to different sub-bands for multi-carrier modulation.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: August 23, 2022
    Assignee: CHONGQING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
    Inventors: Guangyu Wang, Qianbin Chen, Kai Shao, Ling Zhuang
  • Patent number: 11424792
    Abstract: A flexible channel bandwidth for mobile radio communications is provided by provisioning a set of Orthogonal Frequency Division Multiplexing (OFDM) subcarriers for mobile radio communications; encoding data symbols with polyphase codes derived from a discrete Fourier transform to produce encoded data symbols; and modulating the encoded data symbols onto the OFDM subcarriers to produce a superposition signal that resembles a single-carrier signal and has one of a plurality of different symbol durations. The provisioning comprises selecting one of a plurality of different selectable subcarrier spacings, to provide for the one of the plurality of different symbol durations.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: August 23, 2022
    Assignee: Genghiscomm Holdings, LLC
    Inventor: Steve Shattil
  • Patent number: 11419106
    Abstract: A communication method, a base station, a radio communication node, and a user equipment are provided. A base station determines first resource configuration information, where the first resource configuration information is used for indicating N radio resource sets that are used when N radio communication nodes separately perform communication with a user equipment UE, and the radio resource includes a time domain resource and/or a frequency domain resource. The base station sends the first resource configuration information to the UE, where the UE communicates with a corresponding transmission point by using respective radio resource sets of transmission points, and the respective radio resource sets of the transmission points do not intersect. Therefore, a base station does not need to schedule a radio resource, thereby lowering a delay requirement on a backhaul link and eliminating interference.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: August 16, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bo Lin, Hao Bi, Yongxing Zhou, Yu Wang
  • Patent number: 11418548
    Abstract: Provided is a method of transmitting security information of a single-bit analog-to-digital converter (ADC) wiretap channel. In the method of transmitting the security information of the single-bit ADC channel, a transmitting terminal adds additive noise to a transmission signal and transmits the transmission signal, and a receiving terminal and a wiretap terminal which each include a single-bit ADC receive the transmission signal, wherein received information is processed so as not to be determined by the wiretap terminal. When intensity of additive noise of the receiving terminal is less than that of additive noise of the wiretap terminal, a binary phase-shift keying (BPSK) distribution is used, and when the intensity of the additive noise of the receiving terminal is greater than that of the additive noise of the wiretap terminal, a codebook is designed using an asymmetric BPSK distribution in which both of two message points have a positive value.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: August 16, 2022
    Assignees: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY, POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Jemin Lee, Si-Hyeon Lee, Seunghyun Nam
  • Patent number: 11411702
    Abstract: The present invention relates to a pilot tone generating method and apparatus of an orthogonal frequency division multiple access system and method, and a channel estimation method and apparatus using the same. The channel estimation apparatus includes a pilot tone extracting unit for extracting a pilot tone, which is inserted within a frame with data tone, masked with an orthogonal code; a pilot tone unmasking unit for unmasking of the pilot tone extracted from the pilot tone extracting unit by using an orthogonal code information; and a channel estimation operating unit for estimating a channel by calculating an average of the pilot tones which is unmasked in the unmasking unit.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: August 9, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Dong-Kwan Lee, Jung-Ju Kim
  • Patent number: 11411732
    Abstract: A device may select a first pseudorandom integer within a range of integers. The device may generate a first candidate prime, based on the first pseudorandom integer, for primality testing. Based on determining that the first candidate prime fails a primality test, the device may select a second pseudorandom integer within the range of integers. The device may generate a second candidate prime, based on the second pseudorandom integer, for primality testing. The device may determine whether the second candidate prime satisfies the primality test. The device may selectively: re-perform, based on the second candidate prime failing the primality test, the selecting the second pseudorandom integer, the generating the second candidate prime, and the determining whether the second candidate prime satisfies the primality test, or using, based on the second candidate prime satisfying the primality test, the second candidate prime as a prime integer in a cryptographic protocol.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: August 9, 2022
    Assignee: Juniper Networks, Inc.
