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    Narrowband assisted ultrawideband message sequences
    1.
    发明授权
    Narrowband assisted ultrawideband message sequences 有权

    公开(公告)号：US12081261B2

    公开(公告)日：2024-09-03

    申请号：US17960056

    申请日：2022-10-04

    Applicant: QUALCOMM Incorporated

    Inventor： Pooria Pakrooh ,  Bin Tian ,  Stephen Jay Shellhammer ,  Le Nguyen Luong ,  Koorosh Akhavan

    IPC: H04B1/71 ,  H04B1/7183

    CPC classification number: H04B1/7183

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may transmit, to a second wireless communication device, a time and/or frequency synchronization message using a first radio frequency (RF) technology, wherein the time and/or frequency synchronization message is used to obtain synchronization information for a second RF technology. The first wireless communication device may transmit, to the second wireless communication device, a first set of ranging measurement signals associated with the second RF technology. The first wireless communication device may receive, from the second wireless communication device, a second set of ranging measurement signals associated with the second RF technology. Numerous other aspects are described.

    METHODS AND APPARATUS FOR IMPROVING ACQUISITION FOR NFC LOAD MODULATION
    2.
    发明申请
    METHODS AND APPARATUS FOR IMPROVING ACQUISITION FOR NFC LOAD MODULATION 审中-公开
    用于改善NFC负载调制采集的方法和装置

    公开(公告)号：US20150312707A1

    公开(公告)日：2015-10-29

    申请号：US14795782

    申请日：2015-07-09

    Applicant: QUALCOMM Incorporated

    Inventor： Le Nguyen Luong ,  RaviKiran Gopalan ,  Koorosh Akhavan

    IPC: H04W4/00 ,  H04B5/00

    CPC classification number: H04B5/00 ,  H04B5/0031 ,  H04L7/042 ,  H04L7/10 ,  H04W4/80

    Abstract: Aspects disclosed herein relate to improving acquisition for NFC load modulation. In one example, a communications device is equipped to monitor at least a complex component of load modulation of a carrier signal, detect, using a NFC technology type specific peak detection scheme, a peak associated with at least the complex component, and determine a presence of a packet beginning pattern based on the detected peak. In an aspect, the packet beginning pattern may be associated with a reception of a packet from a target NFC device.

    Abstract translation: 本文公开的方面涉及改进对NFC负载调制的采集。 在一个示例中，通信设备被配备为监视载波信号的负载调制的至少一个复杂分量，使用NFC技术类型特定的峰值检测方案检测与至少复杂分量相关联的峰值，并且确定存在 基于检测到的峰值的分组开始模式。 在一方面，分组开始模式可以与来自目标NFC设备的分组的接收相关联。

    SYSTEMS AND METHODS FOR IMPROVING COMMUNICATION SENSITIVITY
    3.
    发明申请
    SYSTEMS AND METHODS FOR IMPROVING COMMUNICATION SENSITIVITY 有权
    提高通信灵敏度的系统和方法

    公开(公告)号：US20150124906A1

    公开(公告)日：2015-05-07

    申请号：US14292616

    申请日：2014-05-30

    Applicant: QUALCOMM Incorporated

    Inventor： RaviKiran Gopalan ,  Le Nguyen Luong

    IPC: H04L27/12 ,  H04L27/20

    CPC classification number: H04L27/12 ,  H04L25/4908 ,  H04L27/20

    Abstract: A method for improving communication sensitivity by a wireless communication device is described. The method includes obtaining a string of bits. The method also includes mapping each bit in the string of bits to a pre-allocated bit pattern to create a series of concatenated pre-allocated bit patterns. The method further includes generating a modulated signal based on the series. The method additionally includes transmitting the modulated signal.

    Abstract translation: 描述了一种通过无线通信设备提高通信灵敏度的方法。 该方法包括获得一串比特。 该方法还包括将比特串中的每个比特映射到预先分配的比特模式以创建一系列级联的预先分配的比特模式。 该方法还包括基于该系列生成调制信号。 该方法还包括发送调制信号。

    Systems and methods for detecting data collisions for a near field communication system
    4.
    发明授权
    Systems and methods for detecting data collisions for a near field communication system 有权
    用于检测近场通信系统的数据冲突的系统和方法

