公开(公告)号：WO2019036262A1

公开(公告)日：2019-02-21

申请号：PCT/US2018/045913

申请日：2018-08-09

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Jialing Li ,  YANG, Lin ,  TIAN, Bin ,  ZHANG, Ning ,  JONES IV, Vincent Knowles ,  VAN NEE, Didier Johannes Richard ,  JALLOUL, Louay ,  MOHAMMED, Ahmad Abdulrahman

IPC: H04B1/10 ,  H04B1/403

Abstract: Apparatuses and methods for correcting a distorted signal at a receiver device during wireless local area network (WLAN) communications are disclosed. The apparatuses and methods include receiving, by a receiver device in a WLAN, a distorted signal corresponding to a data packet signal transmitted from a transmitter device, receiving, by the receiver device, one or more transmitter parameters corresponding to the transmission of the data packet signal, the one or more transmitter parameters including information to adjust the distorted signal, and adjusting, by the receiver device, the distorted signal to reconstruct the data packet signal based at least on the one or more transmitter parameters.

公开(公告)号：WO2017181046A2

公开(公告)日：2017-10-19

申请号：PCT/US2017/027681

申请日：2017-04-14

Applicant: QUALCOMM INCORPORATED

Inventor： CHENG, Chao ,  ZHANG, Ning ,  KIM, Youhan ,  CHEN, Chin-Hung

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04W72/10

CPC classification number: H04W72/0446 ,  H04B7/0452 ,  H04B17/309 ,  H04B17/318 ,  H04L1/0002 ,  H04L1/0015 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0094 ,  H04W28/0236 ,  H04W52/0216 ,  H04W52/245 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/144

Abstract: The disclosure provides for rate adaptation based on channel power tracking in wireless communications. An Access Point (AP) may measure a full-band channel quality information (CQI) for a plurality of wireless stations associated with the AP and allocate a sub-band resource unit from the plurality of sub-band resource units to a wireless station based on the full-band CQI. Aspects of the disclosure also include techniques for adjusting a data rate associated with the wireless station based on a channel power of the sub-band resource unit.

Abstract translation: 本公开提供了基于无线通信中的信道功率跟踪的速率自适应。 接入点（AP）可以测量与AP相关联的多个无线站的全带信道质量信息（CQI），并且将来自多个子带资源单元的子带资源单元分配给基于无线站 在全频带CQI上。 本公开的各方面还包括用于基于子带资源单元的信道功率来调整与无线站相关联的数据速率的技术。

公开(公告)号：WO2017172779A1

公开(公告)日：2017-10-05

申请号：PCT/US2017/024555

申请日：2017-03-28

Applicant: QUALCOMM INCORPORATED

Inventor： KIM, Beomsup ,  ZHANG, Ning ,  ZHANG, Xiaoxin ,  KIM, Youhan

IPC: H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may switch antenna array configurations during reception of a packet to determine channel characteristic information for the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration. In some cases, the AP may use multiple antenna array configurations to transmit training fields in the preamble of a packet. The AP may receive channel characteristic information for each of the antenna array configurations. The AP may use the channel characteristic information to select an antenna array configuration for use, and to determine a beamforming steering matrix for the selected antenna array configuration.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 接入点（AP）可以在接收分组期间切换天线阵列配置以确定天线阵列配置的信道特征信息。 AP可以使用信道特征信息来选择天线阵列配置以供使用，并且为所选天线阵列配置确定波束成形引导矩阵。 在一些情况下，AP可以使用多个天线阵列配置来在分组的前导码中发送训练字段。 AP可以接收每个天线阵列配置的信道特性信息。 AP可以使用信道特性信息来选择天线阵列配置以供使用，并且为所选择的天线阵列配置确定波束成形引导矩阵。

公开(公告)号：WO2017160809A1

公开(公告)日：2017-09-21

申请号：PCT/US2017/022266

申请日：2017-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Ning ,  ZHANG, Xiaoxin ,  KIM, Youhan ,  ALDANA, Carlos Horacio ,  KELLIHER, Patrick ,  LEE, Yen-Feng

IPC: G01S5/14

CPC classification number: G01S5/12 ,  G01S5/14 ,  G01S11/02 ,  G01S13/76 ,  H04W64/00

Abstract: This disclosure provides systems, methods and apparatuses for performing ranging operations between wireless devices. In some implementations, wireless devices can exchange ranging packets that include packet extensions containing a plurality of long training fields (LTFs). The wireless devices can use the LTFs in the ranging packets to obtain a plurality of round-trip time (RTT) values based on a single exchange of ranging packets. The wireless devices also can use the LTFs to estimate angle of arrival (AoA) and angle of departure (AoD) information of the exchanged ranging packets.

