Fourier Transform Patents (Class 370/210)
  • Patent number: 11349966
    Abstract: An example according to the present disclosure relates to a technique for identifying a wireless LAN (WLAN) packet. For example, when a physical protocol data unit (PPDU) includes a legacy signal field, a field contiguous to the legacy signal field may be used to identify a type of the PPDU. A field contiguous to the legacy signal field may include information indicating that the PPDU is an extreme high throughput (EHT) PPDU. The field contiguous to the legacy signal field may include at least one of information related to a frame format, a transmission opportunity, an STA ID, and/or a bandwidth.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: May 31, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Dongguk Lim, Eunsung Park, Sunwoong Yun, Jinsoo Choi
  • Patent number: 11343820
    Abstract: Methods and apparatuses of resource allocation for wireless communication are presented. In an example, a user equipment may contain radio circuitry and processing circuitry such that the user equipment is configured to obtain a set of multiple indices, where each index in the set of multiple indices corresponds to a different uplink resource allocation from a set of uplink resource allocations formed from twelve contiguous subcarriers. In an aspect, the set of uplink resource allocations includes an allocation of the twelve contiguous subcarriers, two allocations of six contiguous subcarriers, four allocations of three contiguous subcarriers, and twelve allocations of a single subcarrier. In a further aspect, the user equipment can receive an index indication corresponding to an index from the set of multiple indices from the base station. Also, the user equipment can transmit data to the base station using the resource allocation corresponding to the received index indication.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: May 24, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Vidit Saxena, Johan Bergman, Yufei Blankenship, Xingqin Lin
  • Patent number: 11337194
    Abstract: A disclosure of the present specification provides a new PUCCH format for allowing increased UCI HARQ-ACK; including CSI to be transmitted in an environment in which an enhanced carrier aggregation technology is used so that cells, the number of which exceeds five and is a maximum of X e.g., 32, can be aggregated.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: May 17, 2022
    Assignee: LG Electronics Inc.
    Inventors: Daesung Hwang, Suckchel Yang, Seungmin Lee
  • Patent number: 11290963
    Abstract: An information sending method, including obtaining, by a network device, first indication information, where the first indication information indicates a magnitude relationship between a transmit power of a first signal received by a terminal device and a transmit power of a reference signal received by the terminal device, and the first signal is a synchronization signal, and sending the first indication information from the network device to the terminal device.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 29, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hengjin Liu, Qiming Li, Zhe Jin, Zhe Chen
  • Patent number: 11283658
    Abstract: Methods and apparatus for phased-based pre-carrier signal detection in a communication system are described. In embodiments, inphase and quadrature (IQ) data is generated from a received signal. A current phase delta value is determined from the IQ data and combined with existing phase delta value, such as an averaged phase delta value, which is compared with a threshold value to determine if a pre-carrier signal in the received signal has ended.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: March 22, 2022
    Assignee: Raytheon Company
    Inventors: Megan J. Roberts, Michael R. Gabrovsek, Shawn Henderson
  • Patent number: 11277786
    Abstract: A system facilitating compact signaling design for reserved resource configuration via a multi-dimensional bitmap is provided for a wireless communication system. A method comprises: determining a multi-dimensional bitmap (MDB) in time and frequency domains, wherein the time domain is represented by an orthogonal frequency division multiplexed (OFDM) symbol and the frequency domain is represented by an OFDM subcarrier. The determining comprises: selecting a group of reserved resource allocations of the MDB in which data information is not to be communicated; assigning a first value for the OFDM multiplexed symbol and the OFDM subcarrier according to a location of elements of the group of reserved resource allocations; and assigning, to other portions of the MDB other than the group of reserved resource allocations, a second value distinct from the first value. The method also comprises facilitating, by the device, transmitting the MDB to a mobile device.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: March 15, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Xiaoyi Wang, Arunabha Ghosh, Salam Akoum, Ralf Bendlin
  • Patent number: 11271701
