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    ASYNCHRONOUS SPATIAL LBT
    122.
    发明申请
    ASYNCHRONOUS SPATIAL LBT 有权

    公开(公告)号：US20210352719A1

    公开(公告)日：2021-11-11

    申请号：US17380702

    申请日：2021-07-20

    Applicant: QUALCOMM Incorporated

    Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Siddhartha Mallik ,  Aleksandar Damnjanovic

    IPC: H04W74/08 ,  H04B7/06 ,  H04B7/0413 ,  H04W16/14 ,  H04W72/04 ,  H04L5/00

    Abstract: Improvements to asynchronous spatial listen before talk (LBT) procedures are disclosed. In a shared spectrum network spatial LBT procedures are used for directionally targeting the channel reservation process. Prior to transmitting channel reservation signaling, the transmitter and receiver determine an effective interference considering available multiple input, multiple output (MIMO) configuration information. When the effective interference exceeds a predefined threshold, the node may without transmission of its channel reservation signal. Otherwise, when the effective interference remains within the threshold, each node's transmitted channel reservation signal may also identify at least a beamforming matrix either as payload or used to precode the node's channel reservation signal.

    Efficient polar detection with dynamic control and optimization
    124.
    发明授权
    Efficient polar detection with dynamic control and optimization 有权

    公开(公告)号：US11095396B2

    公开(公告)日：2021-08-17

    申请号：US16111036

    申请日：2018-08-23

    Applicant: QUALCOMM Incorporated

    Inventor： Jamie Menjay Lin ,  Siddhartha Mallik

    IPC: H04L1/00 ,  H04W84/04

    Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment (UE) may monitor for a decoding candidate of a codeword, wherein the codeword corresponds to a set of received bit metrics, and the decoding candidate corresponds to a plurality of information bits encoded using a polar code, determine a composite detection metric for the codeword for the decoding candidate, where the composite detection metric is derived from a subset of bit metrics for an intermediate polarization layer of the polar code, and determine a classification for performing a list decoding process on the codeword according to the decoding candidate based at least in part on the composite detection metric.

    Coexistence between spectrum sharing systems and asynchronous channel access systems
    125.
    发明授权
    Coexistence between spectrum sharing systems and asynchronous channel access systems 有权

    公开(公告)号：US11026097B2

    公开(公告)日：2021-06-01

    申请号：US16529691

    申请日：2019-08-01

    Applicant: QUALCOMM Incorporated

    Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Siddhartha Mallik ,  Tamer Kadous

    IPC: H04W4/00 ,  H04W16/14 ,  H04W74/04 ,  H04W72/12

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may select a plurality of channel access intervals during which the device is associated with a priority condition relative to another device for communications by the device, wherein each of the plurality of channel access intervals includes a respective contention interval and a respective transmission opportunity; and may transmit, during a contention interval of a first channel access interval of the plurality of channel access intervals, a signal that includes: channel occupancy information for the device for a first transmission opportunity of the first channel access interval, and information that identifies at least a portion of one or more subsequent channel access intervals, of the plurality of channel access intervals, associated with the device. Numerous other aspects are provided.

    Cross-correlation reduction for control signals
    130.
    发明授权
    Cross-correlation reduction for control signals 有权

    公开(公告)号：US10742353B2

    公开(公告)日：2020-08-11

    申请号：US16376895

    申请日：2019-04-05

    Applicant: QUALCOMM Incorporated

    Inventor： Jamie Menjay Lin ,  Siddhartha Mallik ,  Tamer Kadous

    IPC: H04L1/18 ,  H04L1/00 ,  H04L5/00 ,  H04L5/02 ,  H04L27/26

    Abstract: Methods, systems, and devices for wireless communications are described. In accordance with the described techniques, communicating devices (e.g., an encoder and decoder) may apply an orthogonal cover code to a polar codeword to reduce cross-correlation between different codewords. For example, such techniques may reduce power consumption at a decoding device by providing for earlier decoding termination (e.g., as a result of the reduced cross-correlation). Techniques for generating the cover codes (e.g., on a per-aggregation level basis) and applying the cover codes (e.g., within a search space) are described. Additionally or alternatively, the described techniques may relate to seeding of reference signals used to support decoding of the codewords. Improved orthogonality between reference signal seeds may further suppress codeword recipient ambiguity.

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