公开(公告)号：US20250062841A1

公开(公告)日：2025-02-20

申请号：US18450350

申请日：2023-08-15

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Piyush GUPTA

IPC: H04B17/309 ,  H04W72/044

Abstract: A wireless communication device may include one or more memories, individually or in combination, having instructions and one or more processors, individually or in combination, configured to execute the instructions. In some examples, the wireless communication device may be configured to transmit a first signal. In some examples, the wireless communication device may be configured to transmit, after the first signal, a first plurality of signals including a second signal, wherein each of the plurality of signals is transmitted via one of a plurality of codebook directional beams. In some examples, the wireless communication device may be configured to receive, from a first energy harvesting (EH) device of a plurality of EH devices, a first backscatter signal in response the second signal, wherein the first backscatter signal indicates that the second signal satisfies a threshold condition.

公开(公告)号：US20240333556A1

公开(公告)日：2024-10-03

申请号：US18190924

申请日：2023-03-27

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Raviteja PATCHAVA ,  Xiaoxia ZHANG

IPC: H04L25/02 ,  G06K7/00 ,  H04J13/00 ,  H04L5/00

CPC classification number: H04L25/0202 ,  G06K7/0008 ,  H04J13/0062 ,  H04L5/0007

Abstract: A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, the UE receives, from a first reader device, multiple continuous wave (CW) signal sets. Each CW signal set of the multiple CW signal sets includes at least one CW signal. The UE further generates a set of reference signals corresponding to CW signals in the multiple CW signal sets, where the set of reference signals is generated based on at least one of a frequency spread or a frequency shift on the CW signals in the multiple CW signal sets. The UE further transmits, to the first reader device or a second reader device different from the first reader device, the set of reference signals corresponding to the multiple CW signal sets. The method allows for improved channel estimation while adhering to the power spectrum density (PSD) limitations.

公开(公告)号：US20240283295A1

公开(公告)日：2024-08-22

申请号：US18170134

申请日：2023-02-16

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Piyush GUPTA

IPC: H02J50/20 ,  H02J50/80

CPC classification number: H02J50/20 ,  H02J50/80

Abstract: Certain aspects of the present disclosure provide techniques for load resistance signaling for wireless power transfer. A method for wireless communication by a first wireless communication device includes receiving, from a second wireless communication device, a first plurality radio frequency (RF) signals, performing power measurements associated with the first plurality of RF signals, and transmitting, based in part on the power measurements, information indicating a waveform for the second wireless communication device to use to transmit a second plurality of RF signals to the first wireless communication device.

公开(公告)号：US20240259244A1

公开(公告)日：2024-08-01

申请号：US18103380

申请日：2023-01-30

Applicant: QUALCOMM Incorporated

Inventor： Morteza SOLTANI ,  Jing SUN ,  Xiaoxia ZHANG ,  Raviteja PATCHAVA ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL

IPC: H04L27/26

CPC classification number: H04L27/2613 ,  H04L27/2636

Abstract: A method for wireless communication by a user equipment (UE) includes transmitting, to a network node, a first message indicating a capability of the UE to transmit a multiplexed low peak-to-average power ratio (PAPR) demodulation reference signal (DM-RS) and a high PAPR reference signal (RS) within a single slot. The method also includes multiplexing, associated with the capability, the low PAPR DM-RS with the high PAPR RS within the single slot. The method further includes transmitting, to the network node, the multiplexed low PAPR DM-RS and high PAPR RS within the single slot.

公开(公告)号：US20240056344A1

公开(公告)日：2024-02-15

申请号：US17819464

申请日：2022-08-12

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Xiaoxia ZHANG ,  Junyi LI

IPC: H04L27/26 ,  H04W72/04

CPC classification number: H04L27/2666 ,  H04L27/2607 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for using a guard interval in a delay-Doppler domain. A method of wireless communication includes converting information in a delay-Doppler domain to a time-frequency domain, wherein the information includes data and at least one guard interval (GI); mapping the converted information to time and frequency resources of an orthogonal frequency domain multiplexing (OFDM) resource grid in the time-frequency domain; generating a time-domain waveform based on the OFDM resource grid, wherein the time-domain waveform includes one or more GIs; and outputting the time-domain waveform for transmission to a node.