    Abstract: Wireless communications systems and methods related to downlink (DL) control channel communications are provided. A wireless communication device identifies a search space set including a plurality of PDCCH candidate search spaces for a downlink control channel. The wireless communication device determines that a first resource associated with a first PDCCH candidate search space of the plurality of PDCCH candidate search spaces overlaps with a preconfigured resource. The wireless communication device monitors for a downlink control message over the downlink control channel by excluding monitoring in at least the first PDCCH candidate search space based on the determining.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: March 8, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Heechoon Lee, Wanshi Chen, Peter Gaal, Jing Sun, Joseph Binamira Soriaga
  • Patent number: 11245454
    Abstract: Certain aspects of the present disclosure provide techniques for reporting explicit channel state information (CSI) with spatial and time domain compression.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: February 8, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Liangming Wu, Yu Zhang, Chenxi Hao, Qiaoyu Li, Hao Xu
  • Patent number: 11216249
    Abstract: A method for designing a system on a target device includes identifying a length for a carry chain that is supported by predefined quanta of a resource on the target device. A plurality of logical adders is mapped onto a single logical adder implemented on the carry chain subject to the identified length to increase logic utilization in a design for the system.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: January 4, 2022
    Assignee: Intel Corporation
    Inventors: Martin Langhammer, Gregg William Baeckler
  • Patent number: 11212151
    Abstract: Methods, systems, and devices for wireless communications are described. Pre-discrete Fourier transform (DFT) time-domain spreading codes may be applied for UE multiplexing for uplink control information (e.g., over shared resources of an uplink slot). For example, a moderate number of UEs may be multiplexed within the same slot by having each UE spread modulation symbols before DFT-spreading by different spreading code. For orthogonality across UEs, the pre-DFT spreading codes may be selected as orthogonal cover codes (OCCs). The spreading sequences can be generated from a set of any orthogonal sequences or generated from unitary matrices. In some cases, orthogonality in the time domain may be kept as well as a frequency division multiplexed (FDM) structure in the frequency domain. For such property, a Fourier basis OCC design may be used. In some other examples, a Hadamard matrix based OCC design may be used.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: December 28, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Seyong Park, Yi Huang, Renqiu Wang, Sony Akkarakaran, Peter Gaal, Tao Luo
  • Patent number: 11206120
    Abstract: A method, network node and wireless device for waveform selection are provided. A method includes selecting a waveform based on one of a modulation and coding scheme, MCS, a resource allocation, and transport block size, TBS, and transmitting using the selected waveform.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: December 21, 2021
    Inventors: Daniel Chen Larsson, Robert Baldemair, Jung-Fu Cheng, Ravikiran Nory, Stefan Parkvall
  • Patent number: 11201718
    Abstract: There is disclosed a method of operating a network node in a radio access network. The method includes transmitting first numerology information indicating a first numerology for a carrier, the first numerology having a first subcarrier spacing and a first frequency reference. The method also includes transmitting a frequency shift indication indicating a second frequency reference for a second numerology for the same carrier, the frequency shift indication indicating the second frequency reference in relation to the first frequency reference. The disclosure also pertains to related methods and devices.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: December 14, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Robert Baldemair, Erik Dahlman, Asbjörn Grövlen, Stefan Parkvall
  • Patent number: 11201654
    Abstract: Disclosed herein is a method of receiving a channel state information-reference signal (CSI-RS) of a user equipment (UE) in a wireless communication system, including receiving CSI-RS resource information about a CSI-RS resource location having the CSI-RS mapped thereto, from a base station and receiving the CSI-RS through a CSI-RS resource at a location determined based on the CSI-RS resource information, wherein the CSI-RS resource information includes an index value indicating a location of a CSI-RS resource element where the CSI-RS is transmitted, a period and offset information of a subframe where the CSI-RS is transmitted, and information on a number of antenna ports where the CSI-RS is transmitted, wherein when the index value indicates locations of different CSI-RS resource elements by types of the subframe where the CSI-RS is transmitted and the CSI-RS is set to be transmitted alternately through a normal subframe and a special subframe within one wireless frame, the location of the CSI-RS resource i
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: December 14, 2021
    Assignee: LG Electronics Inc.
