Multi-receiver Or Interference Cancellation Patents (Class 375/148)
  • Patent number: 11876301
    Abstract: An antenna control device includes a weight unit in which weight values to be superimposed on transmission/reception signals are set for forming radiation patterns using a plurality of antennas and a weight synthesis unit that superposes the weight values on the transmission/reception signals. The antenna control device further includes an arrival direction detector that detects arrival directions of the reception signals, a distribution information calculator that calculates distribution information of the detected arrival directions, a signal quality calculator that calculates signal quality information of each of the radiation patterns, and a radiation pattern selector that selects a radiation pattern on the basis of the distribution information and signal quality information for the radiation patterns, and sets the weight values corresponding to the selected radiation pattern in the weight unit.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 16, 2024
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Satoru Yasui, Takahito Ishii, Keiju Ito, Teppei Shoji, Koji Yotsumoto
  • Patent number: 11843399
    Abstract: Examples described herein include sliding window methods for calculating frequency-localized weights for adaptive beamformers. A window of subcarriers may be used to calculate a cross-correlation vector, inverse covariance matrix, or other components used in a weight calculation for a particular subcarrier. In some examples, a next window of subcarriers may include additional subcarriers, and may not include other subcarriers. The previously-calculated cross-correlation vector, inverse covariance matrix, or other components may be updated in accordance with updates and downdates associated with the added and removed subcarriers. The updated components may be used to generate weights for a subcarrier in the next window.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: December 12, 2023
    Assignee: Tarana Wireless, Inc.
    Inventors: Omar Bakr, Stephen P. Bruzzone
  • Patent number: 11825387
    Abstract: Methods, systems, and devices for wireless communications are described. A device in communications with a second device may receive a message from the second device. After receiving, the device selects between a decode-and-forward (DF) or an amplify-and-forward (AF) transmission scheme for forwarding the message to a base station. The selection may be made using one or more trigger conditions associated with the transmitting device, the receiving device, or the base station, such as power availability at the device, processing capability of the device, or beam parameters such as beam width, array gain, or other conditions. After selecting, the device may use the selected transmission scheme for forwarding a packet from the second device to the base station.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: November 21, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanthan Raghavan, Jung Ho Ryu, Junyi Li, Tianyang Bai
  • Patent number: 11695507
    Abstract: A multiple access method, a multiple access transmitter, and a multiple access receiver includes performing, by a transmitter, channel coding on a bit sequence to determine a coded sequence. The method also includes interleaving and/or scrambling the coded sequence, and performing multidimensional constellation modulation on the interleaved and/or scrambled sequence; performing grid mapping on the modulated symbol sequence to determine a mapped sequence, and transmitting the mapped sequence. The method also includes receiving, by a receiver, mixed signals from multiple transmitters, the mixed signals are obtained by performing, by each of the multiple transmitters, interleaving and/or scrambling, multidimensional constellation modulation and grid mapping on data.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: July 4, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chuang Zhang, Qi Xiong, Chen Qian, Bin Yu, Chengjun Sun
  • Patent number: 11626850
    Abstract: An example method of operation may include identifying speakers and microphones connected to a network controlled by a controller, assigning a preliminary output gain to the speakers used to apply test signals, measuring ambient noise detected from the microphones, recording chirp responses from all microphones simultaneously based on the test signals, deconvolving all chirp responses to determine a corresponding number of impulse responses, and measuring average sound pressure levels (SPLs) of each of the microphones to obtain a SPL level based on an average of the SPLs.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: April 11, 2023
    Assignee: Biamp Systems, LLC
    Inventors: Eugene Goff, Ray Dippert, Matthew V. Kotvis, Samarth Behura
  • Patent number: 11626763
    Abstract: According to various embodiments, an electronic device comprises: a communication circuit for receiving a data communication signal including an interference signal by means of a power signal generated by a wireless power transmission device; and at least one processor, wherein the at least one processor can be configured to receive information related to the power signal from the wireless power transmission device through the communication circuit, estimate information about a channel with the wireless power transmission device, and use the communication circuit so as to remove, before decoding the data communication signal, the interference signal from the data communication signal on the basis of the information related to the power signal and the information about the channel Other various embodiments are possible.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: April 11, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seunghyun Lee, Jaeseok Park, Chongmin Lee, Sungbum Park, Sanghyuk Wi, Youngho Ryu
