公开(公告)号：US10652924B2

公开(公告)日：2020-05-12

申请号：US16039154

申请日：2018-07-18

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink ,  Didier Johannes Richard Van Nee ,  Albert Van Zelst ,  Bin Tian ,  Hemanth Sampath

IPC: H04W74/08 ,  H04L1/18 ,  H04L27/26 ,  H04L5/00 ,  H04W28/26 ,  H04W52/02 ,  H04L27/00 ,  H04L1/00 ,  H04W84/12

Abstract: Systems and methods are disclosed for a wireless device to transmit or receive a channel busy time (CBT) to or from other devices in a wireless network. For transmitting, the wireless device may determine a CBT during which a wireless channel is to be occupied, generate a universal reservation signal (URS) indicating the CBT, and transmit on the wireless channel the URS to at least one other wireless device. For receiving, the wireless device may receive on a wireless channel a URS from a second wireless device, the URS configured to indicate the CBT. The wireless device may also refrain from attempting to transmit on the wireless channel during the CBT.

公开(公告)号：US10601715B2

公开(公告)日：2020-03-24

申请号：US16251030

申请日：2019-01-17

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Sameer Vermani

IPC: H04L12/801 ,  H04N7/173 ,  H04L1/18 ,  H04W72/12 ,  H04W74/04 ,  H04L12/927 ,  H04L1/00 ,  H04L12/911 ,  H04L12/851 ,  H04B7/26 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0452 ,  H04W52/14 ,  H04W74/00 ,  H04W74/08 ,  H04L1/16 ,  H04W28/24 ,  H04W52/50 ,  H04W28/06

Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method for wireless communication is provided. The method includes receiving a trigger frame from an access point, the trigger frame being transmitted to two or more stations and indicating an uplink transmission opportunity. The trigger frame further includes a request for the two or more stations to concurrently transmit uplink data at a specific time. The method includes transmitting uplink data at the specific time to the access point concurrently with another of the two or more stations transmitting uplink data to the access point.

公开(公告)号：US10469387B2

公开(公告)日：2019-11-05

申请号：US15791300

申请日：2017-10-23

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Sameer Vermani

IPC: H04L1/00 ,  H04L12/927 ,  H04L12/911 ,  H04W52/50 ,  H04W28/06 ,  H04L5/00 ,  H04L12/801 ,  H04N7/173 ,  H04L12/851 ,  H04B7/26 ,  H04W72/04 ,  H04B7/0452 ,  H04W52/14 ,  H04L1/18 ,  H04W72/12 ,  H04W74/00 ,  H04W74/04 ,  H04W74/08 ,  H04L1/16 ,  H04W28/24

Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method for wireless communication includes receiving, via a first device, a first wireless message granting permission for the first device to transmit a message during a transmission opportunity, the first wireless message being transmitted to the first device at least partially concurrently with a transmission of at least a portion of a second wireless message addressed to a second device, the first wireless message being received over a first spatial stream and the second wireless message being transmitted over a second spatial stream; and transmitting, via the first device, a third message to a third device during the transmission opportunity at least partially concurrently with a transmission of a fourth message by the second device to the third device.

公开(公告)号：US10165591B2

公开(公告)日：2018-12-25

申请号：US14819102

申请日：2015-08-05

Applicant: QUALCOMM Incorporated

Inventor： Hemanth Sampath ,  Vincent Knowles Jones, IV ,  Maarten Menzo Wentink ,  Santosh P. Abraham

IPC: H04W72/12 ,  H04B7/0452 ,  H04W52/14

Abstract: Certain aspects of the present disclosure relate to a method for enhanced multi-user multiple input multiple output (MU-MIMO) wireless communications. The proposed method may reduce and/or eliminate stringent frequency and time synchronization requirements for stations (STAs) to participate in a downlink MU-MIMO transaction by utilizing deterministic scheduling.

公开(公告)号：US10158511B2

公开(公告)日：2018-12-18

申请号：US13887855

申请日：2013-05-06

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Youhan Kim ,  Sameer Vermani ,  Tevfik Yucek ,  Hemanth Sampath

IPC: H04L27/26 ,  H04L5/00 ,  H04W52/14 ,  H04W52/24 ,  H04L25/03

Abstract: Systems, methods, and devices for wireless communication are provided. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a processor configured to generate a packet for transmission via a wireless signal. The packet is generated for transmission over a bandwidth of 1 MHz using at least one orthogonal frequency-division multiplexing (OFDM) symbol. The apparatus further includes a transmitter configured to transmit the packet via the wireless signal having unique power spectral density characteristics.

