公开(公告)号：US20220124653A1

公开(公告)日：2022-04-21

申请号：US17566513

申请日：2021-12-30

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Taesang YOO ,  Joseph Binamira SORIAGA ,  Tao LUO ,  Alexandros MANOLAKOS

IPC: H04W56/00 ,  H04W88/08 ,  H04L5/00 ,  H04W8/24 ,  H04W24/10

Abstract: Disclosed are techniques for determining a position of a user equipment (UE). A differential round-trip-time (RTT) based positioning procedure is proposed to determine the UE position. In this technique, the UE position is determined based on the differences of the RTTs between the UE and a plurality of base stations. The differential RTT based positioning procedure has much looser inter-gNodeB timing synchronization requirements than the OTDOA technique and also has much looser group delay requirements than traditional RTT procedures.

公开(公告)号：US20220113400A1

公开(公告)日：2022-04-14

申请号：US17450103

申请日：2021-10-06

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Seyong PARK ,  Renqiu WANG ,  Hwan Joon KWON ,  Krishna Kiran MUKKAVILLI

IPC: G01S13/87 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W56/00

Abstract: In an aspect, a radar controller determines a first transmission configuration for a reference radar signal on a first link from a first base station to a second base station, and a second transmission configuration for at least one target radar signal on at least one second link from the first base station to the second base station, the at least one target radar signal for sensing of at least one target, the first transmission configuration being different than the second transmission configuration. The radar controller transmits the first and second transmission configurations to the first and second base stations. The first base station transmits the reference radar signal and the at least one target radar signal in accordance with the respective transmission configurations.

公开(公告)号：US20220107384A1

公开(公告)日：2022-04-07

申请号：US17461397

申请日：2021-08-30

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Seyong PARK ,  Renqiu WANG ,  Hwan Joon KWON ,  Krishna Kiran MUKKAVILLI ,  Taesang YOO

IPC: G01S7/00 ,  G01S13/00

Abstract: In an aspect, a radar controller determines a radar slot format that configures transmission of a reference radar signal on a first symbol over a first link from a first base station to a second base station followed by at least one target radar signal on at least one second symbol over at least one second link from the first base station to the second base station, and transmits an indication of the radar slot format to the first base station and the second base station. The first base station transmits, and the second base station receives, the reference radar signal and the at least one target radar signal in accordance with the radar slot format.

公开(公告)号：US20220099787A1

公开(公告)日：2022-03-31

申请号：US17310518

申请日：2020-02-10

Applicant: QUALCOMM Incorporated

Inventor： Yuwei REN ,  Huilin XU ,  Alexandros MANOLAKOS

IPC: G01S5/02 ,  G01S5/06 ,  H04W74/08 ,  H04L5/00

Abstract: In some aspects, a base station may transmit, to a user equipment (UE), an instruction that triggers the UE to transmit an uplink random access channel (RACH) message, the instruction identifying a RACH preamble index corresponding to a RACH preamble to be used for the uplink RACH message; transmit, to a plurality of neighbor base stations, information that identifies the RACH preamble index; receive the uplink RACH message from the UE; receive, from the plurality of neighbor base stations, feedback that indicates respective timings with which the uplink RACH message was received by the plurality of neighbor base stations; and estimate a position of the UE based at least in part on a timing with which the uplink RACH message was received by the base station and at least two of the respective timings with which the uplink RACH message was received by the plurality of neighbor base stations.

公开(公告)号：US20220085932A1

公开(公告)日：2022-03-17

申请号：US17456552

申请日：2021-11-24

Applicant: QUALCOMM Incorporated

Inventor： Vinay JOSEPH ,  Mostafa KHOSHNEVISAN ,  Farhad MESHKATI ,  Piyush GUPTA ,  Alexandros MANOLAKOS

IPC: H04L5/00 ,  H04W72/04

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE). The apparatus receives configuration information for a sounding reference signal (SRS) transmission with one or more transmission reception points (TRPs), the configuration information assigning a comb value of greater than 4. The apparatus transmits, to the one or more TRPs, the SRS transmission using one of every N resource elements over a span of one or more resource blocks during a slot, where N is greater than 4.

