公开(公告)号：US20240422039A1

公开(公告)日：2024-12-19

申请号：US18334130

申请日：2023-06-13

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Piyush GUPTA

IPC: H04L27/26 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A distributed unit (DU) may output to a radio unit (RU), a data waveform and an initial resource allocation for the data waveform. The RU may generate and transmit to the DU a peak-to-average power ratio (PAPR) for the data waveform and a peak power value for a transmission time interval (TTI). Based on the PAPR and the peak power value, the DU generate and forward to the RU a multiplexed signal. The multiplexed signal may include the data waveform associated with a first resource allocation and comprising a multi-tone energy waveform associated with a second resource allocation. In some examples, the multi-tone energy waveform may be used for power harvesting operations at one or more ambient wireless devices. The RU may transmit the multiplexed signal to one or more wireless devices.

公开(公告)号：US20240396587A1

公开(公告)日：2024-11-28

申请号：US18322884

申请日：2023-05-24

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Piyush GUPTA ,  Xiaoxia ZHANG

IPC: H04B5/00 ,  H04W72/04 ,  H04W72/542

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a network device to transfer energy to an energy harvesting (EH)-capable device via a multisine waveform. The network device may transmit the multisine waveform according to a multisine waveform configuration that indicates frequency locations for each EH channel of the multisine waveform across a channel bandwidth. In some cases, the network device may determine the multisine waveform configuration according to latency information of the passive IoT device, channel quality measurements for the channel bandwidth, or both. The multisine waveform configuration may indicate a distribution of individual EH channels across the channel bandwidth to improve frequency diversity, may indicate a contiguous grouping of EH channels to improve multisine gain, or a combination thereof.

公开(公告)号：US20240380536A1

公开(公告)日：2024-11-14

申请号：US18314399

申请日：2023-05-09

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Piyush GUPTA ,  Zhifei FAN ,  Jing SUN

IPC: H04L5/00 ,  H04W72/0453 ,  H04W72/1273

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a delta-frequency associated with a dual-tone downlink transmission from a network entity, the delta-frequency defining a frequency difference between two tones used for the dual-tone downlink transmission. The UE may receive the dual-tone downlink transmission from the network entity according to the two tones. The UE may decode the dual-tone downlink transmission based at least in part on the delta-frequency.

公开(公告)号：US20240333346A1

公开(公告)日：2024-10-03

申请号：US18192596

申请日：2023-03-29

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Piyush GUPTA

IPC: H04B7/0456

CPC classification number: H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. A network node may transmit a set of reference signals via a corresponding set of antennas, each antenna in the corresponding set of antennas associated with a unique precoding vector, wherein each precoding vector uses a combinational codeword based on a combination of codewords from a set of available codewords. The network node may receive, from an energy harvesting (EH)-capable device, a set of frequency-shifted backscatter responses corresponding to at least a subset of the set of reference signals. The network node may transmit, to the EH-capable device, a signal based on channel state information, wherein the channel state information is based on the set of frequency-shifted backscatter responses.

公开(公告)号：US20240267171A1

公开(公告)日：2024-08-08

申请号：US18166289

申请日：2023-02-08

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0023 ,  H04L27/2601 ,  H04W8/24

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability signaling indicating that orthogonal time frequency space index modulation (OTFS-IM) is supported by the UE. The UE may receive, based at least in part on the capability signaling, an indication of a subblock size of a subblock and an index modulation pattern associated with the subblock for the OTFS-IM. The UE may perform a communication based at least in part on the indication of the subblock size and the index modulation pattern for the OTFS-IM. Numerous other aspects are described.

公开(公告)号：US20240031089A1

公开(公告)日：2024-01-25

申请号：US17813665

申请日：2022-07-20

Applicant: QUALCOMM Incorporated

Inventor： Raviteja PATCHAVA ,  Jing SUN ,  Xiaoxia ZHANG ,  Zhifei FAN ,  Morteza SOLTANI ,  Jun MA ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04W72/044 ,  H04L27/2639

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive, based at least in part on a time-frequency domain resource block that is characterized at least by a frequency span and a time duration, a wireless signal that comprises: a first modulated portion located in a first partition of the time-frequency domain resource block, the first modulated portion being based at least in part on an orthogonal time frequency space (OTFS) modulation scheme, and a second modulated portion located in a second partition of the time-frequency domain resource block, the second modulated portion being based at least in part on a second modulation scheme. The mobile station may recover a channel state information reference signal (CSI-RS) from the first modulated portion or the second modulated portion. Numerous other aspects are described.

公开(公告)号：US20230189265A1

公开(公告)日：2023-06-15

申请号：US17644502

申请日：2021-12-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04B7/0456 ,  H04B7/01

CPC classification number: H04W72/0406 ,  H04W72/044 ,  H04B7/0456 ,  H04B7/01

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may precode a physical sidelink control channel (PSCCH) communication using a first delay-Doppler precoder. The UE may precode a physical sidelink shared channel (PSSCH) communication using one or more second delay-Doppler precoders. The UE may transmit the PSCCH communication and the PSSCH communication in a slot after precoding the PSCCH communication and the PSSCH communication. Numerous other aspects are described.

公开(公告)号：US20230090492A1

公开(公告)日：2023-03-23

申请号：US17482315

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Jun MA ,  Xiaoxia ZHANG ,  Morteza SOLTANI ,  Raviteja PATCHAVA ,  Elyes BALTI ,  Tao LUO ,  Iyab Issam SAKHNINI ,  Zhifei FAN ,  Dung Ngoc DOAN

IPC: H04L1/00 ,  H03M13/25 ,  H04L27/34

Abstract: Aspects present herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. The apparatus may encode a plurality of bits associated with QAM, the plurality of bits corresponding to a circular buffer associated with at least one RV, the plurality of bits including a plurality of systematic bits. The apparatus may also transfer the plurality of bits from the circular buffer associated with the at least one RV to a first buffer and a second buffer. Additionally, the apparatus may map the plurality of bits from the first buffer and the second buffer to a plurality of modulation symbols.

公开(公告)号：US20230065940A1

公开(公告)日：2023-03-02

申请号：US17446593

申请日：2021-08-31

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive first configuration information indicating a first guard interval associated with sidelink communications. The UE may transmit, to a base station and another UE, a first sidelink communication using the first guard interval. The UE may transmit, to the base station and using a second guard interval having a second length that is different from a first length of the first guard interval, an uplink communication. Numerous other aspects are described.

公开(公告)号：US20230053650A1

公开(公告)日：2023-02-23

申请号：US17405596

申请日：2021-08-18

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Raviteja PATCHAVA ,  Morteza SOLTANI ,  Jun MA ,  Jing SUN ,  Peter GAAL ,  Iyab Issam SAKHNINI

IPC: H04L27/26 ,  H04W28/26 ,  H04W72/04 ,  H04W72/12

Abstract: Disclosed are techniques for wireless communication. In an aspect, a wireless device maps data, a unique word (UW) sequence, and a suppression signal to a set of reserved time-domain resources based on a time-domain resource mapping and reservation rule to produce DFT input data. DFT processing is performed on the DFT input data to produce IFFT input data. IFFT processing is performed on the IFFT input data to produce the GI-based waveform with a data part (e.g., non-zero part) and a tail part (e.g., zero tail part). The wireless device may further transmit the GI-based waveform.