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1.发明申请公开(公告)号：US20240421856A1
公开(公告)日：2024-12-19
申请号：US18335837
申请日：2023-06-15
Applicant: QUALCOMM Incorporated
Inventor： Raviteja PATCHAVA , Piyush GUPTA
Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, a network device can transmit, to a group of passive devices, a continuous wave (CW) signal. The network device can receive, from each passive device of the group of passive devices, at least one backscatter signal, based on the CW signal, at a respective frequency shift. The network device can estimate, based on the at least one backscatter signal, channel information for each passive device of the group of passive devices. The network device can then determine, based on the channel information, a channel for transmitting an energy signal to at least one passive device of the group of passive devices for energy harvesting.
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2.发明公开公开(公告)号：US20240259056A1
公开(公告)日：2024-08-01
申请号：US18162443
申请日：2023-01-31
Applicant: QUALCOMM Incorporated
Inventor： Jing SUN , Raviteja PATCHAVA , Xiaoxia ZHANG
IPC: H04B7/0456 , H04B7/22
CPC classification number: H04B7/0456 , H04B7/22
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network entity may obtain a singular value decomposition (SVD) precoding vector that is based at least in part on backscatter associated with a reference signal transmitted by the network entity. The network entity may apply the SVD precoding vector to an output signal. The network entity may transmit the output signal based at least in part on a set of antennas. Numerous other aspects are described.
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公开(公告)号：US20240171006A1
公开(公告)日：2024-05-23
申请号：US18058218
申请日：2022-11-22
Applicant: QUALCOMM Incorporated
Inventor： Raviteja PATCHAVA , Piyush GUPTA , Xiaoxia ZHANG
CPC classification number: H02J50/001 , H04B17/30 , H04L5/0094
Abstract: Systems and techniques are provided for wireless communication. For example, a network device can transmit radio frequency (RF) signals. Each RF signal of the RF signals is associated with a respective sub-band of sub-bands included in a wideband bandwidth. The network device can receive, from an energy harvesting (EH)-capable device, backscatter RF signals. Each backscatter RF signal of the backscatter RF signals is associated with a respective RF signal of the RF signals. Each backscatter RF signal and each respective RF signal are associated with a respective sub-band of the sub-bands included in the wideband bandwidth. The network device can determine control information associated with the wideband bandwidth based on the backscatter RF signals.
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公开(公告)号：US20250097915A1
公开(公告)日：2025-03-20
申请号：US18469663
申请日：2023-09-19
Applicant: QUALCOMM Incorporated
Inventor： Raviteja PATCHAVA , Piyush GUPTA , Zhifei FAN
IPC: H04W72/0453
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a frequency offset of a helper tone associated with a data communication, the helper tone associated with assisting the UE to filter one or more of noise or interference from data signaling associated with the data communication. The UE may receive the helper tone and the data communication, comprising data signals at different frequencies that are based at least in part on the frequency offset of the helper tone. Numerous other aspects are described.
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公开(公告)号：US20250031059A1
公开(公告)日：2025-01-23
申请号：US18355214
申请日：2023-07-19
Applicant: QUALCOMM Incorporated
Inventor： Raviteja PATCHAVA , Piyush GUPTA
IPC: H04W16/28
Abstract: Methods, systems, and devices for wireless communication are described. The techniques described herein relate to beam sweeping to improve the range of wireless power transfer. An energy harvesting user equipment (UE) receives, from a network entity, an indication of a set of time resources associated with a beam sweeping transmission (e.g., polling operation) by the network entity and one or more frequency shifts associated with backscattering the beam sweeping transmission. The UE receives the beam sweeping transmission from the network entity in accordance with the set of time resources. The UE transmits a backscattered signal based on the beam sweeping transmission and the one or more frequency shifts. The UE receives, from the network entity, a beamformed power signal in accordance with transmitting the backscattered signal. The UE stores energy for powering the UE based on the beamformed power signal.