  • Patent number: 11546075
    Abstract: Methods, systems, and devices are disclosed for digital wireless communication, and more specifically, for the use of pilot sequences that improves performance of channel estimation. In one exemplary aspect, a method of wireless communication performed by a communication node is disclosed. The method includes determining, using a first index, a mask sequence from a plurality of pre-determined mask sequences, wherein the plurality of pre-determined mask sequences is determined based on permutations of values 1, ?1, i, and ?i or permutations of values 1+i, or 1?i, or ?1+i, or ?1?i; determining a Walsh sequence using a second index, wherein the Wash sequence has a same length as the mask sequence; generating a pilot sequence by combining the mask sequence and the Walsh sequence; and performing a wireless transmission using the pilot sequence.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: January 3, 2023
    Assignee: ZTE Corporation
    Inventors: Zhifeng Yuan, Jianqiang Dai
  • Patent number: 11533628
    Abstract: An apparatus and a method for allocating wireless channels are disclosed. For example, the method, by an aggregator, aggregates sensed information received from a plurality of sensing devices, by an analyzer, analyzes the sensed information that is aggregated and determines when an incumbent is not detected based on the analysis, and allocates, by a channel allocator, a wireless channel of the targeted frequency spectrum to a user equipment when the incumbent is not detected.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: December 20, 2022
    Assignee: Intel Corporation
    Inventors: Beeshanga Jayawickrama, Ying He, Markus Dominik Mueck, Biljana Badic, Killian Roth, Srikathyayani Srikanteswara, Zhibin Yu, Eryk Dutkiewicz
  • Patent number: 11513182
    Abstract: The present disclosure relates to a user equipment in a wireless communication system, an electronic device, a method and a storage medium. The user equipment in the wireless communication system according to the present disclosure comprises one or more processing circuits, the processing circuits being configured to execute the following operations: acquiring a downlink signal from an electronic device in the wireless communication system; estimating the angle of arrival (AOA) of the downlink signal, wherein at least the AOA and the position of the electronic device are used for estimating the position of the user equipment. By using the user equipment, electronic device, method and storage medium according to the present disclosure, the AOA of a downlink signal may be estimated when the user equipment is in an idle or initial access state, and the AOA may be used for estimating the position of the user equipment.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: November 29, 2022
    Assignee: SONY CORPORATION
    Inventors: Bin Sheng, Pingping Xu, Penshun Lu, Wenbo Zhang
  • Patent number: 11469784
    Abstract: One example includes a receiver system. The receiver system includes an analog-to-digital converter (ADC) configured to convert an analog input signal into a digital output signal at a sampling frequency. The receiver system also includes a spur correction system configured to receive the digital output signal and to estimate spurs associated with the digital output signal and to selectively correct a subset of the spurs associated with a set of frequencies that are based on the sampling frequency.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: October 11, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Aswath Vs, Sthanunathan Ramakrishnan, Sriram Murali, Sarma Sundareswara Gunturi, Jaiganesh Balakrishnan, Sashidharan Venkatraman
  • Patent number: 11425666
    Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may determine a set of power adjustment values for a set of symbols to be used to transmit a data signal in a slot. In some cases, each power adjustment value corresponds to a power adjustment to be applied when transmitting a respective symbol in the slot. The transmitting device may transmit a control signal to a receiving device indicating the set of power adjustment values. The transmitting device may transmit the data signal on the set of symbols in the slot, applying the indicated set of power adjustment values to the set of symbols. The receiving device may decode the data signal based on the indicated set of power adjustments.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: August 23, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Guy Wolf, Noam Zach, Sharon Levy
  • Patent number: 11424764
    Abstract: Examples described herein utilize multi-layer neural networks, such as multi-layer recurrent neural networks to decode encoded data (e.g., data encoded using one or more encoding techniques). The neural networks and/or recurrent neural networks have nonlinear mapping and distributed processing capabilities which are advantageous in many systems employing the neural network decoders and/or recurrent neural networks. In this manner, neural networks or recurrent neural networks described herein are used to implement error correction coding (ECC) decoders.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 23, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Fa-Long Luo
  • Patent number: 11405948
    Abstract: Examples refer to communication networks between user equipments, UEs, with other devices, such as a base station, BS. Examples refer to communication methods, e.g., for uplink, UL. A joint-resource pool (JRP) is defined.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: August 2, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Khaled Shawky Hassan Hussein, Thomas Wirth, Thomas Fehrenbach, Thomas Haustein
  • Patent number: 11368347
