公开(公告)号：US11350245B2

公开(公告)日：2022-05-31

申请号：US17325014

申请日：2021-05-19

Applicant: QUALCOMM Incorporated

Inventor： Guttorm Ringstad Opshaug ,  Weimin Duan ,  Alexandros Manolakos ,  Sony Akkarakaran ,  Charles Edward Wheatley

IPC: H04W4/029 ,  G01S5/02 ,  H04L27/26 ,  H04L5/00

Abstract: Techniques are provided for time-domain processing of DL-PRS signals under certain conditions in which time-domain processing has a computational advantage over frequency-domain processing. Because of this, embodiments can provide positioning at a lower computational cost than positioning provided by traditional techniques utilizing only frequency-domain processing. This reduced computational cost can improve the battery life of mobile devices, ultimately resulting in a better user experience.

公开(公告)号：US20210111775A1

公开(公告)日：2021-04-15

申请号：US17064997

申请日：2020-10-07

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Alexandros Manolakos ,  Weimin Duan ,  Peter Pui Lok Ang

IPC: H04B7/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be otherwise known as a user equipment (UE), may determine a capability relating to an antenna configuration associated with channel state information reporting. The UE may transmit a message including an indication of the capability, and receive a channel state information reference signal using the antenna configuration. The UE may transmit, based on the channel state information reference signal, a channel state information report in accordance with the antenna configuration associated with the channel state information reporting.

公开(公告)号：US12298416B2

公开(公告)日：2025-05-13

申请号：US18441870

申请日：2024-02-14

Applicant: QUALCOMM Incorporated

Inventor： Jingchao Bao ,  Sony Akkarakaran ,  Weimin Duan

IPC: G01S5/00 ,  G01S5/02 ,  H04L5/00 ,  H04W24/10

Abstract: Disclosed are techniques for communication. In an aspect, a UE reports a combination pattern for a combined measurement associated with samples across PRS occasions of a PRS measurement procedure. In another aspect, a UE reports a combined calibration error of a combined measurement associated with samples across PRS occasions of a PRS measurement procedure. The reported combination pattern and/or combined calibration error may be used by a position estimation entity for derivation of a position estimate of the UE.

公开(公告)号：US12228666B2

公开(公告)日：2025-02-18

申请号：US17858573

申请日：2022-07-06

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  June Namgoong ,  Hyojin Lee

IPC: G01S5/02

Abstract: Radio frequency (RF) sensing by a sensing entity with an oscillator that introduces frequency errors is supported using dual direction bistatic sensing. The sensing entity transmits a sensing signal that is reflected by an object and received by a second sensing entity, which measures a first frequency offset that includes an oscillator error from the transmission of the sensing signal and a Doppler shift from the object. The sensing entity also receives and measures a second frequency offset of a sensing signal transmitted by the second sensing entity and reflected by the object, which includes a second frequency offset that includes an oscillator error from the reception of the sensing signal and a Doppler shift from the target object. The velocity of the object may be estimated based on a combination of the first and second frequency offsets, which cancels the oscillator error caused by the sensing entity.

公开(公告)号：US12219493B2

公开(公告)日：2025-02-04

申请号：US18299315

申请日：2023-04-12

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Muhammad Sayed Khairy Abdelghaffar ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli ,  Runxin Wang

IPC: H04W52/02 ,  H04B7/0404 ,  H04L5/00 ,  H04W72/044 ,  H04W72/21 ,  H04W72/51

Abstract: This disclosure provides methods, devices and systems for channel sounding for wireless communications. Some implementations more specifically relate to scheduling sounding reference signal (SRS) resource sets for wireless devices having more than 4 receive (RX) antenna ports. In some implementations, a base station may determine an antenna switching capability of a user equipment (UE). The antenna switching capability indicates a number of RX antenna ports of the UE. The base station schedules a number of SRS resource sets for the UE based at least in part on the number of RX antenna ports in excess of four. For example, the number of RX antenna ports may be equal to 8. As another example, the number of RX antenna ports may be equal to 6. The base station further receives, from the UE, uplink transmissions of one or more SRS resources for each of the scheduled SRS resource sets.

