公开(公告)号：US20230217418A1

公开(公告)日：2023-07-06

申请号：US18181435

申请日：2023-03-09

Applicant: QUALCOMM Incorporated

Inventor： Marwen ZORGUI ,  Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Piyush GUPTA ,  Rajat PRAKASH ,  Junyi LI ,  Xiaojie WANG ,  Mohammad Tarek FAHIM

IPC: H04W72/02 ,  H04W72/51 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W72/02 ,  H04W72/51 ,  H04L5/0051 ,  H04W24/10 ,  H04W92/18

Abstract: Disclosed are techniques for wireless communication. In an aspect, a position estimation entity (e.g., UE, gNB, LMF, etc.) identifies a pool of UEs for a SL-assisted position estimation procedure of a set of target UEs. SL SRS-Ps are communicated (e.g., transmitted and measured) between the pool of UEs (e.g., for relative SL ranging). UL SRS-Ps are communicated by at least some of the UEs in the pool of UEs. The position estimation entity obtains measurement data for both the SL SRS-P and UL-SRS-P communications. The position estimation entity determines a position estimate for each UE in the set of UEs based on the measurement information.

公开(公告)号：US20230179359A1

公开(公告)日：2023-06-08

申请号：US18006937

申请日：2021-08-18

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Alexandros MANOLAKOS ,  Mukesh KUMAR ,  Mohammad Tarek FAHIM

IPC: H04L5/00 ,  H04W72/56

CPC classification number: H04L5/0048 ,  H04L5/0094 ,  H04L5/0078 ,  H04W72/56

Abstract: A method of requesting a reference signal includes sending, from a user equipment, a first on-demand reference signal (RS) request for an RS in response to a first positioning request; obtaining, at the user equipment, a first timer value indicative of a first threshold amount of time; sending, from the user equipment, a second on-demand RS request in response to either: the first threshold amount of time passing after sending the first on-demand RS request without at least one of receiving the RS at the user equipment or decoding an RS configuration message at the user equipment or receiving, at the user equipment, a second positioning request, having a higher priority than the first positioning request, before passage of the first threshold amount of time after sending the first on-demand RS request.

公开(公告)号：US20230087450A1

公开(公告)日：2023-03-23

申请号：US17475053

申请日：2021-09-14

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Mostafa KHOSHNEVISAN ,  Marwen ZORGUI

IPC: G01S13/87 ,  H04L5/00 ,  H04W24/08

Abstract: Positioning of a user equipment (UE) is supported using reception points (RPs) that receive uplink sounding reference signals (SRS) from the UE. The RPs may measure signal strengths of received SRS that are used to determine path loss reference values that are provided to the UE for configurating subsequent SRS. The UE may report a plurality of RxTx time difference measurements with respect to a single PRS for the SRS transmitted to a plurality of RPs. The RPs may provide an Rx time for received SRS, which is used to generate a RxTx time different measurement for asymmetric round trip time (RTT) if the RP and TRP clocks are synchronized. The RPs may provide an RxRx time difference measurement for a time of reception of PRS and SRS if the RP and TRP clocks are synchronized. A location server determines a position of the UE using different positioning measurements.

公开(公告)号：US20220400463A1

公开(公告)日：2022-12-15

申请号：US17343089

申请日：2021-06-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Rajat PRAKASH ,  Marwen ZORGUI ,  Piyush GUPTA ,  Junyi LI ,  Xiaoxia ZHANG ,  Mohammad Tarek FAHIM ,  Xiaojie WANG

IPC: H04W64/00 ,  G01S5/14

Abstract: Disclosed are techniques for wireless communication. In an aspect, a position estimation entity, obtains first timing information that is associated with a first time-of-arrival (TOA) measurement of a first reference signal for positioning (RS-P) as communicated between a target user equipment (UE) and a base station with a first time basis, obtains second timing information that is associated with a second TOA measurement of a second RS-P as communicated between the target UE and a reference UE associated with a known location and having a second time basis that is different than the first time basis, determines a bias between the first time basis and the second time basis, and determines a position estimate of the target UE via a time differential of arrival (TDOA) positioning technique based at least in part upon the first timing information, the second timing information, and the bias.

