公开(公告)号：US20220322277A1

公开(公告)日：2022-10-06

申请号：US17218418

申请日：2021-03-31

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Hung Dinh Ly

IPC: H04W64/00 ,  H04B17/27 ,  H04B17/318 ,  H04B17/336

Abstract: Wireless positioning accuracy of a user equipment (UE) is impacted by locations of the transmit/receive points (TRPs) and UE for wireless positioning. To improve the accuracy of estimated locations, a geometric dilution of precision (GDOP) may be determined for different groups of candidate TRPs, with the GDOP indicating a potential positioning error associated with the group of candidate TRPs. A UE may determine GDOPs for different combinations of candidate TRPs. One or more devices of a wireless network (e.g., a location server and/or a UE for positioning) may select or exclude one or more candidate TRPs from being used for wireless positioning of a UE based on the determined GDOPs. Exclusion or selection of candidate TRPs for wireless positioning may also be based on quality measurements of PRSs (such as an RSRP or SNR) or a time duration associated with measuring the PRSs from the candidate TRPs to be selected.

公开(公告)号：US20220283262A1

公开(公告)日：2022-09-08

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 ,  H04W8/24 ,  G01S7/02

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：US20220077981A1

公开(公告)日：2022-03-10

申请号：US17405862

申请日：2021-08-18

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Seyong PARK

IPC: H04L5/00 ,  H04W4/029 ,  G01S5/10

Abstract: In an aspect, a first BS measures a SRS-P associated with a RTT measurement procedure between a UE and a second base station, and reports measurement information based on the measurement of the SRS-P. In another aspect, a device (e.g., UE, BS, LMF, etc.) obtains the measurement information along with measurement information based on measurements at the UE and the second base station, and determines a positioning estimate of the UE based on the first, second and third measurement information.

公开(公告)号：US20220069962A1

公开(公告)日：2022-03-03

申请号：US17410487

申请日：2021-08-24

Applicant: QUALCOMM Incorporated

Inventor： Jingchao BAO ,  Weimin DUAN ,  Sony AKKARAKARAN

IPC: H04L5/00 ,  H04W64/00 ,  H04W72/04 ,  G01S5/02

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) performs one or more time-based measurements of one or more first positioning reference signal (PRS) occasions transmitted by a first transmission-reception point (TRP), the one or more first PRS occasions having a first bandwidth, receives an indication to switch from measuring PRS occasions from the first TRP in the first bandwidth to measuring PRS occasions from the first TRP in a second bandwidth, and performs one or more angle-only measurements of one or more second PRS occasions transmitted by the first TRP, the one or more second PRS occasions having the second bandwidth.

公开(公告)号：US20220018925A1

公开(公告)日：2022-01-20

申请号：US17376873

申请日：2021-07-15

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Tingfang JI

IPC: G01S5/02 ,  H04W64/00 ,  G01S5/08 ,  G01S19/01

Abstract: Disclosed are techniques for wireless communication. In an aspect, a network entity determines a location of a target base station and a location of at least one reference device, determines an angle-of-arrival (AoA) measurement of one or more reference signals received by at least one antenna array of the target base station from the at least one reference device, determines an expected AoA between the at least one antenna array and the at least one reference device based on the location of the target base station and the location of the at least one reference device, and determines an orientation offset of the at least one antenna array based on a difference between the expected AoA and the AoA measurement.

公开(公告)号：US20210352605A1

公开(公告)日：2021-11-11

申请号：US17245422

申请日：2021-04-30

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Sony AKKARAKARAN

IPC: H04W56/00 ,  H04W24/10

Abstract: In an aspect, a communications node (e.g., TRP or UE) obtains (e.g., measures) timing group delays associated with different positioning procedures to determine time drift information, and reports the time drift information to an external entity for position estimation.

公开(公告)号：US20210282100A1

公开(公告)日：2021-09-09

申请号：US16997813

申请日：2020-08-19

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Krishna Kiran MUKKAVILLI

IPC: H04W56/00 ,  H04W24/08 ,  H04L12/26

Abstract: Techniques are provided for calibrating group delay for a low-tier UE by leveraging the relatively high accuracy of RTT positioning for a premium UE. This can enable online/in-field group delay calibration of low-tier UEs, allowing for low-tier UEs to be calibrated when needed. Depending on desired functionality, techniques for calibration may include the use of RTT measurements with a base station, or an RTT measurement between the low-tier UE and the premium UE.

公开(公告)号：US20210105785A1

公开(公告)日：2021-04-08

申请号：US17035093

申请日：2020-09-28

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Weimin DUAN ,  Pavan Kumar VITTHALADEVUNI ,  Krishna Kiran MUKKAVILLI

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04 ,  H04J13/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) that includes an indication of a null resource element pattern. The null resource element pattern may be indicated in the DCI using: a value of an antenna port field that also indicates one or more demodulation reference signal (DMRS) ports for the UE and a number of DMRS code-division multiplexing groups without data, or one or more zero power downlink reference signals. The UE may perform one or more demodulation interference measurements based at least in part on the null resource element pattern. The UE may demodulate a downlink communication based at least in part on performing the one or more demodulation interference measurements. Numerous other aspects are provided.

公开(公告)号：US20210105116A1

公开(公告)日：2021-04-08

申请号：US17024118

申请日：2020-09-17

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Pavan Kumar VITTHALADEVUNI ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for fast adaptation of transmission properties of sounding reference signal (SRS) resource sets. A method that may be performed by a user equipment (UE) includes receiving sounding reference signal (SRS) configuration information, configuring the UE with one or more SRS resource sets, wherein each of the one or more SRS resource sets comprises one or more SRS resources; receiving signaling comprising a field indicating which of the one or more SRS resources in the one or more SRS resource sets are active and which of the one or more SRS resources in the one or more SRS resources sets are inactive; and transmitting one or more SRSs using only the one or more SRS resources that are active.

公开(公告)号：US20250119844A1

公开(公告)日：2025-04-10

申请号：US18480797

申请日：2023-10-04

Applicant: QUALCOMM Incorporated

Inventor： Kangqi LIU ,  Weimin DUAN

IPC: H04W52/36

Abstract: Disclosed are techniques for sensing. In an aspect, a sensing management component transmits an on-demand request for a power boost to one or more sensing nodes associated with one or more radio frequency for sensing (RF-S) operations. In a further aspect, a transmission power associated with sensing is adjusted via a power ramping scheme.