公开(公告)号：US10200115B2

公开(公告)日：2019-02-05

申请号：US15826292

申请日：2017-11-29

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/26 ,  H04J1/02 ,  H04L5/00 ,  H04W52/02 ,  H04J1/14 ,  H04L1/18 ,  H04L1/16 ,  H04W74/02 ,  H04W74/08 ,  H04L1/00 ,  H04W74/00

Abstract: Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging, at an access point, at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving a second communication, at least partially concurrent with the first communication, on a second set of wireless frequencies from the second wireless device. The method further includes transmitting at least one acknowledgment of the first and second communication. The first set and the second set are mutually exclusive subsets of a set of wireless frequencies available for use by both the first and second wireless device.

公开(公告)号：US20180234135A1

公开(公告)日：2018-08-16

申请号：US15872294

申请日：2018-01-16

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian

IPC: H04B7/024 ,  H04B7/06 ,  H04B7/0452 ,  H04W72/04

CPC classification number: H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0643 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0091 ,  H04W16/28 ,  H04W72/0426 ,  H04W72/0433 ,  H04W72/046 ,  H04W84/12

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for group formation and sounding for distributed multi-user multiple input multiple output (MU-MIMO). Some implementations include a method of wireless communication. The method includes transmitting, from a first access point of a plurality of access points, an announcement frame for performing a beamforming procedure for a distributed transmission. The distributed transmission includes a transmission from the plurality of access points. The announcement frame includes at least one identifier of a user terminal in a different basic service set than a basic service set of the first access point. The method further includes transmitting a packet for measuring a channel. The method further includes receiving feedback information from the user terminal based on the packet for measuring the channel. The method further includes transmitting the distributed transmission using the beamforming procedure.

公开(公告)号：US10050750B2

公开(公告)日：2018-08-14

申请号：US14932892

申请日：2015-11-04

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Dung Ngoc Doan ,  Sameer Vermani

IPC: H04W28/06 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26

Abstract: A method of wirelessly communicating a packet can include generating, at a wireless device, a packet including a training field based on a training field tone plan. The method further includes populating training tones in the training field tone plan by duplicating tone positions from a base training field one or more times, and adding one or more additional sub-band direct current (DC) tones or edge tones. The method further includes transmitting the packet.

公开(公告)号：US20180206192A1

公开(公告)日：2018-07-19

申请号：US15860883

申请日：2018-01-03

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian

IPC: H04W52/02 ,  H04L27/26

CPC classification number: H04W52/0235 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2627 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: Methods, systems, and devices for wireless communication are described. The method may include transmitting, at an access point (AP), a wakeup waveform comprising a first preamble portion occupying a first bandwidth, the first preamble portion comprising six (6) or more orthogonal frequency division multiplexing (OFDM) symbols, the sixth one of which is un-rotated binary phase shift keying (BPSK) modulated and transmitting a second wakeup portion of the wakeup waveform occupying a second bandwidth that is less than the first bandwidth. The method may further include receiving a preamble, the preamble occupying a first bandwidth, identifying an un-rotated BPSK modulated symbol following a first preamble portion in the received preamble, and detecting that the preamble is associated with a wakeup waveform based at least in part on the identified un-rotated BPSK modulated symbol.

公开(公告)号：US20180167249A1

公开(公告)日：2018-06-14

申请号：US15882928

申请日：2018-01-29

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian ,  Rahul Tandra ,  Dung Ngoc Doan

IPC: H04L27/26 ,  H04L25/02 ,  H04B17/309 ,  H04L1/06 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04B17/309 ,  H04L1/0625 ,  H04L1/0681 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2607 ,  H04L27/2611

Abstract: Methods, devices, and computer program products for improving training field design in packets with increased symbol durations are disclosed. In one aspect, a method of transmitting a packet on a wireless communication network is disclosed. The method includes transmitting a preamble of the packet over one or more space-time-streams, the preamble including one or more training fields configured to be used for channel estimation, the one or more training fields each comprising one or more symbols of a first symbol duration. The method further includes transmitting a payload of the packet over the one or more space-time-streams, the payload comprising one or more symbols of a second symbol duration, the second symbol duration greater than the first symbol duration.