公开(公告)号：US20220322055A1

公开(公告)日：2022-10-06

申请号：US17220894

申请日：2021-04-01

Applicant: QUALCOMM Incorporated

Inventor： Marwen ZORGUI ,  Srinivas YERRAMALLI ,  Rajat PRAKASH

IPC: H04W4/38

Abstract: Aspects of sensor activation or deactivation for positioning a mobile device in a wireless communication network are disclosed. These aspects include, during a positioning session between the mobile device and a location server, determining with the location server that a first trigger condition or a second trigger condition has been met regarding reporting, by the mobile device to the location server, of sensor data from one or more sensors of the mobile device, where: the first trigger condition may comprise a trigger condition for activating the reporting, and the second trigger condition may comprise a trigger condition for deactivating the reporting. Aspects further include sending, from the location server to the mobile device, a message may comprise either: instructions to activate the reporting responsive to determining the first trigger condition has been met, or instructions to deactivate the reporting responsive to determining the second trigger condition has been met.

公开(公告)号：US20220312151A1

公开(公告)日：2022-09-29

申请号：US17213994

申请日：2021-03-26

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Mohammed HIRZALLAH ,  Roohollah AMIRI ,  Marwen ZORGUI ,  Rajat PRAKASH ,  Xiaoxia ZHANG ,  Taesang YOO

IPC: H04W4/029 ,  H04W24/08 ,  G01S5/02

Abstract: In an aspect, a network component (e.g., BS, server, etc.) obtains measurement information associated with uplink signal(s) from UE(s), with the uplink signal(s) having reciprocity with one or more downlink beams of wireless node(s) (e.g., TRP, reference UE, etc.). The network component determines (e.g., generates or refines) a meausrement (e.g., RFFP-P) model based on the measurement information. The network component provides the measurement (e.g., RFFP-P) model to a target UE. The target UE receives at least one signal (e.g., PRS) on the one or more downlink beams from the wireless node(s). The target UE processes the at least one signal (e.g., predicts target UE location) based at least in part on the measurement (e.g., RFFP-P) model.

公开(公告)号：US20220200682A1

公开(公告)日：2022-06-23

申请号：US17131560

申请日：2020-12-22

Applicant: QUALCOMM Incorporated

Inventor： Mohammed HIRZALLAH ,  Arumugam CHENDAMARAI KANNAN ,  Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Vasanthan RAGHAVAN ,  Tao LUO

IPC: H04B7/06 ,  H04B7/08

Abstract: The present disclosure relates to methods and devices for wireless communication of an apparatus, e.g., a UE and/or a base station. In one aspect, the apparatus may measure a plurality of beams from a base station or a UE, the plurality of beams corresponding to a plurality of subbands of a wideband channel. The apparatus may also determine whether the plurality of beams include one or more candidate beam groups for each subband of the plurality of subbands. Additionally, the apparatus may transmit, upon determining that the plurality of beams include one or more candidate beam groups for at least one subband of the plurality of subbands, an indication of the one or more candidate beam groups for the at least one subband of the plurality of subbands.

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：US20220070028A1

公开(公告)日：2022-03-03

申请号：US17409693

申请日：2021-08-23

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Taesang YOO ,  Rajat PRAKASH

IPC: H04L25/02 ,  H04W64/00 ,  G01S3/48

Abstract: Techniques are provide for neural network based positioning of a mobile device. An example method for determining a line of sight delay, an angle of arrival, or an angle of departure value includes receiving reference signal information, determining one or more windowed channel impulse responses based on the reference signal information and one or more window functions, processing the one or more windowed channel impulse responses with a neural network, and determining an output of the neural network.

公开(公告)号：US20220030543A1

公开(公告)日：2022-01-27

申请号：US17122407

申请日：2020-12-15

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Alexandros MANOLAKOS ,  Rajat PRAKASH ,  Xiaoxia ZHANG ,  Marwen ZORGUI ,  Mukesh KUMAR

IPC: H04W64/00 ,  G01S5/02 ,  H04W24/10 ,  H04W4/029 ,  H04W8/24

Abstract: In an embodiment, a wireless node (e.g., UE or BS) receives from a network component (e.g., BS or core network component) a request for a positioning estimate of a UE associated with a specified time. The wireless node performs positioning measurements at a plurality of times, and determines (e.g., via interpolation or extrapolation) the positioning estimate associated with the specified time based on the positioning measurements. The wireless node transmits, to the network component, a report comprising the determined positioning estimate.