公开(公告)号：US20170288837A1

公开(公告)日：2017-10-05

申请号：US15475541

申请日：2017-03-31

Applicant: QUALCOMM Incorporated

Inventor： June NAMGOONG ,  Tao LUO ,  Alexandros MANOLAKOS ,  Jing JIANG ,  Yang YANG ,  Joseph Binamira SORIAGA ,  Tingfang JI

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04B7/00 ,  H04B7/0413 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0023 ,  H04L27/26

Abstract: Methods and apparatus for multiplexing reference signals for Multiple Input Multiple Output (MIMO) layers are provided. Resources for Demodulation Reference Signals (DMRS) corresponding to each of two or more data streams are assigned, wherein the resources assigned to each of the data streams are staggered in frequency and span two or more OFDM (Orthogonal Frequency Divisional Multiplexing) symbols. The DMRS is transmitted using the assigned resources.

公开(公告)号：US20250126595A1

公开(公告)日：2025-04-17

申请号：US18728532

申请日：2023-02-21

Applicant: QUALCOMM Incorporated

Inventor： Sooryanarayanan GOPALAKRISHNAN ,  Jay Kumar SUNDARARAJAN ,  Taesang YOO ,  Alexandros MANOLAKOS ,  Krishna Kiran MUKKAVILLI ,  Naga BHUSHAN

IPC: H04W64/00

Abstract: Techniques are provided herein for signaling path selection modes for positioning. An example method of signaling a path selection mode includes obtaining one or more signal measurement values for a reference signal, determining one or more propagation paths based on the one or more signal measurement values and the path selection mode, and report the one or more propagation paths and the path selection mode to a location server.

公开(公告)号：US20250125994A1

公开(公告)日：2025-04-17

申请号：US18684801

申请日：2022-09-21

Applicant: QUALCOMM Incorporated

Inventor： Ahmed ELSHAFIE ,  Wei YANG ,  Seyedkianoush HOSSEINI ,  Alexandros MANOLAKOS ,  Yi HUANG

IPC: H04L25/02 ,  H04L5/00

Abstract: A communication device receives, from another communication device, a set of transmissions over a sidelink shared channel, or over a downlink shared channel (1005). The communication device estimates a Doppler spread or a delay spread based on the received set of transmissions over the shared channel (1010). The communication device selects a reference signal configuration, from multiple reference signal configurations, based on the estimated Doppler spread or the estimated delay spread (1015). The reference signal is a DMRS, a PTRS and/or a TRS. Finally, the communication device transmits feedback indicating the selected reference signal configuration for a subsequent set of transmissions over the shared channel (1020).

公开(公告)号：US20250125913A1

公开(公告)日：2025-04-17

申请号：US18728542

申请日：2023-02-10

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Renqiu WANG

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/0453

Abstract: Techniques are provided for generating radio frequency (RF) sensing waveforms to enable receiver training in cellular based RF sensing applications. An example method of transmitting a RF sensing signal includes transmitting a first radio frequency signal utilizing a first bandwidth at a first transmit power level, transmitting a second radio frequency signal utilizing a second bandwidth at a second transmit power level, wherein the second bandwidth is larger than the first bandwidth and the second transmit power level is greater than the first transmit power level, and transmitting one or more radio frequency sensing signals utilizing the second bandwidth and the second transmit power level.

公开(公告)号：US20250113299A1

公开(公告)日：2025-04-03

申请号：US18667613

申请日：2024-05-17

Applicant: QUALCOMM Incorporated

Inventor： Jingchao BAO ,  Sony AKKARAKARAN ,  Tao LUO ,  Alexandros MANOLAKOS ,  Juan MONTOJO

IPC: H04W52/02 ,  H04W72/21 ,  H04W72/51

Abstract: A method of performing positioning operations at a user equipment includes: operating the user equipment in a discontinuous reception mode including time interleaved ON times of the discontinuous reception mode and OFF times of the discontinuous reception mode, where the time interleaved ON times defines an ON time window of the discontinuous reception mode; and determining, at the user equipment, whether to measure a portion of a positioning signal based on timing of the portion of the positioning signal relative to at least one of a first one of the ON times of the discontinuous reception mode or a first one of the OFF times of the discontinuous reception mode.

