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    NETWORK-COORDINATED MODE 2 SIDELINK IN UNLICENSED SPECTRUM
    82.
    发明公开
    NETWORK-COORDINATED MODE 2 SIDELINK IN UNLICENSED SPECTRUM 审中-公开

    公开(公告)号：US20240057141A1

    公开(公告)日：2024-02-15

    申请号：US17819164

    申请日：2022-08-11

    Applicant: QUALCOMM Incorporated

    Inventor： Jae Ho RYU ,  Chih-Hao LIU ,  Hari SANKAR

    IPC: H04W72/12 ,  H04W74/08 ,  H04W16/14

    CPC classification number: H04W72/1252 ,  H04W74/0808 ,  H04W16/14

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network node and via a buffer status report (BSR) or scheduling request (SR), a request indicating one or more parameters associated with sidelink communications in an unlicensed spectrum. The UE may receive, from the network node, a sidelink resource allocation indicating one or more resource block (RB) sets associated with the unlicensed spectrum. The UE may transmit, to a sidelink UE and based at least in part on the sidelink resource allocation and on a result of performing listen-before-talk (LBT), a sidelink communication. Numerous other aspects are described.

    MINI-SLOT CHANNEL ACCESS FOR A SIDELINK USER EQUIPMENT (UE)
    83.
    发明公开
    MINI-SLOT CHANNEL ACCESS FOR A SIDELINK USER EQUIPMENT (UE) 审中-公开

    公开(公告)号：US20240057126A1

    公开(公告)日：2024-02-15

    申请号：US18448096

    申请日：2023-08-10

    Applicant: QUALCOMM Incorporated

    Inventor： Chih-Hao LIU ,  Jae Ho RYU ,  Giovanni CHISCI ,  Hobin KIM ,  Jing SUN ,  Xiaoxia ZHANG

    IPC: H04W72/25 ,  H04W74/08

    CPC classification number: H04W72/25 ,  H04W74/0808

    Abstract: A method for wireless communication at a first sidelink user equipment (UE) includes performing, in a shared radio frequency band, a listen-before-talk (LBT) for a channel occupancy time (COT). The method also includes selecting a full-slot sidelink channel waveform hypothesis associated with a first starting symbol, or a half-slot sidelink channel waveform hypothesis associated with a second starting symbol, in accordance with a timing associated with clearing the LBT. The method further includes transmitting, during the COT, sidelink information to a second sidelink UE, a transport block size (TBS) associated with the COT having a fixed number of resources, the fixed number of resources being a same number of resources for full-slot sidelink channel waveform hypothesis and the half-slot sidelink channel waveform hypothesis.

    PEER-TO-PEER BEAMFORMING ALIGNMENT IN NEW RADIO (NR) SIDELINK (SL) MODE 2
    84.
    发明公开
    PEER-TO-PEER BEAMFORMING ALIGNMENT IN NEW RADIO (NR) SIDELINK (SL) MODE 2 审中-公开

    公开(公告)号：US20230387973A1

    公开(公告)日：2023-11-30

    申请号：US18304665

    申请日：2023-04-21

    Applicant: QUALCOMM Incorporated

    Inventor： Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Chih-Hao LIU

    IPC: H04B7/0456 ,  H04B7/0417

    CPC classification number: H04B7/0456 ,  H04B7/0417

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support mechanisms for sidelink beamforming alignment over a set of resources based on a deterministic sequence in a wireless communication system. In aspects, an sidelink initiator user equipment (UE) may initiate a beamforming alignment procedure with a responder UE over a the sidelink. The initiator UE may define a set of subchannels specified by a deterministic sequence. The set of subchannels may be subchannels over which the initiator UE may perform reception beam sweeping. The deterministic sequence may be anchored to a direct frame number (DFN) of the sidelink frame without initial sensing, and may be determined via a sequence index, as a function of sidelink UE identification ID(s), or a combination thereof. In this manner, the number of bits for indicating the deterministic sequence to the responder UE may be reasonable, manageable, and/or moderate.

    SIDELINK SYNCHRONIZATION SIGNAL BLOCK TRANSMISSIONS IN A SHARED SPECTRUM
    88.
    发明公开
    SIDELINK SYNCHRONIZATION SIGNAL BLOCK TRANSMISSIONS IN A SHARED SPECTRUM 审中-公开

    公开(公告)号：US20230247528A1

    公开(公告)日：2023-08-03

    申请号：US18000334

    申请日：2020-06-09

    Applicant: QUALCOMM Incorporated

    Inventor： Chih-Hao LIU ,  Jing SUN ,  Xiaoxia ZHANG ,  Yisheng XUE ,  Juan MONTOJO ,  Tao LUO ,  Peter GAAL ,  Changlong XU ,  Ozcan OZTURK

    IPC: H04W48/08 ,  H04W74/08

    CPC classification number: H04W48/08 ,  H04W74/0808

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently identifying resources for transmitting one or more sidelink synchronization signal blocks (S-SSBs) in the shared spectrum or efficiently beam sweeping multiple S-SSBs in the shared spectrum. In one aspect, a user equipment (UE) may transmit an S-SSB in a sidelink bandwidth part (BWP) in the shared spectrum such that a lower edge of the S-SSB is aligned with or offset from a lower edge of the sidelink BWP. In another aspect, a UE may beam sweep S-SSBs in one or more S-SSB bursts in a S-SSB period to improve the chances that another UE may receive the S-SSBs. In yet another aspect, resources allocated for S-SSB transmissions may facilitate flexible S-SSB transmissions while minimizing gaps to prevent other UEs from incorrectly determining that a sidelink BWP in a shared spectrum is clear for transmission.

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