公开(公告)号：US20180145733A1

公开(公告)日：2018-05-24

申请号：US15816468

申请日：2017-11-17

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Sameer Vermani ,  Bin Tian

IPC: H04B7/06 ,  H04B7/0452 ,  H04W40/24

CPC classification number: H04B7/0617 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/0025 ,  H04L5/0091 ,  H04L27/261 ,  H04W40/244 ,  H04W84/12 ,  H04W88/08

Abstract: Various aspects of the disclosure relate to communication using a data unit that includes at least one mid-amble. In some aspects, an apparatus may use mid-ambles for mobility scenarios (e.g., when the apparatus is moving outdoors). The disclosure relates in some aspects to signaling associated with the use of mid-ambles. In some aspects, an apparatus may signal whether it supports sending and/or receiving data with mid-ambles. In some aspects, an apparatus may signal whether a particular data unit includes at least one mid-amble. In some aspects, an apparatus may signal an indication of at least one mid-amble update interval. In some aspects, an apparatus may signal whether a mid-amble includes a short training field.

公开(公告)号：US09949262B2

公开(公告)日：2018-04-17

申请号：US14817091

申请日：2015-08-03

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Lin Yang ,  Sameer Vermani ,  Rahul Tandra ,  Bin Tian

IPC: H04W72/04 ,  H03M13/11 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04W72/0453 ,  H03M13/1102 ,  H04L1/0057 ,  H04L1/0071 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2602

Abstract: Methods and apparatuses for providing wireless messages according to various tone plans can include a system configured to generate a message according to a 2048-tone plan having 1960 data tones. The 2048-tone plan includes two identical 1024-tone plans each having 980 data tones. The system can further perform segment parsing to divide data into two data portions, each portion for transmission over one of two 80 MHz bandwidths, according to one of the two identical 1024-tone plans. The system can further perform low density parity check (LDPC) tone mapping separately on each of the two data portions. The system can further provide the message for transmission over a 160 MHz bandwidth including the two 80 MHz bandwidths.

公开(公告)号：US09854580B2

公开(公告)日：2017-12-26

申请号：US14845230

申请日：2015-09-03

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Jialing Li Chen ,  Sameer Vermani

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

CPC classification number: H04W72/044 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0039 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0094 ,  H04L27/2601 ,  H04W72/00 ,  H04W84/12

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a wireless device. The wireless device determines a first subset of resource units (RUs) of a set of RUs that extends across a bandwidth of a channel in a transmission time period, the first subset of RUs including less RUs than the set of RUs, each RU of the set of RUs including at least 26 tones. The wireless device communicates at least one of data or control information in the first subset of the RUs.

公开(公告)号：US09839025B2

公开(公告)日：2017-12-05

申请号：US15203655

申请日：2016-07-06

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W16/10 ,  H04W72/08 ,  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：US20170265240A1

公开(公告)日：2017-09-14

申请号：US15454749

申请日：2017-03-09

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Lin Yang ,  Sameer Vermani ,  Bin Tian

IPC: H04W76/02 ,  H04W72/04

CPC classification number: H04W76/15 ,  H04L1/0042 ,  H04L1/04 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2608 ,  H04W72/0446

Abstract: Methods and apparatuses for wireless communication according to various tone plans are provided. In one aspect, a method includes determining a first device communicates data within a 40 MHz, 80 MHz, or 160 MHz first frequency range and a second device communicates data within a 20 MHz second frequency range of the first frequency range, selecting first communication parameters for the first device and second communication parameters for the second device based on the determination; and communicating first data with the first device according to the first communication parameters at least partially simultaneously with communicating second data with the second device according to the second communication parameters.