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    METHOD AND UE FOR POWER CONTROL FOR TWO-STEP RANDOM ACCESS PROCEDURE
    32.
    发明申请
    METHOD AND UE FOR POWER CONTROL FOR TWO-STEP RANDOM ACCESS PROCEDURE 有权

    公开(公告)号：US20220167424A1

    公开(公告)日：2022-05-26

    申请号：US17441181

    申请日：2020-05-04

    Applicant: Apple Inc.

    Inventor： Yushu ZHANG ,  Gang XIONG ,  Hong HE ,  Sergey SOSNIN

    IPC: H04W74/08 ,  H04W52/36 ,  H04W52/16 ,  H04W72/12

    Abstract: Techniques are provided for implementing power control in a 2-step random access channel (RACH) procedure, including implementing power control during MsgA transmission of the 2-step RACH procedure. For example, a user equipment (UE) determines a transmission power for a physical uplink shared channel (PUSCH) transmission based on a transmission power of a physical random access channel (PRACH) preamble that is associated with the PUSCH transmission during the 2-step RACH procedure. The UE further performs the 2-step RACH procedure using the determined transmission power of the PUSCH to establish a connection to the wireless network.

    ON THE FRAME STRUCTURE DESIGN FOR SINGLE CARRIER WAVEFORM
    33.
    发明申请
    ON THE FRAME STRUCTURE DESIGN FOR SINGLE CARRIER WAVEFORM 有权

    公开(公告)号：US20220166580A1

    公开(公告)日：2022-05-26

    申请号：US17426387

    申请日：2020-02-03

    Applicant: Apple Inc.

    Inventor： Jie ZHU ,  Gang XIONG ,  Daewon Lee

    IPC: H04L5/00 ,  H04L27/26

    Abstract: An approach is described for a method for a fifth generation (5G) wireless communication or a new radio (NR) system that includes the following steps. The method includes generating data samples associated with a sampling rate. The method further includes generating a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform. The method further includes transmitting the waveform using front end circuitry, wherein the waveform is a single carrier waveform, and wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform.

    A REFERENCE SIGNAL DESIGN FOR A SYSTEM OPERATING ABOVE 52.6 GIGAHERTZ (GHZ) CARRIER FREQUENCY
    34.
    发明申请
    A REFERENCE SIGNAL DESIGN FOR A SYSTEM OPERATING ABOVE 52.6 GIGAHERTZ (GHZ) CARRIER FREQUENCY 有权

    公开(公告)号：US20220116252A1

    公开(公告)日：2022-04-14

    申请号：US17421984

    申请日：2020-01-09

    Applicant: Apple Inc.

    Inventor： Gang XIONG ,  Yushu ZHANG ,  Daewon LEE ,  Alexei DAVYDOV ,  Seunghee HAN ,  Jie Zhu

    IPC: H04L27/26 ,  H04L5/00

    Abstract: For single carrier based waveform, Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) and single carrier with a frequency domain equalizer (SC-FDE) can be considered for both DL and UL. For OFDM based transmission scheme including DFT-s-OFDM, a cyclic prefix (CP) is inserted at the beginning of each block, where the last data symbols in a block is repeated as the CP. Typically, the length of CP exceeds the maximum expected delay spread in order to overcome the inter-symbol interference (ISI). For SC-FDE transmission scheme, a known sequence (guard interval (GI), unique word (UW), etc.) can be inserted at both the beginning and end of one block. Further, a linear equalizer in the frequency domain can be employed to reduce the receiver complexity. Compared to OFDM, SC-FDE transmission scheme can reduce Peak to Average Power Ratio (PAPR) and thus allow the use of less costly power amplifier.

    RESOURCE CONFIGURATION SCHEMES FOR AN INTEGRATED ACCESS AND BACKHAUL DISTRIBUTED UNIT
    35.
    发明申请
    RESOURCE CONFIGURATION SCHEMES FOR AN INTEGRATED ACCESS AND BACKHAUL DISTRIBUTED UNIT 有权

    公开(公告)号：US20220110112A1

    公开(公告)日：2022-04-07

    申请号：US17429568

    申请日：2020-02-12

    Applicant: Apple Inc.

    Inventor： Lili WEI ,  Qian LI ,  Dawei YING ,  Gang XIONG ,  Geng WU

    IPC: H04W72/04

    Abstract: Resource allocation is provided for an integrated access and backhaul (IAB) network, such as a distributed unit (DU) of an IAB. Methods and systems include configuring one or more resources to allocate time-domain or frequency domain availability/utilization. Configurations of resources can be aligned between one or more nodes such that resource availability of a first node can be coupled to resources of a second node. Allocated resources can include uplink, downlink, and flexible resources. Allocated resources can be indicated as not available, hard, or soft resource types. A configuration pattern can indicate a sequence of time-domain resource or frequency domain resource availability of a DU in the IAB network.

    SYSTEM AND METHOD FOR POWER CONTROL FOR 2-STEP RACH
    36.
    发明申请
    SYSTEM AND METHOD FOR POWER CONTROL FOR 2-STEP RACH 有权

    公开(公告)号：US20220086765A1

    公开(公告)日：2022-03-17

    申请号：US17423713

    申请日：2020-01-17

    Applicant: Apple Inc.

    Inventor： Yushu ZHANG ,  Gang XIONG ,  Hong HE

    IPC: H04W52/14 ,  H04W74/08 ,  H04W52/36 ,  H04W52/16

    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for power control aspects for MsgA physical uplink shared channel (PUSCH). The approach includes determining a transmission power for a PUSCH associated with a physical random access channel (PRACH) in a 2-step random access channel (RACH) mode, where the transmission power for the PUSCH is determined based on a transmission power of the associated PRACH and a power offset. The approach further includes ramping up a transmission power of the PRACH and PUSCH until a maximum transmission power is reached.

    TIMING DETERMINATION TECHNIQUES FOR 5G RADIO ACCESS NETWORK CELLS
    39.
    发明申请
    TIMING DETERMINATION TECHNIQUES FOR 5G RADIO ACCESS NETWORK CELLS 有权

    公开(公告)号：US20220400509A1

    公开(公告)日：2022-12-15

    申请号：US17890574

    申请日：2022-08-18

    Applicant: Apple Inc.

    Inventor： Gang XIONG ,  Debdeep CHATTERJEE ,  Ajit NIMBALKER ,  Hong HE

    IPC: H04W72/12 ,  H04W76/27 ,  H04W72/04 ,  H04W74/08

    Abstract: Disclosed herein are timing determination techniques for 5G radio access network (RAN) cells. According to various such techniques, during a random access procedure, a user equipment (UE) may receive a grant of resources for an uplink (UL) data transmission in a random access response (RAR) message. The UE may identify a scheduled slot for the UL data transmission based on a received slot of the RAR message and an applicable slot offset value. The applicable slot offset value may indicate a number of slots by which the received slot precedes the scheduled slot. The applicable slot offset value may be identified using the various techniques described herein.

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