    Inventors: Rathna Ramesh, Anna M. Johnston
  • Patent number: 11412378
    Abstract: Disclosed is a blind authentication method for a frequency selective fading channel based on a smoothing technique.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: August 9, 2022
    Assignee: Shenzhen University
    Inventors: Ning Xie, Li Zhang
  • Patent number: 11405250
    Abstract: In one example in accordance with the present disclosure, a device may include a processor to detect a distance between a first location of the device and a second location of a peer device, automatically select one value for GI from at least two available values based on the detected distance, and update the value of GI using the selected value. A method may include detecting a distance between a first location of the AP and a second location of a peer device, selecting one value for GI from at least two available values based on the detected distance, and updating the value of GI using the selected value.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: August 2, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Qiang Zhou, Xuguang Jia, Jianpo Han, Guangzhi Ran
  • Patent number: 11405924
    Abstract: Presented systems and methods facilitate efficient and effective communication interference mitigation. In one embodiment, a method comprises: configuring a payload portion of information in a normal transmission sub-channel; puncturing information in a punctured sub-channel; adjusting a mitigation sub-channel use to mitigate interference associated with the punctured sub-channel; and transmitting the information in the normal transmission sub-channel, the punctured sub-channel, and the mitigation sub-channel.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 2, 2022
    Assignee: Mediatek Singapore Pte. Ltd.
    Inventors: Shengquan Hu, Jianhan Liu
  • Patent number: 11398860
    Abstract: Methods and devices are provided for MIMO OFDM transmitter and receivers having odd and/even numbers of transmit antennas. Various methods for pre-coding information bits before space time coding (STC) are described for enabling transmission of information bits over all antennas. Methods of decoding received signals that have been pre-coded and STC coded are also provided by embodiments of the invention. Pilot patterns for downlink and uplink transmission between a base station and one or more wireless terminals for three transmit antenna transmitters are also provided. Variable rate codes are provided that combine various fixed rate codes in a manner that results in codes whose rates are dependent on all the various fixed rate codes that are combined.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: July 26, 2022
    Assignee: Apple Inc.
    Inventors: Mahmoud Taherzadehboroujeni, Hosein Nikopour, Amir Khandani, Wen Tong, Ming Jia, Peiying Zhu, Dong-Sheng Yu, Jianglei Ma
  • Patent number: 11398891
    Abstract: A wireless communication base station apparatus which is able to prevent deterioration in the throughput of LTE terminals even when LTE terminals and LTE+ terminals coexist. In this apparatus, based on the mapping pattern of the reference signals used only in LTE+ terminals, a setting unit sets, in each subframe, the resource block groups where the reference signals used only by the LTE+ terminals are mapped. For symbols mapped to the antennas, an mapping unit maps, to all the resource blocks within one frame, cell specific reference signals used for both LTE terminals and LTE+ terminals. For the symbols mapped to the antennas, the mapping unit maps, to the plurality of resource blocks, of which part of the resource block groups is comprised, in the same subframe within one frame, the cell specific reference signals used only for LTE+ terminals, based on the setting results inputted from the setting unit.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: July 26, 2022
    Assignee: Sun Patent Trust
    Inventors: Akihiko Nishio, Seigo Nakao, Daichi Imamura
  • Patent number: 11395140
    Abstract: Provided is a physical layer blind authentication method for a time-varying fading channel based on belief propagation. The method includes that: a transmitter transmits a carrier signal to a wireless channel, the carrier signal includes an authentication signal, a pilot signal and an information signal, and the wireless channel is the time-varying fading channel; a receiver receives the carrier signal, and performs BKIC processing and differential signal processing on the carrier signal to obtain a target authentication signal, the receiver obtains a reference signal based on a key and the pilot signal, performs the differential signal processing on the reference signal to obtain a reference authentication signal, and calculates a correlation between the target authentication signal and the reference authentication signal to obtain a test statistic; and compares the test statistic with a prescribed threshold to determine whether the carrier signal is capable of passing authentication.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 19, 2022
