中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

58 records (took 0.022 seconds)

    POWER SAVE MECHANISM IN A WLAN WITH LARGE NUMBER OF STATIONS
    12.
    发明申请
    POWER SAVE MECHANISM IN A WLAN WITH LARGE NUMBER OF STATIONS 审中-公开
    在具有大量站点的WLAN中节省机械

    公开(公告)号：US20170064633A1

    公开(公告)日：2017-03-02

    申请号：US15246423

    申请日：2016-08-24

    Applicant: QUALCOMM Incorporated

    Inventor： Zhanfeng Jia ,  Alireza Raissinia ,  Alfred Asterjadhi ,  James Simon Cho ,  Sandip HomChaudhuri ,  Sumeet Kumar ,  Simone Merlin ,  Ning Zhang ,  Ashok Ranganath ,  Ian O'Donnell ,  Jason Young ,  BadriSrinvasan Sampathkumar

    IPC: H04W52/02

    CPC classification number: H04W52/0258 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0225 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

    Abstract: Methods, systems, and devices are described for saving power in wireless communications. One aspect includes providing an indication of a sleep duration for transmission to a wireless node, communicating with the wireless node during a target wakeup time (TWT), wherein the communication comprises at least one of providing data for transmission to the wireless node or obtaining data received from the wireless node, and refraining from providing data for transmission to the wireless node for at least the indicated sleep duration based at least in part on timing of the communication. Another aspect includes receiving an indication of a sleep duration from a wireless node, communicating with the wireless node during a time slot of a TWT, and entering a sleep mode for the indicated sleep duration based at least in part on timing of the communication with the wireless node during the time slot of the TWT.

    Abstract translation: 描述了在无线通信中节省功率的方法，系统和设备。 一个方面包括在目标唤醒时间（TWT）期间提供用于传输到无线节点的睡眠持续时间的指示，与无线节点进行通信，其中该通信包括提供用于传输到无线节点的数据或获得数据的至少一个 从所述无线节点接收，并且至少部分地基于所述通信的定时，避免提供用于至少所指示的睡眠持续时间的无线节点传输的数据。 另一方面包括从TWT接收来自无线节点的睡眠持续时间的指示，在TWT的时隙期间与无线节点进行通信，以及至少部分地基于与所述无线节点的通信的定时进入针对所指示的睡眠持续时间的睡眠模式 无线节点在TWT的时隙。

    SKIP RX DURING SBS TRANSMISSION
    13.
    发明申请
    SKIP RX DURING SBS TRANSMISSION 有权
    SKIP RX在SBS传输期间

    公开(公告)号：US20160315640A1

    公开(公告)日：2016-10-27

    申请号：US14696952

    申请日：2015-04-27

    Applicant: QUALCOMM Incorporated

    Inventor： Olaf Josef Hirsch ,  Guido Robert Frederiks ,  Zhanfeng Jia ,  Youhan Kim ,  Yixiang Li ,  Ning Zhang

    IPC: H04B1/00 ,  H04W88/06 ,  H04L27/00

    CPC classification number: H04W88/06 ,  H04L5/001 ,  H04L5/0073 ,  H04L5/143 ,  H04L27/0008 ,  H04L27/0014 ,  H04L27/2657 ,  H04L27/2662

    Abstract: A method and apparatus for concurrent wireless communications on multiple channels of the same frequency band. A wireless device receives a first data signal via a first transceiver chain while concurrently initiating a transmission of a second data signal via a second transceiver chain of the wireless device. The wireless device suspends updates to one or more tracking loops of the first transceiver chain in response to initiating the transmission of the second data signal. The updates to the one or more tracking loops may be suspended prior to transmitting the second set of data from the second transceiver chain. The wireless device may subsequently resume updates to the one or more tracking loops of the first transceiver chain after completing the transmission of the second 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。 无线设备经由第一收发器链接收第一数据信号，同时经由无线设备的第二收发器链同时启动第二数据信号的传输。 响应于启动第二数据信号的传输，无线设备暂停对第一收发器链的一个或多个跟踪环路的更新。 在从第二收发器链发送第二组数据之前，可以暂停对一个或多个跟踪环路的更新。 无线设备可以在完成第二数据信号的传输之后随后恢复对第一收发器链的一个或多个跟踪环路的更新。

    WIRELESS LOCAL AREA NETWORK THROUGHPUT ESTIMATION
    14.
    发明申请
    WIRELESS LOCAL AREA NETWORK THROUGHPUT ESTIMATION 审中-公开
    无线本地区网络通过估计

    公开(公告)号：US20160165475A1

    公开(公告)日：2016-06-09

    申请号：US14962530

    申请日：2015-12-08

    Applicant: QUALCOMM Incorporated

    Inventor： Youhan Kim ,  Zhanfeng Jia ,  Srinivas Katar ,  Rahul Malik ,  Jay Kumar Sundararajan ,  Arnaud Meylan ,  Ning Zhang ,  George Cherian

    IPC: H04W24/10

    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。

    Method and system for dynamic AMPDU duration control in a wireless communication system
    16.
    发明授权
    Method and system for dynamic AMPDU duration control in a wireless communication system 有权
    无线通信系统中动态AMPDU持续时间控制的方法和系统

