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1.发明公开公开(公告)号：US20240179037A1
公开(公告)日：2024-05-30
申请号：US18433076
申请日：2024-02-05
Applicant: Sun Patent Trust
Inventor： Shinsuke Takaoka , Masayuki Hoshino , Kenichi Miyoshi
CPC classification number: H04L27/2602 , G06F17/141 , H04J1/00 , H04J4/005 , H04J11/00 , H04L5/0041 , H04L27/26 , H04L27/2636 , H04W72/0453 , H04W88/08 , Y10S370/916
Abstract: A communication system includes a communication apparatus and a base station. The communication apparatus includes a Discrete Fourier Transform (DFT) transformer which transforms a time-domain signal into a frequency-domain signal with a DFT size that is a product of powers of a plurality of values; a mapper which maps the frequency-domain signal on a plurality of frequency bands, each frequency band being located at a position separate from position(s) of other(s) of the plurality of frequency bands; and a signal generator which generates a single carrier-frequency division multiple access (SC-FDMA) time-domain signal from the mapped signal. The base station includes a receiver which receives the SC-FDMA time-domain signal; a combiner which generates the frequency-domain signal from the SC-FDMA time-domain signal; and a transformer which transforms the frequency-domain signal into the time-domain signal with an inverse Discrete Fourier Transform (IDFT) having the DFT size.
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公开(公告)号：US11929858B2
公开(公告)日：2024-03-12
申请号：US18149620
申请日：2023-01-03
Applicant: Sun Patent Trust
Inventor： Shinsuke Takaoka , Masayuki Hoshino , Kenichi Miyoshi
CPC classification number: H04L27/2602 , G06F17/141 , H04J1/00 , H04J4/005 , H04J11/00 , H04L5/0041 , H04L27/26 , H04L27/2636 , H04W72/0453 , H04W88/08 , Y10S370/916
Abstract: A communication system includes a communication apparatus and a base station. The communication apparatus includes a Discrete Fourier Transform (DFT) transformer which transforms a time-domain signal into a frequency-domain signal with a DFT size that is a product of powers of a plurality of values; a mapper which maps the frequency-domain signal on a plurality of frequency bands, each frequency band being located at a position separate from position(s) of other(s) of the plurality of frequency bands; and a signal generator which generates a single carrier-frequency division multiple access (SC-FDMA) time-domain signal from the mapped signal. The base station includes a receiver which receives the SC-FDMA time-domain signal; a combiner which generates the frequency-domain signal from the SC-FDMA time-domain signal; and a transformer which transforms the frequency-domain signal into the time-domain signal with an inverse Discrete Fourier Transform (IDFT) having the DFT size.
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公开(公告)号：US11438084B2
公开(公告)日：2022-09-06
申请号：US16818986
申请日：2020-03-13
Applicant: Myriota Pty Ltd
Inventor： Alexander James Grant , David Victor Lawrie Haley , Robert George McKilliam , William George Cowley , Ho Leung Chan
Abstract: A multiple access slotted wireless communication system comprising a plurality of terminals and a multi-access receiver is described. The multi-access receiver can decode multiple transmissions in each slot of a frame from terminals in its field of view. Each terminal has an active state for transmitting and an inactive state. After receiving acknowledgement of a successful transmission by the terminal, the terminal enters the inactive state for at least a transmission delay time. This may be the remaining time that the terminal is in the field of view of the multi-access receiver. This may be achieved by the terminal using a probability of transmission to determine whether or not to transmit in the next frame. The terminal may also be configured to select the slot in a frame, and this may be based upon information such as which slots were acknowledged. The receiver may use compression to transmit acknowledgement messages.
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公开(公告)号：US11418990B2
公开(公告)日：2022-08-16
申请号：US17164020
申请日：2021-02-01
Applicant: Pantech Corporation
Inventor： Jae Hyun Ahn , Ki Bum Kwon , Myung Cheul Jung
IPC: H04W24/10 , H04B17/345 , H04W24/02 , H04W36/00 , H04B17/373 , H04B17/382 , H04J1/00 , H04J3/00
Abstract: The present invention relates to an apparatus and a method for performing measurement reporting considering in-device coexistence interference. The present invention provide a user equipment transmitting a measurement report in a wireless communication system, comprising an interference detection unit, an assistant information generation unit, a measurement controller and a transmitter. According to the present invention, a measurement procedure can be clearly defined in an interference delicate band where in-device coexistence interference occurs and scheduling restrictions on an eNodeB due to measurement reporting about an interference delicate band can be reduced.