    Inventors: Jonghyun Park, Kijun Kim, Haewook Park
  • Patent number: 11190277
    Abstract: Upon receiving a communications signal conveying symbols at a symbol period T, a receiver applies filter coefficients to a digital representation of the communications signal, thereby generating filtered signals characterized by a substantially raised cosine shape in the frequency domain with a roll-off factor ?, where components of the filtered signals correspond to angular frequencies ? = - ? ? ( 1 + ? ) T ? … - ? ? ( 1 - ? ) T , + ? ? ( 1 - ? ) T ? … + ? ? ( 1 + ? ) T . The receiver calculates first-order components from a first phase derivative of the components at a first differential distance, second-order components from a second phase derivative of the first-order components at a second differential distance, and composite second-order components from an average of the second-order components over multiple time intervals.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: November 30, 2021
    Assignee: CIENA CORPORATION
    Inventors: Tung Trong Nguyen, Timothy James Creasy, Shahab Oveis Gharan
  • Patent number: 11177922
    Abstract: Various embodiments disclosed herein provide for efficient configuration of demodulation reference signals in beamformed wireless communications systems. In an embodiment, the transmitter can signal the location of demodulation reference signals (DMRS) by including an indicator bit in downlink control information indicating which DMRS scheme is used in the transmission. A first DMRS scheme can let the user equipment (UE) device know that the DMRS position for the PDSCH carrying the RMSI is as signaled on the master information block (MIB)—referred to as PDSCH Mapping Type A. A second DMRS scheme can let the UE device know that the DMRS position for the PDSCH carrying the RMSI is the first orthogonal frequency division multiplexing (OFDM) symbol of said PDSCH allocation—referred to as PDSCH mapping type B).
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: November 16, 2021
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Ralf Bendlin, Thomas Novlan, Xiaoyi Wang, Arunabha Ghosh
  • Patent number: 11171715
    Abstract: Provided is a control device that controls flight vehicles having an antenna for forming a cell on the ground to provide a wireless communication service to a user terminal in the cell. The control device includes a replacement control unit that controls replacement of a first flight vehicle covering an object area on the ground by means of a cell with a second flight vehicle. The replacement control unit controls the first flight vehicle and the second flight vehicle such that the second flight vehicle moves to a location corresponding to the location of the first flight vehicle, the second flight vehicle and the first flight vehicle start providing a wireless communication service to a user terminal by Coordinated Multiple Point transmission/reception (CoMP), and then the first flight vehicle stops forming its cell.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: November 9, 2021
    Assignee: HAPSMobile Inc.
    Inventors: Ryoji Hirai, Jutatsu Sai
  • Patent number: 11153856
    Abstract: Embodiments of the present disclosure disclose a method and an apparatus for transmitting an uplink signal, which can efficiently utilize uplink frequency-selectiveness, thereby improving uplink spectral efficiency. The method includes: determining, by a first terminal device, an uplink multiple access scheme for an uplink control signal according to whether a time domain resource unit used for transmitting the uplink control signal is also used for transmitting uplink data; and transmitting, by the first terminal device, the uplink control signal by using the determined uplink multiple access scheme.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: October 19, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Hai Tang
  • Patent number: 11146432
    Abstract: A radio receiver is provided for low-power detection of a radio signal, wherein said receiver is configured to receive a radio signal over a radio network; convert at least part of the received radio signal into a sequence of samples; compare the similarity of a first part of the sequence and a second part of the sequence, wherein the first part and the second part are of equal length; and in response to said similarity being greater than a similarity threshold: detect a phase difference between the first part of the sequence and the second part of the sequence; calculate a frequency offset between a frequency of the received radio signal and an expected frequency of the received radio signal using said phase difference; and use said calculated frequency offset to attempt full access to the radio network.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: October 12, 2021
    Assignee: Nordic Semiconductor ASA
    Inventor: Jukka Tapaninen
  • Patent number: 11134402
    Abstract: A system described herein may provide a technique for the use of artificial intelligence/machine learning (“AI/ML”) techniques to model User Equipment (“UE”) usage information based on battery dissipation and/or other battery performance or characteristic information. A given model (or set of models) may be used to determine UE usage information, such as types of applications or services (e.g., voice calls, content streaming, web browsing, etc.) being used by UEs, amount of traffic sent and/or received by UEs, radio access network (“RAN”) connection or disconnection activity, and/or other types of UE usage information. Network parameters, such as beam configuration parameters, may be modified based on UE usage information determined based on such models.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: September 28, 2021
