公开(公告)号：US20210336666A1

公开(公告)日：2021-10-28

申请号：US16857488

申请日：2020-04-24

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Michael Levitsky ,  Guy Wolf ,  Sharon Levy

IPC: H04B7/0456 ,  H04L5/10 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0417

Abstract: In one aspect, a method of wireless communication includes generating, by a user equipment (UE), a delta precoding value for a precoding matrix update, the delta precoding value relative to a previous precoding matrix. The method also includes generating, by the UE, a delta power loading value for the precoding matrix update, the delta power loading value relative to the previous precoding matrix. The method further includes transmitting, by the UE, a transmission indicating the delta precoding value and the delta power loading value. Other aspects and features are also claimed and described.

公开(公告)号：US20210242989A1

公开(公告)日：2021-08-05

申请号：US16777667

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Assaf Touboul ,  Ran Berliner ,  Gideon Shlomo Kutz ,  Shay Landis

IPC: H04L5/00 ,  H04L1/00

Abstract: Wireless communication techniques that utilize a general purpose (GP) reference signal for non-coherent millimeter-wave communication are discussed. The GP reference signal may have a special structure allowing it to be flexibly used by a mobile device for multiple purposes. A base station may determine a repetition factor for a repetitive intra-symbol GP reference signal mapping based on an event that triggered transmission of the GP reference signal. The base station may also map the GP reference signal to resource elements of a symbol based, at least in part, on the determined repetition factor of the repetitive intra-symbol GP reference signal mapping. The base station may also transmit the mapped GP reference signal. A mobile device may receive the GP reference signal and modify at least one parameter of a plurality of parameters based, at least in part, on processing of the GP reference signal.

公开(公告)号：US20200186232A1

公开(公告)日：2020-06-11

申请号：US16703552

申请日：2019-12-04

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Ran Berliner ,  Ori Auslender ,  Ruhua He ,  Ran Iron

IPC: H04B7/08 ,  H04B7/06 ,  H04W24/10 ,  H04W16/28 ,  H04B7/01

Abstract: Methods, systems, and devices for wireless communications are described that provide for adjustment of a frequency offset based on switching between uplink/downlink (UL/DL) transmission/reception beam pairs between a UE and a base station. A connection may be established via a first UL/DL transmission/reception beam pair and a frequency tracking loop may be established and maintained to correct for frequency error (e.g., due to Doppler shift) of received transmissions at a receiving device. In cases where a beam switch is performed, and the UE and base station switch from the first UL/DL transmission/reception beam pair to a second UL/DL transmission/reception beam pair, and a frequency offset difference between the first and second UL/DL transmission/reception beam pairs may be applied to the frequency tracking loop. The frequency offset difference may be obtained from a table of frequency offset measurements of multiple UL/DL beam pairs using associated reference signal transmissions.

公开(公告)号：US20180269947A1

公开(公告)日：2018-09-20

申请号：US15875443

申请日：2018-01-19

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Ran Berliner

IPC: H04B7/06 ,  H04L25/02 ,  H04L5/00

CPC classification number: H04B7/0617 ,  H04B7/0626 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/005 ,  H04L25/0224

Abstract: Techniques for synchronized reception beam refinement are described herein. A base station may indicate to a user equipment (UE) a time when a reception beam refinement event may occur. The UE may initiate a synchronized reception beam refinement procedure based on receiving the indication from the base station. The UE may identify a new reception beam configuration based on data stored locally by the UE and ongoing background calculations that the UE carries out based on periodic beam reference signals. At the time indicated, the UE may adjust the reception beam configuration of a reception beam. The base station may initiate one or more link maintenance procedures based on a reception beam refinement event occurring. Such techniques may reduce the loss of data due to link degradation related to channel state feedback inconsistency (CSF) after a reception beam refinement event.

公开(公告)号：US12237952B1

公开(公告)日：2025-02-25

申请号：US18456395

申请日：2023-08-25

Applicant: QUALCOMM Incorporated

Inventor： Daniel Paz ,  Michael Levitsky ,  Tom Barak

IPC: H04L25/03 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a user equipment (UE) to perform receiver-side noise statistics (Rnn) estimation and for an extended reality (XR) device to perform log likelihood ratio (LLR) scaling estimation. For example, the UE may transmit a first set of reference signals to the XR device. The XR device may sample the reference signals and transmit an indication of quantized samples such that the UE may perform Rnn estimations and generate a pre-equalization matrix. The UE may transmit a set of pre-equalized reference signals to the XR device such that the XR device may estimate LLR scaling coefficients. In some examples, the UE may determine the pre-equalization matrix by performing a filtering of reference signal measurements. The UE may apply whitening to account for momentary interference, and may indicate a whitening matrix to the XR device.