公开(公告)号：US20220078815A1

公开(公告)日：2022-03-10

申请号：US17384771

申请日：2021-07-25

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Mukesh Kumar ,  Srinivas YERRAMALLI

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00

Abstract: A method of managing positioning reference signal transmission includes: instructing a transmission point to apply a muting pattern regarding transmission of a reference signal including first and second reference signal resources, where a first instance of the first reference signal resource includes one or more first resource elements across one or more first OFDM symbols within a slot, and a second instance of the second reference signal resource includes one or more second resource elements across one or more second OFDM symbols within the slot; and instructing the transmission point to transmit, unmuted, at least one of the one or more second resource elements, of at least one of the one or more second OFDM symbols, despite the muting pattern indicating to mute transmission of the at least one of the one or more second resource elements of the at least one of the one or more second OFDM symbols.

公开(公告)号：US20220069860A1

公开(公告)日：2022-03-03

申请号：US17411312

申请日：2021-08-25

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Alexandros MANOLAKOS ,  Weimin DUAN ,  Gokul SRIDHARAN ,  Jay Kumar SUNDARARAJAN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Naga BHUSHAN ,  Wanshi CHEN ,  Taesang YOO ,  Hwan Joon KWON ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H04B1/525 ,  H04W4/02 ,  H04L5/14

Abstract: A communications transceiver system that employs self-interference mitigation techniques can detect static objects by using techniques that introduce angular or Doppler diversity. This can include moving Tx and Rx antennas and/or performing beam sweeping. When processing RF sensing data from reflected RF signals, self-interference mitigation techniques can be used and compensation can be made for the movement and/or beam sweeping to allow for both self-interference mitigation and detection of static objects.

公开(公告)号：US20220066014A1

公开(公告)日：2022-03-03

申请号：US17465680

申请日：2021-09-02

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Weimin DUAN ,  Alexandros MANOLAKOS

IPC: G01S13/42 ,  G01S13/00 ,  H04W4/029

Abstract: A radar system may comprise a first wireless communications system Transmission Reception Point (TRP) configured as a transmitter for sending a transmit signal toward a target, a second wireless communications system TRP configured as a receiver for receiving an echo signal corresponding to a reflection of the transmit signal from the target, and a radar server. The first wireless communications system TRP and the second wireless communications system TRP may be part of a cellular communications system. The second wireless communications system TRP may be configured to generate one or more measurement reports containing one or more of delay, Doppler frequency, and/or angle-of-arrival information. The second wireless communications system TRP may be configured to send the one or more measurement reports to an entity within the cellular communications system.

公开(公告)号：US20220061014A1

公开(公告)日：2022-02-24

申请号：US17390921

申请日：2021-07-31

Applicant: QUALCOMM Incorporated

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

IPC: H04W64/00

Abstract: Techniques are provided for determining a position of a mobile device. An example method of reporting a probability distribution for positioning a mobile device includes obtaining positioning measurements, determining one or more probability distributions of one or more positioning metrics based on the positioning measurements, determining a parametric representation of the one or more probability distributions, and reporting the parametric representation.

公开(公告)号：US20220057474A1

公开(公告)日：2022-02-24

申请号：US17406300

申请日：2021-08-19

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Hung Dinh LY

IPC: G01S5/10 ,  H04W4/029

Abstract: Disclosed are various techniques for wireless positioning. In an aspect, the time that a user equipment (UE) spends on performing positioning reference signal (PRS) measurements is reduced, by lengthening the PRS measurement period (P) and/or by reducing the PRS symbol duration (K). These modifications may be performed by the UE or by a location management server or other network node and may be made in consideration of the UE's mobility status and other environmental or operating conditions of the UE. In an aspect, a network entity may determine P and K to be used by the UE, and may indicate, to the UE, the P and the K to be used by the UE for measuring at least one PRS. The UE may then use the P and the K for measuring at least one PRS.