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Vamsi Krishna Boyapati, Kishore K. Guntuku
  • Patent number: 11128414
    Abstract: Base station and UE and methods therein for broadcast in a wireless communication network. The method in the base station comprises determining (1201a-c) a set of transmission resources, out of a number of sets of transmission resources, based on a property associated with a synchronization signal of the base station, and further transmitting (1202a-c) the synchronization signal and/or system information, such as a MIB, in the determined set of transmission resources.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: September 21, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Frenne, George Jöngren, Johan Furuskog, Daniel Larsson
  • Patent number: 11095489
    Abstract: A method for controlling a combined waveform, representing a combination of at least two signals having orthogonal frequency multiplexed signal components, comprising: receiving information defining the at least two signals; transforming the information defining each signal to a representation having orthogonal frequency multiplexed signal components, such that at least one signal has at least two alternate representations of the same information, and combining the transformed information using the at least two alternate representations, in at least two different ways, to define respectively different combinations; analyzing the respectively different combinations with respect to at least one criterion; and outputting a respective combined waveform or information defining the waveform, representing a selected combination of the transformed information from each of the at least two signals selected based on the analysis.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: August 17, 2021
    Assignee: PlusN LLC
    Inventor: John David Terry
  • Patent number: 11088883
    Abstract: A multicarrier system and data modulation and demodulation methods and devices for the multicarrier system are provided. The data modulation method includes: performing cyclic shifting on data sequences of L continuous symbols respectively, L?2; and modulating the cyclically shifted data sequences by use of a waveform function, an independent variable range of the waveform function being greater than or equal to a symbol interval of the L modulated symbols. The technical solution solves the technical problems in which the related art is not compatible with a LTE system or effectively suppressing out-of-band leakage or flexibly adjusting a symbol interval to adapt to different channel environments and exhibits poor demodulation performance, thus achieving effective suppression of the out-of-band leakage, having higher compatibility with the LTE system and improving demodulation performance and flexibility of adjusting a symbol interval by simple cyclic shifting.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: August 10, 2021
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventor: Yu Xin
  • Patent number: 11057930
    Abstract: The present disclosure provides a method, system, and terminal device for data transmission in an unlicensed spectrum, effectively reduce mutual signal interference between different systems while meeting regulation constraints on use of the unlicensed spectrum. The method in the present disclosure includes: at a processing start moment of a terminal device in a current channel occupancy time window of a network device, when remaining duration of the current channel occupancy time window of the network device is greater than or equal to duration for the terminal device to transmit a to-be-sent data packet to the network device, selecting based on a user attribute of the terminal device and from a mapping relationship between a user attribute and a transmission mode; and sending the to-be-sent data packet to the network device in the selected transmission mode.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: July 6, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haifeng Yu, Feng Yu, Guangwei Yu, Wurong Zhang
  • Patent number: 11057141
    Abstract: A method for allocating and processing sequences in a communication system includes: dividing sequences in a sequence group into multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting sequences from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: the sequences in a sub-group i in a sequence group k being composed of n sequences in the candidate sequence collection, the n sequences making a |ri/Ni?ck/Np1| or |(ri/Ni?ck/Np1) modu mk,i| function value the smallest, second smallest, till the nth smallest respectively; allocating the sequence group to cells, users or channels. It prevents the sequences highly correlated with the sequences of a specific length from appearing in other sequence groups.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 6, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bingyu Qu, Yujuan He, Xuan Feng
  • Patent number: 11044657
