公开(公告)号：US20210152418A1

公开(公告)日：2021-05-20

申请号：US17063517

申请日：2020-10-05

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Hung Dinh Ly ,  June Namgoong ,  Huilin Xu ,  Peter Pui Lok Ang ,  Shimman Arvind Patel ,  Krishna Kiran Mukkavilli ,  Joseph Patrick Burke

IPC: H04L12/24 ,  H04L5/14 ,  H04W72/04 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify one or more radio frequency (RF) spectrum bands for full-duplex communications, and may signal an indication of the UE's capability to support full-duplex communications for each RF spectrum band. The UE may further receive one or more configurations for full-duplex communications, which, in some examples, may be based on the UE's indicated capabilities. As an example, the UE may identify a guard band configuration for full-duplex communications, where the guard band configuration may be based on one or more aspects of resources used for the full-duplex communications. In other cases, the UE may identify a transmission hopping or antenna switching configuration for full-duplex communications. In any case, the UE may communicate with a base station in accordance with the one or more configurations and the UE's capabilities.

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.

公开(公告)号：US10476642B2

公开(公告)日：2019-11-12

申请号：US15619086

申请日：2017-06-09

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wei Zeng ,  June Namgoong ,  Hao Xu ,  Peter Gaal

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

Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method for wireless communication. The method includes determining at least one RS pattern for allocating a reference signal on an uplink channel and a downlink channel based on one or more transmission factors for transmitting the reference signal, wherein at least a portion of the at least one RS pattern is the same for the uplink channel and the downlink channel. The method further includes transmitting the reference signal using the determined RS pattern.

公开(公告)号：US10355822B2

公开(公告)日：2019-07-16

申请号：US16025722

申请日：2018-07-02

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Joseph Binamira Soriaga ,  Gabi Sarkis ,  June Namgoong

IPC: H04L1/00 ,  H04L1/18

Abstract: Wireless communication methods, systems, and devices capable of utilizing base graphs for error correction techniques. A base graph can be used to derive a low-density parity-check (LDPC) code used for encoding a retransmission of an original transmission in a wireless communication system. An exemplary method generally includes selecting, based on a modulation and coding scheme (MCS) and a resource allocation (RA) for transmitting a codeword, a base graph (BG), from which to derive a low density parity check (LDPC) code for use in encoding data bits in the codeword (e.g., encoding data bits of a bitstream such that some redundant bits are included in the codeword), encoding the data bits to generate the codeword using the LDPC code derived from the selected BG, and transmitting the codeword using the MCS via resources of the RA.

公开(公告)号：US10355803B2

公开(公告)日：2019-07-16

申请号：US15791319

申请日：2017-10-23

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Yang Yang ,  June Namgoong ,  Jing Jiang

IPC: H04B7/06 ,  H04L5/00 ,  H04J11/00 ,  H04J13/00 ,  H04L27/26 ,  H04W56/00

Abstract: Wireless communication devices are adapted to facilitate multiplexing of reference signals. According to one example, a wireless communication device can multiplex a first reference signal and a second reference signal utilizing code division multiplexing for transmission across a first resource element and a second resource element. The first resource element may utilize a first subcarrier in a first OFDM symbol employing a first numerology. The second resource element may utilize a second subcarrier in a second OFDM symbol employing a second numerology that is different from the first numerology, where the second subcarrier overlaps in frequency at least a portion of the first subcarrier. The first and second OFDM including the multiplexed first and second reference signals may subsequently be transmitted. Other aspects, embodiments, and features are also included.

