公开(公告)号：US20150180560A1

公开(公告)日：2015-06-25

申请号：US14637309

申请日：2015-03-03

Applicant: QUALCOMM Incorporated

Inventor： Didier Johannes Richard Van Nee ,  Albert Van Zelst ,  Sameer Vermani ,  Vincent Knowles Jones, IV ,  Simone Merlin

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0452 ,  H04B7/0434 ,  H04B7/0615 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0697

Abstract: A base station for communicating with multiple groups of wireless communication devices is described. The base station includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The base station determines a number of wireless communication devices. The base station also splits the number of wireless communication devices into groups. The base station further determines a precoding matrix for each group. The base station additionally transmits a beamformed signal to each group using the precoding matrix for each group.

Abstract translation: 描述了用于与多组无线通信设备进行通信的基站。 基站包括存储在与处理器电子通信的存储器中的处理器和可执行指令。 基站确定多个无线通信设备。 基站还将无线通信设备的数量分组。 基站进一步确定每个组的预编码矩阵。 基站使用每个组的预编码矩阵另外向每个组发送波束形成的信号。

公开(公告)号：US20140126471A1

公开(公告)日：2014-05-08

申请号：US14064762

申请日：2013-10-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W40/12 ,  H04W24/08

CPC classification number: H04W24/08 ,  H04W40/16 ,  H04W48/16 ,  Y02D70/142 ,  Y02D70/34

Abstract: Systems and methods for tuning media access parameters are disclosed. In one aspect an access point includes a receiver configured to receive at least one message from a second access point. The access point further includes a processor configured to coordinate with the second access point to select a value of a medium access parameter comprising one of a carrier sense threshold and an energy detection threshold for a wireless station. The processor may generate a message identifying the value of the medium access parameter and may further comprise a transmitter connected to the processor and configured to transmit the message to the station.

Abstract translation: 公开了用于调谐媒体访问参数的系统和方法。 在一个方面，接入点包括被配置为从第二接入点接收至少一个消息的接收机。 接入点还包括被配置为与第二接入点协调以选择包括无线站的载波侦听阈值和能量检测阈值之一的介质访问参数的值的处理器。 处理器可以生成识别介质访问参数的值的消息，并且还可以包括连接到处理器并被配置为将消息发送到站的发射器。

公开(公告)号：US20230156781A1

公开(公告)日：2023-05-18

申请号：US18149123

申请日：2023-01-02

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/00 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/0446 ,  H04L69/18 ,  H04L69/22 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W74/004 ,  H04L5/0053 ,  H04W72/0453 ,  H04W72/0446 ,  H04L5/0094 ,  H04L69/18 ,  H04L69/22 ,  H04W72/21 ,  H04W72/23 ,  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：US20210289500A1

公开(公告)日：2021-09-16

申请号：US17196247

申请日：2021-03-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W52/36

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for physical layer (PHY) packet design for power spectral density (PSD) limits. In some implementations, a wireless communication device generates a plurality of PHY convergence protocol (PLCP) protocol data unit (PPDU) duplicates configured for transmission over a selected bandwidth, and transmits each PPDU duplicate of the plurality of PPDU duplicates on a corresponding frequency subband of a plurality of different frequency subbands. In some other implementations, the wireless communication device generates a PPDU for transmission over a set of duplicated resource units (RUs) allocated to the wireless communication device, and transmits the PPDU over the allocated set of duplicated RUs.

公开(公告)号：US20210067383A1

公开(公告)日：2021-03-04

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

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：US10524161B2

公开(公告)日：2019-12-31

申请号：US14464019

申请日：2014-08-20

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Alireza Raissinia ,  James Gardner ,  Sumeet Kumar ,  Vincent Knowles Jones, IV

IPC: H04W28/04 ,  H04W24/02 ,  H04W28/02

Abstract: Methods, systems, and devices are described for wireless communication at a wireless communication device. A wireless communication device may receive a data frame and use it to estimate a residual channel length (RCL). The device may then modify a finite impulse response (FIR) filter based on the estimated RCL. For example, the device may add additional taps to the FIR filter. The device may continue to adjust the FIR filter until the RCL is at or near zero. In some cases, the wireless communication device may send an indication to the transmitting device to adjust an FIR filter based on the estimated RCL. In some cases, the length of a guard interval may also be adjusted based on the estimated RCL.

公开(公告)号：US20190271775A1

公开(公告)日：2019-09-05

申请号：US15983065

申请日：2018-05-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Youngsin Lee ,  Ning Zhang ,  Erik Lindskog ,  Vincent Knowles Jones, IV

IPC: G01S13/56 ,  H04W64/00 ,  H04W52/02 ,  H04W4/38 ,  G01S13/00

Abstract: This disclosure provides systems, methods and apparatuses for detecting motion based on one or more wireless signals. In some implementations, a receiving device may receive a first frame and a second frame from a transmitting device, may determine a first channel impulse response (CIR) based on the first frame, may determine a second CIR based on the second frame, may determine a difference between a shape of the first CIR and a shape of the second CIR, and may detect motion based on the determined difference.

