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.

公开(公告)号：US20220015051A1

公开(公告)日：2022-01-13

申请号：US17348553

申请日：2021-06-15

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Krishna Kiran MUKKAVILLI

IPC: H04W56/00 ,  H04W64/00 ,  H04W4/029 ,  H04B17/318

Abstract: In an aspect, a communications node selects a reference device for a positioning procedure based on hardware group capabilities associated with reference devices involved in the positioning procedure (e.g., RTT, differential RTT, double differential RTT, TDOA, etc.). In another aspect, a distance between reference devices is estimated based on timing measurements of reference signal(s) for positioning. A hardware group delay associated with the reference devices is estimated based on (i) the estimated distance between the first and second reference devices, and (ii) a known distance between the first and second reference devices.

公开(公告)号：US20210368471A1

公开(公告)日：2021-11-25

申请号：US17178013

申请日：2021-02-17

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Wanshi CHEN

IPC: H04W64/00 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04B7/06

Abstract: Techniques for communication by a user equipment (UE) are disclosed. Techniques can include determining a positioning state information (PSI) report to transmit, where the PSI report comprises positioning-related information, and selecting a physical uplink control channel (PUCCH) resource with which to transmit the PSI report, where the selected PUCCH resource comprises a number of resource blocks (RBS). Techniques can further include determining whether to transmit the PSI report using the selected PUCCH resource, based on: the number of RBS, a size of uplink control information (UCI) to be transmitted using the selected PUCCH resource, the selected PUCCH resource being configured with a capability to include both the PSI report and a hybrid automatic repeat request acknowledgment (HARQ-ACK), or the selected PUCCH resource being configured to include only one or more PSI reports, and optionally one or more CSI reports, as a payload, or any combination thereof.

公开(公告)号：US20210360461A1

公开(公告)日：2021-11-18

申请号：US17317718

申请日：2021-05-11

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Tingfang JI ,  Wanshi CHEN

IPC: H04W24/10 ,  H04L5/00 ,  H04W80/02 ,  H04W72/04

Abstract: Disclosed are techniques for reducing the overhead of low layer positioning reports. In an aspect, a user equipment (UE) performs at least one positioning measurement of at least one downlink positioning reference signal (DL-PRS) received from at least one transmission-reception point (TRP) during a positioning session, and reports, to a positioning entity via low layer signaling, a relative value of the at least one positioning measurement relative to an expected value of the at least one positioning measurement, wherein the relative value of the at least one positioning measurement is a difference between the expected value of the at least one positioning measurement and a measured value of the at least one positioning measurement.

公开(公告)号：US20210242913A1

公开(公告)日：2021-08-05

申请号：US16996321

申请日：2020-08-18

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Krishna Kiran MUKKAVILLI

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0426 ,  H04W72/04

Abstract: A user equipment (UE) receives a maximum downlink (DL) Multiple-Input Multiple-Output (MIMO) layer configuration for DL communications, such as control signals or data signals, in one or more bandwidth parts (BWPs) and a positioning reference signal (PRS) configuration for receiving DL PRS. The UE receives DL PRS in an active BWP using a number of reception antennas based on, e.g., at least equal to, the maximum number of DL MIMO layers in the active bandwidth part. The UE may be configured to transmit uplink (UL) PRS, e.g., SRS for positioning purposes, using at least a maximum number of transmission antennas that is configured for communications purposes.

公开(公告)号：US20210112498A1

公开(公告)日：2021-04-15

申请号：US17066115

申请日：2020-10-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0404

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：US20210105117A1

公开(公告)日：2021-04-08

申请号：US17033656

申请日：2020-09-25

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04

Abstract: An apparatus for wireless communication transmits a demodulation reference signal (DMRS) for at least eight orthogonal DMRS ports in a single symbol of at least one slot. The apparatus also transmits data in the at least one slot. The apparatus may correspond to a base station transmitting DMRS and downlink data. The apparatus may correspond to a user equipment (UE) transmitting DMRS and uplink data. The apparatus may bundle the DMRS across multiple slots with a bundled DMRS including a first set of the DMRS ports in a first single symbol of a first slot and a second set of the DMRS ports in a second single symbol of a second slot. The apparatus may transmit the DMRS in only a single slot in a physical resource block group (PRG) including two or more resource blocks using four frequency domain orthogonal cover codes (FD-OCC) and a frequency offset pattern.