    Abstract: A method of performing cell reselection by a wireless communications device comprises measuring a signal strength of radio signals received from a serving cell, determining whether the signal strength of the signals received from the serving cell is lower than a first predetermined signal strength threshold, if the signal strength is lower than the first predetermined signal strength threshold measuring a signal strength of a neighbor cell operating on the same frequency as the serving cell to generate signal strength measurements at a first rate, and in accordance with the signal strength measurements of the neighbor cell generated at the first rate determining whether to reselect to the neighbor cell.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: June 22, 2021
    Assignee: SONY CORPORATION
    Inventors: Brian Alexander Martin, Shin Horng Wong, Vivek Sharma, Martin Warwick Beale
  • Patent number: 11044136
    Abstract: Disclosed are a method and an apparatus for estimating a frequency offset in a wireless communication system. The method for estimating a frequency offset of the present disclosure comprises the steps of: acquiring a first symbol from which a cyclic prefix (CP) symbol of a received symbol is removed; acquiring a second symbol from which data having a length corresponding to a length of CP is removed at an end opposite to the end in which the CP is present in the received symbol; and estimating the frequency offset by using the first symbol and the second symbol.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: June 22, 2021
    Inventor: Ikbeom Lee
  • Patent number: 11038534
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 7/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: June 15, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 11025301
    Abstract: Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: June 1, 2021
    Assignee: Texas Instruments Incorporated
    Inventors: Il Han Kim, Tarkesh Pande, Anuj Batra
  • Patent number: 11026181
    Abstract: A terminal apparatus transmits uplink information on an uplink physical channel, encodes the uplink information and sets transmission power for the uplink physical channel at least based on a parameter, wherein in a case that a first error correction encoding method is applied to the uplink information, the parameter is given at least based on a product of a first value and a first number of bits before coding per resource element, and in a case that a second error correction encoding method is applied to the uplink information, the parameter is given at least based on a product of a second value and a second number of bits before coding per resource element, the second value being different from the first value, and the second error correction encoding method being different from the first error correction encoding method.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: June 1, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Shoichi Suzuki, Wataru Ouchi, Tomoki Yoshimura, Liqing Liu, Kimihiko Imamura
  • Patent number: 11026226
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration message configuring the UE to communicate coordinated transmissions with multiple transmission reception points (TRPs) using a first coordinated transmission mode of a set of different coordinated transmission modes. The UE may receive, based on the configuration message, downlink control information including at least one indicator and receive a first coordinated transmission communicated in accordance with the first coordinated transmission mode. The UE may transmit, in accordance with a feedback configuration corresponding to the at least one indicator and the first coordinated transmission mode, a feedback message for the first coordinated transmission to at least one of the multiple TRPs.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: June 1, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Yang, Yi Huang, Joseph Binamira Soriaga, Gokul Sridharan, Jay Kumar Sundararajan, Seyedkianoush Hosseini
  • Patent number: 10999115
    Abstract: A method for generating a multicarrier signal formed by multicarrier symbols. the method includes: obtaining N first modulating symbols and N second modulating symbols from a sequence of source symbols, the obtaining including, for at least one of the source symbols indexed k, a sub-step of: linearly combining a real part and an imaginary part respectively, of the symbol indexed k with a real part and an imaginary part respectively, of one of the source symbols indexed k+/?R, with R being a non-zero integer, delivering at least one first and one second combined symbol respectively; performing a frequency-time transformation of the N first and N second modulating symbols respectively, delivering a first block and a second block of N carriers respectively; and generating the multicarrier symbol from the first and second blocks of N carriers.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: May 4, 2021
    Assignee: ORANGE
    Inventors: Marc Lanoiselee, Bruno Jahan
  • Patent number: 10999116
    Abstract: Systems and methods for enabling pre-compensation of timing offsets in OFDM receivers without invalidating channel estimates are described. Timing offset estimations may be sent along with the received OFDM symbols for FFT computation and generating a de-rotated signal output. The timing offset estimation may provide a reference point for dynamic tracking of timing for an OFDM signal and estimated based on an integral value associated with the OFDM signal.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: May 4, 2021
    Assignee: Sirius XM Radio Inc.
