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    SINGLE STREAM PHASE TRACKING DURING CHANNEL ESTIMATION IN A VERY HIGH THROUGHPUT WIRELESS MIMO COMMUNICATION SYSTEM
    63.
    发明公开
    SINGLE STREAM PHASE TRACKING DURING CHANNEL ESTIMATION IN A VERY HIGH THROUGHPUT WIRELESS MIMO COMMUNICATION SYSTEM 审中-公开
    EINZELSTROM-PHASEN-TRACKINGWÄHRENDEINER KANALBESTIMMUNG IN EINEM DRAHTLOSEN MIMO-KOMMUNIKATIONSSYSTEM MIT SEHR HOHEM DURCHSATZ

    公开(公告)号：EP2609710A4

    公开(公告)日：2017-07-05

    申请号：EP11820744

    申请日：2011-08-26

    Applicant: QUALCOMM INC

    Inventor： SHI KAI ,  ZHANG NING

    IPC: H04L25/02 ,  H04B7/04 ,  H04L5/00 ,  H04L27/26

    CPC classification number: H04L27/2695 ,  H04B7/0413 ,  H04B7/0421 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/023 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2675

    Abstract: In a multiple-input, multiple-output system, the wireless node's receive chain demodulation function is enhanced to include phase tracking. Instead of performing phase tracking during the data symbols which is cumbersome for very high throughput wireless networks, the VHT Long Training Fields (LTFs) embedded in the preamble of a frame are used for phase tracking. Single stream pilot tones are added during the transmission of VHT-LTFs. This is exploited on the receive side to be able to estimate the channel using the pilot tones in the first set of the Long Training Fields. Second set of the Long Training Fields are then used to estimate the phase of the pilot tones using the estimated channel. The phase estimation so obtained is continuously applied to other received data tones throughout the VHT-LTFs of the data symbols. The phase errors due to PLL mismatches and phase noise are reduced at reception, leading to better signal to noise ratio for different levels of parts per million drift and offset in frequency. Further, MIMO channel estimation is more accurate, which improves the overall wireless network when this accurate MIMO channel estimation data participates in calibration and handshake between wireless nodes.

    Abstract translation: 在MIMO中，无线节点的接收链解调功能被增强以包括使用嵌入在帧前导码中的非常高吞吐量的长训练字段（VHT-LTF）的相位跟踪。 在传输VHT-LTF期间添加单流导频音。 接收机使用第一组VHT-LTF中的导频音来估计信道，并且使用第二组VHT-LTF来估计导频音的相位。 相位估计接收机使用第一组VHT-LTF中的导频音来估计信道。 相位估计连续地应用于整个数据符号的VHT-LTF中的其他接收数据音调。 由于PLL失配和相位噪声导致的相位误差在接收时降低，从而针对不同的漂移和频率偏移水平产生更好的信噪比。

    SELECTING FREQUENCY BANDS FOR TRANSMITTING DATA PACKETS
    66.
    发明公开
    SELECTING FREQUENCY BANDS FOR TRANSMITTING DATA PACKETS 审中-公开
    奥斯卡·冯·弗朗西斯伯恩·祖尔·ÜBERTRAGUNGVON DATENPAKETEN

    公开(公告)号：EP2617146A4

    公开(公告)日：2017-01-25

    申请号：EP11826023

    申请日：2011-09-16

    Applicant: QUALCOMM INC

    Inventor： KIM YOUHAN ,  CHO JAMES ,  SHI KAI ,  ZHANG NING

    IPC: H04W72/04 ,  H04W84/12

    CPC classification number: H04W72/0453 ,  H04L1/0643 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053

    Abstract: A first combination of frequency bands is selected for transmitting a first data packet, and a second, different combination of frequency bands is selected for transmitting a second data packet. A data stream is divided into a first set of data and a second set of data. The first set of data is allocated to the first combination of frequency bands, and the second set of data is allocated to the second combination of frequency bands.

    Abstract translation: 选择频带的第一组合用于发送第一数据分组，并且选择频带的第二不同组合来发送第二数据分组。 数据流被分成第一组数据和第二组数据。 第一组数据被分配给频带的第一组合，并且第二组数据被分配给频带的第二组合。

    WIRELESS NETWORKING-ENABLED PERSONAL IDENTIFICATION SYSTEM
    67.
    发明申请
    WIRELESS NETWORKING-ENABLED PERSONAL IDENTIFICATION SYSTEM 审中-公开
    无线网络启动的个人识别系统

    公开(公告)号：WO2014144563A3

    公开(公告)日：2015-04-02

    申请号：PCT/US2014029027

    申请日：2014-03-14

    Applicant: QUALCOMM INC

    Inventor： SU DAVID KUOCHIEH ,  ZHANG NING

    IPC: H04M1/66

    CPC classification number: H04W52/0264 ,  G06F21/32 ,  G06F21/44 ,  H04L63/0861 ,  H04L63/0876 ,  H04W12/06 ,  Y02B60/50 ,  Y02D70/00 ,  Y02D70/166 ,  Y02D70/26

    Abstract: A beacon message is wirelessly transmitted from a first device. The first device receives a first response to the beacon message, wherein the first response includes identification values associated with a personal identification device. The first device communicates with a second device associated with the personal identification device. The personal identification device is authenticated based, at least in part, on the identification values and the communication with the second device.

