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11.发明授权公开(公告)号：US11196459B2
公开(公告)日：2021-12-07
申请号：US16964443
申请日：2018-11-02
Applicant: Mitsubishi Electric Corporation
Inventor： Yasunori Noda , Shunsuke Uehashi , Katsuyuki Motoyoshi , Shigeru Uchida
Abstract: A reception device includes an equalization processing unit including a linear filter unit and a nonlinear filter unit and performing equalization process on a reception signal; a linear propagation channel estimation unit making propagation channel estimation using a known signal included in a reception signal to calculate a filter coefficient of the linear filter unit; and a synchronization processing unit performing synchronization process of correcting frequency deviation based on a signal output by the equalization processing unit, and when a predetermined condition is satisfied after executing first equalization process of outputting a reception signal filtered by the linear filter unit to the synchronization processing unit, the equalization processing unit starts second equalization process that is an adaptive equalization process of outputting a result of addition of a reception signal filtered by the linear filter unit and a reception signal filtered by the nonlinear filter unit to the synchronization processing unit.
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公开(公告)号：US11032001B2
公开(公告)日：2021-06-08
申请号：US16373512
申请日：2019-04-02
Applicant: QUALCOMM incorporated
Inventor： Peter Pui Lok Ang , Peter Gaal , Alexei Yurievitch Gorokhov , Tingfang Ji , Tao Luo , Heechoon Lee , Joseph Binamira Soriaga
IPC: H04B7/216 , H04B7/26 , H04B7/005 , H04B7/0413
Abstract: Bandwidth part (BWP) switching may benefit a wireless communications system. Such BWP switching may include indication of one or more timing parameters used for time domain resource allocation. For example, the timing parameters may be indicated based on an index to a look-up table (e.g., a bit field in a control transmission). In some cases, one or more tables may be configured for a given BWP, and different tables may contain a different number of rows. The size of the bit field indexing the table may in turn depend on the number of rows. When switching from a first BWP to a second BWP, the size of the bit field may be based on the table of the first BWP, but the bit field may index the table of the second BWP. Techniques supporting improved timing parameter management during BWP switching are discussed herein.
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13.发明申请公开(公告)号：US20210050883A1
公开(公告)日：2021-02-18
申请号：US16964443
申请日：2018-11-02
Applicant: Mitsubishi Electric Corporation
Inventor： Yasunori NODA , Shunsuke UEHASHI , Katsuyuki MOTOYOSHI , Shigeru UCHIDA
Abstract: A reception device includes an equalization processing unit including a linear filter unit and a nonlinear filter unit and performing equalization process on a reception signal; a linear propagation channel estimation unit making propagation channel estimation using a known signal included in a reception signal to calculate a filter coefficient of the linear filter unit; and a synchronization processing unit performing synchronization process of correcting frequency deviation based on a signal output by the equalization processing unit, and when a predetermined condition is satisfied after executing first equalization process of outputting a reception signal filtered by the linear filter unit to the synchronization processing unit, the equalization processing unit starts second equalization process that is an adaptive equalization process of outputting a result of addition of a reception signal filtered by the linear filter unit and a reception signal filtered by the nonlinear filter unit to the synchronization processing unit.
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公开(公告)号：US10924153B2
公开(公告)日：2021-02-16
申请号：US16278636
申请日：2019-02-18
Applicant: Ford Global Technologies, LLC
Inventor： Eric Eaton , Pha Nguyen
Abstract: Systems and methods are disclosed for an external vehicle wireless connection. Example methods may include: determining a condition associated with a vehicle; determining, based on the condition, a switching state between a first antenna external to the vehicle and a second antenna internal to the vehicle associated with the vehicle; transmitting, based on the switching state and via the first antenna, a first signal on a first frequency and on a first network or on a second network; and transmitting, based on the switching state and via the second antenna, a second signal on a second frequency on the first network.
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公开(公告)号：US20210036823A1
公开(公告)日：2021-02-04
申请号：US16947799
申请日：2020-08-17
Applicant: Cohere Technologies, Inc.