    Abstract: In a broadband wireless communication system, a spread spectrum signal is intentionally overlapped with an OFDM signal, in a time domain, a frequency domain, or both. The OFDM signal, which inherently has a high spectral efficiency, is used for carrying broadband data or control information. The spread spectrum signal, which is designed to have a high spread gain for overcoming severe interference, is used for facilitating system functions such as initial random access, channel probing, or short messaging. Methods and techniques are devised to ensure that the mutual interference between the overlapped signals is minimized to have insignificant impact on either signal and that both signals are detectable with expected performance by a receiver.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: June 21, 2022
    Assignee: NEO WIRELESS LLC
    Inventors: Xiaodong Li, Titus Lo, Kemin Li, Haiming Huang
  • Patent number: 11361195
    Abstract: Incremental update of a neighbor graph via an orthogonal transform based indexing is disclosed. One example is a system including a hash transform module to apply an orthogonal transform to a data object in a data stream, and to associate the data object with a collection of ordered hash positions. An indexing module retrieves an index of ordered key positions, where each key position is indicative of data objects in the data stream that have a hash position at the key position. A neighbor determination module determines a ranked collection of neighbors for the data object in a neighbor graph, where the ranking is based on the index. A graph update module incrementally updates the neighbor graph by including the data object as a neighbor for a selected sub-plurality of data objects in the ranked collection.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: June 14, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Mehran Kafai, Kyriaki Dimitriadou, April Slayden Mitchell
  • Patent number: 11354163
    Abstract: A method of placing a virtual machine may include: calculating virtual machine workload information, which is a load of the physical machine applied by the virtual machine through a predetermined method of calculating a workload on the basis of information stored in storage and related to operations of the first physical machine and the second physical machine; calculating initial predicted virtual load information related to an initial predicted virtual load related to a load of the physical machine predicted due to the virtual machine for a predetermined period on the basis of the virtual machine workload; calculating search placement information related to a search placement which is a placement of the virtual machine on the first physical machine and the second physical machine through a predetermined method of calculating a search placement; and placing the virtual machine on the physical machine again on the basis of the selected search placement.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: June 7, 2022
    Assignee: OKESTRO CO., LTD
    Inventors: Ho Yeong Yun, Young Gwang Kim, Min Jun Kim
  • Patent number: 11349555
    Abstract: A technology is described for direction finding. An example of the technology can include executing stages of an N stage search for a direction finding estimate of a plane wave X. The stages of the N stage search include searching a search space in a calibration set having a plurality of points in space and calculating a direction finding estimate, wherein a first search space is a coarse set of points in space and subsequent search spaces selected for subsequent stages of the N stage search are increasingly finer sets of points in the space, and a solution for the direction finding estimate output by a stage of the N stage search is used to select a next search space for a next stage of the N stage search. A direction finding estimate output by a final stage of the N stage search is the final direction finding estimate.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: May 31, 2022
    Assignee: Raytheon Company
    Inventors: James Furgerson, William P. Harokopus, Patrick W. Cunningham, John Clancy
  • Patent number: 11316544
    Abstract: A front-end module includes a substrate, and a circuit that is provided in or on the substrate, wherein the circuit includes a first filter to filter a high-frequency signal, a first low noise amplifier (LNA) to amplify a signal filtered by the first filter, a first inductor disposed between the first filter and the first LNA, a second filter to filter the high-frequency signal, a second LNA to amplify a signal filtered by the second filter, and a second inductor disposed between the second filter and the second LNA, and a coil axis of the first inductor and a coil axis of the second inductor are perpendicular or substantially perpendicular to each other.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: April 26, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Atsushi Horita
  • Patent number: 11313943
    Abstract: A vehicle radar system (3) having at least one transceiver arrangement (7) arranged to generate, transmit and receive reflected radar signals. The transceiver arrangement (7) includes an ADC arrangement (10) that is arranged to output a digital IF signal (20) in a time domain to a DSP arrangement (12). A first DSP function (12a) is arranged to: identify and retain sample points of the digital IF signal (20) in a spectral domain with signal components that exceed a certain level threshold, such that an approximation signal (36) is formed in the time domain, identify possible sections (37) of the digital IF signal (20) in the time domain that exhibit interference exceeding an interference threshold, determine whether or not to replace such sections (37) with equivalent sections (38) of the approximation signal (36), and if applicable, replace such sections (37) with equivalent sections (38) of the approximation signal (36).
