公开(公告)号：US20230261712A1

公开(公告)日：2023-08-17

申请号：US17672525

申请日：2022-02-15

Applicant: QUALCOMM Incorporated

Inventor： Eren Balevi ,  Taesang Yoo ,  June Namgoong ,  Kirty Prabhakar Vedula

IPC: H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0626 ,  H04B7/0658 ,  H04L1/0009

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may encode channel state feedback (CSF) information to compress the CSF information to a first encoding output associated with a first dimensional space, and apply entropy coding to the first encoding output of the channel state feedback information. The entropy coding may transform the first encoding output to a second encoding output associated with a second dimensional space that is smaller than the first dimensional space of the first encoding output. The UE may transmit a CSF message comprising the second encoding output. A network device may receive the CSF message and apply entropy decoding to the compressed CSF information to partially decompress the compressed CSF information to a first decoding output. The network device may decode the first decoding output to completely decompress the compressed CSF information to a second decoding output.

公开(公告)号：US11706071B2

公开(公告)日：2023-07-18

申请号：US17319014

申请日：2021-05-12

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Krishna Kiran Mukkavilli ,  Gokul Sridharan ,  June Namgoong

IPC: H04L27/26 ,  H04B17/336 ,  H04W24/10

CPC classification number: H04L27/2614 ,  H04B17/336 ,  H04W24/10

Abstract: Aspects presented herein may improve the efficiency and performance of the tone reservation PAPR reduction technique by allocating peak reduction tone based at least in part on a channel condition, such as based on the signal to noise ratio of the channel. In some aspects, a transmitting device measures a signal to noise ratio for a plurality of tones within a frequency resource. The transmitting device selects a location of one or more reserved tones (e.g., peak reduction tones) among one or more tones based at least in part on an SNR for one or more tones. The transmitting device transmits data to a receiving device in a subset of the plurality of tones that does not include the one or more peak reduction tones. Other aspects and features are also disclosed.

公开(公告)号：US20230170949A1

公开(公告)日：2023-06-01

申请号：US17537332

申请日：2021-11-29

Applicant: QUALCOMM Incorporated

Inventor： June Namgoong ,  Hyojin Lee ,  Taesang Yoo ,  Naga Bhushan ,  Tingfang Ji ,  Krishna Kiran Mukkavilli

IPC: H04B7/0456 ,  H04L25/02 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04L25/0204 ,  H04L25/0224 ,  H04B7/0634 ,  H04W72/042

Abstract: Methods, systems, and devices for wireless communications are described. A base station may associate a first and second port with a set of antenna elements based on a first and second linear precoding vector. The base station may generate coefficients indicating a first combination and a second combination of a first data set for a first user equipment (UE) and a second data set for a second UE. The base station may apply the first and second linear precoding vectors to the first and second combinations, respectively, transmit a first demodulation reference signal (DMRS) and a second DMRS using a first comb corresponding to the first and second ports, and transmit at least a third DMRS indicating the coefficients using a second comb. The UEs may extract data from the precoded combinations by applying the coefficients and estimating channels associated with the first and second DMRS.

公开(公告)号：US20230075648A1

公开(公告)日：2023-03-09

申请号：US18054797

申请日：2022-11-11

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Naga Bhushan ,  Pavan Kumar Vitthaladevuni ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Jay Kumar Sundararajan

IPC: H04W28/06 ,  H04W24/10 ,  G06N20/00 ,  H04W36/00 ,  H04W8/24 ,  G06N3/04 ,  H04B7/0417 ,  G06N3/08 ,  H04B7/0456 ,  H04B17/24 ,  H04W72/12 ,  H04B17/373

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a measurement operation to attain multiple measurements to report to a base station. The measurements may correspond to a first number of bits if reported. The UE may compress the measurements using an encoder neural network (NN) to obtain an encoder output indicating the measurements. This encoder output may include a second number of bits that is less than the first number of bits. The UE may report the encoder output to the base station in this compressed form. At the base station, the encoder output may be decompressed according to a decoder NN. Once the base station decompresses the encoder output, the UE and base station may communicate according to the measurements determined from the decompression. In some cases, the base station may perform load redistribution based on the measurements.

公开(公告)号：US11516800B2

公开(公告)日：2022-11-29

申请号：US16838713

申请日：2020-04-02

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Muhammad Sayed Khairy Abdelghaffar ,  Huilin Xu ,  Hung Dinh Ly ,  June Namgoong

IPC: H04W72/04 ,  H04L5/14

Abstract: Bandwidth part (BWP) configurations supporting various communication approaches (e.g., full duplex and/or half duplex operations) are described. Full duplex (FD) frequency-based BWP configurations may, for example, be configured as a subset of defined BWP resources for supporting full duplex operation by base stations and/or user equipments (UEs). Usable bandwidth of a FD frequency-based BWP configuration may be selected from half duplex frequency-based BWPs in legacy BWPs. Bandwidths of usable BWPs for a FD frequency-based BWP configuration may be selected so as to be non-overlapping in frequency. Transition between configurations and modes (e.g., between full duplex frequency-based BWP configurations, between half duplex and full duplex modes, etc.) may be managed to avoid periods in which a communication device cannot perform any uplink or downlink transmissions due to switching between defined BWP configurations, or otherwise reduces BWP switching time. Other aspects and features are also claimed and described.