公开(公告)号：US10153933B2

公开(公告)日：2018-12-11

申请号：US15480643

申请日：2017-04-06

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Didier Johannes Richard Van Nee ,  Hemanth Sampath

IPC: H04L27/26 ,  H04W52/32 ,  H04W84/12 ,  H04B7/0413

Abstract: Techniques are provided for constructing or determining a training sequence as a part of transmission preamble to minimize (or at least reduce) a peak-to-average power ratio (PAPR) at a transmitting node. In one example, a long training field (LTF) sequence of a preamble is determined that combines a set of interpolating sequences with LTF tone values. The LTF tone values may cover at least a portion of bandwidth of a first size, with each of the LTF tone values repeated for different subcarriers. The phases of tones of the LTF sequence may be rotated per bandwidth of the first size and certain tones of the LTF sequence may have a stream of values at pilot locations. For example, the phases of tones of the LTF sequence may be rotated in an effort to reduce PAPR during a transmission of the LTF sequence.

公开(公告)号：US10090982B2

公开(公告)日：2018-10-02

申请号：US14473222

申请日：2014-08-29

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Simone Merlin ,  Sameer Vermani ,  Hemanth Sampath

IPC: H04L5/00 ,  H04B7/06 ,  H04L1/00 ,  H04B7/0452 ,  H04W72/04 ,  H04W88/08

Abstract: Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system.

公开(公告)号：US10021554B2

公开(公告)日：2018-07-10

申请号：US14542433

申请日：2014-11-14

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  George Cherian ,  Alireza Raissinia ,  Hemanth Sampath

IPC: H04W8/00 ,  H04W76/14 ,  H04W4/02 ,  H04W76/23 ,  H04L29/06 ,  H04L29/08 ,  H04W76/02

CPC classification number: H04W8/005 ,  H04L67/16 ,  H04L69/28 ,  H04W4/023 ,  H04W76/14

Abstract: Systems and methods of wireless communication are described. One method includes transmitting an indication of a time window for determining a range for wireless communication between a first device and a second device. The method further includes determining the range between the first device and the second device at the indicated time window.

公开(公告)号：US20180063823A1

公开(公告)日：2018-03-01

申请号：US15806041

申请日：2017-11-07

Applicant: QUALCOMM Incorporated

Inventor： Hemanth Sampath ,  Bin Tian ,  Rahul Tandra ,  Gwendolyn Denise Barriac ,  Yan Zhou ,  Sameer Vermani ,  Simone Merlin

IPC: H04W72/04 ,  H04W72/08 ,  H04W16/14 ,  H04W74/08 ,  H04W16/10 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W72/042 ,  H04W16/10 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/082 ,  H04W74/0816 ,  H04W74/085 ,  H04W84/12 ,  H04W88/08

Abstract: Systems, methods, and devices for transmitting data are described herein. In some aspects, a method comprises generating a first message. The first message may comprise an allocation of a first station to a first frequency channel and a second station to a second frequency channel. The method further comprises transmitting the first message over the first frequency channel and the second frequency channel. The method further comprises transmitting, after transmission of the first message, a second message to the first station using the first frequency channel. The method further comprises transmitting, after transmission of the first message, a third message to the second station using the second frequency channel.

公开(公告)号：US09860851B2

公开(公告)日：2018-01-02

申请号：US13782866

申请日：2013-03-01

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Gwendolyn Denise Barriac ,  Simone Merlin ,  Sameer Vermani ,  Rahul Tandra ,  Bin Tian ,  Hemanth Sampath ,  Vincent Knowles Jones, IV

IPC: H04W4/00 ,  H04W52/24 ,  H04W16/10

CPC classification number: H04W52/243 ,  H04W16/10 ,  H04W84/12

Abstract: An apparatus and method for managing interference in a transmission medium are disclosed. A apparatus and method may be used to detect a condition experienced by only one of first and second wireless nodes, and modify an operational parameter of one of the first and second wireless nodes, if the condition is detected, such that both the first and second wireless nodes experience the condition or neither the first and second wireless nodes experience the condition.