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 26, 2022
    Assignee: VEONEER SWEDEN AB
    Inventors: Jonathan Moss, Andreas LeFevre
  • Patent number: 11233626
    Abstract: An operation method of a base station in a time division duplex communication system includes: a step for setting a time period in which a terminal can transmit an uplink in a downlink period; a step for generating a sparse vector signal including information about the time period; and a step for transmitting the sparse vector signal to the terminal. In addition, an operation method of the terminal in the time division duplex communication system includes: a step for receiving a part of a sparse vector signal from the base station; a step for recovering the received sparse vector signal by compressed sensing; and a step for transmitting uplink data in a time period instructed in a downlink period based on the basis of the recovered signal.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: January 25, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Byonghyo Shim, Wonjun Kim, Hyoungju Ji
  • Patent number: 11147045
    Abstract: A wireless communication device may receive with one of N antennas a signal processing message indicating a number up to N signals to process. Each of the N antennas may used to receive a communication. The indicated number of up to N signals may be processed and data from the indicated number of up to N signals recovered.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: October 12, 2021
    Assignee: III HOLDINGS 1, LLC
    Inventors: Robert Warner, Jack Winters, James June-Ming Wang
  • Patent number: 11140017
    Abstract: Embodiments of the present invention provide a data transmission method and apparatus, and the method includes: modulating to-be-sent information bits according to a lower order constellation diagram, and generating 4m lower order modulation symbols; multiplying a precoding matrix Q by a column vector including every four lower order modulation symbols in the 4m lower order modulation symbols, to obtain 4m to-be-sent higher order modulation symbols corresponding to a higher order constellation diagram; and respectively and correspondingly sending the 4m to-be-sent higher order modulation symbols on different carriers of two antennas. The to-be-sent higher order modulation symbols include some or all to-be-sent information bits. Therefore, the same signal can be simultaneously sent on different carriers of multiple antennas, and frequency diversity and space diversity are implemented, so that transceiving performance of data transmission is improved.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: October 5, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Tao Wu
  • Patent number: 11133909
    Abstract: Systems, methods, and devices can be utilized to schedule at least one Hybrid Automatic Repeat Request (HARQ) transmission and at least one HARQ feedback message in the same Physical Resource Block (PRB). A HARQ transmission can be scheduled in a mini-slot of the PRB. Accordingly, latencies associated with transmitting and receiving the PRB can be reduced, while the high reliability of HARQ can be retained. Implementations can be applied to 5G technologies such as Ultra Reliable Low Latency Communications (URLLCs) and enhanced Mobile BroadBand (eMBB), as well as other low-latency communications. A method can include detecting a fading condition of a device; scheduling, in one or more mini-slots of a PRB, a HARQ transmission based at least in part on the fading condition; and transmitting, to the device, the HARQ transmission in the one or more mini-slots of the PRB.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: September 28, 2021
    Assignee: T-Mobile USA, Inc.
    Inventors: Shuqing Xing, Wafik Abdel Shahid, Scott Francis Migaldi
  • Patent number: 11108458
    Abstract: This disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate after a 4G communication system such as LTE. An apparatus that combines a plurality of radio signals according to an embodiment of the present invention comprises: a plurality of antennas which receive the plurality of radio signals; a baseband modem which generates channel estimation information related to the plurality of radio signals and combines the plurality of radio signals on the basis of combining control information; and a controller which generates the combining control information on the basis of the channel estimation information and preset configuration information and transmits the combining control information to the baseband modem.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: August 31, 2021
    Inventors: Joohyun Lee, Seijoon Shim, Hayoung Yang
  • Patent number: 11095314
    Abstract: Devices and methods described herein decode a sequence of coded symbols by guessing noise. In various embodiments, noise sequences are ordered, either during system initialization or on a periodic basis. Then, determining a codeword includes iteratively guessing a new noise sequence, removing its effect from received data symbols (e.g. by subtracting or using some other method of operational inversion), and checking whether the resulting data are a codeword using a codebook membership function. This process is deterministic, has bounded complexity, asymptotically achieves channel capacity as in convolutional codes, but has the decoding speed of a block code. In some embodiments, the decoder tests a bounded number of noise sequences, abandoning the search and declaring an erasure after these sequences are exhausted. Abandonment decoding nevertheless approximates maximum likelihood decoding within a tolerable bound and achieves channel capacity when the abandonment threshold is chosen appropriately.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: August 17, 2021