公开(公告)号：US11490371B2

公开(公告)日：2022-11-01

申请号：US16829732

申请日：2020-03-25

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Yang Yang ,  Heechoon Lee ,  Bilal Sadiq ,  June Namgoong

IPC: H04W72/04 ,  H04L5/00

Abstract: User equipment (UE)-specific information may be transmitted within a control resource set configured to carry resources common to UEs within a system. The UE-specific information may be associated with a search space having an aggregation level different from aggregation levels used with the common control resources and may occupy different modulation symbols within the common control resource set (e.g., to support flexible scheduling for multiple UEs). A base station and UE may operate in a system using one or more control resource sets within a system bandwidth. The UE may detect common control resources by monitoring decoding candidates in the control resource set according to a first set of aggregation levels. The UE may detect UE-specific control resources by monitoring decoding candidates in the control resource set according to other aggregation levels. The UE and base station may communicate based on control information obtained from the monitoring.

公开(公告)号：US20220284282A1

公开(公告)日：2022-09-08

申请号：US17194077

申请日：2021-03-05

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar Vitthaladevuni ,  Taesang Yoo ,  Naga Bhushan ,  June Namgoong

IPC: G06N3/08 ,  G06N3/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of one or more encoding operations to use for encoding a compressed dataset, the one or more encoding operations including a differential encoding operation, or an entropy encoding operation, or both. In some examples, using a neural network, the UE may first encode a dataset based on an additional encoding operation to generate a compressed dataset and then quantize the compressed dataset encoded based on the additional encoding operation. Subsequently, after the dataset has been initially encoded and then quantized, the UE may use the indication of the one or more encoding operations to further encode and compress the dataset. The UE may then transmit the dataset to a second device based on the one or more encoding operations.

公开(公告)号：US11329853B2

公开(公告)日：2022-05-10

申请号：US17306762

申请日：2021-05-03

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Hung Dinh Ly ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Peter Gaal ,  Taesang Yoo ,  Shimman Arvind Patel

IPC: H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a resource allocation indicating a plurality of transmission tones comprising a subset of data tones of a plurality of data tones and a subset of peak reduction tones (PRTs) of a plurality of PRTs, wherein the resource allocation indicates locations for the plurality of data tones and locations for the plurality of PRTs within a particular bandwidth, wherein the locations for the plurality of PRTs are arranged relative to the locations for the plurality of data tones according to a PRT subsequence of a universal PRT sequence, and wherein the PRT subsequence corresponds to a sub-band of the particular bandwidth; and transmit a data transmission using a waveform based at least in part on the resource allocation. Numerous other aspects are provided.

公开(公告)号：US20210344543A1

公开(公告)日：2021-11-04

申请号：US17241393

申请日：2021-04-27

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Peter Gaal ,  Taesang Yoo ,  Gokul Sridharan ,  Shimman Arvind Patel

IPC: H04L27/26 ,  H04W72/04

Abstract: Wireless communications systems may configure a subset of allocated resources (e.g., one or more resource elements (REs) of one or more allocated resource blocks (RBs)) as peak reduction tones (PRTs) for a peak-cancelation signal. For instance, wireless communications systems may configure a fixed PRT allocation based on a Costas array. In some examples, each column of a Costas array may correspond to a RB of a set of allocated resources. A transmitting device may thus identify one or more PRT REs based on the Costas array and a mapping of allocated RBs to the columns of the Costas array. For instance, a transmitting device may identify a pattern of PRT REs to use for a peak-cancellation signal based at least in part on a configured Costas array (e.g., where the peak-cancellation signal may reduce peaks of a corresponding data signal to ultimately reduce peak-to-average power ratio (PAPR) of a transmission).

公开(公告)号：US20210288854A1

公开(公告)日：2021-09-16

申请号：US17199788

申请日：2021-03-12

Applicant: QUALCOMM Incorporated

Inventor： Krishna Kiran Mukkavilli ,  June Namgoong ,  Taesang Yoo ,  Naga Bhushan ,  Tingfang Ji

IPC: H04L27/26 ,  H04W72/04 ,  H04W76/27

Abstract: Systems and methods providing peak to average power ratio (PAPR) shaping for PAPR reduction using, for example, an extra-allocation peak reduction tone (PRT) signal processing technique are described. Carrier resources outside of carrier resources allocated for data transmission may be utilized for extra-allocation PRTs. Use of extra-allocation carrier resources for transmitting extra-allocation PRTs may be subject to a power threshold (T). The extra-allocation carrier resources and/or extra-allocation PRTs may be configured for peak to average power shaping of signal transmissions by a wireless device, such as base stations, user equipments (UEs), etc. Other aspects and features are also claimed and described.