公开(公告)号：US11729050B2

公开(公告)日：2023-08-15

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: H04L41/0803 ,  H04L5/14 ,  H04B7/06 ,  H04W72/21 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04L41/0803 ,  H04B7/0602 ,  H04L5/14 ,  H04W72/21 ,  H04W72/0446 ,  H04W72/0453

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：US20230246775A1

公开(公告)日：2023-08-03

申请号：US18194479

申请日：2023-03-31

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  June Namgoong ,  Taesang YOO ,  Krishna Kiran MUKKAVILLI ,  Naga BHUSHAN ,  Tingfang Ji ,  Hwan Joon Kwon ,  Pavan Kumar VITTHALADEVUNI ,  Jay Kumar SUNDARARAJAN

IPC: H04L5/00 ,  H04B17/309

CPC classification number: H04L5/0048 ,  H04B17/309

Abstract: Methods, systems, and devices for wireless communications are described. A configuration for a reference signal used to determine a non-linear behavior of transmission components at a transmitting device may be determined. The configuration for the reference signal may be determined based on signaling transmitted by the transmitting device, signaling transmitted by a device that receives the reference signal, or both. Additionally, or alternatively, the configuration for the reference signal may be determined based on a configuration of other signals transmitted by the transmitting device prior to or concurrently with the transmission of the reference signal. The determined configuration may be used to generate and transmit the reference signal or to determine a configuration of a received reference signal. In both cases, a non-linear response of transmission components at the transmitting device may be determined based on the reference signal.

公开(公告)号：US11716233B2

公开(公告)日：2023-08-01

申请号：US17332856

申请日：2021-05-27

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04L1/00 ,  H04W72/0446

CPC classification number: H04L27/2614 ,  H04L1/0071 ,  H04W72/0446

Abstract: Aspects of the disclosure relate to selection and use of peak reduction tones (PRTs) including obtaining a predetermined sequence of PRTs corresponding to a set of granted resources including a plurality of tones, mapping a set of data to a first subset of the plurality of tones outside of the predetermined sequence of PRTs and mapping a set of PRTs to a second subset of the plurality of tones within the predetermined sequence of PRTs. At least one peak of a time domain representation of the first subset of the plurality of tones is canceled using a time domain representation of the second subset of the plurality of tones. A transmitted waveform comprising the first subset of the plurality of tones and the second subset of the plurality of tones is transmitted.

公开(公告)号：US11695608B2

公开(公告)日：2023-07-04

申请号：US17331605

申请日：2021-05-26

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04W72/0453

CPC classification number: H04L27/2614 ,  H04W72/0453

Abstract: A transmitting device communicates with a receiving device an indication to apply PAPR reduction for a data transmission. The transmitting device applies a first PAPR reduction signal and a second PAPR reduction signal to the data transmission to reduce at least one signal peak of the data transmission to yield a transmission signal, where the first PAPR reduction signal includes a first set of PRTs that does not overlap with data tones and the second PAPR reduction includes a second set of PRTs that overlaps with the data tones and does not overlap with reserved tones. The transmitting device transmits the transmission signal to the receiving device.

公开(公告)号：US11689258B2

公开(公告)日：2023-06-27

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: H04B7/02 ,  H04B7/0456 ,  H04L25/02 ,  H04B7/06 ,  H04W72/23

CPC classification number: H04B7/0456 ,  H04B7/0634 ,  H04L25/0204 ,  H04L25/0224 ,  H04W72/23

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：US11611379B2

公开(公告)日：2023-03-21

申请号：US17246374

申请日：2021-04-30

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Shimman Arvind Patel ,  Krishna Kiran Mukkavilli ,  June Namgoong ,  Taesang Yoo ,  Renqiu Wang

IPC: H04B7/04 ,  H04B7/0456 ,  H04W72/14 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described in which a base station may identify a null space matrix that lies within a null space of an effective channel matrix for communications between the base station and a user equipment (UE). An indication of the null space matrix may be provided to the UE, and the null space matrix used to determine modifications to a precoding matrix. The base station and UE may determine a redistribution matrix that provides a reduced variance of transmission powers for a number of transmission channels, where a product of the null space matrix and the redistribution matrix may be computed and added to the precoding matrix to generate a modified precoding matrix. The modified precoding matrix may be used to generate the communications from the base station and UE with reduced power variance across channels.

公开(公告)号：US11581923B2

公开(公告)日：2023-02-14

申请号：US16488235

申请日：2018-04-04

Applicant: Qualcomm Incorporated

Inventor： Makesh Pravin John Wilson ,  June Namgoong ,  Yu Zhang ,  Alexandros Manolakos ,  Jing Sun ,  Tao Luo ,  Bilal Sadiq

IPC: H04W4/00 ,  H04B7/0452 ,  H04L25/02 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. In multi-user (MU) multiple-input multiple-output (MIMO) wireless communications systems, a base station may perform signaling to indicate information related to ports assigned to one or more UEs. The base station may also signal information regarding ports shared with other UEs, which the UE may use when performing channel estimation. In some examples, the base station may signal a number of ports used per sub-band to the UE or a number of demodulation reference signal (DMRS) ports used by the UE. The base station may signal a sub-set of a total number of ports that are shared by other UEs overlapping with the resource allocation of the UE. The signaling may indicate a number of combs used by the base station in the resource allocation for the UE.

公开(公告)号：US11533658B2

公开(公告)日：2022-12-20

申请号：US17180124

申请日：2021-02-19

Applicant: QUALCOMM Incorporated

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

IPC: G06N3/04 ,  G06N3/08 ,  G06N20/00 ,  H04B7/0417 ,  H04B7/0456 ,  H04B17/24 ,  H04B17/373 ,  H04W8/24 ,  H04W24/10 ,  H04W28/06 ,  H04W36/00 ,  H04W72/12 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W92/02 ,  H04W92/10

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：US11483740B2

公开(公告)日：2022-10-25

申请号：US16896171

申请日：2020-06-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W28/20 ,  H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04W72/12

Abstract: A method at a scheduling entity might include determining that interference is present from a neighboring scheduling entity, which implements a second subcarrier spacing that is different from a first subcarrier spacing of the scheduling entity. The scheduling entity might request the neighboring scheduling entity to negotiate a bandwidth group (BWG), where the BWG is a bandwidth occupied by downlink subcarriers within which a transmission parameter is maintained. The method might include negotiating a bandwidth of the bandwidth group and transmitting, if negotiating is successful, downlink data to a scheduled entity served by the scheduling entity according to the negotiated bandwidth. The transmission parameter might be a precoder, rank, modulation order, power inside each BWG, or numerology. The numerology might be scalable and might be a combination of subcarrier spacing and cyclic prefix (CP) overhead. The subcarrier spacing might be scaled while keeping constant the CP overhead as a percentage of a symbol duration.

公开(公告)号：US11468328B2

公开(公告)日：2022-10-11

申请号：US16911713

申请日：2020-06-25

Applicant: QUALCOMM Incorporated

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

IPC: G06N3/08 ,  H04W88/06

Abstract: Embodiments include methods for managing information transmission between a base station and a wireless device. A base station may apply an encoder neural network to assistance information that may aid a wireless device in communicating with the base station to generate encoded assistance information. The base station may transmit the encoded assistance information to the wireless device via a control or data channel. The wireless device may use the encoded assistance information to update one or more behaviors of the wireless device without decoding the encoded assistance information. The wireless device may include a different neural network configured to learn how to use the encoded assistance information to update one or more behaviors of the wireless device.