公开(公告)号：US20240080815A1

公开(公告)日：2024-03-07

申请号：US18262540

申请日：2022-03-11

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia ABOTABL ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Krishna Kiran MUKKAVILLI ,  Alexandros MANOLAKOS

IPC: H04W72/0446 ,  H04W72/232

CPC classification number: H04W72/0446 ,  H04W72/232

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication to switch from a first time domain pattern to a second time domain pattern. The UE may switch to the second time domain pattern a switching time duration after receiving the indication. The UE may communicate with the base station according to the second time domain pattern. Numerous other aspects are described.

公开(公告)号：US20240080793A1

公开(公告)日：2024-03-07

申请号：US18261253

申请日：2022-01-10

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Alexandros MANOLAKOS ,  Mukesh KUMAR

IPC: H04W64/00 ,  H04L5/00

CPC classification number: H04W64/00 ,  H04L5/0048

Abstract: In an aspect, a BS transmits, to a UE, a time-varying RS-P configuration (e.g., for DL-PRS or SRS-P, such as UL-SRS-P or SL-SRS-P) that comprises a first RS-P configuration associated with a first time period and a second RS-P configuration associated with a second time period. In another aspect, a BS transmits, to a UE, a varying SRS-P configuration that comprises a first SRS-P configuration, a second SRS-P configuration, and at least one event-triggering condition for transitioning between the first and second SRS-P configurations. The UE transmits SRS-P or receives and measures DL-PRS in accordance with the time-varying RS-P configuration or the varying SRS-P configuration.

公开(公告)号：US20240049193A1

公开(公告)日：2024-02-08

申请号：US18006325

申请日：2021-08-25

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Wei YANG ,  Alexandros MANOLAKOS

IPC: H04W72/0446 ,  H04W72/231 ,  H04L5/00 ,  H04W76/20

CPC classification number: H04W72/0446 ,  H04W72/231 ,  H04L5/0051 ,  H04W76/20

Abstract: In an aspect, a base station (BS) transmits, to a user equipment (UE), a downlink control information (DCI) communication that is configured to trigger transmission of an aperiodic (AP) sounding reference signal (SRS). The UE determines a slot offset from the DCI communication to an SRS resource set for the AP SRS based at least in part on an DCI codepoint (i.e., AP SRS resource trigger value) of the DCI communication. The UE transmits the AP SRS on the SRS resource set in accordance with the determined slot offset.

公开(公告)号：US20240048348A1

公开(公告)日：2024-02-08

申请号：US18264224

申请日：2021-04-25

Applicant: QUALCOMM INCORPORATED

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Kexin XIAO ,  Ruiming ZHENG ,  Runxin WANG ,  Peter GAAL ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00

CPC classification number: H04L5/0098 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0094 ,  H04L1/1614

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling indicating a configuration for use by the UE to select one or more of a plurality of resource sets for a bandwidth part (BWP) for the UE, where each of the resource sets comprise reference signal resources that correspond to one or more antenna ports of the UE. The UE may receive, from the base station, an activation message instructing the UE to activate at least one resource set of the plurality of resource sets for reference signal transmission using the BWP. The UE may transmit a reference signal over the activated resource set using the BWP and at least one antenna port of the one or more antenna ports based at least in part on the activation message, the antenna port corresponding to the activated resource set.

公开(公告)号：US20240048307A1

公开(公告)日：2024-02-08

申请号：US18264528

申请日：2022-01-31

Applicant: QUALCOMM INCORPORATED

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Hung Dinh LY

IPC: H04L5/00 ,  H04W64/00 ,  H04B7/04 ,  H04W24/10

CPC classification number: H04L5/0048 ,  H04W64/003 ,  H04B7/04013 ,  H04W24/10

Abstract: A signal reporting method includes: transmitting, from a first wireless signaling device at a first time, a first PRS (positioning reference signal) to a second wireless signaling device via a first RIS (reconfigurable intelligent surface); receiving, at the first wireless signaling device at a second time, a second PRS from the second wireless signaling device via a second RIS that is physically separate from the first RIS; and providing a signal report including at least one time value corresponding to the first time and the second time, and indicative of the first PRS and the second PRS.