    Inventors: Edward Schell, Carl Scarpa
  • Patent number: 10993233
    Abstract: A network element for use in a mobile communications system and a method of using a network element for communicating data to/from mobile communications devices in a mobile communications system. The network element can provide a wireless access interface for communicating data to/from the mobile communications devices, the wireless access interface including: on a downlink a host carrier, the host carrier providing plural resource elements across a first frequency range; transmit data for a first group of mobile communications devices, wherein the data is distributed within the plural resource elements across the first frequency range; a virtual carrier via the wireless access interface, the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range; and transmit data for a second group of mobile communications devices via the virtual carrier.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: April 27, 2021
    Assignee: SCA IPLA HOLDINGS INC.
    Inventors: Darren McNamara, Andrew Lillie, Peter Darwood, Martin Beale
  • Patent number: 10979271
    Abstract: A method for waveform bandwidth compression (WBC) and a system configured to perform the method, which may include the steps of: processing information to produce an input sequence of real-valued amplitude signals; fitting a polynomial to the input sequence covering at least one transmission time interval; converting the polynomial to a transmission signal comprising a sum of sinusoids with continuously time-varying amplitudes; transmitting the transmission signal; and receiving the transmission signal as a time-amplitude sequence. This method may significantly improve the spectral efficiency of existing transmission systems, while at the same time requiring only minimal modification to traditional radio architecture design.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: April 13, 2021
    Assignee: Astrapi Corporation
    Inventor: Jerrold Prothero
  • Patent number: 10979079
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 2/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 13, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10966147
    Abstract: Provided in the embodiments are a method for configuring network slice indexes, a device and a computer storage medium. The method may be applied to a network side device, and includes: configuring corresponding Shortened Slice Indexes (SSIs) for Network Slice Selection Assistance Information (NSSAI) of a first type of network slices based on a set partition granularity, wherein NSSAI of a network slice and an SSI corresponding to the NSSAI indicate the same network slice, and a length of the NSSAI is longer than a length of the SSI corresponding to the NSSAI; and sending a downlink message bearing the NSSAI and the corresponding SSIs of the first type of network slices to User Equipment (UE).
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: March 30, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Jianhua Liu
  • Patent number: 10938614
    Abstract: A transmitter includes a mapping circuit and a framing circuit. The mapping circuit is configured to combine and map a first data sequence and a second data sequence onto orthogonal frequency division multiplexing (OFDM) subcarriers which include first subcarriers and second subcarriers. The framing circuit is configured to generate an OFDM signal from the OFDM subcarriers. The mapping circuit is configured to: map first data included in the first data sequence and second data included in the second data sequence onto the first subcarriers; and map the second data onto the second subcarriers. The first data are not mapped on the second subcarriers.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: March 2, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventor: Peter Klenner
  • Patent number: 10911112
    Abstract: A signal transmission method and device are provided. The method includes: determining a codebook C being a set of matrices W; determining a matrix set ?={W}?C from the codebook C; generating one or more layers of signals, beamforming the signals with matrixes in the matrix set ?, and cyclically mapping the matrixes in the matrix set ? to different locations of transmission resources; and transmitting the beamformed signals at the different locations of the transmission resources.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: February 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Runhua Chen, Qiuping Huang, Qiubin Gao, Rakesh Tamrakar
  • Patent number: 10904878
    Abstract: A frame transmission method is provided by a device in a wireless communication network. The device generates a signal field including a symbol using a 64 FFT and carrying signaling information, and generates a data field including a symbol using a FFT having a larger size than the 64 FFT and carrying data. The device transmits a frame including the signal field and the data field.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: January 26, 2021
    Assignee: NEWRACOM, INC.