    Assignees: Massachusetts Institute of Technology, National University of Ireland Maynooth
    Inventors: Muriel Medard, Kenneth R. Duffy
  • Patent number: 11079467
    Abstract: A technique is provided for estimating time of arrival of a signal transmitted as a pulse and received as a sum of pulses. The received signal is filtered with a novel filter that lowers the early side lobes of the received signal to noise level. A first energy rise point is identified at a point of the main lobe of the filtered received signal, at which the energy is higher than the noise by a predetermined level. Starting from the identification of the first energy rise points, the time of arrival is estimated via curve matching, in which the shape of the filtered received signal is matched to the shape of a reference curve composed by a sum of one or more reference curves that are shifted both in time and in energy. The reference curves are found by applying to the transmitted signal the same filter applied to the received signal.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: August 3, 2021
    Assignee: Nestwave SAS
    Inventor: Rabih Chrabieh
  • Patent number: 11068514
    Abstract: A method and a computer software for managing a database of a computer network are disclosed which comprises: selecting a data sample, dividing the data sample into an N×M matrix having equal cells, grouping adjacent cells into a plurality of memory blocs by a least differential sum method, constructing a decision tree based on the partitions of the memory blocs, labeling each of the memory blocs based on the decision tree; storing and retrieving data points into the memory blocs; and linking the memory blocs together by a set of resolution nets.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: July 20, 2021
    Assignee: VIET NAM NATIONAL UNIVERSITY HO CHI MINH CITY
    Inventors: Vu Tran Pham, Hai Duc Nguyen
  • Patent number: 11057064
    Abstract: A Radio Frequency Interference (RFI) estimation device for generating an estimated RFI signal includes a combiner, a first multiplier and a second multiplier. The combiner is configured to combine a first digital signal and a second signal to generate the estimated RFI signal. The first multiplier is configured to generate the first digital signal according to an in-phase signal and a first cosine signal. The second multiplier is configured to generate the second digital signal according to a quadrature-phase signal and a first sine signal. The first cosine signal and the first sine signal are generated based on a frequency and the in-phase signal and the quadrature-phase signal are generated based on the frequency and one or more harmonics of the frequency.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: July 6, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chi-Hsi Su, Liang-Wei Huang
  • Patent number: 11051330
    Abstract: A base station may transmit downlink control information (DCI) scheduling communications between the base station and a UE. The DCI is in a fallback DCI format. Based on whether or not the DCI is in a UE specific search space with cyclic redundancy check (CRC) scrambled by a UE ID of the UE, data transmitted by the base station or by the UE according to the DCI may be scrambled by a sequence that is initialized with a configurable parameter, or initialized with a cell ID.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: June 29, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Amine Maaref, Mohammadhadi Baligh, Jianglei Ma
  • Patent number: 11038727
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a first set of parameters based at least in part on a first reference signal received from a first transmit receive point (TRP) and a second set of parameters based at least in part on a second reference signal received from a second TRP; determine a common parameter using the first set of parameters and the second set of parameters; and perform a tracking loop operation using the common parameter or the first set of parameters and the second set of parameters, wherein the tracking loop operation comprises at least one of a frequency tracking loop operation or a time tracking loop operation. Numerous other aspects are provided.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: June 15, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Mostafa Khoshnevisan, Xiaoxia Zhang, Jing Sun, Farhad Meshkati, Rajat Prakash, Yongbin Wei
  • Patent number: 11025394
    Abstract: A wireless communications system that uses adaptive arrays is disclosed in which the capacity is optimized. A method for optimizing the capacity of a wireless communications system that uses adaptive arrays is also disclosed. The wireless communication system may be a point to multi-point (P2MP) and/or a multi-point to multi-point (MP2MP) STAP system.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: June 1, 2021
    Assignee: Tarana Wireless, Inc.
    Inventors: Omar Bakr, Dale Branlund
  • Patent number: 11025295
    Abstract: There is described a method of determining an MRC coefficient vector for a RAKE receiver. The method comprises (a) estimating a channel impulse response vector, (b) estimating a noise variance vector, (c) calculating a multiplication factor vector based on the estimated channel impulse response vector and the estimated noise variance vector, (d) calculating a modified channel impulse response vector by multiplying each element in the estimated channel response vector with a corresponding element in the multiplication factor vector, and (e) calculating the MRC coefficient vector as the complex conjugate of the modified channel impulse response vector. There is also described a corresponding device, an UWB receiver, a computer program and a computer program product.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: June 1, 2021
    Assignee: NXP B.V.