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公开(公告)号：US11368959B2
公开(公告)日：2022-06-21
申请号：US15524201
申请日：2015-11-02
Applicant: Sharp Kabushiki Kaisha
Inventor： Ryota Yamada , Kazuyuki Shimezawa , Hiromichi Tomeba
IPC: H04W72/04 , H04W24/10 , H04J1/00 , H04J11/00 , H04L5/00 , H04B7/0456 , H04L1/00 , H04W88/02 , H04W88/08
Abstract: The present invention provides a base station apparatus, a terminal apparatus, and a communication method, which are capable of throughput improvement. A base station apparatus that communicates with a terminal apparatus, includes a higher layer processing unit that configures a CSI process that is a configuration relating to reporting of a channel state information (CSI), for the terminal apparatus for which a prescribed transmission mode is configured, in which the CSI process includes a configuration of a CSI reference signal and a configuration relating to two different code books. A terminal apparatus that communicates with a base station apparatus, includes a higher layer processing unit for which a CSI process that is a configuration relating to reporting of channel state information (CSI) is configured by the base station apparatus, and a transmission unit that transmits the CSI based on the CSI process, in which the CSI information includes a configuration of a CSI reference signal and a configuration relating to two different code books.
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Patent Agency Ranking
公开(公告)号：US11259313B2
公开(公告)日：2022-02-22
申请号：US16855851
申请日：2020-04-22
Applicant: Apple Inc.
Inventor： Yang Li , Wei Zeng , Zhu Ji , Beibei Wang , Jia Tang , Yuchul Kim , Haijing Hu , Dawei Zhang , Xiangying Yang , Sami M. Almalfouh , Johnson O. Sebeni , Wei Zhang , Tianyan Pu
Abstract: Apparatuses, systems, and methods for a wireless device to perform simultaneous uplink activity for multiple RATs in the same carrier using frequency division multiplexing. The wireless device may establish a first wireless link with a first base station according to a first radio access technology (RAT) and a second wireless link with a second base station according to a second RAT. The first base station may provide a first cell operating in a first system bandwidth and the second base station may provide a second cell operating in a second system bandwidth. The wireless device may determine whether the wireless device has uplink activity scheduled according to both the first RAT and the second RAT. If so, the wireless device may perform uplink activity for both the first RAT and the second RAT in the first system bandwidth using frequency division multiplexing.
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公开(公告)号：US11206063B2
公开(公告)日：2021-12-21
申请号：US16583258
申请日：2019-09-26
Applicant: Sony Corporation
Inventor： Hiroaki Takano
IPC: H04B7/0417 , H04W4/06 , H04W16/28 , H04B7/06 , H04J1/00 , H04W24/08 , H04J11/00 , H04W72/04 , H04B17/318 , H04L5/00 , H04L12/18
Abstract: [Object] To enable a cell appropriate for a terminal device to be selected when beamforming is performed.
[Solution] Provided is a device including: an acquisition unit configured to acquire multiple weight sets for beamforming; and a control unit configured to map a reference signal for measurement to radio resources associated with a weight set in advance for each weight set included in the multiple weight sets, and multiply the reference signal by the weight set.-
公开(公告)号：US11005631B2
公开(公告)日：2021-05-11
申请号：US15762144
申请日：2016-09-09
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata
IPC: H04L5/00 , H04L1/00 , H04L1/18 , H04W72/04 , H04W72/02 , H04J1/00 , H04J11/00 , H04W72/12 , H03M13/23
Abstract: The present invention is designed so that, even when the number of component carriers (CC) that can be configured per user terminal is expanded more than in existing systems, UCI including at least HARQ-ACK and CSI can be transmitted with appropriate quality. The user terminal of the present invention separately encodes at least one CC's HARQ-ACK and at least one CC's CSI. The user terminal maps the encoded bit sequence of the HARQ-ACK and the encoded bit sequence of the CSI to radio resources constituting the same PUCCH and transmits the PUCCH.
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公开(公告)号：US10992341B2
公开(公告)日：2021-04-27
申请号：US16442952
申请日：2019-06-17
Applicant: Nokia Solutions and Networks OY
Inventor： Paschalis Tsiaflakis , Jochen Maes , Werner Coomans , Carl Nuzman
Abstract: A multi-line digital transceiver configured to use low-complexity beamforming on at least some tones to boost effective SNR values for selected subscriber lines. In an example embodiment, the beamforming coefficients can be restricted to one-bit values or two-bit values, e.g., such that the corresponding beamforming computations can be implemented using only sign changes, swaps of the real and imaginary parts, and/or zeroing of some values, and without invoking any full-precision hardware multiplication operations. At least some embodiments can be run on a significantly simpler and/or less powerful vectoring engine than conventional beamforming solutions while still being able to provide nearly optimal beamforming SNR gains. In some embodiments, additional scaling by powers of two may be applied to at least some signals contributing to the beamforming, e.g., to satisfy power constraints for some or all of the subscriber lines.
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公开(公告)号：US10925089B2
公开(公告)日：2021-02-16
申请号：US16070741
申请日：2017-01-20
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Kazuki Takeda , Satoshi Nagata
Abstract: This invention aims to achieve appropriate communication in a communication system which uses a cell defined to apply listening. This invention provides a user terminal which performs communication using cells including an LAA cell which applies listening before UL transmission, the terminal including a transmission unit which transmits uplink control information and uplink data, and a control unit which controls transmission of the uplink control information and the uplink data, wherein the control unit performs control to transmit the uplink control information using an uplink channel other than an uplink shared channel of the LAA cell.
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