公开(公告)号：US12166702B2

公开(公告)日：2024-12-10

申请号：US17448851

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Daniel Paz ,  Michael Levitsky

IPC: H04W24/08 ,  H04L1/00 ,  H04L5/00 ,  H04L43/0805

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication associated with phase noise characteristics of the UE. The UE may receive an indication of pilot allocation sizes, for different data modulation and coding schemes (MCSs) for communications, of frequency-domain contiguous pilots for phase noise mitigation based at least in part on the indication associated with the phase noise characteristics of the UE. Numerous other aspects are described.

公开(公告)号：US12107789B2

公开(公告)日：2024-10-01

申请号：US17651400

申请日：2022-02-16

Applicant: QUALCOMM Incorporated

Inventor： Alexander Sverdlov ,  Michael Levitsky ,  Assaf Touboul ,  Gideon Shlomo Kutz ,  Guy Wolf ,  Shay Landis

IPC: H04L5/00 ,  H04W72/23

CPC classification number: H04L5/0048 ,  H04W72/23

Abstract: A base station may configure a user equipment (UE) with a subset of reference signal (RS) configurations among a set of RS configurations, and transmit a plurality of RSs based on the subset of RS configurations. The RS may be a demodulation RS (DMRS). The plurality of RSs may be configured to span each of the plurality of resource elements (REs) in the active bandwidth part (BWP). The UE may receive the plurality of RSs based on the subset of RS configurations and perform a spur detection based on the plurality of RSs received based on the subset of RS configurations. Each RS configuration of the set of RS configurations may be associated with at least one of the subset of RS configurations that is associated with the plurality of RSs spanning each of the plurality of REs in the active BWP.

公开(公告)号：US12063687B2

公开(公告)日：2024-08-13

申请号：US17103837

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Lior Uziel ,  Michael Levitsky ,  Gideon Kutz ,  Assaf Touboul ,  Shay Landis ,  Cheol Hee Park ,  Ralph Akram Gholmieh ,  Chu-Hsiang Huang

IPC: H04W74/0808 ,  H04L1/1812 ,  H04W4/40

CPC classification number: H04W74/0825 ,  H04L1/1812 ,  H04W4/40

Abstract: A method includes cellular vehicle-to-everything (CV2X) allocation collision detection and reporting. An allocation collision detection module detects control channel allocations from transmitting user equipments (UEs) in each time period of a group of time periods. A quantity of detected control channel allocations is determined in each time period. A report is then built and transmitted to at least one of the transmitting UEs. The report indicates collisions in each time period, based on the quantity and a location of the detected control channels in each time period, as well as based on a type of UE interface.

公开(公告)号：US12063096B2

公开(公告)日：2024-08-13

申请号：US18050162

申请日：2022-10-27

Applicant: QUALCOMM Incorporated

Inventor： David Yunusov ,  Michael Levitsky ,  Assaf Touboul

IPC: H04B7/0413 ,  H04B7/155

CPC classification number: H04B7/15528 ,  H04B7/0413

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a repeater may receive, via a first frequency band, a first one or more signals of a communication that is associated with a multiple hop link, wherein the first one or more signals are associated with a first one or more communication parameters that result in a data capacity for the first one or more signals. The repeater may perform an action to adjust the first one or more communication parameters to a second one or more communication parameters for transmission via a second frequency band, the second one or more communication parameters causing the data capacity to be maintained. The repeater may transmit, via the second frequency band, a second one or more signals of the communication using the second one or more communication parameters. Numerous other aspects are described.

公开(公告)号：US12047874B2

公开(公告)日：2024-07-23

申请号：US17239341

申请日：2021-04-23

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Michael Levitsky ,  Daniel Paz ,  Shay Landis ,  Assaf Touboul

IPC: H04W72/12 ,  H04L27/26 ,  H04W52/02

CPC classification number: H04W52/0209 ,  H04L27/2649 ,  H04W72/12

Abstract: A method of wireless communication by a user equipment (UE) includes reporting, to a base station, a requested downlink code block mapping, which has a defined duration. The method also includes receiving a first code block from the base station during the defined period of time. The method further includes receiving a second code block from the base station during the period of time. The method further includes decoding the first code block with a first demodulator according to the code block mapping. The method still further includes decoding the second code block with a second demodulator, which is different from the first demodulator, according to the code block mapping.