    Assignee: Shenzhen University
    Inventors: Ning Xie, Li Zhang
  • Patent number: 11381980
    Abstract: The present invention relates to a method and an apparatus for establishing a cell using system information of neighboring cells on the basis of interference environments of the neighboring cells in a wireless communication system. The method according to the present invention comprises the steps of: detecting, by a base station, cell IDs of neighboring cells by using synchronization signals transmitted from the neighboring cells; checking whether resources, to which common reference signals (CRS) transmitted from the neighboring cells are transmitted, overlap with each other, on the basis of the cell IDs; estimating channels of the neighboring cells by using the CRSs; and determining an interference environment for establishing a cell by using the result of the checking and the estimated channels.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: July 5, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chanho Choi, Seijoon Shim, Chongdon Kim, Hayoung Yang
  • Patent number: 11381362
    Abstract: In one exemplary embodiment, a method includes: inserting an indication of a cyclic prefix length into a transmission; and sending the transmission. In another exemplary embodiment, a method includes: receiving a transmission; and processing the received transmission to obtain an indication of a cyclic prefix length.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: July 5, 2022
    Assignee: Nokia Technologies Oy
    Inventors: Mieszko Chmiel, Przemyslaw J. Czerepinski, Kaj T. Jansen
  • Patent number: 11374804
    Abstract: A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices for the reserved tones; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; re-arranging an order of the preliminarily determined carrier indices of the reserved tones; calculating comparison reference average values of kernel signals generated by changing each of the re-arranged carrier indices of the reserved tones, and finally determining carrier indices of the reserved tones which generate a kernel signal having the smallest comparison reference average value among the comparison reference average values as indices of the reser
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 28, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho Oh, Hak-ju Lee
  • Patent number: 11368344
    Abstract: A method and apparatus having a synchronization signal sequence structure for low complexity cell detection is provided. The method includes establishing a set of a plurality of synchronization signal sequences to be used in connection with a communication target. Each one of the plurality of synchronization signal sequences includes at least a first sub-sequence, which includes either a first preselected sequence or a complex conjugate of the first preselected sequence, and a second sub-sequence, which includes either a second preselected sequence or a complex conjugate of the second preselected sequence. The second preselected sequence is different than the first preselected sequence, and is different than the complex conjugate of the first preselected sequence. Further, a length of the first sub-sequence and a length of the second sub-sequence are smaller than a length of the synchronization signal sequence.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 21, 2022
    Assignee: Motorola Mobility LLC
    Inventors: Ziad Ahmad, Hyejung Jung, Vijay Nangia
  • Patent number: 11363657
    Abstract: A first communication device generates a first data unit, for transmission in a first channel segment of a communication channel, to include a first medium access control (MAC) address utilized by the first communication device for operation in the first channel segment of the communication channel. The first communication device generates a second data unit, for transmission in a second channel segment of the communication channel, to include a second MAC address, different from the first MAC address, utilized by the first communication device for operation in the second channel segment of the communication channel. The first channel segment and the second channel segment are non-overlapping frequency segments of the communication channel. The first communication device transmits the first data unit and the second data unit in, respectively, the first channel segment and the second channel segment, to one or more second communication devices.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: June 14, 2022
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 11362694
