公开(公告)号：US12256385B2

公开(公告)日：2025-03-18

申请号：US17495473

申请日：2021-10-06

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta

IPC: H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may be configured to transmit a first sidelink control information (SCI) message associated with a first sidelink transmission from the first UE, the first SCI including a first indication of a first set of resources reserved for retransmissions of the first sidelink transmission at one or more retransmission occasions. The UE may identify a second SCI message associated with the first SCI message, the second SCI message including frequency domain resource allocation (FDRA) field values indicative of a second set of resources reserved for retransmissions of a second sidelink transmission, where the second SCI provides a release of at least some of the reserved resources. Additional aspects of signaling one or more configurations via resource indication fields are described.

公开(公告)号：US12207259B2

公开(公告)日：2025-01-21

申请号：US17647003

申请日：2022-01-04

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Junyi Li

IPC: H04W72/20 ,  H04L1/00 ,  H04L5/00 ,  H04W28/26

Abstract: Aspects are provided which allow a base station to indicate use of a mini-slot based resource allocation in sidelink communications between a Tx UE and a Rx UE. Initially, the base station configures control information indicating a sidelink data resource for a mini-slot, and transmits the control information to a Tx UE. After the Tx UE receives the control information, the Tx UE transmits sidelink data in the sidelink data resource to a Rx UE. Similarly, the Rx UE receives the control information from either the Tx UE or the base station, and the Rx UE receives the sidelink data in the sidelink data resource from the Tx UE. Accordingly, the base station may schedule the Tx UE and Rx UE to communicate sidelink data in mini-slots rather than slots, thereby reducing scheduling latency, increasing the number of available resources, and achieving more flexibility in sidelink communications.

公开(公告)号：US12193013B2

公开(公告)日：2025-01-07

申请号：US17448040

申请日：2021-09-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Xiaoxia Zhang ,  Jing Sun ,  Junyi Li ,  Sony Akkarakaran

IPC: H04W52/00 ,  H04W24/08 ,  H04W52/24 ,  H04W52/34 ,  H04W52/36 ,  H04W72/23

Abstract: Methods, apparatuses, and computer-readable medium for soft cancellation of sidelink transmissions are provided. An example method may include receiving, from a base station, DCI comprising at least one of: an open loop power control parameter, a maximum transmit power, or a closed loop power control parameter. The open loop power control parameter, the maximum transmit power, or the closed loop power control parameter may be associated with a PSSCH or a PSCCH. The example method may further include reducing a transmit power of a scheduled transmission associated with the PSSCH or the PSCCH to a reduced transmit power if the reduced transmit power is above a threshold or cancel the scheduled transmission if the reduced transmit power is below the threshold. The reduced transmit power may be based on the open loop power control parameter, the maximum transmit power, or the closed loop power control parameter.

公开(公告)号：US20240421119A1

公开(公告)日：2024-12-19

申请号：US18336331

申请日：2023-06-16

Applicant: QUALCOMM Incorporated

Inventor： Yangyang Sun ,  Yue Li ,  Lily Zhao ,  Piyush Gupta ,  Xuefeng Zhang

IPC: H01L23/00

Abstract: Flexible under-bump metallization sizes and patterning, and related integrated circuit packages and fabrication methods are disclosed. First under-bump metallizations (UBMs) of a first, larger size and pitch are provided in the die and coupled to corresponding metal interconnects in the package substrate. One or more second UBMs of a second, reduced size UBMs can also be located in the core area of the die. This provides greater flexibility in the design and layout of the die, because different circuits within the die (e.g., I/O related circuits) may only require coupling to smaller size UBMs for performance requirements and thus can be more flexibility located in the die. Also, to further reduce pitch of the second, smaller size UBMs, one or more of the second, smaller size UBMs can be formed as oblong-shaped UBMs, which can still maintain a minimum separation based on metal interconnect pitch limitations in the package substrate.

公开(公告)号：US12171005B2

公开(公告)日：2024-12-17

申请号：US17647882

申请日：2022-01-13

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Junyi Li

IPC: H04W72/21 ,  H04W72/121 ,  H04W72/23 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from each of multiple devices that communicate with the UE via one or more sidelink channels, information indicating a buffer status of the device. The UE may transmit, to a base station, a buffer status report that indicates a combined sidelink buffer status for the multiple devices. Numerous other aspects are described.