    公开(公告)号：US09055458B2

    公开(公告)日：2015-06-09

    申请号：US13762338

    申请日：2013-02-07

    Applicant: QUALCOMM Incorporated

    Inventor： Shu Du ,  Zhanfeng Jia ,  Ning Zhang ,  Chin-Hung Chen ,  James S. Cho ,  Rahul Tandra ,  Qinghai Gao

    IPC: H04W24/02 ,  H04W28/00 ,  H04L1/00 ,  H04B7/04

    CPC classification number: H04W24/02 ,  H04B7/0452 ,  H04L1/0007

    Abstract: A method of providing aggregated MAC protocol data unit (AMPDU) duration control in a wireless communication device includes setting an AMPDU duration. Pass/fail statistics are collected for each MPDU of an AMPDU in a time window, W. A packet error rate (PER) difference is calculated between first and last sets of MPDUs for each AMPDU in the window. An average PER difference is calculated across all AMPDUs in the window. When the average PER difference is greater than a first threshold, then the AMPDU duration is decreased. When the difference is less than a second threshold, then the AMPDU duration is increased. When the difference is within the first and the second thresholds, then the method returns to the step of collecting for a next time window. The AMPDU duration can also be adjusted based on detected Doppler and line-of-sight transmissions.

    Abstract translation: 在无线通信设备中提供聚合MAC协议数据单元（AMPDU）持续时间控制的方法包括设置AMPDU持续时间。 在时间窗口W中收集AMPDU的每个MPDU的通过/失败统计信息。在窗口中的每个AMPDU的第一组和最后一组MPDU之间计算分组错误率（PER）差异。 在窗口中的所有AMPDU之间计算平均PER差异。 当平均PER差大于第一阈值时，AMPDU持续时间减小。 当差值小于第二阈值时，AMPDU持续时间增加。 当差异在第一和第二阈值内时，该方法返回到下一个时间窗口的收集步骤。 AMPDU持续时间也可以根据检测到的多普勒和视线传输进行调整。

    Dynamic Rate Control In WiFi Systems
    18.
    发明申请
    Dynamic Rate Control In WiFi Systems 有权
    WiFi系统中的动态速率控制

    公开(公告)号：US20140269655A1

    公开(公告)日：2014-09-18

    申请号：US13921860

    申请日：2013-06-19

    Applicant: QUALCOMM Incorporated

    Inventor： Shu Du ,  Zhanfeng Jia ,  Chin-Hung Chen ,  Ning Zhang, IV

    IPC: H04W28/02

    CPC classification number: H04W28/0231 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0016 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/006

    Abstract: A wireless device is configured to switch data rates to account for temporary channel conditions or device configuration errors. Pre-selected data rates, more likely to achieve maximum goodput, are stored in a data rate table. The data rate table contains candidate data rates for each pre-selected data rate in the data rate table. When probe transmissions using the preselected data rates fail, dynamic rate probing is utilized to determine a possible cause and extent of the problem. The dynamic rate probing scheme transmits probe transmissions using the candidate data rates and tracks success or failure of these probe transmissions. An analysis of the probe transmissions is used to indicate a possible cause and/or extent of the problematic condition and to determine whether there is a need to reconfigure the data rates in the data rate table.

    Abstract translation: 无线设备被配置为切换数据速率以考虑临时信道状况或设备配置错误。 预先选择的数据速率，更有可能实现最大的吞吐量，被存储在数据速率表中。 数据速率表包含数据速率表中每个预先选择的数据速率的候选数据速率。 当使用预选数据速率的探头传输失败时，利用动态速率探测来确定问题的可能原因和程度。 动态速率探测方案使用候选数据速率传输探测传输并跟踪这些探测传输的成功或失败。 探针传输的分析用于指示问题状况的可能的原因和/或程度，并且确定是否需要重新配置数据速率表中的数据速率。

    Signature-Coded Wake-Up Transmission
    19.
    发明申请
    Signature-Coded Wake-Up Transmission 有权
    签名编码唤醒传输

    公开(公告)号：US20140269462A1

    公开(公告)日：2014-09-18

    申请号：US13797608

    申请日：2013-03-12

    Applicant: QUALCOMM INCORPORATED

    Inventor： Zhanfeng Jia ,  David Su ,  Ning Zhang ,  Kai Shi

    IPC: H04W52/02

    CPC classification number: H04W52/0229 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

    Abstract: A wake-up radio is configured to scan for transmissions while the radio receiver is in sleep mode. The wake-up radio detects incoming RF transmissions intended for the radio receiver by analyzing data frame characteristics in an incoming RF transmission. The data frame characteristics may contain a signature code that is unique to the radio receiver. The signature code may be based on the time duration of a sequence of orthogonal frequency division multiplex (OFDM) symbols received in a clear to send to self (CTS2S) transmission or a time duration of short interframe spaces (SIFS) used to transmit the data frames.

    Abstract translation: 唤醒无线电被配置为在无线电接收机处于睡眠模式时扫描传输。 唤醒无线电通过分析进入RF传输中的数据帧特性来检测用于无线电接收机的进入RF传输。 数据帧特征可以包含无线电接收机唯一的签名代码。 签名代码可以基于在清除发送到自身（CTS2S）传输中接收的正交频分复用（OFDM）符号的序列的持续时间或用于发送数据的短帧间间隔（SIFS）的持续时间 框架。

Patent Agency Ranking