公开(公告)号：US20240323931A1

公开(公告)日：2024-09-26

申请号：US18187916

申请日：2023-03-22

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Keerthi Priya DASALA ,  Xiaojie WANG ,  Jianghong LUO ,  Tao LUO ,  Junyi LI

IPC: H04W72/044 ,  H02J50/00 ,  H02J50/20 ,  H04L27/12

CPC classification number: H04W72/044 ,  H02J50/001 ,  H02J50/20 ,  H04L27/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may receive a first signal in a first set of frequency domain resources. The device may harvest energy using the first signal. The device may receive a second signal in a second set of frequency domain resources. The device may backscatter modulated data using the second signal. Numerous other aspects are described.

公开(公告)号：US12010048B2

公开(公告)日：2024-06-11

申请号：US18083756

申请日：2022-12-19

Applicant: GOLBA LLC

Inventor： Mehran Moshfeghi

IPC: H04L5/00 ,  H04B1/40 ,  H04B7/024 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0426 ,  H04B7/06 ,  H04B7/08 ,  H04L27/12 ,  H04W4/80 ,  H04W24/08 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/542 ,  H04W88/02 ,  H04W88/06 ,  H04W84/12

CPC classification number: H04L5/0032 ,  H04B1/40 ,  H04B7/024 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/043 ,  H04B7/0689 ,  H04B7/0897 ,  H04L27/12 ,  H04W4/80 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/046 ,  H04W72/0473 ,  H04W72/542 ,  H04W88/02 ,  H04W88/06 ,  H04W84/12 ,  Y02D30/70

Abstract: A system comprising a relay device that configures to a first beamforming setting for a first set of antenna arrays to establish a first link between the relay device and a source device, and a second beamforming setting to establish a second link between the relay device and a destination device. A data stream is processed based on a selection of one of a passive mode or an active mode of relay operation. In the passive mode, a received radio frequency waveform of the data stream is down-converted to an intermediate frequency waveform, re-amplified, and then up-converted for transmission without requiring any data demodulation, and in the active mode, the IF waveform is demodulated and then remodulated for the transmission. The data stream is forwarded to the destination device through the second link based on the selection of one of the passive or active mode.

公开(公告)号：US20230421315A1

公开(公告)日：2023-12-28

申请号：US18464384

申请日：2023-09-11

Applicant: GOLBA LLC

Inventor： Mehran Moshfeghi

IPC: H04L5/00 ,  H04B7/0408 ,  H04B7/0426 ,  H04B1/40 ,  H04L27/12 ,  H04W4/80 ,  H04W72/542 ,  H04W88/06 ,  H04B7/06 ,  H04W88/02 ,  H04B7/0413 ,  H04B7/08 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/044 ,  H04B7/024

CPC classification number: H04L5/0032 ,  H04B7/0408 ,  H04B7/043 ,  H04B1/40 ,  H04L27/12 ,  H04W4/80 ,  H04W72/542 ,  H04W88/06 ,  H04B7/0689 ,  H04W88/02 ,  H04B7/0413 ,  H04B7/0897 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/046 ,  H04W72/0473 ,  H04B7/024 ,  Y02D30/70 ,  H04W84/12

Abstract: A method implemented in a relay device that comprises a plurality of antenna arrays, includes configuring first beamforming setting for first set of antenna arrays of the plurality of antenna arrays of the relay device to establish a first link between the relay device and a source device. A first data stream is received with a first beam pattern from the source device through the first link and a second data stream with a second beam pattern is forwarded to a destination device through second link without de-modulating the first data stream. The method further includes monitoring a first set of communication parameters associated with the first set of antenna arrays, where the first beamforming setting is configured based on the monitoring of the first set of communication parameters.

