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    Capability information for sounding reference signal improvements
    22.
    发明授权
    Capability information for sounding reference signal improvements 有权

    公开(公告)号：US11509372B2

    公开(公告)日：2022-11-22

    申请号：US16863732

    申请日：2020-04-30

    Applicant: QUALCOMM Incorporated

    Inventor： Le Liu ,  Alberto Rico Alvarino ,  Prashanth Akula

    IPC: H04B7/06 ,  H04W72/04 ,  H04B17/336 ,  H04B1/713 ,  H04L5/00

    Abstract: Certain aspects of the present disclosure provide techniques for capability information for sounding reference signal (SRS) improvements. An exemplary method generally includes determining a capability of the UE related to additional sounding reference signal (SRS) transmissions in a normal uplink (UL) subframe; transmitting, to a base station (BS), capability information indicating the determined capability of the UE; receiving SRS configuration information, wherein the SRS configuration information is based, at least in part, on the capability information; and transmitting at least one SRS in accordance with the SRS configuration information.

    Dynamic scheduling of data patterns for shortened transmission time intervals
    25.
    发明授权
    Dynamic scheduling of data patterns for shortened transmission time intervals 有权

    公开(公告)号：US10554448B2

    公开(公告)日：2020-02-04

    申请号：US16058648

    申请日：2018-08-08

    Applicant: QUALCOMM Incorporated

    Inventor： Prashanth Akula ,  Seyedkianoush Hosseini ,  Young Geun Cho

    IPC: H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W16/28 ,  H04W72/12 ,  H04W72/14

    Abstract: Methods, systems, and devices for wireless communication are described. Multiple transmission time intervals (TTIs) may be used for communications between a base station and user equipment (UE), where each TTI may have a data pattern scheduled by a base station. Each TTI may include respective symbol periods designated as reference or data symbol periods. In some examples, the UE may be configured to transmit a sounding reference signal (SRS) in a last symbol period of a TTI, and a base station may dynamically determine a data pattern for the TTI such that a temporally last symbol period is immediately preceded by a reference symbol period (e.g., based on the presence of the SRS). In such cases, the UE may configure a transient time within the preceding reference symbol period to avoid signal degradation of the SRS (or data transmitted within the same TTI).

    Power reservation for carrier aggregation signaling during shortened transmission time intervals
    27.
    发明授权
    Power reservation for carrier aggregation signaling during shortened transmission time intervals 有权

    公开(公告)号：US10397886B2

    公开(公告)日：2019-08-27

    申请号：US16019113

    申请日：2018-06-26

    Applicant: QUALCOMM Incorporated

    Inventor： Prashanth Akula ,  Amir Farajidana ,  Seyedkianoush Hosseini

    IPC: H04L5/00 ,  H04W52/14 ,  H04W52/34 ,  H04W52/36 ,  H04W52/52 ,  H04W72/04

    Abstract: Methods, systems, and devices for wireless communication are described. In some cases, a user equipment (UE) may be scheduled to transmit uplink signals on different carriers during transmission time intervals (TTIs) that have different durations. As such, a TTI on a first carrier (e.g., a reference carrier) may overlap with multiple shortened TTIs (sTTIs) on a second carrier (e.g., a non-reference carrier). Using the techniques described herein, the UE may select a calibration point (or a gain index) for uplink transmissions at the beginning of the TTI on the reference carrier based on an amount of power reserved for expected power increases during the TTI. As such, when the UE has to update its transmit power for an uplink transmission during an sTTI on the second carrier, the UE may apply a digital back-off from a power associated with the calibration point.

    Aerial robotic vehicle antenna switching
    29.
    发明授权
    Aerial robotic vehicle antenna switching 有权

    公开(公告)号：US10149276B2

    公开(公告)日：2018-12-04

    申请号：US15686482

    申请日：2017-08-25

    Applicant: QUALCOMM Incorporated

    Inventor： Prashanth Akula ,  Edward Harrison Teague

    IPC: H04W64/00 ,  H04B7/185 ,  H01Q3/24 ,  H01Q1/28 ,  H04W84/00

    Abstract: Various embodiments include methods for managing antennas on an aerial robotic vehicle used for wireless communications. A processor may receive position information identifying a location of the aerial robotic vehicle, determine whether to switch from using a first antenna to using a second antenna for active communications of the aerial robotic vehicle based on the position information, and switch active communications from using the first antenna to using the second antenna in response to determining that active communications of the aerial robotic vehicle should switch from using the first antenna to using the second antenna. The processor may make the determination using information from a database, which may correlate aerial robotic vehicle position to whether to use a particular one of the first and second antennas for active communications. The determination may also be based on a comparison of signal qualities obtained by both antennas.

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