Abstract translation: 本公开提供了用于在无线设备之间执行测距操作的系统，方法和装置。 在一些实现中，无线设备可以交换包括包含多个长训练字段（LTF）的分组扩展的测距分组。 无线设备可以使用测距分组中的LTF来基于测距分组的单个交换获得多个往返时间（RTT）值。 无线设备还可以使用LTF来估计交换的测距分组的到达角（AoA）和出发角（AoD）信息。

公开(公告)号：WO2016175991A1

公开(公告)日：2016-11-03

申请号：PCT/US2016/026069

申请日：2016-04-05

Applicant: QUALCOMM INCORPORATED

Inventor： HIRSCH, Olaf Josef ,  FREDERIKS, Guido Robert ,  JIA, Zhanfeng ,  KIM, Youhan ,  LI, Yixiang ,  ZHANG, Ning

IPC: H04W72/04 ,  H04W72/08

CPC classification number: H04L5/1461 ,  H04B1/44 ,  H04W52/243 ,  H04W52/52 ,  H04W72/0446 ,  H04W72/0473 ,  H04W72/082

Abstract: A method and apparatus for concurrent wireless communications on multiple channels of the same frequency band. A wireless device determines when a first transceiver chain of the wireless device is to receive a first data signal. The wireless device then transmits a second data signal via a second transceiver chain of the wireless device based at least in part on the determination. The wireless device further suspends the transmission of the second data signal in response to the determination that the first transceiver chain is to receive the first data signal.

Abstract translation: 一种在相同频带的多个信道上进行并发无线通信的方法和装置。 无线设备确定无线设备的第一收发器链何时接收第一数据信号。 然后，无线设备至少部分地基于确定，经由无线设备的第二收发器链发送第二数据信号。 无线设备响应于第一收发器链将要接收第一数据信号的确定，进一步中止第二数据信号的传输。

公开(公告)号：WO2016094556A1

公开(公告)日：2016-06-16

申请号：PCT/US2015/064788

申请日：2015-12-09

Applicant: QUALCOMM INCORPORATED

Inventor： KIM, Youhan ,  JIA, Zhanfeng ,  KATAR, Srinivas ,  MALIK, Rahul ,  SUNDARARAJAN, Jay Kumar ,  MEYLAN, Arnaud ,  ZHANG, Ning ,  CHERIAN, George

IPC: H04W48/16 ,  H04W28/16

CPC classification number: H04W24/10 ,  H04W28/16 ,  H04W48/12 ,  H04W48/16 ,  H04W48/20

Abstract: Methods, apparatus, and computer-readable media for wireless communication may involve techniques for throughput estimation. An expected air time parameter may be used as a parameter for estimating throughput. The expected air time parameter may be indicative of an estimated air time fraction obtainable for communications using an access point (AP), for example, between a wireless station (STA) and the AP. Either the expected air time parameter or an estimated air time fraction determined (e.g., calculated) from the expected air time parameter may be transmitted from the AP to the STA (or other communication device) to allow the STA (or other communication device) to determine an estimated throughput for communications using the AP.

Abstract translation: 用于无线通信的方法，装置和计算机可读介质可以涉及用于吞吐量估计的技术。 可以使用预期的空中时间参数作为估计吞吐量的参数。 预期空中时间参数可以指示例如在无线站（STA）和AP之间使用接入点（AP）的通信可获得的估计空中时间分数。 可以从AP向STA（或其他通信设备）发送从预期空中时间参数确定（例如，计算）的预期空中时间参数或估计空中时间分数，以允许STA（或其他通信设备） 确定使用AP的通信的估计吞吐量。

公开(公告)号：WO2014043207A1

公开(公告)日：2014-03-20

申请号：PCT/US2013/059222

申请日：2013-09-11

Applicant: QUALCOMM INCORPORATED

Inventor： ALDANA, Carlos Horacio ,  ZHANG, Ning

IPC: G01S13/87

CPC classification number: G01S5/10 ,  G01S13/876

Abstract: According to embodiments, methods are presented to for determining precise location of a device by exchanging a plurality of messages with one or more devices (e.g., access points or mobile devices) in vicinity. Embodiments may calculate distance between the devices using round trip time that takes to transmit and receive signals to/from each of the devices. Using definitions that account for multiple input multiple output (MIMO) transmission, the embodiments determine precise location of a device.

