公开(公告)号：US12048023B2

公开(公告)日：2024-07-23

申请号：US17819525

申请日：2022-08-12

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Jing Sun ,  Seyed Ali Akbar Fakoorian ,  Ozcan Ozturk ,  Tao Luo

IPC: H04W74/08 ,  H04L5/00 ,  H04W24/10 ,  H04W52/34 ,  H04W74/00 ,  H04W74/0833

CPC classification number: H04W74/0833 ,  H04L5/0044 ,  H04W24/10 ,  H04W52/34 ,  H04W74/006

Abstract: Certain aspects of the present disclosure provide techniques for random-access channel (RACH) communication. For example, certain aspects provide a method for falling back from a 2-step RACH procedure to a 4-step RACH procedure.

公开(公告)号：US20240185017A1

公开(公告)日：2024-06-06

申请号：US18073488

申请日：2022-12-01

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Jing Sun ,  Mohammad Tarek Fahim ,  Srinivas Yerramalli

IPC: G06K19/067 ,  H04B17/10 ,  H04L43/0864

CPC classification number: G06K19/0675 ,  H04B17/104 ,  H04L43/0864

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving multiple measurement reports associated with a surface acoustic wave (SAW) tag device. The multiple measurement reports include, for each transmission/reception point (TRP) of multiple TRPs, a measurement report of the TRP. The method also includes determining, based on the multiple measurement reports, a position of the SAW tag device. Other aspects and features are also claimed and described.

公开(公告)号：US20240179666A1

公开(公告)日：2024-05-30

申请号：US18060385

申请日：2022-11-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Jing Sun ,  Mohammad Tarek Fahim ,  Srinivas Yerramalli

IPC: H04W64/00 ,  G01S13/75

CPC classification number: H04W64/00 ,  G01S13/75

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving a tag device indicator that indicates a tag capability of a tag device. The method also includes generating a tag configuration associated with transmission of a backscatter signal based on a positioning reference signal (PRS). The tag configuration indicates a frequency shifting parameter based on a frequency shifting capability of a tag device, a phase scrambling parameter based on a phase scrambling capability of the tag device, or a combination thereof. The method further includes transmitting the tag configuration. Other aspects and features are also claimed and described.

公开(公告)号：US20240179549A1

公开(公告)日：2024-05-30

申请号：US18060408

申请日：2022-11-30

Applicant: QUALCOMM Incorporated

Inventor： Mohammad Tarek Fahim ,  Srinivas Yerramalli ,  Xiaojie Wang ,  Jing Sun

IPC: H04W24/10 ,  H04W56/00

CPC classification number: H04W24/10 ,  H04W56/0045 ,  H04W56/0065

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving, from a first transmission/receiving point (TRP), a first measurement report associated with a positioning session for a tag device. The method further includes receiving, from a second TRP, a second measurement report. The method also includes determining a position of the tag device based on the first measurement report, the second measurement report, and line of sight information associated with a line of sight between the first TRP and the second TRP. Other aspects and features are also claimed and described.

公开(公告)号：US11968541B2

公开(公告)日：2024-04-23

申请号：US17463053

申请日：2021-08-31

Applicant: QUALCOMM Incorporated

Inventor： Akash Sandeep Doshi ,  Srinivas Yerramalli ,  Lorenzo Ferrari ,  Taesang Yoo

IPC: H04W16/14 ,  G06N3/006 ,  G06N3/045 ,  G06N3/08 ,  G06N3/088 ,  H04W24/08

CPC classification number: H04W16/14 ,  G06N3/006 ,  G06N3/045 ,  G06N3/08 ,  G06N3/088 ,  H04W24/08

Abstract: A method of wireless communication performed by a first transmission device includes determining a set of spectrum sharing parameters based on sensing performed during a sensing period of a current time slot in a fixed contention based spectrum sharing system. The first transmission device shares a spectrum with a second transmission device. The method also includes determining, at a first artificial neural network of the first transmission device, a transmission device action, and/or a transmission parameter in response to receiving the set of spectrum sharing parameters. The method further includes transmitting, from the first transmission device, to a first receiving device during a data transmission phase of the current time slot based on the transmission device action and/or the transmission parameter.

