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    TIMING ADJUSTMENTS WITH MIXED NUMEROLOGIES
    281.
    发明申请
    TIMING ADJUSTMENTS WITH MIXED NUMEROLOGIES 有权

    公开(公告)号：US20210266855A1

    公开(公告)日：2021-08-26

    申请号：US17318668

    申请日：2021-05-12

    Applicant: QUALCOMM Incorporated

    Inventor： Sony Akkarakaran ,  Peter Gaal ,  Muhammad Nazmul Islam ,  Amir Aminzadeh Gohari ,  Peter Pui Lok Ang ,  Tao Luo

    IPC: H04W56/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

    Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to interpreting a timing advance (TA) command for members of a timing advance group (TAG), such as different uplink component carriers and/or different bandwidth parts, having different numerologies, such as different subarrier spacing (SCS). A method that may be performed by a user equipment (UE) includes receiving, from a base station (BS), a TA command. The UE interprets the TA command differently for different members of a same TAG, associated with different numerologies. The UE applies a timing adjustment when transmitting an uplink transmission to the BS based, at least in part, on the interpretation.

    Timing offset techniques in wireless communications
    283.
    发明授权
    Timing offset techniques in wireless communications 有权

    公开(公告)号：US11082941B2

    公开(公告)日：2021-08-03

    申请号：US16450325

    申请日：2019-06-24

    Applicant: QUALCOMM incorporated

    Inventor： Navid Abedini ,  Muhammad Nazmul Islam ,  Jianghong Luo ,  Wanshi Chen ,  Tao Luo ,  Junyi Li

    IPC: H04W56/00 ,  H04W74/08

    Abstract: Methods, systems, and devices for wireless communications are described that provide for multiple timing advance offsets that may be used in communications between wireless devices on a wireless communications system. A first timing advance offset may be a fixed offset that has a predetermined value or is selected from a set of available predetermined values, and a second timing advance offset may be adjustable by a wireless device. The second timing advance offset may be used in cases where relatively large distances between wireless devices are present in a system, where certain fixed timing advances are used in addition to or irrespective of a receiving devices propagation delay, where one or more parent nodes have an associated timing reference, or combinations thereof.

    Optimized secondary synchronization signal
    287.
    发明授权
    Optimized secondary synchronization signal 有权

    公开(公告)号：US11044072B2

    公开(公告)日：2021-06-22

    申请号：US15367475

    申请日：2016-12-02

    Applicant: QUALCOMM Incorporated

    Inventor： Navid Abedini ,  Sundar Subramanian ,  Junyi Li ,  Muhammad Nazmul Islam ,  Juergen Cezanne ,  Bilal Sadiq ,  Tao Luo

    IPC: H04L7/00 ,  H04W56/00 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26

    Abstract: Methods, systems, and devices for wireless communication are described. A wireless communications system operating in millimeter wave (mmW) spectrum may utilize synchronization signals for beam tracking. A synchronization signal (e.g., primary synchronization signals (PSS), secondary synchronization signals (SSS), etc.), beam reference signal, and/or control signal may be designed to facilitate beam tracking. A synchronization signal structure based on a repeated sequence in the time domain may facilitate searching for different beams in a timely manner. In some cases, the repeated synchronization signal structure may be achieved by using a larger tone spacing, and hence having shorter symbol duration and repeating the short symbols in the time domain. The repeated structure may be further used to encode additional information (e.g., facilitated by the resulting additional degrees of freedom). Additionally or alternatively, a synchronization signal (e.g., SSS) may be discrete Fourier transform (DFT) pre-coded to achieve better peak-to-average-power-ratio (PAPR).

    Discontinuous reception wake up procedures
    288.
    发明授权
    Discontinuous reception wake up procedures 有权

    公开(公告)号：US11039499B2

    公开(公告)日：2021-06-15

    申请号：US16033013

    申请日：2018-07-11

    Applicant: QUALCOMM Incorporated

    Inventor： Muhammad Nazmul Islam ,  Ashwin Sampath ,  Sundar Subramanian ,  Juergen Cezanne ,  Sumeeth Nagaraja ,  Jianghong Luo

    IPC: H04W56/00 ,  H04W76/28 ,  H04L5/00 ,  H04W52/02 ,  H04B7/06 ,  H04B7/08 ,  H04W72/04 ,  H04W16/28

    Abstract: Methods, systems, and devices for wireless communication are described for discontinuous reception (DRX) wake up procedures over millimeter wave (mmW) frequency resources. A base station may use multiple antenna ports to transmit one or more beamformed downlink transmissions to a user equipment (UE). The downlink transmissions may include beam-swept reference signals, and the UE may initiate a wake up procedure prior to a configured DRX-On cycle to receive the reference signals. Based on the reception of the reference signals, the UE may train a set of receive beams and determine a preferred downlink transmit beam. The base station may subsequently transmit at least a portion of a cell radio network temporary identifier (C-RNTI) in a beam-swept manner, and the UE may evaluate the C-RNTI transmission on the preferred transmit beam. The UE may also transmit an uplink response indicating the preferred transmit beam to receive downlink data.

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