公开(公告)号：US20150333812A1

公开(公告)日：2015-11-19

申请号：US14805773

申请日：2015-07-22

Applicant: QUALCOMM Incorporated

Inventor： Gregory Breit ,  Santosh Abraham ,  Sameer Vermani ,  Hemanth Sampath ,  Vincent Knowles Jones, IV

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

CPC classification number: H04B7/0626 ,  H04B7/0413 ,  H04L1/0027 ,  H04L1/003 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

Abstract: Certain aspects of the present disclosure relate to techniques for achieving adaptive channel state information (CSI) feedback rate in multi-user communication systems. A rate by which CSI feedback can be transmitted from each user station of a wireless system to a serving access point may be adjusted based on evolution of a channel between that user station and the access point.

Abstract translation: 本公开的某些方面涉及用于在多用户通信系统中实现自适应信道状态信息（CSI）反馈速率的技术。 基于无线系统的每个用户站向服务接入点发送CSI反馈的速率可以基于该用户站与接入点之间的信道的演进来调整。

公开(公告)号：US20150304148A1

公开(公告)日：2015-10-22

申请号：US14258627

申请日：2014-04-22

Applicant: Qualcomm Incorporated

Inventor： Sameer Vermani ,  Santosh Paul Abraham ,  Vincent Knowles Jones, IV ,  Stephen Jay Shellhammer ,  Didier Johannes Richard Van Nee ,  Rahul Tandra ,  Albert Van Zelst

IPC: H04L27/26 ,  H04W16/14

CPC classification number: H04L27/2649 ,  H04L5/0048 ,  H04L27/0006 ,  H04L27/2613 ,  H04L27/2634 ,  H04L27/2666 ,  H04W16/14

Abstract: Methods, systems, and/or devices are provided that permit data transmissions over unused television channels. A method operational in a receiver device, includes monitoring one or more repurposed channels within a television broadcast frequency spectrum for data waveforms, wherein waveforms of different bandwidths coexist within the one or more repurposed channels, and at least a larger waveform has a first bandwidth larger than a channel bandwidth for each repurposed channel. The method also includes receiving a waveform over a repurposed channel from among the one or more repurposed channels, wherein the received waveform has a second bandwidth smaller than the channel bandwidth. The method further includes processing the received waveform by applying a downclocking factor to a clock of the receiver device that causes the receiver device to process the received waveform according to the second bandwidth to obtain a data payload from the received waveform.

Abstract translation: 提供允许在未使用的电视频道上进行数据传输的方法，系统和/或设备。 一种在接收机设备中操作的方法，包括监测用于数据波形的电视广播频谱内的一个或多个重用信道，其中不同带宽的波形在一个或多个重用信道中共存，并且至少较大的波形具有较大的第一带宽 比每个重用通道的通道带宽。 该方法还包括从一个或多个重新利用的信道中的经重用信道接收波形，其中所接收的波形具有小于信道带宽的第二带宽。 该方法还包括通过对接收机设备的时钟施加降频因子来处理所接收的波形，所述时钟使得接收机设备根据第二带宽处理接收到的波形，以从接收到的波形获得数据有效载荷。

公开(公告)号：US20150078368A1

公开(公告)日：2015-03-19

申请号：US14559531

申请日：2014-12-03

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Lin Yang ,  Hemanth Sampath ,  Vincent Knowles Jones, IV ,  Didier Johannes Richard Van Nee

IPC: H04W28/06 ,  H04L27/26

CPC classification number: H04W28/065 ,  H04L27/0012 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/345 ,  H04W84/12

Abstract: Certain aspects of the present disclosure present a technique for enabling a receiver to detect mode of transmission of a signal based on a common field transmitted to all the receivers. The proposed technique includes frame structure in which information about the transmission mode is transmitted in a first portion of a SIG field to all the receivers.

