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    Dwell time based channel contention in wireless communications
    493.
    发明授权
    Dwell time based channel contention in wireless communications 有权

    公开(公告)号：US11696327B2

    公开(公告)日：2023-07-04

    申请号：US17182508

    申请日：2021-02-23

    Applicant: QUALCOMM Incorporated

    Inventor： Arumugam Chendamarai Kannan ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Vinay Chande ,  Srinivas Yerramalli ,  Jing Sun ,  Tao Luo

    IPC: H04W74/08

    CPC classification number: H04W74/0808 ,  H04W74/0816

    Abstract: Methods, systems, and devices for wireless communications are described in which a transmitting device using shared radio frequency spectrum may perform a listen before talk (LBT) procedure for at least a minimum dwell time and, upon successful completion of the LBT procedure, may occupy the spectrum for up to a duration of a channel occupancy time (COT). The transmitting device may discontinue transmitting during the COT for a gap period, and resume transmitting subsequent to the gap period without performing another LBT procedure. The minimum dwell time may be based on a periodicity of a channel reservation signal transmitted by one or more other devices using the shared radio frequency spectrum. In some cases, the transmitting device may schedule one or more receiving devices with resources for transmissions during the COT, and the receiving devices may perform a LBT that is non-adjacent with an associated transmission.

    Frame-based initiator device operation
    496.
    发明授权
    Frame-based initiator device operation 有权

    公开(公告)号：US11653341B2

    公开(公告)日：2023-05-16

    申请号：US17367583

    申请日：2021-07-05

    Applicant: QUALCOMM incorporated

    Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Tamer Kadous ,  Yongbin Wei

    IPC: H04W72/04 ,  H04W72/0446 ,  H04W72/1268 ,  H04W74/08

    CPC classification number: H04W72/0446 ,  H04W72/1268 ,  H04W74/0808

    Abstract: Methods, systems, and devices for wireless communications are described that provide for frame-based initiator device operations. A wireless device may be operating within a frame-based equipment communications system, where a frame may include a channel occupancy time period and a minimum idle period. An initiating device may be configured to initiate autonomous uplink communications during the channel occupancy time period of its frame, while the device may not initiate communications during an idle period of its frame. In some cases, a frame-based equipment communications system may include more than one initiating device, where the idle periods for different initiating devices may occur at different times. In some cases, the initiating device may be configured to initiate communications during the idle period for another initiating device. This may allow the wireless system to decrease system overhead associated with a minimum idle period per frame.

    Random access preamble for positioning indication
    498.
    发明授权
    Random access preamble for positioning indication 有权

    公开(公告)号：US11632792B2

    公开(公告)日：2023-04-18

    申请号：US17105832

    申请日：2020-11-27

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivas Yerramalli ,  Alexandros Manolakos ,  Mukesh Kumar

    IPC: H04W74/00 ,  H04L5/00 ,  H04L25/02 ,  H04W64/00 ,  H04W74/08 ,  H04W76/11 ,  H04W76/27 ,  H04W80/02 ,  H04W72/23

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a base station (BS), an indication of a random access (RA) channel (RACH) preamble. The RACH preamble is a member of a first set of RACH preambles reserved for positioning purposes, the first set of RACH preambles is different from a second set of RACH preambles reserved for communication purposes, and the first and second sets of RACH preambles are associated with the BS. The UE detects, while in a radio resource control (RRC) idle or RRC inactive state, a positioning event. The UE transmits, to the BS, the RACH preamble. The UE receives, from the BS, a RA response for positioning purposes that is different from a RA response for communication purposes, the RA response for positioning purposes including a random access preamble identifier that is mapped to the RACH preamble.

    CHANNEL STATE INFORMATION REPORTING FOR RECONFIGURABLE INTELLIGENT SURFACES
    499.
    发明申请
    CHANNEL STATE INFORMATION REPORTING FOR RECONFIGURABLE INTELLIGENT SURFACES 有权

    公开(公告)号：US20230078537A1

    公开(公告)日：2023-03-16

    申请号：US17477234

    申请日：2021-09-16

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivas Yerramalli ,  Wooseok Nam ,  Tao Luo ,  Junyi Li ,  Juan Montojo

    IPC: H04L5/00 ,  H04B7/06 ,  H04W72/04 ,  H04W72/06

    Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, wireless devices may communicate using reconfigurable intelligent surfaces (RIS) for improved spatial diversity. A base station may transmit, to a user equipment (UE), control signaling indicating a configuration for a channel state information (CSI) reference signal (RS) resource set corresponding to one or more RISs and a communication beam threshold for the one or more RISs. The CSI-RS resource set may be specific to one RIS or may configure resources for multiple RISs. The UE may receive, according to the CSI-RS resource set, a set of CSI-RSs corresponding to a set of respective communication beams (e.g., reflected beams from the one or more RISs). The UE may transmit a CSI report indicating one or more communication beams selected by the UE based on the set of CSI-RSs and the communication beam threshold.

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