    Abstract: Aspects relate to reconstructing a received non-linearly distorted (e.g., clipped) signal. A transmitting device may non-linearly distort a signal to be transmitted (e.g., by clipping peaks of the signal). A receiving device uses a signal reconstruction procedure to reconstruct the original signal. For example, the receiving device may estimate the non-linear distortion (e.g., due to clipped peaks) in the received signal by slicing the received signal, and applying a non-linear distortion to (e.g., clipping) the sliced signal using a threshold that corresponds to a threshold (e.g., a clipping threshold) used by the transmitting device. The receiving device may thereby generate a reconstructed signal based on this estimate of the non-linear distortion.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: June 14, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Yaron Laufer, Gideon Kutz, Elad Meir, Ory Eger, Assaf Touboul
  • Patent number: 11356312
    Abstract: A method and device to modulate an FBMC/OQAM signal, the device comprising at least one QAM mapper mapping a binary stream into complex symbols, a first and a second transmission chain. Each chain comprises: a precoder transposing respective sets of symbols into frequency domain real/imaginary samples, a phase rotator applying a phase quadrature keying to said samples, an FBMC modulator to modulate the output of the phase rotator into an FBMC symbol. The device further comprises an adder of the output of the first transmission chain with a delayed output of the second transmission chain, and is configured to insert guard interval sequences into the binary stream or into the symbols processed by the precoders. A corresponding radio communication equipment, computer program and readable medium is provided.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: June 7, 2022
    Assignee: INSTITUT MINES TELECOM—IMT ATLANTIQUE—BRETAGNE—PAYS DE LA LOIRE
    Inventors: Jérémy Nadal, Charbel Abdel Nour, Amer Baghdadi
  • Patent number: 11356851
    Abstract: A radio frequency (RF) communications system may include an RF transmitter having multicarrier transmitter circuitry that transmits frequency bands over a frequency range. A controller may selectively transmit real information over at least one of the frequency bands and selectively transmits fake information within the frequency range. The controller's operation is based on embedded machine learning model and real-time effectiveness feedback from built-in spectral analyzer. An RF receiver receives the real information from the RF transmitter.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: June 7, 2022
    Assignee: HARRIS GLOBAL COMMUNICATIONS, INC.
    Inventors: Christopher D. Mackey, Richard J. Buckley, Myung K. Lee, James A. Norris
  • Patent number: 11356119
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may generate a Reed Muller generating matrix for an information bit vector that includes a plurality of information bits. The wireless communication device may remove, from the Reed Muller generating matrix, a row vector consisting of all 1-values to form a modified Reed Muller generating matrix. The wireless communication device may encode the information bit vector using the modified Reed Muller generating matrix to form a codeword. The wireless communication device may transmit the codeword without transmitting a pilot signal or demodulation reference signal for the codeword. Numerous other aspects are provided.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: June 7, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Yang, Peter Gaal, Yi Huang, Krishna Kiran Mukkavilli, Tingfang Ji
  • Patent number: 11350245
    Abstract: Techniques are provided for time-domain processing of DL-PRS signals under certain conditions in which time-domain processing has a computational advantage over frequency-domain processing. Because of this, embodiments can provide positioning at a lower computational cost than positioning provided by traditional techniques utilizing only frequency-domain processing. This reduced computational cost can improve the battery life of mobile devices, ultimately resulting in a better user experience.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: May 31, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Guttorm Ringstad Opshaug, Weimin Duan, Alexandros Manolakos, Sony Akkarakaran, Charles Edward Wheatley
  • Patent number: 11343027
    Abstract: A method for mapping a physical hybrid automatic repeat request indicator channel (PHICH) is described. The method for mapping a PHICH includes determining an index of a resource element group transmitting a repetitive pattern of the PHICH, according to a ratio of the number of available resource element groups in a symbol in which the PHICH is transmitted and the number of available resource element groups in a first or second OFDM symbol, and mapping the PHICH to the symbol according to the determined index. In transmitting the PHICH, since efficient mapping is performed considering available resource elements varying with OFDM symbols, repetition of the PHICH does not generate interference between neighbor cell IDs and performance is improved.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: May 24, 2022
