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    TWO-STEP RACH FOR NEW RADIO (NR) WITH UNLICENSED OPERATION
    2.
    发明申请
    TWO-STEP RACH FOR NEW RADIO (NR) WITH UNLICENSED OPERATION 审中-公开

    公开(公告)号：WO2020198512A1

    公开(公告)日：2020-10-01

    申请号：PCT/US2020/025023

    申请日：2020-03-26

    Applicant: APPLE INC.

    Inventor： XIONG, Gang ,  KWAK, Yongjun ,  KUNDU, Lopamudra ,  ZHANG, Yushu ,  SOSNIN, Sergey

    IPC: H04W74/08

    Abstract: Systems and methods are described for a 2-Step Random Access Channel (RACH) for New Radio (NR) with unlicensed operation. The systems and methods include at least, generating, by a user equipment (UE), a MsgA of a random access channel (RACH) procedure associated with the NR network, the MsgA having a physical random access channel (PRACH) occasion and an associated physical uplink shared channel (PUSCH) occasion for transmission during the RACH procedure, and transmitting, by the UE, the MsgA to a base station (gNB) over unlicensed spectrum of the NR network during the RACH procedure.

    CONTENTION WINDOW SIZE UPDATES FOR CODE BLOCK GROUP BASED RETRANSMISSION CONFIGURATIONS
    3.
    发明申请
    CONTENTION WINDOW SIZE UPDATES FOR CODE BLOCK GROUP BASED RETRANSMISSION CONFIGURATIONS 审中-公开

    公开(公告)号：WO2020191309A1

    公开(公告)日：2020-09-24

    申请号：PCT/US2020/023900

    申请日：2020-03-20

    Applicant: APPLE INC.

    Inventor： TALARICO, Salvatore ,  XIONG, Gang ,  LI, Yingyang ,  ALDANA, Carlos H.

    IPC: H04L1/18

    Abstract: Apparatuses, systems, and methods for performing contention window size updates for code block group based retransmission configurations in a wireless communication system. A code block group based wireless communication may be performed in unlicensed spectrum. A reference burst of the code block group based wireless communication may be identified. One or more of a number of acknowledgements or a number of negative acknowledgements associated with the reference burst may be identified. A contention window size adjustment may be determined based at least in part on one or more of the number of acknowledgements or the number of negative acknowledgements associated with the reference burst.

    CONTENTION WINDOW SIZE ADJUSTMENT FOR RETRANSMISION OPERATIONS
    5.
    发明申请
    CONTENTION WINDOW SIZE ADJUSTMENT FOR RETRANSMISION OPERATIONS 审中-公开

    公开(公告)号：WO2020167851A1

    公开(公告)日：2020-08-20

    申请号：PCT/US2020/017772

    申请日：2020-02-11

    Applicant: APPLE INC.

    Inventor： TALARICO, Salvatore ,  XIONG, Gang ,  LI, Yingyang ,  ALDANA, Carlos H.

    IPC: H04L1/18 ,  H04W74/08

    Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for facilitating retransmission procedures in New Radio (NR) technologies. Some embodiments are directed to a method that includes determining a contention window size (CWS) of an uplink/downlink (UL/DL) communication channel in a new radio unlicensed (NR-U) spectrum. The method also includes adjusting the CWS based on: defining a reference UL/DL burst set at a predetermined time length independent from a subcarrier spacing and partially spanning an UL/DL burst, and counting one or more code block groups (CBGs) in the reference UL/DL burst. The method further includes scheduling a retransmission of an UL/DL communication in the NR-U spectrum based on the adjusted CWS.

    INTRA-UE MULTIPLEXING IN NEW RADIO SYSTEMS
    6.
    发明申请
    INTRA-UE MULTIPLEXING IN NEW RADIO SYSTEMS 审中-公开

    公开(公告)号：WO2020146892A1

    公开(公告)日：2020-07-16

    申请号：PCT/US2020/013374

    申请日：2020-01-13

    Applicant: APPLE INC.

    Inventor： ISLAM, Toufiqul ,  CHATTERJEE, Debdeep ,  PANTELEEV, Sergey ,  HAMIDI-SEPEHR, Fatemeh ,  XIONG, Gang

    IPC: H04L1/18

    Abstract: Some embodiments of this disclosure include apparatuses and methods for multiplexing uplink (UL) and/or downlink (DL) data transmission packets in user equipment (UE). In some embodiments, the UE may receive a resource configuration from a network node including one or more parameters for establishing a communication channel. The UE may receive a command from the network node indicating a UL grant for packet transmission from the UE. While preparing to transmit a first packet corresponding to the UL grant, the UE may receive a second packet having a higher priority designation, wherein the second packet includes an overlapping symbol with the first packet. The UE may transmit the second packet in view of this higher priority.

    LOW-LATENCY UPLINK SCHEDULING REQUESTS
    7.
    发明申请
    LOW-LATENCY UPLINK SCHEDULING REQUESTS 审中-公开

    公开(公告)号：WO2020146687A1

    公开(公告)日：2020-07-16

    申请号：PCT/US2020/013001

    申请日：2020-01-10

    Applicant: APPLE INC.

    Inventor： LI, Qian ,  XIONG, Gang ,  WU, Geng

    IPC: H04W72/00

    Abstract: Disclosed herein are systems and methods for providing low-latency uplink scheduling requests. For instance, a user equipment (UE) can determine a time of transmission of uplink (UL) data by the UE to a UL device. The UE can further generate control data comprising the determined time of transmission and size information for the UL data. The UE can further provide the control data to the UL device prior to providing the UL data to the UL device. The UE can further receive a UL grant from the UL device. The UE can further provide the UL data to the UL device in response to receiving the UL grant.

    CONTENTION WINDOW SIZE UPDATE FOR CAT.4 LBT FOR CBG BASED RETRANSMISSION IN NR SYSTEMS OPERATING ON UNLICENSED SPECTRUM
    8.
    发明申请
    CONTENTION WINDOW SIZE UPDATE FOR CAT.4 LBT FOR CBG BASED RETRANSMISSION IN NR SYSTEMS OPERATING ON UNLICENSED SPECTRUM 审中-公开

    公开(公告)号：WO2020146607A1

    公开(公告)日：2020-07-16

    申请号：PCT/US2020/012898

    申请日：2020-01-09

    Applicant: APPLE INC.

    Inventor： TALARICO, Salvatore ,  XIONG, Gang ,  LI, Yingyang ,  ALDANA, Carlos H.

    IPC: H04L1/18

    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for wireless communication using an unlicensed spectrum. An access point (AP) operating in the unlicensed spectrum includes a processor circuitry, a transmitter, and a receiver. The processor circuitry is configured to perform a listen before talk (LBT) procedure using an LBT parameter and a maximum channel occupancy time (MCOT) that is compatible with another wireless protocol using the unlicensed spectrum. The processor circuitry is configured to divide a transport block (TB) into a plurality of code block groups (CBGs) for transmission over the unlicensed spectrum. The transmitter is configured to transmit the plurality of CBGs to a destination, and a receiver is configured to receive hybrid automatic repeat and request acknowledgment (HARQ-ACK) information corresponding to the transmitted plurality of CBGs. The processor circuitry is further configured to determine a HARQ-ACK assessment for the TB based on the HARQ-ACK information corresponding to the transmitted plurality of CBGs, and adjust a contention window size based on the HARQ-ACK assessment for the TB.

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