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    Matrix-based techniques for mapping resource elements to ports for reference signals
    74.
    发明授权
    Matrix-based techniques for mapping resource elements to ports for reference signals 有权

    公开(公告)号：US10404433B2

    公开(公告)日：2019-09-03

    申请号：US15826612

    申请日：2017-11-29

    Applicant: QUALCOMM Incorporated

    Inventor： Juergen Cezanne ,  Vasanthan Raghavan ,  Bilal Sadiq ,  Sundar Subramanian ,  Ashwin Sampath ,  Junyi Li

    IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04B7/0408

    Abstract: Techniques are described for wireless communication. A method of wireless communication at a first wireless device includes identifying a template mapping of a plurality of ports to a first plurality of frequency subcarriers and a first plurality of time periods of a template time-frequency resource grid; mapping a plurality of resource elements of an orthogonal frequency-division multiplexing (OFDM) time-frequency resource grid to the plurality of ports based at least in part on the template mapping; receiving a reference signal from a second wireless device, on a subset of the plurality of ports, based at least in part on the mapping; and decoding the reference signal from a subset of the plurality of resource elements based at least in part on the mapping. In some cases, each port of the plurality of ports is associated with a corresponding radio frequency (RF) chain.

    TECHNIQUES FOR BEAM SHAPING AT A MILLIMETER WAVE BASE STATION AND A WIRELESS DEVICE AND FAST ANTENNA SUBARRAY SELECTION AT A WIRELESS DEVICE
    79.
    发明申请
    TECHNIQUES FOR BEAM SHAPING AT A MILLIMETER WAVE BASE STATION AND A WIRELESS DEVICE AND FAST ANTENNA SUBARRAY SELECTION AT A WIRELESS DEVICE 有权
    用于在无线设备上的毫米波基站和无线设备上的波束形成技术和快速天线子选择

    公开(公告)号：US20160198474A1

    公开(公告)日：2016-07-07

    申请号：US14822681

    申请日：2015-08-10

    Applicant: QUALCOMM Incorporated

    Inventor： Vasanthan Raghavan ,  Juergen Cezanne ,  Sundar Subramanian ,  Ashwin Sampath ,  Junyi Li

    IPC: H04W72/04 ,  H04W72/08 ,  H04B7/06

    CPC classification number: H04W72/0466 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0874 ,  H04W72/085

    Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). A wireless communications system may improve UE discovery latency by dynamically selecting and switching beam forming codebooks at the millimeter wave base station and the wireless device. Selecting an optimal beam forming codebook may allow the wireless communication system to improve link margins between the base station without compromising resources. In some examples, a wireless device may determine whether the received signals from the millimeter wave base station satisfy established signal to noise (SNR) thresholds, and select an optimal beam codebook to establish communication. Additionally or alternately, the wireless device may further signal the selected beam codebook to the millimeter wave base station and direct the millimeter wave base station to adjust its codebook based on the selection.

    Abstract translation: 描述了用于用户设备（UE）的无线通信的方法，系统和设备。 无线通信系统可以通过在毫米波基站和无线设备处动态地选择和切换波束形成码本来改善UE发现等待时间。 选择最佳波束形成码本可以允许无线通信系统在不牺牲资源的情况下改善基站之间的链路余量。 在一些示例中，无线设备可以确定来自毫米波基站的接收信号是否满足建立的信噪比（SNR）阈值，并且选择最佳波束码本来建立通信。 另外或替代地，无线设备还可以将所选择的波束码本发送到毫米波基站，并指示毫米波基站基于该选择来调整其码本。

    Beam direction selection for high pathloss mode operations
    80.
    发明授权
    Beam direction selection for high pathloss mode operations 有权

    公开(公告)号：US12302124B2

    公开(公告)日：2025-05-13

    申请号：US18056621

    申请日：2022-11-17

    Applicant: QUALCOMM Incorporated

    Inventor： Junyi Li ,  Juergen Cezanne ,  Vasanthan Raghavan

    IPC: H04W16/28

    Abstract: Methods, systems, and devices for wireless communications are described. The described techniques enable a first wireless device (e.g., an integrated access and backhaul (IAB) node in an TAB system) or a network entity (e.g., a centralized unit (CU) in the TAB system) to select a set of wireless devices for communication. The first wireless device, the CU, or both may select the set of wireless devices for communication based on a pathloss mode of the first wireless device, whether an angular separation between a group of nodes (e.g., one or more of the set of wireless devices) is less than an angular separation threshold, or both. The first wireless device may communicate with the set of wireless devices with one or more communications beams. For example, the device may communicate with multiple wireless devices using a single communication beam if the angular separation between the multiple devices is relatively low.

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