    Assignee: PANTECH CORPORATION
    Inventors: Jung Hoon Lee, Joon Kui Ahn
  • Patent number: 11343814
    Abstract: A slot scheduling method and apparatus are provided. A determined slot includes a first slot, the first slot includes a first idle time, and a time interval between a start moment of the first idle time and a start moment of the first slot is less than or equal to a preset time interval threshold, or a time interval between a start moment of the first idle time and an end moment of at least one OFDM symbol that is in the first slot and that is used to transmit control signaling is less than or equal to a preset time interval threshold. No first service is scheduled in the first idle time, thereby providing a transmission opportunity for a second service. In addition, time-domain locations of uplink transmission and downlink transmission of the first service and the second service do not overlap.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 24, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yun Liu, Jian Wang, Da Wang, Yongbo Zeng
  • Patent number: 11336420
    Abstract: A method for improving transmission link performance, performed by a first communication node for wireless communication with a second communication node is provided. The method includes obtaining information of a delay spread of first signals sent between the first communication node and the second communication node and determining at least one of a plurality of different values of a sub-carrier spacing for transmission of second signals between the first communication node and the second communication node, based on the obtained information of the delay spread. The method further includes initiating transmission of the second signals between the first communication node and the second communication node based on the determined at least one value of the sub-carrier spacing.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 17, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Muhammad Kazmi, Esther Sienkiewicz, Thomas Chapman
  • Patent number: 11323941
    Abstract: Provided is a communication device that favorably implements SR communication and MU communication. A communication device that operates as a base station includes a determination unit that determines a communication status in a BSS of the communication device, and a control unit that controls transmission and reception of a signal regarding connection change of a terminal according to the communication status to and from a surrounding base station. The determination unit determines the presence of a small number of terminals falling outside a distribution of implementation statuses of spatial reuse communication or multi user communication of entire subordinate terminals, and transmits a signal requesting the small number of terminals to be connected to the surrounding base station or transmits a signal inquiring of the surrounding base station acceptance of the small number of terminals.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: May 3, 2022
    Assignee: SONY CORPORATION
    Inventors: Ren Sugai, Kosuke Aio, Shigeru Sugaya
  • Patent number: 11323192
    Abstract: The present disclosure provides an adaptive modulation method for a naive Bayes classifier-based energy harvesting relay system. First, a sending end determines its modulation mode based on a status of a data buffer of a relay, so that sent data does not exceed a storage capability of the relay. Then, based on data sent by the sending end, and channel status information and energy harvesting status information within a period of time, the relay determines an optimal modulation mode used by the relay within the period of time. After that, the modulation mode, the channel status information, and the energy harvesting status information are used as training data to obtain a classification model based on a naive Bayes classifier algorithm. In this way, the relay can adaptively select a modulation mode when only knowing of channel information and energy information in a current timeslot.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: May 3, 2022
    Assignee: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
    Inventors: Qi Zhu, Kang Liu, Hongbo Zhu, Longxiang Yang
  • Patent number: 11310012
    Abstract: A user equipment (UE) for receiving information on a length of a reference signal (RS) sequence and information on an offset of the RS sequence and performing an RS sequence mapping to map the RS sequence to a physical resource block 0 (PRB0) of the UE within a bandwidth part (BWP) based on the length of the RS sequence and the offset of the RS sequence. The UE also transmits, to the network, the RS sequence.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: April 19, 2022
    Assignee: LG ELECTRONICS INC.
