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    AN ENHANCED PREAMBLE WAVEFORM FOR COEXISTENCE
    61.
    发明申请
    AN ENHANCED PREAMBLE WAVEFORM FOR COEXISTENCE 审中-公开
    增强的前瞻性波形

    公开(公告)号：WO2016160528A1

    公开(公告)日：2016-10-06

    申请号：PCT/US2016/024081

    申请日：2016-03-24

    Applicant: QUALCOMM INCORPORATED

    Inventor： LUO, Tao ,  CHENDAMARAI KANNAN, Arumugam ,  TIAN, Bin ,  MALIK, Rahul

    IPC: H04L27/26 ,  H04W16/14 ,  H04L27/00

    CPC classification number: H04W16/14 ,  H04L27/0006 ,  H04L27/2613 ,  H04W74/0808

    Abstract: In order to ensure coexistence over shared frequency bands or unlicensed spectrum, a common channel reservation mechanism decodable (ie no energy detection) by both Wi-Fi (IEEE 802.11) and LTE users is provided: An enhanced preamble is proposed to be transmitted by LTE-U devices to reserve the channel (instead of the conventional CUBS signal): The enhanced preamble is detectable by WLAN devices but also includes a characteristic that indicates that the associated transmission will be an LTE-U based transmission to other LTE-U devices. The characteristic may be 1) a phase shift between the STF and LTF or 2) the use of an enhanced STF which has a different frequency domain sequence or a different subcarrier mapping of the sequence at the IFFT, or 3) additional preamble field: an initial STF' waveform inverted at half its duration so that it is not detected by usual WLAN autocorrelators but only by LTE-U devices, or 4) the timing alignment of the WLAN preamble with LTE-U symbol periods.

    Abstract translation: 为了确保在共享频带或非授权频谱上共存，提供了Wi-Fi（IEEE 802.11）和LTE用户可解码（即无能量检测）的公共信道预留机制：增强前导码由LTE传输 -U用于保留信道的设备（而不是传统的CUBS信号）：增强的前导码可由WLAN设备检测，但也包括指示相关传输将是基于LTE-U的其他LTE-U设备的传输的特性。 特征可以是1）STF和LTF之间的相移，或2）使用在IFFT具有不同频域序列或序列的不同子载波映射的增强型STF，或3）附加前导字段： 初始STF'波形以其一半持续时间反转，使得它不被普通的WLAN自相关器检测到但仅由LTE-U设备检测到，或4）WLAN前导码与LTE-U符号周期的定时对准。

    METHODS AND APPARATUS FOR REDUNDANT WAVEFORM PROTECTION IN A MIXED WIRELESS COMMUNICATION SYSTEM
    62.
    发明申请
    METHODS AND APPARATUS FOR REDUNDANT WAVEFORM PROTECTION IN A MIXED WIRELESS COMMUNICATION SYSTEM 审中-公开
    混合无线通信系统中冗余波形保护的方法与装置

    公开(公告)号：WO2016138154A1

    公开(公告)日：2016-09-01

    申请号：PCT/US2016/019388

    申请日：2016-02-24

    Applicant: QUALCOMM INCORPORATED

    Inventor： MALIK, Rahul ,  SAMPATH, Hemanth

    IPC: H04W74/08

    CPC classification number: H04W72/1215 ,  H04W74/0816 ,  H04W84/12

    Abstract: Certain aspects of the present disclosure relate to a methods and apparatus for wireless communication. In one aspect, a method of communication over a wireless medium includes transmitting, from a first wireless device, a first communication reserving access to the wireless medium during a first time period. The method further includes transmitting or receiving a long term evolution unlicensed (LTE-U) transmission during the first time period. The method further includes detecting, prior to the first time period, an interfering WLAN transmission that will result in its transmitter and recipients not detecting the first communication. The method further includes transmitting, after the interfering WLAN transmission, a second communication reserving access to the wireless medium during a second time period at least partially overlapping the first.

