公开(公告)号：US11799525B2

公开(公告)日：2023-10-24

申请号：US17250896

申请日：2019-09-26

Applicant: QUALCOMM Incorporated

Inventor： Bo Chen ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Ruifeng Ma ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/0408

CPC classification number: H04B7/0478 ,  H04B7/0408

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine channel state information for a communication link, wherein the channel state information is based at least in part on a linear combination associated with a plurality of beams of the communication link, wherein a first set of beams used for a first subband, of a plurality of subbands of the communication link, is different than a second set of beams used for a second subband of the plurality of subbands, and wherein the plurality of beams includes the first set of beams and the second set of beams; and transmit the channel state information. Numerous other aspects are provided.

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：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.

公开(公告)号：US20210273706A1

公开(公告)日：2021-09-02

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 ,  H04L5/00 ,  H04L1/00 ,  H04B7/0456

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：US20210266787A1

公开(公告)日：2021-08-26

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: H04W28/06 ,  H04W24/10 ,  H04W8/24 ,  H04W36/00

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：US11031992B2

公开(公告)日：2021-06-08

申请号：US16907098

申请日：2020-06-19

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/08 ,  H04W72/08 ,  H04B17/309 ,  H04W24/10 ,  H04B7/0417

Abstract: Disclosed are techniques for receive beam selection for measuring a reference radio frequency (RF) signal. In an aspect, a first node determines a type of measurement to be performed on the reference RF signal, selects a receive beam based on the type of measurement to be performed on the reference RF signal, generates the selected receive beam, receives, from a second node, using the generated receive beam, the reference RF signal transmitted on a wireless channel, and performs one or more measurements on the received reference RF signal according to the type of the measurement to be performed.

公开(公告)号：US10397944B2

公开(公告)日：2019-08-27

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 ,  H04L1/00 ,  H04L5/00

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：US10389503B2

公开(公告)日：2019-08-20

申请号：US15811289

申请日：2017-11-13

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Pavan Kumar Vitthaladevuni ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0452

Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal (SRS) to the base station. The base station characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. As part of applying the channel information, the base station forms the beam to the UE based on the uplink channel information obtained from the SRS. The UE may include an array of antennas, each UE transmitting a different SRS that the base station receives and uses to characterize the downlink. Multiple UEs (or a single UE with multiple antennas) transmit SRS at the same time and frequency allocation (non-orthogonal), but with each sending its own unique SRS. Further, multiple UEs (or a single UE with multiple antennas) may send their SRS at unique time/frequency allocations (orthogonal).

公开(公告)号：US10278088B2

公开(公告)日：2019-04-30

申请号：US15389337

申请日：2016-12-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W24/10 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04L25/02 ,  H04W52/14 ,  H04W52/32 ,  H04W52/24 ,  H04W52/10 ,  H04W52/34 ,  H04W52/38 ,  H04B17/309 ,  H04B17/318

Abstract: Aspects of the present disclosure provide for enhanced channel estimation in a wireless communication network. Uplink channel estimation may be enhanced by increasing the uplink transmit power of an uplink reference signal. For example, the uplink transmit power may be increased by multiplying a measured downlink path loss by a predetermined factor to produce an increased downlink path loss and calculating the uplink transmit power based on the increased downlink path loss. Downlink channel estimation may be enhanced by increasing a number of tones on a downlink reference signal assigned to a scheduled entity relative to the number of tones assigned to other scheduled entities.

公开(公告)号：US09451489B2

公开(公告)日：2016-09-20

申请号：US14534919

申请日：2014-11-06

Applicant: QUALCOMM Incorporated

Inventor： Aziz Gholmieh ,  Seyed Ali Ahmadzadeh ,  Amir Aminzadeh Gohari ,  Arnaud Meylan ,  Pavan Kumar Vitthaladevuni ,  Jong Hyeon Park

IPC: H04L12/26 ,  H04W24/08 ,  H04W28/02 ,  H04W72/12

CPC classification number: H04W24/08 ,  H04L47/823 ,  H04W24/00 ,  H04W28/0205 ,  H04W28/0231 ,  H04W28/0278 ,  H04W72/1252

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines an observed bit rate based on uplink transmissions of the UE, estimates an available link capacity for the UE, selects an estimate factor, and estimates available uplink throughput for future uplink transmissions of the UE as a function of the observed bit rate, the estimated available link capacity, and the estimate factor.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该设备基于UE的上行链路传输确定观察到的比特率，估计UE的可用链路容量，选择估计因子，并且估计用于UE的未来上行链路传输的可用上行链路吞吐量作为观察到的比特率的函数， 估计可用链路容量和估计因子。