公开(公告)号：US12133184B2

公开(公告)日：2024-10-29

申请号：US17371003

申请日：2021-07-08

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Xiaoxia Zhang ,  Piyush Gupta ,  Junyi Li ,  Jing Sun ,  Sony Akkarakaran ,  Peter Gaal ,  Gabi Sarkis

IPC: H04W72/12 ,  H04W52/52 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W52/52 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/12

Abstract: Aspects relate to techniques for facilitating sidelink cancellation of an automatic gain control (AGC) symbol of a sidelink transmission. A network entity, such as a base station, may transmit sidelink scheduling information scheduling a sidelink transmission from a transmitting wireless communication device to a receiving wireless communication device. The network entity may further transmit a cancellation indication indicating an overlap between an AGC symbol of time resources allocated for the sidelink transmission and an additional transmission. Based on the cancellation indication, the transmitting wireless communication device may selectively transmit the sidelink transmission.

公开(公告)号：US12074732B2

公开(公告)日：2024-08-27

申请号：US18306977

申请日：2023-04-25

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Tianyang Bai ,  Xiaojie Wang ,  Xiaoxia Zhang ,  Jing Sun ,  Peter Gaal ,  Juan Montojo ,  Piyush Gupta ,  Wooseok Nam ,  Mahmoud Taherzadeh Boroujeni ,  Hua Wang ,  Lik Hang Silas Fong ,  Yan Zhou

IPC: H04L25/02 ,  H04W52/52 ,  H04W52/54

CPC classification number: H04L25/0222 ,  H04W52/52 ,  H04W52/54

Abstract: Apparatus, methods, and computer-readable media for facilitating phase jump estimation for SL DMRS bundling are disclosed herein. An example method includes receiving, from another device, first information at a first symbol of a first slot, the first slot including at least the first symbol and a first reference signal. The example method also includes receiving second information at a second symbol of a second slot, the second slot including at least the second symbol and a second reference signal, the first information and the second information being repetitions. The example method also includes generating a first reference signal copy based at least on the second reference signal and a phase jump between the first slot and the second slot. Additionally, the example method includes performing channel estimation across the first slot and the second slot based on an aggregation of the first reference signal and the first reference signal copy.

公开(公告)号：US20240250852A1

公开(公告)日：2024-07-25

申请号：US18159078

申请日：2023-01-24

Applicant: QUALCOMM Incorporated

Inventor： Raviteja Patchava ,  Piyush Gupta ,  Xiaoxia Zhang

IPC: H04L25/02 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04L25/0224 ,  H04B7/0626 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communications are described. A network node may determine channel state information (CSI) for a link with an energy harvesting (EH)-capable device based on measurements of backscattered signals reflected from the EH-capable device. The network node may include multiple antennas and may indicate, to the EH-capable device, a frequency shift to be applied by the EH-capable device to backscattering. The network node may transmit reference signals from each antenna of the network node. The EH-capable device may backscatter the received reference signals in accordance with the indicated frequency shift, and the network node may measure the frequency-shifted backscattered responses to the reference signals to determine CSI between the different antennas and the EH-capable device. Based on the identified CSI, the network node may perform channel selection and/or spatial beamforming to increase received power at the EH-capable device for downlink transmissions to the EH-capable device.

公开(公告)号：US12010677B2

公开(公告)日：2024-06-11

申请号：US17372140

申请日：2021-07-09

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Xiaoxia Zhang ,  Piyush Gupta ,  Jing Sun ,  Sony Akkarakaran ,  Junyi Li ,  Peter Gaal ,  Juan Montojo

IPC: H04W72/1263 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/23

CPC classification number: H04W72/1263 ,  H04L5/0051 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive, from a base station, a first downlink control information (DCI) message which schedules a sidelink transmission from the first UE to a second UE on a first set of resources associated with a sidelink shared channel. The first UE may additionally receive a second DCI which indicates a second set of resources which are cancelled from the first set of resources. Based on the cancellation indication, the first UE may modify or cancel at least a portion of the sidelink transmission originally scheduled for the second UE, and may transmit the modified sidelink transmission over a portion of the first set of resources in accordance with the cancellation indication, the first DCI, and the second DCI.

公开(公告)号：US11968697B2

公开(公告)日：2024-04-23

申请号：US17399749

申请日：2021-08-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Lik Hang Silas Fong

IPC: H04W72/51 ,  H04L5/00 ,  H04W4/02 ,  H04W52/28

CPC classification number: H04W72/51 ,  H04L5/0048 ,  H04W4/023 ,  H04W52/283

Abstract: The described techniques relate to improved methods, systems, devices, and apparatuses that support spatial reuse for sidelink communications. Generally, the described techniques provide for a user equipment (UE) to reuse resources for receiving sidelink transmissions. The UE may receive a first sidelink control channel that may indicate a set of reserved resources for sidelink communications associated with a second UE. The first UE may decode a second sidelink control channel from the second UE based on the first sidelink control channel. The first UE may determine that the set of resources is available for use based on a result of decoding the second sidelink control channel, a radius of the second sidelink control channel, and the distance between the first UE and the second UE.