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    A REFERENCE SIGNAL DESIGN FOR A SYSTEM OPERATING ABOVE 52.6 GIGAHERTZ (GHZ) CARRIER FREQUENCY
    2.
    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.

    Downlink Transmission in TDD Supporting feNB-IoTs
    3.
    发明申请
    Downlink Transmission in TDD Supporting feNB-IoTs 有权

    公开(公告)号：US20230089890A1

    公开(公告)日：2023-03-23

    申请号：US17994835

    申请日：2022-11-28

    Applicant: Apple Inc.

    Inventor： Seunghee HAN ,  Debdeep CHATTERJEE ,  Qiaoyang YE

    IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04L27/26

    Abstract: Embodiments of a User Equipment (UE), generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive, from a gNB, a narrowband physical downlink control channel (NPDCCH) that indicates a number of narrowband internet-of-things (NB-IoT) downlink subframes for a downlink scheduling delay of a narrowband physical downlink shared channel (NPDSCH) in one or more radio frames configured for time-division duplexing (TDD) operation. Subframes of the one or more radio frames may include uplink subframes, NB-IoT downlink subframes for downlink NB-IoT transmissions, and downlink subframes for other downlink transmissions. The UE may determine the downlink scheduling delay based on an earliest subframe for which a count of NB-IoT downlink subframes is equal to the number of NB-IoT downlink subframes indicated in the NPDCCH.

    SYSTEMS AND METHODS OF PROVIDING NEW RADIO POSITIONING
    5.
    发明申请
    SYSTEMS AND METHODS OF PROVIDING NEW RADIO POSITIONING 有权

    公开(公告)号：US20220110085A1

    公开(公告)日：2022-04-07

    申请号：US17422101

    申请日：2020-01-10

    Applicant: Apple Inc.

    Inventor： Alexey KHORYAEV ,  Sergey SOSNIN ,  Gang XIONG ,  Seunghee HAN ,  Sergey PANTELEEV

    IPC: H04W64/00 ,  H04L5/00

    Abstract: Systems and methods are provided to determine an estimated location of a user equipment (UE). For instance, a UE can provide a positioning request to a node while the UE is in a radio resource control idle (RRC_IDLE) or inactive (RRC_INACTIVE) state. The positioning request can be implemented in a random access channel (RACH) message A (MsgA). The UE can then receive a positioning response from the node. The positioning response can be implemented in a RACH message B (MsgB).

    SCHEDULING OF PDSCH TRANSMISSION WITH DFT-S-OFDM WAVEFORM
    6.
    发明申请
    SCHEDULING OF PDSCH TRANSMISSION WITH DFT-S-OFDM WAVEFORM 有权

    公开(公告)号：US20220078767A1

    公开(公告)日：2022-03-10

    申请号：US17419589

    申请日：2020-02-03

    Applicant: Apple Inc.

    Inventor： Gang XIONG ,  Yushu ZHANG ,  Daewon LEE ,  Jie ZHU ,  Seunghee HAN

    IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26

    Abstract: An approach is described for a wireless communication for a fifth generation (5G) or new radio (NR) system. The wireless communication includes a gNode (gNB) configured to indicate a time domain resource allocation within one Discrete Fourier Transform (DFT) size in a downlink control information (DCI), and to transmit a physical downlink shared channel (PDSCH) with a Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform in accordance with the time domain resource allocation within the one DFT size.

    Scrambling of Physical Broadcast Channel (PBCH)
    9.
    发明申请
    Scrambling of Physical Broadcast Channel (PBCH) 有权

    公开(公告)号：US20220330208A1

    公开(公告)日：2022-10-13

    申请号：US17825035

    申请日：2022-05-26

    Applicant: Apple Inc.

    Inventor： Dae Won LEE ,  Seunghee HAN ,  Gregory Vladimirovich MOROZOV ,  Alexei DAVYDOV ,  Yongjun KWAK

    IPC: H04W72/00 ,  H04J11/00 ,  H04L1/00 ,  H04L1/16 ,  H04W56/00 ,  H04W72/04

    Abstract: A user equipment (UE) can include processing circuitry configured to decode physical broadcast channel (PBCH) information received from a base station (BS). The decoded PBCH information includes a scrambled PBCH payload and an unscrambled bit sequence. A scrambling sequence is generated based on time information signaling within the unscrambled bit sequence. The scrambled PBCH payload is de-scrambled using the scrambling sequence, to obtain master information block (MIB) information. System information block (SIB) information is decoded based on the MIB information. The decoded PBCH information includes cyclic redundancy check (CRC) information. The scrambled PBCH payload and the unscrambled bit sequence can be verified based on the CRC information. The time information signaling includes one or more bits of a system frame number (SFN).

    2-STEP RACH INITIATED BY PDCCH ORDER
    10.
    发明申请
    2-STEP RACH INITIATED BY PDCCH ORDER 有权

    公开(公告)号：US20220095388A1

    公开(公告)日：2022-03-24

    申请号：US17420097

    申请日：2020-02-17

    Applicant: Apple Inc.

    Inventor： Sergey SOSNIN ,  Gang XIONG ,  Alexey KHORYAEV ,  Seunghee HAN

    IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

    Abstract: An approach is described for a base station (gNB) that includes the following features. The features include transmitting, by the gNB, a PDCCH signal to a user equipment (UE), wherein the PDCCH signal includes an indication of a PDCCH ordered 2-step RACH procedure. The features also include receiving, by the gNB, a first step of the 2-step RACH procedure, wherein the first step includes a PRACH preamble and an associated MsgA physical uplink shared channel (PUSCH) from the UE.

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