Abstract translation: 本公开的某些方面提供了一种用于使接收机能够基于发送到所有接收机的公共字段来检测信号的传输模式的技术。 所提出的技术包括帧结构，其中关于传输模式的信息在SIG字段的第一部分中发送到所有接收机。

公开(公告)号：US20150003378A1

公开(公告)日：2015-01-01

申请号：US14468994

申请日：2014-08-26

Applicant: QUALCOMM Incorporated

Inventor： Vincent Knowles Jones, IV ,  Sameer Vermani ,  Simone Merlin ,  Hemanth Sampath

IPC: H04W72/08 ,  H04W16/14

CPC classification number: H04W72/082 ,  H04W16/14 ,  H04W48/16 ,  H04W84/12 ,  H04W84/18

Abstract: Certain aspects of the present disclosure provide methods and apparatus for the coexistence of 1 MHz and 2 MHz operation modes within a wireless communication system in accordance with IEEE 802.11ah, for example. One example method generally includes scanning a plurality of channel pairs, wherein each of the channel pairs comprises a first channel having a first channel designation and a second channel having a second channel designation; determining, based on the scan, a set of open channels from the plurality of channel pairs in which no other apparatus is operating; selecting a primary channel based on the determination; and transmitting using the selected primary channel. The selection of the primary channel involves channel selection rules disclosed herein.

Abstract translation: 本公开的某些方面提供了例如根据IEEE 802.11ah在无线通信系统内共存1MHz和2MHz操作模式的方法和装置。 一个示例性方法通常包括扫描多个信道对，其中每个信道对包括具有第一信道指定的第一信道和具有第二信道指定的第二信道; 基于扫描确定来自多个信道对的一组开放信道，其中没有其他装置正在其中操作; 基于确定选择主要频道; 并使用所选择的主信道进行发送。 主要信道的选择涉及这里公开的信道选择规则。

公开(公告)号：US20140254389A1

公开(公告)日：2014-09-11

申请号：US13785497

申请日：2013-03-05

Applicant: QUALCOMM INCORPORATED

Inventor： Didier Johannes Richard Van Nee ,  Santosh Vasudev Anikhindi ,  Vincent Knowles Jones, IV

IPC: H04L12/26

CPC classification number: H04L43/12 ,  H04B7/0452 ,  H04W24/08

Abstract: A method for multi-user multiple-input and multiple-output (MU-MIMO) sniffing by an electronic device is described. The method includes detecting multiple client second control fields concurrently. The method also includes detecting multiple client data fields concurrently. The method additionally includes obtaining data based on the multiple client data fields.

Abstract translation: 描述了一种用于电子设备的多用户多输入和多输出（MU-MIMO）嗅探的方法。 该方法包括同时检测多个客户端第二控制字段。 该方法还包括同时检测多个客户端数据字段。 该方法另外包括基于多个客户端数据字段获得数据。

公开(公告)号：US11811525B2

公开(公告)日：2023-11-07

申请号：US17251572

申请日：2018-07-24

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Pavankumar Veerashetty ,  Vincent Knowles Jones, IV ,  Srinivas Katar ,  Jian Tao ,  Rahul Jammula

IPC: H04L1/00 ,  H04L47/25 ,  H04W28/02

CPC classification number: H04L1/0003 ,  H04L47/25 ,  H04W28/0289 ,  H04W28/0273

Abstract: The present disclosure provides techniques for rate adaptation under congestion and latency constraints. The approaches described herein focus on aspects of latency, reliability, and power consumption instead of the traditional aspect of throughput. In an example, a method for rate adaptation is disclosed. The method may include determining whether to transmit a new packet or a retry packet. The method may also include reducing a maximum rate for a rate search in response to determining to transmit the retry packet. The method may further include transmitting the retry packet based on the reduced maximum rate.