公开(公告)号：US11799701B2

公开(公告)日：2023-10-24

申请号：US17888464

申请日：2022-08-15

Applicant: THE FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

Inventor： Zhenghao Zhang

IPC: H04W4/00 ,  H04L27/12 ,  H04L12/28 ,  H04J13/00 ,  H04W48/12

CPC classification number: H04L27/12 ,  H04J13/00 ,  H04L12/2854 ,  H04W48/12

Abstract: A novel LPWAN technology includes a ZCNET node that transmit signals that occupy a very small fraction of the signal space, resulting in very low collision probabilities. ZCNET supports parallel root channels within a single frequency channel by using Zadoff-Chu (ZC) root sequences. The root channels do not severely interfere with each other, because the interference power is spread evenly over the entire signal space. ZCNET has its node randomly choose the transmission channel and range, while still achieving high packet receiving ratios such as 0.9 or above, because the load in each root channel is small.

公开(公告)号：US11757582B2

公开(公告)日：2023-09-12

申请号：US17377983

申请日：2021-07-16

Applicant: GOLBA LLC

Inventor： Mehran Moshfeghi

IPC: H04L5/00 ,  H04B7/0408 ,  H04B7/0426 ,  H04B1/40 ,  H04L27/12 ,  H04W4/80 ,  H04W72/542 ,  H04W88/06 ,  H04B7/06 ,  H04W88/02 ,  H04B7/0413 ,  H04B7/08 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/044 ,  H04B7/024 ,  H04W84/12

CPC classification number: H04L5/0032 ,  H04B1/40 ,  H04B7/024 ,  H04B7/043 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0689 ,  H04B7/0897 ,  H04L27/12 ,  H04W4/80 ,  H04W24/08 ,  H04W72/046 ,  H04W72/0453 ,  H04W72/0473 ,  H04W72/542 ,  H04W88/02 ,  H04W88/06 ,  H04W84/12 ,  Y02D30/70

Abstract: A device that comprises a plurality of distributed transceivers, a central processor and a network management engine may be configured to function as relay device, relaying an input data stream from a source device to at least one other device. The relaying may include configuring one or more of the plurality of distributed transceivers to particular mode of relay operation and receiving the input data stream from the source device via at least one of the configured one or more of the plurality of distributed transceivers. The relaying may also include transmitting at least one relay data stream corresponding to the input data stream to the at least one other device, via at least one of the configured one or more of the plurality of distributed transceivers.

公开(公告)号：US11728897B2

公开(公告)日：2023-08-15

申请号：US17549779

申请日：2021-12-13

Applicant: Kookmin University Industry Academy Cooperation Foundation

Inventor： Yeong Min Jang ,  Ngoc Huy Nguyen

IPC: H04B10/50 ,  H04B10/556 ,  H04L27/12 ,  H04L27/10 ,  H04B10/116 ,  H04B10/11

CPC classification number: H04B10/5563 ,  H04B10/116 ,  H04B10/502 ,  H04L27/106 ,  H04L27/12 ,  H04B10/11 ,  H04B10/50 ,  H04B10/556

Abstract: An optical signal transmission method according to an embodiment of the disclosure is an optical signal transmission method in which a processor performs at least part of each operation, and may include an operation of receiving a data stream, an operation of separating at least part of the data stream into three channels, modulating the separated data streams respectively according to M-ary frequency shift keying (M-FSK) scheme so as to produce an FSK modulated signal, an operation of combining a plurality of FSK modulated signals modulated respectively in the three channels, and producing a color modulated signal according to a bit-color mapping table set in advance, and an operation of transmitting the color modulated signal by controlling a light source of the same optical channel based on the color modulated signal.