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Patent Agency Ranking
公开(公告)号：US20240396772A1
公开(公告)日：2024-11-28
申请号：US18323807
申请日：2023-05-25
Applicant: QUALCOMM Incorporated
Inventor： Raviteja PATCHAVA , Piyush GUPTA , Zhifei FAN
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may receive, from a second network entity, an indication of a first frequency offset associated with the second network entity. In some aspects, the first network entity may receive, from the second network entity, a first transmission including a first communication and a first helper signal that are separated in a frequency domain based on the first frequency offset. In some aspects, the first network entity may decode, via envelope tracking, the first transmission to obtain the first communication from the first transmission. Numerous other aspects are provided.
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公开(公告)号：US20240380645A1
公开(公告)日：2024-11-14
申请号：US18316937
申请日：2023-05-12
Applicant: QUALCOMM Incorporated
Inventor： Hemant SAGGAR , Iyab Issam SAKHNINI , Jing SUN , Xiaoxia ZHANG , Tao LUO , Junyi LI , Morteza SOLTANI , Raviteja PATCHAVA
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates, within each symbol of a plurality of symbols, an extra guard interval (GI) before data and a tail GI after the data. The UE may decode first data within a first symbol of the plurality of symbols at a first time location that is based at least in part on the extra GI and the tail GI within the first symbol. The UE may decode second data within a second symbol of the plurality of symbols at a second time location that is based at least in part on the tail GI within the second symbol. Numerous other aspects are described.
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公开(公告)号：US20230188404A1
公开(公告)日：2023-06-15
申请号：US17643540
申请日：2021-12-09
Applicant: QUALCOMM Incorporated
Inventor： Raviteja PATCHAVA , Jun MA , Morteza SOLTANI
CPC classification number: H04L27/2697 , H04L5/0007 , H04L27/2636
Abstract: Certain aspects of the present disclosure provide techniques for hybrid modulation and demodulation, which may include multiplexing and demultiplexing different waveform types. An example method includes receiving a time-domain waveform from a transmitting entity and converting the time-domain waveform to a frequency domain. The method also includes identifying a first set of time and frequency resources associated with converted first information and a second set of time and frequency resources associated with second information in time and frequency resources of an orthogonal frequency domain multiplexing (OFDM) resource grid in a time-frequency domain. The method further includes decoding the first set of time and frequency resources to generate first information from the converted first information. For certain aspects, the first information may be precoded with an orthogonal time frequency space (OTFS) modulation.
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公开(公告)号：US20230110723A1
公开(公告)日：2023-04-13
申请号：US17500853
申请日：2021-10-13
Applicant: QUALCOMM Incorporated
Inventor： Hemant SAGGAR , Iyab Issam SAKHNINI , Raviteja PATCHAVA , Morteza SOLTANI , Jun MA , Tao LUO
Abstract: A method for wireless communication at a user equipment (UE) includes receiving, from a base station, a slot parameter that configures the UE to receive a number of symbols within a self-contained slot. The method also includes receiving, from the base station, a cyclic prefix (CP) parameter associated with a single symbol of the number of symbols, the CP parameter indicating a source of samples for a CP included at a beginning of the single symbol. The method further includes receiving, from the base station, the number of symbols within the self-contained slot. In some examples, a guard interval (GI) may be included at one or both of an end or a beginning of each symbol of the number of symbols. The CP may be outside a single FFT window of a number of FFT windows, associated with the single symbol of the number of symbols.
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公开(公告)号：US20250030585A1
公开(公告)日：2025-01-23
申请号：US18353636
申请日：2023-07-17
Applicant: QUALCOMM Incorporated
Inventor： Morteza SOLTANI , Jing SUN , Xiaoxia ZHANG , Raviteja PATCHAVA , Iyab Issam SAKHNINI
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting device may generate a frequency-domain-multiplexed signal by performing frequency domain multiplexing of a data signal and a reference signal within a symbol of a discrete Fourier transform spread orthogonal frequency domain multiplexing waveform communication, the reference signal being one of a demodulation reference signal, a sounding reference signal, or a channel state information reference signal. The transmitting device may transmit, to a receiving device, the frequency-domain-multiplexed signal. Numerous other aspects are described.
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