    Abstract translation: 本公开的某些方面涉及无线通信的方法和装置。 在一个方面，一种通过无线介质进行通信的方法包括：在第一时间段期间从第一无线设备发送保留对无线介质的访问的第一通信。 该方法还包括在第一时间段期间发送或接收长期进化未许可（LTE-U）传输。 该方法还包括在第一时间段之前检测将导致其发射机和接收机未检测到第一通信的干扰WLAN传输。 该方法还包括在干扰WLAN传输之后，在与第一个至少部分重叠的第二时间段期间，发送保留对无线介质的访问的第二通信。

    METHODS AND APPARATUS FOR WAVEFORM PROTECTION IN A MIXED WIRELESS COMMUNICATION SYSTEM
    63.
    发明申请
    METHODS AND APPARATUS FOR WAVEFORM PROTECTION IN A MIXED WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于混合无线通信系统中波形保护的方法和装置

    公开(公告)号：WO2016138119A1

    公开(公告)日：2016-09-01

    申请号：PCT/US2016/019338

    申请日：2016-02-24

    Applicant: QUALCOMM INCORPORATED

    Inventor： MALIK, Rahul ,  SAMPATH, Hemanth

    IPC: H04W74/08 ,  H04W88/10

    CPC classification number: H04W72/1215 ,  H04W74/04 ,  H04W74/0816 ,  H04W88/10

    Abstract: Certain aspects of the present disclosure relate to a methods and apparatus for wireless communication. In one aspect, a method a method of communication over a wireless medium. The method includes transmitting, from a first wireless device, a first communication reserving access to the wireless medium during an indicated first time period. The first communication includes a contention-based transmission. The method further includes transmitting, during the first time period, a second communication reserving access to the wireless medium during an indicated second time period at least partially overlapping the first. The second communication includes a scheduled transmission. The method further includes transmitting or receiving a long term evolution unlicensed (LTE-U) transmission during the second time period.

    Abstract translation: 本公开的某些方面涉及无线通信的方法和装置。 一方面，一种通过无线介质进行通信的方法。 该方法包括在第一时间段期间从第一无线设备发送保留对无线介质的访问的第一通信。 第一通信包括基于竞争的传输。 所述方法还包括在所述第一时间段期间，在指示的第二时间段期间，至少部分地与所述第一时间段重叠的第二通信传输保留对所述无线介质的访问。 第二通信包括预定传输。 该方法还包括在第二时间段期间发送或接收长期进化未许可（LTE-U）传输。

    ADJUSTABLE CARRIER SENSE THRESHOLD FOR WIRELESS BROADCAST
    65.
    发明申请
    ADJUSTABLE CARRIER SENSE THRESHOLD FOR WIRELESS BROADCAST 审中-公开
    可调节载波感知无线宽带广播

    公开(公告)号：WO2014123815A1

    公开(公告)日：2014-08-14

    申请号：PCT/US2014/014459

    申请日：2014-02-03

    Applicant: QUALCOMM INCORPORATED

    Inventor： DING, Gang ,  CHIKKAPPA, Kiran S. ,  LUNDQVIST, Patrik N. ,  MALIK, Rahul

    IPC: H04W74/08

    CPC classification number: H04W28/0231 ,  H04W74/0808

    Abstract: A method of adjusting a carrier sense threshold to avoid hidden nodes during wireless broadcast. The method includes monitoring a load of the peer-to-peer network before broadcasting a message from a node. The method also includes adjusting a carrier sense threshold (CST) based on the load of the peer-to-peer network to avoid broadcast message collisions due to one or more hidden nodes.

    Abstract translation: 一种在无线广播期间调整载波侦听阈值以避免隐藏节点的方法。 该方法包括在从节点广播消息之前监视对等网络的负载。 该方法还包括基于对等网络的负载来调整载波侦听阈值（CST），以避免由于一个或多个隐藏节点引起的广播消息冲突。

    BEAM RECOVERY PROCEDURE USING A SECOND COMPONENT CARRIER
    67.
    发明公开
    BEAM RECOVERY PROCEDURE USING A SECOND COMPONENT CARRIER 审中-公开

    公开(公告)号：EP4456440A2

    公开(公告)日：2024-10-30

    申请号：EP24200154.3

    申请日：2018-08-01

    Applicant: QUALCOMM Incorporated

    Inventor： SADIQ, Bilal ,  ISLAM, Muhammad Nazmul ,  SUBRAMANIAN, Sundar ,  CHEN, Wanshi ,  GAAL, Peter ,  MALIK, Rahul ,  LEE, Heechoon ,  YANG, Yang

    IPC: H04B7/0408

    Abstract: Systems, methods, and apparatuses for performing a beam recovery procedure using a second CC are disclosed. A UE may perform a beam recovery procedure using two component carriers (CCs): for example, CC1 may be a beam formed millimeter wave (MMW) carrier having a beam recovery procedure and CC2 may be an assisting carrier such as a sub-6 GHz carrier. In a first example, a UE may trigger beam recovery for CC1 (on CC2), generate a beam measurement report, and transmit the beam report on resources allocated for uplink transmission on CC2. In a second example, a new scheduling request (SR) may be defined on CC1 for CC2 beam recovery. In a third example, RACH resources or procedures on CC2 may be used to perform the beam recovery for CC1.

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