    Inventors: Amit Kumar Dutta, Radha Srinivasan, Mohammad Areef
  • Patent number: 11018746
    Abstract: An outcome-based receiver beam tuning is provided. A base station device can transmit a reference signal with a group of symbols corresponding to different transmit beams, while the reference signal instructs the user equipment to not perform receive beam sweeping. The user equipment device can report the transmit beam with the highest signal strength. The base station device can then transmit a reference signal using the transmit beam with the highest signal strength, while also informing the user equipment device to perform receive beam sweeping. By comparing the receive beam with the highest signal strength to the signal strength of the best transmit beam, the base station device can determine the density (e.g. periodicity) of CSI-RS with repetition “ON” transmission.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 25, 2021
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Xiaoyi Wang, Salam Akoum
  • Patent number: 11018780
    Abstract: A network device receives first data associated with a first transmission received at a second antenna from a first antenna and stores the first data as a first antenna profile associated with the second antenna. The network device uses the stored first antenna profile for determining at least one first transmission characteristic associated with a third antenna transmitting to the second antenna.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: May 25, 2021
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: Nicholas D. Butcher
  • Patent number: 10999777
    Abstract: To improve line utilization efficiency in short-cycle data collection, it is provided a method of managing communication in a communication system, the communication system including: an aggregation unit configured to receive information through a communication path from a plurality of terminals, which are sources of information transmission; and a reservation unit configured to determine, for each of the plurality of terminals, timing at which the terminal transmits a signal, the method comprising steps of: receiving, by the reservation unit, a relative time specified by a user as a time at which the terminal transmits the information; and determining, by the reservation unit, as scheduling information, an absolute time unique throughout the communication system so that interference with another communication session is avoided when the terminal holds communication at the relative time.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: May 4, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Mikio Kuwahara, Makiko Satoh
  • Patent number: 10992330
    Abstract: A system that incorporates aspects of the subject disclosure may perform operations including, for example, identifying network communication degradation associated with communications taking place in part over a radio frequency link between a plurality of communication devices, directing one or more communication devices of the plurality of communication devices to send one or more test packets, receiving the one or more test packets, and analyzing the one or more test packets to locate a source of the network communication degradation at one or more layers of a multi-layered communication protocol. Other embodiments are disclosed.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: April 27, 2021
    Assignee: ISCO International, LLC
    Inventor: Amr Abdelmonem
  • Patent number: 10979111
    Abstract: A signal processing method includes: receiving by a terminal device, first precoding indication information, where the first precoding indication information is used for indicating related information for precoding a data signal; and processing, by the terminal device, a received data signal based on the first precoding indication information. And another signal processing method, a terminal device, a network device and a storage medium are provided.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 13, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Wenhong Chen
  • Patent number: 10977001
    Abstract: A processing unit performs multiply-and-accumulate (MAC) operations on asymmetrically quantized data. The processing unit includes a MAC hardware unit to perform the MAC operations on a first data sequence and a second data sequence to generate an asymmetric MAC output. Both the first data sequence and the second data sequence are asymmetrically quantized. The processing unit further includes an accumulator hardware unit to accumulate the first data sequence concurrently with the MAC operations to generate an accumulated output. The processing unit further includes a multiply-and-add (MAD) hardware unit to multiply the accumulated output with a second offset to generate a multiplication output, and to add the multiplication output, the asymmetric MAC output and a pre-computed value calculated before runtime to generate a final output. The second offset indicates an amount of asymmetry of the second data sequence with respect to zero.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: April 13, 2021
    Assignee: MediaTek Inc.
