公开(公告)号：US20170353947A1

公开(公告)日：2017-12-07

申请号：US15613014

申请日：2017-06-02

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Tao Luo ,  Krishna Kiran Mukkavilli ,  June Namgoong ,  Yang Yang ,  Tingfang Ji

IPC: H04W72/04 ,  H04B7/0413 ,  H04L5/00 ,  H04W72/12

Abstract: Aspects of the disclosure provide a slot structure (e.g., the arrangement of channels and pilot signals within a slot) that can relax the processing timeline for a wireless communication device. For example, in the first or initial symbol of a slot, control information may be frequency division multiplexed (FDM) with a demodulation reference signal (DMRS) or with user data. In some cases, delayed-processing data may be sampled, and the samples may be buffered at the receiving device, for processing later, after control information needed to process the data has been received and processed. Further aspects provide for payload pre-tapering. That is, when a device delays the processing of data bits, this can cause a processing bottleneck after that buffering delay. By virtue of various pre-tapering techniques described herein, the processing load needed to process the delayed-processing data can be reduced. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20170339697A1

公开(公告)日：2017-11-23

申请号：US15591374

申请日：2017-05-10

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Jing Jiang ,  Hao Xu ,  Lu Zhao ,  Alexandros Manolakos ,  June Namgoong ,  Wei Zeng ,  Huang Lou

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0007 ,  H04L5/0044 ,  H04L25/03821 ,  H04L27/2602 ,  H04W16/14

Abstract: Aspects of the present disclosure describe a guard band signal for communication on a guard band between a first frequency band utilized by a first radio access technology having a first sub-carrier spacing and a second frequency band utilized by a second radio access technology having a second sub-carrier spacing that is a multiple of the first sub-carrier spacing. The guard band signal includes a symbol that is repeated a number of times equal to the multiple. The guard band signal may be generated and transmitted by a transmitting device. The guard band signal may be received and decoded by a receiving device. The guard band signal is interpretable according to a first numerology of the first radio access technology and according to a second numerology of the second radio access technology.

公开(公告)号：US20170272296A1

公开(公告)日：2017-09-21

申请号：US15251904

申请日：2016-08-30

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Jing Jiang ,  June Namgoong ,  Tao Luo ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04L27/26 ,  H04L5/00 ,  H04W76/04 ,  H04W72/04

CPC classification number: H04L27/2613 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0082 ,  H04L5/1469 ,  H04W72/042 ,  H04W76/28

Abstract: Aspects of the present disclosure provide a wireless device that communicates with another wireless device utilizing self-contained subframes. The wireless device communicates with a scheduling entity utilizing a plurality of self-contained subframes that include a first subframe and a second subframe. Each of the self-contained subframes includes an uplink (UL) portion and a downlink (DL) portion. The wireless device further receives DL control information from the scheduling entity in the DL portion of the first subframe, and transmits UL data that includes a plurality of reference signal bursts to the scheduling entity in the UL portion of the first subframe. The plurality of reference signal bursts are uniformly spaced in at least a portion of the UL portion of the first subframe.

公开(公告)号：US20170187441A1

公开(公告)日：2017-06-29

申请号：US15176986

申请日：2016-06-08

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Jing Jiang ,  June Namgoong ,  Raghuraman Krishnamoorthl ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04B7/06 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/0663 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0216 ,  H04L25/0218 ,  H04L25/022 ,  H04W72/0413

Abstract: Techniques are described for wireless communication. One method includes identifying a plurality of channel responses corresponding to a plurality of channels. Each channel of the plurality of channels corresponds to a pairing of a transmit antenna with a receive antenna. Each channel response of the plurality of channel responses corresponds to a plurality of tone subsets. The method also includes selecting, for each channel of the plurality of channels, a subset of non-frequency domain components of the channel response for the channel, and transmitting, for at least one channel of the plurality of channels, at least one subset of channel state information (CSI). The at least one subset of CSI is based at least in part on at least one of the selected subsets of non-frequency domain components.

公开(公告)号：US20170164367A1

公开(公告)日：2017-06-08

申请号：US15225593

申请日：2016-08-01

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  June Namgoong ,  Raghuraman Krishnamoorthi ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Krishna Kiran Mukkavilli

IPC: H04W72/04 ,  H04L5/14 ,  H04L12/26 ,  H04L5/00

CPC classification number: H04B10/5055 ,  H04B7/0456 ,  H04B7/0639 ,  H04B7/0691 ,  H04L5/0051 ,  H04L5/14 ,  H04L25/0202 ,  H04L43/16 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described. One method includes identifying a plurality of intermediate precoders corresponding to a plurality of tone subsets. The plurality of intermediate precoders define a plurality of vectors across the plurality of tone subsets. The method further includes selecting, for each vector of the plurality of vectors, a subset of non-frequency domain components of the vector, such as time-domain components; modifying the plurality of intermediate precoders to a plurality of smoothed precoders based at least in part on the selected subset of non-frequency domain components for each vector; and precoding a plurality of transmit streams using the plurality of smoothed precoders. The plurality of smoothed precoders is smoothed in a frequency domain compared to the plurality of intermediate precoders. Smoothing precoders may enable application of wideband channel estimation techniques using user equipment (UE)-specific reference signals.