    Inventors: Ilgu Lee, Changwahn Yu
  • Patent number: 10903970
    Abstract: A radio transceiver comprises a spreader that spreads a plurality N of data symbols with a set of N complex-valued orthogonal spreading codes to produce N spread symbols. The spreading codes comprise rows or columns of a Discrete Fourier Transform (DFT) matrix. A mapper maps each of the N spread symbols to one of a set of Orthogonal Frequency Division Multiplexing (OFDM) subcarriers. A modulator modulates the N spread symbols onto the set of OFDM subcarriers to generate a discrete-time OFDM transmission signal. The spreading reduces the discrete-time OFDM transmission signal's peak to average power. The radio transceiver transmits the discrete-time OFDM transmission signal to a receiver that de-modulates and de-spreads the plurality N of data symbols.
    Type: Grant
    Filed: November 17, 2018
    Date of Patent: January 26, 2021
    Assignee: Genghiscomm Holdings, LLC
    Inventor: Steve Shattil
  • Patent number: 10880918
    Abstract: Provided are a method for a terminal transmitting an uplink control channel in a wireless communication system, and a device using same. The method comprises: determining the overlapping or not between a first physical uplink control channel (PUCCH) and a second PUCCH; and determining a transmission method for the first PUCCH and the second PUCCH on the basis of the determining. Here, the first PUCCH is an uplink control channel that is frequency division multiplexed (FDM) with a data channel, and the second PUCCH is an uplink control channel that is time division multiplexed (TDM) with the data channel.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: December 29, 2020
    Assignee: LG Electronics Inc.
    Inventors: Seungmin Lee, Suckchel Yang, Seonwook Kim
  • Patent number: 10880134
    Abstract: A reception device includes: a reception unit receiving transmission signals; a splitting unit splitting received signals into real component and imaginary component; a narrowing unit narrowing down possible signal point candidates of real component of the signal and imaginary component of the signal to signal point candidates based on the real component and the imaginary component of the split received signal; a signal point candidate hypothesizing unit hypothesizing one signal point candidate of real component from the signal point candidates of real component obtained by narrowing-down and hypothesizing one signal point candidate of imaginary component from the signal point candidates of imaginary component obtained by narrowing-down; and a signal estimation value calculating unit estimating real component of the signal based on the one hypothesized real component signal point candidate and estimating imaginary component of the signal based on the one hypothesized imaginary component signal point candidate
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: December 29, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kanako Yamaguchi, Hiroshi Nishimoto, Kaoru Tsukamoto, Shusaku Umeda
  • Patent number: 10869204
    Abstract: A transmitting apparatus includes: a data generator that generates data symbols; a zero generator that generates zero symbols having signal values of zero; a controller that receives the data symbols and the zero symbols, and controls symbols to be output; a static sequence generator that generates static sequence symbols having signal values of a static sequence; a multiplexer that divides the static sequence symbols and generates a pre-interpolation block by arranging the divided static sequence symbols at a head of the pre-interpolation block and a tail of the pre-interpolation block in the pre-interpolation block, the head preceding the symbols input from the controller, the tail following the symbols input from the controller, and a signal converter that performs a Fourier transform, the interpolation, and an inverse Fourier transform on the pre-interpolation block and outputs a block having being subjected to the interpolation.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: December 15, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventor: Fumihiro Hasegawa
  • Patent number: 10855493
    Abstract: An apparatus and method are provided for Doppler estimation of a signal received over a time-varying transmission medium, the method including receiving the signal over a channel of the time-varying transmission medium; sampling a magnitude of the received signal repeatedly over time; identifying unidirectional threshold crossings of the sampled magnitude about a threshold magnitude relative to a mean magnitude; measuring differences between the sampled magnitude and the threshold magnitude for the identified crossings; analyzing the measured differences over time; estimating the time-varying nature of the channel based on the analyzed differences; and transmitting a signal indicative of the estimated time-varying nature.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Paul N. Fletcher, Fei Tong
  • Patent number: 10855425
    Abstract: A wireless communication technique to improve channel estimation using pilot signals includes receiving data symbols for transmission over a wireless communication channel using multiple antenna ports, generating a plurality of scrambling sequences, each corresponding to one of the multiple antenna ports, mapping, for each antenna port, a corresponding pilot signal to time and frequency transmission resources using a corresponding scrambling sequence, multiplexing a first input from the data symbols and a second input from the mapping of the corresponding pilot signal to generate an output signal, and transmitting the output signal over a wireless communication channel.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: December 1, 2020
    Assignee: Cohere Technologies, Inc.