公开(公告)号：US20190246352A1

公开(公告)日：2019-08-08

申请号：US16388072

申请日：2019-04-18

Applicant: Sun Patent Trust

Inventor： Atsushi Sumasu ,  Daichi Imamura ,  Ayako Horiuchi ,  Yasuaki Yuda

IPC: H04W52/02 ,  H04B17/309 ,  H04L12/18 ,  H04L27/12 ,  H04W24/08 ,  H04L5/00 ,  H04L27/26 ,  H04J11/00 ,  H04W72/00

CPC classification number: H04W52/0216 ,  H04B17/309 ,  H04J11/005 ,  H04J11/0053 ,  H04J11/0056 ,  H04L5/0007 ,  H04L5/005 ,  H04L12/18 ,  H04L12/189 ,  H04L27/12 ,  H04L27/2611 ,  H04W24/08 ,  H04W52/0206 ,  H04W72/005 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/25

Abstract: The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.

公开(公告)号：US20180331865A1

公开(公告)日：2018-11-15

申请号：US15976289

申请日：2018-05-10

Applicant: Wiliot, LTD.

Inventor： Dotan ZIV ,  Yuval DOMB

IPC: H04L27/12

CPC classification number: H04L27/12 ,  H04L27/00 ,  H04Q9/00 ,  H04Q2209/43 ,  H04Q2209/47 ,  H04Q2209/88

Abstract: Certain embodiments disclosed herein include a circuit for generating modulated backscattered sensory data. The circuit includes a sensor configured to produce sensory data in a format of a bitstream; a waveformer configured to generate a waveform signal (m(t)) compliant with a wireless protocol; a backscatter mixer configured to modulate each bit in the bitstream using the waveform signal; and a wakeup trigger configured to trigger the backscatter mixer in response to a reception of a packet from a first wireless device, wherein the modulated backscattered bitstream is being transmitted to a second wireless device.

公开(公告)号：US20180302204A1

公开(公告)日：2018-10-18

申请号：US16015053

申请日：2018-06-21

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka Murakami ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC: H04L5/00 ,  H04W52/52 ,  H04B7/06 ,  H04L1/06 ,  H04L29/06 ,  H04L27/26 ,  H04L27/18 ,  H04L27/14 ,  H04L27/12 ,  H04L27/06 ,  H04L27/04 ,  H04L25/02 ,  H04B7/08 ,  H04B7/0413 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0697 ,  H04B7/082 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/003 ,  H04L25/0204 ,  H04L25/0206 ,  H04L27/04 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/18 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2659 ,  H04L27/2691 ,  H04L27/2695 ,  H04L69/22 ,  H04W52/52 ,  H04W72/0453

Abstract: A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM modulation signal. The transmission apparatus also includes a transmitter that transmits the first OFDM modulation signal from a first antenna and the second OFDM modulation signal from a second antenna, in an identical frequency band. A reception apparatus is provided, which includes a plurality of antennas that receive a plurality of OFDM modulation signals; a plurality of OFDM demodulators that transform the plurality of OFDM modulation signals to a plurality of reception signals using Fourier transform; an estimator that outputs a distortion estimation signal using one or more symbols for demodulation included in the plurality of reception signals; and a demodulator that compensates for distortion of the reception signals using the distortion estimation signal and demodulates a data symbol included in the reception signals.

公开(公告)号：US20180295574A1

公开(公告)日：2018-10-11

申请号：US16008184

申请日：2018-06-14

Applicant: Sun Patent Trust

Inventor： Atsushi Sumasu ,  Daichi Imamura ,  Ayako Horiuchi ,  Yasuaki Yuda

IPC: H04W52/02 ,  H04W72/00 ,  H04B17/309 ,  H04W24/08 ,  H04L27/26 ,  H04L27/12 ,  H04L12/18 ,  H04L5/00 ,  H04J11/00

CPC classification number: H04W52/0216 ,  H04B17/309 ,  H04J11/005 ,  H04J11/0053 ,  H04J11/0056 ,  H04L5/0007 ,  H04L5/005 ,  H04L12/18 ,  H04L12/189 ,  H04L27/12 ,  H04L27/2611 ,  H04W24/08 ,  H04W52/0206 ,  H04W72/005 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/25

Abstract: The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.