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：US11601242B2

公开(公告)日：2023-03-07

申请号：US17024118

申请日：2020-09-17

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Muhammad Sayed Khairy Abdelghaffar ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli

IPC: H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for fast adaptation of transmission properties of sounding reference signal (SRS) resource sets. A method that may be performed by a user equipment (UE) includes receiving sounding reference signal (SRS) configuration information, configuring the UE with one or more SRS resource sets, wherein each of the one or more SRS resource sets comprises one or more SRS resources; receiving signaling comprising a field indicating which of the one or more SRS resources in the one or more SRS resource sets are active and which of the one or more SRS resources in the one or more SRS resources sets are inactive; and transmitting one or more SRSs using only the one or more SRS resources that are active.

公开(公告)号：US11588563B2

公开(公告)日：2023-02-21

申请号：US17165864

申请日：2021-02-02

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Naga Bhushan ,  Junyi Li ,  Vasanthan Raghavan ,  Tianyang Bai ,  Joseph Binamira Soriaga ,  Alexandros Manolakos ,  Pavan Kumar Vitthaladevuni ,  Juergen Cezanne

IPC: H04B17/309 ,  H04W24/10 ,  H04B7/06

Abstract: Disclosed are techniques for computing and reporting a relevance metric for a positioning beacon beam. In an aspect, a first node receives, from a second node, a plurality of beams, determines a relevance metric for each of one or more beams of interest from the plurality of beams, wherein the relevance metric for each beam of the one or more beams of interest is based on a time of arrival at the first node of the beam and a signal strength of the beam, and sends, to the second node, a report identifying each of the one or more beams of interest and including the relevance metric for each of the one or more beams of interest.

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：US11387880B2

公开(公告)日：2022-07-12

申请号：US16804828

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Weiliang Zeng ,  Taesang Yoo ,  Sanaz Barghi ,  Naga Bhushan ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli ,  Xiaoxia Zhang ,  Tingfang Ji ,  Yongbin Wei

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0456 ,  H04L1/00 ,  H04L5/00

Abstract: Systems and methods facilitating feedback of robust channel state information (CSI), such as to provide full CSI feedback or otherwise providing CSI feedback, are described. CSI encoders and/or decoders used by network nodes may implement channel compression/reconstruction based upon neural-network (NN) training of collected channels. A structured payload having an interpretable payload portion and an uninterpretable payload portion may utilized with respect to CSI feedback. The channel compression provided according to some aspects of the disclosure supports feedback of robust CSI, in some instances including full CSI, as determined by a particular network node. Other aspects and features are also claimed and described.

公开(公告)号：US11160038B2

公开(公告)日：2021-10-26

申请号：US16489281

申请日：2018-03-30

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Pavan Kumar Vitthaladevuni ,  Seyed Ali Akbar Fakoorian ,  Yi Huang ,  Yu Zhang ,  Taesang Yoo

IPC: H04B7/0408 ,  H04W52/36 ,  H04L5/00 ,  H04W24/10 ,  H04W52/14 ,  H04W52/32 ,  H04W52/54

Abstract: Various aspects are described for an enhanced power headroom report (PHR) for feeding back beamformed sounding reference signal (SRS) power scaling. Beamformed SRS along directions where a user equipment (UE) can best nullify interference/maximize downlink (DL) signal to interference plus noise ratio (SINR) would be very helpful for DL beamforming. SRS beamforming requires additional support, if rank related decisions are being made at eNB. For example, power normalization factors need to be sent or reported on the uplink (UL) to eNB. This disclosure provides examples of how the PHR on the uplink can be used to do such reporting. There are two types of PHR being proposed, one nominal for the UL-oriented SRS, like LTE-style PHR, and one for the DL-oriented SRS where the UE also reports or indicates the power normalization factors of each SRS port.

公开(公告)号：US11044063B2

公开(公告)日：2021-06-22

申请号：US16485725

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Joseph Binamira Soriaga

IPC: H04L5/00 ,  H04B7/06

Abstract: Aspects of the present disclosure describe receiving, from an access point, an indication of at least one of a beamforming method for beamforming a RS or a normalization method for normalizing power for beamforming the RS. A channel covariance matrix corresponding to interference over a plurality of antenna ports can be generated, as well as a RS beamforming matrix based at least in part on at least one of modifying the channel covariance matrix or on the normalization method. The RS can be generated based on the RS beamforming matrix and the beamforming method. The RS can be transmitted to the access point based on the RS beamforming matrix.

公开(公告)号：US10264566B2

公开(公告)日：2019-04-16

申请号：US15441167

申请日：2017-02-23

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar Vitthaladevuni ,  Peter Pui Lok Ang ,  Chih Ping Li

IPC: H04W72/04 ,  H04B7/0413 ,  H04B7/06 ,  H04L1/00 ,  H04W72/12 ,  H04L1/18 ,  H04L5/00

Abstract: Aspects of the present disclosure provide a scheduling entity for facilitating Multiple Input Multiple Output (MIMO) wireless communication by dynamically assigning ranks to scheduled entities for each sub-band of a slot. In some examples, the rank assigned to a particular scheduled entity may be increased or decreased between sub-bands of the slot based on the amount of scheduled user data traffic for that particular scheduled entity relative to the amount of scheduled user data traffic for other scheduled entities. The scheduling entity further schedules resources within the sub-bands of the slot based on the assigned ranks and transmits an enhanced control channel providing scheduling information indicating the scheduled resources to the scheduled entities.

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：US20180027527A1

公开(公告)日：2018-01-25

申请号：US15441167

申请日：2017-02-23

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar Vitthaladevuni ,  Peter Pui Lok Ang ,  Chih Ping Li

IPC: H04W72/04 ,  H04B7/06 ,  H04L1/00 ,  H04B7/0413 ,  H04W72/12

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B7/0626 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1854 ,  H04L5/0053 ,  H04L5/0057 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1231 ,  H04W72/1247 ,  H04W72/1289

Abstract: Aspects of the present disclosure provide a scheduling entity for facilitating Multiple Input Multiple Output (MIMO) wireless communication by dynamically assigning ranks to scheduled entities for each sub-band of a slot. In some examples, the rank assigned to a particular scheduled entity may be increased or decreased between sub-bands of the slot based on the amount of scheduled user data traffic for that particular scheduled entity relative to the amount of scheduled user data traffic for other scheduled entities. The scheduling entity further schedules resources within the sub-bands of the slot based on the assigned ranks and transmits an enhanced control channel providing scheduling information indicating the scheduled resources to the scheduled entities.