公开(公告)号：WO2021262570A1

公开(公告)日：2021-12-30

申请号：PCT/US2021/038185

申请日：2021-06-21

Applicant: QUALCOMM INCORPORATED

Inventor： HUANG, Yi ,  HUANG, Fei ,  ZHANG, Duo ,  GULATI, Kapil ,  JI, Tingfang ,  MANOLAKOS, Alexandros ,  ZHU, Xipeng ,  COOPER, Rotem ,  SHAH, Jigneshkumar ,  BERGAN, Charles Alfred

IPC: H04W64/00 ,  G01S5/0027 ,  G01S5/0054 ,  G01S5/0215 ,  G01S5/0226 ,  H04W4/023 ,  H04W76/14 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described in which UEs in sidelink communications may perform UE-to-UE positioning and ranging estimations through exchange of one or more predefined waveforms. A first UE may transmit a first predefined waveform, which may be received at a second UE. The second UE may, responsive to detection of the first predefined waveform, transmit a second predefined waveform, which may be received at the first UE. The first UE may use a closed-loop machine-learning algorithm to estimate a position of the first UE, ranging information between the first UE and the second UE, or combinations thereof. The position/ranging information may be provided to a base station, which may fuse multiple estimates and transmit updated positioning/ranging information to the first UE, the second UE, or both.

公开(公告)号：WO2023275047A2

公开(公告)日：2023-01-05

申请号：PCT/EP2022/067724

申请日：2022-06-28

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： EBERLEIN, Ernst ,  ALAWIEH, Mohammad ,  GHIMIRE, Birendra ,  FRANKE, Norbert

IPC: H04L27/26 ,  H04L5/00 ,  H04W64/00 ,  G01S5/0205 ,  G01S5/0215 ,  H04L27/2602 ,  H04L27/26025 ,  H04L27/2613 ,  H04L5/0007 ,  H04L5/0048

Abstract: An apparatus for transmitting and/or for receiving a signal in a wireless communication system according to an embodiment is provided. The signal is a data signal or is a positioning reference signal. The apparatus is configured to transmit and/or to receive the data signal or the positioning reference signal in a frame, wherein the frame comprises a plurality of OFDM symbols, wherein each of the plurality of OFDM symbols comprises a plurality of resource elements, wherein each of the plurality of resource elements of each of the plurality of OFDM symbols is assigned to one of a plurality of subcarriers. The plurality of OFDM symbols are arranged in the frame such that the frame comprises a plurality of groups, wherein each of the plurality of groups comprises two or more consecutive OFDM symbols of the plurality of OFDM symbols of the frame. No cyclic prefix is arranged between the two or more consecutive OFDM symbols of each of the plurality of groups.

公开(公告)号：WO2022029330A1

公开(公告)日：2022-02-10

申请号：PCT/EP2021/072101

申请日：2021-08-06

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： ALAWIEH, Mohammad ,  EBERLEIN, Ernst ,  GROSSMANN, Marcus ,  GHIMIRE, Birendra ,  EIDLOTH, Andreas

IPC: H04L27/26 ,  G01S5/02 ,  G01S1/0428 ,  G01S5/0215 ,  H04L27/2613

Abstract: An apparatus for a wireless communication system is provided. The apparatus is to transmit a reference signal on a common set of resource elements (REs), the common set of resource elements being used by one or more further apparatuses in the wireless communication system, so that the reference signal of the apparatus and one or more further reference signals of the one or more further apparatuses use the same resource elements. Moreover, the apparatus is to transmit the reference signal depending on a base sequence or a sequence derived from the base sequence and depending on a set of configuration parameters.