公开(公告)号：US20230051510A1

公开(公告)日：2023-02-16

申请号：US17445124

申请日：2021-08-16

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jing SUN ,  Jun MA ,  Raviteja PATCHAVA ,  Morteza SOLTANI ,  Tao LUO ,  Iyab Issam SAKHNINI ,  Hemant SAGGAR

IPC: H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) or a base station may generate a discrete Fourier transform (DFT) waveform from separate DFT inputs of data content, a guard interval (GI) sequence, and tail suppression samples. The UE or the base station may generate a first communication with the DFT waveform using an inverse fast Fourier transform (IFFT) operation. The first communication may include, in a time domain, a data signal corresponding to the data content and a GI-based tail signal that corresponds to the GI sequence and that is suppressed with a tail suppression signal based at least in part on the tail suppression samples. The UE or the base station may transmit the first communication. Numerous other aspects are described.

公开(公告)号：US20230023316A1

公开(公告)日：2023-01-26

申请号：US17443399

申请日：2021-07-26

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jun MA ,  Morteza SOLTANI ,  Jing SUN ,  Raviteja PATCHAVA

IPC: H04L27/26 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiving device may receive, from a first wireless communication device on a first communication channel, a first communication that is configured with at least one guard interval (GI) sequence of a first GI type. The receiving device may receive, from the first wireless communication device or a second wireless communication device on the first communication channel or a second communication channel, a second communication that is configured with at least one GI sequence of a second GI type. Numerous other aspects are described.

公开(公告)号：US20250079887A1

公开(公告)日：2025-03-06

申请号：US18460349

申请日：2023-09-01

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Piyush GUPTA ,  Xiaoxia ZHANG

IPC: H02J50/00 ,  H04B7/22 ,  H04B17/318

Abstract: Disclosed are systems and techniques for wireless communications. For example, a first network device can transmit, to second network device(s), a first information signal including information indicating a frequency for a backscattered signal. The first network device can transmit, to a third network device, a second information signal including information indicating a frequency shift for shifting a reference signal to produce the backscattered signal. The first network device can transmit the reference signal to the third network device. The first network device can select, based on channel reports received from the second network device(s), the energy harvesting waveform and at least one second network device for providing the energy harvesting waveform to the third network device. The first network device can transmit, to the at least one second network device, a scheduling signal including scheduling instructions to transmit the energy harvesting waveform to the third network device.

公开(公告)号：US20250071815A1

公开(公告)日：2025-02-27

申请号：US18453771

申请日：2023-08-22

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Jing SUN ,  Xiaoxia ZHANG ,  Jing JIANG

IPC: H04W74/08 ,  H04B17/318 ,  H04W16/28

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may transmit, to a second network entity, a first random access communication including a random access preamble. The first network entity may receive, from the second network entity, a second random access communication including an identifier indicative of the random access preamble, and a first resource allocation. The first network entity may receive, from the second network entity, a third random access communication including the identifier, and indicating a second resource allocation. The first network entity may transmit, to the second network entity, a fourth random access communication via a particular resource allocation, wherein the particular resource is either the first resource allocation or the second resource allocation. Numerous other aspects are described.

公开(公告)号：US20250038841A1

公开(公告)日：2025-01-30

申请号：US18349741

申请日：2023-07-10

Applicant: QUALCOMM Incorporated

Inventor： Piyush GUPTA ,  Raviteja PATCHAVA

IPC: H04B7/22 ,  H04L5/00 ,  H04W72/1273

Abstract: The apparatus may be a network node configured to transmit, to a backscatter-capable device, a first indication of a first frequency range associated with a downlink (DL) transmission, a second indication of a second frequency range associated with an uplink (UL) communication from the backscatter-capable device, and a third indication of a third frequency range associated with an UL trigger from the backscatter-capable device. The apparatus may further be configured to receive, via the third frequency range, the UL trigger indicating that the backscatter-capable device has information to transmit. The apparatus may also be configured to transmit, based on receiving the UL trigger and via the first frequency range, a CW DL transmission for backscattering from the backscatter-capable device and receive, via the second frequency range, the information from the backscatter-capable device via the CW DL transmission backscattered by the backscatter-capable device.