Abstract translation: 根据实施例，呈现用于通过在附近与一个或多个设备（例如，接入点或移动设备）交换多个消息来确定设备的精确位置的方法。 实施例可以使用往返于每个设备发送和接收信号的往返时间来计算设备之间的距离。 使用考虑多输入多输出（MIMO）传输的定义，这些实施例确定设备的精确位置。

公开(公告)号：WO2014042892A1

公开(公告)日：2014-03-20

申请号：PCT/US2013/057347

申请日：2013-08-29

Applicant: QUALCOMM INCORPORATED

Inventor： DU, Shu ,  JIA, Zhanfeng ,  ZHANG, Ning ,  FREDERIKS, Guido Robert ,  JONES, Vincent Knowles IV ,  VERMANI, Sameer ,  CHEN, Chin-Hung ,  TANDRA, Rahul ,  GAO, Qinghai ,  BABU, Balaji Srinivasan

IPC: H04L1/00 ,  H04B7/04 ,  H04B7/06 ,  H04L25/02

CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0647 ,  H04L1/0027 ,  H04L5/00 ,  H04L25/0204 ,  H04L25/0224

Abstract: A method of performing dynamic sounding in a wireless communication device includes determining whether to perform sounding based on an age of current channel state information (CSI). An achievable throughput can be recorded as a reference throughput after performing the sounding. A current achievable throughput can be compared with the reference throughput. A CSI timestamp can be reset when the current throughput is above the reference throughput by a first predetermined amount, thereby prolonging a lifespan of the current CSI. The CSI timestamp can be reduced when the current throughput is below the reference throughput by a second predetermined amount, thereby reducing the lifespan of the current CSI.

Abstract translation: 在无线通信设备中执行动态声音的方法包括基于当前信道状态信息（CSI）的年龄确定是否执行发声。 执行声音后可以将可实现的吞吐量记录为参考吞吐量。 可以将当前可实现的吞吐量与参考吞吐量进行比较。 当当前吞吐量高于参考吞吐量第一预定量时，可以重置CSI时间戳，从而延长当前CSI的寿命。 当当前吞吐量低于参考吞吐量第二预定量时，可以减少CSI时间戳，从而减少当前CSI的寿命。

公开(公告)号：WO2013151847A9

公开(公告)日：2013-10-10

申请号：PCT/US2013/034186

申请日：2013-03-27

Applicant: QUALCOMM INCORPORATED

Inventor： KIM, Youhan ,  CHADD, Adrian H. ,  GREEN, Michael R. ,  ZHANG, Ning ,  JONES, Vincent K., IV

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/02 ,  H04W72/08 ,  H04W48/12 ,  H04W88/10

Abstract: A wireless device may be configured to operate in one of two modes where each mode uses a different channel list to perform operations in accordance with the IEEE 802.11 standard. In a first mode, the wireless device operates as an access point that sets up channels using one channel list in order to facilitate communications within a basic service set (BSS). In a second mode, the wireless device uses a second channel list to operate as a station and scan for a BSS. The first channel list contains a subset of the channels contained in the second channel list. The channels in each respective channel list may be reconfigured to adapt to changes in the configuration of a BSS and the devices communicating therein.

公开(公告)号：WO2013086393A1

公开(公告)日：2013-06-13

申请号：PCT/US2012/068543

申请日：2012-12-07

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxin ,  ZHANG, Ning

IPC: G01S5/02 ,  G01S13/87

CPC classification number: G01S5/0257 ,  G01S5/021 ,  G01S5/14 ,  G01S13/876

Abstract: A hybrid positioning system can be implemented to improve location estimation of a wireless network device when reference network devices can have different distance calibration constants. For each of a plurality of positions at which the wireless network device is placed and for each reference network device, a distance between the wireless network device and the reference network device is determined. A first positioning algorithm is executed to determine an intermediate location (corresponding to each position) of the wireless network device and a distance calibration constant for each reference network device based, in part, on a corresponding initial location of the wireless network device. A second positioning algorithm is executed to estimate a subset of the positions of the wireless network device based on the intermediate location (corresponding to the position) of the wireless network device and the distance calibration constant of each of reference network devices.

Abstract translation: 当参考网络设备可以具有不同的距离校准常数时，可以实现混合定位系统以改善无线网络设备的位置估计。 对于放置无线网络设备的多个位置中的每一个，并且对于每个参考网络设备，确定无线网络设备与参考网络设备之间的距离。 执行第一定位算法以部分地基于无线网络设备的相应初始位置来确定无线网络设备的中间位置（对应于每个位置）和每个参考网络设备的距离校准常数。 执行第二定位算法，以基于无线网络设备的中间位置（对应于位置）和每个参考网络设备的距离校准常数来估计无线网络设备的位置的子集。