公开(公告)号：US20250039031A1

公开(公告)日：2025-01-30

申请号：US18836693

申请日：2022-04-05

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie WANG ,  Piyush GUPTA ,  Junyi LI ,  Luanxia YANG

IPC: H04L27/26 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. An energy receiver may receive a first message that includes information indicative of a time division duplex (TDD) configuration for wireless energy and information transfer, the TDD configuration indicating a temporal arrangement of energy and information resources. In some examples, an energy transmitter may configure the TDD configuration as cell-specific, energy receiver-specific, or using a slot format indication (SFI). In addition, the TDD configuration may include flexible resources able to be used for energy or information transfer. The energy receiver may receive one or more energy signals during the energy resources in accordance with the TDD configuration, the one or more energy signals providing energy to the energy receiver. Accordingly, the energy receiver may transmit one or more information signals during the information resources in accordance with the TDD configuration.

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.

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：US20240275542A1

公开(公告)日：2024-08-15

申请号：US18167377

申请日：2023-02-10

Applicant: QUALCOMM Incorporated

Inventor： Piyush GUPTA ,  Xiaoxia ZHANG ,  Junyi LI

IPC: H04L5/00 ,  H03M5/12 ,  H04L1/00 ,  H04W72/0446 ,  H04W72/1268

CPC classification number: H04L5/0048 ,  H03M5/12 ,  H04L1/0009 ,  H04W72/0446 ,  H04W72/1268

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an ambient Internet-of-Things (IoT) device may receive configuration information indicating resources associated with an uplink trigger message that initiates a communication session between the ambient IoT device and a network device. The ambient IoT device may transmit the uplink trigger message to the network device using the resources associated with the uplink trigger message. Numerous other aspects are described.

公开(公告)号：US20240187998A1

公开(公告)日：2024-06-06

申请号：US18441946

申请日：2024-02-14

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar FAKOORIAN ,  Piyush GUPTA ,  Kapil GULATI ,  Junyi LI ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC

IPC: H04W52/24 ,  H04B17/318 ,  H04L5/00 ,  H04W24/10 ,  H04W52/10 ,  H04W72/21 ,  H04W72/23 ,  H04W72/53 ,  H04W92/18

CPC classification number: H04W52/245 ,  H04B17/318 ,  H04L5/0048 ,  H04W24/10 ,  H04W52/10 ,  H04W52/242 ,  H04W72/21 ,  H04W72/23 ,  H04W72/53 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing and reporting reference signal received power (RSRP) measurements. In particular, the techniques described herein may allow a user equipment (UE) to efficiently identify reference signals on which to perform RSRP measurements (e.g., based on signaling from a base station), identify when to report RSRP measurements (e.g., aperiodically, periodically, or semi-persistently), and identify a channel on which to report RSRP measurements (e.g., a sidelink channel or an uplink channel). In addition, the techniques described herein may also allow a UE to efficiently identify open loop parameters to use to determine an appropriate transmit power for transmitting to another UE over a sidelink.

公开(公告)号：US20240104824A1

公开(公告)日：2024-03-28

申请号：US17934869

申请日：2022-09-23

Applicant: QUALCOMM Incorporated

Inventor： Piyush GUPTA ,  Pavan Kumar AKKARAJU ,  Alexei Vladimirovich BOURD ,  Andrew Evan GRUBER

IPC: G06T15/06 ,  G06T17/00 ,  G06T17/10

CPC classification number: G06T15/06 ,  G06T17/005 ,  G06T17/10

Abstract: Systems and techniques are provided for accelerated ray tracing. For instance, a process can include obtaining a hierarchical acceleration data structure that includes a plurality of primitives of a scene object and obtaining a respective information value associated with each primitive included in the plurality of primitives. A sort order can be determined for two or more nodes included in a same level of the hierarchical acceleration data structure at least in part by sorting the two or more nodes based on a respective sorting parameter value determined for each respective node of the two or more nodes. Each respective sorting parameter value can be determined based on at least one information value associated with one or more primitives included in a sub-tree of each respective node of the two or more nodes. The hierarchical acceleration data structure can be traversed using the sort order.

公开(公告)号：US20240064664A1

公开(公告)日：2024-02-22

申请号：US18498249

申请日：2023-10-31

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Sony AKKARAKARAN ,  Tao LUO ,  Piyush GUPTA ,  Junyi LI ,  Peter GAAL ,  Hua WANG ,  Juan MONTOJO ,  Jing SUN ,  Wooseok NAM

IPC: H04W52/52 ,  H04W72/1263

CPC classification number: H04W52/52 ,  H04W72/1263

Abstract: Aspects of the present disclosure provide techniques for using automatic gain control symbols to indicate a sidelink mini-slot. A method performed by a transmitting user equipment includes transmitting, during a first time portion of a symbol within a slot, a first beam associated with a first receiving user equipment. The first time portion of the symbol is configured to indicate that the first receiving user equipment will receive another transmission from the transmitting user equipment during a first mini-slot within the slot associated with the first time portion. The method may further include transmitting, during a second time portion of the symbol within the slot, a second beam associated with a second receiving user equipment. The second time portion of the symbol is configured to indicate that the second receiving user equipment will receive another transmission from the transmitting user equipment during a second mini-slot within the slot.