    Abstract translation: 从第一设备无线发送信标消息。 第一设备接收对信标消息的第一响应，其中第一响应包括与个人识别设备相关联的标识值。 第一设备与与个人识别设备相关联的第二设备通信。 至少部分地基于识别值和与第二设备的通信来认证个人识别设备。

    POWER AMPLIFIER SYSTEM INCLUDING A COMPOSITE DIGITAL PREDISTORTER
    68.
    发明申请
    POWER AMPLIFIER SYSTEM INCLUDING A COMPOSITE DIGITAL PREDISTORTER 审中-公开
    功率放大器系统，包括复合数字预测器

    公开(公告)号：WO2014137783A2

    公开(公告)日：2014-09-12

    申请号：PCT/US2014019282

    申请日：2014-02-28

    Applicant: QUALCOMM INC

    Inventor： ZHOU HAO ,  ZHANG NING

    IPC: H03F1/32

    CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3258 ,  H03F1/3294 ,  H04B2001/0425

    Abstract: A power amplifier system including a composite digital predistorter (DPD) ensuring optimized linearity for the power amplifier is described. In this system, a digital-to-analog converter (DAC), an analog filter, a first mixer, and the power amplifier are serially coupled to the composite DPD. A second mixer, a receive gain block, and an analog-to-digital converter (ADC) are serially coupled to the output of the power amplifier. A DPD training component is coupled between the inputs of the composite DPD and the ADC. The composite DPD includes a memory-based DPD, e.g., a memory polynomial (MP) DPD, a memoryless-linearizing DPD, e.g., a look-up table (LUT) DPD, and two multiplexers.

    Abstract translation: 描述了一种包括确保功率放大器的优化线性度的复合数字预失真器（DPD）的功率放大器系统。 在该系统中，数模转换器（DAC），模拟滤波器，第一混频器和功率放大器串联耦合到复合DPD。 第二混频器，接收增益模块和模数转换器（ADC）串联耦合到功率放大器的输出端。 DPD训练组件耦合在复合DPD和ADC的输入之间。 复合DPD包括基于存储器的DPD，例如存储器多项式（MP）DPD，无记忆线性化DPD，例如查找表（LUT）DPD和两个多路复用器。

    WIRELESS CHANNELIZATION
    69.
    发明申请
    WIRELESS CHANNELIZATION 审中-公开
    无线通道

    公开(公告)号：WO2013151847A3

    公开(公告)日：2013-11-28

    申请号：PCT/US2013034186

    申请日：2013-03-27

    Applicant: QUALCOMM INC

    Inventor： KIM YOUHAN ,  CHADD ADRIAN H ,  GREEN MICHAEL R ,  ZHANG NING ,  JONES VINCENT K IV

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

    CPC classification number: H04W88/06 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0064 ,  H04W48/12 ,  H04W72/048 ,  H04W76/025 ,  H04W88/08 ,  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.

    Abstract translation: 无线设备可以被配置为以两种模式之一操作，其中每个模式使用不同的频道列表来执行根据IEEE 802.11标准的操作。 在第一模式中，无线设备作为接入点进行操作，该接入点使用一个信道列表建立信道，以促进基本业务集（BSS）内的通信。 在第二模式中，无线设备使用第二频道列表作为站并且扫描BSS。 第一频道列表包含第二频道列表中包含的频道的子集。 可以重新配置每个相应频道列表中的频道以适应BSS及其中通信的设备的配置的变化。

    WIRELESS CHANNELIZATION
    70.
    发明申请
    WIRELESS CHANNELIZATION 审中-公开
    无线信道

    公开(公告)号：WO2013151847A2

    公开(公告)日：2013-10-10

    申请号：PCT/US2013034186

    申请日：2013-03-27

    Applicant: QUALCOMM INC

    Inventor： KIM YOUHAN ,  CHADD ADRIAN H ,  GREEN MICHAEL R ,  ZHANG NING ,  JONES VINCENT K IV

    IPC: H04W72/04

    CPC classification number: H04W88/06 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0064 ,  H04W48/12 ,  H04W72/048 ,  H04W76/025 ,  H04W88/08 ,  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.

    Abstract translation: 无线设备可以被配置为以两种模式中的一种模式进行操作，其中每种模式使用不同的信道列表来执行根据IEEE 802.11标准的操作。 在第一模式中，无线设备用作接入点，该接入点使用一个信道列表来建立信道，以促进基本服务集（BSS）内的通信。 在第二种模式中，无线设备使用第二频道列表作为电台运行并扫描BSS。 第一频道列表包含第二频道列表中包含的频道的子集。 每个相应频道列表中的频道可以被重新配置以适应BSS和在其中通信的设备的配置中的变化。

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