公开(公告)号：US20240039671A1

公开(公告)日：2024-02-01

申请号：US18020415

申请日：2021-08-11

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Hung Dinh LY ,  Alexandros MANOLAKOS ,  Gokul SRIDHARAN ,  Peter GAAL

IPC: H04L5/00 ,  H04W56/00

CPC classification number: H04L5/0051 ,  H04L5/0035 ,  H04W56/0045

Abstract: Methods, computer program products, and apparatuses for adaptive PDSCH and DMRS pattern are provided. An example method may include receiving, from a UE, a frequency shift estimate including one or more frequency offsets, each of the one or more frequency offsets corresponding to each of one or more TRPs. The example method may further include selecting at least one DMRS pattern of a plurality of DMRS patterns based on the frequency shift estimate, the at least one DMRS pattern including a plurality of DMRS symbols, the at least one DMRS pattern associated with at least one frame structure including a plurality of slots in a subframe. The example method may further include transmitting, to the UE, an indication of the at least one DMRS pattern selected based on the frequency shift estimate.

公开(公告)号：US20240019526A1

公开(公告)日：2024-01-18

申请号：US18475324

申请日：2023-09-27

Applicant: QUALCOMM Incorporated

Inventor： Sven FISCHER ,  Stephen William EDGE ,  Alexandros MANOLAKOS ,  Sony AKKARAKARAN

IPC: G01S5/02 ,  G01S5/00 ,  H04L5/00

CPC classification number: G01S5/0236 ,  G01S5/0063 ,  H04L5/0051

Abstract: Techniques are discussed herein for providing on-demand positioning reference signals (PRS) to user equipment (UE). An example method for determining a location of a user equipment according to the disclosure includes receiving a first assistance data associated with a first positioning reference signal configuration, transmitting a request to modify one or more parameters of the first positioning reference signal configuration, receiving a second assistance data associated with a second positioning reference signal configuration, wherein the second positioning reference signal configuration is based at least in part on the request to modify the one or more parameters of the first positioning reference signal configuration, obtaining measurements from one or more positioning reference signals based at least in part on the second assistance data, and determining the location based at least on part on measurements obtained from the one or more positioning reference signals.

公开(公告)号：US20240012129A1

公开(公告)日：2024-01-11

申请号：US18018535

申请日：2021-09-01

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Seyong PARK

IPC: G01S13/74 ,  H04W64/00

CPC classification number: G01S13/74 ,  H04W64/00

Abstract: Downlink and uplink Time Difference of Arrival (TDOA) is performed using Reference Signal Time Difference (RSTD) measurements. The transmissions and measurements of positioning reference signals (PRS) are configured to mitigate or eliminate network synchronization errors which conventionally limit positioning accuracy of TDOA. The synchronization errors are mitigated using inter-base station PRS, and transmission of the PRS in response to receipt of the initial reference signal. For DL TDOA, a reference base station may transmit PRS to the user equipment (UE) and neighboring base station. In response, the neighboring base station transmits PRS to the UE. The RSTD may be determined as the difference in the time of reception of the PRS signals received at the UE after removal of the total delay for transmitting the PRS by the neighboring base station, including propagation time and processing time. The RSTD for UL TDOA may be determined in a similar manner.

公开(公告)号：US20240007236A1

公开(公告)日：2024-01-04

申请号：US18255096

申请日：2022-01-31

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN

IPC: H04L5/00

CPC classification number: H04L5/0007 ,  H04L5/0048

Abstract: A shared physical channel can be used for passive radio frequency (RF) sensing of an object in a wireless communication network. Embodiments can comprise methods, devices, systems, and/or other means for receiving the shared physical channel, where the shared physical channel is received via RF signals transmitted by a transmitting device and reflected to the receiving device from the object. Data of the shared physical channel can be decoded based on a demodulation reference signal (DMRS) of the shared physical channel. Subsequent to decoding, modulation symbols used to transmit the shared physical channel and DMRS can be reconstructed. One or more RF sensing measurements of the object can be made using the reconstructed modulation symbols.

公开(公告)号：US20230422190A1

公开(公告)日：2023-12-28

申请号：US18252033

申请日：2021-12-13

Applicant: QUALCOMM Incorporated

Inventor： Mukesh KUMAR ,  Alexandros MANOLAKOS ,  Guttorm Ringstad OPSHAUG ,  Srinivas YERRAMALLI ,  Fnu SIDDHANT ,  Pulkit RAJGADIYA

IPC: H04W56/00 ,  H04W48/16

CPC classification number: H04W56/001 ,  H04W48/16

Abstract: A user equipment (UE) associated with a wireless network determines a first reference signal time difference value. The UE determines a first RSTD estimate and a first RSTD uncertainty associated with the first RSTD value, identifies a search interval for the first RSTD value, the search interval extending from a difference between the first RSTD estimate and the first RSTD uncertainty to a sum of the first RSTD estimate and the first RSTD uncertainty, receives wireless signals during the identified search interval, determines a Fast Fourier Transform (FFT) window offset for decoding a first positioning reference signal (PRS) received during the identified search interval, and determines the first RSTD value based at least in part on the determined FFT window offset.