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    Interference coordination in licensed shared radio frequency spectrum
    51.
    发明授权
    Interference coordination in licensed shared radio frequency spectrum 有权

    公开(公告)号：US12167248B2

    公开(公告)日：2024-12-10

    申请号：US17143661

    申请日：2021-01-07

    Applicant: QUALCOMM Incorporated

    Inventor： Aleksandar Damnjanovic ,  Andrei Dragos Radulescu ,  Xiaoxia Zhang

    IPC: H04W16/14 ,  H04B17/318 ,  H04B17/336 ,  H04L5/00 ,  H04W24/10 ,  H04W76/11

    Abstract: Methods, systems, and devices for wireless communications are described in which wireless nodes may use licensed shared radio frequency spectrum band for communications and one or more neighboring networks may use a same licensed shared radio frequency spectrum band. A second network of the one or more neighboring networks may have priority of use of the licensed shared radio frequency spectrum band within a particular geographic area. Disclosed techniques provide that nodes of each network may indicate an identification of the network, a network priority, or both, in over-the-air signaling. Wireless nodes may determine if another neighboring network is present based on the over-the-air signaling, may determine whether the other network has a higher priority, and may adjust one or more transmissions in the event that a higher priority network is identified, such as through reducing transmission power.

    Uplink listen-before-talk failure recovery
    57.
    发明授权
    Uplink listen-before-talk failure recovery 有权

    公开(公告)号：US11553523B2

    公开(公告)日：2023-01-10

    申请号：US17090641

    申请日：2020-11-05

    Applicant: QUALCOMM Incorporated

    Inventor： Ozcan Ozturk ,  Xiaoxia Zhang ,  Jing Sun ,  Andrei Dragos Radulescu

    IPC: H04W74/08 ,  H04W72/04 ,  H04W74/00 ,  H04W76/19 ,  H04W80/02 ,  H04W16/14 ,  H04L5/00

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a bandwidth part (BWP) to switch to after identifying consistent uplink listen-before-talk (LBT) failures on a first BWP based on parameters indicated by a base station. For example, the base station may transmit a switching parameter to the UE that the UE then uses to switch to a second BWP based on identifying the consistent uplink LBT failures on the first BWP. Subsequently, after selecting the second BWP, the UE may attempt to use the second BWP for uplink transmissions (e.g., after performing a random access procedure). Additionally, the UE may indicate the consistent uplink LBT failures to a base station associated with the failed BWP based on a type of cell that is using that failed BWP.

    Rate matching around synchronization signal blocks in unlicensed spectrum
    59.
    发明授权
    Rate matching around synchronization signal blocks in unlicensed spectrum 有权

    公开(公告)号：US11368927B2

    公开(公告)日：2022-06-21

    申请号：US16949762

    申请日：2020-11-13

    Applicant: QUALCOMM Incorporated

    Inventor： Andrei Dragos Radulescu ,  Jing Sun ,  Xiaoxia Zhang

    IPC: H04W56/00

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, and a user equipment (UE) may receive, a bitmap that includes a bit sequence to indicate a synchronization signal block (SSB) transmission pattern. The UE may perform rate matching around one or more candidate SSB positions in an initial portion of a window in which SSB transmission is expected, based at least in part on the bitmap, a first parameter indicating a quantity of initial candidate SSB positions in the window subject to rate matching, and a second parameter indicating a quantity of initial bits in the bit sequence that define the SSB transmission pattern. Numerous other aspects are provided.

    DMTC WINDOW RESERVATION SIGNAL IN NR SHARED SPECTRUM
    60.
    发明申请
    DMTC WINDOW RESERVATION SIGNAL IN NR SHARED SPECTRUM 有权

    公开(公告)号：US20220132408A1

    公开(公告)日：2022-04-28

    申请号：US17647698

    申请日：2022-01-11

    Applicant: QUALCOMM Incorporated

    Inventor： Aleksandar Damnjanovic ,  Andrei Dragos Radulescu ,  Tamer Kadous ,  Jing Sun ,  Xiaoxia Zhang ,  Taesang Yoo

    IPC: H04W48/16 ,  H04W74/04 ,  H04W72/04 ,  H04W28/26

    Abstract: A discovery measurement timing configuration (DMTC) window reservation signal is disclosed for new radio (NR) shared spectrum (NR-SS) networks. The DMTC window is defined providing a reserved location for transmission of essential control signaling and potentially high priority traffic that may be transmitted in a prioritized manner. Access within the DMTC window may be provided with a clear channel assessment (CCA) exempt transmission (CET) option or a non-CET option. When the CET option is used, the reservation duration and period may be conveyed through the channel reservation signal. User equipments (UEs) that detect the reservation signal may re-transmit with added offset to inform neighboring base station that may not be within range of the serving base station. Base station that receive either the transmitted or re-transmitted reservation signal will refrain from communications that may interfere with the reception at the UEs.

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