公开(公告)号：US11297583B2

公开(公告)日：2022-04-05

申请号：US16997813

申请日：2020-08-19

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Krishna Kiran Mukkavilli

IPC: H04W56/00 ,  H04L12/26 ,  H04W24/08 ,  H04L43/0864

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：US11234104B2

公开(公告)日：2022-01-25

申请号：US16814829

申请日：2020-03-10

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Alexandros Manolakos ,  Joseph Binamira Soriaga ,  Jay Kumar Sundararajan ,  Gokul Sridharan

IPC: H04W4/029 ,  H04W72/04 ,  H04L27/26 ,  H04L5/00

Abstract: In an aspect, a UE estimates channel state(s) of channels(s) between the UE and network node(s) based on DL RS(s) for positioning that are scheduled and transmitted on DL resources from network node(s). The UE may apply TR filter(s) derived based on the estimated channel state(s) to a UL-RS for positioning. The UE may transmit the TR filtered UL-RS on UL resources which are associated with the DL resources of the DL-RS(s) and which are scheduled by the network node(s). The association between the UL resources and the DL resources may be indicated to the UE by the network node(s).

公开(公告)号：US20210143954A1

公开(公告)日：2021-05-13

申请号：US16949694

申请日：2020-11-11

Applicant: QUALCOMM INCORPORATED

Inventor： Weimin Duan ,  Huilin Xu ,  Alexandros Manolakos ,  June Namgoong ,  Muhammad Sayed Khairy Abdelghaffar

IPC: H04L5/00

Abstract: Wireless communications systems and methods related to determining a QCL for receiving a reference signal are provided. A user equipment (UE) determines a QCL configuration for receiving a reference signal during a first time period based on a transmit beam direction to be used for transmission during the first time period. The user equipment receives the reference signal using a first receive beam direction based on the QCL configuration while transmitting a first communication signal using the transmit beam direction in a common frequency band during the first time period.