公开(公告)号：US11637723B2

公开(公告)日：2023-04-25

申请号：US17097812

申请日：2020-11-13

Applicant: QUALCOMM Incorporated

Inventor： Lin Yang ,  Bin Tian ,  Jialing Li Chen ,  Louay Jalloul ,  Vincent Knowles Jones, IV ,  Ning Zhang ,  Chi-Lin Su ,  Ahmad Abdulrahman Mohammed

IPC: H04L25/02 ,  H04L27/26 ,  H04W72/04 ,  H04L5/00 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communication are described. In some systems (e.g., Wi-Fi systems), a transmitting device such as an access point (AP) or mobile station (STA), may identify a number of spatial streams for a data transmission that is less than a number of transmit antennas, and may transmit a packet over a channel. In a first implementation, the packet may be formatted in a multi-user frame format, with a number of long training field (LTF) symbols equal to the number of transmit antennas. In a second implementation, the packet may be a null data packet (NDP), and the device may transmit a separate data packet. In a third implementation, the packet may be formatted in single-user frame format with a modified LTF. A receiving device may receive the packet, and may perform channel estimation and power amplifier (PA) distortion cancellation based on the received packet.

公开(公告)号：US11546938B2

公开(公告)日：2023-01-03

申请号：US16988624

申请日：2020-08-08

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Sameer Vermani ,  Lin Yang ,  Bin Tian ,  Vincent Knowles Jones, IV ,  Youhan Kim

IPC: H04W74/00 ,  H04L5/00 ,  H04W72/04 ,  H04L69/18 ,  H04L69/22 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for including signaling regarding enhanced features of new wireless communication protocols. The signaling may be included in various portions of a physical layer preamble of a wireless transmission. In some implementations, the physical layer preamble may be used to indicate puncturing of subbands or content channels that may carry further signaling in accordance with preamble signaling designs of this disclosure. The physical layer preamble signaling be parallelized for different subchannels of a wireless channel that consists of multiple subchannels. Some implementations of the physical layer preambles may be used to multiplex different types of wireless local area network communications into different subsets of the plurality of subchannels of the wireless channel.

公开(公告)号：US11121822B2

公开(公告)日：2021-09-14

申请号：US16668769

申请日：2019-10-30

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Tao-Fei Samuel Ng ,  Youhan Kim ,  Bin Tian ,  Jialing Li Chen ,  Stephen Jay Shellhammer ,  Vincent Knowles Jones, IV

IPC: H04L1/18 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a hybrid automatic repeat request (HARQ) protocol in a wireless local area network (WLAN). A first WLAN device may generate a first HARQ packet for transmission to a second WLAN device. The first WLAN device may determine a first basic service set (BSS) indicator and a second BSS indicator for a BSS associated with the first WLAN device and the second WLAN device. The first BSS indicator and the second BSS indicator may be indicative of a BSS identifier (BSSID) of the BSS. The first WLAN device may output the first HARQ packet for transmission to the second WLAN device. The first HARQ packet may include the first BSS indicator and the second BSS indicator in one or more fields of a physical layer (PHY) header of the first HARQ packet.

公开(公告)号：US20210045117A1

公开(公告)日：2021-02-11

申请号：US16988624

申请日：2020-08-08

Applicant: QUALCOMM Incorporated

Inventor： Jialing Li Chen ,  Sameer Vermani ,  Lin Yang ,  Bin Tian ,  Vincent Knowles Jones, IV ,  Youhan Kim

IPC: H04W72/04 ,  H04L29/06

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for including signaling regarding enhanced features of new wireless communication protocols. The signaling may be included in various portions of a physical layer preamble of a wireless transmission. In some implementations, the physical layer preamble may be used to indicate puncturing of subbands or content channels that may carry further signaling in accordance with preamble signaling designs of this disclosure. The physical layer preamble signaling be parallelized for different subchannels of a wireless channel that consists of multiple subchannels. Some implementations of the physical layer preambles may be used to multiplex different types of wireless local area network communications into different subsets of the plurality of subchannels of the wireless channel.