    Inventors: Chien-Hung Lin, Pei-Kuei Tsung, Chi-Ming Chen, Meng-Hsuan Cheng, ShengJe Hung
  • Patent number: 10965326
    Abstract: A front-end module includes a substrate, and a receiving circuit that is provided in or on the substrate and in which CA is executed. The receiving circuit includes a first filter, a first inductor, and a first LNA disposed on a first path, and a second filter, a second inductor, and a second LNA disposed on a second path. A coil axis of the first inductor and a coil axis of the second inductor are different from each other.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: March 30, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Atsushi Horita
  • Patent number: 10965274
    Abstract: In accordance with an embodiment, a method of operating an RF system includes filtering a first wideband RF signal using a wideband filter bank. Filtering the first RF signal includes separating the first wideband RF signal into frequency cluster signals, where each frequency cluster signal of the frequency cluster signals includes different frequency ranges, the first wideband RF signal includes multiple RF bands, and each of the different frequency ranges comprises a plurality of RF bands of the multiple RF bands. The method further includes band stop filtering at least one of the frequency cluster signals to produce a band stopped frequency cluster signal.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: March 30, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Ruediger Bauder, Hans-Joerg Timme, Stefan Helmut Schmalzl, Peter Pfann
  • Patent number: 10952210
    Abstract: Aspects of the present disclosure provide techniques and apparatus for determining presence and/or bandwidth of reference signals (RS) in systems that utilize narrowband regions of wider system bandwidth for wireless communications, such as enhanced machine type communication(s) (eMTC) systems and/or narrowband Internet-of-Things (NB-IoT) systems. Aspects provide a method for wireless communications by a user equipment (UE) operating in a narrowband region of a wider system bandwidth. The method generally includes determining at least one of: a presence of one or more RS in a subframe or a bandwidth of the one or more RS, wherein the bandwidth of the one or more RS is greater than or equal to a bandwidth of the narrowband region; and monitoring for the one or more RS in the subframe based on the determination.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 16, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Wanshi Chen, Hao Xu, Alberto Rico Alvarino
  • Patent number: 10942279
    Abstract: An apparatus, a method, a method of manufacturing an apparatus, and a method of constructing an integrated circuit are provided. The apparatus includes a memory and a processor configured to conduct acquisition of K values with N peaks, where K and N are integers; store the K values in the memory; select J of the N peaks and include the J peaks in track, where J is an integer less than or equal to N; combine acquisition and track non-coherent summations (NCSs) of coherent correlations in a metric; and form a measurement unless the metric indicates that the measurement should be abandoned.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: March 9, 2021
    Inventor: Gary Lennen
  • Patent number: 10943334
    Abstract: A system is configured to repair artefacts in image data when representing vehicle surroundings. This involves: detecting an artefact-comprising area of a vehicle camera for a first time point, creating a reconstructed version of the artefact-comprising area from image data of an adjacent image area, determining a sample point of the artefact-comprising area, transforming the sample point to a new location predicted for a second time point, determining whether the new location still lies within the artefact-comprising area, and if so updating the artefact-comprising area in the image for the second time point by using motion-compensated image data from the reconstructed version of the sample point from the first time point.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 9, 2021
    Assignee: Continental Automotive GmbH
    Inventors: Markus Friebe, Sukumar Srikanth, Pavannag Prabhakar
  • Patent number: 10915072
    Abstract: A servo control device to execute an operation in a discrete time system may include a velocity feedback path having a difference means calculating a pseudo-velocity from a detected position and a lowpass filter, and a PI control means executing a proportional integration control operation on a deviation between the pseudo-velocity and the position deviation to create a drive command for the driver. The velocity feedback path includes a first gain means applying a first gain to the pseudo-velocity, a delay means delaying the pseudo-velocity, and a second gain means applying a second gain to the delayed pseudo-velocity. A sum of an output of the first gain means and the second gain means is inputted to the lowpass filter, and “Fa(z)=1/(1?z?1Fb(z))” is satisfied where a transfer function of the PI control means is Fa(z), and a transfer function of the lowpass filter is Fb(z).
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: February 9, 2021
    Assignee: NIDEC SANKYO CORPORATION
    Inventor: Akihiro Ito
  • Patent number: 10911129
    Abstract: In one embodiment, an apparatus includes: an antenna switch to receive a first radio frequency (RF) signal from a first antenna and a second RF signal from a second antenna and controllable to output a selected one of the first and second RF signals; an RF circuit to receive and process the first and second RF signals; at least one mixer to downconvert the first and second RF signals to first and second baseband signals; and an antenna diversity control circuit to receive sub-symbol portions of a first plurality of symbols of the first baseband signal and sub-symbol portions of a second plurality of symbols of the second baseband signal, and control the antenna switch to output one of the first and second RF signals, based at least in part on one or more of the sub-symbol portions of the first and second pluralities of symbols.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: February 2, 2021
    Assignee: SILICON LABORATORIES INC.
