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公开(公告)号：US12132540B2
公开(公告)日：2024-10-29
申请号：US18343620
申请日：2023-06-28
Inventor： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC: H04B7/04 , H04B7/0413 , H04B7/0452 , H04B7/0456 , H04B7/06
CPC classification number: H04B7/0456 , H04B7/0413 , H04B7/0452 , H04B7/0628 , H04B7/0671
Abstract: Provided are M signal processors that respectively generate modulated signals for M reception apparatuses (where M is an integer equal to 2 or greater), a multiplexing signal processor, and N antenna sections (where N is an integer equal to 1 or greater). When transmitting multiple streams, each of the M signal processors generates two mapped signals, generates first and second precoded signals by precoding the two mapped signals, periodically changes the phase of signal points in the IQ plane with respect to the second precoded signal, outputs the phase-changed signal, and outputs the first precoded signal and the phase-changed second precoded signal as two modulated signals. When transmitting a single stream, each of the M signal processor outputs a single modulated signal. The multiplexing signal processor multiplexes the modulated signals output from the M signal processors, and generates N multiplexed signals. The N antenna sections respectively transmit the N multiplexed signals.
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2.发明授权公开(公告)号：US11818734B2
公开(公告)日：2023-11-14
申请号：US17212893
申请日：2021-03-25
Applicant: QUALCOMM Incorporated
Inventor： Peer Berger , Shay Landis
CPC classification number: H04W72/25 , H04B7/0671
Abstract: Aspects directed towards receiving at a sidelink node from and communicating to peer sidelink nodes an indication on whether the CDD antenna diversity scheme is used in a data transmission are disclosed. Also disclosed is the receiving sidelink node optimizing its operation based on the knowledge of whether the CDD antenna diversity scheme is used in the data transmission and thus the performance at the receiving sidelink node is improved. Also disclosed are aspects directed to a peer sidelink node determining whether to use the CDD antenna diversity scheme based on a variety of factor and conveying the determination to the receiving sidelink node.
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公开(公告)号：US20230353202A1
公开(公告)日：2023-11-02
申请号：US18219181
申请日：2023-07-07
Inventor： Yutaka MURAKAMI , Tomohiro KIMURA , Mikihiro OUCHI
IPC: H04B7/06 , H04J11/00 , H04B7/04 , H04B7/0417 , H04L27/26
CPC classification number: H04B7/06 , H04B7/04 , H04B7/0421 , H04B7/0615 , H04B7/0671 , H04J11/00 , H04L27/2613 , H04L27/26134
Abstract: A transmission method includes generating a first precoded signal and a second precoded signal by performing a precoding process on a first baseband signal and a second baseband signal, outputting a third signal by inserting a pilot signal into the first precoded signal, outputting a fourth signal by applying a first phase change to the second precoded signal, outputting a fifth signal by inserting a pilot signal into the fourth signal, and outputting a sixth signal by applying a second phase change to the fifth signal.
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公开(公告)号：US20230327830A1
公开(公告)日：2023-10-12
申请号：US18206747
申请日：2023-06-07
Inventor： Yutaka MURAKAMI , Tomohiro KIMURA , Mikihiro OUCHI , Hiroyuki MOTOZUKA
IPC: H04L5/00 , H04B7/0456 , H04B7/06
CPC classification number: H04L5/0048 , H04B7/0456 , H04B7/0671
Abstract: A transmission device that improves data reception quality includes: a first pilot inserter that inserts a pilot signal into a first precoded signal; a phase changer that applies a phase change of i×Δλ to the second precoded signal, where i is a symbol number and an integer that is greater than or equal to 0; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. Δλ satisfies n/2 radians
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公开(公告)号：US11671792B1
公开(公告)日：2023-06-06
申请号：US17196967
申请日：2021-03-09
Applicant: LocationDAS INC.
Inventor： Ahmed Sallam Mohamed Ibrahim
CPC classification number: H04W4/029 , G06F17/40 , H04B7/022 , H04B7/0413 , H04B7/0671 , H04W16/26 , H04W64/003
Abstract: System, devices, and methods facilitate determining positioning using distributed antenna system with service availability monitoring. Positioning methods include network based methods and handset assisted methods in addition to a monitoring system to report any service outage and possible location information loss. The system provides location information also at handset only level through application or apps and operating systems with online and off-line access to location database data. A combined monitoring system that monitors antenna output power for mobile coverage and service availability helps also in monitoring the availability of the localization system and dynamic update of lookup information. Monitoring system provides also asset tracking and service analytics features for the active or passive distributed antenna system.