公开(公告)号：US11917570B2

公开(公告)日：2024-02-27

申请号：US17452049

申请日：2021-10-22

Applicant: QUALCOMM Incorporated

Inventor： Rajat Prakash ,  Xiaoxia Zhang ,  Srinivas Yerramalli ,  Seyed Ali Akbar Fakoorian ,  Vinay Joseph

IPC: H04W56/00

CPC classification number: H04W56/004 ,  H04W56/001 ,  H04W56/0065

Abstract: A wireless communication system is provided allowing a base station to indicate RTT compensation for UEs to adjust their local time clocks to correct propagation delay timing errors and synchronize with the global clock of a base station. A base station sends a downlink transmission including timing information to a UE and receives an uplink transmission from the UE after the downlink transmission. The base station determines a RTT compensation associated with the timing information based on a RTT between the downlink transmission and the uplink transmission. The base station then transmits the RTT compensation to the UE. UEs are thus allowed to synchronize at a high precision with the time clock of the base station. UEs may be configured with different resolutions or granularities in timing correction so that certain UEs can achieve high precision timing correction while other UEs can adjust their time clocks with less precision.

公开(公告)号：US11889481B2

公开(公告)日：2024-01-30

申请号：US17585304

申请日：2022-01-26

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Srinivas Yerramalli ,  Kaushik Chakraborty ,  Arumugam Chendamarai Kannan ,  Sungwoo Park ,  Wooseok Nam ,  Juan Montojo

IPC: H04W72/04 ,  H04W72/044

CPC classification number: H04W72/044

Abstract: Aspects described herein relate to resource block allocation for time domain single-carrier waveform processing in new radio (NR). Specifically, in an aspect, a guard band may be allocated for a single-carrier waveform in a time or frequency domain. In another aspect, a resource block may be allocated for a time domain single-carrier waveform.

公开(公告)号：US11864164B2

公开(公告)日：2024-01-02

申请号：US17302861

申请日：2021-05-13

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Jing Sun ,  Xiaoxia Zhang ,  Vinay Chande ,  Srinivas Yerramalli ,  Tao Luo ,  Juan Montojo

IPC: H04W72/121 ,  H04W72/044 ,  H04L5/00 ,  H04W16/28

CPC classification number: H04W72/044 ,  H04L5/0055 ,  H04W16/28 ,  H04W72/121

Abstract: The present disclosure relates to apparatus and methods of monitoring a region by a transmitting device within a wireless medium for transmissions using at least one directional beam covering the region. Upon determining that the region in the wireless medium is free of transmissions, the transmitting device transmits to a plurality of wireless devices in the region using a plurality of spatially separated directional beams. Other aspects of the disclosure relate to apparatus and methods for receiving an instruction, e.g., at a user equipment (UE), to perform a channel assessment at a first time. The UE monitors a region within a wireless medium for transmissions after receiving the instruction. Upon determining that the region is free of transmissions, the UE may send an acknowledgment of the received instruction.

公开(公告)号：US11864115B2

公开(公告)日：2024-01-02

申请号：US17368202

申请日：2021-07-06

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Rahul Malik ,  Tamer Kadous

IPC: H04W52/02 ,  H04W56/00 ,  H04L5/00 ,  H04W72/0446 ,  H04L27/26 ,  H04L1/00 ,  H04W24/10 ,  H04W72/21

CPC classification number: H04W52/0251 ,  H04L1/001 ,  H04L5/001 ,  H04L5/0051 ,  H04L5/0078 ,  H04L27/2646 ,  H04L27/2655 ,  H04W56/001 ,  H04W72/0446 ,  H04L5/0055 ,  H04L5/0057 ,  H04W24/10 ,  H04W56/0065 ,  H04W72/21

Abstract: Methods, systems, and devices for wireless communications are described that asynchronous carrier aggregation, including between high frequency band and lower frequency band transmissions. A user equipment (UE) may be configured to monitor transmissions in a first frequency band and a second frequency band. The UE may measure a timing difference between transmissions in the first frequency band and one or more of the transmissions in the second frequency band, and transmit an indication of the timing difference to a base station. The base station may use the timing difference to determine whether the UE is to use asynchronous carrier aggregation. If the base station determines that the UE is to use asynchronous carrier aggregation, the base station may configure the UE to observe at least a minimum amount of delay when conducting uplink signaling via one of the frequency bands.

公开(公告)号：US20230403584A1

公开(公告)日：2023-12-14

申请号：US17837922

申请日：2022-06-10

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed Hirzallah ,  Rajat Prakash ,  Srinivas Yerramalli

IPC: H04W24/08 ,  H04W72/04 ,  H04W24/10

CPC classification number: H04W24/08 ,  H04W72/0413 ,  H04W24/10 ,  H04W72/042

Abstract: Methods, systems, and devices for wireless communications are described. The method may include the user equipment (UE) receiving control signaling indicating a set of schemes for reporting an environmental state associated with the UE and measuring one or more channel characteristics according to a scheme of the set of schemes. Moreover, the UE may transmit a report indicating the environmental state associated with the UE based on measuring the one or more channel characteristics. A machine learning model implemented by the UE, a network entity, or both is based on the indicated environmental state associated with the UE.