    Inventors: Shachar Kons, Michail Tsatsanis
  • Patent number: 10848360
    Abstract: Embodiments of the present disclosure are related, in general to communication, but exclusively relate to method and receiver for detecting data in a communication network. The method comprises transforming by a receiver, a received signal in to frequency domain to generate transformed signal. Also, the method comprises equalizing the transformed signal to obtain an estimated precoded signal, which is transformed using inverse Fourier transform to obtain a time domain signal. The time domain signal is de-rotated to produce de-rotated data, on which processing is performed by separating real part and imaginary part associated with the de-rotated signal. The real part and the imaginary parts are filtered and combined to produce a signal, that is demodulated to detect the signal.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: November 24, 2020
    Inventor: Kiran Kumar Kuchi
  • Patent number: 10834713
    Abstract: A disclosure of the present specification provides a new PUCCH format for allowing increased UCI HARQ-ACK; including CSI to be transmitted in an environment in which an enhanced carrier aggregation technology is used so that cells, the number of which exceeds five and is a maximum of X e.g., 32, can be aggregated.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: November 10, 2020
    Assignee: LG Electronics Inc.
    Inventors: Daesung Hwang, Suckchel Yang, Seungmin Lee
  • Patent number: 10823837
    Abstract: A method for vehicle location estimation using orthogonal frequency-division multiplexing (OFDM) is provided with an OFDM device that consists of a wireless terminal and a multiple-input and multiple-output (MIMO) antenna. A pilot uplink signal is transmitted towards from the wireless terminal towards the intended target which is within an operational range of the MIMO antenna. Upon contacting the intended target and a plurality of target-surrounding objects, a plurality of return signals is generated to be received by the wireless terminal. A plurality of echo signals that was reflected from the plurality of target-surrounding objects is separated so that a time delay between the pilot uplink signal and the plurality of echo signals can be determined. The time delay along with a direction of arrival determined through the MIMO antenna are used to derive a location approximation for the intended target.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: November 3, 2020
    Assignee: THE EUCLIDE 2012 INVESTMENT TRUST
    Inventor: Tiejun Shan
  • Patent number: 10820369
    Abstract: Embodiments of this application provide for establishment of a wireless connection. A method comprises: generating connection authentication information according to related information of a wired connection between a first device and a second device; and sending, in case of disconnection of, a wireless connection establishing request in such a manner that the request can be received by the second device, where the request comprises the connection authentication information. In the methods and apparatuses of embodiments of this application, by using related information of a wired connection as authentication information of establishing a wireless connection, the wireless connection can be established rapidly and securely, and/or device power consumption can also be considered.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: October 27, 2020
    Assignee: Beijing Zhigu Rui Tuo Tech Co., Ltd
    Inventor: Jia Liu
  • Patent number: 10805118
    Abstract: A network device generates a successive joint channel estimation based on interference cancellation processes to eliminate or reduce colliding interferences (colliders) at a receiver end. A selection component selects a strongest interference collider from among pseudo noise sequences operating as colliders. A 2 by 2 matrix successive joint channel estimation component performs a successive 2 by 2 matrix joint channel estimation with an initial correlation metric between the strongest interference collider and each remaining interference collider in a first iteration of a set of iterations. A correlation metric component generates an updated correlation metric vector based on the 2 by 2 matrix joint channel estimation. Another 2 by 2 matrix joint channel estimation is then performed with the updated correlation metric vector between a next strongest interference collider and remaining interference colliders of the plurality of interference colliders at a second iteration of the set of iterations.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: October 13, 2020
    Assignee: Apple Inc.
    Inventors: Zhibin Yu, Qing Xu