公开(公告)号：US12244443B2

公开(公告)日：2025-03-04

申请号：US18338059

申请日：2023-06-20

Applicant: QUALCOMM Incorporated

Inventor： Daniel Paz ,  Michael Levitsky ,  Tom Barak ,  Assaf Touboul ,  Alexander Sverdlov

IPC: H04L27/01 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically relate to discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) waveform pre-equalization for MIMO communications. A receiver device, such as an extended reality (XR) device, may be configured to offload a portion of data processing to a companion device, such as a user equipment (UE). In some aspects, the UE may generate a DFT-S-OFDM waveform and may apply a pre-equalization to the DFT-S-OFDM waveform. Applying the pre-equalization to the DFT-S-OFDM waveform may include applying a minimum mean square error (MMSE) pre-equalization to the DFT-S-OFDM waveform. The receiver device may receive the pre-equalized DFT-S-OFDM waveform from the UE and may process the pre-equalized DFT-S-OFDM waveform. For example, the receiver device may decode the pre-equalized DFT-S-OFDM waveform without performing fast Fourier transform (FFT) or inverse discrete Fourier transform (IDFT) operations.

公开(公告)号：US12224857B2

公开(公告)日：2025-02-11

申请号：US17748579

申请日：2022-05-19

Applicant: QUALCOMM Incorporated

Inventor： Peer Berger ,  Shay Landis ,  Assaf Touboul

IPC: H04L1/00 ,  H03M13/15 ,  H03M13/25

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an indication to a network entity that the UE is capable of decoding Reed-Solomon codes and that the UE is capable of performing near maximal likelihood demodulation. The network entity may transmit a message indicating that a Reed-Solomon code is applied to one or more scheduled signals based at least in part on the indication. The network entity may apply Reed-Solomon coding to a signal of the one or more scheduled signals based at least in part on the message. The UE may apply near maximal likelihood demodulation and Reed-Solomon decoding to a received signal of the one or more scheduled signals based at least in part on the message.

公开(公告)号：US12218868B2

公开(公告)日：2025-02-04

申请号：US17308745

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Daniel Paz ,  Assaf Touboul ,  Michael Levitsky ,  Ory Eger ,  Shay Landis ,  Idan Michael Horn ,  Gideon Shlomo Kutz ,  Amit Bar-Or Tillinger

IPC: H04L5/00 ,  H04L1/1607 ,  H04L25/03 ,  H04L27/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit an indication of a capability of the UE to communicate one or more of uplink transmissions or downlink transmissions having amplitude-modulated phase tracking reference signals on at least a first layer of a multilayered communication link that includes the first layer and a second layer; and communicate an uplink transmission or a downlink transmission based at least in part on the indication. Numerous other aspects are provided.

公开(公告)号：US12177800B2

公开(公告)日：2024-12-24

申请号：US17851410

申请日：2022-06-28

Applicant: QUALCOMM Incorporated

Inventor： Gideon Shlomo Kutz ,  Amit Bar-Or Tillinger ,  Oren Matsrafi ,  Assaf Touboul

IPC: H04W4/00 ,  H04L27/26 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may receive a control signal allocating downlink resources and uplink resources, where the uplink resources puncture the downlink resources and are allocated for transmitting feedback control information. The UE may generate an uplink signal containing the feedback control information and one or more cancelation tones for canceling interference between a downlink signal and the uplink signal in accordance with a timing advance value. Additionally, or alternatively, the UE may generate an uplink signal including the feedback control information, where the uplink signal contains uplink symbols and cyclic extensions appended to the uplink symbols, and the cyclic extensions may be based on the timing advance value. The UE may transmit, while receiving downlink data on the downlink resources, the uplink signal including the feedback control information using the set of uplink resources.

公开(公告)号：US12132600B2

公开(公告)日：2024-10-29

申请号：US17707845

申请日：2022-03-29

Applicant: QUALCOMM Incorporated

Inventor： Amit Bar-Or Tillinger ,  Assaf Touboul ,  Shay Landis ,  Idan Michael Horn ,  Michael Levitsky ,  Daniel Paz

IPC: H04L27/36 ,  H04L27/34 ,  H04L27/38

CPC classification number: H04L27/36 ,  H04L27/3405 ,  H04L27/38

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for determining a constellation configuration for an amplitude phase shift keying (APSK) modulation scheme. The constellation configuration may be based on communication impairment information that is indicative of at least one communication impairment expected to impair a single-carrier waveform communication. Examples of communication impairments may include additive white gaussian noise (AWGN), phase noise, non-linear distortion, or any combination thereof, among other examples. Examples of a constellation configuration may include a quantity of rings in a constellation pattern associated with the APSK modulation scheme, a quantity of constellation points associated the rings, a ring radius associated with one or more rings, a phase offset to one or more rings, and a mapping of data bits to one or more constellation points, among other examples.