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Patent Agency Ranking
公开(公告)号：US20190222373A1
公开(公告)日：2019-07-18
申请号：US16361193
申请日：2019-03-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ye WU , Shibin GE , Xiaoyan BI
IPC: H04L5/00 , H04B7/0456
CPC classification number: H04L5/0023 , H04B7/0452 , H04B7/0456 , H04B7/0617 , H04B7/0671 , H04B7/068 , H04B7/0689 , H04B7/0697 , H04L5/005
Abstract: This application discloses a data sending method, a data receiving method, a device, a system, and a storage medium, and pertains to the field of communications technologies. The method includes: precoding at least two first preprocessed spatial flows to obtain a plurality of precoded data flows, where the at least two first preprocessed spatial flows are obtained by preprocessing a first original spatial flow; and transmitting the plurality of precoded data flows. This application helps to resolve a problem that a plurality of UEs cannot perform spatial multiplexing on a time-frequency resource and a system throughput is affected, helps the plurality of UEs to perform spatial multiplexing on the time-frequency resource, and improves the system throughput. This application is used for data transmission.
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公开(公告)号：US20190165849A1
公开(公告)日：2019-05-30
申请号：US16259148
申请日：2019-01-28
Applicant: NxGen Partners IP, LLC
Inventor： SOLYMAN ASHRAFI , ROGER D. LINQUIST , NIMA ASHRAFI
IPC: H04B7/06 , H04J14/04 , H04B10/112 , H04B10/516 , H04B10/2581 , H04B10/508 , H04W16/28 , H04L27/20 , H04B10/2507 , H04B10/2575
CPC classification number: H04B7/0697 , H04B7/0413 , H04B7/0617 , H04B7/0671 , H04B10/112 , H04B10/2507 , H04B10/25752 , H04B10/2581 , H04B10/508 , H04B10/516 , H04J14/04 , H04L27/2017 , H04W16/28
Abstract: A system for focusing an orbital angular momentum (OAM) multiplexed beam comprising OAM signal processing circuitry for generating an OAM multiplexed signal. The OAM multiplexed signal includes a plurality of data streams each having a unique orbital angular momentum applied thereto and multiplexed together within the OAM multiplexed signal. Each unique orbital angular momentum has a beam helicity value greater than l=2. An antenna array control circuit controls transmission of the multiplexed OAM signal from each of a plurality of antennas in an antenna array toward a focus point located below the ground as a transmission beam to cause the transmitted OAM multiplexed signals to converge at the focus point below the ground at substantially a same time to overcome a divergence of the transmitted plurality of OAM multiplexed signals caused by the beam helicity value of greater than l=2 for each of the unique orbital angular momentum.
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公开(公告)号：US10079633B2
公开(公告)日：2018-09-18
申请号：US14868509
申请日：2015-09-29
Inventor： Ryan Elwell , Mark Govoni
CPC classification number: H04B7/0671 , H04B7/0617 , H04B7/0676 , H04B7/068 , H04B7/08
Abstract: Various embodiments are described that relate to radio beamforming waveform transmission. Transmission can occur, for example, in three manners. The first manner is time-based where waveform transmission is staggered at the same frequency. The second manner is frequency-based where different frequencies are used at one time. This third manner is a combination of time and frequency such that simultaneous transmission occurs, but at different times different frequencies are used.
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公开(公告)号：US10075226B2
公开(公告)日：2018-09-11
申请号：US14871925
申请日：2015-09-30
Applicant: QUALCOMM Incorporated
Inventor： Lin Yang , Bin Tian , Jialing Li Chen
CPC classification number: H04B7/0697 , H04B7/0671 , H04L5/0023
Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus includes a processor configured to determine a first set of CSD values for transmitting a first set of information on a plurality of antennas, determine a second set of CSD values for transmitting a second set of information on the plurality of antennas, and transmit the first set of information based on the first set of CSD values and the second set of information based on the second set of CSD values.
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公开(公告)号：US10009089B2
公开(公告)日：2018-06-26
申请号：US14764387
申请日：2014-01-28
Applicant: RF-shamaanit Oy
Inventor： Markku Sakari Lehtinen
CPC classification number: H04B7/0671 , H01Q3/2682 , H01Q3/40 , H04B7/0615 , H04B7/0617
Abstract: An antenna unit is used in an antenna array. It comprises a measurement signal receiver for receiving and digitizing a measurement signal from an antenna. A time delay unit delays the digitized measurement signal. A data collection receiver receives a data collection frame, and a data collection transmitter is configured to sum the delayed digitized measurement signal with pre-existing data in the received data collection frame and to transmit the so constructed updated data collection frame further.
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