公开(公告)号：US20240147399A1

公开(公告)日：2024-05-02

申请号：US18050012

申请日：2022-10-26

Applicant: QUALCOMM Incorporated

Inventor： Marwen ZORGUI ,  Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Rajat PRAKASH

IPC: H04W56/00 ,  H04J3/06

CPC classification number: H04W56/009 ,  H04J3/0682 ,  H04W56/006

Abstract: Aspects presented herein may enable a network entity to calculate a relative clock drift between a Tx antenna panel and an Rx antenna panel that use different RF hardware/circuits (e.g., clocks). In one aspect, a network entity obtains a plurality of RTT measurements between a Tx antenna panel, a device with a known position, and an Rx antenna panel over a period of time, where the Tx antenna panel is associated with a first clock and the Rx antenna panel is associated with a second clock. The network entity obtains a first timing delay associated with the device based on the plurality of RTT measurements. The network entity calculates a clock offset between the Tx antenna panel and the Rx antenna panel based on the obtained first timing delay associated with the device.

公开(公告)号：US20240133995A1

公开(公告)日：2024-04-25

申请号：US18047946

申请日：2022-10-18

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed HIRZALLAH ,  Srinivas YERRAMALLI ,  Yun CHEN ,  Rajat PRAKASH ,  Taesang YOO

IPC: G01S5/02

CPC classification number: G01S5/02525 ,  G01S5/0264

Abstract: In an aspect, a method performed by a network node includes obtaining a first plurality of radio frequency fingerprint positioning (RFFP) measurements corresponding to a plurality of known displacements between positions of a user equipment (UE); and training a positioning model to provide a position estimate of the UE, wherein the training of the positioning model is at least based on the first plurality of RFFP measurements and the known displacements between the positions of the UE corresponding to the first plurality of RFFP measurements.

公开(公告)号：US20240098688A1

公开(公告)日：2024-03-21

申请号：US18263259

申请日：2022-03-08

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Mukesh KUMAR ,  Srinivas YERRAMALLI ,  Sven FISCHER

IPC: H04W64/00 ,  G01S5/02 ,  H04L5/00

CPC classification number: H04W64/006 ,  G01S5/0236 ,  H04L5/0048

Abstract: Techniques for positioning assistance data (AD) delivery for reduced signaling overhead may comprise determining a combined positioning AD for a requesting user equipment (UE) based at least in part on the area ID in which the requesting UE is located. The combined positioning AD may include positioning AD for the first area and one or more additional areas. For each of the area, the positioning AD may comprise information regarding Positioning Reference Signal (PRS) resources, Base Station Almanac (BSA) information, or both, to be used for positioning the requesting UE within the respective area. The first area and the one or more additional areas may comprise cells of the wireless communication network or sidelink (SL) group zones.

公开(公告)号：US20240080740A1

公开(公告)日：2024-03-07

申请号：US18262177

申请日：2022-02-02

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Alexandros MANOLAKOS ,  Mukesh KUMAR

IPC: H04W36/32 ,  H04L5/00 ,  H04W64/00 ,  H04W76/20

CPC classification number: H04W36/322 ,  H04L5/0051 ,  H04W64/00 ,  H04W76/20

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) may receive positioning assistance data for a plurality of cells, the positioning assistance data including at least a first positioning reference signal (PRS) configuration for a first cell of the plurality of cells and a second PRS configuration for a second cell of the plurality of cells. The UE may perform a handover from the first cell to the second cell during a positioning session with at least the first cell and the second cell. The UE may, after the handover, measure PRS from the second cell based on the second PRS configuration.

公开(公告)号：US20240064689A1

公开(公告)日：2024-02-22

申请号：US17820138

申请日：2022-08-16

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed HIRZALLAH ,  Xiaoxia ZHANG ,  Srinivas YERRAMALLI

IPC: H04W64/00 ,  G01S5/02

CPC classification number: H04W64/003 ,  G01S5/02521

Abstract: Disclosed are techniques for UE-based wireless positioning. In an aspect, a user equipment (UE) may acquire, from a first set of transmission/reception entities (TREs), a first set of measurements of signals. The UE may select, from the first set of TREs, a second set of TREs, based on criteria for selecting and/or prioritizing TREs for radio frequency fingerprint (RFFP)-based positioning. The UE may acquire, from the second set of TREs, a second set of measurements, the second set of measurements comprising RFFP measurements. The UE may estimate a position of the UE based on the second set of measurements. In an aspect, the UE may input the second set of measurements into a trained machine learning (ML) model that outputs an estimated position of the UE. In an aspect, the UE receives the selection/prioritization criteria and/or the trained ML model from a network node.

