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    AUTONOMOUS SIDELINK OVER UNLICENSED BAND
    302.
    发明申请
    AUTONOMOUS SIDELINK OVER UNLICENSED BAND 有权

    公开(公告)号：US20210219283A1

    公开(公告)日：2021-07-15

    申请号：US17247121

    申请日：2020-11-30

    Applicant: QUALCOMM INCORPORATED

    Inventor： Yisheng Xue ,  Chih-Hao Liu ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei

    IPC: H04W72/04 ,  H04W28/26

    Abstract: Wireless communications systems and methods related to autonomous sidelink communication are provided. A first user equipment (UE) communicates, in a first subband of a plurality of subbands within a shared radio frequency band during a first time period, first sidelink control information (SCI) associated with a second subband of the plurality of subbands. The first UE communicates, with the second UE, first sidelink data in the second subband during the first time period based on the first SCI. The first UE communicates, with the second UE in the first subband during a second time period, second SCI associated with a third subband of the plurality of subbands, the third subband being different from the second subband based on a frequency hopping pattern. The first UE communicates, with the second UE, second sidelink data in the third subband during the second time period based on the second SCI.

    Random access procedure fallback
    303.
    发明授权
    Random access procedure fallback 有权

    公开(公告)号：US11064537B2

    公开(公告)日：2021-07-13

    申请号：US16746704

    申请日：2020-01-17

    Applicant: QUALCOMM Incorporated

    Inventor： Xiaoxia Zhang ,  Jing Sun ,  Sony Akkarakaran ,  Muhammad Nazmul Islam ,  Tao Luo

    IPC: H04W74/08 ,  H04W76/10

    Abstract: This disclosure provides systems, methods and apparatus for wireless communications that support fallback from a 2-step to a 4-step random access procedures. A user equipment (UE) may establish a connection with a base station using a random access procedure. The random access procedure may be a 2-step random access procedure and reduce a number of handover exchange messages. The 2-step random access procedure may include the UE transmitting, to the base station, a first random access message including a preamble and a payload. In some implementations, the base station may receive the preamble but fail to receive or decode the payload. The random access procedure may utilize the received preamble information instead of performing retransmission of the first random access message. The base station may transmit a second random access message to the UE indicating, explicitly or implicitly, a fallback to a 4-step random access procedure for connection establishment.

    Channel reservation signal design with different numerology
    304.
    发明授权
    Channel reservation signal design with different numerology 有权

    公开(公告)号：US11064396B2

    公开(公告)日：2021-07-13

    申请号：US16125258

    申请日：2018-09-07

    Applicant: QUALCOMM Incorporated

    Inventor： Zhifei Fan ,  Xiaoxia Zhang ,  Jing Sun ,  Aleksandar Damnjanovic

    IPC: H04W28/26 ,  H04W74/08 ,  H04W72/04 ,  H04W16/14

    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for transmitting channel reservation signals. In one example, a device used a gating interval to gain access to a channel of a shared spectrum, performs a clear channel assessment to determine if the channel is available, selects a channel reservation signal from among a plurality of predetermined channel reservation signals if the channel is clear, and transmits the channel reservation signal upon the channel being clear. The channel reservation signal comprises a preamble, and a message, wherein the CR preamble and the CR message use a common numerology understood by at least one of different radio access technologies, and different numerologies in the same radio access technology, and the radio access technologies comprise WIFI and NR-SS.

    Frame-based initiator device operation
    305.
    发明授权
    Frame-based initiator device operation 有权

    公开(公告)号：US11057885B2

    公开(公告)日：2021-07-06

    申请号：US16391001

    申请日：2019-04-22

    Applicant: QUALCOMM incorporated

    Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Tamer Kadous ,  Yongbin Wei

    IPC: H04W72/04 ,  H04W72/12 ,  H04W74/08

    Abstract: Methods, systems, and devices for wireless communications are described that provide for frame-based initiator device operations. A wireless device may be operating within a frame-based equipment communications system, where a frame may include a channel occupancy time period and a minimum idle period. An initiating device may be configured to initiate autonomous uplink communications during the channel occupancy time period of its frame, while the device may not initiate communications during an idle period of its frame. In some cases, a frame-based equipment communications system may include more than one initiating device, where the idle periods for different initiating devices may occur at different times. In some cases, the initiating device may be configured to initiate communications during the idle period for another initiating device. This may allow the wireless system to decrease system overhead associated with a minimum idle period per frame.

    Cancellation policy for radio resource control configured uplink transmissions
    307.
    发明授权
    Cancellation policy for radio resource control configured uplink transmissions 有权

    公开(公告)号：US11051357B2

    公开(公告)日：2021-06-29

    申请号：US16363730

    申请日：2019-03-25

    Applicant: QUALCOMM Incorporated

    Inventor： Jing Sun ,  Xiaoxia Zhang ,  Tao Luo

    IPC: H04W76/30 ,  H04W72/04 ,  H04W76/11 ,  H04W76/27

    Abstract: Methods, systems, and devices for wireless communication are described. The examples described herein provide a procedure at a user equipment (UE) for determining whether to transmit radio resource control (RRC) configured uplink signals to a base station based on detected slot format indications (SFIs) and/or undetected SFIs in multiple control channels. In particular, a UE may identify multiple control channels configured to include SFIs from a base station, and, as described herein, the UE may determine whether to transmit RRC configured uplink signals in a set of symbols based on a configuration of the set of symbols (e.g., uplink, downlink, or flexible) determined based on detected SFIs and/or undetected SFIs in the multiple control channels. The UE may be able to determine whether to transmit RRC configured uplink signals in a set of symbols based on any combination of detected SFIs and undetected SFIs.

    UPLINK (UL) TO DOWNLINK (DL) CHANNEL OCCUPANCY TIME (COT) SHARING WITH SCHEDULED UL IN NEW RADIO-UNLICENSED (NR-U)
    308.
    发明申请
    UPLINK (UL) TO DOWNLINK (DL) CHANNEL OCCUPANCY TIME (COT) SHARING WITH SCHEDULED UL IN NEW RADIO-UNLICENSED (NR-U) 有权

    公开(公告)号：US20210195638A1

    公开(公告)日：2021-06-24

    申请号：US17249586

    申请日：2021-03-05

    Applicant: QUALCOMM INCORPORATED

    Inventor： Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad

    IPC: H04W74/08 ,  H04W72/14 ,  H04L5/00 ,  H04L5/10 ,  H04W72/12

    Abstract: Wireless communications systems and methods related to sharing a channel occupancy time (COT) associated with a scheduled UL transmission in a frequency spectrum shared by multiple network operating entities are provided. A first wireless communication device communicates, with a second wireless communication device, a first uplink (UL) scheduling grant. The first wireless communication device communicates, with second wireless communication device, a first UL communication signal based on the first UL scheduling grant during a first COT, the first COT based on an extended clear channel assessment (eCCA) associated with the first UL communication signal. The first wireless communication device communicates, with the second wireless communication device, a downlink (DL) communication signal during the first COT based on COT sharing information associated with the first COT.

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