公开(公告)号：US20250096939A1

公开(公告)日：2025-03-20

申请号：US18689956

申请日：2022-10-21

Applicant: QUALCOMM INCORPORATED

Inventor： Ahmed ELSHAFIE ,  Ahmed Attia ABOTABL ,  Alexandros MANOLAKOS

IPC: H04L1/08 ,  H04W72/232 ,  H04W72/25

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a quantity of a first set of symbols for a slot. The UE may receive data in the first set of symbols and a second set of symbols in the slot, wherein the first set of symbols repeat data included in one or more symbols of the second set of symbols. Numerous other aspects are described.

公开(公告)号：US20250088967A1

公开(公告)日：2025-03-13

申请号：US18727501

申请日：2023-01-10

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Mukesh KUMAR ,  Srinivas YERRAMALLI

IPC: H04W52/02 ,  H04L5/00 ,  H04W76/28

Abstract: In an aspect, a user equipment (UE) may receive at least one discontinuous reception (DRX) configuration, wherein the at least one DRX configuration indicates at least a DRX on-time and a wake-up signal monitoring window for reception of a wake-up signal, wherein the wake-up signal is configured for use in determining whether the UE is to wake-up for sidelink positioning operations. The UE may transition from a sleep state to a wake-up state during the DRX on-time to conduct one or more sidelink positioning operations dependent on whether the wake-up signal is received during the wake-up signal monitoring window.

公开(公告)号：US20250063353A1

公开(公告)日：2025-02-20

申请号：US18721822

申请日：2023-02-07

Applicant: QUALCOMM INCORPORATED

Inventor： Ahmed ELSHAFIE ,  Alexandros MANOLAKOS ,  Hung Dinh LY

IPC: H04W12/06 ,  H04L9/32

Abstract: Methods, systems, and devices for wireless communications are described. The techniques described herein may support authentication schemes for wireless communications. A first wireless device may communicate one or more messages associated with an authentication scheme with a second wireless device. The one or more messages may indicate a capability of one or more of the devices, that the authentication scheme includes a symmetric or an asymmetric authentication scheme, or both. The first wireless device may receive a signal from the second wireless device. The signal may include a set of authentication bits. The first wireless device may determine an authenticity of the signal based on the set of authentication bits, the signal, at least one key associated with the authentication scheme, or a combination thereof. The authenticity may indicate whether the signal was sent from the second wireless device or another wireless device.

公开(公告)号：US20250056471A1

公开(公告)日：2025-02-13

申请号：US18719646

申请日：2023-01-17

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Mukesh KUMAR ,  Srinivas YERRAMALLI

IPC: H04W64/00 ,  H04B7/185

Abstract: Aspects presented herein may enable a UE to communicate with NTN base station(s) more efficiently to improve NTN positioning. In one aspect, a UE communicates with at least one TN base station via a first set of PFLs for a UE positioning session. The UE communicates with at least one NTN base station via a second set of PFLs for the UE positioning session, the second set of PFLs being different from the first set of PFLs. In another aspect, a UE measures a first RS that is transmitted from a base station via a wide beam, the wide beam having a coverage over an area. The UE measures at least one second RS that is transmitted from the base station via at least one narrow beam based on the first RS being successfully decoded, each of the at least one narrow beam covering a portion of the area.

公开(公告)号：US20250056468A1

公开(公告)日：2025-02-13

申请号：US18717815

申请日：2023-01-23

Applicant: QUALCOMM Incorporated

Inventor： Chiranjib SAHA ,  Alberto RICO ALVARINO ,  Harikumar KRISHNAMURTHY ,  Alexandros MANOLAKOS ,  Xiao Feng WANG ,  Ayan SENGUPTA

IPC: H04W64/00 ,  H04L5/00 ,  H04W16/28 ,  H04W84/06

Abstract: In some implementations, a location server may in a positioning session with a user equipment (UE): determine to provide the UE with assistance data regarding at least one NTN Next Generation Radio Access Network (NG-RAN) node; and send assistance data to the UE. The assistance data may comprise, with respect to the at least one NTN NG-RAN node: a beam footprint corresponding to one or more reference signals transmitted by the NTN NG-RAN node, a time and frequency offset corresponding to one or more reference signals transmitted by the NTN NG-RAN node, ephemeris information, polarization information, Doppler range information, or delay and Doppler information of a link between the at least one NTN NG-RAN node and a reference point, or a combination thereof.