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    ROBUST EARLY DETECTION THROUGH SIGNAL REPETITION IN MIXED-RATE WIRELESS COMMUNICATIONS
    2.
    发明申请
    ROBUST EARLY DETECTION THROUGH SIGNAL REPETITION IN MIXED-RATE WIRELESS COMMUNICATIONS 审中-公开
    通过混合无线通信中的信号重复进行稳健的早期检测

    公开(公告)号：US20160227436A1

    公开(公告)日：2016-08-04

    申请号：US15013959

    申请日：2016-02-02

    Applicant: QUALCOMM Incorporated

    Inventor： Sameer Vermani ,  Bin Tian ,  Tao Tian

    IPC: H04W28/06 ,  H04L29/06

    CPC classification number: H04W28/06 ,  H04L1/08 ,  H04L69/22 ,  H04L2001/0093

    Abstract: A method of wirelessly communicating includes generating, at a wireless device, a packet including a first preamble field. The method further includes generating a first repeated preamble field by multiplying the first preamble field by a first frequency-domain polarity sequence. The method further includes transmitting the packet from the wireless device. The packet includes the first preamble field and the first repeated preamble field.

    Abstract translation: 无线通信的方法包括在无线设备处生成包括第一前同步码字段的分组。 该方法还包括通过将第一前同步码乘以第一频域极性序列来产生第一重复前同步码字段。 该方法还包括从无线设备发送分组。 分组包括第一前同步码字段和第一重复前导字段。

    Phase and amplitude tracking in the presence of a walking pilot signal
    3.
    发明授权
    Phase and amplitude tracking in the presence of a walking pilot signal 有权
    存在步行导频信号时的相位和幅度跟踪

    公开(公告)号：US09351176B2

    公开(公告)日：2016-05-24

    申请号：US13735937

    申请日：2013-01-07

    Applicant: Qualcomm Incorporated

    Inventor： Tao Tian ,  Sameer Vermani ,  Lin Yang ,  Albert van Zelst

    IPC: H04W24/02 ,  H04W52/02 ,  H04W72/04 ,  H04L25/02 ,  H04L25/03

    CPC classification number: H04W24/02 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03159 ,  H04W52/0209 ,  H04W72/042

    Abstract: A method and apparatus for tracking amplitude and phase of a received low frequency signal comprising a walking pilot signal is disclosed, wherein the pilot signal changes in frequency a number of times according to a sequence that repeats. The design includes initializing a FIFO buffer and summing estimated channel power over the sequence to determine an initial total power. The design also includes, for a new received symbol, determining an updated power estimate for the new received symbol, placing the updated power estimate in the FIFO buffer, and removing a least current value from the FIFO buffer, and estimating amplitude of the signal using a sum of all updated power estimates in the FIFO buffer divided by the initial total power. The design may further include determining a delta phase value using maximum ratio combining scaled with a scaling factor.

    Abstract translation: 公开了一种用于跟踪包括步行导频信号的接收低频信号的幅度和相位的方法和装置，其中导频信号根据重复的顺序频率改变多次。 该设计包括初始化FIFO缓冲器并对序列上的估计信道功率求和以确定初始总功率。 该设计还包括对于新的接收符号，确定新的接收符号的更新的功率估计，将更新的功率估计放置在FIFO缓冲器中，以及从FIFO缓冲器中去除最小电流值，以及使用 FIFO缓冲器中所有更新的功率估计值除以初始总功率的总和。 该设计可以进一步包括使用用比例因子缩放的最大比率组合来确定增量相位值。

    PHASE AND AMPLITUDE TRACKING IN THE PRESENCE OF A WALKING PILOT SIGNAL
    5.
    发明申请
    PHASE AND AMPLITUDE TRACKING IN THE PRESENCE OF A WALKING PILOT SIGNAL 有权
    在行车导航信号存在的阶段和振幅跟踪

    公开(公告)号：US20130176879A1

    公开(公告)日：2013-07-11

    申请号：US13735937

    申请日：2013-01-07

    Applicant: Qualcomm Incorporated

    Inventor： Tao Tian ,  Sameer Vermani ,  Lin Yang ,  Albert van Zelst

    IPC: H04W24/02

    CPC classification number: H04W24/02 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03159 ,  H04W52/0209 ,  H04W72/042

    Abstract: A method and apparatus for tracking amplitude and phase of a received low frequency signal comprising a walking pilot signal is disclosed, wherein the pilot signal changes in frequency a number of times according to a sequence that repeats. The design includes initializing a FIFO buffer and summing estimated channel power over the sequence to determine an initial total power. The design also includes, for a new received symbol, determining an updated power estimate for the new received symbol, placing the updated power estimate in the FIFO buffer, and removing a least current value from the FIFO buffer, and estimating amplitude of the signal using a sum of all updated power estimates in the FIFO buffer divided by the initial total power. The design may further include determining a delta phase value using maximum ratio combining scaled with a scaling factor.

    Abstract translation: 公开了一种用于跟踪包括步行导频信号的接收低频信号的幅度和相位的方法和装置，其中导频信号根据重复的顺序频率改变多次。 该设计包括初始化FIFO缓冲器并对序列上的估计信道功率求和以确定初始总功率。 该设计还包括对于新的接收符号，确定新的接收符号的更新的功率估计，将更新的功率估计放置在FIFO缓冲器中，以及从FIFO缓冲器中去除最小电流值，以及使用 FIFO缓冲器中所有更新的功率估计值除以初始总功率的总和。 该设计可以进一步包括使用用比例因子缩放的最大比率组合来确定增量相位值。

    METHODS AND APPARATUS FOR PACKET ACQUISITION IN MIXED-RATE WIRELESS COMMUNICATION NETWORKS
    10.
    发明申请
    METHODS AND APPARATUS FOR PACKET ACQUISITION IN MIXED-RATE WIRELESS COMMUNICATION NETWORKS 有权
    混合无线通信网络中分组获取的方法与设备

    公开(公告)号：US20160088126A1

    公开(公告)日：2016-03-24

    申请号：US14856351

    申请日：2015-09-16

    Applicant: QUALCOMM Incorporated

    Inventor： Dung Ngoc Doan ,  Tao Tian ,  Sameer Vermani ,  Bin Tian ,  Lin Yang ,  Eric Pierre Rebeiz ,  Rahul Tandra ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou

    IPC: H04L29/06 ,  H04W72/04

    CPC classification number: H04L69/22 ,  H04L27/261 ,  H04W72/04

    Abstract: A method of wirelessly communicating a packet includes generating, at a first wireless device, a first packet including a first preamble decodable by a plurality of devices and a second preamble decodable by only a subset of the plurality of devices. The first preamble includes a first signal field. The second preamble includes a first training field. The method further includes transmitting the first packet concurrently with one or more second packets to be transmitted by wireless devices other than the first wireless device.

    Abstract translation: 无线地传送分组的方法包括在第一无线设备处生成包括由多个设备可解码的第一前同步码的第一分组和仅由所述多个设备的子集解码的第二前同步码。 第一前导码包括第一信号字段。 第二前序部分包括第一训练场。 该方法还包括与要由第一无线设备以外的无线设备发送的一个或多个第二分组同时发送第一分组。

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