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    Contention window updates with integrated access and backhaul nodes for unlicensed operations
    111.
    发明授权
    Contention window updates with integrated access and backhaul nodes for unlicensed operations 有权

    公开(公告)号：US11490419B2

    公开(公告)日：2022-11-01

    申请号：US17092178

    申请日：2020-11-06

    Applicant: QUALCOMM Incorporated

    Inventor： Xiaoxia Zhang ,  Jing Sun ,  Jianghong Luo ,  Tao Luo ,  Navid Abedini

    IPC: H04W74/08 ,  H04L47/27

    Abstract: Methods, systems, and devices for wireless communications are described. An integrated access and backhaul (IAB) system may perform contention window updates on an IAB node for different components of the IAB node. In some implementations, the IAB node may perform separate contention window updates in separate reference durations for the different components. Additionally or alternatively, the IAB node may perform a joint contention window update for the different components, where a single reference duration for updating contentions windows for the components may be defined for the IAB node that includes transmissions for both components. Additionally or alternatively, the IAB node may perform separate contention window updates for the different components based on the single reference duration that includes transmissions for both components, where feedback may be used separately to update corresponding contention windows.

    Signaling to support mobile integrated access and backhaul
    114.
    发明授权
    Signaling to support mobile integrated access and backhaul 有权

    公开(公告)号：US11445356B2

    公开(公告)日：2022-09-13

    申请号：US16947496

    申请日：2020-08-04

    Applicant: QUALCOMM Incorporated

    Inventor： Navid Abedini ,  Karl Georg Hampel ,  Jianghong Luo ,  Naeem Akl ,  Luca Blessent ,  Tao Luo ,  Junyi Li

    IPC: H04W4/00 ,  H04W8/08

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive mobility state information associated with an integrated access backhaul (IAB) node. The mobility state information may include information associated with at least one of: a level of mobility of the IAB node, or a change in mobility of the IAB node. The wireless communication device may perform an operation based at least in part on the mobility state information associated with the IAB node. In some aspects, a wireless communication device may determine that mobility state information associated with an IAB node is to be transmitted, and may transmit the mobility state information associated with the IAB node based at least in part on the determination. Numerous other aspects are provided.

    MODIFIED BACKHAUL RANDOM ACCESS CHANNEL
    115.
    发明申请
    MODIFIED BACKHAUL RANDOM ACCESS CHANNEL 有权

    公开(公告)号：US20220279600A1

    公开(公告)日：2022-09-01

    申请号：US17741372

    申请日：2022-05-10

    Applicant: QUALCOMM Incorporated

    Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Tao Luo ,  Jianghong Luo

    IPC: H04W74/08 ,  H04L5/00 ,  H04W74/00 ,  H04W52/14 ,  H04W72/04

    Abstract: Methods, systems, and devices for wireless communications are described that support different, or adjusted, random access channel (RACH) preamble formats for efficient use of shared RACH time-frequency resources. The described techniques provide for assigning different RACH preamble formats to wireless devices that have a higher link budget, whereupon the devices may transmit the different RACH preamble using the link budget available to them in one or more RACH transmission opportunities in the shared RACH time-frequency resources. Such methods, systems, and devices may allow for more RACH transmission opportunities, as well as less interference between RACH transmissions. For example, wireless devices communicating over a backhaul network may have a higher link budget than wireless devices communicating over an access network. As such, RACH preambles transmitted by the wireless devices communicating over the backhaul network may be shorter than RACH preambles transmitted by the wireless devices communicating over the access network.

    TIMING ADJUSTMENT TECHNIQUES IN WIRELESS COMMUNICATIONS
    117.
    发明申请
    TIMING ADJUSTMENT TECHNIQUES IN WIRELESS COMMUNICATIONS 有权

    公开(公告)号：US20220272696A1

    公开(公告)日：2022-08-25

    申请号：US17688500

    申请日：2022-03-07

    Applicant: QUALCOMM Incorporated

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

    IPC: H04W72/04 ,  H04L5/00

    Abstract: Methods, systems, and devices for wireless communications are described that provide for timing adjustments that may be used in communications between wireless devices in a wireless communications system and signaling of such timing adjustments using physical layer signaling (e.g., layer 1 (L1) signaling). A first timing adjustment may be provided by a parent node to one or more associated child nodes that corresponds to a propagation delay between the parent node and its control node or a relay node through which the parent node communicates with a core network. In some cases, the physical layer signaling used to transmit the first timing adjustment may be a reference signal transmission, a downlink control information transmission, or any combination thereof.

    Physical cell identifier (PCI) selection based on primary synchronization signal (PSS) waveform
    119.
    发明授权
    Physical cell identifier (PCI) selection based on primary synchronization signal (PSS) waveform 有权

    公开(公告)号：US11374671B2

    公开(公告)日：2022-06-28

    申请号：US16985102

    申请日：2020-08-04

    Applicant: QUALCOMM Incorporated

    Inventor： Navid Abedini ,  Jianghong Luo ,  Tao Luo ,  Junyi Li

    IPC: H04J11/00 ,  H04W16/32 ,  H04L61/30 ,  H04W88/08

    Abstract: Aspects relate to a physical cell identifier (PCI) change within a wireless network based on a primary synchronization signal (PSS) waveform. A scheduling entity, such as an integrated-access-backhaul (IAB) node within a radio access network (RAN), may communicate with a set of one or more scheduled entities, such as other IAB nodes and/or user equipment (UEs), utilizing a first PCI. The scheduling entity may then change from the first PCI to a second PCI, where the second PCI corresponds to a different PSS waveform than the first PCI. In some examples, the scheduling entity may change the PCI as a result of a PCI collision and/or PSS collision with a neighboring scheduling entity.

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