Inventor： Yoav Hebron , Shlomo Selim Rakib , Ronny Hadani , Michail Tsatsanis , Clayton Ambrose , Jim Delfeld , Robert Fanfelle
IPC: H04L5/00 , H04L25/02 , H04L27/01 , H04L27/26 , H04B7/005 , H04B17/309 , H04B17/373
Abstract: Techniques for performing channel estimation in an orthogonal time, frequency and space (OTFS) communication system include receiving a wireless signal comprising a data signal portion and a pilot signal portion in which the pilot signal portion includes multiple pilot signals multiplexed together in the OTFS domain, performing two-dimensional channel estimation in a time-frequency domain based on a minimum mean square error (MMSE) optimization criterion, and recovering information bits using a channel estimate obtained from the two-dimensional channel estimation.
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Patent Agency Ranking
公开(公告)号：US20200162291A1
公开(公告)日：2020-05-21
申请号：US16619305
申请日：2018-06-05
Applicant: NEC CORPORATION
Inventor： Ryuji ZENKYU
IPC: H04L25/03 , H04B7/005 , H04B7/08 , H04B17/336
Abstract: An equalizer can connect with N receiving antennas that receive single carrier transmission signals transmitted from M transmitting antenna(s) in the same frequency band at the same time, and receives as input L signals sampled in a sampling period T from each of the N receiving antennas, the equalizer comprising, a first selection part that selects K signal(s) from the L signals for each of the N receiving antennas as signals to be multiplied by a first tap coefficient(s), and a second selection part selects L-K signal(s) to be multiplied by a second tap coefficient(s), from the L signals obtained by multiplying signals in the same sampling period for each of the N receiving antennas by the tap coefficient(s) and performing addition thereof.
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17.发明授权公开(公告)号：US10608805B2
公开(公告)日：2020-03-31
申请号：US15958138
申请日：2018-04-20
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Thomas Novlan , Ralf Bendlin , Arunabha Ghosh
Abstract: The described technology is generally directed towards using a frequency-separated band as a supplementary uplink band for a new radio downlink band that cannot operate as a time division duplex band and otherwise has no paired uplink band. The paired bands are separated in frequency, yet operate in the time division duplex mode. The supplementary uplink for New Radio facilitates coexistence with LTE in the frequency division duplex spectrum.
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18.发明授权公开(公告)号：US10567125B2
公开(公告)日：2020-02-18
申请号：US16044425
申请日：2018-07-24
Applicant: Cohere Technologies, Inc.
Inventor： Ronny Hadani , Shlomo Selim Rakib
Abstract: A method for modulating data for transmission within a communication system. The method includes establishing a time-frequency shifting matrix of dimension N×N, wherein N is greater than one. The method further includes combining the time-frequency shifting matrix with a data frame to provide an intermediate data frame. A transformed data matrix is provided by permuting elements of the intermediate data frame. A modulated signal is generated in accordance with elements of the transformed data matrix.
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公开(公告)号：US10524228B2
公开(公告)日：2019-12-31
申请号：US16256956
申请日：2019-01-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Anil Agiwal , Youngbin Chang , Anshuman Nigam , Peng Xue
Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An apparatus and method are provided for transmitting/receiving a paging message in a next generation communication system.
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公开(公告)号：US10523283B2
公开(公告)日：2019-12-31
申请号：US16081076
申请日：2017-04-18
Applicant: NEC Corporation
Inventor： Norifumi Kamiya
IPC: H04L27/01 , H04B7/005 , H04B7/0413 , H04L27/38 , H04B7/08
Abstract: A LOS-MIMO demodulation apparatus comprises a plurality of receive antennas that receive data; a phase noise estimation part that calculates, from each signal received, first phase noise information and second phase noise information relating to phase noise occurring at transmit antennas and the receive antennas; a first correction part that corrects a phase of each signal received by the plurality of receive antennas according to the first phase noise information; a frequency domain equalization part that performs frequency domain equalization processing compensating for distortion due to interference from each signal received; a second correction part that corrects, according to the second phase noise information, a phase of each signal obtained by returning the signals, on which the frequency domain equalization processing has been performed, to the time domain by performing an inverse discrete Fourier transform; and a decoding processing part that performs decoding processing on the corrected data.
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