    公开(公告)号：US08942278B2

    公开(公告)日：2015-01-27

    申请号：US13791737

    申请日：2013-03-08

    Applicant: QUALCOMM Incorporated

    Inventor： Koorosh Akhavan ,  RaviKiran Gopalan ,  Eunmo Kang ,  Le Nguyen Luong

    IPC: H04B3/46 ,  H04B17/00 ,  H04B5/00 ,  H04Q1/20

    CPC classification number: H04B5/00

    Abstract: In a wireless near field communication (NFC) system, a target, such as a smart card, can communicate with an initiator, such as a card reader, by load modulating a radio frequency (RF) signal generated by the initiator. When two or more targets load modulate the RF signal generated, “collisions” can occur with the load modulation. Apparatus and methods detect the presence or absence of collisions in a lower layer or physical layer and report the presence of detected collisions to an upper layer for further handling.

    Abstract translation: 在无线近场通信（NFC）系统中，诸如智能卡的目标可以通过负载调制由发起者产生的射频（RF）信号与诸如读卡器的发起者进行通信。 当两个或多个目标负载调制产生的RF信号时，负载调制可能会发生“碰撞”。 装置和方法检测下层或物理层中是否存在碰撞，并将检测到的碰撞的存在报告给上层进行进一步处理。

    METHODS AND APPARATUS FOR IMPROVING ACQUISITION FOR NFC LOAD MODULATION
    5.
    发明申请
    METHODS AND APPARATUS FOR IMPROVING ACQUISITION FOR NFC LOAD MODULATION 有权
    用于改善NFC负载调制采集的方法和装置

    公开(公告)号：US20140073241A1

    公开(公告)日：2014-03-13

    申请号：US13736174

    申请日：2013-01-08

    Applicant: QUALCOMM INCORPORATED

    Inventor： Le Nguyen Luong ,  RaviKiran Gopalan ,  Koorosh Akhavan

    IPC: H04B5/00

    CPC classification number: H04W4/008 ,  H04B5/00 ,  H04B5/0031 ,  H04L7/042 ,  H04L7/10 ,  H04W4/80

    Abstract: Aspects disclosed herein relate to improving acquisition for NFC load modulation. In one example, a communications device is equipped to monitor at least a complex component of load modulation of a carrier signal, detect, using a NFC technology type specific peak detection scheme, a peak associated with at least the complex component, and determine a presence of a packet beginning pattern based on the detected peak. In an aspect, the packet beginning pattern may be associated with a reception of a packet from a target NFC device.

    Abstract translation: 本文公开的方面涉及改进对NFC负载调制的采集。 在一个示例中，通信设备被配备为监视载波信号的负载调制的至少一个复杂分量，使用NFC技术类型特定的峰值检测方案检测与至少复杂分量相关联的峰值，并且确定存在 基于检测到的峰值的分组开始模式。 在一方面，分组开始模式可以与来自目标NFC设备的分组的接收相关联。

    SYSTEMS AND METHODS FOR DETECTING DATA COLLISIONS FOR A NEAR FIELD COMMUNICATION SYSTEM
    9.
    发明申请
    SYSTEMS AND METHODS FOR DETECTING DATA COLLISIONS FOR A NEAR FIELD COMMUNICATION SYSTEM 有权
    用于检测近场通信系统的数据冲突的系统和方法

    公开(公告)号：US20140086292A1

    公开(公告)日：2014-03-27

    申请号：US13791737

    申请日：2013-03-08

    Applicant: QUALCOMM INCORPORATED

    Inventor： Koorosh Akhavan ,  RaviKiran Gopalan ,  Eunmo Kang ,  Le Nguyen Luong

    IPC: H04B5/00

    CPC classification number: H04B5/00

    Abstract: In a wireless near field communication (NFC) system, a target, such as a smart card, can communicate with an initiator, such as a card reader, by load modulating a radio frequency (RF) signal generated by the initiator. When two or more targets load modulate the RF signal generated, “collisions” can occur with the load modulation. Apparatus and methods detect the presence or absence of collisions in a lower layer or physical layer and report the presence of detected collisions to an upper layer for further handling.

    Abstract translation: 在无线近场通信（NFC）系统中，诸如智能卡的目标可以通过负载调制由发起者产生的射频（RF）信号与诸如读卡器的发起者进行通信。 当两个或多个目标负载调制产生的RF信号时，负载调制可能会发生“碰撞”。 装置和方法检测下层或物理层中是否存在碰撞，并将检测到的碰撞的存在报告给上层进行进一步处理。

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