公开(公告)号：US09648504B2

公开(公告)日：2017-05-09

申请号：US14101919

申请日：2013-12-10

Applicant: QUALCOMM Incorporated

Inventor： June Namgoong ,  Srikant Jayaraman ,  Ruoheng Liu

IPC: H04W16/28 ,  H04B7/06 ,  H04W88/08

CPC classification number: H04W16/28 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/068 ,  H04B7/0691 ,  H04B7/0695 ,  H04W88/08

Abstract: Methods, systems, and devices are described for transmitting across a broad azimuth using an antenna array. In one example, a method is described that includes forming two subarrays from an antenna array. Beamforming weights are selected for each subarray to cause the radiation patterns to be complementary over a range of the azimuth of a cell. The beamforming weights may be selected according to a recursive relation based on the number of antenna elements in each subarray. Information may be encoded, scrambled, and mapped to modulation symbols. A Space Frequency Block Code (SFBC) such as an Alamouti Code may then be used to form two signals to be transmitted over the two subarrays.

公开(公告)号：US12199722B2

公开(公告)日：2025-01-14

申请号：US17464570

申请日：2021-09-01

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Yeliz Tokgoz ,  Naga Bhushan ,  June Namgoong ,  Hwan Joon Kwon ,  Taesang Yoo ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04B17/345 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04W48/12

Abstract: A second base station may allocate a set of downlink resources for a downlink transmission. The set of downlink resources may include a subset of null resources, which may serve as a signature for the second base station. The second base station may transmit downlink data or reference signals on the set of downlink resources including the subset of null resources. A first UE may experience the downlink transmission from the second base station as interference. The first UE may identify the set of downlink resources. The first UE may identify the subset of null resources. The first UE may transmit, to a first base station, an indication of the subset of null resources. The first base station may identify the second base station based on the indication of the subset of null resources. The first base station may transmit, to the second base station, an interference coordination message.

公开(公告)号：US12056609B2

公开(公告)日：2024-08-06

申请号：US16918782

申请日：2020-07-01

Applicant: QUALCOMM Incorporated

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

IPC: G06N3/08 ,  G06N3/04 ,  H04B1/02 ,  H04B1/06 ,  H04B17/20 ,  H04L1/00 ,  H04L25/02 ,  H04L5/00

CPC classification number: G06N3/08 ,  G06N3/04 ,  H04B1/02 ,  H04B1/06 ,  H04B17/20 ,  H04L1/0026 ,  H04L25/0224 ,  H04L25/0254 ,  H04L5/0007

Abstract: A method of wireless communication performed by a receiving device includes determining a transmission reference point value and determining a transmission reference point gradient of a loss based on the transmission reference point value. The receiving device also transmits a message comprising the transmission reference point gradient to a transmitting device. A method of wireless communication by a transmitting device includes receiving a transmission reference point gradient of a loss from a receiving device. The transmitting device determines a transmission point-payload gradient of a transmission reference point value with respect to an encoded value generated by a transmitter neural network. The transmitting device also determines a payload gradient of the loss based on a product of the transmission reference point gradient and the transmission point-payload gradient. The transmitting device further updates weights of the transmitter neural network based on the payload gradient.

公开(公告)号：US12047216B2

公开(公告)日：2024-07-23

申请号：US17384411

申请日：2021-07-23

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  G06N3/08

CPC classification number: H04L27/2614 ,  G06N3/08 ,  H04L27/2649

Abstract: Various embodiments include methods for demodulating wireless transmission waveforms to reconstruct data tones, performed in receiver circuitry of a wireless communication device. The methods may include receiving time domain wireless transmission waveforms that include time domain peak reduction tones (PRTs) that were generated by a set of PRT neural networks using time domain data signals derived from frequency domain data tones in another wireless communication device, reconstructing the time domain data signals from the time domain wireless transmission waveforms using a receiver neural network that has been trained in conjunction with the set of PRT neural networks to generate a time domain reconstruction of data signals, and transforming the time domain reconstruction of data signals to a frequency domain reconstruction of data tones.

公开(公告)号：US11871250B2

公开(公告)日：2024-01-09

申请号：US17447260

申请日：2021-09-09

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Taesang Yoo ,  June Namgoong ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Naga Bhushan

IPC: H04L41/16 ,  H04W24/02 ,  G06N20/20 ,  H04L41/082 ,  H04W28/02 ,  H04W80/06 ,  H04L67/01

CPC classification number: H04W24/02 ,  G06N20/20 ,  H04L41/082 ,  H04L67/01 ,  H04W28/0215 ,  H04W80/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a client device may receive, using at least one lower layer of a wireless communication protocol stack, a machine learning component from a server device. The client device may transmit, to the server device and using the at least one lower layer, an update associated with the machine learning component, wherein transmitting the update comprises transmitting a plurality of transport blocks. Numerous other aspects are described.