    Inventor: Yunjung Yi
  • Patent number: 11296857
    Abstract: Methods and techniques for slot format configuration in a Time Domain Duplex system to allow flexible assignment of resources between uplink and downlink, while avoiding Cross Link Interference. As standard slot ordering is provided together with rules to limit modification of slot format between slots such than an estimate of safe regions can be made.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 5, 2022
    Assignee: JRD COMMUNICATION (SHENZHEN) LTD
    Inventors: Bruno Jechoux, Umer Salim, Sebastian Wagner
  • Patent number: 11296913
    Abstract: A technology enabling a terminal to receive acknowledgement (ACK)/negative ACK (NACK) information about data transmitted from the terminal is provided. The method includes receiving cyclic shift information for a reference signal from the base station; transmitting, to the base station, the data and a reference signal which is cyclic-shifted using a cyclic shift value, the cyclic shift value being determined based on a dynamic cyclic shift value mapped one-to-one to the cyclic shift information for the reference signal; and receiving, from the base station, the ACK/NACK information about the transmitted data through a radio resource of a downlink channel, the radio resource of the downlink channel being identified based on a modifier mapped one-to-one to the cyclic shift information for the reference signal.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: April 5, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Taegyun Noh, Jae Young Ahn
  • Patent number: 11296914
    Abstract: A communication device and a communication method that transmit and receive wireless packets are provided. A communication device includes a control unit that determines a subcarrier to be a null tone according to information applied to a packet and a transmission unit that generates a multi-carrier signal in which the determined subcarrier is set as a null tone and wirelessly transmits the signal. The control unit determines a position of a subcarrier and the number of subcarriers to be a null tone or a position of a subcarrier in correspondence with the information and, in addition, changes a subcarrier to be a null tone according to temporal variation of the information.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: April 5, 2022
    Assignee: SONY CORPORATION
    Inventors: Kosuke Aio, Yuelin Ma, Shigeru Sugaya
  • Patent number: 11290312
    Abstract: A transmission apparatus that transmits a block signal including a plurality of data symbols, includes: a data-symbol generation unit that generates a data symbol; a symbol arrangement unit that arranges the data symbol and a same-quadrant symbol such that one same-quadrant symbol that becomes a signal point in a same quadrant in a complex plane is inserted per block at a predetermined position in each block signal to generate a block symbol; a CP insertion unit that inserts a Cyclic Prefix into the block symbol; and an interpolation unit that performs interpolation processing on the block symbol on which CP insertion has been performed.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 29, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Fumihiro Hasegawa, Hiroshi Nishimoto, Akihiro Okazaki, Masatsugu Higashinaka
  • Patent number: 11290211
    Abstract: For example, a wireless station may be configured to map a plurality of data symbols to Orthogonal Frequency-Division Multiplexing (OFDM) symbols in a plurality of spatial (space-time) streams, to map a plurality of modulated pilot sequences to the OFDM symbols according to a pilot mapping scheme, and to transmit an OFDM Multiple-Input-Multiple-Output (MIMO) transmission based on the plurality of spatial streams.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: March 29, 2022
    Assignee: INTEL CORPORATION
    Inventors: Artyom Lomayev, Alexander Maltsev, Michael Genossar, Claudio Da Silva, Carlos Cordeiro
  • Patent number: 11283496
    Abstract: A computer-implemented method, a computer program product, and a system include a processor(s) that produces a set of beamforming vectors, each vector produced based on a distinct set of parameters. To produce vector of the vectors, the processor(s) obtains, from receive antennas, data comprising a waveform comprising slots with boundaries, from a first collection window. The processor(s) determines the parameters (e.g., silent portion length and signal portion length) and determines which slots of the waveform contain signal operating instructions. The processor(s) aligns the slot boundaries, utilizing the data, based on determining which slots of the waveform contain signal operating instructions. The processor(s) extracts the signal portion and the silent portion, determines a covariance for each, and determines a vector and eigenvalue.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 22, 2022
    Assignee: PERSPECTA LABS INC.
    Inventors: Nicholas Chang, Eddie Fung, James Hodge
  • Patent number: 11283516
    Abstract: Wireless communication method and apparatus to enable communications between a plurality of endpoints and a satellite or terrestrial gateway integrated with a plurality of oblong shaped antenna arrays. The wireless communication method leverages data symbols that are orthogonally modulated. The method permits the use of a plurality of compact oblong shaped antenna arrays to increase network capacity and reduce endpoint power consumption.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: March 22, 2022
    Assignee: Hubble Network Inc
    Inventor: Ben Juda Wild
  • Patent number: 11283575
    Abstract: Networks that support 5G communication may support different numerologies across and even within a symbol, slot, or subframe. Sequences, such as reference signals or data scrambled with a scrambling code, may be transmitted on resources with such mixed numerologies. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment. The UE may be configured to receive an indication of assigned resources for communicating with a base station. The UE may also be configured to determine a numerology associated with the assigned resources, and to determine one or more indices based on the numerology. The UE may also generate a sequence based on the one or more indices and communicate with the base station based on the sequence.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 22, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Makesh Pravin John Wilson, Sumeeth Nagaraja, Sony Akkarakaran