公开(公告)号：US12218721B2

公开(公告)日：2025-02-04

申请号：US18020248

申请日：2020-08-07

Applicant: QUALCOMM Incorporated

Inventor： Runxin Wang ,  Muhammad Sayed Khairy Abdelghaffar ,  Yu Zhang ,  Weimin Duan

IPC: H04B7/06 ,  H04B7/0404 ,  H04L5/00

Abstract: A method of wireless communication, by a user equipment (UE) supporting a four transmitter/six receiver (4T6R) antenna configuration, reports a sounding reference signal (SRS) switching capability. The method receives an SRS antenna switching configuration, and performs SRS antenna switching while transmitting multiple SRSs via SRS resources with multiple transmitters for different antenna ports, in accordance with the SRS antenna switching configuration. At least one of the different antenna ports may use at least two of the SRS resources. A quantity of the different antenna ports assigned to each SRS resource may be different for the SRS antenna switching. The UE may sound the different antenna ports an equal number of times, and at least one of the different antenna ports may use at least two of the SRS resources for the SRS antenna switching.

公开(公告)号：US12216221B2

公开(公告)日：2025-02-04

申请号：US17688732

申请日：2022-03-07

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Gokul Sridharan ,  Wanshi Chen

IPC: G01S5/00 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/51

Abstract: During positioning of a user equipment (UE), (DL) positioning reference signals (PRS) transmitted by one or more transmission reception point (TRP) in a wireless communication system may be preempted or punctured by higher priority transmissions, such as ultra-reliable low-latency traffic (URLLC). A PRS preemption indication (PI) may be provided to a UE identifying one or more TRPs affected by preemption. The PRS PI may further identify the time domain and frequency domain of the preempted DL PRS transmissions. The PRS PI may identify the time domain, e.g., based on a number of PRS symbols between two monitoring occasions, wherein only PRS symbols that contain positioning reference signals associated with the group of TRPs are counted. The PRS PI may identify the frequency domain by identifying at least one of four or more frequency sub-bands of the preempted DL PRS transmissions.

公开(公告)号：US12204042B2

公开(公告)日：2025-01-21

申请号：US17195097

申请日：2021-03-08

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Seyong Park ,  Weimin Duan ,  Xiaoxin Zhang

IPC: G01S7/00 ,  G01S7/02 ,  H04W8/24

Abstract: A communication device includes a processor configured to: transfer, via a transceiver, a wireless data signal within a communication frequency range; determine a capability of the communication device to measure a wireless radar signal received via the transceiver, the wireless radar signal having a frequency within the communication frequency range; transmit, via the transceiver to a network entity, a first indication of the capability of the communication device to measure the wireless radar signal, the first indication being indicative of a transmit power level of the wireless radar signal from a source of the wireless radar signal or a received power level of the wireless radar signal at the communication device; receive, via the transceiver, the wireless radar signal; determine a positioning measurement of the wireless radar signal; and transmit a second indication of the positioning measurement via the transceiver to the network entity.

公开(公告)号：US12047889B2

公开(公告)日：2024-07-23

申请号：US17649514

申请日：2022-01-31

Applicant: QUALCOMM Incorporated

Inventor： Lianghai Ji ,  Huilin Xu ,  Liangping Ma ,  Qiang Wu ,  Jun Ma ,  Mehmet Izzet Gurelli ,  Weimin Duan ,  Karthik Anantha Swamy

IPC: H04W56/00 ,  H04B7/185 ,  H04W74/0833 ,  H04W84/06

CPC classification number: H04W56/001 ,  H04B7/18589 ,  H04W74/0841 ,  H04W84/06

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus at a UE in NTN are provided. An example method at a UE may include obtaining an indication of a subset of one or more SSB beams included in a set of SSB beams. The example method may further include outputting for transmission or obtaining a communication independent of using any resources associated with SSB transmission via the subset of one or more SSB beams.

公开(公告)号：US12025722B2

公开(公告)日：2024-07-02

申请号：US17640651

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Gokul Sridharan ,  Wanshi Chen

IPC: G01S5/00 ,  G01S5/02 ,  H04L5/00 ,  H04W24/08

CPC classification number: G01S5/0063 ,  G01S5/0236 ,  H04L5/0051 ,  H04W24/08

Abstract: During positioning of a user equipment (UE), downlink (DL) positioning reference signals (PRS) transmitted by one or more transmission reception point (TRP) in a wireless communication system may be preempted or punctured by higher priority transmissions, such as ultra-reliable low-latency traffic (URLLC). A PRS preemption indication (PI) may be provided to a UE by a serving TRP identifying one or more TRPs affected by preemption. The PRS PI may further identify the time domain and frequency domain of the preempted DL PRS transmissions. The PRS PI may identify the time domain, e.g., based on a number of PRS symbols between two monitoring occasions, wherein only PRS symbols that contain downlink positioning reference signals associated with the group of TRPs are counted. The PRS PI may identify the frequency domain by identifying at least one of four or more frequency sub-bands of the preempted DL PRS transmissions.