公开(公告)号：US09722826B2

公开(公告)日：2017-08-01

申请号：US14542464

申请日：2014-11-14

Applicant: QUALCOMM Incorporated

Inventor： Qinghai Gao ,  Xiaolong Huang ,  Vincent Knowles Jones, IV ,  Srinivas Katar ,  James Simon Cho

IPC: H04L27/00 ,  H04L1/16 ,  H04L1/00

CPC classification number: H04L27/0008 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/1614

Abstract: Methods, systems, and devices are described for wireless communications. More particularly, the described features relate to techniques for adjusting a modulation and coding scheme (MCS) to account for different airtime utilizations (available airtime actually utilized by a device for transmissions) resulting from different MCSs. In one example, a method for wireless communication may involve: determining a media access control (MAC) efficiency for a station of a plurality of stations based at least in part on a real-time multi-user (MU) physical protocol data unit (PPDU) length, a real-time physical layer service data unit (PSDU) length of each of the plurality of stations, and a modulation and coding scheme (MCS) of the station; adjusting a goodput estimate of the station using the MAC efficiency; and, adjusting the MCS of the station using the adjusted goodput estimate.

公开(公告)号：US09577728B1

公开(公告)日：2017-02-21

申请号：US14866224

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Didier Johannes Richard van Nee ,  Ahmed Ragab Elsherif ,  Albert van Zelst ,  Qinghai Gao ,  Vincent Knowles Jones, IV

IPC: H04B7/04 ,  H04L12/26

CPC classification number: H04B7/0452 ,  H04B7/0658 ,  H04L1/0015 ,  H04L1/0019 ,  H04L43/16 ,  H04W16/28

Abstract: Methods, systems, and devices are described for wireless communication. An access point (AP) may determine a single user bias for a wireless device based on a feedback signal-to-noise ratio (SNR) and an SNR based on a modulation and coding scheme (MCS). The AP may also determine a multi-user SNR for the wireless device based on the feedback SNR, the single user bias, a multi user loss, and a group bias. The AP may then select an updated MCS based on the multi-user SNR. In some cases, the AP may transmit a reference signal to the wireless device and receive a compressed beamforming feedback report from the wireless device based on the reference signal. The feedback SNR may be based on the compressed beamforming feedback report. The AP may also maintain a blacklist of groups with channel correlation that satisfies a threshold, and refrain from scheduling those groups together.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 接入点（AP）可以基于反馈信噪比（SNR）和基于调制和编码方案（MCS）的SNR来确定无线设备的单个用户偏倚。 AP还可以基于反馈SNR，单用户偏好，多用户丢失和组偏差来确定无线设备的多用户SNR。 然后，AP可以基于多用户SNR来选择更新的MCS。 在一些情况下，AP可以向无线设备发送参考信号，并且基于参考信号从无线设备接收压缩的波束形成反馈报告。 反馈SNR可以基于压缩波束成形反馈报告。 AP还可以维护具有满足阈值的信道相关性的组的黑名单，并且避免将这些组一起调度。

公开(公告)号：US20160353506A1

公开(公告)日：2016-12-01

申请号：US15094432

申请日：2016-04-08

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Anil Satyanarayana Rao ,  Navid Ehsan ,  Pradeep Kumar Yenganti ,  Alireza Raissinia ,  Vincent Knowles Jones, IV

IPC: H04W76/02 ,  H04W76/04 ,  H04W68/00

CPC classification number: H04W76/15 ,  H04W52/0225 ,  H04W52/028 ,  H04W68/005 ,  H04W76/12 ,  H04W76/19 ,  H04W76/34 ,  H04W88/16 ,  H04W88/182 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/23

Abstract: Methods, systems, and devices are described for wireless communication. A device with multiple radios may establish a wireless local area network (WLAN) connection with a multi-radio gateway (i.e., a multiPHY gateway) and a wide area network (WAN) connection with a base station. The multi-radio device may receive a proxy capability indication from the multi-radio gateway and may transmit connection information relating to the second wireless connection. The multi-radio device may then establish a tunnel to the base station utilizing a proxy entity within the multi-radio gateway and close a physical (PHY) connection of the second wireless connection in order to save power. The multi-radio gateway may receive messages (e.g., paging, broadcast, or multicast messages) from the base station on behalf of the multi-radio device using the proxy entity, and tunnel the messages through to the multi-radio device using the WLAN wireless connection.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 具有多个无线电设备的设备可以建立与多无线网关（即，多PHY网关）和与基站的广域网（WAN）连接的无线局域网（WLAN）连接。 多无线电设备可以从多无线电网关接收代理能力指示，并且可以发送与第二无线连接有关的连接信息。 然后，多无线电设备可以利用多无线电网关内的代理实体建立到基站的隧道，并关闭第二无线连接的物理（PHY）连接，以便节省电力。 多无线电网关可以代表使用代理实体的多无线电设备从基站接收消息（例如，寻呼，广播或多播消息），并且使用WLAN来将消息隧道传送到多无线电设备 无线连接。