公开(公告)号：US12069594B2

公开(公告)日：2024-08-20

申请号：US17453800

申请日：2021-11-05

Applicant: QUALCOMM Incorporated

Inventor： Yaron Laufer ,  Gideon Shlomo Kutz ,  Assaf Touboul ,  Tal Oved ,  Elad Meir

IPC: H04W52/52 ,  H04W24/08

CPC classification number: H04W52/52 ,  H04W24/08

Abstract: Certain aspects of the present disclosure provide techniques for envelope tracking schemes for a node in a wireless communication network. One aspect provides a method for wireless communication by a transmitter device. The method generally includes: combining envelopes associated with subbands of an input signal to be amplified for transmission based on a combination function; amplifying, via an amplifier, the input signal to generate a transmission signal, the input signal being amplified based on a combined envelope signal, representing the combination of the envelopes, received at a supply input of the amplifier; and transmitting the transmission signal to a receiver device.

公开(公告)号：US12047325B2

公开(公告)日：2024-07-23

申请号：US17453323

申请日：2021-11-02

Applicant: QUALCOMM Incorporated

Inventor： Daniel Paz ,  Michael Levitsky ,  Assaf Touboul

IPC: H04L5/00 ,  H04L1/1812 ,  H04W72/21

CPC classification number: H04L5/0055 ,  H04L1/1812 ,  H04W72/21

Abstract: Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE receives, from a network entity, signaling dynamically enabling a code block group (CBG) configuration. The UE processes downlink (DL) transport blocks (TBs) including a number of CBGs, in accordance with the CBG configuration. The UE transmits, to the network entity, CBG-level acknowledgment information indicating results of the processing.

公开(公告)号：US11997185B2

公开(公告)日：2024-05-28

申请号：US17356108

申请日：2021-06-23

Applicant: QUALCOMM Incorporated

Inventor： Peer Berger ,  Shay Landis ,  Jacob Pick ,  Assaf Touboul

IPC: H04L7/04 ,  H04L27/26 ,  H04W72/21

CPC classification number: H04L7/042 ,  H04L27/2649 ,  H04L27/2657 ,  H04W72/21

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit an indication of a demodulator configuration to a user equipment (UE) for the UE to use that demodulator configuration for demodulating a multi-layer transmission from the base station. The base station may determine the demodulator configuration for the UE to use based on one or more uplink signals transmitted from the UE. Additionally, the UE may transmit an indication of demodulator capabilities that the UE supports to the base station, where the base station determines the demodulator configuration based on the indication of the demodulator capabilities. In some examples, the demodulator configuration may indicate a demodulation search space corresponding to a number of layers included per layer group of the multi-layer transmission, may correspond to an amount of cross correlation determined between respective layers of the multi-layer transmission, or a combination thereof.

公开(公告)号：US11997034B2

公开(公告)日：2024-05-28

申请号：US17319536

申请日：2021-05-13

Applicant: QUALCOMM Incorporated

Inventor： Gideon Shlomo Kutz ,  Assaf Touboul ,  Ronen Shaked ,  Elad Meir ,  Amit Bar-Or Tillinger ,  Yaniv Eistein ,  Michael Levitsky ,  Shay Landis ,  Tal Oved

IPC: H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04L5/0048 ,  H04L25/0224 ,  H04L25/03866 ,  H04W72/21 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may select a scrambling sequence to use per symbol to reduce variance in a non-linearity parameter for a power amplifier (PA) output between a data symbol and a pilot symbol based on a PA model for at least one pilot symbol or one or more parameters of the model. The receiving device may indicate a capability to blindly estimate the scrambling sequence the transmitting device selected to the transmitting device. If the transmitting device does not receive the capability message from the receiving device or if the capability message indicates the receiving device is not capable of blind estimation, the transmitting device may indicate the selected scrambling sequence to the receiving device. Otherwise, the transmitting device may not indicate the selected scrambling sequence to the receiving device, and the receiving device may blindly estimate the scrambling sequence.

公开(公告)号：US11996948B2

公开(公告)日：2024-05-28

申请号：US17351877

申请日：2021-06-18

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Assaf Touboul ,  Daniel Paz

IPC: H04L1/00 ,  H04L1/06 ,  H04L1/1812 ,  H04L1/1867

CPC classification number: H04L1/1819 ,  H04L1/0643 ,  H04L1/189 ,  H04L1/1896

Abstract: Methods, systems, and devices for wireless communications are described. One method may include a user equipment (UE) receiving, in a first transmission time interval, a code block group including a set of code blocks associated with a set of codewords, each codeword being associated with one of a set of decoding levels introduced in communication scheme that uses multi-level coded modulation and multi-level sequential decoding. The UE may determine that a decoding procedure is unsuccessful, and transmit a feedback message including a first indicator that the decoding procedure was unsuccessful and a second indicator of a lowest decoding level for which the decoding procedure was unsuccessful. The UE may then receive, from the base station in a second transmission time interval, a retransmission of code blocks of the lowest failed decoding level coupled to a new data transmission for code blocks associated with all other decoding levels.