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    PER BEAM WAVEFORM SELECTION
    431.
    发明申请
    PER BEAM WAVEFORM SELECTION 有权

    公开(公告)号：US20210036817A1

    公开(公告)日：2021-02-04

    申请号：US16929053

    申请日：2020-07-14

    Applicant: QUALCOMM Incorporated

    Inventor： Tianyang Bai ,  Juergen Cezanne ,  Tao Luo ,  Junyi Li

    IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06 ,  H04B7/0404

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling configuring the UE to use a first waveform for communicating via a first beam and a second waveform for communicating via a second beam, the first waveform being different than the second waveform. The UE may communicate a first data transmission via the first beam using the first waveform and communicate a second data transmission via the second beam using the second waveform.

    PHASE TRACKING REFERENCE SIGNAL FOR SUB-SYMBOL PHASE TRACKING
    434.
    发明申请
    PHASE TRACKING REFERENCE SIGNAL FOR SUB-SYMBOL PHASE TRACKING 有权

    公开(公告)号：US20210014098A1

    公开(公告)日：2021-01-14

    申请号：US17037124

    申请日：2020-09-29

    Applicant: QUALCOMM Incorporated

    Inventor： Tianyang Bai ,  Juergen Cezanne ,  Sundar Subramanian ,  Junyi Li

    IPC: H04L27/26 ,  G06F17/14 ,  H04B1/16 ,  H04B1/04 ,  H04B1/40

    Abstract: Methods, systems, and devices for wireless communications are described for phase error estimation and correction with sub-symbol resolution. A transmitting device may precode symbols (e.g., phase tracking reference signal (PT-RS) symbols) using a discrete Fourier transform (DFT). The transmitting device may map the DFT-precoded symbols to sets of adjacent subcarriers of a wireless signal, and may map other symbols to other subcarriers of the wireless signal. A receiving device may receive the wireless signal and may compare time domain representations of the DFT-precoded symbols with time domain representations of known reference symbols. The receiving device may estimate a phase error with sub-symbol resolution in the time domain based at least in part on the comparison, and may apply a phase correction in either the time or frequency domain to the other symbols.

    Resource coordination for half duplex communications
    435.
    发明授权
    Resource coordination for half duplex communications 有权

    公开(公告)号：US10892883B2

    公开(公告)日：2021-01-12

    申请号：US16268791

    申请日：2019-02-06

    Applicant: QUALCOMM Incorporated

    Inventor： Jianghong Luo ,  Navid Abedini ,  Bilal Sadiq ,  Muhammad Nazmul Islam ,  Junyi Li ,  Karl Georg Hampel ,  Hong Cheng

    IPC: H04L5/16 ,  H04L5/14 ,  H04W72/12 ,  H04W88/04

    Abstract: Methods, systems, and devices for wireless communications are described that provide for resource allocation in an integrated access and backhaul (IAB) network. A relay node in an IAB network may be assigned a first resource partition that is different from a second resource partition for the child and parent nodes. Based on a resource configuration (e.g., for a slot) of the second resource partition, the relay node may opportunistically utilize the second resource partition for communications. For instance, the relay node may determine a direction table based on the resource configurations of the child and parent nodes, which may be used to perform uplink or downlink communications in one or more symbols of the second resource partition. The relay node may also identify flexible symbols as free or non-free when determining the direction table.

    Distributed joint access for unlicensed sidelink
    436.
    发明授权
    Distributed joint access for unlicensed sidelink 有权

    公开(公告)号：US10887852B2

    公开(公告)日：2021-01-05

    申请号：US16452388

    申请日：2019-06-25

    Applicant: QUALCOMM Incorporated

    Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

    IPC: H04W56/00 ,  H04W74/08 ,  H04W76/14 ,  H04W16/14 ,  H04W84/04 ,  H04W88/04

    Abstract: Aspects of the disclosure relate to distributed joint access of an unlicensed sidelink channel. Each sidelink device may perform independent and asynchronous listen before talk (LBT) of the unlicensed sidelink channel with a respective back-off time. The first sidelink device to complete back-off may transmit a joint access synchronization (JAS) signal indicating a duration of time that the unlicensed sidelink channel may be accessed by sidelink devices. Synchronized access sharing of the unlicensed sidelink channel across different active sidelinks may then be achieved through distributed handshake signaling.

    Predictive beamforming and subarray selection
    440.
    发明授权
    Predictive beamforming and subarray selection 有权

    公开(公告)号：US10863399B2

    公开(公告)日：2020-12-08

    申请号：US15925423

    申请日：2018-03-19

    Applicant: QUALCOMM Incorporated

    Inventor： Junyi Li ,  Ashwin Sampath ,  Ozge Koymen

    IPC: H04L27/00 ,  H04B7/04 ,  H01Q1/00 ,  H04B7/08 ,  H04W8/02 ,  H04W36/00 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0408 ,  H04W36/30 ,  H04L25/03

    Abstract: A wireless device of the present disclosure may be able to reduce the time needed to determine a subarray and/or beamforming direction used for mmW communication. An apparatus may maintain first information associated with a correlation between each of a plurality of wireless device orientations and a plurality of nodes, at least one subarray, and a corresponding beamforming direction. The apparatus may communicate with a first node using a first beamforming direction selected from the first information. In certain aspects, the first beamforming direction may be correlated with a first orientation of a first subarray at the wireless device and the first node. The apparatus may perform a handoff procedure from the first node to a second node when a position of the first subarray changes from the first orientation to a second orientation.

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