公开(公告)号：US20240049279A1

公开(公告)日：2024-02-08

申请号：US18488837

申请日：2023-10-17

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Lorenzo FERRARI ,  Yih-Hao LIN

IPC: H04W74/00 ,  H04L5/00 ,  H04W76/11 ,  H04L25/02 ,  H04W74/08

CPC classification number: H04W74/006 ,  H04W74/008 ,  H04L5/0051 ,  H04W76/11 ,  H04L25/0226 ,  H04W74/0833

Abstract: In an embodiment, a serving BS of a UE may transmit a PDCCH communication to the UE. The PDCCH communication triggers a partial RACH procedure, whereby a RACH transmission is performed. In some designs, the RACH transmission is for positioning, and positioning measurements are performed at the serving BS and (optionally) at one or more non-serving BSs. In some designs, measurement data based on the positioning measurements are conveyed to a position estimation entity (e.g., LMF), which performs a positioning estimate of the UE.

公开(公告)号：US20240048220A1

公开(公告)日：2024-02-08

申请号：US18452412

申请日：2023-08-18

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Arumugam CHENDAMARAI KANNAN ,  Vinay CHANDE ,  Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO

IPC: H04B7/08 ,  H04W74/08 ,  H04W48/02 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04B7/088 ,  H04B7/0888 ,  H04W74/0875 ,  H04W48/02 ,  H04L5/0053 ,  H04W72/23

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for managing beam selection. In one aspect, an initiating wireless device may determine whether a pre-grant acknowledgement associated with a first beam has been received from a responding wireless device within an expected receive time. The initiating wireless device may generate an indication to prevent the initiating wireless device from using the first beam for a blocking duration in response to determining that the pre-grant acknowledgement associated with the first beam has not been received within the expected receive time.

公开(公告)号：US20240045018A1

公开(公告)日：2024-02-08

申请号：US18489702

申请日：2023-10-18

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Jing SUN ,  Xiaoxia ZHANG

IPC: G01S5/06 ,  H04W16/14 ,  H04L41/0803 ,  H04L5/00

CPC classification number: G01S5/06 ,  H04W16/14 ,  H04L41/0803 ,  H04L5/0048 ,  H04W84/042

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a serving cell operating on a first frequency, an inter-frequency communication gap configuration specifying at least one period of time during which the UE is permitted to tune from the first frequency to a second frequency to perform a positioning operation, wherein one or more neighboring cells of the serving cell are operating on the second frequency, tunes from the first frequency to the second frequency at a start of the at least one period of time, and performs, during the at least one period of time, the positioning operation on the second frequency.

公开(公告)号：US20240023105A1

公开(公告)日：2024-01-18

申请号：US18355316

申请日：2023-07-19

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Wanshi CHEN ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Naga BHUSHAN ,  Aleksandar DAMNJANOVIC ,  Srinivas YERRAMALLI ,  Tingfang JI ,  Hao XU ,  Peter GAAL

IPC: H04W72/21 ,  H04L5/00 ,  H04L27/00 ,  H04B7/0452 ,  H04W74/08

CPC classification number: H04W72/21 ,  H04L5/0032 ,  H04L27/0006 ,  H04L5/001 ,  H04L5/0051 ,  H04L5/0073 ,  H04L5/0041 ,  H04B7/0452 ,  H04L5/0048 ,  H04W74/0833 ,  H04B7/0604

Abstract: Techniques are described for wireless communication. An orthogonal frequency-division multiple access (OFDMA) configuration of an uplink channel is identified for communications in an unlicensed radio frequency spectrum band. An OFDMA waveform is generated based on the identified OFDMA configuration. The OFDMA waveform is communicated in a signal in the unlicensed radio frequency spectrum band. A virtual cell identifier of a first base station may be associated with transmissions between the first base station and a first user equipment (UE). A set of common resource blocks may be identified for transmission of a demodulation reference signal (DM-RS) between the first base station and the first UE. A configuration of an uplink channel may be dynamically selected for uplink communications in an unlicensed radio frequency spectrum band. A waveform may be generated based on the selected configuration. The waveform may be communicated in a signal in the unlicensed radio frequency spectrum band.

公开(公告)号：US20240019528A1

公开(公告)日：2024-01-18

申请号：US17813279

申请日：2022-07-18

Applicant: QUALCOMM Incorporated

Inventor： Marwen ZORGUI ,  Srinivas YERRAMALLI ,  Taesang YOO

IPC: G01S5/02

CPC classification number: G01S5/02521 ,  G01S5/0263

Abstract: In an aspect, a method of wireless communication performed by a user equipment (UE) includes determining that a positioning model error instance has occurred during a positioning occasion based on 1) a position uncertainty associated with a first position estimate satisfying positioning uncertainty error criteria, wherein the first position estimate is obtained during the positioning occasion by applying a first positioning model to radio frequency fingerprint (RFFP) measurements, 2) a positioning mismatch between the first position estimate of the UE and a second position estimate of the UE satisfying position mismatch error criteria, wherein the second position estimate of the UE is obtained during the positioning occasion by performing a positioning technique that does not use the first positioning model, or 3) any combination thereof; and determining that the first positioning model has failed based on a number of positioning model error instances satisfying positioning model failure criteria.