公开(公告)号：US20210297209A1

公开(公告)日：2021-09-23

申请号：US17209132

申请日：2021-03-22

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Sameer Vermani ,  Jialing Li Chen

IPC: H04L5/00 ,  H04W72/04

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for generating or receiving a wireless packet that includes a first preamble based on a first generation of a wireless communication protocol and a second preamble based on a second generation of the wireless communication protocol. The wireless packet may include the first preamble in a first subchannel of a wireless channel and the second preamble in a second subchannel of the wireless channel. Thus, the wireless packet may concurrently include communication to or from different types of wireless stations that support the different generations of a wireless communication protocol.

公开(公告)号：US11121806B2

公开(公告)日：2021-09-14

申请号：US16562907

申请日：2019-09-06

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Dung Ngoc Doan ,  Bin Tian ,  Lin Yang ,  Sameer Vermani ,  Lochan Verma ,  Stephen Jay Shellhammer

IPC: H04L5/00 ,  H04L1/00 ,  H04B7/0417 ,  H04L1/18 ,  H04L27/26

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for low density parity check (LDPC)-based incremental redundancy (IR) hybrid automatic repeat request (HARQ) transmission processing. In one aspect, an apparatus for wireless communications is configured to generate a first packet using a LDPC encoding process. The apparatus is further configured to generate coded bits using a second LDPC encoding process if the first packet is not successfully decoded by a wireless device, generate a second packet including at least some of the coded bits generated using the second LDPC encoding process, and output the second packet for transmission.

公开(公告)号：US11108442B1

公开(公告)日：2021-08-31

申请号：US16506936

申请日：2019-07-09

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Lin Yang ,  Sameer Vermani ,  Lochan Verma

IPC: H04B7/04 ,  H04B7/0452 ,  H04L25/02 ,  H04B7/0417 ,  H04B17/12 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may determine that a channel is reciprocal and perform an implicit sounding process. During the implicit sounding process, the wireless device may estimate the uplink channel by measuring a first uplink multi-user multiple input multiple output (MU-MIMO) transmission. The wireless devices may then update the uplink channel estimation based by measuring a second MU-MIMO transmission that is received after a downlink transmission from the wireless device. Based on the updated uplink channel estimation, the wireless device may send a beamformed MU-MIMO transmission to a number of other wireless devices.

公开(公告)号：US10785706B2

公开(公告)日：2020-09-22

申请号：US16159313

申请日：2018-10-12

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W48/10 ,  H04W8/00 ,  H04W8/24 ,  H04W72/04 ,  H04W48/20 ,  H04W48/08 ,  H04W84/12

Abstract: Systems, devices, apparatus and methods, including computer programs encoded on storage media, are disclosed for an access point (AP) in a basic service set (BSS) to advertise or indicate 320 MHz bandwidth operation and frequency segment composition in the 320 MHz bandwidth to one or more stations (STAs) in a Wireless Local Area Network (WLAN). Also, a WLAN device may advertise or indicate its 320 MHz bandwidth support capability to other WLAN devices in the WLAN.

公开(公告)号：US10764877B2

公开(公告)日：2020-09-01

申请号：US15587156

申请日：2017-05-04

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Sameer Vermani ,  Bin Tian ,  Lin Yang ,  Raja Banerjea ,  Alfred Asterjadhi

IPC: H04W52/24 ,  H04L5/00 ,  H04W52/14 ,  H04W74/00 ,  H04W72/04 ,  H04W74/04 ,  H04L27/26 ,  H04W16/14 ,  H04W84/12

Abstract: The present disclosure provides various aspects related to techniques for generating trigger frames, at an AP, that reduce the overhead associated with triggering an uplink transmission from the STA. In some examples, the STA may also calculate its transmit power by decoding a spatial reuse subfield of the trigger frame from the AP and identifying downlink pathloss measurements of the trigger frame. Accordingly, the STA may identify acceptable interference level of the AP and calculate a transmit power in order to minimize interference at the AP. In some aspects, the STA may transmit its uplink packets to a different AP on one or more punctured channels at the calculated transmit power of the STA.

公开(公告)号：US10608720B2

公开(公告)日：2020-03-31

申请号：US15816468

申请日：2017-11-17

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Sameer Vermani ,  Bin Tian

IPC: H04B7/00 ,  H04B7/06 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04B7/0452 ,  H04W40/24 ,  H04B7/0413 ,  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：US20200076551A1

公开(公告)日：2020-03-05

申请号：US16559571

申请日：2019-09-03

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Alfred Asterjadhi ,  Abhishek Pramod Patil ,  Sameer Vermani ,  Bin Tian ,  Stephen Jay Shellhammer ,  Lochan Verma ,  Lin Yang ,  Jialing Li Chen

IPC: H04L5/00 ,  H04W74/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described for coordination between multiple access points (APs) for communications within a transmission opportunity (TxOP). A first AP may gain channel access for a TxOP, and may coordinate with at least a second AP to allow both the first AP and the second AP to transmit and receive wireless communications during the TxOP. The first AP, upon gaining channel access following a successful contention-based channel access procedure, may initiate a scheduling phase with the second AP to schedule of resources within the TxOP for the first and second APs. The first AP may initiate a multi-AP coordinated transmission phase following the scheduling phase, during which both the first AP and second AP may communicate with one or more associated STAs.

公开(公告)号：US10554557B2

公开(公告)日：2020-02-04

申请号：US15183703

申请日：2016-06-15

Applicant: QUALCOMM Incorporated

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

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

Abstract: Methods and apparatus for acknowledgment of multiple user uplink are provided. In one aspect, a method of wireless communication includes receiving a first wireless message from a first station at least partially concurrently with receiving a second wireless message from a second station, generating a first acknowledgment message in response to receiving the first wireless message, generating a second acknowledgement message in response to receiving the second wireless message, and transmitting the first acknowledgment message to the first station at least partially concurrently with transmitting the second acknowledgement message to the second station.

公开(公告)号：US10439773B2

公开(公告)日：2019-10-08

申请号：US14250276

申请日：2014-04-10

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Rahul Tandra ,  Simone Merlin ,  Hemanth Sampath

IPC: H04W72/00 ,  H04L5/00 ,  H04L27/26 ,  H04W56/00

Abstract: Systems, methods, and devices for wireless communication are disclosed herein. One aspect of the disclosure provides a method of transmitting to two or more wireless communication devices. The method includes transmitting a first section of a preamble according to a first format, the first section of the preamble containing information informing devices compatible with the first format to defer to the transmission, transmitting a second section of the preamble according to a second format, the second section of the preamble containing tone allocation information, the tone allocation information identifying two or more wireless communication devices; and transmitting data to the two or more wireless communication devices simultaneously, the data contained on two or more sub-bands.

公开(公告)号：US10321451B2

公开(公告)日：2019-06-11

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 ,  H04W16/14 ,  H04W74/08 ,  H04W16/10 ,  H04W72/08 ,  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.