公开(公告)号：US20180035454A1

公开(公告)日：2018-02-01

申请号：US15382416

申请日：2016-12-16

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar Vitthaladevuni ,  June Namgoong ,  Joseph Binamira Soriaga

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04W72/1289 ,  H04L1/001 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0069

Abstract: Aspects of the present disclosure provide methods and apparatuses that can utilize different subframe structures to estimate a channel during wireless communication in different scenarios. When a scheduling entity determines that a scheduled entity is near or at a cell edge, the scheduled entity may use a special subframe to estimate the channel utilizing more resources of the subframe, for example data signals. The special subframe can facilitate channel estimation by using a less complex (or lower rank) modulation and coding scheme (MCS) for the data symbols than a normal subframe for other scheduled entities not located near the cell edge.

公开(公告)号：US12245251B2

公开(公告)日：2025-03-04

申请号：US18324005

申请日：2023-05-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/23 ,  H03F1/32 ,  H04L5/00 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. A first device and a second device may communicate via a channel. The first device may generate and transmit a reference signal, which may be a distortion probing reference signal with a high peak to average power ratio. In one implementation, the first device may use the reference signal as an input for a neural network model to learn a nonlinear response of the second device transmission components. In another implementation, the second device may sample the generated reference signal, and use the samples as inputs for a neural network model to learn the nonlinear response. The first device and the second device may exchange signaling based on learning the nonlinear response, and each device may compensate for the nonlinear response when communicating via the channel.

公开(公告)号：US12237947B2

公开(公告)日：2025-02-25

申请号：US18004839

申请日：2021-08-17

Applicant: QUALCOMM Incorporated

Inventor： June Namgoong ,  Taesang Yoo ,  Naga Bhushan ,  Pavan Kumar Vitthaladevuni ,  Jay Kumar Sundararajan ,  Wanshi Chen ,  Krishna Kiran Mukkavilli ,  Hwan Joon Kwon ,  Alexandros Manolakos ,  Tingfang Ji

IPC: H04L25/02 ,  G06N3/0455 ,  H04L25/03

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a client may select, based at least in part on a classifier, an autoencoder of a set of autoencoders to be used for encoding an observed wireless communication vector to generate a latent vector. The client may transmit the latent vector and an indication of the autoencoder. Numerous other aspects are provided.

公开(公告)号：US12088378B2

公开(公告)日：2024-09-10

申请号：US17447778

申请日：2021-09-15

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Pavan Kumar Vitthaladevuni ,  Naga Bhushan ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Hwan Joon Kwon ,  June Namgoong ,  Jay Kumar Sundararajan ,  Sooryanarayanan Gopalakrishnan ,  Wanshi Chen

IPC: H04J3/14 ,  G06N3/02 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0626 ,  G06N3/02 ,  H04B7/0417 ,  H04L5/0051

Abstract: A base station may precode a first reference signal using a first precoder (P1) and at least one second reference signal using at least one second precoder (P2). At least two UEs may measure the first reference signal and the at least one second reference signal, and transmit channel state feedback based on the measuring (m11 and m12 for a first UE, and m21 and m22 for a second UE). The channel state feedback may comprise channel state information compressed by at least one neural network. The base station may derive a higher-level precoder (W) for multiple-input multiple-output (MIMO) downlink transmission to the at least two UEs.

公开(公告)号：US20240292338A1

公开(公告)日：2024-08-29

申请号：US18174258

申请日：2023-02-24

Applicant: QUALCOMM Incorporated

Inventor： Akash Sandeep Doshi ,  June Namgoong ,  Taesang Yoo ,  Hyojin Lee

IPC: H04W52/14 ,  H04W52/24

CPC classification number: H04W52/146 ,  H04W52/242 ,  H04W52/245

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a network entity, an activation signal that transitions the UE from a first mode where the UE is capable of determining a channel quality using reference signals from the network entity to a second mode where the UE is capable of determining the channel quality using radio maps associated with the network entity. The UE may receive, based at least in part on the activation signal, an indication of a set of radio maps associated with the network entity. The UE may perform a channel performance procedure to determine the channel quality associated with the network entity using the set of radio maps and a geographic location of the UE, the geographic location of the UE being mapped within the set of radio maps associated with the network entity.