    Inventors: Hendricus De Ruijter, Antonio Torrini, Yan Zhou, David Trager
  • Patent number: 10883829
    Abstract: Various embodiments each include at least one of systems, methods, devices, and software for GNSS simultaneous localization and mapping (SLAM). The disclosed techniques demonstrate that simultaneous localization and mapping (SLAM) can be performed using only GNSS SNR and geo-location data, collectively termed GNSS data henceforth. A principled Bayesian approach for doing so is disclosed. A 3-D environment map is decomposed into a grid of binary-state cells (occupancy grid) and the receiver locations are approximated by sets of particles. Using a large number of sparsely sampled GNSS SNR measurements and receiver/satellite coordinates (all available from off-the-shelf GNSS receivers), likelihoods of blockage are associated with every receiver-to-satellite beam. Loopy Belief Propagation is used to estimate the probabilities of each cell being occupied or empty, along with the probability of the particles for each receiver location.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: January 5, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Andrew T. Irish, Jason T. Isaacs, Francois Quitin, Joao P. Hespanha, Upamanyu Madhow
  • Patent number: 10880678
    Abstract: A time of arrival of a signal received by a receiving device over a wireless channel is estimated by identifying by the receiving device a location in the time domain of a first path component in a waveform of the received signal, which includes applying a filter to the waveform; identifying in the waveform an observation window associated with an energy rise in the waveform; correlating the identified observation window in the waveform with correlator sequences, and determining a time of arrival offset of the first path component from results of correlating the observation window with the correlator sequences. The properties of the correlator sequences depend on properties of the filter such that the correlator sequences account for the filtering of the waveform during the correlating, the correlator sequences reduce the effect of colored noise after hypothetical first path components; and the correlator sequences correspond to different time shifts of a hypothetical first path component.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: December 29, 2020
    Assignee: Nestwave SAS
    Inventor: Rabih Chrabieh
  • Patent number: 10790871
    Abstract: According to an embodiment there is provided a method of radio resource allocation performed in a gateway or network server communicatively connected to a plurality of wireless nodes. The method comprises computing, for each spreading factor out of a number of spreading factors, a probability of successful receipt of an uplink communication from a wireless node from the plurality of wireless nodes based on spreading factor settings of the plurality of wireless nodes, determining, for a given link level budget, a spreading factor that provides a maximum likelihood of successfully completing uplink communications and determining, for the determined spreading factor, a transmission power that provides the given link level budget.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: September 29, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shengyang Li, Usman Raza, Aftab Khan
  • Patent number: 10785775
    Abstract: The disclosure discloses a Network Assisted Interference Cancellation and Suppression (NAICS) method, apparatus, system and related device, for NAICS based on existing hardware configuration of a terminal. A first NAICS method includes the following steps. NAICS capability information reported by a User Equipment (UE) is received. NAICS assisted signalling is issued to the UE according to the NAICS capability information and/or interference information of a neighbouring base station. A second NAICS method includes the following steps. Transmission Modes (TM) are divided into N TM subsets, each TM subset including at least one TM, N being a natural number. A neighbouring base station is notified of a TM subset scheduled for an interfering UE, wherein the interfering UE includes a UE located at the edge of a coverage area of the neighbouring base station, and the notified TM subset does not include a high-complexity TM.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: September 22, 2020
    Assignee: China Mobile Communications Corporation
    Inventors: Jing Jin, Hui Tong, Fei Wang, Yuchao Liu, Zhenping Hu
  • Patent number: 10779243
    Abstract: In one implementation, a wireless communication terminal includes a primary antenna array and a first controller configured to steer a main beam of the primary antenna array in a desired direction. The wireless communication terminal also includes an auxiliary antenna array and a second controller configured to control complex weights to be applied by at least some antenna elements of the auxiliary antenna array to corresponding variants of a second signal received by the at least some auxiliary antenna elements. Furthermore, the wireless communication terminal includes at least one signal combiner configured to combine variants of the second signal received from auxiliary antenna elements into an interfering signal that models interference from a co-located wireless communication terminal and subtract the interfering signal from variants of the first signal received from antenna elements of the principal antenna array to produce an interference mitigated signal.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: September 15, 2020
    Assignee: IRIDIUM SATELLITE LLC
    Inventor: Jeffrey Francis Bull